A load resisting testing machine
Patent Information
- Application Number
- CN202522455569.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-19
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-19
AI Technical Summary
The current load-bearing test of water supply appliances mostly relies on manual labor and simple tools, which results in high labor intensity, inability to accurately control the magnitude, frequency and duration of force, and difficulty in meeting the test accuracy requirements of national standards.
Design a load-bearing testing machine, comprising a main body, a first testing mechanism, and a second testing mechanism. The test specimen is held by a pneumatic gripper, a torque sensor detects the torque, and a tension sensor detects the tension. Combined with a servo motor and a worm gear reducer, it achieves automated and precise adjustment to adapt to the fixing requirements of different test specimens.
It enables accurate testing of the load-bearing performance of water supply appliances, improves testing accuracy and efficiency, adapts to the testing needs of various types of specimens, and enhances the versatility and flexibility of the equipment.
Smart Images
Figure CN224933634U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of load resistance testing technology, specifically a load resistance testing machine. Background Technology
[0002] In the bathroom and plumbing industry, showerheads, faucets, thermostatic faucets, angle valves, hoses, and non-contact water supply appliances are core products closely related to daily water use. Their mechanical properties and structural stability directly determine their safety and service life. To ensure that products meet national standards, they must pass a "load resistance test" before leaving the factory.
[0003] Based on the above, the inventors have discovered the following problems: In the existing load-bearing test of water supply appliances, most small and medium-sized enterprises rely on the test mode of "manual labor + simple tooling". For example, manual pressing of the shower button is used to complete the reciprocating test, and torque is applied manually with a wrench to verify the thread strength. This method is not only labor-intensive, but also cannot accurately control the magnitude, frequency and duration of the force, resulting in large deviations in the test results and making it difficult to meet the national standards for test accuracy.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings to provide a load-bearing testing machine, in order to achieve a more practical value. Utility Model Content
[0005] The purpose of this utility model is to provide a load-bearing testing machine to solve the problem mentioned in the background art that most small and medium-sized enterprises rely on the "manual + simple tooling" testing mode in the existing load-bearing testing of water supply appliances.
[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:
[0007] A load-bearing testing machine includes a main body, a first testing mechanism, and a second testing mechanism. The main body includes a frame, and a mounting bracket is fixedly installed on one side of the upper end of the frame. The first testing mechanism includes a pair of slide rods, which are disposed inside the mounting bracket. A movable plate is slidably mounted between the slide rods. A torque sensor is mounted on the bottom side of the movable plate. A pneumatic gripper is fixedly mounted on the bottom end of the main shaft of the torque sensor. Both moving ends of the pneumatic gripper are rotatably connected to clamping blocks via damping shafts. A mounting guide rail is fitted onto the upper end of the main shaft of the torque sensor located on the pneumatic gripper. The second testing mechanism includes an adjustment box, which is disposed inside the mounting bracket on the other side. A groove is formed on one side of the mounting bracket. A movable block is slidably mounted inside the groove. A tension sensor is fixedly mounted on the bottom end of the movable block. A pull hook is fixedly mounted on the bottom end of the tension sensor.
[0008] Furthermore, the first test mechanism also includes a pair of fixed frames, which are respectively connected to the upper and lower ends of the inner side of the mounting frame. A first lead screw is rotatably connected between the pair of fixed frames. The first lead screw is threadedly connected to the moving plate. A handwheel is rotatably connected to the top of one of the fixed frames, and the bottom center shaft of the handwheel is connected to the top of the first lead screw.
[0009] The advantages of adopting the above-mentioned further solution are that rotating the handwheel drives the first lead screw to rotate, and through the threaded transmission, the moving plate is driven to rise and fall along the slide bar, which precisely adjusts the height of the pneumatic gripper to adapt to the clamping requirements of specimens of different sizes; manual adjustment is convenient, and the lifting and lowering are stable and the positioning is accurate.
