Shockproof mounting base of railway signal machine

Abstract

The invention discloses a shockproof mounting base of a railway signal machine, which belongs to the technical field of railway equipment and comprises a support plate component and a damping component. Through the rubber vibration glue filled in the elastic interval, the outer movable part can be flexibly coated, so that the front-back and left-right multi-direction damping of the outer movable part is realized, and the hard vibration impact force transmitted to the outer movable part through the fixed component is reduced; in addition, the inner movable part and the railway signal machine connected with the inner movable part through the assembling assembly are vertically damped through the first elastic component, and under the cooperation of front-back-left-right and vertical shock isolation, the effect of flexible damping shock isolation on the railway signal machine in the up-down direction, the front-back direction, the left-right direction and the left-right direction is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of railway equipment, and in particular relates to a shockproof mounting base for a railway signal machine. Background Art

[0002] Railway signal is a fixed signal on the railway that uses different colors of lights to direct traffic and shunting. It is an important part of the railway signal system. When the railway passes through the tunnel, the signal is generally installed directly on the tripod bracket by bolts, and the tripod bracket is fixed to the side wall of the tunnel by expansion bolts. This method of simply installing the signal on the tripod bracket by bolts has the following shortcomings when used: Since the running of railway or subway trains will cause resonance on the side wall of the tunnel, the hard resonance force will be directly transmitted to the signal through the tripod bracket. Under the impact of this hard resonance force for a long time, it is easy to cause damage to the signal and loosen or loosen the bolts at the connection parts, resulting in unsatisfactory safety and stability. Summary of the invention

[0003] The object of the present invention is to provide a shockproof mounting base for a railway signal machine, so as to solve the problem of insufficient safety and stability of the existing railway signal machines mentioned in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a shockproof mounting base for a railway signal, comprising: The support plate member is connected to the side wall of the railway tunnel through the frame assembly; and a damping assembly, the damping assembly comprising: A fixing member is installed on the support plate member, wherein an elastic zone is defined in the fixing member and a through hole is provided at an end away from the support plate member; The outer movable member has a first end disposed in the elastic zone and a second end extending in the vertical direction and passing through the through hole, and the cross section of the outer movable member is smaller than the cross section of the through hole, the elastic zone is filled with shock-absorbing rubber at the periphery of the first end of the outer movable member, and the outer movable member is provided with a first groove formed by extending from the second end in the vertical direction; The inner movable part is configured to be able to slide along the first groove, and has a first connecting end arranged in the first groove and a second connecting end extending outside the first groove in the vertical direction, a first elastic component is arranged between the first connecting end and the end surface of the first groove, and the second connecting end is connected to the railway signal through an assembly component.

[0005] Furthermore, the damping assembly also includes a buckle seat component embedded in the shock-absorbing rubber and connected to the first end of the outer movable part, and the cross-section of the buckle seat component is larger than the cross-section of the perforation.

[0006] Furthermore, the mounting base also includes a hole blocking assembly, which includes a hole blocking member sleeved on the second end of the outer movable part, and the outer edge cross-section of the hole blocking member is larger than the through-hole cross-section.

[0007] Furthermore, the hole blocking member has: The disc body is formed by extending outwardly from the side wall of the second end of the outer movable member; A frame portion is formed by extending the outer edge of the disk body portion in a vertical direction, and the distance between the end face of the frame portion and the end face of the fixing member is less than 1 mm; A plurality of balls are nested on the disc body and distributed in a ring array, and the balls and the end surface of the outer movable part are in point contact.

[0008] Furthermore, the assembly component includes: Connecting the seat body to form a mounting carrier for the signal light body; The connecting disc body is fixed to the second connecting end of the inner movable part, and the connecting disc body and the connecting seat body are connected by bolts and nuts.

[0009] Furthermore, the mounting base also includes a second elastic member sleeved on the outer side of the inner movable member, and two ends of the second elastic member in the vertical direction are respectively in contact with the connecting disc body and one end of the outer movable member.

[0010] Furthermore, the inner movable part is provided with a second groove extending from the second connecting end in the vertical direction, and the second groove is provided with an extrusion member. The extrusion member is in contact with the connecting disk body at one end in the vertical direction, and a third elastic member in a compressed state is arranged between the other end and the end surface of the second groove.

