Anchor rod protection device and system
By designing anchor protection devices and using anchoring, buffering and adjustment components, the problem that the prior art cannot reduce the harm of anchor dean and anchor breaking accidents is solved, and safety guarantees are achieved for operators when an accident occurs.
Patent Information
- Application Number
- CN202420118168.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-17
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-01-17
AI Technical Summary
Although existing anchor dean and anchor breaking accidents reduce the incidence rate by enhancing support density and tensile strength, they cannot effectively reduce the degree of harm of the accident, resulting in serious dangers when it occurs.
An anchor protection device is designed, including an anchor assembly, a buffer assembly and an adjustment assembly, which is inserted into the tunnel wall through one end of the anchor and the other end is exposed outside the tunnel wall. The buffer assembly and an adjustment assembly are used to prevent the anchor from being dean. Or directly contact or fly out when the anchor is broken, reducing the damage to the operator.
It effectively reduces the risk of anchoring and breaking anchors, ensures the safety of operators, reduces impact strength through buffering components and adjusts components to control the speed of anchoring rods to minimize personnel injury.
Smart Images
Figure CN222228585U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of anchor rod de-anchoring protection, in particular to an anchor rod protection device. Background Art
[0002] In recent years, the depth of coal mining has gradually increased, and the phenomenon of anchor unanchoring and anchor breaking has attracted more and more attention from countries around the world. In order to effectively reduce the damage to personnel caused by anchor unanchoring and anchor breaking, the commonly used treatment methods currently include increasing the density of anchor support, increasing the tensile strength of anchors, and strengthening the installation quality of anchors. Increasing the density of anchor support is a preventive method to disperse stress. This method can disperse the stress among different anchors, but the asynchrony of bearing capacity causes uneven stress on different anchors. Some anchors are still under greater stress, and unanchoring and anchor breaking accidents will still occur. Increasing the tensile strength of anchors is a method to improve the bearing capacity of anchors. Although this method can prevent anchor unanchoring and anchor breaking within a certain stress range, as the stress continues to increase, once the anchor unanchors and anchor breaks, the degree of harm will become more serious.
[0003] It can be seen that the existing measures are mainly based on prevention, thereby reducing the incidence of anchor breakage and anchor detachment accidents, but cannot reduce the severity of the hazards of anchor detachment and anchor breakage accidents.
[0004] Therefore, how to provide an anchor rod protection device to reduce the degree of harm caused by anchor rod unanchoring and anchor breaking accidents is a technical problem that needs to be solved urgently by technical personnel in this field. Utility Model Content
[0005] The utility model aims to provide an anchor rod protection device to reduce the degree of harm caused by anchor rod unanchoring and anchor breaking accidents and ensure the safety of operators when unanchoring and anchor breaking occur.
[0006] To achieve the above-mentioned purpose, the first aspect of the utility model provides an anchor rod protection device, which includes: an anchor assembly, including an anchor rod, one end of the anchor rod is inserted into the wall of the tunnel, and the other end of the anchor rod is exposed outside the wall; a buffer assembly, which is sleeved on the other end of the anchor rod; an adjustment assembly, one end of the adjustment assembly is fixedly connected to the buffer assembly, and the other end of the adjustment assembly is fixedly connected to the wall of the tunnel.
[0007] In the first aspect, the anchoring assembly also includes: an anchor plate, which passes through the anchor and contacts the tunnel wall; an anchor nut, which passes through the anchor and contacts the anchor plate to press the anchor plate against the tunnel wall, and the contact portion between the anchor and the anchor nut is provided with a thread, and the anchor nut is threadedly connected to the anchor.
[0008] In the first aspect, the buffer assembly includes: a first spiral lock, which is sleeved on the outside of the other end of the anchor rod, and the first spiral lock is fixedly connected to the other end of the anchor rod; a rubber cap, which is flexible and sleeved on the end of the other end of the anchor rod, the open end of the rubber cap is fixedly connected to the first spiral lock, and the closed end of the rubber cap envelopes the end of the other end of the anchor rod.
