Testing device for testing strength of screen cloth for chair back

Abstract

The utility model discloses a testing device for testing the strength of a screen cloth for a chair back, which comprises a base, an adjusting assembly arranged at the top of the base, a movable plate arranged at the top of the base through the adjusting assembly, a fixed plate fixedly mounted on the opposite surface of the movable plate, and a driving motor fixedly mounted on the front side of the fixed plate, the output end of the driving motor penetrates through the fixing plate, extends to the rear side of the fixing plate and is fixedly provided with a screw, the surface of the screw is in threaded connection with a moving block, a guide rod is slidably connected into the moving block, the guide rod is fixedly connected with the fixing plate, a movable plate is fixedly installed on the side face of the moving block, and a containing plate is fixedly installed on the side face of the movable plate. A lifting assembly is arranged on the side face of the movable plate, and a clamping plate is arranged on the side face of the movable plate through the lifting assembly. The front and back positions of the placing plate, the lifting assembly and the clamping plate can be more quickly adjusted according to the width of the chair back mesh cloth body, so that the four corners of the chair back mesh cloth body can be more conveniently fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of testing devices, in particular to a testing device used for testing the strength of mesh cloth for chair backs. Background Art

[0002] As one of the indispensable office furniture for modern people, the comfort and health of computer chairs are getting more and more attention. Among them, the backrest is an important part of the computer chair, and many computer chairs use mesh backrests. Mesh is a kind of fabric with mesh holes, and mesh is a very breathable material that can effectively reduce the accumulation of sweat and keep the body dry. In the process of chair back mesh production, it is often necessary to test the compressive strength of the produced chair back mesh, and a test device is needed to test the compressive strength of the chair back mesh.

[0003] Most of the existing testing devices first clamp and fix the four corners of the seat back mesh, and then perform a compression test on the seat back mesh. However, the clamping mechanisms for clamping and fixing the seat back mesh on the existing testing devices are mostly fixed to the devices by bolts. When it is necessary to adjust the front and rear positions of the clamping mechanisms according to the width of the seat back mesh, it is necessary to remove the bolts with the help of tools so that the front and rear positions of the clamping mechanisms can be adjusted, and then they are fixed by bolts, which makes the entire operation process more cumbersome and wastes a lot of time. Therefore, the utility model provides a testing device for testing the strength of seat back mesh. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a testing device for testing the strength of a mesh fabric for a chair back, which is used to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein the adjusting device is a wood-planer working table, and the adjusting device is a wood-planer working table. The wood-planer working table comprises a base, an adjusting component is arranged on the top of the base, a movable plate is arranged on the top of the base through the adjusting component, a fixed plate is fixedly installed on the opposite surfaces of the movable plates, a driving motor is fixedly installed on the front side of the fixed plate, an output end of the driving motor passes through the fixed plate and extends to the rear side of the fixed plate and is fixedly installed with a screw, a movable block is threadedly connected to the surface of the screw, a guide rod is slidably connected inside the movable block, and the guide rod is fixedly connected to the fixed plate, a movable plate is fixedly installed on the side of the movable block, a placing plate is fixedly installed on the side of the movable plate, a lifting component is arranged on the side of the movable plate, a clamping plate is arranged on the side of the movable plate through the lifting component, a chair back mesh body is overlapped on the top of the placing plate, a display is fixedly installed on the top of the base, and a testing component is arranged on the top of the base.

[0007] Preferably, the adjustment assembly includes a mounting plate arranged on the top of the base, an electric push rod is fixedly mounted on the side of the mounting plate, and an output end of the electric push rod is fixedly connected to the movable plate.

[0008] Preferably, the lifting assembly includes a horizontal plate arranged on the side of the movable plate, a cylinder is fixedly installed on the top of the horizontal plate, and an output end of the cylinder is fixedly connected to the clamping plate.

[0009] Preferably, the test assembly includes a support frame arranged on the top of the base, a hydraulic push rod is fixedly installed on the top of the support frame, a pressure sensor is fixedly installed on the output end of the hydraulic push rod, and the pressure sensor is electrically connected to the display, and a pressure plate is fixedly installed on the bottom of the pressure sensor.

[0010] Preferably, a supporting leg is fixedly mounted on the bottom of the base, and an anti-slip pad is provided on the bottom of the supporting leg.

[0011] Preferably, the top surface of the placement plate is a convex arc-shaped structure, and the bottom surface of the clamping plate is a concave arc-shaped structure.

