Split bolt convenient to disassemble

By improving the structural design and lubrication technology of tie bolts, the problems of difficult disassembly and damage to concrete caused by traditional tie bolts have been solved, achieving efficient disassembly and reuse.

CN223562520UActive Publication Date: 2025-11-18BEIJING ZETONG WATER PROCESSING CONSTRUCT CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202423150305.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-11-18
Estimated Expiration
2034-12-20

AI Technical Summary

Technical Problem

Traditional tie bolts are difficult to disassemble during building wall construction, and the removal process can easily damage the concrete surface, making some unusable.

Method used

A tie bolt structure comprising a threaded rod, a rotating ring, a rubber protective sleeve, an absorbent plate, and a lubricating oil drip ring was designed. Through threaded connection and the use of lubricating oil, friction and wear are reduced, ensuring smooth disassembly.

Benefits of technology

It enables efficient disassembly of tie bolts, protects the integrity of the concrete structure, and improves the reusability of formwork and the appearance quality of concrete.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223562520U_ABST
    Figure CN223562520U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of bolt installation, and discloses a split bolt convenient to disassemble, which comprises a threaded rod I. The left side of the threaded rod I is in threaded connection with a short column, the left side of the threaded rod I is in wheel connection with a rotating ring, and the upper end and the lower end of the rotating ring are fixedly connected with handles. The right side of the first threaded rod is in threaded connection with a nut, the outer side of the nut is slidably connected with a rubber protection sleeve, a threaded groove is formed in the inner wall of the left side of the rubber protection sleeve, the inner side of the nut is in threaded connection with a second threaded rod, the right end of the second threaded rod is fixedly connected with a long rod, and a protection mechanism is arranged on the right side of the first threaded rod. According to the utility model, the nut is used for fixing, then the short column and the rubber protective sleeve are fixed, and finally the handle is rotated to seal and fix the rubber protective sleeve, so that the integrity of a concrete structure can be kept, the dismantled part can be repeatedly used, and concrete is not easy to damage and pollute.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt installation technical field especially, relates to a convenient dismantling's post tensioning bolt. BACKGROUND

[0002] The post tensioning bolt adopts the round steel bolt of two end sleeve silk, also called the wall bolt, also has the long hole of flat steel two ends and uses the wedge iron to insert and fix the wedge tight, is used between the formwork of wall body inside and outside and is tied, bears the lateral pressure of concrete, ensures that the spacing of inside and outside formwork can satisfy the design requirement, is also the fulcrum of formwork and its support structure simultaneously, therefore, the arrangement of post tensioning bolt greatly influences the integrity, rigidity and strength of formwork structure.

[0003] The post tensioning bolt needs to carry out the theoretical calculation before use, determines the required pre-tightening force and stress state after fastening, needs to smear a layer of appropriate lubricant on the bolt and nut before installing the post tensioning bolt, so as to facilitate the smooth operation of subsequent fastening process, needs to tighten the nut gradually when starting to fasten the post tensioning bolt, simultaneously, needs to pay attention to keep the bolt and axial alignment, avoids the welding and shearing phenomenon caused under the lateral force condition, needs to measure the fastening torque of nut through the appropriate tool after completing the fastening of post tensioning bolt, and compares according to the theoretical calculation value, to ensure that the expected pre-tightening force has been reached.

[0004] In the concrete pouring process, the concrete can produce lateral pressure to the formwork, the post tensioning bolt can pass through the formwork and pull the formwork on both sides tightly, thereby resisting the lateral pressure of concrete, when installing the formwork, the position and fastening degree of post tensioning bolt can be adjusted, so that the formwork can keep the uniform spacing, and the thickness of concrete component is guaranteed to be consistent, but in the construction of building wall, the post tensioning bolt is difficult to disassemble, and the traditional difficult-to-disassemble post tensioning bolt can cause damage to the concrete surface during the dismounting process due to the operation of pulling and prying, and the dismounting part cannot be reused. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a convenient dismantling's post tensioning bolt, aims at improving the problems of difficult disassembly of post tensioning bolt in the construction of building wall in the prior art, and the traditional difficult-to-disassemble post tensioning bolt can cause damage to the concrete surface during the dismounting process due to the operation of pulling and prying, and the dismounting part cannot be reused.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a convenient dismantling's counter pull bolt, including the threaded rod one, the left side threaded connection of threaded rod one has the short column, the left side wheel of threaded rod one is connected with the rotating ring, the upper and lower ends of rotating ring are all fixedly connected with the handle, the right side threaded connection of threaded rod one has the nut, the outside slide connection of nut has the rubber protective sleeve, the left side inner wall of rubber protective sleeve is equipped with the thread groove, the inside threaded connection of nut has the threaded rod two, the right end fixedly connected with the long pole of threaded rod two, the right side of threaded rod one is provided with the protection mechanism, the protection mechanism is used for protecting the counter pull bolt and the formwork.

