CN211335465U - A traction pin adapter - Google Patents

Abstract

The utility model relates to a traction pin adapter, which comprises an installation rod. Two clamping plates are symmetrically arranged on both sides of the middle part of the installation rod. Each clamping plate is slidably connected to the installation rod along the length direction of the installation rod. Each splint is fixed with a slider that can slide in the slideway, the front side of the installation rod is provided with a chute along its length direction that communicates with the slideway, and the front side of the installation rod is provided with two drive plates. The two driving boards are respectively fixed on the two sliding blocks, and a driving assembly for driving the two driving boards away from or approaching each other is arranged on the mounting rod. The utility model has the advantage that it can be installed on a variety of traction pins with different diameters, which improves the applicability of the traction pin adapter.

Description

A traction pin adapter

technical field

The utility model relates to an auxiliary device for measuring tools, in particular to a traction pin adapter.

Background technique

The Chinese utility model patent with the authorization announcement number CN204495571U discloses a frame self-centering scale, including a frame, and a first telescopic rod and a second telescopic rod parallel to each other are pierced in the frame; wherein, the first telescopic rod The rod and the second telescopic rod synchronously and reversely extend into or out of the frame; and the first telescopic rod and the second telescopic rod are both suspended to the axle of the vehicle through a spreader. The purpose of the utility model is to provide a frame self-centering ruler that is quick to install and easy to carry.

When the staff is locating the wheels and axles of commercial vehicles, they need to install the frame self-centering scale on the frame of the vehicle under test, so that the center line of the frame and the frame self-centering scale need to be measured first. For the deviation of the midpoint, the staff needs to clamp the traction pin adapter on the traction pin of the vehicle, then install the frame self-centering scale to the traction pin adapter, and finally install the two measuring heads to both sides of the frame, Make the two measuring heads read the scales on the reflection targets at both ends of the self-centering scale of the frame, and calculate the deviation between the center line of the frame and the midpoint of the self-centering scale of the frame.

Referring to FIG. 1 , an existing traction pin adapter generally includes a mounting rod 1 , and two clamping plates 3 for clamping on the peripheral surface of the traction pin are fixed on the mounting rod 1 , and the two clamping plates 3 are symmetrically distributed in the middle of the mounting rod 1 . Both sides of the mounting rod 1 are provided with mounting holes 2 for mounting the self-centering ruler of the frame at positions close to both ends.

The above-mentioned prior art solutions have the following defects: since the distance between the two clamping plates on the traction pin adapter is fixed, the traction pins of different diameters on different vehicles cannot be well clamped. Pin adapters are less suitable.

Utility model content

The purpose of the utility model is to provide a traction pin adapter, which has the advantage that it can be installed on various traction pins with different diameters, thereby improving the applicability of the traction pin adapter.

The above utility model purpose of the present utility model is achieved through the following technical solutions: a traction pin adapter, comprising a mounting rod, two clamping plates are symmetrically arranged on both sides of the middle part of the mounting rod, and each said clamping plate is along the length of the mounting rod The direction sliding is connected to the installation rod, the installation rod is provided with a slideway, each splint is fixed with a slider that can slide in the slideway, and the front side of the installation rod is provided with a slideway connected to the slideway along its length direction. The front side of the installation rod is provided with two drive plates, the two drive plates are respectively fixed on the two sliders, and the installation rod is provided with a drive assembly that drives the two drive plates away from or close to each other.

By adopting the above technical solution, when the worker needs to install the traction pin adapter on the traction pin, the driving device is activated to make the two driving plates move away from each other, thereby driving the two sliders to slide in the slideway in the direction away from each other, Make a suitable distance between the two cleats, then move the tow pin adapter so that the tow pin on the vehicle is located between the two cleats, and finally start the drive to bring the two cleats close to each other, from the clamp on the tow pin. On the peripheral surface, the traction pin adapter can be installed on traction pins with different diameters, which improves the applicability of the traction pin adapter.

The utility model is further configured as follows: two convex pillars are fixedly connected to the opposite sides of the two clamping plates, and an elastic arc-shaped plate abutting against the peripheral surface of the traction pin is fixedly connected between each convex pillar.

