Expansion shell anchor head with anti-rotation structure

Abstract

The utility model relates to the technical field of tunnel rock mass support, in particular to an expansion shell anchor head with an anti-rotation structure, which is characterized in that an anchor head main body, a clamping clack component and an anti-rotation component are placed in an anchor rod hole, a hollow screw is rotated, and the anchor head main body stops under the matching of the anti-rotation component, so that the anchor rod hole is tightly jacked, and the convenience is improved; comprising an anchor head body, a threaded hole, T-shaped sliding grooves, a circular truncated cone part, a grouting hole and a threaded part, the threaded hole is formed in the top end of the anchor head body, a slope surface structure is arranged on the anchor head body, the T-shaped sliding grooves are formed in the left end and the right end of the anchor head body respectively, the grouting hole is formed in the bottom end of the anchor head body, and the circular truncated cone part is arranged at the bottom end of the anchor head body. A thread part is arranged on the outer side wall of the circular truncated cone part, one clamping petal assembly is arranged in each T-shaped sliding groove in a sliding mode, the clamping petal assemblies are matched with the anchor head body through slope structures, and the anti-rotation assembly is assembled with the circular truncated cone part through the thread part.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel rock support, in particular to an expansion shell anchor head with an anti-rotation structure. Background Art

[0002] In the process of construction under surrounding rock and other geological conditions, support construction is required to prevent the collapse of rock or soil. The expansion shell anchor head is a common mechanical point anchor tool, which can play a good role in temporary support. After its installation, grouting can achieve the effect of stable anchoring.

[0003] In the prior art, a patent document with a publication number of CN217870460U discloses an expanding shell anchor head with an anti-rotation structure, including an anchor head body and clips symmetrically arranged on both sides of the anchor head body, the clips and the anchor head body are matched through a slope structure, and a threaded hole for installing an anchor rod is arranged on the top of the anchor head body, and a plug-in structure is arranged at the bottom end of the anchor head body, and the plug-in structure is used to be inserted into the bottom of the anchor rod hole so that a circumferential limiting structure is formed between the anchor head body and the anchor rod hole, and the plug-in structure is integrally formed with the anchor head body.

[0004] During use, it was found that when assembling the buckle cap and the anchor head body with the above-mentioned device, the staff needed to be careful during assembly due to the spike structure on the buckle cap, and the spike structure could easily cause puncture injuries to the staff. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an expansion shell anchor head with an anti-rotation structure for improving safety and protection.

[0006] The utility model discloses an expansion shell anchor head with an anti-rotation structure, comprising an anchor head body, a threaded hole, a T-shaped slide groove, a truncated cone part, a grouting hole and a threaded part, wherein the threaded hole is arranged at the top of the anchor head body, a slope structure is arranged on the anchor head body, the left and right ends of the anchor head body are respectively arranged with a T-shaped slide groove, the bottom end of the anchor head body is arranged with a grouting hole, the bottom end of the anchor head body is arranged with a truncated cone part, the outer side wall of the truncated cone part is arranged with a threaded part, and also comprises a flap assembly and an anti-rotation assembly, wherein a group of flap assemblies are respectively slidably arranged in each group of T-shaped slide grooves, and the flap assembly is connected to the anchor head body through the truncated cone part. The over-slope structure cooperates with the anchor head body, and the anti-rotation component is assembled with the threaded part and the truncated cone part; when in use, the hollow screw is screwed into the threaded hole, and the anti-rotation component is assembled with the threaded part and the truncated cone part, and then the anchor head body, the clip flap component and the anti-rotation component are placed in the anchor hole, and the hollow screw is rotated. The anchor head body stops with the cooperation of the anti-rotation component, and the hollow screw pushes the clip flap component downward with the cooperation of two groups of T-shaped grooves. The two groups of clip flap components are mirrored away with the cooperation of the slope structure, thereby tightening the anchor hole and improving convenience.