[0007] Through the above technical scheme: the left side of threaded rod one is connected with a short column through the thread, so that the whole structure is more stable, in order to facilitate operation, the left side of short column is also connected with a rotating ring, the upper and lower ends of rotating ring are all fixedly installed handle, facilitate rotating operation in the use process, the right side of threaded rod one is connected with a nut through the thread, the outside slide connection of nut is connected with a rubber protective sleeve, to prevent damage to the bolt in the use process, to a certain extent, realize the fixed function, the left side inner wall of rubber protective sleeve is equipped with a thread groove, so as to better cooperate with the short column.

[0008] As a further description of the above technical scheme:

[0009] The protection mechanism includes an absorbent sheet, the right side of the absorbent sheet is slidably connected with the left side of the nut, the left side of the absorbent sheet is slidably connected with a release agent discharge ring, the top end of the release agent discharge ring is communicated with a second small tube opening, the right side of the nut is fixedly connected with a sponge, the sponge is slidably connected with a lubricating oil drop ring, and the top end of the lubricating oil drop ring is communicated with a first small tube opening.

[0010] Through the above technical scheme: the right side of the absorbent sheet is connected with the left side of the nut through the sliding connection, so that the absorbent sheet can slide on the left side of the nut, thereby realizing its function, the left side of the absorbent sheet is also slidably connected with the release agent discharge ring, the top end of the release agent discharge ring is communicated with a second small tube opening, the second small tube opening is used to discharge the release agent, so as to ensure the realization of the function, the right side of the nut is fixedly connected with a sponge, the sponge is used to absorb the lubricating oil, and the sliding connection part of the sponge is also designed with a lubricating oil drop ring, the top end of the lubricating oil drop ring is communicated with a first small tube opening, the first small tube opening is used to drop the lubricating oil, which can effectively control the use amount of the lubricating oil and realize the lubricating effect.

[0011] As a further description of the above technical scheme:

[0012] The left end of the threaded rod one is fixedly connected with a protective column, and the top of the rubber protective sleeve is fixedly connected with a sign.

[0013] Through the technical scheme, the left end of the threaded rod one is fixedly connected with the protective column, and the top of the rubber protective sleeve is fixedly connected with the label, so that the product professionalism and traceability can be improved.

[0014] Further description is made to the technical scheme:

[0015] The outer walls of the upper and lower ends of the handle are fixedly connected with anti-skid sleeves, the right side of the short column is fixedly connected with a sealing ring, and the left side of the short column is fixedly connected with a protective sleeve two.

[0016] Through the technical scheme, the outer walls of the upper and lower ends of the handle are fixedly connected with anti-skid sleeves, the right side of the short column is fixedly connected with a sealing ring, and the left side of the short column is fixedly connected with a protective sleeve two.

[0017] Further description is made to the technical scheme:

[0018] The left end of the small pipe opening two is slidably connected with a sealing sleeve, and the middle portion of the sealing sleeve is slidably connected with the right end of the threaded rod one.

[0019] Through the technical scheme, the left end of the small pipe opening two is slidably connected with a sealing sleeve, and the middle portion of the sealing sleeve is slidably connected with the right end of the threaded rod one.

[0020] Further description is made to the technical scheme:

[0021] The left end of the sealing sleeve is slidably connected with a protective ring, and the middle portion of the protective ring is slidably connected with the right side of the threaded rod one.

[0022] Through the technical scheme, the left end of the sealing sleeve is slidably connected with a protective ring, and the middle portion of the protective ring is slidably connected with the right side of the threaded rod one.

