Self-locking type sealing detector protective cover

Abstract

The utility model relates to the technical field of protective covers, in particular to a self-locking type protective cover for a sealing detector, which comprises a protective cover body and a mounting rack fixedly connected with the sealing detector, one side of the protective cover body is hinged on the mounting rack, and the other side of the protective cover body is hinged on the mounting rack. A locking mechanism used for locking the protective cover body and the installation frame is arranged between the other side of the protective cover body and the installation frame, and an anti-disengaging mechanism used for preventing the installation frame and the protective cover from disengaging is arranged between the other side of the protective cover body and the installation frame. Through mutual cooperation of the anti-falling mechanism and the locking mechanism, under the state that the locking mechanism is not locked well, the anti-falling mechanism can enable the mounting frame and the protective cover body not to be separated, the protective cover body covers a rod piece of the close-fitting inspection device all the time, and it is guaranteed that the close-fitting inspection device operates stably and reliably.

Description

Technical Field

[0001] The utility model relates to the technical field of protective covers, in particular to a self-locking protective cover for a close detector. Background Art

[0002] Close contact detectors are primarily used to check the close contact and separation between turnout traction points. With the development of railways, especially high-speed railways, transportation safety requirements are becoming increasingly stringent. Close contact detectors, as redundant devices for turnout indication, are connected in series with the turnout indication system to significantly improve the reliability of monitoring for switch jam accidents. When a switch jam accident occurs, the switch machine's external locking mechanisms remain unlocked, causing the turnout's repelling point rail to shift. The switch machine, the close contact detector, or both of them will disconnect the indication circuit, thereby detecting the occurrence of the switch jam accident. Furthermore, the close contact detector can enhance monitoring of turnout faults. For example, if the gap between the point rail and the stock rail increases due to foreign objects or deformation of the point rail at a distance from the switch machine's traction point, compromising driving safety, the close contact detector installed at that location can promptly disconnect the indication circuit and sound an alarm.

[0003] Therefore, the close fit checker plays a vital role in the stable operation of the railway operation process. A protective cover is currently installed on the protruding rod at the front end of the close fit checker. The protective cover is attached to the close fit checker through a lock, and then the protective cover and the close fit checker are connected together through a connecting rope. It plays a safety role and prevents the lock between the close fit checker and the protective cover from not being locked, and the protective cover being blown away when the train passes. However, this structure cannot avoid the phenomenon of no lock column between the protective cover and the close fit checker, resulting in water accumulation on the rod of the close fit checker. When the rod of the close fit checker is extended or retracted, it is easy to bring water into the close fit checker, resulting in damage to the internal components of the close fit checker. Utility Model Content

[0004] The technical problem to be solved by the present invention is: in order to solve the problem that the existing structure of a close fitting inspector and a protective cover cannot avoid the phenomenon that there is no locking column between the protective cover and the close fitting inspector, resulting in water accumulation on the rod of the close fitting inspector, and it is easy to bring water into the interior of the close fitting inspector when the rod of the close fitting inspector is extended or retracted, resulting in damage to the internal components of the close fitting inspector, a self-locking close fitting inspector protective cover is now provided.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a self-locking close detector protective cover, comprising a protective cover body and a mounting frame for fixedly connecting to the close detector, one side of the protective cover body is hinged on the mounting frame, a locking mechanism for locking the protective cover body and the mounting frame is provided between the other side of the protective cover body and the mounting frame, and an anti-separation mechanism for preventing the mounting frame and the protective cover body from being disengaged is provided between the other side of the protective cover body and the mounting frame;

[0006] The anti-slip mechanism includes a pin shaft and a first cotter pin. The pin shaft is fixedly mounted on the mounting frame. The protective cover body is provided with a pin hole that matches the pin shaft. The pin shaft is provided with a hole that matches the first cotter pin. When one end of the pin shaft passes through the pin hole, one end of the first cotter pin passes through the hole and opens. The pin hole is located between the first cotter pin and the mounting frame. Compared to the existing technology, this solution uses the anti-slip mechanism and the locking mechanism to cooperate with each other. When the locking mechanism fails to lock properly, the anti-slip mechanism can prevent the mounting frame and the protective cover body from disengaging. The protective cover body always covers the rod of the close fit tester, ensuring stable and reliable operation of the close fit tester.

[0007] In some preferred embodiments, the protective cover body is provided with two pin holes, and the locking mechanism is located between the two pin holes.

[0008] In some preferred embodiments, the first cotter pin is an R-shaped cotter pin

[0009] In order to achieve mutual hinged connection between the mounting frame and the protective cover body, preferably in some embodiments, the mounting frame and the protective cover body are hinged to each other via a hinge structure.

[0010] In order to realize the hinge structure, some preferred embodiments are that the hinge structure includes a bolt and a nut, a bushing is provided on the protective cover body, a groove (11) matching the bushing is provided on the mounting frame, a hinge hole is provided on the groove, and one end of the bolt passes through the hinge hole and the bushing and is threadedly connected to the nut.