[0010] Furthermore, a first worm gear reducer is fixedly installed on one side of the upper end of the movable plate. The output end of the first worm gear reducer is connected to the main shaft of the torque sensor. A first servo motor is fixedly installed on one side of the first worm gear reducer. The output end of the first servo motor is connected to the input end of the first worm gear reducer.
[0011] The beneficial effect of adopting the above-mentioned further solution is that, after the speed and torque of the first servo motor are adjusted by the first worm gear reducer, it drives the main shaft of the torque sensor to rotate, providing stable and controllable power for torque testing; the servo motor and the reducer work together to ensure accurate torque output and improve the accuracy of test data.
[0012] Furthermore, a second lead screw is rotatably connected inside the adjustment box, and optical rods are fixedly installed on both sides of the second lead screw inside the adjustment box. A slider is threaded onto the second lead screw, and both ends of the slider are slidably connected to a pair of optical rods. One end of the slider is fixedly connected to one end of the moving block.
[0013] The beneficial effect of adopting the above-mentioned further solution is that the rotation of the second lead screw drives the slider to slide along the smooth rod, and then drives the tension sensor and the hook to rise and fall through the moving block, so as to apply tension to the water supply appliance; the smooth rod ensures that the slider moves smoothly and avoids deviation from affecting the test accuracy.
[0014] Furthermore, a second worm gear reducer is fixedly installed on the top of the regulating box. The output end of the second worm gear reducer is connected to the second lead screw drive. A second servo motor is fixedly installed on one side of the second worm gear reducer. The output end of the second servo motor is drively connected to the input end of the second worm gear reducer.
[0015] The beneficial effects of adopting the above-mentioned further solution are that the second servo motor and the second worm gear reducer work together to provide stable power to the second lead screw, realizing the automated and precise adjustment of the tensile testing mechanism; the power output is controllable, adapting to the speed and stroke requirements of different tensile tests, and improving testing efficiency.
[0016] Furthermore, telescopic dust covers are fixedly installed at both the upper and lower ends of the movable block, and the opposite ends of a pair of telescopic dust covers are respectively fixedly connected to the upper and lower ends of the slide groove.
[0017] The beneficial effects of adopting the above-mentioned further solution are that the telescopic dust cover extends and retracts with the moving block, covering the inside of the slide groove, preventing dust and impurities from entering and affecting the movement of the sliding parts, extending the service life of the equipment, and ensuring the smooth operation of the testing mechanism.
[0018] Furthermore, a pair of support frames are fixedly installed on the upper end face of the platform on one side of the mounting frame. A pair of first adjustment frames and a pair of second adjustment frames are respectively installed between the pair of support frames by bolts. Fuma wheels are fixedly installed on both sides of the bottom end of the platform.
[0019] The beneficial effects of adopting the above-mentioned further solution are that the first and second adjustment frames on the support frame can be adjusted in installation position by bolts to adapt to the fixing requirements of different specimens; the fuma wheels facilitate the overall movement and fixing of the equipment, improve the flexibility of equipment placement, and adapt to different laboratory scenarios.
[0020] Furthermore, a first positioning mounting plate is bolted to the upper end of each of the first adjusting frames, a third adjusting frame is bolted to the inner side of one of the first adjusting frames, a fourth adjusting frame is bolted between a pair of second adjusting frames, a second positioning mounting plate is bolted to the upper end of the fourth adjusting frame, and an angle valve mounting plate is bolted to the inner side of one of the second adjusting frames.
[0021] The beneficial effect of adopting the above-mentioned further solution is that the first positioning mounting plate, the second positioning mounting plate, the third adjusting bracket and the angle valve mounting plate can be flexibly installed by bolts, which facilitates the installation of water supply appliances with different switch positions. Users can insert the water inlet of the water supply appliance into the corresponding holes of the first positioning mounting plate, the second positioning mounting plate, the third adjusting bracket and the angle valve mounting plate, and fix it with nuts, so as to achieve stable fixing of water supply appliances of various specifications and types, and improve the versatility of the test equipment.
