Rail clamping device, pushing device and walking system

Abstract

The utility model discloses a rail clamping device, a pushing device and a walking system. The rail clamping device solves the technical problems that an existing rail clamping device is insufficient in clamping capacity and inconvenient to position. The rail clamping device comprises a fixed base and a shear fork rail clamping unit hinged to the fixed base, and the fixed base is adjustably connected with a positioning tool used for clamping a rail. The pushing device comprises the rail clamping device; the walking system comprises the pushing device. According to the technical scheme, the rail clamping device is provided with the shear fork rail clamping unit and the positioning tool, before the shear fork rail clamping unit clamps a rail, the whole rail clamping device can be fixed to the rail through the positioning tool, and then the clamping action of the shear fork rail clamping unit can be achieved conveniently; and the positioning tool also has the effect of enhancing the clamping force of the whole rail clamping device. In addition, the positioning tool is adjustable relative to the fixed base, so that the positioning tool can be matched with tracks with different widths, the application range is wide, and disassembly, assembly and displacement are convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of jacking systems, in particular to a rail clamp, a jacking device and a traveling system. Background Art

[0002] In shield construction projects, especially when it comes to the installation of super-large shields, the equipment is transported from the factory to the site. After the ground assembly process is completed, it needs to be transported underground for further overall assembly. Generally, there are two main and auxiliary wellheads. The main wellhead is used to lower the cutterhead shield body trailer No. 1, etc. The rear supporting trailer is often lowered from the auxiliary wellhead and then moved forward to complete the docking with the front trailer. As the diameter of the shield machine continues to increase, the weight of the rear supporting trailer continues to increase, and a safe, stable and efficient mobile rear supporting method is required to complete the overall assembly of the shield machine.

[0003] In the existing shield installation technology, it is common to use a winch to provide traction or welded top code as a reaction force support to push the back-end to complete the splicing of the entire machine. For the former, considering the increasing weight of the equipment to be spliced, the use of the winch cannot be increased continuously because the wire rope needs to be wound, resulting in increasingly strong limitations. If the wire rope is not strengthened, the back-end mass of the large-diameter shield equipment is large, and the safety hazards caused by the risk of breaking cannot be ignored; the latter has a limited pushing distance in actual applications, and the pushing position needs to be constantly adjusted, and the code plate needs to be cut and welded continuously, which not only increases costs but also wastes construction time.

[0004] After searching, it was found that the Chinese utility model patent with the authorization announcement date of 2022.09.30 and the authorization announcement number of CN 217516538 U discloses an automatic hydraulic track clamp for a hydropower station gantry crane, including two track clamp arms, two pairs of connecting rods, a hydraulic push rod, a spring and a clamp seat, the two ends of the hydraulic push rod are respectively hinged to the upper ends of the two track clamp arms, the upper ends of the two pairs of connecting rods are respectively hinged to the upper parts of the two track clamp arms, the lower ends of the two pairs of connecting rods are hinged, the lower ends of the two pairs of connecting rods are connected to the upper ends of the springs, the lower ends of the springs are connected to the clamp seat, the clamp seat is supported on the track, the lower parts of the two track clamp arms are respectively hinged to the mounting surfaces on both sides of the clamp seat, and the lower ends of the two track clamp arms are respectively fixed with jaw irons for clamping the track.

[0005] At the same time, the Chinese utility model patent with authorization announcement number CN 204397049 U also discloses a hydraulic rail clamp, including a rail clamp bracket and a rail clamp arm, the rail clamp arm is installed on the rail clamp bracket, and also includes a box body, a support shaft and a hydraulic cylinder, the box body is surrounded by a left side plate, a right side plate, a front side plate and a rear side plate to form an inner cavity, the rear side plate is provided with an integral mounting through hole, the box body is provided with a support shaft mounting hole passing through the front side plate and the rear side plate, the support shaft is installed in the support shaft mounting hole, the rail clamp bracket is provided with a through hole, the rail clamp bracket is arranged in the inner cavity and its through hole cooperates with the support shaft, the rail clamp arm rotates with the rail clamp bracket and the clamping part extends out of the inner cavity, the hydraulic cylinder is arranged between the two rail clamp arms, and both ends are connected to the upper ends of the rail clamp arms.

