Elevator car strength detection device

Abstract

The utility model relates to the field of elevator car detection, and discloses an elevator car strength detection device which comprises a bottom plate, fixing blocks are fixedly connected to the four corners of the top of the bottom plate, a fixing plate is fixedly connected to the tops of the multiple fixing blocks, a motor is fixedly connected to the bottom of the fixing plate, and a threaded rod is fixedly connected to the output end of the motor. A sliding plate is connected to the middle of the outer wall of the threaded rod in an engaged mode, first hydraulic rods are fixedly connected to the left side and the right side of the bottom of the fixing plate correspondingly, and first extrusion plates are fixedly connected to the output ends of the two first hydraulic rods correspondingly. According to the utility model, through mutual cooperation of the bottom plate, the fixing block, the fixing plate, the motor, the threaded rod, the sliding plate, the first hydraulic rod, the first extrusion plate, the second hydraulic rod and the second extrusion plate, the strength of the inner wall of the elevator car is detected, and the structural integrity of the inner wall of the elevator car can be verified; it is ensured that the inner wall has enough strength to bear impact and pressure in daily use.

Description

Technical Field

[0001] The utility model relates to the field of elevator car detection, in particular to an elevator car strength detection device. Background Art

[0002] The elevator car is a key component in the elevator system. Its main function is to carry passengers or goods in the vertical direction inside the building. They can transport people quickly and safely between different floors by moving up and down along the track. The safety of the elevator car is of vital importance. It must comply with strict safety standards and regulations and be equipped with various safety devices, which will directly affect the safety of people's lives and property.

[0003] After searching, Chinese patent announcement number: CN213397934U discloses an elevator car strength detection device, which belongs to the technical field of elevator car strength detection, including a base, a fixed shaft fixedly connected to the upper part of the base, a transmission wheel matched with the outer side of the fixed shaft, a conveyor belt matched with the outer side of the transmission wheel, a detection chamber fixedly connected to the middle part of the upper part of the base, a hydraulic pump fixedly connected to the lower part of one side of the detection chamber, a hydraulic rod matched with the front end of the hydraulic pump, a pressure plate fixedly connected to the front end of the hydraulic rod, and a pressure gauge fixed seat fixedly connected to the middle part of the upper part of the detection chamber. The utility model has a cylindrical fixed shaft and a plurality of fixed shafts. Before detecting the strength of the elevator car, the elevator car is placed on the conveyor belt, the transmission wheel is controlled to rotate, the elevator car is transported to the detection chamber, and the elevator car is transported out after the detection, which solves the problem that the existing detection device is not convenient to carry during detection.

[0004] However, when the above-mentioned equipment is in use, it only performs extrusion detection on the outside of the elevator car. If the inside is not detected, some design weaknesses or manufacturing defects may not be discovered. At the same time, if vibration detection is not performed, it may not be possible to accurately evaluate the durability and reliability of the elevator car in long-term operation. Therefore, an elevator car strength detection device is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an elevator car strength detection device, which aims to improve the problem of no internal strength detection and no vibration detection in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an elevator car strength detection device, including a base plate, fixed blocks are fixedly connected at the four corners of the top of the base plate, a plurality of fixed blocks are fixedly connected to the tops of fixed plates, a motor is fixedly connected to the bottom of the fixed plate, a threaded rod is fixedly connected to the output end of the motor, a sliding plate is meshingly connected to the middle of the outer wall of the threaded rod, hydraulic rod 1 is fixedly connected to the left and right sides of the bottom of the fixed plate, the output ends of the two hydraulic rods 1 are fixedly connected to the extrusion plate 1, hydraulic rod 2 is fixedly connected to the left and right sides of the top of the sliding plate, the output ends of the two hydraulic rods 2 are fixedly connected to the extrusion plate 2, and an anti-displacement component is arranged on the top of the sliding plate.

[0007] As a further description of the above technical solution:

[0008] The anti-displacement assembly includes a sliding rod and a top plate. The sliding rod is provided in plurality. The plurality of sliding rods are fixedly connected at the four corners of the top of the fixed plate. The top plate is fixedly connected to the tops of the plurality of sliding rods. The sliding plate is slidably connected to the middle of the plurality of sliding plates.

