Advanced small catheter positioning device

Abstract

This utility model discloses an advanced small guide tube positioning device, including a base and a guide tube; the base includes a mounting plate and a movable plate; the movable plate is rotatably mounted on the mounting plate; the movable plate has a mounting hole; the guide tube obliquely passes through the mounting hole and is fixed to the movable plate by welding; an angle scale plate is movably engaged with one edge of the mounting plate; the angle scale plate is used to indicate the rotation angle of the movable plate; fasteners are provided on the mounting plate; the fasteners are used for fixed installation with the arch frame; this utility model ensures the fixed angle between the guide tube and the movable plate during use by welding the guide tube to the movable plate, and changes in the angle of the movable plate are easy to observe and readjust, which is beneficial for adapting to complex construction environments.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, and in particular to an advanced small guide pipe positioning device. Background Technology

[0002] Pre-support pipes are a construction technique used in tunnel and underground engineering for advanced support. They are primarily used for the pre-reinforcement of weak and fractured strata (such as loose soil, fault zones, and water-rich strata). Grouting is performed through injection holes on the pre-support pipes to control surrounding rock deformation, prevent collapse, and ensure excavation safety. Pre-support pipe positioning devices are used in tunnel construction to precisely control the spatial position, angle, and spacing of the pre-support pipes, ensuring they are driven into the strata according to design requirements, thereby improving support effectiveness and construction quality.

[0003] Because different construction requirements dictate different angles for the pre-installed guide tubes, some existing pre-installed guide tubes employ adjustable angle structures to ensure adjustable installation angles. For example, patent CN220336906U describes an adjustable pre-installed guide tube positioning device, which achieves adjustable guide tube angle through a movable connection between the guide tube and the base, thereby enabling adjustment of the pre-installed guide tube angle within the guide tube. However, in application, it has been found that this type of movable guide tube positioning device cannot effectively observe and determine the angle when adjusting the guide tube, requiring a second person to assist in determining the angle, which affects work efficiency. Furthermore, pre-installed guide tubes often need to be distributed at multiple points. Additionally, if the fasteners loosen after fixing, it is difficult to observe the angle deviation of the guide tube during use. Utility Model Content

[0004] The purpose of this invention is to solve the problems of the prior art and provide an advanced small catheter positioning device.

[0005] The objective of this utility model is achieved through the following technical solution: an advanced small guide tube positioning device, comprising a base and a guide tube; the base includes a mounting plate and a movable plate; the movable plate is rotatably mounted on the mounting plate; the movable plate has a mounting hole; the guide tube obliquely passes through the mounting hole and is fixed to the movable plate by welding; an angle scale plate is movably engaged with one edge of the mounting plate; the angle scale plate is used to indicate the rotation angle of the movable plate; fasteners are provided on the mounting plate; the fasteners are used for fixed installation with an arch frame;

[0006] The angle between the axis of the guide tube and the plane of the movable plate is defined as α; α is 30° to 60°.

[0007] The guide tube is fitted with a small pre-guide tube; the inner diameter of the guide tube is larger than the outer diameter of the small pre-guide tube.

[0008] The mounting plate is provided with a rotating groove; a rotating shaft is provided in the rotating groove; one end of the rotating shaft is connected to the side wall of the rotating groove through a bearing; the other end of the rotating shaft is provided with a threaded section; one end of the rotating shaft with the threaded section passes through the rotating groove and is fastened to the mounting plate by a lock nut; the rotating shaft is fixedly connected to the movable plate.

[0009] The mounting plate has a slot corresponding to the angle scale plate; the bottom of the slot has a limiting hole; the lower edge of the angle scale plate has a protrusion corresponding to the limiting hole; the protrusion is movably engaged in the limiting hole.

[0010] The fasteners include bolts and nuts; the mounting plate has positioning holes corresponding to the bolts; the nuts are fitted onto the bolts; one end of the bolt is tightly abutted against the arch frame;

[0011] A further technical solution is to use a transparent material for the angle scale plate.

[0012] This utility model has the following advantages:

[0013] 1. This utility model ensures that the angle between the guide tube and the movable plate is fixed during use by welding and fixing the guide tube to the movable plate. Changes in the angle of the movable plate are easy to observe and readjust, which is beneficial to adapting to complex construction environments.

[0014] 2. The angle of the movable plate of this utility model can be directly observed and determined through the angle scale plate, without the need for assistance from other staff, which can improve work efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the installation of this utility model.

[0017] Figure 3 This is a structural schematic diagram of the present invention from another perspective.

[0018] Figure 4 This is a structural diagram of the mounting plate.

