A running belt strength testing device

Abstract

The utility model relates to the technical field of running belt strength test, concretely to a kind of running belt strength testing device, including operation platform, the surface of operation platform and support plate is provided with distance adjusting mechanism, the surface of L type frame and test frame is provided with guiding anti-deviation mechanism, the surface of L type frame and mounting frame is provided with convenient assembly mechanism.The utility model not only makes the test device use when can according to the size of running belt body, the distance between support plate is adjusted, so that the test device is more versatile when using, so that the test device uses when convenient user is assembled plate assembled in the surface of mounting frame inside test frame, so that the test device is more convenient operation when using, and make the test device use when guiding when test frame and assembled plate lift, so that the test device is more accurate when using to the test of running belt body surface.

Description

Technical Field

[0001] This utility model relates to the field of running belt strength testing technology, specifically a running belt strength testing device. Background Technology

[0002] Treadmills have become increasingly common in ordinary households, becoming the best choice for most people who want to exercise and stay healthy but don't have much time for outdoor activities. In addition to the motor and control program, the running belt is also a very important component of a treadmill. During the production process of the running belt, its strength needs to be tested, and a running belt strength testing device is required for the test.

[0003] Existing testing equipment cannot meet the strength testing needs of running belts of various sizes. Furthermore, the distance between the support plates cannot be adjusted according to the different dimensions of the running belt, making the equipment uncommon. Assembly is also inconvenient, making it difficult for users to install the assembly plates onto the mounting brackets inside the testing frame, hindering operation. In addition, existing testing equipment typically lacks guiding and anti-skew functions, resulting in inaccurate testing of the running belt surface. Utility Model Content

[0004] The purpose of this utility model is to provide a running belt strength testing device to solve the problems mentioned in the background art, such as the inability to adjust the distance between the support plates, inconvenience in assembly, and the lack of guiding and anti-skewing functions.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a running belt strength testing device, comprising an operating table, an L-shaped frame mounted on the top surface of the operating table, a controller mounted on the surface of the L-shaped frame, a housing mounted on the top surface of the L-shaped frame, a testing frame disposed below the L-shaped frame, an mounting frame mounted on the inner wall of the testing frame, an assembly plate disposed at the bottom of the testing frame, support plates disposed on the top surface of the operating table, a running belt body placed on the surface of the support plates, a distance adjustment mechanism disposed on the surfaces of the operating table and the support plates, a guide and anti-skew mechanism disposed on the surfaces of the L-shaped frame and the testing frame, and a convenient assembly mechanism disposed on the surfaces of the L-shaped frame and the mounting frame.

[0006] Preferably, a fixing cylinder is installed on the surface of the top position of the housing, and a drive motor is installed on the surface of the housing by screws. The input end of the drive motor is electrically connected to the output end of the controller. A rotating shaft is installed on the output end of the drive motor via a coupling. One end of the rotating shaft extends into the interior of the housing and is fitted with a worm gear. A frame is installed on the inner wall of the housing, and the worm gear and the surface of the frame are rotatably engaged. A turbine is provided inside the housing, and the turbine is rotatably engaged with the inner wall of the housing. A lead screw is provided on the surface at the center of the turbine, and the bottom end of the lead screw passes through the housing and the L-shaped frame in sequence and extends to the bottom of the L-shaped frame. The top of the turbine penetrates through the housing and extends into the interior of the fixed cylinder. The turbine and the fixed cylinder are threaded together. The surface of the test frame is fixed to the bottom end of the lead screw. The top of the assembly plate extends into the interior of the mounting frame. A test plate is mounted on the surface at the bottom of the assembly plate. A force sensor is installed inside the test plate. The output end of the force sensor is electrically connected to the input end of the controller. The support plate slides with the surface of the operating table. The running belt body is snapped into the surface of the support plate. A strain gauge is mounted on the surface of the support plate. The output end of the strain gauge is electrically connected to the input end of the controller. A scale is mounted on the surface of the L-shaped frame.

[0007] Preferably, the distance adjustment mechanism consists of a mounting block, an adjustment groove, a fastening bolt, an adjustment block and a rotating ball bearing. An adjustment block is installed on the surface at the bottom of the support plate, and an adjustment groove is provided on the surface of the operating table. The adjustment groove and the surface of the adjustment block slide against each other.

