CN217063087U - Threading device for embedded wire pipes in wall - Google Patents

Abstract

The utility model provides a pre-buried spool threading device in wall, relates to building engineering technical field, including segmentation assembled seal wire, connect in the spring of seal wire front end, connect in the guide head in spring the place ahead, the front end of spring rotate with the rear end of guide head and be connected, the rear end of spring and the front end fixed connection of seal wire, the guide head be the hollow structure who makes by elastic material, including columniform base with locate the bullet head shape arch of base front end. This is novel can effectively reduce the threading degree of difficulty, improves threading efficiency, is particularly suitable for the spool threading that has the structure of turning round to can dispose the length of seal wire according to the length of spool, avoid the waste of seal wire, improve the flexibility of using.

Description

A kind of threading device for embedded line pipe in wall

technical field

The utility model relates to the technical field of construction engineering, in particular to a threading device for a pre-embedded line pipe in a wall.

Background technique

The traditional way of threading the wire is to pull the wire into the conduit through a metal guide wire. Existing patent documents also disclose some improved threading devices. Most of these devices improve the pulling form of the guide wire and the advancing method of the guide wire. However, these solutions still have the following defects: 1. The guide wire is online It is difficult to turn in the tube; 2. The process of advancing the guide wire is still laborious; 3. The length of the guide wire is fixed, but the length of the wire tube is very different, resulting in the inflexibility of the guide wire. The length of the tube is adapted. When the guide wire is too long, the guide wire needs to be cut off. If the guide wire is too short, it cannot be used for threading work, resulting in waste of the guide wire and trouble in threading work.

Utility model content

The utility model provides a threading device for a pre-embedded line pipe in a wall, which aims to solve the problems existing in the prior art.

In order to achieve the above-mentioned purpose, the technical scheme adopted by this new model is:

A pre-embedded wire pipe threading device in a wall comprises a segmented assembled guide wire, a spring connected to the front end of the guide wire, and a guide head connected to the front of the spring, wherein the front end of the spring is rotatably connected with the rear end of the guide head, The rear end of the spring is fixedly connected with the front end of the guide wire, and the guide head is a hollow structure made of elastic material, including a cylindrical base and a bullet-shaped protrusion arranged at the front end of the base.

Preferably, the guide head is made of elastic rubber material, and the outer surface of the base of the guide head is in clearance fit with the inner surface of the wire tube.

Preferably, it also includes a piston, the piston is in interference fit with the port of the line pipe, a pressure plate is fixedly connected to the outer end surface of the piston, the piston is provided with a sliding hole penetrating the piston and the pressure plate, and the guide wire passes through Through the sliding hole, and clearance fit with the sliding hole.

Preferably, the piston is further provided with a mounting hole penetrating the piston and the pressure plate, and a vent pipe is interference fit in the mounting hole, one end of the vent pipe extends into the line pipe, and the other end is connected with a high-pressure gas supply device.

Preferably, the guide wire is formed by detachable and fixed connection of several segments of the guide wire.

Preferably, the guide wire segment comprises a guide wire body, a stud fixedly arranged at the front end of the guide wire body, and a sleeve fixedly connected to the rear end of the guide wire body, and the inner surface of the sleeve is provided with internal threads, corresponding to the The adjacent guide wire segments are screwed with the stud through a sleeve.

Preferably, the stud and the sleeve are made of high-strength steel.

Preferably, a connecting rod is fixedly connected to the rear end of the base of the guide head, a connecting lug is connected to the front end of the spring, and the connecting rod and the connecting lug are rotatably connected through a thrust bearing.

The beneficial effects of the new type of wire pipe threading device embedded in the wall are as follows: the new type can effectively reduce the difficulty of threading and improve the threading efficiency, and is especially suitable for threading of the wire pipe with a turning structure, and the guide wire can be configured according to the length of the wire pipe. The length of the guide wire is avoided, and the flexibility of use is improved.

Description of drawings:

Fig. 1, the sectional structure schematic diagram when the new model is used;

Fig. 2, the sectional structure schematic diagram of the novel guide wire;

1. Wall; 2. Line pipe; 3. Guide head; 4. Connecting rod; 5. Thrust bearing; 6. Connecting ear; 7. Spring, 8. Guide wire; 8-1, Guide wire segment; 8- 2. Sleeve; 8-3. Stud; 9. Piston; 10. Pressure plate; 11. Breathing pipe.

Detailed ways:

The following describes the embodiments of the present invention in a step-by-step manner. This description is only a preferred embodiment of the present invention, and is not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements and improvements made within the scope of the present invention shall be included in the protection scope of this new model.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "top", "bottom", "inside" and "outer" are based on those shown in the accompanying drawings. The orientation or positional relationship is only for describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, as well as a specific orientation configuration and operation, so it should not be construed as a limitation of the present invention.

A pre-embedded wire pipe threading device in the wall, as shown in Figures 1 and 2, includes a segmented assembled guide wire 8, a spring 7 connected to the front end of the guide wire 8, and a guide head 3 connected to the front of the spring 7. The front end of the spring 7 is rotatably connected with the rear end of the guide head, and the rear end of the spring 7 is fixedly connected with the front end of the guide wire. The guide head 3 is a hollow structure made of elastic material, including a cylindrical base and a device. A bullet-shaped protrusion at the front of the base.

As shown in FIGS. 1 and 2 , the guide head 3 is made of elastic rubber material, and the outer surface of the base of the guide head 3 is in clearance fit with the inner surface of the wire tube 2 .

