Roadbed type grounding terminal for railway through ground wire

Abstract

The utility model relates to the technical field of railway grounding terminals, and provides a roadbed type grounding terminal for a railway through ground wire, which comprises a terminal head, the outer wall of the terminal head is fixedly connected with a second composite ceramic wear-resistant layer, the upper end of the terminal head is provided with an isolation assembly used for isolating concrete during embedding, and the outer wall of the terminal head is fixedly connected with a second composite ceramic wear-resistant layer. The bottom end of the terminal head is provided with a fitting assembly used for connecting and fixing a terminal rod body, the lower end of the fitting assembly is provided with a length adjusting assembly used for manufacturing according to the length requirement of the terminal, and the lower end of the length adjusting assembly is provided with a second adjusting assembly used for adjusting the position of the rod body of the terminal. One side of the second adjusting assembly is provided with a terminal tail assembly which is used for adjusting the position according to the required shape of the terminal, so that the member can adjust the shape of a terminal rod body according to the on-site shape requirement, the terminal can be accurately adjusted according to the requirement, and the application range of the device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of railway earthing terminals, and specifically, to a subgrade-type earthing terminal for railway continuous ground wires. Background Art

[0002] Railway earthing terminals are a very important part of the railway system. They play the role of connecting railway tracks and the ground, and play an important role in ensuring the safe operation of the railway system. Earthing terminals for railways are widely used in electrified high-speed railways and are generally cast with anti-corrosion stainless steel and directly poured into cable troughs or other concrete products.

[0003] A Chinese patent discloses an earthing terminal for railway engineering, with the publication number CN219067258U. It is proposed in the text that "an earthing terminal for railway engineering includes: a wiring terminal structure having at least one end head; a collar structure slidably and separably sleeved outside the end head. It solves the technical problem that there are easily gaps or voids between the end of the earthing terminal and the formwork in the prior art. After the concrete is integrally poured, the concrete slurry will fill into the gaps or voids and solidify. It is difficult to find the position of the earthing terminal after the formwork is removed, resulting in chiseling the concrete to find it or re-embedding it, causing difficulties in construction." When the above utility model is in use, it can fit well with the concrete more closely, reducing the gap between the joint and the formwork, thereby increasing the stability of embedding. At the same time, after the device is buried by the concrete, the terminal interface part will not form a closed mode, which is convenient for the staff to search. However, the shape of the device is single, so that the device cannot be adjusted according to different railway embedding modes, resulting in the device being applicable to railway embeddings in specific modes, thus reducing the applicable range of the device. Therefore, it is very necessary to design a subgrade-type earthing terminal for railway continuous ground wires. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a subgrade-type earthing terminal for railway continuous ground wires, which solves the problem that the shape of the device in the related technology is single, so that the device cannot be adjusted according to different railway embedding modes, resulting in the device being applicable to railway embeddings in specific modes, thus reducing the applicable range of the device.

[0005] The technical solution of the utility model is as follows:

[0006] A subgrade type grounding terminal for a railway continuous ground wire, comprising a terminal head, an outer wall of the terminal head is fixedly connected with a second composite ceramic wear-resistant layer, an isolation component is arranged at an upper end of the terminal head for isolating concrete during embedding, a fitting component is arranged at a bottom end of the terminal head for connecting and fixing a terminal rod body, a length adjusting component is arranged at a lower end of the fitting component for manufacturing according to the length requirement of the terminal, a second adjusting component is arranged at a lower end of the length adjusting component for adjusting the position of the rod body of the terminal, and a terminal tail component is arranged at one side of the second adjusting component for position adjustment according to the required shape of the terminal.

[0007] Preferably, the isolation component includes an isolation sleeve snap-fitted at a center of the terminal head, an oil-resistant wear-resistant layer is bonded to a top end of the terminal head, and the oil-resistant wear-resistant layer is attached to a bottom surface of a head of the isolation sleeve.

