Railway signal box

Abstract

Embodiments of the present application relate to the technical field of cabinet for electrical equipment, and particularly relate to a railway signal box. The railway signal box provided by the embodiments of the present application comprises a bottom shell and an upper cover, a first groove and a second groove are formed around the lower opening of the upper cover and are concave upward, and the second groove is located outside the first groove. The railway signal box further comprises a first sealing part and a second sealing part, the first sealing part is arranged in the first groove, the second sealing part is arranged in the second groove, a first abutting part and a second abutting part are formed around the upper opening of the bottom shell, and the second abutting part is located outside the first abutting part; when the upper cover and the bottom shell are buckled, the bottom of the first sealing part abuts against the first abutting part, and the bottom of the second sealing part abuts against the second abutting part. Since the railway signal box provided by the embodiments of the present application forms a double-layer sealing structure, the railway signal box has a good sealing effect.

Description

Technical Field

[0001] This application relates to the field of cabinet technology for electrical equipment, and more specifically to a railway signal box. Background Technology

[0002] Railway signaling products refer to equipment and materials used for railway communication and signaling. Some railway signaling products need to be used outdoors. In order to prevent railway signaling products from being damaged outdoors, they are usually placed in railway signal boxes for protection.

[0003] Railway signal boxes need to be airtight to prevent external particles or liquids (such as dust and water) from entering and causing malfunctions in the internal actuators or electrical connections. Currently, railway signal boxes suffer from poor sealing. Summary of the Invention

[0004] To address the aforementioned technical problems, this application proposes a railway signal box.

[0005] An embodiment of this application provides a railway signal box, including a bottom shell with an upper opening and a top cover with a lower opening. The top cover and the bottom shell are fastened together to jointly define a box body. A first groove and a second groove are formed around the lower opening of the top cover, with the second groove located outside the first groove. The railway signal box also includes a first sealing part and a second sealing part. The first sealing part is disposed in the first groove, and the second sealing part is disposed in the second groove. A first abutting part and a second abutting part are formed around the upper opening of the bottom shell, with the second abutting part located outside the first abutting part. When the top cover and the bottom shell are fastened together, the bottom of the first sealing part abuts against the first abutting part, and the bottom of the second sealing part abuts against the second abutting part.

[0006] The railway signal box of this application embodiment includes a sealing structure consisting of a first sealing part and a first abutting part in a first groove, and another sealing structure consisting of a second sealing part and a second abutting part in a second groove. This is equivalent to forming a double-layer sealing structure, so that outdoor particles and liquids are difficult to pass through this double-layer sealing structure and enter the railway signal box, giving the railway signal box a good sealing effect. Attached Figure Description

[0007] Figure 1 This is a cross-sectional schematic diagram of a railway signal box according to an embodiment of this application;

[0008] Figure 2 This is a schematic diagram of the structure of the first sealing part according to an embodiment of this application;

[0009] Figure 3 for Figure 1 A magnified view of a portion of region A in the middle;

[0010] Figure 4 This is a schematic diagram of the structure of the second sealing part according to an embodiment of this application;

[0011] Figure 5 This is a schematic diagram of the structure of a railway signal box according to an embodiment of this application;

[0012] Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure of the railway signal box shown;

[0013] Figure 7 This is a schematic diagram of the bottom shell structure according to an embodiment of this application;

[0014] Figure 8 This is a cross-sectional schematic diagram showing the locking structure located inside the lock housing according to an embodiment of this application;

[0015] Figure 9 for Figure 8 A magnified view of a portion of region B in the middle;

[0016] Figure 10 This is a partial exploded view of the locking structure according to an embodiment of this application;

[0017] Figure 11 This is a schematic diagram of the locking structure located inside the lock housing according to an embodiment of this application;

[0018] Figure 12 for Figure 11 A partially enlarged schematic diagram of the structure shown;

