CN219457373U - Travel switch and escalator - Google Patents

Abstract

The utility model provides a travel switch and an escalator, which comprise a switch body, a transmission piece and an adjusting piece. The switch body comprises a moving contact and a fixed contact. One end of the transmission piece is in transmission connection with the moving contact, so that the moving contact can move along the direction close to or far away from the fixed contact, and the moving contact and the fixed contact are correspondingly connected or disconnected. The adjusting piece is matched with the other end of the transmission piece in a moving way, so that the adjusting piece can move along the direction that the moving contact is close to or far away from the fixed contact. According to the adjusting piece, the adjusting piece can reciprocate along the direction close to or far away from the object to be measured, so that the adjusting piece can compensate the installation error of the switch body, the accurate adjustment of the distance between the travel switch and the object to be measured is achieved, the accuracy of the distance between the travel switch and the object to be measured is guaranteed, the situation that the travel switch is in misoperation or does not act is avoided, and the reliability of the travel switch and the escalator is improved.

Description

Travel switch and escalator

Technical Field

The utility model relates to the field of switches, in particular to a travel switch and an escalator.

Background

The travel switch is widely applied to the fields of various household appliances, automatic equipment and the like, and is particularly applied to the escalators in some public places. The traditional travel switch comprises a switch body and a fixed support, wherein the switch body is directly arranged on the fixed support, and the fixed support is in sliding connection with a truss in the escalator so as to adjust the distance between the switch body and an object to be detected. However, the conventional travel switch has low mounting accuracy, and is liable to malfunction or non-operation, and has low reliability.

Disclosure of Invention

Accordingly, it is necessary to provide a travel switch and an escalator, which solve the problems of low installation accuracy, easy malfunction or non-operation of the conventional travel switch, and low reliability.

The technical scheme is as follows:

in one aspect, there is provided a travel switch comprising:

the switch body comprises a moving contact and a fixed contact;

a transmission member; one end of the transmission piece is in transmission connection with the moving contact, so that the moving contact can move along the direction approaching to or separating from the fixed contact, and the moving contact and the fixed contact are correspondingly connected or disconnected;

the adjusting piece is matched with the other end of the transmission piece in a moving way, so that the adjusting piece can move along the direction that the moving contact is close to or far away from the fixed contact.

The technical scheme is further described as follows:

in one embodiment, the travel switch further comprises a mounting piece, the mounting piece is mounted at the other end of the transmission piece, and the adjusting piece is in movable fit with the mounting piece, so that the adjusting piece can move along the direction that the moving contact is close to or far away from the fixed contact.

In one embodiment, the travel switch further comprises a first locking member for locking the mounting member to the transmission member.

In one embodiment, the mounting member is provided with a slot near one side of the transmission member, the other end of the transmission member is in insertion fit with the slot, the other side of the mounting member is provided with a first threaded hole communicated with the slot, the first locking member is provided with a first bolt capable of being in threaded fit with the first threaded hole, when the other end of the transmission member is in insertion fit with the slot, the first bolt is in threaded connection with the first threaded hole, and the first bolt is in interference fit with the side wall of the transmission member so as to lock and connect the mounting member with the transmission member.

In one embodiment, along the direction that the moving contact is close to or far away from the fixed contact, one side of the mounting piece far away from the transmission piece is provided with a second threaded hole, the second threaded hole is staggered with the slot and the first threaded hole, the adjusting piece is provided with a screw rod, and the screw rod is in threaded connection with the second threaded hole, so that the screw rod can move along the direction that the moving contact is close to or far away from the fixed contact.

In one embodiment, an extension portion extending toward a side close to the switch body is further disposed on a side of the mounting member close to the transmission member, and when the mounting member is mounted on the other end of the transmission member, the extension portion is attached to the outer wall of the switch body.

In one embodiment, the travel switch further comprises a mounting mechanism, and the switch body is mounted on the mounting mechanism.

In one embodiment, the mounting mechanism further comprises a first bracket and a second bracket, the first bracket and the second bracket are in sliding fit along the direction that the moving contact is close to or far from the fixed contact, and the switch body is arranged on the second bracket.

In one embodiment, the mounting mechanism further comprises a second locking member capable of locking the first bracket to the second bracket.

In another aspect, an escalator is provided, including the travel switch.