[0008] Preferably, the fitting component includes four fitting seats fixedly connected to a bottom end of the terminal head, the four fitting seats are annularly arranged at the bottom end of the terminal head, an outer wall of the four fitting seats is snap-fitted with a fitting sleeve, inner walls of the fitting seats are threadedly connected with four reinforcing screws, the four reinforcing screws are annularly arranged on an inner wall of the fitting sleeve, the number of the reinforcing screws is the same as that of the fitting seats and they correspond one by one, an outer wall of the fitting seat is snap-fitted with a composite ceramic fiber sleeve, and a top end of the composite ceramic fiber sleeve is snap-fitted with an outer wall of the fitting seat.

[0009] Preferably, the length adjusting component includes a length adjusting rod body fixedly connected to a bottom end of the fitting sleeve, and a first composite ceramic wear-resistant layer is fixedly connected to an outer wall of the length adjusting rod body.

[0010] Preferably, the second adjusting component includes a first trapezoidal snap-fitting block fixedly connected to a bottom end of the length adjusting rod body, an adjusting seat is arranged at the bottom end of the length adjusting rod body, a first snap-fitting groove is formed in an outer wall of a front side top end of the adjusting seat, the first snap-fitting groove is snap-fitted with an outer wall of the first trapezoidal snap-fitting block, a first fixing screw is threadedly connected to a rear end inner wall of the first snap-fitting groove, and the first fixing screw is threadedly connected with an inner wall of the first trapezoidal snap-fitting block.

[0011] Preferably, the second adjusting component further includes a second trapezoidal snap-fitting groove formed in an outer wall of a rear side right end of the adjusting seat, a second trapezoidal snap-fitting block is snap-fitted with an inner wall of the second trapezoidal snap-fitting groove, a second fixing screw is threadedly connected to a front side inner wall of the second trapezoidal snap-fitting groove, and the second fixing screw is threadedly connected with an inner wall of the second trapezoidal snap-fitting block.

[0012] Preferably, the second adjusting component further includes a third trapezoidal engaging groove formed on the outer wall of the rear bottom end of the adjusting seat. The inner wall of the third trapezoidal engaging groove is engaged with a third trapezoidal engaging block. The front inner wall of the third trapezoidal engaging groove is threadedly connected with a third fixing screw, and the third fixing screw is threadedly connected with the inner wall of the third trapezoidal engaging block.

[0013] Preferably, the terminal tail component includes a tail rod fixedly connected to the right end of the second trapezoidal engaging block, and a third composite ceramic wear-resistant layer is fixedly connected to the outer wall of the tail rod.

[0014] Advantages of the present utility model:

[0015] When the terminal needs to be adjusted into a straight line, the second trapezoidal engaging block is engaged and fixed with the third trapezoidal engaging groove, and at the same time, the second trapezoidal engaging groove is engaged and fixed with the third trapezoidal engaging block, so that the terminal forms a straight line. If the terminal needs to be in an L shape, the second trapezoidal engaging block is engaged and fixed with the second trapezoidal engaging groove, and at the same time, the third trapezoidal engaging block is engaged and fixed with the third trapezoidal engaging groove, so that the terminal forms an L-shaped component. Thus, the component can adjust the shape of the terminal rod according to the shape requirements on site, so that the terminal can be adjusted more accurately according to the requirements. At the same time, the length of the adjusting rod or the tail rod is adjusted and customized according to the length of the rod required by the terminal on site. By adjusting the local length of the component, the component can be made to fit the size required on site as much as possible, while avoiding the trouble caused by overall adjustment, thereby improving the adaptation range of the device and the practical efficiency of the device. Description of the Drawings

[0016] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0017] Figure 1 It is a front view three-dimensional structure diagram of the present utility model;

[0018] Figure 2 It is a front view unfolded three-dimensional structure diagram of the present utility model;

[0019] Figure 3 It is a three-dimensional structure diagram of the length adjustment component of the present utility model;