As shown in Figures 1 and 2, it also includes a piston 9. The piston 9 is in an interference fit with the port of the line pipe. A pressure plate 10 is fixedly connected to the outer end surface of the piston 9. The piston 9 is provided with a through piston and a pressure plate. The sliding hole (not shown in the figure), the guide wire 8 passes through the sliding hole and is clearance fit with the sliding hole.

As shown in Figures 1 and 2, the piston 9 is also provided with a mounting hole (not shown in the figure) penetrating the piston and the pressure plate, and a vent pipe 11 is fitted in the mounting hole by interference. One end of 11 extends into the line pipe 2, and the other end is connected with a high-pressure gas supply device (not shown in the figure).

As shown in FIGS. 1 and 2 , the guide wire 8 is formed by detachably and fixedly connecting several guide wire segments 8 - 1 .

As shown in Figures 1 and 2, the guide wire segment 8-1 includes a guide wire body, a stud 8-3 fixedly arranged at the front end of the guide wire body, and a sleeve 8-2 fixedly connected to the rear end of the guide wire body The inner surface of the sleeve is provided with an inner thread, and the adjacent guide wire segments are screwed with the stud through the sleeve. In practice, the dimensions of the stud and sleeve should not prevent the guide wire from being turned.

As shown in Figures 1 and 2, the stud and the sleeve are made of high-strength steel material to ensure the connection strength.

As shown in Figures 1 and 2, the rear end of the base of the guide head 3 is fixedly connected with a connecting rod 4, the front end of the spring 7 is connected with a connecting lug 6, and the connecting rod 4 and the connecting lug 6 pass through the thrust force Bearing 5 is rotatably connected.

The principle of use of this new model:

1. The function of the cylindrical base of the guide head 3 is to ensure the sliding direction of the guide head in the bobbin, so that the axis of the guide head is always roughly overlapped with the axis of the bobbin.

2. The guide head is made of elastic rubber material and is hollow. The purpose of this design is to make the guide head fully adapt to the change of the inner diameter of the wire tube and avoid the obstacle of the guide head passing through due to the partial diameter reduction of the wire tube.

3. The guide head is connected with the spring in rotation, which is convenient for adjusting the posture during traveling and overcoming the resistance. At the same time, the spring is convenient for the guide head to turn and turn.

4. The guide wire is composed of several guide wire segments. For different lengths of wire tubes, a guide wire can be formed by connecting or disassembling an appropriate number of guide wire segments, so as to meet the flexibility of use and avoid guide wires. waste.

5. Connect the high-pressure gas supply device through the breather pipe. When using, plug the piston into the inlet of the line pipe and press the pressure plate to prevent the gas from overflowing. The high-pressure gas is introduced into the line pipe to push the guide head to move quickly along the line pipe. The guide wire is quickly replenished into the wire tube along the sliding hole. Since the guide head is a hollow structure, the guide head can be easily moved without excessive pressure, thereby effectively improving the efficiency of threading.

Claims (8)

1. a pre-embedded wire pipe threading device in the wall is characterized in that: comprising a segmented assembled guide wire, a spring connected to the front end of the guide wire, a guide head connected to the front of the spring, the front end of the spring and the guide head The rear end of the spring is rotatably connected, and the rear end of the spring is fixedly connected to the front end of the guide wire. The guide head is a hollow structure made of elastic material, including a cylindrical base and a bullet-shaped protrusion arranged at the front end of the base. 2 . The device for threading a pre-embedded line pipe in a wall according to claim 1 , wherein the guide head is made of elastic rubber material, and the outer surface of the base of the guide head has a gap between the inner surface of the line pipe and the line pipe. 3 . Cooperate. 3. The device for threading a pre-embedded line pipe in a wall as claimed in claim 2, characterized in that it further comprises a piston, the piston is in an interference fit with the port of the line pipe, and a pressure plate is fixedly connected to the outer end face of the piston. The piston is provided with a sliding hole penetrating the piston and the pressing plate, and the guide wire passes through the sliding hole and is clearance-fitted with the sliding hole. 4. A device for threading a pre-embedded pipe in a wall as claimed in claim 3, wherein the piston is further provided with a mounting hole penetrating the piston and the pressure plate, and the mounting hole is fitted with a through-hole through interference fit. An air pipe, one end of the air pipe extends into the line pipe, and the other end is connected with a high-pressure gas supply device. 5 . The device for threading a pre-embedded wire pipe in a wall according to claim 4 , wherein the guide wire is formed by detachably and fixedly connecting several sections of the guide wire. 6 . 6 . The device for threading a pre-embedded wire pipe in a wall according to claim 5 , wherein the guide wire segment comprises a guide wire body, a stud fixed on the front end of the guide wire body, and a stud fixedly connected to the guide wire body. 7 . The sleeve at the rear end of the guide wire body, the inner surface of the sleeve is provided with internal threads, and the adjacent guide wire segments are screwed with the stud through the sleeve. 7 . The device for threading a pre-embedded line pipe in a wall according to claim 6 , wherein the stud and the sleeve are made of high-strength steel material. 8 . 8 . The threading device of a pre-embedded pipe in a wall according to claim 7 , wherein the rear end of the base of the guide head is fixedly connected with a connecting rod, and the front end of the spring is connected with a connecting lug, 9 . The connecting rod and the connecting lug are rotatably connected through a thrust bearing.

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