Elevator car top protection device

Abstract

The present invention relates to the technical field of elevator protective equipment, and discloses an elevator car top protective device, including two groups of symmetrically arranged foldable brackets, each group of foldable brackets includes two first brackets and two second brackets, the two first brackets are located between the two second brackets, the two first brackets are connected by a first base, the first bracket and the second bracket are connected by a second base, the first bracket and the second bracket are both provided with extension frames on the top, and the two groups of foldable brackets are connected by a connecting seat. The present invention achieves the purpose of easy splicing, automatic folding, and easy carrying through the cooperation of two foldable brackets and two connecting seats, and avoids the situation where a fixed protective device is set on the top of the elevator, is exposed to the air for a long time, is difficult to repair, and is more prone to corrosion, aging, and performance degradation.

Description

Technical Field

[0001] The invention relates to the technical field of elevator protective equipment, in particular to an elevator car top protective device. Background Art

[0002] An elevator is a permanent transportation device that serves several specific floors in a building. Its car runs on at least two rows of rigid tracks that are perpendicular to the horizontal plane or have an inclination angle of less than 15° to the plumb line. The equipment to ensure the safe operation of the elevator is basically installed on the top of the elevator. During installation and maintenance, staff need to climb to the top of the elevator to carry out their work. Therefore, protective devices are generally installed on the top of the elevator to provide safety protection for the workers on the car top.

[0003] The existing elevator car top maintenance protection device has a foldable movable protective plate on the top of the elevator car. When the elevator maintenance personnel perform maintenance and inspection on the top of the car, they only need to flip the movable protective plates on both sides and stand them upright, and extend the extended baffles on both sides of the movable protective plates from the sliding grooves, and then rotate the protective rods on the surfaces of the extended baffles to an angle perpendicular to the extended baffles, and use a support assembly to combine and connect the extension rods on both sides, and at the same time use the support assembly to support and fix the protective rods, thereby achieving the purpose of strengthening the protective structure.

[0004] The protective devices are directly installed on the top of the elevator. These protective devices will be exposed to the air all the time. As the use time increases, they may rust, which will cause the performance of the protective devices to decline. There are certain safety hazards. In addition, when inspecting the power equipment on the top of the car, the protective devices also need to be inspected, which increases the workload during inspection. Summary of the invention

[0005] The object of the present invention is to provide an elevator car top protection device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The present invention is an elevator car top protection device, comprising two groups of symmetrically arranged foldable brackets, each group of foldable brackets comprising two first brackets and two second brackets, the two first brackets being located between the two second brackets; and further comprising:

[0008] The two first brackets are connected via a first base;

[0009] The first bracket and the second bracket are connected via a second base;

[0010] The first bracket and the second bracket are both provided with extension brackets on the top;

[0011] The two groups of foldable brackets are connected via a connecting seat.

[0012] Furthermore, two threaded cylinders with openings facing upwards are symmetrically fixedly installed in the middle of the first bracket and the second bracket, and sockets are provided on the tops of the two side arms of the first bracket and the second bracket. Four connecting blocks are evenly fixedly connected to one side of the first bracket close to the first base. The first bracket is fixedly installed with a column through the four connecting blocks, and three groups of tooth grooves are evenly provided on the column.

[0013] Furthermore, one end of the first bracket close to the second base has the same features as one end of the second bracket close to the second base, the one end of the first bracket close to the second base is symmetrically fixedly connected with two upper and lower protrusions, the ends of the two protrusions away from each other are fixedly connected with connecting columns, a vertical rod is fixedly installed between the two protrusions, three groups of tooth grooves 2 are opened on the side wall of the vertical rod, two inclined plates are fixedly connected to the side wall of the vertical rod, the two inclined plates and the three groups of tooth grooves 2 are staggered, and the end of the inclined plate away from the vertical rod is fixedly connected with a sliding rod.

[0014] Furthermore, three through holes are evenly formed on the side wall of the first base, two mounting holes are formed at both ends of the first base, the column is rotatably installed between the two corresponding mounting holes, and a stopper is provided in the middle of the bottom of the first base.