[0020] Figure 4 It is a three-dimensional structure diagram of the terminal head of the present utility model;

[0021] Figure 5 It is a partial three-dimensional structure diagram of the second adjusting component of the present utility model;

[0022] Figure 6 It is a partial three-dimensional structure diagram of the second adjusting component of the present utility model

[0023] In the figure: 1. Terminal head; 2. Isolation component; 201. Isolation sleeve; 202. Oil-based wear-resistant layer; 3. Fitting component; 301. Fitting seat; 302. Fitting sleeve; 303. Reinforcing screw; 305. Composite ceramic fiber sleeve; 4. Length adjustment component; 401. Length adjustment rod; 402. First composite ceramic wear-resistant layer; 5. Second composite ceramic wear-resistant layer; 6. Second adjustment component; 601. First trapezoidal engaging block; 602. Adjusting seat; 603. First engaging groove; 604. First fixing screw; 605. Second trapezoidal engaging block; 606. Second trapezoidal engaging groove; 607. Second fixing screw; 608. Third trapezoidal engaging block; 609. Third trapezoidal engaging groove; 610. Third fixing screw; 7. Terminal tail component; 701. Tail rod; 702. Third composite ceramic wear-resistant layer. Specific implementation mode

[0024] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

[0025] As Figure 1-2 shown, this embodiment proposes a subgrade-type grounding terminal for railway through ground wires, including a terminal head 1. The outer wall of the terminal head 1 is fixedly connected with a second composite ceramic wear-resistant layer 5. An isolation component 2 is arranged at the upper end of the terminal head 1 for isolating the concrete during burial. A fitting component 3 is arranged at the bottom end of the terminal head 1 for connecting and fixing the terminal rod. A length adjustment component 4 is arranged at the lower end of the fitting component 3 for manufacturing according to the terminal length requirement. A second adjustment component 6 is arranged at the lower end of the length adjustment component 4 for adjusting the position of the terminal rod. A terminal tail component 7 is arranged on one side of the second adjustment component 6 for adjusting the position according to the required shape of the terminal. The isolation component 2 includes an isolation sleeve 201 snap-connected to the center of the terminal head 1. An oil-based wear-resistant layer 202 is bonded to the top end of the terminal head 1. The oil-based wear-resistant layer 202 is in contact with the bottom surface of the head of the isolation sleeve 201. The first composite ceramic wear-resistant layer 402 is made of ceramic composite material, having good wear resistance and flame retardancy, and can better protect the terminal head 1. When burying this device, place this device in the corresponding position and then pour concrete. After the concrete solidifies, pull out the isolation sleeve 201 so that the terminal head 1 can be separated from the concrete, thus facilitating later search. At the same time, the top surface of the oil-based wear-resistant layer 202 is an oil-based layer, which facilitates separating the isolation sleeve 201 from the oil-based wear-resistant layer 202 after completion of burial.

[0026] As Figure 1-4 shown, the fitting component 3 includes four fitting seats 301 fixedly connected to the bottom end of the terminal head 1. The four fitting seats 301 are annularly arrayed at the bottom end of the terminal head 1. A fitting sleeve 302 can be connected to the outer walls of the four fitting seats 301 in a fitting manner. Four reinforcing screws 303 are threadedly connected to the inner walls of the fitting seats 301. The four reinforcing screws 303 are annularly arrayed on the inner wall of the fitting sleeve 302. The number of the reinforcing screws 303 is the same as that of the fitting seats 301 and they correspond to each other one by one. A composite ceramic fiber sleeve 305 is snap-fitted to the outer wall of the fitting seat 301. The top end of the composite ceramic fiber sleeve 305 is snap-fitted to the outer wall of the fitting seat 301. The length adjustment component 4 includes a length adjustment rod body 401 fixedly connected to the bottom end of the fitting sleeve 302. A first composite ceramic wear-resistant layer 402 is fixedly connected to the outer wall of the length adjustment rod body 401. The bottom end and the inner wall of the fitting seat 301 fit with the groove inside the fitting seat 301, so as to reduce the phenomenon that the rod body shifts due to the overly smooth contact surface. After the fitting of this part is completed, the reinforcing screw 303 is fixed inside the fitting sleeve 302 and the fitting seat 301, so that the fitting sleeve 302 and the fitting seat 301 are fixed together, thereby strengthening the connection position between the fitting seat 301 and the fitting sleeve 302. At the same time, the composite ceramic fiber sleeve 305 protects the outer walls of the fitting seat 301 and the fitting sleeve 302, increasing the wear resistance of this position.