[0019] In the diagram: 1. Guide tube; 2. Mounting plate; 3. Movable plate; 4. Angle scale plate; 5. Fastener; 6. Lead-in small guide tube; 7. Rotating groove; 8. Threaded section; 9. Locking nut; 10. Slot; 11. Limiting hole; 12. Protrusion; 13. Bolt; 14. Nut; 15. Positioning hole; 16. Rotating shaft. Detailed Implementation

[0020] 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 embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0023] 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.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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. They are only used 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. Therefore, they should not be construed as limitations 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.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example 1: As Figures 1 to 4As shown, an advanced small guide tube 6 positioning device includes a base and a guide tube 1; the base includes a mounting plate 2 and a movable plate 3; the movable plate 3 is rotatably mounted on the mounting plate 2; the movable plate 3 has a mounting hole; the guide tube 1 obliquely passes through the mounting hole and is fixed to the movable plate 3 by welding; an angle scale plate 4 is movably engaged on one edge of the mounting plate 2; the angle scale plate 4 is used to indicate the rotation angle of the movable plate 3; fasteners 5 are provided on the mounting plate 2; the fasteners 5 are used for fixed installation with the arch frame; by welding the guide tube 1 to the movable plate 3, the angle between the guide tube 1 and the movable plate 3 is fixed during use, and changes in the angle of the movable plate 3 are easy to observe and readjust, which is beneficial to adapting to complex construction environments; changes in the angle of the movable plate 3 can be directly observed and determined through the angle scale plate 4 without the assistance of other personnel, which improves work efficiency.

[0027] The angle between the axis of the guide tube 1 and the plane of the movable plate 3 is defined as α; α is 30° to 60°.

[0028] The guide tube 1 is fitted with a pre-guided small guide tube 6; the inner diameter of the guide tube 1 is larger than the outer diameter of the pre-guided small guide tube 6.

[0029] The mounting plate 2 is provided with a rotating groove 7; a rotating shaft is provided in the rotating groove 7; one end of the rotating shaft is connected to the side wall of the rotating groove 7 through a bearing; the other end of the rotating shaft is provided with a threaded section 8; one end of the rotating shaft with the threaded section 8 passes through the rotating groove 7 and is fastened to the mounting plate 2 by a locking nut 9; the rotating shaft is fixedly connected to the movable plate 3; the rotating groove 7 facilitates the rotation of the rotating shaft and the movable plate 3 fixed thereon; an arc-shaped fastener can be fixedly connected to the rotating shaft, and the arc-shaped fastener is connected to the movable plate 3; when the rotating shaft rotates, the locking nut 9 on the rotating shaft is loosened, adjusted to a suitable angle, and then the locking nut 9 is tightened to fix it, which is convenient to operate and allows for observation and determination of the angle while operating.

[0030] The mounting plate 2 has a slot 10 corresponding to the angle scale plate 4; the bottom of the slot 10 has a limiting hole 11; the lower edge of the angle scale plate 4 has a protrusion 12 corresponding to the limiting hole 11; the protrusion 12 is movably engaged in the limiting hole 11; in this embodiment, the angle scale plate 4 can be detachably connected to the mounting plate 2 by the engaging engagement of the limiting hole 11 and the protrusion 12 in the slot 10, which is beneficial for packaging and transportation, and can be installed when in use and disassembled when not in use, which is beneficial for flexible use.

[0031] The fastener 5 includes a bolt 13 and a nut 14; the mounting plate 2 is provided with a positioning hole 15 corresponding to the bolt 13; the nut 14 is fitted onto the bolt 13; one end of the bolt 13 is tightly abutted against the arch frame;

[0032] The angle scale plate 4 is made of transparent material; the transparent material of the angle scale plate 4 makes it easy to read the degree from both sides, and facilitates flexible use.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pre-positioning device for small catheters, characterized in that: It includes a base and a guide tube; the base includes a mounting plate and a movable plate; the movable plate is rotatably mounted on the mounting plate; the movable plate has a mounting hole; the guide tube obliquely passes through the mounting hole and is fixed to the movable plate by welding; an angle scale plate is movably engaged with one edge of the mounting plate; the angle scale plate is used to indicate the rotation angle of the movable plate; fasteners are provided on the mounting plate; the fasteners are used for fixed installation with the arch frame.

2. The advanced small catheter positioning device according to claim 1, characterized in that: The angle between the axis of the guide tube and the plane of the movable plate is defined as α; α is 30° to 60°.

3. The advanced small catheter positioning device according to claim 1, characterized in that: The guide tube is fitted with a small pre-guide tube; the inner diameter of the guide tube is larger than the outer diameter of the small pre-guide tube.

4. The advanced small catheter positioning device according to claim 1, characterized in that: The mounting plate is provided with a rotating groove; a rotating shaft is provided in the rotating groove; one end of the rotating shaft is connected to the side wall of the rotating groove through a bearing; the other end of the rotating shaft is provided with a threaded section; one end of the rotating shaft with the threaded section passes through the rotating groove and is fastened to the mounting plate by a lock nut; the rotating shaft is fixedly connected to the movable plate.

5. The advanced small catheter positioning device according to claim 4, characterized in that: The mounting plate has a slot corresponding to the angle scale plate; the bottom of the slot has a limiting hole; the lower edge of the angle scale plate has a protrusion corresponding to the limiting hole; the protrusion is movably engaged in the limiting hole.

6. The advanced small catheter positioning device according to claim 1, characterized in that: The fasteners include bolts and nuts; the mounting plate has positioning holes corresponding to the bolts; the nuts are fitted onto the bolts; one end of the bolts is in close contact with the arch frame.

7. The advanced small catheter positioning device according to claim 1, characterized in that: The angle scale plate is made of transparent material.

Images