[0019] Figure 13 This is a schematic diagram of the hinged connection between the bottom shell and the top cover according to an embodiment of this application.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Railway signal box; 10. Bottom shell; 11. First abutment part; 12. Second abutment part; 13. Limiting part; 131. Limiting post; 20. Top cover; 21. First groove; 22. Second groove; 23. Partition wall; 24. Lock shell; 241. First vertical rib; 242. Second vertical rib; 243. Limiting groove; 244. Mounting groove; 245. Horizontal short rib; 30. First sealing part; 31. First body sealing part; 32. First attached sealing part; 33. First connecting part; 40. Second sealing part; 41. Second body sealing part; 42. Second attached sealing part; 43. Second connecting part 60. Locking structure; 61. Locking element; 611. Insertion hole; 612. Through groove; 613. Moving element; 614. Horizontal channel; 6141. Second inclined surface; 615. Locking element body; 616. Second conical surface; 62. Locking mating element; 621. First conical surface; 63. Driving element; 631. Gear; 6310. Gear torsion part; 632. Rack; 6321. First inclined surface; 6323. Rack guide part; 633. First reset element; 64. Second reset element; 71. Hinge part; 711. First stop surface; 72. Rotating shaft; 73. Hinge mating part; 731. Second stop surface.

[0022] It should also be noted that the accompanying drawings are for illustrative purposes only and not of the present application itself. The drawings do not show every aspect of the described embodiments and do not limit the scope of the present application. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only one embodiment of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the described embodiments of this application without creative effort are within the scope of protection of this application.

[0024] It should be noted that, unless otherwise defined, the technical or scientific terms used in this application should have the ordinary meaning understood by a person with ordinary skill in the art to which this application pertains. Where the terms "first," "second," etc., are used throughout the text, they are used only to distinguish similar objects and should not be construed as indicating or implying their relative importance, order of precedence, or implicitly specifying the number of technical features indicated. It should be understood that the data in the descriptions of "first," "second," etc., can be interchanged where appropriate. Where "and / or" appears throughout the text, it means that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B.

[0025] A railway signal box generally includes a bottom shell with an upper opening and a top cover with a lower opening. The top cover and bottom shell are fastened together to form the box body. In related technologies, an annular groove is usually provided on the top cover of the railway signal box, and a sealing ring is placed in the annular groove. When the top cover and bottom shell are fastened together, the sealing ring is compressed to seal the railway signal box. The inventors of this application have discovered that when using the above-mentioned railway signal box, the sealing ring ages after a period of use, resulting in a deterioration in the sealing effect of the railway signal box.

[0026] To solve the above-mentioned technical problems, this application provides a railway signal box.

[0027] Figure 1 This is a schematic diagram of the structure of a railway signal box provided according to an embodiment of this application. Figure 1 As shown, the railway signal box 1 provided in the embodiment of this application includes a bottom shell 10 with an upper opening and an upper cover 20 with a lower opening. The upper cover 20 and the bottom shell 10 are fastened together to jointly define the box body.

[0028] The lower opening of the top cover 20 is surrounded by a first recessed groove 21 and a second recessed groove 22, with the second recessed groove 22 located outside the first recessed groove 21. The railway signal box 1 also includes a first sealing part 30 and a second sealing part 40. The first sealing part 30 is disposed in the first recessed groove 21, and the second sealing part 40 is disposed in the second recessed groove 22. The upper opening of the bottom shell 10 is surrounded by a first abutting part 11 and a second abutting part 12, with the second abutting part 12 located outside the first abutting part 11. When the top cover 20 and the bottom shell 10 are fastened together, the bottom of the first sealing part 30 abuts against the first abutting part 11, and the bottom of the second sealing part 40 abuts against the second abutting part 12.

[0029] The railway signal box 1 of this application embodiment includes a first sealing structure composed of a first sealing part 30 and a first abutting part 11 in the first groove 21, and another sealing structure composed of a second sealing part 40 and a second abutting part 12 in the second groove 22. This is equivalent to forming a double sealing structure, so that outdoor particles and liquids are difficult to pass through this double sealing structure and enter the railway signal box 1, giving the railway signal box 1 a good sealing effect.