[0027] As Figure 1-6As shown in the figure, the second adjustment component 6 includes a first trapezoidal engaging block 601 fixedly connected to the bottom end of the length adjustment rod body 401. An adjustment seat 602 is provided at the bottom end of the length adjustment rod body 401. A first engaging groove 603 is formed in the outer wall of the front side top end of the adjustment seat 602. The first engaging groove 603 is engaged with the outer wall of the first trapezoidal engaging block 601. A first fixing screw 604 is threadedly connected to the inner wall of the rear end of the first engaging groove 603. The first fixing screw 604 is threadedly connected to the inner wall of the first trapezoidal engaging block 601. The second adjustment component 6 further includes a second trapezoidal engaging groove 606 formed in the outer wall of the rear right end of the adjustment seat 602. A second trapezoidal engaging block 605 is engaged with the inner wall of the second trapezoidal engaging groove 606. A second fixing screw 607 is threadedly connected to the inner wall of the front side of the second trapezoidal engaging groove 606. The second fixing screw 607 is threadedly connected to the inner wall of the second trapezoidal engaging block 605. The second adjustment component 6 further includes a third trapezoidal engaging groove 609 formed in the outer wall of the rear bottom end of the adjustment seat 602. A third trapezoidal engaging block 608 is engaged with the inner wall of the third trapezoidal engaging groove 609. A third fixing screw 610 is threadedly connected to the inner wall of the front side of the third trapezoidal engaging groove 609. The third fixing screw 610 is threadedly connected to the inner wall of the third trapezoidal engaging block 608. The terminal tail component 7 includes a tail rod body 701 fixedly connected to the right end of the second trapezoidal engaging block 605. A third composite ceramic wear-resistant layer 702 is fixedly connected to the outer wall of the tail rod body 701. The third composite ceramic wear-resistant layer 702 outside the tail rod body 701 can increase the wear resistance of the tail rod body 701 and has good flame retardancy at the same time. The length of the length adjustment rod body 401 is determined according to the required height of the terminal rod body. After the determination is completed, the fitting sleeve 302 is welded to the top end of the length adjustment rod body 401, and at the same time, the first trapezoidal engaging block 601 is welded to the bottom end of the length adjustment rod body 401. Then, the welded first trapezoidal engaging block 601 is engaged with the first engaging groove 603 and fixed by the first fixing screw 604. At the same time, it is adjusted according to whether the terminal required at the site is straight or L-shaped. If a straight type is required, the second trapezoidal engaging block 605 is engaged and fixed with the third trapezoidal engaging groove 609, and at the same time, the second trapezoidal engaging groove 606 is engaged and fixed with the third trapezoidal engaging block 608, so that the terminal forms a straight type. If an L-shaped is required, the second trapezoidal engaging block 605 is engaged and fixed with the second trapezoidal engaging groove 606, and at the same time, the third trapezoidal engaging block 608 is engaged and fixed with the third trapezoidal engaging groove 609, so that the terminal forms an L-shaped member. At the same time, the second trapezoidal engaging block 605 is a spare engaging part, which is convenient for replacing the position with other engaging parts and filling the remaining vacant positions on the adjustment seat 602.

