CN218232975U - Locking clamp and steel rail vibration absorber - Google Patents

Abstract

The utility model provides a locking clamp and rail bump leveller, the support cooperation locating piece that locking clamp adopted U type structure will inhale the shake voussoir and compress tightly on the rail, its clamping-force is stable and can keep for a long time, has avoided the unable long-term stability of holding of elasticity clamp clamping-force, the pine takes off, the clamping-force is not enough, the problem of fracture inefficacy even has ensured to inhale noise reduction effect and security, stability of shaking, and can reduce the frequency of overhauing and maintaining, use manpower sparingly and corresponding cost. Because the locking clamp only includes a monolith support and two sets of locking Assembly, only need during the installation stretch into the rail bottom with the support, rotate the support and form the surrounding structure to the rail, screw up two sets of locking Assembly again and make the locating piece compress tightly the voussoir that shakes, consequently the installation is convenient, workman's low in labor strength, and later maintenance is also more convenient. In addition, fixed a pair of bump leveller needs 4 at least elastic clamps, and adopts the utility model discloses a locking clamp then only needs two, therefore installation time is shorter, and overall cost is lower.

Description

Locking clamp and steel rail vibration absorber

Technical Field

The utility model belongs to the technical field of the track damping is fallen and is fallen, concretely relates to locking clamp and rail bump leveller.

Background

The steel rail vibration absorber is a damping dynamic vibration absorber arranged at the waist parts on two sides of a steel rail, and mainly plays the roles of reducing medium-high frequency steel rail radiation noise, delaying abnormal abrasion of the steel rail, preventing parts of fastening parts from being broken, improving the riding comfort of passengers and the like by changing the characteristic that steel rail vibration is longitudinally transmitted along a line. Since the rail waist portion has a curved surface structure of a specific shape, there is no other fastening mechanism for fixing the absorber of the rail absorber, and it is not allowed to install a fastener such as a bolt through a hole in the rail, and therefore, it is necessary to use an auxiliary fastening device in order to install the absorber at the rail waist portion.

Some such auxiliary fastening devices exist in the prior art, for example, CN202023283302 discloses a clip for fixing a rail damper, which is a sheet metal part, and presses the rail damper on a rail in a clamping manner by using the elastic characteristic of a sheet metal material. Such clips have the following disadvantages: firstly, due to the problems of the manufacturing process, the clamping force of the elastic clamp cannot be kept stable for a long time, the situations of loosening and insufficient clamping force can occur, even the risk of fracture and failure can occur in severe cases, and potential safety hazards are caused; secondly, at least 4 clips are required to fix one rail damper, and the number of clips required is large, which results in high installation and maintenance costs.

CN201120096075 discloses a steel rail vibration absorber mounting fixture, which fixes a steel rail vibration absorber on a steel rail through a bottom plate arranged at the bottom of the steel rail, two pressing plates hinged with the bottom plate, and a plurality of groups of pins. Such clips have the following disadvantages: firstly, the clamp is divided into three plates and a plurality of groups of pins, so that the installation steps are complicated; secondly, because the pin is in large quantity, and a plurality of pin becomes flexible and will influence whole clamping-force, consequently follow-up maintenance need consume a large amount of manpowers and cost.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a go on for solving above-mentioned problem, aim at provides one kind can remain for a long time stable clamping-force and install the locking clamp of maintaining more convenient, adopt the rail bump leveller of this locking clamp, the utility model discloses a following technical scheme:

the utility model provides a locking clamp sets up in the rail bump leveller, be used for with a pair of voussoir that shakes of rail bump leveller presss from both sides tightly in the both sides of rail, a serial communication port, include: a bracket having a U-shape with a pair of support arms; two groups of locking assemblies which are respectively arranged on the pair of supporting arms; and the pair of positioning blocks are arranged on the pair of supporting arms through the locking assemblies respectively, are positioned at the inner sides of the supports and are used for abutting against the vibration absorbing wedge blocks.

