JP3248128U - Grip Jack Manual Tool - Google Patents

Abstract

To provide a hand-held jack tool that has a simple structure and is easily operated to lift a workpiece and then fine-tune its height or slowly lower it.
[Solution] A jack hand tool 10 includes a tool body 20, a height support shaft 30, at least one stepping clamping piece 40, a handle 43, and a gradual lowering device 50. A rack frame 22 is provided at the upper end of a holder 21 of the tool body. A first chamber 221 and a second chamber 222 are formed at a distance from each other in the internal space of the rack frame via a spacing portion 220. An abutting member 23 is fixed to the front end of the rack frame at the front edge of the first chamber. The height of the upper edge of the abutting member is higher than the outer surface of the upper end of the rack frame. The gradual lowering device includes a swing base 51, at least one clamping shaft piece 52, a second spring 53, at least one position restraining clamping plate 54, a third spring 55, and an eccentric push member 56.
[Selected figure] Figure 2

Description

This invention relates to a handheld jack tool that has a simple structure and is easy to operate, allowing you to lift a workpiece and then fine-tune its height or slowly lower it.

Conventionally, manual clamping tools used in on-site construction processes (e.g., Patent Document 1) clamp the workpiece by pressing a presser lever and operating a movable clamp and a fixed clamp. However, when manually pushing the workpiece apart and lifting or pushing it up, it was necessary to use a manual jack tool that performs the opposite operation to the clamping tool described above.

In conventional manual jack tools (e.g., Patent Document 2), when the handle is pressed, the first support piece and the second support piece separate from each other, allowing the workpiece to be lifted or pushed up. However, when lowering the workpiece after lifting or pushing it up, a complex structure or mechanism is required to prevent the workpiece from momentarily lowering, which could cause an impact (danger), or the height of the workpiece is finely adjusted to lower it. The above-mentioned conventional manual jack tool structure has room for improvement, because simplifying the structure would make it easier to operate and to maintain the parts.

In light of this current situation, the inventor has used his many years of experience and knowledge in manufacturing and design in related fields to come up with various innovative ideas to complete this invention.

In light of this current situation, the inventors conducted extensive research, improvements and prototyping, and have now completed this invention.

Taiwan Utility Model Publication No. M284485 Taiwan Utility Model Publication No. M631679

The main purpose of this invention is to provide a handheld jack tool that has a simple structure and is easy to operate to lift a workpiece and then fine-tune its height or slowly lower it.

In order to solve the above problem, according to a first embodiment of the present invention, there is provided a grip-type manual jack tool, including a manual jack tool, the manual jack tool comprising a tool body, a height support shaft, at least one stepping clamping piece, a handle, and a slow-down device, a rack frame is provided at the upper end of the holder of the tool body, a first chamber and a second chamber are formed at a distance from each other in the internal space of the rack frame via a spacing portion, an abutment member is fixed to the front end of the rack frame at the front edge of the first chamber, the height of the upper edge of the abutment member is higher than the outer surface of the upper end of the rack frame, a through shaft hole is formed inside the rack frame connecting the first chamber and the second chamber, a stopper portion is provided at the upper edge of the second chamber of the rack frame, the height support shaft is inserted into the through shaft hole and passes through the first chamber and the second chamber, the shaft body moves axially through the through shaft hole, and a support member is attached to one end of the shaft body of the height support shaft. The stepping clamping piece is fixed in the first chamber, and the support member moves the shaft of the height support shaft in the axial direction to move it closer to or away from the abutment member, and the plate piece has a fitting shaft hole that corresponds to the cross-sectional shape of the shaft of the height support shaft and into which the shaft of the height support shaft is fitted, and a first spring is fitted onto the shaft of the height support shaft on one surface of the plate piece to press the other surface of the plate piece and make it abut on the gap, and the stepping clamping piece is The handle is not normally clamped to the shaft of the height support shaft, and is pivotally mounted on the lower edge of the first chamber of the rack frame, and is located outside the rack frame. The handle has an operating part that is located at an angle relative to the holder, and a push end that extends into the first chamber and contacts the other surface of the plate piece of the stepping clamp piece. The slow-descent device includes a swing base, at least one clamp piece, a second spring, and at least one position-constraining clamp plate. The swing base is attached in the second chamber and has a frame seat body, and a hole is formed on the frame surface of the frame seat body to insert the shaft body of the height support shaft, and a storage piece tank and a storage tank are formed at intervals through a separation frame with a hole formed therein, and a pivot part is provided at the lower end of the storage tank, and the clamping shaft piece is attached in the storage piece tank of the swing base, and the plate piece corresponds to the cross-sectional shape of the shaft body of the height support shaft. The second spring is fitted onto the shaft body of the height support shaft, has one end supported by the spacing portion, and has the other end pressed against the frame surface of the frame seat body of the swing base, and has an upper end of the pinch shaft piece restrained in position by the stopper portion, and the pinch shaft piece is substantially inclined, clamping the shaft body of the height support shaft by the pinch shaft hole, and the height support shaft is normally in a forward position. the position restraining clamping plate is attached to the storage tank of the swing base, a plate body corresponds to the cross-sectional shape of the shaft of the height support shaft, has a screw-fitting shaft hole fitted onto the shaft of the height support shaft, and has an extended lower end to form a push-back stopper portion; the third spring is located in the storage tank of the swing base, fitted onto the shaft of the height support shaft, and presses the plate body of the position restraining clamping plate against the surface of the spacing frame to bring it into close contact; the position restraining clamping plate is approximately inclined, clamps the shaft of the height support shaft in one direction through the screw shaft hole, and prevents the position restraint clamping plate from sliding in the opposite direction to the support member in a normal state; the eccentric push member has a rotating body pivoted on the pivot part of the swing base, and the rotating body has an eccentric part at one end that abuts on the push-back stopper part of the position restraint clamping plate, and the other end protrudes from the second chamber and has a pushing part.

