Elevator door limiting device for elevator maintenance

Abstract

The utility model provides an elevator door limiting device for elevator maintenance, and relates to the technical field of elevator maintenance, the elevator door limiting device comprises a weighting block, the top of the weighting block is fixedly connected with a supporting column, the two sides of the lower end of the supporting column are both provided with a main limiting assembly in a penetrating mode, and the upper end of the supporting column is provided with two limiting sliding seats in a sliding mode; a same bearing assembly is arranged between the main limiting assembly and the limiting sliding seat in the supporting column, a same auxiliary limiting assembly is arranged in the middle of the limiting sliding seat and the supporting column in a penetrating mode, and limiting clamps are arranged at the same ends of the adjacent main limiting assembly and auxiliary limiting assembly. Through the arrangement of the two sets of main limiting assemblies and the two sets of auxiliary limiting assemblies on the supporting columns, the upper side and the lower side of the elevator door can be conveniently limited at the same time, the supporting area and the supporting uniformity of the limiting assemblies on the elevator door are enlarged, and the inclination phenomenon that the elevator door is stressed unevenly is avoided; and rapid resetting and withdrawing of the limiting device are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of elevator maintenance technology, specifically to an elevator door limit device for elevator maintenance. Background Technology

[0002] An elevator is a permanent transportation device that serves several specific floors within a building. Its car moves on at least two rigid tracks that are perpendicular to the horizontal plane or have an angle of inclination of less than 15° to the vertical. The car is the elevator component that transports passengers and goods and is the working part of the elevator. The car consists of a car frame and a car body. The entrance and exit of each floor are closed and opened by elevator doors.

[0003] During existing elevator maintenance, workers will place a limiting device at the elevator door and place a weight in the middle of the entrance / exit. The threaded rod on the limiting device will extend and abut against the elevator door, thus limiting the elevator door of different widths and improving the efficiency of elevator maintenance.

[0004] For example, Chinese patent CN217398195U discloses an elevator door limiting device for elevator maintenance, including a protective plate. A weight is fixedly connected to the upper surface of the protective plate, and support plates are vertically fixedly connected to both sides of the top of the weight. A horizontal plate is horizontally fixedly connected to the top of the support plates. The horizontal plate has open-faced receiving grooves on both sides inside, and a threaded rod is horizontally arranged in the inner cavity of the receiving groove. The outer end of the threaded rod extends to the outside of the horizontal plate, and a nut is threaded onto the outer surface of the threaded rod. This elevator door limiting device allows for manual placement of the protective plate between elevator doors. By rotating the nut, the threaded rod extends, and the two limiting plates extend a certain distance to contact the elevator door on the same side, thus limiting the door's position. The retractable nature of the two limiting plates facilitates support for elevator doors of different widths, increasing the device's adaptability.

[0005] Although the elevator door limiting device for elevator maintenance described above has a telescopic function, it still has the following drawbacks: 1. The existing threaded rod needs to be manually extended and retracted during use, which is not convenient for resetting and retracting the device; 2. The limiting device can only limit the lower end of the elevator door, which can easily cause the upper end of the elevator door to tilt inward, resulting in poor limiting effect; Therefore, this application provides an elevator door limiting device for elevator maintenance to meet the requirements. Utility Model Content

[0006] This utility model provides an elevator door limit device for elevator maintenance, which solves the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0008] This utility model provides an elevator door limiting device for elevator maintenance, including a weight block. A support column is fixedly connected to the top of the weight block. Main limiting components are provided through both sides of the lower end of the support column. Two limiting slides are slidably provided at the upper end of the support column. A common receiving component is provided inside the support column between the main limiting components and the limiting slides. A common secondary limiting component is provided through the middle of the limiting slides and the support column. Limiting clamps are provided at the same end of adjacent main limiting components and secondary limiting components.

[0009] Furthermore, the main limiting component includes an outer tube that penetrates the support column, an inner tube that penetrates one end of the outer tube, an inner spring that is disposed in the outer tube at one end of the inner tube, and a limiting bolt that penetrates the other end of the outer tube and penetrates the inner tube. The secondary limiting component has the same structure as the main limiting component.

