Elevator car roof maintenance safety protection device

Abstract

The utility model relates to the technical field of elevator car maintenance, in particular to an elevator car roof maintenance safety protection device which adopts a detachable simple safety belt structure, is lower in cost and small in occupied upper space and improves practicability. Comprising an elevator car and further comprises a threaded sleeve seat, a threaded rod, a limiting piece, a lantern ring, a safety rope, a connecting belt, a shoulder belt, an adjusting clamp, a bellyband and a buckle, the middle of the top end of the elevator car is connected with the bottom end of the threaded sleeve seat, the inner side of the threaded sleeve seat is detachably screwed with the outer side of the threaded rod, and the top end of the threaded rod is connected with the middle of the bottom end of the limiting piece; one side of the outer end of the lantern ring is connected with the middle of the rear side of a connecting band through a safety rope, the left and right sides of the connecting band are respectively connected with the rear middle sides of the inner ends of a group of shoulder straps, the front side of each group of connecting band is provided with a group of adjusting clamps, the lower sides of the inner ends of the two groups of shoulder straps are connected with bellybands, and buckles are arranged in the bellybands.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator car maintenance, in particular to an elevator car top maintenance safety protection device. Background Art

[0002] The car is a box-shaped space used by the elevator to carry and transport people and materials. The car is generally composed of the car bottom, car wall, car top, car door and other main parts. It is the car body part used by the elevator to carry passengers or goods and other loads. The ceiling is usually made of mirror stainless steel; the car bottom is 2mm thick PVC marble pattern or 20mm thick marble mosaic.

[0003] Some elevator car failures require corresponding maintenance on the top of the box, and in order to ensure the safety of maintenance personnel, corresponding safety protection devices need to be set. There is currently a car top guardrail device with Chinese patent publication number CN212356111U. If the elevator box loses control and hits the ceiling, the pressing device is forced to move downward, and the fixing device is opened by touching the switch of the fixing device, so that the insert tube and the pipe lose their support points, the insert tube falls off into the pipe, and the height of the entire guardrail device becomes lower, which can effectively protect the guardrail from being damaged; the pressing spring has a large elastic force and can only be deformed under a large impact force, which can effectively prevent maintenance personnel from accidentally touching the pressing device and causing danger; the upper end of the protrusion is a smooth hemispherical shape, which can prevent the upper end of the protrusion from being stuck, resulting in the bolt body being unable to leave the outer hole in time.

[0004] However, the device is relatively expensive, occupies a large upper space, and is not practical enough. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides an elevator car top maintenance safety protection device which uses a simple detachable safety belt structure, has lower cost, occupies less upper space and has improved practicality.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an elevator car top inspection and protection device, including an elevator car, and also including a threaded sleeve, a threaded rod, a limit plate, a ring, a safety rope, a connecting belt, a shoulder strap, an adjustment card, a belly belt and a buckle. The middle part of the top of the elevator car is connected to the bottom end of the threaded sleeve, the inner side of the threaded sleeve and the outer side of the threaded rod are detachably screwed, the top of the threaded rod is connected to the middle part of the bottom end of the limit plate, one side of the outer end of the ring is connected to the middle part of the rear side of the connecting belt through a safety rope, the left and right sides of the connecting belt are respectively connected to the rear middle side of the inner end of a group of shoulder straps, a group of adjustment cards are respectively arranged on the front side of each group of connecting belts, the lower sides of the inner ends of the two groups of shoulder straps are connected to the belly belt, and a buckle is arranged inside the belly belt.

[0009] Preferably, it also includes a first through groove, a second through groove, a long axis bolt and a fixing nut. The first through groove is horizontally arranged inside the threaded sleeve, and the second through groove is arranged at the lower part of the threaded rod. The outer side of the long axis bolt and the inner side of the fixing nut are detachably screwed together.

[0010] Preferably, it also includes a rocker and a crank handle, the middle part of the top end of the limiting plate is connected to one side of the bottom end of the rocker, and the other side of the top end of the rocker is rotatably connected to the bottom end of the crank handle.

[0011] Preferably, it also includes a connecting piece and a dust plug, wherein one side of the outer end of the threaded sleeve is connected to one side of the connecting piece, and the middle of the top end of the other side of the connecting piece is connected to the bottom end of the dust plug.

[0012] Preferably, it further comprises a pull ring, and the middle part of the bottom end of the other side of the connecting piece is connected to the top side of the pull ring.