The abutment member of the tool body is screwed to the steel plate piece at the front end of the rack frame, a through hole corresponding to the through shaft hole is formed, and the support member is fixed to one end of the shaft body of the height support shaft, and the support member preferably has an area larger than that of the steel plate piece of the abutment member and a notch groove formed to correspond to the shape of the abutment member.

It is preferable that a pivot base is provided on the lower edge peripheral frame of the first chamber of the rack frame, a rod receiving hole is formed on the pivot base, which penetrates from the inside to the outside of the first chamber, and the push end of the handle is inserted into the first chamber through the rod receiving hole and is pivotally attached to the pivot base.

It is preferable that an upper recessed tank is formed on the upper edge peripheral frame of the second chamber of the rack frame, and one side of the upper recessed tank constitutes the stopper portion.

It is preferable that a pushing and rocking part is provided on the lower edge of the frame seat of the swing base in correspondence with the contact position between the holder and the rack frame, the pivot part is provided on the lower edge peripheral frame of the second chamber of the rack frame, a storage tank communicating with the second chamber is recessed in one side of the holder, an unlocking trigger pivotally mounted on the pivot part is attached in the storage tank, and the working end of the unlocking trigger is inserted into the second chamber and located close to the pushing and rocking part of the swing base.

It is preferable that covers are provided on both side surfaces of the rack frame, and the covers close the first chamber and the second chamber to protect the components in the first chamber and the second chamber, prevent external forces or objects from entering the first chamber and the second chamber, and maintain the component mechanism in a normal state.

The handheld jack tool of this invention has a simple structure and can be easily operated to lift a workpiece and then fine-tune its height or slowly lower it.

FIG. 1 is an assembled perspective view showing a handheld jack hand tool according to one embodiment of the present invention. FIG. FIG. 2 is an exploded perspective view of a handheld jack tool according to one embodiment of the present invention. FIG. 3 is a cross-sectional view showing the internal structure of a tool body and a swing base of a handheld handheld jack according to an embodiment of the present invention. FIG. 4 is an explanatory diagram showing an operation in which the contact member of the handheld jack tool according to the embodiment of the present invention quickly separates from the support member. FIG. 5 is an explanatory diagram of a state in which the handle of the handheld jack hand tool according to the embodiment of the present invention is pulled. FIG. 6 is an explanatory diagram of a state in which the handle swing member of the grip-type jack manual tool according to the embodiment of the present invention is lifted up by the abutment member. FIG. 7 is an explanatory diagram of a state in which the handheld jack manual tool according to the embodiment of the present invention has lifted the workpiece to a target height. FIG. 8 is an explanatory diagram of a state in which a pushing portion of an eccentric push member of a handheld jack tool according to one embodiment of the present invention is pushed down. FIG. 9 is an explanatory diagram of a state in which the workpiece is gradually lowered to a lower height after the pushing portion of the eccentric push member of the grip-type jack manual tool according to the embodiment of the present invention is pushed down. FIG. 10 is an explanatory diagram of a state in which an unlocking trigger of the handheld jack manual tool according to one embodiment of the present invention is operated.

