Trailer wagon capable of being automatically released for collision test

Abstract

The utility model discloses an automatic release trailer wagon for collision test, which comprises a frame and a traction head, the top of the frame is provided with a mounting seat, one side of the mounting seat is respectively provided with a controller and a speed sensor, the mounting seat is provided with a fixed tube, a fixed seat is fixed in the fixed tube, and the traction head is fixed in the fixed tube. A connecting rod and a push-pull assembly are arranged on one side of the fixing base. The controller, the speed sensor and the push-and-pull assembly are arranged, the speed sensor transmits the automobile speed to the controller, and after the controller detects that the automobile speed reaches the preset speed, the controller controls the push-and-pull assembly to move to be separated from the clamping jaw body. The clamping jaw body is automatically and quickly separated from the traction head under the action of the side tension piece, so that the purpose of automatically releasing the automobile is achieved, the traction trolley and the automobile are automatically released, and the problem that the automobile speed in an automobile test is affected due to the fact that releasing is not timely enough after a clamping device and the traction head are clamped in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a traction trolley technical field especially relates to a kind of automatic release's traction trolley for crash test. BACKGROUND

[0002] In the quality test of automobile industry, crash test is one of important means for safety performance evaluation of vehicle and parts, for evaluating the performance of vehicle in accident, to improve the safety of automobile, if there is hidden danger, it needs to be improved, in crash test, automobile needs to be towed by external traction trolley, so that automobile reaches the dynamic behavior when colliding.

[0003] In order to avoid the influence of traction trolley speed and weight on automobile crash test, therefore, in crash test, traction trolley needs to be separated from automobile, traction trolley is generally connected with traction head by clamping device to drive automobile dynamic operation, traction hook and safety pin in the clamping device need to be controlled manually in steps, which leads to insufficient timely release speed, and affects the speed of automobile in automobile test.

[0004] Therefore, how to provide a kind of automatic release's traction trolley for crash test is the problem that the person skilled in the art needs to solve urgently. UTILITY MODEL CONTENT

[0005] One purpose of the utility model is to provide a kind of automatic release's traction trolley for crash test, the utility model solves the problem that manual operation release is not timely enough after clamping device and traction head are clamped in prior art, and affects the speed of automobile in automobile test.

[0006] According to the traction trolley for crash test of the utility model embodiment, the top of the frame is provided with a mounting seat, the side of the mounting seat is respectively provided with a controller and a speed sensor, the mounting seat is provided with a fixed tube, the inside of the fixed tube is fixed with a fixed seat, the side of the fixed seat is respectively provided with a connecting rod and a push-pull assembly, the other end of the connecting rod is fixed with a connecting seat, one end of the push-pull assembly is movably sleeved on the surface of the connecting seat, the other end of the connecting seat is provided with a jaw assembly, the jaw assembly includes a side tension member and a jaw body, one end of the jaw body is rotatably connected to the connecting seat, one end of the push-pull assembly is attached to the surface of the jaw body, one end of the side tension member is arranged on the surface of the jaw body, and the other end of the side tension member is fixed on the inner wall of the fixed tube.

[0007] The number of jaw body and side tension member in the jaw assembly is four groups, and the four groups of jaw body and side tension member are distributed in ring array with the axis of the connecting seat as array center.

[0008] The push-pull assembly comprises a telescopic air cylinder, a driving rod and a clamping pipe, the telescopic air cylinder is fixed on the fixed seat and located at the inner side of the connecting rod, one end of the driving rod is arranged on the output shaft of the telescopic air cylinder and staggered with the connecting rod, the other end of the driving rod is fixed on the clamping pipe, the clamping pipe is movably sleeved on the connecting seat, and one end of the clamping pipe is movably arranged on the side surface of the clamping jaw body.

[0009] The side pulling piece is a strong tension spring piece.

[0010] The connecting rod is three groups, and the three groups of connecting rods are arranged in an annular array on the fixed seat, and the driving rod is located between the connecting rods.

