CN218525479U

CN218525479U - Limit device micro-gap switch base

Info

Publication number: CN218525479U
Application number: CN202222630178.7U
Authority: CN
Inventors: 王合永; 石赞佳; 王鹏辉; 张晓燕; 刘延松
Original assignee: Henan Sanzhi Equipment Technology Co ltd
Current assignee: Henan Sanzhi Equipment Technology Co ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2023-02-24
Anticipated expiration: 2032-10-08

Abstract

The utility model relates to a limit device micro-gap switch base, a micro-gap switch and a trigger device are arranged on a bottom plate, a rotary drum of the trigger device is vertically arranged in the middle of the bottom plate, a button is arranged on the end surface of the micro-gap switch close to the rotary drum, and a push block corresponding to the button is arranged on the side wall of the rotary drum; the micro switch is arranged on the bottom plate through an adjusting seat, side guide plates are symmetrically arranged on two sides of the adjusting seat, an adjusting shaft penetrates through the adjusting seat, long grooves corresponding to the adjusting shaft are horizontally formed in the side guide plates, and the adjusting shaft penetrates out of the long grooves on the two sides; a gear is sleeved on the adjusting shaft, and a guide rack corresponding to the gear is arranged on the side guide plate; one end of the adjusting shaft is provided with a multi-edge shaft head, a multi-edge sleeve is sleeved on the multi-edge shaft head, and two limiting long plates are arranged on the end surface of the side guide plate; this application can carry out the accuracy to micro-gap switch's mounted position through the cooperation of rotating the regulating spindle through gear, direction rack and adjust, carries on spacingly to it again, convenient operation, reliability height.

Description

Limit device micro-gap switch base

Technical Field

The utility model belongs to the technical field of the stopper technique and specifically relates to a stopper micro-gap switch base.

Background

The crane refers to a multi-action crane for vertically lifting and horizontally carrying heavy objects within a certain range. Also known as crown blocks, navigation cranes and cranes.

The bridge crane is a hoisting device which is transversely arranged above workshops, warehouses and material yards to hoist materials. Since its two ends are seated on a tall concrete column or a metal bracket, it is shaped like a bridge. The bridge frame of the bridge crane runs longitudinally along the rails laid on the elevated frames at two sides, so that the space below the bridge frame can be fully utilized to hoist materials without being hindered by ground equipment. The lifting machine has the widest application range and the largest quantity.

In order to ensure the safety factor of the crane during lifting of materials, a limiter is usually arranged on the crane and used for limiting the lifting working range of the crane and improving the safety, the limiter generally comprises a microswitch and a trigger device, the specification of the limiter needs to be replaced or adjusted sometimes according to different working scenes of the crane, the microswitch and the trigger device in the existing limiter are fixedly installed, the adjusting difficulty is higher, or the whole replacement cost of the limiter is too high, so that a limiter microswitch base which is convenient to adjust the position of the microswitch and is firm in fixation needs to be designed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stopper micro-gap switch base for solve the problem that exists among the above-mentioned background art.

In order to solve the problems, the utility model provides a limit device micro-gap switch base, this limit device micro-gap switch base includes bottom plate, micro-gap switch, trigger device all install on the bottom plate, trigger device's rotary drum is installed at the bottom plate middle part vertically, micro-gap switch is close to the terminal surface of rotary drum and is equipped with the button, be equipped with the ejector pad that corresponds with the button on the lateral wall of rotary drum; the lower end of the micro switch is provided with an adjusting seat, the micro switch is arranged on the bottom plate through the adjusting seat, two sides of the adjusting seat are symmetrically provided with side guide plates, the side guide plates are arranged on the bottom plate, an adjusting shaft penetrates through the adjusting seat, a long groove corresponding to the adjusting shaft is horizontally arranged on the side guide plates, and the adjusting shaft penetrates out of the long grooves on two sides; a gear is sleeved on the adjusting shaft, a guide rack corresponding to the gear is arranged on the side guide plate, and the gear rotates and moves along the direction of the guide rack to drive the adjusting seat to move along the direction close to the rotary drum; the adjusting shaft is characterized in that a multi-edge shaft head is arranged at one end of the adjusting shaft, the multi-edge sleeve is sleeved on the multi-edge shaft head and can move along the axis direction of the adjusting shaft, two limiting long plates are symmetrically arranged on the end face, close to the multi-edge shaft head, of the side guide plate relative to the long groove in the vertical direction, and the multi-edge sleeve is moved to a position between the two limiting long plates to limit the rotation of the adjusting shaft.