[0008] Preferably, an mounting block is installed on the surface of the adjusting block, and the mounting block is connected to the inner wall of the adjusting groove by fastening bolts. Multiple sets of rotating balls are arranged in an array on the surface of the bottom position of the adjusting block. The rotating balls rotate and cooperate with the surface of the adjusting block, and the surface of the rotating balls contacts the inner wall of the adjusting groove.

[0009] Preferably, the guide anti-skew mechanism consists of a guide post, a guide ring, a guide block, and a guide groove. The surface of the test frame is equipped with a guide ring, and the inner wall of the L-shaped frame is equipped with a guide post. The surfaces of the guide post and the guide ring slide against each other.

[0010] Preferably, guide blocks are symmetrically mounted on the surface of the test frame, and guide grooves are formed on the surface of the L-shaped frame, with the guide grooves slidingly engaging with the surfaces of the guide blocks.

[0011] Preferably, the convenient assembly mechanism includes a fixing groove, a fixing block, an anti-loosening sleeve, and a fastening stud. The fixing block is installed on the surface of the assembly plate, the inner wall of the mounting frame is provided with a fixing groove for sliding cooperation with the fixing block, and the anti-loosening sleeve is installed on the surface of the test frame.

[0012] Preferably, the surface of the anti-loosening sleeve is threaded with a fastening stud, one end of which passes through the anti-loosening sleeve, the test frame and the mounting frame in sequence and is fastened to the surface thread of the assembly plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the running belt strength testing device not only allows the distance between the support plates to be adjusted according to the different sizes of the running belt body, making the testing device more versatile, but also makes it easier for users to assemble the assembly plate onto the surface of the mounting frame inside the testing frame, making the testing device more convenient to operate. Furthermore, the testing device can guide the testing frame and assembly plate when lifting and lowering, making the testing of the running belt body surface more accurate.

[0014] 1. With a distance adjustment mechanism, the user can loosen the fastening bolts on the surface of the mounting block and then pull the support plate, causing the support plate to slide the adjustment block inside the adjustment groove. The adjustment groove and the adjustment block work together to guide the support plate. When the adjustment block slides inside the adjustment groove, the rotating ball will rotate on the surface of the adjustment block. The rotating ball prevents the support plate from getting stuck when adjusting the position. After adjustment, the user can tighten the fastening bolts to fix the support plate on the surface of the operating table. This realizes the function of adjusting the position of the support plate of the testing device, so that the distance between the support plates can be adjusted according to the different sizes of the running belt body, making the testing device more versatile in use.

[0015] 2. With a convenient assembly mechanism, the user places the assembly plate on the surface of the test frame and pushes it upward, causing the assembly plate to slide the fixing block inside the fixing groove. The fixing block and the fixing groove work together to guide the assembly plate. The user then tightens the fastening studs on the surface of the test frame, and the assembly plate is installed on the surface of the mounting frame under the action of the fastening studs. The anti-loosening sleeve can prevent the fastening studs from loosening, making the assembly plate more stable during assembly and use, and convenient for disassembly and assembly operations. This realizes the function of convenient assembly of the test device, making it easy for the user to assemble the assembly plate on the surface of the mounting frame inside the test frame, making the test device more convenient to operate.

[0016] 3. By incorporating a guiding and anti-skew mechanism, the test frame drives the guide ring to slide on the surface of the guide column. Under the combined action of the guide column and the guide ring, the test frame is guided. When the test frame moves, it drives the guide block to slide inside the guide groove. The sliding cooperation between the guide block and the guide groove ensures higher accuracy of the test frame, assembly plate, and test plate when moving downwards, preventing skew and ensuring more accurate test results on the surface of the running belt. This achieves the guiding and anti-skew function of the test device, enabling it to guide the test frame and assembly plate during lifting and lowering, thus making the testing of the running belt surface more accurate during use. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0019] Figure 3 This is a top view cross-sectional structural diagram of the present invention;

[0020] Figure 4 For the present utility model Figure 2 Enlarged schematic diagram of the mid-distance adjustment mechanism;

[0021] Figure 5 For the present utility model Figure 2 Enlarged structural schematic diagram of the center guide anti-skew mechanism;

[0022] Figure 6 For the present utility model Figure 2 An enlarged structural diagram of the assembly mechanism.