By adopting the above technical solution, when the staff drives the two clamping plates to approach each other, and makes the arc surface of the arc plate abut against the peripheral surface of the traction pin, the clamping area of the traction pin is increased, and the resistance to the traction pin is enhanced. Clamping stability.

The utility model is further provided that a spring is arranged between the arc-shaped plate and the clamping plate for driving the arc-shaped plate to bulge in the direction away from the clamping plate.

By adopting the above technical solution, when the arc-shaped plate is pressed against the peripheral surface of the traction pin, the arc-shaped plate is bent toward the side of the spring, thereby compressing the spring, and using the elastic effect of the spring on the arc-shaped plate force to increase the clamping force of the arc plate on the traction pin.

The utility model is further configured as follows: the drive assembly includes a screw rod arranged along the length direction of the installation rod and penetrated on the two driving plates, the screw rod includes a polished rod in the middle and a screw rod coaxially fixed at both ends of the polished rod, and the two The driving plates are respectively screwed on the screws at both ends of the polished rod, the polished rod is sleeved with a connecting seat fixed in the middle of the installation rod, and one end of the screw rod is provided with a driving handle.

By adopting the above technical solution, the staff rotates the driving handle to make the screw rotate around itself. Since the slider fixed to the driving plate is restricted by the slideway, the driving plate will not rotate with the screw, but the screw thread between the driving plate and the screw is limited. connected, so that the drive plate moves along the axis of the screw rod, thereby realizing the distance or approach of the two drive plates from each other.

The utility model is further arranged as follows: the driving handle is fixedly connected with a pin with a polygonal cross section, the end face of the screw rod is provided with a socket for the pin to be inserted, and the end face of the pin and the groove bottom of the socket are embedded There are magnets that attract each other.

By adopting the above technical solution, the drive handle can be detachably connected to the screw rod, which is convenient for the staff to install the two drive plates on the screw rod. The screw turns.

The utility model is further configured as follows: a bearing is arranged between the polished rod and the connecting seat.

By adopting the above technical solution, the frictional resistance received when the work drives the screw to rotate is reduced.

The utility model is further provided that: the middle part of the installation rod is provided with a screw threadedly connected with the screw, and the end face of the screw is pressed against the end face of the traction pin.

By adopting the above technical solution, the situation that the traction pin adapter is rotated when the operator accidentally touches the installation rod is reduced.

To sum up, the beneficial technical effects of the present utility model are:

1. The slideway, slider, chute, drive plate and drive assembly make the splint slide and connect to the mounting rod, and the drive assembly adjusts the distance between the two splints, so that it can be clamped on various traction pins with different diameters , which improves the applicability of the traction pin adapter;

2. Through the setting of the spring, the elastic force of the spring on the arc-shaped plate is used to increase the clamping force of the arc-shaped plate on the traction pin.

Description of drawings

FIG. 1 is a schematic structural diagram of a traction pin adapter in the prior art.

FIG. 2 is a schematic structural diagram of a traction pin adapter in this embodiment.

FIG. 3 is a schematic structural diagram of the driving assembly in this embodiment.

FIG. 4 is a schematic structural diagram of the arc-shaped plate in the natural state of the spring in this embodiment.

FIG. 5 is a schematic diagram of the connection structure of the drive plate and the screw rod in this embodiment.

In the figure, 1, installation rod; 11, slide way; 12, chute; 2, installation hole; 3, splint; 31, slider; 32, drive plate; 33, convex column; 34, arc plate; 35, Spring; 4. Drive assembly; 41, Screw; 411, Polished rod; 412, Screw; 413, Slot; 42, Connecting seat; 43, Driving handle; 431, Pole; screw.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

