Elevator up-speed and car unintended movement protection device test tower

Abstract

The application discloses an elevator uplink overspeed and car accidental movement protection device test tower, which comprises a test tower body and a traction machine support, a traction machine is arranged on the traction machine support, counterweights, a car body and a sling are arranged in the test tower body, the car body is arranged on a second track and moves up and down, the car body comprises a first car support and a plurality of second car supports, the first car support is internally provided with first weights which are convenient to install and dismount, the second car supports are internally provided with second weights, the first car support is detachably connected with the second car supports, the second car supports are detachably connected with each other, and a test safety clamp is arranged at the bottom of each second car support; each second car support is used as a module, is convenient to dismount and install, the first car support can be flexibly increased and dismounted with the first weights, and the operation is convenient and the adjustment efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of elevator device test towers, and more particularly to a test tower for elevator overspeed protection and car accidental movement protection devices. Background Technology

[0002] In today's society, most residential and office buildings are equipped with elevators, which have become an indispensable tool in most people's daily lives. Therefore, elevator safety is increasingly important. Abnormal elevator operation typically includes excessive speed during ascent or descent, as well as sudden drops or rises when the elevator doors open. Failure to take effective preventative measures may lead to serious safety accidents.

[0003] Elevator safety protection devices, including speed governors, safety brakes, and buffers, are crucial safeguards for the safe operation of elevators. Testing and inspection of the safety performance of these devices must be conducted using a safety component testing tower to realistically simulate actual operating conditions and verify their functionality.

[0004] During the testing process, weights are added or decelerated on the car to test the safety protection device. However, the existing car requires weights to be stacked one by one, which is inconvenient and inefficient. Summary of the Invention

[0005] To address the problems existing in the prior art, the purpose of this invention is to provide a test tower for elevator overspeed and car accidental movement protection devices. This tower solves the problem that existing technologies require stacking weights one by one for the car, which is inconvenient and inefficient. This objective is achieved through the following technical solution.

[0006] The purpose of this invention is to provide a test tower for an elevator overspeed and car accidental movement protection device, comprising a test tower body and a traction machine support. A traction machine is mounted on the traction machine support. A counterweight, a car body, and a suspension rope are disposed within the test tower body. A counterweight sheave is mounted on the top of the counterweight, and a car sheave is mounted on the top of the car body. The counterweight sheave is suspended from one end of the suspension rope, and the car sheave is suspended from the other end of the suspension rope. The middle portion of the suspension rope extends out of the test tower body and is fitted onto the traction machine. A first track and a second track are longitudinally arranged within the test tower body. The counterweight moves up and down on the first track, and the car body moves up and down on the second track. The car body includes a first car support and several second car supports. A first weight for easy installation and disassembly is disposed within the first car support, and a second weight is disposed within the second car supports. The first car support and the second car supports are detachably connected, and the second car supports are detachably connected to each other. A test safety clamp is disposed at the bottom of the second car support.

[0007] Preferably, upper guide shoes are provided on the top of both sides of the car body, and lower guide shoes are provided on the bottom of both sides of the car body, and the upper guide shoes and lower guide shoes are embedded in the second track.

[0008] Preferably, a first buffer is provided at the bottom of the test tower body, and the first buffer is located at the bottom of the car body.

[0009] Preferably, when the second car support is located at the bottom of the test tower body, the first buffer is located on the second car support.

[0010] Preferably, protective safety clamps are provided on both sides of the first car support.

[0011] Preferably, a buffer plate is provided between the first car support and the second car support or between the second car support and the second car support.

[0012] Preferably, the traction machine support is provided with a wrapping wheel and a telescopic cylinder. The wrapping wheel is located at the end of the telescopic cylinder and pushes the wrapping wheel to move up and down. The wrapping wheel is used to push the suspension rope to change the wrapping angle.

[0013] Preferably, a second buffer is provided at the bottom of the counterweight.

[0014] Preferably, guide wheels are provided at the top and bottom of the test tower body, and the suspension rope passes through the guide wheels.

[0015] Compared with the prior art, the present invention has the following advantages: 1) This invention describes a test tower for an elevator overspeed and car accidental movement protection device, comprising a test tower body and a traction machine support. A traction machine is mounted on the traction machine support. A counterweight, a car body, and a suspension rope are disposed within the test tower body. A counterweight sheave is mounted on the top of the counterweight, and a car sheave is mounted on the top of the car body. The counterweight sheave is suspended from one end of the suspension rope, and the car sheave is suspended from the other end of the suspension rope. The middle portion of the suspension rope extends out of the test tower body and is fitted onto the traction machine. A first track and a second track are longitudinally arranged within the test tower body. The counterweight is mounted on the first track and moves up and down. The car body moves up and down on a second track. The car body includes a first car support and several second car supports. The first car support is equipped with a first weight that is easy to install and remove, and the second car supports are equipped with a second weight. The first car support and the second car supports are detachably connected, and the second car supports are detachably connected to each other. A test safety clamp is provided at the bottom of the second car support. By using each second car support as a modular unit, it is easy to install and remove. The first car support can flexibly add and remove the first weight. This method is convenient to operate and has high adjustment efficiency.