In order to more completely and clearly disclose the technical means of the present invention and the effects that can be achieved thereby, the present invention will be described in detail below in conjunction with the accompanying drawings and symbols disclosed.

Please refer to Figures 1 to 3. A hand-held jack tool according to one embodiment of the present invention includes a hand jack tool 10. The hand jack tool 10 includes a tool body 20, a height support shaft 30, at least one stepping clamp piece 40, a handle 43, and a slow-down device 50.

A rack frame 22 is provided at the upper end of the holder 21 of the tool body 20. A first chamber 221 and a second chamber 222 are formed in the internal space of the rack frame 22 with a gap therebetween via a gap portion 220. An abutment member 23 is fixed to the front end of the rack frame 22 at the front edge of the first chamber 221. The height of the upper edge of the abutment member 23 is higher than the outer surface of the upper end of the rack frame 22. A through shaft hole 223 is formed inside the rack frame 22, connecting the first chamber 221 and the second chamber 222. A stopper portion 224 is provided at the upper edge of the second chamber 222 of the rack frame 22.

The height support shaft 30 is inserted into the through shaft hole 223 and passes through the first chamber 221 and the second chamber 222, and the shaft moves axially in the through shaft hole 223. A support member 31 is fixed to one end of the shaft of the height support shaft 30, and the shaft of the height support shaft 30 is moved axially by the support member 31, moving it closer to or farther away from the abutment member 23.

A stepping clamp piece 40 (preferably three stepping clamp pieces 40 arranged in parallel) is attached to the first chamber 221, and the plate piece has a fitting shaft hole 41 that corresponds to the cross-sectional shape of the shaft of the height support shaft 30 and into which the shaft of the height support shaft 30 is fitted, and a first spring 42 is fitted onto the shaft of the height support shaft 30 on one surface of the plate piece to press the other surface of the plate piece against the gap 220, and the stepping clamp piece 40 is not clamped to the shaft of the height support shaft 30 in the normal state.

The handle 43 is pivotally attached to the lower edge of the first chamber 221 of the rack frame 22, is located outside the rack frame 22, and has an operating part 430 at an included angle α with respect to the holder 21, and a push end 431 that extends into the first chamber 221 and contacts the other surface of the plate piece of the stepping clamping piece 40.

The slow-descent device 50 has a swing base 51, at least one clamping shaft piece 52, a second spring 53, at least one position restraining clamping plate 54, a third spring 55, and an eccentric push member 56.

The swing base 51 is attached in the second chamber 222 and has a frame base 510. A bore 512 is formed on the frame surface 511 of the frame base 510, through which the shaft of the height support shaft 30 is inserted. Inside the frame base 510, a storage piece tank 514 and a storage tank 515 are formed at a distance from each other via a spacing frame 513 in which the bore 512 is formed. A pivot attachment part 516 is provided at the lower end of the storage tank 515.

The clamping shaft pieces 52 (preferably three clamping shaft pieces 52 arranged in parallel) are attached to the storage piece tank 514 of the swing base 51, and the plate piece has a clamping shaft hole 520 that corresponds to the cross-sectional shape of the shaft body of the height support shaft 30 and is fitted into the shaft body of the height support shaft 30, and the upper end extends to the position of the stopper portion 224, and is restrained or locked in position by the stopper portion 224.

The second spring 53 is fitted onto the shaft body of the height support shaft 30, one end of which is supported by the spacing portion 220, and the other end of which is pressed onto the frame surface 511 of the frame seat body 510 of the swing base 51, and the upper end of the pinch shaft piece 52 is restrained in position by the stopper portion 224, so that the pinch shaft piece 52 is approximately tilted and the shaft body of the height support shaft 30 is clamped by the pinch shaft hole 520, preventing the height support shaft 30 from moving in the opposite direction to the abutment member 23 in the normal state.

The position restraint clamping plate 54 is attached to the storage tank 515 of the swing base 51, the plate body corresponds to the cross-sectional shape of the shaft of the height support shaft 30, has a screw-fitting shaft hole 540 that fits onto the shaft of the height support shaft 30, and the lower end extends to form a push-back stopper portion 541.

The third spring 55 is located in the storage tank 515 of the swing base 51 and is fitted onto the shaft body of the height support shaft 30, pressing the plate body of the position restraint clamping plate 54 against the surface of the separation frame 513 to make it adhere closely, causing the position restraint clamping plate 54 to tilt approximately and clamp the shaft body of the height support shaft 30 in one direction via the screw-mounted shaft hole 540, preventing the position restraint clamping plate 54 from sliding in the opposite direction to the support member 31 in the normal state.

