Safety protection device for installation, maintenance and transformation of elevator

Abstract

The utility model relates to the technical field of protection devices, and discloses an elevator installation, maintenance and transformation safety protection device which comprises plate bodies, two limiting plates, two embedded columns, four electric telescopic rods and a plurality of multi-section telescopic rods. And two extension plates are arranged on the inner walls of the two bearing grooves in a sliding manner. According to the elevator shaft protection device, the end face of the plate body is attached to the inner wall of the elevator shaft, the limiting plate is clamped at the outer end of the elevator shaft, the plate body can be effectively prevented from falling towards the inner wall of the elevator shaft through limitation of the limiting plate, the inner wall of the elevator shaft does not need to be transformed through the protection device, and use is more convenient; the ladder plates can be contained in the bearing grooves, the ladder plates can be conveniently suitable for elevator shafts of different sizes, gaps between the ladder plates and the elevator shafts can be reduced through the arrangement of the ladder plate sets, and the situation that tools fall into the elevator shafts accidentally during working is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of protection device, especially to an elevator installation, maintenance, modification safety protection device. BACKGROUND

[0002] The elevator is a device for moving people and goods up and down in a building, usually driven by a motor, and the lifting is controlled through a cable or a hydraulic system, and the safety protection device needs to be used when the elevator is installed, maintained and modified, which can support and protect the workers, so that the workers can safely maintain the elevator.

[0003] The prior art (publication number: CN220467231U) discloses "the utility model relates to the technical field of protection device, especially to an elevator installation, maintenance, modification safety protection device.

[0004] The inventor found that the prior art has the following problems in the implementation process: 1. The above-mentioned protection device needs to be modified inside the elevator shaft first, which has limitations; 2. The above-mentioned protection device still has obvious gap with the inside of the elevator shaft after it is unfolded, which cannot effectively block the falling of objects. Therefore, the technical personnel in the art provide an elevator installation, maintenance, modification safety protection device to solve the problems in the above background. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art, and provides an elevator installation, maintenance, modification safety protection device, which does not need to modify the inner wall of the elevator shaft, is more convenient to use, is convenient to adapt to different sizes of elevator shafts, and effectively avoids the tools from accidentally falling into the elevator shaft.

[0006] To achieve the above object, the utility model provides the following technical scheme: an elevator installation maintenance modification safety protection device, including board main part, two limit boards, two embedded columns, four electric telescopic rods and a plurality of multi -section telescopic rods, the rear side position of both sides end surface of two board main part all is set up with and holds the groove, two the inner wall of holding the groove all is equipped with two extension plate, two the extension plate front end surface all is equipped with the step board group, two the embedded column front side inner wall all is fixedly set up with first spring,

[0007] The outer peripheral position of the rear end surface of the two embedded columns is fixedly provided with a plurality of clamping strips, the outer end surface of the plurality of multi-section telescopic rods is sleeved with a second spring, and the lower side position of the front end surface of the two limit boards is provided with a plurality of clamping grooves.

[0008] Further, the front side and the rear side position of the opposite side end surface of the two extension plates are provided with an inner groove, and the output end of the four electric telescopic rods is fixedly connected with the four inner grooves.

[0009] Further, the four electric telescopic rods are embedded in the opposite side inner wall of the two holding grooves, and the two step board groups are slidably arranged on the front side inner wall of the two holding grooves.

[0010] Further, the front side position of the opposite side inner wall of the two holding grooves is provided with a plurality of hole grooves, and the plurality of multi-section telescopic rods are arranged between the plurality of hole grooves and the two step board groups.

[0011] Further, the front side position of the two sides of the upper end surface of the board main part is provided with a placing groove, and the opposite side position of the inner wall of the two placing grooves is rotatably provided with the two limit boards.

[0012] Further, the two sides of the front end surface of the board main part are provided with a circular hole, the two embedded columns are slidably sleeved in the inner wall of the two circular holes, and the two first springs are fixedly arranged on the front side inner wall of the two circular holes.

[0013] Further, the front end surface of the two embedded columns is fixedly provided with a pull block, the front end surface of the two pull blocks is fixedly provided with a pull plate, and the plurality of clamping strips are slidably arranged in the inner wall of the plurality of clamping grooves.

[0014] The utility model has the advantages of:

[0015] 1. This utility model proposes a safety protection device for elevator installation, maintenance, and renovation. Upon opening the elevator door, pulling the embedded column releases the locking strip from its engagement with the slot. Flipping the limiting plate so it is positioned at an obtuse angle, releasing the embedded column, and the first spring pulls the embedded column back to its original position, causing the locking strip to insert into the inner wall of the slot, thus fixing the limiting plate. The plate body is then inserted into the elevator shaft, with its end face adhering to the inner wall of the elevator shaft. The limiting plate is secured at the outer end of the elevator shaft. The limiting plate effectively prevents the plate body from falling into the inner wall of the elevator shaft. This protective device does not require modification of the inner wall of the elevator shaft and is more convenient to use.

