CN213976689U

CN213976689U - Hoist promotes stopper

Info

Publication number: CN213976689U
Application number: CN202023262821.2U
Authority: CN
Inventors: 王耀祖
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-08-17
Anticipated expiration: 2030-12-30

Abstract

The utility model provides a hoist lifting limiter, which comprises a shell, the inside of the shell is provided with a limit switch along the vertical direction in a sliding manner, the top of the limit switch is rotatably provided with an adjusting bolt in threaded connection with the shell, the limit switch is provided with a vertically downward contact, a connecting rod is coaxially and fixedly connected to the contact, the connecting rod extends downwards to penetrate through the shell, the lower end of the connecting rod is vertically provided with a sliding rod, the bottom of the shell is provided with two swinging rods respectively corresponding to the two ends of the sliding rod, the swinging rods are provided with chutes matched with the sliding rod, one end of each swinging rod is hinged with the shell, and the other end of each swinging rod is provided with a touch panel; the utility model discloses be convenient for adjust the limit switch contact, the debugging time is saved in convenient debugging.

Description

Hoist promotes stopper

Technical Field

The utility model belongs to the technical field of the hoist, concretely relates to hoist promotes stopper.

Background

In order to prevent the hoisting equipment from being limited in the process of bumping, most of the limit switches are used for completing the limit. The existing anti-ejection limiting devices in the current market are of a pull rod limiting type, a heavy hammer limiting type and a photoelectric limiting type,

in the prior art, as chinese utility model patent with application number cn201720141366.x, a crane roof-protecting overweight-preventing limiter for influencing hoisting height is disclosed, including: the device comprises a shell, a panel, a microcomputer control mainboard, a steel wire rope fixer assembly with a sensor, a limit switch, an anti-top limit lever assembly and a cable waterproof connector; the steel wire rope fixer assembly with the sensor is fixedly arranged on one side of the shell; a nixie tube for displaying weight and a control key are arranged on the panel; the lower end of the shell is also provided with a limit switch contact; and a fixed plate with a mounting hole is further arranged on one side of the limit switch contact at the lower end of the casing and is used for movably mounting the anti-top-collision limit lever assembly.

However, in the prior art, after the device is installed, when the height of the limit switch contact needs to be adjusted in the debugging process, the installation height of the device needs to be adjusted after the device needs to be detached, and the height of the limit switch contact cannot be directly adjusted, so that inconvenience is brought to debugging.

Therefore, a crane lifting limiter which is convenient to adjust a limit switch contact, is convenient to debug and saves debugging time is needed to be designed to solve the technical problem faced at present.

Disclosure of Invention

Not enough to exist among the prior art, the utility model provides a hoist promotes stopper convenient to adjust the limit switch contact, and debugging time is saved in convenient debugging.

The technical scheme of the utility model is that: hoist promotes stopper, which comprises a housin, the inside of casing is provided with limit switch along vertical direction slip, limit switch's top rotate be provided with casing threaded connection's adjusting bolt, limit switch has vertical decurrent contact, coaxial fixedly connected with connecting rod on the contact, connecting rod downwardly extending runs through the casing, the lower extreme of connecting rod is provided with the slide bar perpendicularly, the bottom of casing be provided with two swinging arms that the both ends of slide bar are corresponding respectively, seted up on the swinging arm with slide bar matched with spout, the one end of swinging arm with the casing is articulated mutually, the other end of swinging arm is provided with the touch panel.

The inside of casing is provided with and is used for the installation limit switch's mounting panel, the limit switch both sides all be provided with the curb plate on the mounting panel, the top of mounting panel is provided with the roof, adjusting bolt's bottom with the roof rotates to be connected, limit switch's both sides vertically between the casing upper and lower face be provided with the guide arm, be provided with on the curb plate with guide arm assorted slide pipe, slide pipe sliding sleeve is in the outside of guide arm.

The top end of the shell is fixedly provided with an internal thread seat in threaded connection with the adjusting bolt, and a locking nut is assembled on the adjusting bolt above the internal thread seat.

The top end of the connecting rod is fixedly provided with a sleeve matched with the contact, and the sleeve is fixedly sleeved outside the contact.

The limiting plate is arranged at the end part of the sliding rod and is in contact connection with the outer side of the oscillating rod.

