CN219771475U - Screw elevator anti-pinch safety device - Google Patents

Abstract

The utility model discloses an anti-pinch safety device of a screw elevator, which belongs to the field of elevator safety and comprises an elastic connection unit, wherein the elastic connection unit is arranged at a position between a bracket unit and a positioning unit, the elastic connection unit comprises a clamping seat and a fixing rod, symmetrically distributed guide parts are arranged on two side surfaces of the clamping seat, a sliding sleeve is arranged on the outer surface of the fixing rod, a supporting part which is hinged and connected with the clamping seat and the sliding sleeve is arranged between the rear side surface of the clamping seat and the sliding sleeve, a top plate is arranged at two ends of the fixing rod, a damping gasket is arranged on one side surface of the top plate, which is close to each other, and a spring is arranged between the sliding sleeve and the top plate. According to the elevator anti-pinch device, the elastic connecting unit is arranged at the support and the abutting position of the elevator anti-pinch device, after the elevator door is abutted by the anti-pinch device, the elastic buffering of the elevator door is realized by the elastic connecting unit, the damage degree of the anti-pinch device is effectively reduced, and the service life of the anti-pinch device is prolonged.

Description

Screw elevator anti-pinch safety device

Technical Field

The utility model relates to an elevator anti-clamping device, in particular to a screw elevator anti-clamping safety device.

Background

An elevator refers to a permanent transport device serving a number of specific floors within a building with its car running in at least two columns of rigid rails running perpendicular to the horizontal or inclined at an angle of less than 15 ° to the plumb line. The screw elevator is an elevator in which a plunger of a straight-top elevator is processed into rectangular threads, a large nut with a thrust bearing is arranged on the top of an oil cylinder, and then the nut is driven to rotate through a motor via a speed reducer (or a belt), so that a screw lifting car ascends or descends. The elevator needs to be regularly maintained when in operation and use, so that safety accidents are avoided, and in the elevator maintenance and overhaul process, in order to avoid clamping of the elevator door to hurt overhaul personnel, the elevator door is supported by the anti-clamping safety device.

In the prior art, according to chinese patent, the patent of application number CN202221883402.7 discloses a high-accuracy elevator is with preventing pressing from both sides structure with elevator door, and its theory of operation is: put into between the elevator door with overall structure, just can prevent pressing from both sides through preventing pressing from both sides the cover, when needing to select to open the different length of elevator door according to the maintenance of difference, through artifical rotatory screw pole, make the screw pole break away from the inside of first connecting block, second connecting block and nut, then upwards move the pulling handle, the pulling handle can drive the gag lever post and remove when removing, make the gag lever post break away from the spacing mouth of movable rod inside, length according to needs adjustment, through opposite method, make the gag lever post get into the spacing mouth of movable rod inside different positions, install, the effect of being convenient for prevent pressing from both sides has been reached.

However, when the existing anti-pinch safety device for the elevator is used, a certain defect exists, the elevator door is propped against through the propping parts at the two ends of the support, due to the induction structure on the elevator door, after the elevator door is propped against with things, the elevator door can be automatically opened, after the elevator door is propped against by the anti-pinch device, the elevator door can be continuously closed and opened, in the process, the two ends of the anti-pinch safety device propped against the elevator door are not provided with elastic buffer structures, the anti-pinch safety device is easily broken in the opening and closing processes of the elevator door without breaking, the support structure of the anti-pinch device is damaged, and the service life of the anti-pinch device is low, so that improvement is now made on the screw type anti-pinch safety device for the elevator.

Disclosure of Invention

The utility model aims to provide a screw elevator anti-pinch safety device, which utilizes an elastic connection unit between a support of an anti-pinch device and an abutting part to realize buffering, when the anti-pinch device is abutted between elevator doors for maintenance, the elevator doors are buffered through the elastic connection unit in the continuous closing and opening processes, so that the anti-pinch device can be effectively protected, the breakage and damage of the anti-pinch device are avoided, and the service life of the anti-pinch device is prolonged.