[0009] In the first aspect, the buffer assembly also includes: a second spiral lock, which is sleeved on the outside of the other end of the anchor rod, the second spiral lock and the first spiral lock are spaced apart on the other end of the anchor rod, and a stretching area is formed between the second spiral lock and the first spiral lock; an annular sleeve, which is sleeved on the other end of the anchor rod and placed in the stretching area, one end of the annular sleeve is fixedly connected to the first spiral lock, and the other end of the annular sleeve is fixedly connected to the second spiral lock.
[0010] In the first aspect, the adjustment assembly includes: a pull ring fixedly connected to the middle portion of the annular sleeve; a steel wire, one end of which is fixedly connected to the pull ring and the other end of which is fixed to the wall of the tunnel.
[0011] In the first aspect, the pull ring member includes a first pull ring and a second pull ring, the first pull ring and the second pull ring are symmetrically arranged in the middle of the annular sleeve, and the first pull ring and the second pull ring are respectively fixedly connected to the middle of the annular sleeve; the steel wire member includes a first steel wire and a second steel wire, the first steel wire and the second steel wire are symmetrically arranged on both sides of the anchor rod, one end of the first steel wire is fixedly connected to the first pull ring, and the other end of the first steel wire is fixed to the lane wall on one side of the anchor rod, one end of the second steel wire is fixedly connected to the second pull ring, and the other end of the second steel wire is fixed to the lane wall on the other side of the anchor rod.
[0012] In the first aspect, the first spiral lock includes a first rotating handle and a first spiral locking track, and the first rotating handle passes through the first spiral locking track to fix the first spiral lock, the annular sleeve and the rubber cap to the outside of the other end of the anchor rod; the second spiral lock includes a second rotating handle and a second spiral locking track, and the second rotating handle passes through the second spiral locking track to fix the second spiral lock and the annular sleeve to the outside of the other end of the anchor rod.
[0013] In the first aspect, the rubber cap is made of elastic and corrosion-resistant material.
[0014] In the first aspect, the first steel wire is distributed at an acute angle A with the tunnel wall, the second steel wire is distributed at an acute angle B with the tunnel wall, and the acute angle A is equal to the acute angle B; the first steel wire and the second steel wire are made of galvanized material.
[0015] The second aspect of the utility model provides an anchor rod protection system, comprising: an anchor rod protection device as described in any one of the above items, wherein a plurality of the anchor rod protection devices are arranged at intervals along the wall of the tunnel.
[0016] The utility model has the following beneficial effects:
[0017] The utility model provides an anchor rod protection device, including an anchoring assembly, a buffer assembly and an adjustment assembly. By inserting one end of the anchor rod into the tunnel wall and exposing the other end outside the tunnel wall, the anchor rod can be fixed in the tunnel wall to provide support for the tunnel; at the same time, the buffer assembly is sleeved on the other end of the anchor rod and fixedly connected to the other end of the anchor rod, so as to prevent the anchor rod from directly contacting the operator in the case of unanchoring or anchor breaking through the buffer assembly to cause harm to the operator; in addition, one end of the adjustment assembly is fixedly connected to the buffer assembly, and the other end of the adjustment assembly is fixedly connected to the tunnel wall of the tunnel, so that the anchor rod and the tunnel wall are connected twice through the adjustment assembly, so as to prevent the anchor rod from directly flying out in the case of unanchoring or anchor breaking to cause harm to the operator. Based on this, the anchor rod protection device provided by the utility model can reduce the degree of danger when the anchor rod is unanchored or anchored, so as to ensure the safety of personnel when the anchor rod is unanchored or anchored. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 This is a schematic structural diagram of a protective device for reducing the hazards of anchor rod unanchoring and anchor breaking according to the utility model;
[0020] Figure 2 It is a structural schematic diagram of the first spiral lock in the utility model;
[0021] Figure 3 It is a schematic diagram of the cross-section layout along the direction of tunnel excavation.
[0022] Description of reference numerals:
[0023] 1. Anchor assembly; 11. Anchor rod; 12. Anchor rod pad; 13. Anchor rod nut;
[0024] 2. Buffer assembly; 21. First spiral lock; 22. Annular sleeve; 23. Second spiral lock; 24. Rubber cap; 211. First rotating handle; 212. First spiral lock track; 231. Second rotating handle; 232. Second spiral lock track;
[0025] 3. Adjustment assembly; 31. First pull ring; 32. Second pull ring; 33. First steel wire; 34. Second steel wire. DETAILED DESCRIPTION
[0026] The following will be combined with the accompanying drawings to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this utility model.