[0015] Furthermore, one end of the first base away from the stopper is evenly fixedly connected with three cylindrical tubes, a sliding rod is slidably installed inside the through hole, one end of the sliding rod is fixedly connected with a circular plate, the circular plate is slidably arranged inside the cylindrical tube, a spring is fixedly installed between the circular plate and the side wall of the first base, a transmission groove is opened at one end of the sliding rod away from the cylindrical tube, and the sliding rod is transmission-connected with the tooth grooves on both sides at the same time through the transmission groove.

[0016] Furthermore, two through holes are evenly opened on the side wall of the second base, two mounting holes are opened at both ends of the second base, the connecting columns are rotatably installed in the corresponding mounting holes, four openings are symmetrically opened on the inner wall of the second base, and four arc grooves are symmetrically opened inside the second base, and each arc groove is connected to the outside through a corresponding opening.

[0017] Further, three cylindrical tubes 2 are evenly fixedly connected to the outer side wall of the second base, a sliding rod 2 is slidably installed inside the through hole 2, one end of the sliding rod 2 is fixedly connected to a circular plate 2, the circular plate 2 is slidably arranged inside the cylindrical tube 2, a spring 2 is fixedly installed between the circular plate 2 and the side wall of the second base, a transmission groove 2 is opened at one end of the sliding rod 2 away from the cylindrical tube 2, the sliding rod 2 is transmission-connected to the tooth grooves 2 on both sides at the same time through the transmission groove 2, and the sliding rod is slidably arranged inside the arc groove;

[0018] Spring one and spring two have a tendency to rebound. When spring one rebounds, the angle between the two first brackets decreases, and the two second brackets approach each other, so that the two second brackets can be clamped on the elevator. The angle between the first bracket and the second bracket also has a tendency to decrease, and a clamping force is applied to the connecting tube. When the two sets of foldable brackets are assembled with the two connecting seats, a pulling force is generated between the two, avoiding the risk of a single foldable bracket slipping, thereby enhancing the protective effect of the device.

[0019] Furthermore, both ends of the lower surface of the extension frame are fixedly connected with plug rods, and the two plug rods are respectively inserted into the sockets at both ends of the first bracket or the second bracket. Two threaded rods are symmetrically installed in the middle of the lower surface of the extension frame. The threaded rods are respectively arranged in a corresponding threaded tube. The threaded rods are threadedly connected to the threaded tube, and the thread pitch of the threaded rods is relatively long.

[0020] Furthermore, two connecting tubes are symmetrically and fixedly connected to the upper surface of the connecting seat, and side plates are fixedly connected to the side walls of the two connecting tubes that are away from each other.

[0021] The present invention has the following beneficial effects:

[0022] (1) During installation, the first spring and the second spring have a tendency to rebound. When the first spring rebounds, the angle between the two first brackets decreases, and the two second brackets move closer to each other, so that the two second brackets can be clamped on the elevator. The angle between the first bracket and the second bracket also has a tendency to decrease, and a clamping force is applied to the connecting tube. When the two groups of foldable brackets are assembled with the two connecting seats, a pulling force is generated between the two groups, thereby avoiding the risk of a single foldable bracket slipping off and enhancing the protective effect of the device.

[0023] (2) After the construction of the present invention is completed, the device is disassembled. Due to the elasticity of the spring, the protective device will automatically fold and be easy to carry. In addition, by using a detachable protective device, it is avoided that the fixed protective device is more susceptible to corrosion and aging and performance degradation.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the installation of the foldable bracket and the connecting seat of the present invention;

[0028] Figure 3 This is a schematic diagram of the installation structure of the first bracket of the present invention;

[0029] Figure 4 It is a schematic diagram of the extension frame structure of the present invention;

[0030] Figure 5 This is a schematic diagram of the first bracket structure of the present invention;

[0031] Figure 6 This is a schematic diagram of the first base structure of the present invention;

[0032] Figure 7 is a schematic diagram of the second bracket structure of the present invention;

[0033] Figure 8 It is a schematic diagram of the second base structure of the present invention;

[0034] Fig. 9 This is a schematic diagram of the internal structure of the first base of the present invention;

[0035] Fig.10 This is a schematic diagram of the internal structure of the second base of the present invention;

[0036] Fig.11 It is a schematic diagram of the connection between the second base and the sliding rod of the present invention;

