Anchor rod shank sleeve easy to disassemble

Abstract

The utility model discloses an anchor rod bit shank sleeve easy to disassemble, which comprises a sleeve body, a first inner connecting threaded hole section is arranged inside one end of the sleeve body, a second inner connecting threaded hole section is arranged inside the other end of the sleeve body, the first inner connecting threaded hole section and the second inner connecting threaded hole section have the same screwing direction, and the first inner connecting threaded hole section is used for connecting an anchor rod. The second inner connecting threaded hole section is used for connecting the output end of the rock drill; a through groove is formed in the inner wall of the first inner connecting threaded hole section and cuts off part of or all the axial section of the first inner connecting threaded hole section. According to the anchor rod bit shank sleeve easy to disassemble, the through groove is formed in the inner wall of the first inner connection threaded hole section, and the through groove cuts off part of or all the axial section of the first inner connection threaded hole section, so that the first inner connection threaded hole section is not continuous any more, the locking force of the first inner connection threaded hole section is reduced, and the service life of the anchor rod bit shank sleeve is prolonged. Therefore, when the anchor rod is disassembled, the anchor rod can be separated from the bit shank sleeve more easily, and a new anchor rod can be assembled.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering equipment technology, specifically to an easily detachable anchor bolt tail sleeve. Background Technology

[0002] Currently, anchoring construction requires the use of anchor drilling devices, which consist of anchor bolts, a drilling rig, and a connecting sleeve. Construction is carried out by drilling one anchor bolt at a time. After each anchor bolt is drilled, the connection between the anchor bolt and the drilling rig needs to be disconnected to install and drill the next anchor bolt, until the predetermined depth is reached. During construction, the drilling rig and the anchor bolt are fixedly connected by a drill bit sleeve. When it is necessary to remove the anchor bolt and install the next one, a hydraulic clamp is used to hold the anchor bolt in place, and the drill bit is rotated in the opposite direction to disengage it from the anchor bolt, thus achieving disassembly.

[0003] However, because the drill bit's shank diameter is smaller than the anchor rod's diameter, and the anchor rod's hardness is much lower than the drill bit's shank, the anchor rod easily adheres to the shank sleeve, increasing the thread load-bearing capacity. This causes the anchor rod and shank sleeve to tighten more and more as the drill rig drives the anchor rod into the hole. Thus, during actual disassembly, the shank sleeve often detaches from the drill bit's shank. Since the connection between the shank sleeve and the anchor rod is very tight, manual disassembly requires a significant amount of time. Combined with the frequent disassembly of the anchor rod during anchoring construction, this results in a substantial time commitment for disassembly.

[0004] In view of the above, this utility model patent is hereby proposed. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an easily detachable anchor bolt tail sleeve, which can solve the problem that the anchor bolt cannot be detached from the tail sleeve during anchor bolt disassembly. Specifically, the following technical solution is adopted:

[0006] A detachable anchor rod tail sleeve includes a sleeve body, one end of which has a first internal connecting threaded hole section, and the other end of which has a second internal connecting threaded hole section. The first and second internal connecting threaded hole sections have the same rotation direction. The first internal connecting threaded hole section is used to connect the anchor rod, and the second internal connecting threaded hole section is used to connect the output end of the rock drill.

[0007] A through groove is formed on the inner wall of the first internal connecting threaded hole section, and the through groove cuts off part or all of the axial section of the first internal connecting threaded hole section.

[0008] As an optional embodiment of this utility model, an easily detachable anchor rod tail sleeve of this utility model includes a through groove formed in the inner wall of the first inner connecting threaded hole section, wherein the first through groove cuts off the entire axial section of the first inner connecting threaded hole section.

[0009] As an optional embodiment of this utility model, in an easily detachable anchor rod tail sleeve, the first through groove is opened along the axial direction of the first internal connecting threaded hole section.

[0010] As an optional embodiment of this utility model, an easily detachable anchor bolt tail sleeve of this utility model includes a second through groove formed in the inner wall of the first inner connecting threaded hole section, wherein the second through groove cuts off a portion of the axial section of the first inner connecting threaded hole section.