[0009] As a further description of the above technical solution:

[0010] A grounding plate is provided at the bottom of the base plate, a left-right opposite sliding groove 1 is opened at the bottom of the base plate, a left-right opposite sliding groove 2 is opened at the top of the grounding plate, two sliding grooves 1 are slidably connected inside the two sliding grooves 1, two sliding grooves 2 are slidably connected inside the two sliding grooves 1, a bracket is rotatably connected between the two sliding grooves 2 and the two sliding grooves 1, and a vibrator is fixedly connected to the top of the grounding plate.

[0011] As a further description of the above technical solution:

[0012] The bottom of the base plate is fixedly connected with a cylinder, and the output end of the cylinder is fixedly connected to the rear side of the second front sliding block.

[0013] As a further description of the above technical solution:

[0014] The left and right sides of the top plate are both provided with grooves, and the two hydraulic rods are both engaged in the two grooves.

[0015] As a further description of the above technical solution:

[0016] The left and right sides of the bottom of the bottom plate are fixedly connected with connecting blocks, and the bottoms of the two connecting blocks are fixedly connected with universal wheels that are opposite to each other in front and behind.

[0017] As a further description of the above technical solution:

[0018] A decibel meter is fixedly connected to the front end of the top of the bottom plate, and the decibel meter is arranged between the bottom plate and the fixed block.

[0019] As a further description of the above technical solution:

[0020] The front end of the fixed plate is fixedly connected with left and right opposing push handles, and the two push handles are both fixedly connected to the front end of the top plate.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, through the cooperation of the bottom plate, the fixed block, the fixed plate, the motor, the threaded rod, the sliding plate, the hydraulic rod 1, the extrusion plate 1, the hydraulic rod 2 and the extrusion plate 2, the strength test of the inner wall of the elevator car is realized, and the structural integrity of the inner wall of the elevator car can be verified to ensure that the inner wall has sufficient strength to withstand the impact and pressure in daily use.

[0023] 2. In the utility model, through the cooperation of the grounding plate, the first slide groove, the second slide groove, the first slide groove, the second slide groove, the bracket, the vibrator and the cylinder, the vibration detection of the elevator car is realized, so as to ensure that the elevator remains stable during operation, avoid safety accidents caused by excessive external vibration, reduce equipment wear caused by vibration, and extend the service life of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of an elevator car strength detection device proposed by the utility model;

[0025] Figure 2 This is a structural schematic diagram of a threaded rod of an elevator car strength detection device proposed by the utility model;

[0026] Figure 3 This is a bottom view schematic diagram of an elevator car strength detection device proposed by the utility model;

[0027] Figure 4 This is a structural schematic diagram of a bottom plate of an elevator car strength detection device proposed by the utility model;

[0028] Figure 5 The utility model discloses a structural schematic diagram of a grounding plate of an elevator car strength detection device.

[0029] Legend:

[0030] 1. Bottom plate; 2. Fixed block; 3. Fixed plate; 4. Motor; 5. Threaded rod; 6. Sliding plate; 7. Hydraulic rod 1; 8. Extrusion plate 1; 9. Hydraulic rod 2; 10. Extrusion plate 2; 11. Sliding rod; 12. Top plate; 13. Groove; 14. Grounding plate; 15. Slide 1; 16. Slide 2; 17. Sliding block 1; 18. Sliding block 2; 19. Bracket; 20. Vibrator; 21. Cylinder; 22. Connecting block; 23. Universal wheel; 24. Push handle; 25. Decibel meter. DETAILED DESCRIPTION

[0031] 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.