[0037] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0038] In the figure: 1, foldable bracket; 2, first bracket; 201, threaded barrel; 202, jack; 21, connecting block; 22, column; 221, tooth groove 1; 23, convex block; 231, connecting column; 24, vertical rod; 241, tooth groove 2; 242, inclined plate; 243, sliding rod; 3, second bracket; 4, first base; 401, through hole 1; 41, mounting hole 1; 42, stopper; 43, cylindrical barrel 1; 44 , sliding rod one; 441, circular plate one; 45, spring one; 46, transmission groove one; 5, second base; 501, through hole two; 51, mounting hole two; 52, opening; 521, arc groove; 53, cylindrical tube two; 54, sliding rod two; 541, circular plate two; 55, spring two; 56, transmission groove two; 6, extension frame; 61, plug rod; 62, threaded rod; 7, connecting seat; 71, connecting tube; 72, side plate. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1 - Fig.11 As shown, the present invention is an elevator car top protection device, comprising two groups of symmetrically arranged foldable brackets 1, each group of foldable brackets 1 comprising two first brackets 2 and two second brackets 3, the two first brackets 2 being located between the two second brackets 3; and further comprising:

[0041] The two first brackets 2 are connected via a first base 4;

[0042] The first bracket 2 and the second bracket 3 are connected via a second base 5;

[0043] An extension frame 6 is provided on the top of the first bracket 2 and the second bracket 3;

[0044] The two groups of foldable brackets 1 are connected via a connecting seat 7 .

[0045] Two threaded cylinders 201 with openings facing upwards are symmetrically fixedly installed in the middle of the first bracket 2 and the second bracket 3. Plug holes 202 are provided on the tops of the two side arms of the first bracket 2 and the second bracket 3. Four connecting blocks 21 are evenly fixedly connected to the side of the first bracket 2 close to the first base 4. The first bracket 2 is fixedly installed with a column 22 through the four connecting blocks 21, and three groups of tooth grooves 221 are evenly provided on the column 22.

[0046] One end of the first bracket 2 close to the second base 5 and the end of the second bracket 3 close to the second base 5 have the same features. The end of the first bracket 2 close to the second base 5 is symmetrically fixedly connected with two upper and lower protrusions 23. The ends of the two protrusions 23 away from each other are fixedly connected with a connecting column 231. A vertical rod 24 is fixedly installed between the two protrusions 23. Three groups of tooth grooves 241 are opened on the side wall of the vertical rod 24. Two inclined plates 242 are fixedly connected to the side wall of the vertical rod 24. The two inclined plates 242 and the three groups of tooth grooves 241 are staggered. The end of the inclined plate 242 away from the vertical rod 24 is fixedly connected with a sliding rod 243.

[0047] Three through holes 401 are evenly formed on the side wall of the first base 4 . Two mounting holes 41 are formed at both ends of the first base 4 . The column 22 is rotatably mounted between the two corresponding mounting holes 41 . A stopper 42 is provided in the middle of the bottom of the first base 4 .

[0048] One end of the first base 4 away from the stopper 42 is evenly fixedly connected with three cylindrical tubes 43, a sliding rod 44 is slidably installed inside the through hole 401, one end of the sliding rod 44 is fixedly connected with a circular plate 441, the circular plate 441 is slidably set inside the cylindrical tube 43, a spring 45 is fixedly installed between the circular plate 441 and the side wall of the first base 4, a transmission groove 46 is provided at one end of the sliding rod 44 away from the cylindrical tube 43, and the sliding rod 44 is transmission-connected to the tooth grooves 221 on both sides at the same time through the transmission groove 46.

[0049] The second base 5 has through holes 501 evenly arranged on its side walls, two mounting holes 51 are arranged at both ends of the second base 5, the connecting posts 231 are rotatably mounted inside the corresponding mounting holes 51, four openings 52 are symmetrically arranged on the inner wall of the second base 5, and four arc grooves 521 are symmetrically arranged inside the second base 5, and each arc groove 521 is connected to the outside through a corresponding opening 52.