The bottom of casing is fixed and is provided with articulated seat, the one end of swinging arms with articulated seat is articulated mutually.

A support rod is arranged between the two swing rods.

The utility model has the advantages that:

(1) when the crane is used, the contact plate is pushed upwards when the crane is lifted to a high point, the swinging rod is driven to move upwards when the contact plate moves, the connecting rod is pushed to trigger a contact of the limit switch when the swinging rod moves, and the limit switch trigger signal is collected to serve as a stop signal for lifting of the crane, so that the lifting limit function of the crane can be achieved;

(2) after the installation of hoist promotion stopper, when needing to adjust the trigger height of touch panel, need not to pull it down, directly revolve wrong adjusting bolt, cooperate through the helicitic texture between adjusting bolt and the casing, adjusting bolt reciprocates and can drive limit switch and reciprocate, when limit switch reciprocates, pull through the connecting rod and push away the swinging arms luffing motion regulation, can adjust from top to bottom the height of touch panel, adjust the height that the position that finishes through the helicitic texture auto-lock between adjusting bolt 1 and the casing can make the touch panel keeps after the regulation, convenient adjustment, can shorten the debug time greatly.

Drawings

Fig. 1 is one of the structural schematic diagrams of the middle crane lifting limiter of the present invention.

Fig. 2 is a second schematic structural view of the middle crane lifting limiter of the present invention.

Fig. 3 is a cross-sectional view taken at B-B in fig. 2.

Fig. 4 is a partially enlarged view of a portion a in fig. 1.

Detailed Description

The following describes the embodiments of the present invention with reference to the drawings and examples.

As shown in fig. 1 to 4, the lifting limiter of the crane comprises a housing 1, a limit switch 13 is arranged inside the housing 1 in a sliding manner along a vertical direction, an adjusting bolt 10 in threaded connection with the housing 1 is rotatably arranged at the top of the limit switch 13, the limit switch 13 is provided with a vertically downward contact 1301, a connecting rod 8 is coaxially and fixedly connected to the contact 1301, the connecting rod 8 extends downwards to penetrate through the housing 1, the connecting rod 8 is in sliding connection with the housing 1, a sliding rod 6 is vertically arranged at the lower end of the connecting rod 8, two swinging rods 3 corresponding to two ends of the sliding rod 6 are arranged at the bottom of the housing 1, a sliding groove 5 matched with the sliding rod 6 is formed in each swinging rod 3, one end of each swinging rod 3 is hinged to the housing 1, and a contact plate 2 is arranged at the other end of each swinging rod 3; when the crane is used, the contact plate 2 is pushed upwards when the crane is lifted to a high point, the swinging rod 3 is driven to move upwards when the contact plate 2 moves, the connecting rod 8 is pushed to trigger the contact 1301 of the limit switch 13 when the swinging rod 3 moves, and the trigger signal of the limit switch 13 is collected to serve as a stop signal for lifting of the crane, so that the lifting limit effect of the crane can be achieved; hoist promotes the stopper and accomplishes the back at the installation, when needing to adjust the trigger height of touch panel 2, need not to pull it down, directly revolve wrong adjusting bolt 10, cooperate through the helicitic texture between adjusting bolt 10 and the casing 1, adjusting bolt 10 reciprocates and can drive limit switch 13 and reciprocate, when limit switch 13 reciprocates, pull through connecting rod 8 and push away 3 luffing motion regulation of swinging arms, can adjust from top to bottom the height of touch panel 2, adjust the height that can make touch panel 2 after finishing through the helicitic texture auto-lock between adjusting bolt 10 and the casing 1 after the regulation, convenient adjustment, can shorten the debug time greatly.

In the above embodiment, specifically, the mounting plate 15 for mounting the limit switch 13 is arranged inside the housing 1, the limit switch 13 is fixed on one side of the mounting plate 15 through bolt assembly, the mounting plates 15 on both sides of the limit switch 13 are both provided with the side plates 17, the side plates 17 and the mounting plate 15 are integrated, the top of the mounting plate 15 is provided with the top plate 16, the top plate 16 and the mounting plate 15 are integrated, the bottom end of the adjusting bolt 10 is rotatably connected with the top plate 16, the guide rods 19 are vertically arranged between the upper surface and the lower surface of the housing 1 on both sides of the limit switch 13, the side plates 17 are fixedly provided with the slide pipes 18 matched with the guide rods 19, the slide pipes 18 are slidably sleeved outside the guide rods 19, and the slide of the limit switch 13 inside the housing 1 along the vertical direction is realized through the cooperation of the slide pipes 18 and the guide rods 19.

