Tool for cleaning dynamic and static contacts of switch machine

By designing a tool for cleaning the motorized and stationary contacts of switch points, and utilizing the cooperation of the clamp and drive mechanism, the problem of inconvenient cleaning of the motorized and stationary contacts of switch points is solved, enabling cleaning operations with controllable force and improving operational convenience and stability.

CN223916047UActive Publication Date: 2026-02-17李海涛
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Patent Information

Application Number
CN202520195522.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2026-02-17
Estimated Expiration
2035-02-08

AI Technical Summary

Technical Problem

In the existing technology, cleaning the moving and stationary contacts of the switch is inconvenient and the wiping force is difficult to control, which can easily lead to contact deformation.

Method used

Design a tool for cleaning stationary and motorized contacts of a turnout. The tool uses a clamp to control the cleaning head to contact the contact, and a drive mechanism drives the cleaning head to rotate for cleaning. The combination of the clamp and the drive mechanism enables a cleaning operation with controllable force.

Benefits of technology

It enables convenient cleaning of stationary and motorized contacts of switch points, with controllable force, reducing the risk of contact deformation and improving the convenience and stability of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a tool for cleaning dynamic and static contacts of a switch. The tool comprises a clamping body and a cleaning assembly installed on the lower portion of the clamping body. The cleaning assembly comprises a driving mechanism and a cleaning head; the driving mechanism drives the cleaning head to rotate; the clamp body controls the cleaning head to make contact with the movable and static contacts of the switch and cooperates with the driving mechanism to drive the cleaning head to rotate so as to clean the movable and static contacts of the switch. According to the cleaning device, the clamping body can be used for controlling the small-size cleaning head to make contact with the movable and static contacts of the switch, the clamping body is matched with the driving mechanism to drive the cleaning head to rotate so as to clean the movable and static contacts of the switch, and operation is easy and convenient. The angle between the first plate body and the second plate body is fixed after deformation adjustment of the connecting plate, labor-saving operation can be achieved, and the force is easier to control; according to the utility model, the cleaning condition of the movable and static contacts of the switch can be better observed through the illuminating lamp.
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Description

Technical Field

[0001] This utility model belongs to the field of switch motor static contact maintenance technology, and in particular relates to a tool for cleaning switch motor static contact. Background Technology

[0002] The moving and stationary contact groups of a switch machine are crucial components of a railway signaling system, primarily used for detecting and reporting the status of turnouts. They are mechanically linked and synchronized with the turnout position, ensuring that the moving and stationary contacts accurately reflect the current turnout position during turnout switching and transmit status information to the signal control system. This is a vital guarantee for train operation safety. The maintenance and upkeep of the moving and stationary contact groups are essential for ensuring their long-term stability. Regular cleaning of the contacts prevents dust and dirt from affecting contact performance.

[0003] Currently, the common method for cleaning the moving and stationary contacts of switch machines is to wipe them one by one with a cloth. However, the moving and stationary contacts of switch machines are generally small, making manual wiping inconvenient and difficult to control, which can easily lead to deformation, especially of the stationary contacts. Furthermore, there are currently few tools specifically designed for cleaning the moving and stationary contacts of switch machines. Utility Model Content

[0004] Therefore, based on the above background, this utility model provides a tool for cleaning the moving and stationary contacts of a switch. It uses a clamp to control a small cleaning head to contact the moving and stationary contacts of the switch, and cooperates with the drive mechanism to drive the cleaning head to rotate in order to clean the moving and stationary contacts of the switch. It is not only easy to operate, but also the force can be controlled.

[0005] The technical solution provided by this utility model is as follows:

[0006] A tool for cleaning the stationary and moving contacts of a switch, comprising a clamp;

[0007] A cleaning assembly is installed at the lower part of the clamp; the cleaning assembly includes a drive mechanism and a cleaning head; the drive mechanism drives the cleaning head to rotate.

[0008] The clamp controls the cleaning head to contact the switch's moving and stationary contacts, and in conjunction with the drive mechanism, drives the cleaning head to rotate in order to clean the switch's moving and stationary contacts.

[0009] One possible implementation is that the clamp body includes a first clamping plate, a second clamping plate, and a connecting plate connecting the first clamping plate and the second clamping plate; the outer sides of the first clamping plate and the second clamping plate are respectively provided with a first housing and a second housing; the cleaning components are respectively installed at the bottom of the first housing and the second housing.

[0010] One possible implementation is that the drive mechanism includes a drive motor, and the drive shaft of the drive motor is detachably connected to the cleaning head.