[0013] Preferably, it further comprises contact pads, and each group of the adjustment cards and the rear side of the buckles are respectively connected with a group of contact pads.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides an elevator car top maintenance safety protection device, which has the following beneficial effects:

[0016] When inspecting the top of the car, the ring is put on the outside of the threaded rod, and then the threaded rod is rotated and screwed into the inside of the threaded sleeve. The ring can be movably connected to the outside of the threaded rod through the upper limit of the limit plate. After that, the maintenance personnel put two sets of shoulder straps on the outside of the two shoulders, adjust and fix them with the adjustment card, and then snap the abdominal belt into place with the buckle for wearing reinforcement. It is then connected with the connecting belt and the safety rope to form a fall protection with a certain range of movement. A simple detachable safety belt structure is used, which has lower cost, occupies less upper space, and improves practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an axial view of the schematic diagram of the structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 The top view of

[0019] Figure 3 For this utility model Figure 1 Front view of

[0020] Figure 4 For this utility model Figure 1 Right view of .

[0021] Markings in the attached figure: 1. elevator car; 2. threaded sleeve; 3. threaded rod; 4. limit plate; 5. ring; 9. safety rope; 10. connecting belt; 11. shoulder strap; 12. adjustment card; 13. abdominal belt; 14. buckle; 15. slot one; 16. slot two; 17. long axis bolt; 18. fixing nut; 19. rocker; 20. crank; 21. connecting plate; 22. dust plug; 23. pull ring; 24. contact pad. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example

[0024] See also Figure 1-Figure 4 A safety protection device for inspection and maintenance of an elevator car top includes an elevator car 1, and also includes a threaded sleeve 2, a threaded rod 3, a limit plate 4, a collar 5, a safety rope 9, a connecting belt 10, a shoulder strap 11, an adjustment card 12, a belly belt 13 and a buckle 14. The middle of the top of the elevator car 1 is connected to the bottom of the threaded sleeve 2, the inner side of the threaded sleeve 2 and the outer side of the threaded rod 3 are detachably screwed, the top of the threaded rod 3 is connected to the middle of the bottom of the limit plate 4, one side of the outer end of the collar 5 is connected to the middle of the rear side of the connecting belt 10 through the safety rope 9, and the left and right sides of the connecting belt 10 are respectively connected to the middle of the inner end of a group of shoulder straps 11, and the front of each group of connecting belts 10 is connected to the middle of the inner end of the shoulder straps 11. A group of adjustment cards 12 are respectively provided on the sides, and the lower sides of the inner ends of the two groups of shoulder straps 11 are connected with abdominal belts 13, and buckles 14 are provided in the abdominal belts 13; when inspecting the top of the car, the ring 5 is put on the outside of the threaded rod 3, and then the threaded rod 3 is rotated and screwed into the inner side of the threaded sleeve 2. The ring 5 can be movably connected to the outside of the threaded rod 3 through the upper side limit of the limit plate 4. After that, the maintenance personnel put the two groups of shoulder straps 11 on the outside of the two shoulders, adjust and fix them through the adjustment cards 12, and then clamp the abdominal belt 13 through the buckle 14 for wearing and reinforcement, so as to connect it with the connecting belt 10 and the safety rope 9 to form an anti-fall protection with a certain range of movement.

[0025] It also includes a through groove 15, a through groove 16, a long axis bolt 17 and a fixing nut 18. The threaded sleeve 2 is laterally provided with a through groove 15, the lower part of the threaded rod 3 is provided with a through groove 16, and the outer side of the long axis bolt 17 and the inner side of the fixing nut 18 are detachably screwed together; after the threaded rod 3 is screwed into place in the limiting plate 4, the through groove 15 and the through groove 16 can be made to correspond to each other, and then the long axis bolt 17 is passed through the through groove 15 and the through groove 16, and the fixing nut 18 is screwed onto the outer side of the long axis bolt 17, so that the threaded rod 3 can be rotationally limited to prevent the threaded rod 3 from being loosened when screwed in the threaded sleeve 2, thereby improving reliability.

[0026] It also includes a rocker 19 and a crank 20. The middle part of the top of the limiting plate 4 is connected to one side of the bottom end of the rocker 19, and the other side of the top of the rocker 19 is rotatably connected to the bottom end of the crank 20. By holding the crank 20, the rocker 19 can be rotated, and then connected to the threaded rod 3 through the limiting plate 4 for rotation, which facilitates screw installation and unloading and improves convenience.

[0027] It also includes a connecting piece 21 and a dust plug 22. One side of the outer end of the threaded sleeve 2 is connected to one side of the connecting piece 21, and the middle of the top of the other side of the connecting piece 21 is connected to the bottom end of the dust plug 22. The dust plug 22 can be connected to prevent loss through the connecting piece 21, and when not in use, the dust plug 22 can be inserted into the threaded sleeve 2 to prevent dust and improve reliability.

[0028] It also includes a pull ring 23, and the middle of the bottom end of the other side of the connecting piece 21 is connected to the top side of the pull ring 23; by hooking the pull ring 23, the connecting piece 21 can be connected, so that the dust plug 22 can be installed and removed in the threaded sleeve 2, which improves convenience.

