Close-contact hook locking device used for operating and maintaining turnouts.

Abstract

This invention provides a close-contact hook locking device used for the operation and maintenance of railway switches. [Solution] The close-fitting hook lock device includes a close-fitting hook head 1 and a movable hook head 2. The movable hook head and the close-fitting hook head slide laterally together. The close-fitting hook head is used to lock the tongue rail, and the movable hook head is used to lock the base rail. When the movable hook head slides toward the close-fitting hook head, the tongue rail and the base rail can be brought into close contact. This has the advantage of preventing the close-fitting hook head and the movable hook head from scratching the tongue rail and the base rail.

Description

Technical Field

[0001] The present invention relates to the technical field of hook locking devices for railway switches. Specifically, the present invention relates to a close contact type hook locking device used for the operation and maintenance of switches.

Background Art

[0002] The switch system plays a very important role in the operation of trains, such as diverting and guiding the route. The switch changes the track to different line directions by a conversion device. However, due to factors such as external vibration, environmental changes, and aging of equipment, the switch is likely to loosen or shift even after being converted to a predetermined position, which may cause serious safety risks such as train derailment. Therefore, ensuring the stability and reliable locking of the switch after conversion is one of the important issues in the safe operation of trains.

[0003] The locking and unlocking of conventional switches often rely on large mechanical equipment, and it is difficult to accurately control the switch components. Therefore, problems such as poor close contact and looseness of the switch components exist in the operation process of the switch, which affects the running safety of trains. In addition, in the actual use process of the conventional close contact type switch hook locking device, when the close contact hook head and the movable hook head do not apply force to the tongue rail and the basic rail, the close contact type switch hook locking device is likely to swing. When the close contact hook head and the movable hook head are respectively locked to the tongue rail and the basic rail and apply force to the tongue rail and the basic rail, friction is likely to occur between the tongue rail and the basic rail, damaging the surface of the tongue rail, affecting the smooth running of the train, and in serious cases, it may cause safety accidents such as derailment. At the same time, the wear of the tongue rail and the basic rail is accelerated, the service life is shortened, and the maintenance cost is increased.

Summary of the Invention

Problems to be Solved by the Invention

[0004] In view of this, the present invention solves, or at least mitigates, the above-mentioned problems in the prior art by providing a tight-fitting hook lock device used for the operation and maintenance of railway switches. [Means for solving the problem]

[0005] To achieve the above objective, the present invention provides a close-contact hook locking device used for the operation and maintenance of a turnout, comprising a close-contact hook head and a movable hook head, wherein the movable hook head and the close-contact hook head slide laterally together, and the close-contact hook head is used to lock the tongue rail.

[0006] The aforementioned movable hook head is used to lock the base rail, and when the movable hook head slides toward the contact hook head, it can bring the tongue rail and the base rail into close contact.

[0007] In the close-contact hook locking device used for the operation and maintenance of the turnout described above, the close-contact hook head optionally includes a first connecting head for locking the tongue rail and a screw rod for guiding the movable hook head, wherein the screw rod is fixedly attached to the end of the first connecting head and is provided perpendicular to the first connecting head.

[0008] In the close-contact hook locking device used for operating and maintaining the turnout described above, the movable hook head optionally includes a second connecting head for locking the base rail and a movable block for sliding laterally on the screw rod, wherein the second connecting head slides in the height direction on the top of the movable block, and the top surface of the movable block can contact the bottom surface of the base rail, and when the second connecting head slides toward the movable block, the cooperation between the second connecting head and the movable block can grip the bottom of the base rail.

[0009] In the close-contact hook locking device used for operating and maintaining the above-described turnout, the movable hook head optionally further includes a support head for supporting the ground, the support head is slidably mounted to the bottom of the movable block in the height direction, the support head is fitted onto the outer wall of the bottom end of a second connecting head, and an elastic assembly is provided between the support head and the second connecting head to provide a support force, the distance between the bottom surface of the support head and the bottom surface of the movable block is greater than the distance between the bottom surface of the movable block and the ground when no force is applied to the elastic assembly, and the elastic assembly can provide a support force when the support head supports the ground.

[0010] In the close-contact hook locking device used for operating and maintaining the turnout described above, the movable hook head optionally further includes two slide rails for driving a second connecting head downward, a drive block slidable within the slide rails fixedly mounted on either side of the movable hook head, and a drive rod slidable within the moving block fixedly mounted on the bottom end of the slide rail, the drive rod used to drive the slide rails to move.