[0030] like Figure 2 As shown, in some embodiments, the first sealing portion 30 includes: a first body sealing portion 31 and a first attached sealing portion 32 connected to the bottom of the first body sealing portion 31, wherein the first attached sealing portion 32 is a bent and extended strip. Figure 1 As shown, the first body sealing part 31 is tightly fitted with the first groove 21 so as to be stably embedded in the first groove 21.

[0031] In some embodiments, the first attached sealing portion 32 is configured to extend vertically under gravity and to be compressed when it abuts against the first abutting portion 11. In such embodiments, the structure of the first attached sealing portion 32 is similar to that of a spring. When the first sealing portion 30 ages or becomes dented, the first attached sealing portion 32 can still elastically maintain the abutting state between the first attached sealing portion 32 and the first abutting portion 11, thereby improving the sealing performance of the railway signal box 1.

[0032] In some embodiments, the first attachment seal 32 may have a Z-shaped structure.

[0033] like Figure 3 As shown, in some embodiments, gaps are formed between the two ends of the first attached sealing part 32 along the width direction and the two side walls of the first groove 21. That is, the two ends of the first attached sealing part 32 along the width direction do not contact the groove wall of the first groove 21, so that the first attached sealing part 32 can smoothly extend and retract in the first groove 21, and the first attached sealing part 32 can always maintain abutment with the first abutting part 11, thereby improving the sealing performance of the railway signal box 1.

[0034] like Figure 3 As shown, in some embodiments, the two ends of the first body sealing portion 31 protrude from the two ends of the first attached sealing portion 32 along the width direction, respectively, so as to tightly fit with the groove wall of the first groove 21, while making the first attached sealing portion 32 and the groove wall of the first groove 21 have a gap.

[0035] In some embodiments, the first sealing portion 30 further includes a first connecting portion 33 for connecting the bottom surface of the first main sealing portion 31 and the top surface of the first attached sealing portion 32, wherein one end of the first main sealing portion 31 near the second sealing portion 40 protrudes from the first connecting portion 33 in the width direction, one end of the first attached sealing portion 32 near the second sealing portion 40 is flush with the first connecting portion 33 in the width direction, and one end of the first attached sealing portion 32 away from the second sealing portion 40 protrudes from the first connecting portion 33 in the width direction. In such an embodiment, the sealing effect of the first sealing portion 30 is better.

[0036] like Figure 4 As shown, in some embodiments, the second sealing portion 40 includes: a second body sealing portion 41 and a second attachment sealing portion 42 connected to the bottom of the second body sealing portion 41, the second attachment sealing portion 42 being a bent and extended strip. Figure 1As shown, the second body sealing portion 41 is tightly fitted with the second groove 22 to stably embed itself into the second groove 22. The second attachment sealing portion 42 is configured to extend vertically under gravity and be compressed when it abuts against the second abutting portion 12. In this embodiment, the structure of the second body sealing portion 41 is similar to a spring. When the second sealing portion 40 ages or becomes dented, the second body sealing portion 41 can still elastically maintain the abutting state between the second body sealing portion 41 and the second abutting portion 12, thereby improving the sealing performance of the railway signal box 1.

[0037] In some embodiments, the second attachment seal 42 may have a Z-shaped structure.

[0038] like Figure 3 As shown, in some embodiments, the first groove 21 and the second groove 22 are separated by a partition wall 23, the lower end of which is higher than the lower end of the other groove wall of the first groove 21 and the lower end of the other groove wall of the second groove 22. The second sealing part 40 further includes a second connecting part 43 for connecting the bottom surface of the second body sealing part 41 and the top surface of the second attached sealing part 42. In this embodiment, the end of the second body sealing part 41 away from the first sealing part 30 protrudes from the second attached sealing part 42 in the width direction. In this embodiment, a gap is formed between the end of the second attached sealing part 42 away from the partition wall 23 in the width direction and the side wall of the second groove 22. That is, both ends of the second attached sealing part 42 in the width direction do not contact the groove wall of the second groove 22, allowing the second attached sealing part 42 to smoothly extend and retract in the second groove 22, ensuring that the second attached sealing part 42 can maintain contact with the second abutting part 12, thereby improving the sealing performance of the railway signal box 1.