The technical aim of the utility model is realized by the following technical scheme: a screw elevator pinch prevention safety device comprising:

the support unit comprises a telescopic part with a rod-shaped structure, mounting plates are arranged at two ends of the telescopic part, and mounting seats with box-shaped structures are arranged on the mounting plates;

the positioning units are arranged at the positions of the two ends of the bracket unit and are propped against the elevator door through the bracket unit;

the elastic connection unit is arranged at the position between the support unit and the positioning unit and comprises a clamping seat and a fixing rod, guide parts symmetrically distributed are arranged on two side faces of the clamping seat, a sliding sleeve is arranged on the outer surface of the fixing rod, a supporting part hinged to the clamping seat and the sliding sleeve is arranged between the rear side face of the clamping seat and the sliding sleeve, damping washers are arranged on two ends of the fixing rod on one side face, close to each other, of the top plate, and springs are arranged between the sliding sleeve and the top plate.

Preferably, the telescopic part comprises a connecting sleeve, one end of the connecting sleeve is movably connected with a connecting rod, and one end, close to the connecting rod, of the connecting sleeve is sleeved with a locking clamp.

Through adopting above-mentioned technical scheme, the connecting rod carries out flexible removal on connecting sleeve, and is locked fixedly through locking clamp after the flexible regulation, utilizes flexible telescopic part to realize preventing pressing from both sides the regulation of device length.

Preferably, the positioning unit comprises a positioning plate with a U-shaped structure, a rubber pad is adhered to the inner side surface of the positioning plate, and an installation clamping plate is arranged on the rear side surface of the positioning plate.

Through adopting above-mentioned technical scheme, the locating plate card of U type structure is on the lift-cabin door to can make prevent pressing from both sides the device safe when preventing pressing from both sides the device and strut the lift-cabin door, avoid preventing pressing from both sides the device and drop on the lift-cabin door.

Preferably, the top plate is provided with a screw, and the fixing rod is fixedly installed at the position of the rear side of the inside of the installation seat through the top plate, and the fixing rod is vertically installed in the inside of the installation seat.

Through adopting above-mentioned technical scheme, the dead lever for buffering direction passes through the roof to be fixed in the inside of mount pad, and the dead lever of vertical installation can guarantee the removal of mount pad in the mount pad when the mount pad buffering removes.

Preferably, the supporting part comprises a supporting rod, a connecting shaft is arranged on the outer surface of the supporting rod, which is close to the two ends, and the two ends of the supporting rod are movably connected with connecting frames.

Through adopting above-mentioned technical scheme, the bracing piece is connected with the link through the connecting axle, utilizes the connecting axle to make the bracing piece rotate the activity on the link.

Preferably, the connecting frame is of a U-shaped structure, two ends of the supporting rod are movably connected with the connecting frame through connecting shafts, the connecting frames at two ends of the supporting rod are fixedly connected with the clamping seat and the sliding sleeve respectively, and the supporting rod is hinged with the clamping seat and the sliding sleeve through the connecting frames.

Through adopting above-mentioned technical scheme, the link at bracing piece both ends is connected with holder and sliding sleeve respectively, and the link at bracing piece and both ends carries out swing joint through the connecting axle to make the both ends of bracing piece be articulated type connection with holder and sliding sleeve through the link.

Preferably, the number of the supporting parts between the clamping seat and the fixing rod is two, and the two supporting parts are distributed in a splayed shape between the clamping seat and the fixing rod.

Through adopting above-mentioned technical scheme, eight style of calligraphy distribution's supporting part is similar with the scissors fork structure in the current structure, all realizes removing through opening and shutting of two support arms, and then cooperates buffer structure to cushion.

Preferably, the guide part comprises a guide bar and a sliding block, a sliding groove is formed in one side surface, close to the sliding block, of the guide bar, the sliding block slides on the guide bar through the sliding groove, the guide bar is fixed on the inner wall of the mounting seat, and the sliding block is fixed on the outer surface of the clamping seat.

Through adopting above-mentioned technical scheme, when the cassette moved on the mount pad, the slider of cassette moved in the spout of gib block to guarantee the stable removal of cassette on the mount pad when the cassette buffer moved.

Preferably, the guide part comprises a guide rod, one end of the guide rod is provided with a limiting plate, the outer surface of the guide rod is slidably connected with a sliding plate, the guide rod is fixed in the mounting seat, and the sliding plate is fixedly connected with the outer surface of the clamping seat.

Through adopting above-mentioned technical scheme, when the cassette moved on the mount pad, the slide of cassette moved on the guide bar to guarantee the stable removal of cassette on the mount pad when the cassette buffer moved.

