Non-slip clamp structure for vertical lifting of the rails
The non-slip clamping device with wedges and clamping bodies securely engages with rails, addressing safety and complexity issues in rail lifting by enhancing friction and simplifying assembly.
Patent Information
- Application Number
- DE202025102505
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Priority Date
- 2024-05-10
- Filing Date
- 2025-05-07
- Publication Date
- 2025-07-03
- Estimated Expiration
- 2035-05-31
AI Technical Summary
Current clamping devices for rail lifting in urban rail track laying are prone to loosening, posing safety risks and are complex to install and disassemble, complicating the construction process.
A non-slip clamping device structure featuring a split design with wedges and clamping bodies that securely engage with the rail, using bolts to enhance friction and facilitate easy assembly and disassembly.
The solution provides secure rail lifting with enhanced safety and ease of installation, reducing the risk of slippage and simplifying the assembly process.
Smart Images
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Abstract
Description
TECHNICAL FIELD
[0001] The present utility model relates to the technical field of construction machinery applications, in particular to a non-slip clamping device structure for vertical lifting of rails. STATE OF THE ART
[0002] When laying tracks in urban rail traffic, as well as during individual track laying operations, the limited length of the tunnel's material drop shaft (only 11 meters in the track direction) and the 25-meter length of the track spans prevent the unloading of the entire track span. Therefore, all track components must be lowered into the tunnel through the narrow material drop shaft and installed underground. The rail is the largest single element of the track bed. The vertical lifting of the rails represents the main difficulty in the "manual individual laying" method of track laying.
[0003] In the current track laying in urban rail transport in China, the clamping devices for rail lifting have the following problems, such as unsafe installation, loose clamping devices during the lifting process, complex installation steps and laborious disassembly. CONTENT OF THE PRESENT UTILITY MODEL
[0004] The purpose of the present utility model is to overcome the following problems in the vertical lifting of rails in the laying of tracks in urban rail transportation, such as the problem that the clamping device for lifting rails is easy to loosen or even fall off, resulting in serious safety violations for construction personnel, as well as the problem of complexity in the installation and disassembly of the clamping device, and to provide a non-slip clamping device structure for vertical lifting of rails to improve the safety of vertical lifting of rails and the convenience of assembly and disassembly of the clamping devices.
[0005] To achieve the above purpose, a non-slip clamping device structure for vertically lifting the rails is developed, comprising: a first clamping body, the first clamping body in particular comprising a vertically arranged first main body portion, the first main body portion being provided on an upper side with a first connecting portion extending along a transverse direction, the first connecting portion being provided with a recess in a center; a second clamping body, the second clamping body in particular comprising a vertically arranged second main body portion, the second main body portion being provided on an upper side with a second connecting portion extending along a transverse direction, the position of the second connecting portion matching the recess in the first connecting portion of the first clamping body;a wedge provided below the first connecting portion and the second connecting portion; a bolt that presses firmly against the wedge after passing from a cover side of the first connecting portion of the first clamping body through the second connecting portion;
[0006] Preferably, in the present utility model, the first main body portion is provided on a lower surface with a first snap portion, the second main body portion is provided on a lower surface with a second snap portion provided opposite to the first snap portion, the first snap portion and the second snap portion being used for clamping the rail waist of the rail.
[0007] Preferably, in the present utility model, the wedge is located between a rail deck of the rail and the first connecting portion, the bolt presses firmly against the wedge and the rail deck of the rail after connecting with the first snap portion and with the second snap portion.
[0008] Preferably, in the present utility model, the first clamping body is further provided on the cover side with a steel cable connecting ring.
[0009] Compared with the prior art, the present utility model has the following advantages: 1. The present utility model is provided with a wedge and clamping bodies to fit the shape of the rail, and the bolt is pressed against the wedge, so that the contact surface of the clamping bodies and the wedge and the rail are closely fitted to each other to increase friction and prevent slippage. 2. The clamp bodies and wedge use a split structure and can be installed directly at any position above the rail. 3. The present utility model is easy to assemble and disassemble and allows for rapid construction on site. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 a schematic representation of the overall structure of the clamping body; Fig. 2 a main view of the overall structure of the clamp body; Fig. 3 a left view of the overall structure of the clamping body; Fig. 4 a schematic representation of the overall structure of the first clamping body 2; Fig. 5 a schematic representation of the overall structure of the second clamping body 3; Fig. 6 a schematic representation of the overall structure of the wedge; List of reference symbols: 1 rail; 2 first clamping body; 2.1 first main body section; 2.2 first connecting section; 2.3 first snap section; 2.4 Recess; 3 second clamping body; 3.1 second main body section; 3.2 second connecting section; 3.3 second snap section; 4 wedge; 5 bolts; 6 rings; 7 bolt hole. DETAILED DESCRIPTION
[0010] In order to make the purpose, principle and structure of the present utility model clearer and more explicit, the attached drawings and concrete embodiments are summarized below for further explanation.