[0032] Reference Figure 1-Figure 3 , an embodiment of the utility model provides: an elevator car strength detection device, comprising a bottom plate 1, a fixed block 2 is fixedly connected at the four corners of the top of the bottom plate 1, a plurality of fixed blocks 2 are fixedly connected to the top of a fixed plate 3, a motor 4 is fixedly connected to the bottom of the fixed plate 3, a threaded rod 5 is fixedly connected to the output end of the motor 4, a sliding plate 6 is meshedly connected to the middle of the outer wall of the threaded rod 5, a hydraulic rod 1 7 is fixedly connected to the left and right sides of the bottom of the fixed plate 3, the output ends of the two hydraulic rods 1 7 are fixedly connected to the extrusion plate 1 8, the left and right sides of the top of the sliding plate 6 are fixedly connected to the hydraulic rod 2 9, the output ends of the two hydraulic rods 2 9 are fixedly connected to the extrusion plate 2 10, an anti-shift component is arranged on the top of the sliding plate 6, a connecting block 22 is fixedly connected to the left and right sides of the bottom of the bottom plate 1, the bottoms of the two connecting blocks 22 are fixedly connected to the front and rear opposite universal wheels 23, a decibel meter 25 is fixedly connected to the front end of the top of the bottom plate 1, and the decibel meter 25 is arranged between the bottom plate 1 and the fixed block 2, the front end of the fixed plate 3 is fixedly connected with left and right opposite push handles 24, and the two push handles 24 are fixedly connected to the front end of the top plate 12. Hold the push handles 24 and push them, so that the two connecting blocks 22 drive the bottom plate 1 to enter the elevator car through the multiple universal wheels 23 at the bottom, start the hydraulic rods 7 on both sides to extend together and press the two extrusion plates 8 against the middle and lower part of the inner wall of the elevator car, start the motor 4 to drive the threaded rod 5 to rotate, and when the threaded rod 5 rotates, the meshing sliding plate 6 moves up and down between the top plate 12 and the fixed plate 3, after selecting the second position of the elevator car to be measured, the threaded rod 5 is stopped by the motor 4, and the hydraulic rods 29 on both sides are started to extend together and press the two extrusion plates 210 against the selected position of the inner wall of the elevator car. The inner wall of the elevator car is measured by the extrusion of the two hydraulic rods 29 and the two slide bars 11. When the elevator car is in use, the decibel meter 25 is used to record the noise degree of the elevator car when it is used in the elevator.

[0033] Reference Figure 1-Figure 3The anti-shift component includes a sliding bar 11 and a top plate 12. The sliding bar 11 is provided in plurality. The plurality of sliding bars 11 are fixedly connected at the four corners of the top of the fixed plate 3. The top plate 12 is fixedly connected to the tops of the plurality of sliding bars 11. The sliding plate 6 is slidably connected to the middle of the plurality of sliding plates 6. Grooves 13 are provided on the left and right sides of the top plate 12. The two hydraulic rods 29 are both engaged in the two grooves 13. When the sliding plate 6 moves up and down between the top plate 12 and the fixed plate 3, the sliding plate 6 slides up and down in the middle of the plurality of sliding bars 11 to prevent the sliding plate 6 from shifting in position or rotating itself when moving. The sliding plate 6 is limited by the top plate 12 to prevent the sliding plate 6 from sliding up excessively. At the same time, the two hydraulic rods 29 are engaged by the grooves 13 on both sides to prevent the two hydraulic rods 29 from hitting the top plate 12 when the sliding plate 6 slides up.

[0034] Reference Figure 3-Figure 5 A grounding plate 14 is provided at the bottom of the bottom plate 1, a left-right opposite slide groove 15 is provided at the bottom of the bottom plate 1, a left-right opposite slide groove 2 16 is provided at the top of the grounding plate 14, a slider 2 18 is slidably connected inside the two slide grooves 15, a slider 17 is slidably connected inside the two slide grooves 16, a bracket 19 is rotatably connected between the two slide grooves 16 and the two sliders 17, a vibrator 20 is fixedly connected to the top of the grounding plate 14, a cylinder 21 is fixedly connected to the bottom of the bottom plate 1, and the output end of the cylinder 21 is fixedly connected to the rear side of the front slider 2 18, and the two cylinders 21 are started to extend to make the two sliders The two sliders 18 slide in the two slide grooves 15 and move away from each other. At this time, the bracket 19 rotates and opens through the mutual movement of the two sliders 18. When the bracket 19 rotates and opens, the two sliders 17 slide in the two slide grooves 16 and move away from each other, and finally the grounding plate 14 is moved downward and against the bottom of the inner wall of the elevator car. The vibrator 20 is started to drive the grounding plate 14 to vibrate. The grounding plate 14 transmits the vibration into the elevator car and is squeezed with the inner wall of the elevator car through the two extrusion plates 18 and the two extrusion plates 2 10 to ensure that the overall vibration is transmitted to the elevator car for detection.

