A development test device for a headrest of an automobile seat

Abstract

The application discloses a kind of automobile seat headrest development test device, belong to automobile accessory technical field.A kind of automobile seat headrest development test device, including workbench plate, the top side of workbench plate is fixed with bracket plate, the output end of electric push rod is provided with clamping assembly, two second fixed lugs are rotatably connected with cylinder column, the top of workbench plate is provided with moving assembly, and the one end of cylinder column is provided with limiting assembly.The present application is pulled up by electric push rod with fixed tensile force value clamping assembly, so as to pull the textile line and test its tensile strength, and then detect the tensile strength limit of the strap, detect, the clamping degree of textile line is higher, easy to operate, by the unlocking and locking of the limiting assembly to the cylinder, so that the strap can be wound in the card slot, the cylinder is unlocked, so that the cylinder can be rotated, the strap is conveniently wound into the card slot, and then the cylinder is locked by the limiting assembly, to improve the detection accuracy.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of automobile accessories, and particularly relates to a development test device for a headrest of an automobile seat. BACKGROUND

[0002] The functions of the headrest of the automobile seat mainly include two aspects, one is to make the head and neck more comfortable and relieve fatigue, and the other is to play a safety protection role. The latter is particularly important, and the headrest of the automobile plays the same role as the airbag, both of which are to protect the safety of the driver and passenger, especially when the vehicle is subjected to a severe collision. In a traffic accident, neck sprain is one of the most common injuries. Data shows that in 26% of rear-end accidents, the head or neck of the driver and passenger will be injured, and the probability of neck injury of the driver and passenger using a good quality headrest will be reduced by 24% under the same conditions. Because in the event of a traffic accident, the huge impact force generated by the collision is all pressed on the fragile neck, and injury to the neck may mean injury to the spinal cord, which is full of nerves and is mostly related to maintaining basic life activities. The headrest is designed to provide support to the head in the event of a collision, thereby protecting the safety of the head and neck of the driver and passenger.

[0003] The headrest strap of the automobile seat is an important component of the headrest of the automobile seat, which is designed to be compact and easy to install, and can provide additional safety and comfort. These straps are usually made of strong and durable materials such as nylon or polyester fibers, which have excellent tensile strength and wear resistance. The benefits of installing the headrest strap of the automobile seat are manifold, as it can ensure that the headrest remains stable during driving. This helps to improve the comfort of the driver and passengers. The tensile strength test of the headrest strap of the automobile seat is an important test method aimed at evaluating the safety performance of the headrest of the automobile seat. The tensile strength of the headrest strap refers to the tensile force that the headrest strap can withstand under the action of force. This test can help manufacturers and regulatory agencies ensure the stability and durability of the headrest of the automobile seat in the event of an accident. However, when performing the tensile test, the end of the strap is fixed relatively simply, and the stability is not good enough. The end of the strap is prone to slipping out under the action of tension, which affects the detection effect.

[0004] Therefore, there is a need for a development test device for a headrest of an automobile seat to solve the problem of insufficient stability of the end of the strap during the tensile test of the headrest strap of the seat in the prior art, and the end of the strap is prone to slipping out under the action of tension, which affects the detection effect. SUMMARY

[0005] The purpose of the present application is to provide a development test device for a headrest of an automobile seat to solve the problems raised in the background.

[0006] To achieve the above object, the present application provides the following technical solutions:

[0007] The utility model provides a car seat headrest development test device, including the workbench board, the top side of workbench board is fixed with the support board, the top of support board is fixed with electric push rod, is provided with clamping assembly on the output of electric push rod, the top side of workbench board is fixed with the second fixed convex board, the second fixed convex board is provided with two and two second fixed convex boards are symmetrically distributed, the rotation is connected with the cylinder between two second fixed convex boards, the lateral surface of cylinder is opened the clamping groove in the middle of cylinder, the top of workbench board is provided with the movement component in the two sides of cylinder and with clamping groove cooperation, one end of cylinder is provided with the limiting component that adjusts cylinder.

[0008] It is worth mentioning in the scheme that the movement component includes a first fixed convex plate fixed to the top side of the workbench plate, the first fixed convex plate is provided with two first fixed convex plates located on both sides of the cylinder, and the two first fixed convex plates are jointly rotatably connected by a double-rotation-direction threaded rod. The side surface of the double-rotation-direction threaded rod is threadedly connected with two nut sleeves, the outer side wall of each of the two nut sleeves is fixedly connected with a moving plate, the bottom end of the moving plate is fixedly connected with a guide protruding rod, the top side of the workbench plate is provided with a guide sliding groove slidably matched with the guide protruding rod, the side surface of each of the two moving plates approaching each other is fixedly connected with a connecting rod, and the end of each of the two connecting rods away from the moving plate is fixedly connected with an arc-shaped clamping plate clamping matched with the clamping groove.