2 and 3, it is a traction pin adapter disclosed by the utility model, including a mounting rod 1, and the mounting rod 1 is provided with mounting holes 2 for mounting the self-centering scale of the vehicle frame at the positions close to both ends. The rod 1 is provided with two clamping plates 3 for clamping on the peripheral surface of the traction pin. The two clamping plates 3 are symmetrically distributed on both sides of the middle of the mounting rod 1, and each clamping plate 3 is slidingly connected along the length of the mounting rod 1. On the mounting rod 1 , a slideway 11 is opened on the side of the mounting rod 1 inserted into the splint 3 . The slideway 11 is provided with two sliding blocks 31 that can slide in the slideway 11 , and the two sliding blocks 31 are respectively fixed Connected to the two splints 3, the front side of the installation rod 1 is provided with a chute 12 along its length direction, the chute 12 is communicated with the chute 11, and the front side of the installation rod 1 is provided with two drive plates 32, two The driving plates 32 are respectively fixed on the two sliding blocks 31 , and the mounting rod 1 is provided with a driving assembly 4 which drives the two driving plates 32 away from or close to each other.

When the worker needs to install the traction pin adapter on the traction pin, the driving assembly 4 is activated to make the two driving plates 32 move away from each other, thereby driving the two sliders 31 to slide in the slideway 11 in the direction away from each other, so that There is a suitable distance between the two clamping plates 3, then move the traction pin adapter so that the traction pin on the vehicle is located between the two clamping plates 3, and finally activate the drive assembly 4 to make the two clamping plates 3 close to each other, thereby clamping in the On the peripheral surface of the traction pin, the traction pin adapter can be installed on various traction pins with different diameters, which improves the applicability of the traction pin adapter.

Referring to FIG. 3 , in order to strengthen the stability of the clamping of the traction pin by the two clamping plates 3 , two convex pillars 33 are fixed on the opposite sides of the two clamping plates 3 . There is an elastic arc-shaped plate 34, and the end of the arc-shaped plate 34 is fixed to the end of the convex column 33 away from the clamping plate 3; The peripheral surface of the traction pin increases the clamping area for the traction pin and enhances the clamping stability of the traction pin.

Referring to FIG. 4, in order to further improve the stability of the clamping of the traction pin by the two clamping plates 3, a spring 35 is provided on the arc-shaped plate 34, and the two ends of the spring 35 are respectively fixed on the arc-shaped plate 34 and the clamping plate 3, When the spring 35 is in a natural state, the two arc-shaped plates 34 will bulge toward the opposite surfaces. During the process of the arc-shaped plates 34 pressing against the peripheral surface of the traction pin, the arc-shaped plates 34 will be pushed toward the spring 35. One side is bent, and then the spring 35 is compressed, and the elastic force of the spring 35 on the arc-shaped plate 34 is used to increase the clamping force of the arc-shaped plate 34 on the traction pin.

Referring to FIGS. 2 and 3 , the drive assembly 4 includes a screw rod 41 arranged along the length direction of the mounting rod 1 and passing through the two drive plates 32 , the screw rod 41 includes a polished rod 411 in the middle and a coaxially fixed on the polished rod 411 The screws 412 at both ends, the two driving plates 32 are screwed on the screws 412 at both ends of the polished rod 411 respectively, and the two screws 412 rotate in opposite directions. , the screw rod 41 is rotated and supported on the connecting seat 42, and one end of the screw rod 41 is provided with a driving handle 43; in this way, the staff rotates the driving handle 43, so that the screw rod 41 rotates around itself, because the slider fixed to the driving plate 32 31 is restricted by the slideway 11, so that the driving plate 32 will not rotate with the screw 41, but the driving plate 32 is threadedly connected with the screw 41, so that the driving plate 32 moves along the axis of the screw 41, thereby realizing two driving plates 32 are far away or close to each other.

3 and 5 , when the worker installs the two driving plates 32 on the screw rod 41, the two driving plates 32 need to be screwed in from the two ends of the screw rod 41 respectively, so the driving handle 43 is detachably connected to the screw rod 41. On the screw rod 41, the side of the driving handle 43 facing the screw rod 41 is vertically fixed with a pin 431 with a polygonal cross section, and the end face of the screw rod 41 is provided with a slot 413 for inserting the pin 431, and the pin 431 is away from the driving handle. One end of 43 and the bottom of slot 413 are embedded with magnets 432 that attract each other.

