A retractable protective cover

Abstract

This application discloses a retractable protective cover, comprising: two fixed seats, each with a first through hole; a first cover body, with two side walls slidably connected to the two fixed seats; at least one side wall of the first cover body having a plurality of second through holes; a second cover body, with two side walls slidably connected to the two fixed seats; the second cover body can nest into the first cover body when sliding on the fixed seats; at least one side wall of the second cover body having a third through hole matching the second through holes; a fixing pin for sequentially passing through the second and third through holes; and an insulating component disposed at the junction of the first cover body and the switch machine, and at the junction of the second cover body and the rail. In this design, both the first and second covers can slide on the fixed seats. When performing maintenance or upkeep of the switch machine's operating rod or hook, only the first or second cover body needs to be slid, simplifying operation and improving work efficiency.

Description

Technical Field

[0001] This application relates to the field of railway protection technology, and in particular to a retractable protective cover. Background Technology

[0002] The switch machine is the main piece of equipment in railway turnout switching systems. Turnout switching is achieved by extending and retracting the switch machine's operating rod. Currently, the operating rod and hook of the switch machine are protected by fixed protective covers. However, when performing maintenance such as gap inspection, hook lubrication checks, or oiling, the protective covers need to be removed, which is very troublesome and reduces work efficiency. On the other hand, if a movable protective cover is used, it is easy for it to be blown off in strong winds, which can cause damage. Utility Model Content

[0003] An embodiment of this application provides a retractable protective cover.

[0004] To achieve the above objectives, embodiments of this application provide a retractable protective cover, comprising:

[0005] Two fixed seats, each with a first through hole, are connected to the switch trays on both sides of the switch machine's operating rod through the first through hole;

[0006] The first cover has two side walls that are slidably connected to two fixed seats; at least one side wall of the first cover has several second through holes.

[0007] The second cover has two side walls that are slidably connected to two fixed seats respectively; the second cover can be nested into the first cover when it slides on the fixed seats; at least one side wall of the second cover is provided with a third through hole that matches the second through hole;

[0008] A fixing pin is used to pass through the second through hole and the third through hole in sequence to fix the first cover and the second cover.

[0009] Insulating components are installed at the junction of the first cover and the switch machine, and at the junction of the second cover and the rail.

[0010] In one embodiment, both sidewalls of the first cover are connected to corresponding fixed seats via a first slide rail;

[0011] Both side walls of the second enclosure are connected to the corresponding fixed seats via the second slide rail.

[0012] In one embodiment, the first slide rail includes a first inner rail and a first outer rail. The first inner rail is fixed to the outside of the side wall of the first cover, and the first outer rail is fixed to the fixing seat. The first inner rail and the first outer rail are matched with each other.

[0013] In one embodiment, the second slide rail includes a second inner rail and a second outer rail. The second inner rail is fixed inside the side wall of the second cover, and the second outer rail is fixed on a fixed seat. The second inner rail and the second outer rail are matched with each other.

[0014] In one embodiment, a groove is provided on the side wall of the second cover near the end of the rail, the groove matching the bottom end of the rail, and the shape of the end face of the side wall of the second cover matching the shape of the rail.

[0015] In one embodiment, the top wall of the second cover has a notch to match the locking frame fixed on the rail, and protrusions are provided on both sides of the notch to match the rail.

[0016] In one embodiment, a first handle is provided on the first cover.

[0017] In one embodiment, a second handle is provided on the second cover.

[0018] In one embodiment, the first through hole is a racetrack-shaped hole.

[0019] In one embodiment, a fixing post is fixed on the fixing seat on the side corresponding to the second through hole, and the fixing post is connected to the fixing pin by a pin chain.

[0020] This application has the following advantages over the prior art:

[0021] In this design, both the first and second covers can slide on the fixed base. When performing maintenance or repairs on the switch machine's operating rods or hooks, only the first or second cover needs to be slid, eliminating the need to open the entire protective cover. This simplifies operation and improves work efficiency. Furthermore, the fixed base is securely connected to the switch machine tray, preventing it from being blown away by the wind and reducing potential hazards. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the retractable protective cover according to an embodiment of this application;

[0024] Figure 2 This is a front view of the retractable protective cover according to an embodiment of this application;

[0025] Figure 3 This is a top view of the retractable protective cover according to an embodiment of this application;

[0026] Figure 4 This is a left view of the retractable protective cover according to an embodiment of this application;

[0027] Figure 5 This is an application scenario diagram of the retractable protective cover according to an embodiment of this application. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can refer to fixed connection, detachable connection, or integral connection; for those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0031] 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0032] like Figures 1-4 A schematic diagram of a retractable protective cover provided in an embodiment of this application is shown, as follows. Figure 5 The diagram illustrates an application scenario for the retractable protective cover.