The eccentric push member 56 has a rotating body 560 pivotally mounted on the pivot portion 516 of the swing base 51. The rotating body 560 has an eccentric portion 561 at one end that abuts on the push-back stopper portion 541 of the position restraining clamping plate 54, and the other end protrudes from the second chamber 222 and has a pushing portion 562.

Refer to FIG. 4. As shown in FIG. 4, when the workpiece 60 is pushed up by the jack hand tool 10, the support member 31 and the abutment member 23 are deployed (separated from each other), and while the pinch piece 52 and the position restraint pinch plate 54 are not clamping the shaft body of the height support shaft 30, the tool body 20 is moved directly upward along the shaft body of the height support shaft 30 while the support member 31 is in close contact with the support surface 70, and the abutment member 23 can be quickly adjusted to approach the workpiece 60. Refer to FIG. 5 to FIG. 7. As shown in FIG. 5 to FIG. 7, when the holder 21 and the operating part 430 of the handle 43 are grasped and the handle 43 is swung back and forth, the push end 431 of the handle 43 presses the stepping pinch piece 40 to be approximately inclined, and the tool body 20 is pressed and moved upward by the shaft body of the height support shaft 30 due to the anti-slip effect generated by clamping the shaft body of the height support shaft 30, and the abutment member 23 can gradually push the workpiece 60 up to the target height H1. When the workpiece 60 is lowered from the target height H1, as shown in FIG. 8, the rotating body 560 rotates by simply pressing down the pushing portion 562 of the eccentric push member 56, and when the eccentric portion 561 is abutted against the push-back stopper portion 541 of the position restraining clamping plate 54 and pushed back, the swing base 51 approximately swings, and the clamping of the pinch piece 52 to the shaft body of the height support shaft 30 can be released. See FIG. 9. As shown in FIG. 9, when the tool body 20 is lowered (naturally lowered) by the weight of the workpiece 60 at a distance of the gradual lowering height H2, the pinch piece 52 automatically recovers the clamping to the shaft body of the height support shaft 30. At the same time, the pushing portion 562 of the eccentric push member 56 recovers to the position before being pressed down. That is, when the operation of pressing down the pushing portion 562 of the eccentric push member 56 is repeatedly performed, the workpiece 60 can be gradually lowered by the gradual lowering height H2 when pressed down once. See FIG. 7. As shown in FIG. 7, the overall structure of the jack hand tool 10 is used to lift or push up the workpiece 60. Please refer to FIG. 8 and FIG. 9. As shown in FIG. 8 and FIG. 9, when the workpiece 60 descends, excessive shock is prevented from occurring, and when fine-tuning the height, the workpiece 60 can be lowered slowly by the simple structure and easy operation of the slow-lowering device 50.

In the above-mentioned embodiment, preferably, as shown in Figs. 1 to 3, the abutment member 23 of the tool body 20 is screwed to the steel plate piece at the front end of the rack frame 22 to form a through hole 230 corresponding to the through shaft hole 223. A support member 31 is fixed to one end of the shaft body of the height support shaft 30, and the support member 31 has a notch groove 310 that is larger in area than the steel plate piece of the abutment member 23 and is formed to correspond to the shape of the abutment member 23. See Fig. 10. As shown in Fig. 10, the shaft body of the height support shaft 30 moves within the through shaft hole 223 toward the rack frame 22, and the support member 31 moves toward the abutment member 23 so that they approach each other. As shown in Fig. 1, the notch groove 310 of the support member 31 corresponds to the shape of the abutment member, and when the deployment is in the initial position, the surface of the abutment member 23 and the surface of the support member 31 are flat.

In the above-mentioned embodiment, preferably, as shown in FIG. 2 and FIG. 3, a pivot base 225 is provided on the lower edge peripheral frame of the first chamber 221 of the rack frame 22. A rod receiving hole 226 is formed on the pivot base 225, penetrating from the inside to the outside of the first chamber 221. The push end 431 of the handle 43 is inserted into the first chamber 221 through the rod receiving hole 226 and is pivotally attached to the pivot base 225. See FIG. 7. As shown in FIG. 7, by controlling the swing angle β between the operating part 430 of the handle 43 and the holder 21 through the rod receiving hole 226, the handle 43 can be operated by swinging back and forth within the range of the appropriate swing angle β.