Referring to FIG. 3 , in order for the staff to drive the screw rod 41 to rotate around its own axis more smoothly, the polished rod 411 is sleeved with a bearing 5 which is tightly fitted with it, and the bearing 5 is installed on the connecting seat 42. The outer peripheral surface of the bearing 5 and The connection seat 42 is tightly fitted.

Referring to FIG. 3 , the middle of the mounting rod 1 is provided with a screw 6 threadedly connected with it, and one end of the screw 6 is pressed against the end face of the traction pin, so as to reduce the rotation of the traction pin adapter when the staff accidentally touches the mounting rod 1 .

The implementation principle of this embodiment is as follows: when the worker needs to install the traction pin adapter on the traction pin, the driving handle 43 is rotated to make the screw rod 41 rotate around itself, and the two driving plates 32 are separated from each other, so that the two clamping plates 3 There is a suitable distance between them, and then move the traction pin adapter, so that the traction pin on the vehicle is located between the two clamping plates 3, and finally the staff turns the driving handle 43 again, so that the two driving plates 32 on the screw rod 41 are close to each other. , so that the arc-shaped plate 34 is pressed against the peripheral surface of the traction pin, and the arc-shaped plate 34 is bent toward the side of the spring 35, thereby compressing the spring 35, and using the elastic force of the spring 35 on the arc-shaped plate 34, Increase the clamping force of the arc plate 34 on the traction pin.

The examples of this specific embodiment are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore: all equivalent changes made according to the structure, shape and principle of the present invention are not It should be covered within the protection scope of the present invention.

Claims (7)

1. The utility model provides a towing pin adapter, is provided with two splint (3), its characterized in that including installation pole (1), the bilateral symmetry at installation pole (1) middle part: every splint (3) slide along the length direction of installation pole (1) and connect on installation pole (1), slide (11) have been seted up on installation pole (1), the rigid coupling has slider (31) that can slide in slide (11) on every splint (3), spout (12) with slide (11) intercommunication are seted up along its length direction to the leading flank of installation pole (1), the leading flank of installation pole (1) is provided with two drive plates (32), two drive plates (32) rigid coupling respectively are on two sliders (31), be provided with on installation pole (1) and order about drive assembly (4) that two drive plates (32) kept away from each other or are close to.

2. A kingpin adapter as recited in claim 1, wherein: two convex columns (33) are fixedly connected to the opposite side faces of the two clamping plates (3), and an elastic arc-shaped plate (34) which is abutted to the peripheral face of the traction pin is fixedly connected between each convex column (33).

3. A kingpin adapter as recited in claim 2, wherein: a spring (35) used for driving the arc plate (34) to bulge towards the direction deviating from the clamping plate (3) is arranged between the arc plate (34) and the clamping plate (3).

4. A kingpin adapter as recited in claim 1, wherein: drive assembly (4) are including arranging and wearing to establish lead screw (41) on two drive plates (32) along the length direction of installation pole (1), lead screw (41) are including polished rod (411) at middle part and screw rod (412) of coaxial rigid coupling at polished rod (411) both ends, two drive plates (32) threaded connection respectively are on screw rod (412) at polished rod (411) both ends, the cover is equipped with connecting seat (42) of rigid coupling in installation pole (1) middle part on polished rod (411), the one end of lead screw (41) is provided with driving handle (43).

5. The kingpin adapter of claim 4, wherein: the driving handle (43) is fixedly connected with an inserting column (431), the end face of the screw rod (41) is provided with an inserting hole for inserting the inserting column (431), and magnets (432) which are mutually attracted are embedded in the end face of the inserting column (431) and the groove bottom of the inserting groove (413).

6. The kingpin adapter of claim 5, wherein: a bearing (5) is arranged between the polish rod (411) and the connecting seat (42).

7. A kingpin adapter as recited in claim 1, wherein: the middle part of the mounting rod (1) is provided with a screw (6) in threaded connection with the mounting rod, and the end face of the screw (6) is tightly propped against the end face of the traction pin.

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