[0039] like Figure 3 As shown, in some embodiments, the end of the second attached sealing portion 42 away from the first sealing portion 30 protrudes from the second connecting portion 43 in the width direction; the end of the second connecting portion 43 near the first sealing portion 30 protrudes from the second body sealing portion 41 in the width direction; the end of the second attached sealing portion 42 near the first sealing portion 30 is flush with the second connecting portion 43 in the width direction; the second connecting portion 43 abuts against the lower end face of the partition wall 23. Through the above arrangement, a double-layer sealing structure can be provided without significantly increasing the size of the upper cover 20 and the bottom shell 10, thereby ensuring the sealing effect of the railway signal box 1.

[0040] like Figure 3 As shown, in some embodiments, the bottom wall of the second groove 22 is vertically lower than the bottom wall of the first groove 21; for example... Figure 1As shown, the first abutment portion 11 can be formed by the peripheral wall of the upper opening of the bottom shell 10, and the second abutment portion 12 can be formed by a flange extending outward in a horizontal direction from the peripheral wall of the upper opening of the bottom shell 10. This arrangement makes it difficult for particles and liquids entering the first sealing structure (composed of the second sealing portion 40 and the second abutment portion 12 within the second groove 22) to rise to the second sealing structure (composed of the first sealing portion 30 and the first abutment portion 11 within the first groove 21), further improving the sealing effect inside the railway signal box 1.

[0041] like Figure 1 and Figure 5 As shown, in some embodiments, the upper cover 20 also forms a lock housing 24 located outside the second groove 22; the bottom cover 10 also forms a limiting portion 13 for abutting against the lower end of the lock housing 24. Figure 6 As shown, the railway signal box 1 also includes a locking structure 60, which is disposed inside the lock housing 24 and is used to lock or unlock the upper cover 20 and the bottom housing 10.

[0042] In this embodiment, since the side of the locking shell 24 closest to the bottom shell 10 abuts against the limiting part 13 each time the upper cover 20 and the bottom shell 10 are locked, the upper cover 20 and the bottom shell 10 are fixed in the vertical locking position, thereby keeping the compression of the first sealing part 30 and the second sealing part 40 constant. This allows the double-layer sealing structure in the railway signal box 1 (i.e., the first layer sealing structure composed of the second sealing part 40 and the second abutting part 12 in the second groove 22 and the second layer sealing structure composed of the first sealing part 30 and the first abutting part 11 in the first groove 21) to stably provide a good sealing effect.

[0043] like Figure 7 As shown, in some embodiments, the bottom shell 10 also has a limiting post 131 extending upward from the limiting portion 13; as Figure 6 , Figure 8 and Figure 9As shown, the locking structure 60 includes a locking member 61, a locking mating member 62, and a driving member 63. The locking member 61 has an insertion hole 611 for engaging with a limiting post 131, at least one radially distributed through groove 612 circumferentially distributed along the wall of the insertion hole 611, and at least one movable member 613 located in the corresponding through groove 612 and capable of radial movement. The locking member 61 is vertically movably disposed within the lock housing 24. The locking mating member 62 is disposed within the lock housing 24 and configured such that when the locking member 61 moves vertically downward, the movable member 613 moves radially inward to abut the limiting post 131; and when the locking member 61 moves vertically upward, the movable member 613 moves radially outward to release the limiting post 131. The driving member 63 is disposed within the lock housing 24 and is used to drive the locking member 61 to move vertically upward. In this embodiment, when the upper cover 20 is fastened downward to the bottom shell 10, the limiting post 131 is inserted into the insertion hole 611. Then, when the locking member 61 moves vertically downward, the locking engagement member 62 causes the movable member 613 to move radially inward to press against the limiting post 131, preventing the limiting post 131 from moving, thereby locking the upper cover 20 and the bottom shell 10. When the driving member 63 drives the locking member 61 to move vertically upward, the locking engagement member 62 causes the movable member 613 to move radially outward to release the limiting post 131, allowing the limiting post 131 to disengage from the insertion hole 611, thereby unlocking the upper cover 20 and the bottom shell 10.