[0033] Reference Figure 1-4 An embodiment of this application provides a retractable protective cover, comprising:

[0034] Two fixed seats 1, each with a first through hole 11, are connected to the switch trays 81 on both sides of the action rod of the switch machine 8 through the first through hole 11.

[0035] The first cover 2 has two side walls that are slidably connected to two fixed seats 1 respectively; at least one side wall of the first cover 2 is provided with a plurality of second through holes 21;

[0036] The second cover 3 has two side walls that are slidably connected to two fixed seats 1 respectively; when the second cover 3 slides on the fixed seats 1, it can be nested into the first cover 2; at least one side wall of the second cover 3 is provided with a third through hole 31 that matches the second through hole 21.

[0037] Fixing pin 4 is used to pass through the second through hole 21 and the third through hole 31 in sequence to fix the first cover 2 and the second cover 3.

[0038] Insulating components are installed at the junction of the first cover 2 and the switch machine 8, and at the junction of the second cover 3 and the rail 9.

[0039] Specifically, the mounting base 1 and the switch tray 81 are connected via the first through hole 11 and screws. It is understood that the screws can be the original screws of the switch tray 81 to ensure a secure installation of the retractable protective cover and prevent it from being blown away by the wind. At least two first through holes 11 can be provided on each mounting base 1 to increase the stability of the retractable protective cover. The positions of these at least two first through holes 11 correspond to the positions of the original screw holes on the switch tray 81. It is also understood that the first through hole 11 can be designed as a racetrack-shaped hole, which facilitates fine-tuning of the mounting position of the mounting base 1 and improves the error tolerance of the first through hole 11.

[0040] Both the first enclosure 2 and the second enclosure 3 consist of two side walls and a top wall.

[0041] In use, the first cover 2 and the second cover 3 are used to shield the operating rod of the switch machine 8 and the hook on the locking frame 10 of the switch machine 8, so as to protect the operating rod of the switch machine 8 and the hook on the locking frame 10 of the switch machine 8 from dust. In this application, the example of the first cover 2 shielding the operating rod of the switch machine 8 and the second cover 3 shielding the hook on the locking frame 10 of the switch machine 8 will be used for explanation.

[0042] The fixing seat 1 is used to fix the first cover 2 and the second cover 3, and the first cover 2 and the second cover 3 can slide on the fixing seat 1 so that when the operating rod and hook of the switch machine 8 are maintained and repaired, the first cover 2 or the second cover 3 can slide so that the second cover 3 can be nested into the first cover 2, so that the operating rod and hook of the switch machine 8 can be maintained and repaired.

[0043] When not undergoing maintenance, the first cover 2 and the second cover 3 are fixed by passing the fixing pin 4 through the second through hole 21 and the third through hole 31. It is understandable that the second through hole 21 and the third through hole 31 could be opened on one side wall of the first cover 2 and the corresponding side wall of the second cover 3, but opening them on both side walls of the first cover 2 and the second cover 3 makes the fixation of the first cover 2 and the second cover 3 more secure. When performing maintenance on the operating rod and hook of the switch machine 8, the fixing pin 4 can be removed, allowing the first cover 2 or the second cover 3 to slide.

[0044] During maintenance and repair of the operating rod and hook of the switch machine 8, in order to prevent the fixing pin 4 from being lost, in one embodiment, a fixing post 7 is fixed on the fixing seat 1 on the side corresponding to the second through hole 21. The fixing post 7 is connected to the fixing pin 4 by a pin chain. It can be understood that if the second through hole 21 is provided on both side walls of the first cover 2, then the fixing post 7 is fixed on both fixing seats 1.

[0045] Insulating components are installed at the junction of the first cover 2 and the switch machine 8, and at the junction of the second cover 3 and the rail 9, to prevent the retractable protective cover from contacting the rail 9 and the switch machine 8, thus achieving insulation.

[0046] In this embodiment, both the first and second covers can slide on the fixed base. When performing maintenance or repairs on the switch machine's operating rods or hooks, only the first or second cover needs to be slid, eliminating the need to open the entire protective cover. This simplifies operation and improves work efficiency. Furthermore, the fixed base is securely connected to the switch machine tray, preventing it from being blown away by the wind and reducing potential hazards.

[0047] In one embodiment, the two side walls of the first cover 2 are connected to the corresponding fixed base 1 via the first slide rail 5; the two side walls of the second cover 3 are connected to the corresponding fixed base 1 via the second slide rail 6.

