CN111232789B

CN111232789B - Elevator car stop device

Info

Publication number: CN111232789B
Application number: CN202010119395.2A
Authority: CN
Inventors: 周秋冬; 罗建华
Original assignee: Jiangxi Yikang Yungu Automation Equipment Co ltd
Current assignee: Jiangxi Yikang Yungu Automation Equipment Co ltd
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2021-03-16
Anticipated expiration: 2040-02-26
Also published as: CN111232789A

Abstract

The invention belongs to the technical field of elevator cars, in particular to an elevator car limiting device, which aims at solving the problem that the fixation of a rope coiling disc is only simple and is inconvenient to flexibly adjust by using an electric control positioning pin in maintenance. The two clamping devices fixed on the T-shaped sliding block can move relatively only by rotating the bidirectional screw when the rope coiling disc is required to be fixed in use, so that the middle limiting disc can be clamped quickly, the rope coiling disc can be well prevented from slipping under the action of high gravity by matching with the hexagonal rod with a locking effect, and the maintenance safety is improved.

Description

Elevator car stop device

Technical Field

The invention relates to the technical field of elevator cars, in particular to an elevator car limiting device.

Background

The elevator car is typically placed in a dedicated elevator frame and is raised and lowered by raising and lowering the elevator frame. In order to prevent vibration and noise generated from the elevator car frame from being transmitted to the elevator car, an elastic vibration-damping rubber pad is generally provided between the bottom of the elevator car and the elevator car frame. However, in the actual installation process of the elevator car, because the car bottom frame of the elevator car is often closer to the vertical beam of the elevator car frame than the car wall, if the car bottom frame of the elevator car is careless during installation, the car bottom frame of the elevator car deviates from the correct installation position, which can cause the situation that the car bottom frame of the elevator car is in direct rigid contact with the vertical beam of the elevator car frame, and the vibration of the elevator car frame can be directly transmitted to the body of the elevator car and generate serious noise, so that the riding comfort of passengers in the elevator car is reduced.

At present, when the car roof is used as a machine room-free elevator of an overhaul platform, a car limiting device is required to be arranged. The car limiting devices are provided with two sets and are respectively arranged at the guide rails on the two sides of the car, and the device must prevent the accidental movement of the car from causing injury to maintenance workers during maintenance. At present, the car limiting devices on the market are various in types, but have the following defects, but the device is used for fixing the rope coiling disc in maintenance only through simple fixing by using an electric control positioning pin, so that the car limiting device is inconvenient to flexibly adjust.

Disclosure of Invention

Based on the technical problem that the existing elevator is only fixed by a simple electric control positioning pin and is not convenient to flexibly adjust when a rope coiling disc is fixed in maintenance, the invention provides an elevator car limiting device.

The invention provides an elevator car limiting device, which comprises a base, wherein a rope hole is formed in the middle of the upper surface of the base, bearing bases are arranged at four corners of the upper surface of the base, which are close to the rope hole, two H-shaped steel beams which are parallel to each other are fixed between the upper surfaces of the four bearing bases, bearing clamping seats are fixed in the middle of the upper surfaces of the two H-shaped steel beams through bolts, a same hexagonal rod is rotatably connected between the two bearing clamping seats, a rope winding disc is fixed on the outer wall of the hexagonal rod, a limiting disc is sleeved at the end part of the hexagonal rod, conical teeth which are distributed equidistantly and in a staggered manner are arranged at two sides of the limiting disc, close to the circumferential edge, a C-shaped steel slide rail with an opening facing the limiting disc is fixed on the upper surface of the H-shaped steel beam close to one side of the limiting disc, and T-shaped sliding blocks are connected to two ends of the, and one side of each T-shaped sliding block, which is far away from the bottom of the groove, is fixedly provided with a clamping device, one side of each T-shaped sliding block, which is opposite to the bottom of the groove, is provided with a self-locking screw hole with opposite thread directions, and the two self-locking screw holes are internally screwed with the same two-way screw rod.

Preferably, annular grooves are reserved on the circumferential outer walls of the rope coiling disks, and steel wire ropes are wound on the circumferential outer walls of the annular grooves.

