CN209835565U - Lift is with promoting overload detection device - Google Patents

Abstract

The utility model discloses a lifting overload detection device for an elevator, which comprises a base block, a telescopic groove, a telescopic column, a supporting spring, a cross shaft, telescopic equipment, a detection groove, a push rod, a detection switch, a screw rod and a slide hole, wherein the telescopic groove is symmetrically arranged on one side of the base block, the telescopic column is inserted in the telescopic groove in a sliding way, the supporting spring is sleeved outside the telescopic column, the telescopic column is elastically connected with the telescopic groove through the supporting spring, the telescopic column is fixedly welded with the cross shaft away from one end of the base block, and the telescopic equipment is symmetrically and rotatably arranged at two ends of the cross shaft, the lifting overload detection device for the elevator balances the stress of the telescopic equipment through the contraction of the supporting spring, matches the touch of the push rod to the detection switch to effectively detect the overload weight, the protection device works normally, the use safety is improved, and simultaneously the device changes the contraction amount of the manufactured, therefore, the load range is changed, the telescopic device is suitable for telescopic equipment of different models, and the practicability is improved.

Description

Lift is with promoting overload detection device

Technical Field

The utility model relates to an elevator safety auxiliary assembly technical field specifically is an elevator is with promoting overload detection device.

Background

A lifting operation platform is a multifunctional lifting mechanical device and can be divided into a fixed type, a movable type, a guide rail type, a crank arm type, a scissor fork type, a chain type, a loading and unloading platform and the like.

The scissor lift is the most common lift, as the telescopic performance is good, the application is wide, the main driving equipment is a hydraulic telescopic cylinder, but driving devices of different types have load limits, long-time overload or near-load work can reduce the service life of the driving devices, and even more, the devices are damaged and dangerous, so that the lifting overload detection device for the lift is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an elevator is with promoting overload detection device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a lifting overload detection device for an elevator comprises a base block, a telescopic groove, telescopic columns, a support spring, a cross shaft, telescopic equipment, a detection groove, a push rod, a detection switch, a screw rod and a sliding hole, wherein the telescopic groove is symmetrically formed in one side of the base block, the telescopic columns are inserted in the telescopic groove in a sliding mode, the support spring is sleeved on the outer sides of the telescopic columns, the telescopic columns are elastically connected with the telescopic groove through the support spring, the cross shaft is fixedly welded at one end, away from the base block, of each telescopic column, the two ends of the cross shaft are symmetrically and rotatably installed with the telescopic equipment, the base block is internally provided with the detection groove in the middle of the telescopic groove, the detection switch is arranged in the detection groove, the screw rod is meshed and penetrated at one side, away from the cross shaft, the end part of the screw rod is rotatably connected with the detection switch, the side, and the push rod penetrates into the detection groove through the sliding hole.

Preferably, a fixing plate is integrally fixed on the side edge of the base block, and fixing holes are uniformly formed in the surface of the fixing plate.

Preferably, the outer side of the transverse shaft is symmetrically and rotatably provided with a supporting wheel.

Preferably, the surface of the base block is positioned at the top of the detection groove and provided with a through groove, the top of the detection switch is fixed with a pointer, the pointer penetrates out of the detection groove through the through groove, and the side edge of the through groove is marked with a pressure mark.

Preferably, the supporting spring is made of a steel wire.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses the detection switch of device is connected with external power source and alarm device, flexible equipment drive lift load goes up and down, because the reaction force of flexible equipment makes flexible post atress compression supporting spring slide to flexible inslot, elasticity through supporting spring balances the thrust of flexible equipment, drive push rod sliding movement when flexible post is flexible, when the load of flexible equipment reaches the rated value, supporting spring's compressive capacity removes, the detection switch is touched to the push rod, thereby carry out controlling means braking or report to the police, this lift is with promoting overload detection device and passing through the balanced telescopic equipment's of shrink of supporting spring atress, the cooperation push rod is to the touch-control of detection switch, effectual detection overload weight, protection device normal work, improve the safety in utilization.

2. The utility model discloses according to the flexible equipment adjustable device's of different models load limit, twist and move the lead screw and promote detection switch and remove in detecting the inslot, through the comparison indication of sighting mark and pressure mark, make detection switch and push rod distance change, adjusted supporting spring's decrement, thereby realize the regulation to the load limit, this lift is with promoting overload detection device and through removing the detection switch position, change the shrinkage of making the spring, thereby change the load scope, be suitable for the flexible equipment of different models, improve the practicality.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a schematic view of the overall structure of the present invention.