[0006] However, the hydraulic rail clamp disclosed in the above utility model patent has the following shortcomings: first, the clamping force is limited. Although the opening size of the rail clamping arm is adjustable, the main structure cannot be clamped with the rail and cannot provide sufficient supporting reaction force, making it difficult to be applied to the jacking system; second, positioning is inconvenient. The rail clamping arm is either clamped at the rail head or at the rail waist. Before the rail clamping arm is connected to the rail head or rail waist, the main structure cannot be positioned.

[0007] It should be particularly noted that the above technical information is only intended to deepen the understanding of the overall background technology of the present utility model, and should not be regarded as admitting or implying in any form that the above technical information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0008] In view of the deficiencies in the above-mentioned background technology, the utility model proposes a rail clamp, a pushing device and a travel system, which solve the technical problems of insufficient clamping capacity and inconvenient positioning of the existing rail clamp.

[0009] The technical solution of this application is:

[0010] A rail clamp comprises a fixed base and a scissor-type rail clamping unit hingedly connected to the fixed base, wherein the fixed base is adjustably connected to a positioning fixture for clamping a rail. The rail clamp provided by this technical solution not only has a scissor-type rail clamping unit, but also has a positioning fixture. Before the scissor-type rail clamping unit clamps the rail, not only can the entire rail clamp be fixed on the rail by the positioning fixture, thereby facilitating the clamping action of the scissor-type rail clamping unit, but the positioning fixture itself also has the function of enhancing the clamping force of the entire rail clamp, and can work together with the scissor-type rail clamping unit. In addition, the positioning fixture is adjustable relative to the fixed base, so that the positioning fixture can be adapted to rails of different widths, has a wide range of applications, and is convenient for disassembly and assembly and displacement.

[0011] As a preferred technical solution, the positioning tool comprises clamping plates connected to both sides of the fixed base, and the spacing between adjacent clamping plates is adjustable. Based on the above technical solution, this technical solution sets the positioning tool as a clamping plate structure, which is not only simple in structure and low in cost, but also easy to operate and replace.

[0012] As a preferred technical solution, the clamping plate and / or the fixed base are provided with long holes for adjusting the position of the clamping plate. On the basis of the above technical solution, the present technical solution sets the adjustment form of the clamping plate spacing to be adapted to the long hole and the bolt group. Not only can the long hole be set on the fixed base, but the round hole can be set on the clamping plate; the long hole can also be set on the clamping plate, and the round hole can be set on the fixed base; and the long hole can also be set on both the clamping plate and the fixed base. It should be particularly noted that the length direction of the long hole is not limited to the length direction of the vertical track, and can also be set obliquely relative to the length direction of the track, as long as the spacing between adjacent clamping plates can be changed.

[0013] As a preferred technical solution, the inner side surface of the clamping plate is adapted to the outer side surface of the rail head and / or rail waist of the track. Based on the above technical solution, the present technical solution sets the inner side surface of the clamping plate to a special structural form, which can adopt a shape that is adapted to the rail head, a shape that is adapted to the rail waist, or a shape that is adapted to both the rail head and the rail waist.

[0014] As a preferred technical solution, the fixed base includes two side blocks connected by a rotating connecting rod, and the scissor-type rail clamping unit is located between the two side blocks and connected to the rotating connecting rod. Based on the above technical solution, this technical solution sets the fixed base as a hollow structure, and sets at least two side blocks at intervals along the length direction of the track, which is not only convenient for accommodating the moving scissor-type rail clamping unit, but also convenient for rationally arranging the force layout, making the force symmetrical and the stress distribution uniform, avoiding the generation of torsional force and stress concentration.

[0015] As a preferred technical solution, the scissor-type rail clamping unit includes two rocker arms that are symmetrically arranged and connected to the rotating connecting rod. The upper ends of the two rocker arms are connected by a first telescopic device, and the lower ends are connected to a friction plate that matches the rail waist of the track or a positioning pin that matches the positioning hole on the rail waist. On the basis of the above technical solution, this technical solution sets the power part of the scissor-type rail clamping unit as the first telescopic device. When the length of the first telescopic device changes, the two rocker arms rotate around the rotating connecting rod, and the lower ends of the two rocker arms approach or move away from each other, thereby achieving clamping or unlocking of the track. It should be particularly noted that the first telescopic device has a variety of options, not only hydraulic cylinders, but also electric cylinders, winches, etc. can be used. In addition, in addition to the clamping method of using friction plates to clamp the rails, positioning pins can be inserted between the rocker arms and the rails. Of course, friction plates and positioning pins can also be used at the same time.

