Safety edge structure of platform elevator without car wall

Abstract

The utility model relates to the technical field of elevators, and particularly discloses a car-wall-free platform elevator safety edge structure which comprises a car bottom plate, a car side plate is fixedly arranged on one side of the car bottom plate, a safety edge body is movably installed on the periphery of the car bottom plate, and a spring assembly is installed between the safety edge body and the car side plate. Four sets of safety linkage assemblies are installed on the inner side of the safety edge body, and a mouse tail microswitch fixed to a lift car bottom plate is installed on one side of each safety linkage assembly. The spring assembly comprises a car connecting piece installed on a car side plate through a screw and a safety edge connecting piece installed at the rear end of the safety edge body through a screw, a tension spring body is connected between the safety edge connecting piece and the car connecting piece, and two sets of hanging holes are formed in the connecting position of the tension spring body and the car connecting piece. The spring assembly can be detached, the tension of the tension spring body can be directly adjusted by hooking different heights, and follow-up maintenance is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator technical field especially is involved in a kind of no car wall platform ladder safety edge structure. BACKGROUND

[0002] Platform elevator as a kind of domestic elevator, it is different from traditional car elevator. Traditional car elevator is by a closed car to transport personnel and goods, and platform elevator is in the form of platform. Since platform elevator has no closed car, the rider can see the environment around at any time during operation, although this increases openness and flexibility, but also brings potential safety risk. The existence of safety edge is to make up for this defect, it can provide effective safety protection at critical moment, prevent passenger from being injured due to accidental contact with elevator edge.

[0003] Platform elevator safety edge is usually made of soft rubber or other elastic materials, showing a flexible and foldable belt shape. It is installed in the edge area of elevator platform, when there is personnel or object contacting the edge, it will immediately perceive the contact and quickly send a signal to the control system. After receiving the signal, the control system will take action immediately, such as stopping the operation of the elevator, so as to effectively prevent accidents such as collision and extrusion from happening.

[0004] The existing platform elevator safety edge is mainly to set a floating frame on the outer periphery of the car bottom plate, and then set a spring structure and a micro switch between the floating frame and the car bottom plate. The micro switch detects the compression of the floating frame, and the spring structure resets the floating frame. However, the spring is prone to deformation and the spring force decreases after long-term use. If the spring structure is not easy to disassemble, it will affect the subsequent maintenance. SUMMARY

[0005] The utility model aims at providing a kind of no car wall platform ladder safety edge structure, which can not only disassemble spring assembly, but also directly adjust tension of tension spring main body by hooking different height, to facilitate subsequent maintenance, to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a kind of no car wall platform ladder safety edge structure, including car bottom plate, one side of the car bottom plate is fixedly provided with car side plate, the periphery of the car bottom plate is movably installed with safety edge body, and spring assembly is installed between safety edge body and car side plate, the inner side of the safety edge body is installed with four groups of safety linkage assembly, and one side of safety linkage assembly is installed with mouse tail micro switch fixed on the car bottom plate;

[0007] The spring assembly includes a car connector mounted on the car side panel by screws, and a safety side connector mounted on the rear end of the safety side body by screws. A tension spring body is connected between the safety side connector and the car connector. Two sets of hanging holes are provided at the connection between the tension spring body and the car connector.

[0008] Preferably, the safety linkage component includes a safety side connecting rod that is rotatably connected between the safety side body and the car floor.

[0009] Preferably, a first support shaft is rotatably connected between the safety side connecting rod and the safety side body, and a second support shaft is rotatably connected between the safety side connecting rod and the car floor.

[0010] Preferably, both the first support shaft and the second support shaft are mounted at both ends of the safety side connecting rod via bearings.

[0011] Preferably, a switch plate is fixedly installed on one side of the safety linkage component and the switch plate is adapted to the position of the lever of the rat tail micro switch.

[0012] Preferably, a maintenance backplate is installed at the bottom of the car floor by screws.

