Elevator maintenance warning board

Abstract

An elevator maintenance warning board comprises a warning board body and adsorption devices arranged on the two sides of the warning board body, each adsorption device comprises a magnetic block installation strip connected to the warning board body, and an installation groove is formed in the face, back to the warning board body, of each magnetic block installation strip. And a plurality of magnetic blocks are sequentially arranged in the mounting groove from top to bottom. The elevator maintenance warning board has low requirements on flatness and smoothness of an adsorbed object, is automatically adsorbed by magnetism during adsorption and is convenient to use, an adsorption part is not easy to damage, and the service life of the whole elevator maintenance warning board is long.

Description

Technical Field

[0001] The utility model relates to an elevator maintenance warning sign, belonging to the technical field of elevator maintenance warning. Background Art

[0002] An elevator is a device used to transport people or goods vertically. When an elevator is undergoing maintenance, a warning sign should be placed at the elevator entrance to alert pedestrians that the elevator is under maintenance and cannot be used. This helps prevent pedestrians from entering the elevator, which could result in danger.

[0003] Common elevator maintenance warning signs are placed directly on the ground when in use and are easily taken away or removed, such as the warning sign in the authorization announcement number CN 220474082 U.

[0004] Chinese patent application number CN 218214494 U discloses an easily accessible elevator maintenance warning sign. The sign comprises a warning frame with a mounting plate attached to its outer wall via a rotating shaft. The mounting plate has a strong suction cup on its sidewall. The inner wall of the warning frame has a mounting groove within which the warning sign is positioned. This technical solution attaches the warning sign to the wall near the elevator via suction.

[0005] However, when using suction cups for adsorption, first, each suction cup needs to be pressed to exhaust air to form a negative pressure between it and the wall, and it needs to be pressed into place, so it is not very convenient to use. Secondly, the flatness and smoothness of the wall (i.e., the adsorption object) must be high. Once the wall is not flat enough or the wall is not smooth enough, the adsorption effect is poor. Moreover, the suction cup has the defect of fast wear and tear, so the warning sign needs to be repaired and maintained for a long time. Utility Model Content

[0006] In response to the shortcomings of the existing technology, the present application provides an elevator maintenance warning sign, which has low requirements for the flatness and smoothness of the adsorption object, uses magnetism to self-adsorb during adsorption, is easy to use, the adsorption components are not easily damaged, and the entire elevator maintenance warning sign has a long service life.

[0007] An elevator maintenance warning sign comprises a warning sign body and adsorption devices arranged on both sides of the warning sign body. The adsorption device comprises a magnetic block mounting strip connected to the warning sign body. The magnetic block mounting strip is provided with a mounting groove on the surface facing away from the warning sign body. A plurality of magnetic blocks are arranged in sequence from top to bottom in the mounting groove.

[0008] Preferably, it further comprises a magnetic isolation structure arranged on the side of the magnetic block mounting bar;

[0009] The magnetic isolation structure includes a magnetic isolation plate and a covering shell. The magnetic isolation plate is slidably arranged in the covering shell and is used to slide laterally into the mounting groove to isolate the magnetic block. An operating hole is provided on the covering shell. A connecting hole for connecting an operating handle is provided on the side of the magnetic isolation plate facing the operating hole. A clearance opening for the magnetic isolation plate to pass through is provided on the magnetic block mounting strip.

[0010] Preferably, the connection hole is a threaded connection hole.

[0011] Preferably, a clamping portion is provided at one end of the magnetic isolation plate away from the operating hole, and a clamping groove for cooperating with the clamping portion is provided on the inner wall surface of the magnetic block mounting strip.

[0012] Preferably, the magnetic isolation structure is arranged on the inner side of the adsorption device.

[0013] Preferably, a guide mechanism for guiding the magnetic isolation plate is provided in the cover shell; the guide mechanism comprises guide blocks located on both sides of the magnetic isolation plate, the guide blocks on both sides form a guide groove, and the magnetic isolation plate is clamped in the guide groove.