[0035] Working principle: When the elevator car strength detection device is used, the bottom plate 1 is pushed into the elevator car through multiple universal wheels 23, and the hydraulic rods 7 on both sides are started to extend together. The extrusion plates 8 on both sides will press against the middle and lower part of the inner wall of the elevator car. The motor 4 is started to drive the threaded rod 5 to rotate and engage the sliding plate 6 to move up and down between the top plate 12 and the fixed plate 3. After the position of the inner wall of the elevator car is selected, the motor 4 is used to stop the threaded rod 5 from engaging the sliding plate 6. The hydraulic rods 9 on both sides are started to extend together. The extrusion plates 10 on both sides will press against the selected position of the inner wall of the elevator car. The inner wall of the elevator car is respectively pressed by two extrusion plates. The pressure plate 10 and the two extrusion plates 18 are squeezed to perform strength testing, and the two cylinders 21 are started to extend, so that the two sliders 18 slide in the two slide grooves 15 and move away from each other, and at the same time drive the bracket 19 to rotate and open. At this time, the two sliders 17 will slide in the two slide grooves 16 and move away from each other, and the grounding plate 14 moves downward until it rests against the bottom of the inner wall of the elevator car. The vibrator 20 drives the slide groove 16 to vibrate, and the slide groove 16 transmits the vibration into the elevator car. Through the squeezing of the two extrusion plates 18 and the two extrusion plates 10, it is ensured that the overall vibration is transmitted to the elevator car for vibration detection.

[0036] 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. An elevator car strength detection device, comprising a bottom plate (1), characterized in that: The four corners of the top of the bottom plate (1) are fixedly connected with fixed blocks (2), and the tops of the plurality of fixed blocks (2) are fixedly connected with fixed plates (3). The bottom of the fixed plate (3) is fixedly connected with a motor (4), and the output end of the motor (4) is fixedly connected with a threaded rod (5), and the middle part of the outer wall of the threaded rod (5) is meshingly connected with a sliding plate (6). The left and right sides of the bottom of the fixed plate (3) are fixedly connected with hydraulic rods one (7), and the output ends of the two hydraulic rods one (7) are fixedly connected with an extrusion plate one (8). The left and right sides of the top of the sliding plate (6) are fixedly connected with hydraulic rods two (9), and the output ends of the two hydraulic rods two (9) are fixedly connected with an extrusion plate two (10), and an anti-movement component is arranged on the top of the sliding plate (6).

2. An elevator car strength detection device according to claim 1, characterized in that: The anti-movement component comprises a sliding rod (11) and a top plate (12); the sliding rod (11) is provided in plurality, the plurality of sliding rods (11) are fixedly connected at the four corners of the top of the fixed plate (3); the top plate (12) is fixedly connected to the tops of the plurality of sliding rods (11); and the sliding plate (6) is slidably connected to the middle of the plurality of sliding plates (6).

3. An elevator car strength detection device according to claim 1, characterized in that: A grounding plate (14) is arranged at the bottom of the base plate (1), a left-right opposite sliding groove (15) is provided at the bottom of the base plate (1), a left-right opposite sliding groove (16) is provided at the top of the grounding plate (14), two sliding grooves (15) are slidably connected with a slider (18) inside, two sliding grooves (16) are slidably connected with a slider (17) inside, a bracket (19) is rotatably connected between the two sliding grooves (16) and the two sliders (17), and a vibrator (20) is fixedly connected to the top of the grounding plate (14).

4. An elevator car strength detection device according to claim 3, characterized in that: The bottom of the base plate (1) is fixedly connected to a cylinder (21), and the output end of the cylinder (21) is fixedly connected to the rear side of the second front sliding block (18).

5. An elevator car strength detection device according to claim 2, characterized in that: The top plate (12) is provided with grooves (13) on both left and right sides, and the two hydraulic rods (9) are both engaged in the two grooves (13).

6. An elevator car strength detection device according to claim 1, characterized in that: The bottom of the bottom plate (1) is fixedly connected to connecting blocks (22) on both left and right sides, and the bottoms of the two connecting blocks (22) are fixedly connected to universal wheels (23) facing each other front and back.

7. An elevator car strength detection device according to claim 1, characterized in that: A decibel meter (25) is fixedly connected to the front end of the top of the bottom plate (1), and the decibel meter (25) is arranged between the bottom plate (1) and the fixed block (2).

8. An elevator car strength detection device according to claim 1, characterized in that: The front end of the fixed plate (3) is fixedly connected to left and right opposing push handles (24), and the two push handles (24) are both fixedly connected to the front end of the top plate (12).

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