[0016] 2) Other advantages of the present invention are described in detail in the embodiments section of the specification. Attached Figure Description

[0017] Figure 1 This is a perspective view of the protection device test tower provided in an embodiment of the present invention; Figure 2 This is a side view of the protection device test tower provided in an embodiment of the present invention; Figure 3 This is a partial enlarged view of the test tower for the protection device provided in an embodiment of the present invention; Figure 4 This is a perspective view of the car body provided in an embodiment of the present invention; Figure 5 This is a perspective view of the first car support provided in an embodiment of the present invention; Figure 6 This is a perspective view of the second car support provided in an embodiment of the present invention; Figure 7 This is a perspective view of the traction machine support provided in an embodiment of the present invention; Figure 8 This is a side view of the traction machine support provided in an embodiment of the present invention. Detailed Implementation

[0018] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0019] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] like Figures 1 to 8As shown, this embodiment provides a test tower for an elevator overspeed and car accidental movement protection device, including a test tower body 1 and a traction machine support 2. A traction machine 21 is mounted on the traction machine support 2, which is located on one side of the test tower body 1. The test tower body 1 contains a counterweight 11, a car body 12, and a suspension rope 13. One end of the suspension rope 13 lifts the counterweight 11, and the other end supports the car body 12. A counterweight sheave 110 is mounted on the top of the counterweight 11, through which the suspension rope 13 passes. A car sheave 120 is mounted on the top of the car body 12, through which the suspension rope 13 passes. The counterweight 11 is suspended from one end of the suspension rope 13, and the car suspension rope 120 is suspended from the other end of the suspension rope 13. The middle part of the suspension rope 13 extends out of the test tower body 1 and is looped on the traction machine 21. The rotation of the traction machine 21 causes the suspension rope 13 to rise or fall relative to the counterweight 11 and the car body 12. The test tower body 1 has a first track 14 and a second track 15 arranged longitudinally inside. The counterweight 11 moves up and down on the first track 14, and the car body 12 moves up and down on the second track 15. The car body 12 includes a first car support 121 and several second car supports 122. The first car support 121 is equipped with a first weight 123 for easy installation and removal, and the second car support 122 is equipped with a second weight 124. The first car support 121 and the second car support 122 are detachably connected, and the second car support 122 is detachably connected to each other. During use, each second car support 122, including the second weight 124 inside, weighs 1 ton. For example, four second car supports 122 weigh a total of 4 tons. The weight inside the first car support 121 is added or reduced according to the requirements of the first weight test. The number of second car supports required for the test is installed at the bottom of the first car support 121. The weight of other fractional parts is adjusted by adding a first weight. A test safety clamp 125 is installed at the bottom of the second car bracket 122. The test safety clamp 125 is used for elevator safety clamp performance testing, which is an important part of ensuring the safe operation of residential elevators. The main test indicators include action response time, braking torque, reset function, durability test, etc. Each second car bracket 122 is modular, which makes disassembly and installation convenient. The first car bracket 122 can be flexibly added to and removed from the first weight 123. This method is convenient to operate and has high adjustment efficiency. The second car bracket 122 that is not used will be located at the bottom of the test tower body 1 and can be installed when needed.

[0022] As an optional embodiment, upper guide shoes 126 are provided on the top of both sides of the car body 12, and lower guide shoes 127 are provided on the bottom of both sides of the car body 12. The upper guide shoes 126 and lower guide shoes 127 are embedded in the second track 15, and the car body 12 is limited to move up and down within the second track 15 by the upper guide shoes 126 and lower guide shoes 127.

[0023] As an optional embodiment, a first buffer 16 is provided at the bottom of the test tower body 1. The first buffer 16 is located at the bottom of the car body 12 and serves to buffer the car body 12 when it descends.

[0024] As an optional embodiment, when the second car support 122 is located at the bottom of the test tower body 1, the first buffer 16 is located on the second car support 122. When the second car support 122 is not in use, it can be used as a base for the first buffer 16 to be placed on. When the second car support 122 is needed, the first buffer 16 can be placed at the bottom position.

[0025] As an optional embodiment, protective safety clamps 17 are provided on both sides of the first car support 121. Their main function is to automatically activate when the elevator is out of control or overspeeds, and prevent the elevator from continuing to accelerate downward through mechanical action, thereby protecting passengers from the risk of falling.

[0026] As an optional embodiment, a buffer plate 128 is provided between the first car support 121 and the second car support 122 or between the second car support 122 and the second car support 122, and each layer is provided with a buffer plate 128 to play a buffering role.

[0027] As an optional embodiment, the traction machine bracket 2 is provided with a wrapping wheel 22 and a telescopic cylinder 23. The wrapping wheel 22 is located at the end of the telescopic cylinder 23 and pushes the wrapping wheel 22 to move up and down. The wrapping wheel 22 is used to push the suspension rope 13 to change the wrapping angle. In order to test the suspension rope 13 and the friction data and service life generated by the suspension rope 13 on the traction machine 21, the wrapping wheel 22 is used to change the wrapping angle of the traction machine 21.

