TWI774470B - Connection device of vehicle carrier - Google Patents

Abstract

A connection device of vehicle carrier is provided, including a connection rod and a connection assembly. The connection rod is adapted for plugging in a towbar. The connection assembly has a bass, an urging member and a controller. The base is positioned inside the connection rod. The base has a moving space. The urging member is movably disposed in the moving space. The urging member has a first abutting portion. The controller goes through the moving space and connected with the base. The controller has a thread portion and an intumescence. The thread portion is screwed in the base. The intumescence has a second abutting portion. The second abutting portion is adapted for pushing the first abutting portion.

Description

Carrying frame link device

The present invention relates to a vehicle carrying frame, in particular, to a vehicle carrying frame connecting device which is used for stably connecting a mounting rod on a vehicle and can effectively prevent relative shaking.

There are many types of carriage frames, so the ways of combining them with the body of the car are also different. The more common combination method is: the car body is provided with a mounting rod, the carriage frame is provided with a connecting rod, and the connecting rod is inserted with the mounting rod. The connecting rod and the mounting rod are connected through a connecting piece to prevent the connecting rod and the mounting rod from being separated, such as the frame structure disclosed in Taiwan Patent M473345.

However, in such a conventional vehicle carrying frame structure, there is a slight gap between the connecting rod and the mounting rod, so that they cannot be completely and stably assembled together. When the vehicle shakes, the adjusting member and the connecting rod will sway slightly relative to each other. , it is easy to cause the adjustment piece, the connecting rod and the installation rod to squeeze each other, which leads to the bending of the adjustment piece, the wear of the thread of the adjustment piece, and the expansion of the perforation deformation of the connecting rod, which will cause the adjustment piece and the connecting rod. In severe cases, the adjustment piece may not be smoothly disassembled or assembled, or the adjustment piece may fall off, resulting in a safety problem that the carrying frame is separated from the vehicle body.

Therefore, it is necessary to provide a novel and progressive frame connecting device to solve the above problems.

The main purpose of the present invention is to provide a connecting device for carrying a vehicle frame, which can effectively eliminate the gap between the connecting rod and the mounting rod, strengthen the connection stability between the connecting rod and the mounting rod, and make the connecting rod and the mounting rod more stable. assembled together.

In order to achieve the above object, the present invention provides a connecting device for a carrying frame, comprising: a connecting rod and a connecting assembly. The connecting rod is provided with a first through hole along a first direction, a second through hole is formed along a second direction, and is inserted into a mounting rod along a third direction, the first direction, the second The direction and the third direction are perpendicular to each other; the connecting component includes a base, a pressing block and an operating piece, the base is positioned inside the connecting rod, the base includes an action space, and the action spaces are respectively connected The first through hole and the second through hole, the pressing block is accommodated in the action space and protrudes out of the first through hole movably along the first direction for pressing the inner wall of the mounting rod, The pressing block includes a first abutting portion, the operating piece is for passing through the mounting rod and extending into the operating space through the second through hole to penetrate and connect the base, and the operating piece can be rotated by means of Moving along the second direction, the operating member includes a connected threaded portion and an enlarged portion, the radial dimension of the threaded portion is smaller than the radial dimension of the enlarged portion, the threaded portion is screwed on the base, and The enlarged portion is provided with a second abutting portion, and the extension direction of at least one of the second abutting portion and the first abutting portion is oblique to the first direction and the second direction; When the two abutting portions push against the first abutting portion along the second direction, the first abutting portion will relatively slide against the second abutting portion, and then the bulging portion lifts the pressing block along the first abutting portion. The first through hole protrudes in one direction.

The following examples only illustrate possible implementations of the present invention, but are not intended to limit the scope of protection of the present invention, and are described together first.

Please refer to FIG. 1 to FIG. 10 , which show an embodiment of the present invention. The vehicle-carrying frame connecting device of the present invention includes a connecting rod 1 and a connecting component 2 .

A first through hole 11 is formed through the connecting rod 1 along a first direction 91 , a second through hole 12 is formed through a second direction 92 , and is inserted into a mounting rod 8 along a third direction 93 . The first direction 91 , the second direction 92 and the third direction 93 are perpendicular to each other.

The connecting assembly 2 includes a base 3, a pressing block 4 and an operating member 5, the base 3 is positioned inside the connecting rod 1, the base 3 includes an actuation space 35, and the actuation spaces 35 are respectively connected to the The first through hole 11 and the second through hole 12 , the pressing block 4 is accommodated in the operating space 35 and protrudes from the first through hole 11 movably along the first direction 91 for pressing the installation The inner wall of the rod 8 can effectively eliminate the assembly gap, so that the connecting rod 1 is more firmly connected to the mounting rod 8 without relative shaking.