[0016] As a preferred technical solution, two symmetrical rotating connecting rods are connected between the two side blocks, and the two rocker arms are respectively connected to one of the rotating connecting rods. Based on the above technical solution, this technical solution sets two rotating connecting rods, which can not only disperse the force when the rail clamp is clamped, but also enhance the connection stability between the two side blocks.

[0017] As a preferred technical solution, a vertical long hole is provided in the middle of each side block, a sliding link is provided between the two vertical long holes, and each rocker arm is connected to the sliding link through a connecting piece. On the basis of the above technical solution, this technical solution further strengthens the structural strength and movement stability of the scissor-type rail clamping unit. The force borne by the rocker arm can not only be transmitted to the side block by rotating the connecting rod, and then transmitted to the track through the clamping plate, but also can be transmitted to the side block through the connecting piece and the sliding link, and then transmitted to the track through the clamping plate. At the same time, the sliding link can also play a positioning and guiding role in the movement of the rocker arm.

[0018] As a preferred technical solution, the rocker arms are symmetrically arranged in pairs, and at least two vertically arranged longitudinal rods are connected between the two rocker arms on the left and between the two rocker arms on the right. The two upper longitudinal rods are respectively connected to the two ends of the first telescopic device, and the two lower longitudinal rods are connected to the sliding connecting rod through corresponding connecting plates.

[0019] As a preferred technical solution, the rotating connecting rod is connected to the bearing hole provided on the side block through a bearing.

[0020] A pushing device comprises the rail clamp described in any one of the above technical solutions, wherein the fixed base is connected to a second telescopic device.

[0021] As a preferred technical solution, the second telescopic device is a push cylinder, the rodless cavity of the push cylinder is hinged to the fixed base, and the rodless cavity of the push cylinder is connected to a cylinder stabilizer for clamping the rail.

[0022] A walking system comprises a track, wherein the track is connected to the above-mentioned pushing device, and the second telescopic device is connected between the track clamp and the pushed equipment.

[0023] Compared with the prior art, the technical solution provided by the utility model not only solves the safety risks caused by the too thin winch wire rope in the prior art, and the problem that the too thick wire rope cannot be completely wound, but also solves the problem of inefficiency caused by the need to repeatedly weld according to different positions to achieve jacking by welding jacks. At the same time, it also improves the clamping capacity and positioning convenience of the existing rail clamp. Therefore, the solution provided by the utility model greatly improves the mobility and wide use of the scissor rail clamp unit on the basis of ensuring the smooth completion of the jacking task. It is easy to install, can adapt to different track head widths, and can flexibly change the rail clamp position according to the jacking position and distance. While saving costs and improving efficiency, it also improves the safety of shield assembly. In addition, the technical solution provided by the utility model can not only be applied to the jacking of components during shield assembly, but also can be applied to the needs of various equipment stepping. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a structural schematic diagram of the jacking device in the utility model;

[0026] Figure 2 for Figure 1 Right view of;

[0027] Figure 3 for Figure 1 Front view of .

[0028] Figure Number:

[0029] 1. Fixed base; 2. Scissor rail clamping unit; 3. Fixed tooling; 4. Push cylinder; 5. Cylinder stabilizer; 11. Side block; 12. Bearing hole; 13. Bearing; 14. Rotating connecting rod; 15. Clamp; 16. Horizontal strip hole; 17. Vertical strip hole; 18. Bolt group; 19. Bolt hole; 20. Long bolt, nut and gasket combination; 21. Rocker arm; 22. Cylinder; 23. Upper bolt group; 24. Middle bolt group; 25. Lower bolt group; 26. Connecting plate; 27. Friction plate; 100. Track; 101. Rail head; 102. Rail waist; 103. Rail bottom; 104. Pressing plate; 105. Embedded steel bars. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the core concept of the utility model and the following embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] The present application provides these embodiments to make the present application thorough and complete, and to fully express the scope of the present application to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0032] It should be noted that, in the description of this application, unless otherwise specified, the meaning of "several" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "radial" and the like indicate positions or positional relationships only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0033] In addition, the words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0034] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0035] All terms used in this application have the same meaning as those understood by those of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0036] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0037] A rail clamp, such as Figure 3 As shown, it includes a fixed base 1 and a scissor-type rail clamping unit 2 hingedly connected to the fixed base 1, and the fixed base 1 is adjustably connected to a positioning tool for clamping the rail 100.