[0011] Because trains passing through the close-fit inspection device generate vibration, bolts and nuts can easily loosen in this vibrating environment, affecting the stability of the protective cover body and the mounting bracket. In some preferred embodiments, the bolts are provided with anti-loosening washers located between the hinge hole and the nut. The anti-loosening washers prevent the bolts and nuts from quickly loosening due to vibration, effectively extending the tight connection between the bolts and the nut.

[0012] In some preferred embodiments, a second cotter pin is provided at one end of the bolt, and the nut is located between the second cotter pin and the hinge hole of the bushing.

[0013] In order to ensure that the hinge connection between the protective cover body and the mounting bracket is stable and reliable, preferably in some embodiments, there are two groups of hinge structures between the mounting bracket and the protective cover body.

[0014] In some preferred embodiments, the protective cover body is made of rubber.

[0015] In some preferred embodiments, the mounting frame is made of Q235.

[0016] The beneficial effects of the present invention are as follows: when the self-locking protective cover of the close-fitting detector of the present invention is in use, the anti-slip mechanism and the locking mechanism cooperate with each other to achieve that when the locking mechanism fails to lock, the anti-slip mechanism can prevent the mounting frame and the protective cover body from detaching, and the protective cover body always covers the rod of the close-fitting detector, thereby ensuring that the close-fitting detector operates stably and reliably, and avoiding the problem that the existing close-fitting detector and protective cover structure cannot avoid the lack of a locking column between the protective cover and the close-fitting detector, resulting in water accumulation on the rod of the close-fitting detector, and it is easy to bring water into the interior of the close-fitting detector when the rod of the close-fitting detector is extended or retracted, resulting in damage to the internal components of the close-fitting detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0019] Figure 2 yes Figure 1 A partial enlarged view of middle A;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0021] Figure 4 yes Figure 3 A partial enlarged view of middle B;

[0022] Figure 5 It is the main view of the utility model;

[0023] Figure 6 It is a left view of the utility model;

[0024] Figure 7 It is a right side view of the utility model;

[0025] Figure 8 It is a top view of the utility model;

[0026] Figure 9 It is a bottom view of the present utility model.

[0027] In the figure: 1. Protective cover body, 2. Mounting frame, 3. Locking mechanism, 4. Anti-slip mechanism, 5. Pin shaft, 6. First cotter pin, 7. Pin hole, 8. Hole, 9. Bolt, 10. Nut, 11. Groove, 13. Anti-loosening washer, 14. Second cotter pin, 15. Bushing. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below with reference to the following embodiments:

[0029] The present invention is not limited to the following specific embodiments. Based on the disclosure of this invention, a person skilled in the art can adopt a variety of other specific embodiments to implement the present invention. Any simple changes or modifications made to the design structure and concept of this invention fall within the scope of protection of this invention. It should be noted that the embodiments and features of the embodiments of this invention can be combined with each other unless there is a conflict.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0031] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0032] like Figure 1-9 As shown, a self-locking close detector protective cover includes a protective cover body 1 and a mounting frame 2. The mounting frame 2 is used to be fixedly connected to the close detector. One side of the protective cover body 1 is hinged on the mounting frame 2. A locking mechanism 3 is provided between the other side of the protective cover body 1 and the mounting frame 2. The locking mechanism 3 is used to lock the protective cover body 1 and the mounting frame 2. An anti-slip mechanism 4 is provided between the other side of the protective cover body 1 and the mounting frame 2. The anti-slip mechanism 4 is used to prevent the mounting frame 2 and the protective cover body 1 from detaching.

[0033] The anti-slip mechanism 4 includes a pin shaft 5 and a first cotter pin 6. The pin shaft 5 is fixedly mounted on the mounting frame 2. A pin hole 7 matching the pin shaft 5 is provided on the protective cover body 1. A hole 8 matching the first cotter pin 6 is provided on the pin shaft 5. When one end of the pin shaft 5 passes through the pin hole 7, one end of the first cotter pin 6 passes through the hole 8 and opens. The pin hole 7 is located between the first cotter pin 6 and the mounting frame 2. Two pin holes 7 are provided on the protective cover body 1. The locking mechanism 3 is located between the two pin holes 7. The first cotter pin 6 is an R-shaped cotter pin.

[0034] The mounting frame 2 and the shield body 1 are hinged to each other via a hinge structure. There are two sets of hinge structures between the mounting frame 2 and the shield body 1. The hinge structure includes a bolt 9 and a nut 10. The shield body 1 is provided with a bushing 15. The mounting frame 2 is provided with a groove 11 that matches the bushing 15. The groove 11 is provided with a hinge hole. One end of the bolt 9 passes through the hinge hole and the bushing 15 and is threadedly connected to the nut 10. A locking washer 13 is sleeved on the bolt 9. The locking washer 13 is located between the hinge hole and the nut 10. The nut 10 is located between the locking washer 13 and a second cotter pin 14. The second cotter pin 14 is an R-shaped cotter pin. The second cotter pin 14 is provided at one end of the bolt 9. The nut 10 is located between the second cotter pin 14 and the hinge hole of the bushing 15.

