Track circuit protection box
By designing a tightly buckle-connected mezzanine structure and a rectangular ring-shaped shell bracket, the stability and protection effect of the existing track circuit protection box in long-term vibration environment is solved, and higher earthquake resistance and safety are achieved.
Patent Information
- Application Number
- CN202421875414.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-05
AI Technical Summary
In the long-term vibration environment, existing track circuit protection boxes have problems such as low internal space utilization, loose structure and intimate connection, which leads to a decrease in stability and reduced protection effect, and even causes safety hazards.
Design a track circuit protection box with a compact structure and reasonable space utilization, adopts a base and cover with a sandwich structure, and is connected by tightly buckled and set up a rubber pad to buffer vibration. Use a rectangular ring-shaped shell bracket to fix and support the cover, and install ACF material at the shock absorption part to achieve shock absorption effect.
Through tight connection and shock absorption design, the stability and compactness of the protective box are improved, its earthquake resistance in long-term vibration environments are enhanced, and the stability and safety of the protective effect are ensured.
Smart Images
Figure CN222916363U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of track circuit protection, in particular to a track circuit protection box. Background Art
[0002] As an important part of the track circuit, the track circuit protection box undertakes the important task of protecting the cable nodes and improving the service life of the cable. However, the track circuit protection box in the prior art has exposed some problems during long-term use, especially in an environment with long-term vibration.
[0003] The internal space utilization rate of the existing track circuit protection box is low. The space around each component is too large, which not only increases the overall volume and weight of the protection box, but also reduces its ability to absorb vibration. When a train passes or the external environment changes and generates vibration, these extra spaces cannot effectively absorb and disperse the vibration energy, resulting in the loosening of the overall structure of the protection box. In addition, since the connection between the components is not tight enough, the protection box is prone to looseness in a long-term vibration environment. This not only affects the stability of the protection box itself, but may also lead to a decrease in the protection effect and even cause safety hazards.
[0004] Therefore, it is necessary to design a track circuit protection box with compact structure and reasonable space utilization. Utility Model Content
[0005] In order to solve the problems existing in the above-mentioned background technology, the utility model provides a track circuit protection box with compact structure and reasonable space utilization.
[0006] A track circuit protection box comprises a protection box base, a protection box cover and a cover bracket, wherein the protection box base is snap-fitted to the protection box cover, a rubber pad is provided at the snap-fitting position, and the cover bracket is a rectangular ring structure, and its two opposite sides are respectively fixed on the bottom walls of the protection box base and the protection box cover, wherein the protection box cover and the cover bracket are fixed by long screws, and the other two sides of the cover bracket are respectively abutted against the inner side walls of the protection box cover, and shock-absorbing parts are provided on the two sides where the cover bracket abuts against them.
[0007] Furthermore, a plug-in structure is formed at the connection between the protection box base and the protection box cover, an outer protrusion is formed at the edge of the protection box base, and an inner concave is formed at the edge of the protection box cover, and the outer protrusion is plugged into and matched with the inner concave.
[0008] Furthermore, the protection box base and the protection box cover are both sandwich structures, with the outer layer being a stainless steel layer and the middle being filled with ACF material.
[0009] Furthermore, the long screw is sleeved with a spring washer and a flat washer adapted thereto.
[0010] Furthermore, the protection box base is provided with insulating pillars for installing capacitors and a coil support frame for installing coils, and the protection box base is provided with through holes, through which pan head bolts penetrate and are respectively connected to the capacitor and the coil support frame.
[0011] Furthermore, the pan head bolt is sleeved with spring washers and flat washers adapted thereto.
[0012] Furthermore, the coil support frame includes a coil lower pressure plate, a long bolt and a coil upper pressure plate. The coil lower pressure plate and the coil upper pressure plate are parallel, and a long bolt is arranged between the two. There are four long bolts, which are respectively located at the four corners of the coil lower pressure plate and the coil upper pressure plate. A coil and a transformer are arranged between the coil lower pressure plate and the coil upper pressure plate, and a circuit board is arranged on the other side of the coil upper pressure plate.