[0022] Furthermore, a display bracket is fixedly mounted on the upper side of one side of the mounting bracket, and a touch screen controller is mounted on one end of the display bracket.
[0023] The advantages of adopting the above-mentioned further solution are that the touch screen controller is installed at one end of the monitor bracket, which makes it convenient for operators to set test parameters and view tensile and torque data in real time; the visual operation interface is intuitive and convenient, improving the efficiency of test operation and the accuracy of data recording.
[0024] Compared with the prior art, the beneficial effects of this utility model are as follows: The main frame of this load-bearing testing machine provides a stable installation foundation for the testing mechanism, and the mounting frame integrates the first and second testing mechanisms; the pneumatic grippers of the first testing mechanism, in conjunction with the clamping blocks, hold the knobs of the water supply appliances, and the torque sensor detects the torque data; the hooks of the second testing mechanism, in conjunction with the tension sensor, can hook the water supply appliances to detect the tension data, thereby realizing dual testing of torque and tension for load resistance, adapting to the load resistance performance testing needs of various specimens; the first and second adjustment frames on the support frame can be adjusted in installation position by bolts to adapt to the fixing requirements of different specimens; the casters facilitate the overall movement and fixing of the equipment, improving the flexibility of equipment placement and adapting to different laboratory scenarios; the first positioning mounting plate, the second positioning mounting plate, the third adjustment frame, and the angle valve mounting plate can be flexibly installed by bolts, facilitating the installation of water supply appliances with different switch positions, realizing the stable fixing of multiple specifications and types of water supply appliances, and improving the versatility of the testing equipment. Attached Figure Description
[0025] Figure 1 This is a three-dimensional structural diagram of the load-bearing testing machine disclosed in an embodiment of the present invention. Figure 1 ;
[0026] Figure 2 This is a three-dimensional structural diagram of the load-bearing testing machine disclosed in an embodiment of the present invention. Figure 2 ;
[0027] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the load-bearing testing machine disclosed in the embodiments of this utility model. Figure 1 ;
[0028] Figure 4 This is a schematic diagram of the internal three-dimensional structure of the load-bearing testing machine disclosed in the embodiments of this utility model. Figure 2 ;
[0029] Figure 5 The load-bearing testing machine disclosed in this utility model embodiment Figure 2 An enlarged schematic diagram of the A structure.
[0030] In the diagram: 1. Main body; 101. Stand; 102. Fountain wheel; 103. Support frame; 104. First adjusting frame; 105. Second adjusting frame; 106. First positioning mounting plate; 107. Fourth adjusting frame; 108. Second positioning mounting plate; 109. Mounting frame; 110. Third adjusting frame; 111. Angle valve mounting plate; 2. First testing mechanism; 201. Fixed frame; 202. Slide rod; 203. First lead screw; 204. Handwheel; 205. First worm gear reducer; 2 06. Moving plate; 207. First servo motor; 208. Torque sensor; 209. Mounting guide rail; 210. Pneumatic gripper; 211. Clamping block; 3. Second test mechanism; 301. Adjustment box; 302. Second worm gear reducer; 303. Second servo motor; 304. Slide groove; 305. Tension sensor; 306. Hook; 307. Second lead screw; 308. Smooth rod; 309. Slider; 311. Moving block; 312. Telescopic dust cover; 4. Touch screen controller. Detailed Implementation
[0031] 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, and not 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 effort are within the protection scope of the present utility model.
