A hook lock for a tramway switch

Abstract

The invention discloses a hook lock for a tramway switch, which includes a close-fitting hook lock and a repelling hook lock for an integral point rail seat, wherein the front end of the point rail seat is respectively formed with a rail-blocking side and a basic rail side on both sides of the rail opening; the close-fitting hook lock includes a first close-fitting abutment member abutting with the rail-blocking side, a second close-fitting abutment member abutting with the basic rail side, and a close-fitting tension adjustment screw connecting the first close-fitting abutment member and the second close-fitting abutment member, and in a close-fitting state, the front end of the point rail is pressed against the basic rail side through the second close-fitting abutment member; the repelling hook lock includes a first repelling abutment member abutting with the rail-blocking side, a second repelling abutment member abutting with the basic rail side, and a repelling tension adjustment screw connecting the first repelling abutment member and the second repelling abutment member, and in a repelling state, the front end of the point rail is pressed against the rail-blocking side through the first repelling abutment member. The hook lock of the invention has a simple structure, is easy to operate, and is easy to implement.

Description

Technical Field

[0001] The invention relates to the technical field of tramway switches, and in particular to a hook lock which can provide a switch locking or repelling function and is suitable for tramway switches. Background Art

[0002] A turnout is an essential device for a train to switch from one track to another. It is an important component of rail transit. It is mainly composed of three units: a switch, a connecting part, a frog and a guard rail. The switch includes a point rail, a base rail and a switch hook lock. When a train is to switch from track A to track B, the switch hook lock is first operated to move the position of the point rail so that the point rail is closely attached to one side of the base rail and the point rail is separated from the other side of the base rail. In this way, the rail car can switch from track A to track B. When a long track change is required, a switch hook lock is needed to tightly fix the point rail in the switch and the base rail together to prevent accidents caused by human or misoperation of the switch.

[0003] Among them, the turnout hook lock is a device that manually fastens the turnout point rail (movable heart rail) and the base rail (wing rail) together, fixes the repelling point rail at a certain position, locks the route, and prevents the turnout from being manually or mistakenly moved. At present, electric switches are generally used to move the point rail (movable heart rail) to achieve the close contact or repulsion between the point rail (movable heart rail) and the base rail (wing rail). However, sometimes, due to the lack of opening in a certain direction of the turnout, in order to reduce costs and to lock the turnout in a certain direction, a manual hook lock is used instead of an electric switch. The existing common structure of the manual hook lock includes three types: movable heart type, close contact type and repulsion type, such as the "a kind of turnout hook lock for rail transit" with Chinese patent number CN110696875B, which is close to or repulsive to the ordinary railway turnout switch through the left fixed connecting rod 8a and the right fixed connecting rod 8b on the locking screw 4. However, most tram turnouts use integral alloy steel switches, in which the base rail and the lower base are an integral structure, called a pointed rail seat. The hook lock using the above-mentioned existing ordinary structure cannot meet the locking or repulsion function of this type of switch, so it is necessary to develop a new type of turnout hook lock. Summary of the invention

[0004] In order to solve the defects of the above-mentioned technology, the present invention provides a hook lock device which can provide the locking or repelling function of the switch and is suitable for the switch of the tramway.

[0005] The technical solution adopted by the present invention to achieve the above technical effects is:

[0006] A hook lock for a tramway switch, comprising a close-fitting hook lock and a repelling hook lock for adapting to an integral point rail seat for a tramway switch, wherein the front end of the point rail seat of the point rail seat is respectively formed with a blocking rail side and a basic rail side on both sides of a rail opening, and the point rail is adapted in the point rail seat;

[0007] The close-fitting hook lock device comprises a first close-fitting abutment member abutting against the side of the baffle rail, a second close-fitting abutment member for abutting the front end of the point rail of the point rail against the side of the base rail, and a close-fitting tension adjustment screw connecting the first close-fitting abutment member and the second close-fitting abutment member. In a close-fitting state, the front end of the point rail of the point rail abuts against the side of the base rail via the second close-fitting abutment member.