[0013] The beneficial effects of the utility model are as follows: the protection box base and the protection box cover shell of the utility model are connected by a tight fit, and a rubber cushion can play a buffering role. By arranging a cover shell bracket with a rectangular ring structure between the two, on the one hand, the protection box base and the protection box cover shell can be connected and fixed, and on the other hand, support can be formed for the protection box cover shell, and a shock-absorbing effect can be achieved through the shock-absorbing part between the two, thereby ensuring its stability and compactness. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.
[0015] Figure 2 It is a three-dimensional structural schematic diagram of the hidden protection box cover of the utility model.
[0016] Figure 3 It is a three-dimensional structural schematic diagram of another viewing angle of the hidden protection box cover of the utility model.
[0017] Figure 4 It is a schematic diagram of the sandwich structure of the protective box cover of the utility model.
[0018] Markings in the accompanying drawings: 1: protective box base, 2: protective box cover, 3: cover bracket, 4: threaded hole, 41: long screw, 5: insulating pillar, 6: coil support frame, 61: coil lower pressure plate, 62: long bolt, 63: coil upper pressure plate, 7: through hole, 8: pan head bolt, 9: circuit board, 10: transformer, 11: coil, 12: capacitor, 13: terminal socket. DETAILED DESCRIPTION
[0019] In order to make the utility model's purpose, features, and advantages more obvious and easy to understand, the following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the embodiments described below are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are 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, rather than indicating or implying 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 a limitation on the present invention.
[0021] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.
[0022] like Figure 1 The overall structure diagram of the utility model is shown. Figure 2 and Figure 3 The schematic diagram of the internal structure after the protective box cover is hidden is shown. The track circuit protective box includes a protective box base 1, a protective box cover 2 and a cover bracket 3. The protective box base 1 and the protective box cover 2 both adopt a sandwich structure. Specifically, the outer layer is a stainless steel layer, and the middle is filled with ACF material. The sandwich structure has a good shock absorption effect. For details, please refer to Figure 4. In addition, a plug-in structure is formed at the connection between the protective box base 1 and the protective box cover 2, an outer protrusion is formed at the edge of the protective box base 1, and an inner concave is formed at the edge of the protective box cover 2 (not shown in the figure), the outer protrusion and the inner concave are plugged together, and a rubber cushion is arranged at the connection between the two, which has the function of shock absorption and buffering. The protective box base 1 and the protective box cover 2 are connected in a tightly buckled manner. It should be particularly noted that a cover bracket 3 is arranged in the protective box, which has a rectangular ring structure, and the opposite sides are respectively fixed on the bottom walls of the protective box base 1 and the protective box cover 2, and a shock absorbing part is arranged at the position where the two abut, and the shock absorbing part is made of ACF material. Among them, threaded holes 4 are opened at corresponding positions on the bottom wall of the protective box cover 2 and the cover bracket 3, and a long screw 41 passes through the protective box cover 2 and the cover bracket 3 from the outside of the protective box cover 2 to fix the two, and a spring washer and a flat washer matching with the long screw 41 are provided at the end close to the screw head. The other two sides of the cover bracket 3 are respectively in contact with the inner wall of the protection box cover 2. On the one hand, it can connect and fix the protection box cover 2 and the protection box base 1. On the other hand, it can also support the protection box cover 2 to prevent it from being deformed by temperature and humidity changes or external impacts.
[0023] The protective box of the utility model has a compact structure and reasonable space utilization. The protective box base 1 is provided with an insulating support 5 for installing a capacitor 12 and a coil support frame 6 for installing a coil. The coil support frame 6 and the insulating support 5 are respectively located on both sides of the cover frame 3. The protective box base 1 is provided with a through hole 7, and the pan head bolt 8 penetrates the hole and is respectively connected with the capacitor 12 and the coil support frame 6. Among them, the coil support frame 6 includes a coil lower pressing plate 61, a long bolt 62 and a coil upper pressing plate 63. The coil lower pressing plate 61 and the coil upper pressing plate 63 are parallel, and a long bolt 62 is arranged between the two. There are four long bolts 62, which are respectively located at the four corners of the coil lower pressing plate 61 and the coil upper pressing plate 63. The coil 11 and the transformer 10 are arranged between the coil lower pressing plate 61 and the coil upper pressing plate 63, and the circuit board 9 is arranged on the other side of the coil 11 upper pressing plate 63. A terminal socket is arranged on the side of the protective box base 1 opposite to the coil support frame 6, and the pan head bolt 8 is sleeved with a spring washer and a flat washer adapted thereto.
