CN110896003A - Telescopic travel switch collision block mechanism - Google Patents
Telescopic travel switch collision block mechanism Download PDFInfo
- Publication number
- CN110896003A CN110896003A CN201811061222.9A CN201811061222A CN110896003A CN 110896003 A CN110896003 A CN 110896003A CN 201811061222 A CN201811061222 A CN 201811061222A CN 110896003 A CN110896003 A CN 110896003A
- Authority
- CN
- China
- Prior art keywords
- pull rod
- rod sleeve
- sleeve
- travel switch
- end cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/16—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
- H01H3/161—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift for actuation by moving a closing member, e.g. door, cover or lid
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Push-Button Switches (AREA)
Abstract
The invention discloses a telescopic travel switch block touching mechanism which comprises a travel switch and a fixed seat, wherein the travel switch is fixed on the fixed seat; a pull rod and a pull rod sleeve are arranged beside the fixed seat, the pull rod sleeve is arranged in the pull rod sleeve, and the pull rod sleeve is connected with the fixed seat through a guide sleeve; one end of the guide sleeve is connected with the fixed seat, the other end of the guide sleeve is sleeved on the outer wall of the pull rod sleeve, and the pull rod sleeve can axially slide in the guide sleeve; travel switches are arranged on two sides of the guide sleeve; one end of the pull rod sleeve is provided with a first collision block, and the other end of the pull rod sleeve is provided with an end cover; a second collision block is arranged at the upper part of the pull rod; one end of the pull rod penetrates out of the end cover to be connected with the driving device, and the other end of the pull rod can slide in the pull rod sleeve and can be abutted and limited by the end cover. The invention has simple and practical structure, and the two travel switches can be arranged in a smaller space through the telescopic structure, so that the rigid driving of the mechanical travel switch by the collision block can be still realized under the condition that the space is compressed.
Description
Technical Field
The invention belongs to the technical field of machinery manufacturing and maintenance equipment, and particularly relates to a telescopic travel switch collision block mechanism.
Background
The motion stroke control of the moving part of the existing mechanical equipment generally adopts the following modes: mechanical travel switches, proximity switches, displacement sensors, and the like. The proximity switch and the displacement sensor send out electric signals, and special PLC is needed for processing. The mechanical travel switch is a traditional travel control mode, and is pushed by a collision block arranged on a moving part to enable a micro switch arranged in the mechanical travel switch to generate on-off action so as to control the action of the moving part. The collision block of the mechanical travel switch is fixed on the moving part, and the installation distance of the travel switch is required to be the same as the travel of the moving part.
The existing market has a stay wire type displacement sensor similar to a steel tape, and the problem of installation distance of a travel switch is solved. The timely displacement electric signals output by the stay wire type displacement sensor need to be processed by the PLC. This is clearly not applicable to machines that only need to signal on and off at a given location.
Disclosure of Invention
The invention aims to solve the problems existing in the prior art, and aims to provide a mechanism for solving the problem that a travel switch collision block is difficult to arrange in a limited vertical space of a motion mechanism.
In order to achieve the purpose, the invention designs a telescopic travel switch collision block mechanism, which is characterized in that: the travel switch is fixed on the fixed seat; a pull rod and a pull rod sleeve are arranged beside the fixed seat, the pull rod sleeve is arranged in the pull rod sleeve, and the pull rod sleeve is connected with the fixed seat through a guide sleeve; one end of the guide sleeve is connected with the fixed seat, the other end of the guide sleeve is sleeved on the outer wall of the pull rod sleeve, and the pull rod sleeve can axially slide in the guide sleeve; travel switches are arranged on two sides of the guide sleeve; one end of the pull rod sleeve is provided with a first collision block, and the other end of the pull rod sleeve is provided with an end cover; a second collision block is arranged at the upper part of the pull rod; one end of the pull rod penetrates out of the end cover to be connected with the driving device, and the other end of the pull rod can slide in the pull rod sleeve and can be abutted and limited by the end cover.
Preferably, the inner diameter of the end cover is less than that of the pull rod sleeve, and the outer diameter of the pull rod sleeve is less than that of the end cover.
Preferably, one end of the pull rod penetrates out of the end cover to be connected with the driving device, and the bottom of the other end of the pull rod is provided with a positioning seat; the inner diameter of the end cover is smaller than the diameter of the positioning seat and is smaller than or equal to the inner diameter of the pull rod sleeve.
Preferably, a second-level rod sleeve is arranged in the pull rod sleeve; the bottom of the secondary rod sleeve is provided with a protruding end, and the outer diameter of the protruding end is larger than the inner diameter of the end cover; the top of the secondary rod sleeve is provided with a rod sleeve cover, the pull rod penetrates out of the rod sleeve cover, and the diameter of the positioning seat is larger than the inner diameter of the rod sleeve cover; the outer diameter of the rod sleeve cover is larger than the inner diameter of the end cover.
Preferably, the fixing seat is provided with a waist-shaped hole parallel to the axial direction of the pull rod, and each travel switch is matched with one waist-shaped hole to be detachably connected with the fixing seat.
Preferably, a return ring is arranged on the pull rod. Thus, when the pull rod is horizontally installed, the pull rod props against the end cover through the return ring when moving in a return process, and the pull rod sleeve return together.
The invention has the beneficial effects that: when the equipment moving part does linear motion, the pull rod is driven to move upwards, and when the positioning seat contacts the end cover, the pull rod drives the pull rod sleeve to start to move upwards until the first collision block contacts the travel switch to send a return signal. When the end cover contacts with the guide sleeve, the pull rod sleeve stops moving downwards, and the pull rod continues to move downwards until the second collision block contacts with the travel switch and stops moving downwards. The nested structure of the pull rod and the pull rod sleeve solves the problem that the travel switch is difficult to arrange under the condition of limited vertical space. By additionally arranging the second-stage rod sleeve, three-stage telescopic change is realized, and the applicability of the invention is further expanded. The invention has simple and practical structure, can be vertically installed or horizontally installed, ensures that two travel switches can be installed in a smaller vertical space through the telescopic structure, and can still realize the rigid driving of the collision block to the mechanical travel switch under the condition that the space is compressed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic plan view of the present invention, showing a two-stage telescopic structure in this example;
FIG. 3 is a schematic diagram of a three stage telescoping arrangement of the present invention;
fig. 4 is a schematic view of a horizontal mounting structure according to another embodiment of the present invention.
In the figure: travel switch 1, fixing seat 2, kidney-shaped hole 2.1, pull rod 3, pull rod sleeve 4, guide sleeve 5, first collision block 6, end cover 7, second collision block 8, positioning seat 9, secondary rod sleeve 10, protruding end 11, rod sleeve cover 12 and return ring 13.
Detailed Description
The technical solutions of the present invention (including the preferred ones) are further described in detail by way of fig. 1 to 3 and enumerating some alternative embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
As shown in fig. 1 and 2, the telescopic travel switch block-touching mechanism designed by the invention comprises a travel switch 1 and a fixed seat 2, wherein the travel switch 1 is fixed on the fixed seat 2; a pull rod 3 and a pull rod sleeve 4 are arranged beside the fixed seat 2, the pull rod 3 is sleeved in the pull rod sleeve 4, and the pull rod sleeve 4 is connected with the fixed seat 2 through a guide sleeve 5; the fixed seat 2 is provided with a waist-shaped hole 2.1 parallel to the axial direction of the pull rod 3, each travel switch 1 is matched with one waist-shaped hole 2.1 to be detachably connected with the fixed seat 2 through a bolt, and the two travel switches 1 are positioned at two ends of the longer side of the fixed seat 2; one end of the guide sleeve 5 is connected with the fixed seat 2, the other end of the guide sleeve is sleeved on the outer wall of the pull rod sleeve 4, and the pull rod sleeve 4 can axially slide in the guide sleeve 5; travel switches 1 are arranged on two sides of the guide sleeve 5; one end of the pull rod sleeve 4 is provided with a first collision block 6, the other end of the pull rod sleeve is provided with an end cover 7, the inner diameter of the end cover 7 is smaller than that of the pull rod sleeve 4, and the outer diameter of the pull rod sleeve 4 is smaller than that of the end cover 7; the upper part of the pull rod 3 is provided with a second collision block 8; one end of the pull rod 3 penetrates out of the end cover 7 to be connected with the driving device, and the other end of the pull rod can slide in the pull rod sleeve 4 and can be abutted with the end cover 7 for limiting; one end of the pull rod 3 penetrates out of the end cover 7 to be connected with the driving device, the bottom of the other end of the pull rod is provided with a positioning seat 9, and the diameter of the inner diameter of the end cover 7 which is smaller than the positioning seat 9 is smaller than or equal to the inner diameter of the pull rod sleeve 4.
As shown in fig. 3, a secondary rod sleeve 10 is arranged in the pull rod sleeve 4; the bottom of the secondary rod sleeve 10 is provided with a protruding end 11, and the outer diameter of the protruding end 11 is larger than the inner diameter of the end cover 7; the top of the secondary rod sleeve 10 is provided with a rod sleeve cover 12, the pull rod 3 penetrates out of the rod sleeve cover 12, and the diameter of the positioning seat 9 is larger than the inner diameter of the rod sleeve cover 12; the outer diameter of the rod sleeve cover 12 is larger than the inner diameter of the end cover 7. By additionally arranging the second-stage rod sleeve, three-stage telescopic change is realized, and the applicability of the invention is further expanded.
