An expandable nylon sleeve for pre-sleeve repair

Abstract

The utility model provides a kind of for embedded sleeve repair expansion type nylon cover, comprising: expansion nylon cover;The expansion nylon cover includes installation pipe, first outer thread layer, mounting hole, first internal thread hole, opening groove and patch, the first outer thread layer is set to the outer surface of the installation pipe, the mounting hole is opened in the middle of the installation pipe top, the first internal thread hole is opened in the middle of the mounting hole bottom portion.The utility model provides a kind of for embedded sleeve repair expansion type nylon cover, by the bolt in the second internal thread hole of embedded nylon sleeve pipe is taken out, after expansion nylon cover is installed into the inside of second internal thread hole, after the first internal thread hole is installed with compatible turnout bolt, so that the ring body expansion thread is engaged in the inside of second internal thread hole, the device structure is simple, and practicality is strong, solve the problem of embedded nylon sleeve pipe internal tooth failure, and reduce replacement frequency, reduce the labor intensity of maintenance worker.

Description

Technical Field

[0001] This utility model relates to the field of pre-embedded nylon sleeve repair technology, and in particular to an expandable nylon sleeve for pre-embedded sleeve repair. Background Technology

[0002] The nylon sleeve embedded in the concrete sleeper is a key connecting component in the railway track system. It is mainly used to reliably fix the rail and the sleeper. It is made of high-strength nylon as the base material and is injection molded by a special process. It has good insulation, corrosion resistance and impact resistance.

[0003] During construction, nylon sleeves are pre-embedded in concrete sleepers. Through internal threads and anchor bolts, the rails are firmly fixed to the sleepers. This effectively buffers the vibrations and impacts generated during train operation, reducing the risk of bolt loosening. At the same time, the insulating properties of nylon prevent current leakage, ensuring the normal operation of track circuits. It also has a long service life and low maintenance costs, making it widely used in high-speed railways, urban rail transit, and other fields. It is of great significance for improving track stability and safety.

[0004] The nylon sleeves embedded in concrete sleepers may fail due to the extension of their service life. The existing technology for maintaining failed nylon sleeves is to remove and replace them. However, the operation of removing the nylon sleeves is relatively complicated and increases the labor intensity of maintenance workers.

[0005] Therefore, it is necessary to provide an expandable nylon sleeve for the repair of pre-embedded sleeves to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides an expandable nylon sleeve for repairing pre-embedded sleeves, which solves the problem that the existing technology uses the method of removing and replacing failed concrete sleeper pre-embedded nylon sleeves for maintenance, but the operation steps for removing the nylon sleeve are relatively cumbersome, increasing the labor intensity of maintenance workers.

[0007] To solve the above-mentioned technical problems, this utility model provides an expandable nylon sleeve for repairing pre-embedded sleeves, comprising:

[0008] An expandable nylon sleeve includes an installation tube, a first external thread layer, an installation hole, a first internal thread hole, slots, and a patch. The first external thread layer is disposed on the outer surface of the installation tube. The installation hole is located in the middle of the top of the installation tube. The first internal thread hole is located in the middle of the bottom of the installation hole. The patch is fixedly installed on the top of the installation tube. Four slots are equidistantly disposed around the top of the installation tube.

[0009] A pre-embedded nylon sleeve is provided on the outer surface of the expanded nylon sleeve.

[0010] Preferably, the pre-embedded nylon sleeve includes a sleeve body, a setting hole, a second internal threaded hole, and a second external threaded layer. The setting hole is located in the middle of the top of the sleeve body, the second internal threaded hole is located in the middle of the bottom of the setting hole, and the second external threaded layer is disposed on the outer surface of the sleeve body.

[0011] Preferably, a protrusion is fixedly installed on the bottom of the patch.

[0012] Preferably, a limiting groove is formed around the bottom of the setting hole.

[0013] Preferably, the internal threads of the first internally threaded hole are engaged with a fork bolt.

[0014] Preferably, a slot is provided on one side of the inner wall of the setting hole.

[0015] Preferably, the card slot and the patch are compatible.