[0009] It is further worth mentioning that the side surface of each of the two arc-shaped clamping plates approaching each other is provided as an arc surface, the side surface of the arc-shaped clamping plate is fixedly connected with a protruding strip, and the protruding strip is provided with a plurality of protruding strips equidistantly distributed.

[0010] It is further worth mentioning that the clamping component includes a clamping seat fixed to the output end of the electric push rod, a recess is formed in the clamping seat, a threaded rod is threadedly connected to the side surface of the clamping seat, and one end of the threaded rod located in the recess is rotatably connected with a clamping plate.

[0011] As a preferred, the side surface of the clamping plate is fixedly connected with a rubber pad, the outer side end of the threaded rod is fixedly connected with a second joint plate, and the surface of the second joint plate is fixedly connected with a rubber sleeve.

[0012] As a preferred, the limiting component includes a joint column fixed to one end of the cylinder, the joint column is coaxially arranged with the cylinder, the joint column is rotatably penetrated through the second fixed convex plate, a joint sleeve is fixedly connected to the outer side wall of the second fixed convex plate and sleeved on the outside of the joint column, a locking bolt is threadedly connected to the side surface of the joint sleeve, and the inner side end of the locking bolt is in contact with the joint column.

[0013] As preferred, a first joint plate is fixed on one end of the double-rotation threaded rod, and a handle rod is fixed on the side of the first joint plate.

[0014] As preferred, a third joint plate is fixed on the end of the joint column away from the barrel column, and a plurality of annularly distributed convex ribs are arranged on the side of the third joint plate.

[0015] As preferred, a plurality of leg rods are fixed on the bottom end side of the workbench plate, and the clamping seats are arranged above the clamping grooves.

[0016] Compared with the prior art, the automobile seat headrest development test device has the following beneficial effects:

[0017] (1) The one end of the automobile seat headrest binding belt is clamped and fixed by the clamping assembly, and the other end of the binding belt is placed into the clamping groove and wound in the clamping groove. The end of the binding belt is clamped and fixed in the clamping groove by the moving assembly, so that the other end of the textile thread is fixed. The clamping degree of the textile thread is high, and the operation is convenient. The electric push rod is started to work, the clamping assembly is pulled up by the electric push rod with a fixed pulling force, so as to pull the textile thread to test its breaking strength, and then the breaking strength limit of the binding belt is detected. The clamping degree of the textile thread is high, the operation is convenient, and the problem that the end of the binding belt is easily pulled off under stress is avoided.

[0018] (2) The limiting assembly is arranged to unlock and lock the barrel column, so that the barrel column can be unlocked to rotate when the binding belt needs to be wound on the clamping groove, and the binding belt is conveniently wound in the clamping groove. The barrel column is locked by the limiting assembly to avoid deflection of the barrel column during the test process, and the detection accuracy is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The overall structure of the present application is shown Figure 1 ;

[0020] Figure 2 The enlarged structure of position A in the present application is shown Figure 1 ;

[0021] Figure 3 The overall structure of the present application is shown Figure 2 ;

[0022] Figure 4 The enlarged structure of position B in the present application is shown Figure 3 ;

[0023] Figure 5 The partial structure of the guide sliding groove of the present application is shown

[0024] Figure 6 A partial structure diagram of the mobile assembly of the present application;

[0025] Figure 7 A partial structure diagram of the mobile assembly of the present application; Figure 6 A partial structure diagram of the mobile assembly of the present application;

[0026] In the figure:

[0027] 1. Mobile assembly; 101. Double-rotation threaded rod; 102. Mobile plate; 103. First fixed protruding plate; 104. Nut sleeve; 105. Guiding protruding rod; 106. First joint plate; 107. Handle rod; 108. Guiding sliding groove; 109. Arc-shaped clamping plate; 110. Protruding strip; 111. Connecting rod; 2. Clamping assembly; 201. Clamping seat; 202. Groove; 203. Threaded rod; 204. Clamping plate; 205. Rubber pad; 206. Second joint plate; 3. Limiting assembly; 301. Joint sleeve; 302. Locking bolt; 303. Joint column; 304. Third joint plate; 4. Workbench plate; 5. Support plate; 6. Electric push rod; 7. Leg rod; 8. Second fixed protruding plate; 9. Cylinder column; 10. Clamping groove. DETAILED DESCRIPTION

[0028] The present application is further described below in conjunction with examples.