The pressing block 4 includes a first abutting portion 41 , and the operating member 5 passes through the mounting rod 8 and extends into the actuating space 35 through the second through hole 12 to penetrate and connect the base 3 , and further In other words, the operating member 5 can move along the second direction 92 by rotating. The operating member 5 includes a threaded portion 51 and an enlarged portion 52 connected to each other. The radial dimension of the threaded portion 51 is smaller than the enlarged portion. The radial dimension of the portion 52, the threaded portion 51 is screwed to the base 3, a second abutting portion 53 is provided on the enlarged portion 52, and at least one of the second abutting portion 53 and the first abutting portion 41 is The extension direction of one is oblique to the first direction 91 and the second direction 92 . As a result, when the second abutting portion 53 pushes against the first abutting portion 41 along the second direction 92 , The first abutting portion 41 relatively slides on the second abutting portion 53 , and the enlarged portion 52 lifts the pressing block 4 to protrude from the first through hole 11 along the first direction 91 .

More specifically, the length of the threaded portion 51 is greater than the length of the enlarged portion 52 , and the enlarged portion 52 is a cylinder to reduce unintended interference during rotation. Moreover, the extending direction of the first abutting portion 41 and the extending direction of the second abutting portion 53 are respectively inclined to the first direction 91 and the second direction 92 to increase the smoothness of relative sliding. In addition, the enlarged portion 52 is sleeved on the threaded portion 51 by screwing, and a part of the threaded portion 51 protrudes out of the enlarged portion 52 for screwing the base 3 .

In this embodiment, the enlarged portion 52 is detachably disposed on the threaded portion 51, and the hardness of the second abutting portion 53 is smaller than the hardness of the first abutting portion 41, so as to ensure that the wear will be concentrated on the first abutting portion 51. The second abutting portion 53 effectively maintains the structural integrity of the first abutting portion 41 , so after a period of use, the user only needs to replace the enlarged portion 52 to restore the original tightness. The pressing block 4 is provided with a channel 42 through which the operating member 5 passes through the channel 42 to connect to the base 3 . The first abutting portion 41 is provided on the port edge of the channel 42 with a curved surface. The second abutting portion 53 is provided at the rear end of the enlarged portion 52 in a curved surface.

Preferably, the operating member 5 further includes an extension portion 54 , the extension portion 54 is connected to the threaded portion 51 and protrudes from the mounting rod 8 , and the extension portion 54 is combined with a locking member 7 , thereby The locking member 7 can securely hold the operating member 5 through the mounting rod 8 and the connecting rod 1 , so as to effectively prevent the loss of the operating member 5 and the theft of the carrying frame.

In this embodiment, the radial dimension of the extending portion 54 is smaller than the radial dimension of the threaded portion 51 , the end of the extending portion 54 is arc-shaped, and the first abutting portion 41 faces the second through hole 12 . , the base 3 is provided with a screw hole 37 which can be screwed with the screw portion 51 . When the operating member 5 does not penetrate into the operating space 35, the pressing member is pressed against a bottom wall 36 of the operating space 35 in the first direction 91 and does not protrude from the base 3, and the first The abutting portion 41 is arranged to overlap with the screwing hole 37 in the second direction 92 .

It is worth mentioning that, during the plug-in process, the operation member 5 pushes the first abutting portion 41 through the end of the extension portion 54 to lift the pressing member for the first time, and the pressing member is disengaged. The bottom wall 36 slides against the extending portion 54 ; and after the operating member 5 continues to move a first predetermined distance toward the direction of passing through the base 3 , the threaded portion 51 pushes against the first abutting portion 41 to Lift the pressing piece for the second time to make the pressing piece slide against the threaded portion 51 ; finally, when the operating piece 5 continues to move the second predetermined distance toward the direction of passing through the base 3 , the first The two abutting portions 53 push against the first abutting portion 41 to lift the pressing piece for the third time, so that the pressing piece is pressed against the inner wall of the mounting rod 8 . In other words, during the process from when the operating member 5 is not inserted to the operating member 5 connecting the connecting rod 1 and the mounting rod 8 in series, the pressing member undergoes three lifting processes. The tightening piece moves slowly and steadily along the first direction 91, which can reduce unnecessary wear and collision.

