Elevator load-bearing test device

Abstract

The utility model relates to the technical field of elevator load-bearing test devices, and solves the problem that when counterweight is applied by water injection, water gradually flows into the interior of the elevator, and the interior of the elevator is weighted, which is inefficient. When a large number of elevators need to be tested, the efficiency of the load-bearing test is seriously affected, and this solution is inefficient for elevator load-bearing tests. Specifically, it is an elevator load-bearing test device, including a base, a placement plate is provided on the top surface of the base, and a drive motor is provided on the top surface of the placement plate, a connecting structure is fixed to the output end of the drive motor, and a counterweight assembly is provided on the side of the connecting structure, the counterweight assembly includes a screw rod fixedly connected to the side of the connecting structure, and counterweight blocks are sequentially provided on the surface of the screw rod from left to right, threaded holes are provided on the sides of the counterweight blocks, and the screw rods are connected to the internal threads of the threaded holes, and the bottom surface of the counterweight block is axially symmetrically provided with universal wheels.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator load-bearing test devices, in particular to an elevator load-bearing test device. Background Art

[0002] The elevator load-bearing test device disclosed by publication number CN215326254U includes several first containers, a water pump, a first pipe, a second pipe and a controller. The first container is arranged in the car, the water pump is connected to the first container through the first pipe, and the water pump is also connected to the second pipe. The water pump, the first pipe and the second pipe are used to transport liquid into the first container. The controller is electrically connected to the water pump, the controller is used to control the operation of the water pump, and a flow meter connected to the controller is installed on the first pipe, and the flow meter is used to obtain the flow rate of the liquid.

[0003] The controller controls the water pump to add liquid into the first container to perform a load-bearing test of the elevator, and controls the opening size of the water pump according to the flow rate measured by the flow meter to control the injection amount of the liquid, thereby controlling the load capacity of the elevator.

[0004] The technical solution in this comparative document has the effect of testing the load-bearing capacity of an elevator by injecting water, but the defects it brings are also more obvious. For example, when counterweighting is performed by injecting water, the water gradually flows into the interior of the elevator, adding weight to the interior of the elevator, which is inefficient. When a large number of elevators need to be tested, the efficiency of the load-bearing test is seriously affected. This solution is not efficient for elevator load-bearing tests. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides an elevator load-bearing test device, which solves the problem that when counterweight is performed by water injection, water gradually flows into the interior of the elevator to add weight to the interior of the elevator, which is inefficient. When a large number of elevators need to be tested, the efficiency of the load-bearing test is seriously affected. This solution is inefficient for elevator load-bearing tests.

[0006] To achieve the above object, the utility model provides the following technical solutions: an elevator load-bearing test device, comprising a base, a placement plate is arranged on the top surface of the base, a driving motor is arranged on the top surface of the placement plate, a connecting structure is fixed to the output end of the driving motor, and a counterweight assembly is arranged on the side of the connecting structure;

[0007] The counterweight assembly includes a screw rod fixedly connected to the side of the connection structure, and counterweight blocks are arranged on the surface of the screw rod in sequence from left to right. The sides of the counterweight blocks are each provided with a threaded hole, and the screw rod is connected to the internal threads of the threaded hole.

[0008] In a specific embodiment, a universal wheel is axially symmetrically arranged on the bottom surface of the counterweight block, and a brake structure for starting and stopping is arranged inside the universal wheel.

[0009] In a specific embodiment, the connection structure includes an insertion rod fixedly connected to the output end of the driving motor, and a square tube is sleeved on the surface of the insertion rod, and limiting holes are provided on the sides of the insertion rod and the square tube, and the limiting rod is sleeved inside the limiting hole.

[0010] In a specific embodiment, both ends of the limit rod are provided with insertion holes, and the inside of the insertion holes are plugged with spring inserts that can limit the limit rod.

[0011] In a specific embodiment, a device box is disposed on the bottom surface of the base, a battery is disposed inside the device box, a charging socket is disposed on the side of the battery, and a driving motor is electrically connected to the surface of the battery.

[0012] In a specific embodiment, a threaded opening is formed on the bottom surface of the base in an axially symmetrical manner, a moving wheel is connected to the inner thread of the threaded opening, and a non-slip bump is provided on the surface of the moving wheel for increasing friction during movement.

[0013] Compared with the prior art, the utility model provides an elevator load-bearing test device having the following

[0014] Beneficial effects:

[0015] In the technical solution disclosed by the utility model, the counterweight block falls off from the surface of the screw rod and enters the interior of the elevator. According to the test requirements, the number of counterweight blocks that fall off and enter the interior of the elevator is gradually increased, which effectively increases the counterweight inside the elevator to achieve the load-bearing test.

[0016] By means of the counterweight assembly and drive motor provided by the utility model, the drive motor works, and the output end of the drive motor rotates along with the lead screw installed through the connecting structure, so that the counterweight block threadedly connected to the surface of the lead screw moves on the surface of the lead screw until it falls off from one end of the lead screw and enters the interior of the elevator. According to the test requirements, the working rotation time of the drive motor is controlled so that the number of counterweight blocks entering the interior of the elevator is changed, thereby achieving the effect of quickly and conveniently increasing the internal counterweight of the elevator and efficiently completing the load-bearing test of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the counterweight assembly of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the split structure of the utility model.

[0022] In the figure: 1. base; 2. placement plate; 3. drive motor; 4. connection structure; 41. insertion rod; 42. square tube; 43. limit rod; 5. counterweight assembly; 51. screw rod; 52. weight block; 6. universal wheel; 7. spring insertion strip; 8. equipment box; 9. battery. DETAILED DESCRIPTION

[0023] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0024] Figure 1-Figure 4 An embodiment of the utility model is an elevator load-bearing test device, comprising a base 1, a placement plate 2 is arranged on the top surface of the base 1, and a drive motor 3 is arranged on the top surface of the placement plate 2, a connecting structure 4 is fixed to the output end of the drive motor 3, and a counterweight assembly 5 is arranged on the side of the connecting structure 4.

[0025] The specific problem addressed by this specific embodiment is to solve the problem that when counterweighting is performed by water injection, the water gradually flows into the interior of the elevator to add weight to the interior of the elevator, which is inefficient. When a large number of elevators need to be tested, the efficiency of the load-bearing test is seriously affected. This solution is not efficient for the elevator load-bearing test. The utility model utilizes the counterweight block 52 to fall off from the surface of the screw rod 51 and enter the interior of the elevator. According to the test requirements, the number of counterweight blocks 52 that fall off and enter the interior of the elevator is gradually increased, which plays a role in efficiently adding counterweight to the interior of the elevator to achieve the load-bearing test.

[0026] The counterweight assembly 5 includes a screw rod 51 fixedly connected to the side of the connection structure 4, and the surface of the screw rod 51 is provided with counterweight blocks 52 from left to right in sequence, and the side of the counterweight blocks 52 are provided with threaded holes, and the screw rods 51 are threadedly connected to the inner thread of the threaded holes. In this specific embodiment, the bottom surface of the counterweight block 52 is axially symmetrically provided with universal wheels 6, and the inner part of the universal wheels 6 is provided with a brake structure for starting and stopping. When the drive motor 3 is working, the screw rod 51 installed at its output end through the connection structure 4 rotates accordingly, so that the counterweight block 52 threadedly connected to the surface of the screw rod 51 moves on the surface of the screw rod 51 until it falls off from one end of the screw rod 51 and enters the interior of the elevator. According to the test requirements, the working rotation time of the drive motor 3 is controlled so that the number of counterweight blocks 52 entering the interior of the elevator is changed, thereby achieving the effect of quickly and conveniently increasing the counterweight inside the elevator and completing the elevator load-bearing test with high efficiency.

[0027] In this specific embodiment, the connection structure 4 includes an insertion rod 41 fixedly connected to the output end of the driving motor 3, and a square tube 42 is sleeved on the surface of the insertion rod 41, and the sides of the insertion rod 41 and the square tube 42 are provided with limiting holes, and the inside of the limiting hole is sleeved with a limiting rod 43, and both ends of the limiting rod 43 are provided with insertion holes, and the inside of the insertion holes is inserted with a spring insertion strip 7 that can limit the limiting rod 43;

[0028] Through the setting of the connecting structure 4, the load-bearing test device itself is relatively large in size. When the load-bearing test device needs to be disassembled and stored, it is only necessary to pull out the spring insert 7 and the limit rod 43 in turn to separate the insert rod 41 from the inside of the square tube 42, so that the counterweight assembly 5 can be separated as a whole and the disassembly is completed, which makes it convenient to store the load-bearing test device.

[0029] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0030] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elevator load-bearing test device, comprising a base (1), characterized in that: A placement plate (2) is arranged on the top surface of the base (1), and a drive motor (3) is arranged on the top surface of the placement plate (2); a connection structure (4) is fixed to the output end of the drive motor (3), and a counterweight assembly (5) is arranged on the side of the connection structure (4); The counterweight assembly (5) comprises a screw rod (51) fixedly connected to the side of the connection structure (4), and counterweight blocks (52) are arranged on the surface of the screw rod (51) from left to right, and threaded holes are opened on the sides of the counterweight blocks (52), and the screw rod (51) is threadedly connected to the inner part of the threaded hole.

2. An elevator load-bearing test device according to claim 1, characterized in that: The bottom surface of the counterweight block (52) is provided with a universal wheel (6) in an axisymmetric manner, and a brake structure for starting and stopping is provided inside the universal wheel (6).

3. An elevator load-bearing test device according to claim 1, characterized in that: The connection structure (4) comprises an insertion rod (41) fixedly connected to the output end of the driving motor (3), and a square tube (42) is sleeved on the surface of the insertion rod (41), and the sides of the insertion rod (41) and the square tube (42) are both provided with limiting holes, and the interior of the limiting hole is sleeved with a limiting rod (43).

4. An elevator load-bearing test device according to claim 3, characterized in that: Both ends of the limiting rod (43) are provided with insertion holes, and the inside of the insertion holes are plugged with spring insertion strips (7) that can limit the limiting rod (43).

5. An elevator load-bearing test device according to claim 1, characterized in that: The bottom surface of the base (1) is provided with a device box (8), and a storage battery (9) is provided inside the device box (8). A charging socket is provided on the side of the storage battery (9), and the surface of the storage battery (9) is electrically connected to a driving motor (3).

6. An elevator load-bearing test device according to claim 1, characterized in that: The bottom surface of the base (1) is provided with a threaded opening in an axially symmetrical manner, the inner thread of the threaded opening is connected to a moving wheel, and the surface of the moving wheel is provided with an anti-skid protrusion for increasing the friction force during movement.

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