The utility model provides a stopper micro-gap switch base still has following technical characteristic:

furthermore, the gear symmetry is equipped with two just the gear is established at the both ends of regulating spindle.

Furthermore, a partition plate is arranged between the adjusting seat and the microswitch, and a guide groove corresponding to the edge of the partition plate is arranged on the side guide plate.

Furthermore, a plurality of micro switches are arranged in the vertical direction, and the partition plate is arranged between every two adjacent micro switches.

Furthermore, the lower end of the rotary drum is connected with an input shaft, and the upper end of the rotary drum is provided with an external shaft.

Furthermore, a planetary speed reducing device is arranged between the rotary drum and the input shaft.

Furthermore, a handle is arranged at the end part of the multi-edge shaft head.

Furthermore, a spring is arranged between the multi-edge sleeve and the handle.

Further, the bottom plate is installed on the mount pad, the mount pad upper shield is equipped with the safety cover.

Furthermore, the mounting seat is provided with a matching bulge corresponding to the interface of the protection cover.

The utility model discloses following beneficial effect has: the adjusting device is reasonable in structure and ingenious in matching, the gear on the adjusting shaft is enabled to rotate and move along the guide rack by rotating the adjusting shaft, so that the micro switch is driven to move, the installation position of the micro switch is adjusted, the gear and the rack are adopted for transmission, the stroke is stable, and the adjustment is accurate; after the adjustment is completed, the multi-edge sleeve is pushed between the two limiting long plates to limit the rotation of the adjusting shaft, so that the position of the microswitch is limited, and the microswitch is simple to operate and reliable to fix.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of the present invention;

fig. 2 is a matching diagram of the micro switch and the bottom plate according to the embodiment of the present invention;

fig. 3 is an enlarged view at a in fig. 2.

11. A mounting base; 12. a mating protrusion; 13. a protective cover; 21. a drum; 22. an input shaft; 23. an external shaft; 24. pushing a block; 31. a microswitch; 32. a partition plate; 33. a button; 34. an L-shaped elastic sheet; 35. a roller; 36. an adjusting seat; 41. a base plate; 42. a side guide plate; 43. a long limiting plate; 44. a guide rack; 45. a guide groove; 51. an adjustment shaft; 52. a gear; 53. a multi-edge shaft head; 54. a multi-edge sleeve; 55. a handle; 56. a spring.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the embodiment of the stopper micro switch base shown in fig. 1 to 3, the stopper micro switch base includes a bottom plate 41, a micro switch 31 and a trigger device, the micro switch 31 and the trigger device are both mounted on the bottom plate 41, and is characterized in that the rotary drum 21 of the trigger device is vertically mounted in the middle of the bottom plate 41, the micro switch 31 is provided with a button 33 near the end surface of the rotary drum 21, the side wall of the rotary drum 21 is provided with a push block 24 corresponding to the button 33, and the rotary drum 21 rotates to enable the push block 24 to toggle the button 33; the lower end of the micro switch 31 is provided with an adjusting seat 36, the micro switch 31 is arranged on the bottom plate 41 through the adjusting seat 36, two sides of the adjusting seat 36 are symmetrically provided with side guide plates 42, the side guide plates 42 are arranged on the bottom plate 41, the side guide plates 42 play a good limiting and guiding role, an adjusting shaft 51 penetrates through the adjusting seat 36, a long groove corresponding to the adjusting shaft 51 is horizontally arranged on the side guide plates 42, and the adjusting shaft 51 penetrates out of the long grooves on two sides; the adjusting shaft 51 is sleeved with a gear 52, the side guide plate 42 is provided with a guide rack 44 corresponding to the gear 52, and the gear 52 rotates and moves along the direction of the guide rack 44 to drive the adjusting seat 36 to move along the direction close to the rotary drum 21; a multi-edge shaft head 53 is arranged at one end of the adjusting shaft 51, the multi-edge shaft head 53 is sleeved with the multi-edge sleeve 54, the multi-edge sleeve 54 can move along the axial direction of the adjusting shaft 51, two limiting long plates 43 are symmetrically arranged on the end face, close to the multi-edge shaft head 53, of the side guide plate 42 relative to the long groove in the vertical direction, the multi-edge sleeve 54 is moved to a position between the two limiting long plates 43, the rotation of the adjusting shaft 51 can be limited, the distance between the two limiting long plates 43 is equal to the distance between the two opposite sides of the multi-edge sleeve 54, and the multi-edge sleeve 54 is convenient to limit after being sent into the position between the two limiting long plates 43.