[0029] Please refer to Figures 1-7The application provides a car seat headrest development test device, which comprises a workbench plate 4, a support plate 5 is fixed to the top side of the workbench plate 4, an electric push rod 6 is fixed to the top end of the support plate 5, a clamping assembly 2 is arranged on the output end of the electric push rod 6, a second fixed convex plate 8 is fixed to the top side of the workbench plate 4, two second fixed convex plates 8 are symmetrically arranged, a cylinder column 9 is rotatably connected between the two second fixed convex plates 8, a clamping groove 10 is formed in the middle of the cylinder column 9, a moving assembly 1 is arranged on the top end of the workbench plate 4 and located on the two sides of the cylinder column 9 and matched with the clamping groove 10, and a limiting assembly 3 for adjusting the cylinder column 9 is arranged at one end of the cylinder column 9. When in use, one end of a car seat headrest strap is placed into the clamping assembly 2, one end of the car seat headrest strap is clamped and fixed by the clamping assembly 2, the other end of the strap is placed into the clamping groove 10 and wound into the clamping groove 10, the end of the strap is clamped and fixed into the clamping groove 10 by the moving assembly 1, the other end of the textile line is fixed, the clamping degree of the textile line is high, the operation is convenient, the electric push rod 6 is started to work, the clamping assembly 2 is pulled up by the electric push rod 6 with a fixed pulling force, the textile line is pulled to test the breaking strength, the breaking strength limit of the strap is detected, the clamping degree of the textile line is high, the operation is convenient, the problem that the end of the strap is easily pulled off under stress is avoided, the cylinder column 9 is unlocked and locked by the limiting assembly 3, the cylinder column 9 is unlocked when the strap needs to be wound on the clamping groove 10, the cylinder column 9 can be rotated, the strap is conveniently wound into the clamping groove 10, the cylinder column 9 is locked by the limiting assembly 3, the deflection of the cylinder column 9 in the test process is avoided, and the detection precision is improved.

[0030] Further as Figure 1 , Figure 3 , Figure 6 and Figure 7As shown, it is worth noting that the moving assembly 1 comprises a first fixed tab 103 fixed on the top side of the workbench plate 4, the first fixed tab 103 is provided with two first fixed tabs 103 located on both sides of the cylinder 9, and the two first fixed tabs 103 are rotatably connected together. The side surface of the double-rotation screw rod 101 is threadedly connected with two nut sleeves 104, the outer side wall of the two nut sleeves 104 is fixed with a moving plate 102, the bottom end of the moving plate 102 is fixed with a guide protruding rod 105, and the top side of the workbench plate 4 is provided with a guide sliding groove 108 which is slidably matched with the guide protruding rod 105. The side surface of each of the two moving plates 102 away from each other is fixed with a connecting rod 111, and the end of each of the two connecting rods 111 away from the moving plate 102 is fixed with an arc-shaped clamping plate 109 which is clamped with the clamping groove 10. One end of the automobile seat headrest strap is placed in the clamping assembly 2, and the other end of the automobile seat headrest strap is clamped and fixed by the clamping assembly 2, and then the other end of the strap is placed in the clamping groove 10 and wound in the clamping groove 10. By rotating the double-rotation screw rod 101, and guiding and limiting the moving plate 102 through the cooperation of the guide protruding rod 105 and the guide sliding groove 108, the two moving plates 102 are driven to move closer to each other through the cooperation of the double-rotation screw rod 101 and the nut sleeve 104, so as to push the two arc-shaped clamping plates 109 into the clamping groove 10, and clamp and fix the end of the strap in the clamping groove 10 through the arc-shaped clamping plate 109. The other end of the textile thread is fixed, the clamping degree of the textile thread is high, the operation is convenient, and the problem of easy pulling off of the end of the strap under stress is avoided.

[0031] Further as shown in Figure 7 , it is worth noting that the side surface of each of the two arc-shaped clamping plates 109 away from each other is provided with an arc surface, and the side surface of the arc-shaped clamping plate 109 is fixed with a protruding strip 110, and the protruding strip 110 is provided with a plurality of protruding strips 110 which are equidistantly distributed.

[0032] Further as shown in Figure 1 , Figure 4 , and Figure 5As shown, it is worth noting that the clamping assembly 2 comprises a clamping seat 201 fixed on the output end of the electric push rod 6, a groove 202 is formed in the clamping seat 201, a threaded rod 203 is threadedly connected to the side surface of the clamping seat 201, and a clamping plate 204 is rotatably connected to one end of the threaded rod 203 located in the groove 202; In particular, during operation, one end of the automobile seat headrest strap is placed inside the groove 202 and between the clamping plate 204 and the side surface of the groove 202, and the threaded rod 203 is rotated to push the clamping plate 204 to move, thereby clamping and fixing one end of the automobile seat headrest strap.

