Turnout latch hook protective cover
By designing a protective cover for the turnout locking hook and equipping it with an automatic lubrication device, the problem of oil leakage in the locking hook during rain and snow has been solved, achieving efficient lubrication and flexible operation of the locking hook, and reducing maintenance needs and costs.
Patent Information
- Application Number
- CN202520530438.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-03-25
AI Technical Summary
Existing turnout locking hooks are prone to oil spillage in rainy or snowy weather, leading to difficulties in unlocking, obstructed switching, and rusting, increasing maintenance frequency and costs.
A turnout lock hook protective cover was designed, equipped with an automatic lubrication device to prevent rain and snow from affecting it, and to keep the lock hook lubricated through a built-in lubrication system to ensure flexible operation.
It effectively prevents the effects of rain and snow, reduces unlocking difficulties and rust, lowers maintenance frequency and costs, ensures flexible turnout operation, and reduces the occurrence of malfunctions.
Smart Images

Figure CN223812582U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a switch lock hook technical field, especially a switch lock hook protection cover. BACKGROUND
[0002] Railway switch is the indispensable equipment for train to transfer from one track to another track, and is the important component in railway transportation, which is mainly composed of switch machine, connecting part, frog and guard rail three units, and the switch machine includes point rail, basic rail and switch mechanism, when train wants to transfer from A track to B track, the position of point rail is moved by switch mechanism, so that point rail 1 is close to basic rail A, and point rail 2 is separated from basic rail B, so that train can transfer from A track to B track, and when long time track transfer is needed, point rail and basic rail in switch machine are fixed and combined together by switch hook lock device by manual method, so as to prevent train from derailing caused by artificial or misoperation switch, but the existing switch lock hook is generally exposed, when rain and snow weather is encountered, rain and snow can disperse oil, so that oil is lack and causes unlocking difficulty and conversion obstruction. SUMMARY
[0003] The utility model discloses a kind of switch lock hook protection cover, and the purpose is to at least solve one of the technical problems existing in prior art, prevent rain and snow from dispersing oil by the rain and snow protection cover for switch lock hook main body, so that oil is lack and causes unlocking difficulty, conversion obstruction, lock hook rust, reduce maintenance frequency, reduce the number of personnel down station, reduce maintenance cost;Automatic lubricating device in protection cover can release oil, keep the oil of lock hook, ensure that switch is flexible, reduce failure.
[0004] The utility model discloses still provide with above-mentioned one kind switch lock hook protection cover, it include: fixed block, the outer surface of the fixed block is installed with switch lock hook main body, the outer surface of the fixed block is connected with connecting piece by bolt fixedly, the outer surface of the connecting piece is rotatably connected with protection cover, the inner wall of the protection cover is provided with automatic lubricating device, the position of the automatic lubricating device is located above switch lock hook main body.
[0005] According to the utility model provides a kind of switch lock hook protection cover, the connecting piece is provided with two, and respectively located at the both sides of protection cover, two connecting pieces can provide better balance and support.
[0006] According to the utility model provides a kind of switch lock hook protection cover, the position of the switch lock hook main body is located at the inboard of protection cover, can effectively reduce the influence of external factors to switch lock hook main body, to prolong the service life of lock hook.
[0007] Compared with the prior art, the turnout locking hook protective cover prevents rain and snow from the turnout locking hook body through the protective cover, prevents rain and snow from washing away oil, thereby causing unlocking difficulty, conversion obstruction, locking hook rust, reducing the number of maintenance, reducing the number of personnel down the station, and reducing the maintenance cost; the automatic lubricating device in the protective cover releases oil, keeps the locking hook oiled, ensures the flexible turnout action, and reduces the occurrence of faults. BRIEF DESCRIPTION OF DRAWINGS
[0008] The utility model is further explained below in combination with the drawings and embodiments.
[0009] Figure 1 It is the whole structure diagram of the utility model turnout locking hook protective cover.
[0010] Figure 2 It is the protective cover connection schematic view of the utility model turnout locking hook protective cover.
[0011] LEGEND:
[0012] 1, fixed block, 2, turnout locking hook body, 3, connecting piece, 4, protective cover, 5, automatic lubricating device. DETAILED DESCRIPTION
[0013] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, and the drawings are used to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.
[0014] REFERENCE Figure 1 and Figure 2 The utility model example turnout locking hook protective cover, it includes: fixed block 1, the outer surface of fixed block 1 is installed with turnout locking hook body 2, the outer surface of fixed block 1 is connected with connecting piece 3 through bolt fixing, the outer surface of connecting piece 3 is rotatably connected with protective cover 4, the inner wall of protective cover 4 is provided with automatic lubricating device 5, the position of automatic lubricating device 5 is located above turnout locking hook body 2, connecting piece 3 is provided with two, and is located at the both sides of protective cover 4 respectively, the position of turnout locking hook body 2 is located at the inboard of protective cover 4;
[0015] Specifically, the turnout locking hook body 2 is composed of a locking hook body and a locking mechanism, and is mainly used for preventing accidental switching of the turnout, ensuring the safety of the train passing through the turnout, and the turnout locking hook body 2 is installed inside the protective cover 4 to prevent rain and snow from dispersing oil, thereby reducing the number of maintenance and personnel station, reducing the maintenance cost; the automatic lubricating device 5 is above the turnout locking hook body 2, and the automatic lubricating device 5 in the protective cover 4 releases oil to keep the locking hook lubricated, ensures the flexible action of the turnout, and reduces the occurrence of faults; the automatic lubricating device 5 is composed of a lubricating pump, a distributor (which distributes lubricant to each lubrication point), an optical sensor (which detects the surface oil film by using the reflection or transmission characteristics of light), an oil tank, a pipeline and a joint, and mainly functions to ensure that the turnout locking hook body 2 is always properly lubricated during operation.
[0016] Working principle: in use, the protective cover 4 prevents rain and snow from dispersing oil, thereby reducing the number of maintenance and personnel station, reducing the maintenance cost; the automatic lubricating device 5 in the protective cover 4 releases oil to keep the locking hook lubricated, ensures the flexible action of the turnout, and reduces the occurrence of faults.
[0017] The above describes the embodiments of the utility model in detail in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by those skilled in the art in the technical field without departing from the purpose of the utility model.
Claims
1. A switch lock guard shield, characterized in that, The utility model relates to a kind of automatic lubricating device for switch lock hook, including: Fixed block (1), the outer surface of the fixed block (1) is installed with switch lock hook body (2), the outer surface of the fixed block (1) is fixedly connected with connecting piece (3) by bolt, the outer surface of the connecting piece (3) is rotatably connected with protective cover (4), the inner wall of the protective cover (4) is provided with automatic lubricating device (5), the position of the automatic lubricating device (5) is above switch lock hook body (2).
2. A switch lock guard as claimed in claim 1, characterised in that, The connecting piece (3) is provided with two, and is located at the two sides of protective cover (4) respectively.
3. A switch lock guard as defined in claim 1 wherein, The position of the switch lock hook body (2) is inside protective cover (4).