[0011] As an optional embodiment of this utility model, in an easily detachable anchor bolt tail sleeve of this utility model, multiple second through grooves are opened circumferentially on the inner wall of the first inner connecting threaded hole section. The multiple second through grooves are opened in different axial sections of the inner wall of the first inner connecting threaded hole section, and the axial projection of the multiple second through grooves covers at least the entire axial section of the first inner connecting threaded hole section.

[0012] As an optional embodiment of this utility model, an easily detachable anchor bolt tail sleeve of this utility model is provided, wherein the through groove includes an alternately connected first arc-shaped sub-groove segment and a second arc-shaped sub-groove segment, and the maximum groove width of the first arc-shaped sub-groove segment is greater than the maximum groove width of the second arc-shaped sub-groove segment.

[0013] As an optional embodiment of this utility model, in an easily detachable anchor rod tail sleeve of this utility model, the minimum groove width of the through groove is greater than the internal thread spacing of the first internal connecting threaded hole section.

[0014] As an optional embodiment of this utility model, in an easily detachable anchor bolt tail sleeve, the inner diameter of the first inner connecting threaded hole section is larger than the inner diameter of the second inner connecting threaded hole section.

[0015] As an optional embodiment of this utility model, in an easily detachable anchor bolt tail sleeve of this utility model, the axial length of the first inner connecting threaded hole section is less than or equal to the axial length of the second inner connecting threaded hole section.

[0016] As an optional embodiment of this utility model, in an easily detachable anchor rod tail sleeve, the first inner connecting threaded hole section and the second inner connecting threaded hole section are connected through a connecting through hole section.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model provides an easily detachable anchor bolt tail sleeve. By opening a through groove in the inner wall of the first inner connecting threaded hole section, the through groove cuts off part or all of the axial section of the first inner connecting threaded hole section. This makes the first inner connecting threaded hole section discontinuous, reduces the locking force of the first inner connecting threaded hole section, and makes it easier to detach the anchor bolt from the tail sleeve when disassembling the anchor bolt, so as to install a new anchor bolt.

[0019] Therefore, the easily detachable anchor bolt tail sleeve of this utility model makes it easier to disassemble the anchor bolt when used for connection between the rock drill and the anchor bolt, saving time and greatly improving the efficiency of anchoring construction. Attached image description:

[0020] Figure 1 A three-dimensional structural diagram of an easily detachable anchor bolt tail sleeve according to an embodiment of this utility model;

[0021] Figure 2 A cross-sectional view of an easily detachable anchor bolt tail sleeve according to an embodiment of this utility model (one implementation);

[0022] Figure 3 A cross-sectional view of an easily detachable anchor bolt tail sleeve according to an embodiment of this utility model (another embodiment). Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0024] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0025] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] See Figures 1-3 As shown, an easily detachable anchor bolt tail sleeve of this embodiment includes a sleeve body 101. One end of the sleeve body 101 has a first internal connecting threaded hole section 102, and the other end of the sleeve body 101 has a second internal connecting threaded hole section 104. The first internal connecting threaded hole section 102 and the second internal connecting threaded hole section 104 have the same rotation direction. The first internal connecting threaded hole section 101 is used to connect the anchor bolt, and the second internal connecting threaded hole section 104 is used to connect the output end of the rock drill. A through groove 103 is formed in the inner wall of the first internal connecting threaded hole section 102, and the through groove 103 cuts off part or all of the axial section of the first internal connecting threaded hole section 102.

[0029] This embodiment provides an easily detachable anchor bolt tail sleeve. By creating a through groove 103 in the inner wall of the first inner connecting threaded hole section 102, the through groove 103 cuts off part or all of the axial section of the first inner connecting threaded hole section 102. This makes the first inner connecting threaded hole section 102 discontinuous, reducing the locking force of the first inner connecting threaded hole section 102. This makes it easier to detach the anchor bolt from the tail sleeve and install a new anchor bolt when disassembling the anchor bolt.