[0044] In this embodiment, the limiting post 131 not only cooperates with the locking structure 60 to lock and unlock the upper cover 20 and the bottom shell 10, but also provides guidance for the movement of the locking member 61, making the movement trajectory of the locking member 61 stable. During the process of unlocking and locking the upper cover 20 and the bottom shell 10, the upper cover 20, the bottom shell 10 and each component in the double-layer sealing structure are in the correct relative position, so that the railway signal box 1 has a good sealing effect.

[0045] like Figure 10 As shown, in some embodiments, the locking member 61 has a plurality of through slots 612 circumferentially arranged along the wall of the insertion hole 611. In some embodiments, the movable member 613 may have a spherical structure. The movable member 613 may be, for example, a steel ball.

[0046] In some embodiments, a plurality of through slots 612 are evenly distributed circumferentially along the wall of the insertion hole 611. In some embodiments, the number of through slots 612 and movable members 613 may be six.

[0047] like Figure 8As shown, in some embodiments, the driving member 63 may include a gear 631 and a rack 632. The gear 631 is disposed within the lock housing 24, and the rack 632 is movably disposed within the lock housing 24 in a horizontal direction. The rack 632 meshes with the gear 631, and the rotation of the gear 631 drives the rack 632 to move in a first horizontal direction. The locking member 61 forms a horizontal channel 614 for the rack 632 to pass through. The upper end face of the rack 632 forms a first inclined surface 6321, and the top wall of the horizontal channel 614 forms a second inclined surface 6141 that engages with the first inclined surface 6321. During the movement of the rack 632 in the first horizontal direction, the first inclined surface 6321 moves towards the second inclined surface 6141, thereby lifting the locking member 61 upwards through the engagement of the first inclined surface 6321 and the second inclined surface 6141, thus causing the locking member 61 to move vertically upwards.

[0048] like Figure 9 As shown, in some embodiments, the locking member 61 may further include a locking member body 615 formed below the horizontal channel 614. A socket 611 and a through slot 612 are formed on the locking member body 615. Both the first inclined surface 6321 and the second inclined surface 6141 are inclined downwards from the direction near the gear 631 to the direction away from the gear 631, such that the rack 632 is inclined downwards along the first horizontal direction (…). Figure 9 During the movement to the left, the locking member 61 is lifted upward by the cooperation of the first inclined surface 6321 and the second inclined surface 6141. At this time, the locking member body 615 is moved upward and separated from the locking engagement part 62. The movable part 613 can move radially outward to release the limiting post 131, so that the limiting post 131 can be dislodged from the insertion hole 611, and the upper cover 20 and the bottom shell 10 are in an unlocked state. When the locking member 61 moves downward in the vertical direction, the movable part 613 moves radially inward to press the limiting post 131 against it, and the upper cover 20 and the bottom shell 10 are in a locked state.

[0049] like Figure 8 and Figure 9 As shown, in some embodiments, the drive member 63 further includes a first reset member 633, used to provide a restoring force to the rack 632 opposite to the first horizontal direction, so that the first inclined surface 6321 moves away from the second inclined surface 6141. By setting the first reset member 633, the rack 632 is driven to move in the second horizontal direction opposite to the first horizontal direction, preventing the rack 632 from moving in the first horizontal direction, thus preventing the rack 632 from lifting the locking member 61 upward to unlock the limiting post 131, and keeping the locking member 61 locked to the limiting post 131.

[0050] See Figure 11 and Figure 12In some embodiments, the lock housing 24 has multiple ribs that, together with the bottom wall of the lock housing 24, define a limiting groove 243 for the locking member 61 to move vertically within it. Figure 10 As shown, the locking fitting 62 is sleeved on the lower part of the locking body 615 of the locking fitting 61, and is also installed on... Figure 12 The limit groove 243 shown is inside.

