Torsion testing device for study desk

Abstract

The utility model provides a torsion testing device for a learning desk. The torsion testing device comprises a rack, a supporting frame, a lifting assembly, a torsion sensor, a transmission rod and a driving motor. The supporting frame is arranged on the rack in a liftable mode, and the lifting assembly is used for driving the supporting frame to ascend and descend. The torsion sensor is arranged on the supporting frame. One end of the transmission rod is connected with the output end of the torsion sensor. The driving motor is arranged on the supporting frame, connected with the lifting assembly and the input end of the torsion sensor and synchronously drives the supporting frame to ascend and descend and the transmission rod to rotate. The torsion testing device for the learning desk is simple in structure, convenient to operate, convenient to test the torsion of the learning desk, high in testing efficiency and capable of solving the problems that manual testing is low in testing efficiency and not accurate enough in testing result.

Description

Technical Field

[0001] This utility model relates to the technical field of testing equipment for study desks, and specifically to a torque testing device for study desks. Background Technology

[0002] A study desk is a learning aid that helps children maintain correct study habits and posture, improving learning efficiency. Key features of a study desk include height adjustment and desktop tilting. Currently, the height-adjustable legs of study desks primarily use screw-type adjustable mechanisms, requiring manufacturers to test the torque that drives the legs. Current technology typically uses manual testing for this torque adjustment, which is inefficient and yields inaccurate results. Utility Model Content

[0003] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a torque testing device for a study desk to improve testing efficiency and the accuracy of test results.

[0004] To achieve the above objectives, this utility model provides a torque testing device for a study desk, comprising a frame; a support frame, which is vertically and flexibly mounted on the frame; a lifting assembly for driving the support frame to rise and fall; a torque sensor mounted on the support frame; a transmission rod, one end of which is connected to the output end of the torque sensor; and a drive motor mounted on the support frame. The drive motor is connected to the input ends of the lifting assembly and the torque sensor, respectively, and the drive motor synchronously drives the support frame to rise and fall and the transmission rod to rotate.

[0005] Preferably, the support frame and the machine frame do not rotate relative to each other, and the lifting assembly includes a connecting pipe, a lead screw, a gearbox, and a connecting rod; the connecting pipe is vertically arranged on the machine frame, the lead screw is threaded into the inner hole of the connecting pipe, the gearbox is arranged on the support frame and connected to the lead screw, the connecting rod is rotatably inserted through the gearbox, and the gearbox drives the connecting rod and the lead screw.

[0006] Preferably, the gearbox is located between the drive motor and the torque sensor, and the connecting rod is connected to the input ends of the drive motor and the torque sensor respectively.

[0007] Preferably, the lifting assembly further includes at least two guide rods, which are vertically mounted on the frame, and a first guide sleeve is slidably fitted on the guide rod, which is mounted on the support frame.

[0008] Preferably, the support frame includes an upper plate and a lower plate connected together. The upper plate is located above the lower plate. The drive motor, the torque sensor, and the gearbox are all located on the upper plate. The lead screw passes through the upper plate. The lower plate has a through hole for the connecting pipe to pass through. The first guide sleeve is mounted on the upper plate. A second guide sleeve is slidably fitted on the guide rod. The second guide sleeve is mounted on the lower plate.

[0009] Preferably, the frame is provided with two limit sensors arranged vertically at intervals, and the two limit sensors are used to detect the highest limit position and the lowest limit position of the lower plate.

[0010] Preferably, the device further includes a controller and a speed regulator mounted on the frame, wherein the controller is connected to the speed regulator and the torque sensor respectively, and the speed regulator is connected to the drive motor.

[0011] Preferably, the device further includes a connector that connects the transmission rod and the output end of the torque sensor, respectively.

[0012] Preferably, the bottom of the frame is provided with a plurality of lockable casters.

[0013] The beneficial effects of this utility model are:

[0014] This utility model discloses a torque testing device for a study desk. It utilizes a torque sensor to detect torque, thereby enabling the measurement of the torque required to drive the desk's lifting legs via a transmission rod. Simultaneously, the rotation of the transmission rod and the lifting assembly's movement of the support frame are both driven by a motor, achieving synchronous lifting of the support frame and the desk under test. This improves test stability and accuracy. This torque testing device for study desks is simple in structure, easy to operate, and highly efficient, solving the problems of low efficiency and inaccurate results associated with manual testing. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is a schematic diagram of the structure of a torque testing device for a study desk provided in an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure for the support frame and the machine frame to work together;

[0018] Figure 3 A schematic diagram of the structure in which the drive motor and torque sensor are mounted on the support frame;

[0019] Figure 4 This is a structural schematic diagram of the lifting assembly;

[0020] Figure 5 This is a structural schematic diagram of the torque testing device from another perspective.

