Detection device for elevator safety circuit

Abstract

The utility model provides a detection device for an elevator safety circuit, which belongs to the field of elevator maintenance equipment and comprises a circuit resistance tester, a damping component and a fixing component. The loop resistance tester is installed in the storage box, and a cover plate is hinged to one side of the storage box. According to the utility model, the two sliding rods are installed inside the storage box, the two sliding blocks are installed on the surfaces of the sliding rods in a sliding manner, the movable rods are hinged to the tops of the sliding blocks, the tops of the movable rods are hinged to the bottom of the installation seat, the loop resistance tester is installed in the installation seat, and when the storage box is collided and vibrates, the installation seat is stressed, and the loop resistance tester is fixed. At the moment, sliding blocks at the bottom of a mounting seat slide towards the two ends of a sliding rod and push damping springs on the surface of the sliding rod to move towards the surface of a limiting ring, the damping springs absorb force and dissipate vibration through self deformation, and the vibration amplitude in the storage box is reduced; therefore, damage caused by collision between the loop resistance tester and the inner wall of the box body due to collision and vibration is avoided.

Description

Technical Field

[0001] This utility model relates to the field of elevator maintenance equipment, specifically a detection device for elevator safety circuits. Background Technology

[0002] An elevator is a permanent transportation device that serves several specific floors within a building. Its car moves on at least two rigid tracks that are perpendicular to the horizontal plane or have an angle of inclination of less than 15 degrees to the vertical. There are also escalators, where the steps are mounted on a continuous track and run continuously. These are commonly known as moving walkways or automatic stairs. Elevators are fixed lifting devices that serve designated floors. During use, elevators require regular maintenance and inspection, including a comprehensive test of their circuits. Otherwise, accidents can easily occur, posing a safety hazard to people. Existing elevator circuit testing devices are placed in portable cases, which offer poor protection during transport. They are easily damaged by impacts, affecting their subsequent use. Utility Model Content

[0003] The purpose of this invention is to provide a detection device for elevator safety circuits to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a detection device for elevator safety circuits, comprising a circuit resistance tester, a shock absorption component, and a fixing component;

[0005] Among them: the loop resistance tester is installed inside the storage box, and a cover plate is hinged to one side of the storage box;

[0006] The shock absorption assembly includes two sliding rods fixedly installed inside the storage box. Two sliders are slidably mounted on the surface of the sliding rods. Limiting rings are installed at both ends of the sliding rods. Shock-absorbing springs are sleeved between the sliders and the limiting rings at both ends of the surface of the sliding rods. A movable rod is hinged to the top of the slider. A mounting base is hinged to the top of the movable rod. The loop resistance tester is mounted on the surface of the mounting base.

[0007] The fixing assembly includes a fixing box installed inside the mounting base. Connecting strips are connected to both sides of the loop resistance tester. Mounting grooves are opened on both sides of the inner wall of the fixing box. The connecting strips are inserted into the mounting grooves. Fixing bolts are threaded to both sides of the fixing box. The fixing bolts pass through the fixing box and make contact with the loop resistance tester inside.

[0008] As a preferred embodiment of this utility model: a support block is provided on the inner side of the cover plate, and a plurality of placement grooves are formed on the surface of the support block, and a test pen is placed inside the placement groove.

[0009] As a preferred embodiment of this utility model: the surface of the loop resistance tester is provided with a display screen, an adjustment knob is installed on one side of the display screen, and several detection interfaces are also provided at the bottom of the surface of the loop resistance tester.

[0010] As a preferred embodiment of this utility model: the surface of the storage box is equipped with a buckle, the surface of the cover is equipped with a fixing seat, and the buckle is fastened to the fixing seat.

[0011] As a preferred embodiment of this utility model, anti-collision strips are connected to the corners of both the storage box and the cover.

[0012] As a preferred embodiment of this utility model, the support block is made of sponge material.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) Two sliding rods are installed inside the storage box. Two sliders are slidably installed on the surface of the sliding rods. A movable rod is hinged to the top of the slider. The top of the movable rod is hinged to the bottom of the mounting base. The loop resistance tester is installed in the mounting base. When the storage box is impacted and vibrates, the mounting base is subjected to force. At this time, the slider at the bottom of the mounting base slides to both ends of the sliding rod and pushes the shock-absorbing spring on the surface of the sliding rod to move towards the surface of the limiting ring. After absorbing the force, the shock-absorbing spring dissipates the vibration through its own deformation, thereby reducing the vibration amplitude inside the storage box and thus preventing the loop resistance tester from being damaged by impact vibration and impact with the inner wall of the box.