[0033] Further as shown in Figure 4 , it is worth noting that the side surface of the clamping plate 204 is fixed with a rubber pad 205, the outer end of the threaded rod 203 is fixed with a second joint plate 206, and the surface of the second joint plate 206 is fitted with a rubber sleeve; In particular, during operation, the second joint plate 206 is provided to facilitate holding and rotating the threaded rod 203, and the rubber sleeve is provided to increase the friction when rotating the second joint plate 206.

[0034] Further as shown in Figure 1 , Figure 2 , Figure 3 and Figure 5 , it is worth noting that the limiting assembly 3 comprises a joint column 303 fixed on one end of the cylinder column 9, the joint column 303 is coaxially arranged with the cylinder column 9, the joint column 303 penetrates the second fixed lug plate 8, the outer side wall of the second fixed lug plate 8 is fixed with a joint sleeve 301 sleeved outside the joint column 303, and the side surface of the joint sleeve 301 is threadedly connected with a locking bolt 302, and the inner side end of the locking bolt 302 is in contact with the joint column 303; In particular, during operation, the locking bolt 302 is loosened and tightened to unlock and lock the cylinder column 9, so that when the strap needs to be wound on the clamping groove 10, the cylinder column 9 is unlocked to allow the cylinder column 9 to rotate, the strap is conveniently wound into the clamping groove 10, and then the cylinder column 9 is locked to avoid the deflection of the cylinder column 9 during the test process, thereby improving the detection accuracy.

[0035] The scheme has the following working process: one end of the automobile seat headrest strap is placed inside the groove 202 and between the clamping plate 204 and the side of the groove 202, the threaded rod 203 is rotated, the threaded rod 203 pushes the clamping plate 204 to move, thereby clamping and fixing one end of the automobile seat headrest strap, the other end of the strap is placed inside the clamping groove 10 and wound into the clamping groove 10, the double-rotation threaded rod 101 is rotated, and the moving plate 102 is guided and limited by the guide protruding rod 105 and the guide sliding groove 108, thereby driving the two moving plates 102 to move closer to each other through the cooperation of the double-rotation threaded rod 101 and the nut sleeve 104, thereby pushing the two arc-shaped clamping plates 109 into the clamping groove 10, and clamping and fixing the end of the strap in the clamping groove 10 through the arc-shaped clamping plate 109, thereby fixing the other end of the textile thread, the clamping degree of the textile thread is high, and the operation is convenient, the electric push rod 6 is started to work, the electric push rod 6 pulls up the clamping assembly 2 at a fixed pulling force value, thereby pulling the textile thread to test its breaking strength, and further detecting the breaking strength limit of the strap, detecting, unlocking and locking the cylinder 9 by loosening and tightening the locking bolt 302, thereby unlocking the cylinder 9 when winding the strap on the clamping groove 10, so that the cylinder 9 can be rotated, and the strap can be conveniently wound into the clamping groove 10, and the cylinder 9 is locked.

[0036] Further as shown in Figure 6 It is worth noting that one end of the double-rotation threaded rod 101 is fixed with the first joint plate 106, and the side surface of the first joint plate 106 is fixed with the handle rod 107.

[0037] Further as shown in Figure 7 It is worth noting that one end of the double-rotation threaded rod 101 is fixed with the first joint plate 106, and the side surface of the first joint plate 106 is fixed with the handle rod 107.

[0038] Further as shown in Figure 1 It is worth noting that one end of the double-rotation threaded rod 101 is fixed with the first joint plate 106, and the side surface of the first joint plate 106 is fixed with the handle rod 107.

[0039] In summary: through the clamping assembly 2, one end of the automobile seat headrest strap is clamped and fixed, and the other end of the strap is placed inside the card slot 10 and wound into the card slot 10. Through the moving assembly 1, the end of the strap is clamped and fixed inside the card slot 10, thereby fixing the other end of the textile line. The clamping degree of the textile line is high, and the operation is convenient. Then start the electric push rod 6 to work. The electric push rod 6 pulls up the clamping assembly 2 with a fixed pulling force value, thereby pulling the textile line to test its breaking strength, and further detecting the breaking strength limit of the strap. The clamping degree of the textile line is high, and the operation is convenient. The problem of easy pull-off of the end of the strap under stress is avoided. The limiting assembly 3 is set to unlock and lock the cylinder 9, thereby unlocking the cylinder 9 when winding the strap on the card slot 10. The cylinder 9 can rotate, and the strap is conveniently wound into the card slot 10. Then the limiting assembly 3 locks the cylinder 9 to avoid the deflection of the cylinder 9 during the test process, improve the detection accuracy, and effectively improve the clamping friction of the arc-shaped clamping plate 109 on the strap inside the card slot 10 through the setting of multiple convex strips 110. Further improve the clamping stability. The second joint plate 206 is set to facilitate holding and rotating the threaded rod 203. The rubber sleeve is set to increase the friction when rotating the second joint plate 206. The handle rod 107 is held and rotated, and the handle rod 107 drives the first joint plate 106 to rotate, thereby driving the double-rotation-direction threaded rod 101 to rotate, which is convenient to operate. The third joint plate 304 is set to facilitate the rotation of the cylinder 9, which is labor-saving.