[0023] In the diagram: 1. Control panel; 11. Controller; 101. Running belt body; 102. L-shaped frame; 103. Drive motor; 104. Strain gauge; 105. Mounting bracket; 106. Rotating shaft; 107. Fixed cylinder; 108. Lead screw; 109. Housing; 110. Test frame; 111. Assembly plate; 112. Scale; 113. Support plate; 114. Test plate; 115. Force sensor; 116. Worm gear; 117. Frame; 118. Turbine; 2. Distance adjustment mechanism; 21. Mounting block; 22. Adjustment groove; 23. Fastening bolt; 24. Adjustment block; 25. Rotating ball; 3. Guide anti-skew mechanism; 31. Guide column; 32. Guide ring; 33. Guide block; 34. Guide groove; 4. Easy assembly mechanism; 41. Fixed groove; 42. Fixed block; 43. Anti-loosening sleeve; 44. Fastening stud. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0025] The structure of the running belt strength testing device provided by this utility model is as follows: Figure 1 , Figure 2 and Figure 3As shown, the system includes an operating console 1. An L-shaped frame 102 is mounted on the top surface of the operating console 1. A controller 11 (e.g., LA series) is mounted on the surface of the L-shaped frame 102. A housing 109 is mounted on the top surface of the housing 109. A fixing cylinder 107 is mounted on the top surface of the housing 109. A drive motor 103 (e.g., JO series) is mounted on the surface of the housing 109 using screws. The input terminal of the drive motor 103 is electrically connected to the output terminal of the controller 11. The output terminal of the drive motor 103 is connected via a... The shaft assembly is equipped with a rotating shaft 106, one end of which extends into the interior of the housing 109 and is fitted with a worm gear 116. A frame 117 is mounted on the inner wall of the housing 109. The worm gear 116 and the surface of the frame 117 are rotatably engaged. A turbine 118 is disposed inside the housing 109, rotatably engaging with the inner wall of the housing 109. A lead screw 108 is disposed on the surface at the center of the turbine 118. The bottom end of the lead screw 108 passes through the housing 109 and the L-shaped frame 102 and extends below the L-shaped frame 102. The top end of the lead screw 108 passes through the housing 109 and extends to the solid... Inside the fixed cylinder 107, the turbine 118 and the fixed cylinder 107 are threaded together. A test frame 110 is located below the L-shaped frame 102. The surface of the test frame 110 is fixed to the bottom end of the lead screw 108. A mounting bracket 105 is installed on the inner wall of the test frame 110. An assembly plate 111 is located at the bottom of the test frame 110, with its top extending into the interior of the mounting bracket 105. A test plate 114 is mounted on the surface at the bottom of the assembly plate 111. A force sensor 115 is installed inside the test plate 114. The force sensor 115 can be an HBM series model. The output end of the force sensor 115 is electrically connected to the input end of the controller 11. A support plate 113 is provided on the surface of the top position of the operating table 1. The support plate 113 and the surface of the operating table 1 slide against each other. The running belt body 101 is placed on the surface of the support plate 113. The running belt body 101 and the surface of the support plate 113 are engaged with each other. A strain gauge 104 is installed on the surface of the support plate 113. The strain gauge 104 can be of the MHY series. The output end of the strain gauge 104 is electrically connected to the input end of the controller 11. A scale 112 is installed on the surface of the L-shaped frame 102.

[0026] Furthermore, such as Figure 2 and Figure 4As shown, the operating table 1 and the support plate 113 are provided with a distance adjustment mechanism 2. The distance adjustment mechanism 2 consists of a mounting block 21, an adjustment groove 22, a fastening bolt 23, an adjustment block 24, and rotating balls 25. An adjustment block 24 is installed on the surface of the support plate 113 at the bottom position. An adjustment groove 22 is opened on the surface of the operating table 1. The adjustment groove 22 and the surface of the adjustment block 24 slide against each other. An mounting block 21 is installed on the surface of the adjustment block 24. The mounting block 21 and the inner wall of the adjustment groove 22 are connected by a fastening bolt 23. Multiple sets of rotating balls 25 are arranged in an array on the surface of the bottom position of the adjustment block 24. The rotating balls 25 and the surface of the adjustment block 24 rotate against each other. The surface of the rotating balls 25 is in contact with the inner wall of the adjustment groove 22.