[0007] Preferably, the anti-rotation assembly comprises an internal threaded cap, a strip opening, a lifting plate, a slider, a spike portion, a through hole, a spring and a positioning rod, the internal threaded cap is screwed together with the truncated cone portion through the threaded portion, the outer wall of the internal threaded cap is symmetrically provided with a group of strip openings, the outer wall of the lifting plate is symmetrically provided with a slider, the slider is slidably arranged in a group of strip openings, the bottom end of the internal threaded cap is provided with a through hole, the bottom end of the lifting plate is provided with a spike portion, the bottom end of the lifting plate is provided with a positioning rod, and a spring is sleeved on the positioning rod; when the internal threaded cap is not in use, the lifting plate causes the spike portion to be inside the internal threaded cap under the action of the spring elastic force to prevent the staff from being stabbed by the spike portion when taking the internal threaded cap, and when the internal threaded cap is in use, the internal threaded cap is screwed together with the truncated cone portion through the threaded portion, and the bottom end of the truncated cone portion pushes the top end of the lifting plate downward, so that the lifting plate drives the spike portion to move downward under the cooperation of the strip opening and the slider, and the spike portion extends to the bottom of the internal threaded cap through the corresponding through hole, thereby improving safety.

[0008] Preferably, the flap assembly includes a flap and a T-shaped slider, the flap is provided with a T-shaped slider, and the T-shaped slider is slidably connected to a group of T-shaped slots; the T-shaped slider is slidably connected to the T-shaped slots, and the flap cooperates with the anchor head body through a slope structure to improve convenience.

[0009] Preferably, it also includes grooves, and the outer side wall of the internal thread cap is provided with a plurality of groups of grooves; the staff rotates the internal thread cap through the plurality of groups of grooves, so that the internal thread cap is screwed together with the threaded part and the truncated cone part, thereby improving convenience.

[0010] Preferably, the top of the lifting plate is provided with a smooth and wear-resistant coating; when the bottom end of the truncated cone portion pushes the top of the lifting plate downward, the service life of the lifting plate is improved under the protection of the smooth and wear-resistant coating.

[0011] Preferably, the outer side wall of the anchor head body is provided with an anti-rust coating; the anti-rust coating protects the anchor head body and increases the service life of the anchor head body.

[0012] Preferably, the lifting plate and the spike portion are integrally formed.

[0013] Compared with the prior art, the utility model has the following beneficial effects: when in use, the hollow screw is screwed into the threaded hole, the anti-rotation assembly is assembled through the threaded part and the truncated cone part, and then the anchor head body, the clip flap assembly and the anti-rotation assembly are placed in the anchor hole, the hollow screw is rotated, and the anchor head body stops with the cooperation of the anti-rotation assembly, and the hollow screw pushes the clip flap assembly downward with the cooperation of two groups of T-shaped grooves, and the two groups of clip flap assemblies are mirrored away with the cooperation of the slope structure, thereby tightening the anchor hole and improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0016] Figure 3 It is an enlarged structural diagram of structures such as a card flap and a T-shaped slider;

[0017] Figure 4 It is an enlarged structural diagram of the lifting plate and the internal thread cap;

[0018] Figure 5 It is an enlarged structural diagram of structures such as a lifting plate and a spike portion.

[0019] Markings in the attached drawings: 1. Anchor head body; 2. Threaded hole; 3. T-shaped slide groove; 4. Cone portion; 5. Grouting hole; 6. Threaded portion; 7. Internal thread cap; 8. Strip opening; 9. Lifting plate; 10. Slider; 11. Spiked portion; 12. Through hole; 13. Spring; 14. Positioning rod; 15. Clamp; 16. T-shaped slider; 17. Groove. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0021] Example 1

[0022] like Figures 1 to 3 As shown, the utility model is an expansion shell anchor head with an anti-rotation structure, comprising an anchor head body 1, a threaded hole 2, a T-shaped slide groove 3, a truncated cone portion 4, a grouting hole 5 and a threaded portion 6. The top of the anchor head body 1 is provided with a threaded hole 2, and the anchor head body 1 is provided with a slope structure. The left and right ends of the anchor head body 1 are respectively provided with T-shaped slide grooves 3, and the bottom end of the anchor head body 1 is provided with a grouting hole 5. The bottom end of the anchor head body 1 is provided with a truncated cone portion 4, and the outer side wall of the truncated cone portion 4 is provided with a threaded portion 6. It also includes a flap assembly and an anti-rotation assembly. A group of flap assemblies are respectively slidably arranged in each group of T-shaped slide grooves 3. The flap assembly cooperates with the anchor head body 1 through the slope structure, and the anti-rotation assembly is assembled with the truncated cone portion 4 through the threaded portion 6.