[0030] Therefore, the easily detachable anchor bolt tail sleeve of this utility model makes it easier to disassemble the anchor bolt when used for connection between the rock drill and the anchor bolt, saving time and greatly improving the efficiency of anchoring construction.

[0031] See Figure 2 As shown, as an optional implementation of this embodiment, an easily detachable anchor bolt tail sleeve of this embodiment includes a first through groove 103A opened in the inner wall of the first inner connecting threaded hole section 102, and the first through groove 103A cuts off the entire axial section of the first inner connecting threaded hole section 102.

[0032] In this embodiment, the first through groove 103A cuts off the entire axial section of the first internal connecting threaded hole section 102, reducing the locking force of the first internal connecting threaded hole section 102 in the entire axial direction. This makes it easier to disengage the anchor rod from the drill bit sleeve and install a new anchor rod when disassembling the anchor rod.

[0033] Furthermore, in this embodiment, the first through groove 103A is formed along the axial direction of the first internal connecting threaded hole section 102. It should be understood by those skilled in the art that the first through groove 103A in this embodiment can also be formed obliquely on the inner wall of the first internal connecting threaded hole section 102, as long as it can cut off the entire axial section of the first internal connecting threaded hole section 102.

[0034] See Figure 3 As shown, as an optional implementation of this embodiment, an easily detachable anchor bolt tail sleeve of this embodiment includes a second through groove 103B formed in the inner wall of the first inner connecting threaded hole section 102, wherein the second through groove 103B cuts off a portion of the axial section of the first inner connecting threaded hole section 102.

[0035] In this embodiment, the second through groove 103B cuts off part of the axial section of the first internal connecting threaded hole section 102, reducing the axial locking force of part of the first internal connecting threaded hole section 102. This makes it easier to disengage the anchor rod from the drill bit sleeve and install a new anchor rod when disassembling the anchor rod.

[0036] Furthermore, in this embodiment, multiple second through grooves 103B are circumferentially formed on the inner wall of the first inner connecting threaded hole section 102. The multiple second through grooves 103B are formed in different axial sections of the inner wall of the first inner connecting threaded hole section 102, and the axial projection of the multiple second through grooves 103B covers at least the entire axial section of the first inner connecting threaded hole section 102.

[0037] In this embodiment, a single second through groove 103B cuts off a portion of the axial section of the first internal connecting threaded hole section 102. Multiple second through grooves 103B combined can cut off the entire axial section of the first internal connecting threaded hole section 102, thereby reducing the locking force of the first internal connecting threaded hole section 102 in the entire axial direction.

[0038] In addition, in this embodiment, multiple second through grooves 103B are opened circumferentially along the inner wall of the first inner connecting threaded hole section 102, thereby reducing the locking force of the first inner connecting threaded hole section 102 in the entire circumferential direction.

[0039] Specifically, in this embodiment, an easily detachable anchor bolt tail sleeve is provided. The through groove 103 includes alternating first arc-shaped sub-groove segments 103-1 and 103-2. The maximum width of the first arc-shaped sub-groove segment 103-1 is greater than the maximum width of the second arc-shaped sub-groove segment 103-2. In this embodiment, the through groove 103 is an arc-shaped through groove, and the width of the second arc-shaped sub-groove segment 103-2 is smaller. This ensures that the first internal connecting threaded hole segment 102 locks the anchor bolt when it is screwed in. The larger width of the first arc-shaped sub-groove segment 103-1 reduces the locking force of the first internal connecting threaded hole segment 102 on the anchor bolt when it is disassembled. Therefore, the structural design of the through groove 103 in this embodiment ensures that the first internal connecting threaded hole segment 102 locks the anchor bolt when it is screwed in, and also reduces the locking force of the first internal connecting threaded hole segment 102 on the anchor bolt when it is disassembled, facilitating anchor bolt disassembly.

[0040] Furthermore, in this embodiment, the minimum groove width of the through groove 103 is greater than the internal thread spacing of the first internal connecting threaded hole section 102, which can effectively reduce the locking force of the first internal connecting threaded hole section 102 on the anchor rod when disassembling the anchor rod.