When the crane works normally, a motor shaft of the crane drives the rotary drum 21 to rotate, and the push block 24 can trigger the button 33 when the rotary drum 21 rotates for a certain angle; in the period, the multi-edge sleeve 54 is positioned between the two limit long plates 43, the adjusting shaft 51 is limited and can not rotate, and the micro switch 31 can not move, so that the integral stability of the crane limiter is ensured; when the trigger device needs to be replaced or the position of the microswitch 31 needs to be adjusted, the multi-edge sleeve 54 can be pulled out from between the two long limiting plates 43, so that the adjusting shaft 51 can be unlocked and can rotate, the gear 52 on the adjusting shaft 51 can rotate and move along the guide rack 44 by rotating the adjusting shaft 51, the microswitch 31 is driven to move, the installation position of the microswitch is adjusted, and the multi-edge sleeve 54 is protruded into between the two long limiting plates 43 after the adjustment is finished; this application adopts rack and pinion transmission to adjust and moves the position of gate 31 a little, and the stroke is stable, adjusts the accuracy.

In an embodiment of the present application, preferably, the microswitch 31 is further provided with an L-shaped elastic sheet 34, a roller 35 is installed at an end of a long side of the L-shaped elastic sheet 34 close to the drum 21, the roller 35 is in tangential fit with a side wall of the drum 21, and the rotation of the drum 21 can enable the push block 24 to poke the roller 35 and the L-shaped elastic sheet 34, so as to trigger the button 33 by using the L-shaped elastic sheet 34, reduce wear of components such as the button 33, and prolong a service life of the present application.

In an embodiment of the present application, preferably, two gears 52 are symmetrically disposed and the gears 52 are disposed at two ends of the adjusting shaft 51, so that the two sides of the micro switch 31 move uniformly, the adjustment is smooth, and uneven stress is avoided.

In an embodiment of the present application, preferably, a partition plate 32 is disposed between the adjusting seat 36 and the micro switch 31, so as to improve the isolation and protection capability between the adjusting seat 36 and the micro switch 31, and a guide groove 45 corresponding to an edge of the partition plate 32 is disposed on the side guide plate 42, so as to guide the movement adjustment of the micro switch 31.

In an embodiment of the present application, preferably, the micro switches 31 are provided with a plurality of micro switches along the vertical direction, and the partition plate 32 is provided between each adjacent micro switch 31, so that the stopper where the present application is located can control a plurality of micro switches 31 simultaneously, and the work efficiency is improved.

In one embodiment of the present application, preferably, the lower end of the rotating drum 21 is connected to an input shaft 22 for facilitating the butt-joint installation with the wheel shaft of the crane, and the upper end of the rotating drum 21 is provided with an external shaft 23 for facilitating the later connection of other instrument devices.

In one embodiment of the present application, a planetary reduction gear is preferably further disposed between the drum 21 and the input shaft 22, so as to increase the overall working stroke of the stopper.

In one embodiment of the present application, the end of the multi-ribbed shaft head 53 is preferably provided with a handle 55 to facilitate rotation of the adjustment shaft 51 and to prevent the multi-ribbed sleeve 54 from being lost when the present application is not in use.

In one embodiment of the present application, a spring 56 is preferably disposed between the polygonal sleeve 54 and the handle 55, and the spring 56 presses the polygonal sleeve 54 between the two long limiting plates 43, so as to improve the working reliability of the present application.

In one embodiment of the present application, preferably, the bottom plate 41 is installed on the installation seat 11, and the installation seat 11 is covered with the protection cover 13, so as to prevent the external factors from damaging the components.

In an embodiment of the present application, preferably, the mounting seat 11 is provided with a matching protrusion 12 corresponding to an interface of the protection cover 13, so as to facilitate installation of the protection cover 13.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A limit stop microswitch base comprises a bottom plate, a microswitch and a trigger device, wherein the microswitch and the trigger device are both arranged on the bottom plate, and the limit stop microswitch base is characterized in that a rotary drum of the trigger device is vertically arranged in the middle of the bottom plate, a button is arranged on the end surface of the microswitch, which is close to the rotary drum, and a push block corresponding to the button is arranged on the side wall of the rotary drum; the lower end of the micro switch is provided with an adjusting seat, the micro switch is arranged on the bottom plate through the adjusting seat, two sides of the adjusting seat are symmetrically provided with side guide plates, the side guide plates are arranged on the bottom plate, an adjusting shaft penetrates through the adjusting seat, a long groove corresponding to the adjusting shaft is horizontally arranged on the side guide plates, and the adjusting shaft penetrates out of the long grooves on two sides; the adjusting shaft is sleeved with a gear, the side guide plate is provided with a guide rack corresponding to the gear, and the gear rotates and moves along the direction of the guide rack to drive the adjusting seat to move along the direction close to the rotary drum; the adjusting mechanism is characterized in that a multi-edge shaft head is arranged at one end of the adjusting shaft, a multi-edge sleeve is sleeved on the multi-edge shaft head and can move along the axis direction of the adjusting shaft, two limiting long plates are symmetrically arranged on the end face, close to the multi-edge shaft head, of the side guide plate and are opposite to the long groove in the up-down direction, and the multi-edge sleeve is moved to a position between the two limiting long plates to limit the rotation of the adjusting shaft.

2. The limit stop microswitch base of claim 1, wherein: the gear symmetry is equipped with two just the gear is established the both ends of regulating spindle.

3. The limit stop microswitch base of claim 1, wherein: a partition plate is arranged between the adjusting seat and the microswitch, and a guide groove corresponding to the edge of the partition plate is arranged on the side guide plate.

4. The limit stop microswitch base of claim 3, wherein: the micro switches are arranged in a plurality along the vertical direction, and the partition plates are arranged between every two adjacent micro switches.

5. The limit stop microswitch base of claim 1, wherein: the lower end of the rotary drum is connected with an input shaft, and the upper end of the rotary drum is provided with an external connecting shaft.

6. The limit stop microswitch base of claim 5, wherein: and a planetary speed reducer is arranged between the rotary drum and the input shaft.

7. The limit stop microswitch base of claim 1, wherein: the end part of the multi-edge shaft head is provided with a handle.

8. The limit stop microswitch base of claim 7, wherein: a spring is arranged between the multi-edge sleeve and the handle.

9. The limit stop microswitch base of claim 1, wherein: the bottom plate is installed on the mount pad, the mount pad upper shield is equipped with the safety cover.

10. The limit stop microswitch base of claim 9, wherein: and the mounting seat is provided with a matching bulge corresponding to the interface of the protective cover.