[0014] Preferably, the warning sign body includes a middle sign body portion, a side adjustment sign body portion which is arranged on both sides of the middle sign body portion and is slidably connected to the middle sign body portion and the sliding direction is the width direction of the middle sign body portion, and the adsorption device and the magnetic isolation structure are both arranged on the side adjustment sign body portion.

[0015] Preferably, the side surface of the side adjustment card body is provided with a plurality of insertion rods inserted into the side surface of the middle card body, and the middle card body is provided with a plurality of insertion holes corresponding to the plurality of the insertion rods, and the hole wall of the insertion hole is provided with a limiting groove for limiting the sliding distance of the insertion rod, and the insertion rod is provided with a limiting action part limited to the limiting groove.

[0016] In summary, the present invention has the following beneficial effects:

[0017] 1: This utility model adopts magnetic adsorption, which has low requirements on the flatness and smoothness of the adsorbed object. It uses magnetism to adsorb itself during adsorption, is easy to use, and the adsorption components are not easily damaged. The entire elevator maintenance warning sign has a long service life.

[0018] 2: The utility model is provided with a magnetic isolation plate that can slide laterally into the installation groove, which makes it convenient for maintenance personnel to remove the elevator maintenance warning sign from the door cover column. At the same time, the magnetic isolation plate is set in the covering shell, and an operating hole is set on the covering shell, and a connecting hole is set on the magnetic isolation plate, so that only maintenance personnel can move the magnetic isolation plate and remove the elevator maintenance warning sign from the door cover column. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic diagram of the structure of the elevator maintenance warning sign;

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is the layout diagram of the adsorption device and the magnetic isolation structure;

[0022] Figure 4 This is a schematic diagram of the structure of the warning sign;

[0023] Figure 5 It is a structural diagram of the operating handle. DETAILED DESCRIPTION

[0024] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings.

[0025] Example:

[0026] An elevator maintenance warning sign, such as Figure 1-3 As shown, it includes a warning sign body 1 and adsorption devices 2 arranged on both sides of the warning sign body 1.

[0027] The adsorption device 2 includes a magnetic mounting strip 21 connected to the warning sign body 1. The magnetic mounting strip 21 and the warning sign body 1 can be connected using fastening screws. The surface of the magnetic mounting strip 21 facing away from the warning sign body 1 is provided with a mounting groove 22. The mounting groove 22 is provided with a plurality of magnets 23 arranged sequentially from top to bottom. The magnets 23 are specifically arranged at the bottom of the mounting groove 22. When in use, the elevator maintenance warning sign is placed in front of the elevator door and the two adsorption devices 2 are positioned directly opposite the metal door frame columns on both sides of the elevator door. The magnets 23 on the two adsorption devices 2 jointly adsorb the entire elevator maintenance warning sign to the two door frame columns, thereby preventing the elevator maintenance warning sign from being removed.

[0028] The above-mentioned elevator maintenance warning sign is fixed by magnetic attraction. Compared with the traditional suction cup adsorption, it has low requirements on the flatness and smoothness of the adsorption object {i.e., the door frame column}. It uses magnetism to adsorb itself during adsorption, so it is easy to use. Moreover, the adsorption components are not easily damaged, and the entire elevator maintenance warning sign has a long service life.

[0029] Generally speaking, it is difficult to ensure that there is no scratching in front of the elevator door, such as children playing and scratching. In order to prevent the elevator maintenance warning sign attached to the door frame column from being removed by scratching, the magnetic block 23 should provide a sufficiently strong magnetic attraction. However, a sufficiently strong magnetic attraction makes it inconvenient for maintenance personnel to remove the elevator maintenance warning sign from the door frame column. To this end, in this embodiment, the elevator maintenance warning sign also includes a magnetic isolation structure 3 arranged on the side of the magnetic block mounting bar 21;