[0041] As an optional implementation of this embodiment, an easily detachable anchor bolt tail sleeve is provided, wherein the inner diameter of the first inner connecting threaded hole section 102 is larger than the inner diameter of the second inner connecting threaded hole section 104. This allows the anchor bolt tail sleeve to be threadedly connected to the anchor bolt and the output end of the rock drill, respectively.

[0042] Furthermore, in this embodiment, the axial length of the first internal connecting threaded hole section 102 is less than or equal to the axial length of the second internal connecting threaded hole section 104. This ensures that the second internal connecting threaded hole section 104 provides a sufficiently large locking force to guarantee the output end of the rock drill is locked securely, preventing the output end of the rock drill from disengaging from the anchor rod before the anchor rod and the anchor rod tail sleeve during anchor rod disassembly.

[0043] As an optional implementation of this embodiment, an easily detachable anchor bolt tail sleeve is provided, wherein the first internal connecting threaded hole section 102 and the second internal connecting threaded hole section 104 are connected by a connecting through hole section 105. In this way, the first internal connecting threaded hole section 102 and the second internal connecting threaded hole section 104 form a through channel, allowing grout to be injected through the through channel during drilling. Combined with grouting holes opened on the outer wall of the anchor bolt, this enables simultaneous drilling and grouting during the anchor bolt drilling process, greatly improving the drilling efficiency.

[0044] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A detachable anchor bolt tail sleeve, characterized in that, The device includes a sleeve, one end of which has a first internal threaded hole section and the other end of which has a second internal threaded hole section. The first and second internal threaded hole sections have the same rotation direction. The first internal threaded hole section is used to connect to an anchor rod, and the second internal threaded hole section is used to connect to the output end of a rock drill. A through groove is formed on the inner wall of the first internal connecting threaded hole section, and the through groove cuts off part or all of the axial section of the first internal connecting threaded hole section.

2. The easily detachable anchor bolt tail sleeve according to claim 1, characterized in that, The through groove includes a first through groove formed on the inner wall of the first internal connecting threaded hole section, and the first through groove cuts off the entire axial section of the first internal connecting threaded hole section.

3. The easily detachable anchor bolt tail sleeve according to claim 2, characterized in that, The first through groove is opened along the axial direction of the first internal connecting threaded hole section.

4. A detachable anchor bolt tail sleeve according to any one of claims 1-3, characterized in that, The through groove includes a second through groove formed on the inner wall of the first internal connecting threaded hole section, and the second through groove cuts off a portion of the axial section of the first internal connecting threaded hole section.

5. The easily detachable anchor bolt tail sleeve according to claim 4, characterized in that, Multiple second through grooves are formed circumferentially on the inner wall of the first internal connecting threaded hole segment. These multiple second through grooves are formed in different axial sections of the inner wall of the first internal connecting threaded hole segment. The axial projection of the multiple second through grooves covers at least the entire axial section of the first internal connecting threaded hole segment.

6. The easily detachable anchor bolt tail sleeve according to claim 4, characterized in that, The through groove includes alternating first arc-shaped sub-groove segments and second arc-shaped sub-groove segments, wherein the maximum width of the first arc-shaped sub-groove segment is greater than the maximum width of the second arc-shaped sub-groove segment.

7. The easily detachable anchor bolt tail sleeve according to claim 4, characterized in that, The minimum width of the through groove is greater than the internal thread spacing of the first internal connecting threaded hole section.

8. The easily detachable anchor bolt tail sleeve according to claim 1, characterized in that, The inner diameter of the first internal connecting threaded hole section is larger than the inner diameter of the second internal connecting threaded hole section.

9. A detachable anchor bolt tail sleeve according to claim 1 or 8, characterized in that, The axial length of the first internal connecting threaded hole segment is less than or equal to the axial length of the second internal connecting threaded hole segment.

10. The easily detachable anchor bolt tail sleeve according to claim 1, characterized in that, The first internal connecting threaded hole section and the second internal connecting threaded hole section are connected through a connecting through hole section.

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