[0008] The repulsion type hook lock includes a first repulsion type abutment member for abutting the front end of the point rail of the point rail against the side of the blocking rail, a second repulsion type abutment member abutting against the side of the basic rail, and a repulsion type tension adjustment screw connecting the first repulsion type abutment member and the second repulsion type abutment member. In the repulsion state, the front end of the point rail of the point rail abuts against the side of the blocking rail via the first repulsion type abutment member.

[0009] Preferably, in the above-mentioned hook lock for tram switch, the first close-fitting abutment member is a long block structure, with a screw hole with an internal thread in the middle, and the close-fitting tension adjustment screw includes a threaded section close to the nut and a connecting section at the end, the surface of the connecting section is a smooth surface without threads, and a through pin hole is provided on the section body, the close-fitting tension adjustment screw passes through the screw hole, and its threaded section is threadedly connected to the screw hole.

[0010] Preferably, in the above-mentioned hook lock for tram track switch, the second close-fitting abutment member is provided with a close-fitting connecting cap on the inner end face relative to the first close-fitting abutment member, and a countersunk hole adapted to the connecting section is opened on the end face of the close-fitting connecting cap, and the close-fitting connecting cap is formed with a plurality of open "U"-shaped grooves distributed at equal intervals along the circumferential side of the hole of the countersunk hole, and the opposite "U"-shaped grooves are located at the two ends of the diameter direction of the countersunk hole. After the connecting section abuts against the countersunk hole of the close-fitting connecting cap, the two ends of the pin hole on the connecting section are aligned and matched with the notches of one of the opposite "U"-shaped grooves and are locked by an open pin, and the second close-fitting abutment member is formed with a flat cylindrical close-fitting anti-deflection block on the outer end face facing away from the first close-fitting abutment member.

[0011] Preferably, in the above-mentioned hook lock for tram switch, the first close-fitting abutment piece is used to abut against the inner wall of the baffle rail side, and the front end of the point rail seat of the point rail seat is provided with two installation openings penetrating this side on the baffle rail side, and the front end of the point rail seat of the point rail seat is provided with grooves corresponding to the two installation openings on the inner wall surfaces of the baffle rail side and the basic rail side, respectively, and the bottom of the front end of the point rail of the point rail is provided with two clamping parts corresponding to the two right grooves, and the clamping parts are provided with a through electrical interface, and when the front end of the point rail is in close contact with the basic rail side, the clamping parts are adapted in the corresponding right grooves, and the close-fitting anti-deflection block on the second close-fitting abutment piece is adapted in the electrical interface, and the close-fitting tension adjustment screw is fastened to the first close-fitting abutment piece and the second close-fitting abutment piece through the installation openings.

[0012] Preferably, in the above-mentioned hook lock for tram track switch, the first repulsion type abutment member and the second repulsion type abutment member are both long block structures, a screw hole with an internal thread is opened in the middle of the first repulsion type abutment member, and the repulsion type tension adjustment screw is fastened to the second repulsion type abutment member through the screw hole on the first repulsion type abutment member.

[0013] Preferably, in the above-mentioned hook lock for tram track switch, the first repulsion type abutment piece is formed with a repulsion type anti-deflection block at the screw hole in the middle part of the first repulsion type abutment piece on the outer end surface facing away from the second repulsion type abutment piece, and the repulsion type anti-deflection block is formed with an external screw hole corresponding to and matching the screw hole in the middle part of the first repulsion type abutment piece.

[0014] Preferably, in the above-mentioned hook lock for tramway switch, the second repulsion type abutment piece is formed with a repulsion type connection cap on the end face facing the first repulsion type abutment piece, and the front end of the repulsion type tension adjustment screw abuts against the repulsion type connection cap.

[0015] Preferably, the above-mentioned hook lock for tramway switch further comprises an integrated close-fitting hook lock composed of two of the close-fitting hook locks, and an integrated repulsive hook lock composed of two of the repulsive hook locks.