The travel switch and the escalator in the above embodiment are used, when the travel switch is used, the switch body is arranged at one side of an object to be detected at intervals, the adjusting piece is located at one side of the switch body close to the object to be detected, the adjusting piece is driven to move relative to the transmission piece according to the preset interval requirement between the adjusting piece and the object to be detected, the adjusting piece can reciprocate along the direction close to or far away from the object to be detected, the adjusting piece can compensate the installation error of the switch body, accurate adjustment of the interval between the travel switch and the object to be detected is achieved, accuracy of the interval between the travel switch and the object to be detected is guaranteed, misoperation or non-operation of the travel switch is avoided, and reliability of the travel switch and the escalator is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a travel switch according to one embodiment;

FIG. 2 is a schematic view of the travel switch of FIG. 1 from another perspective;

FIG. 3 is a schematic view of the travel switch of FIG. 1 from a further perspective;

FIG. 4 is a schematic view of the adjusting member and the mounting member shown in FIG. 1;

FIG. 5 is a schematic view of the adjusting member and the mounting member of FIG. 4 from another perspective;

FIG. 6 is a schematic view of the first bracket in FIG. 1;

fig. 7 is a schematic structural view of the second bracket in fig. 1.

Reference numerals illustrate:

10. a travel switch; 100. a switch body; 110. a transmission member; 200. an adjusting member; 300. a mounting member; 310. a slot; 320. a first threaded hole; 330. a second threaded hole; 340. an extension; 400. a first locking member; 500. a mounting mechanism; 510. a first bracket; 511. a first chute; 512. a through hole; 513. riveting a nut; 514. a mounting hole; 520. a second bracket; 521. a protrusion; 522. a second chute; 523. a hand-held part; 530. and a second locking member.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

As shown in fig. 1, 2 and 3, in one embodiment, a travel switch 10 is provided and includes a switch body 100, a transmission member 110 and an adjustment member 200. The switch body 100 includes a moving contact and a fixed contact. One end of the transmission member 110 is in transmission connection with the moving contact, so that the moving contact can move along the direction approaching to or separating from the fixed contact, so as to correspondingly connect or disconnect the moving contact with the fixed contact. The adjusting member 200 is movably engaged with the other end of the transmission member 110 such that the adjusting member 200 can be moved in a direction in which the moving contact approaches or moves away from the fixed contact (as shown in a direction a of fig. 1).

In the travel switch 10 in the above embodiment, during use, the switch body 100 is arranged at one side of the object to be detected at intervals, the adjusting member 200 is located at one side of the switch body 100 close to the object to be detected, and then the adjusting member 200 is driven to move relative to the driving member 110 according to the preset interval requirement between the adjusting member 200 and the object to be detected, so that the adjusting member 200 can move along the direction close to or far away from the object to be detected, and further the adjusting member 200 can compensate the installation error of the switch body 100, thereby realizing the accurate adjustment of the interval between the travel switch 10 and the object to be detected, ensuring the accuracy of the interval between the travel switch 10 and the object to be detected, avoiding the occurrence of misoperation or non-actuation of the travel switch 10, and improving the reliability of the travel switch 10 and the escalator.

In this embodiment, the switch body 100 includes a housing and a spring, the fixed contact and the moving contact are disposed in the housing, one end of the transmission member 110 extends into the housing and is in transmission connection with the moving contact, the transmission member 110 and the housing are slidably engaged along a direction of the moving contact, which is close to or far from the fixed contact, and the spring is used for elastically connecting the transmission member 110 and the housing. Thus, when the distance between the adjusting member 200 and the object to be measured is greater than the preset distance, the adjusting member 200 moves in the direction approaching the object to be measured, so that the distance between the adjusting member 200 and the object to be measured is reduced to meet the preset requirement. When the distance between the adjusting member 200 and the object to be measured is smaller than the preset distance, the adjusting member 200 moves in a direction away from the object to be measured, so that the distance between the adjusting member 200 and the object to be measured is increased to meet the preset requirement. When an object to be detected collides with the adjusting member 200, the adjusting member 200 drives the driving member 110 to move along one side close to the shell, so that the driving member 110 drives the moving contact to move along one side close to the fixed contact, and the spring is compressed to store elastic potential energy, so that the moving contact can be connected with the fixed contact and generate corresponding electric signals, and whether the object to be detected moves can be judged according to whether the travel switch 10 generates corresponding electric signals or not. When the object to be detected is separated from the adjusting member 200, the spring releases elastic potential energy, so that the moving contact, the transmission member 110 and the adjusting member 200 are reset, and the moving contact is disconnected from the fixed contact, so as to ensure that the travel switch 10 can continuously detect whether the object to be detected moves or not.

The driving member 110 may be a driving rod, a driving shaft, a driving contact or other driving structures. In particular, in the present embodiment, the adjusting member 200 is provided as a transmission shaft, and the axial direction of the transmission shaft is the same as the direction along which the moving contact approaches or separates from the fixed contact.