[0051] like Figure 12 As shown, specifically, the plurality of ribs include a first vertical rib 241 and a second vertical rib 242 facing each other. Two horizontal short ribs 245 extend relative to each other from the first vertical rib 241 and the second vertical rib 242, respectively. The horizontal short ribs 245 are used to restrict the movement of the locking mating member 62 in the height direction. A mounting groove is also formed above the limiting groove 243 for mounting the second reset member 64.

[0052] like Figure 9 As shown, in some embodiments, the end of the rack 632 facing away from the gear 631 forms a rack guide 6323, and a first reset member 633 is sleeved on the rack guide 6323. The end of the rack guide 6323 facing away from the gear 631 is slidably disposed in a rib plate within the lock housing 24. One end of the first reset member 633 abuts against the rib plate, and the other end abuts against the root of the rack guide 6323.

[0053] In some embodiments, the first reset member 633 may be a spring.

[0054] like Figure 8 and Figure 9 As shown, in some embodiments, the locking fitting 62 includes a first conical surface 621 extending obliquely downward from top to bottom toward the locking member 61, the lower radially outer surface of the locking member 61 is a second conical surface 616 adapted to the first conical surface 621, and the insertion hole 611 is coaxially formed with the second conical surface 616 on the radially inner side of the second conical surface 616.

[0055] like Figure 9 As shown, in some embodiments, the locking structure 60 further includes a second reset member 64 for providing a downward restoring force to the locking member 61 so that the locking member 61 moves vertically downward after the first inclined surface 6321 moves away from the second inclined surface 6141.

[0056] In some embodiments, the second reset member 64 may be a spring.

[0057] like Figures 9 to 11As shown, in some embodiments, a groove is formed on the top of the locking member 61, and the upper end of the second reset member 64 abuts against the top wall of the lock housing 24, while the lower end abuts against the bottom wall of the groove in the locking member 61. The second reset member 64 provides a downward restoring force to the locking member 61, enabling the locking member 61 to move vertically downward, thereby allowing the locking member 61 and the limiting post 131 to be stably maintained in a locked state.

[0058] In some embodiments, such as Figure 11 As shown, gear 631 forms a gear torsion portion 6310; as Figure 5 As shown, a keyhole can be formed on the surface of the lock housing 24 facing the gear torsion part 6310, allowing a key that fits the keyhole to be inserted into it. This drives the gear 631 to rotate clockwise or counterclockwise, thus unlocking the upper cover 20 and the bottom cover 10. After the key is removed, the restoring force provided by the first reset member 633 causes the rack 632 to automatically reset the gear 631, ensuring that the upper cover 20 and the bottom cover 10 are locked.

[0059] In some embodiments, when locking the top cover 20 and the bottom shell 10, the gear 631 is twisted, causing the gear 631 to drive the rack 632 to move in the opposite direction along the first horizontal direction, causing the first inclined surface 6321 to move away from the second inclined surface 6141, so that the locking member 61 is pushed downward through the cooperation of the first inclined surface 6321 and the second inclined surface 6141, and the movable member 613 moves radially inward to press the limiting post 131 against it, thereby locking the top cover 20 and the bottom shell 10.

[0060] In some embodiments, after locking the top cover 20 and the bottom shell 10, the key is removed. Under the restoring force of the first reset member 633, the rack 632 drives the gear 631 to move in a second horizontal direction opposite to the first horizontal direction. The gear 631 is reset, and the first inclined surface 6321 of the rack 632 moves away from the second inclined surface 6141, so that the locking member 61 falls downward, thereby causing the movable member 613 to move radially inward and abut against the limiting post 131, making it difficult for the limiting post 131 to dislodge from the insertion hole 611, thereby locking the top cover 20 and the bottom shell 10.

