Auxiliary tool for positioning advanced small guide pipe of tunnel

Abstract

The utility model provides a tunnel advanced small guide pipe positioning auxiliary tool which comprises a clamping seat, a first locking device, a second locking device and a positioning device, the clamping seat can be opened and locked, the clamping seat is provided with a first locking device used for keeping the clamping seat in a locking state, the clamping seat can be clamped and fixed on transverse section steel in a tunnel in the locking state, and the first locking device can be unlocked; the guide cylinder is arranged on the clamping base through a first pivot joint shaft and can swing around the first pivot joint shaft, the first pivot joint shaft is arranged on the clamping base in a radial moving mode, and a small catheter can penetrate through an inner hole of the guide cylinder; and the second locking device is used for limiting the swinging of the guide cylinder around the first pivoting shaft and the radial movement of the first pivoting shaft relative to the clamping seat. The utility model can effectively reduce the deviation of the installation angle and position of the small conduit, ensures the construction quality, is convenient for constructors to operate, can be repeatedly used, and effectively facilitates the construction operation.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to an auxiliary tooling for positioning a small tunnel advance guide tube. Background Art

[0002] During the construction of the tunnel, advance support of the tunnel is a very important process in the pre-reinforcement and pre-payment of the weak surrounding rock. The construction process of the advance small conduit is generally to pre-drill holes on the steel arch frame in the tunnel, then use a rock drill to set and install the small conduit, and finally perform grouting, which can stabilize the front arch and prevent the arch from falling off and sliding.

[0003] At present, in the construction of tunnel advance small ducts, workers usually manually operate related equipment to pre-drill holes in steel sections and drive and install small ducts. The construction is difficult, and the angle of the small ducts during drilling and installation is difficult to control. After the construction is completed, the angle of the small ducts often deviates, resulting in serious over-excavation of the arch, which is very unfavorable for stabilizing the arch crown and reducing over-excavation. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art and to provide a tunnel advance small conduit positioning auxiliary tooling which helps to ensure construction quality and is convenient for operation.

[0005] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0006] A tunnel advance small catheter positioning auxiliary tool, comprising:

[0007] A clamp seat, the clamp seat can be opened and locked, a first locking device for keeping the clamp seat in a locked state is provided on the clamp seat, the clamp seat can be clamped and fixed on the transverse steel in the tunnel in the locked state, and the first locking device can be unlocked;

[0008] A guide cylinder is arranged on the clamp seat through a first pivot axis and can swing around the first pivot axis, the first pivot axis is arranged on the clamp seat to be radially movable, and the inner hole of the guide cylinder can allow a small catheter to pass through;

[0009] The unlockable second locking device is used to limit the swing of the guide cylinder around the first pivot axis and the radial movement of the first pivot axis relative to the clamping seat.

[0010] Preferably, the clamp seat includes two clamp arms, the tail ends of the two clamp arms are pivoted together by a second pivot axis, the first locking device includes a first locking screw connected to the two clamp arms and a first locking nut threaded on the first locking screw, and the rotation of the first locking nut along the first locking screw can drive the two clamp arms to swing relative to each other.

[0011] Preferably, a first handle is provided on the first locking screw and / or the first locking nut.

[0012] Preferably, a clamping groove is provided on the inner side of each clamping arm, and the clamping groove is adapted to the flange of the steel section in the tunnel.

[0013] Preferably, the card slot is padded with a soft cushion.

[0014] Preferably, each of the clamping arms comprises two clamping plates which are spaced apart from each other, and when the clamping seat is in a locked state, each of the clamping plates is clamped and fixed together on the steel section in the tunnel.

[0015] Preferably, the first pivot axis is a second locking screw, the clamp seat is provided with a strip hole, the second locking screw is radially movably arranged in the strip hole, and the second locking device includes a second locking nut arranged on the second locking screw.

[0016] Preferably, a second handle is provided on the second locking screw and / or the second locking nut.

[0017] Preferably, the clamp seat is also provided with an elastic device for driving the clamp seat to move toward a locking state.

[0018] The beneficial effect of the utility model is that when the positioning auxiliary tool is in use, the clamp seat can first be clamped to the steel section in the tunnel, and the clamp seat can be kept in a locked state by the first locking device, thereby fixing the positioning auxiliary tool on the steel section, and then the guide cylinder can be swung and moved to adjust the guide cylinder to the required angle and position, and then the guide cylinder can be fixed by the second locking device, and then the inner hole of the guide cylinder can be used to position the drill bit, small catheter, etc. during the construction of the advance small catheter, which can effectively reduce the deviation of the installation angle and position of the small catheter, ensure the construction quality, and facilitate the operation of the construction personnel. After the construction is completed, it is only necessary to unlock the first locking device and the second unlocking device to remove the positioning auxiliary tool from the steel section, and it can be reused in subsequent construction, which effectively facilitates the construction operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 This is a schematic diagram of the application of the preferred embodiment of the utility model;

[0021] Figure 2 It is a side view structural diagram of the clamp arm in the preferred embodiment of the utility model.