The utility model provides a locking clamp can also have such technical characteristics, wherein, inhale the voussoir orientation the surface of locating piece has an at least positioning groove, this positioning groove's extending direction with the length direction who inhales the voussoir is unanimous, the locating piece have at least one with positioning groove assorted location is protruding.

The utility model provides a locking clamp can also have such technical characteristic, wherein, a plurality of counter bores have been seted up on the support arm respectively, every group locking Assembly includes: the nut end of the locking bolt is embedded in the counter bore, and the other end of the locking bolt is fixed in the positioning block; the locking nut is arranged on the locking bolt and used for fixing the nut end of the locking bolt in the counter bore; and the anti-loosening gasket is arranged between the locking nut and the supporting arm.

The utility model provides a locking clamp can also have such technical characterstic, wherein, every a plurality of on the support arm the range direction of counter bore with the extending direction of support arm is unanimous.

The utility model provides a locking clamp can also have such technical characterstic, wherein, every a plurality of on the support arm the array direction of counter bore with the extending direction of support arm is mutually perpendicular.

The utility model provides a locking clamp can also have such technical characteristic, wherein, the support is in the ascending whole length of rail width direction is 200mm ~ 225mm, and is a pair of between the support arm the ascending distance of rail width direction is 160mm ~ 185mm, the support arm is in the ascending length of rail direction of height is 110mm, the whole thickness of support is 16mm ~ 20mm.

The utility model provides a locking clamp can also have such technical characteristic, wherein, the support is made by steel or aluminum alloy material, the locating piece is made by rubber.

The utility model provides a rail bump leveller, a serial communication port, include: the pair of vibration absorption wedges are attached to waist parts on two sides of the steel rail and used for absorbing vibration energy of the steel rail; and at least two locking clamps for clamping and fixing the pair of vibration absorption wedge blocks on the waist parts at two sides of the steel rail, wherein the locking clamps are the locking clamps.

The utility model provides a rail bump leveller can also have such technical characteristics, still includes at least one balancing weight, connects inhale on the non-binding face of shake voussoir, wherein, the balancing weight is made by metal material, and its weight is 4.5kg.

Utility model with the functions and effects

According to the utility model discloses a locking clamp and adopt rail bump leveller of this locking clamp, because this locking clamp adopts the support cooperation locating piece of U type structure to inhale the voussoir and compress tightly on the rail, therefore its clamping-force is stable and can keep for a long time, the clamping-force of having avoided the elasticity to press from both sides can't remain stable for a long time, the pine takes off, the not enough condition of clamping-force appears, the problem of fracture inefficacy even, the effect of making an uproar and the security of falling of inhaling of rail bump leveller has been ensured, and stability, and can reduce the frequency of overhauing and maintaining, use manpower sparingly and corresponding cost. Because this locking clamp only includes a monolith support and two sets of locking Assembly, only need during the installation stretch into the rail bottom with the support, rotate the support and form the surrounding structure to the rail, screw up two sets of locking Assembly again and make the locating piece compress tightly the voussoir that shakes, so simple to operate is swift, and workman's intensity of labour is lower relatively, and later maintenance is also more convenient. In addition, fixed a pair of bump leveller needs 4 at least elastic clamps, and adopts the utility model discloses a locking clamp then only needs two, and consequently installation time is shorter, and overall cost is lower.

Drawings

Fig. 1 is a three-dimensional structure diagram of a steel rail and a steel rail vibration absorber in an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the rail and the rail vibration absorber in an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a rail and shock absorbing wedge in an embodiment of the present invention;

fig. 4 is a three-dimensional structure view of the locking clamp in the embodiment of the present invention;

figure 5 is an orthographic view of an embodiment of the locking clip with portions broken away;

fig. 6 is a side view of a locking clip according to an embodiment of the present invention;

fig. 7 is a perspective view of a bracket of the locking clip according to the embodiment of the present invention;

FIG. 8 is a flow chart of the installation of the rail vibration absorber according to the embodiment of the present invention;

fig. 9 is a flow chart of the installation of the locking clamp according to the embodiment of the present invention;

fig. 10 is a perspective view of a steel rail and a steel rail vibration absorber according to a second embodiment of the present invention;

fig. 11 is a three-dimensional structure view of a steel rail and a steel rail vibration absorber according to a third embodiment of the present invention.