[0011] In the close-contact hook locking device used for operating and maintaining the aforementioned turnout, a handle is optionally screwed onto the screw rod, and the handle is used to control gripping the bottom of the base rail and to bring the tongue rail and the base rail into close contact. [Effects of the Invention]

[0012] The tight-fitting hook lock device used for operating and maintaining the turnout according to this invention is supported by the ground with a movable hook head, which stabilizes the tight-fitting hook head and prevents damage to the surface of the tongue rail due to rattling of the tight-fitting hook head. Furthermore, by rotating the handle, the tight-fitting hook head can be moved toward the movable hook head, pushing down the second connecting head and cooperating with the moving block to clamp the base rail and further stabilize the tight-fitting process. [Brief explanation of the drawing]

[0013] The disclosures of this invention will become clearer with reference to the drawings. These drawings are used solely for illustrative purposes and are not intended to limit the scope of protection of this invention.

[0014] [Figure 1] This is a schematic diagram of the structure when the second connecting head of the present invention is located at the highest position.

[0015] [Figure 2] This is a schematic diagram of the structure when the second connecting head of the present invention is located at its lowest position.

[0016] [Figure 3] This is a schematic diagram of the structure of the movable hook head of the present invention.

[0017] [Figure 4] This is a schematic diagram of the connection structure between the second connecting head and the support head of the present invention.

[0018] [Figure 5] This is a schematic diagram of the connection structure between the movable block and the slide rail of the present invention. [Modes for carrying out the invention]

[0019] The following clearly and completely describes the technical solution in the embodiments of the present invention. As is obvious, the described embodiments are merely some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

[0020] As shown in FIGS. 1 to 5, one representative embodiment of the present invention provides a close - type hook lock device used for the operation and maintenance of a splitter, including a close hook head 1 and a movable hook head 2. The movable hook head 2 and the close hook head 1 are slidably engaged in the horizontal direction, and the close hook head 1 is used to lock the tongue rail.

[0021] The movable hook head 2 is used to lock the basic rail. When the movable hook head 2 slides towards the close hook head 1, the tongue rail and the basic rail can be made to adhere closely.

[0022] To achieve the effect of making the tongue rail and the basic rail adhere closely, first, pass the close hook head 1 from the bottom of the basic rail, and rotate the close hook head 1 so that the hook head part of the close hook head 1 faces upward to lock the tongue rail. Then, lock the movable hook head 2 to the bottom of the basic rail. At this time, move the movable hook head 2 towards the close hook head 1 and clamp until the tongue rail and the basic rail adhere closely.

[0023] The close hook head 1 includes a first connection head 1 - 1 for locking the tongue rail and a screw rod 1 - 2 for guiding the movable hook head 2. The screw rod 1 - 2 is fixedly attached to the end of the first connection head 1 - 1 and is provided perpendicular to the first connection head 1 - 1.

[0024] To achieve the effect of enabling the close-fitting hook head 1 to lock onto the tongue rail, the close-fitting hook head 1 includes a first connecting head 1-1 for locking onto the tongue rail and a screw rod 1-2 for guiding the movable hook head 2. After the close-fitting hook head 1 passes over the bottom end of the base rail, the screw rod 1-2 is rotated to control the rotation of the first connecting head 1-1, thereby enabling it to lock onto the tongue rail. At this time, by pulling the screw rod 1-2, the first connecting head 1-1 can stably lock onto the tongue rail.

[0025] The movable hook head 2 includes a second connecting head 2-1 for locking onto the base rail and a movable block 2-2 for sliding laterally on the screw rod 1-2. The second connecting head 2-1 slides in the height direction on the top of the movable block 2-2, and the top surface of the movable block 2-2 can contact the bottom surface of the base rail. When the second connecting head 2-1 slides toward the movable block 2-2, the cooperation between the second connecting head 2-1 and the movable block 2-2 allows them to grip the bottom of the base rail.

[0026] In order to maintain stability when the close-fitting hook head 1 and the movable hook head 2 move, the movable hook head 2 includes a second connecting head 2-1 for locking onto the base rail and a movable block 2-2 for sliding laterally on the screw rod 1-2. The movable block 2-2 has a through hole that fits the cross-section of the screw rod 1-2, and both sides of the screw rod 1-2 are parallel planes 1-3. By bonding the side of the through hole to the planes 1-3, the movable block 2-2 can restrict the rotation of the screw rod 1-2, restrict the rotation of the close-fitting hook head 1, and prevent rattling that could damage the surface of the tongue rail.