[0023] Further description is made to the technical scheme:

[0024] The right side of the lubricating oil drop ring is slidably connected with a protective sleeve one, and the middle portion of the protective sleeve one is slidably connected with the left end of the threaded rod two.

[0025] Through the technical scheme, the right side of the lubricating oil droplet ring is slidably connected with the protective sleeve one, the middle part of the protective sleeve one is slidably connected with the left end of the threaded rod two, the stability and safety of the lubricating oil droplet ring are ensured, and the whole device is more flexible and convenient during use.

[0026] Further description is made to the technical scheme:

[0027] The right side of the protective sleeve one is slidably connected with a protective ring, and the middle part of the protective ring is slidably connected with the left side of the threaded rod two.

[0028] Through the technical scheme, the right side of the protective sleeve one is slidably connected with a protective ring, and the middle part of the protective ring is slidably connected with the left side of the threaded rod two, the stability and safety of the lubricating oil droplet ring are ensured, and the whole device is more flexible and convenient during use.

[0029] The utility model has the advantages of the following beneficial effects:

[0030] 1. In the utility model, the long rod fixedly connected with the threaded rod two is put into the wall body, then fixed through the nut, then the short column is screwedly connected with the threaded groove in the inner side of the rubber protective sleeve to complete the fixing, finally the handle is pushed into the rotating ring to complete the closed fixing of the rubber protective sleeve, so that the detachable counter pull bolt can make the formwork removal work more efficient, maintain the integrity of the concrete structure, the removed part can be repeatedly used, the construction is quick and convenient, and the concrete is not easy to damage and pollute.

[0031] 2. In the utility model, when the threaded connection is carried out, the lubricating oil on the right side of the nut is absorbed by the sponge and acts on the right side of the nut, the release agent on the left side of the nut is absorbed by the absorbing piece and finally acts on the left side of the nut, the lubricating oil can reduce the friction and wear between the screw rod and the formwork, the release agent can reduce the adhesion between the concrete and the counter pull bolt and the formwork, improve the reusability of the formwork, and help to improve the appearance quality of the concrete. DRAWINGS

[0032] Figure 1 It is a short column front side perspective view of the detachable counter pull bolt provided by the utility model;

[0033] Figure 2 It is a threaded rod two split view of the detachable counter pull bolt provided by the utility model;

[0034] Figure 3 It is a threaded rod one split view of the detachable counter pull bolt provided by the utility model;

[0035] Figure 4 It is a lubricating oil droplet ring split view of the detachable counter pull bolt provided by the utility model;

[0036] Figure 5 A rubber protective sleeve of the double-lap bolt convenient to disassemble is shown in the schematic view of the utility model;

[0037] Figure 6 A nut display view of the double-lap bolt convenient to disassemble is shown in the utility model.

[0038] Legend:

[0039] 1, threaded rod one; 2, protection mechanism; 201, absorption piece; 202, lubricating oil drop ring; 203, small pipe mouth one; 204, small pipe mouth two; 205, release agent discharge ring; 206, sponge; 3, threaded rod two; 4, long rod; 5, sign; 6, short column; 7, handle; 8, anti-skid sleeve; 9, protection column; 10, rotating ring; 11, nut; 12, sealing ring; 13, protection ring; 14, protection ring; 15, sealing sleeve; 16, protective sleeve one; 17, protective sleeve two; 18, rubber protective sleeve; 19, threaded groove. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0041] Please refer to the drawings of the embodiments in the utility model Figure 1 , the drawings of the embodiments in the utility model Figure 2 and the drawings of the embodiments in the utility model Figure 3The utility model provides an embodiment: a kind of convenient disassembly's opposed bolt, including threaded rod one 1, the left side threaded connection of threaded rod one 1 has short column 6, the left side wheel of threaded rod one 1 is connected with rotating ring 10, rotating ring 10's upper and lower end is fixedly connected with handle 7, the left side of threaded rod one 1 is connected with rotating ring 10 by screwing one short column 6, so that short column 6 can move on threaded rod one 1, the left side of threaded rod one 1 is connected with rotating ring 10, the upper and lower ends of rotating ring 10 are installed handle 7 by fixedly connected mode, it is convenient to operate in the use process, the right side threaded connection of threaded rod one 1 has nut 11, the outside sliding connection of nut 11 has rubber protective sleeve 18, thread groove 19 is set in the left side inner wall of rubber protective sleeve 18, the right side of threaded rod one 1 is connected with one nut 11 by screwing, the outside sliding connection of nut 11 has one rubber protective sleeve 18, thread groove 19 is set in the left side inner wall of rubber protective sleeve 18, to ensure that it cooperates with short column 6, the inside threaded connection of nut 11 has threaded rod two 3, the right end of threaded rod two 3 is fixedly connected with long rod 4, the right side of threaded rod one 1 is provided with protection mechanism 2, protection mechanism 2 is used for protecting opposed bolt and formwork, the inside of nut 11 is connected with another threaded rod two 3 by screwing, the right end of threaded rod two 3 is fixedly connected with a long rod 4, so that the structure of whole opposed bolt is more stable, to further protect opposed bolt and formwork, the right side of threaded rod one 1 is specially provided with a protection mechanism 2, and this protection mechanism 2 can effectively prevent that opposed bolt and formwork are damaged accidentally in construction process;