Reference numerals are as follows:

a rail vibration absorber 100; the vibration-absorbing wedge 110; a side surface adhesion surface 111; a bottom mating surface 112; a non-bonding surface 113; a positioning groove 1131; a wedge body 1101; a metal block 1102; a locking clamp 120; a bracket 121; a support arm 1211; a connecting section 1212; reinforcing ribs 1213; a locking assembly 122; a lockbolt 1221; a lock nut 1222; a flat pad 1223; a spring pad 1224; a positioning block 123; a positioning boss 1231; a weight block 130; a through hole 131; 200 parts of steel rails; rail waist 201.

Detailed Description

In order to make the technical means, creation characteristics, achievement purpose and efficacy of the utility model easy to understand, the following embodiments and drawings are combined to make specific explanation on the locking clamp, the rail vibration absorber and the installation method thereof.

< example one >

Fig. 1 is a perspective view of the steel rail vibration absorber according to the present embodiment.

As shown in fig. 1, the present embodiment provides a rail vibration absorber 100 mounted on a rail 200 for absorbing vibration energy of the rail 200 during train running. The rail absorber 100 includes a pair of absorber wedges 110 and two locking clamps 120, the locking clamps 120 being used to clamp the pair of absorber wedges 110 to the sides of the rail 200.

Fig. 2 is a sectional view of the steel rail and the steel rail vibration reducer in the present embodiment, wherein the vibration-absorbing wedge of fig. 2 is not shown in the sectional view for the purpose of explaining the coupling structure.

As shown in fig. 1 and 2, the shock-absorbing wedge 110 has a side abutment surface 111, a bottom abutment surface 112, and a non-abutment surface 113.

The steel rail 200 is an i-shaped steel rail, two sides of the steel rail are provided with concave steel rail waists 201, and the steel rail waists 201 have a specific cambered surface structure. The side engaging surfaces 111 and the bottom engaging surface 112 are shaped to match the rail waist 201 such that the shock-absorbing wedge 110 can be snugly received in the rail waist 201, the non-engaging surface 113 is the surface facing away from the rail 200 after the engagement, and the engaging surface 113 is substantially perpendicular to the ground. Two positioning grooves 1131 are formed in the middle of the non-contact surface 113, the positioning grooves 1131 are wedge-shaped grooves, the area of the groove bottom is smaller than that of the notch, the extending direction of the positioning grooves 1131 is the same as the length direction of the vibration absorbing wedge 110, and the length of the positioning grooves 1131 is smaller than that of the vibration absorbing wedge 110, that is, the positioning grooves 1131 are not through at the two ends of the vibration absorbing wedge 110 in the length direction.

Figure 3 is a cross-sectional view of the rail and shock absorbing wedge of this embodiment.

As shown in fig. 3, the shock-absorbing wedge 110 of the present embodiment is a unitary rubber-metal composite member, in which a wedge body 1101 is made of rubber through vulcanization, and a plurality of metal blocks 1102 are wrapped inside the rubber for increasing the overall weight of the shock-absorbing wedge 110. Since the absorption efficiency of the vibration of a specific frequency is related to the overall weight of the vibration-absorbing wedge 110, a better track vibration-absorbing effect can be achieved by adjusting the overall weight of the vibration-absorbing wedge 110 by the metal block 1102. In addition, the three metal blocks 1102 are uniformly arranged at intervals in the vertical direction, so that the three metal blocks 1102 and the rubber parts between the metal blocks 1102 form a damping body, and a better rail vibration absorption effect can be achieved.