[0027] To achieve the effect of the movable hook head 2 gripping the base rail, a groove 9 is made inside the second connecting head 2-1, the screw rod 1-2 is located inside the groove 9, and the plane 1-3 is in contact with the inner wall surfaces on both sides of the groove 9, making it easier for the second connecting head 2-1 to maintain stability when displaced in the height direction, the second connecting head 2-1 slides on the top of the movable block 2-2 in the height direction, and the top surface of the movable block 2-2 can come into contact with the bottom surface of the base rail, and after the contact hook head 1 locks onto the tongue rail, the top surface of the movable block 2-2 is pressed against the bottom surface of the base rail, and at this time the second connecting head 2-1 is lowered and, in cooperation with the movable block 2-2, grips the bottom of the base rail. This achieves the effect of initially gripping the tongue rail and the base rail, and makes subsequent contact between the tongue rail and the base rail easier.

[0028] The movable hook head 2 further includes a support head 2-3 for supporting the ground, the support head 2-3 being slidably mounted to the bottom of the movable block 2-2 in the height direction, the support head 2-3 being fitted onto the outer wall of the bottom end of the second connecting head 2-1, and an elastic assembly for providing support force is provided between the support head 2-3 and the second connecting head 2-1, the distance between the bottom surface of the support head 2-3 and the bottom surface of the movable block 2-2 being greater than the distance between the bottom surface of the movable block 2-2 and the ground, and the elastic assembly can provide support force when the support head 2-3 supports the ground.

[0029] To achieve the effect of maintaining the stability of the movable hook head 2, the movable hook head 2 further includes a support head 2-3 for supporting the ground, the support head 2-3 is slidably attached to the bottom of the movable block 2-2 in the height direction, and the elastic assembly includes a spring 5, and when no force is applied to the spring 5, the support head 2-3 can be moved to its lowest position, at which point the distance between the bottom end of the support head 2-3 and the bottom surface of the movable block 2-2 is greater than the distance between the movable block 2-2 and the ground, so that when the movable hook head 2 is rotated, the support head 2-3 contacts the ground and compresses the spring 5, and by utilizing the elastic force of the spring 5, the top surface of the movable block 2-2 can come into contact with the bottom surface of the base rail, at which point the bottom surface of the base rail, the top surface of the movable block 2-2 and the ground are supported by the spring 5, and the movable hook head 2 can maintain a state of receiving the bottom surface of the base rail.

[0030] To achieve the effect of enabling the second connecting head 2-1 to move stably in the height direction, slide grooves 8 are provided on both sides of the second connecting head 2-1, a first slider 6 is fixedly attached to either of the inner walls on both sides of the moving block 2-2 so as to be slidable inside the slide groove 8, and a second slider 7 is fixedly attached to either of the inner walls on both sides of the top of the support head 2-3 so as to be slidable inside the slide groove 8, the second slider 7 is located below the first slider 6, which limits the highest position that the support head 2-3 can rise to, prevents the support head 2-3 and the second connecting head 2-1 from detaching from the moving block 2-2, and by utilizing the cooperation of the first slider 6, the second slider 7 and the slide groove 8, the second connecting head 2-1 can move stably in the height direction.

[0031] The movable hook head 2 further includes two slide rails 3 for driving a second connecting head 2-1 downward, and a drive block 2-4, which is slidable within the slide rails 3, is fixedly mounted on either side of the movable hook head 2, and a drive rod 3-1, which is slidable within the moving block 2-2, is fixedly mounted on the bottom end of the slide rail 3, and the drive rod 3-1 is used to drive the slide rails 3 to move.

[0032] In order to achieve the effect of clamping the base rail by the second connecting head 2-1 cooperating with the movable block 2-2, the movable hook head 2 further includes two slide rails 3 for driving the second connecting head 2-1 downward, and a drive block 2-4 that can slide within the slide rails 3 is fixedly attached to either side of the movable hook head 2, and a drive rod 3-1 that can slide within the movable block 2-2 is fixedly attached to the bottom end of the slide rail 3, and the drive rod 3-1 is used to drive the slide rail 3 to move, and the drive rod 3-1 moves within the movable block 2-2 and drives the slide rail 3 to move, at which time the drive block 2-4 is restricted to the slide rail 3, and the drive block 2-4 can slide within the slide rail 3, lowering the second connecting head 2-1 and cooperating with the movable block 2-2 to clamp the bottom of the base rail and have a pre-nip and fixing effect.