[0011] One possible implementation is that the end portion of the drive shaft is hollow; the cleaning head is detachably connected to the hollow cavity of the drive shaft via a connecting rod.

[0012] One possible implementation is that the drive shaft has a locking hole corresponding to the hollow part, and the connecting rod has a spring button that cooperates with the locking hole;

[0013] Alternatively, the hollow portion of the drive shaft may have bolt holes, into which fastening bolts are screwed to secure the connecting rod.

[0014] One possible implementation is that the cleaning component further includes:

[0015] A compression spring, one end of which is mounted on the bottom plate of the first or second housing, and the other end of which is mounted on the drive motor.

[0016] One possible implementation is that a guide post is provided between the compression springs, one end of the guide post is fixed to the bottom plate of the first housing or the second housing, and the other end is movably inserted into the connecting cylinder provided on the drive motor.

[0017] One possible implementation is that the drive motor has a light on the side facing the cleaning head.

[0018] One possible implementation is that the connecting plate is provided with an adjusting screw that passes through both sides of the plate, and an outer adjusting nut and an inner adjusting nut are respectively threaded onto the inner and outer sides of the two sides of the connecting plate.

[0019] One possible implementation is that the first housing contains a battery.

[0020] One possible implementation is that the second housing contains a thermometer and hygrometer.

[0021] The beneficial effects of adopting the above technical solution are as follows:

[0022] This utility model utilizes a clamp to control the small-volume cleaning head to contact the motorized and stationary contact points of the switch, and in conjunction with the drive mechanism, drives the cleaning head to rotate to clean the motorized and stationary contact points of the switch. It only requires holding the clamp back and forth and moving it back and forth, and in conjunction with the drive mechanism, drives the cleaning head to rotate to wipe and clean the motorized and stationary contact points of the switch. The operation is simple and convenient.

[0023] This utility model, by adjusting the screw and its nut, fixes the angle between the first and second plates after the deformation adjustment of the connecting plate when the cleaning head contacts the moving and stationary contact points of the switch, which can achieve labor-saving operation and make the force easier to control.

[0024] This invention allows for better observation of the cleanliness of the stationary contact points of the switch using a lighting lamp. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0027] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0028] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 .

[0029] Figure 4 This is a schematic diagram of the structure of the present invention. Figure 4 .

[0030] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0031] Figure 6 This is a schematic diagram of the cleaning component according to an embodiment of the present invention.

[0032] Figure 7 This is a schematic diagram illustrating the usage state of cleaning the static contact points according to this utility model.

[0033] Figure 8 This is a schematic diagram illustrating the usage state of cleaning the moving contacts of this utility model. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "vertical," "circumferential," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] In the description of this utility model, "first feature" and "second feature" may include one or more of the indicated features. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the indicated features.

[0037] The present invention will be further described below with reference to the accompanying drawings.

[0038] Example 1: According to Figures 1 to 4 , Figure 6 The tool shown is for cleaning the stationary and motorized contacts of a switch, including a clamp 1; a cleaning assembly 3, installed on the lower part of the clamp 1; the cleaning assembly includes a drive mechanism and a cleaning head 333; the drive mechanism drives the cleaning head 333 to rotate.

[0039] The clamp controls the cleaning head 333 to contact the switch's moving and stationary contacts, and cooperates with the drive mechanism to drive the cleaning head to rotate in order to clean the switch's moving and stationary contacts.

[0040] The clamping body 1 includes a first clamping plate 11, a second clamping plate 12, and a connecting plate 13 connecting the first clamping plate 11 and the second clamping plate 12; as shown Figure 1As shown, the clamp is similar to a barbecue clamp, and the angle between the first and second clamping plates can be adjusted by the deformation of the connecting plate. In specific implementations, the clamp can be made of deformable stainless steel or PP material.

[0041] Specifically, such as Figures 1 to 4 As shown, the outer sides of the first clamping plate 11 and the second clamping plate 12 are respectively provided with a first housing 111 and a second housing 121; the cleaning components are respectively installed on the bottom of the first housing 111 and the second housing 121. The first housing and the second housing are made of the same material as the clamping body. Specifically, the first housing and the second housing can be fixed to the first clamping plate 11 and the second clamping plate 12 by heat fusion or welding; or they can be made as a single piece.