[0027] In the embodiments of this specification, when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time.
[0028] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0029] Embodiment 1:
[0030] See also Figure 1-Figure 3 Embodiment 1 of the utility model provides an anchor rod protection device, which includes: an anchor assembly 1, including an anchor rod 11, one end of the anchor rod 11 is inserted into the wall of the tunnel, and the other end of the anchor rod 11 is exposed outside the tunnel wall; a buffer assembly 2, which is sleeved on the other end of the anchor rod 11; an adjustment assembly 3, one end of the adjustment assembly 3 is fixedly connected to the buffer assembly 2, and the other end of the adjustment assembly 3 is fixedly connected to the wall of the tunnel.
[0031] Specifically, the utility model provides an anchor rod protection device, including an anchoring assembly, a buffer assembly and an adjustment assembly. By inserting one end of the anchor rod into the tunnel wall and exposing the other end outside the tunnel wall, the anchor rod can be fixed in the tunnel wall to provide support for the tunnel; at the same time, the buffer assembly is sleeved on the other end of the anchor rod and fixedly connected to the other end of the anchor rod, so as to prevent the anchor rod from directly contacting the operator in the case of unanchoring or anchor breaking through the buffer assembly to cause harm to the operator; in addition, one end of the adjustment assembly is fixedly connected to the buffer assembly, and the other end of the adjustment assembly is fixedly connected to the tunnel wall of the tunnel, so that the anchor rod and the tunnel wall are connected twice through the adjustment assembly to prevent the anchor rod from directly flying out in the case of unanchoring or anchor breaking to cause harm to the operator. Based on this, the anchor rod protection device provided by the utility model can reduce the degree of danger when the anchor rod is unanchored or anchored, so as to ensure the safety of personnel when the anchor rod is unanchored or anchored.
[0032] In some possible embodiments, the anchoring assembly 1 further includes: an anchor plate 12, which passes through the anchor rod 11 and contacts the tunnel wall; an anchor nut 13, which passes through the anchor rod 11 and contacts the anchor plate 12 to press the anchor plate 12 against the tunnel wall, and a thread is provided at a contact portion between the anchor rod 11 and the anchor nut 13, and the anchor nut 13 is threadedly connected to the anchor rod 11.
[0033] Those skilled in the art will appreciate that the anchor pad 12 passes through the anchor 11 and contacts the tunnel wall, and the anchor nut 13 passes through the anchor 11 and contacts the anchor pad 12 to press the anchor pad 12 against the tunnel wall, which can further fix the anchor so that the anchor is sufficient to support the tunnel.
[0034] In some possible embodiments, the buffer assembly 2 includes: a first spiral lock 21, which is sleeved on the outside of the other end of the anchor rod 11, and the first spiral lock 21 is fixedly connected to the other end of the anchor rod 11; a rubber cap 24, which is flexible and sleeved on the end of the other end of the anchor rod 11, the open end of the rubber cap 24 is fixedly connected to the first spiral lock 21, and the closed end of the rubber cap 24 envelopes the end of the other end of the anchor rod 11.
[0035] This is because the rubber cap 24 is flexible and is sleeved on the end of the other end of the anchor rod 11. It can change the hard contact with the person into soft contact when the anchor rod is unanchored or broken, and at the same time increase the contact area, thereby reducing the impact strength on the human body when the anchor rod is unanchored or broken. At the same time, the rubber cap 24 is fixed to the outside of the other end of the anchor rod by the first spiral lock 21, which can further reduce the impact strength of the anchor rod flying out when it is unanchored or broken.
[0036] In some possible embodiments, the buffer assembly 2 also includes: a second spiral lock 23, which is sleeved on the outside of the other end of the anchor rod 11, and the second spiral lock 23 and the first spiral lock 21 are spaced apart on the other end of the anchor rod 11, and a stretching area is formed between the second spiral lock 23 and the first spiral lock 21; an annular sleeve 22, which is sleeved on the other end of the anchor rod 11 and placed in the stretching area, one end of the annular sleeve 22 is fixedly connected to the first spiral lock 21, and the other end of the annular sleeve 22 is fixedly connected to the second spiral lock 23.