Preferably, an L-shaped clamping plate is fixed at the end part of the C-shaped steel slide rail, and a through hole matched with the outer diameter of the bidirectional screw is formed in the middle of the L-shaped clamping plate.

Preferably, a hand wheel is fixed at the end part of the bidirectional screw rod penetrating through the through hole, threaded holes distributed at equal intervals are fixed at the edge of the circumference of the hand wheel, and a poke rod is arranged at the edge of the hand wheel.

Preferably, the clamping device comprises a fixed block, an inner barrel connected inside the fixed block in a sliding manner, and a clamping block fixed at the end part of the inner barrel.

Preferably, the opposite sides of the two fixing blocks are provided with sinking grooves, guide grooves are reserved on the circumferential inner walls of the sinking grooves close to the top ends, guide blocks matched with the guide grooves are reserved on the outer walls of the inner barrel close to the top ends, and compression springs are arranged at the bottom of the inner barrel.

Preferably, the two edges of the opposite side of the two clamping blocks are rounded, and the opposite side of the two clamping blocks is provided with a tapered groove.

Preferably, the size of the conical tooth is matched with that of the conical groove, so that the conical groove can be used for meshing the conical tooth, and the anti-slip effect is improved.

Preferably, the two ends of the end part of the bidirectional screw rod, which are close to the through hole in the L-shaped clamping plate, are provided with annular check rings, and the diameters of the annular check rings are larger than the diameter of the through hole.

The beneficial effects of the invention are as follows:

1. this elevator car stop device fixes the clamping device on T type slider through setting up in spacing dish both sides, can only need to rotate two-way screw rod when using with the serving of a roll rope fixed can fix two clamping device relative movement on T type slider and then can be fast with the spacing dish centre gripping in the middle of to cooperation itself has six arris poles of locking effect can be fine prevent that the serving of a roll rope dish produces the phenomenon of skidding under big gravity, has improved the security of maintenance.

2. This elevator car stop device through setting up the screw hole on the hand wheel of two-way screw rod tip and hand wheel to can only need handheld poker rod can rotate the hand wheel when needing to rotate two-way screw rod when using, treat to adjust to the position of needs when, pass the screw hole with fastening bolt and with the hand wheel location can.

3. This elevator car stop device through the compression spring who sets up in interior bucket to can be when two grip blocks when putting in place the spacing dish centre gripping of centre can output the pretightning force constantly when using, with the spacing dish chucking of centre.

4. This elevator car stop device is close to the annular retaining ring of L type cardboard both sides through setting up at two-way screw rod outer wall, ensures that two-way screw rod can not appear controlling the drunkenness at the pivoted in-process.

The parts which are not involved in the device are the same as or can be realized by adopting the prior art, the device has the advantages of novel structure, good safety effect and high locking performance, and the looseness of the rope coiling disc can be adjusted by two-stage adjustment.

Drawings

Fig. 1 is a schematic cross-sectional structural view of an elevator car limiting device provided by the invention;

fig. 2 is a schematic overall structure diagram of an elevator car limiting device provided by the invention;

fig. 3 is a schematic perspective view of a positioning device of an elevator car limiting device according to the present invention;

fig. 4 is a schematic view of an assembly structure of a fixing barrel of an elevator car limiting device provided by the invention;

fig. 5 is an enlarged schematic structural view of a position a in fig. 3 of an elevator car limiting device according to the present invention.

In the figure: the device comprises a base 1, a bearing base 2, a bidirectional screw rod 3, a self-locking screw hole 4, a sliding block 5T-shaped, a sliding rail 6C-shaped, a clamping device 7, a steel wire rope 8, a rope coiling disc 9, a bearing clamping seat 10, a hexagonal rod 11, a limiting disc 12, a conical tooth 13, a steel beam 14H-shaped, a rope hole 15, a clamping plate 16L-shaped, a through hole 17, a sunken groove 18, an inner barrel 19, a conical groove 20, a clamping block 21, a hand wheel 22, a screw hole 23, a poking rod 24, a guide groove 25, a compression spring 26 and a guide block 27.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1