[0015] (2) A fixing box is installed inside the mounting base by means of a fixing component. The inner wall of the fixing box has mounting slots on both sides. The loop resistance tester is placed inside the fixing box so that the connecting strip is inserted into the mounting slot, so that the loop resistance tester is stably placed inside the fixing box. The loop resistance tester is fixed inside the fixing box by tightening the fixing bolts on both sides of the fixing box. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the shock absorption component structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the fixing component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the surface structure of the loop resistance tester of this utility model.

[0020] In the diagram: 1. Loop resistance tester; 2. Storage box; 3. Cover plate; 4. Shock absorption assembly; 41. Slide rod; 42. Slider; 43. Limiting ring; 44. Shock absorption spring; 45. Movable rod; 46. Mounting base; 5. Fixing assembly; 51. Fixing box; 52. Connecting strip; 53. Mounting slot; 54. Fixing bolt; 6. Support block; 61. Placement slot; 7. Test pen; 8. Display screen; 9. Adjustment knob; 10. Detection interface; 11. Lock; 12. Fixing base; 13. Anti-collision strip. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Please see Figures 1-4 A detection device for elevator safety circuits includes: a circuit resistance tester 1, a shock absorption assembly 4, and a fixing assembly 5. The circuit resistance tester 1 is installed inside a storage box 2, and a cover plate 3 is hinged to one side of the storage box 2.

[0023] Please see Figure 1 , Figure 2 The shock absorption assembly 4 includes two slide rods 41 fixedly installed inside the storage box 2. Two sliders 42 are slidably installed on the surface of the slide rods 41. Limiting rings 43 are installed at both ends of the slide rods 41. Shock-absorbing springs 44 are sleeved between the sliders 42 and the limiting rings 43 at both ends of the surface of the slide rods 41. A movable rod 45 is hinged to the top of the slider 42. A mounting base 46 is hinged to the top of the movable rod 45. The loop resistance tester 1 is installed on the surface of the mounting base 46.

[0024] In practical use: Two sliding rods 41 are installed inside the storage box 2. Two sliders 42 are slidably installed on the surface of the sliding rods 41. A movable rod 45 is hinged to the top of the slider 42. The top of the movable rod 45 is hinged to the bottom of the mounting base 46. The loop resistance tester 1 is installed in the mounting base 46. When the storage box 2 is impacted and vibrates, the mounting base 46 is subjected to force. At this time, the sliders 42 at the bottom of the mounting base 46 slide towards both ends of the sliding rods 41 and push the shock-absorbing springs 44 on the surface of the sliding rods 41 to move towards the surface of the limiting ring 43. After absorbing the force, the shock-absorbing springs 44 dissipate the vibration through their own deformation, thereby reducing the vibration amplitude inside the storage box 2 and preventing the loop resistance tester 1 from being damaged by impact vibration and impact against the inner wall of the box.

[0025] Please see Figure 1 , Figure 3 The fixing component 5 includes a fixing box 51 installed inside the mounting base 46. Connecting strips 52 are connected to both sides of the loop resistance tester 1. Mounting grooves 53 are opened on both sides of the inner wall of the fixing box 51. The connecting strips 52 are inserted into the mounting grooves 53. Fixing bolts 54 are threaded to both sides of the fixing box 51. The fixing bolts 54 pass through the fixing box 51 and contact the loop resistance tester 1 inside.

[0026] In practical use: A fixing box 51 is installed inside the mounting base 46. The inner walls of the fixing box 51 are provided with mounting grooves 53 on both sides. The loop resistance tester 1 is placed inside the fixing box 51 so that the connecting strip 52 passes through the mounting groove 53, so that the loop resistance tester 1 is stably placed inside the fixing box 51. The loop resistance tester 1 is fixed inside the fixing box 51 by tightening the fixing bolts 54 on both sides of the fixing box 51.

[0027] Please see Figure 1 The inner side of the cover plate 3 is provided with a support block 6. The surface of the support block 6 is provided with several placement grooves 61. The test pen 7 is placed inside the placement grooves 61. The support block 6 is made of sponge material.

[0028] In practical use: The inner side of the cover plate 3 is provided with a support block 6. The support block 6 holds a test pen 7 through a placement groove 61 on its surface. The test pen 7 can be connected to the detection interface 10, so that the loop resistance tester 1 can be connected to the elevator loop circuit for measurement through the test pen 7. The support block 6 is made of sponge material, which is lightweight and protects the test pen 7.