[0030] The magnetic isolation structure 3 includes a magnetic isolation plate 31 and a cover shell 32. The magnetic isolation plate 31 is slidably arranged in the cover shell 32. The length of the magnetic isolation plate 31 is equal to the length of the mounting slot 22. The magnetic isolation plate 31 is used to slide laterally into the mounting slot 22 to isolate the magnetic block 23. The cover shell 32 is provided with a guide mechanism 36 for guiding the magnetic isolation plate 31. The guide mechanism 36 includes guide blocks 361 located on both sides of the magnetic isolation plate 31. The guide blocks 361 on both sides form a guide groove 362. The magnetic isolation plate 31 is stuck in the guide groove 362. The cover shell 3 2 is provided with an operating hole 33, which is provided on the side of the cover shell 32 away from the magnetic block mounting strip 21 and is located at the middle height of the cover shell 32. The side of the magnetic isolation plate 31 facing the operating hole 33 is provided with a connecting hole 34. When the magnetic isolation plate 31 needs to be moved, the connecting hole 34 is used to connect an operating handle that passes through the operating hole 33 from outside the cover shell 32. The operating handle serves as a special tool for the elevator maintenance warning sign and is carried by the maintenance personnel. The magnetic block mounting strip 21 is provided with a clearance opening 24 for the magnetic isolation plate 31 to pass through.

[0031] When the inspection is completed, use the operating handle to pass the operating handle through the operating hole 33 and connect it to the connecting hole 34 on the magnetic isolation plate 31. Use the operating handle to push the magnetic isolation plate 31 so that the magnetic isolation plate 31 isolates the magnetic block 23, so that the maintenance personnel can remove the elevator maintenance warning sign from the door frame column. When the elevator maintenance warning sign is used again, the magnetic isolation plate 31 is pulled by the operating handle so that the magnetic isolation plate 31 is located outside the installation slot 22. In this embodiment, since the magnetic isolation plate 31 is set in the covering shell 32, and the operating hole 33 is set on the covering shell 32, and the connecting hole 34 is set on the magnetic isolation plate 31, only the maintenance personnel can move the magnetic isolation plate 31 and remove the elevator maintenance warning sign from the door frame column, and other personnel other than the maintenance personnel cannot do it.

[0032] In this embodiment, the connection hole 34 is specifically a threaded connection hole. Accordingly, the operating handle is provided with a connection thread connected to the threaded connection hole. The simplest operating handle can be seen in the attached Figure 5 As shown, an L-shaped wrench 4 is shown, and the connecting thread is provided on the long side of the L-shaped wrench 4.

[0033] In this embodiment, a latching portion 35 is provided on the end of the magnetic shielding plate 31 away from the operating hole 33, and a latching slot 25 is provided on the inner wall of the magnetic block mounting strip 21 for mating with the latching portion 35. When the elevator maintenance warning sign is no longer in use, the magnetic shielding plate 31 is pushed by the operating handle so that the latching portion 35 is engaged with the latching slot 25, preventing the elevator maintenance warning sign from being attracted to other metal components during transportation.

[0034] When the maintenance personnel come out of the elevator, in order to facilitate the operation of the operating handle, the magnetic isolation structure 3 is arranged on the inner side of the adsorption device 2, so that the operating handle can be inserted into the operating hole 33 conveniently and quickly.

[0035] See also Figure 4 As shown, the warning sign body 1 includes a middle sign body portion 11 and a side adjustment sign body portion 12. The side adjustment sign body portion 12 is arranged on both sides of the middle sign body portion 11. The side adjustment sign body portion 12 is slidably connected to the middle sign body portion 11 and the sliding direction is the width direction of the middle sign body portion 11. By adjusting the position of the side adjustment sign body portion 12, the width of the warning sign body 1 can be changed, so that the elevator maintenance warning sign is suitable for being adsorbed on the two door frame columns corresponding to elevator doors of different widths. The side surface of the side adjustment card body 12 is provided with multiple insertion rods 13 inserted into the side surface of the middle card body 11. The multiple insertion rods 13 are arranged vertically. The middle card body 11 is provided with multiple insertion holes 14 corresponding to the multiple insertion rods 13. The hole wall of the insertion hole 14 is provided with a limiting groove 15 for limiting the sliding distance of the insertion rod 13. The insertion rod 13 is provided with a limiting action part 16 limited to the limiting groove 15. Through the interaction between the limiting action part 16 and the limiting groove 15, the insertion rod 13 is limited in the insertion hole 14.