[0032] Please see Figure 1 - Figure 5 This utility model provides a technical solution: a load-bearing testing machine, comprising a main body 1, a first testing mechanism 2, and a second testing mechanism 3. The main body 1 includes a frame 101, and a mounting bracket 109 is fixedly installed on one side of the upper end of the frame 101. The first testing mechanism 2 includes a pair of slide rods 202, which are disposed inside the mounting bracket 109. A movable plate 206 is slidably installed between the pair of slide rods 202. A torque sensor 208 is installed on the bottom side of the movable plate 206, and a pneumatic gripper 210 is fixedly installed on the bottom end of the spindle of the torque sensor 208. Both moving ends of the pneumatic gripper 210 are rotatably connected to gripping blocks 211 via damping shafts. The main shaft of the torque sensor 208 is located at the upper end of the pneumatic gripper 210 and is fitted with a mounting guide rail 209. The second test mechanism 3 includes an adjustment box 301, which is located on the other side of the inside of the mounting frame 109. A slide groove 304 is provided on one side of the mounting frame 109. A moving block 311 is slidably installed inside the slide groove 304. A tension sensor 305 is fixedly installed at the bottom end of the moving block 311, and a pull hook 306 is fixedly installed at the bottom end of the tension sensor 305.
[0033] As an embodiment of this utility model, the first test mechanism 2 further includes a pair of fixed frames 201. The pair of fixed frames 201 are respectively connected to the upper and lower ends of the inner side of the mounting frame 109. A first lead screw 203 is rotatably connected between the pair of fixed frames 201. The first lead screw 203 is threadedly connected to the moving plate 206. A handwheel 204 is rotatably connected to the top of one of the fixed frames 201. The bottom center shaft of the handwheel 204 is connected to the top of the first lead screw 203. Rotating the handwheel 204 drives the first lead screw 203 to rotate, and through the threaded transmission, drives the moving plate 206 to rise and fall along the slide bar 202, accurately adjusting the height of the pneumatic gripper 210 to adapt to the clamping requirements of specimens of different sizes. The manual adjustment operation is convenient, the lifting is stable and the positioning is accurate.
[0034] As one embodiment of this utility model, a first worm gear reducer 205 is fixedly installed on one side of the upper end of the movable plate 206. The output end of the first worm gear reducer 205 is connected to the main shaft of the torque sensor 208 via a transmission connection. A first servo motor 207 is fixedly installed on one side of the first worm gear reducer 205. The output end of the first servo motor 207 is connected to the input end of the first worm gear reducer 205 via a transmission connection. After the speed and torque of the first servo motor 207 are adjusted by the first worm gear reducer 205, it drives the main shaft of the torque sensor 208 to rotate, providing stable and controllable power for torque testing. The servo motor and the reducer work together to ensure accurate torque output and improve the accuracy of test data.
[0035] As an embodiment of this utility model, a second lead screw 307 is rotatably connected inside the regulating box 301. Smooth rods 308 are fixedly installed on both sides of the second lead screw 307 inside the regulating box 301. A slider 309 is threaded onto the second lead screw 307. Both ends of the slider 309 are slidably connected to a pair of smooth rods 308. One end of the slider 309 is fixedly connected to one end of the moving block 311. The rotation of the second lead screw 307 causes the slider 309 to slide along the smooth rods 308, thereby causing the tension sensor 305 and the hook 306 to rise and fall through the moving block 311, applying tension to the water supply appliance. The smooth rods 308 ensure the smooth movement of the slider 309, preventing deviation from affecting the test accuracy.
[0036] As one embodiment of this utility model, a second worm gear reducer 302 is fixedly installed on the top of the adjusting box 301. The output end of the second worm gear reducer 302 is connected to the second lead screw 307. A second servo motor 303 is fixedly installed on one side of the second worm gear reducer 302. The output end of the second servo motor 303 is connected to the input end of the second worm gear reducer 302. The second servo motor 303 and the second worm gear reducer 302 cooperate to provide stable power to the second lead screw 307, realizing the automated and precise adjustment of the tensile testing mechanism. The power output is controllable, adapting to the speed and stroke requirements of different tensile tests, and improving the testing efficiency.
[0037] As an embodiment of this utility model, telescopic dust covers 312 are fixedly installed at both the upper and lower ends of the movable block 311. The opposite ends of a pair of telescopic dust covers 312 are fixedly connected to the upper and lower ends of the slide groove 304, respectively. The telescopic dust covers 312 extend and retract with the movable block 311, covering the inside of the slide groove 304 to prevent dust and impurities from entering and affecting the movement of the sliding parts, extending the service life of the equipment, and ensuring the smooth operation of the testing mechanism.