More specifically, the base 3 further includes a first inner side wall 31 and two second inner side walls 32 perpendicular to the second direction 92 , and the two second inner side walls 32 are laterally connected to the first inner side wall at intervals. 31 to define the action space 35, the pressing block 4 is kept sliding against the first inner side wall 31 and the two second inner side walls 32, the first inner side wall 31 and the two second inner side walls 32 are used for Constraining, limiting, and guiding the pressing block 4 to slide along the first direction 91 indeed.

More specifically, the base 3 further includes a third inner side wall 33 and a through hole 34 . The third inner side wall 33 faces the first inner side wall 31 and connects the two second inner side walls 32 . The third inner side wall 33 is connected to the second inner side wall 32 . The extension of the side wall 33 is oblique to the second direction 92 . The first inner side wall 31 , the two second inner side walls 32 and the third inner side wall 33 define the operating space 35 , and the through hole 34 is along the second inner side wall 35 . The direction 92 runs through the third inner side wall 33 to communicate with the operating space 35 and the second through hole 12 ; wherein, the pressing block 4 further includes an inclined wall 43 , when the operating member 5 does not penetrate the operating space 35 , the inclined wall 43 abuts against the third inner side wall 33 .

The inclined structure of the inclined wall 43 and the third inner side wall 33 can increase the contact area between the two. , to ensure that the pressing block 4 can be supported and guided stably. In addition, the difference between the first inner side wall 31 and the third inner side wall 33 is convenient for the installer to quickly identify the installation direction, so it has the effect of foolproof guidance for installation.

In the present embodiment, in the first direction 91 , the heights of the first inner side wall 31 and the two second inner side walls 32 are the same, and the height of the third inner side wall 33 is lower than that of the first inner side wall 31 When the inclined wall 43 abuts against the third inner side wall 33, a part of the pressing block 4 is exposed to the open opening 38, which is convenient for accommodating the user's fingers for gripping .

As can be seen from the previous description, when the operating member 5 extends into the operating space 35 to connect to the base 3 and the second abutting portion 53 does not push against the first abutting portion 41 , the pressing block 4 is pressed against the base 3 . The threaded portion 51 is located in the portion of the operating space 35 . The pressing block 4 further includes a protruding portion 44 . The protruding portion 44 is located on the side of the pressing block 4 facing away from the operating member 5 . When the pressing block 4 is pressed against the threaded portion 51 , the In the first direction 91 , the shortest linear distance from the end face of the convex portion 44 facing away from the operating member 5 to the threaded portion 51 is defined as a first distance 61 , and the shortest linear distance from the first through hole 11 to the threaded portion 51 Defined as a second distance 62 , the first distance 61 is greater than the second distance 62 , so that the protruding portion 44 remains inserted into the first through hole 11 and further supports the pressing block 4 .

More specifically, the pressing block 4 further includes a main body 45 and two leg portions 46 , the convex portion 44 and the two leg portions 46 are disposed on opposite sides of the main body 45 , and the inclined wall 43 is formed by the main body 45 . The side of the two feet 46 extends to the side of the two feet 46 , the two feet 46 are arranged at intervals and then form the channel 42 with the main body 45 , the channel 42 is an open structure, and the two feet 46 straddle the operation. The opposite sides of piece 5.

11 and 12, the base 3A further includes a screw hole 37A that can be screwed with the threaded portion 51A, and a groove 39, the groove 39 is along the first The concave 92 extends in two directions and communicates with the screw hole 37A, the second abutting portion 53A is inclined, and the enlarged portion 52A further includes a third abutting portion 55 extending along the second direction 92 The highest part of the second abutting portion 53A is connected to the ground; wherein, when the first abutting portion 41A slides from the second abutting portion 53A to the third abutting portion 55 and protrudes from the first through hole 11A, The second abutting portion 53A is inserted into the groove 39 . It can be understood that the thicker third abutting portion 55 has better structural strength, so it can support the pressing block 4A for a long time, and the second abutting portion 53A can be embedded in the groove 39. The degree of connection with the base 3A is further improved to avoid relative shaking.