[0011] The utility model discloses the beneficial effect is:

[0012] Through setting up controller, speed sensor and push-pull assembly, speed sensor passes automobile speed to controller, and controller detects automobile speed to reach predetermined speed, and controller controls push-pull assembly activity to separate with clamping jaw body, makes clamping jaw body automatic under the action of side pulling piece fast and separates with traction head, and then realizes the purpose of automatic release automobile, makes traction trolley and automobile automatic release, solves the problem of not enough timely manual release of clamping device and traction head clamping in prior art and influences automobile speed in automobile test.

[0013] Through setting up clamping jaw assembly, four clamping jaw bodies in clamping jaw assembly are stably clamped on the surface of traction head through push-pull assembly, and the traction head is covered in all directions, so that it is clamped stably, and there is no need to set up hooks and safety pins for hanging and clamping. ACCURATE DRAWINGS

[0014] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used together with embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0015] Figure 1 The utility model provides a kind of whole stereoscopic flow chart of automatic release traction trolley for collision test.

[0016] Figure 2 The utility model provides a kind of cross section stereoscopic flow chart of push-pull assembly position in automatic release traction trolley for collision test.

[0017] Figure 3 The utility model provides a kind of cross section stereoscopic flow chart of another side of push-pull assembly in automatic release traction trolley for collision test.

[0018] Figure 4 The utility model provides a kind of stereoscopic flow chart of push-pull assembly, connecting rod and clamping jaw assembly connection state in automatic release traction trolley for collision test.

[0019] The drawing mark: 1, frame, 2, traction head, 3, mounting seat, 4, controller, 5, speed sensor, 6, fixed tube, 7, fixed seat, 8, connecting rod, 9, push-pull assembly, 10, connecting seat, 11, jaw assembly, 12, side tension member, 13, jaw body, 14, telescopic cylinder, 15, driving rod, 16, pipe clamp. DETAILED DESCRIPTION

[0020] The utility model will be explained further in detail now in combination with the drawings. These drawings are all simplified schematic diagrams, and only the basic structure of the utility model is schematically shown, so it only shows the relevant structure of the utility model.

[0021] Reference Figure 1 , Figure 2 , Figure 3 And Figure 4 , including frame 1 and traction head 2, the top of frame 1 is provided with mounting seat 3, and mounting seat 3 is used for fixing fixed tube 6, one side of mounting seat 3 is provided with controller 4 and speed sensor 5 respectively, controller 4 is computer, of course, not only limited to computer, and speed sensor 5 is used for detecting the real-time speed of the crash test car in the traction process, fixed tube 6 is provided on mounting seat 3, one end of fixed tube 6 is closed, the other end is open, and is used for butting with traction head 2, fixed seat 7 is fixed in the inside of fixed tube 6, one side of fixed seat 7 is provided with connecting rod 8 and push-pull assembly 9 respectively, push-pull assembly 9 is used to drive jaw assembly 11 to move to realize the clamping function, connecting rod 8 is three groups, and the three groups of connecting rod 8 are arranged in annular array on fixed seat 7, so that not only can connecting seat 10 be stabilized, but also telescopic cylinder 14 can be wrapped to protect telescopic cylinder 14, and connecting seat 10 is also stressed stably, the other end of connecting rod 8 is fixed with connecting seat 10, one end of push-pull assembly 9 is movably sleeved on the surface of connecting seat 10, push-pull assembly 9 includes telescopic cylinder 14, driving rod 15 and pipe clamp 16, telescopic cylinder 14 is fixed on fixed seat 7 and located on the inside of connecting rod 8, one end of driving rod 15 is arranged on the output shaft of telescopic cylinder 14 and is arranged with connecting rod 8, driving rod 15 is located between connecting rod 8, the other end of driving rod 15 is fixed on pipe clamp 16, pipe clamp 16 is movably sleeved on connecting seat 10, one end of pipe clamp 16 moves on the side surface of jaw body 13, when operating, traction head 2 is placed in jaw assembly 11 position, then telescopic cylinder 14 is started, telescopic cylinder 14 is elongated to drive driving rod 15 to move, driving rod 15 moves to the direction of jaw body 13 to drive pipe clamp 16 to move on connecting seat 10, and at the same time, pipe clamp 16 is extruded jaw assembly 11, so that jaw assembly 11 is clamped on the surface of traction head 2 under extrusion.