[0024] By arranging spring washers and flat washers on the pan head bolt 8 and the long screw 41, a good tightening effect can be achieved, and the spring washers also have a shock absorbing effect.
[0025] In a specific embodiment, the pan head bolt 8 is an M4x40 pan head bolt, which passes through the protection box base 1, is inserted into the insulating support 5 and connected to the capacitor 12; the M4x14 pan head bolt 8 passes through the protection box base 1 and is connected to the coil lower pressure plate 61;
[0026] The M4x40 pan head bolt 8 passes through the circuit board 9, is inserted into the insulating support 5 and connected to the coil upper pressure plate 63; the circuit board 9 is welded to the transformer 10 and the capacitor 12 through wires; the M5x100 long bolt 62 passes through the coil lower pressure plate 61, the transformer 10, and the coil upper pressure plate 63, and is fastened with an M5 external hexagon nut (with a flat spring washer); the long screw 41 passes through the protective box base 1 and is connected to the cover bracket 3.
[0027] In summary, the present invention aims to improve the structural design and spatial layout of the track circuit protection box, thereby improving its stability and reliability in a long-term vibration environment, and providing strong protection for the safe operation of the railway transportation system.
[0028] It should be understood that the above description is only for exemplary purposes and is not intended to limit the present invention. Those skilled in the art will understand that variations of the present invention will be included within the scope of the claims herein.
Claims
1. A track circuit protection box, which is a rectangular parallelepiped as a whole, and is characterized by: The invention comprises a protective box base (1), a protective box cover (2) and a cover bracket (3); the protective box base (1) is snap-fitted to the protective box cover (2), a rubber pad is provided at the snap-fitting position, the cover bracket (3) is a rectangular ring structure, and its two opposite sides are respectively fixed on the bottom walls of the protective box base (1) and the protective box cover (2), wherein the protective box cover (2) and the cover bracket (3) are fixed by long screws (41), and the other two sides of the cover bracket (3) are respectively in contact with the inner side walls of the protective box cover (2), and the two sides of the cover bracket (3) in contact with the inner side walls are provided with shock absorbing parts.
2. The track circuit protection box according to claim 1 is characterized in that: A plug-in structure is formed at the connection between the protection box base (1) and the protection box cover (2); an outer convex portion is formed at the edge of the protection box base (1); an inner concave portion is formed at the edge of the protection box cover (2); and the outer convex portion is pluggably matched with the inner concave portion.
3. The track circuit protection box according to claim 1 or 2, characterized in that: The protection box base (1) and the protection box cover (2) are both sandwich structures, with an outer layer being a stainless steel layer and an ACF material filled in the middle.
4. The track circuit protection box according to claim 3 is characterized in that: The long screw (41) is sleeved with a spring washer and a flat washer adapted thereto.
5. The track circuit protection box according to claim 4 is characterized in that: The protective box base (1) is provided with an insulating support (5) for mounting a capacitor (12) and a coil support frame (6) for mounting a coil. The protective box base (1) is provided with a through hole (7) through which a pan head bolt (8) passes and is respectively connected to the capacitor (12) and the coil support frame (6).
6. The track circuit protection box according to claim 5 is characterized in that: The pan head bolt (8) is sleeved with a spring washer and a flat washer which are adapted thereto.
7. The track circuit protection box according to claim 6 is characterized in that: The coil support frame (6) comprises a coil lower pressing plate (61), a long bolt (62) and a coil upper pressing plate (63); the coil lower pressing plate (61) and the coil upper pressing plate (63) are parallel, a long bolt (62) is arranged between the two, four long bolts (62) are provided, and they are respectively located at four corners of the coil lower pressing plate (61) and the coil upper pressing plate (63); a coil (11) and a transformer (10) are arranged between the coil lower pressing plate (61) and the coil upper pressing plate (63); and a circuit board (9) is arranged on the other side of the coil upper pressing plate (63).