Blowing-in type lead wire placing gun

Abstract

This application relates to the field of lead placement, and discloses a blow-in type lead placement gun, which includes a first barrel and a second barrel. A first cavity penetrating the first barrel is provided inside the first barrel, and a second cavity penetrating the second barrel is provided inside the second barrel. The second barrel is docked on the side wall of the first barrel, and the second cavity is communicated with the first cavity. One end of the first barrel is provided with a closed joint, and a wire hole for the lead to pass through is opened on the closed joint. This application has the following effects: 1. The lead placement speed is fast, and the pipeline can be quickly switched, greatly increasing the construction flexibility; 2. The connection with the pipeline has high sealing performance, fully ensuring the thrust on the traction head, and the construction stability is high.

Description

Technical Field

[0001] The present application relates to the field of lead laying, and in particular to a blowing type lead laying gun. Background Art

[0002] At present, during the lead construction process, it is usually necessary to put the lead into the pipeline. At this time, a rod threading device is generally used for short distances to put the lead into the pre-buried pipeline. However, if the pipeline is long, a blowing cable process is generally used, that is, the optical cable is blown into the pre-buried pipeline by means of high-pressure air blowing.

[0003] Chinese Patent Publication No. CN210488083U discloses a lead blowing device, which includes a tank body, an air inlet pipe communicated with the tank body, and a lead laying mechanism arranged in the tank body. The tank body is provided with an outlet end communicated with the pipeline; the lead laying mechanism: includes two support plates arranged in the tank body and a mounting shaft rotatably connected to the two support plates. A laying disc for laying the lead is sleeved on the mounting shaft.

[0004] In view of the above related technologies, the inventor believes that there are defects in that the lead blowing device is large in size and difficult to construct quickly and portably. Summary of the Invention

[0005] In order to facilitate the operator to quickly and portably lay the lead, the present application provides a blowing type lead laying gun.

[0006] A blowing type lead laying gun provided by the present application is obtained by the following technical solutions: A blowing type lead laying gun includes a first gun barrel and a second gun barrel. A first cavity penetrating the first gun barrel is arranged inside the first gun barrel. A second cavity penetrating the second gun barrel is arranged inside the second gun barrel. The second gun barrel is butted on the side wall of the first gun barrel, and the second cavity is communicated with the first cavity. One end of the first gun barrel is provided with a closed joint, and a wire hole for the lead to pass through is opened on the closed joint.

[0007] Through the above technical solutions, when it is necessary to lay the lead, the operator passes the lead through the wire hole, passes out from the other end of the first gun barrel, then connects the lead with the towing head, puts the towing head into the pipeline, and inserts the end of the first gun barrel far from the closed joint into the pipeline. At this time, high-pressure gas is introduced into the end of the second gun barrel far from the first gun barrel. The high-pressure gas enters the pipeline after passing through the second cavity and the first cavity, so as to quickly push the towing head to move in the pipeline.

[0008] Preferably: The end of the first gun barrel far from the closed joint is hermetically connected to the pipeline through a sealing member.

[0009] Through the above technical solution, the seal closes the end of the first barrel and the pipeline, which can reduce the possibility of air leakage from the connection between the pipeline and the first barrel, thereby ensuring the air pressure in the pipeline and pushing the towing head more powerfully.

[0010] Preferably, the seal includes a sealing rubber strip, and the sealing rubber strip is wound around the outer edge of the first barrel.

[0011] Through the above technical solution, when the operator docks the first barrel with the pipeline, the sealing rubber strip fills the space between the outer edge of the first barrel and the inner wall of the pipeline, thereby reducing the gap between the pipeline and the first barrel and improving the sealing performance between the pipeline and the first barrel.

[0012] Preferably, the seal includes an elastic rubber ring and a barrier ring. Both the elastic rubber ring and the barrier ring are connected to the outer edge of the first barrel, and the barrier ring is located on the side of the elastic rubber ring away from the sealing joint. A plurality of communication holes are provided on the first barrel, and an expansion cavity is provided inside the elastic rubber ring. The first cavity is connected to the expansion cavity through the communication holes.