[0022] Among them, the reference numerals in the figure are:

[0023] 10. Clamp seat; 11. Clamp arm; 111. Clamp plate; 12. Second pivot axis; 13. Slot; 14. Strip hole; 21. First locking screw; 22. First handle; 221. Sleeve; 30. Guide cylinder; 40. First pivot axis; 50. Section steel. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0027] Reference Figure 1 and Figure 2The preferred embodiment of the utility model is a tunnel advance small catheter positioning auxiliary tooling, comprising: a clamp seat 10, the clamp seat 10 can be opened and locked, and a first locking device for keeping the clamp seat 10 in a locked state is arranged on the clamp seat 10, and the clamp seat 10 can be clamped and fixed on the transverse steel 50 in the tunnel in the locked state, and the first locking device can be unlocked; a guide cylinder 30, which is arranged on the clamp seat 10 through a first pivot axis 40 and can swing around the first pivot axis 40, and the first pivot axis 40 can be radially movably arranged on the clamp seat 10, and the inner hole of the guide cylinder 30 can be used for the small catheter to pass through; an unlockable second locking device is used to limit the swing of the guide cylinder 30 around the first pivot axis 40 and the radial movement of the first pivot axis 40 relative to the clamp seat 10. When the present positioning auxiliary tool is in use, the clamp seat 10 can be firstly clamped to the steel section 50 in the tunnel, and the clamp seat 10 can be kept in a locked state by a first locking device, thereby fixing the present positioning auxiliary tool on the steel section 50, and then the guide cylinder 30 can be swung and moved to adjust the guide cylinder 30 to the required angle and position, and then the guide cylinder 30 can be fixed by a second locking device, after which the inner hole of the guide cylinder 30 can be used to position the drill bit, small catheter, etc. during the construction of the advance small catheter, which can effectively reduce the deviation of the installation angle and position of the small catheter, ensure the construction quality, and facilitate the operation of the construction personnel. After the construction is completed, it is only necessary to unlock the first locking device and the second unlocking device to remove the present positioning auxiliary tool from the steel section 50, and it can be reused in subsequent construction, which effectively facilitates the construction operation.

[0028] As a preferred embodiment of the utility model, it may also have the following additional technical features:

[0029] In this embodiment, the clamp seat 10 includes two clamp arms 11, the tail ends of the two clamp arms 11 are pivoted together through a second pivot shaft 12, the first locking device includes a first locking screw 21 connected to the two clamp arms 11 and a first locking nut screwed on the first locking screw 21, the first locking nut can drive the two clamp arms 11 to swing relative to each other along the rotation of the first locking screw 21, and the clamp seat 10 has a simple and reliable structure, and is easy to manufacture and operate. In other embodiments, the clamp seat 10 can also adopt other suitable structures, for example, it can also adopt the structure of two clamp arms 11, at least one of the two clamp arms 11 can be movably set on a base, and the opening and locking are realized by the relative movement of the two clamp arms 11; similarly, the first locking device can also adopt other commonly used locking structures such as buckle, latch structure, etc., but is not limited thereto.

[0030] In this embodiment, a first handle 22 is provided on the first locking screw 21, so that the opening and locking operations of the clamp seat 10 are convenient and easy to use. In this embodiment, one end of the first locking screw 21 is relatively fixed on one clamp arm 11 and passes through the other clamp arm 11. A sleeve 221 is provided on the first handle 22 and an internal thread is provided in the sleeve 221 to serve as a first locking nut. The sleeve 221 is abutted against the clamp arm 11 to push the clamp arm 11 to swing when the sleeve 221 rotates. In other embodiments, the clamp arm 11 can also be pushed to swing by fixing the first locking nut on the clamp arm 11 and rotating the first locking screw 21, and the corresponding first handle 22 can be provided on the first locking screw 21.

[0031] In this embodiment, a slot 13 is provided on the inner side of each clamp arm 11. The slot 13 is adapted to the flange of the steel section 50 in the tunnel, which is beneficial to improving the firmness of the clamp seat 10 fixed on the steel section 50, preventing loosening and sliding, and helping to ensure construction quality.

[0032] In this embodiment, a soft pad is provided inside the slot 13, which helps to increase the friction force and thus improve the stability of the clamping seat 10 fixed on the steel 50, and helps to reduce the friction and extrusion of the clamping seat 10 and the steel 50, which helps to extend the service life. The soft pad can be made of common materials such as rubber, and can be fixed in the slot 13 by common methods such as coating, pasting, and bundling.