[0022] Reference Figure 2 , Figure 3And Figure 4 The other end of the connecting seat 10 is provided with a jaw assembly 11 for clamping the traction head 2 from multiple positions of the traction head 2, the jaw assembly 11 comprises a side tension member 12 and a jaw body 13, the number of the jaw body 13 and the side tension member 12 in the jaw assembly 11 is four groups, the four groups of the jaw body 13 and the side tension member 12 are distributed in a ring array with the axis of the connecting seat 10 as the array center, the four groups of the jaw body 13 are respectively at four positions of the traction head 2, so that the traction head 2 is balanced in force during clamping, the side tension member is a strong tension spring member for strongly pulling the jaw body 13, one end of the jaw body 13 is rotationally connected to the connecting seat 10, one end of the push-pull assembly 9 is attached to the surface of the jaw body 13, one end of the side tension member 12 is arranged on the surface of the jaw body 13, the other end of the side tension member 12 is fixed to the inner wall of the fixed pipe 6, during operation, when the clamping pipe 16 moves towards the jaw body 13, the jaw body 13 is pressed to rotate towards the traction head 2, the jaw body 13 rotates at the same time to pull the side tension member 12, so that the side tension member 12 is stressed, the clamping pipe 16 is continuously moved, and the clamping pipe 16 drives the jaw body 13 to stably clamp the surface of the traction head 2, so that the traction head 2 is clamped from four positions, and the clamping is very stable, after the clamping is stable, when the speed sensor 5 detects that the traction trolley drives the car to reach the predetermined speed, the controller 4 controls the telescopic cylinder 14 to quickly contract, so that the telescopic cylinder 14 quickly contracts to drive the clamping pipe 16 to quickly move away from the jaw body 13, at this time, the jaw body 13 is not pressed, the side tension member 12 quickly pulls the jaw body 13 to rotate in the opposite direction of the traction head 2 to quickly separate from the traction head 2, thereby realizing the effect that the jaw body 13 automatically and quickly separates from the traction head 2 without manual operation.

[0023] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An automatically releasable tow dolly for crash testing, characterized by, The utility model relates to a vehicle frame, including frame (1) and traction head (2), the top of frame (1) is provided with mounting seat (3), one side of mounting seat (3) is provided with controller (4) and speed sensor (5) respectively, and is provided with fixed pipe (6) on mounting seat (3), the inside fixed seat (7) of fixed pipe (6), one side of fixed seat (7) is provided with connecting rod (8) and push -pull subassembly (9) respectively, the other end of connecting rod (8) is fixed with connecting seat (10), and one end of push -pull subassembly (9) is movably sleeved on the surface of connecting seat (10), the other end of connecting seat (10) is provided with jaw subassembly (11), jaw subassembly (11) includes side tension piece (12) and jaw body (13) among them, one end of jaw body (13) is rotatably connected on connecting seat (10), and one end of push -pull subassembly (9) is attached on the surface of jaw body (13), one end of side tension piece (12) is arranged on the surface of jaw body (13), and the other end of side tension piece (12) is fixed on the inner wall of fixed pipe (6).

2. An automatically releasable tow dolly for crash testing according to claim 1, wherein, The number of jaw body (13) and side tension piece (12) in the jaw subassembly (11) is four groups, and the four groups of jaw body (13) and side tension piece (12) are arranged in a ring array with the axis of connecting seat (10) as the array center.

3. An automatically releasable tow dolly for crash testing according to claim 2, wherein, The push -pull subassembly (9) includes telescopic cylinder (14), driving rod (15) and clamping pipe (16), telescopic cylinder (14) is fixed on fixed seat (7) and is located on the inside of connecting rod (8), one end of driving rod (15) is arranged on the output shaft of telescopic cylinder (14) and is arranged with connecting rod (8) each other staggered, the other end of driving rod (15) is fixed on clamping pipe (16), clamping pipe (16) is movably sleeved on connecting seat (10), and one end of clamping pipe (16) is movable in the side of jaw body (13).

4. An automatically releasable tow dolly for crash testing according to claim 2, wherein, The side tension piece (12) is a strong tension spring.

5. An automatically releasable tow dolly for crash testing according to claim 3 wherein, The connecting rod (8) is three groups, and the three groups of connecting rod (8) are arranged in a ring array on fixed seat (7), and driving rod (15) is located between connecting rod (8).

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