1: connecting rod 11, 11A: The first through hole 12: Second through hole 2: Link Components 3, 3A: Base 31: The first inner side wall 32: Second inner side wall 33: Third inner side wall 34: Perforation 35: Action Space 36: Bottom Wall 37, 37A: Screw holes 38: Open mouth 39: Groove 4, 4A: Press block 41, 41A: The first abutting part 42: Channel 43: Inclined Wall 44: convex part 45: Subject 46: Feet 5: Operating parts 51, 51A: Threaded part 52, 52A: Expansion 53, 53A: Second contact part 54: Extensions 55: The third abutment 61: First distance 62: Second distance 7: Locks 8: Mounting rod 91: First Direction 92: Second direction 93: Third Direction

FIG. 1 is a perspective view of an embodiment of the present invention. FIG. 2 is an exploded view of FIG. 1 . FIG. 3 shows the base and the pressing block when the operating element is not plugged in according to an embodiment of the present invention. FIG. 4 is a cross-sectional perspective view of FIG. 3 . FIG. 5 to FIG. 8 are diagrams showing the insertion and connection of the operating element according to an embodiment of the present invention. FIG. 9 is a perspective view of FIG. 8 . FIG. 10 is a partial enlarged view of FIG. 9 . FIG. 11 is an exploded view of another embodiment of the present invention. FIG. 12 is a cross-sectional view of another embodiment of the present invention.

1: connecting rod

11: The first through hole

12: Second through hole

3: Base

31: The first inner side wall

32: Second inner side wall

34: Perforation

35: Action Space

44: convex part

45: Subject

46: Feet

51: Threaded part

52: Expansion

53: Second contact part

54: Extensions

7: Locks

Claims (10)

