TWI866604B - Air pump connector - Google Patents

Abstract

An air pump connector includes a housing, a stopper portion, a clamping device, a lever, a limiting member, and a biasing member. The housing has a receiving hole and a channel. The stopper portion is disposed at one end of the housing. The clamping device includes an airtight ring and a pusher. The airtight ring is located between the stopper portion and the pusher and can be elastically deformed by the pusher. The lever has a pivot joint portion pivotally connected to the housing, an actuating portion, and a first engaging portion. The pivot joint portion abuts against the pusher to move the pusher and clamp the airtight ring until it is elastically deformed. The limiting member has a pressing portion, and a second engaging portion detachably engaged to the first engaging portion. The biasing member is arranged between the housing and limiting member to biasing against the limiting member.

Description

Pump chuck

The present invention relates to a pump chuck, and in particular to a pump chuck which can be operated with one hand.

The general air pump nozzle, as shown in the Republic of China's new patent No. M318073, has a nozzle head with a connected assembly hole and a pipe. The top of the assembly hole is equipped with a wrench, and the bottom is equipped with a nozzle for inserting an American nozzle to position. The assembly hole is equipped with a clamp at the top of the nozzle for inserting a French nozzle, and the top of the clamp is equipped with a downward-contracting guide. Hole, and then an injection machine is slidably fitted between the clamp and the wrench. A return spring is provided between the injection machine and the clamp, and a movable claw corresponding to the guide hole is provided at the bottom of the injection machine. A spring is connected to a ejector in the injection machine, so that when the wrench drives the injection machine to move downward, the movable claw can force the air nozzle to deform and clamp the American/French nozzle, so that the ejector can be inflated securely.

However, when using the above-mentioned air pump nozzle, the nozzle of the object to be inflated must be inserted into the nozzle head first, and then the wrench is pulled up to force the nozzle to clamp the nozzle of the object to be inflated. Therefore, the user must use both hands to control the positions of the nozzle of the object to be inflated, the nozzle head and the wrench at the same time, which is quite inconvenient in operation.

In view of the fact that the above-mentioned problems of the prior art cannot be effectively solved and overcome, the applicant has filed this patent application to solve the above-mentioned problems.

The present invention provides a pump chuck which can be connected or disconnected from a gas nozzle by one-hand operation.

The embodiment of the present invention provides a pump chuck, including a shell, a stopper, a clamping device, a lever, a limiter and a biasing member. The shell has a connecting end and an operating end, and the shell is provided with a receiving hole extending from the connecting end to the operating end and an air passage connected to the receiving hole. The stopper is provided at the connecting end. The clamping device includes an airtight ring and an injector movably provided at the receiving hole, the airtight ring is provided between the stopper and the injector and can be directly or indirectly squeezed by the injector to elastically deform to clamp the air nozzle. The lever has a connecting part pivotally connected to the operating end, a pulling part and a first latching part. The hinge part can link the injection machine to move the injection machine relative to the receiving hole to force the airtight ring to deform elastically. The limiter has a pressing part and a second latching part that can be detachably latched on the first latching part. The biasing part is arranged between the limiter and the housing and biases the limiter.

In some embodiments of the present invention, the housing is provided with a hinged groove connected to the receiving hole at the operating end, the lever is hinged in the hinged groove, the limiting member has a limiting portion hinged to the hinged groove, and the second latch portion is formed on the limiting portion.

In some embodiments of the present invention, the first latch portion is formed between the hinge portion and the pull portion, and the pull rod is provided with a pull groove facing the pressing portion on one side of the pull portion.

In some embodiments of the present invention, the container hole extends from the connecting end to the operating end along the axis. The injection nozzle is pressed against the hinge part and moves along the axis to directly or indirectly squeeze the airtight ring, forcing the airtight ring to elastically deform and switch between a compressed state and a restoring state. When the second latching portion of the limiter is latched on the first latching portion of the lever, the airtight ring is in a compressed state and is suitable for clamping the gas nozzle, and the airtight ring has a compressed length along the axis when in the compressed state; when the second latching portion of the limiter is disengaged from the first latching portion of the lever, the airtight ring is in a recovery state and directly or indirectly pushes the injector to move relative to the receiving hole along the axis, and the airtight ring has a recovery length along the axis that is greater than the compression length when in the recovery state.