The three metal blocks 1102 in fig. 3 are arranged at even intervals in the vertical direction, and the metal blocks 1102 in the shock-absorbing wedge 110 may be arranged inside the shock-absorbing wedge 110 near the bottom abutting surface 112 so that the overall center of gravity of the shock-absorbing wedge 110 is located downward. Thus, when the vibration-absorbing wedge 110 is engaged with the rail waist portion 201, the vibration-absorbing wedge 110 can be fixedly placed at the position without sliding down by its own structure and without external force, thereby facilitating the assembly.

In addition, the shock-absorbing wedges 110 may be split, dip-molded or non-wrapped shock-absorbing wedges. The split type steel rail vibration absorption wedge block can adopt a structure disclosed in CN212560946U, namely, the vibration absorption wedge block comprises a rubber gasket and a rubber block, and the rubber block is attached to the waist of the steel rail through the rubber gasket; the plastic dipping mode is to adopt the plastic dipping process to manufacture the vibration absorption wedge block with the structure shown in figure 4, and the plastic dipping process can ensure that the mechanical property of the vibration absorption wedge block is better; the wrapping-free type can adopt a structure disclosed in CN214882632U, for example, the vibration-absorbing wedge is a metal block, and has no rubber wrapping, and the surface of the metal block can be subjected to corrosion-resistant treatment such as zinc plating. The specific structures of the vibration-absorbing wedges in the above forms are all the prior art, and therefore, the detailed description is omitted.

Fig. 4 is a perspective view of the clip of the present embodiment.

FIG. 5 is an orthographic view of the locking clip with portions broken away in this embodiment.

Fig. 6 is a side view of the locking clip of the present embodiment.

As shown in fig. 4-6, the locking clamp 120 includes a bracket 121, two sets of locking assemblies 122, and a pair of positioning blocks 123.

The bracket 121 is an integrally formed member made of steel or aluminum alloy material, and the bracket 121 has a substantially U-shape with a square cross section. The holder 121 has a pair of support arms 1211 and a connecting section 1212 connected between the pair of support arms 1211. The pair of support arms 1211 are arranged parallel to each other and perpendicular to the connecting section 1212. The connecting portion between the support arm 1211 and the connecting section 1212 has a convex structure protruding toward the inside of the U-shape as a reinforcing rib 1213.

According to the actual size of the steel rail 200, the overall length of the bracket 121 in the width direction of the steel rail 200 is 200-225 mm; the distance between the pair of support arms 1211 (the distance in the width direction of the rail 200) is 160mm to 185mm; the support arm 1211 has a length of 110mm in the height direction of the steel rail 200. The overall thickness of the support 121 is 16mm to 20mm.

Fig. 7 is a perspective view showing a bracket of the locking clip of the present embodiment.

As shown in fig. 5 and 7, the support arm 1211 is provided with a plurality of counterbores 1211a, and the counterbores 1211a penetrate along the length direction of the bracket 121 for mounting the locking assembly 122. In this embodiment, each support arm 1211 is provided with two counter bores 1211a arranged longitudinally (i.e., along the length of the support arm 1211). In the alternative, the plurality of counterbores 1211a may be arranged in a transverse direction (i.e., in a direction perpendicular to the length direction of the support arms 1211).

Locking assembly 122 is used to secure positioning block 123 to support arm 1211. In this embodiment, each support arm 1211 is provided with a set of locking assemblies 122, and each set of locking assemblies 122 includes two locking bolts 1221, two locking nuts 1222, and two anti-loosening washers.

The locking bolt 1221 is used to mount the positioning block 123. A lock bolt 1221 is installed in the counterbore 1211a, a nut end of the lock bolt 1221 is inserted into the counterbore 1211a so that the nut end does not protrude from the surface of the bracket 121, and the other end of the lock bolt 1221 is fixed in the set block 123. The locknut 1222 is fitted over the lockbolt 1221 for securing the nut end of the lockbolt 1221 in the counterbore 1211a. The lock washer includes a stack of flat pads 1223 and elastic pads 1224, and is disposed between the lock nut 1222 and the support arm 1211.