[0036] The above embodiments are merely descriptions of preferred implementations of the present invention and are not intended to limit the concept and scope of the present invention. Any modifications and improvements to the technical solution of the present invention made by a person of ordinary skill in the art without departing from the design concept of the present invention shall fall within the scope of protection of the present invention. The technical content sought to be protected by the present invention is fully set forth in the claims.

Claims

1. An elevator maintenance warning sign, comprising a warning sign body (1), and adsorption devices (2) arranged on both sides of the warning sign body (1), characterized in that: The adsorption device (2) comprises a magnetic block mounting strip (21) connected to the warning sign body (1), a mounting groove (22) being provided on a surface of the magnetic block mounting strip (21) facing away from the warning sign body (1), and a plurality of magnetic blocks (23) arranged sequentially from top to bottom being provided in the mounting groove (22).

2. An elevator maintenance warning sign according to claim 1, characterized in that: It also includes a magnetic isolation structure (3) arranged on the side of the magnetic block mounting strip (21); The magnetic isolation structure (3) comprises a magnetic isolation plate (31) and a cover shell (32). The magnetic isolation plate (31) is slidably arranged in the cover shell (32) and is used to slide laterally into the mounting groove (22) to isolate the magnetic block (23). An operating hole (33) is provided on the cover shell (32). A connecting hole (34) for connecting an operating handle is provided on the side of the magnetic isolation plate (31) facing the operating hole (33). A clearance opening (24) for the magnetic isolation plate (31) to pass through is provided on the magnetic block mounting strip (21).

3. An elevator maintenance warning sign according to claim 2, characterized in that: The connecting hole (34) is a threaded connecting hole.

4. The elevator maintenance warning sign according to claim 2, characterized in that: A clamping portion (35) is provided at one end of the magnetic isolation plate (31) away from the operating hole (33), and a clamping groove (25) for cooperating with the clamping portion (35) is provided on the inner wall surface of the magnetic block mounting strip (21).

5. The elevator maintenance warning sign according to claim 2, characterized in that: The magnetic isolation structure (3) is arranged on the inner side of the adsorption device (2).

6. The elevator maintenance warning sign according to claim 2, characterized in that: A guide mechanism (36) for guiding the magnetic isolation plate (31) is provided in the cover shell (32); the guide mechanism (36) comprises guide blocks (361) located on both sides of the magnetic isolation plate (31), the guide blocks (361) on both sides forming a guide groove (362), and the magnetic isolation plate (31) is stuck in the guide groove (362).

7. The elevator maintenance warning sign according to claim 2, characterized in that: The warning sign body (1) comprises a middle sign body portion (11), side adjustment sign body portions (12) arranged on both sides of the middle sign body portion (11) and slidably connected to the middle sign body portion (11), and the sliding direction is the width direction of the middle sign body portion (11), and the adsorption device (2) and the magnetic isolation structure (3) are both arranged on the side adjustment sign body portions (12).

8. The elevator maintenance warning sign according to claim 7, characterized in that: The side surface of the side adjustment card body (12) is provided with a plurality of insertion rods (13) inserted into the side surface of the middle card body (11); the middle card body (11) is provided with a plurality of insertion holes (14) corresponding to the plurality of the insertion rods (13); the hole walls of the insertion holes (14) are provided with limiting grooves (15) for limiting the sliding distance of the insertion rods (13); and the insertion rods (13) are provided with a limiting action portion (16) limited to the limiting grooves (15).

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