[0061] In some embodiments, the lock housing 24 is provided with two sets of locking structures 60, which share the same gear 631. The two racks 632 of the two sets of locking structures 60 mesh with the gear 631 on the upper and lower sides of the gear 631, respectively. The locking members 61 and locking mating members 62 of the two sets of locking structures 60 are symmetrically arranged.

[0062] In some embodiments, the locking bar 632 may be a Z-shaped rack.

[0063] In some embodiments, when the upper cover 20 and the bottom shell 10 are locked (with Figure 8 Taking the locking process of the left half of the locking structure 60 as an example (the locking process of the right half of the locking structure 60 is the same as the left half), the upper cover 20 can move along the limiting post 131 towards the bottom shell 10 until the bottom of the lock shell 24 contacts the plane of the limiting part 13. At this time, the upper cover 20 reaches the locked position, and the locking member 61 is held in the lower position under the elastic force of the second reset member 64. The movable member 613 moves radially inward to press the limiting post 131 against it, thereby locking the upper cover 20 and the bottom shell 10. At this time, if the limiting post 131 and the locking structure 60 tend to move away from each other, the limiting post 131, the movable member 613 and the first conical surface 621 of the locking mating member 62 form a conical lock, which can achieve the locking of the upper cover 20 and the bottom shell 10. At this time, a locking force is generated between the upper cover 20 and the bottom shell 10. According to the test, the locking force can reach 5kN.

[0064] In some embodiments, when unlocking the upper cover 20 and the bottom cover 10 (with Figure 8 Taking the unlocking process of the left half of the locking structure 60 as an example (the unlocking process of the right half of the locking structure 60 is the same as that of the left half), a key that matches the lock hole is inserted into the lock hole to drive the gear 631 to rotate clockwise, which in turn drives the rack 632 to move to the left. This causes the first inclined surface 6321 of the rack 632 to move towards the second inclined surface 6141, so that the locking member 61 is lifted upward through the cooperation of the first inclined surface 6321 and the second inclined surface 6141, thereby causing the locking member 61 to move vertically upward. At this time, the movable member 613 moves upward and spreads away from the limiting post 131. A gap is created between the movable member 613 and the limiting post 131. The conical lock formed by the movable member 613, the limiting post 131, and the first conical surface 621 of the locking mating member 62 is released, completing the unlocking of the upper cover 20 and the bottom shell 10.

[0065] In some embodiments, the upper cover 20 may be hinged to the bottom shell 10. For example... Figure 13 As shown, the upper cover 20 includes a hinge portion 71, and the bottom shell 10 includes a hinge mating portion 73. The upper cover 20 and the bottom shell 10 are hinged by a rotating shaft 72 that passes through the hinge portion 71 and the hinge mating portion 73.

[0066] In some embodiments, the railway signal box 1 may further include a stop structure for limiting the opening angle of the upper cover 20 relative to the base shell 10. In some embodiments, the hinge portion 71 includes a first stop surface 711, and the hinge mating portion 73 includes a second stop surface 731. When the upper cover 20 is opened to the preset opening angle relative to the base shell 10, the first stop surface 711 abuts against the second stop surface 731, preventing the upper cover 20 from continuing to rotate relative to the base shell 10, thereby maintaining the preset opening angle between the upper cover 20 and the base shell 10.