In summary, when the anti-pinch safety device is used, the elevator is opened according to maintenance requirements, the anti-pinch units are placed between the elevator doors, the positioning units are propped against the elevator doors, the lengths of the positioning units are adjusted through the telescopic parts of the support units, the two positioning units can be propped against the elevator doors, the elevator doors are propped by the support units, the clamping seat is compressed towards the mounting seat by pressure in the opening and closing process of the elevator doors, the supporting part is extruded by the clamping seat, the supporting part is hinged with the clamping seat and the fixing rod, so that when the supporting part is extruded, the two supporting parts are opened at an angle, the sliding sleeve moves on the fixing rod, the compression springs, the springs and the damping washers are buffered, the closing pressure of the elevator doors is buffered, and the fracture and damage of the support structure of the anti-pinch device are avoided.

According to the anti-pinch device, the elastic connecting unit is arranged between the support unit and the positioning unit of the anti-pinch device, the elastic buffering function of the elastic connecting unit is utilized to buffer the anti-pinch device, and when the anti-pinch device is used, the elevator door can be prevented from continuously damaging the anti-pinch device caused by clamping the anti-pinch device, so that the service life of the anti-pinch device is longer.

According to the anti-pinch device, the elastic connection unit of the elastic buffer structure is used for buffering the impact force of the elevator door on the support when the anti-pinch device is used, and the impact of the elevator door closing on the anti-pinch device can be effectively relieved when the anti-pinch device is propped between the elevator doors, so that the anti-pinch device is protected, and the service life of the anti-pinch device is prolonged.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic structural view of the elastic connection unit of the present utility model;

FIG. 3 is a schematic view of the structure of the support of the present utility model;

FIG. 4 is a schematic view of the positioning unit of the present utility model;

FIG. 5 is a schematic structural view of the stand unit of the present utility model;

FIG. 6 is a schematic view of the structure of the telescoping section of the present utility model;

fig. 7 is a schematic structural view of a guide portion in embodiment 1 of the present utility model;

fig. 8 is a schematic structural view of a guide portion in embodiment 2 of the present utility model.

In the figure, 1, a bracket unit; 11. a telescopic part; 111. a connecting sleeve; 112. a connecting rod; 113. locking the clamp; 12. a mounting plate; 13. a mounting base; 2. a positioning unit; 21. a positioning plate; 22. a rubber pad; 23. installing a clamping plate; 3. an elastic connection unit; 31. a clamping seat; 32. a guide part; 321. a guide bar; 322. a chute; 323. a slide block; 324. a guide rod; 325. a limiting plate; 326. a slide plate; 33. a fixed rod; 34. a support part; 341. a support rod; 342. a connecting shaft; 343. a connecting frame; 35. a sliding sleeve; 36. a top plate; 37. a damping washer; 38. and (3) a spring.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.

Example 1:

as shown in fig. 1, a screw elevator anti-pinch safety device comprises a bracket unit 1, a positioning unit 2 and an elastic connection unit 3, wherein the positioning unit 2 is arranged at the two ends of the bracket unit 1, the positioning unit 2 is arranged on the bracket unit 1 through the elastic connection unit 3, when the anti-pinch safety device is used, the positioning unit 2 is clamped on an elevator door, the elevator door is propped against through the bracket unit 1, and the elastic connection unit 3 plays a role in buffering.

As shown in fig. 2, the elastic connection unit 3 includes a holder 31 and a fixing rod 33, the two side surfaces of the holder 31 are provided with symmetrically distributed guide portions 32, the outer surface of the fixing rod 33 is provided with a sliding sleeve 35, a support portion 34 hinged with the holder 31 and the sliding sleeve 35 is provided between the rear side surface of the holder 31 and the sliding sleeve 35, two ends of the fixing rod 33 are respectively provided with a top plate 36, a side surface of the top plate 36, which is close to each other, is provided with a damping washer 37, a spring 38 is provided between the sliding sleeve 35 and the top plate 36, the holder 31 is compressed towards the mounting seat 13 under pressure in the opening and closing process of the elevator door, the support portion 34 is hinged with the holder 31 and the fixing rod 33, so that when the support portion 34 is compressed, the two support portions 34 are opened at an angle, the sliding sleeve 35 moves on the fixing rod 33, the springs 38 are compressed, and the springs 38 and the damping washers 37 are buffered, so that the closing pressure of the elevator door is buffered.