Referring to fig. 1-5, an elevator car limiting device comprises a base 1, a rope hole 15 is formed in the middle of the upper surface of the base 1, bearing bases 2 are arranged at four corners of the upper surface of the base 1 close to the rope hole 15, two parallel H-shaped steel beams 14 are fixed between the upper surfaces of the four bearing bases 2, bearing clamping bases 10 are fixed to the middle of the upper surfaces of the two H-shaped steel beams 14 through bolts, a same hexagonal rod 11 is rotatably connected between the two bearing clamping bases 10, a rope winding disc 9 is fixed to the outer wall of the hexagonal rod 11, a limiting disc 12 is sleeved on the end portion of the hexagonal rod 11, conical teeth 13 are arranged at two sides of the limiting disc 12 close to the circumferential edge in an equidistant and staggered manner, a C-shaped steel slide rail 6 with an opening facing the limiting disc 12 is fixed to the upper surface of the H-shaped steel beam 14 close to one side of the limiting disc 12, and T-shaped slide blocks 5 are connected to two ends of the C-shaped steel slide rail, one side of two T type sliders 5 far away from the tank bottom is fixed with a clamping device 7, one side of two T type sliders 5 opposite to each other is provided with a self-locking screw hole 4 with opposite thread directions, the two self-locking screw holes 4 are connected with the same two-way screw rod 3 in a threaded manner, so that when the rope coiling disc 9 is required to be fixed in use, the two clamping devices 7 fixed on the T type sliders 5 can move relatively only by rotating the two-way screw rod 3, and then the middle limiting disc 12 can be clamped rapidly, and the six-edge rod 11 which is matched with the locking effect can well prevent the rope coiling disc 9 from slipping under the condition of high gravity, and the maintenance safety is improved.

In the invention, annular grooves are reserved on the circumferential outer walls of the rope coiling discs 9, and the steel wire ropes 8 are wound on the circumferential outer walls of the annular grooves.

Wherein, the tip of C shaped steel slide rail 6 is fixed with L type cardboard 16, and the centre of L type cardboard 16 opens has the through-hole 17 with two-way screw 3 external diameter looks adaptation.

Wherein, the end fixing that two-way screw rod 3 passed through-hole 17 has hand wheel 22, and the circumference edge of hand wheel 22 is fixed with the screw hole that the equidistance distributes, and the edge of hand wheel 22 is provided with poker rod 24 to only need hand poker rod 24 and can rotate hand wheel 22 when needing to rotate two-way screw rod 3 when using, treat when adjusting to required position, pass the screw hole with fastening bolt and fix a position hand wheel 22 can.

The holding device 7 comprises a fixed block, an inner barrel 19 connected inside the fixed block in a sliding manner, and a holding block 21 fixed at the end of the inner barrel 19.

Wherein, the opposite sides of the two fixed blocks are both provided with a sinking groove 18, the circumferential inner wall of the sinking groove 18 is reserved with a guide groove 25 near the top end, the outer wall of the inner barrel 19 is reserved with a guide block 27 matched with the guide groove 25 near the top end, and the bottom of the inner barrel 19 is provided with a compression spring 26.

The upper edge and the lower edge of one side, opposite to the two clamping blocks 21, are both provided with rounded corners, and the side, opposite to the two clamping blocks 21, is provided with tapered grooves 20, so that when the clamping blocks 21 clamp the middle limiting disc 12 in place, pretightening force can be continuously output to clamp the middle limiting disc 12.

Wherein, the size of the conical tooth 13 is matched with the size of the conical groove 20, so that the conical groove 20 can engage the conical tooth 13, and the anti-skid effect is improved.

The working principle is as follows: when the rope coiling disc 9 is required to be fixed in use, two clamping devices 7 fixed on the T-shaped sliding block 5 can move relatively only by rotating the bidirectional screw 3, when the two clamping devices 7 move relatively, the two clamping blocks 21 can be driven to move towards the middle, and then the middle limiting disc 12 is clamped, the tapered groove 20 in the clamping block 21 can be used for meshing the tapered teeth 13 on the rotating disc 12, and the six-edge rod 11 with the locking effect can be matched to well prevent the rope coiling disc 9 from slipping under the action of high gravity, so that the maintenance safety is improved.