[0016] 2. The present invention proposes a safety protection device for elevator installation, maintenance and renovation. After the main body of the plate extends into the elevator shaft, the electric telescopic rod is activated to push the extension plate. When the extension plate slides out, the step plate assembly is pushed by the second spring and slides out together with the extension plate, supporting the inner walls on both sides of the elevator shaft. Moreover, the step plate is arranged in a stepped shape, allowing the step plate to be stored in the receiving groove, which is convenient to adapt to elevator shafts of different sizes. In addition, the step plate assembly can reduce the gap with the elevator shaft and effectively prevent tools from accidentally falling into the elevator shaft during work. Attached Figure Description

[0017] Figure 1 This is an isometric schematic diagram of the present invention;

[0018] Figure 2 This is a top sectional view of the present invention;

[0019] Figure 3 This is an isometric view of the limiting plate of this utility model;

[0020] Figure 4 This is an isometric schematic diagram of the embedded column of this utility model;

[0021] Figure 5 For the present utility model Figure 2 Enlarged diagram of point A.

[0022] Legend:

[0023] 1. Main body of the plate; 2. Pull block; 3. Pull plate; 4. Round hole; 5. Limiting plate; 6. Extension plate; 7. Stepped plate assembly; 8. Placement groove; 9. Card slot; 10. Embedded column; 11. Card strip; 12. Receiver groove; 13. Electric telescopic rod; 14. Inner groove; 15. First spring; 16. Hole groove; 17. Multi-section telescopic rod; 18. Second spring. Detailed Implementation

[0024] 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.

[0025] Reference Figure 1 - Figure 4 An embodiment of this utility model provides: a safety protection device for elevator installation, maintenance and renovation, including a plate body 1, two limiting plates 5, two embedded columns 10, four electric telescopic rods 13 and multiple multi-section telescopic rods 17. The rear side of both end faces of the two plate bodies 1 are provided with receiving grooves 12. The inner walls of the two receiving grooves 12 are slidably provided with two extension plates 6. The front end faces of the two extension plates 6 are slidably provided with stepped plate groups 7. The front inner walls of the two embedded columns 10 are fixedly provided with first springs 15.

[0026] Multiple locking strips 11 are fixedly installed on the outer periphery of the rear end face of the two embedded columns 10, and a second spring 18 is sleeved on the outer end face of the multiple multi-section telescopic rods 17. Multiple slots 9 are opened on the lower side of the front end face of the two limiting plates 5.

[0027] The two extension plates 6 each have an inner groove 14 on the front and rear sides of their opposite end faces. The output ends of the four electric telescopic rods 13 are fixedly connected to the four inner grooves 14 respectively. The four electric telescopic rods 13 are respectively embedded in the inner walls of the two receiving slots 12 on opposite sides. The two stepped plate groups 7 are respectively slidably disposed on the inner walls of the front sides of the two receiving slots 12. Multiple holes and slots 16 are opened on the front sides of the inner walls of the two receiving slots 12 on opposite sides. Multiple multi-section telescopic rods 17 are respectively disposed between the multiple holes and slots 16 and the two stepped plate groups 7. The two stepped plate groups 7 are each composed of four stepped plates.

[0028] The upper surface of the plate body 1 has placement grooves 8 on both sides of the front side. Two limiting plates 5 are respectively rotatably set on opposite sides of the inner wall of the two placement grooves 8. The front surface of the plate body 1 has round holes 4 on both sides. Two embedded posts 10 are respectively slidably sleeved on the inner wall of the two round holes 4. Two first springs 15 are respectively fixedly set on the front inner wall of the two round holes 4. Pull blocks 2 are fixedly set on the front surface of the two embedded posts 10. Pull plates 3 are fixedly set on the front surface of the two pull blocks 2. Multiple clips 11 are respectively slidably set on the inner wall of multiple slots 9.

