Rail clamp device

CN224754041UActive Publication Date: 2026-09-15CHINA RAILWAY 19TH BUREAU GRP EAST CHINA ENG CO LTD
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Patent Information

Application Number
CN202522183578.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-15
Publication Date
2026-09-15
Estimated Expiration
2035-10-15

AI Technical Summary

Benefits of technology

[0014]The rail clamping device provided by this utility model has a first clamping plate and a second clamping plate that can be adapted to the structure of the rail, making it easier to clamp the rail. The adjusting component can adjust the hinge angle of the first clamping plate and the second clamping plate, which can accommodate rails of different widths and clamp the rail tightly. Compared with the fixing of straps, it is more reliable and the rail is less likely to slip, and the weld positioning is accurate. The locking component can lock the hinge angle of the first clamping plate and the second clamping plate to prevent the rail clamping device from detaching from the rail due to the failure of the connecting function of the adjusting component, thus playing a safety role and enhancing safety. When lifting, the lifting hook can be attached to the lifting rod, avoiding the need to install additional lifting straps or steel chains and improving lifting efficiency.

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Abstract

The utility model relates to the clamping and hoisting technical field of steel rail, provide a kind of rail clamping device, comprising: two first clamping plates, relative setting along first direction;First support rod, setting between two first clamping plates;Two second clamping plates, relative setting along first direction, and the side of second clamping plate is hinged with the side of first clamping plate;Second support rod, setting between two second clamping plates;Adjusting member, detachably connected in first support rod and second support rod, for adjusting the hinge angle of first clamping plate and second clamping plate;Locking member, setting on first clamping plate and second clamping plate, for locking the hinge angle of first clamping plate and second clamping plate.The adjusting member of the utility model can adjust the hinge angle of first clamping plate and second clamping plate, compared with bandage fixed firm, steel rail is not prone to sliding;Locking member can lock the hinge angle of first clamping plate and second clamping plate, play the role of insurance, and enhanced security.
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Description

Technical Field

[0001] This utility model relates to the field of rail clamping and hoisting technology, and in particular to a rail clamping device. Background Technology

[0002] Currently, some rails require welding before use, and hoisting is also necessary after welding. The traditional method involves using slings or external pressure to bind the rails together during welding. This method may result in insecure rail fixation leading to weld misalignment. After welding, slings or steel chains are used to bind the rails during hoisting, but this adds an extra step, leading to inefficiency and potential safety risks if the fixation is not secure. Utility Model Content

[0003] This utility model provides a rail clamping device to solve technical problems such as unreliable rail clamping leading to welding misalignment and low efficiency of rail hoisting after welding.

[0004] This utility model provides a rail clamping device, comprising: Two first clamping plates are arranged opposite each other along a first direction; The first support rod is disposed between the two first clamping plates; Two second clamping plates are arranged opposite each other along the first direction, and one side of the second clamping plate is hinged to one side of the first clamping plate; The second support rod is disposed between the two second clamping plates; An adjusting component, detachably connected to the first support rod and the second support rod, is used to adjust the hinge angle of the first clamping plate and the second clamping plate; A locking element is disposed on the first clamping plate and the second clamping plate, for locking the hinge angle of the first clamping plate and the second clamping plate.

[0005] According to the rail clamping device provided by this utility model, the adjusting member includes: The screw passes through the first support rod and the second support rod, and is threadedly connected to the first support rod and the second support rod respectively; A handle is provided at the insertion end of the screw.

[0006] According to the rail clamping device provided by this utility model, it further includes: A limiting element is provided at the protruding end of the screw to limit the axial displacement of the screw.

[0007] According to the rail clamping device provided by this utility model, the locking element includes: The hook is located on the side of the first clamp plate opposite to the first support rod; A locking rod, one end of which is hinged to the side of the second clamping plate opposite to the second support rod, and the other end of which is disposed on the hook.

[0008] According to the rail clamping device provided by this utility model, the locking rod includes: The first rod has a hook at one end for attaching to the hook buckle, and a thread at the other end of the first rod. The second rod has one end threadedly connected to the first rod, and the other end hinged to the second clamping plate.

[0009] According to the rail clamping device provided by this utility model, it further includes: The lifting rod has its two ends respectively set at the hinge points of the first clamping plate and the second clamping plate, and is used to attach the lifting hook.

[0010] According to the rail clamping device provided by this utility model, it further includes: A reinforcing plate is disposed between the two first clamping plates and between the two second clamping plates.