[0010] Furthermore, the outer tube and the inner tube are fitted with the same outer spring, which is fixedly connected to the other end of the inner tube, and the other end of the outer spring abuts against the support column.

[0011] Furthermore, a rubber block is provided in the middle of the inner spring.

[0012] Furthermore, the support column has sliding openings on three sides that cooperate with the limiting slide and sliding grooves in the support column that cooperate with the limiting slide.

[0013] Furthermore, the limiting slide includes a slider that slides with the slide opening, a through opening in the middle of the slider, a sliding end that passes through the slide groove at the rear end of the slider, and a rotating bolt that passes through the upper end of the slider.

[0014] Furthermore, the receiving component includes a rotating shaft rotatably disposed in the support column and a traction rope wound around the outside of the rotating shaft. The traction rope is made of rubber material, and its two ends are respectively connected to the limiting slide and the main limiting component.

[0015] Furthermore, the limiting clamp is L-shaped, with a limiting end on the side of the limiting clamp away from the main limiting component, and a frosted sheet on the side of the limiting clamp near the limiting end.

[0016] Through the above technical solutions

[0017] The above-described solution of this utility model has at least the following beneficial effects:

[0018] 1. This utility model, through the setting of a main limiting component and a limiting slide, facilitates the pulling of two sets of main and secondary limiting components toward the support column. The elastic traction rope in the receiving component is wound around the rotating shaft, which facilitates the limiting slide to pull the traction rope to the upper side of the support column, expanding the support area of ​​the main and secondary limiting components for the elevator door. When the limiting device is separated from the elevator door, the use of the inner and outer springs on the main and secondary limiting components allows the main and secondary limiting components to be reset to their initial state. Furthermore, by unscrewing the limiting bolt and the slide groove, the slider can be released from the support column. Then, through the elastic retraction of the traction rope, the limiting slide can be pulled toward the rotating shaft, and the limiting slide can be quickly retracted to the lower side of the support column, facilitating the rapid reset of the limiting device and solving the problem of the complex retraction of existing limiting devices.

[0019] 2. This utility model, through the setting of two sets of main limiting components and secondary limiting components, facilitates the simultaneous limiting treatment of the bottom and top of the elevator door by the upper and lower distributed main limiting components and secondary limiting components, increasing the limiting area of ​​the limiting device on the elevator door, facilitating the uniform support of the limiting device on the elevator door body, and through the limiting clamp to limit the side of the elevator door, the frictional contact between the frosted sheet and the elevator door can improve the limiting stability of the limiting device on the elevator door, solving the problem of the existing elevator door limiting device having a single support position, which easily causes the elevator door to tilt. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural view of the present invention;

[0021] Figure 2 This is a three-dimensional view of the structure of the support column, the main limiting component, and the secondary limiting component in this utility model;

[0022] Figure 3 This is a three-dimensional structural view of the main limiting component in this utility model;

[0023] Figure 4 This is a three-dimensional view of the structure of the limiting slide and the secondary limiting assembly in this utility model;

[0024] Figure 5 This is a partial three-dimensional view of the limiting slide and the supporting column in this utility model;

[0025] Figure 6 This is an exploded view of the limiting clamp structure in this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Weight block; 2. Support column; 3. Main limiting assembly; 4. Limiting slide; 5. Receiving assembly; 6. Secondary limiting assembly; 7. Limiting clamp; 201. Sliding port; 202. Sliding groove; 301. Outer tube; 302. Inner tube; 303. Inner spring; 304. Outer spring; 305. Rubber block; 306. Limiting bolt; 401. Sliding block; 402. Through port; 403. Sliding end; 404. Rotating bolt; 501. Rotating shaft; 502. Traction rope; 701. Limiting end; 702. Frosted disc. Detailed Implementation

[0028] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0029] like Figures 1 to 6 As shown, an embodiment of this utility model provides an elevator door limiting device for elevator maintenance, including a weight block 1, a support column 2 fixedly connected to the top of the weight block 1, main limiting components 3 penetrating both sides of the lower end of the support column 2, two limiting slides 4 slidably arranged at the upper end of the support column 2, a common receiving component 5 arranged between the main limiting component 3 and the limiting slides 4 in the support column 2, a common secondary limiting component 6 penetrating the middle of the limiting slides 4 and the support column 2, and a limiting clamp 7 arranged at the same end of adjacent main limiting components 3 and secondary limiting components 6.