In some embodiments of the present invention, a contact surface is provided on one side of the injection device adjacent to the operating end. A first contact surface and a second contact surface are provided on the pivot portion of the lever, and the first contact surface and the second contact surface selectively contact the contact surface as the lever pivots relative to the pivot groove.

In some embodiments of the present invention, the first abutting surface and the second abutting surface are adjacent to each other and form an angle greater than 90 degrees.

In some embodiments of the present invention, the pump chuck further includes a first pivot inserted through the pivot portion. There is a first distance from the axis of the first pivot to the first abutting surface, and there is a second distance from the axis of the first pivot to the second abutting surface, and the second distance is smaller than the first distance.

In some embodiments of the present invention, the pump chuck further includes a second pivot passing through the limiter. The limiter is configured to be able to pivot relative to the pivot groove with the axis of the second pivot to switch between a latching position and a disengaged position, so that the second latching portion of the limiter is selectively latched to the first latching portion of the lever.

In one embodiment of the present invention, the limiting member is provided with a positioning portion extending toward the hinge on one side of the pressing portion. The biasing member is a compression spring, one end of the biasing member is connected to the positioning portion, and the other end of the biasing member abuts against the bottom surface of the hinge.

In one embodiment of the present invention, a cover is screwed to the housing at the joint end, a stopper is formed on the cover and extends inwardly toward the axis. There is one airtight ring, one end of which abuts against the stopper, and the other end of which abuts against the injection molding machine, so that the airtight ring can be directly squeezed by the injection molding machine and elastically deformed to clamp the air nozzle.

In one embodiment of the present invention, the biasing member is integrally formed by extending from the limiting portion toward the hinge, the biasing member can be elastically pivoted relative to the limiting portion to bias the limiting member, and the biasing member is provided with an abutting portion that elastically abuts against the bottom surface of the hinge.

In one embodiment of the present invention, the housing is provided with a first threaded portion at the joint end. The clamping device further includes an outer housing, a first cover, a second cover, and a center tube. The outer periphery of the outer housing is provided with a second threaded portion and a third threaded portion, respectively, and the second threaded portion and the third threaded portion can be selectively screwed to the first threaded portion. The first cover is movably disposed in the outer housing, and the stopper is formed on the first cover and extends inwardly toward the axis. The second cover is movably disposed in the outer housing, and the center tube is movably disposed in the outer housing and is located between the first cover and the second cover. The center tube is provided with a top center portion, and the number of airtight rings is two. The two airtight rings are respectively provided in the first cover and the second cover and elastically abut the center tube. The hinged portion of the lever can link the injection machine to push against the second cover, so that the two airtight rings can be squeezed indirectly by the injection machine and elastically deformed to clamp the gas nozzle.

In some embodiments of the present invention, the hinge part and the first latch part are respectively formed at opposite ends of the lever. The biasing member is a torsion spring, and the biasing member abuts against the limit member and the bottom surface of the hinge respectively. The pump chuck further includes a second hinge passing through the limit member and the biasing member, and the limit member is configured to be able to pivot relative to the hinge with the axis of the second hinge and switch between a latching position and a disengaged position, so that the second latching part of the limit member selectively latches with the first latching part of the lever.

Based on the above, in the air pump clamp provided in the embodiment of the present invention, pressing the limit member with one hand can control the locking relationship between the first locking portion of the lever and the second locking portion of the limit member, so that the airtight ring can be switched between the compression state and the recovery state, so that the airtight ring can clamp or release from the air nozzle.

In order to make the above features and advantages of the present invention more clearly understood, embodiments are specifically cited below and described in detail with reference to the accompanying drawings.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. When the same element symbols appear in different drawings, they will be regarded as the same or similar elements. These embodiments are only part of the present invention and do not disclose all possible implementations of the present invention. More specifically, these embodiments are only examples of the pump chuck within the scope of the patent application of the present invention.