[0016] Compared with related technologies, the expandable nylon sleeve for repairing pre-embedded sleeves provided by this utility model has the following beneficial effects:

[0017] This utility model provides an expandable nylon sleeve for repairing pre-embedded sleeves. After removing the bolt from the second internal threaded hole of the pre-embedded nylon sleeve, the expandable nylon sleeve is installed into the inside of the second internal threaded hole. After installing a matching fork bolt in the first internal threaded hole, the expansion thread of the collar body engages with the inside of the second internal threaded hole. This device has a simple structure, strong practicality, solves the problem of internal thread failure of pre-embedded nylon sleeves, reduces the number of replacements, and reduces the labor intensity of maintenance workers. Attached Figure Description

[0018] Figure 1 A schematic diagram of the first embodiment of an expandable nylon sleeve for repairing pre-embedded sleeves provided by this utility model;

[0019] Figure 2 for Figure 1 The diagram shows the structure of the expanded nylon sleeve.

[0020] Figure 3 for Figure 2 The diagram shown is a bottom view of the expanded nylon sleeve.

[0021] Figure 4 for Figure 2 The diagram shows the structure of the pre-embedded nylon sleeve.

[0022] Figure 5 This is a schematic diagram of the second embodiment of an expandable nylon sleeve for repairing pre-embedded sleeves provided by this utility model.

[0023] The following are the labels in the diagram: 1. Expanding nylon sleeve, 11. Mounting tube, 12. First external thread layer, 13. Mounting hole, 14. First internal thread hole, 15. Groove, 16. Adhesive block, 2. Embedded nylon sleeve, 21. Sleeve body, 22. Setting hole, 23. Second internal thread hole, 24. Second external thread layer, 3. Fork bolt, 4. Protrusion, 5. Limiting groove, 6. Slot. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] First Embodiment

[0026] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic diagram of the first embodiment of an expandable nylon sleeve for repairing pre-embedded sleeves provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the expanded nylon sleeve. Figure 3 for Figure 2 The diagram shown is a bottom view of the expanded nylon sleeve. Figure 4 for Figure 2 The diagram shows a pre-embedded nylon sleeve structure. An expandable nylon sleeve for repairing pre-embedded sleeves includes:

[0027] An expandable nylon sleeve 1 includes an installation tube 11, a first external thread layer 12, an installation hole 13, a first internal thread hole 14, slots 15, and a patch 16. The first external thread layer 12 is disposed on the outer surface of the installation tube 11. The installation hole 13 is opened in the middle of the top of the installation tube 11. The first internal thread hole 14 is opened in the middle of the bottom of the installation hole 13. The patch 16 is fixedly installed on the top of the installation tube 11. Four slots 15 are equidistantly opened around the top of the installation tube 11.

[0028] A pre-embedded nylon sleeve 2 is provided on the outer surface of the expanded nylon sleeve 1.

[0029] The pre-embedded nylon sleeve 2 includes a sleeve body 21, a setting hole 22, a second internal threaded hole 23, and a second external threaded layer 24. The setting hole 22 is opened in the middle of the top of the sleeve body 21, the second internal threaded hole 23 is opened in the middle of the bottom of the setting hole 22, and the second external threaded layer 24 is disposed on the outer surface of the sleeve body 21.

[0030] The bottom of the patch 16 is fixedly installed with a protrusion 4.

[0031] Limiting grooves 5 are provided around the bottom of the setting hole 22.

[0032] The internal threads of the first internal threaded hole 14 are engaged with the fork bolt 3.

[0033] The mounting tube 11 is divided into four parts by four slots 15. As the fork bolt 3 is pressed, the mounting tube 11 is squeezed and expanded and the second internal threaded hole 23 is completely squeezed and fitted together.

[0034] The working principle of the expandable nylon sleeve for repairing pre-embedded sleeves provided by this utility model is as follows:

[0035] During operation, the bolts in the second internal threaded hole 23 of the pre-embedded nylon sleeve 2 are first removed, and then the expansion nylon sleeve 1 is installed into the inside of the second internal threaded hole 23. The installation tube 11 is installed into the inside of the first internal threaded hole 14. Then, the fork bolt 3 that is adapted to the first internal threaded hole 14 is threaded into the inside of the first internal threaded hole 14. As the fork bolt 3 is squeezed, the installation tube 11 is squeezed and expanded through the slot 15, so that the first external thread layer 12 is attached to the surface of the second internal threaded hole 23.

[0036] At the same time, the pad 16 is squeezed open. As the thread of the fork bolt 3 engages with the first internal thread hole 14 and exerts a downward squeezing force, the pad 16 is squeezed open. As the fork bolt 3 continues to move downward, the protrusion 4 is inserted into the interior of the limiting groove 5 for limiting.