[0028] In this embodiment, when in use, when a straight rod terminal is needed, first snap the isolation sleeve 201 onto the center of the top end of the terminal head 1. At the same time, customize the length of the length adjustment rod body 401 according to the required length of the terminal. After production, weld the fitting sleeve 302 to the top end of the length adjustment rod body 401. At the same time, snap the lower half of the composite ceramic fiber sleeve 305 onto the outside of the fitting sleeve 302. Align the fitting seat 301 at the bottom end of the terminal head 1 with the inner groove direction of the fitting sleeve 302, and move the terminal head 1 downward so that the terminal head 1 drives the fitting seat 301 to move downward, causing the fitting seat 301 to snap into the inner groove position of the fitting sleeve 302. At the same time, the outer wall of the fitting seat 301 is snapped with the inner wall of the upper half of the composite ceramic fiber sleeve 305. At the same time, pass the rod bodies of the four reinforcing screws 303 through the small holes inside the composite ceramic fiber sleeve 305 and align them with the small holes inside the fitting sleeve 302, so that the rod bodies of the reinforcing screws 303 are threadedly connected to the inner wall of the fitting sleeve 302. At the same time, the end of the rod body of the reinforcing screw 303 is threadedly connected to the inner wall of the fitting seat 301, so that the fitting seat 301, the fitting sleeve 302, the composite ceramic fiber sleeve 305, and the reinforcing screw 303 are fixed together. At the same time, align the mouths of the first trapezoidal engaging block 601 at the bottom end of the length adjustment rod body 401 and the first engaging groove 603 at the top end of the adjustment seat 602, and then move backward so that the first trapezoidal engaging block 601 snaps into the first engaging groove 603. At the same time, pass the first fixing screw 604 through the small hole at the top rear of the adjustment seat 602 and threadedly connect it with the small hole inside the first trapezoidal engaging block 601, so that the first fixing screw 604 fixes the first engaging groove 603 and the first trapezoidal engaging block 601 together. At the same time, rotate the third trapezoidal engaging block 608 with the tail rod body 701 to the vertical state, and snap the third trapezoidal engaging block 608 with the second trapezoidal engaging groove 606. At the same time, fix the second trapezoidal engaging groove 606 and the third trapezoidal engaging block 608 together by threading through the second fixing screw 607. At the same time, snap the second trapezoidal engaging block 605 into the third trapezoidal engaging groove 609, and at the same time, fix the third trapezoidal engaging groove 609 and the second trapezoidal engaging block 605 together by threading through the third fixing screw 610, thus completing the adjustment of the straight-line terminal rod body. When the device needs to be adjusted to an L-shaped rod body, rotate the third trapezoidal engaging block 608 with the tail rod body 701 to the horizontal state, align the mouths of the third trapezoidal engaging block 608 and the third trapezoidal engaging groove 609, and then move forward so that the third trapezoidal engaging block 608 snaps into the third trapezoidal engaging groove 609. At the same time, align the third fixing screw 610 with the small hole at the rear end of the third trapezoidal engaging groove 609, and fix the third fixing screw 610, the third trapezoidal engaging groove 609, and the third trapezoidal engaging block 608 together by threading. At the same time, snap the second trapezoidal engaging block 605 with the second trapezoidal engaging groove 606 together,And the second trapezoidal engaging groove 606 and the second trapezoidal engaging block 605 are fixed together by the second fixing screw 607, thus completing the adjustment of the L-shaped terminal rod body.

[0029] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A roadbed type grounding terminal for a railway through-ground wire, comprising a terminal head (1), characterized in that: The outer wall of the terminal head (1) is fixedly connected with a second composite ceramic wear-resistant layer (5); the upper end of the terminal head (1) is provided with an isolation component (2) for isolating concrete during burial; the bottom end of the terminal head (1) is provided with a mating component (3) for connecting and fixing the terminal rod body; the lower end of the mating component (3) is provided with a length adjustment component (4) for making the terminal according to the required length; the lower end of the length adjustment component (4) is provided with a second adjustment component (6) for adjusting the position of the terminal rod body; and a terminal tail component (7) is provided on one side of the second adjustment component (6) for adjusting the position according to the required shape of the terminal.