Please refer to Figures 1 to 4 in sequence, which are respectively the appearance schematic diagram, the exploded schematic diagram and the cross-sectional schematic diagram of an embodiment of the air pump chuck of the present invention. The air pump chuck of this embodiment includes a shell 10, a clamping device 20, a lever 30, a limiter 40 and a biasing member 50. The shell 10 has a connecting end 11 and an operating end 12. The shell 10 is provided with a receiving hole 13 extending from the connecting end 11 to the operating end 12 and an air passage 17 connected to the receiving hole 13, and the shell 10 is provided with a stopper 15 at the connecting end 11. The clamping device 20 is movably disposed on the receiving hole 13 and includes a gas-tight ring 21 and an injector 22. The gas-tight ring 21 is disposed between the stopper 15 and the injector 22 and can be directly squeezed by the injector 22 to elastically deform to clamp the gas nozzle (not shown). The lever 30 has a pivoting portion 31 pivoted to the operating end 12, a pulling portion 32 opposite to the pivoting portion 31, and a first latching portion 33. The pivoting portion 31 links the injector 22 to move the injector 22 to squeeze the gas-tight ring 21 to elastic deformation. The stopper 40 has a pressing portion 42 and a second latching portion 43 that can be detachably latched to the first latching portion 33. The biasing member is disposed between the stopper 40 and the housing 10 and can force the stopper 40 to move between the latching position (FIG. 3) and the disengagement position (FIG. 4).

Furthermore, the receiving hole 13 extends from the connecting end 11 to the operating end 12 along an axis A10, and the injection nozzle 22 is pressed against the pivot portion 31 and moves along the axis A10 to press the airtight ring 21, so that the airtight ring 21 is elastically deformed and switches between a compressed state and a restoring state. When the limiter 40 is in the locking position, the second locking portion 43 is locked in the first locking portion 33 of the lever 30, and the airtight ring 21 is in the compressed state and is suitable for clamping the gas nozzle (not shown in the figure). When the limiting member 40 is located at the disengaged position, the second latching portion 43 is disengaged from the first latching portion 33 of the lever 30 , and the airtight ring 21 is in the restored state to push the injector 22 to move relative to the receiving hole 13 along the axis A10 .

The housing 10 of the present embodiment is provided with a hinge 14 connected to the receiving hole 13 at the operating end 12, and the lever 30 is hinged in the hinge 14. The lever 30 is provided with a lever groove 34 facing the pressing portion 42 on one side of the lever portion 32, and the first latch portion 33 is formed between the hinge portion 31 and the lever portion 32. The limiting member 40 has a limiting portion 41 hinged to the hinge 14, and the second latch portion 43 is formed in the limiting portion 41. Thus, the user's finger can be inserted into the lever groove 34 and press the pressing portion 42 of the limiting member 40, so that the limiting member 40 is pivoted relative to the hinge 14, so that the second latch portion 43 of the limiting member 40 is separated from the first latch portion 33 of the lever 30.

In order to enable the limit member 40 to maintain a relative position relative to the hinge 14, the limit member 40 is provided with a positioning portion 44 on one side of the pressing portion 42, and the positioning portion 44 extends toward the hinge 14. One end of the biasing member 50 is connected to the positioning portion 44, and the other end of the biasing member 50 abuts against the bottom surface of the hinge 14, so that the biasing member 50 normally biases the limit member 40. The user must apply a force exceeding the biasing force of the biasing member 50 to enable the limit member 40 to pivot from the latching position to the disengaged position relative to the hinge 14.

The airtight ring 21 of this embodiment has a compression length L21 ( FIG. 3 ) along the axis A10 when in a compressed state, and has a recovery length L21′ ( FIG. 4 ) along the axis A10 when in a recovered state, and the recovery length L21′ is greater than the compression length L21.

In order to enable the injector 22 to press the airtight ring 21 to elastic deformation, the injector 22 is provided with a contact surface 221 on one side adjacent to the operating end 12, and the lever 30 is provided with a first contact top surface 311 and a second contact top surface 312 at the pivot portion 31, and the first contact top surface 311 and the second contact top surface 312 selectively contact the contact surface 221. Furthermore, the first contact top surface 311 and the second contact top surface 312 are adjacent to each other and form an angle greater than 90 degrees. The pump chuck of this embodiment further includes a first pivot 60 passing through the pivot portion 31, and a first distance D1 is provided from the axis of the first pivot 60 to the first abutting surface 311, and a second distance D2 is provided from the axis of the first pivot 60 to the second abutting surface 312, and the second distance D2 is smaller than the first distance D1.

In order to enable the limit member 40 to be pivoted in the hinge 14, the pump chuck of this embodiment further includes a second hinge 70 passing through the limit portion 41. The limit member 40 is configured to be able to pivot relative to the hinge 14 with the axis of the second hinge 70, so that the second latching portion 43 of the limit member 40 is selectively latched in the first latching portion 33 of the lever 30.