[0011] Furthermore, a limiting groove is provided on the side wall of the inner movable part, and a limiting block capable of sliding in the limiting groove is provided on the inner wall of the second groove.

[0012] Furthermore, the frame assembly includes at least two bracket components, adjacent bracket components are arranged at equal intervals along the length direction of the railway tunnel, and a single bracket component includes: A first carrier portion extending in a vertical direction and mounted on a side wall of a railway tunnel via a fastening assembly; The second carrier part is formed by extending the top end of the first carrier part along the width direction of the railway tunnel and serves as a mounting carrier for the support plate member.

[0013] Furthermore, the fastening assembly comprises: An expansion bolt having a screw portion and an expansion portion; The support sleeve has a main body extending along the axis of the expansion bolt and an outer edge portion formed by radially extending outward from one end of the main body adjacent to the expansion portion, and the first carrier portion is provided with a hole adapted to the main body; The nut is arranged on the screw portion.

[0014] Furthermore, the fastening assembly also includes a shock-absorbing rubber ring arranged on the nut and the end face of one side of the outer edge portion adjacent to the expansion portion, and a shock-absorbing rubber sleeve is provided between the shock-absorbing rubber ring arranged on the end face of one side of the outer edge portion and the expansion bolt.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present application adds a damping component at the connection position between the railway signal and the side wall of the railway tunnel. By filling the elastic interval with rubber shock-absorbing rubber, the outer movable parts can be flexibly covered to achieve multi-directional shock absorption of the outer movable parts in the front, back, left, and right directions, and reduce the hard shock impact force transmitted to the outer movable parts through the fixed components. In addition, the first elastic component is used to perform vertical shock absorption on the inner movable parts and the railway signal connected to the inner movable parts through the assembly component. With the cooperation of front, back, left, right and vertical seismic isolation, the effect of multi-directional flexible damping seismic isolation of the railway signal in the upper, lower, front, back, left, and right directions is achieved, which can effectively reduce the hard shock impact force transmitted to the railway signal, reduce the risk of damage due to hard shock impact and loosening or vibration-off of threaded connection parts, and improve safety and stability in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional schematic diagram of the installation base; Figure 2 This is a front cross-sectional view of the installation base; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 It is a schematic diagram of the fastening component structure.

[0017] In the figure: 10. Railway signal machine; 100. support plate member; 101. reinforcing rib; 200, damping assembly; 201, fixing member; 202, elastic zone; 203, shock-absorbing rubber; 204, perforation; 205, buckle seat member; 206, outer movable member; 206a, first end; 206b, second end; 207, first groove; 208, first elastic member; 209, inner movable member; 210, second elastic member; 211, second groove; 212, extrusion member; 213, third elastic member; 300, assembly components; 301, connection seat body; 302, connection disc body; 400, a support member; 400a, a first carrier portion; 400b, a second carrier portion; 400c, a reinforcement portion; 500, fastening assembly; 501, expansion bolt; 501a, screw portion; 501b, expansion portion; 502, support sleeve; 502a, main body portion; 502b, edge portion; 503, shock-absorbing rubber ring; 504, shock-absorbing rubber sleeve; 505, nut; 600, hole blocking member; 600a, disk body; 600b, frame portion; 601, ball bearing. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] A vibration-proof mounting base for a railway signal machine (hereinafter referred to as the mounting base), referring to Figure 1 The mounting base includes a support plate member 100 and a damping assembly 200, wherein the support plate member 100 is horizontally arranged and connected to the side wall of the railway tunnel through a frame assembly, and the damping assembly 200 is installed on the support plate member 100 and connected to the railway signal light through an assembly assembly 300. When the running of the subway train causes the side wall of the tunnel to resonate, the resonant force is transmitted to the support plate member 100 through the frame assembly, and multi-directional shock absorption is achieved through the damping assembly 200 to reduce the hard resonant force transmitted to the railway signal light 10.