[0048] The first slide rail 5 includes a first inner rail 51 and a first outer rail 52. The first inner rail 51 is fixed to the outside of the side wall of the first cover 2, and the first outer rail 52 is fixed to the fixed seat 1. The first inner rail 51 and the first outer rail 52 are matched with each other.

[0049] The second slide rail 6 includes a second inner rail and a second outer rail. The second inner rail is fixed inside the side wall of the second cover 3, and the second outer rail is fixed on the fixing seat 1. The second inner rail and the second outer rail match each other.

[0050] Specifically, the first slide rail 5 and the second slide rail 6 can be a two-section type, that is, the outer rail and the inner rail are combined, or a three-section ball bearing type, that is, the inner rail, the middle rail and the ball bearing and the outer rail are combined, or other methods can be used according to actual needs.

[0051] In one embodiment, in order to improve the shielding effect of the switch machine 8's operating rod and hook, a groove 32 is provided on the side wall of the second cover 3 near the end of the rail 9. The groove 32 matches the bottom end of the rail 9, and the shape of the side wall end face of the second cover 3 matches the shape of the rail 9, so as to improve the sealing of the retractable protective cover and enhance the dustproof effect.

[0052] In one embodiment, to better match the original railway structure, a notch 33 is made in the top wall of the second cover 3 to match the locking frame 10 fixed on the rail 9. Both sides of the notch 33 are provided with protruding edges 34, which match the rail 9. The protruding edges 34 improve the sealing of the retractable protective cover and enhance its dustproof effect.

[0053] In one embodiment, a first handle 22 is provided on the first cover 2. A second handle 35 is provided on the second cover 3. The first handle 22 and the second handle 35 make it easier to slide the first cover 2 and the second cover 3 on the fixed base 1.

[0054] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A telescoping shield characterized by, include: Two fixed seats (1) are provided, and each of the two fixed seats (1) is provided with a first through hole (11). The fixed seats (1) are connected to the switch trays (81) on both sides of the action rod of the switch machine (8) through the first through hole (11). The first cover (2) has two side walls that are slidably connected to the two fixed seats (1); at least one side wall of the first cover (2) is provided with a plurality of second through holes (21). The second cover (3) has two side walls that are slidably connected to the two fixed seats (1) respectively; the second cover (3) can be nested into the first cover (2) when it slides on the fixed seat (1); at least one side wall of the second cover (3) is provided with a third through hole (31) that matches the second through hole (21). Fixing pin (4), which is used to pass through the second through hole (21) and the third through hole (31) in sequence to fix the first cover (2) and the second cover (3); An insulating component is provided at the junction of the first cover (2) and the switch machine (8), and at the junction of the second cover (3) and the rail (9).

2. The telescoping guard of claim 1, wherein, The two side walls of the first cover (2) are connected to the corresponding fixed seat (1) via the first slide rail (5); The two side walls of the second cover (3) are connected to the corresponding fixed seat (1) via the second slide rail (6).

3. The telescoping guard of claim 2, wherein, The first slide rail (5) includes a first inner rail (51) and a first outer rail (52). The first inner rail (51) is fixed to the outside of the side wall of the first cover (2), and the first outer rail (52) is fixed on the fixed seat (1). The first inner rail (51) and the first outer rail (52) are matched with each other.

4. The telescoping shield of claim 2, wherein, The second slide rail (6) includes a second inner rail and a second outer rail. The second inner rail is fixed inside the side wall of the second cover (3), and the second outer rail is fixed on the fixed seat (1). The second inner rail and the second outer rail match each other.

5. The telescoping shield of claim 1, wherein, The second cover (3) has a groove (32) on one end of its side wall near the rail (9). The groove (32) matches the bottom end of the rail (9). The shape of the end face of the side wall of the second cover (3) matches the shape of the rail (9).

6. The telescoping shield of claim 1, wherein, The top wall of the second cover (3) has a notch (33) to match the locking frame (10) fixed on the rail (9). Both sides of the notch (33) are provided with protruding edges (34), which match the rail (9).

7. The telescoping guard of any of claims 1-6, wherein, The first cover (2) is provided with a first handle (22).

8. The telescoping guard of any of claims 1-6, wherein, The second cover (3) is provided with a second handle (35).

9. The telescoping guard of any of claims 1-6, wherein, The first through hole (11) is a racetrack-shaped hole.

10. The telescoping guard of any of claims 1-6, wherein, A fixing post (7) is fixed on the fixing seat (1) on the side corresponding to the second through hole (21), and the fixing post (7) is connected to the fixing pin (4) by a pin chain.

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