[0013] Preferably, a safety clamp control box is installed inside the maintenance back panel.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. With the spring assembly, the safety side connector and the car connector are respectively installed on the safety side body and the car side plate with screws, which facilitates the disassembly and maintenance of the spring assembly. At the same time, the car connector has two sets of hanging holes, which can be used to adjust the tension of the tension spring body by hooking at different heights.

[0016] 2. The safety side body and the car floor are connected by the safety linkage components. When the safety side body descends, the angle of the safety side linkage can be changed to ensure that the safety side body and the car floor are properly connected. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is an overall structural view of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0020] Figure 3 This is a schematic diagram of the structure of the safety edge body of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the safety linkage component of this utility model;

[0022] Figure 5 For the present utility model Figure 2 Enlarged view of A in the middle;

[0023] Figure 6 This is a schematic diagram of the structure of the car floor after the back panel has been disassembled and repaired according to this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Car floor plate; 2. Safety side body; 3. Rat tail micro switch; 4. Spring assembly; 401. Tension spring body; 402. Safety side connector; 403. Car connector; 5. Safety linkage assembly; 501. Safety side linkage rod; 502. First support shaft; 503. Second support shaft; 6. Switch plate; 7. Car side plate; 8. Safety gear control box; 9. Inspection back plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides a technical solution:

[0028] Please see Figures 1 to 4 A safety edge structure for a platform ladder without a car wall includes a car floor plate 1, a car side plate 7 fixedly installed on one side of the car floor plate 1, a safety edge body 2 movably installed around the car floor plate 1, and a spring assembly 4 installed between the safety edge body 2 and the car side plate 7. Four sets of safety linkage components 5 are installed on the inner side of the safety edge body 2, and a rat tail micro switch 3 fixed on the car floor plate 1 is installed on one side of the safety linkage component 5.

[0029] The spring assembly 4 includes a car connecting member 403 installed on the car side plate 7 by screws, and a safety edge connecting member 402 installed on the rear end of the safety edge body 2 by screws. A tension spring body 401 is connected between the safety edge connecting member 402 and the car connecting member 403. Two groups of hanging holes are provided at the connection between the tension spring body 401 and the car connecting member 403.

[0030] By adopting the above technical solution, the car floor 1 and the car side plate 7 form a platform elevator car. The safety edge body 2 surrounds the car floor 1 on all sides and is set in a "C" - shaped structure. A safety linkage assembly 5 is provided between the car floor 1 and the safety edge body 2. At the same time, a spring assembly 4 is provided at the rear end of the safety edge body 2. When a person or an object touches the safety edge body 2, the safety edge body 2 descends, pulling the tension spring body 401 to stretch. After removing the external force, the elastic force of the tension spring body 401 is used to make the safety edge body 2 reset. Through the provided spring assembly 4, the safety edge connecting member 402 and the car connecting member 403 are respectively installed on the safety edge body 2 and the car side plate 7 by screws, which is convenient for disassembling and maintaining the spring assembly 4. At the same time, two groups of hanging holes are provided on the car connecting member 403, and the tension of the tension spring body 401 is adjusted by hooking at different heights.

[0031] Specifically, as Figure 5 and Figure 6 shown, the safety linkage assembly 5 includes a safety edge link 501 rotatably connected between the safety edge body 2 and the car floor 1. A first support shaft 502 is rotatably connected between the safety edge link 501 and the safety edge body 2, and a second support shaft 503 is rotatably connected between the safety edge link 501 and the car floor 1. Both the first support shaft 502 and the second support shaft 503 are installed at both ends of the safety edge link 501 through bearings.

[0032] On one side of the safety linkage assembly 5, a switch hitting plate 6 fixedly installed on the safety edge body 2 is provided. The switch hitting plate 6 is adapted to the position of the toggle handle of the tail - type micro - switch 3. The bottom of the car floor 1 is installed with a maintenance back plate 9 by screws, and a safety clamp control box 8 is installed inside the maintenance back plate 9.