[0013] Through the above technical solution, after the operator inserts the first barrel into the pipeline, the high-pressure air flow passes through the first cavity. At this time, the high-pressure air flow also enters the expansion cavity through the communication holes, causing the elastic rubber ring to expand and abut against the inner wall of the pipeline to form a seal. When the first barrel has a tendency to move backward under the reaction force during the high-pressure air flow injection, the barrier ring abuts against the elastic rubber ring, causing the elastic rubber ring to abut against the inner wall of the pipeline over a larger area instead of bending towards the inside of the pipeline. This further increases the friction between the first barrel and the inner wall of the pipeline, reduces the possibility of the first barrel moving out of the pipeline, and improves the connection stability between the first barrel and the pipeline during operation; this sealing structure flexibly utilizes the existing high-pressure air flow to form a good sealing effect, and the first barrel is not easily detached from the pipeline during operation.

[0014] Preferably, a clamping rod is hinged on the outer wall of the first barrel. One end of the clamping rod is connected with a claw, and the other end is hinged with a pressing rod; when the pressing rod abuts against the outer wall of the first barrel, the claw abuts against the outer wall of the pipeline.

[0015] Through the above technical solution, after the first barrel is inserted into the pipeline, the operator rotates the clamping rod so that the claw presses tightly against the outer wall of the pipeline, and then rotates the pressing rod so that the pressing rod abuts tightly against the outer wall of the first barrel, thereby enabling the claw to firmly grip the outer wall of the pipeline and improving the connection stability between the first barrel and the pipeline.

[0016] Preferably, the first barrel includes a fixed part and a replaceable part. The fixed part is connected to the second barrel, and the replaceable part is detachably connected to the fixed part.

[0017] Through the above technical solution, the operator can replace the replacement part of different sizes connected to the fixed part to adapt to pipes of different calibers, thereby improving the application range of the blow-in type lead wire laying gun.

[0018] Preferably: A locking rod is hinged to the outer edge of the fixed part, a through hole is provided on the fixed part, a cam is provided on the locking rod and passes through the through hole and extends into the first cavity, the outer edge of the replacement part fits against the inner edge of the fixed part, an arc-shaped card slot is provided on the outer edge of the replacement part, and the cam presses against the groove wall of the arc-shaped card slot.

[0019] Through the above technical solution, after the replacement part is inserted into the fixed part, the operator rotates the locking rod so that the cam presses against the groove wall of the arc-shaped card slot, thereby quickly locking the replacement part on the fixed part to form the first gun barrel.

[0020] Preferably: A sealing ring is provided inside the first gun barrel, the closed joint abuts against the sealing ring, and the lead wire sequentially passes through the wire hole and the sealing ring.

[0021] Through the above technical solution, the sealing ring can further improve the sealing performance at the end of the first gun barrel away from the pipe, and further guide the lead wire.

[0022] Preferably: The closed joint is threadedly connected to the first gun barrel.

[0023] Through the above technical solution, when it is necessary to insert the lead wire into the first gun barrel, the operator can unscrew the closed joint and then perform the threading operation, which improves the operation space, makes the threading action more convenient, and at the same time, when the closed joint ages, it can be quickly replaced.

[0024] Preferably: A bearing is embedded at the end of the closed joint away from the first gun barrel, and the inner hole of the bearing is communicated with the wire hole.

[0025] Through the above technical solution, when the lead wire moves, it will vibrate and rotate. At this time, the bearing with rotational performance and a smooth surface can follow the movement, greatly reducing the possibility of lead wire wear.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The lead wire laying speed is fast, and the pipe can be quickly switched, greatly increasing the construction flexibility;

[0028] 2. The connection with the pipe has high sealing performance, fully ensuring the thrust on the traction head, and high construction stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the present application.

[0030] Figure 2 It is a schematic structural diagram of the interior of the first barrel in the first embodiment of the present application.

[0031] Figure 3 It is a schematic structural diagram of the replacement part and the fixing part in the first embodiment of the present application.

[0032] Figure 4 is Figure 3 A partial enlarged view of part A in

[0033] Figure 5 It is a schematic structural diagram of the elastic rubber ring in the second embodiment of the present application.