[0029] Please see Figure 1 , Figure 4 The loop resistance tester 1 has a display screen 8 on its surface, an adjustment knob 9 on one side of the display screen 8, and several detection interfaces 10 on the bottom of the surface of the loop resistance tester 1.

[0030] In practical use: The surface of the loop resistance tester 1 is equipped with a display screen 8, which is used to display the values ​​of the elevator loop test, making it convenient for maintenance personnel to record data. An adjustment knob 9 is installed on one side of the display screen 8 to adjust the different current required for different test objects. By adjusting the knob 9, the current can be flexibly adjusted to adapt to different measurement needs. The test interface 10 facilitates the connection between the test loop and the loop resistance tester 1.

[0031] Please see Figure 1 The surface of the storage box 2 is equipped with a latch 11, and the surface of the cover plate 3 is equipped with a fixing seat 12. The latch 11 and the fixing seat 12 are fastened together.

[0032] In actual use: After the cover plate 3 on one side of the storage box 2 is closed, the latch 11 is pulled to engage with the fixing seat 12, so that the cover plate 3 is fixedly closed on the storage box 2.

[0033] Please see Figure 1 Anti-collision strips 13 are connected to the corners of both the storage box 2 and the cover plate 3.

[0034] In practical use: the anti-collision strips 13 connected to the corners of the storage box 2 and the cover plate 3 serve to protect the storage box 2 and improve the structural strength of the box.

[0035] The valve stem 103 consists of an upper stem body 1031 and a lower stem body 1032. A screw 201 is connected to the bottom of the upper stem body 1031, and a sliding sleeve 202 is installed on the top of the lower stem body 1032. The screw 201 is threaded into a threaded groove 203 inside the sliding sleeve 202. A guide sleeve 204 is installed inside the mounting sleeve 102. A limit groove 205 is opened on the inner wall of the guide sleeve 204. The sliding sleeve 202 slides in the limit groove through the limit sliders 206 on both sides. In step 205, when the upper rod 1031 rotates, it drives the screw 201 to rotate inside the sliding sleeve 202. Under the limit of the limiting groove 205, the sliding sleeve 202 moves up and down along the screw 201, thereby driving the valve core 104 to move up and down to open and close. Since the upper rod 1031 and the lower rod 1032 are connected to the sliding sleeve 202 through the screw 201, the valve stem 103 will not loosen when subjected to vibration, thus preventing the valve core 104 from moving upward and causing leakage.

[0036] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A detection device for an elevator safety circuit, characterized in that include: A loop resistance tester (1) is installed inside a storage box (2), and a cover plate (3) is hinged to one side of the storage box (2). The shock absorption assembly (4) includes two slide rods (41) fixedly installed inside the storage box (2). Two sliders (42) are slidably installed on the surface of the slide rods (41). Limiting rings (43) are installed at both ends of the slide rods (41). Shock-absorbing springs (44) are sleeved between the sliders (42) and the limiting rings (43) at both ends of the surface of the slide rods (41). A movable rod (45) is hinged to the top of the slider (42). A mounting base (46) is hinged to the top of the movable rod (45). The circuit resistance tester (1) is installed on the surface of the mounting base (46). The fixing component (5) includes a fixing box (51) installed inside the mounting base (46). Connecting strips (52) are connected to both sides of the loop resistance tester (1). Mounting grooves (53) are opened on both sides of the inner wall of the fixing box (51). The connecting strips (52) are inserted into the mounting grooves (53). Fixing bolts (54) are threaded to both sides of the fixing box (51). The fixing bolts (54) penetrate the fixing box (51) and contact the loop resistance tester (1) inside.

2. A detection device for an elevator safety circuit according to claim 1, characterized in that The cover plate (3) has a support block (6) on its inner side. The surface of the support block (6) has several placement slots (61), and a test pen (7) is placed inside the placement slots (61).

3. A detection device for an elevator safety circuit according to claim 1, characterized in that: The loop resistance tester (1) has a display screen (8) on its surface, and an adjustment knob (9) is installed on one side of the display screen (8). The bottom of the loop resistance tester (1) is also provided with several detection interfaces (10).

4. A detection device for an elevator safety circuit according to claim 1, characterized in that: The surface of the storage box (2) is fitted with a buckle (11), and the surface of the cover plate (3) is fitted with a fixing seat (12). The buckle (11) is fastened to the fixing seat (12).

5. A detection device for an elevator safety circuit according to claim 1, characterized in that: Anti-collision strips (13) are connected to the corners of the storage box (2) and the cover plate (3).

6. A detection device for an elevator safety circuit according to claim 2, characterized in that: The support block (6) is made of sponge material.

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