Rail switching locking structure

Abstract

The utility model discloses a rail switching locking structure, and belongs to the field of rails. Comprising a track switching section, at least one hollow notch formed in the length direction is formed in each of the two end faces of the track switching section, and a locking device is arranged in each hollow notch; the locking device comprises a fixed section and a telescopic section, all the fixed sections are fixed in the hollow notch, the telescopic section is connected to the fixed sections through a telescopic driving mechanism, and the telescopic section is driven by the telescopic driving mechanism to stretch out of the hollow notch or completely retract into the hollow notch in the length direction. The locking device is installed in the hollow track switching section, and the functions of locking and unlocking the track are achieved through stretching out and drawing back of the telescopic section. According to the rail switching device, the defects of an external locking mechanism are overcome, the external size of the rail is reduced, the influence of the external environment is avoided, the mechanical failure risk is reduced, the rail switching device is more stable and reliable, and the safety and the operation efficiency of rail switching are improved. The structure is compact, operation is stable, and maintenance is easy.

Description

Technical Field

[0001] The utility model relates to the field of tracks, in particular to a track switching and locking structure. Background Art

[0002] Mounted robots are used in indoor ceilings (such as factory buildings), tunnel ceilings, and other application scenarios. They are mounted on fixed tracks at the top and move along the tracks. Examples include inspection robots in tunnels or factories, firefighting robots in tunnels, etc.

[0003] Inspection robots, for example, offer safer, more efficient, and more accurate inspection services, saving businesses time and labor costs. They have become indispensable smart devices in many industries. In the transportation sector, inspection robots are often used for inspections in tunnels and other road sections.

[0004] Generally, it is necessary to set up a walking track on the top of a tunnel, etc., and the mounted robot walks on the walking track and performs corresponding functions. In actual use, it is often necessary to switch tracks for the mounted robot. For example, for complex pipeline corridors and the intricate routes inside substations, the single-track inspection function cannot meet the needs, and multiple tracks need to be set up. For another example, in order to facilitate robot maintenance, additional maintenance tracks are generally set up. The above situations make the robot have multiple tracks, and the robot needs to be switched from one track to another.

[0005] One existing method for switching tracks is to move a section of track (referred to in this utility model as a track switching section) along with the mounted robot from one track to another. After the move, the track switching section needs to be connected and locked to the original track.

[0006] The existing locking mechanism adopts an external design. The locking mechanism is located outside the track, which not only increases the external volume of the track, but is also affected by the external environment and has a certain risk of mechanical failure. Utility Model Content

[0007] The utility model provides a track switching locking structure, which reduces the external volume of the track, avoids the influence of the external environment, reduces the risk of mechanical failure, and improves the safety and operating efficiency of track system switching.

[0008] The utility model provides the following technical solutions:

[0009] A track switching locking structure comprises a track switching section, wherein at least one hollow notch is formed on both end surfaces of the track switching section, the hollow notch being arranged along the length direction of the track switching section, and a locking device is arranged in the hollow notch;

[0010] The locking device includes a fixed section and a telescopic section, wherein the fixed section is entirely located in the hollow slot of the track switching section, and the fixed section is fixed in the hollow slot of the track switching section. The telescopic section is connected to the fixed section via a telescopic drive mechanism, and the telescopic section is driven by the telescopic drive mechanism to extend out of the hollow slot of the track switching section or completely retract into the hollow slot of the track switching section along the length direction of the track switching section.

[0011] Furthermore, the fixed section includes a lock housing, and the telescopic drive mechanism includes a push rod motor. The push rod motor is arranged in the lock housing, and the push rod motor is connected to the telescopic section through a push rod.

[0012] Furthermore, a linear bearing pair is provided on the push rod in the lock housing, and the push rod passes through an opening on the end face of the lock housing to connect with the telescopic section, and an elastic retaining ring is provided between the opening and the linear bearing pair.

[0013] Furthermore, a fixing hole is provided on the lock housing, and the fixing section is fixed in the hollow notch of the track switching section through bolts and the fixing hole.

[0014] Furthermore, the bolt passes through the hollow slot from the outside of the track switching section and is connected to the fixing hole to fix the fixing section.

[0015] Furthermore, the telescopic section includes a locking rod, the push rod passes into the locking rod, and the locking rod and the push rod are fixed by a nut.

[0016] Furthermore, a nut groove is provided on the side of the locking rod, the end of the push rod is exposed in the nut groove, the nut is connected to the end of the push rod in the nut groove, and the locking rod and the push rod are fixed; the free end of the locking rod is provided with an insertion guide portion.

[0017] Furthermore, the hollow notch is provided along the length direction of the track switching section;

[0018] Alternatively, the hollow slots corresponding to the two end surfaces of the track switching segment are intermittently arranged, and the length of the hollow slots is greater than the length of the fixed segment.