The adjusting member 200 may be a sliding rod, a screw rod, an adjusting bolt or other adjusting structure. The moving fit of the end of the adjusting member 200 near the switch body 100 and the other end of the driving member 110 along the axial direction of the driving member 110 may be a manner that the end of the adjusting member 200 near the switch body 100 is directly connected with the other end of the driving member 110 in a sliding manner, a threaded manner or other moving connection manner, or may also be a manner that the adjusting member 200 is connected with the other end of the driving member 110 in a sliding manner, a threaded manner or other moving fit manner by means of an intermediate element (such as a mounting seat or a mounting frame).

Alternatively, the adjusting member 200 is provided as a sliding rod slidably connected to the other end of the driving member 110 in a direction in which the moving contact approaches or separates from the fixed contact, so that the sliding rod can move in the direction in which the moving contact approaches or separates from the fixed contact. In this way, the sliding rod can reciprocate along the direction close to or far away from the object to be measured to compensate the installation error of the switch body 100, so as to realize the accurate adjustment of the distance between the travel switch 10 and the object to be measured.

As shown in fig. 1, 4 and 5, optionally, the travel switch 10 further includes a mounting member 300, where the mounting member 300 is mounted on the other end of the transmission member 110, and the adjusting member 200 is movably matched with the mounting member 300, so that the adjusting member 200 can move along the direction that the moving contact approaches or separates from the fixed contact. Thus, the adjusting member 200 can be stably and reliably mounted on the transmission member 110 through the mounting member 300, and the conventional travel switch 10 is not required to be adjusted, so that the reliability and applicability of the travel switch 10 are improved.

As shown in fig. 1, 4 and 5, in one embodiment, the travel switch 10 further includes a first locking member 400, where the first locking member 400 is used to lock the mounting member 300 to the transmission member 110. In this way, the first locking member 400 can lock the mounting member 300 and the transmission member 110 into a whole, so that the mounting member 300 is prevented from moving relative to the transmission member 110 during use, and the reliability of the travel switch 10 is improved.

The first locking member 400 may be a bolt, a latch, or other locking structure.

As shown in fig. 1, 4 and 5, further, one side of the mounting member 300, which is close to the transmission member 110, is provided with a slot 310, the other end of the transmission member 110 is in plug-in fit with the slot 310, the other side of the mounting member 300 is provided with a first threaded hole 320 communicated with the slot 310, the first locking member 400 is provided with a first bolt capable of being in threaded fit with the first threaded hole 320, when the other end of the transmission member 110 is in plug-in fit with the slot 310, the first bolt is in threaded connection with the first threaded hole 320, and the first bolt is in interference fit with the side wall of the transmission member 110 so as to lock the mounting member 300 with the transmission member 110. In this way, the first bolt can lock the transmission member 110 and the mounting member 300 into a whole stably and reliably, and the reliability of the travel switch 10 is improved.

As shown in fig. 4 and 5, optionally, along the direction that the moving contact approaches or departs from the fixed contact, a second threaded hole 330 is provided on the side of the mounting member 300 that departs from the transmission member 110, the second threaded hole 330, the slot 310 and the first threaded hole 320 are both arranged in a staggered manner, and the adjusting member 200 is provided as a screw, and the screw is in threaded connection with the second threaded hole 330, so that the screw can move along the direction that the moving contact approaches or departs from the fixed contact. Thus, when the distance between the screw and the object to be measured needs to be increased, the screw is driven to rotate clockwise, so that the screw moves in a direction away from the object to be measured. When the distance between the screw and the object to be measured needs to be reduced, the screw is driven to rotate anticlockwise, so that the screw approaches to the object to be measured.

In other embodiments, when the distance between the screw and the object to be measured needs to be increased, the screw is driven to rotate counterclockwise, so that the screw moves in a direction away from the object to be measured. When the distance between the screw and the object to be measured needs to be reduced, the screw is driven to rotate clockwise, so that the screw approaches to the object to be measured.