[0034] Figure 6 is Figure 5 A partial enlarged view of part B in

[0035] Reference numerals: 1, first barrel; 11, first cavity; 12, fixing part; 121, locking rod; 122, through hole; 123, cam; 13, replacement part; 131, arc-shaped clamping groove; 2, second barrel; 21, second cavity; 3, closing joint; 31, wire hole; 32, bearing; 4, closing member; 41, closing rubber strip; 42, elastic rubber ring; 43, barrier ring; 44, expansion cavity; 45, communication hole; 5, clamping rod; 51, clamping claw; 52, pressing rod; 6, sealing ring; 7, three-way valve; 8, air pump; 81, winding wheel; 82, traction head; 9, lead wire; 10, pipeline. Detailed implementation manners

[0036] The following further elaborates on the present application in conjunction with the attached Figures 1-5 drawings.

[0037] Embodiment 1:

[0038] Referring to Figure 1 and Figure 2 , a blowing-in type lead wire laying gun disclosed in this embodiment includes a first barrel 1 and a second barrel 2. The second barrel 2 is butted at a 45° angle and welded to the side wall of the first barrel 1. A first cavity 11 penetrating the first barrel 1 is provided inside the first barrel 1, and a second cavity 21 penetrating the second barrel 2 is provided inside the second barrel 2. The second cavity 21 communicates with the first cavity 11. The cross-sections of the first cavity 11 and the second cavity 21 are both circular to facilitate the high-speed passage of air flow. One end of the first barrel 1 is provided with a closing joint 3 for closing one end of the first cavity 11. A wire hole 31 for the lead wire 9 to pass through is opened on the closing joint 3. The lead wire 9 passes through the wire hole 31 and exits from the other end of the first barrel 1. Then the operator connects the lead wire 9 to the traction head 82. The air source is connected to the end of the second barrel 2 away from the first barrel 1, and the air flow passes through the second cavity 21 and the first cavity 11 in sequence and then blows out.

[0039] Referring toFigure 2 , a sealing ring 6 is fixedly arranged inside the first gun barrel 1. The sealing ring 6 is in a circular ring shape. The closing joint 3 is threadedly connected to the first gun barrel 1, and the closing joint 3 abuts against the sealing ring 6. A bearing 32 is embedded at one end of the closing joint 3 away from the sealing ring 6. The inner hole of the bearing 32 is coaxially arranged and communicated with the wire hole 31. The lead wire 9 can sequentially pass through the inner hole of the bearing 32, the wire hole 31, and the sealing ring 6, and then be led out from one end of the first gun barrel 1 away from the closing joint 3. When the lead wire 9 moves, since the surface of the bearing 32 is smooth and can rotate, it can rotate along with the jitter of the lead wire 9, thereby reducing the possibility of the lead wire 9 being worn, ensuring the firmness of the lead wire 9, and improving the laying stability of the lead wire 9.

[0040] Refer to Figure 3 and Figure 4 , the first gun barrel 1 includes a fixed part 12 and a replacement part 13. The fixed part 12 is connected to the second gun barrel 2, and the closing joint 3 is connected to the fixed part 12. The replacement part 13 is located at one end of the fixed part 12 away from the closing joint 3. Two locking rods 121 are symmetrically hinged to the outer edge of the fixed part 12. A cam 123 is integrally formed at one end of the locking rod 121. A through hole 122 communicating with the first cavity 11 is opened at the corresponding position of the fixed part 12 for the cam 123. The outer edge of the replacement part 13 fits with the inner edge of the fixed part 12, and an arc-shaped card slot 131 is opened on the outer edge of the replacement part 13. When assembling the first gun barrel 1, the operator inserts the replacement part 13 into the fixed part 12, and then rotates the two locking rods 121 downward so that the two cams 123 are clamped in the arc-shaped card slot 131, thereby quickly and conveniently locking the replacement part 13 and the fixed part 12. When it is necessary to disassemble and replace the replacement part 13, the operator rotates the locking rod 121 upward so that the cam 123 is separated from the arc-shaped card slot 131. The outer diameter of one end of the replacement part 13 away from the fixed part 12 matches the inner diameter of the pipeline 10, and the replacement part 13 can be equipped with multiple different sizes to facilitate adapting to pipelines 10 with different calibers.