[0020] Reference Figure 3 In some embodiments, the damping assembly 200 includes a fixed member 201, an outer movable member 206 and an inner movable member 209, wherein one end of the fixed member 201 in the vertical direction is mounted on the support plate member 100, and the other end extends in the vertical direction and is provided with a through hole 204, and an elastic interval 202 is defined in the fixed member 201. In some examples, a reinforcing rib 101 structure is provided at the connection position between the fixed member 201 and the support plate member 100 to improve the connection strength between the fixed member 201 and the support plate member 100. In some embodiments, the fixed member 201 has an extension portion and a flange portion, wherein the extension portion is configured as a cylindrical component extending in the vertical direction, and correspondingly, the elastic interval 202 is configured as a cylindrical interval defined in the extension portion. Further, the flange portion is formed by radially extending one end of the extension portion in the axial direction, and the through hole 204 is formed on the flange portion and configured as a circular through hole.

[0021] Continue to refer to Figure 3The outer movable member 206 has a first end 206a disposed in the elastic interval 202 and a second end 206b extending in the vertical direction and passing through the through hole 204 of the fixed member 201, and the cross section of the outer movable member 206 is smaller than the cross section of the through hole 204. At the same time, the elastic interval 202 is filled with a shock-absorbing glue 203 around the first end 206a of the outer movable member 206, and the shock-absorbing glue 203 is used to realize the flexible connection between the outer movable member 206 and the fixed member 201, further In the step, a buckle seat component 205 is fixed to the first end 206a of the above-mentioned movable component. The cross-section of the buckle seat component 205 is larger than the cross-section of the perforation 204, and is pre-buried in the shock-absorbing rubber 203 in the filling interval. When the fixed component 201 vibrates, based on the flexible surrounding effect of the shock-absorbing rubber 203, the outer movable part 206 and the buckle seat component 205 can perform shock absorption in the front, back, left, right (hereinafter also referred to as the horizontal direction), thereby reducing the hard impact force acting on the buckle seat component 205 and the outer movable part 206.

[0022] Continue to refer to Figure 3 The outer movable member 206 is provided with a first groove 207, and the first groove 207 is formed by extending the second end 206b of the outer movable member 206 in the vertical direction. Exemplarily, the first groove 207 is configured as an axially extending cylindrical groove, and the inner movable member 209 and the first groove 207 are configured as a sliding connection. In some embodiments, the side wall of the inner movable member 209 is provided with a limiting groove, and correspondingly, the side wall of the first groove 207 is provided with a limiting block adapted to the limiting groove. When the inner movable member 209 slides along the first groove 207, based on the cooperation of the limiting block and the limiting groove, the inner movable member 209 can be moved. The displacement distance of the movable part 209 is limited to achieve an anti-slip effect. Furthermore, the inner movable part 209 has a first connecting end arranged in the first groove 207 and a second extending end extending outside the first groove 207, wherein the second end 206b of the inner movable part 209 is connected to the railway signal machine 10 through an assembly component 300, and a first elastic component 208 (such as a spring) is arranged between the end face of the first connecting end of the inner movable part 209 and the end face of the first groove 207. Based on the first elastic component 208, the hard shock impact force transmitted to the railway signal machine 10 in the vertical direction can be reduced.

[0023] Reference Figure 3The assembly component 300 includes a connecting seat body 301 and a connecting disc body 302, wherein the connecting seat body 301 is configured as a mounting base for the signal light, and the connecting disc body 302 is fixed to the second connecting end of the inner movable part 209. In some examples, the connecting disc body 302 is fixed to the outer wall of the second end 206b of the inner movable part 209, and the connecting seat body 301 and the connecting disc body 302 are connected by bolts and nuts, thereby realizing the connection between the railway signal light, the connecting seat body 301, the connecting disc body 302 and the inner movable part 209. Further, the mounting base also includes a second elastic member 210 (such as a spring), which is sleeved on the periphery of the inner movable part 209, and the two ends of the second elastic member 210 in the vertical direction are respectively in contact with the second end 206b of the inner movable part 209 and the connecting disc body 302. By setting the second elastic member 210, the hard shock impact force transmitted to the railway signal machine 10 in the vertical direction can be further reduced, returning to Figure 3 , Continuing to explain the mounting base, in some embodiments, the inner movable member 209 is provided with a second groove 211, and the second groove 211 is formed by extending the second connecting end of the inner movable member 209 in the vertical direction. Further, the mounting base also includes an extrusion member 212, which is arranged in the second groove 211, and one end of the extrusion member 212 is in contact with the connecting seat body 301, and the other end is connected to the end surface of the second groove 211 through a third elastic member 213 (such as a spring), and the third elastic member 213 is in a compressed state. Based on the elastic restoring force of the third elastic member 213, the extrusion member 212 can always elastically tighten the connecting seat body 301 upward, and the bolt is tightened upward by using an elastic tightening method, so that the thread of the bolt and the nut are always in an elastic tightening bite locking state, thereby reducing the phenomenon of thread loosening or loosening due to vibration, and further improving the long-term stable anti-loosening effect of the threaded connection.