The positioning block 123 is used to fit and press the shock absorbing wedge 110. The positioning block 123 is made of rubber, and the surface of the positioning block 123 facing the vibration-absorbing wedge 110 is hump-shaped and has two positioning protrusions 1231, and the shape and arrangement of the two positioning protrusions 1231 are matched with the two positioning grooves 1131 on the vibration-absorbing wedge 110, so that the positioning block 123 can be engaged with the non-contact surface 113 of the vibration-absorbing wedge 110. Therefore, after the tightening of the tightening bolt 1221, the positioning block 123 not only can press the vibration-absorbing wedge 110 against the rail 200 in the horizontal direction, but also can limit the vibration-absorbing wedge 110 in the vertical direction because the two positioning protrusions 1231 are fitted into the two positioning grooves 1131, respectively.

Fig. 8 is a flow chart of the installation of the rail vibration absorbers in the present embodiment.

As shown in fig. 8, the installation process of installing the rail vibration reducer 100 on the track 200 specifically includes the following steps:

step S1, a pair of vibration absorbing wedges 110 are respectively placed on the rail waist portions 201 on two sides of a rail 200, and the vibration absorbing wedges 110 are attached to the rail waist portions 201.

And S2, respectively installing two locking clamps 120 at two ends of the vibration-absorbing wedges 110 along the length direction of the steel rail 200, and clamping the pair of vibration-absorbing wedges 110 on the steel rail 200 by the locking clamps 120 to form the steel rail vibration absorber 100.

Fig. 9 is a flow chart of the installation of the locking clamp in the present embodiment.

As shown in fig. 9, in step S2, the installation of each locking clip 120 specifically includes the following steps:

and S2-1, penetrating the locking clamp 120 from the bottom of the steel rail 200 until the middle part of the locking clamp 120 is positioned at the bottom of the steel rail 200.

In this embodiment, the locking clip 120 is horizontally placed, i.e., the plane direction thereof is parallel to the ground and the longitudinal direction thereof is perpendicular to the longitudinal direction of the rail 200, and the locking clip 120 is passed through the bottom of the rail 200 in such a state that the middle portion of the locking clip 120 is positioned at the bottom of the rail 200.

Step S2-2, the locking clamp 120 is rotated to position the pair of supporting arms 121 at two sides of the steel rail 200, respectively, and the extending direction of the supporting arms 121 is perpendicular to the length direction of the steel rail, at this time, the ends of the plurality of locking bolts 1221 face the pair of vibration absorbing wedges 110, respectively.

And S2-3, respectively arranging a pair of positioning blocks 123 at the end parts of the locking bolts 1221, and sequentially rotating the locking bolts 1221 through a tightening tool to enable the end parts of the locking bolts 1221 to be tightened towards the shock-absorbing wedges 110, so that the pair of positioning blocks 123 respectively press the shock-absorbing wedges 110 on the corresponding sides against the steel rail 200.

In this embodiment, the tightening tool is an allen wrench matched with the locking bolt 1221, and after tightening, the end of the locking bolt 1221 is embedded into the positioning block 123.

In step S2-4, each of the locking nuts 1222 is sequentially tightened toward the support arm 1211 by a tightening tool such that the nut end of the corresponding locking bolt 1221 is inserted and fixed into the counterbore 1211a, thereby completing the installation of the locking clamp 120.

In the present embodiment, portions not described in detail are known in the art.

< example two >

Fig. 10 is a perspective view of the steel rail vibration absorber of the present embodiment;

as shown in fig. 10, the present embodiment provides a rail vibration absorber 100, which is different from the first embodiment in that the rail vibration absorber 100 further includes a weight block 130.