[0019] Furthermore, the track switching section includes a vertically arranged wall panel and a tread panel located at the bottom end of the wall panel and arranged horizontally, and the wall panel and the tread panel are formed into an inverted T shape as a whole.

[0020] Furthermore, the hollow slot is provided on the wall panel and / or the tread panel, and the cross-sectional shape of the fixing section is adapted to the cross-sectional shape of the hollow slot.

[0021] The utility model has the following beneficial effects:

[0022] The locking device of this utility model is installed inside the hollow track switching section. The expansion and contraction of the telescopic section achieves dynamic locking and unlocking of the track. This utility model overcomes the drawbacks of external locking mechanisms, reduces the external volume of the track, avoids external environmental influences, reduces the risk of mechanical failure, and is more stable and reliable, improving the safety and operational efficiency of track system switching. Furthermore, it features a compact structure, stable operation, and simple maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an overall schematic diagram of the track switching and locking structure of the present utility model;

[0024] Figure 2 Schematic diagram of the external structure of the locking device;

[0025] Figure 3 is a partial cross-sectional schematic diagram of the locking device;

[0026] Figure 4 for Figure 3 The main view;

[0027] Figure 5 This is a schematic diagram of the end face of the track switching section. DETAILED DESCRIPTION

[0028] In order to make the technical problems to be solved, technical solutions and advantages of the present invention clearer, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0029] The utility model provides a track switching locking structure, such as Figure 1-5 As shown, it includes a track switching section 115 , and at least one hollow slot 111 is provided on both end faces of the track switching section 115 . The hollow slot 111 is arranged along the length direction of the track switching section 115 , and a locking device 116 is provided in the hollow slot 111 .

[0030] The locking device 116 includes a fixed section 117 and a telescopic section 118 . The fixed section 117 is entirely located in the hollow slot 111 of the track switching section 115 , and the fixed section 117 is fixed in the hollow slot 111 of the track switching section 115 .

[0031] The telescopic section 118 is connected to the fixed section 117 via a telescopic drive mechanism 130. Driven by the telescopic drive mechanism 130, the telescopic section 118 extends and retracts along the length of the track switching section 115. When the telescopic section 118 is extended, it fully or partially extends out of the hollow slot 111 of the track switching section 115. When the telescopic section 118 is retracted, it is completely retracted into the hollow slot 111 of the track switching section 115.

[0032] When switching is required, the track switching section 115 together with the robot mounted thereon is moved to the position of the track to be switched by the switching movement mechanism. The switching movement mechanism can be various forms of translation mechanisms, and the present invention does not limit this.

[0033] The track switching locking structure of the present invention is matched with the track to be switched, and the track to be switched has a disconnection position of a certain length. The length of the disconnection position is consistent with the length of the track switching section 115. The track switching section 115 after switching is exactly located in the disconnection position. Both ends of the disconnection position of the track to be switched have locking notches similar to the hollow notches 111 of the track switching section 115. After the track switching section 115 is switched into place, the telescopic drive mechanism 130 controls the telescopic section 118 to extend out of the hollow notch 111 of the track switching section 115 and enter the locking notch of the track to be switched, thereby locking the track switching section 115 with the original track of the track to be switched.

[0034] When it is necessary to switch to other tracks, the telescopic drive mechanism 130 controls the telescopic section 118 to fully retract into the hollow slot 111 of the track switching section 115, and then moves the track switching section 115 together with the robot mounted thereon to other tracks through the switching movement mechanism.

[0035] The locking device of this utility model is installed inside the hollow track switching section. The expansion and contraction of the telescopic section achieves dynamic locking and unlocking of the track. This utility model overcomes the drawbacks of external locking mechanisms, reduces the external volume of the track, avoids external environmental influences, reduces the risk of mechanical failure, and is more stable and reliable, improving the safety and operational efficiency of track system switching. Furthermore, it features a compact structure, stable operation, and simple maintenance.

[0036] The present invention does not limit the specific structural form of the locking device 116. In one example, the fixed section 117 includes a lock housing 119, and the telescopic drive mechanism 130 includes a push rod motor 120. The push rod motor 120 is arranged in the lock housing 119, and the push rod motor 120 is connected to the telescopic section 118 through a push rod 121.

[0037] A linear bearing pair 122 is provided on the push rod 121 inside the lock housing 119. The push rod 121 passes through the opening 123 on the end surface of the lock housing 119 and is connected to the telescopic section 118. An elastic retaining ring 124 is provided between the opening 123 and the linear bearing pair 122.

[0038] To facilitate the fixation of the fixing section 117 , a fixing hole 125 is provided on the lock housing 119 , and the fixing section 117 is fixed in the hollow notch 111 of the track switching section 115 via bolts and the fixing hole 125 .