[0016] The beneficial effects of the present invention are as follows: the hook lock for a tram switch of the present invention has a simple structure and is easy to operate. It can make the point rail seat and the point rail on the integral alloy steel switch used in the tram switch close to or repel each other, and can maintain the stability of the base rail and the point rail in a close contact state or a repelling state. The assembly and disassembly operations are simple and easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional structural diagram of a close-fitting hook lock device according to an embodiment of the present invention;

[0018] Figure 2 A top view of a close-fitting hook lock device according to an embodiment of the present invention;

[0019] Figure 3 A top view of the close-fitting tension adjustment screw according to an embodiment of the present invention;

[0020] Figure 4 A three-dimensional structural diagram of a pointed rail seat according to an embodiment of the present invention;

[0021] Figure 5 A three-dimensional structural diagram of a close-fitting hook lock device adapted to a point rail according to an embodiment of the present invention;

[0022] Figure 6 It is a three-dimensional diagram of a close-fitting hook lock device according to one embodiment of the present invention adapted to an integral switch for a tramway switch in a close-fitting state;

[0023] Figure 7 It is a three-dimensional view of the close-fitting hook lock device according to one embodiment of the present invention adapted to the integrated switch for a tramway switch in a close-fitting state from another perspective;

[0024] Figure 8 for Figure 4 The local enlarged structural diagram of the "Ⅰ" part;

[0025] Fig. 9 for Figure 5 The local enlarged structural diagram of the "Ⅱ" part;

[0026] Fig.10 for Figure 6 A partial enlarged structural diagram of part "III" in the figure;

[0027] Fig.11 It is a cross-sectional view of the close-fitting hook lock device working in a close-fitting state;

[0028] Fig.12 A three-dimensional structural diagram of a repulsion type hook lock device according to another embodiment of the present invention;

[0029] Fig.13 A three-dimensional structural diagram of a repulsion type hook lock device according to another embodiment of the present invention from another viewing angle;

[0030] Fig.14 for Fig.12 A stereoscopic diagram of the repulsion type hook lock device adapted to the integrated switch for tramway switches in the repulsion state;

[0031] Fig.15 It is a cross-sectional view of the repulsion type hook lock device working in the repulsion state;

[0032] Fig.16 It is a three-dimensional structural diagram of an integrated close-fitting hook lock;

[0033] Fig.17 It is a three-dimensional structural diagram of an integrated repulsion type hook lock. DETAILED DESCRIPTION

[0034] In order to further understand the present invention, the present invention is further described below with reference to the accompanying drawings and specific embodiments:

[0035] In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 limiting the present invention. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] See also Figure 4 , Figure 5 , Figure 8 and Fig. 9 As shown in the figure, the point rail seat 100 and the point rail 200 in the integral alloy steel switch used in the tramway turnout are shown. Specifically, the point rail seat 100 is an integral structure formed by the base rail and the lower base. The front end 110 of the point rail seat 100 is formed with a rail blocking side 120 and a base rail side 130 on both sides of the track opening. The point rail 200 is adapted to the point rail seat 100, and the track is opened on the corresponding side by adjusting the lock hook. Please refer to Figure 1 , Figure 2 , Figure 3 , Fig.12 as well as Fig.13 As shown in the figure, an embodiment of the present invention proposes a hook lock for a tramway switch, including a close-fitting hook lock 1 and a repulsive hook lock 2 for adapting to an integral point rail seat 100 for a tramway switch.

[0038] Among them, Figure 1 , Figure 2 , Figure 6 , Figure 7 , Fig.10 , Fig.11 As shown, the close fitting hook lock 1 comprises a first close fitting abutment member 11 abutting against the side of the baffle rail 120, a second close fitting abutment member 12 for abutting the front end 210 of the point rail 200 against the side of the base rail 130, and a close fitting tension adjustment screw 13 connecting the first close fitting abutment member 11 and the second close fitting abutment member 12. In the close fitting state, the front end 210 of the point rail 200 is abutted against the side of the base rail 130 via the second close fitting abutment member 12.

[0039] Among them, Fig.12 , Fig.13 , Fig.14 as well as Fig.15 As shown, the repulsive hook lock 2 comprises a first repulsive abutment member 21 for abutting the front end 210 of the point rail 200 against the side rail 120, a second repulsive abutment member 22 abutting and cooperating with the base rail side 130, and a repulsive tension adjustment screw 23 connecting the first repulsive abutment member 21 and the second repulsive abutment member 22. In the repulsive state, the front end 210 of the point rail 200 abuts against the side rail 120 via the first repulsive abutment member 21, wherein a certain gap exists between the front end 210 of the point rail 200 and the side rail 120.