[0023] like Figures 1 to 5As shown, the anti-rotation assembly includes an internal threaded cap 7, a strip opening 8, a lifting plate 9, a slider 10, a spike portion 11, a through hole 12, a spring 13 and a positioning rod 14. The internal threaded cap 7 is screwed with the truncated cone portion 4 through the threaded portion 6. A group of strip openings 8 are symmetrically arranged on the outer wall of the internal threaded cap 7. The slider 10 is symmetrically arranged on the outer wall of the lifting plate 9. The slider 10 is slidably arranged in the group of strip openings 8. The bottom end of the internal threaded cap 7 is provided with a through hole 12, the bottom end of the lifting plate 9 is provided with a spike portion 11, the bottom end of the lifting plate 9 is provided with a positioning rod 14, and the spring 13 is sleeved on the positioning rod 14.

[0024] In this embodiment, when the internal thread cap 7 is not in use, the lifting plate 9, under the action of the elastic force of the spring 13, makes the spike portion 11 inside the internal thread cap 7, so as to prevent the staff from being stabbed by the spike portion 11 when taking the internal thread cap 7. When the internal thread cap 7 is in use, the internal thread cap 7 is screwed with the truncated cone portion 4 through the threaded portion 6, and the bottom end of the truncated cone portion 4 pushes the top end of the lifting plate 9 downward, so that the lifting plate 9 drives the spike portion 11 downward under the cooperation of the strip opening 8 and the slider 10. Move, the spike portion 11 passes through the corresponding through hole 12 and extends to the bottom of the internal threaded cap 7, the hollow screw is screwed with the threaded hole 2, and then the anchor head body 1, the clip assembly and the anti-rotation assembly are put into the anchor hole, and the hollow screw is rotated. The anchor head body 1 does not rotate with the hollow screw under the cooperation of the spike portion 11, and the hollow screw pushes the clip assembly downward with the cooperation of the two groups of T-shaped grooves 3. The two groups of clip assemblies are mirrored away with the cooperation of the slope structure, thereby tightening the anchor hole.

[0025] Example 2

[0026] like Figures 1 to 3 As shown, the utility model is an expansion shell anchor head with an anti-rotation structure, comprising an anchor head body 1, a threaded hole 2, a T-shaped slide groove 3, a truncated cone portion 4, a grouting hole 5 and a threaded portion 6. The top of the anchor head body 1 is provided with a threaded hole 2, and the anchor head body 1 is provided with a slope structure. The left and right ends of the anchor head body 1 are respectively provided with T-shaped slide grooves 3, and the bottom end of the anchor head body 1 is provided with a grouting hole 5. The bottom end of the anchor head body 1 is provided with a truncated cone portion 4, and the outer side wall of the truncated cone portion 4 is provided with a threaded portion 6. It also includes a flap assembly and an anti-rotation assembly. A group of flap assemblies are respectively slidably arranged in each group of T-shaped slide grooves 3. The flap assembly cooperates with the anchor head body 1 through the slope structure, and the anti-rotation assembly is assembled with the truncated cone portion 4 through the threaded portion 6.

[0027] like Figures 1 to 5As shown, the anti-rotation assembly includes an internal threaded cap 7, a strip opening 8, a lifting plate 9, a slider 10, a spike portion 11, a through hole 12, a spring 13 and a positioning rod 14. The internal threaded cap 7 is screwed with the truncated cone portion 4 through the threaded portion 6. A group of strip openings 8 are symmetrically arranged on the outer wall of the internal threaded cap 7. The slider 10 is symmetrically arranged on the outer wall of the lifting plate 9. The slider 10 is slidably arranged in the group of strip openings 8. The bottom end of the internal threaded cap 7 is provided with a through hole 12. The bottom end of the lifting plate 9 is provided with a spike portion 11. The bottom end of the lifting plate 9 is provided with a positioning rod 14, and the spring 13 is sleeved on the positioning rod 14.

[0028] like Figure 3 As shown, the flap assembly includes a flap 15 and a T-shaped slider 16. The flap 15 is provided with a T-shaped slider 16, and the T-shaped slider 16 is slidably connected with a group of T-shaped slide grooves 3;

[0029] like Figure 4 As shown, it also includes grooves 17 , and the outer side wall of the internal thread cap 7 is provided with multiple groups of grooves 17 .