[0042] Specifically, the left side of threaded rod one 1 is connected with a short column 6 by screwing, the short column 6 can move on the threaded rod one 1 to facilitate the adjustment of position, the left side of threaded rod one 1 is connected with a rotating ring 10, which can facilitate the operation in the use process, the upper and lower ends of the rotating ring 10 are installed handle 7 by fixedly connected mode, so that the operation is more convenient, the right side of threaded rod one 1 is connected with a nut 11 by screwing, the outside of the nut 11 is connected with a rubber protective sleeve 18, the left side inner wall of the rubber protective sleeve 18 is provided with a thread groove 19 to ensure that it cooperates with the short column 6, the inside of the nut 11 is connected with another threaded rod two 3 by screwing, the right end of the threaded rod two 3 is fixedly connected with a long rod 4, and such design makes the structure of the whole opposed bolt more stable, which can withstand greater force.

[0043] Please refer to the accompanying drawings Figure 1 , the accompanying drawings Figure 4 and the accompanying drawings Figure 6, the protection mechanism 2 includes the absorption sheet 201, the right side of the absorption sheet 201 is slidably connected with the left side of the nut 11, the left side of the absorption sheet 201 is slidably connected with the release agent discharge ring 205, the right side of the absorption sheet 201 is slidably connected with the left side of the nut 11, so that the absorption sheet 201 can effectively absorb, on the left side of the absorption sheet 201, the release agent discharge ring 205 is arranged, which mainly functions to discharge the release agent, the top end of the release agent discharge ring 205 is communicated with the small pipe opening two 204, the right side of the nut 11 is fixedly connected with the sponge 206, the sponge 206 is slidably connected with the lubricating oil drop ring 202, the top end of the lubricating oil drop ring 202 is communicated with the small pipe opening one 203, the top end of the release agent discharge ring 205 is communicated with the outside through a small pipe opening two 204, so that the release agent can be smoothly discharged, the right side of the nut 11 is fixedly connected with the sponge 206, the main function of the sponge 206 is to absorb lubricating oil for lubrication, the sliding connection part of the sponge 206 is provided with the lubricating oil drop ring 202, the top end of the lubricating oil drop ring 202 is communicated with the outside through a small pipe opening one 203, the lubricating oil drop ring 202 can collect and discharge the excess lubricating oil, so as to ensure the lubrication effect and the cleanliness of the equipment during production. Through the design, the protection mechanism 2 can effectively treat and discharge the release agent and the lubricating oil, so as to ensure the normal operation of the equipment and the quality of the product;

[0044] Specifically, the right side of the absorption sheet 201 is connected with the left side of the nut 11 in a sliding manner, so that the absorption sheet 201 can effectively absorb, on the left side of the absorption sheet 201, the release agent discharge ring 205 is arranged, which mainly functions to effectively discharge the release agent, the top end of the release agent discharge ring 205 is communicated with the outside through a small pipe opening two 204, so that the release agent can be smoothly discharged, the right side of the nut 11 is fixedly connected with the sponge 206, the main function of the sponge 206 is to absorb lubricating oil for lubrication.