In the figure: 1. a base block; 2. a fixing plate; 3. a fixing hole; 4. a telescopic groove; 5. a telescopic column; 6. a support spring; 7. a horizontal axis; 8. a support wheel; 9. a telescopic device; 10. a detection tank; 11. a push rod; 12. a detection switch; 13. a screw shaft; 14. a slide hole; 15. marking pins; 16. a through groove; 17. and (4) marking the pressure.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a lifting overload detection device for an elevator comprises a base block 1, a telescopic groove 4, a telescopic column 5, a supporting spring 6, a transverse shaft 7, telescopic equipment 9, a detection groove 10, a push rod 11, a detection switch 12, a screw rod 13 and a slide hole 14, wherein the telescopic groove 4 is symmetrically formed in one side of the base block 1, the telescopic column 5 is inserted in the telescopic groove 4 in a sliding mode, the supporting spring 6 is sleeved outside the telescopic column 5, the telescopic column 5 is elastically connected with the telescopic groove 4 through the supporting spring 6, the transverse shaft 7 is fixedly welded at one end, far away from the base block 1, of the telescopic column 5, the telescopic equipment 9 is symmetrically and rotatably installed at two ends of the transverse shaft 7, the telescopic equipment 9 is a power source for driving the elevator to lift, a hydraulic cylinder or a pneumatic telescopic cylinder is generally adopted, the rotary connection mode of the telescopic equipment 9 and the transverse shaft is the same as that of a traditional elevator power device and a bottom plate, the detection groove 10 is formed in the, and detect and be equipped with detection switch 12 in the groove 10, it has threaded spindle 13 to keep away from 7 one side meshing of cross axle and have worn to connect in groove 10, and 13 tip of threaded spindle rotate with detection switch 12 and be connected, it has seted up slide opening 14 to keep away from 13 one side of threaded spindle in groove 10, 7 fixed surface welding of cross axle has push rod 11, and push rod 11 penetrates in the detection groove 10 through slide opening 14.

A fixing plate 2 is integrally fixed on the side edge of the base block 1, fixing holes 3 are uniformly formed in the surface of the fixing plate 2, and through fixing of the fixing plate 2, screws conveniently and fast used penetrate through the fixing holes 3 to fixedly install the base block 1.

Supporting wheels 8 are symmetrically and rotatably arranged on the outer side of the cross shaft 7, and the supporting wheels 8 are arranged to increase the reaction force of the cross shaft 7 to the telescopic equipment 9 for supporting, so that the stress of the telescopic column 5 is horizontal, and the telescopic column is conveniently guided into the telescopic groove 4.

The surface of the base block 1 is positioned at the top of the detection groove 10 and is provided with a through groove 16, the top of the detection switch 12 is fixed with a pointer 15, the pointer 15 penetrates out of the detection groove 10 through the through groove 16, the side edge of the through groove 16 is marked with a pressure mark 17, and the limit size of load detection is conveniently adjusted through comparison indication of the pointer 15 and the pressure mark 17.

The supporting spring 6 is made of piano steel wires, has good strength and toughness, and is suitable for dynamic load work.

The working principle is as follows: the detection switch 12 of the device is connected with an external power supply and an alarm device, the telescopic equipment 9 drives the elevator to lift, because the reaction force of the telescopic equipment 9 enables the telescopic column 5 to be stressed to compress the supporting spring 6 to slide in the telescopic groove 4, the thrust of the telescopic equipment 9 is balanced through the elasticity of the supporting spring 6, the telescopic column 5 drives the push rod 11 to slide and move when being telescopic, when the load of the telescopic equipment 9 reaches a rated value, the compression amount of the supporting spring 6 moves, the push rod 11 touches the detection switch 12, thereby carrying out the braking or alarming of the control device, according to the load limit of the adjustable devices of the telescopic equipment 9 of different models, the screw rod 13 is screwed to push the detection switch 12 to move in the detection groove 10, the distance between the detection switch 12 and the push rod 11 is changed, the compression amount of the supporting spring 6 is adjusted, and the adjustment of the load limit.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a lift overload detection device for elevator, includes base block (1), flexible groove (4), flexible post (5), supporting spring (6), cross axle (7), flexible equipment (9), detects groove (10), push rod (11), detection switch (12), lead screw (13) and slide opening (14), its characterized in that: the detection device is characterized in that a telescopic groove (4) is symmetrically formed in one side of the base block (1), a telescopic column (5) is inserted in the telescopic groove (4) in a sliding mode, a supporting spring (6) is sleeved on the outer side of the telescopic column (5), the telescopic column (5) is elastically connected with the telescopic groove (4) through the supporting spring (6), one end, away from the base block (1), of the telescopic column (5) is fixedly welded with a cross shaft (7), telescopic equipment (9) is symmetrically and rotatably installed at two ends of the cross shaft (7), a detection groove (10) is formed in the base block (1) and is located in the middle of the telescopic groove (4), a detection switch (12) is arranged in the detection groove (10), one side, away from the cross shaft (7), of the detection groove (10) is meshed with a screw rod (13) in a penetrating mode, the end portion of the screw rod (13) is rotatably connected with the detection switch (12), one side, away, the push rod (11) is fixedly welded on the surface of the transverse shaft (7), and the push rod (11) penetrates into the detection groove (10) through the sliding hole (14).

2. The lift overload detection apparatus of claim 1, wherein: the side of the base block (1) is integrally fixed with a fixing plate (2), and fixing holes (3) are uniformly formed in the surface of the fixing plate (2).

3. The lift overload detection apparatus of claim 1, wherein: and supporting wheels (8) are symmetrically and rotatably arranged on the outer side of the transverse shaft (7).

4. The lift overload detection apparatus of claim 1, wherein: the surface of the base block (1) is located at the top of the detection groove (10) and is provided with a through groove (16), the top of the detection switch (12) is fixed with a pointer (15), the pointer (15) penetrates out of the detection groove (10) through the through groove (16), and the side edge of the through groove (16) is marked with a pressure mark (17).

5. The lift overload detection apparatus of claim 1, wherein: the supporting spring (6) is made of piano steel wires.