CN218539165U - Upper limit switch for lead screw - Google Patents
Upper limit switch for lead screw Download PDFInfo
- Publication number
- CN218539165U CN218539165U CN202120501432.6U CN202120501432U CN218539165U CN 218539165 U CN218539165 U CN 218539165U CN 202120501432 U CN202120501432 U CN 202120501432U CN 218539165 U CN218539165 U CN 218539165U
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- China
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- lead screw
- switch
- seat body
- rod
- contact piece
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Abstract
The utility model relates to an upper limit switch for a lead screw, which comprises an upper seat body and a lower seat body, wherein the lower seat body is provided with a blocking piece which is provided with a groove, the upper seat body is provided with a switch component and a sliding seat, the sliding seat is provided with a movable rod and a pressure rod, the movable rod extends into the groove, and the end part of the movable rod is provided with a limit body; the switch assembly comprises a microswitch, the microswitch is provided with a contact piece, and the pressing rod is positioned above the contact piece. The utility model discloses when the lead screw rose to the highest position, through the depression bar contact piece of pushing down, can effectively close micro-gap switch for lead screw stop motion prevents lift platform's re-rising. The lifting platform has the advantages of simple structure, high sensitivity and almost zero failure rate, and contributes to realizing stable lifting and effective limiting of the lifting platform.
Description
Technical Field
The utility model relates to a limit switch, the last spacing of mainly used lead screw belongs to the technical field of switch.
Background
The lead screw is a core component in the lifting platform, and the quality and the function of the lead screw relate to the problems of whether the lifting of the lifting platform is stable, whether mute lifting can be realized and the like. Therefore, to realize the superiority of lift platform, the first task is to seek a lead screw with superior performance. However, the stroke limit in the screw rod is a technical problem in the present stage, and the stroke limit switch in the prior art has a complex structure, is difficult to install, has low sensitivity and a high failure rate, often has the condition of not being limited in time, causes excessive stroke, and cannot obtain satisfactory user experience.
Therefore, the research and development of a travel limit switch with simple structure, convenient installation, high sensitivity and low failure rate is the main research and development direction of technicians in the field at the present stage.
Based on this, provide the utility model discloses.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem of prior art, the utility model provides an go up limit switch for lead screw, its simple structure, sensitivity are high, the fault rate is almost zero, for realizing that lift platform's stable goes up and down and effective spacing contribution of making.
In order to achieve the purpose, the utility model is realized by the following technical proposal:
an upper limit switch for a lead screw comprises an upper seat body and a lower seat body, wherein the lower seat body is provided with a blocking piece, the blocking piece is provided with a groove, the upper seat body is provided with a switch assembly and a sliding seat, the sliding seat is provided with a movable rod and a pressure rod, the movable rod extends into the groove, and the end part of the movable rod is provided with a limit body; the switch assembly comprises a microswitch, the microswitch is provided with a contact piece, and the pressing rod is positioned above the contact piece.
The upper seat body is provided with a fixed seat, and the microswitch is arranged on the fixed seat.
The end of the moving rod is provided with a spring which is positioned between the fixed seat and the sliding seat.
The sliding rod is arranged in the sliding rail, and the sliding rod slides in the sliding rail.
The utility model has the advantages as follows:
the utility model is used for the last limit switch of lead screw when the lead screw rises to highest position, pushes down the contact piece through the depression bar, can effectively close micro-gap switch for lead screw stop motion prevents lift platform's re-rising. The lifting platform has the advantages of simple structure, high sensitivity and almost zero failure rate, and makes contribution to realizing stable lifting and effective limiting of the lifting platform.
Drawings
Fig. 1 is a schematic diagram of the switch open state of the present invention;
fig. 2 is a schematic diagram of the switch off state of the present invention;
wherein, 1 is an upper seat body, 2 is a lower seat body, 3 is a blocking piece, 4 is a groove, 5 is a sliding seat, 6 is a moving rod, 7 is a pressure rod, 8 is a limiting body, 9 is a microswitch, 10 is a contact piece, 11 is a spring, 12 is a fixed seat, 13 is a sliding rail, 14 is a lower part of a screw rod, and 15 is an upper part of the screw rod.