[0045] Please refer to the accompanying drawings Figure 2 , the accompanying drawings Figure 4 and the accompanying drawings Figure 5The left end of the small pipe port two 204 is slidably connected with the sealing sleeve 15, the middle part of the sealing sleeve 15 is slidably connected with the right end of the threaded rod one 1, the left end of the sealing sleeve 15 is slidably connected with the protective ring 14, the left end of the small pipe port two 204 is slidably connected with the sealing sleeve 15, so as to ensure the sealing effect, the middle part of the sealing sleeve 15 is slidably connected with the right end of the threaded rod one 1, so as to ensure the stability and sealing between the two, the left end of the sealing sleeve 15 is also slidably connected with a protective ring 14, so as to further enhance the protection effect, the middle part of the protective ring 14 is slidably connected with the right side of the threaded rod one 1, the left end of the threaded rod one 1 is fixedly connected with the protective column 9, the top of the rubber protective sleeve 18 is fixedly connected with the sign 5, the middle part of the protective ring 14 is slidably connected with the right side of the threaded rod one 1, so as to ensure that the protective ring 14 can follow the movement of the threaded rod one 1, the left end of the threaded rod one 1 is fixedly connected with a protective column 9, so as to provide additional protection, in order to further improve the identification and protection effect, the top of the rubber protective sleeve 18 is fixedly connected with a sign 5, so as to facilitate identification;

[0046] Specifically, the left end of the small pipe port two 204 is slidably connected with the sealing sleeve 15, so as to ensure the sealing effect, the middle part of the sealing sleeve 15 is slidably connected with the right end of the threaded rod one 1, so as to ensure the stability and sealing between the two, the left end of the sealing sleeve 15 is also slidably connected with a protective ring 14, so as to further enhance the protection effect, the middle part of the protective ring 14 is slidably connected with the right side of the threaded rod one 1, so as to ensure that the protective ring 14 can follow the movement of the threaded rod one 1, in order to provide additional protection, the left end of the threaded rod one 1 is fixedly connected with a protective column 9.

[0047] Please refer to the accompanying Figure 1 , the accompanying Figure 3 and the accompanying Figure 5 , the right side of the protective sleeve one 16 is slidably connected with the protective ring 13, the middle part of the protective ring 13 is slidably connected with the left side of the threaded rod two 3, the outer walls of the upper and lower ends of the handle 7 are fixedly connected with the anti-skid sleeves 8, the right side of the protective sleeve one 16 is slidably connected with the protective ring 13, the middle part of the protective ring 13 is slidably connected with the left side of the threaded rod two 3, the outer walls of the upper and lower ends of the handle 7 are fixedly connected with the anti-skid sleeves 8, so as to increase the friction and stability when holding, the right side of the short column 6 is fixedly connected with the sealing ring 12, the left side of the short column 6 is fixedly connected with the protective sleeve two 17, the right side of the lubricating oil dripping ring 202 is slidably connected with the protective sleeve one 16, the middle part of the protective sleeve one 16 is slidably connected with the left end of the threaded rod two 3, the right side of the short column 6 is fixedly connected with a sealing ring 12, so as to ensure the sealing performance of the equipment, the left side of the short column 6 is fixedly connected with the protective sleeve two 17, so as to protect the internal structure of the equipment, the right side of the lubricating oil dripping ring 202 is also slidably connected with the protective sleeve one 16, so as to ensure the stability of the structure, the middle part of the protective sleeve one 16 is slidably connected with the left end of the threaded rod two 3, so as to ensure the integrity of the structure;

[0048] Specifically, the protective sleeve 16 is slidably connected to the right side of the protective ring 13, and the middle part of the protective ring 13 is slidably connected to the left side of the threaded rod 3, which ensures the protection effect, and the outer wall parts at the upper and lower ends of the handle 7 are fixedly connected with the anti-skid sleeve 8, which can increase the friction and stability when holding, thereby improving the overall use experience, and the sealing ring 12 is fixedly connected to the right side of the short column 6, which mainly ensures the sealing performance of the device to prevent liquid or gas leakage, and the protective sleeve 2 is fixedly connected to the left side of the short column 6, which is used to protect the internal structure of the device and avoid external impact during use.