[0038] The rail clamp provided in this embodiment not only has a scissor-type rail clamp unit 2, but also has a positioning fixture. Before the scissor-type rail clamp unit 2 clamps the rail 100, not only can the entire rail clamp be fixed on the rail 100 by the positioning fixture, thereby facilitating the clamping action of the scissor-type rail clamp unit 2, but the positioning fixture itself also has the function of enhancing the clamping force of the entire rail clamp, and can work together with the scissor-type rail clamp unit 2. In addition, the positioning fixture is adjustable relative to the fixed base 1, so the positioning fixture can be adapted to rails 100 of different widths, with a wide range of applications and convenient disassembly and displacement.

[0039] Based on the above embodiments, as a preferred embodiment, Figure 1 and Figure 2 As shown, the positioning tool comprises clamping plates 15 connected to both sides of the fixed base 1, and the spacing between adjacent clamping plates 15 is adjustable. In this embodiment, the positioning tool is set as the structural form of the clamping plates 15, which is not only simple in structure and low in cost, but also easy to operate and replace.

[0040] On the basis of the above embodiments, as a preferred embodiment, the clamping plate 15 and / or the fixed base 1 are provided with a long hole for adjusting the position of the clamping plate 15 .

[0041] In this embodiment, the adjustment form of the spacing of the clamping plates 15 is set as the long hole and the bolt group are adapted. Not only can the long hole be set on the fixed base 1, but the round hole can be set on the clamping plate 15; the long hole can also be set on the clamping plate 15, and the round hole can be set on the fixed base 1; and the long hole can also be set on both the clamping plate 15 and the fixed base 1. It should be particularly noted that the length direction of the long hole is not limited to the vertical length direction of the track 100, and can also be set obliquely relative to the length direction of the track 100, as long as the spacing between adjacent clamping plates 15 can be changed.

[0042] On the basis of the above embodiments, as a preferred embodiment, the inner side surface of the clamping plate 15 is adapted to the outer side surface of the rail head 101 and / or the rail web 102 of the rail 100 .

[0043] In this embodiment, the inner side surface of the clamping plate 15 is configured as a special structural form, which can adopt a shape that is compatible with the rail head 101, a shape that is compatible with the rail waist 102, or a shape that is compatible with both the rail head 101 and the rail waist 102.

[0044] Based on the above embodiment, as a preferred embodiment, the fixed base 1 includes two side blocks 11 connected by a rotating connecting rod 14, and the scissors-type rail clamp unit 2 is located between the two side blocks 11 and connected to the rotating connecting rod 14.

[0045] In this embodiment, the fixed base 1 is configured as a hollow structure, and at least two side blocks 11 are spaced apart along the length direction of the track 100, which is not only convenient for accommodating the moving scissor-type rail clamping unit 2, but also convenient for rationally arranging the force layout, making the force symmetrical and the stress distribution uniform, thereby avoiding torsional force and stress concentration.

[0046] On the basis of the above embodiments, as a preferred embodiment, the scissors-type rail clamping unit 2 includes two rocker arms 21 which are symmetrically arranged on the left and right and connected to the rotating connecting rod 14, the upper ends of the two rocker arms 21 are connected by a first telescopic device, and the lower ends are connected to a friction plate 27 adapted to the rail waist 102 of the track 100 or a positioning pin adapted to the positioning hole on the rail waist 102.

