Expansion hook for tunnel drilling construction

Abstract

The expansion hook comprises a threaded rod and a hook body fixedly connected to one end of the threaded rod, the threaded rod is sleeved with an expansion pipe and a supporting pipe, the expansion pipe and the supporting pipe are both in threaded connection with the threaded rod, the supporting pipe is fixedly connected with an insertion rod, and the insertion rod is fixedly connected with the hook body. The included angle between the inserting rod and the supporting pipe is an acute angle. The utility model discloses an expansion hook for tunnel drilling construction, and aims to provide an expansion hook for tunnel drilling construction to solve the problems that in the prior art, when an expansion hook faces a complex geological structure, such as the uneven end face of a wall hole wall, stable installation is difficult to achieve, and the hook is prone to loosening and falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of expansion hooks, in particular to an expansion hook used for tunnel drilling construction. Background Art

[0002] Expansion hooks are crucial connecting and fixing components in tunnel drilling construction, and their stability is directly related to the safety and efficiency of drilling operations. However, existing expansion hooks are difficult to securely install in complex geological structures, such as uneven wall end faces, which can easily lead to the hooks loosening and falling off. Utility Model Content

[0003] In view of this, the purpose of the present utility model is to provide an expansion hook for tunnel drilling construction, so as to solve the problem in the prior art that the expansion hook is difficult to achieve stable installation when facing complex geological structures, such as uneven end faces of wall holes, which easily leads to the hook loosening and falling off.

[0004] The utility model is achieved through the following technical solutions:

[0005] An expansion hook for tunnel drilling construction includes a threaded rod and a hook body fixedly connected to one end of the threaded rod. An expansion tube and a support tube are sleeved on the threaded rod. Both the expansion tube and the support tube are threadedly connected to the threaded rod. An insertion rod is fixedly connected to the support tube. The angle between the insertion rod and the support tube is an acute angle.

[0006] Furthermore, there are multiple insertion rods, and the multiple insertion rods are evenly distributed along the circumference of the support tube.

[0007] Furthermore, the expansion assembly includes a notch opened at one end of the expansion tube away from the hook body, the notch extends along the length direction of the expansion tube, and the end of the expansion tube away from the hook body is retracted toward the central axis of the expansion tube when it is not expanded. The expansion tube is located on the side of the support tube away from the hook body, and an expansion assembly is installed between the threaded rod and the expansion tube.

[0008] Furthermore, one end of the expansion tube away from the hook body is fixedly connected to a limiting block, and the limiting block is arc-shaped.

[0009] Furthermore, a limit bar is fixedly connected to the expansion tube, and the limit bar extends along the length direction of the expansion tube.

[0010] Furthermore, a gasket is fixedly connected to one end of the expansion tube close to the hook body.

[0011] Furthermore, a plurality of protruding teeth are fixedly connected to a side wall of the gasket away from the hook body, and the plurality of protruding teeth are evenly distributed on the gasket.

[0012] Furthermore, a sphere is slidably connected in the expansion tube, and the sphere abuts against an end of the threaded rod away from the hook body.

[0013] Furthermore, a handle is fixedly connected to the outer wall of the support tube.

[0014] Furthermore, one end of the threaded rod close to the hook body is fixedly connected with a clamping block, and the clamping block is hexagonal.

[0015] The beneficial effects of the present invention are:

[0016] This expansion hook, used for tunnel drilling construction, is installed by inserting a threaded rod and expansion tube into a hole in the wall. The support tube is then rotated clockwise, causing the rod to move toward the wall and penetrate the wall. The hook body and threaded rod are then rotated clockwise, moving them toward the wall. The expansion assembly allows the expansion tube to abut against the wall hole, securing the expansion tube to the wall. Compared to existing technologies, inserting the rod into the wall allows the expansion hook to be more securely installed even when the end face of the wall hole is uneven, reducing the risk of the hook loosening or falling off.

[0017] Other advantages, objectives, and features of the present invention will be described in detail in the following description and, to some extent, will be apparent to those skilled in the art upon examination and study of the following or may be learned from practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of state 1 of the present utility model;

[0019] Figure 2 This is a schematic structural diagram of the second state of the present utility model;

[0020] Figure 3 It is a schematic diagram of the local structure of the utility model.