[0037] Compared with related technologies, the expandable nylon sleeve for repairing pre-embedded sleeves provided by this utility model has the following beneficial effects:

[0038] This utility model provides an expandable nylon sleeve for repairing pre-embedded sleeves. After removing the bolt from the second internal threaded hole 23 of the pre-embedded nylon sleeve 2, the expandable nylon sleeve 1 is installed into the interior of the second internal threaded hole 23. After installing a matching fork bolt 3 into the first internal threaded hole 14, the expansion thread of the collar body 21 engages with the interior of the second internal threaded hole 23. This device has a simple structure, strong practicality, solves the problem of internal thread failure of the pre-embedded nylon sleeve 2, reduces the number of replacements, and reduces the labor intensity of maintenance workers.

[0039] Second Embodiment

[0040] Please refer to the following: Figure 5 Based on the first embodiment of this application, which provides an expandable nylon sleeve for repairing pre-embedded sleeves, the second embodiment of this application proposes another expandable nylon sleeve for repairing pre-embedded sleeves. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0041] Specifically, the second embodiment of this application provides an expansion nylon sleeve for repairing pre-embedded sleeves, which differs in that a slot 6 is provided on one side of the inner wall of the setting hole 22.

[0042] The card slot 6 and the patch 16 are compatible.

[0043] The working principle of the expandable nylon sleeve for repairing pre-embedded sleeves provided by this utility model is as follows:

[0044] During operation, the fork bolt 3 first engages with the first internal threaded hole 14, and the installation tube 11 is squeezed and expanded through the slot 15. As the fork bolt 3 continues to engage with the thread downwards, the installation tube 11 is completely pushed into the interior of the second internal threaded hole 23. The bottom of the patch 16 is attached to the bottom of the inner wall of the setting hole 22, and the patch 16 is embedded in the inside of the slot 6, which facilitates the mutual fixation of the expanded nylon sleeve 1 and the pre-embedded nylon sleeve 2.

[0045] Compared with related technologies, the expandable nylon sleeve for repairing pre-embedded sleeves provided by this utility model has the following beneficial effects:

[0046] This utility model provides an expandable nylon sleeve for repairing pre-embedded sleeves. The sleeve is threaded into the first internal threaded hole 14 by the fork bolt 3. After the installation tube 11 is expanded by squeezing through the slot 15, the patch 16 is embedded into the inside of the slot 6, which facilitates the mutual fixation of the expandable nylon sleeve 1 and the pre-embedded nylon sleeve 2, and improves the stability and connectivity of the installation of the expandable nylon sleeve 1 and the pre-embedded nylon sleeve 2.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An expandable nylon sleeve for repairing pre-embedded sleeves, characterized in that, include: An expandable nylon sleeve includes an installation tube, a first external thread layer, an installation hole, a first internal thread hole, slots, and a patch. The first external thread layer is disposed on the outer surface of the installation tube. The installation hole is located in the middle of the top of the installation tube. The first internal thread hole is located in the middle of the bottom of the installation hole. The patch is fixedly installed on the top of the installation tube. Four slots are equidistantly disposed around the top of the installation tube. A pre-embedded nylon sleeve is provided on the outer surface of the expanded nylon sleeve.

2. The expandable nylon sleeve for repairing pre-embedded sleeves according to claim 1, characterized in that, The pre-embedded nylon sleeve includes a sleeve body, a setting hole, a second internal threaded hole, and a second external threaded layer. The setting hole is located in the middle of the top of the sleeve body, the second internal threaded hole is located in the middle of the bottom of the setting hole, and the second external threaded layer is located on the outer surface of the sleeve body.

3. The expandable nylon sleeve for repairing pre-embedded sleeves according to claim 1, characterized in that, A protrusion is fixedly installed on the bottom of the patch.

4. An expandable nylon sleeve for repairing pre-embedded sleeves according to claim 2, characterized in that, Limiting grooves are formed around the bottom of the mounting hole.

5. An expandable nylon sleeve for repairing pre-embedded sleeves according to claim 1, characterized in that, The internal threads of the first internally threaded hole are engaged with a fork bolt.

6. An expandable nylon sleeve for repairing pre-embedded sleeves according to claim 2, characterized in that, A slot is provided on one side of the inner wall of the setting hole.

7. An expandable nylon sleeve for repairing pre-embedded sleeves according to claim 6, characterized in that, The card slot and the patch are compatible.

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