The weight members 130 are metal blocks, the surfaces of which are subjected to corrosion prevention treatment (e.g., zinc plating), and the weight of each weight member 130 is 4.5kg. Two through holes 131 are formed in the balancing weight 130, two balancing weight mounting holes are formed in the corresponding positions of the vibration absorption wedge block 110, the through holes 131 and the balancing weight mounting holes are aligned, and then the bolts are screwed in, so that the balancing weight 130 is connected to the vibration absorption wedge block 110. In addition, the weight block 130 has a length smaller than that of the seating groove 1131 of the shock-absorbing wedge 110, so that the weight block 130 can be installed between the two locking clips 130.

Since the vibration-absorbing wedge 110 is a single invariable mass body, its natural frequency is constant, so it has ideal vibration-absorbing and noise-reducing effects only for the steel rail 200 having a specific vibration frequency. In this embodiment, for the steel rail 200 having a specific vibration frequency different from that of the first embodiment, by adding one weight 130, the steel rail vibration absorber 100 can achieve a more ideal vibration absorption and noise reduction effect. Because only the additional weight block 130 is needed, the vibration-absorbing wedge block 110 with different structures is not needed to be designed and produced, and then the locking clamp 120 is disassembled to replace the vibration-absorbing wedge block 110, the construction is more convenient, and the construction time is shorter.

In this embodiment, other structures and functions are the same as those in the first embodiment, and therefore, a description thereof will not be repeated.

< example three >

Fig. 11 is a perspective view of the steel rail vibration absorber of the present embodiment.

As shown in fig. 11, the present embodiment provides a rail vibration absorber 100, which is different from the first embodiment in that the rail vibration absorber 100 of the present embodiment includes two weights 130. Two weights 130 are attached to the vibration-absorbing wedge 110 in a stacked manner.

This embodiment uses two identical clump weights 130, each having a mass of 4.5kg. In addition, the two weights 130 may be replaced with a weight having a total mass of 9kg, or two or more weights having a smaller mass may be used in combination.

In this embodiment, other structures and effects are the same as those in the first and second embodiments, and therefore, the description thereof will not be repeated.

Examples effects and effects

According to the locking clamp 120, the steel rail vibration absorber 100 adopting the locking clamp 120 and the installation method thereof provided by the embodiment, because the locking clamp 120 adopts the bracket 121 with the U-shaped structure to be matched with the positioning block 123 to tightly press the vibration absorbing wedge block 110 on the steel rail 200, the clamping force is stable and can be kept for a long time, the problems that the clamping force of the elastic clamp cannot be kept stable for a long time, the clamping force is loosened, the clamping force is insufficient, and even the fracture failure is solved are solved, the vibration absorbing and noise reducing effects, the safety and the stability of the steel rail vibration absorber 100 are ensured, the frequency of maintenance can be reduced, and the manpower, material and corresponding costs are saved. Because this locking clamp 120 only includes a holistic metal support 121 and two sets of locking Assembly 122, only need during the installation stretch into rail 200 bottom with support 121, rotate support 121 and form the surrounding structure to rail 200, screw up two sets of locking Assembly 122 again and make a pair of locating piece 123 compress tightly a pair of voussoir 110 that shakes, therefore simple to operate is swift, and workman's intensity of labour is lower relatively, and later maintenance is also more convenient. In addition, fixed a pair of bump leveller needs 4 at least elastic clamps, and adopts the utility model discloses a locking clamp 120 then only needs two, therefore installation time is shorter, and the overall cost is lower.

Further, the non-contact surface 113 of the shock-absorbing wedge 110 is provided with two positioning grooves 1131, and the surface of the positioning block 123 facing the shock-absorbing wedge 110 is provided with two positioning protrusions 1231 matched with the positioning grooves, so that the locking bolt 1221 is tightened, the positioning block 123 not only can press the shock-absorbing wedge 110 on the steel rail 200 in the horizontal direction, but also can limit the shock-absorbing wedge 110 in the vertical direction, so that the shock-absorbing wedge 110 is completely pressed on the steel rail 200, and the shock-absorbing and noise-reducing effects of the shock-absorbing wedge are ensured.