[0038] As an embodiment of this utility model, a pair of support frames 103 are fixedly installed on the upper end face of the platform 101 on one side of the mounting frame 109. A pair of first adjustment frames 104 and a pair of second adjustment frames 105 are respectively installed between the pair of support frames 103 by bolts. Both sides of the bottom end of the platform 101 are fixedly installed with casters 102. The first adjustment frames 104 and the second adjustment frames 105 on the support frames 103 can be adjusted in position by bolts to adapt to the fixing requirements of different test pieces. The casters 102 facilitate the overall movement and fixing of the equipment, improve the flexibility of equipment placement, and adapt to different laboratory scenarios.
[0039] As an embodiment of this utility model, further, the upper end of each of the first adjusting frames 104 is bolted with a first positioning mounting plate 106, the inner side of one of the first adjusting frames 104 is bolted with a third adjusting frame 110, a fourth adjusting frame 107 is bolted between a pair of second adjusting frames 105, the upper end of the fourth adjusting frame 107 is bolted with a second positioning mounting plate 108, the inner side of one of the second adjusting frames 105 is bolted with an angle valve mounting plate 111, the first positioning mounting plate 106, the second positioning mounting plate 108, the third adjusting frame 110 and the angle valve mounting plate 111 are flexibly installed with bolts, which facilitates the installation of water supply appliances with different switch positions, realizes the stable fixing of multiple specifications and types of water supply appliances, and improves the versatility of the test equipment.
[0040] As an embodiment of this utility model, a display bracket is fixedly installed on the upper side of one side of the mounting bracket 109, and a touch screen controller 4 is installed on one end of the display bracket. The touch screen controller 4 is installed on one end of the display bracket, which makes it convenient for operators to set test parameters and view tensile and torque data in real time. The visual operation interface is intuitive and convenient, improving the efficiency of test operation and the accuracy of data recording.
[0041] Specifically, the working principle of this load-bearing testing machine is as follows: During use, the equipment is first moved to the target position and fixed using the fuma wheel 102. Based on the specifications and switch position of the water supply appliance, the installation positions of the first adjustment frame 104, the second adjustment frame 105, the third adjustment frame 110, and the fourth adjustment frame 107 are adjusted. The specimen is then stably fixed using the first positioning mounting plate 106, the second positioning mounting plate 108, or the angle valve mounting plate 111. Test parameters are set via the touchscreen controller 4. Turning the handwheel 204 drives the first lead screw 203 to rotate, causing the moving plate 206 to rise and fall along the slide rod 202, aligning the pneumatic gripper 210 with the specimen knob and clamping it in place. The clamping block 211... The damping shaft is adapted to the shape of the knob; the first servo motor 207 is started, and after being adjusted by the first worm gear reducer 205, it drives the main shaft of the torque sensor 208 to rotate, which drives the knob of the test piece to rotate back and forth, to perform torque test and provide real-time feedback data; during the tensile test, the second servo motor 303 drives the second lead screw 307 to rotate through the second worm gear reducer 302, which drives the slider 309 to slide along the smooth rod 308, and drives the tensile sensor 305 and the hook 306 to rise and fall through the moving block 311. The hook 306 hooks the test piece to apply tensile force and detect data. The telescopic dust cover 312 protects the internal components of the slide groove 304. The whole system achieves accurate detection of the load resistance performance of the water supply appliance through dual tests.
[0042] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, this application will not explain the control method and circuit connection in detail.