[0030] In this embodiment, when the internal thread cap 7 is not in use, the lifting plate 9, under the action of the elastic force of the spring 13, keeps the spike portion 11 inside the internal thread cap 7, so as to prevent the spike portion 11 from causing stabbing to the staff when the staff takes the internal thread cap 7. When the internal thread cap 7 is in use, the internal thread cap 7 is screwed with the truncated cone portion 4 through the threaded portion 6, and the bottom end of the truncated cone portion 4 pushes the top end of the lifting plate 9 downward, so that the lifting plate 9 drives the spike portion 11 to move downward under the cooperation of the strip opening 8 and the slider 10, and the spike portion 11 passes through the corresponding through hole 12 and extends to the bottom of the internal thread cap 7, and the T-shaped slider 1 6 is slidably connected with the T-shaped slide groove 3, the clamping flap 15 cooperates with the anchor head body 1 through the slope structure, and the hollow screw is screwed with the threaded hole 2. Then, the anchor head body 1, the clamping flap assembly and the anti-rotation assembly are put into the anchor hole, and the hollow screw is rotated. The anchor head body 1 does not rotate with the hollow screw under the cooperation of the spike portion 11. The hollow screw pushes down the two groups of T-shaped sliders 16 under the cooperation of the two groups of T-shaped slide grooves 3. The two groups of T-shaped sliders 16 respectively drive the two groups of clamping flaps 15 to move under the guidance of the T-shaped slide grooves 3. The two groups of clamping flaps 15 are mirrored away from each other under the cooperation of the slope structure, so as to tighten the anchor hole.

[0031] The anchor head body 1, the clamping flap 15 and the T-shaped slider 16 of the expansion shell anchor head with an anti-rotation structure of the utility model are purchased on the market. The technicians in this industry only need to install and operate them according to the accompanying instruction manual without the need for creative labor by the technicians in this field.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An expansion shell anchor head with an anti-rotation structure, comprising an anchor head body (1), a threaded hole (2), a T-shaped slide groove (3), a truncated cone (4), a grouting hole (5) and a threaded portion (6), wherein the top of the anchor head body (1) is provided with a threaded hole (2), the anchor head body (1) is provided with a slope structure, the left and right ends of the anchor head body (1) are respectively provided with T-shaped slide grooves (3), the bottom end of the anchor head body (1) is provided with a grouting hole (5), the bottom end of the anchor head body (1) is provided with a truncated cone (4), and the outer side wall of the truncated cone (4) is provided with a threaded portion (6), characterized in that: It also includes a flap assembly and an anti-rotation assembly, wherein a flap assembly is slidably disposed in each group of T-shaped slide grooves (3), the flap assembly cooperates with the anchor head body (1) through a slope structure, and the anti-rotation assembly is assembled with the truncated cone portion (4) through a threaded portion (6); The anti-rotation component comprises an internal threaded cap (7), a strip opening (8), a lifting plate (9), a slider (10), a spike portion (11), a through hole (12), a spring (13) and a positioning rod (14); the internal threaded cap (7) is screwed with the truncated cone portion (4) through a threaded portion (6); a group of strip openings (8) are symmetrically arranged on the outer wall of the internal threaded cap (7); a slider (10) is symmetrically arranged on the outer wall of the lifting plate (9); the slider (10) is slidably arranged in the group of strip openings (8); a through hole (12) is arranged at the bottom end of the internal threaded cap (7); a spike portion (11) is arranged at the bottom end of the lifting plate (9); a positioning rod (14) is arranged at the bottom end of the lifting plate (9); and a spring (13) is sleeved on the positioning rod (14).

2. The expansion shell anchor head with an anti-rotation structure as claimed in claim 1, characterized in that: The clamping flap assembly comprises a clamping flap (15) and a T-shaped slider (16). The clamping flap (15) is provided with the T-shaped slider (16), and the T-shaped slider (16) is slidably connected to a group of T-shaped slide grooves (3).

3. The expansion shell anchor head with an anti-rotation structure as claimed in claim 1, characterized in that: It also comprises grooves (17), and the outer side wall of the internal thread cap (7) is provided with multiple groups of grooves (17).

4. The expansion shell anchor head with an anti-rotation structure as claimed in claim 1, characterized in that: The top end of the lifting plate (9) is provided with a smooth wear-resistant coating.

5. The expansion shell anchor head with an anti-rotation structure as claimed in claim 1, characterized in that: The outer side wall of the anchor head body (1) is provided with an anti-rust coating.

6. The expansion shell anchor head with an anti-rotation structure as claimed in claim 1, characterized in that: The lifting plate (9) and the spike portion (11) are integrally formed.

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