[0039] Specifically, the bolts pass through the hollow slot 111 from the outside of the track switching section 115 and connect with the fixing hole 125 to fix the fixing section 117 .

[0040] The telescopic section 118 includes a locking rod 126 , the push rod 121 passes through the locking rod 126 , and the locking rod 126 and the push rod 121 are fixed by a nut 127 .

[0041] In order to install the nut 127, a nut groove 128 is opened on the side of the locking rod 126, and the end of the push rod 121 is exposed in the nut groove 128. The nut 127 is connected to the end of the push rod 121 in the nut groove 128 to fix the locking rod 126 and the push rod 121.

[0042] The free end of the locking rod 126 is provided with an insertion guide portion 129 to facilitate the locking rod to be inserted into the locking notch of the track to be switched.

[0043] The aforementioned hollow slots 111 may be provided along the length direction of the track switching section 115 , that is, the hollow slots 111 at both ends of the track switching section 115 are connected together.

[0044] Alternatively, the hollow slots 111 corresponding to the two end surfaces of the track switching section 115 are intermittently arranged, and the length of the hollow slots 111 is greater than the length of the fixing section 117 to accommodate the fixing section 117.

[0045] The present invention does not limit the specific structure of the track switching section 115. In one example, the track switching section 115 includes a vertically arranged wall panel 101 and a tread panel 102 located at the bottom end of the wall panel 101 and arranged horizontally. The wall panel 101 and the tread panel 102 are overall inverted T-shaped, and the top surface of the tread panel 102 forms symmetrical walking treads 103 on both sides of the wall panel 101.

[0046] The hollow slot 111 may be provided on the wall panel 101 , or on the tread panel 102 , or on both.

[0047] In the present invention, the cross-sectional shape of the fixed section 117 of the locking device 116 is adapted to the cross-sectional shape of the hollow slot 111 of the track switching section 115. The cross-sectional shape of the telescopic section 118 is adapted to the cross-sectional shape of the locking slot of the track to be switched.

[0048] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A track switching locking structure, characterized in that: It includes a track switching section, wherein at least one hollow notch is formed on both end surfaces of the track switching section, the hollow notch is arranged along the length direction of the track switching section, and a locking device is arranged in the hollow notch; The locking device includes a fixed section and a telescopic section, wherein the fixed section is entirely located in the hollow slot of the track switching section, and the fixed section is fixed in the hollow slot of the track switching section. The telescopic section is connected to the fixed section via a telescopic drive mechanism, and the telescopic section is driven by the telescopic drive mechanism to extend out of the hollow slot of the track switching section or completely retract into the hollow slot of the track switching section along the length direction of the track switching section.

2. The track switching locking structure according to claim 1, characterized in that: The fixed section includes a lock housing, and the telescopic drive mechanism includes a push rod motor. The push rod motor is arranged in the lock housing and is connected to the telescopic section through a push rod.

3. The track switching locking structure according to claim 2, characterized in that: A linear bearing pair is provided on the push rod in the lock housing. The push rod passes through an opening on the end surface of the lock housing and is connected to the telescopic section. An elastic retaining ring is provided between the opening and the linear bearing pair.

4. The track switching locking structure according to claim 2, characterized in that: The lock housing is provided with a fixing hole, and the fixing section is fixed in the hollow notch of the track switching section through a bolt and the fixing hole.

5. The track switching locking structure according to claim 4, characterized in that: The bolt passes through the hollow slot from the outside of the track switching section and is connected to the fixing hole to fix the fixing section.

6. The track switching locking structure according to claim 2, characterized in that: The telescopic section includes a locking rod, the push rod passes through the locking rod, and the locking rod and the push rod are fixed by a nut.

7. The track switching locking structure according to claim 6, characterized in that: A nut groove is provided on the side of the locking rod, the end of the push rod is exposed in the nut groove, the nut is connected to the end of the push rod in the nut groove, and the locking rod and the push rod are fixed; the free end of the locking rod is provided with an insertion guide portion.

8. The track switching locking structure according to any one of claims 1 to 7, characterized in that: The hollow notch is arranged along the length direction of the track switching section; Alternatively, the hollow slots corresponding to the two end surfaces of the track switching segment are intermittently arranged, and the length of the hollow slots is greater than the length of the fixed segment.

9. The track switching locking structure according to claim 8, characterized in that: The track switching section includes a vertically arranged wall panel and a tread panel located at the bottom end of the wall panel and arranged horizontally, and the wall panel and the tread panel are formed into an inverted T shape as a whole.

10. The track switching locking structure according to claim 9, characterized in that: The hollow slot is provided on the wall panel and / or the tread panel, and the cross-sectional shape of the fixing section is adapted to the cross-sectional shape of the hollow slot.

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