The housing 10 of this embodiment has a cover 16 screwed to the connecting end 11 . The stopper 15 is formed on the cover 16 and extends inwardly toward the axis A10 , so that the stopper 15 can abut against the airtight ring 21 .

Please refer to FIG. 3 , the limit member 40 is located at the locking position, the second locking portion 43 of the limit member 40 is locked to the first locking portion 33 of the lever 30, the pivot portion 31 of the lever 30 abuts against the abutting surface 221 with the first abutting surface 311, the injector 22 is abutted by the first abutting surface 311 and moves along the axis A10 and directly squeezes the airtight ring 21, so that the airtight ring 21 is elastically deformed and located in a compressed state, so as to be suitable for clamping the gas nozzle.

Referring to FIG. 4 , the user's finger can be inserted into the pull groove 34 and apply force to press the pressing portion 42 of the limiter 40, the biasing member 50 is compressed and the limiter 40 pivots relative to the pivot groove 14, so that the limiter 40 changes from the locking position to the disengaging position, and the second locking portion 43 of the limiter 40 is disengaged from the first locking portion 33 of the lever 30. At this time, the airtight ring 21 changes from the compressed state to the restored state and pushes the injector 22 to move along the axis A10 relative to the receiving hole 13, and the abutting surface 221 of the injector 22 pushes against the second abutting top surface 312 to pivot the lever 30 relative to the housing 10, so that the airtight ring 21 is separated from the gas nozzle.

Please refer to Figures 5 to 8 in sequence, which are respectively the appearance schematic diagram, the exploded schematic diagram and the cross-sectional schematic diagram of the second embodiment of the air pump chuck of the present invention. The air pump chuck of this embodiment includes a shell 10a, a clamping device 20a, a lever 30a, a limiter 40a and a biasing member 50a. The shell 10a has a connecting end 11a and an operating end 12a. The shell 10a is provided with a receiving hole 13a extending from the connecting end 11a to the operating end 12a and an air passage 17a connected to the receiving hole 13a. The clamping device 20a includes two airtight rings 21a, 21a' and an injection device 22a. The two airtight rings 21, 21a' are disposed between a stopper 241a and the injector 22a, and can be squeezed indirectly by the injector 22a to elastically deform to clamp the gas nozzle (not shown). The lever 30a has a pivoting portion 31a pivoted to the operating end 12a, a pulling portion 32a opposite to the pivoting portion 31a, and a first latching portion 33a. The pivoting portion 31a can link the injector 22a to move the injector 22a relative to the receiving hole 13a to force the two airtight rings 21a, 21a' to elastically deform. The stopper 40a has a pressing portion 42a and a second latching portion 43a that can be detachably latched to the first latching portion 33a. The biasing member 50a is disposed between the stopper 40a and the housing 10a and can bias the stopper 40a so that the stopper 40a can move between a latching position (FIG. 7) and a disengaged position (FIG. 8).

Furthermore, the housing 10a is provided with a hinge 14a connected to the receiving hole 13a at the operating end 12a. The limiting member 40a has a limiting portion 41a pivoted to the hinge 14a, and the second latch portion 43a is formed on the limiting portion 41a. The lever 30a is provided with a lever groove 34a on one side of the lever portion 32a, and the lever groove 34a faces the pressing portion 42a. Thus, the user's finger can be inserted into the lever groove 34a and press the pressing portion 42a of the limiting member 40a, so that the limiting member 40a pivots relative to the hinge 14a, causing the second latch portion 43a of the limiting member 40a to disengage from the first latch portion 33a of the lever 30a.

The volume hole 13a extends from the connecting end 11a to the operating end 12a along an axis A10. The injection nozzle 22a is supported by the pivot portion 31a and moves along the axis A10 to indirectly squeeze the two airtight rings 21a and 21a', forcing the two airtight rings 21a and 21a' to elastically deform and switch between a compressed state and a restoring state. When the stopper 40a is in the locking position, the second locking portion 43a is locked in the first locking portion 33a of the lever 30a, and one of the two airtight rings 21a and 21a' is in the compressed state and is suitable for clamping the gas nozzle. When the limit member 40a is located at the disengaged position, the second latch portion 43a is disengaged from the first latch portion 33a of the lever 30a, and the two airtight rings 21a, 21a' are in the restored state and indirectly push the injector 22a to move along the axis A10 relative to the receiving hole 13a.