[0067] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A railway signal box, comprising a bottom shell having an upper opening and a top cover having a lower opening, the top cover and the bottom shell being fastened together to jointly define a box body, characterized in that, A first groove and a second groove are formed around the lower opening of the upper cover, with the second groove located outside the first groove. The railway signal box further includes: a first sealing part and a second sealing part, wherein the first sealing part is disposed within the first groove, and the second sealing part is disposed within the second groove. A first abutment portion and a second abutment portion are formed around the upper opening of the bottom shell, with the second abutment portion located outside the first abutment portion; When the top cover and the bottom shell are fastened together, the bottom of the first sealing part abuts against the first abutting part, and the bottom of the second sealing part abuts against the second abutting part; The upper cover also has a locking shell located outside the second groove; The bottom shell also forms a limiting part for abutting against the lower end of the lock shell; The railway signal box further includes: a locking structure disposed inside the lock housing, used to lock or unlock the upper cover and the bottom housing; fixing the upper cover and the bottom housing in the vertical locking position, thereby keeping the compression of the first sealing part and the second sealing part constant; The bottom shell also has a limiting post extending upward from the limiting portion, and the locking structure includes: A locking member having an insertion hole for engaging with the limiting post, at least one radially distributed through groove circumferentially distributed along the wall of the insertion hole, and at least one movable member located in the corresponding through groove and capable of radial movement, the locking member being vertically movably disposed within the lock housing. A locking member, disposed within the lock housing, is configured such that when the locking member moves vertically downward, the movable member moves radially inward to abut the limiting post; and when the locking member moves vertically upward, the movable member moves radially outward to release the limiting post; and A driving component, disposed within the lock housing, is used to drive the locking component to move vertically upward.

2. The railway signal box according to claim 1, characterized in that, The first sealing part includes: A first body sealing portion and a first attachment sealing portion connected to the bottom of the first body sealing portion, wherein the first attachment sealing portion is a bent and extended strip. The first body sealing part is tightly fitted with the first groove; The first attached sealing portion is configured to be able to extend vertically under the action of gravity and to be compressed when it comes into contact with the first abutting portion.

3. The railway signal box according to claim 1, characterized in that, The second sealing part includes: The second body sealing part and the second attachment sealing part connected to the bottom of the second body sealing part, wherein the second attachment sealing part is a bent and extended strip. The second body sealing part is tightly fitted with the second groove; The second attached sealing portion is configured to extend vertically under the action of gravity and to be compressed when it comes into contact with the second abutting portion.

4. The railway signal box according to claim 3, characterized in that, The first groove and the second groove are separated by a partition wall, the lower end of which is higher than the lower end of the other groove wall of the first groove and the second groove, respectively; The second sealing part further includes: The second connecting part is used to connect the bottom surface of the second body sealing part and the top surface of the second attachment sealing part. Wherein, the second body sealing portion protrudes from the second attached sealing portion along the width direction at one end away from the first sealing portion; The end of the second attached sealing portion away from the first sealing portion protrudes from the second connecting portion in the width direction; The second connecting portion protrudes from the second body sealing portion along the width direction at one end near the first sealing portion; The end of the second attached sealing portion near the first sealing portion is flush with the second connecting portion along the width direction; The second connecting part abuts against the lower end face of the partition wall.

5. The railway signal box according to claim 1, characterized in that, The bottom wall of the second groove is lower than the bottom wall of the first groove in the vertical direction.

6. The railway signal box according to claim 1, characterized in that, The driving component includes: Gears, disposed within the lock housing, and A rack is movably disposed within the lock housing in a horizontal direction. The rack meshes with the gear, and the rack moves in a first horizontal direction due to the rotation of the gear. The locking member forms a horizontal channel for the rack to pass through, the upper end face of the rack has a first inclined surface, and the top wall of the horizontal channel has a second inclined surface that cooperates with the first inclined surface. During the movement of the rack along the first horizontal direction, the first inclined surface moves toward the direction of the second inclined surface, so as to lift the locking member upward through the cooperation of the first inclined surface and the second inclined surface, thereby causing the locking member to move vertically upward.

7. The railway signal box according to claim 6, characterized in that, The drive unit further includes a first reset member for providing a restoring force to the rack opposite to the first horizontal direction, so as to move the first inclined plane away from the second inclined plane.

8. The railway signal box according to claim 7, characterized in that, The locking fitting includes a first conical surface that extends downward at an angle from top to bottom toward the locking member. The lower radially outer surface of the locking member is a second conical surface adapted to the first conical surface, and the insertion hole is formed coaxially with the second conical surface on the radially inner side of the second conical surface; The locking structure further includes a second reset member for providing a downward restoring force to the locking member so that the locking member moves vertically downward after the first inclined surface moves away from the second inclined surface.

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