[0024] Reference Figure 3In some embodiments, the mounting base further includes a hole blocking component, which includes a baffle member fixedly sleeved on the outer wall of the second end 206b of the outer movable member 206, wherein the outer edge cross-section of the baffle member is larger than the cross-section of the through-hole 204, so as to cover the through-hole 204 and achieve a dustproof effect. In some embodiments, the hole blocking component 600 includes a disk body portion 600a and a frame portion 600b, wherein the disk body portion 600a is formed by extending outward from the outer wall of the second end 206b of the outer movable member 206, and the frame portion 600b is formed by the outer edge of the disk body portion 600a. It extends in the vertical direction, and the distance between the end face of the frame portion 600b and the end face of the fixing member 201 is less than 1 mm. Based on this arrangement, direct contact between the hole blocking member 600 and the fixing member 201 can be avoided, that is, the transmission of hard shock force is prevented while ensuring the equation effect. Furthermore, the above-mentioned hole blocking assembly also includes a plurality of balls 601, and the plurality of balls 601 are nested on the disc body portion 600a and distributed in a circular array, and the balls 601 and the fixing member 201 are in point contact, and the balls 601 are movably connected to the end face of the fixing member 201.

[0025] Reference Figure 2 The frame assembly includes at least two bracket components 400, and adjacent bracket components 400 are arranged at equal intervals along the length direction of the railway tunnel, and the bracket components 400 are configured as connecting carriers of the railway tunnel side wall and the support plate component 100, that is, the support plate component 100 is connected to the railway tunnel side wall through the bracket components 400. In some embodiments, a single bracket component 400 includes a first carrier portion 400a extending in the vertical direction and a second carrier portion 400b extending from the top of the first carrier portion 400a along the width direction of the railway tunnel, wherein the first carrier portion 400a is installed on the side wall of the railway tunnel through a fastening assembly 500, and the support plate component 100 is fixed to the second carrier portion 400b by welding or the like. In some embodiments, the single bracket component 400 also includes a reinforcing portion 400c, and at this time, the ends of the first carrier portion 400a and the second carrier portion 400b that are far away from each other are connected by the reinforcing portion 400c to form a triangular bracket component 400.

[0026] Reference Figure 4The fastening assembly 500 comprises an expansion bolt 501, a support sleeve 502 and a nut 505. The expansion bolt 501 comprises a screw portion 501a and an expansion portion 501b. The support sleeve 502 comprises a main body portion 502a and an outer edge portion 502b extending along the axis of the expansion bolt 501, wherein the outer edge portion 502b is formed by radially extending outward from one end of the main body portion 502a adjacent to the expansion portion 501b, and a through hole matching the main body portion 502a of the support sleeve 502 is provided on the side wall of the railway tunnel. Further, in some embodiments, the outer edge portion 502b of the support sleeve 502 and one end of the nut adjacent to the expansion portion 501b are connected with a shock-absorbing rubber ring 503 by bonding or the like, wherein the shock-absorbing rubber ring 203 bonded to one end of the nut 505 is formed as a hexagonal rubber ring. Further, the shock-absorbing rubber ring 503 disposed at one end of the outer edge portion 502b is provided with a A set of shock-absorbing rubber 203 is provided between the rubber ring 503 and the expansion bolt 501. Based on the elastic effect of the shock-absorbing rubber ring 503 and the shock-absorbing rubber sleeve 504, a flexible isolation effect can be achieved between the bracket component 400 and the expansion bolt 501 and the nut. When the train passes and the side wall of the railway tunnel resonates, flexible seismic isolation and earthquake resistance can be performed to reduce the hard shock force transmitted to the frame component, thereby reducing the risk of loosening and improving the long-term use stability. During the installation process, first, a mounting hole is drilled on the side wall of the railway tunnel, and then the expansion part 501b of the expansion bolt 501 is inserted into the mounting hole, and the shock-absorbing rubber 203 circle on the outer edge 502b is squeezed against the side wall of the railway tunnel, and the nut is rotated to pull the screw part 501a of the expansion bolt 501, so that the expansion part 501b of the expansion bolt 501 expands and is squeezed and locked with the inner wall of the mounting hole.