[0042] Specifically, the driving mechanism includes a drive motor 33, the drive shaft 331 of which is detachably connected to the cleaning head 333. This detachability facilitates replacement or subsequent cleaning of the cleaning head. Preferably, the cleaning head is a disposable cleaning head. In practice, the cleaning head is made of sponge, preferably oval or teardrop-shaped, but other shapes, such as square, are also possible. The shape is not limited as long as it can contact and adhere to the stationary and motorized contact points of the switch. The cleaning head is connected to the connecting rod 332, for example, by adhesive or by heat fusion. The connecting rod is preferably made of plastic.

[0043] The end portion of the drive shaft 331 is hollow, and the cleaning head 333 is detachably connected to the hollow cavity of the drive shaft by means of a connecting rod.

[0044] One implementation involves a locking hole corresponding to the hollow portion of the drive shaft, and a spring button on the connecting rod that engages with the locking hole (this is a conventional structure, similar to a spring button telescopic rod, and will not be elaborated further). There are two locking holes, corresponding to the hollow portion of the drive shaft. The spring button engages within the locking hole, allowing the cleaning head to be installed on the drive shaft. Pressing the spring button disengages it from the locking hole, and then pulling the connecting rod removes the cleaning head from the drive shaft. Alternatively, other methods can be used, such as bolt holes corresponding to the hollow portion of the drive shaft, into which fastening bolts 334 are screwed to secure the connecting rod. More specifically, the fastening bolts can be galvanized screws (e.g., duct screws). Figure 5 As shown in the diagram, the fastening bolt is screwed into the bolt hole, with its top tightly abutting the connecting rod. There can be two bolt holes, installed opposite each other.

[0045] In another embodiment, the cleaning component further includes:

[0046] A compression spring 32 is provided, with one end mounted on the bottom plate of the first housing 111 or the second housing 121, and the other end mounted on the drive motor 33. Preferably, the drive motor is located inside a motor housing, and the other end of the compression spring is mounted on the motor housing. The compression spring not only acts as a buffer—specifically, when subjected to impact or compression at the moving and stationary contacts—it generates certain deformation and internal stress. This deformation and stress absorb the impact energy, thereby mitigating the impact force generated by vibration and shock, and preventing changes in the contact pressure value of the stationary contact plate; it also provides support, ensuring the stability of the device's operation during use by leveraging its supporting capacity.

[0047] The drive motor 33 is provided with a light 34 on the side facing the cleaning head 333. Specifically, the light is a plurality of LED beads. Preferably, the LED beads are mounted on the motor housing. The light can be used to better observe the cleaning status of the switch's motor stationary contact points.

[0048] Specifically, one end of the compression spring is installed on the bottom plate of the first housing 111 or the second housing 121, and the other end is installed on the connecting cylinder provided on the motor housing.

[0049] Alternatively, in another embodiment, the connecting plate 13 is provided with an adjusting screw 6 that passes through both sides of the plate. An outer adjusting nut 7 and an inner adjusting nut 8 are threaded onto the adjusting screw 6 on the inner and outer sides of the two plates of the connecting plate, respectively. Through the cooperation of the adjusting screw and the inner and outer adjusting nuts, the angle between the first and second plates after deformation adjustment of the connecting plate is fixed, achieving labor-saving operation.

[0050] The second housing 121 houses a thermometer and hygrometer 9. Specifically, in another embodiment, the thermometer and hygrometer 9 is an electronic thermometer and hygrometer 9 with a display screen. The second housing has an opening that mates with the display screen. More specifically, the second housing has a slot adapted to the thermometer and hygrometer 9. The thermometer and hygrometer 9 is placed inside the second housing through the slot, and its display screen can be used to observe the displayed values. The main purpose of this embodiment is to monitor the temperature and humidity of the equipment's operating environment during operation, preventing the risk of short circuits caused by decreased insulation performance between the contacts of the automatic switchgear inside the machine due to excessive temperature and humidity, thus ensuring stable equipment quality.

[0051] The first housing 111 contains a battery, specifically a rechargeable battery, and the first housing has a charging port 5 that mates with the battery. The battery provides power to the drive mechanism, the lighting lamp, and the thermometer / hygrometer. In a specific application, another embodiment can be implemented where the clamp is covered with rubber, for example, by adhesive bonding the rubber to the clamp. The wires connecting the battery to the drive mechanism connected to the second housing, the wires connecting the battery to the lighting lamp, and the wires connecting the battery to the thermometer / hygrometer 9 are partially covered by the rubber to improve aesthetics and prevent disorderly placement of the wires. Specifically, some of the wires pass through the compression spring 31, which also serves to limit and guide the compression spring.