[0030] It is worth noting that the weight block 1 in this embodiment is an existing structure of the pad limiting device. By placing the weight block 1 between the two elevator doors, it is used to support the position of the limiting device. When the limiting device is used, the two pairs of main limiting components 3 and secondary limiting components 6 on the support column 2 can simultaneously limit and support the edges of the two elevator doors. Then, by using the limiting clamp 7, it is easy to pull the two sets of main limiting components 3 and secondary limiting components 6 toward the support column 2. Then, by aligning the two limiting clamps 7 with the edges of the elevator doors on both sides, as the limiting clamps 7 are released, the main limiting components 3 and secondary limiting components 6 simultaneously squeeze the elevator doors, thereby achieving the limiting treatment of the elevator doors. This increases the ease of use and retraction speed of the limiting device, and solves the problem of tilting the elevator doors when manually retracted by the screw in the prior art.

[0031] Reference Figure 3 and Figure 4As shown, the main limiting component 3 includes an outer tube 301 that penetrates the support column 2, an inner tube 302 that penetrates one end of the outer tube 301, an inner spring 303 disposed in the outer tube 301 at one end of the inner tube 302, and a limiting bolt 306 that penetrates the other end of the outer tube 301 and passes through the inner tube 302. The secondary limiting component 6 has the same structure as the main limiting component 3. When the main limiting component 3 is in use, the outer tube 301 can be fixed on the support column 2, and the two ends of the inner spring 303 are respectively connected to the outer tube 301 and the inner tube 302. 02. By utilizing the elastic contraction of the spring, the outer tube 301 and the inner tube 302 can be elastically connected, allowing the inner tube 302 to be fitted onto the outer tube 301 for expansion and contraction. The total length of the outer tube 301 and the inner tube 302 can be adjusted to provide limiting support for elevator doors of different widths. Then, by tightening the inner tube 302 with the limiting bolt 306, the inner tube 302 is locked to limit the door. Furthermore, the secondary limiting component 6 has the same structure as the main limiting component 3, which facilitates the limiting support of the upper side of the elevator door by the secondary limiting component 6.

[0032] Reference Figure 3 As shown, the outer tube 301 and the inner tube 302 are fitted with the same outer spring 304. The outer spring 304 is fixedly connected to the other end of the inner tube 302, and the other end of the outer spring 304 abuts against the support column 2.

[0033] It is worth noting that the use of the outer spring 304 increases the structural integration of the outer tube 301 and the inner tube 302, providing simultaneous protection for both the outer tube 301 and the inner tube 302. Both ends of the outer spring 304 are equipped with rubber rings; one rubber ring is attached to the surface of the support column 2, and the other rubber ring is attached to the limiting clamp 7, thus limiting the outer spring 304 at both ends and preventing it from falling off. During use, the inner tube 302 presses against the outer tube 301, causing both the outer spring 304 and the inner spring 303 to be simultaneously compressed, pressing the inner tube 302 into the interior of the outer tube 301. This allows for horizontal movement of the inner tube 302, adjusting the total length of the outer tube 301 and the inner tube 302, facilitating the use of the main limiting component 3 for limiting elevator openings of different widths.

[0034] Reference Figure 3 and Figure 4 As shown, a rubber block 305 is provided in the middle of the inner spring 303. The rubber block 305 is used to reduce the swaying force generated when the inner spring 303 contracts or extends, and to increase the stability of the inner tube 302 during extension and retraction. It can effectively support the unloading of the inner spring 303 and the outer spring 304.

[0035] Reference Figure 2 and Figure 5As shown, the support column 2 has sliding openings 201 on three sides that cooperate with the limiting slide 4, and sliding grooves 202 in the support column 2 that cooperate with the limiting slide 4. When the limiting slide 4 is in use, the slide is installed through the three sliding openings 201. The position of the slide is moved by adjusting the vertical height of the limiting slide 4. The height of the limiting device is adjusted by the slide installed longitudinally in the support column 2 and the movement of the limiting slide 4 in the sliding groove 202.