[0040] Further, in a preferred embodiment of the present invention, Figure 1 , Figure 2 As shown, the first close-fitting abutment member 11 is a long block structure, and a screw hole 111 with an internal thread is opened in the middle. Figure 3 As shown, the close fitting tension adjustment screw 13 includes a threaded section 131 close to the nut and a connecting section 132 at the end. The connecting section 132 has a smooth surface without threads, and a through pin hole 133 is provided on the section body. The close fitting tension adjustment screw 13 passes through the screw connection hole 111, and the threaded section 131 is threadedly connected to the screw connection hole 111.

[0041] Further, in a preferred embodiment of the present invention, Figure 1 As shown, the second close-fitting abutment 12 is provided with a close-fitting connection cap 121 on the inner end face relative to the first close-fitting abutment 11, and a countersunk hole adapted to the connection section 132 is provided on the end face of the close-fitting connection cap 121, and a plurality of open "U"-shaped grooves 1211 distributed at equal intervals are formed on the peripheral side of the hole of the countersunk hole of the close-fitting connection cap 121. Among them, the opposite "U"-shaped grooves 1211 are located at both ends of the diameter direction of the countersunk hole. After the connection section 132 abuts against the countersunk hole of the close-fitting connection cap 121, the two ends of the pin hole 133 on the connection section 132 are aligned with the notch of one of the opposite "U"-shaped grooves 1211, and are locked by a cotter pin 14. As shown in FIG. Figure 1 and Figure 2As shown, the second close-fitting abutment 12 is formed with a flat cylindrical close-fitting anti-deflection block 15 on the outer end surface facing away from the first close-fitting abutment 11. With the cooperation of the close-fitting anti-deflection block 15, the second close-fitting abutment 12 can be quickly and conveniently assembled and fixed to the inner side of the basic rail side 130 of the front end 110 of the point rail seat 100.

[0042] Further, in a preferred embodiment of the present invention, Figure 6 , Figure 7 , Fig.10 as well as Fig.11 As shown, the first close-fitting abutment member 11 is used to abut against the inner wall of the rail stop side 120, and the front end 110 of the point rail seat 100 is provided with two installation openings 140 penetrating the side on the rail stop side 120. The front end 110 of the point rail seat 100 is provided with grooves 150 corresponding to the two installation openings 140 on the inner wall surfaces of the rail stop side 120 and the base rail side 130, respectively, and the bottom of the front end 210 of the point rail 200 is provided with two clamping parts 220 corresponding to the two grooves 150 on the right side, and the clamping parts 220 are provided with a penetrating electrical service interface 230. When the front end 210 of the pointed rail is in close contact with the basic rail side 130, the clamping portion 220 is adapted in the corresponding right groove 150, the close-fitting anti-deflection block 15 on the second close-fitting abutment 12 is adapted in the electrical service interface 230, and the close-fitting tension adjustment screw 13 is respectively fastened to the first close-fitting abutment 11 and the second close-fitting abutment 12 through the mounting port 140.

[0043] exist Figure 6 , Figure 7 , Fig.11 In the state shown, the front end 210 of the point rail 200 is tightly attached to the B-track side of the point rail seat 100, that is, the basic rail side 130. At this time, the A-track of the point rail seat 100 is in an open state, connected to the track opening of the front end 110 of the point rail seat 100, and the B-track of the point rail seat 100 is locked by the front end 210 of the point rail 200 in the tightly attached state. At this time, the B-track of the point rail seat 100 is disconnected from the track opening of the front end 110 of the point rail seat 100.

[0044] Further, in a preferred embodiment of the present invention, Fig.12 , Fig.13 , Fig.14 as well as Fig.15As shown, the first repulsive abutment 21 and the second repulsive abutment 22 of the repulsive hook lock 2 are both long block structures, wherein a screw hole with internal threads is opened in the middle of the first repulsive abutment 21, and the repulsive tension adjustment screw 23 is fastened to the second repulsive abutment 22 through the screw hole on the first repulsive abutment 21. The first repulsive abutment 21 is formed with a repulsive anti-deflection block 24 at the screw hole in the middle of the first repulsive abutment 21 on the outer end surface facing away from the second repulsive abutment 22, and the repulsive anti-deflection block 24 is formed with an external screw hole corresponding to the screw hole in the middle of the first repulsive abutment 21. The second repulsive abutment member 22 is formed with a repulsive connection cap 221 on the end surface facing the first repulsive abutment member 21, and the front end of the repulsive tension adjustment screw 23 abuts against the repulsive connection cap 221. In the embodiment of the repulsive hook lock, the structure of the repulsive tension adjustment screw 23 is the same as the structure of the close-fitting tension adjustment screw 13 in the close-fitting hook lock 1, and similarly, the structure of the repulsive connection cap 221 in the repulsive hook lock is the same as the structure of the close-fitting connection cap 121 in the close-fitting hook lock 1.

[0045] exist Fig.14 , Fig.15 In the state shown, the front end 210 of the point rail 200 is repelled from the B-track side of the point rail seat 100 and is close to the A-track side of the point rail seat 100, that is, the side of the stop rail side 120. At this time, the B-track of the point rail seat 100 is in an open state and is connected to the track opening of the front end 110 of the point rail seat 100. The A-track of the point rail seat 100 is locked by the front end 210 of the point rail 200 in the repelled state, and at this time, the A-track of the point rail seat 100 is disconnected from the track opening of the front end 110 of the point rail seat 100.

[0046] Further, in a preferred embodiment of the present invention, Fig.16 , Fig.17 As shown, it also includes an integrated close-fitting hook lock device 1a composed of two close-fitting hook lock devices 1, and an integrated repelling hook lock device 2a composed of two repelling hook lock devices 2. Fig.16 As shown, the abutment member of the integrated close-fitting hook lock 1a opposite to the rail side 120 is formed by the first close-fitting abutment members 11 of the two close-fitting hook locks 1, forming a close-fitting hook lock with a double-link structure. Fig.17 As shown, the abutment piece opposite to the blocking rail side 120 in the integrated repulsive hook lock 2a is integrally composed of the first repulsive abutment pieces 21 of the two repulsive hook locks 2, and the abutment piece opposite to the basic rail side 130 in the integrated repulsive hook lock 2a is integrally composed of the second repulsive abutment pieces 22 of the two repulsive hook locks 2, forming a double-structured repulsive hook lock.

[0047] In the above embodiment of the present invention, the diameter of the close-fitting tension adjustment screw 13 and the repelling tension adjustment screw 23 are both M24, and the structural strength is high. In order to improve the convenience of assembly operation, the inner wall of the countersunk hole opened on the end surface of the close-fitting connection cap 121 and the end surface of the repelling connection cap 221 are both smooth hole walls without internal threads.

[0048] In summary, the hook lock for tram switch of the present invention has a simple structure and is easy to operate. It can make the point rail seat and the point rail on the integral alloy steel switch used in the tram switch close to or repel each other, and can maintain the stability of the base rail and the point rail in a close contact state or a repelled state. The assembly and disassembly operations are simple and easy to implement.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected, and the scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A hook lock for a tramway switch, characterized in that: The invention comprises a close-fitting hook lock (1) and a repelling hook lock (2) for adapting to an integral point rail seat (100) for a tramway switch, wherein a point rail seat front end (110) of the point rail seat (100) is respectively formed with a blocking rail side (120) and a basic rail side (130) on both sides of a rail opening, and a point rail (200) is adapted in the point rail seat (100); The close-fitting hook lock (1) comprises a first close-fitting abutment member (11) abutting against the side of the baffle rail (120), a second close-fitting abutment member (12) for abutting the front end (210) of the point rail (200) against the side of the base rail (130), and a close-fitting tension adjustment screw (13) connecting the first close-fitting abutment member (11) and the second close-fitting abutment member (12). In a close-fitting state, the front end (210) of the point rail (200) abuts against the side of the base rail (130) via the second close-fitting abutment member (12). The repulsive hook lock (2) comprises a first repulsive abutment member (21) for abutting the front end (210) of the pointed rail (200) against the side of the blocking rail (120), a second repulsive abutment member (22) abutting against the side of the base rail (130), and a repulsive tension adjustment screw (23) connecting the first repulsive abutment member (21) and the second repulsive abutment member (22). In the repulsive state, the front end (210) of the pointed rail (200) abuts against the side of the blocking rail (120) via the first repulsive abutment member (21).

2. The hook lock for a tramway switch according to claim 1, characterized in that: The first close-fitting abutment member (11) is a long block-shaped structure, with a screw hole (111) having an internal thread in the middle. The close-fitting tension adjustment screw (13) comprises a threaded section (131) close to the nut and a connecting section (132) at the end. The surface of the connecting section (132) is a smooth surface without threads, and a through pin hole (133) is provided on the section body. The close-fitting tension adjustment screw (13) passes through the screw hole (111), and its threaded section (131) is threadedly connected to the screw hole (111).

3. The hook lock for a tramway switch according to claim 2, characterized in that: The second close-fitting abutment member (12) is provided with a close-fitting connection cap (121) on the inner end face relative to the first close-fitting abutment member (11); a countersunk hole adapted to the connection section (132) is provided on the end face of the close-fitting connection cap (121); the close-fitting connection cap (121) is formed with a plurality of open "U"-shaped grooves (1211) distributed at equal intervals along the circumference of the countersunk hole, and the "U"-shaped grooves (1211) are located at the diameter of the countersunk hole. The two ends of the direction are formed, after the connecting section (132) abuts against the countersunk hole of the close-fitting connecting cap (121), the two ends of the pin hole (133) on the connecting section (132) are aligned with the notches of one of the opposite "U"-shaped grooves (1211) and locked by a cotter pin (14), and the second close-fitting abutment member (12) is formed with a flat cylindrical close-fitting anti-deflection block (15) on the outer end surface facing away from the first close-fitting abutment member (11).

4. The hook lock for a tramway switch according to claim 1, characterized in that: The first close-fitting abutment member (11) is used to abut against the inner wall of the rail stop side (120); the front end (110) of the point rail seat (100) is provided with two installation openings (140) penetrating the side on the rail stop side (120); the front end (110) of the point rail seat (100) is provided with grooves (150) corresponding to the two installation openings (140) on the inner wall surfaces of the rail stop side (120) and the base rail side (130); the bottom of the front end (210) of the point rail (200) is provided with two grooves (150) corresponding to the two grooves (150) on the right side. A clamping portion (220) is provided with a through electrical service interface (230). When the front end (210) of the pointed rail is in close contact with the side (130) of the base rail, the clamping portion (220) is adapted in the corresponding right groove (150), and the close-fitting anti-deflection clamping block (15) on the second close-fitting abutment (12) is adapted in the electrical service interface (230). The close-fitting tension adjustment screw (13) is respectively fastened to the first close-fitting abutment (11) and the second close-fitting abutment (12) through the mounting opening (140).

5. The hook lock for a tramway switch according to claim 1, characterized in that: The first repulsive abutment member (21) and the second repulsive abutment member (22) are both long block structures. A screw hole with an internal thread is opened in the middle of the first repulsive abutment member (21). The repulsive tension adjustment screw rod (23) is fastened to the second repulsive abutment member (22) through the screw hole on the first repulsive abutment member (21).

6. The hook lock for a tramway switch according to claim 5, characterized in that: The first repulsive abutment member (21) is formed with a repulsive anti-deflection block (24) at the screw hole in the middle of the first repulsive abutment member (21) on its outer end surface facing away from the second repulsive abutment member (22), and the repulsive anti-deflection block (24) is formed with an external screw hole corresponding to the screw hole in the middle of the first repulsive abutment member (21).

7. The hook lock for a tramway switch according to claim 5, characterized in that: The second repulsive abutment member (22) is formed with a repulsive connection cap (221) on the end surface facing the first repulsive abutment member (21), and the front end of the repulsive tension adjustment screw (23) abuts against the repulsive connection cap (221).

8. The hook lock for a tramway switch according to claim 1, characterized in that: It also includes an integrated close-fitting hook lock (1a) composed of two close-fitting hook locks (1), and an integrated repulsive hook lock (2a) composed of two repulsive hook locks (2).

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