[0027] During implementation, the user loosens the fastening bolts 23 on the surface of the mounting block 21 and then pulls the support plate 113, causing the support plate 113 to drive the adjusting block 24 to slide inside the adjusting groove 22. Under the combined action of the adjusting groove 22 and the adjusting block 24, the support plate 113 is guided. When the adjusting block 24 slides inside the adjusting groove 22, the rotating ball 25 will rotate on the surface of the adjusting block 24. Under the action of the rotating ball 25, the support plate 113 will not get stuck when adjusting the position. After the adjustment is completed, the user tightens the fastening bolts 23 to fix the support plate 113 on the surface of the operating table 1, so as to realize the function of adjusting the position of the support plate 113 of the testing device.

[0028] Furthermore, such as Figure 2 and Figure 5 As shown, the surfaces of the L-shaped frame 102 and the test frame 110 are provided with a guide anti-skew mechanism 3. The guide anti-skew mechanism 3 consists of a guide post 31, a guide ring 32, a guide block 33 and a guide groove 34. The surface of the test frame 110 is equipped with a guide ring 32, and the inner wall of the L-shaped frame 102 is equipped with a guide post 31. The surfaces of the guide post 31 and the guide ring 32 slide against each other. The surface of the test frame 110 is symmetrically equipped with guide blocks 33, and the surface of the L-shaped frame 102 is provided with a guide groove 34. The surfaces of the guide groove 34 and the guide block 33 slide against each other.

[0029] During implementation, the test frame 110 drives the guide ring 32 to slide on the surface of the guide post 31. Under the combined action of the guide post 31 and the guide ring 32, the test frame 110 is guided. When the test frame 110 moves, the test frame 110 drives the guide block 33 to slide inside the guide groove 34. The sliding cooperation between the guide block 33 and the guide groove 34 can make the test frame 110, the assembly plate 111 and the test plate 114 more accurate when moving downward, and will not produce a deflection phenomenon, so as to ensure that the detection results of the surface of the running belt body 101 are more accurate, so as to realize the guiding and anti-deflection function of the test device.

[0030] Furthermore, such as Figure 2and Figure 6 As shown, the surfaces of the L-shaped frame 102 and the mounting frame 105 are provided with a convenient assembly mechanism 4. The convenient assembly mechanism 4 includes a fixing groove 41, a fixing block 42, an anti-loosening sleeve 43, and a fastening stud 44. The surface of the assembly plate 111 is equipped with the fixing block 42. The inner wall of the mounting frame 105 is provided with a fixing groove 41 for sliding engagement with the fixing block 42. The surface of the test frame 110 is equipped with an anti-loosening sleeve 43. The surface of the anti-loosening sleeve 43 is threadedly connected to the fastening stud 44. One end of the fastening stud 44 passes through the anti-loosening sleeve 43, the test frame 110, and the mounting frame 105 in sequence and is threadedly fastened to the surface of the assembly plate 111.

[0031] During implementation, the user places the assembly plate 111 on the surface of the test frame 110 and pushes the assembly plate 111 upward, causing the assembly plate 111 to drive the fixing block 42 to slide inside the fixing groove 41. Under the combined action of the fixing block 42 and the fixing groove 41, the assembly plate 111 is guided until the assembly plate 111 can no longer be pushed upward. The user then tightens the fastening studs 44 on the surface of the test frame 110. Under the action of the fastening studs 44, the assembly plate 111 is installed on the surface of the mounting frame 105. Under the action of the anti-loosening sleeve 43, the fastening studs 44 can be prevented from loosening, making the assembly plate 111 more stable during assembly and use, and facilitating disassembly and assembly operations, so as to realize the function of convenient assembly of the test device.

[0032] Working Principle: In use, first place the operating table 1 in the designated position. The user can adjust the distance between the support plates 113 according to the size of the running belt body 101 to be tested. Specifically, the user loosens the fastening bolts 23 on the surface of the mounting block 21, and then pulls the support plate 113, causing the support plate 113 to drive the adjusting block 24 to slide inside the adjusting groove 22. Under the combined action of the adjusting groove 22 and the adjusting block 24, the support plate 113 is guided. When the adjusting block 24 slides inside the adjusting groove 22, the rotating ball 25 will rotate on the surface of the adjusting block 24. Under the action of the rotating ball 25, the support plate 113 will not jam when adjusting its position. After adjustment, the user tightens the fastening bolts 23 to fix the support plate 113 to the surface of the operating table 1, thus realizing the function of adjusting the position of the support plate 113 of the testing device. This allows the testing device to adjust the distance between the support plates 113 according to different sizes of the running belt body 101, making the testing device more versatile in use.