Detailed Description
The present invention will be further described with reference to specific examples, but the scope of the present invention is not limited thereto.
As shown in fig. 1 and 2, the utility model is used for last limit switch of lead screw, including upper base body 1 and lower base body 2, lower base body 2 is equipped with and blocks piece 3, blocks piece 3 and is equipped with groove 4, and switch module and sliding seat 5 are installed to upper base body 1, and upper base body 1 installs fixing base 12, and micro-gap switch 9 installs on fixing base 12. A moving rod 6 and a pressure rod 7 are arranged on the sliding seat 5, the moving rod 6 extends into the groove 4, and a limiting body 8 is arranged at the end part of the moving rod 6; the other end of the movable rod 6 is provided with a spring 11, and the spring 11 is positioned between the fixed seat 12 and the sliding seat 5. The switch assembly comprises a microswitch 9, the microswitch 9 is provided with a contact piece 10, and the pressure lever 7 is positioned above the contact piece 10.
When the screw rod sliding seat is used, the upper seat body 1 is arranged on the upper portion 15 of the screw rod, the lower seat body 2 is arranged on the lower portion 14 of the screw rod, the lower portion 14 of the screw rod further comprises a sliding rail 13, and when the screw rod sliding seat is used, the moving rod 6 slides in the sliding rail 13. When the lifting platform needs to ascend, the movable rod 6 slides in the slide rail 13 along with the upward movement of the upper part 15 of the screw rod, after the movable rod slides to a certain distance, the limiting body 8 is blocked by the blocking piece 3, so that the movable rod 6 can not slide any more, at the moment, the sliding seat 5 is pulled down along with the continuous ascending of the screw rod, the pressing rod 7 slowly approaches the contact piece 10, until the spring 11 is pressed to the lowest position, the pressing rod 7 presses the contact piece 10, the micro switch 9 is closed, the screw rod stops ascending, and therefore the lifting platform also stops ascending.
The utility model is used for the last limit switch of lead screw when the lead screw rises to highest position, pushes down contact piece 10 through depression bar 7, can effectively close micro-gap switch 9 for lead screw stop motion prevents lift platform's re-rising. The lifting platform has the advantages of simple structure, high sensitivity and almost zero failure rate, and makes contribution to realizing stable lifting and effective limiting of the lifting platform.
The structures and installation relations of the screw rod, the lifting platform and the like in the embodiment are common general knowledge in the field, and are not described herein again.
The above embodiments are only used for explaining the inventive concept of the present invention, and not for limiting the protection of the claims of the present invention, and all the insubstantial modifications of the present invention made by using the above inventive concept shall fall within the protection scope of the present invention.
Claims (4)
1. The utility model provides an upper limit switch for lead screw which characterized in that: the switch comprises an upper seat body and a lower seat body, wherein the lower seat body is provided with a blocking piece, the blocking piece is provided with a groove, the upper seat body is provided with a switch assembly and a sliding seat, the sliding seat is provided with a moving rod and a pressing rod, the moving rod extends into the groove, and the end part of the moving rod is provided with a limiting body; the switch assembly comprises a microswitch, the microswitch is provided with a contact piece, and the pressing rod is positioned above the contact piece.
2. The upper limit switch for a lead screw according to claim 1, wherein: the upper seat body is provided with a fixed seat, and the microswitch is arranged on the fixed seat.
3. The upper limit switch for the lead screw according to claim 2, wherein: the end of the moving rod is provided with a spring, and the spring is positioned between the fixed seat and the sliding seat.
4. The upper limit switch for a lead screw according to claim 1, characterized in that: the movable rod slides in the slide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120501432.6U CN218539165U (en) | 2021-03-09 | 2021-03-09 | Upper limit switch for lead screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120501432.6U CN218539165U (en) | 2021-03-09 | 2021-03-09 | Upper limit switch for lead screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218539165U true CN218539165U (en) | 2023-02-28 |
Family
ID=85258701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120501432.6U Active CN218539165U (en) | 2021-03-09 | 2021-03-09 | Upper limit switch for lead screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218539165U (en) |
-
2021
- 2021-03-09 CN CN202120501432.6U patent/CN218539165U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |