Air threading device

Abstract

The utility model relates to the field of threading devices, in particular to an air threading device which comprises an air dust blowing gun and an air pressure assembly. One end of an air dust blowing gun is communicated with an air pressure assembly used for providing strong air pressure to blow a wire harness, the air pressure assembly comprises an air compressor, one side of the air compressor is symmetrically communicated with an air inlet pipe and an exhaust pipe, one end of the air inlet pipe is provided with an air inlet filter box, and the top end of the air inlet filter box is linearly provided with two filter plates; according to the Bernoulli principle, a low-pressure area is formed in the air suction gun through an air compressor, and the nylon rope is sucked under the action of the pressure difference between the external atmospheric pressure and the low-pressure area and enters the line pipe along with airflow; in the air threading process, the contact part between the wire harness and the interior of the threading device is relatively smooth and has no severe friction, so that the damage to an external protective layer of the cable in the threading process is greatly reduced, the integrity of the cable is effectively maintained, and the service life of the cable is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a threading device field especially relates to an air threading device. BACKGROUND

[0002] An air threading device is a device that uses compressed air as a power source to push a wire harness through a conduit by a specific mechanical structure and aerodynamic principle, which is based on Bernoulli's principle. When compressed air passes through an air suction gun, the air flow speed in the air suction gun increases, and the increased flow speed leads to a decrease in pressure, forming a low-pressure area near the muzzle. The nylon rope is sucked in under the pressure difference between the external atmospheric pressure and this low-pressure area and enters the conduit with the airflow.

[0003] The existing construction site mostly uses steel wire traction threading, and the steel wire is in contact with the cable for a long time and moves relatively during the threading process. This hard contact and friction may affect the outer protective layer of the cable to some extent, causing minor scratches, wear, or local deformation. Although these damages may appear relatively minor in the initial stage and have little impact on the short-term performance of the cable, from the perspective of long-term stability and reliability, the overall mechanical strength and insulation performance of the cable will decrease over time and under the influence of complex environmental factors, bringing uncertainty and risk to the long-term stable operation of related engineering systems.

[0004] Therefore, to overcome the problem that the existing construction site mostly uses steel wire traction threading, and the steel wire is in contact with the cable, although it has little impact on the short-term performance of the cable initially, but in the long run, the outer protective layer of the cable will be damaged, causing scratches, wear, deformation, and reducing the mechanical strength and insulation performance, an air threading device can be designed to use Bernoulli's principle to form a low-pressure area in the air suction gun using an air compressor, so that the nylon rope is sucked in under the pressure difference between the external atmospheric pressure and this low-pressure area and enters the conduit with the airflow. SUMMARY

[0005] To overcome the problem that the existing construction site mostly uses steel wire traction threading, and the steel wire is in contact with the cable, although it has little impact on the short-term performance of the cable initially, but in the long run, the outer protective layer of the cable will be damaged, causing scratches, wear, deformation, and reducing the mechanical strength and insulation performance.

[0006] The utility model discloses a technical scheme for an air threading device, comprising an air blowing dust gun and a gas pressure assembly.

[0007] