CN213366417U - Limit switch and conveyer - Google Patents
Limit switch and conveyer Download PDFInfo
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- CN213366417U CN213366417U CN202022398600.1U CN202022398600U CN213366417U CN 213366417 U CN213366417 U CN 213366417U CN 202022398600 U CN202022398600 U CN 202022398600U CN 213366417 U CN213366417 U CN 213366417U
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- base
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- limit switch
- slider
- limit
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Abstract
The utility model discloses a limit switch and conveyer, wherein, limit switch includes base, detection piece and detection device, but the relative activity of detection piece locates the base to have initial position, and receive external force and the detection position of shifting relative to the base, the detection piece is rotationally installed for the base; the detection device is used for detecting the relative displacement between the detection block and the base so as to send a limit signal when the detection block is at a detection position. The utility model provides an among the technical scheme, have the pivoted degree of freedom through detecting the piece for can all take place to shift under the atress of a plurality of directions, make it is in and detects the position to detect the piece, thereby detect out the barrier, detection device sends limit signal, only has the degree of freedom of one-way activity with the detection piece of solving current limit switch, can only detect the barrier of this direction.
Description
Technical Field
The utility model relates to a commodity circulation haulage equipment field especially relates to limit switch and conveyer.
Background
A limit switch is an electrical switch used to define the limits of movement of a transporter or to detect an object approaching a collision. The limit switch is arranged on the limit position of the controlled part, and when the controlled part reaches the limit position and is contacted with or close to the control switches, the limit switch controls the motor through the control circuit to play a limiting role.
At present, a common limit switch can only detect collision in a single direction generally, and if the collision is detected in multiple directions, a plurality of one-way limit switches are needed to be used in the multiple directions, so that the structure is relatively overstaffed, and the cost and the electrical risk are relatively high.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a limit switch and conveyer, aim at solving current limit switch and can only carry out one-way detection.
In order to achieve the above object, the utility model provides a limit switch, a serial communication port, limit switch includes:
a base;
the detection block is arranged on the base in a relatively movable mode so as to have an initial position and a detection position which is shifted relative to the base under the action of external force, and the detection block is rotatably installed relative to the base; and the number of the first and second groups,
the detection device is used for detecting the relative displacement between the detection block and the base so as to send a limit signal when the detection block is at a detection position.
Optionally, the limit switch includes a rotating shaft, the detection block is rotatably mounted on the base through the rotating shaft, and the rotating shaft is slidably mounted on the base along a main detection direction.
Optionally, the primary detection direction is perpendicular to the rotation axis.
Optionally, the limit switch further includes a slider, the rotating shaft is disposed on the slider, so that the detecting block is rotatably mounted on the slider, the base is further provided with a guide rail extending along the main detecting direction, and the slider is matched with the guide rail to be slidably mounted on the base.
Optionally, the limit switch further includes a first reset structure, one end of the first reset structure is connected to the detection block, and the other end of the first reset structure is connected to the sliding block, so as to provide a reset force when the detection block rotates relative to the sliding block, so that the detection block returns to the initial position.
Optionally, the first reset structure comprises a first tension spring, a first mounting column is convexly arranged on the surface of the detection block, a second mounting column is convexly arranged on the surface of the sliding block, one end of the first tension spring is connected with the first mounting column, and the other end of the first tension spring is connected with the second mounting column.
Optionally, the limit switch further includes a second reset structure, one end of the second reset structure is connected to the slider, and the other end of the second reset structure is connected to the base, so as to provide a reset force when the detection block slides relative to the base, so that the slider returns to the initial position.
Optionally, the second reset structure comprises:
a limit plate provided to the guide rail to limit a moving stroke of the slider in the main detection direction, and,
and one end of the second tension spring is connected with the sliding block, and the other end of the second tension spring is connected with the limiting plate.
Optionally, the detection device includes a first correlation switch and a second correlation switch separately disposed on the base and the detection block, the first correlation switch and the second correlation switch are correlated when the detection block is at the initial position, and the detection device is configured to send a limit signal when the first correlation switch and the second correlation switch are misaligned.
The utility model also provides a conveyer, conveyer includes limit switch, conveyer is along the activity of main detection direction. Wherein, limit switch includes:
a base;
the detection block is arranged on the base in a relatively movable mode so as to have an initial position and a detection position which is shifted relative to the base under the action of external force, and the detection block is rotatably installed relative to the base; and the number of the first and second groups,
the detection device is used for detecting the relative displacement between the detection block and the base so as to send a limit signal when the detection block is at a detection position.
The utility model provides an among the technical scheme, have the pivoted degree of freedom through detecting the piece for can all take place to shift under the atress of a plurality of directions, make it is in and detects the position to detect the piece, thereby detect out the barrier, detection device sends limit signal, only has the degree of freedom of one-way activity with the detection piece of solving current limit switch, can only detect the barrier of this direction.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic perspective view of a conventional limit switch;
FIG. 2 is a schematic plan view of the limit switch of FIG. 1 illustrating a comparison of force states along a primary detection direction;
fig. 3 is a schematic plan view of the limit switch in fig. 1 comparing the stress state along the non-primary detection direction.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
6 | |
| 1 | |
7 | |
| 2 | |
71 | |
| 3 | |
72 | |
| 31 | |
73 | |
| 32 | |
8 | |
| 4 | |
81 | Limiting plate |
| 5 | |
82 | Second tension spring |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
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 efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
At present, a common limit switch can only detect collision in a single direction generally, and if the collision is detected in multiple directions, a plurality of one-way limit switches are needed to be used in the multiple directions, so that the structure is relatively overstaffed, and the cost and the electrical risk are relatively high.
In order to solve the above problem, the present invention provides a limit switch 100, and fig. 1 to 3 illustrate a specific embodiment of the limit switch.
Referring to fig. 1 to 3, the limit switch 100 includes a base 1, a detecting block 2 and a detecting device 3, wherein the detecting block 2 is movably disposed on the base 1 to have an initial position and a detecting position shifted relative to the base by an external force, the detecting block 2 is rotatably mounted relative to the base 1, and the detecting device 3 is configured to detect a relative displacement between the detecting block 2 and the base 1 to send a limit signal when the detecting block 2 is at the detecting position.
The utility model provides an among the technical scheme, because of it is mobilizable to detect piece 2 locates base 1, just detect piece 2 for base 1 is rotationally installed, works as detect piece 2 with when base 1 is static relatively, it is in to detect piece 2 initial position, detection device 3 can not send limit signal. When the detection block 2 receives forces from a plurality of directions, the detection block 2 can be displaced due to the rotation freedom of the detection block 2, so that an obstacle is detected, the detection block 2 is positioned at a detection position, and the detection device 3 sends a limit signal. The utility model discloses a detect piece 2 for base 1 is rotationally installed, solves the problem that current limit switch can only the folk prescription to detect the collision, need not be in multi-direction a plurality of one-way limit switch that use, so, the structure is comparatively simple, and the cost is lower relatively.
Specifically, there are many ways to realize the movement of the detection block 2, for example, a sliding installation, a rotating installation or a combination of sliding and rotating, referring to fig. 1, in the embodiment of the present application, the limit switch 100 includes a rotating shaft 4, the detection block 2 is rotatably installed on the base 1 through the rotating shaft 4, the rotating shaft 4 is slidably installed on the base 1 along the main detection direction, and by arranging the rotating shaft 4 slidably installed on the base 1, both the rotating movement and the sliding movement are realized, so the structure is more compact.
Further, since the detecting block 2 is respectively subjected to forces from a plurality of directions, the movement can be realized, so that the detecting block 2 can detect the forces from different directions, referring to fig. 2 and 3, in the embodiment of the present application, the main detecting direction is perpendicular to the rotating shaft.
Specifically, realize the gliding mode of pivot 4 has a great variety, for example set up the spout on the base 1, pivot 4 install in the spout, in the embodiment of this application, limit switch still includes slider 5, pivot 4 is located slider 5, so that detect piece 2 rotationally install in slider 5, still be equipped with on the base 1 along mainly detect the guide rail 6 that the direction extends, slider 5 with guide rail 6 cooperatees, with slidable mounting in base 1, through setting up slider 5 with the cooperation of guide rail 6 realizes sliding, the slider with area of contact between the guide rail 6 is bigger, and it is more steady to slide.
Further, in order to enable the detection block 2 to return to the initial position after the detection block 2 and the base 1 are relatively displaced, a reset structure may be provided, in an embodiment of the present application, the limit switch 100 further includes a first reset structure 7, one end of the first reset structure 7 is connected to the detection block, and the other end of the first reset structure 7 is connected to the slider 5, so that when the detection block 2 rotates relative to the slider, a reset force is provided to enable the detection block 2 to return to the initial position.
Specifically, in the embodiment of this application, first canceling release mechanical system includes first extension spring 71, it is equipped with first erection column 72 to detect 2 surperficial protruding, 5 surperficial protruding second erection columns 73 that are equipped with of slider, first extension spring 71 one end with first erection column 72 is connected, the other end with second erection column 73 is connected, through setting up first extension spring 71, work as when detecting 2 emergence rotations of piece, first extension spring 71 is stretched, and when external force disappeared, stretched elastic deformation is resumeed to first extension spring 71, drives detect first erection column 72 on the piece 2 and reset, thereby make detect 2 and reset, so not only simple structure to the reset effect that reaches is also fine.
Further, in order to enable the slider 5 to return to the initial position after the slider 5 and the base 1 are relatively displaced, a reset structure is also needed, in the embodiment of the present application, the limit switch further includes a second reset structure 8, one end of the second reset structure 8 is connected to the slider 5, and the other end of the second reset structure 8 is connected to the base 1, so as to provide a reset force when the detection block 2 slides relative to the base 1, so that the slider 5 returns to the initial position.