[0033] A handle 4 is screwed onto a threaded rod 1-2, and the handle 4 is used to control the gripping of the bottom of the base rail and to ensure close contact between the tongue rail and the base rail.

[0034] To achieve a prenip effect with respect to the base rail, a handle 4 is screwed onto a threaded rod 1-2. By rotating the handle 4, the handle 4 is moved toward and into contact with the drive rod 3-1. At this time, the handle 4 is continued to rotate, driving the drive rod 3-1 to move, and the second connecting head 2-1 and the moving block 2-2 work together to achieve prenip with respect to the base rail.

[0035] To achieve the effect of tightly securing the tongue rail and the base rail, the handle 4 is continued to rotate, and at this time the bottom of the base rail is gripped, so the handle 4 can no longer move toward the securing hook head 1. As a result, the securing hook head 1 can only move toward the handle 4, and the securing hook head 1 and the movable hook head 2 work together to tightly secure the tongue rail and the base rail.

[0036] The technical scope of this invention is not limited to what is described in the above specification. Those skilled in the art can make various modifications and alterations to the above embodiments as long as they do not deviate from the technical concept of this invention, and all such modifications and alterations fall within the scope of this invention. [Explanation of Symbols]

[0037] 1. Close-fitting hook head 1-1 First connecting head 1-2 Screw Rod 1-3 plane 2 Movable hook heads 2-1 Second connecting head 2-2 Moving Blocks 2-3 Support head 2-4 Drive Block 3 slide rails 3-1 Drive Rod 4 handles 5 springs 6. First slider 7. Second slider 8 slide grooves 9 grooves

Claims

1. A close-contact hook locking device used for the operation and maintenance of a turnout, comprising a close-contact hook head (1) and a movable hook head (2), wherein the movable hook head (2) and the close-contact hook head (1) slide laterally together, and the close-contact hook head (1) is used to lock the tongue rail. The movable hook head (2) is used to lock the base rail, and when the movable hook head (2) slides toward the contact hook head (1), the tongue rail and the base rail can be brought into close contact, characterized in that a contact-type hook locking device used for the operation and maintenance of a turnout is provided.

2. The close-contact hook locking device used for operating and maintaining a turnout according to claim 1, wherein the close-contact hook head (1) includes a first connecting head (1-1) for locking a tongue rail and a screw rod (1-2) for guiding the movable hook head (2), the screw rod (1-2) is fixedly attached to the end of the first connecting head (1-1) and is provided perpendicular to the first connecting head (1-1).

3. The movable hook head (2) includes a second connecting head (2-1) for locking the base rail and a movable block (2-2) for sliding laterally on the screw rod (1-2), wherein the second connecting head (2-1) slides in the height direction on the top of the movable block (2-2), the top surface of the movable block (2-2) can contact the bottom surface of the base rail, and when the second connecting head (2-1) slides toward the movable block (2-2), the second connecting head (2-1) and the movable block (2-2) cooperate to grip the bottom of the base rail, characterized in that the close-contact hook locking device used for operating and maintaining a turnout according to claim 2.

4. The movable hook head (2) further includes a support head (2-3) for supporting the ground, the support head (2-3) is slidably mounted to the bottom of the movable block (2-2) in the height direction, the support head (2-3) is fitted onto the outer wall of the bottom end of the second connecting head (2-1), and an elastic assembly for providing support force is provided between the support head (2-3) and the second connecting head (2-1), the distance between the bottom surface of the support head (2-3) and the bottom surface of the movable block (2-2) is greater than the distance between the bottom surface of the movable block (2-2) and the ground when no force is applied to the elastic assembly, and the elastic assembly can provide support force when the support head (2-3) supports the ground, the close-fitting hook lock device used for operating and maintaining a turnout according to claim 3.

5. The close-contact hook lock device for operation and maintenance of a turnout according to claim 4, further comprising two slide rails (3) for driving a movable hook head (2) to lower a second connecting head (2-1), a drive block (2-4) slidable within the slide rails (3) fixedly attached to either side of the movable hook head (2), a drive rod (3-1) slidable within a movable block (2-2) fixedly attached to the bottom end of the slide rails (3), and the drive rod (3-1) used to drive the slide rails (3) to move.

6. A tight-fitting hook lock device for operating and maintaining a turnout according to claim 5, characterized in that a handle (4) is screwed onto the screw rod (1-2), and the handle (4) is used to control gripping the bottom of the base rail and bringing the tongue rail and the base rail into close contact.

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