[0028] As an optional embodiment, a second buffer 18 is provided at the bottom of the counterweight 11, which can buffer the counterweight 11 when it comes down.

[0029] As an optional embodiment, the top and bottom of the test tower body 1 are provided with guide wheels 19. The hoisting rope 13 passes through the guide wheels 19, and the end of the hoisting rope 13 is fixed at the top position of the test tower body 1. Then it passes through the counterweight hoisting wheel 110 or the car hoisting wheel 120 and extends upward to the top guide wheel 19, and then extends downward to the bottom guide wheel 19, thereby extending to the traction machine 21.

[0030] In existing technology, the car body requires stacking weights one by one, which is inconvenient, inefficient, and requires removing unwanted weights as the weight varies with each test. To solve this problem, the car body 12 includes a first car support 121 and several second car supports 122. The first car support 121 contains a first weight 123 for easy installation and removal, and the second car supports 122 contain second weights 124. The first car support 121 and the second car supports 122 are detachably connected, and the second car supports 122 are detachably connected to each other. During use, each second car support 122, including the second weight 124 inside, has a fixed value. For example, four second car supports 122 have four fixed values. The weights inside the bracket 121 are added or reduced according to the requirements of the first weight test. The number of second car brackets required for the test is installed at the bottom of the first car bracket 121. For other weights, the first weight is added. The bottom of the second car bracket 122 is equipped with a test safety clamp 125. The test safety clamp 125 is used for elevator safety clamp performance testing and is an important part of ensuring the safe operation of residential elevators. The main test indicators include action response time, braking torque, reset function, durability test, etc. Each second car bracket 122 is modular, which is convenient for disassembly and installation. The first car bracket 122 can flexibly add and remove the first weight 123. This method is convenient to operate and has high adjustment efficiency. The second car brackets 122 that are not used will be located at the bottom of the test tower body 1 and can be installed when needed.

[0031] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention are equivalent substitutions and are included within the protection scope of the present invention.

Claims

1. A test tower for an elevator overspeed protection device and a car accidental movement protection device, comprising a test tower body (1) and a traction machine support (2), wherein a traction machine (21) is provided on the traction machine support (2), and a counterweight (11), a car body (12) and a suspension rope (13) are provided inside the test tower body (1). A counterweight sheave (110) is provided on the top of the counterweight (11), and a car sheave (120) is provided on the top of the car body (12). The car is suspended from one end of the suspension rope (13), and the car wheel (120) is suspended from the other end of the suspension rope (13). The middle part of the suspension rope (13) extends out of the test tower body (1) and is fitted onto the traction machine (21). The test tower body (1) is longitudinally provided with a first track (14) and a second track (15). The counterweight (11) is mounted on the first track (14) and moves up and down. The car body (12) is mounted on the second track (15) and moves up and down. The characteristic feature is that: The car body (12) includes a first car support (121) and several second car supports (122). The first car support (121) is provided with a first weight (123) that is easy to install and remove. The second car support (122) is provided with a second weight (124). The first car support (121) and the second car support (122) are detachably connected. The second car support (122) is detachably connected to each other. The bottom of the second car support (122) is provided with a test safety clamp (125).

2. The test tower for elevator overspeed protection and car accidental movement protection device according to claim 1, characterized in that: The car body (12) has upper guide shoes (126) on the top of both sides and lower guide shoes (127) on the bottom of both sides. The upper guide shoes (126) and lower guide shoes (127) are embedded in the second track (15).

3. The test tower for elevator overspeed protection and car accidental movement protection device according to claim 2, characterized in that: The bottom of the test tower body (1) is provided with a first buffer (16), which is located at the bottom of the car body (12).

4. The test tower for elevator overspeed protection and car accidental movement protection device according to claim 3, characterized in that: When the second car support (122) is located at the bottom of the test tower body (1), the first buffer (16) is located on the second car support (122).

5. The test tower for elevator overspeed protection and car accidental movement protection device according to claim 1, characterized in that: The first car support (121) is provided with protective safety clamps (17) on both sides.

6. The test tower for elevator overspeed protection and car accidental movement protection device according to claim 1, characterized in that: A buffer plate (128) is provided between the first car support (121) and the second car support (122) or between the second car support (122) and the second car support (122).

7. The test tower for elevator overspeed protection and car accidental movement protection device according to claim 1, characterized in that: The traction machine support (2) is provided with a corner wheel (22) and a telescopic cylinder (23). The corner wheel (22) is located at the end of the telescopic cylinder (23) and pushes the corner wheel (22) to move up and down. The corner wheel (22) is used to push the suspension rope (13) to change the angle of the corner.

8. The test tower for elevator overspeed protection and car accidental movement protection device according to claim 1, characterized in that: A second buffer (18) is provided at the bottom of the counterweight (11).

9. A test tower for an elevator overspeed protection device and an elevator car accidental movement protection device according to claim 1, characterized in that: The test tower body (1) is provided with guide wheels (19) at the top and bottom, and the suspension rope (13) passes through the guide wheels (19).

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