[0027] When the subway train runs and causes the tunnel side wall to resonate, the shock-absorbing rubber ring 503 and the shock-absorbing rubber sleeve 504 on the fastening component 500 can be flexibly isolated, and the remaining part of the hard vibration resonance force after the flexible isolation is transmitted to the bracket component 400. The bracket component 400 drives the fixed component 201 to vibrate as a whole through the support plate component 100. Since the shock-absorbing rubber 203 fills the elastic range 202 in the fixed component 201 and surrounds the buckle seat component 205 and the first end 206a of the outer movable part 206, when the fixed component 201 follows the bracket component 400 to vibrate hard, the effect of the flexible surrounding of the shock-absorbing rubber 203 can be used to isolate the buckle seat component 205 and the outer movable part 206 in multiple directions in the front, back, left and right directions, thereby reducing The hard shock impact force transmitted to the buckle seat component 205 and the outer movable part 206, in addition, the first elastic component 208 can be used to perform vertical buffering damping and seismic isolation on the inner movable part 209 and the connecting plate body 302. Under the cooperation of front, back, left, right and vertical seismic isolation, the effect of multi-directional flexible damping seismic isolation of the connecting plate body 302 is achieved, thereby achieving the effect of multi-directional flexible damping seismic isolation of the railway signal machine 10 and the connecting seat body 301. The use of multi-directional flexible damping seismic isolation can effectively reduce the hard shock impact force transmitted to the connecting seat body 301 and the railway signal machine 10, thereby reducing the risk of the railway signal machine 10 being damaged by hard shock impact, and reducing the risk of the threaded connection part being loosened or loosened by hard shock, thereby improving the safety and stability of use; In addition, by utilizing the movable contact between the ball 601 and the top of the fixing member 201, the hard shock force will not be transmitted to the hole blocking member 600 when the fixing member 201 is hard shaken front, back, left, and right. The hole blocking member 600 is also utilized to block and prevent impurities from entering the through hole 204, thereby further ensuring the stability of use. Through the third elastic member 213, an upward tensioning elastic force can always be applied to the extrusion member 212, so that the extrusion member 212 is always elastically tightened upward against the connecting seat. The elastic tightening method is utilized to tighten the bolt upward, so that the thread of the bolt and the nut are always in an elastically tightened, engaged and locked state, thereby reducing the phenomenon of thread loosening or coming loose due to vibration, and further improving the long-term stable anti-loosening effect of the threaded connection.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shockproof mounting base for a railway signal, characterized in that: include: A support plate component (100) is connected to the side wall of a railway tunnel via a frame assembly; and a damping assembly (200), the damping assembly (200) comprising: A fixing member (201) is mounted on the supporting plate member (100), wherein an elastic region (202) is defined in the fixing member (201) and a through hole (204) is provided at an end away from the supporting plate member (100); An external movable member (206) having a first end (206a) disposed in the elastic zone (202) and a second end (206b) extending in a vertical direction and passing through the through hole (204), wherein the cross section of the external movable member (206) is smaller than the cross section of the through hole (204), the elastic zone (202) is filled with shock-absorbing glue (203) at the periphery of the first end (206a) of the external movable member (206), and a first groove (207) is provided in the external movable member (206) and is formed by extending the second end (206b) in a vertical direction; The inner movable part (209) is configured to be able to slide along the first groove (207), and has a first connecting end (209a) arranged in the first groove (207) and a second connecting end (209b) extending in a vertical direction to the outside of the first groove (207), a first elastic component (208) is arranged between the first connecting end (209a) and the end surface of the first groove (207), and the second connecting end (209b) is connected to the railway signal (10) through an assembly component (300).

2. The anti-vibration mounting base of a railway signal according to claim 1, characterized in that: The damping assembly (200) further comprises a buckle seat component (205) pre-buried in the shock-absorbing glue (203) and connected to the first end (206a) of the outer movable part (206), and the cross-section of the buckle seat component (205) is larger than the cross-section of the through hole (204).

3. The anti-vibration mounting base for a railway signal according to claim 1 or 2, characterized in that: The mounting base further comprises a hole blocking assembly, the hole blocking assembly comprising a hole blocking component (600) sleeved on the second end (206b) of the outer movable part (206), the outer edge cross section of the hole blocking component (600) being larger than the through hole cross section.

4. The anti-vibration mounting base for a railway signal according to claim 3, characterized in that: The hole blocking component (600) has: The disk body (600a) is formed by extending outwardly from the side wall of the second end (206b) of the outer movable member (206); A frame portion (600b) is formed by extending the outer edge of the disk body portion (600a) in a vertical direction, and the distance between the end surface of the frame portion (600b) and the end surface of the fixing component (201) is less than 1 mm; A plurality of balls (601) are nested on the disc body (600a) and distributed in a ring array, and the balls (601) and the end surfaces of the outer movable member (206) are in point contact.

5. The anti-vibration mounting base for a railway signal according to claim 1, characterized in that: The assembly component (300) comprises: A connecting seat body (301) is formed as a mounting carrier for a signal lamp body; The connecting disc body (302) is fixed to the second connecting end (209b) of the inner movable part (209), and the connecting disc body (302) and the connecting seat body (301) are connected by bolts and nuts.

6. The anti-vibration mounting base for a railway signal according to claim 5, characterized in that: The mounting base further comprises a second elastic member (210) sleeved on the outside of the inner movable member (209), and two ends of the second elastic member (210) in the vertical direction are in contact with the connecting disc body (302) and one end of the outer movable member (206) respectively.

7. The anti-vibration mounting base for a railway signal according to claim 5, characterized in that: The inner movable part (209) is provided with a second groove (211) extending from the second connecting end (209b) in the vertical direction, and the second groove (211) is provided with an extrusion member (212). One end of the extrusion member (212) in the vertical direction is in contact with the connecting disk body (302), and a third elastic member (213) in a compressed state is arranged between the other end and the end surface of the second groove (211).

8. The anti-vibration mounting base for a railway signal according to claim 7, characterized in that: A limiting groove is provided on the side wall of the inner movable part (209), and a limiting block capable of sliding in the limiting groove (214) is provided on the inner wall of the second groove (211).

9. The anti-vibration mounting base for a railway signal according to claim 1, characterized in that: The frame assembly comprises at least two support components (400), adjacent support components are arranged at equal intervals along the length direction of the railway tunnel, and a single support component comprises: The first carrier part (400a) extends in a vertical direction and is mounted on a side wall of a railway tunnel via a fastening assembly (500); The second carrier part (400b) is formed by extending the top end of the first carrier part (400a) along the width direction of the railway tunnel, and serves as a mounting carrier for the support plate component (100).

10. The anti-vibration mounting base for a railway signal according to claim 9, characterized in that: The fastening assembly (500) comprises: An expansion bolt (501) comprising a screw portion (501a) and an expansion portion (501b); The support sleeve (502) comprises a main body (502a) extending along the axis of the expansion bolt (501) and an outer edge (502b) formed by radially extending outward from one end of the main body (502a) adjacent to the expansion portion, and the first carrier portion (400a) is provided with a hole adapted to the main body (502a); The nut (505) is disposed on the screw portion (501a).

11. The anti-vibration mounting base for a railway signal according to claim 10, characterized in that: The fastening assembly (500) further comprises a shock-absorbing rubber ring (503) disposed on the nut (505) and on an end surface of one side of the outer edge portion (502b) adjacent to the expansion portion (501b), and a shock-absorbing rubber sleeve (504) is provided between the shock-absorbing rubber ring (503) disposed on an end surface of one side of the outer edge portion (502b) and the expansion bolt (501).

Images