As shown in fig. 2, 4 and 5, optionally, an extension portion 340 extending toward a side close to the switch body 100 is further provided on a side of the mounting member 300 close to the transmission member 110, and when the mounting member 300 is mounted on the other end of the transmission member 110, the extension portion 340 is attached to an outer wall of the switch body 100. In this way, in the process of installing the installation piece 300, the extension portion 340 can play a guiding role, so that the slot 310 can be fast in plug-in fit with the other end of the transmission piece 110, and convenience and efficiency of assembling the travel switch 10 are improved. When the mounting member 300 is mounted on the other end of the transmission member 110, whether the mounting position of the mounting member 300 relative to the transmission member 110 is accurate can be determined by whether the extending portion 340 is attached to the outer wall of the switch body 100, i.e. when the mounting member 300 is mounted on the other end of the transmission member 110, the extending portion 340 is attached to the outer wall of the switch body 100, so that the mounting position of the mounting member 300 relative to the transmission member 110 is accurate; when the mounting member 300 is mounted at the other end of the transmission member 110, the extension portion 340 is not attached to the outer wall of the switch body 100, so that the mounting position of the mounting member 300 relative to the transmission member 110 is inaccurate, and the reliability of the travel switch 10 is improved.

Wherein the extension 340 may be an extension plate, an extension flange, or other extension structure. Specifically, in the present embodiment, when the mounting member 300 is mounted to the other end of the transmission member 110, the extension 340 is attached to the outer wall of the housing.

As shown in fig. 1, 2 and 3, in one embodiment, the travel switch 10 further includes a mounting mechanism 500, and the switch body 100 is mounted on the mounting mechanism 500. In this way, the switch body 100 can be mounted at a preset position by the mounting mechanism 500, improving the convenience of mounting the travel switch 10.

As shown in fig. 1, fig. 6 and fig. 7, the mounting mechanism 500 further includes a first bracket 510 and a second bracket 520, the first bracket 510 and the second bracket 520 are slidably engaged along a direction in which the moving contact approaches or approaches away from the fixed contact, and the switch body 100 is disposed on the second bracket 520. So, after the first support 510 is installed in the preset position, the second support 520 and the first support 510 can be utilized to be in sliding fit, so that the second support 520 can drive the switch body 100, the transmission member 110 and the adjusting member 200 to reciprocate along the direction that the moving contact approaches or is far away from the fixed contact, so as to primarily adjust the distance between the adjusting member 200 and the object to be measured, further reduce the distance length of the adjusting member 200 to be compensated, and improve the convenience and efficiency of the assembly of the travel switch 10.

The first bracket 510 and the second bracket 520 are slidably engaged with each other along a direction in which the moving contact approaches or approaches the fixed contact, and may be engaged with the sliding block through a sliding slot, a pulley engaged with the sliding rail, or other sliding manners.

As shown in fig. 6 and 7, optionally, the first bracket 510 is provided with a first chute 511 extending along a direction that the moving contact approaches or departs from the fixed contact, and one side of the second bracket 520 near the first bracket 510 is provided with a protrusion 521, and the protrusion 521 is in sliding fit with the first chute 511. In this way, the second bracket 520 can slide stably and reliably with respect to the first bracket 510 through the protrusion 521 and the first chute 511, thereby improving the reliability of the travel switch 10.

Wherein, the quantity of the protrusions 521 can be flexibly adjusted according to the actual use requirement. For example, the number of protrusions 521 may be two, four, six, or the like. The number of the first sliding grooves 511 can be flexibly adjusted according to the actual use requirement. For example, the number of the first sliding grooves 511 may be one, two, three, or the like. In this embodiment, one first sliding slot 511 is correspondingly slidably engaged with two protrusions 521, and the two protrusions 521 are disposed at intervals along the axial direction of the transmission member 110. In this way, the contact area between the projection 521 and the inner wall of the first chute 511 increases, and the reliability of the travel switch 10 is improved.

As shown in fig. 6, the first bracket 510 further includes a mounting hole 514, and the mounting hole 514 is fixedly connected with an external part. In this way, the convenience of installation of the travel switch 10 is improved.

As shown in fig. 6 and 7, in one embodiment, the mounting mechanism 500 further includes a second locking member 530, where the second locking member 530 is capable of locking the first bracket 510 to the second bracket 520. In this way, the second locking member 530 can lock the first bracket 510 and the second bracket 520 together, so as to avoid the movement of the second bracket 520 relative to the first bracket 510 during the use process, and improve the reliability of the travel switch 10.

Wherein the second locking member 530 may be a bolt, a latch, or other locking structure.

As shown in fig. 6 and 7, further, the first bracket 510 is provided with a through hole 512, a press-riveting nut 513 correspondingly communicating with the through hole 512 is provided on a side of the first bracket 510 away from the second bracket 520, the second bracket 520 is provided with a second chute 522 extending along a direction of the moving contact approaching or departing from the fixed contact, the second chute 522 is correspondingly provided with the through hole 512, so that the second chute 522 can be kept communicating with the through hole 512 in the process of sliding matching the protrusion 521 with the first chute 511, and the second locking piece 530 is provided as a second bolt, and the second bolt can pass through the second chute 522 and the through hole 512 and is in threaded connection with the press-riveting nut 513. In this way, the second bolt can cooperate with the clinch nut 513 to lock the second bracket 520 and the first bracket 510 into a whole, thereby improving the reliability of the travel switch 10.