When the moving part of the device does linear motion, the pull rod 3 is driven to move upwards, when the positioning seat 9 contacts the end cover 7, the end cover 7 is fixedly connected with the end part of the pull rod sleeve 4, and at the moment, the pull rod 3 drives the pull rod sleeve 4 to start to move upwards until the first collision block 6 contacts with the travel switch on the fixing seat 2 to send a return signal. When the end cover 6 contacts the guide sleeve 5, the pull rod sleeve 4 stops moving downwards, and at the moment, the pull rod 3 continues moving downwards until the second collision block 8 contacts the travel switch on the fixed seat 2 to stop moving downwards.
As shown in fig. 4, a return ring 13 is provided on the pull rod 3. When the invention is horizontally installed, the pull rod can move to the left side of the figure by abutting against the end cover 7 through the return ring 13 during return stroke, and then return reset is carried out.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and any modification, combination, replacement, or improvement made within the spirit and principle of the present invention is included in the scope of the present invention.
Claims (6)
1. The utility model provides a piece mechanism is bumped to telescopic travel switch which characterized in that: the travel switch is fixed on the fixed seat; a pull rod and a pull rod sleeve are arranged beside the fixed seat, the pull rod sleeve is arranged in the pull rod sleeve, and the pull rod sleeve is connected with the fixed seat through a guide sleeve; one end of the guide sleeve is connected with the fixed seat, the other end of the guide sleeve is sleeved on the outer wall of the pull rod sleeve, and the pull rod sleeve can axially slide in the guide sleeve; travel switches are arranged on two sides of the guide sleeve; one end of the pull rod sleeve is provided with a first collision block, and the other end of the pull rod sleeve is provided with an end cover; a second collision block is arranged at the upper part of the pull rod; one end of the pull rod penetrates out of the end cover to be connected with the driving device, and the other end of the pull rod can slide in the pull rod sleeve and can be abutted and limited by the end cover.
2. The telescoping travel switch strike mechanism of claim 1, wherein: the inner diameter of the end cover is smaller than that of the pull rod sleeve, and the outer diameter of the pull rod sleeve is smaller than that of the end cover.
3. The telescopic travel switch strike mechanism of claim 1 or 2, further comprising: one end of the pull rod penetrates out of the end cover to be connected with the driving device, and the bottom of the other end of the pull rod is provided with a positioning seat; the inner diameter of the end cover is smaller than the diameter of the positioning seat and is smaller than or equal to the inner diameter of the pull rod sleeve.
4. The telescoping travel switch strike mechanism of claim 3, wherein: a secondary rod sleeve is arranged in the pull rod sleeve; the bottom of the secondary rod sleeve is provided with a protruding end, and the outer diameter of the protruding end is larger than the inner diameter of the end cover; the top of the secondary rod sleeve is provided with a rod sleeve cover, the pull rod penetrates out of the rod sleeve cover, and the diameter of the positioning seat is larger than the inner diameter of the rod sleeve cover; the outer diameter of the rod sleeve cover is larger than the inner diameter of the end cover.
5. The telescoping travel switch strike mechanism of claim 1, wherein: the fixing seat is provided with a waist-shaped hole parallel to the axial direction of the pull rod, and each travel switch is matched with one waist-shaped hole to be detachably connected with the fixing seat.
6. The telescoping travel switch strike mechanism of claim 1, wherein: and a return ring is arranged on the pull rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811061222.9A CN110896003A (en) | 2018-09-12 | 2018-09-12 | Telescopic travel switch collision block mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811061222.9A CN110896003A (en) | 2018-09-12 | 2018-09-12 | Telescopic travel switch collision block mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110896003A true CN110896003A (en) | 2020-03-20 |
Family
ID=69785497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811061222.9A Pending CN110896003A (en) | 2018-09-12 | 2018-09-12 | Telescopic travel switch collision block mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110896003A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114069473A (en) * | 2021-11-22 | 2022-02-18 | 国网福建省电力有限公司漳州供电公司 | 10kV insulating rod electric wire shearing device for live working and assembling method thereof |
-
2018
- 2018-09-12 CN CN201811061222.9A patent/CN110896003A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114069473A (en) * | 2021-11-22 | 2022-02-18 | 国网福建省电力有限公司漳州供电公司 | 10kV insulating rod electric wire shearing device for live working and assembling method thereof |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200320 |