Specifically, in the embodiment of this application, the second reset structure includes limiting plate 81 and second extension spring 82, limiting plate 81 is located guide rail 6, is used for the restriction slider 5 is followed the activity stroke of main direction of detection, second extension spring 82 one end with slider 5 is connected, the other end with limiting plate 81 is connected, and is same, through setting up second extension spring 82 works as when slider 5 receives external force to take place to slide, elastic deformation takes place for second extension spring 82 by the compression, and when external force disappeared, the compression second extension spring 82 resumes elastic deformation, promotes slider 2 and resets, thereby makes detection piece 2 resets, can be convenient reach the effect that resets, simple structure not only to the effect that reaches is also fine.
Further, in order to conveniently detect that the detection block 2 is displaced relative to the base 1, in the embodiment of the present application, the detection device 3 includes a first correlation switch 31 and a second correlation switch 32 respectively disposed on the base 1 and the detection block 2, the first correlation switch 31 and the second correlation switch 32 are correlated when the detection block 2 is at the initial position, and the detection device 3 is configured to send a limit signal when the first correlation switch 31 and the second correlation switch 32 are misaligned. Specifically, the first correlation switch 31 is a proximity switch installed on the base 1, the second correlation switch is a circular hole formed in the detection block 2, the proximity switch and the circular hole are aligned in the vertical direction in an initial state, and when no external force is applied, the proximity switch is not triggered to send a limit signal; referring to fig. 2, in the embodiment of the present application, when the detection block 2 receives an external force from a forward direction, the detection block 2 drives the sliding block 5 to slide on the guide rail 6 by a distance a, and at this time, the proximity switch is dislocated from the circular hole, and the proximity switch is triggered to send a limit signal; referring to fig. 3, in the embodiment of the present application, when the detection block 2 receives an external force from a non-positive direction, the detection block 2 rotates relative to the base 1 by a rotation angle b, and at this time, the proximity switch is also dislocated from the circular hole, and the proximity switch is triggered to send a limit signal. The first and second opposite- emitting switches 31 and 32 may be proximity switches, magnetic switches, photoelectric switches, or the like, and are preferably proximity switches.
The utility model provides a conveyer, including foretell limit switch 100, conveyer includes foretell limit switch 100's whole technical characteristics, consequently, also has the technological effect that above-mentioned whole technical characteristics brought, and here is no longer repeated one by one.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. A limit switch, characterized in that the limit switch comprises:
a base;
the detection block is arranged on the base in a relatively movable mode so as to have an initial position and a detection position which is shifted relative to the base under the action of external force, and the detection block is rotatably installed relative to the base; and the number of the first and second groups,
the detection device is used for detecting the relative displacement between the detection block and the base so as to send a limit signal when the detection block is at a detection position.
2. The limit switch of claim 1, wherein the limit switch includes a shaft, the detection block being rotatably mounted to the base via the shaft, the shaft being slidably mounted to the base along a primary detection direction.
3. Limit switch according to claim 2, characterized in that the main detection direction is perpendicular to the axis of rotation.
4. The limit switch according to claim 3, further comprising a slider, wherein the shaft is disposed on the slider such that the detecting block is rotatably mounted on the slider, and wherein the base further comprises a guide rail extending along the main detecting direction, and wherein the slider is engaged with the guide rail to be slidably mounted on the base.
5. The limit switch according to claim 4, further comprising a first reset structure having one end connected to the sensing mass and another end connected to the slider for providing a reset force to return the sensing mass to the initial position when the sensing mass is rotated relative to the slider.
6. The limit switch according to claim 5, wherein the first reset structure comprises a first tension spring, the surface of the detection block is convexly provided with a first mounting column, the surface of the sliding block is convexly provided with a second mounting column, one end of the first tension spring is connected with the first mounting column, and the other end of the first tension spring is connected with the second mounting column.
7. The limit switch of claim 4, further comprising a second return structure, wherein one end of the second return structure is connected to the slider and the other end of the second return structure is connected to the base, so as to provide a return force to return the slider to the initial position when the detection block slides relative to the base.
8. The limit switch of claim 7, wherein the second reset mechanism comprises:
a limit plate provided to the guide rail to limit a moving stroke of the slider in the main detection direction, and,
and one end of the second tension spring is connected with the sliding block, and the other end of the second tension spring is connected with the limiting plate.
9. The limit switch of claim 1, wherein the detection device comprises a first correlation switch and a second correlation switch respectively disposed on the base and the detection block, the first correlation switch and the second correlation switch being correlated when the detection block is in the initial position, the detection device being configured to send a limit signal when the first correlation switch and the second correlation switch are misaligned.
10. A transport device, characterized in that it comprises a limit switch according to any of claims 1 to 9, said transport device being movable in a main detection direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022398600.1U CN213366417U (en) | 2020-10-23 | 2020-10-23 | Limit switch and conveyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022398600.1U CN213366417U (en) | 2020-10-23 | 2020-10-23 | Limit switch and conveyer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213366417U true CN213366417U (en) | 2021-06-04 |
Family
ID=76132123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022398600.1U Active CN213366417U (en) | 2020-10-23 | 2020-10-23 | Limit switch and conveyer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213366417U (en) |
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2020
- 2020-10-23 CN CN202022398600.1U patent/CN213366417U/en active Active
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