Load test device for door and window pulley

Abstract

The utility model relates to the technical field of load test, and discloses a load test device for a door and window pulley, which comprises a base, the middle of the upper side of the base is rotatably connected with a turntable, the upper side of the base is fixedly connected with a U-shaped frame corresponding to the outer side of the turntable, and the interiors of the left end and the right end of the U-shaped frame are fixedly connected with first limiting rods. First springs are arranged outside the first limiting rods, a first electric push rod is fixedly connected to the middle of the upper end of the U-shaped frame, and a lifting plate is fixedly connected to the lower end of the first electric push rod. According to the pulley detection device, the clamping plates move towards the middle to clamp the pulley and cooperate with the magnets to fix the pulley, detection is facilitated, the pulley detection device can be suitable for pulleys of different sizes and models, the practicability of the device is improved, the pulley is covered with the protective cover, the cabinet door and the protective partition plate for detection, and the safety of the detection process is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of load-bearing experiments, in particular to a load-bearing testing device for door and window pulleys. Background Art

[0002] In the field of doors and windows, the widely used window types include casement windows and sliding doors and windows. Among them, sliding doors and windows are widely used because they are easy to open and close, do not take up space, and are economical. The structure of sliding doors and windows includes a frame and a movable leaf. The movable leaf is set in the window of the frame and can slide in the frame. The pulley generally needs to be tested for load after production, mainly by using a load testing machine to test the walking load performance of the pulley.

[0003] After searching, the load-bearing device for caster durability test with announcement number CN219244976U includes a test bench, a mounting assembly and a protective assembly, and a hydraulic cylinder for pressure testing fixedly mounted on the top of the test bench, and the mounting assembly includes a movable plate movably mounted at the center of the upper part of the test bench. The load-bearing device for caster durability test described in the utility model, the positioning grooves provided at the bottom of the movable plate in the test bench, the positioning holes provided at the four corners of the upper end of the positioning grooves corresponding to the mounting holes on the upper part of the casters, and the positioning columns driven by the bottom of the hydraulic cylinder can be used for the rapid installation and disassembly of casters in the load-bearing durability test of casters, so as to solve the inconvenience of assembly and disassembly in the caster load-bearing durability test by fixing with screws. The electric push rod installed at the front end of the hydraulic cylinder on the top of the test bench and the protective plate driven by the bottom at the front end of the movable plate can also provide safety protection for the casters in the rear test during the test, so as to avoid the problem of flying collapse after damage in the caster test.

[0004] Based on the above patent, the positioning groove opened at the bottom of the movable plate in the test bench and the positioning holes set at the four corners of the upper end of the positioning groove corresponding to the upper mounting holes of the casters, as well as the positioning column driven by the bottom of the hydraulic cylinder, can be used for the rapid installation and disassembly of casters in the caster load-bearing durability test. However, it can only be applied to one type of caster for testing, and its practicality is low. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a load-bearing test device for door and window pulleys, which can be applicable to pulleys of different sizes and models, and effectively improves the practicability of the device.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A load-bearing test device for a door and window pulley comprises a base, wherein the middle part of the upper side of the base is rotatably connected to a turntable, the upper side of the base is fixedly connected to a U-shaped frame corresponding to the outer side of the turntable, the left and right ends of the U-shaped frame are fixedly connected to a first limit rod, the outside of the first limit rod is provided with a first spring, the middle part of the upper end of the U-shaped frame is fixedly connected to a first electric push rod, the lower end of the first electric push rod is fixedly connected to a lifting plate, the left and right ends of the lifting plate are respectively slidably connected to the outside of the first limit rod, the lower side of the middle part of the lifting plate is fixedly connected to a magnet, the lower side of the lifting plate is provided with a slide groove corresponding to the left and right sides of the magnet, the inside of the slide groove is fixedly connected to a second limit rod, the outside of the second limit rod is slidably connected to a slider, the outside of the second limit rod is provided with a second spring corresponding to the opposite side of the slider, the lower side of the slider is fixedly connected to a clamping plate, the lifting plate is connected to the clamping plate through a driving component, and the outside of the base is fixedly connected to a protective component.

[0008] Furthermore, the driving assembly includes slide rails at the left and right ends of the inner side of the lifting plate, the outer sides of the slide rails are slidably connected to a pushing frame, the upper side of the rear end of the pushing frame is fixedly connected to a connecting block, and the front side of the connecting block is fixedly connected to a second electric push rod.

[0009] Furthermore, the protection component includes a protection cover outside the base, the upper front end of the protection cover is provided with an opening, the interior of the opening is slidably connected to a protection partition, and the front side of the protection cover is rotatably connected to a cabinet door.

[0010] Furthermore, opposite sides of the slide rails are respectively fixedly connected to the inner sides of the lifting plates.

[0011] Furthermore, the outer side of the pushing frame is tightly matched with the inner side of the lifting plate.

[0012] Furthermore, the front end of the second electric push rod is fixedly connected to the middle part of the rear side of the lifting plate.

[0013] Furthermore, the lower end of the protective cover is fixedly connected to the upper side of the base.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the second electric push rod is provided to drive the push frame to move forward, thereby driving the clamping plate to move toward the middle, clamping the pulley, cooperating with the magnet to fix the pulley, which is convenient for detection and can be applied to pulleys of different sizes and models, thereby improving the practicality of the device.

[0016] 2. In the utility model, the pulley cover is inspected internally by the protective cover and the cabinet door, so as to maintain the safety of the inspection process. The protective partition is moved downward by the provided protective partition to block the pulley at the rear side, so as to further improve the safety of the inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an overall schematic diagram of a load-bearing test device for door and window pulleys proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of a load-bearing test device for door and window pulleys proposed by the utility model;

[0019] Figure 3 A schematic diagram of a push frame of a load-bearing test device for door and window pulleys proposed by the utility model;

[0020] Figure 4 A schematic diagram of a magnet for a load-bearing test device for door and window pulleys proposed in the utility model;

[0021] Figure 5 The utility model discloses a schematic diagram of a slideway of a load-bearing test device for door and window pulleys.

[0022] Legend:

[0023] 1. Base; 2. Turntable; 3. U-shaped frame; 4. First limit rod; 5. First spring; 6. First electric push rod; 7. Lifting plate; 8. Magnet; 9. Slide groove; 10. Second limit rod; 11. Sliding block; 12. Second spring; 13. Clamp; 14. Slide rail; 15. Push frame; 16. Connecting block; 17. Second electric push rod; 18. Protective cover; 19. Opening; 20. Protective partition; 21. Cabinet door. DETAILED DESCRIPTION

[0024] 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.

[0025] Reference Figure 1-5The utility model provides an embodiment: a load-bearing test device for a door and window pulley, comprising a base 1, a turntable 2 is rotatably connected to the middle part of the upper side of the base 1, a U-shaped frame 3 is fixedly connected to the outer side of the turntable 2 on the upper side of the base 1, the left and right ends of the U-shaped frame 3 are fixedly connected to the inside of the first limit rod 4, the outside of the first limit rod 4 is provided with a first spring 5, the middle part of the upper end of the U-shaped frame 3 is fixedly connected to the first electric push rod 6, the lower end of the first electric push rod 6 is fixedly connected to the lifting plate 7, the left and right ends of the lifting plate 7 are respectively slidably connected to the outside of the first limit rod 4, the middle lower side of the lifting plate 7 is fixedly connected to the magnet 8, the lower side of the lifting plate 7 corresponds to the left and right sides of the magnet 8 Slide grooves 9 are provided on both sides, and the interior of the slide grooves 9 is fixedly connected with a second limiting rod 10, and the exterior of the second limiting rod 10 is slidably connected with a slider 11, and the exterior of the second limiting rod 10 is provided with a second spring 12 on the opposite side of the slider 11, and the lower side of the slider 11 is fixedly connected with a clamping plate 13, and the left and right ends of the inner side of the lifting plate 7 are fixedly connected with a slide rail 14, and the exterior of the slide rail 14 is slidably connected with a pushing frame 15, and the outer side of the pushing frame 15 is tightly matched with the inner side of the lifting plate 7, and the inner side of the pushing frame 15 is tightly matched with the rear end of the clamping plate 13, and the upper side of the rear end of the pushing frame 15 is fixedly connected with a connecting block 16, and the front side of the connecting block 16 is fixedly connected with a second electric The front end of the second electric push rod 17 is fixedly connected to the middle of the rear side of the lifting plate 7, and the outside of the base 1 is fixedly connected with a protective cover 18. The upper front end of the protective cover 18 is provided with an opening 19, and the inside of the opening 19 is slidably connected with a protective partition 20, and the front side of the protective cover 18 is rotatably connected with a cabinet door 21; the pulley is placed on the lower side of the lifting plate 7, and the pulley can be adsorbed by the provided magnet 8, and the second electric push rod 17 is started to drive the push frame 15 to move forward, thereby driving the clamping plate 13 to move to the middle and clamp the pulley. In the process of clamping the pulley by the clamping plate 13, the slider 11 is driven to move, and the second spring 12 is compressed. When the detection is completed After completion, the second electric push rod 17 drives the push frame 15 to move backward, and the elastic force of the second spring 12 can drive the slider 11 to move to both sides, thereby canceling the clamping of the pulley; when the clamping plate 13 completes the fixation of the pulley, the first electric push rod 6 is started to drive the lifting plate 7 to descend, and compress the first spring 5, thereby driving the pulley to descend and press on the turntable 2. The turntable 2 rotates to detect the pulley, and the clamping plate 13 moves toward the middle to fix the pulley. It can be suitable for pulleys of different sizes, thereby improving the practicability of the device. The pulley is covered inside by the protective cover 18, protective partition 20 and cabinet door 21 for detection, thereby improving the safety of the detection process.

[0026] Working principle: open the cabinet door 21, pull out the protective partition 20 upwards, place the pulley on the lower side of the lifting plate 7, adsorb the pulley through the magnet 8, start the second electric push rod 17 to drive the push frame 15 to move forward through the connecting block 16, thereby driving the clamping plate 13 to move toward the middle to clamp and fix the pulley, start the first electric push rod 6 to drive the lifting plate 7 to descend, thereby driving the pulley to descend and contact with the turntable 2, the turntable 2 rotates, and detection is carried out.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A load-bearing test device for door and window pulleys, comprising a base (1), characterized in that: A turntable (2) is rotatably connected to the middle of the upper side of the base (1); a U-shaped frame (3) is fixedly connected to the outer side of the turntable (2) on the upper side of the base (1); first limit rods (4) are fixedly connected to the inside of the left and right ends of the U-shaped frame (3); a first spring (5) is arranged on the outside of the first limit rod (4); a first electric push rod (6) is fixedly connected to the middle of the upper end of the U-shaped frame (3); a lifting plate (7) is fixedly connected to the lower end of the first electric push rod (6); the left and right ends of the lifting plate (7) are respectively slidably connected to the outside of the first limit rod (4); the lower middle part of the lifting plate (7) is fixedly connected to the outside of the first limit rod (4); A magnet (8) is fixedly connected to the side, and a slide groove (9) is provided on the lower side of the lifting plate (7) corresponding to the left and right sides of the magnet (8), and the inside of the slide groove (9) is fixedly connected to a second limit rod (10), and the outside of the second limit rod (10) is slidably connected to a slider (11), and the outside of the second limit rod (10) is provided with a second spring (12) on the opposite side of the slider (11), and the lower side of the slider (11) is fixedly connected to a clamping plate (13), and the lifting plate (7) is connected to the clamping plate (13) through a driving component, and the outside of the base (1) is fixedly connected to a protective component.

2. A load-bearing test device for door and window pulleys according to claim 1, characterized in that: The driving assembly comprises slide rails (14) at the left and right ends of the inner side of the lifting plate (7); the outer sides of the slide rails (14) are slidably connected to a push frame (15); the upper side of the rear end of the push frame (15) is fixedly connected to a connecting block (16); and the front side of the connecting block (16) is fixedly connected to a second electric push rod (17).

3. A load-bearing test device for door and window pulleys according to claim 1, characterized in that: The protective assembly comprises a protective cover (18) outside the base (1), an opening (19) is provided at the front end of the upper side of the protective cover (18), a protective partition (20) is slidably connected inside the opening (19), and a cabinet door (21) is rotatably connected to the front side of the protective cover (18).

4. A load-bearing test device for door and window pulleys according to claim 2, characterized in that: The opposite sides of the slide rails (14) are respectively fixedly connected to the inner sides of the lifting plates (7).

5. A load-bearing test device for door and window pulleys according to claim 2, characterized in that: The outer side of the pushing frame (15) is tightly matched with the inner side of the lifting plate (7), and the inner side of the pushing frame (15) is tightly matched with the rear end of the clamping plate (13).

6. A load-bearing test device for door and window pulleys according to claim 2, characterized in that: The front end of the second electric push rod (17) is fixedly connected to the middle part of the rear side of the lifting plate (7).

7. A load-bearing test device for door and window pulleys according to claim 3, characterized in that: The lower end of the protective cover (18) is fixedly connected to the upper side of the base (1).

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