[0037] Those skilled in the art can understand that the buffer assembly 2 also includes a second spiral lock 23 and an annular sleeve 22, the first spiral lock 21 and the second spiral lock 23 are spaced apart on the other end of the anchor rod 11, and a stretching area is formed between the second spiral lock and the first spiral lock, the annular sleeve 22 is placed in the stretching area, one end of the annular sleeve 22 is fixedly connected to the first spiral lock 21, and the other end of the annular sleeve 22 is fixedly connected to the second spiral lock 23, which can further fix the rubber cap 24 and reduce the degree of harm to the human body caused by the anchor rod being unanchored and broken.
[0038] In some possible implementations, the adjustment assembly includes: a pull ring fixedly connected to the middle portion of the annular sleeve 22; a steel wire, one end of which is fixedly connected to the pull ring, and the other end of the steel wire is fixed to the wall of the tunnel.
[0039] This is because the pull ring is fixed in the middle of the annular sleeve 22, one end of the steel wire is fixedly connected to the pull ring, and the other end of the steel wire is fixedly connected to the tunnel wall. The adjustment assembly composed of the pull ring and the steel wire can adjust the fixed position with the tunnel wall according to actual conditions, thereby reducing the speed at which the anchor rod flies out when the anchor is unanchored or broken.
[0040] In some possible embodiments, the pull ring member includes a first pull ring 31 and a second pull ring 32, and the first pull ring 31 and the second pull ring 32 are correspondingly arranged in the middle part of the annular sleeve 22, and the first pull ring 31 and the second pull ring 32 are fixedly connected to the middle part of the annular sleeve 22; the steel wire member includes a first steel wire 33 and a second steel wire 34, and the first steel wire 33 and the second steel wire 34 are correspondingly arranged on both sides of the anchor rod 11, one end of the first steel wire 33 is fixedly connected to the first pull ring 31, and the other end of the first steel wire 33 is fixed to the lane wall on one side of the anchor rod 11, and one end of the second steel wire 34 is fixedly connected to the second pull ring 32, and the other end of the second steel wire 34 is fixed to the lane wall on the other side of the anchor rod 11.
[0041] In order to balance the forces exerted by the pull ring and the steel wire on the annular sleeve, in the first embodiment, the first pull ring 31 and the second pull ring 32 are correspondingly arranged in the radial direction of the middle part of the annular sleeve, and the first steel wire 33 and the second steel wire 34 are correspondingly arranged on both sides of the anchor rod 11. One end of the first steel wire 33 is fixedly connected to the first pull ring 31, and the other end of the first steel wire 33 is fixed to the lane wall on one side of the anchor rod 11. One end of the second steel wire 34 is fixedly connected to the second pull ring 32, and the other end of the second steel wire 34 is fixed to the lane wall on the other side of the anchor rod 11. This can make the anchor rod 11 generate reverse resistance when it flies out in the case of unanchoring or broken anchor, thereby minimizing the speed of the anchor rod after flying out.
[0042] In some possible embodiments, the first spiral lock 21 includes a first rotating handle 211 and a first spiral locking track 212, and the first rotating handle 211 passes through the first spiral locking track 212 to fix the first spiral lock 21, the annular sleeve 22 and the rubber cap 24 to the outside of the other end of the anchor rod 11; the second spiral lock 23 includes a second rotating handle 231 and a second spiral locking track 232, and the second rotating handle 231 passes through the second spiral locking track 232 to fix the second spiral lock 23 and the annular sleeve 24 to the outside of the other end of the anchor rod 11.
[0043] Those skilled in the art will appreciate that the first spiral lock 21 includes a first rotating handle 211 and a first spiral lock track 212, and the first rotating handle 211 passes through the first spiral lock track 212, and is used to fix the first spiral lock 21, the annular sleeve 22 and the soft rubber sleeve 24 to the outside of the other end of the anchor rod 11. Similarly, the second spiral lock 23 includes a second rotating handle 231 and a second spiral lock track 232, and the second rotating handle 231 passes through the second spiral lock track 232, and the second rotating handle 231 passes through the second spiral lock track 232, and is used to fix the second spiral lock 23 and the annular sleeve 22 to the outside of the other end of the anchor rod 11, and then by rotating the first rotating handle 211 to move the first rotating handle in the first spiral cableway 212, rotating the second rotating handle 231 to move the second rotating handle 231 in the second spiral cableway 232, so that the first spiral lock 21 and the second spiral lock 23 lock the anchor rod 11.