[0050] Three cylindrical barrels 53 are evenly fixedly connected to the outer side wall of the second base 5, a sliding rod 54 is slidably installed inside the through hole 501, one end of the sliding rod 54 is fixedly connected to a circular plate 541, the circular plate 541 is slidably arranged inside the cylindrical barrel 53, a spring 55 is fixedly installed between the circular plate 541 and the side wall of the second base 5, a transmission groove 56 is opened at one end of the sliding rod 54 away from the cylindrical barrel 53, the sliding rod 54 is transmission-connected to the tooth grooves 241 on both sides through the transmission groove 56, and the sliding rod 243 is slidably arranged inside the arc groove 521;

[0051] Spring 1 45 and spring 2 55 have a tendency to rebound. When spring 1 45 rebounds, the angle between the two first brackets 2 decreases, and the two second brackets 3 approach each other. However, the bottom of the second bracket 3 is fixed inside the connecting tube 71, and the side plate 72 is in close contact with the elevator side wall and cannot continue to move. As a result, the two second brackets 3 are tightly clamped on the elevator side wall. Due to the elasticity of spring 2 55, the angle between the first bracket 2 and the second bracket 3 also tends to decrease, which in turn applies a clamping force to the connecting tube 71.

[0052] Both ends of the lower surface of the extension frame 6 are fixedly connected with insertion rods 61, and the two insertion rods 61 are respectively inserted into the insertion holes 202 at both ends of the first bracket 2 or the second bracket 3. Two threaded rods 62 are symmetrically installed in the middle of the lower surface of the extension frame 6. The threaded rods 62 are respectively arranged in a corresponding threaded tube 201. The threaded rods 62 are threadedly connected to the threaded tube 201, and the thread pitch of the threaded rods 62 is relatively long.

[0053] Two connecting tubes 71 are symmetrically and fixedly connected to the upper surface of the connecting seat 7 , and a side plate 72 is fixedly connected to the side walls of the two connecting tubes 71 which are away from each other.

[0054] When in use, the two folded foldable brackets 1 and the two connecting seats 7 are carried to the top of the elevator, and then the two first brackets 2 are opened. During this process, the rotation of the column 22 will push the sliding rod 44 to slide, the circular plate 441 moves synchronously, and the spring 45 is compressed. Then the first bracket 2 and the second bracket 3 are opened, and the bottom of the end of the second bracket 3 away from the second base 5 is sleeved inside the connecting tube 71, and the stopper 42 and the side plate 72 are close to the elevator side wall. After the foldable bracket 1 is opened, the spring 45 and the spring 2 55 have a tendency to rebound. The spring 1 45 rebounds, the angle between the two first brackets 2 is reduced, and the two second brackets 3 are close to each other, but the bottom of the second bracket 3 is fixed inside the connecting tube 71, and the side plate 72 is close to the elevator side wall and cannot continue to move. Then the two second brackets 3 will be tightly clamped on the elevator side wall, and due to the elasticity of the spring 2 55, the angle between the first bracket 2 and the second bracket 3 also has a tendency to decrease, and a clamping force will be applied to the connecting tube 71.

[0055] After the two sets of foldable brackets 1 are assembled with the two connecting seats 7, the protective device will be reinforced;

[0056] And according to the height of the construction workers, the protection performance of the protective device can be improved by lifting the extension frame 6;

[0057] After the construction is completed, the device will be removed. Due to the elasticity of the spring, the protective device will automatically fold and is easy to carry. By using a detachable protective device, it is avoided that the fixed protective device is more susceptible to corrosion, aging and performance degradation.