[0041] Refer to Figure 1 and Figure 3 , one end of the first gun barrel 1 away from the closing joint 3 is hermetically connected to the pipeline 10 through a sealing member 4. The sealing member 4 includes a sealing rubber strip 41. The sealing rubber strip 41 is wound around and bonded to the outer edge of the replacement part 13, and two sealing rubber strips 41 are arranged along the length direction of the replacement part 13. When the operator inserts the first gun barrel 1 into the pipeline 10, the sealing rubber strip 41 fills the gap between the first gun barrel 1 and the inner wall of the pipeline 10, thereby ensuring the connection tightness between the first gun barrel 1 and the pipeline 10, so that the air flow can quickly and efficiently drive the traction head 82 to move in the pipeline 10.

[0042] Refer to Figure 3 and Figure 4, a clamping rod 5 is hinged on the outer wall of the fixing part 12. A clamping claw 51 is integrally formed at one end of the clamping rod 5 away from the closing joint 3, and a pressing rod 52 is hinged at the other end. The pressing rod 52 is rectangular and one side thereof abuts against the outer wall of the fixing part 12 to improve the stability when abutting against the fixing part 12. After the replacement part 13 of the first gun barrel 1 is inserted into the pipeline 10, the operator rotates the clamping rod 5 so that the clamping claw 51 abuts against the recess on the outer wall of the pipeline 10, and then rotates the pressing rod 52 so that the pressing rod 52 abuts tightly against the outer wall of the fixing part 12 to support and fix the clamping rod 5, improve the clamping stability of the clamping claw 51, and further ensure the connection stability between the first gun barrel 1 and the pipeline 10.

[0043] Working principle: First, the operator selects a replacement part 13 with a size adapted to the caliber of the pipeline 10 to be constructed according to the caliber of the pipeline 10 to be constructed, then docks the replacement part 13 with the fixing part 12 and locks it through the locking rod 121. Then, the lead wire 9 is sequentially passed through the bearing 32, the wire hole 31, and the first cavity 11 and then connected to the towing head 82. Then, the towing head 82 is first placed into the pipeline 10, the replacement part 13 is inserted into the pipeline 10, and the clamping rod 5 is rotated so that the clamping claw 51 is clamped on the outer wall of the pipeline 10, and the pressing rod 52 is rotated to fix the clamping rod 5.

[0044] When laying the lead wire 9, the operator directly holds the second gun barrel 2 by hand, and then blows high-pressure air into the second cavity 21. The high-pressure air passes through the second cavity 21 and the first cavity 11 in sequence and then is injected into the pipeline 10 to drive the towing head 82 to quickly move towards the inside of the pipeline 10, so as to quickly and easily complete the operation of laying the lead wire 9.

[0045] Embodiment 2:

[0046] Referring to Figure 5 and Figure 6 , a blowing-in type lead wire laying gun disclosed in this embodiment is different from that in Embodiment 1 in that the closing member 4 includes an elastic rubber ring 42 and a barrier ring 43. The elastic rubber ring 42 is made of rubber, the elastic rubber ring 42 is sleeved and fixedly connected to the outer edge of the replacement part 13 of the first gun barrel 1, an expansion cavity 44 is formed in the elastic rubber ring 42, and a plurality of communication holes 45 are formed at equal intervals along the circumference of the replacement part 13 of the first gun barrel 1 to facilitate the uniform injection of air flow into the expansion cavity 44 when ventilating. The barrier ring 43 is located on the side of the elastic rubber ring 42 away from the closing joint 3, and the barrier ring 43 is also sleeved and fixedly connected to the circumference of the replacement part 13.

[0047] Working principle: the operator inserts the replacement part 13 of the first gun barrel 1 into the pipe 10, at which time the outer edge of the elastic rubber ring 42 contacts the inner wall of the pipe 10, thereby playing a preliminary sealing role, and then a high-pressure airflow is introduced into the second gun barrel 2. When the gas passes through the first gun barrel 1, part of the airflow is blown into the expansion chamber 44 under the action of the air pressure. At this time, the elastic rubber ring 42 expands and contacts the inner wall of the pipe 10 with a larger area and a greater resistance force, thereby increasing the friction between the first gun barrel 1 and the inner wall of the pipe 10, so as to enhance the sealing between the first gun barrel 1 and the inner wall of the pipe 10.