As shown in fig. 3, the supporting portion 34 includes a supporting rod 341, a connecting shaft 342 is disposed on an outer surface of the supporting rod 341 near two ends, two ends of the supporting rod 341 are movably connected with a connecting frame 343, the connecting frames 343 at two ends of the supporting rod 341 are respectively fixedly connected with the holder 31 and the sliding sleeve 35, the supporting rod 341 is hinged with the holder 31 and the sliding sleeve 35 through the connecting frames 343, the connecting frames 343 at two ends of the supporting rod 341 are respectively connected with the holder 31 and the sliding sleeve 35, and the connecting frames 343 at two ends of the supporting rod 341 are movably connected with the connecting frames 343 through the connecting shafts 342, so that two ends of the supporting rod 341 are hinged with the holder 31 and the sliding sleeve 35 through the connecting frames 343.

As shown in fig. 4, the positioning unit 2 includes a positioning plate 21 with a U-shaped structure, and a rubber pad 22 is adhered to an inner side surface of the positioning plate 21, a mounting clamping plate 23 is disposed on a rear side surface of the positioning plate 21, and the positioning plate 21 with the U-shaped structure is clamped on an elevator door, so that the anti-clamping device can safely open the elevator door when the anti-clamping device is used, and the anti-clamping device is prevented from falling off the elevator door.

As shown in fig. 5, the stand unit 1 includes a telescopic portion 11 having a rod-like structure, mounting plates 12 are provided at both ends of the telescopic portion 11, and mounting seats 13 having a box-like structure are provided on the mounting plates 12, and the telescopic portion 11 of the stand unit 1 stretches, so that the mounting seats 13 at both ends of the telescopic portion 11 are close to the elevator door, and further the positioning unit 2 on the mounting seats 13 is abutted against the elevator door.

As shown in fig. 6, the telescopic portion 11 includes a connecting sleeve 111, one end of the connecting sleeve 111 is movably connected with a connecting rod 112, one end, close to the connecting rod 112, of the connecting sleeve 111 is sleeved with a locking clamp 113, the connecting rod 112 stretches out and draws back on the connecting sleeve 111, after stretching out and drawing back, the telescopic portion 11 is locked and fixed through the locking clamp 113, and the length of the anti-clamping device is adjusted by utilizing the telescopic portion 11.

As shown in fig. 7, the guide portion 32 includes a guide bar 321 and a slider 323, a side surface of the guide bar 321 near the slider 323 is provided with a sliding groove 322, the slider 323 slides on the guide bar 321 through the sliding groove 322, the guide bar 321 is fixed on the inner wall of the mounting seat 13, the slider 323 is fixed on the outer surface of the clamping seat 31, and when the clamping seat 31 moves on the mounting seat 13, the slider 323 of the clamping seat 31 moves in the sliding groove 322 of the guide bar 321, so that stable movement of the clamping seat 31 on the mounting seat 13 is ensured when the clamping seat 31 moves in a buffering manner

Working principle: when the anti-pinch safety device is used, an elevator is opened according to maintenance requirements, an anti-pinch unit is placed between elevator doors, a positioning unit 2 is abutted against the elevator doors, the lengths of the positioning units 2 are adjusted through a telescopic part 11 of a support unit 1, the two positioning units 2 can be abutted against the elevator doors, the elevator doors are supported by the support unit 1, a clamping seat 31 is compressed inwards towards a mounting seat 13 under pressure in the opening and closing process of the elevator doors, the clamping seat 31 presses a supporting part 34, the supporting part 34 is hinged with the clamping seat 31 and a fixing rod 33, so that when the supporting part 34 is pressed, the two supporting parts 34 are opened at an angle, a sliding sleeve 35 moves on the fixing rod 33, a spring 38 is pressed, the spring 38 and a damping washer 37 are buffered, and the closing pressure of the elevator doors is buffered, so that the breakage and damage of a support structure of the anti-pinch safety device are avoided.

Example 2:

as shown in fig. 8, a screw elevator anti-pinch safety device is different from embodiment 1 in that the guide portion 32 is different from embodiment 2, and the guide portion 32 of embodiment 2 is: the guide part 32 comprises a guide rod 324, one end of the guide rod 324 is provided with a limit plate 325, the outer surface of the guide rod 324 is slidably connected with a sliding plate 326, the guide rod 324 is fixed in the mounting seat 13, the sliding plate 326 is fixedly connected with the outer surface of the clamping seat 31, and when the clamping seat 31 moves on the mounting seat 13, the sliding plate 326 of the clamping seat 31 moves on the guide rod 325, so that stable movement of the clamping seat 31 on the mounting seat 13 is ensured when the clamping seat 31 moves in a buffering manner.