[0058] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An elevator car top protection device, comprising two groups of symmetrically arranged foldable brackets (1), each group of the foldable brackets (1) comprising two first brackets (2) and two second brackets (3), the two first brackets (2) being located between the two second brackets (3); characterized in that: Also includes: The two first brackets (2) are connected via a first base (4); The first bracket (2) and the second bracket (3) are connected via a second base (5); An extension frame (6) is provided on the top of each of the first frame (2) and the second frame (3); The two groups of foldable brackets (1) are connected via a connecting seat (7); Two threaded cylinders (201) with openings facing upwards are symmetrically fixedly mounted in the middle of the first bracket (2) and the second bracket (3); the tops of the arms on both sides of the first bracket (2) and the second bracket (3) are provided with insertion holes (202); four connecting blocks (21) are evenly fixedly connected to one side of the first bracket (2) close to the first base (4); a column (22) is fixedly mounted on the first bracket (2) via the four connecting blocks (21); and three groups of tooth grooves (221) are evenly provided on the column (22); The end of the first bracket (2) close to the second base (5) and the end of the second bracket (3) close to the second base (5) have the same features. The end of the first bracket (2) close to the second base (5) is symmetrically fixedly connected with two upper and lower protrusions (23). The ends of the two protrusions (23) away from each other are fixedly connected with a connecting column (231). A vertical rod (24) is fixedly installed between the two protrusions (23). Three groups of tooth grooves (241) are opened on the side wall of the vertical rod (24). Two inclined plates (242) are fixedly connected to the side wall of the vertical rod (24). The two inclined plates (242) and the three groups of tooth grooves (241) are staggered. The end of the inclined plate (242) away from the vertical rod (24) is fixedly connected with a sliding rod (243). The side wall of the first base (4) is evenly provided with three through holes (401), two mounting holes (41) are provided at both ends of the first base (4), the column (22) is rotatably mounted between two corresponding mounting holes (41), and a stopper (42) is provided in the middle of the bottom of the first base (4); The side wall of the second base (5) is evenly provided with through holes (501), two mounting holes (51) are provided at both ends of the second base (5), the connecting posts (231) are rotatably mounted inside the corresponding mounting holes (51), four openings (52) are symmetrically provided on the inner wall of the second base (5), four arc-shaped grooves (521) are symmetrically provided inside the second base (5), and each of the arc-shaped grooves (521) is connected to the outside through a corresponding opening (52); The end of the first base (4) away from the stopper (42) is evenly and fixedly connected with three cylindrical tubes (43); a sliding rod (44) is slidably installed inside the through hole (401); one end of the sliding rod (44) is fixedly connected with a circular plate (441); the circular plate (441) is slidably arranged inside the cylindrical tube (43); a spring (45) is fixedly installed between the circular plate (441) and the side wall of the first base (4); a transmission groove (46) is provided at the end of the sliding rod (44) away from the cylindrical tube (43); the sliding rod (44) is transmission-connected to the tooth grooves (221) on both sides through the transmission groove (46); Three cylindrical tubes (53) are evenly and fixedly connected to the outer side wall of the second base (5), a sliding rod (54) is slidably installed inside the second through hole (501), one end of the sliding rod (54) is fixedly connected to a circular plate (541), the circular plate (541) is slidably arranged inside the cylindrical tube (53), a spring (55) is fixedly installed between the circular plate (541) and the side wall of the second base (5), a transmission groove (56) is provided at one end of the sliding rod (54) away from the cylindrical tube (53), the sliding rod (54) is transmission-connected to the tooth grooves (241) on both sides through the transmission groove (56), and the sliding rod (243) is slidably arranged inside the arc groove (521); Two connecting tubes (71) are symmetrically and fixedly connected to the upper surface of the connecting seat (7), and side plates (72) are fixedly connected to the side walls of the two connecting tubes (71) that are away from each other. When working, the two folded foldable brackets (1) and the two connecting seats (7) are moved to the top of the elevator, and then the two first brackets (2) are opened. During this process, the column (22) rotates to push the sliding rod (44) to slide, the circular plate (441) moves synchronously, and the spring (45) is compressed. Then, the first bracket (2) and the second bracket (3) are opened, and the bottom of the end of the second bracket (3) away from the second base (5) is sleeved inside the connecting tube (71), and the stopper (42) and the side plate (72) are closely attached to the side wall of the elevator. After the foldable bracket (1) is opened, the spring (45) and the spring (55) have a tendency to rebound. The spring 1 (45) rebounds, the angle between the two first brackets (2) decreases, and the two second brackets (3) move closer to each other. However, the bottom of the second bracket (3) is fixed inside the connecting tube (71), and the side plate (72) is in close contact with the elevator side wall and cannot move further. As a result, the two second brackets (3) are tightly clamped on the elevator side wall. Due to the elasticity of the spring 2 (55), the angle between the first bracket (2) and the second bracket (3) also tends to decrease, and a clamping force is applied to the connecting tube (71).

2. An elevator car top protection device according to claim 1, characterized in that: Insertion rods (61) are fixedly connected to both ends of the lower surface of the extension frame (6), and the two insertion rods (61) are respectively inserted into the inside of the insertion holes (202) at both ends of the first bracket (2) or the second bracket (3). Two threaded rods (62) are symmetrically mounted on the middle part of the lower surface of the extension frame (6) for rotation, and the threaded rods (62) are respectively arranged inside a corresponding threaded cylinder (201), and the threaded rods (62) are threadedly connected to the threaded cylinder (201).

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