[0021] In the picture:

[0022] 1. Threaded rod; 2. Hook; 3. Expansion tube; 4. Support tube; 5. Insert rod; 6. Notch; 7. Limit block; 8. Limit strip; 9. Gasket; 10. Protruding teeth; 11. Ball; 12. Handle; 13. Block. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0025] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] In the above description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "one side", "the other side" and the like is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly placed when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, structure and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0027] In addition, the term "same" and other terms do not mean that the components must be absolutely the same, but there can be slight differences. The term "vertical" only means that the position relationship between the components is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly inclined.

[0028] Please refer to Figure 1-3 The utility model provides a kind of technical scheme: an expansion hook for gallery drilling construction, including threaded rod 1 and the hook body 2 of fixed connection in threaded rod 1 one end, threaded rod 1 is equipped with expansion pipe 3 and support pipe 4, expansion pipe 3 and support pipe 4 are all with threaded rod 1 screw connection, support pipe 4 is fixedly connected with inserting rod 5, the included angle between inserting rod 5 and support pipe 4 is acute angle, expansion pipe 3 is located in the side away from hook body 2 of support pipe 4, and expansion assembly is installed between threaded rod 1 and expansion pipe 3.

[0029] Working principle and use method:

[0030] Step one: insert the threaded rod 1 and the expansion tube 3 into the hole formed on the wall.

[0031] Step two: rotate the support tube 4 clockwise to move the insertion rod 5 towards the wall and insert it into the wall.

[0032] Step three: rotate the hook body 2 and the threaded rod 1 clockwise to move them towards the wall and fix the expansion tube 3 to the wall hole wall through the expansion assembly.

[0033] Compared with the prior art, by inserting the insertion rod 5 into the wall, the expansion hook can be more stably installed when the wall hole wall end surface is uneven, reducing the risk of hook loosening and falling off.

[0034] In this embodiment, the number of insertion rods 5 is multiple, and the multiple insertion rods 5 are evenly distributed along the circumferential direction of the support tube 4.

[0035] In this scheme, by designing the number of insertion rods 5 as multiple, and the multiple insertion rods 5 are evenly distributed along the circumferential direction of the support tube 4. The connection between the expansion hook and the wall is more stable.

[0036] In this embodiment, the expansion assembly includes a notch 6 formed at one end of the expansion tube 3 away from the hook body 2, the notch 6 extends along the length direction of the expansion tube 3, and the one end of the expansion tube 3 away from the hook body 2 is folded towards the central axis of the expansion tube 3 when not expanded.

[0037] In this scheme, by forming a notch 6 at one end of the expansion tube 3 away from the hook body 2, the notch 6 extends along the length direction of the expansion tube 3, and the one end of the expansion tube 3 away from the hook body 2 is folded towards the central axis of the expansion tube 3 when not expanded, as shown in Figure 1 , rotate the hook body 2 and the threaded rod 1 clockwise to move them towards the wall, and expand the one end of the expansion tube 3 away from the hook body 2 to abut against the wall hole wall through the threaded rod 1, as shown in Figure 2 , to fix the expansion tube 3 to the wall hole wall.

[0038] In this embodiment, the one end of the expansion tube 3 away from the hook body 2 is fixedly connected with a limiting block 7, and the limiting block 7 is arc-shaped.

[0039] In this scheme, by fixing the limiting block 7 to the one end of the expansion tube 3 away from the hook body 2, the limiting block 7 is arc-shaped. When the one end of the expansion tube 3 away from the hook body 2 is expanded, the limiting block 7 is clamped into the wall hole wall, as shown in Figure 2 , to make the connection between the expansion tube 3 and the wall hole wall more firm.

[0040] In this embodiment, the expansion pipe 3 is fixedly connected with a limiting strip 8, and the limiting strip 8 extends along the length direction of the expansion pipe 3.

[0041] In this embodiment, the expansion pipe 3 is fixedly connected with a limiting strip 8, and the limiting strip 8 extends along the length direction of the expansion pipe 3.

[0042] In this embodiment, the expansion pipe 3 is fixedly connected with a limiting strip 8, and the limiting strip 8 extends along the length direction of the expansion pipe 3.