[0012] Preferably, the guide rod is a cylindrical structure and is made of metal.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the testing device for testing the strength of the mesh cloth for the chair back observes the width of the chair back mesh cloth body, starts the driving motor, and causes the screw to rotate, so that the moving block moves forward and backward along the guide rod, drives the movable plate to move forward and backward, and drives the placement plate to move forward and backward, until the placement plate moves forward and backward to a suitable position, and the four corners of the chair back mesh cloth body are respectively placed on the placement plate, and the clamping plate is moved downward by the lifting assembly to be in close contact with the chair back mesh cloth body, so that the front and rear positions between the placement plate, the lifting assembly and the clamping plate can be adjusted more quickly according to the width of the chair back mesh cloth body, so that the four corners of the chair back mesh cloth body can be fixed more conveniently, thereby reducing the time required to fix the four corners of the chair back mesh cloth body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional stereogram of the utility model;

[0015] Figure 2 For this utility model Figure 1 The enlarged view of point A in the middle;

[0016] Figure 3 This is a rear view of the utility model;

[0017] Figure 4 For this utility model Figure 3 Enlarged view of point B in the middle.

[0018] In the figure: 1. base; 2. mounting plate; 3. electric push rod; 4. moving plate; 5. fixed plate; 6. driving motor; 7. screw; 8. moving block; 9. guide rod; 10. movable plate; 11. placement plate; 12. cross plate; 13. cylinder; 14. clamping plate; 15. chair back mesh body; 16. support frame; 17. hydraulic push rod; 18. pressure sensor; 19. pressure plate; 20. display; 21. support leg. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Reference Figure 1-4A test device for testing the strength of a mesh cloth for a chair back comprises a base 1, an adjustment component is arranged on the top of the base 1, a moving plate 4 is arranged on the top of the base 1 through the adjustment component, the adjustment component comprises a mounting plate 2 arranged on the top of the base 1, an electric push rod 3 is fixedly installed on the side of the mounting plate 2, and the output end of the electric push rod 3 is fixedly connected to the moving plate 4, through the setting of the adjustment component, it is convenient to provide driving force for the left and right movement of the moving plate 4, so as to facilitate the adjustment of the left and right distance of the moving plate 4, a fixed plate 5 is fixedly installed on the opposite surface of the moving plate 4, a driving motor 6 is fixedly installed on the front side of the fixed plate 5, the output end of the driving motor 6 passes through the fixed plate 5 and extends to the rear side of the fixed plate 5 and is fixedly installed with a screw 7, a moving block 8 is threadedly connected to the surface of the screw 7, and the moving plate 8 is fixedly connected to the moving plate 8. A guide rod 9 is slidably connected inside the block 8. The guide rod 9 is a cylindrical structure and is made of metal. The guide rod 9 is made of metal material, so that the guide rod 9 has a higher structural strength, which makes the guide rod 9 more durable and allows the guide rod 9 to better guide the movement of the moving block 8 to avoid the phenomenon of deviation when the moving block 8 moves. The guide rod 9 is fixedly connected to the fixed plate 5, and a movable plate 10 is fixedly installed on the side of the moving block 8. A placement plate 11 is fixedly installed on the side of the movable plate 10. A lifting component is arranged on the side of the movable plate 10. A clamping plate 14 is arranged on the side of the movable plate 10 through the lifting component. The top surface of the placement plate 11 is a convex arc structure, and the bottom surface of the clamping plate 14 is a concave arc structure. The top of the placement plate 11 is overlapped with a chair back mesh body 15, and the lifting component includes a horizontal plate 12 arranged on the side of the movable plate 10, and a cylinder 13 is fixedly installed on the top of the horizontal plate 12, and the output end of the cylinder 13 is fixedly connected to the clamping plate 14. Through the setting of the lifting component, it is convenient to adjust the height of the clamping plate 14, so that the clamping plate 14 can better clamp and fix the chair back mesh body 15. A display 20 is fixedly installed on the top of the base 1, and a test component is arranged on the top of the base 1. The test component includes a support frame 16 arranged on the top of the base 1, and a hydraulic push rod 17 is fixedly installed on the top of the support frame 16. A pressure sensor 18 is fixedly installed on the output end of the hydraulic push rod 17, and the pressure sensor 18 is electrically connected to the display 20. The pressure sensor A pressing plate 19 is fixedly installed at the bottom of the device 18, and a supporting leg 21 is fixedly installed at the bottom of the base 1, and an anti-skid pad is arranged at the bottom of the supporting leg 21. The arrangement of the supporting leg 21 facilitates the device to be placed more stably. The test device for testing the strength of the mesh cloth for the backrest observes the width of the mesh cloth body 15 of the backrest, starts the driving motor 6, and rotates the screw 7, so that the moving block 8 moves forward and backward along the guide rod 9, drives the movable plate 10 to move forward and backward, and drives the placement plate 11 to move forward and backward, until the placement plate 11 moves forward and backward to a suitable position, and the four corners of the mesh cloth body 15 of the backrest are placed on the placement plate 11 respectively, and the clamping plate 14 is moved downward by the lifting assembly to be in close contact with the mesh cloth body 15 of the backrest.It is convenient to adjust the front and rear positions of the placement plate 11, the lifting assembly and the clamping plate 14 more quickly according to the width of the seat back mesh body 15, so that the four corners of the seat back mesh body 15 can be fixed more conveniently, thereby reducing the time required to fix the four corners of the seat back mesh body 15.