Each airtight ring 21a, 21a' has a compression length L21 along the axis A10 in the compressed state (FIG. 3), and each airtight ring 21a, 21a' has a recovery length L21' along the axis A10 in the recovered state (FIG. 4), and the recovery length L21' is greater than the compression length L21.

In order to enable the injector 22a to force the two airtight rings 21a and 21a' to deform elastically, the injector 22a is provided with a contact surface 221a on one side adjacent to the operating end 12a, and the lever 30a is provided with a first contact surface 311a and a second contact surface 312a at the pivot portion 31a, and the first contact surface 311a and the second contact surface 312a selectively contact the contact surface 221a. Further, the first contact surface 311a and the second contact surface 312a are adjacent to each other and form an angle greater than 90 degrees. The pump chuck of this embodiment further includes a first pivot 60a passing through the pivot portion 31a, and a first distance D1 is provided from the axis of the first pivot 60a to the first abutting surface 311a, and a second distance D2 is provided from the axis of the first pivot 60a to the second abutting surface 312a, and the second distance D2 is smaller than the first distance D1.

In order to enable the limit member 40a to pivot in the hinge 14a, the pump chuck of this embodiment further includes a second hinge 70a passing through the limit portion 41a. The limit member 40a is configured to be able to pivot relative to the hinge 14a with the axis of the second hinge 70a, so that the second latching portion 43a of the limit member 40a can selectively latch on the first latching portion 33a of the lever 30a.

The biasing member 50a of the present embodiment is integrally formed by extending the limiting portion 41a toward the hinge 14a. The biasing member 50a can be elastically pivoted relative to the limiting portion 41a to bias the limiting member 40a, and the biasing member 50a is provided with an abutting portion 51a that elastically abuts against the bottom surface of the hinge 14, so that the biasing member 50a normally biases the limiting member 40a. The user must apply a force exceeding the biasing force of the biasing member 50a to enable the limiting member 40a to pivot relative to the hinge 14a from the latching position to the disengaged position.

In this embodiment, the housing 10a is provided with a first threaded portion 111a at the connecting end 11a. The clamping device 20a further includes an outer housing 23a, a first cover 24a, a second cover 25a and a center tube 26a. The outer periphery of the outer housing 23a is provided with a second threaded portion 231a and a third threaded portion 232a, respectively. The second threaded portion 231a and the third threaded portion 232a can be selectively threadedly connected to the first threaded portion 111a, so that the two airtight rings 21a and 21a' can select one of them to clamp the gas nozzle. The first cover 24a is movably disposed in the outer shell 23a, and the stopper 241a of this embodiment is formed on the first cover 24a and extends inward toward the axis A10. The second cover 25a is movably disposed in the outer shell 23a, and the center tube 26a is movably disposed in the outer shell 23a and is located between the first cover 24a and the second cover 25a. The center tube 26a is provided with a top center portion 261a for abutting against the air nozzle. The two airtight rings 21a, 21a' are respectively disposed in the first cover member 24a and the second cover member 25a and elastically abut against the center tube 26a. The pivoting portion 31a of the lever 30a can link the injection molding machine 22a to push against the second cover member 25a, so that the two airtight rings 21a, 21a' can be indirectly squeezed by the injection molding machine 22a and elastically deformed to clamp the gas nozzle.

Please refer to FIG. 7 , the limit member 40a is located at the locking position, the second locking portion 43a of the limit member 40a is locked to the first locking portion 33a of the lever 30a, the pivot portion 31a of the lever 30a is pressed against the abutting surface 221a with the first abutting surface 311a, the injector 22a is pressed against the first abutting surface 311a and moves along the axis A10 to push against the second cover member 25a, so that the second cover member 25a pushes against the center tube 26a and the two airtight rings 21a, 21a', forcing the airtight ring 21a to be elastically deformed and in a compressed state so as to be suitable for clamping the gas nozzle.