[0011] According to the present invention, a rail clamping device is provided in which the first clamping plate is bent on the side away from the hinge side to form a first clamping hook; The second clamping plate is bent on the side away from the hinge side to form a second clamping hook; The first and second clamps are arranged opposite to each other.

[0012] According to the rail clamping device provided by this utility model, it further includes: An abutment plate, disposed on the first clamp and / or the second clamp, is used to abut against the clamped track.

[0013] According to the rail clamping device provided by this utility model, it further includes: An anti-slip pad is provided on the side of the abutment plate that contacts the clamped track.

[0014] The rail clamping device provided by this utility model has a first clamping plate and a second clamping plate that can be adapted to the structure of the rail, making it easier to clamp the rail. The adjusting component can adjust the hinge angle of the first clamping plate and the second clamping plate, which can accommodate rails of different widths and clamp the rail tightly. Compared with the fixing of straps, it is more reliable and the rail is less likely to slip, and the weld positioning is accurate. The locking component can lock the hinge angle of the first clamping plate and the second clamping plate to prevent the rail clamping device from detaching from the rail due to the failure of the connecting function of the adjusting component, thus playing a safety role and enhancing safety. When lifting, the lifting hook can be attached to the lifting rod, avoiding the need to install additional lifting straps or steel chains and improving lifting efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of an embodiment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of an embodiment of the present invention. Figure 2 .

[0017] Figure label: 11. First clamping plate; 12. First support rod; 21. Second clamping plate; 22. Second support rod; 3. Adjusting component; 31. Screw; 32. Handle; 41. Hook and latch; 42. Locking bar; 421. First bar; 422. Second bar; 5. Limiting component; 6. Lifting rod; 7. Reinforcing plate; 8. Abutment plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] The following is combined with Figures 1-2 This invention describes a rail clamping device according to an embodiment of the present invention.

[0020] Figure 1 This is a schematic diagram of an embodiment of the present invention. Figure 1 , Figure 2 This is a schematic diagram of an embodiment of the present invention. Figure 2 ,like Figure 1 and Figure 2 As shown, this utility model embodiment provides a rail clamping device, including: a first clamping plate 11, a first support rod 12, a second clamping plate 21, a second support rod 22, an adjusting member 3, and a locking member; Two first clamping plates 11 are arranged opposite each other along a first direction, wherein the first direction is the length direction of the rail; a first support rod 12 is arranged between the two first clamping plates 11; two second clamping plates 21 are arranged opposite each other along the first direction, and one side of the second clamping plate 21 is hinged to one side of the first clamping plate 11; a second support rod 22 is arranged between the two second clamping plates 21. The adjusting component 3 is detachably connected to the first support rod 12 and the second support rod 22 to adjust the hinge angle of the first clamping plate 11 and the second clamping plate 21, which can accommodate rails of different widths and clamp the rails tightly. Compared with the binding strap, it is more reliable and the rails are less likely to slip, and the weld positioning is accurate. The locking element is provided on the first clamping plate 11 and the second clamping plate 21 to lock the hinge angle of the first clamping plate 11 and the second clamping plate 21. The locking element can lock the hinge angle of the first clamping plate 11 and the second clamping plate 21, preventing the failure of the connection function of the adjusting element 3 from causing the rail clamping device to separate from the rail and thus causing danger. It plays a safety role and enhances safety.

[0021] According to an embodiment of the present invention, a rail clamping device is provided, wherein the adjusting member 3 includes a screw 31 and a handle 32; the screw 31 passes through the first support rod 12 and the second support rod 22, and is threadedly connected to the first support rod 12 and the second support rod 22 respectively; the handle 32 is disposed at the insertion end of the screw 31.

[0022] In some possible implementations, the screw 31 does not need to be threaded all the way through; it can have two threaded areas corresponding to the connection points of the two support rods. The handle 32 can include a sleeve and a grip. The sleeve can be bolted to the screw 31 or welded to it, and the grip can be welded to the sleeve.

[0023] In some possible implementations, the screw 31 can be made of threaded steel, the sleeve can be made of steel pipe, and the handle can be made of steel plate or steel bar, etc., which are convenient to obtain, simple to manufacture, low in cost, and have good economic benefits.

[0024] According to an embodiment of the present invention, a rail clamping device further includes a limiting member 5, which is disposed at the protruding end of the screw 31 and is used to limit the axial displacement of the screw 31.