[0044] In some possible implementations, the rubber cap 24 is made of elastic and corrosion-resistant material.
[0045] This is because the elastic and corrosion-resistant rubber cap 24 can not only increase the contact area with the human body, but also prevent the rubber cap 24 from being corroded in the tunnel, thereby reducing the danger of the anchor being unanchored or broken.
[0046] In some possible implementations, the first steel wire 33 is distributed at an acute angle A with the wall of the tunnel, the second steel wire 34 is distributed at an acute angle B with the wall of the tunnel, and the acute angle A is equal to the acute angle B; the first steel wire 33 and the second steel wire 34 are made of galvanized material.
[0047] Those skilled in the art can understand that the first steel wire 33 is distributed at an acute angle A with the tunnel wall, and the second steel wire 34 is distributed at an acute angle B with the tunnel wall, and the acute angle A is equal to the acute angle B. Construction personnel can change the fixed positions of the first steel wire 33 and the second steel wire 34 with the tunnel wall according to actual conditions, and then adjust the angle between the steel wire and the anchor rod 11. At the same time, the galvanized material can make the first steel wire 33 and the second steel wire 34 corrosion-resistant and able to withstand greater tension, thereby generating greater reverse resistance to the anchor rod.
[0048] Furthermore, in actual application, the attenuation rate of the protective device provided by the first embodiment can be calculated by the following formula, so as to further use the first embodiment scientifically and accurately to achieve the purpose of effectively attenuating the force acting on the human body when the anchor rod is unanchored or broken. The specific attenuated stress P1 is:
[0049]
[0050] Where: P - stress when the anchor end contacts
[0051] F - Tensile stress inside the anchor
[0052] Q - Anchor tension resistance
[0053] F1 - Steel wire tensile strength
[0054] D - contact area of soft rubber head
[0055] d - contact area of anchor rod
[0056] - Angle between the steel wire and the anchor rod
[0057] In the above formula, F is related to geological factors, and other variables are controllable variables. When the internal stress F of the anchor is large and the tensile strength Q of the anchor itself is constant, the contact area D of the soft rubber head, the tensile strength F1 of the steel wire, or the angle between the steel wire and the anchor can be appropriately increased to increase the attenuation rate of the protection method and reduce the impact on personnel when the anchor flies out.
[0058] Based on the above principle, the attenuation rate of the protective device can be calculated. The smaller the attenuated stress P1 is, the greater the resistance of the protective method to anchor unanchoring and anchor breaking, and the better the effect. Therefore, based on the attenuated stress P1 and the maximum stress P0 that the human body can withstand, the required protective parameters such as the contact area D of the soft rubber head, the tensile force F1 of the steel wire, and the angle between the steel wire and the anchor can be reasonably inferred to ensure the safety of personnel when anchor unanchoring and anchor breaking occur.
[0059] Embodiment 2:
[0060] The second embodiment of the present invention provides an anchor rod protection system, comprising: the anchor rod protection device described in the first embodiment, wherein a plurality of the anchor rod protection devices are arranged at intervals along the wall of the tunnel.
[0061] Specifically, the protective device is inserted into the tunnel wall to a depth of 2m. The protective device is set 0.8m from the bottom of the tunnel and also at the highest point on the top of the tunnel. After determining the three basic protective devices, the rest are arranged at intervals according to the actual situation of the tunnel. This not only increases the support strength of the tunnel, but also ensures the safety of the workers when anchoring or breaking occurs.
[0062] Since the second embodiment and the first embodiment are embodiments of the same inventive concept and some of their structures are exactly the same, the structures in the second embodiment that are substantially the same as those in the first embodiment will not be elaborated in detail. For the parts not described in detail, please refer to the first embodiment.