Please refer to Figure 8. The user's finger can be inserted into the lever groove 34a and apply force to press the pressing portion 42a of the limit member 40a. The biasing member 50a elastically pivots relative to the limit portion 41a to bias the limit member 40a, causing the limit member 40a to change from the locking position to the disengaged position, and the second locking portion 43a of the limit member 40a is disengaged from the first locking portion 33a of the lever 30a. At this time, the two air-tight rings 21a, 21a' change from the compressed state to the restored state and push the injector 22a to move relatively along the axis A10 relative to the volume hole 13a. The abutting surface 221a of the injector 22a pushes against the second abutting top surface 312a to make the lever 30a pivot relative to the shell 10a, so that the air nozzle clamped by the air-tight ring 21a can be separated from the air-tight ring 21a.

Please refer to Figures 9 to 12, which are respectively the external view, exploded view and cross-sectional view of the third embodiment of the air pump chuck of the present invention. The air pump chuck of this embodiment is substantially the same as the first embodiment, except that the hinge portion 31b and the first latch portion 33b are respectively formed at the opposite ends of the lever 30b, and the first latch portion 33b is particularly formed at one end of the lever 30b. The biasing member 50b is a torsion spring and abuts against the limit member 40b and the bottom surface of the hinge groove 14b, respectively. The second pivot 70b penetrates the limit portion 41b and the biasing member 50b, and the limit member 40b is configured to be able to pivot with the axis of the second pivot 70b relative to the pivot groove 14b and switch between the locking position and the disengagement position, so that the second locking portion 43b of the limit member 40b is selectively locked to the first locking portion 33b of the lever 30b. In addition, the injection device 22b of this embodiment is further provided with a plurality of clamping claws 222b, which can clamp the gas nozzle together with the airtight ring 21b.

Please refer to Fig. 13, which is a cross-sectional schematic diagram of the fourth embodiment of the air pump chuck of the present invention. The air pump chuck of this embodiment is substantially the same as the second and fourth embodiments, wherein the clamping device 20c of this embodiment is the same as the second embodiment, and the lever 30c, the stopper 40c, the offset member 50c and the second pivot 70c are the same as the fourth embodiment.

Please refer to Fig. 14, which is a cross-sectional schematic diagram of the fifth embodiment of the air pump chuck of the present invention. The air pump chuck of this embodiment is substantially the same as the fourth embodiment, wherein the lever 30d, the stopper 40d, the biasing member 50d and the second pivot 70d are the same as the fourth embodiment, and the difference is that the clamping device 20d of this embodiment includes two airtight rings 21d and 21d', and the two airtight rings 21d and 21d' correspond to a first connecting hole 223d and a second connecting hole 224d of the injection nozzle 22d, respectively, and the first connecting hole 223d and the second connecting hole 224d can be connected to different types of air nozzles, and the air nozzles are clamped by the two airtight rings 21d and 21d'.

In summary, the above embodiments of the present invention can control the first latching portion 33, 33a, 33b of the lever 30, 30a, 30b, 30c, 30d and the second latching portion 43, 43a, 43b of the limiter 40, 40a, 40b, 40c, 40d by pressing the limiter 40, 40a, 40b, 40c, 40d with one hand, so that the airtight ring 21, 21a, 21a', 21b, 21d, 21d' can be switched between the compressed state and the restored state, so as to clamp or release the air nozzle.

Although the present invention has been disclosed as above by the embodiments, they are not intended to limit the present invention. Any person with ordinary knowledge in the relevant technical field can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be defined by the scope of the attached patent application.

10: Shell A10: Axis 11: Anchor end 12: Operating end 13: Receptacle 14: Angle groove 15: Stopper 16: Cover 17: Air channel 20: Clamping device 21: Airtight ring L21: Compression length L21’: Recovery length 22: Injector 221: Abutment surface 30: Lever 31: Angle joint 311: First abutment surface 312: Second abutment surface 32: Pulling part 33: First latching part 34: Pulling groove 40: Limiting member 41: Limiting part 42: Pressing part 43: Second latching part 44: Positioning portion 50: Biasing member 60: First pivot 70: Second pivot D1: First distance D2: Second distance 10a: Housing 11a: Anchor end 111a: First threaded portion 12a: Operating end 13a: Receptacle 14a: Pivot groove 17a: Air passage 20a: Clamping device 21a, 21a': Airtight ring 22a: Injector 221a: Abutment surface 23a: Housing 231a: Second threaded portion 232a: Third threaded portion 24a: First cover 241a: Stopper 25a: Second cover 26a: center tube 261a: top center 30a: lever 31a: pivot part 311a: first abutting surface 312a: second abutting surface 32a: lever part 33a: first latch part 34a: lever groove 40a: limiter 41a: limiter part 42a: pressing part 43a: second latch part 50a: offset part 51a: abutting part 60a: first pivot axis 70a: second pivot axis 14b: pivot groove 21b: airtight ring 22b: injection device 222b: clamping claw 30b: lever 31b: pivot part 33b: first latching part 40b: stopper 41b: stopper 43b: second latching part 50b: offset member 70b: second pivot 20c: clamping device 30c: lever 40c: stopper 50c: offset member 70c: second pivot 20d: clamping device 21d, 21d’: airtight ring 22d: injection molding machine 223d: first connecting hole 224d: second connecting hole 30d: lever 40d: stopper 50d: offset member 70d: second pivot