As an implementation mode of the threaded connection between the adjusting bolt 10 and the housing 1, an internal threaded seat 12 in threaded connection with the adjusting bolt 10 is fixedly arranged at the top end of the housing 1, the adjusting bolt 10 is assembled inside the internal threaded seat 12, a locking nut 11 is assembled on the adjusting bolt 10 above the internal threaded seat 12, after the position of the touch panel 2 is adjusted, the locking nut 11 is screwed to be tightly propped against the internal threaded seat 12, the axial force between the locking nut 11 and the threads of the adjusting bolt 10 is increased, the adjusting bolt 10 is locked and fixed, and the position of the touch panel 2 is kept inconvenient.

As an embodiment of connection between the link 8 and the contact 1301, a sleeve 14 matched with the contact 1301 is fixedly arranged at the top end of the link 8, the sleeve 14 and the link 8 are of an integral structure, the sleeve 14 is fixedly sleeved outside the contact 1301, a jackscrew is arranged on the side surface of the sleeve 14 along the radial direction of the sleeve, and the sleeve 14 and the contact 1301 are fixedly connected through the jackscrew.

The limiting plate 7 is arranged at the end part of the sliding rod 6, the sliding groove 5 is a long-strip-shaped pore channel formed in the oscillating rod 3, the limiting plate 7 is a round plate body, one side, close to the sliding rod 6, of the limiting plate 7 is in contact connection with the outer side of the oscillating rod 3 on the periphery of the sliding groove 5, and the sliding rod 6 is prevented from slipping from the inside of the sliding groove 5 through the limiting effect of the limiting plate 7.

The bottom of casing 1 is fixed and is provided with articulated seat 9, and the one end of swinging arms 3 is articulated mutually with articulated seat 9.

In order to increase the stability of the connection between the two oscillating levers 3, a support bar 4 is arranged between the two oscillating levers 3.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a hoist promotes stopper, a serial communication port, which comprises a housin, the inside of casing is provided with limit switch along vertical direction slip, limit switch's top rotate be provided with casing threaded connection's adjusting bolt, limit switch has vertical decurrent contact, coaxial fixedly connected with connecting rod on the contact, connecting rod downwardly extending runs through the casing, the lower extreme of connecting rod is provided with the slide bar perpendicularly, the bottom of casing be provided with two swinging arms that the both ends of slide bar are corresponding respectively, seted up on the swinging arm with slide bar matched with spout, the one end of swinging arm with the casing is articulated mutually, the other end of swinging arm is provided with the touch panel.

2. The crane lift stop of claim 1, wherein: the inside of casing is provided with and is used for the installation limit switch's mounting panel, the limit switch both sides all be provided with the curb plate on the mounting panel, the top of mounting panel is provided with the roof, adjusting bolt's bottom with the roof rotates to be connected, limit switch's both sides vertically between the casing upper and lower face be provided with the guide arm, be provided with on the curb plate with guide arm assorted slide pipe, slide pipe sliding sleeve is in the outside of guide arm.

3. The crane lift stop of claim 1, wherein: the top end of the shell is fixedly provided with an internal thread seat in threaded connection with the adjusting bolt, and a locking nut is assembled on the adjusting bolt above the internal thread seat.

4. The crane lift stop of claim 1, wherein: the top end of the connecting rod is fixedly provided with a sleeve matched with the contact, and the sleeve is fixedly sleeved outside the contact.

5. The crane lift stop of claim 1, wherein: the limiting plate is arranged at the end part of the sliding rod and is in contact connection with the outer side of the oscillating rod.

6. The crane lift stop of claim 1, wherein: the bottom of casing is fixed and is provided with articulated seat, the one end of swinging arms with articulated seat is articulated mutually.

7. The crane lift stop of claim 1, wherein: a support rod is arranged between the two swing rods.