In addition, the locking assembly 122 includes a locking bolt 1221 and a locking nut 1222, so the locking clamp 120 of this embodiment can be installed by using a socket wrench, and the elastic clamp generally needs a special tool to be spread and installed, so the locking clamp 120 is more convenient to install, and the labor intensity of workers is lower.

In the second and third embodiments, one or two weights 130 are respectively connected to the vibration-absorbing wedge 110 according to the difference of the rails 200. Since the vibration-absorbing wedge 110 is a single invariable mass body, and the natural frequency thereof is constant, it has an ideal vibration-absorbing and noise-reducing effect only for the steel rail 200 having a specific vibration frequency, and for the steel rails 200 of different shapes or sizes, the vibration frequency thereof is also different, and the mass body needs to be correspondingly changed to achieve the ideal vibration-absorbing effect. In the embodiment, the mass body can be conveniently changed by adding the weight block 130 without redesigning and manufacturing the vibration-absorbing wedge block 110 and disassembling the locking clamp 120 for replacement, so that the installation and adjustment are more convenient and faster, and the cost is lower.

The above embodiments are only used to illustrate specific embodiments of the present invention, and the present invention is not limited to the description of the above embodiments.

Claims (9)

1. A locking clip provided in a rail damper for clamping a pair of damper wedges of the rail damper to both sides of a rail, comprising:

a bracket having a U-shape with a pair of support arms;

two groups of locking assemblies which are respectively arranged on the pair of supporting arms; and

and the pair of positioning blocks are arranged on the pair of supporting arms through the locking assemblies respectively, are positioned at the inner sides of the supports and are used for abutting against the vibration absorbing wedge blocks.

2. The locking clamp of claim 1, wherein:

wherein the surface of the shock-absorbing wedge block facing the positioning block is provided with at least one positioning groove, the extension direction of the positioning groove is consistent with the length direction of the shock-absorbing wedge block,

the positioning block is provided with at least one positioning protrusion matched with the positioning groove.

3. The locking clamp of claim 1, wherein:

wherein the supporting arms are respectively provided with a plurality of counter bores,

each set of said locking assemblies comprising:

the nut ends of the locking bolts are embedded in the counter bores, and the other ends of the locking bolts are fixed in the positioning blocks;

the locking nuts are respectively arranged on the locking bolts and used for fixing the nut ends of the locking bolts in the counter bores; and

and the anti-loosening gasket is arranged between the locking nut and the supporting arm.

4. The locking clamp of claim 3, wherein:

the arrangement direction of the counterbores on each support arm is consistent with the extension direction of the support arm.

5. The locking clamp of claim 3 wherein:

the arrangement direction of the counterbores on each supporting arm is perpendicular to the extending direction of the supporting arms.

6. The locking clamp of claim 1 wherein:

wherein the overall length of the bracket in the width direction of the steel rail is 200-225 mm,

the distance between the pair of support arms in the width direction of the steel rail is 160mm to 185mm,

the length of the supporting arm in the height direction of the steel rail is 110mm,

the whole thickness of the support is 16 mm-20 mm.

7. The locking clamp of claim 1, wherein:

wherein the bracket is made of steel or aluminum alloy material,

the positioning block is made of rubber.

8. A rail vibration absorber, comprising:

the pair of vibration absorption wedges are attached to waist parts on two sides of the steel rail and used for absorbing vibration energy of the steel rail; and

at least two locking clamps for clamping and fixing the pair of vibration absorbing wedges on the waist parts at two sides of the steel rail,

wherein the locking clip is as claimed in any one of claims 1 to 7.

9. The rail vibration absorber of claim 8 further comprising:

at least one balancing weight connected to the non-adhering surface of the vibration-absorbing wedge block,

wherein, the balancing weight is made of metal materials, and the weight of the balancing weight is 4.5kg.

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