[0049] Working principle: when in use, the long rod 4 fixedly connected with the threaded rod 2 is put into the wall, and then fixed through the nut 11, the front end of the nut 11 is then threadedly connected with the threaded rod 1, and then the short column 6 is threadedly connected with the threaded groove 19 in the inner side of the rubber protective sleeve 18 to complete the fixation, and finally the handle 7 is pushed into the rotating ring 10 to make the rotating ring 10 move on the threaded rod 1 to complete the fixation of the rubber protective sleeve 18, so that the conveniently disassembled stud can make the formwork disassembly work more efficient, and the formwork can be smoothly disassembled without damaging the concrete surface, thereby maintaining the integrity of the concrete structure, the disassembled part can be reused, the construction is fast and convenient, and the concrete is not easy to be damaged and polluted.

[0050] When threadedly connected, the lubricating oil stored in the small pipe opening 1 203 on the right side of the nut 11 can penetrate out of the lubricating oil droplet ring 202 and then be absorbed by the sponge 206, and the mold release agent stored in the small pipe opening 2 204 on the left side of the nut 11 can be discharged from the mold release agent discharge ring 205 and then be absorbed by the absorbing sheet 201, and finally act on the left side of the nut 11, the lubricating oil can reduce the friction and wear between the screw rod and the formwork, improve the quality of the concrete surface, the mold release agent can reduce the bonding force between the concrete and the stud and the formwork, improve the reusability of the formwork, and make the concrete surface around the bolt hole smoother and more flat, which helps to improve the appearance quality of the concrete.

[0051] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement for some technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A tie bolt that is easy to disassemble, comprising a threaded rod (1), characterized in that: The left side of the threaded rod (1) is threaded with a short column (6), the left side of the threaded rod (1) is threaded with a rotating ring (10), the upper and lower ends of the rotating ring (10) are fixedly connected with handles (7), the right side of the threaded rod (1) is threaded with a nut (11), the outer side of the nut (11) is slidably connected with a rubber protective sleeve (18), the left inner wall of the rubber protective sleeve (18) is provided with a threaded groove (19), the inner side of the nut (11) is threaded with a threaded rod (3), the right end of the threaded rod (3) is fixedly connected with a long rod (4), the right side of the threaded rod (1) is provided with a protective mechanism (2), the protective mechanism (2) is used to protect the tie bolts and the template.

2. The easily disassembled tie bolt according to claim 1, characterized in that: The protective mechanism (2) includes an absorbent sheet (201), the right side of which is slidably connected to the left side of the nut (11), a release agent discharge ring (205) is slidably connected to the left side of the absorbent sheet (201), the top end of the release agent discharge ring (205) is connected to a small tube opening two (204), a sponge (206) is fixedly connected to the right side of the nut (11), a lubricating oil drip ring (202) is slidably connected to the sponge (206), and the top end of the lubricating oil drip ring (202) is connected to a small tube opening one (203).

3. The easily disassembled tie bolt according to claim 1, characterized in that: A protective post (9) is fixedly connected to the left end of the threaded rod (1), and a nameplate (5) is fixedly connected to the top of the rubber protective sleeve (18).

4. A conveniently disassembled tie bolt according to claim 2, characterized in that: The upper and lower outer walls of the handle (7) are fixedly connected with anti-slip sleeves (8), the right side of the short column (6) is fixedly connected with a sealing ring (12), and the left side of the short column (6) is fixedly connected with a protective sleeve (17).

5. A conveniently disassembled tie bolt according to claim 2, characterized in that: The left end of the second small tube (204) is slidably connected to a sealing sleeve (15), and the middle part of the sealing sleeve (15) is slidably connected to the right end of the threaded rod (1).

6. A conveniently disassembled tie bolt according to claim 5, characterized in that: The left end of the sealing sleeve (15) is slidably connected to a protective ring (14), and the middle part of the protective ring (14) is slidably connected to the right side of the threaded rod (1).

7. A conveniently disassembled tie bolt according to claim 2, characterized in that: The right side of the lubricating oil drip ring (202) is slidably connected to a protective sleeve (16), and the middle part of the protective sleeve (16) is slidably connected to the left end of the threaded rod (3).

8. A conveniently disassembled tie bolt according to claim 7, characterized in that: The protective sleeve (16) is slidably connected to the right side of a protective ring (13), and the middle part of the protective ring (13) is slidably connected to the left side of the threaded rod (3).