Chain and ratchet wheel locking mechanism dismounting auxiliary device for fixing vehicle

Abstract

The utility model relates to the technical field of rotating hub testing, and discloses an auxiliary device for dismounting and mounting a chain and ratchet wheel locking mechanism for fixing a vehicle. The chain and ratchet wheel locking mechanism disassembling and assembling auxiliary device for vehicle fixing comprises a base, a telescopic piece and a U-shaped lock catch, the telescopic piece and the U-shaped lock catch are arranged on the base, the U-shaped lock catch is used for being arranged on a fixing hole of a rotating hub fixing pile in a penetrating mode, and a lock rod is arranged at the open end of the U-shaped lock catch in a penetrating mode and used for being arranged on a connecting hole of a ratchet wheel locking mechanism in a penetrating mode. The telescopic piece can drive the lock rod to move so as to change the opening size of the opening end of the U-shaped lock catch. According to the auxiliary device, the dismounting and mounting efficiency of the ratchet wheel locking mechanism and the rotating hub fixing pile can be improved, enough time is provided for sample vehicle rescue after a fire disaster, operation can be completed through one worker in the whole process, and labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rotating hub testing, in particular to a chain and ratchet locking mechanism disassembly and assembly auxiliary device for fixing a vehicle. Background Art

[0002] During the current slewing test, the test vehicle is restrained using a chain and ratchet locking mechanism connected to the vehicle fixture and the slewing hub mounting post. The existing chain and ratchet mechanism weighs between 20kg and 70kg, depending on the application scenario (passenger car, heavy commercial vehicle), and is approximately 7 meters long. To restrain the vehicle, the chain and ratchet locking mechanism must be manually lifted and straightened, and the hook on the ratchet locking mechanism must be hooked into the mounting hole of the slewing hub mounting post. This process requires three to four people. During vehicle disassembly, the ratchet locking mechanism must be used to release the chain tension, and then the hook must be removed from the slewing hub mounting post to complete the disassembly process. This process requires three to four people to lift the chain and ratchet locking mechanism, which takes about 20 minutes. With the increasing proportion of new energy and hybrid vehicles being developed, the number of fires in prototype vehicles has increased dramatically, and the speed of disassembly directly affects the rescue time of the prototype vehicles. It can be seen that in the current hub test process, the connection method of the chain and ratchet locking mechanism with the hub fixing pile has technical problems such as high labor cost and low disassembly and assembly efficiency. Utility Model Content

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the utility model provides a chain and ratchet locking mechanism disassembly and assembly auxiliary device for fixing a vehicle.

[0004] The utility model provides a chain and ratchet locking mechanism disassembly and assembly auxiliary device for fixing a vehicle, comprising a base and a telescopic member and a U-shaped lock buckle arranged on the base, the U-shaped lock buckle is used to be inserted into the fixing hole of the hub fixing pile, the open end of the U-shaped lock buckle is penetrated by a locking rod, the locking rod is used to be inserted into the connecting hole of the ratchet locking mechanism, and the telescopic member can drive the locking rod to move to change the opening size of the open end of the U-shaped lock buckle.

[0005] Optionally, the telescopic member includes a cylinder assembly, which includes a cylinder, a telescopic rod, and a solenoid valve. The telescopic rod is connected to the locking rod. The cylinder is used to drive the telescopic rod to extend or retract. The cylinder is connected to a first air supply pipe and a second air supply pipe. The solenoid valve is used to control the air flow of the first air supply pipe and the second air supply pipe, and is configured as follows:

[0006] When air is supplied to the cylinder through the first air supply pipe, the telescopic rod extends;

[0007] When air is supplied toward the air cylinder through the second air supply pipe, the telescopic rod retracts.

[0008] Optionally, a manual valve is provided on the second air supply pipeline.

[0009] Optionally, the telescopic member further includes an electric control switch, and the electric control switch is connected to the solenoid valve signal.

[0010] Optionally, one end of the locking rod away from the telescopic member can extend out of the U-shaped lock buckle, and the extended end of the locking rod is provided with a limiting hole for a limiting pin to pass through.

[0011] Optionally, the telescopic rod of the telescopic member and the locking rod are connected via a universal joint.

[0012] Optionally, the base includes a fixed frame, the telescopic member is arranged in the fixed frame, and the U-shaped lock is arranged on one side of the fixed frame.

