Static pressure test tool for seat headrest
By designing the seat headrest static pressure test tooling for supporting frames and clamping mechanisms, the problem of inaccurate simulation contact status in the prior art is solved, and the high accuracy and stability of the headrest static pressure test is achieved, ensuring the reliability of the test results.
Patent Information
- Application Number
- CN202422318775.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-23
AI Technical Summary
Existing static pressure test tooling cannot accurately simulate the contact state of the car seat headrest in actual use, especially under high pressure, large deflection or complex loads, which affects the accuracy and reliability of the test results.
A seat headrest static pressure test tool set including a support frame, a test mechanism and a clamping mechanism is designed. Through the cooperation of the lifting and lowering components and the static pressure components, the static pressure plate is fitted with the surface of the headrest to generate an inclination angle. Combined with the buffering function of the clamping mechanism, the stable fixation and uniform pressure transmission of the headrest are achieved.
The accuracy of the static pressure test is improved to ensure that the test results accurately reflect the stress and performance of the headrest in actual use, and to avoid deviation or deformation of the headrest during the test.
Smart Images
Figure CN223154694U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of hydrostatic test, and particularly relates to a hydrostatic test tooling for a seat headrest. Background Technique
[0002] The automotive seat headrest is an important part of the vehicle seat. During the driving process of the vehicle, it plays a supporting and protecting role for the necks and heads of the driver and passengers. When the vehicle collides or brakes suddenly, the headrest can effectively prevent the heads of the driver and passengers from tilting violently backward and reduce the risk of neck injuries. Therefore, the performance and quality of the automotive seat headrest are directly related to the life safety of the driver and passengers.
[0003] In the existing hydrostatic test tooling during the hydrostatic test of the headrest, the surface of the headrest is generally an irregular arc surface, which causes the static pressure plate to be unable to accurately simulate the contact state in actual use during the hydrostatic test of the headrest. Especially in the test conditions of high pressure, large deflection or complex loads, it is difficult to simulate the relative movement and pressure distribution between the contact surface of the static pressure plate and the headrest, affecting the accuracy and reliability of the test results. Content of the Utility Model
[0004] The purpose of the utility model is to provide a hydrostatic test tooling for a seat headrest. By setting a test mechanism, it can accurately reflect the force and performance of the headrest in actual use, and solves the problem that the static pressure plate cannot accurately simulate the contact state in actual use during the hydrostatic test of the headrest.
[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:
[0006] The utility model is a hydrostatic test tooling for a seat headrest, which includes a support frame and a headrest. A test mechanism and a clamping mechanism are arranged on the support frame. The test mechanism includes a lifting component and a plurality of static pressure components;
[0007] The lifting component includes two support rods fixedly connected to the top surface of the support frame. The top ends of the two support rods are fixedly connected with a support plate. A hydraulic cylinder is fixedly connected to the support plate. The output end of the hydraulic cylinder is fixedly connected with a connecting plate. The connecting plate is slidably sleeved on the outer walls of the two support rods. A plurality of static pressure components are arranged on the bottom surface of the connecting plate.
[0008] Furthermore, the static pressure component includes a connecting block fixedly connected to the bottom surface of the connecting plate and two fixed blocks. A static pressure plate is hinged to the bottom surface of the connecting block. A first hinge block is hinged to each of the two fixed blocks.
[0009] Furthermore, a plurality of second hinge blocks are hinged to the static pressure plate. Expansion rods are fixedly connected between the plurality of first hinge blocks and the plurality of second hinge blocks respectively.
[0010] Furthermore, springs I are wound around the outer walls of several of the telescopic rods. One end of each spring I is fixedly connected to the first hinge block, and the other end of each spring I is fixedly connected to the second hinge block.