2. A roadbed type grounding terminal for a railway through-ground wire according to claim 1, characterized in that: The isolation assembly (2) comprises an isolation sleeve (201) snap-fitted to the centre of the terminal head (1); an oily wear-resistant layer (202) is bonded to the top of the terminal head (1); the oily wear-resistant layer (202) is fitted to the bottom surface of the head of the isolation sleeve (201).

3. A roadbed type grounding terminal for a railway through-ground wire according to claim 1, characterized in that: The mating assembly (3) comprises four mating seats (301) fixedly connected to the bottom end of the terminal head (1), the four mating seats (301) are arranged in an annular array at the bottom end of the terminal head (1), the outer walls of the four mating seats (301) can be engaged with a mating sleeve (302), the inner wall of the mating seat (301) is threadedly connected with four reinforcing screws (303), the four reinforcing screws (303) are arranged in an annular array on the inner wall of the mating sleeve (302), the number of the reinforcing screws (303) is the same as that of the mating seats (301), and they correspond one to one, the outer wall of the mating seat (301) is engaged with a composite ceramic fiber sleeve (305), and the top end of the composite ceramic fiber sleeve (305) is engaged with the outer wall of the mating seat (301).

4. A roadbed type grounding terminal for a railway through-ground wire according to claim 3, characterized in that: The length adjustment component (4) comprises a length adjustment rod body (401) fixedly connected to the bottom end of the fitting sleeve (302), and the outer wall of the length adjustment rod body (401) is fixedly connected to a first composite ceramic wear-resistant layer (402).

5. A roadbed type grounding terminal for a railway through-ground wire according to claim 4, characterized in that: The second adjustment component (6) comprises a first trapezoidal engaging block (601) fixedly connected to the bottom end of the length adjustment rod body (401); an adjustment seat (602) is provided at the bottom end of the length adjustment rod body (401); a first engaging groove (603) is provided on the outer wall of the front top end of the adjustment seat (602); the first engaging groove (603) is engaged with the outer wall of the first trapezoidal engaging block (601); a first fixing screw (604) is threadedly connected to the inner wall of the rear end of the first engaging groove (603); and the first fixing screw (604) is threadedly connected to the inner wall of the first trapezoidal engaging block (601).

6. A roadbed type grounding terminal for a railway through-ground wire according to claim 5, characterized in that: The second adjustment component (6) further comprises a second trapezoidal engaging groove (606) formed on the outer wall of the right end of the rear side of the adjustment seat (602); the inner wall of the second trapezoidal engaging groove (606) is engaged with a second trapezoidal engaging block (605); the front inner wall of the second trapezoidal engaging groove (606) is threadedly connected with a second fixing screw (607); the second fixing screw (607) is threadedly connected to the inner wall of the second trapezoidal engaging block (605).

7. A roadbed type grounding terminal for a railway through-ground wire according to claim 5, characterized in that: The second adjustment component (6) further comprises a third trapezoidal engaging groove (609) formed on the outer wall of the rear bottom end of the adjustment seat (602); the inner wall of the third trapezoidal engaging groove (609) is engaged with a third trapezoidal engaging block (608); the front inner wall of the third trapezoidal engaging groove (609) is threadedly connected with a third fixing screw (610); the third fixing screw (610) is threadedly connected to the inner wall of the third trapezoidal engaging block (608).

8. A roadbed type grounding terminal for a railway through-ground wire according to claim 6, characterized in that: The terminal tail assembly (7) comprises a tail rod body (701) fixedly connected to the right end of the second trapezoidal locking block (605), and a third composite ceramic wear-resistant layer (702) is fixedly connected to the outer wall of the tail rod body (701).

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