[0029] Specifically, opening the elevator door involves pulling the embedded column 10 via the pull plate 3 and pull block 2, causing the locking strip 11 to release its engagement with the slot 9. This allows the limiting plate 5 to flip out of its placement slot 8. Releasing the pull plate 3 and the first spring 15 pulls the embedded column 10, causing the locking strip 11 to re-insert into the slot 9, thus restricting the position of the limiting plate 5. This locking strip 11 is made of a high-strength alloy. Inserting the plate body 1 into the elevator shaft, the two limiting plates 5 rest against the wall, restricting the plate body 1 and preventing it from falling into the elevator shaft. Activating the electric telescopic rod 13 pushes the extension plate 6, causing it to unfold and rest against the inner walls on both sides of the elevator shaft. The extension plate 6 sliding out releases the restriction on the step plate assembly 7, which is then pushed out by the second spring 18 and also adheres to the wall. The second spring 18 is fitted into the inner wall of the elevator shaft. Multiple telescopic rods 17 are installed inside the second spring 18 to prevent the second spring 18 from bending. The step plate assembly 7 is composed of four step plates, each of which is slidably arranged between each other. When the distance is sufficient, the step plate assembly 7 can extend fully. When the distance is insufficient, the step shape of the step plate assembly 7 allows the step plates to selectively extend and fit against the inner wall of the elevator shaft. Step plates that do not extend long enough will be restricted inside the receiving groove 12. The plate body 1 and the extension plate 6 are close to the inner wall of the elevator shaft, and the limiting plate 5 is supported at the elevator door, allowing workers to stand stably on the plate body 1 to work. Furthermore, the close fit of the plate body 1, the extension plate 6, and the step plate assembly 7 against the inner wall of the elevator shaft can reduce gaps and prevent items from falling into the elevator shaft.

[0030] Working principle: When the elevator door is opened, the pull plate 3 and pull block 2 pull the embedded column 10, causing the limiting plate 5 to flip out of the placement slot 8. Releasing the pull plate 3 causes the first spring 15 to pull the embedded column 10, allowing the locking strip 11 to insert into the slot 9, thus restricting the position of the limiting plate 5. The plate body 1 is then inserted into the elevator shaft, with the two limiting plates 5 resting against the wall. Activating the electric telescopic rod 13 pushes the extension plate 6, causing it to unfold and rest against the inner walls on both sides of the elevator shaft. The extension plate 6 sliding out releases the restriction on the step plate assembly 7. The step plate assembly 7 is pushed out by the second spring 18. Depending on the distance between the elevator door and the inner wall of the elevator shaft, the step plate assembly 7 can be selectively extended. When the distance is sufficient, the step plate assembly 7 can be fully extended. When the distance is insufficient, the step plate assembly 7 will form a step shape. The step plate that is not long enough will be pushed into the receiving groove 12. The worker stands on the plate body 1. The plate body 1 and the extension plate 6 are close to the inner wall of the elevator shaft. Moreover, the limiting plate 5 is supported at the elevator door, allowing the worker to stand stably on the plate body 1 to work.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. An elevator installation maintenance modification safety protection device comprising a plate body (1), two limiting plates (5), two embedded columns (10), four electric telescopic rods (13) and a plurality of multi-section telescopic rods (17), characterized in that: The rear side of the both sides of the plate body (1) is provided with a receiving groove (12), the inner wall of the receiving groove (12) is slidably provided with two extension plates (6), the front end face of the extension plate (6) is slidably provided with a stepped plate group (7), and the inner wall of the front end of the embedded column (10) is fixedly provided with a first spring (15). The outer peripheral position of the rear end face of the embedded column (10) is fixedly provided with a plurality of clamping strips (11), the outer end face of the plurality of multi-section telescopic rods (17) is sleeved with a second spring (18), and the lower side of the front end face of the limiting plate (5) is provided with a plurality of clamping grooves (9).

2. The elevator installation modification safety shield according to claim 1, characterized in that The front side and the rear side of the opposite side of the two extension plates (6) are provided with an inner groove (14), and the output end of the four electric telescopic rods (13) is fixedly connected with the four inner grooves (14).

3. The elevator installation modification safety shield according to claim 1, characterized in that: The four electric telescopic rods (13) are embedded in the inner wall of the opposite side of the two receiving grooves (12), and the two stepped plate groups (7) are slidably arranged on the front inner wall of the two receiving grooves (12).

4. The elevator installation modification safety shield according to claim 1, characterized in that: The front side of the opposite side of the two receiving grooves (12) is provided with a plurality of hole grooves (16), and the plurality of multi-section telescopic rods (17) are arranged between the plurality of hole grooves (16) and the two stepped plate groups (7).

5. The elevator installation, modification, and modernization safety shield of claim 1, wherein: The front side of the opposite side of the two receiving grooves (12) is provided with a plurality of hole grooves (16), and the plurality of multi-section telescopic rods (17) are arranged between the plurality of hole grooves (16) and the two stepped plate groups (7).

6. The elevator installation modification safety shield according to claim 1, characterized in that: The front end face of the plate body (1) is provided with a circular hole (4), the inner wall of the circular hole (4) is slidably sleeved with two embedded columns (10), and the front inner wall of the circular hole (4) is fixedly provided with two first springs (15).

7. The elevator installation, modification and maintenance safety shield according to claim 1, characterized in that The front end face of the two embedded columns (10) is fixedly provided with a pull block (2), the front end face of the pull block (2) is fixedly provided with a pull plate (3), and the plurality of clamping strips (11) are slidably arranged in the inner wall of the plurality of clamping grooves (9).

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