[0043] In this embodiment, the expansion pipe 3 is fixedly connected with a limiting strip 8, and the limiting strip 8 extends along the length direction of the expansion pipe 3.

[0044] In this embodiment, the expansion pipe 3 is fixedly connected with a limiting strip 8, and the limiting strip 8 extends along the length direction of the expansion pipe 3.

[0045] In this embodiment, the expansion pipe 3 is fixedly connected with a limiting strip 8, and the limiting strip 8 extends along the length direction of the expansion pipe 3.

[0046] In this embodiment, the expansion pipe 3 is fixedly connected with a limiting strip 8, and the limiting strip 8 extends along the length direction of the expansion pipe 3.

[0047] In this embodiment, the expansion pipe 3 is fixedly connected with a limiting strip 8, and the limiting strip 8 extends along the length direction of the expansion pipe 3.

[0048] In this embodiment, the expansion pipe 3 is fixedly connected with a limiting strip 8, and the limiting strip 8 extends along the length direction of the expansion pipe 3.

[0049] In this embodiment, the expansion pipe 3 is fixedly connected with a limiting strip 8, and the limiting strip 8 extends along the length direction of the expansion pipe 3.

[0050] In this embodiment, the expansion pipe 3 is fixedly connected with a limiting strip 8, and the limiting strip 8 extends along the length direction of the expansion pipe 3.

[0051] In this solution, a hexagonal block 13 is fixedly connected to one end of the threaded rod 1 near the hook body 2. The block 13 is clamped by a tool such as a wrench, so that the rotation of the threaded rod 1 and the hook body 2 is more labor-saving.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An expansion hook for tunnel drilling construction, characterized by: The invention comprises a threaded rod (1) and a hook body (2) fixedly connected to one end of the threaded rod (1); an expansion tube (3) and a support tube (4) are sleeved on the threaded rod (1); the expansion tube (3) and the support tube (4) are both threadedly connected to the threaded rod (1); an insertion rod (5) is fixedly connected to the support tube (4); the included angle between the insertion rod (5) and the support tube (4) is an acute angle; the expansion tube (3) is located on a side of the support tube (4) away from the hook body (2); and an expansion assembly is installed between the threaded rod (1) and the expansion tube (3).

2. The expansion hook for tunnel drilling construction according to claim 1, characterized in that: There are multiple insertion rods (5), and the multiple insertion rods (5) are evenly distributed along the circumference of the support tube (4).

3. The expansion hook for tunnel drilling construction according to claim 1, characterized in that: The expansion assembly comprises a notch (6) formed at one end of the expansion tube (3) away from the hook body (2), wherein the notch (6) extends along the length direction of the expansion tube (3), and when the end of the expansion tube (3) away from the hook body (2) is not expanded, the notch (6) is retracted toward the central axis of the expansion tube (3).

4. The expansion hook for tunnel drilling construction according to claim 3, characterized in that: One end of the expansion tube (3) away from the hook body (2) is fixedly connected to a limiting block (7), and the limiting block (7) is arc-shaped.

5. The expansion hook for tunnel drilling construction according to claim 1, characterized in that: A limit strip (8) is fixedly connected to the expansion tube (3), and the limit strip (8) extends along the length direction of the expansion tube (3).

6. The expansion hook for tunnel drilling construction according to claim 1, characterized in that: A gasket (9) is fixedly connected to one end of the expansion tube (3) close to the hook body (2).

7. The expansion hook for tunnel drilling construction according to claim 6, characterized in that: A plurality of protruding teeth (10) are fixedly connected to a side wall of the gasket (9) away from the hook body (2), and the plurality of protruding teeth (10) are evenly distributed on the gasket (9).

8. The expansion hook for tunnel drilling construction according to claim 1, characterized in that: A spherical body (11) is slidably connected in the expansion tube (3), and the spherical body (11) abuts against an end of the threaded rod (1) away from the hook body (2).

9. The expansion hook for tunnel drilling construction according to claim 1, characterized in that: A handle (12) is fixedly connected to the outer side wall of the support tube (4).

10. The expansion hook for tunnel drilling construction according to claim 1, characterized in that: One end of the threaded rod (1) close to the hook body (2) is fixedly connected with a clamping block (13), and the clamping block (13) is hexagonal.

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