[0033] In this embodiment, each clamping arm 11 includes two spaced-apart clamping plates 111. When the clamping seat 10 is in a locked state, each clamping plate 111 is clamped and fixed together on the steel section 50 in the tunnel, thereby helping to prevent the clamping seat 10 from swinging during use and further ensuring the construction quality.

[0034] In this embodiment, the first pivot shaft 40 is a second locking screw, the clamping seat 10 is provided with a strip hole 14, the second locking screw can be radially moved in the strip hole 14, and the second locking device includes a second locking nut provided on the second locking screw, which has a simple and reliable structure and is easy to manufacture and operate. In other embodiments, the first pivot shaft 40 and the second locking device can also adopt other suitable structures, which are not limited to this.

[0035] A second handle may be provided on the second locking screw and / or the second locking nut, so that the unlocking and locking operations of the second locking device can be achieved without the aid of tools, thereby facilitating operation and use.

[0036] In this embodiment, the clamp seat 10 is also provided with an elastic device for driving the clamp seat 10 to move toward the locking state, so that in the process of fixing the clamp seat 10 on the steel 50, the elastic device can pre-clamp the clamp seat 10, which is convenient for the subsequent operation of the first locking device and easy to use. The elastic device can be a common elastic structure such as a torsion spring and a pull ring arranged between the two clamp arms 11.

[0037] Under the premise that no conflict occurs, those skilled in the art may freely combine and superimpose the above-mentioned additional technical features.

[0038] The above description is only a preferred implementation mode of the present utility model. Any technical solution that achieves the purpose of the present utility model by basically the same means belongs to the protection scope of the present utility model.

Claims

1. A tunnel advance small catheter positioning auxiliary tooling, characterized in that: include: A clamping seat (10), the clamping seat (10) can be opened and locked, a first locking device for keeping the clamping seat (10) in a locked state is provided on the clamping seat (10), the clamping seat (10) can be clamped and fixed on the transverse steel (50) in the tunnel in the locked state, and the first locking device can be unlocked; A guide cylinder (30) is arranged on the clamp seat (10) via a first pivot axis (40) and can swing around the first pivot axis (40). The first pivot axis (40) is arranged on the clamp seat (10) to be radially movable. The inner hole of the guide cylinder (30) can allow a small catheter to pass through. The unlockable second locking device is used to limit the swinging of the guide cylinder (30) around the first pivot axis (40) and the radial movement of the first pivot axis (40) relative to the clamping seat (10).

2. The tunnel advance small catheter positioning auxiliary tooling according to claim 1 is characterized in that: The clamp seat (10) comprises two clamp arms (11), the tail ends of the two clamp arms (11) are pivotally connected together via a second pivot shaft (12), the first locking device comprises a first locking screw (21) connected to the two clamp arms (11) and a first locking nut screwed on the first locking screw (21), and the first locking nut can drive the two clamp arms (11) to swing relative to each other by rotating along the first locking screw (21).

3. The tunnel advance small catheter positioning auxiliary tooling according to claim 2 is characterized in that: The first locking screw (21) and / or the first locking nut is provided with a first handle (22).

4. The tunnel advance small catheter positioning auxiliary tooling according to claim 2 is characterized in that: A clamping groove (13) is provided on the inner side of each clamping arm (11), and the clamping groove (13) is adapted to the flange of the steel section (50) in the tunnel.

5. The tunnel advance small catheter positioning auxiliary tooling according to claim 4 is characterized in that: The card slot (13) is padded with a soft cushion.

6. The tunnel advance small catheter positioning auxiliary tooling according to claim 2 is characterized in that: Each of the clamping arms (11) comprises two clamping plates (111) that are spaced apart from each other. When the clamping seat (10) is in a locked state, each of the clamping plates (111) is clamped and fixed together on the steel section (50) in the tunnel.

7. The tunnel advance small catheter positioning auxiliary tooling according to claim 1 is characterized in that: The first pivot axis (40) is a second locking screw, the clamp seat (10) is provided with a strip hole (14), the second locking screw is radially movable in the strip hole (14), and the second locking device includes a second locking nut arranged on the second locking screw.

8. The tunnel advance small catheter positioning auxiliary tooling according to claim 7 is characterized in that: The second locking screw and / or the second locking nut is provided with a second handle.

9. The tunnel advance small catheter positioning auxiliary tooling according to claim 1 is characterized in that: The clamp seat (10) is also provided with an elastic device for driving the clamp seat (10) to move toward a locking state.

Images