[0011] Furthermore, the clamping mechanism includes a driving assembly, a sliding assembly, and two buffer assemblies. The driving assembly includes two fixed plates fixedly connected to the top surface of the support frame. A motor is fixedly connected to the left side of the left fixed plate. A bidirectional threaded rod is rotatably connected between the two fixed plates. The left end extension of the bidirectional threaded rod is fixedly connected to the output end of the motor. Two moving plates are sleeved on the outer wall of the bidirectional threaded rod in a threaded manner. The two moving plates are symmetrically distributed on the outer wall of the bidirectional threaded rod.
[0012] Furthermore, the sliding assembly includes a sliding rod fixedly connected between the two fixed plates. The two moving plates are both slidably sleeved on the outer wall of the sliding rod.
[0013] Furthermore, buffer assemblies are arranged on both of the two moving plates. The buffer assembly includes a headrest placed on the top surface of the support frame. Two dampers are fixedly connected to the side of the moving plate close to the headrest. The ends of the two dampers are fixedly connected to a clamping plate. Springs II are wound around the outer walls of the two dampers. One end of each spring II is fixedly connected to the moving plate, and the other end of each spring II is fixedly connected to the clamping plate.
[0014] The utility model has the following beneficial effects:
[0015] 1. By providing a test mechanism, the support rod and the support plate cooperate with each other, making the lifting of the connecting plate more stable, reducing the influence of the torque force during static pressure on the test, improving the accuracy of the static pressure test of the device. When multiple static pressure plates contact the headrest, they will fit on the top surface of the headrest and generate a certain inclination angle, which can more evenly transmit the pressure to each part of the headrest, ensuring that the test results can accurately reflect the force and performance of the headrest in actual use, simulating the static pressure test of headrests with different shapes under real conditions, and further improving the accuracy of the static pressure test.
[0016] 2. By providing a clamping mechanism, the two clamping plates can fit on the left and right sides of the headrest to clamp and fix the headrest, ensuring that the headrest will not shift during the static pressure test. The dampers and the springs II cooperate with each other to buffer the clamping force and avoid deforming the headrest due to excessive force.
[0017] Of course, it is not necessary for any product implementing the utility model to achieve all the above advantages simultaneously. Description of the Drawings
[0018] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0019] Figure 1 Schematic diagram of the overall structure of the present utility model;
[0020] Figure 2 Schematic diagram of the structure of the test mechanism of the present utility model;
[0021] Figure 3 Schematic diagram of the structure of the clamping mechanism of the present utility model;
[0022] Figure 4 is Figure 2 Enlarged structural diagram of part A in
[0023] Figure 5 is Figure 3 Enlarged structural diagram of part B in
[0024] In the drawings, the list of components represented by each reference numeral is as follows:
[0025] 1, support frame; 2, test mechanism; 3, clamping mechanism; 4, headrest; 21, support rod; 22, support plate; 23, hydraulic cylinder; 24, connecting plate; 25, connecting block; 26, static pressure plate; 27, fixed block; 28, hinge block one; 29, hinge block two; 291, telescopic rod; 292, spring one; 31, fixing plate; 32, motor; 33, bidirectional threaded rod; 34, moving plate; 35, sliding rod; 36, damper; 37, clamping plate; 38, spring two. Detailed implementation manners
[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0027] Please refer to Figures 1-5 As shown, the present utility model is a static pressure test tooling for a seat headrest, including a support frame 1 and a headrest 4. A test mechanism 2 and a clamping mechanism 3 are arranged on the support frame 1. The test mechanism 2 includes a lifting assembly and a plurality of static pressure assemblies;
[0028] The lifting assembly includes two support rods 21 fixedly connected to the top surface of the support frame 1. The top ends of the two support rods 21 are fixedly connected with a support plate 22. A hydraulic cylinder 23 is fixedly connected to the support plate 22. The output end of the hydraulic cylinder 23 is fixedly connected with a connecting plate 24. The connecting plate 24 is slidably sleeved on the outer walls of the two support rods 21. A plurality of static pressure assemblies are arranged on the bottom surface of the connecting plate 24. The static pressure assembly includes a connecting block 25 fixedly connected to the bottom surface of the connecting plate 24 and two fixed blocks 27. A static pressure plate 26 is hinged to the bottom surface of the connecting block 25. A first hinge block 28 is hinged to each of the two fixed blocks 27. A plurality of second hinge