[0029] It also includes contact pads 24, and each set of adjustment cards 12 and buckles 14 are respectively connected to a set of contact pads 24 on the rear side; the adjustment cards 12 and the rear sides of the buckles 14 can contact corresponding parts of the human body through the contact pads 24 to avoid injuries and improve comfort.

[0030] In summary, when an elevator car top maintenance safety protection device is in use, when the car top is being inspected, the collar 5 is put on the outside of the threaded rod 3, and then the crank handle 20 is held to rotate the rocker 19, and then the threaded rod 3 is connected to the limit plate 4 for rotation, and the threaded rod 3 is rotated and screwed into the inner side of the threaded sleeve 2. After the threaded rod 3 is screwed into place in the limit plate 4, the through groove 15 and the through groove 2 16 can be made to correspond, and then the long axis bolt 17 is passed through the through groove 15 and the through groove 2 16, and the fixing nut 18 is screwed on the outside of the long axis bolt 17, which can limit the rotation of the threaded rod 3 to prevent the threaded rod 3 from being screwed in the threaded sleeve 2. The installation is loose, and the upper side of the limiting plate 4 is limited, so that the ring 5 can be movably connected to the outside of the threaded rod 3. Then the maintenance personnel put the two sets of shoulder straps 11 on the outside of the two shoulders, adjust and fix them through the adjusting card 12, and then clamp the abdominal belt 13 through the buckle 14 to reinforce the wearing. The adjusting card 12 and the back side of the buckle 14 can be made to contact with the corresponding part of the human body through the contact pad 24 to avoid injury, so as to form a certain range of activity anti-fall protection through the connecting belt 10 and the safety rope 9. In addition, the dust plug 22 can be connected to prevent loss through the connecting plate 21, and when not in use, the pull ring 23 can be hooked to insert the dust plug 22 into the threaded sleeve 2 for dust prevention.

[0031] This elevator car 1 is a well-known device purchased directly from the market by technicians in this field. We only use it here without making any structural or functional improvements to it, so we will not go into details here.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elevator car top maintenance safety protection device, comprising an elevator car (1), characterized in that: The invention also comprises a threaded sleeve (2), a threaded rod (3), a limiting plate (4), a collar (5), a safety rope (9), a connecting belt (10), a shoulder strap (11), an adjustment clip (12), an abdominal belt (13) and a buckle (14); the middle part of the top end of the elevator car (1) is connected to the bottom end of the threaded sleeve (2); the inner side of the threaded sleeve (2) and the outer side of the threaded rod (3) are detachably screwed together; the top end of the threaded rod (3) is connected to the middle part of the bottom end of the limiting plate (4); one side of the outer end of the collar (5) is connected to the middle part of the rear side of the connecting belt (10) through the safety rope (9); the left and right sides of the connecting belt (10) are respectively connected to the middle part of the rear inner end of a group of shoulder straps (11); a group of adjustment clips (12) are respectively arranged on the front side of each group of connecting belts (10); the lower sides of the inner ends of the two groups of shoulder straps (11) are connected to the abdominal belt (13); and the buckle (14) is arranged inside the abdominal belt (13).

2. The elevator car top maintenance safety protection device according to claim 1 is characterized in that: It also comprises a first through groove (15), a second through groove (16), a long axis bolt (17) and a fixing nut (18); the first through groove (15) is transversely arranged inside the threaded sleeve (2); the second through groove (16) is arranged at the lower part of the threaded rod (3); the outer side of the long axis bolt (17) and the inner side of the fixing nut (18) are detachably screwed together.

3. The elevator car top maintenance safety protection device according to claim 1 is characterized in that: It also comprises a rocking piece (19) and a crank (20), wherein the middle portion of the top end of the limiting piece (4) is connected to one side of the bottom end of the rocking piece (19), and the other side of the top end of the rocking piece (19) is rotatably connected to the bottom end of the crank (20).

4. The elevator car top maintenance safety protection device according to claim 1 is characterized in that: It also comprises a connecting piece (21) and a dust plug (22), wherein one side of the outer end of the threaded sleeve (2) is connected to one side of the connecting piece (21), and the middle part of the top end of the other side of the connecting piece (21) is connected to the bottom end of the dust plug (22).

5. The elevator car top maintenance safety protection device according to claim 4 is characterized in that: It also comprises a pull ring (23), and the middle part of the bottom end of the other side of the connecting piece (21) is connected to the top side of the pull ring (23).

6. The elevator car top maintenance safety protection device according to claim 1 is characterized in that: It also includes contact pads (24), and each group of the adjustment cards (12) and buckles (14) are respectively connected to a group of contact pads (24) on the rear side.

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