[0036] Reference Figure 4 and Figure 5 As shown, the limiting slide 4 includes a slider 401 that slides into the slide opening 201, a through opening 402 in the middle of the slider 401, a sliding end 403 that passes through the slide groove 202 at the rear end of the slider 401, and a rotating bolt 404 that passes through the upper end of the slider 401. When the limiting slide 4 is in use, the slider 401 is slidably mounted on the front side of the support column 2, the sliding end 403 is slidably mounted inside the support column 2, and the tightening head of the tightening bolt 404 is located on the outside of the support column 2 to facilitate manual tightening by the user. By tightening the tightening bolt 404 into the slide groove 202 by the user, the position of the slider 401 can be limited, thus fixing the position of the slider 401. The through opening 402 facilitates the passage of the traction rope 502 through the slider 401, providing conditions for the connection of the receiving component 5 with the main limiting component 3 and the limiting slide 4.

[0037] Reference Figure 2 and Figure 3 As shown, the receiving component 5 includes a rotating shaft 501 rotatably mounted in the support column 2 and a traction rope 502 wound around the outside of the rotating shaft 501. The traction rope 502 is made of rubber. The two ends of the traction rope 502 are connected to the limiting slide 4 and the main limiting component 3, respectively. One end of the traction rope 502 is fixedly connected to the tail end of the inner tube 302 in the main limiting component 3, and the other end of the traction rope 502 is fixedly connected to the slider 401 in the limiting slide 4. When the inner tube 302 is pressed into the outer tube 301, the tension on one end of the traction rope 502 decreases, and it is pulled back into the rotating shaft 501. Then, by pulling the limiting slide 4 upward, the other end of the traction rope 502 can be pulled out from the rotating shaft 501, which facilitates the height adjustment of the limiting slide 4, realizes the structural pull between the main limiting component 3 and the limiting slide 4, and increases the elevator door support effect of the fiber device.

[0038] Reference Figure 6As shown, the limiting clamp 7 is L-shaped. A limiting end 701 is provided on the side of the limiting clamp 7 away from the main limiting component 3. A frosted sheet 702 is provided on the side of the limiting clamp 7 near the limiting end 701. The limiting clamp 7 and the limiting end 701 form an L-shaped structure. By fitting the L-shaped limiting clamp 7 against the side of the elevator door, the limiting treatment of the elevator door body is achieved. Then, by tightly fitting the frosted sheet 702 against the side of the elevator door, the friction between the frosted sheet 702 and the elevator door body can be increased, thereby improving the supporting effect of the limiting device on the elevator door.

[0039] In this embodiment of the invention, the weight 1 can be placed on the ground. By pulling the two sets of main limiting components 3 and secondary limiting components 6 towards the support column 2, the inner tube 302 in the main limiting components 3 and secondary limiting components 6 is squeezed into the inner spring 303 and pressed into the outer tube 301. The outer spring 304 then contracts, shortening the total length of the main limiting components 3 and secondary limiting components 6. The shortened traction rope 502 is wrapped around the outside of the rotating shaft 501 by its own elastic contraction force. Then, the weight 1 is pushed to move the weight 1 to the two... Between the elevator doors, release the main limiting assembly 3 and the secondary limiting assembly 6, causing the inner spring 303 and outer spring 304 in the main limiting assembly 3 and the secondary limiting assembly 6 to extend to the side of the elevator door. This causes the inner tube 302 to extend out of the outer tube 301, bringing the frosted plate 702 of the limiting clamp 7 into contact with the side of the elevator door, and the limiting end 701 into contact with the front of the elevator door, thus achieving lateral limiting of the elevator door. Then, pull the limiting slide 4, causing the traction rope 502 to extend from the outer surface of the rotating shaft 501, sliding the limiting slide 4 towards the upper side of the support column 2, thus expanding the main limiting position. The support area of ​​component 3 and secondary limit component 6 for the elevator door is then determined. A rotating bolt 404 is used to tightly fit the rear end of the bolt body against the groove wall of the slide 202, thus fixing the limit slide 4 on the support column 2. Next, the limit bolt 306 on the main limit component 3 and secondary limit component 6 is used to pass through the inner tube 302, limiting the length of the inner tube 302 extending beyond the outer tube 301, thus fixing the length of the main limit component 3 and secondary limit component 6, completing the installation of the limit components with the elevator door. When the limit components... When dismantling, loosening the limit bolt 306 pulls the main limit component 3 and the secondary limit component 6 toward the support column 2, moving the limit device out between the elevator doors. The limit clamp 7 separates from the elevator door, and then the elastic reset of the inner spring 303 and the outer spring 304 allows the main limit component 3 and the secondary limit component 6 to quickly return to their initial state. Then, loosening the rotating bolt releases the limit slide 4 from the slide groove 202, and the traction rope 502 can pull the limit slide 4 back to the lower side of the support column 2, realizing the rapid reset of the limit device and improving its storage convenience.