In the above-described embodiment, preferably, as shown in Figs. 2 and 3, an upper recessed groove 227 is formed on the upper peripheral frame of the second chamber 222 of the rack frame 22, and one side of the upper recessed groove 227 constitutes the stopper portion 224. The upper end of the pinch piece 52 is housed in the upper recessed groove 227, and the upper end of the pinch piece 52 is easily restrained in position by the stopper portion 224.

In the above-described embodiment, preferably, as shown in Figures 2 and 3, a pushing and rocking portion 517 is provided on the lower edge of the frame seat body 510 of the swing base 51, corresponding to the abutment position between the holder 21 and the rack frame 22. A pivoting portion 228 is provided on the lower edge peripheral frame of the second chamber 222 of the rack frame 22. A storage tank 210 communicating with the second chamber 222 is recessed in one side of the holder 21. An unlocking trigger 24 pivotally mounted on the pivoting portion 228 is attached in the storage tank 210. The working end 240 of the unlocking trigger 24 is inserted into the second chamber 222 and is located close to the pushing and rocking portion 517 of the swing base 51. See Figure 10. As shown in FIG. 10, when the abutment member 23 and the support member 31 are deployed or separated by a predetermined distance, the unlocking trigger 24 is swung toward the holder 21 in the storage tank 210, and the working end 240 of the unlocking trigger 24 pushes the pushing and rocking portion 517 of the swing base 51. At the same time, the clamping shaft piece 52 and the position restraining clamping plate 54 release the clamping of the shaft body of the height support shaft 30. When the abutment member 23 is operated to approach the support member 31, the jack manual tool 10 can be quickly restored to its initial use state as shown in FIG. 1.

In the above-described embodiment, preferably, as shown in Figures 1 and 2, covers 25 are provided on both side surfaces of the rack frame 22, and the above-described covers 25 close the first chamber 221 and the second chamber 222 to protect the components in the first chamber 221 and the second chamber 222, prevent external forces or objects from entering the first chamber 221 and the second chamber 222, and maintain the component mechanism in a normal state.

The preferred embodiments of the present invention have been disclosed above so that those skilled in the art can understand the present invention, but these are in no way intended to limit the present invention. Various changes and modifications can be made without departing from the spirit and scope of the present invention. Therefore, the scope of the utility model registration claims of the present invention should be broadly interpreted to include such changes and modifications.

10 jack hand tool 20 tool body 21 holder 22 rack frame 23 abutment member 24 unlock trigger 25 cover 30 height support shaft 31 support member 40 stepping clamp piece 41 fitting shaft hole 42 first spring 43 handle 50 slow descent device 51 swing base 52 clamp shaft piece 53 second spring 54 position restraint clamp plate 55 third spring 56 eccentric push member 60 work 70 support surface 210 storage tank 220 spacing portion 221 first chamber 222 second chamber 223 through shaft hole 224 stopper portion 225 pivot base 226 storage rod hole 227 upper recessed groove 228 pivot portion 230 through hole 240 action end 310 notch groove 430 operation portion 431 push end 510 frame seat body 511 Frame surface 512 Perforation 513 Separation frame 514 Storage tank 515 Storage tank 516 Pivot part 517 Pushing and swinging part 520 Pincer hole 540 Screwing shaft hole 541 Push-back stopper part 560 Rotating body 561 Eccentric part 562 Pushing part H1 Target height H2 Gradual descent height α Enclosing angle β Swinging angle

Claims (6)