[0011] As in Fig. 2, Fig. 4 and Fig. 5, the present utility model provides a non-slip clamp structure for vertically lifting rails. The clamp adopts a split structure so that the second clamp body 3 can be inserted into the first clamp body 2 and assembled into a single unit by means of the bolts 5. The first clamp body 2 has an F-shaped structure. The first clamp body 2 is provided with a first main body portion 2.1 in a vertical direction. The first main body portion 2.1 is provided on the upper side with a first connecting portion 2.2 extending along a transverse direction. The first connecting portion 2.2 is provided with a recess 2.4 in the center. The second clamp body 3 has a J-shaped structure. The second clamp body 3 is provided with a second main body portion 3.1 in a vertical direction.1 is provided on the upper side with a second connecting portion 3.2 extending along a transverse direction, and the second connecting portion 3.2 can firmly engage and cooperate with the recess 2.4.
[0012] As in the Fig. 1, Fig. 2 and Fig. As shown in Figure 3, the wedge 4 is mounted within the first clamp body 2 and the second clamp body 3 so that it abuts against an upper end of the rail head of the rail 1. The first clamp body 2 and the second clamp body 3 are provided with a bolt hole on the upper side, and the bolt 5 presses firmly against the wedge to clamp the rail. The first clamp body 2, the second clamp body 3, the wedge 4, and the contact surface of the rail head of the rail 1 are designed in a radian dimension so that the clamp bodies abut tightly against the rail head of the rail 1, allowing the clamp bodies to be tightly connected to the rail head of the rail. As shown in Fig.As shown in Figure 6, the wedge 4 is provided with a recess on its underside that corresponds to the shape of the rail head. The bolt 5 plays two roles: firstly, it can be firmly connected to the clamping body 2 and the clamping body 3, and secondly, it can press firmly against the wedge 4 to fasten the rail. Furthermore, the first clamping body 2 and the second clamping body 3 are each provided at a lower end with a first snap portion 2.3 and a second snap portion 3.3, wherein the snap portion has a raised structure and presses firmly against the rail waist, allowing it to be mated with the rail.
[0013] The specific usage procedure is as follows: At a distance of 5.5 meters from the end of the rail, the wedge 4 is positioned in the recess of the rail head, and the first snap portion 2 is clamped on top of the wedge 4. The second clamp body 3 is inserted into the first clamp body 2 and simultaneously clamped into the rail head. Two bolts 5 are passed through the bolt holes of the first clamp body 2 and the second clamp body 3, and then firmly press against the wedge 4, so that the wedge is tightly seated against the rail head. The two bolts must be tightened so that the contact surface pressure increases friction to achieve the purpose of anti-skid rails. Finally, the steel wire rope of the hoisting machine is connected to the ring 6 to complete the entire assembly of the anti-skid clamping device structure for vertical rail lifting.
[0014] The above, only the specific implementation of the present utility model, but the scope of protection of the present utility model is not limited to, any person skilled in the art familiar with the technical field of the present utility model within the technical scope of the disclosure of the present utility model, according to the technical program of the present utility model and the new idea of the present utility model added to the equivalent replacement or modification should be covered by the protection of the present utility model within the protection scope of the present utility model.
Claims
[1] Non-slip clamping device structure for vertical lifting of the rails, characterized by that it includes: a first clamping body, wherein the first clamping body in particular comprises a vertically arranged first main body portion, wherein the first main body portion is provided on an upper side with a first connecting portion extending along a transverse direction, wherein the first connecting portion is provided with a recess in a center; a second clamping body, wherein the second clamping body in particular comprises a vertically arranged second main body portion, wherein the second main body portion is provided on an upper side with a second connecting portion extending along a transverse direction, wherein the position of the second connecting portion matches the recess in the first connecting portion of the first clamping body; a wedge provided below the first connecting portion and the second connecting portion; a bolt which, after passing from a cover side of the first connecting portion of the first clamping body through the second connecting portion, presses firmly against the wedge. [2] Anti-slip clamping device structure for vertically lifting the rails according to claim 1, characterized by in that the first main body portion is provided on a lower side with a first snap portion, wherein the second main body portion is provided on a lower side with a second snap portion provided opposite the first snap portion, and wherein the first snap portion and the second snap portion are used for clamping the rail waist of the rail. [3] Anti-slip clamping device structure for vertically lifting the rails according to claim 2, characterized bythat the wedge is located between a rail deck of the rail and the first connecting section, that the bolt, after being connected to the first snap section and to the second snap section, presses firmly against the wedge and the rail deck of the rail. [4] Anti-slip clamping device structure for vertically lifting the rails according to claim 1, characterized by that the first clamping body is further provided with a steel cable connecting ring on the cover side.