Example 2

Referring to fig. 1-3, in this embodiment, compared with embodiment 1, the elevator car limiting device further includes that annular retaining rings are respectively disposed at two ends of the end portion of the bidirectional screw 3, which are close to the through hole 17 in the L-shaped clamping plate 16, and the diameters of the annular retaining rings are larger than the diameter of the through hole 17, so that the bidirectional screw 3 is ensured not to move left and right in the rotating process.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides an elevator car stop device, includes base (1), its characterized in that, open at the upper surface middle part of base (1) has rope hole (15), and the upper surface of base (1) is close to four corners department of rope hole (15) and all is provided with bearing base (2), four be fixed with two H shaped steel roof beams (14) that are parallel to each other between the upper surface of bearing base (2), and the upper surface middle part of two H shaped steel roof beams (14) all has bearing cassette (10) through the bolt fastening, two it is connected with same six arris poles (11) to rotate between bearing cassette (10), the outer wall of six arris poles (11) is fixed with serving up a rope dish (9), spacing dish (12) has been cup jointed to the tip of six arris poles (11), and the both sides of spacing dish (12) are close to circumference edge and all are provided with equidistant crisscross distribution's toper tooth (13), are close to the fixed surface of the H shaped steel roof beam (14) of spacing dish (12) one side has the opening towards spacing dish (12) C shaped steel slide rail (6), and be close to the equal sliding connection in both ends T type slider (5), two in the spout of C shaped steel slide rail (6) one side that the tank bottom was kept away from in T type slider (5) all is fixed with clamping device (7), two auto-lock screw (4) that screw opposite direction were opened respectively to one side that T type slider (5) is relative, and the spiro union has same two-way screw (3) in two auto-lock screws (4).

2. The elevator car limiting device according to claim 1, wherein an annular groove is reserved on the circumferential outer wall of the rope winding disc (9), and the circumferential outer wall of the annular groove is wound with the steel wire rope (8).

3. The elevator car limiting device according to claim 1, wherein an L-shaped clamping plate (16) is fixed at the end of the C-shaped steel sliding rail (6), and a through hole (17) matched with the outer diameter of the bidirectional screw (3) is formed in the middle of the L-shaped clamping plate (16).

4. The elevator car limiting device according to claim 3, wherein a hand wheel (22) is fixed at the end of the bidirectional screw (3) penetrating through the through hole (17), threaded holes are fixed at the circumferential edge of the hand wheel (22) and distributed at equal intervals, and a poke rod (24) is arranged at the edge of the hand wheel (22).

5. An elevator car stopping device as defined in claim 1, characterized in that said holding device (7) comprises a holding block, an inner tub (19) slidably connected inside the holding block, and a holding block (21) fixed to the end of the inner tub (19).

6. The elevator car limiting device according to claim 5, wherein the opposite sides of the two fixing blocks are provided with a sinking groove (18), a guide groove (25) is reserved on the circumferential inner wall of the sinking groove (18) close to the top end, a guide block (27) matched with the guide groove (25) is reserved on the outer wall of the inner barrel (19) close to the top end, and the bottom of the inner barrel (19) is provided with a compression spring (26).

7. An elevator car stopping device as defined in claim 6, wherein the opposite sides of the two holding blocks (21) are rounded at both upper and lower edges, and the opposite sides of the two holding blocks (21) are provided with tapered grooves (20).

8. An elevator car restraint as claimed in claim 7 wherein the size of the conical teeth (13) is adapted to the size of the conical grooves (20) so that the conical grooves (20) engage the conical teeth (13) to improve the anti-slip effect.

9. An elevator car stop device according to claim 3, characterized in that the ends of the bidirectional screw (3) near the through holes (17) in the L-shaped catch plates (16) are provided with annular retaining rings, and the diameter of the annular retaining rings is larger than that of the through holes (17).