[0013] Optionally, the plane on which the U-shaped lock buckle is located is a horizontal plane or a vertical plane.

[0014] Optionally, the chain and ratchet locking mechanism disassembly and assembly auxiliary device for fixing a vehicle further includes a lifting assembly, and the base is arranged on the lifting assembly.

[0015] Optionally, the lifting assembly includes a bracket and a lifting member provided on the bracket, the base is provided on the lifting member, and the base and the bracket are slidably matched along the vertical direction.

[0016] The technical solution provided by the embodiment of the utility model has the following advantages compared with the prior art:

[0017] The U-shaped lock is inserted into the fixing hole of the rotating hub fixing pile, and the U-shaped lock is connected to the rotating hub fixing pile by the locking rod. After the connection, the locking rod is driven by the telescopic member to move to close the open section of the U-shaped lock, thereby realizing the fastening connection between the ratchet locking mechanism and the rotating hub fixing pile. The chain can then be tightened by operating the ratchet locking mechanism. During disassembly, the staff only needs to operate the telescopic member to drive the locking rod to retract the locking rod until the locking rod is disengaged from the connecting hole of the ratchet locking mechanism. This can increase the efficiency of disassembly and assembly of the ratchet locking mechanism and the rotating hub fixing pile, provide sufficient time for the rescue of the sample vehicle after a fire, and the entire operation can be completed by one staff member, thereby reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings herein are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.

[0019] In order to more clearly illustrate the implementation mode of the utility model or the technical solution in the prior art, the drawings required for use in the implementation mode or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 A schematic diagram of a chain and ratchet locking mechanism disassembly and assembly assisting device for securing a vehicle according to an embodiment of the present utility model;

[0021] Figure 2 This is a diagram showing the position of the chain and ratchet locking mechanism disassembly and assembly auxiliary device for vehicle fixing according to an embodiment of the present utility model when in use;

[0022] Figure 3 This is a schematic diagram of the support method of the chain and ratchet locking mechanism disassembly and assembly auxiliary device for vehicle fixation according to an embodiment of the present utility model.

[0023] Description of Reference Numerals

[0024] 1. Base; 11. Fixed frame; 2. Telescopic member; 21. Cylinder; 22. Telescopic rod; 23. Solenoid valve; 24. First air supply pipe; 25. Second air supply pipe; 26. Manual valve; 27. Electric switch; 28. Universal joint; 29. ​​Power supply; 3. U-shaped lock; 31. Lock rod; 4. Hub fixing pile; 41. Fixing hole; 5. Limit pin; 6. Lifting assembly; 7. Chain. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0026] The following description sets forth many specific details to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the implementation methods in the specification are only part of the implementation methods of the present invention, not all of the implementation methods.

[0027] Combine Figures 1 to 3As shown, the chain and ratchet locking mechanism disassembly and assembly auxiliary device for vehicle fixing provided by the embodiment of the present invention includes a base 1 and a telescopic member 2 and a U-shaped lock buckle 3 provided on the base 1. The U-shaped lock buckle 3 is used to be inserted into the fixing hole 41 of the rotating hub fixing pile 4, that is, one end of the U-shaped lock buckle 3 can pass through the fixing hole 41 of the rotating hub fixing pile 4, so that the U-shaped lock buckle 3 can be sleeved on the fixing hole 41 of the rotating hub fixing pile 4. The open end of the U-shaped lock buckle 3 is penetrated by a locking rod 31, and the locking rod 31 and the U-shaped lock buckle 3 are in the same plane. The locking rod 31 is used to be inserted into the connecting hole of the ratchet locking mechanism ( Figure 2 The diagram only illustrates the chain 7, not the ratchet locking mechanism. Ratchet locking mechanisms are conventional in the art; it is sufficient to provide a connecting hole. This allows the locking rod 31 to pass through the connecting hole and connect with the ratchet locking mechanism. The telescopic member 2 can move the locking rod 31 to adjust the opening size of the open end of the U-shaped lock clasp 3.