[0040] The electric push rod 6 can be purchased in the market. The electric push rod 6 is provided with a power supply, which belongs to mature technology in the field and has been fully disclosed. Therefore, the specification will not be repeated.

Claims

1. A test apparatus for the development of automotive seat headrests, comprising a worktable (4), characterized in that, A support plate (5) is fixed on the top side of the worktable (4), an electric push rod (6) is fixed on the top of the support plate (5), a clamping assembly (2) is provided on the output end of the electric push rod (6), a second fixed protrusion (8) is fixed on the top side of the worktable (4), there are two second fixed protrusions (8) and the two second fixed protrusions (8) are symmetrically distributed, a cylindrical column (9) is rotatably connected between the two second fixed protrusions (8), a slot (10) is opened on the side of the cylindrical column (9) located in the middle of the cylindrical column (9), a moving assembly (1) is provided on the top of the worktable (4) located on both sides of the cylindrical column (9) and cooperating with the slot (10), and a limiting assembly (3) for adjusting the cylindrical column (9) is provided at one end of the cylindrical column (9); The moving component (1) includes a first fixed protrusion (103) fixed to the top side of the workbench (4). There are two first fixed protrusions (103), and the two first fixed protrusions (103) are located on both sides of the cylinder (9). A double-threaded rod (101) is rotatably connected between the two first fixed protrusions (103). Two nut sleeves (104) are threaded on the side of the double-threaded rod (101). The outer walls of the two nut sleeves (104) are... Each of the two movable plates (102) is fixed with a movable plate (102). The bottom end of the movable plate (102) is fixed with a guide protrusion (105). The top side of the worktable (4) is provided with a guide groove (108) that is slidably adapted to the guide protrusion (105). The two movable plates (102) are fixed with connecting rods (111) on the sides that are close to each other. The ends of the two connecting rods (111) away from the movable plates (102) are fixed with arc-shaped clamping plates (109) that are clamped and cooperated with the slots (10). The two curved clamps (109) are both set as curved surfaces on their sides that are close to each other. The curved clamps (109) are fixed with protrusions (110), and there are multiple protrusions (110) that are equidistantly distributed. The clamping assembly (2) includes a clamp (201) fixed to the output end of the electric push rod (6), a groove (202) is provided in the clamp (201), a threaded rod (203) is threadedly connected to the side of the clamp (201), and a clamping plate (204) is rotatably connected to one end of the threaded rod (203) located in the groove (202). The limiting component (3) includes a connector post (303) fixed to one end of the cylindrical column (9). The connector post (303) is coaxially arranged with the cylindrical column (9). The connector post (303) rotates through the second fixed protrusion plate (8). A connector sleeve (301) is fixed on the outer side wall of the second fixed protrusion plate (8) and sleeved outside the connector post (303). A locking bolt (302) is threaded on the side of the connector sleeve (301). The inner end of the locking bolt (302) contacts the connector post (303).

2. The automotive seat headrest development and testing device according to claim 1, characterized in that, A rubber pad (205) is attached to and fixed on the side of the clamping plate (204), and a second connector plate (206) is fixed to the outer end of the threaded rod (203). A rubber sleeve is fitted onto the surface of the second connector plate (206).

3. The automotive seat headrest development and testing device according to claim 1, characterized in that, A first connector plate (106) is fixed to one end of the double-threaded rod (101), and a handle rod (107) is fixed to the side of the first connector plate (106).

4. The automotive seat headrest development and testing device according to claim 1, characterized in that, The third joint plate (304) is fixed on the end of the joint column (303) away from the cylinder column (9), and the third joint plate (304) has a plurality of convex ribs arranged in a ring on its side.

5. The automotive seat headrest development and testing device according to claim 1, characterized in that, The bottom side of the workbench (4) is fixed with a support rod (7), and there are multiple support rods (7) that are symmetrically distributed. The clamp (201) is located directly above the slot (10).

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