[0025] In some possible implementations, the limiting member 5 is a pin or dowel, with a through hole provided at the protruding end of the screw 31. The pin or dowel is inserted into the through hole to limit the screw 31, preventing the screw 31 from displacing axially due to the failure of the connection between it and the support rod, which would cause the first clamping plate 11 and the second clamping plate 21 to disconnect and result in clamping failure.

[0026] In some possible implementations, the limiting member 5 includes a limiting protrusion and a spring assembly. The screw 31 has a mounting hole on its surface. The limiting protrusion is set in the mounting hole by the spring assembly and can be compressed and popped out, functioning similarly to the locking button at the connection of the telescopic pole of a folding umbrella. When the screw 31 passes through the second support rod 22, it will automatically pop out to limit the retraction of the screw 31.

[0027] According to an embodiment of the present invention, a rail clamping device is provided, the locking component includes: a hook 41 and a locking rod 42; the hook 41 is disposed on the side of the first clamping plate 11 opposite to the first support rod 12; one end of the locking rod 42 is hinged to the side of the second clamping plate 21 opposite to the second support rod 22, and the other end of the locking rod 42 is disposed on the hook 41.

[0028] In some possible implementations, the hook 41 can be a ring buckle, welded and fixed to the side of the first clamping plate 11 or the second clamping plate 21, that is, the side opposite to the support rod; a hinge post can be provided on the side of the second clamping plate 21 or the first clamping plate 11, and the end of the locking rod 42 is hinged to the hinge post, which can rotate a certain angle.

[0029] According to an embodiment of the present invention, a rail clamping device is provided, wherein the locking rod 42 includes a first rod body 421 and a second rod body 422; one end of the first rod body 421 is provided with a hook for hooking a hook buckle 41, and the other end of the first rod body 421 is provided with a thread; one end of the second rod body 422 is threadedly connected to the first rod body 421, and the other end of the second rod body 422 is hinged to the second clamping plate 21.

[0030] In some possible implementations, a sleeve can be provided at the end of the second rod 422 away from the hinge end, and the end of the first rod 421 away from the hook 41 is inserted into the sleeve. By adjusting the insertion length of the first rod 421 and the second rod 422, the total length of the locking rod 42 can be adjusted. The sleeve is provided with fasteners. After the total length is determined, the position of the first rod 421 in the second rod 422 can be fixed by the fasteners, thereby fixing the total length of the locking rod 42 to adapt to the changes in the distance between the hinge point and the hook 41 caused by different hinge angles of the first clamping plate 11 and the second clamping plate 21.

[0031] According to an embodiment of the present invention, a rail clamping device further includes: a lifting rod 6, with both ends respectively disposed at the hinge points of the first clamping plate 11 and the second clamping plate 21, for attaching a lifting hook; wherein, a lifting ring or an anti-detachment component may be further disposed on the lifting rod 6 to prevent detachment due to angle changes during lifting and to avoid danger.

[0032] According to an embodiment of the present invention, a rail clamping device further includes: a reinforcing plate 7, disposed between two first clamping plates 11 and between two second clamping plates 21.

[0033] In some possible implementations, multiple reinforcing plates 7 can be provided as needed. The reinforcing plates 7 can be made of steel plates, steel bars or steel pipes and fixed between the first clamping plate 11 or the second clamping plate 21 by welding to enhance the strength and stability of the overall structure.

[0034] According to an embodiment of the present invention, a rail clamping device is provided, wherein a first clamping plate 11 is bent on the side away from the hinge side to form a first clamping hook; a second clamping plate 21 is bent on the side away from the hinge side to form a second clamping hook; wherein the first clamping hook and the second clamping hook are arranged opposite to each other; wherein the first clamping hook and the second clamping hook are arranged opposite to each other to clamp the rail. Since the rail is in the shape of an I-beam, including a flange plate and a web plate, the first clamping hook and the second clamping hook are respectively located on both sides of the web plate, and the bent part of the clamping hook is precisely engaged with the edge of the flange plate, so that the shapes fit together to clamp securely.

[0035] According to an embodiment of the present invention, a rail clamping device further includes: an abutment plate 8, which is disposed on a first clamping hook and / or a second clamping hook for abutting against the clamped rail; wherein, the abutment plate 8 is disposed on the side of the clamping hook near the rail flange plate for abutting against the flange plate, which can increase the contact area between the clamping hook and the flange plate, thereby increasing the clamping stability; further, the abutment plate 8 can be made of steel plate and welded and fixed to the first clamping hook or the second clamping hook.