A grip-type hand jack tool, including a hand jack tool, comprising:
The jack manual tool includes a tool body, a height support shaft, at least one stepping clamp piece, a handle, and a slow-down device.
A rack frame is provided at the upper end of the holder of the tool body, and a first chamber and a second chamber are formed in the internal space of the rack frame with a gap therebetween. An abutting member is fixed to the front end of the rack frame at the front edge of the first chamber, and the height of the upper edge of the abutting member is higher than the outer surface of the upper end of the rack frame. A through shaft hole communicating the first chamber and the second chamber is formed inside the rack frame, and a stopper portion is provided at the upper edge of the second chamber of the rack frame.
The height support shaft is inserted into the through shaft hole and passes through the first chamber and the second chamber, and the shaft body moves in the axial direction in the through shaft hole. A support member is fixed to one end of the shaft body of the height support shaft, and the shaft body of the height support shaft is moved in the axial direction by the support member, so as to approach or move away from the abutment member.
The stepping clamp piece is attached to the first chamber, the plate piece has a fitting shaft hole corresponding to the cross-sectional shape of the shaft of the height support shaft and into which the shaft of the height support shaft is fitted, and a first spring is fitted onto the shaft of the height support shaft on one surface of the plate piece to press the other surface of the plate piece and make it abut on the gap, and the stepping clamp piece is not clamped to the shaft of the height support shaft in a normal state,
The handle is pivotally mounted on the lower edge of the first chamber of the rack frame, and has an operating portion located outside the rack frame and at an included angle with respect to the holder, and a push end portion extending into the first chamber and contacting the other surface of the plate piece of the stepping clamp piece;
The slow-descent device includes a swing base, at least one clamping shaft piece, a second spring, at least one position-constraining clamping plate, a third spring, and an eccentric push member;
The swing base is attached to the second chamber and has a frame base, a perforation is formed on a frame surface of the frame base through which the shaft of the height support shaft is inserted, and a storage piece tank and a storage tank are formed at a distance from each other within the frame base via a separation frame having a perforation, and a pivot part is provided at the lower end of the storage tank,
The clamping shaft piece is attached to the storage piece tank of the swing base, and the plate piece has a clamping shaft hole that corresponds to the cross-sectional shape of the shaft of the height support shaft and is fitted into the shaft of the height support shaft, and the upper end of the plate piece extends to the position of the stopper portion, and is positionally restrained or locked by the stopper portion;
the second spring is fitted onto the shaft body of the height support shaft, one end of which is supported by the spacing portion, the other end of which is pressed against the frame surface of the frame seat body of the swing base, the upper end of the pinch shaft piece being restrained in position by the stopper portion, the pinch shaft piece being substantially inclined, the shaft body of the height support shaft being clamped by the pinch shaft hole, and the height support shaft being prevented from moving in the opposite direction to the abutment member in a normal state;
The position restraining clamping plate is attached to the storage tank of the swing base, the plate body corresponds to the cross-sectional shape of the shaft of the height support shaft, has a screw-fitting shaft hole that is fitted onto the shaft of the height support shaft, and has an extending lower end that forms a push-back stopper portion;
the third spring is located in the accommodation tank of the swing base, fitted onto the shaft body of the height support shaft, and presses the plate body of the position restraint clamping plate against the surface of the separation frame to bring them into close contact, so that the position restraint clamping plate is substantially tilted and clamps the shaft body of the height support shaft in one direction via the screw shaft hole, preventing the position restraint clamping plate from sliding in the opposite direction to the support member in a normal state;
the eccentric push member has a rotating body pivotally mounted on the pivot portion of the swing base, the rotating body having an eccentric portion at one end that abuts on the push-back stopper portion of the position restraint clamping plate, and the other end protruding from the second chamber and having a pushing portion. The grip-type jack manual tool described in claim 1, characterized in that the abutment member of the tool body is screwed to a steel plate piece at the front end of the rack frame, a through hole corresponding to the through shaft hole is formed, the support member is fixed to one end of the shaft body of the height support shaft, and the support member has an area larger than that of the steel plate piece of the abutment member and has a notched groove formed to correspond to the shape of the abutment member. a pivot base is provided on a lower edge of the first chamber of the rack frame;
2. The hand grip jack tool according to claim 1, wherein a rod receiving hole is formed on the pivot base, penetrating from the inside to the outside of the first chamber, and the push end of the handle is fitted into the first chamber through the rod receiving hole and is pivotally attached to the pivot base. The hand-held jack tool according to claim 1, characterized in that an upper recess is formed on the upper edge periphery of the second chamber of the rack frame, and one side of the upper recess forms the stopper portion. a pressing and rocking portion is provided on a lower edge of the frame seat body of the swing base in correspondence with a contact position between the holder and the rack frame;
2. The grip-type jack manual tool according to claim 1, wherein the pivot portion is provided on a lower edge peripheral frame of the second chamber of the rack frame, a storage tank communicating with the second chamber is recessed within one side of the holder, an unlocking trigger pivotally mounted on the pivot portion is attached within the storage tank, and an operating end of the unlocking trigger is inserted into the second chamber and located close to the pushing/swaying portion of the swing base. 2. The grip jack manual tool according to claim 1, characterized in that a cover is provided on each of both side surfaces of the rack frame, and the cover closes the first chamber and the second chamber to protect the components in the first chamber and the second chamber, prevents external forces or objects from entering the first chamber and the second chamber, and maintains the component mechanism in a normal state.

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