[0028] That is, the locking rod 31 can be inserted through the first side of the open end of the U-shaped lock buckle 3, and can be inserted through the second side of the open end of the U-shaped lock buckle 3, and can be driven by the telescopic member 2 to move along the extension direction of the locking rod 31, and then when connected with the fixing hole 41 of the fixing pile, the telescopic member 2 drives the locking rod 31 to move along the second side direction away from the open end of the U-shaped lock buckle 3, and the open end of the U-shaped lock buckle 3 is opened, so that the second side of the open end of the U-shaped lock buckle 3 can be inserted into the fixing hole 41 of the rotating hub fixing pile 4. In addition, when the ratchet locking mechanism is connected again, the telescopic member 2 drives the locking rod 31 to move along the second side direction away from the open end of the U-shaped lock buckle 3, the open end of the U-shaped lock buckle 3 is opened, and part of the locking rod 31 extends into the open end of the U-shaped lock buckle 3. The connecting hole of the ratchet locking mechanism can be sleeved on the locking rod 31, and then the telescopic member 2 drives the locking rod 31 to move along the second side direction toward the open end of the U-shaped lock buckle 3 until the end of the locking rod 31 passes through the second side of the open end of the U-shaped lock buckle 3, completing the connection and fixation, and performing subsequent tightening, testing and other operations (the ratchet locking mechanism tightens the chain 7, and then performs a hub rotation test. Among them, the way the ratchet locking mechanism tightens the chain 7 is a conventional design and is not described in detail here).

[0029] When the cam 31 is released, the locking rod 31 is pushed back and the locking rod 31 is released, so that the cam 31 is locked and the cam is locked.

[0030] In some embodiments, as Figure 1 As shown, the telescopic part 2 includes a cylinder assembly, which includes a cylinder 21, a telescopic rod 22 and a solenoid valve 23. The telescopic rod 22 is connected to the locking rod 31. The cylinder 21 is used to drive the telescopic rod 22 to extend or retract, thereby driving the locking rod 31 to move along its own length direction. The cylinder 21 is connected to a first air supply pipe 24 and a second air supply pipe 25. The solenoid valve 23 is used to control the air path of the first air supply pipe 24 and the second air supply pipe 25, and is configured as follows: when air is supplied toward the cylinder 21 through the first air supply pipe 24, the telescopic rod 22 extends; when air is supplied toward the cylinder 21 through the second air supply pipe 25, the telescopic rod 22 retracts.

[0031] Specifically, the cylinder 21 is provided with an extension chamber and a retraction chamber, separated by a piston. One end of a telescopic rod 22 extends into the retraction chamber and is connected to the piston. The extension chamber communicates with the outlet of a first air supply pipe 24, while the retraction chamber communicates with the outlet of a second air supply pipe 25. The ends of the first and second air supply pipes 24 and 25, away from the cylinder 21, are connected to an air supply device, which provides air to the first and second air supply pipes 24 and 25. A solenoid valve 23 controls the flow of air between the first and second air supply pipes 24 and 25.

[0032] When the telescopic rod 22 is extended, the first air supply line is opened by the solenoid valve 23. At this time, the second air supply line is closed, and the gas enters the extension cavity through the first air supply line. The pressure in the extension cavity increases, and the piston drives the telescopic rod 22 to extend. At this time, the gas in the retracted cavity is discharged through the first pressure relief pipe.

[0033] When the telescopic rod 22 retracts, the second air supply line is opened through the solenoid valve 23. At this time, the first air supply line is closed, and the gas enters the retraction chamber through the second air supply line. The pressure in the retraction chamber increases, and the piston drives the telescopic rod 22 to retract. At this time, the gas in the extended chamber is discharged through the second pressure relief pipe.

[0034] This design allows for easy operation of the telescopic member 2 and provides sufficient force on the locking rod 31, ensuring that the chain 7 can move the locking rod 31 when stretched, facilitating the removal of the chain 7 and the ratchet locking mechanism. Furthermore, during use, the gas continuously applies force to the telescopic rod 22, preventing accidental unlocking and enhancing safety.

[0035] It is understandable that the cylinder assembly can also be replaced by an electric push rod and a hydraulic cylinder assembly.

[0036] In some embodiments, a manual valve 26 is provided on the second air supply pipe 25. In this design, the provision of the manual valve 26 prevents the second air supply pipe 25 from supplying air toward the retraction cavity due to a malfunction or misoperation of the solenoid valve 23, thereby ensuring safe use of the entire device.