[0063] Finally, it should be noted that the above embodiments are only specific implementation methods of the utility model, which are used to illustrate the technical solution of the utility model, rather than to limit it. The protection scope of the utility model is not limited thereto. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that any technician familiar with the technical field can still modify the technical solution recorded in the above embodiments within the technical scope disclosed by the utility model, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiment of the utility model. They should all be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.
[0064] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.
Claims
1. An anchor rod protection device, characterized in that: The protective device comprises: The anchor assembly comprises an anchor rod, one end of which is inserted into the tunnel wall, and the other end of which is exposed outside the tunnel wall; A buffer assembly, sleeved on the other end of the anchor rod; An adjusting component, one end of which is fixedly connected to the buffer component, and the other end of which is fixedly connected to the lane wall of the lane.
2. The anchor rod protection device according to claim 1, characterized in that: The anchor assembly further comprises: An anchor pad, passing through the anchor and contacting the tunnel wall; An anchor nut passes through the anchor and contacts the anchor pad to press the anchor pad against the tunnel wall. A thread is provided at the contact portion between the anchor and the anchor nut, and the anchor nut is threadedly connected to the anchor.
3. The anchor rod protection device according to claim 2, characterized in that: The buffer assembly comprises: A first spiral lock, which is sleeved on the outside of the other end of the anchor rod, and the first spiral lock is fixedly connected to the other end of the anchor rod; A rubber cap is flexible and is sleeved on the other end of the anchor rod. The open end of the rubber cap is fixedly connected to the first spiral lock, and the closed end of the rubber cap envelops the other end of the anchor rod.
4. The anchor rod protection device according to claim 3, characterized in that: The buffer assembly also includes: A second spiral lock is sleeved on the outside of the other end of the anchor rod, the second spiral lock and the first spiral lock are spaced apart on the other end of the anchor rod, and a stretching area is formed between the second spiral lock and the first spiral lock; An annular sleeve is sleeved on the other end of the anchor rod and placed in the stretching area. One end of the annular sleeve is fixedly connected to the first spiral lock, and the other end of the annular sleeve is fixedly connected to the second spiral lock.
5. The anchor rod protection device according to claim 4, characterized in that: The adjustment component comprises: A pull ring, fixedly connected to the middle portion of the annular sleeve; A steel wire piece, one end of which is fixedly connected to the pull ring piece, and the other end of which is fixed to the wall of the lane.
6. The anchor rod protection device according to claim 5, characterized in that: The pull ring member includes a first pull ring and a second pull ring, the first pull ring and the second pull ring are symmetrically arranged in the middle of the annular sleeve, and the first pull ring and the second pull ring are respectively fixedly connected to the middle of the annular sleeve; The steel wire member includes a first steel wire and a second steel wire, the first steel wire and the second steel wire are symmetrically arranged on both sides of the anchor rod, one end of the first steel wire is fixedly connected to the first pull ring, and the other end of the first steel wire is fixed to the lane wall on one side of the anchor rod, one end of the second steel wire is fixedly connected to the second pull ring, and the other end of the second steel wire is fixed to the lane wall on the other side of the anchor rod.
7. The anchor rod protection device according to claim 6, characterized in that: The first spiral lock comprises a first rotating handle and a first spiral locking track, wherein the first rotating handle passes through the first spiral locking track and is used to fix the first spiral lock, the annular sleeve and the rubber cap to the outside of the other end of the anchor rod; The second spiral lock comprises a second rotating handle and a second spiral locking track, wherein the second rotating handle passes through the second spiral locking track and is used to fix the second spiral lock and the annular sleeve outside the other end of the anchor rod.
8. The anchor rod protection device according to claim 7, characterized in that: The rubber cap is made of elastic and corrosion-resistant material.
9. The anchor rod protection device according to claim 8, characterized in that: The first steel wire is distributed at an acute angle A with the wall of the tunnel, and the second steel wire is distributed at an acute angle B with the wall of the tunnel, and the acute angle A is equal to the acute angle B; The first steel wire and the second steel wire are made of galvanized material.
10. An anchor protection system, characterized in that: include: Several anchor rod protection devices as described in any one of claims 1-9, several of the anchor rod protection devices are arranged at intervals along the wall of the tunnel.