FIG. 1 is a schematic diagram of the three-dimensional appearance of the first embodiment of the air pump chuck of the present invention. FIG. 2 is a schematic diagram of the exploded view of the air pump chuck shown in FIG. 1. FIG. 3 is a schematic diagram of the cross section of the air pump chuck shown in FIG. 1, showing that the airtight ring is in a tightened state. FIG. 4 is a continuation of FIG. 3, showing that the airtight ring is in a restored state. FIG. 5 is a schematic diagram of the three-dimensional appearance of the second embodiment of the air pump chuck of the present invention. FIG. 6 is a schematic diagram of the exploded view of the air pump chuck shown in FIG. 5. FIG. 7 is a schematic diagram of the cross section of the air pump chuck shown in FIG. 5, showing that the airtight ring is in a tightened state. FIG. 8 is a continuation of FIG. 7, showing that the airtight ring is in a restored state. FIG. 9 is a schematic diagram of the three-dimensional appearance of the third embodiment of the air pump chuck of the present invention. FIG. 10 is a schematic diagram of the exploded view of the air pump chuck shown in FIG. 9. FIG. 11 is a schematic diagram of a cross section of the air pump chuck shown in FIG. 9, showing that the airtight ring is in a tightened state. FIG. 12 is a continuation of FIG. 11, showing that the airtight ring is in a restored state. FIG. 13 is a schematic diagram of a cross section of the fourth embodiment of the air pump chuck of the present invention. FIG. 14 is a schematic diagram of a cross section of the fifth embodiment of the air pump chuck of the present invention.

10: Shell

A10: Axis

11: Connector terminal

12: Operation terminal

13: Volume

14: hinge

15: Stopper

16: Cover

17: Air channel

20: Clamping device

21: Airtight ring

L21:Compressed length

22: Injection machine

221: Butt surface

30: Lever

31: Joint

311: The first top surface

312: The second top surface

32: Switching part

33: First latch part

34: Trigger slot

40: Limiting parts

41: Limiting part

42: Pressing part

43: Second latch part

44: Positioning unit

50: Biasing piece

60: First axis

70: Second axis

D1: First distance

D2: Second distance

Claims (13)