[0036] According to an embodiment of the present invention, a rail clamping device further includes an anti-slip pad, which is disposed on the side of the abutment plate 8 that contacts the clamped rail.

[0037] In some possible implementations, the anti-slip pad is made of rubber or plastic, which can increase the friction between the abutment plate 8 and the rail, and further increase the clamping stability; wherein, the anti-slip pad can be fixed to the abutment plate 8 by bolts or adhesive.

[0038] The rail clamping device provided in this embodiment of the invention is used as follows: The hooks of the first clamping plate 11 and the second clamping plate 21 are aligned with the flange plates of the rail and snapped into place. The screw 31 is passed through the first support rod 12 and the second support rod 22. The handle 32 is rotated to rotate the screw 31, thereby tightening the first clamping plate 11 and the second clamping plate 21. This causes the first clamping plate 11 and the second clamping plate 21 to generate a clamping force on the rail, gradually tightening until the required clamping degree is achieved. The length of the locking rod 42 is adjusted, and the locking rod 42 is hooked onto the hook buckle 41 for locking protection. Alternatively, a limiting pin is inserted into the pre-drilled through hole at the protruding end of the screw 31 for limiting protection. Multiple sets of rail clamping devices can be arranged at intervals along the length of the rail to achieve balanced clamping and facilitate subsequent hoisting. During hoisting, the hook can be directly attached to the hoisting rod 6, or the hoisting rod 6 with multiple rail clamps can be connected by hoisting ropes to achieve synchronous hoisting, avoiding the need to install additional slings or steel chains, which can achieve efficient hoisting and has strong stability and safety.

[0039] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A rail clamping device, characterized in that, include: Two first clamping plates (11) are arranged opposite each other along a first direction; The first support rod (12) is disposed between the two first clamping plates (11); Two second clamping plates (21) are arranged opposite each other along the first direction, and one side of the second clamping plate (21) is hinged to one side of the first clamping plate (11); The second support rod (22) is disposed between the two second clamping plates (21); Adjusting component (3) is detachably connected to the first support rod (12) and the second support rod (22) for adjusting the hinge angle of the first clamping plate (11) and the second clamping plate (21); A locking element is provided on the first clamping plate (11) and the second clamping plate (21) for locking the hinge angle of the first clamping plate (11) and the second clamping plate (21).

2. The rail clamping device according to claim 1, characterized in that, The adjusting element (3) includes: The screw (31) passes through the first support rod (12) and the second support rod (22) and is threadedly connected to the first support rod (12) and the second support rod (22) respectively; A handle (32) is provided at the insertion end of the screw (31).

3. The rail clamping device according to claim 2, characterized in that, Also includes: A limiting member (5) is provided at the protruding end of the screw (31) to limit the axial displacement of the screw (31).

4. The rail clamping device according to claim 1, characterized in that, The locking element includes: The hook (41) is located on the side of the first clamp (11) opposite to the first support rod (12); A locking rod (42) is provided, one end of which is hinged to the side of the second clamping plate (21) facing away from the second support rod (22), and the other end of which is provided to the hook (41).

5. The rail clamping device according to claim 4, characterized in that, The locking lever (42) includes: The first rod (421) has a hook at one end for attaching to the hook (41), and a thread at the other end. The second rod (422) has one end threadedly connected to the first rod (421) and the other end hinged to the second clamping plate (21).

6. The rail clamping device according to any one of claims 1-5, characterized in that, Also includes: The lifting rod (6) has its two ends set at the hinge points of the first clamping plate (11) and the second clamping plate (21) respectively, for attaching the lifting hook.

7. The rail clamping device according to any one of claims 1-5, characterized in that, Also includes: A reinforcing plate (7) is disposed between the two first clamping plates (11) and between the two second clamping plates (21).

8. The rail clamping device according to any one of claims 1-5, characterized in that, The first clamping plate (11) is bent on the side away from the hinge side to form a first clamping hook; The second clamping plate (21) is bent on the side away from the hinge side to form a second clamping hook; The first and second clamps are arranged opposite to each other.

9. The rail clamping device according to claim 8, characterized in that, Also includes: An abutment plate (8) is provided on the first clamp and / or the second clamp for abutting against the clamped rail.

10. The rail clamping device according to claim 9, characterized in that, Also includes: An anti-slip pad is provided on the side of the abutment plate (8) that contacts the clamped rail.