[0037] The present application adopts the secondary control of the solenoid valve 23 and the manual valve 26, which can effectively avoid accidents caused by misoperation during vehicle inspection.

[0038] In some embodiments, the telescopic member 2 further includes an electric switch 27, which is signal-connected to the solenoid valve 23. The electric switch 27 is connected to a power source 29 to provide energy for the electric switch 27. With this design, the opening or closing of the solenoid valve 23 can be remotely controlled via the electric switch 27, thereby achieving remote control and increasing operational convenience.

[0039] In some embodiments, the end of the locking rod 31 away from the telescopic member 2 can extend out of the U-shaped lock buckle 3 , and the extended end of the locking rod 31 is provided with a limiting hole for the limiting pin 5 to pass through.

[0040] Under this design, when in use, the end of the locking rod 31 passes through the U-shaped lock buckle 3 and is inserted into the limiting hole through the limiting pin 5 to prevent the locking rod 31 from exiting the U-shaped lock buckle 3, thereby ensuring safety in use.

[0041] In some embodiments, the telescopic rod 22 of the telescopic member 2 and the locking rod 31 are connected via a universal joint 28 .

[0042] In this design, the telescopic rod 22 and the locking rod 31 are movably connected by setting a universal joint 28, and the two can be non-coaxial, so as to prevent the force borne by the locking rod 31 from being transmitted to the telescopic rod 22, thereby ensuring the service life of the cylinder 21.

[0043] In some embodiments, the base 1 includes a fixed frame 11 , the telescopic member 2 is disposed in the fixed frame 11 , and the U-shaped lock buckle 3 is disposed on one side of the fixed frame 11 .

[0044] Specifically, the fixed frame 11 can be an L-shaped frame or a C-shaped frame. Figure 1 The diagram shows that the fixed frame 11 is in the form of an L-shaped frame, one side of the L-shaped frame is fixedly connected to the side of the cylinder 21, and the other side of the L-shaped frame is fixedly connected to one side of the U-shaped lock buckle 3 to ensure the connection effect. The connection method can be welding, bolt connection or riveting, etc., which can be designed according to actual needs. The above-mentioned universal joint 28 is also set in the fixed frame 11. At this time, the end of the locking rod 31 facing the cylinder 21 passes through one side of the L-shaped frame and is movably connected to the universal joint 28, and the locking rod 31 slides with the fixed frame 11. In order to increase the smoothness of sliding, the locking rod 31 and the fixed frame 11 can be connected by a sliding bearing or a rolling bearing. The telescopic rod 22 of the cylinder 21 and the universal joint 28 can be movably connected or fixedly connected, and these are not restrictive.

[0045] This design makes the overall structure more compact and reduces space occupancy.

[0046] In some embodiments, the plane where the U-shaped lock buckle 3 is located is a horizontal plane or a vertical plane. The setting direction of the U-shaped lock buckle 3 can be designed according to the opening direction of the fixing hole 41 on the hub fixing pile 4. Figure 2 and Figure 3 Taking the direction shown as an example, the fixing hole 41 on the hub fixing pile 4 is opened in the horizontal direction. In this case, the plane where the U-shaped lock buckle 3 is located is a horizontal plane, so that the U-shaped lock buckle 3 can pass through the fixing hole 41 on the hub fixing pile 4. It can be understood that when the fixing hole 41 on the hub fixing pile 4 is opened in the vertical direction, the plane where the U-shaped lock buckle 3 is located is a vertical plane.

[0047] In some embodiments, combined Figure 2 and Figure 3 As shown, the chain and ratchet locking mechanism disassembly and assembly auxiliary device for vehicle fixing further includes a lifting assembly 6, and the base 1 is arranged on the lifting assembly 6. The base 1 extends in the horizontal direction.

[0048] Under this design, the height of the base 1 in the vertical direction can be changed by the lifting assembly 6, thereby changing the height of the U-shaped lock 3 in the vertical direction. At this time, there are multiple fixing holes 41 on the hub fixing pile 4 in the vertical direction, and the U-shaped lock 3 can be connected to different fixing holes 41 to limit the connection position to different heights, meet the connection requirements of different types of vehicles, and increase the scope of use.