[0048] When the first gun barrel 1 tends to be separated from the pipe 10, the blocking ring 43 contacts the side wall of the elastic rubber ring 42, making it difficult for the elastic rubber ring 42 to bend toward the inside of the pipe 10, thereby ensuring the friction between the first gun barrel 1 and the inner wall of the pipe 10, reducing the possibility of the first gun barrel 1 moving out of the pipe 10, and improving the connection stability between the first gun barrel 1 and the pipe 10 during operation; the sealing structure flexibly applies the existing high-pressure airflow to form a good sealing effect, so that the first gun barrel 1 is not easy to be separated from the pipe 10 during operation.

[0049] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. An injection-type lead wire laying gun, characterized in that: The invention comprises a first gun barrel (1) and a second gun barrel (2), wherein the first gun barrel (1) is provided with a first cavity (11) penetrating the first gun barrel (1), and the second gun barrel (2) is provided with a second cavity (21) penetrating the second gun barrel (2), the second gun barrel (2) is butt-jointed to the side wall of the first gun barrel (1), and the second cavity (21) is communicated with the first cavity (11), and a closed joint (3) is provided at one end of the first gun barrel (1), and a wire hole (31) is provided on the closed joint (3) for a lead wire (9) to pass through; One end of the first gun barrel (1) away from the closed joint (3) is sealedly connected to the pipe (10) via a closing member (4); A clamping rod (5) is hingedly connected to the outer wall of the first gun barrel (1), one end of the clamping rod (5) is connected to a clamping claw (51), and the other end is hingedly connected to a pressure rod (52); When the pressure rod (52) contacts the outer wall of the first gun barrel (1), the clamping claw (51) contacts the outer wall of the pipe (10); The closing member (4) comprises an elastic rubber ring (42) and a barrier ring (43), wherein the elastic rubber ring (42) and the barrier ring (43) are both connected to the outer edge of the first gun barrel (1), and the barrier ring (43) is located on the side of the elastic rubber ring (42) away from the closing joint (3), the first gun barrel (1) is provided with a plurality of connecting holes (45), an expansion cavity (44) is provided in the elastic rubber ring (42), and the first cavity (11) is connected to the expansion cavity (44) through the connecting holes (45).

2. The injection-type lead wire laying gun according to claim 1, characterized in that: The sealing member (4) comprises a sealing rubber strip (41), and the sealing rubber strip (41) is wound around the outer edge of the first gun barrel (1).

3. The injection-type lead wire laying gun according to claim 1, characterized in that: The first gun barrel (1) comprises a fixing part (12) and a replacement part (13); the fixing part (12) is connected to the second gun barrel (2); and the replacement part (13) is detachably connected to the fixing part (12).

4. The injection-type lead wire laying gun according to claim 3, characterized in that: The outer edge of the fixed part (12) is hinged with a locking rod (121); a through hole (122) is provided on the fixed part (12); a cam (123) is provided on the locking rod (121) and passes through the through hole (122) and extends into the first cavity (11); the outer edge of the replacement part (13) is fitted with the inner edge of the fixed part (12); an arc-shaped groove (131) is provided on the outer edge of the replacement part (13); and the cam (123) is pressed against the groove wall of the arc-shaped groove (131).

5. The injection-type lead wire laying gun according to claim 1, characterized in that: A sealing ring (6) is provided inside the first gun barrel (1), the closed joint (3) is in contact with the sealing ring (6), and the lead wire (9) passes through the wire hole (31) and the sealing ring (6) in sequence.

6. The injection-type lead wire laying gun according to claim 5, characterized in that: The closed joint (3) is threadedly connected to the first gun barrel (1).

7. The injection-type lead wire laying gun according to claim 5 or 6, characterized in that: A bearing (32) is embedded in the end of the closed joint (3) away from the first gun barrel (1), and the inner hole of the bearing (32) is connected to the wire hole (31).

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