[0047] In this embodiment, the power part of the scissor-type rail clamping unit 2 is set as the first telescopic device. When the length of the first telescopic device changes, the two rocker arms 21 rotate around the rotating connecting rod 14, and the lower ends of the two rocker arms move closer to or farther from each other, thereby clamping or unlocking the rail 100. It should be particularly noted that the first telescopic device has a variety of options, and can use not only hydraulic cylinders, but also electric cylinders, and winches, etc. In addition, in addition to the clamping method of using the friction plate 27 to clamp the rail 100, a positioning pin can be inserted between the rocker arm 21 and the rail 100, and of course, the friction plate 27 and the positioning pin can also be used at the same time.

[0048] Based on the above embodiment, as a preferred embodiment, two symmetrical rotating connecting rods 14 are connected between the two side blocks 11, and the two rocker arms 21 are respectively connected to one of the rotating connecting rods 14. In this embodiment, two rotating connecting rods 14 are provided, which can not only disperse the force when the rail clamp is clamped, but also enhance the connection stability between the two side blocks 11.

[0049] On the basis of the above embodiments, as a preferred embodiment, a vertical long hole 17 is provided in the middle of each side block 11, a sliding link 18 is provided between two vertical long holes 17, and each rocker arm 21 is connected to the sliding link 18 through a connecting piece 26.

[0050] This embodiment further enhances the structural strength and movement stability of the scissors-type rail clamping unit 2. The force borne by the rocker arm 21 can not only be transmitted to the side block 11 by rotating the connecting rod 14, and then transmitted to the track 100 through the clamping plate 15, but also can be transmitted to the side block through the connecting piece 26 and the sliding link 18, and then transmitted to the track 100 through the clamping plate 15. At the same time, the sliding link 18 can also play a positioning and guiding role in the movement of the rocker arm 21.

[0051] On the basis of the above embodiment, as a preferred embodiment, the rocker arms 21 symmetrically arranged on the left and right are arranged in pairs, and at least two longitudinal rods arranged in sequence up and down are connected between the two rocker arms 21 on the left and between the two rocker arms 21 on the right. The two longitudinal rods on the upper side are respectively connected to the two ends of the first telescopic device, and the two longitudinal rods on the lower side are connected to the sliding connecting rod 18 through corresponding connecting plates 26.

[0052] On the basis of the above embodiment, as a preferred embodiment, the rotating connecting rod 14 is connected to the bearing hole 12 provided on the side block 11 through a bearing 13 .

[0053] A pushing device comprises the rail clamp described in any one of the above technical solutions, wherein the fixed base 1 is connected to a second telescopic device.

[0054] On the basis of the above embodiments, as a preferred embodiment, the second telescopic device is a push cylinder 4, the rodless cavity of the push cylinder 4 is hinged to the fixed base 1, and the rodless cavity of the push cylinder 4 is connected to a cylinder stabilizer 5 for clamping the rail 100.

[0055] As a preferred jacking device, it comprises: a fixed base, including side blocks, bearing holes, bearings, rotating connecting rods, and clamping plates.

[0056] There are two side blocks, each of which has front and rear steel plates (with the pushing direction as the front), and three side and bottom steel plates connected to the front and rear steel plates. There is a vertical long hole in the upper middle part of the rear steel plate of the side block, and bolts, nuts and gaskets are arranged in the hole. There are bearing holes on both sides of the middle part of the rear steel plate, and bearings are placed inside. Two rotating connecting rods pass through the bearings to fix the two side blocks; two bolt holes are symmetrically distributed on both sides of the front steel plate of the side block; the splint is long and has 4 pieces, two pieces in the front and two pieces in the back, located on both sides of the low steel plate, and there are horizontal strip holes on the splint; the horizontal strip holes are provided with long bolts, which pass through the horizontal strip holes and the bolt holes on the low steel plate at the same time; the long bolts are fastened with nuts and washers.