[0033] Subsequently, the user places the running belt body 101 to be tested on the surface of the support plate 113. At this time, the bottom of the running belt body 101 is locked onto the surface of the support plate 113. The user can fix the running belt body 101 to the surface of the support plate 113 for testing according to actual needs through external fixing components. The support plate 113 can support the bottom of the running belt body 101. The user operates the controller 11, so that the controller 11 controls the drive motor 103 to work. Under the action of the drive motor 103, the rotating shaft 106 is driven to rotate. When the rotating shaft 106 rotates, the rotating shaft 106 drives the worm gear 116 to rotate on the surface of the frame 117. Under the meshing action of the worm gear 116 and the worm wheel 118, the worm wheel 118 is driven to rotate inside the housing 109. When the worm wheel 118 rotates, under the threaded engagement of the worm wheel 118 and the lead screw 108, the lead screw 108 is driven to move up and down. When the lead screw 108 moves to the left and right, the worm wheel 118 moves up and down. During the downward movement, the lead screw 108 drives the test frame 110, assembly plate 111, and test plate 114 to move downward. Under the action of the test plate 114, a certain force is applied to the surface of the running belt body 101. Under the action of the force sensor 115, the force applied by the test plate 114 is monitored, and the monitoring result is displayed on the surface of the controller 11. When the surface of the running belt body 101 is deformed by force, the strain gauge 104 can measure the strain change of the running belt body 101 during the bending deformation process and convert the result into an electrical signal and send it to the controller 11. By observing the controller 11, the user can obtain the surface strength of the running belt body 101. After the test is completed, the lead screw 108 drives the test frame 110, assembly plate 111, and test plate 114 to move upward for reset. The user pulls the running belt body 101 upward to remove the running belt body 101 from the surface of the support plate 113, and repeats the operation.

[0034] Subsequently, when assembling the assembly plate 111, the user places the assembly plate 111 on the surface of the test frame 110 and pushes it upwards, causing the assembly plate 111 to drive the fixing block 42 to slide inside the fixing groove 41. Under the combined action of the fixing block 42 and the fixing groove 41, the assembly plate 111 is guided until it can no longer be pushed upwards. The user then tightens the fastening studs 44 on the surface of the test frame 110. Under the action of the fastening studs 44, the assembly plate 111 is installed on the surface of the mounting bracket 105. The anti-loosening sleeve 43 can prevent the fastening studs 44 from loosening, making the assembly plate 111 more stable during assembly and use, and facilitating disassembly and assembly operations. This realizes the function of easy assembly of the test device, making it convenient for the user to assemble the assembly plate 111 on the surface of the mounting bracket 105 inside the test frame 110, making the test device more convenient to operate.

[0035] Subsequently, when the lead screw 108 drives the test frame 110 and the assembly plate 111 to move downward, the test frame 110 drives the guide ring 32 to slide on the surface of the guide post 31. Under the combined action of the guide post 31 and the guide ring 32, the test frame 110 is guided. When the test frame 110 moves, the test frame 110 drives the guide block 33 to slide inside the guide groove 34. The sliding cooperation between the guide block 33 and the guide groove 34 can make the test frame 110, the assembly plate 111 and the test plate 114 more accurate when moving downward, and will not produce a deflection phenomenon. This ensures that the test results on the surface of the running belt body 101 are more accurate, so as to realize the guiding and anti-deflection function of the test device. Thus, when the test device is used, it can guide the test frame 110 and the assembly plate 111 when they are raised and lowered, making the test on the surface of the running belt body 101 more accurate when the test device is used, and finally completing the use of the strength test device.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A running belt strength testing device, comprising an operating table (1), characterized in that: An L-shaped frame (102) is mounted on the top surface of the operating table (1). A controller (11) is mounted on the surface of the L-shaped frame (102). A housing (109) is mounted on the top surface of the L-shaped frame (102). A test frame (110) is provided below the L-shaped frame (102). An installation frame (105) is mounted on the inner wall of the test frame (110). An assembly plate (111) is provided at the bottom of the test frame (110). A support plate (113) is provided on the top surface of the operating table (1). A running belt body (101) is placed on the surface of the support plate (113). A distance adjustment mechanism (2) is provided on the surface of the operating table (1) and the support plate (113). A guide and anti-skew mechanism (3) is provided on the surface of the L-shaped frame (102) and the test frame (110). A convenient assembly mechanism (4) is provided on the surface of the L-shaped frame (102) and the installation frame (105).