Claims
1. A load-bearing testing machine, characterized in that, The test includes a main body (1), a first test mechanism (2), and a second test mechanism (3). The main body (1) includes a frame (101), and a mounting bracket (109) is fixedly installed on one side of the upper end of the frame (101). The first test mechanism (2) includes a pair of slide rods (202), which are located inside the mounting bracket (109). A movable plate (206) is slidably installed between the pair of slide rods (202). A torque sensor (208) is installed on the bottom side of the movable plate (206). A pneumatic gripper (210) is fixedly installed at the bottom end of the spindle of the torque sensor (208). The two sides of the pneumatic gripper (210) are connected to the main body (1). Each moving end is rotatably connected to a clamping block (211) via a damping shaft. The main shaft of the torque sensor (208) is located on the upper end of the pneumatic gripper (210) and is fitted with an installation guide rail (209). The second test mechanism (3) includes an adjustment box (301), which is located on the other side of the inside of the mounting frame (109). A sliding groove (304) is provided on one side of the mounting frame (109). A moving block (311) is slidably installed inside the sliding groove (304). A tension sensor (305) is fixedly installed at the bottom of the moving block (311), and a hook (306) is fixedly installed at the bottom of the tension sensor (305).
2. The load-bearing testing machine according to claim 1, characterized in that, The first test mechanism (2) further includes a pair of fixed frames (201), which are respectively connected to the upper and lower ends of the inner side of the mounting frame (109). A first lead screw (203) is rotatably connected between the pair of fixed frames (201). The first lead screw (203) is threadedly connected to the moving plate (206). A handwheel (204) is rotatably connected to the top of one of the fixed frames (201). The bottom center axis of the handwheel (204) is connected to the top of the first lead screw (203).
3. The load-bearing testing machine according to claim 1, characterized in that, A first worm gear reducer (205) is fixedly installed on one side of the upper end of the movable plate (206). The output end of the first worm gear reducer (205) is connected to the main shaft of the torque sensor (208). A first servo motor (207) is fixedly installed on one side of the first worm gear reducer (205). The output end of the first servo motor (207) is connected to the input end of the first worm gear reducer (205).
4. The load-bearing testing machine according to claim 1, characterized in that, The adjustment box (301) is rotatably connected to a second lead screw (307). Inside the adjustment box (301), there are two fixedly installed light rods (308) on both sides of the second lead screw (307). A slider (309) is threaded onto the second lead screw (307). The two ends of the slider (309) are slidably connected to a pair of light rods (308) respectively. One end of the slider (309) is fixedly connected to one end of the moving block (311).
5. A load-bearing testing machine according to claim 4, characterized in that, A second worm gear reducer (302) is fixedly installed on the top of the regulating box (301). The output end of the second worm gear reducer (302) is connected to the second lead screw (307). A second servo motor (303) is fixedly installed on one side of the second worm gear reducer (302). The output end of the second servo motor (303) is connected to the input end of the second worm gear reducer (302).
6. The load-bearing testing machine according to claim 1, characterized in that, The upper and lower ends of the movable block (311) are fixedly installed with telescopic dust covers (312), and the opposite ends of the pair of telescopic dust covers (312) are fixedly connected to the upper and lower ends of the slide groove (304).
7. The load-bearing testing machine according to claim 1, characterized in that, A pair of support frames (103) are fixedly installed on the upper end face of the platform (101) on one side of the mounting frame (109). A pair of first adjustment frames (104) and a pair of second adjustment frames (105) are respectively installed between the pair of support frames (103) by bolts. Fuma wheels (102) are fixedly installed on both sides of the bottom end of the platform (101).
8. A load-bearing testing machine according to claim 7, characterized in that, A first positioning mounting plate (106) is bolted to the upper end of each pair of first adjustment frames (104). A third adjustment frame (110) is bolted to the inner side of one of the first adjustment frames (104). A fourth adjustment frame (107) is bolted between a pair of second adjustment frames (105). A second positioning mounting plate (108) is bolted to the upper end of the fourth adjustment frame (107). An angle valve mounting plate (111) is bolted to the inner side of one of the second adjustment frames (105).
9. A load-bearing testing machine according to claim 1, characterized in that, A display bracket is fixedly installed on one side of the upper end of the mounting bracket (109), and a touch screen controller (4) is installed on one end of the display bracket.