[0057] The scissor-type rail clamping unit includes a rocker arm, a cylinder, bolts, nuts, washers, connecting plates, and friction plates. There are two rockers, each with three bolt holes on the top, a part of the middle and lower part extending out to connect with the side block, and a friction plate is arranged at the bottom to contact the rail waist; there are three bolts installed in the rocker arm holes; the nuts and washers are used to fix the bolts; there are holes at both ends of the cylinder, and the two upper bolts pass through the holes at the cylinder port to fix it; there are two groups of four connecting plates, and the two ends are respectively fixed on the bolts in the middle holes of the rockers on both sides, and the other ends of the connecting plates pass through the bolts in the middle of the side blocks together; there are two friction plates, which are L-shaped and fit tightly with the rail in the clamped state, with the middle part close to the rail waist and the upper part close to the lower area of ​​the rail head. The jacking system includes a jacking cylinder, a fixing tool, and a cylinder stabilizer. The fixing tool is a U-shaped base with bolt holes on both sides; the cylinder stabilizer is an arc-shaped base.

[0058] In the rail clamping and jacking system of the present embodiment, firstly, the movable clamping plate can match different types of rails, and secondly, with the help of devices such as bolt bearing connecting plates, the force of the clamping cylinder pushing the top end of the rocker arm is converted into pressure of the friction plate at the bottom end of the rocker arm on the rail waist. The friction force generated by this pressure is used to balance the backward reaction force generated by the jacking system when pushing the equipment, so as to achieve the purpose of pushing the equipment.

[0059] Therefore, according to the present invention, tracks of different widths can be used, and the movement of large equipment on the track can be completed by clamping the track and pushing it up. It is easy to use, saves costs, improves efficiency, and improves the safety of the actual assembly of the shield.

[0060] Specific as Figures 1 to 3As shown, it includes a fixed base 1, which mainly includes two side blocks 11, a vertical long hole 17 is provided in the middle of the long steel plate of the side block, and a group of bolts, nuts and gaskets 18 are arranged in the long hole 17; two bearing holes 12 are provided in the middle of the side block 11, and bearings 13 are provided in the two rotating connecting rods 14, which are clamped in the four bearing holes of the two side blocks 11 to connect the two side blocks 11; there are two bolt holes 19 on the short steel plate of the side block 11, and there are two clamping plates 15 in front of the bolt holes 19, and there are horizontal long holes 16 on the clamping plates 15; the long bolt group 20 can pass through the bolt hole 19 and the long hole 16 at the same time.

[0061] In a specific embodiment, on the track laid flat at the bottom of the side block 1, loosen the bolt 20, and the clamp 15 becomes adjustable. After adjusting to a suitable position according to the track width, tighten the bolt 20 to form a fixed structure. At this time, the side block 1 and the clamp 15 work together to clamp the track and stabilize the device on the track.

[0062] In a specific embodiment, the track 100 includes a rail head 101, a rail waist 102, a rail bottom 103, a pressing sheet 104, and embedded steel bars 105. The rail head 101 is in direct contact with the clamping plate 15 and the side block 1; the pressing sheet 104 array is placed on the ground to clamp the rail bottom 103 to stabilize the track, and the embedded steel bars 105 further fix the pressing sheet 104.

[0063] refer to Figure 2 The present invention also includes a scissor rail clamping unit, including a rocker arm 21, a cylinder 22, an upper bolt assembly 23, a middle bolt assembly 24, a lower bolt assembly 25, a connecting piece 26, and a friction plate 27. The cylinder 22 has holes at both ends, and the upper bolt 23 passes through the holes at the end of the cylinder 22 to fix it; the connecting piece 26 has two groups of four, and the two ends are respectively fixed on the bolts 24, and the other ends of the connecting piece 26 pass through the middle bolt 17 of the side block together; the middle and lower extended part of the rocker arm has two holes, and the two rotating connecting rods 14 on the side block 11 pass through the holes to connect the rocker arm 21 and the side block 1. There are two friction plates 27, which are L-shaped and fit tightly with the track in the clamped state, with the middle part close to the rail waist and the upper part close to the lower area of ​​the rail head.

[0064] In a specific embodiment, the oil cylinder 22 extends outward and pushes the rocker arm 21 through the bolt 23. The rocker arm 21 rotates around the rotating connecting rod 14 as the axis. The presence of the bearings 13 at both ends reduces the resistance to rotation and reduces the wear of the equipment during use. The rocker arm part above the axis expands outward and the rocker arm part below the axis retracts inward, which is manifested as the bolt 18 moving downward in the vertical long hole along with the four connecting pieces 26, and the two friction plates 27 at the bottom of the rocker arm 21 retracting inward to clamp the rail waist 102 and the rail head 101. The pressure between the friction plate and the rail increases as the oil cylinder continues to extend, generating huge friction.