A vehicle-carrying frame connecting device, comprising: A connecting rod is provided with a first through hole along a first direction, a second through hole is formed through a second direction, and is inserted into a mounting rod along a third direction, the first direction, the first through hole The two directions and the third direction are perpendicular to each other; and A connecting assembly includes a base, a pressing block and an operating piece, the base is positioned inside the connecting rod, the base includes an actuation space, and the actuation space communicates with the first through hole and the second respectively a through hole, the pressing block is accommodated in the actuating space and protrudes out of the first through hole movably along the first direction for pressing the inner wall of the installation rod; the pressing block includes a first abutting The operating part is provided for passing through the mounting rod and extending into the operating space through the second through hole to penetrate and connect the base; the operating part can move in the second direction by rotating, and the operating The part includes a threaded part and an enlarged part connected, the radial dimension of the threaded part is smaller than the radial dimension of the enlarged part, the threaded part is screwed on the base, and a second abutment is arranged on the enlarged part part, the extension direction of at least one of the second abutting part and the first abutting part is oblique to the first direction and the second direction; Wherein, when the second abutting portion pushes against the first abutting portion along the second direction, the first abutting portion will relatively slide against the second abutting portion, and then the bulging portion lifts the pressing portion The tightening block protrudes from the first through hole along the first direction. The vehicle carrying frame connecting device of claim 1, wherein the enlarged portion is sleeved on the threaded portion by means of screwing, and a portion of the threaded portion protrudes out of the enlarged portion to screw the base. The vehicle carrying frame connecting device as claimed in claim 1, wherein the base further comprises a screw hole that can be screwed with the threaded portion, and a groove, the groove is concave along the second direction and Connecting to the screw hole, the second abutting portion is inclined, the enlarged portion further includes a third abutting portion, and the third abutting portion extends along the second direction to connect with the highest portion of the second abutting portion where, when the first abutting portion slides from the second abutting portion to the third abutting portion and protrudes from the first through hole, the second abutting portion is inserted into the groove. The vehicle carrying frame connecting device as claimed in claim 1, wherein the extending direction of the first abutting portion and the extending direction of the second abutting portion are oblique to the first direction and the second direction, respectively, and the forcing A passage is formed through the tightening block, the operating piece is connected to the base through the passage, the first abutting portion is arranged on the port edge of the passage with a curved surface, and the second abutting portion is a curved surface. set at the end of the enlarged part. The carrying frame connecting device of claim 1, wherein when the operating member extends into the operating space to connect the base and the second abutting portion does not push against the first abutting portion, the pressing block is Pressed against the portion of the threaded portion located in the operating space, the pressing block further includes a convex portion, the convex portion is located on the side of the pressing block facing away from the operating member, when the pressing block is pressed against the In the case of a threaded portion, in the first direction, the shortest linear distance from the end face of the convex portion facing away from the operating member to the threaded portion is defined as a first distance, and the shortest linear distance from the first through hole to the threaded portion is defined as is a second distance, the first distance is greater than the second distance, and the protruding portion remains inserted into the first through hole. The vehicle carrying frame connecting device as claimed in claim 5, wherein the pressing block further comprises a main body and two legs, the protruding part and the two legs are arranged on two opposite sides of the main body, and the inclined wall is formed by the The side surface of the main body extends to the side surfaces of the two leg portions, the two leg portions are arranged at intervals, and the two leg portions are spanned on two opposite sides of the operating member. The vehicle carrying frame connecting device according to any one of claims 1 to 6, wherein the base further comprises a first inner side wall and two second inner side walls perpendicular to the second direction, the two second inner side walls It is laterally connected to the first inner side wall at intervals to define the working space, and the pressing block keeps sliding against the first inner side wall and the two second inner side walls. The vehicle carrying frame connecting device as claimed in claim 7, wherein the base further comprises a third inner side wall and a through hole, the third inner side wall faces the first inner side wall and connects the two second inner side walls, the The extension of the third inner side wall is oblique to the second direction, the first inner side wall, the two second inner side walls and the third inner side wall define the operating space, and the through hole penetrates the first inner side wall along the second direction. Three inner side walls are connected to the operating space and the second through hole; wherein, the pressing block further includes an inclined wall, when the operating member does not penetrate the operating space, the inclined wall is against the third inner wall side wall. The vehicle carrying frame connecting device as claimed in claim 8, wherein in the first direction, the heights of the first inner side wall and the two second inner side walls are the same, and the height of the third inner side wall is lower than the height of the first inner side wall. The height of an inner side wall further forms an open opening. When the inclined wall abuts against the third inner side wall, a portion of the pressing block is exposed to the open opening. The vehicle frame connecting device as claimed in claim 6, wherein the enlarged portion is sleeved on the threaded portion by means of screwing, and a portion of the threaded portion protrudes out of the enlarged portion to screw the base; the first The hardness of the second abutting portion is smaller than the hardness of the first abutting portion; the extending direction of the first abutting portion and the extending direction of the second abutting portion are oblique to the first direction and the second direction, respectively, The pressing block is provided with a passage through which the operating member passes through the passage to connect to the base, the first abutting portion is provided on the port edge of the passage with a curved surface, and the second abutting portion is curved The base is further provided with a first inner sidewall and two second inner sidewalls perpendicular to the second direction, and the two second inner sidewalls are laterally connected to the first inner sidewall at intervals The side wall defines the action space, the pressing block keeps sliding against the first inner side wall and the two second inner side walls; the base further includes a third inner side wall and a through hole, the third inner side wall surface The first inner side wall is connected to the two second inner side walls, the extension of the third inner side wall is oblique to the second direction, the first inner side wall, the two second inner side walls and the third inner side wall surround The action space is formed, and the through hole penetrates through the third inner side wall along the second direction to communicate the action space and the second through hole; wherein, the pressing block further includes an inclined wall, when the operating member does not penetrate In the operating space, the inclined wall is abutted against the third inner side wall; in the first direction, the heights of the first inner side wall and the two second inner side walls are the same height, and the height of the third inner side wall is An open opening is formed below the height of the first inner side wall. When the inclined wall abuts against the third inner side wall, a portion of the pressing block is exposed to the open opening; the pressing block further includes a main body and two foot parts, the convex part and the two foot parts are arranged on the opposite sides of the main body, the inclined wall is extended from the side surface of the main body to the side surface of the two foot parts, the two foot parts are arranged at intervals, the two The feet are straddling two opposite sides of the operating member; the length of the threaded part is greater than the length of the enlarged part; the enlarged part is a cylinder; the channel is an open structure; the enlarged part is detachably arranged on the A threaded portion; the operating member further includes an extension portion, which is connected to the threaded portion and protrudes from the mounting rod, and the extension portion is used for a locking piece to be combined with; the radial dimension of the extension portion is smaller than the thread The radial dimension of the part, the end of the extension part is arc-shaped, the first abutting part faces the second through hole, and the base is provided with a screw hole that can be screwed with the threaded part. When the operating member does not penetrate into the operating space, the pressing member is pressed against a bottom wall of the operating space in the first direction and does not protrude from the base, and the first abutting portion is then pressed against the second The direction is overlapped with the screwing hole; wherein, during the plugging process, the operating member pushes the first abutting portion through the end of the extending portion to lift the pressing member for the first time, and the pressing member is firstly lifted. The pressing part is separated from the bottom wall and slides against the extension part; after the operating part continues to move a first predetermined distance toward the direction of passing through the base, the threaded part pushes the first abutting part for a second time Lift the pressing member, the pressing member slides against the threaded portion; finally, when the operating member continues to face the penetration After the direction of the base moves a second predetermined distance, the second abutting portion pushes against the first abutting portion to lift the pressing member for a third time.

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