[0052] The first housing 111 is also provided with a switch 4 for controlling the power supply.

[0053] Example 2: According to Figures 1 to 6 The tool shown is for cleaning the stationary and motorized contacts of a switch. Compared to embodiment 1, this embodiment has a retractable support rod 100 on the connecting plate or the first clamping plate and the second clamping plate, for example... Figure 5 As shown, the support rod 100 includes an inner rod 101 and a hollow outer rod 102. One end of the inner rod 101 is mounted on the first clamping plate 11, and the other end is slidably fitted into the rod cavity of the outer rod 102. The end of the outer rod 102 facing away from the inner rod is mounted on the second clamping plate 12. For example, the inner rod or the outer rod is mounted on the first clamping plate or the second clamping plate by welding or heat fusion. The retractable support rod of this embodiment can provide a certain degree of support when the hand-held clamp is operated.

[0054] In specific implementation, this utility model can be as follows: Figure 6 and Figure 7 As shown, press the left and right plates of the connecting plate with your right hand to make the cleaning head contact the moving or stationary contact of the switch machine respectively. At this time, the cleaning head may deform slightly to ensure that it can fit snugly with the moving or stationary contact of the switch machine. Then adjust the inner and outer nuts on one side to keep the angle between the first and second clamping plates fixed. Then turn on the power switch, and the drive mechanism will drive the cleaning head to rotate through the drive shaft. The light will turn on. Then hold the clamp and slowly move it along the moving or stationary contact of the switch machine.

[0055] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A tool for cleaning the movable and static contact points of a switch machine, characterized in that it comprises a clamping body, a cleaning assembly mounted on the lower part of the clamping body, the cleaning assembly comprising a driving mechanism and a cleaning head, the driving mechanism driving the cleaning head to rotate, the clamping body controlling the contact between the cleaning head and the movable and static contact points of the switch machine, and the driving mechanism driving the cleaning head to rotate to clean the movable and static contact points of the switch machine.

2. The tool for cleaning the movable and static contact points of a switch machine according to claim 1, characterized in that the clamping body comprises a first clamping plate, a second clamping plate and a connecting plate connecting the first clamping plate and the second clamping plate, the outer side of the first clamping plate and the second clamping plate is respectively provided with a first box and a second box, and the cleaning assembly is respectively mounted on the bottom of the first box and the second box.

3. The tool for cleaning the movable and static contact points of a switch machine according to claim 2, characterized in that the driving mechanism comprises a driving motor, and the driving shaft of the driving motor is detachably connected with the cleaning head.

4. The tool for cleaning the movable and static contact points of a switch machine according to claim 3, characterized in that the end part of the driving shaft is hollow, the cleaning head is detachably connected by being inserted into the hollow cavity of the driving shaft through a connecting rod, the corresponding hollow part of the driving shaft is provided with a clamping hole, the connecting rod is provided with a spring button matched with the clamping hole, or the corresponding hollow part of the driving shaft is provided with a threaded hole, and a fastening bolt is screwed into the threaded hole to fix the connecting rod.

5. The tool for cleaning the movable and static contact points of a switch machine according to claim 2, characterized in that the cleaning assembly further comprises a compression spring, one end of the compression spring is mounted on the bottom plate of the first box or the second box, and the other end of the compression spring is mounted on the driving motor.

6. The tool for cleaning the movable and static contact points of a switch machine according to claim 2, characterized in that the side of the driving motor facing the cleaning head is provided with a lighting lamp.

8. The tool for cleaning the movable and static contact points of a switch machine according to claim 2, characterized in that the connecting plate is provided with an adjusting screw rod penetrating through the two side plate bodies, and the adjusting screw rod is respectively screwed with an outer adjusting nut and an inner adjusting nut on the inner and outer sides of the two side plates of the connecting plate.

9. The tool for cleaning the movable and static contact points of a switch machine according to claim 2, characterized in that the first box is provided with a battery.

10. The tool for cleaning the movable and static contact points of a switch machine according to claim 2, characterized in that the second box is provided with a hygrothermograph. ​ 5. A tool for cleaning the point of contact between the trolley and the slide rail of a switch machine according to claim 4, characterized in that, ​ ​ 6. A tool for cleaning the point of contact between the trolley and the static contact of a point machine according to claim 3, characterised in that, ​ ​ 7. A tool for cleaning the point of contact between the trolley and the slide rail of a switch machine according to claim 3, characterized in that, ​ ​ ​ ​ ​ ​ ​