[0065] refer to Figure 3The present invention also includes a push system, including a push cylinder 4, a fixing tool 3, and a cylinder stabilizer 5. The fixing tool 3 is a U-shaped base, with bolt holes 31 on both sides, and bolts 32 pass through the top of the cylinder and the bolt holes 31 to fix the cylinder; the cylinder stabilizer is an arc-shaped base, which is placed in front of the track 100 to further stabilize the push cylinder 4.

[0066] A walking system comprises a track 100, wherein the track 100 is connected to the above-mentioned pushing device, and the second telescopic device is connected between the track clamp and the pushed equipment.

[0067] The parts not described in detail in the present invention are all conventional technical means known to those skilled in the art.

[0068] The above content shows and describes the basic principle, main features and beneficial effects of the utility model. The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A rail clamp, comprising a fixed base (1) and a scissor rail clamp unit (2) hingedly connected to the fixed base (1), characterized in that: The fixed base (1) is adjustably connected to a positioning tool for clamping the track (100).

2. The rail clamp according to claim 1, characterized in that: The positioning tool comprises clamping plates (15) connected to both sides of the fixed base (1), and the spacing between adjacent clamping plates (15) is adjustable.

3. The rail clamp according to claim 2, characterized in that: The clamping plate (15) and / or the fixed base (1) are provided with a long hole for adjusting the position of the clamping plate (15).

4. The rail clamp according to claim 3, characterized in that: The inner side of the clamping plate (15) is adapted to the outer side of the rail head (101) and / or the rail web (102) of the rail (100).

5. The rail clamp according to any one of claims 1 to 4, characterized in that: The fixed base (1) comprises two side blocks (11) connected by a rotating connecting rod (14), and the scissor rail clamp unit (2) is located between the two side blocks (11) and is connected to the rotating connecting rod (14).

6. The rail clamp according to claim 5, characterized in that: The scissor-type rail clamping unit (2) comprises two rocker arms (21) which are arranged symmetrically on both sides and connected to the rotating connecting rod (14); the upper ends of the two rocker arms (21) are connected via a first telescopic device, and the lower ends are connected to a friction plate (27) adapted to the rail waist (102) of the rail (100) or a positioning pin adapted to a positioning hole on the rail waist (102).

7. The rail clamp according to claim 6, characterized in that: Two left-right symmetrical rotating connecting rods (14) are connected between the two side blocks (11), and the two rocker arms (21) are respectively connected to one of the rotating connecting rods (14).

8. The rail clamp according to claim 7, characterized in that: A vertical long hole (17) is provided in the middle of each side block (11), a sliding connecting rod (18) is provided between two vertical long holes (17), and each rocker arm (21) is connected to the sliding connecting rod (18) via a connecting piece (26).

9. The rail clamp according to claim 8, characterized in that: The rocker arms (21) are symmetrically arranged on the left and right sides and are arranged in pairs. At least two vertical rods arranged in sequence are connected between the two rocker arms (21) on the left side and between the two rocker arms (21) on the right side. The two vertical rods on the upper side are respectively connected to the two ends of the first telescopic device, and the two vertical rods on the lower side are connected to the sliding connecting rod (18) via corresponding connecting pieces (26).

10. The rail clamp according to any one of claims 6 to 9, characterized in that: The rotating connecting rod (14) is connected to a bearing hole (12) provided on the side block (11) via a bearing (13).

11. A pushing device, characterized in that: The rail clamp comprises the rail clamp according to any one of claims 1 to 10, wherein the fixed base (1) is connected to a second telescopic device.

12. The pushing device according to claim 11, characterized in that: The second telescopic device is a push cylinder (4), the rodless cavity of the push cylinder (4) is hinged to the fixed base (1), and the rodless cavity of the push cylinder (4) is connected to a cylinder stabilizing member (5) for clamping the track (100).

13. A walking system, comprising a track (100), characterized in that: The track (100) is connected to the pushing device described in claim 11 or 12, and the second telescopic device is connected between the track clamp and the pushed equipment.

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