The principle of this embodiment is similar to embodiment 1, with the main differences: in embodiment 1, the clamping seat 31 is stably moved when buffered on the mounting seat 13 through the guide rail structure, while in embodiment 2, the clamping seat 31 is stably moved when buffered on the mounting seat 13 through the guiding action of the guiding rod 324, and other principles are the same as those in embodiment 1, and the description thereof will be omitted.

Claims (9)

1. A screw elevator pinch prevention safety device, comprising:

the support unit (1), the support unit (1) comprises a telescopic part (11) with a rod-shaped structure, mounting plates (12) are arranged at two ends of the telescopic part (11), and mounting seats (13) with box-shaped structures are arranged on the mounting plates (12);

the positioning units (2) are arranged at the positions of the two ends of the bracket unit (1), and the positioning units (2) are propped against the elevator door through the bracket unit (1);

the elastic connection unit (3), elastic connection unit (3) sets up the position between support unit (1) and positioning unit (2), elastic connection unit (3) are including holder (31) and dead lever (33), the both sides face of holder (31) is provided with guiding portion (32) of symmetric distribution, the surface of dead lever (33) is provided with gliding sliding sleeve (35), and is provided with between the trailing flank of holder (31) and sliding sleeve (35) with holder (31) and sliding sleeve (35) articulated supporting part (34) of being connected, both ends of dead lever (33) all are provided with roof (36) and are provided with damping washer (37) on the side that roof (36) are close to each other, be provided with spring (38) between sliding sleeve (35) and roof (36).

2. The screw elevator anti-pinch safety device of claim 1, wherein: the telescopic part (11) comprises a connecting sleeve (111), one end of the connecting sleeve (111) is movably connected with a connecting rod (112), and one end, close to the connecting rod (112), of the connecting sleeve (111) is sleeved with a locking clamp (113).

3. The screw elevator anti-pinch safety device of claim 1, wherein: the positioning unit (2) comprises a positioning plate (21) with a U-shaped structure, a rubber pad (22) is adhered to the inner side surface of the positioning plate (21), and an installation clamping plate (23) is arranged on the rear side surface of the positioning plate (21).

4. The screw elevator anti-pinch safety device of claim 1, wherein: the top plate (36) is provided with a screw, the fixing rod (33) is fixedly arranged at the position of the rear side of the inside of the mounting seat (13) through the top plate (36), and the fixing rod (33) is vertically arranged in the inside of the mounting seat (13).

5. The screw elevator anti-pinch safety device of claim 1, wherein: the supporting part (34) comprises a supporting rod (341), a connecting shaft (342) is arranged on the outer surface of the supporting rod (341) close to the two ends, and the two ends of the supporting rod (341) are movably connected with connecting frames (343).

6. The screw elevator anti-pinch safety device of claim 5, wherein: the connecting frame (343) is U type structure, the both ends of bracing piece (341) are through connecting axle (342) and link (343) swing joint, link (343) at bracing piece (341) both ends are respectively with cassette (31) and sliding sleeve (35) fixed connection, and bracing piece (341) are articulated connection with cassette (31) and sliding sleeve (35) through link (343).

7. The screw elevator anti-pinch safety device of claim 1, wherein: the number of the supporting parts (34) between the clamping seat (31) and the fixing rod (33) is two, and the two supporting parts (34) are distributed in a splayed shape between the clamping seat (31) and the fixing rod (33).

8. The screw elevator anti-pinch safety device of claim 1, wherein: the guide part (32) comprises a guide strip (321) and a sliding block (323), a sliding groove (322) is formed in one side surface, close to the sliding block (323), of the guide strip (321), the sliding block (323) slides on the guide strip (321) through the sliding groove (322), the guide strip (321) is fixed on the inner wall of the mounting seat (13), and the sliding block (323) is fixed on the outer surface of the clamping seat (31).

9. The screw elevator anti-pinch safety device of claim 1, wherein: the guide part (32) comprises a guide rod (324), a limit plate (325) is arranged at one end of the guide rod (324), a sliding plate (326) is slidably connected to the outer surface of the guide rod (324), the guide rod (324) is fixed inside the mounting seat (13), and the sliding plate (326) is fixedly connected with the outer surface of the clamping seat (31).