[0021] The testing device for testing the strength of the mesh fabric for the chair back is connected to the 220V mains power, and the main controller can be a conventional known device for controlling such as a computer.

[0022] When in use: observe the width of the back mesh body 15, start the drive motor 6, make the screw 7 rotate, make the moving block 8 move forward and backward along the guide rod 9, drive the movable plate 10 to move forward and backward, drive the placement plate 11 to move forward and backward, until the placement plate 11 moves forward and backward to a suitable position, place the four corners of the back mesh body 15 on the placement plate 11 respectively, start the cylinder 13, make the clamping plate 14 move downward, until the clamping plate 14 is in close contact with the back mesh body 15, thereby fixing the four corners of the back mesh body 15, start The electric push rod 3 makes the movable plate 4 move away from each other left and right, which can drive the placement plate 11 and the clamping plate 14 to move away from each other left and right, and drive the left and right ends of the chair back mesh body 15 to move away from each other until the chair back mesh body 15 is in a straightened state, and start the hydraulic push rod 17 to move the pressure sensor 18 and the pressure plate 19 downward, so that the pressure plate 19 contacts with the chair back mesh body 15, thereby generating a reverse force on the pressure sensor 18, and then the data will be displayed on the display 20 until the chair back mesh body 15 breaks, and the compressive strength of the chair back mesh body 15 can be obtained.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A testing device for testing the strength of a mesh fabric for a chair back, comprising a base (1), characterized in that: The top of the base (1) is provided with an adjustment component, and the top of the base (1) is provided with a moving plate (4) through the adjustment component, and a fixed plate (5) is fixedly installed on the opposite surface of the moving plate (4), and a driving motor (6) is fixedly installed on the front side of the fixed plate (5), and the output end of the driving motor (6) passes through the fixed plate (5) and extends to the rear side of the fixed plate (5) and is fixedly installed with a screw rod (7), and a moving block (8) is threadedly connected to the surface of the screw rod (7), and a guide rod (9) is slidably connected inside the moving block (8), and The guide rod (9) is fixedly connected to the fixed plate (5); a movable plate (10) is fixedly installed on the side of the moving block (8); a placement plate (11) is fixedly installed on the side of the movable plate (10); a lifting component is arranged on the side of the movable plate (10); a clamping plate (14) is arranged on the side of the movable plate (10) through the lifting component; a chair back mesh body (15) is overlapped on the top of the placement plate (11); a display (20) is fixedly installed on the top of the base (1); and a test component is arranged on the top of the base (1).

2. A test device for testing the strength of a mesh fabric for a chair back according to claim 1, characterized in that: The adjustment assembly comprises a mounting plate (2) arranged on the top of the base (1), an electric push rod (3) is fixedly mounted on the side of the mounting plate (2), and the output end of the electric push rod (3) is fixedly connected to the moving plate (4).

3. A test device for testing the strength of a mesh fabric for a chair back according to claim 1, characterized in that: The lifting assembly comprises a transverse plate (12) arranged on the side of the movable plate (10), a cylinder (13) is fixedly installed on the top of the transverse plate (12), and the output end of the cylinder (13) is fixedly connected to the clamping plate (14).

4. A testing device for testing the strength of a mesh fabric for a chair back according to claim 1, characterized in that: The test assembly comprises a support frame (16) arranged on the top of the base (1), a hydraulic push rod (17) is fixedly installed on the top of the support frame (16), a pressure sensor (18) is fixedly installed on the output end of the hydraulic push rod (17), and the pressure sensor (18) is electrically connected to the display (20), and a pressure plate (19) is fixedly installed on the bottom of the pressure sensor (18).

5. The testing device for testing the strength of a mesh fabric for a chair back according to claim 1, characterized in that: A support leg (21) is fixedly mounted on the bottom of the base (1), and an anti-slip pad is provided on the bottom of the support leg (21).

6. The testing device for testing the strength of a mesh fabric for a chair back according to claim 1, characterized in that: The top surface of the placement plate (11) is a convex arc-shaped structure, and the bottom surface of the clamping plate (14) is a concave arc-shaped structure.

7. The testing device for testing the strength of a mesh fabric for a chair back according to claim 1, characterized in that: The guide rod (9) has a cylindrical structure and is made of metal.

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