A pump clamp comprises: A shell having a connecting end and an operating end, the shell being provided with a receiving hole extending from the connecting end to the operating end and an air passage connected to the receiving hole; A stopper disposed at the connecting end; A clamping device comprising at least one airtight ring and an injector movably disposed at the receiving hole, the at least one airtight ring being disposed between the stopper and the injector and being able to be directly or indirectly squeezed by the injector to be elastically deformed to clamp the air nozzle; A lever having a pivoting portion pivotally connected to the operating end, a levering portion opposite to the pivoting portion, and a first latching portion, the pivoting portion being capable of linking the injector to move the injector relative to the receiving hole and forcing the at least one airtight ring to deform elastically; A stopper having a pressing portion and a second latching portion detachably latched to the first latching portion; and A biasing member disposed between the stopper and the housing and biasing the stopper. As described in claim 1, the housing is provided with a hinge connected to the receiving hole at the operating end, the lever is pivoted in the hinge, the limiting member has a limiting portion pivotally connected to the hinge, and the second latch portion is formed on the limiting portion. As described in claim 2, the first latch portion is formed between the pivot portion and the pull portion, and the lever is provided with a pull groove facing the pressing portion on one side of the pull portion. The air pump chuck as described in claim 2, wherein the receiving hole extends along an axis from the connecting end to the operating end, and the injector is pressed against by the pivot portion and moves along the axis to directly or indirectly squeeze the at least one airtight ring, forcing the at least one airtight ring to elastically deform and switch between a compressed state and a restored state; when the second latching portion of the limit member is latched on the first latching portion of the lever, the at least one airtight ring is located The at least one airtight ring is in a compressed state and is suitable for clamping the gas nozzle, and the at least one airtight ring has a compressed length along the axis in the compressed state; when the second latch portion of the limit member is separated from the first latch portion of the lever, the at least one airtight ring is in a recovery state and directly or indirectly pushes the injector to move relative to the receiving hole along the axis, and the at least one airtight ring has a recovery length along the axis that is greater than the compressed length in the recovery state. As described in claim 2, the air pump chuck has an abutment surface on one side of the injector adjacent to the operating end, the lever has a first abutment surface and a second abutment surface on the pivot portion, and the first abutment surface and the second abutment surface selectively abut against the abutment surface as the lever pivots relative to the pivot groove. A pump clamp as described in claim 5, wherein the first abutting surface is adjacent to the second abutting surface and forms an angle greater than 90 degrees. The air pump chuck as described in claim 5 further includes a first pivot passing through the pivot portion, wherein there is a first distance from the axis of the first pivot to the first abutment surface, and there is a second distance from the axis of the first pivot to the second abutment surface, and the second distance is smaller than the first distance. The air pump chuck as described in claim 2 further includes a second pivot passing through the limit portion, and the limit member is configured to be able to switch between a latching position and a disengaged position with the axis of the second pivot pivoting relative to the pivot groove, so that the second latching portion of the limit member is selectively latched to the first latching portion of the lever. As described in claim 2, the limit member is provided with a positioning portion extending toward the hinge on one side of the pressing portion, the biasing member is a compression spring, one end of the biasing member is connected to the positioning portion, and the other end of the biasing member abuts against the bottom surface of the hinge. A pump clamp as described in claim 4, wherein the shell is threaded with a cover at the connecting end, the stop portion is formed on the cover and extends inwardly toward the axis, the at least one airtight ring is provided in one piece, one end of the airtight ring abuts against the stop portion, and the other end of the airtight ring abuts against the injector, so that the airtight ring can be directly squeezed by the injector and elastically deformed to clamp the air nozzle. As described in claim 4, the biasing member is integrally formed by extending from the limiting portion toward the hinge, the biasing member can elastically pivot relative to the limiting portion to bias the limiting member, and the biasing member is provided with an abutment portion that elastically abuts against the bottom surface of the hinge. A pump chuck as described in claim 11, wherein the shell is provided with a first threaded portion at the connecting end, the clamping device further comprises an outer shell, a first cover, a second cover and a center tube, the outer periphery of the outer shell is provided with a second threaded portion and a third threaded portion respectively, the second threaded portion and the third threaded portion can be selectively threadedly connected to the first threaded portion, the first cover is movably disposed in the outer shell, and the stop portion is formed on the first cover and extends inwardly toward the axis, the third threaded portion is provided with a second threaded portion and a third threaded portion respectively, the second threaded portion and the third threaded portion can be selectively threadedly connected to the first threaded portion, the first cover is movably disposed in the outer shell, and the stop portion is formed on the first cover and extends inwardly toward the axis, The two cover pieces are movably arranged in the outer shell, the center tube is movably arranged in the outer shell and is located between the first cover piece and the second cover piece, the center tube is provided with a top center portion, the number of the at least one airtight ring is two, the two airtight rings are respectively arranged in the first cover piece and the second cover piece and elastically abut against the center tube, the pivot part of the lever can link the injection machine to push against the second cover piece, so that the two airtight rings can be indirectly squeezed by the injection machine and elastically deformed to clamp the gas nozzle. A pump chuck as described in claim 2, wherein the pivot portion and the first latch portion are respectively formed at opposite ends of the lever, the biasing member is a torsion spring, and the biasing member abuts against the limit member and the bottom surface of the pivot groove, respectively. The pump chuck further includes a second pivot axis passing through the limit member and the biasing member, and the limit member is configured to be able to pivot relative to the pivot groove with the axis of the second pivot axis and switch between a latch position and a disengaged position, so that the second latch portion of the limit member is selectively latched to the first latch portion of the lever.

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