[0040] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An elevator door stop device for elevator maintenance, comprising a weight (1), characterized in that: The top of the weight block (1) is fixedly connected with a supporting column (2), the lower ends of the supporting column (2) are provided with a main limiting assembly (3) penetratingly on both sides, the upper end of the supporting column (2) is provided with two limiting sliding seats (4) slidingly, the inside of the supporting column (2) between the main limiting assembly (3) and the limiting sliding seat (4) is provided with a same receiving assembly (5), the middle part of the limiting sliding seat (4) and the supporting column (2) is provided with a same auxiliary limiting assembly (6) penetratingly, and the same end of the main limiting assembly (3) and the auxiliary limiting assembly (6) is provided with a limiting clamp (7).

2. The elevator door limiting device for maintenance of an elevator according to claim 1, characterized by The main limiting assembly (3) comprises an outer tube (301) penetrating the supporting column (2), an inner tube (302) provided penetratingly at one end of the outer tube (301), an inner spring (303) provided in the outer tube (301) at one end of the inner tube (302), and a limiting pin (306) provided penetratingly at the other end of the outer tube (301) and the inner tube (302), and the auxiliary limiting assembly (6) is the same as the main limiting assembly (3).

3. The elevator door limiting device for maintenance of an elevator according to claim 2, characterized by The outer tube (301) and the inner tube (302) are provided with a same outer spring (304) outside, the other end of the outer spring (304) is fixedly connected with the inner tube (302), and the other end of the outer spring (304) abuts against the supporting column (2).

4. The elevator door limiting device for maintenance of an elevator according to claim 2, characterized by The middle part of the inner spring (303) is provided with a rubber block (305).

5. The elevator door limiting device for maintenance of an elevator according to claim 1, wherein Three sides of the supporting column (2) are provided with a sliding opening (201) matched with the limiting sliding seat (4) and a sliding groove (202) provided in the supporting column (2) and matched with the limiting sliding seat (4).

6. The elevator door limiting device for maintenance of an elevator according to claim 5, wherein The limiting sliding seat (4) comprises a sliding block (401) slidingly connected with the sliding opening (201), a through hole (402) provided in the middle part of the sliding block (401), a sliding end (403) provided penetratingly at the rear end of the sliding block (401) and the sliding groove (202), and a rotating pin (404) provided penetratingly at the upper end of the sliding block (401).

7. The elevator door limiting device for maintenance of an elevator according to claim 1, wherein The receiving assembly (5) comprises a rotating shaft (501) provided rotatingly in the supporting column (2) and a traction rope (502) wound outside the rotating shaft (501), the traction rope (502) is made of rubber material, and the two ends of the traction rope (502) are connected with the limiting sliding seat (4) and the main limiting assembly (3) respectively.

8. The elevator door limiting device for maintenance of an elevator according to claim 1, characterized by The limiting clamp (7) is an L-shaped plate, a limiting end (701) is arranged on the side of the limiting clamp (7) away from the main limiting assembly (3), and a frosted piece (702) is arranged on the side of the limiting clamp (7) close to the limiting end (701).

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