[0049] In some embodiments, the lifting assembly 6 includes a bracket and a lifting member disposed on the bracket, the base 1 is disposed on the lifting member, and the base 1 and the bracket slide together in a vertical direction. The lifting member can be a cylinder 21 or a hydraulic cylinder, etc., which can be selected according to actual needs.

[0050] In this design, the sliding fit between the base 1 and the bracket can limit the moving direction of the base 1 and the circumferential position of the base 1, thereby ensuring the firmness of use.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0052] The foregoing description is intended only to provide specific embodiments of the present invention, intended to enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not intended to be limited to the embodiments described herein, but rather to conform to the broadest scope consistent with the principles and novel features of the present invention described herein.

Claims

1. A chain and ratchet locking mechanism disassembly and assembly auxiliary device for vehicle fixing, characterized in that: The invention comprises a base (1), a telescopic member (2) and a U-shaped lock buckle (3) arranged on the base (1); the U-shaped lock buckle (3) is used to be inserted into a fixing hole (41) of a rotating hub fixing pile (4); a locking rod (31) is inserted into the open end of the U-shaped lock buckle (3); the locking rod (31) is used to be inserted into the connecting hole of a ratchet locking mechanism; the telescopic member (2) can drive the locking rod (31) to move so as to change the opening size of the open end of the U-shaped lock buckle (3).

2. The chain and ratchet locking mechanism disassembly and assembly auxiliary device for vehicle fixing according to claim 1, characterized in that: The telescopic member (2) comprises a cylinder assembly, the cylinder assembly comprising a cylinder (21), a telescopic rod (22) and a solenoid valve (23), the telescopic rod (22) being connected to the locking rod (31), the cylinder (21) being used to drive the telescopic rod (22) to extend or retract, the cylinder (21) being connected to a first air supply pipe (24) and a second air supply pipe (25), the solenoid valve (23) being used to control the on-off of the air paths of the first air supply pipe (24) and the second air supply pipe (25), and being configured as follows: When air is supplied toward the cylinder (21) through the first air supply pipe (24), the telescopic rod (22) extends; When air is supplied toward the air cylinder (21) through the second air supply pipe (25), the telescopic rod (22) retracts.

3. The chain and ratchet locking mechanism disassembly and assembly auxiliary device for vehicle fixing according to claim 2, characterized in that: The second air supply pipe (25) is provided with a manual valve (26).

4. The chain and ratchet locking mechanism disassembly and assembly auxiliary device for vehicle fixing according to claim 2, characterized in that: The telescopic member (2) further comprises an electric control switch (27), and the electric control switch (27) is signal-connected to the electromagnetic valve (23).

5. The chain and ratchet locking mechanism disassembly and assembly auxiliary device for vehicle fixing according to claim 1, characterized in that: One end of the locking rod (31) away from the telescopic member (2) can extend out of the U-shaped lock buckle (3), and the extended end of the locking rod (31) is provided with a limiting hole for a limiting pin (5) to pass through.

6. The chain and ratchet locking mechanism disassembly and assembly auxiliary device for vehicle fixing according to claim 1, characterized in that: The telescopic rod (22) of the telescopic member (2) and the locking rod (31) are connected via a universal joint (28).

7. The chain and ratchet locking mechanism disassembly and assembly auxiliary device for vehicle fixing according to claim 1, characterized in that: The base (1) comprises a fixed frame (11), the telescopic member (2) is arranged in the fixed frame (11), and the U-shaped lock buckle (3) is arranged on one side of the fixed frame (11).

8. The chain and ratchet locking mechanism disassembly and assembly auxiliary device for vehicle fixing according to claim 1, characterized in that: The plane on which the U-shaped lock buckle (3) is located is a horizontal plane or a vertical plane.

9. The chain and ratchet locking mechanism disassembly and assembly auxiliary device for vehicle fixing according to any one of claims 1 to 8, characterized in that: The chain (7) and ratchet locking mechanism disassembly and assembly auxiliary device for fixing a vehicle further comprises a lifting assembly (6), and the base (1) is arranged on the lifting assembly (6).

10. The chain and ratchet locking mechanism disassembly and assembly auxiliary device for vehicle fixing according to claim 9, characterized in that: The lifting assembly (6) comprises a bracket and a lifting member arranged on the bracket, the base (1) is arranged on the lifting member, and the base (1) and the bracket are slidably matched along the vertical direction.

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