blocks 29 are hinged to the static pressure plate 26. Expansion rods 291 are fixedly connected between the plurality of first hinge blocks 28 and the plurality of second hinge blocks 29 respectively. Springs 292 are wound around the outer walls of the plurality of expansion rods 291. One end of each spring 292 is fixedly connected to the first hinge block 28, and the other end of each spring 292 is fixedly connected to the second hinge block 29. By providing the test mechanism 2, the support rods 21 and the support plate 22 cooperate with each other to make the lifting of the connecting plate 24 more stable, reduce the influence of torque force during static pressure on the test, improve the accuracy of the static pressure test of the device. When the plurality of static pressure plates 26 come into contact with the headrest 4, they will fit on the top surface of the headrest 4 to generate a certain inclination angle, and can more evenly transmit the pressure to each part of the headrest 4, ensuring that the test results can accurately reflect the force and performance of the headrest 4 in actual use, simulating the static pressure test of headrests 4 with different shapes under real conditions, and further improving the accuracy of the static pressure test.
[0029] The clamping mechanism 3 includes a driving component, a sliding component and two buffer components. The driving component includes two fixed plates 31 fixedly connected to the top surface of the support frame 1. A motor 32 is fixedly connected to the left side of the left fixed plate 31. A bidirectional threaded rod 33 is rotatably connected between the two fixed plates 31. The left end extension of the bidirectional threaded rod 33 is fixedly connected to the output end of the motor 32. Two moving plates 34 are sleeved on the outer wall of the bidirectional threaded rod 33 in a threaded manner. The two moving plates 34 are symmetrically distributed on the outer wall of the bidirectional threaded rod 33. The sliding component includes a sliding rod 35 fixedly connected between the two fixed plates 31. The two moving plates 34 are both slidably sleeved on the outer wall of the sliding rod 35. Buffer components are arranged on the two moving plates 34. The buffer component includes a headrest 4 placed on the top surface of the support frame 1. Two dampers 36 are fixedly connected to one side of the moving plate 34 close to the headrest 4. The ends of the two dampers 36 are fixedly connected to a clamping plate 37. Springs two 38 are wound around the outer walls of the two dampers 36. One end of the spring two 38 is fixedly connected to the moving plate 34, and the other end of the spring two 38 is fixedly connected to the clamping plate 37. By providing the clamping mechanism 3, the two clamping plates 37 can be attached to the left and right sides of the headrest 4 to clamp and fix the headrest 4, ensuring that the headrest 4 will not shift during the static pressure test. The dampers 36 and the springs two 38 cooperate with each other to buffer the clamping force and avoid deforming the headrest 4 due to excessive force.
[0030] A specific application of this embodiment is: by providing the test mechanism 2, when performing a static pressure test on the headrest 4, the hydraulic cylinder 23 can be driven to drive the connecting plate 24 to move downward. The support rod 21 and the support plate 22 cooperate with each other to make the connecting plate 24 more stable during lifting and lowering, reducing the influence of the torque force during static pressure on the test and improving the accuracy of the static pressure test of the device. During the process of the connecting plate 24 moving downward to perform a static pressure test on the headrest 4, the fixed block 27, the hinge block one 28, the hinge block two 29, the telescopic rod 291 and the spring one 292 cooperate with each other, so that when the multiple static pressure plates 26 come into contact with the headrest 4, they will be attached to the top surface of the headrest 4 to generate a certain inclination angle, and the pressure can be more evenly transmitted to each part of the headrest 4, ensuring that the test results can accurately reflect the force and performance of the headrest 4 during actual use, simulating the static pressure test of headrests 4 with different shapes under real conditions, and further improving the accuracy of the static pressure test;
[0031] By providing a clamping mechanism 3, before performing a static pressure test on the headrest 4, the headrest 4 can be first placed on the top surface of the support frame 1. The motor 32 on the fixed plate 31 is driven to drive the bidirectional threaded rod 33 to rotate. With the cooperation of the sliding rod 35, the two moving plates 34 move closer to each other, so that the two clamping plates 37 can be attached to the left and right sides of the headrest 4 to clamp and fix the headrest 4, ensuring that the headrest 4 will not shift during the static pressure test. The damper 36 and the second spring 38 cooperate with each other to buffer the clamping force and prevent the headrest 4 from deforming due to excessive force.