[0033] By adopting the above technical solution, when the safety edge body 2 descends, it can drive the safety edge link 501 to rotate. The first support shaft 502 and the second support shaft 503 on the safety edge link 501 can connect the safety edge body 2 and the car floor 1. When the safety edge body 2 descends, the switch hitting plate 6 moves downward and hits the toggle handle of the tail - type micro - switch 3, and the tail - type micro - switch 3 closes, and the elevator stops running. Through the provided safety linkage assembly 5, the safety edge body 2 and the car floor 1 are connected. When the safety edge body 2 descends, the angle of the safety edge link 501 can be changed to ensure the normal connection between the safety edge body 2 and the car floor 1.

[0034] Working principle: The car floor 1 and the car side plate 7 form a platform elevator car. The safety edge body 2 surrounds the periphery of the car floor 1 and is set in a "C" - shaped structure. A safety linkage component 5 is arranged between the car floor 1 and the safety edge body 2. At the same time, a spring component 4 is arranged at the rear end of the safety edge body 2. The safety edge connecting piece 402 and the car connecting piece 403 are respectively installed on the safety edge body 2 and the car side plate 7 by screws. The two ends of the tension spring body 401 are respectively inserted into the safety edge connecting piece 402 and the car connecting piece 403. Since the car connecting piece 403 has two hanging holes, inserting the tension spring body 401 into the hanging holes at different heights will result in different tensions. When a person or an object touches the safety edge body 2, the safety edge body 2 descends and pulls the tension spring body 401 to stretch. At this time, when the safety edge body 2 descends, the switch hitting plate 6 can move downward and hit the lever of the mouse - tail micro - switch 3, and the mouse - tail micro - switch 3 closes, and the elevator stops running. After removing the external force, due to the elasticity of the tension spring body 401, the safety edge body 2 resets.

[0035] Finally, it should be noted that: The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: They can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A safety edge structure for a platform staircase without a car wall, comprising a car floor plate (1), characterized in that: A car side plate (7) is fixedly installed on one side of the car floor plate (1). A safety side body (2) is movably installed around the car floor plate (1). A spring assembly (4) is installed between the safety side body (2) and the car side plate (7). Four sets of safety linkage components (5) are installed on the inner side of the safety side body (2). A rat tail micro switch (3) is fixed on one side of the safety linkage component (5). The spring assembly (4) includes a car connector (403) mounted on the car side panel (7) by screws, and a safety side connector (402) mounted on the rear end of the safety side body (2) by screws. A tension spring body (401) is connected between the safety side connector (402) and the car connector (403). Two sets of hanging holes are provided at the connection between the tension spring body (401) and the car connector (403).

2. The safety edge structure of a platform staircase without a car wall according to claim 1, characterized in that: The safety linkage component (5) includes a safety side linkage rod (501) that is rotatably connected between the safety side body (2) and the car floor (1).

3. The safety edge structure of a platform ladder without a car wall according to claim 2, characterized in that: The safety side connecting rod (501) is rotatably connected to the safety side body (2) by a first support shaft (502), and the safety side connecting rod (501) is rotatably connected to the car floor (1) by a second support shaft (503).

4. The safety edge structure of a platform staircase without a car wall according to claim 3, characterized in that: The first support shaft (502) and the second support shaft (503) are both mounted on both ends of the safety side connecting rod (501) via bearings.

5. The safety edge structure of a platform staircase without a car wall according to claim 4, characterized in that: The safety linkage component (5) has a switch plate (6) fixedly installed on the safety side body (2) on one side. The switch plate (6) is adapted to the position of the lever of the rat tail micro switch (3).

6. The safety edge structure of a platform staircase without a car wall according to claim 5, characterized in that: The bottom of the car floor (1) is fitted with a maintenance backplate (9) by screws.

7. A safety edge structure for a platform staircase without a car wall according to claim 6, characterized in that: The safety clamp control box (8) is installed inside the maintenance back panel (9).

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