[0035] The material of the protective cover body 1 is rubber, and the material of the mounting frame 2 is Q235. The mounting frame 2 is provided with a first mounting hole through a screw, and a second mounting hole is provided on the shell of the close-fitting inspector. The first mounting hole and the second mounting hole are relative to each other, and the screw passes through the first mounting hole and is threadedly connected to the second mounting hole to complete the fixing of the mounting frame 2 on the shell of the close-fitting inspector.

[0036] The locking mechanism 3 includes a locking pin provided on the mounting frame 2 and a lock body that cooperates with the locking pin. The lock body is provided on the protective cover body 1. Here is one embodiment of the locking mechanism 3, which is similar to the patent application number CN202020532685.5, entitled "Convenient Anti-theft Lock," filed on April 13, 2020. That is, the locking mechanism 3 adopts the structure of a portable anti-theft lock, and the lock body is unlocked by pressing.

[0037] When the above-mentioned self-locking close detector protective cover is maintained on the close detector, first remove the first cotter pin 6 from the pin shaft 5, then press the locking mechanism to unlock, flip the protective cover body 1 on the mounting frame 2, and perform maintenance on the rod on the close detector. After the maintenance is completed, flip the protective cover body 1 and set the pin hole 7 on the pin shaft 5, then pass one end of the first cotter pin 6 through the hole 8 and open it, and then lock the protective cover body 1 and the mounting frame 2 through the locking mechanism;

[0038] When the locking mechanism 3 is in the unlocked state, the anti-detachment mechanism 4 can maintain the status quo between the protective cover body 1 and the mounting frame 2, and the protective cover body 1 and the mounting frame 2 will not separate, which can prevent the protective cover body 1 from opening after maintenance by the signal worker. In serious cases, it will cause water accumulation on the rod of the close-fitting inspector, and the components will fail due to water ingress during the operation of the close-fitting inspector.

[0039] The above-described preferred embodiments of the present invention are intended as a guide. Based on the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A self-locking close detector protective cover, comprising a protective cover body (1) and a mounting frame (2) for fixedly connecting to a close detector, wherein one side of the protective cover body (1) is hinged to the mounting frame (2), and a locking mechanism (3) for locking the protective cover body (1) and the mounting frame (2) is provided between the other side of the protective cover body (1) and the mounting frame (2), characterized in that: An anti-detachment mechanism (4) for preventing the mounting frame (2) and the protective cover from detaching is provided between the other side of the protective cover body (1) and the mounting frame (2); The anti-slip mechanism (4) comprises a pin shaft (5) and a first cotter pin (6); the pin shaft (5) is fixedly mounted on the mounting frame (2); a pin hole (7) matching the pin shaft (5) is provided on the protective cover body (1); a hole (8) matching the first cotter pin (6) is provided on the pin shaft (5); when one end of the pin shaft (5) passes through the pin hole (7), one end of the first cotter pin (6) passes through the hole (8) and opens; the pin hole (7) is located between the first cotter pin (6) and the mounting frame (2).

2. The self-locking detector protective cover according to claim 1 is characterized in that: Two pin holes (7) are provided on the protective cover body (1), and the locking mechanism (3) is located between the two pin holes (7).

3. The self-locking close detector protective cover according to claim 1 or 2, characterized in that: The first cotter pin (6) is an R-shaped cotter pin.

4. The self-locking detector protective cover according to claim 1 is characterized in that: The mounting frame (2) and the protective cover body (1) are hinged to each other via a hinge structure.

5. The self-locking close detector protective cover according to claim 4 is characterized in that: The hinge structure comprises a bolt (9) and a nut (10); a bushing (15) is provided on the protective cover body (1); a groove (11) matching the bushing (15) is provided on the mounting frame (2); a hinge hole is provided on the groove (11); one end of the bolt (9) passes through the hinge hole and the bushing (15) and is threadedly connected to the nut (10).

6. The self-locking close detector protective cover according to claim 5, characterized in that: An anti-loosening washer (13) is sleeved on the bolt (9), and the anti-loosening washer (13) is located between the hinge hole and the nut (10).

7. The self-locking close detector protective cover according to claim 6, characterized in that: One end of the bolt (9) is provided with a second cotter pin (14), and the nut (10) is located between the second cotter pin (14) and the hinge hole of the bushing (15).

8. The self-locking close detector protective cover according to claim 4, 5, 6 or 7, characterized in that: There are two groups of hinge structures between the mounting frame (2) and the protective cover body (1).

9. The self-locking protective cover for a close detector according to claim 1, characterized in that: The material of the protective cover body (1) is rubber.

10. The self-locking protective cover for a close detector according to claim 1, characterized in that: The material of the mounting frame (2) is Q235.

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