[0032] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0033] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.
Claims
1. A static pressure test tooling for a seat headrest, comprising a support frame (1) and a headrest (4), characterized in that: A test mechanism (2) and a clamping mechanism (3) are arranged on the support frame (1). The test mechanism (2) includes a lifting assembly and a plurality of static pressure assemblies; The lifting assembly includes two support rods (21) fixedly connected to the top surface of the support frame (1). The tops of the two support rods (21) are fixedly connected with a support plate (22). A hydraulic cylinder (23) is fixedly connected to the support plate (22). The output end of the hydraulic cylinder (23) is fixedly connected with a connecting plate (24). The connecting plate (24) is slidably sleeved on the outer walls of the two support rods (21). A plurality of static pressure assemblies are arranged on the bottom surface of the connecting plate (24).
2. The static pressure test tooling for a seat headrest according to claim 1, wherein The static pressure assembly includes a connecting block (25) and two fixed blocks (27) fixedly connected to the bottom surface of the connecting plate (24). A static pressure plate (26) is hinged to the bottom surface of the connecting block (25). A first hinge block (28) is hinged to each of the two fixed blocks (27).
3. The static pressure test tooling for a seat headrest according to claim 2, characterized in that, A plurality of second hinge blocks (29) are hinged to the static pressure plate (26). Expansion rods (291) are fixedly connected between the plurality of first hinge blocks (28) and the plurality of second hinge blocks (29) respectively.
4. The static pressure test tooling for a seat headrest according to claim 3, characterized in that, Spring one (292) is wound around the outer walls of the plurality of expansion rods (291). One end of the spring one (292) is fixedly connected with the first hinge block (28), and the other end of the spring one (292) is fixedly connected with the second hinge block (29).
5. The static pressure test tooling for a seat headrest according to claim 4, characterized in that The clamping mechanism (3) includes a driving assembly, a sliding assembly and two buffer assemblies. The driving assembly includes two fixing plates (31) fixedly connected to the top surface of the support frame (1). A motor (32) is fixedly connected to the left side of the left fixing plate (31). A bidirectional threaded rod (33) is rotatably connected between the two fixing plates (31). The left end extension of the bidirectional threaded rod (33) is fixedly connected with the output end of the motor (32). Two moving plates (34) are threadedly sleeved on the outer wall of the bidirectional threaded rod (33). The two moving plates (34) are symmetrically distributed on the outer wall of the bidirectional threaded rod (33).
6. The static pressure test tooling for a seat headrest according to claim 5, characterized in that The sliding assembly includes a sliding rod (35) fixedly connected between the two fixing plates (31). The two moving plates (34) are both slidably sleeved on the outer wall of the sliding rod (35).
7. The static pressure test tooling for a seat headrest according to claim 6, characterized in that, Buffer assemblies are arranged on the two moving plates (34). The buffer assembly includes a headrest (4) placed on the top surface of the support frame (1). Two dampers (36) are fixedly connected to the side of the moving plate (34) close to the headrest (4). The ends of the two dampers (36) are fixedly connected with a clamping plate (37). Spring two (38) is wound around the outer walls of the two dampers (36). One end of the spring two (38) is fixedly connected with the moving plate (34), and the other end of the spring two (38) is fixedly connected with the clamping plate (37).