As shown in fig. 7, alternatively, a hand-holding part 523 is provided on a side of the second bracket 520 remote from the first bracket 510. In this way, the installer can drive the second bracket 520 to slide with respect to the first bracket 510 by the hand-held portion 523, improving the convenience of the assembly of the travel switch 10.

The handhold portion 523 may be a side plate, a handle, or other structure that facilitates handholding.

In one embodiment, an escalator is provided that includes the travel switch 10 of any of the embodiments described above.

In the escalator in the above embodiment, during use, the switch body 100 is arranged at one side of the object to be detected at intervals, the adjusting piece 200 is located at one side of the switch body 100 close to the object to be detected, and then the adjusting piece 200 is driven to move relative to the transmission piece 110 according to the preset interval requirement between the adjusting piece 200 and the object to be detected, so that the adjusting piece 200 can reciprocate along the direction close to or far away from the object to be detected, and further the adjusting piece 200 can compensate the installation error of the switch body 100, thereby realizing the accurate adjustment of the interval between the travel switch 10 and the object to be detected, ensuring the accuracy of the interval between the travel switch 10 and the object to be detected, avoiding the occurrence of misoperation or non-actuation of the travel switch 10, and improving the reliability of the escalator.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. The term "and/or" as used in this utility model includes any and all combinations of one or more of the associated listed items.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

It will be further understood that when interpreting the connection or positional relationship of elements, although not explicitly described, the connection and positional relationship are to be interpreted as including the range of errors that should be within an acceptable range of deviations from the particular values as determined by those skilled in the art. For example, "about," "approximately," or "substantially" may mean within one or more standard deviations, and is not limited herein.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A travel switch, comprising:

the switch body comprises a moving contact and a fixed contact;

a transmission member; one end of the transmission piece is in transmission connection with the moving contact, so that the moving contact can move along the direction approaching to or separating from the fixed contact, and the moving contact and the fixed contact are correspondingly connected or disconnected;

the adjusting piece is matched with the other end of the transmission piece in a moving way, so that the adjusting piece can move along the direction that the moving contact is close to or far away from the fixed contact.

2. The travel switch of claim 1, further comprising a mounting member mounted to the other end of the transmission member, the adjustment member being in moving engagement with the mounting member such that the adjustment member is movable in a direction in which the movable contact approaches or separates from the stationary contact.

3. The travel switch of claim 2, further comprising a first locking member for locking connection of the mounting member with the transmission member.

4. A travel switch according to claim 3, wherein a slot is provided on one side of the mounting member adjacent to the transmission member, the other end of the transmission member is in socket engagement with the slot, a first threaded hole is provided on the other side of the mounting member in communication with the slot, the first locking member is provided as a first bolt capable of being in threaded engagement with the first threaded hole, when the other end of the transmission member is in socket engagement with the slot, the first bolt is in threaded engagement with the first threaded hole, and the first bolt is in interference engagement with a side wall of the transmission member to lock the mounting member with the transmission member.

5. The travel switch of claim 4, wherein a second threaded hole is formed in a side, away from the transmission member, of the mounting member along a direction in which the moving contact approaches or leaves the fixed contact, the second threaded hole is arranged in a staggered manner with the slot and the first threaded hole, and the adjusting member is arranged as a screw rod in threaded connection with the second threaded hole, so that the screw rod can move along a direction in which the moving contact approaches or leaves the fixed contact.

6. A travel switch according to any one of claims 2 to 5, wherein the side of the mounting member adjacent the transmission member is further provided with an extension portion extending towards the side adjacent the switch body, the extension portion being in abutment with the outer wall of the switch body when the mounting member is mounted to the other end of the transmission member.

7. The travel switch of any one of claims 1 to 5, further comprising a mounting mechanism, the switch body being mounted on the mounting mechanism.

8. The travel switch of claim 7, wherein the mounting mechanism further comprises a first bracket and a second bracket, the first bracket and the second bracket are slidably engaged in a direction in which the moving contact approaches or departs from the stationary contact, and the switch body is disposed on the second bracket.

9. The travel switch of claim 8, wherein the mounting mechanism further comprises a second locking member capable of locking the first bracket to the second bracket.

10. An escalator comprising a travel switch as claimed in any one of claims 1 to 9.