[0021] Figure 6 This is a schematic diagram of the torque testing device when testing the torque of a study table.

[0022] Figure 7 for Figure 6 A partial schematic diagram of point A in the middle;

[0023] Figure label:

[0024] 10. Frame; 20. Support frame; 21. Upper plate; 22. Lower plate; 23. Support rod; 30. Lifting assembly; 31. Connecting pipe; 32. Lead screw; 33. Gearbox; 34. Connecting rod; 35. Guide rod; 36. First guide sleeve; 37. Second guide sleeve; 40. Torque sensor; 50. Transmission rod; 60. Drive motor; 70. Limit sensor; 80. Controller; 90. Speed ​​regulator; 100. Connecting piece; 110. Caster wheel. Detailed Implementation

[0025] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0026] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0027] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0029] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] like Figure 1-7 As shown, in one embodiment of this utility model, a torque testing device for a study desk is provided, including a frame 10, a support frame 20, a lifting assembly 30, a torque sensor 40, a transmission rod 50, and a drive motor 60. The support frame 20 is vertically and flexibly mounted on the frame 10. The lifting assembly 30 drives the support frame 20 to rise and fall at the same rate as the rising and falling of the study desk's lifting legs. The torque sensor 40 is fixedly mounted on the support frame 20. One end of the transmission rod 50 is connected to the output end of the torque sensor 40, and the other end extends outside the frame 10. The transmission rod 50 can be connected to the lifting legs of the study desk under test, and rotation can drive the study desk to rise and fall. The drive motor 60 is fixedly mounted on the support frame 20 and is connected to the input ends of the lifting assembly 30 and the torque sensor 40, respectively. The drive motor 60 synchronously drives the support frame 20 to rise and fall, and the transmission rod 50 to rotate.

[0032] This embodiment discloses a torque testing device for a study desk. It utilizes a torque sensor 40 to detect torque, thereby enabling the detection of the torque exerted by the transmission rod 50 to drive the study desk's lifting legs. Simultaneously, the rotation of the transmission rod 50 and the lifting assembly 30 driving the support frame 20 to rise and fall are both driven by a drive motor 60. This achieves synchronized lifting and lowering of the support frame 20 and the study desk under test, thus improving the stability and accuracy of the test results. This torque testing device for a study desk has a simple structure, is easy to operate, facilitates torque testing of study desks, and offers high testing efficiency, solving the problems of low testing efficiency and inaccurate results associated with manual testing.

[0033] See Figure 3 and Figure 4 In one embodiment, the support frame 20 does not rotate relative to the frame 10. The lifting assembly 30 includes a connecting pipe 31, a lead screw 32, a gearbox 33, and a connecting rod 34. The connecting pipe 31 is vertically fixedly installed on the frame 10. The lead screw 32 is threaded into the inner hole of the connecting pipe 31. The gearbox 33 is fixedly installed on the support frame 20 and connected to the lead screw 32. The connecting rod 34 is rotatably mounted on the gearbox 33. The axis of the connecting rod 34 is spatially perpendicular to the axis of the lead screw 32. The gearbox 33 drives the connecting rod 34 and the lead screw 32. The gearbox 33 is located between the drive motor 60 and the torque sensor 40. The connecting rod 34 is connected to the input ends of the drive motor 60 and the torque sensor 40, respectively. The lifting legs of the study table have the same structure and working principle as the lifting assembly 30, and will not be described again here.

[0034] When the drive motor 60 starts, it synchronously drives the connecting rod 34 to rotate, the torque sensor 40 to operate, and the transmission rod 50 to rotate. In this way, the transmission rod 50 can drive the tested study table to rise and fall, and the torque sensor 40 can detect the torque of the transmission rod 50. At the same time, during the rotation of the connecting rod 34, it drives the lead screw 32 to rotate synchronously through the transmission action of the gearbox 33. Since the support frame 20 is mounted on the frame 10 without relative rotation, the lead screw 32 and the connecting tube 31 can drive the support frame 20 to rise and fall on the frame 10.

[0035] Driven by the drive motor 60, the support frame 20 and the test desk can be raised and lowered synchronously, thereby improving the stability of the test and the accuracy of the test results.

[0036] Furthermore, the lifting assembly 30 also includes four guide rods 35, which are vertically mounted on the frame 10. A first guide sleeve 36 is slidably fitted onto each guide rod 35 and is mounted on the support frame 20. By designing the first guide sleeve 36 to cooperate with the guide rods 35, the smoothness of the lifting process of the support frame 20 is improved.

[0037] In one embodiment, the support frame 20 includes an upper plate 21 and a lower plate 22, with the upper plate 21 positioned above the lower plate 22. The upper plate 21 and the lower plate 22 are connected by four support rods 23. The drive motor 60, torque sensor 40, and gearbox 33 are all mounted on the upper plate 21. A lead screw 32 passes through the upper plate 21. The lower plate 22 has a through hole for the connecting pipe 31 to pass through. A first guide sleeve 36 is mounted on the upper plate 21, and a second guide sleeve 37 is slidably fitted onto the guide rod 35. The second guide sleeve 37 is mounted on the lower plate 22.

[0038] In one embodiment, the frame 10 is provided with two limit sensors 70 arranged vertically at intervals. The two limit sensors 70 are mounted on the frame 10 by a bracket. The two limit sensors 70 are used to detect the highest limit position and the lowest limit position of the lower plate 22. The limit sensors 70 can be photoelectric switches or proximity switches.

[0039] In one embodiment, the torque testing device further includes a controller 80 and a speed controller 90 mounted on the frame 10. The controller 80 is a PLC, and is connected to both the speed controller 90 and the torque sensor 40. The speed controller 90 is also connected to the drive motor 60. The controller 80 is also connected to a display. When the torque testing device is operating, the controller 80 controls the drive motor 60 to operate, thereby causing the support frame 20 and the tested study table to rise and fall synchronously. The torque sensor 40 transmits data to the controller 80 for displaying the torque data.

[0040] In one embodiment, the torque testing device further includes a connector 100, which connects the transmission rod 50 and the output end of the torque sensor 40, respectively. The connector 100 is a bidirectional universal joint, and is connected to the output end of the torque sensor 40 and the transmission rod 50 via connecting sleeves. The two ends of the connecting rod 34 are connected to the output shaft of the drive motor 60 and the input end of the torque sensor 40, respectively, via couplings.

[0041] In one embodiment, four lockable casters 110 are provided at the bottom of the frame 10 to facilitate the movement and locking of the torque testing device.

[0042] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A torque testing device for a study desk, characterized in that, include: Rack (10); The support frame (20) is vertically mounted on the frame (10); A lifting assembly (30) is used to drive the support frame (20) to rise and fall; Torque sensor (40) is mounted on the support frame (20); One end of the transmission rod (50) is connected to the output end of the torque sensor (40); as well as A drive motor (60) is mounted on the support frame (20). The drive motor (60) is connected to the input ends of the lifting assembly (30) and the torque sensor (40). The drive motor (60) synchronously drives the support frame (20) to lift and the transmission rod (50) to rotate.

2. The torque testing device for a study desk according to claim 1, characterized in that, The support frame (20) does not rotate relative to the frame (10), and the lifting assembly (30) includes a connecting pipe (31), a lead screw (32), a gearbox (33), and a connecting rod (34); The connecting pipe (31) is vertically mounted on the frame (10). The lead screw (32) is threaded into the inner hole of the connecting pipe (31). The gearbox (33) is mounted on the support frame (20) and connected to the lead screw (32). The connecting rod (34) is rotatably mounted on the gearbox (33). The gearbox (33) drives the connecting rod (34) and the lead screw (32).

3. The torque testing device for a study desk according to claim 2, characterized in that, The gearbox (33) is located between the drive motor (60) and the torque sensor (40), and the connecting rod (34) is connected to the input ends of the drive motor (60) and the torque sensor (40) respectively.

4. The torque testing device for a study desk according to claim 2, characterized in that, The lifting assembly (30) also includes at least two guide rods (35), which are vertically mounted on the frame (10). A first guide sleeve (36) is slidably fitted on the guide rod (35), and the first guide sleeve (36) is mounted on the support frame (20).

5. The torque testing device for a study desk according to claim 4, characterized in that, The support frame (20) includes an upper plate (21) and a lower plate (22) connected together. The upper plate (21) is located above the lower plate (22). The drive motor (60), the torque sensor (40) and the gearbox (33) are all located on the upper plate (21). The lead screw (32) passes through the upper plate (21). The lower plate (22) has a through hole for the connecting pipe (31) to pass through. The first guide sleeve (36) is located on the upper plate (21). The guide rod (35) is slidably fitted with a second guide sleeve (37). The second guide sleeve (37) is located on the lower plate (22).

6. The torque testing device for a study desk according to claim 5, characterized in that, The frame (10) is provided with two limit sensors (70) arranged vertically at intervals. The two limit sensors (70) are used to detect the highest limit position and the lowest limit position of the lower plate (22).

7. The torque testing device for a study desk according to claim 1, characterized in that, It also includes a controller (80) and a speed regulator (90) mounted on the frame (10), the controller (80) being connected to the speed regulator (90) and the torque sensor (40) respectively, and the speed regulator (90) being connected to the drive motor (60).

8. The torque testing device for a study desk according to claim 1, characterized in that, It also includes a connector (100) that connects the transmission rod (50) and the output end of the torque sensor (40) respectively.

9. The torque testing device for a study desk according to claim 1, characterized in that, The bottom of the frame (10) is provided with a plurality of lockable casters (110).

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