2. The treadmill belt strength testing device according to claim 1, characterized in that: A fixing cylinder (107) is installed on the surface of the top of the housing (109). A drive motor (103) is installed on the surface of the housing (109) by screws. The input end of the drive motor (103) is electrically connected to the output end of the controller (11). A rotating shaft (106) is installed on the output end of the drive motor (103) through a coupling. One end of the rotating shaft (106) extends into the interior of the housing (109) and is fitted with a worm gear (116). The inner wall of the housing (109) A frame (117) is installed, and the worm gear (116) rotates with the surface of the frame (117). A turbine (118) is installed inside the housing (109), and the turbine (118) rotates with the inner wall of the housing (109). A lead screw (108) is installed on the surface at the center of the turbine (118). The bottom end of the lead screw (108) passes through the housing (109) and the L-shaped frame (102) and extends to the bottom of the L-shaped frame (102). The top of the 08) penetrates through the housing (109) and extends into the interior of the fixed cylinder (107). The turbine (118) and the fixed cylinder (107) are threaded together. The surface of the test frame (110) is fixed to the bottom end of the lead screw (108). The top of the assembly plate (111) extends into the interior of the mounting frame (105). A test plate (114) is mounted on the surface at the bottom of the assembly plate (111). A force sensor (115) is installed inside the test plate (114). The output end of the force sensor (115) is electrically connected to the input end of the controller (11). The support plate (113) and the surface of the operating table (1) slide against each other. The running belt body (101) and the surface of the support plate (113) are engaged with each other. A strain gauge (104) is installed on the surface of the support plate (113). The output end of the strain gauge (104) is electrically connected to the input end of the controller (11). A scale (112) is installed on the surface of the L-shaped frame (102).

3. The treadmill belt strength testing device according to claim 1, characterized in that: The distance adjustment mechanism (2) consists of a mounting block (21), an adjustment groove (22), a fastening bolt (23), an adjustment block (24), and a rotating ball (25). An adjustment block (24) is installed on the surface of the bottom of the support plate (113). An adjustment groove (22) is provided on the surface of the operating table (1). The adjustment groove (22) and the surface of the adjustment block (24) slide against each other.

4. The treadmill belt strength testing device according to claim 3, characterized in that: The surface of the adjusting block (24) is equipped with an mounting block (21), and the mounting block (21) is connected to the inner wall of the adjusting groove (22) by fastening bolts (23). The surface of the bottom position of the adjusting block (24) is provided with multiple sets of rotating balls (25), and the rotating balls (25) rotate and cooperate with the surface of the adjusting block (24). The surface of the rotating balls (25) is in contact with the inner wall of the adjusting groove (22).

5. The treadmill belt strength testing device according to claim 1, characterized in that: The guide anti-skew mechanism (3) is composed of a guide post (31), a guide ring (32), a guide block (33) and a guide groove (34). The surface of the test frame (110) is equipped with a guide ring (32), and the inner wall of the L-shaped frame (102) is equipped with a guide post (31). The surfaces of the guide post (31) and the guide ring (32) slide against each other.

6. The treadmill belt strength testing device according to claim 1, characterized in that: The test frame (110) has guide blocks (33) symmetrically installed on its surface, and the L-shaped frame (102) has guide grooves (34) on its surface. The guide grooves (34) and the surfaces of the guide blocks (33) slide against each other.

7. The treadmill belt strength testing device according to claim 1, characterized in that: The convenient assembly mechanism (4) includes a fixing groove (41), a fixing block (42), an anti-loosening sleeve (43), and a fastening stud (44). The fixing block (42) is installed on the surface of the assembly plate (111). The inner wall of the mounting bracket (105) is provided with a fixing groove (41) for sliding cooperation with the fixing block (42). The anti-loosening sleeve (43) is installed on the surface of the test bracket (110).

8. The treadmill belt strength testing device according to claim 7, characterized in that: The surface of the anti-loosening sleeve (43) is threaded with a fastening stud (44), one end of which passes through the anti-loosening sleeve (43), the test frame (110) and the mounting frame (105) in sequence and is fastened to the surface of the assembly plate (111) by the thread.

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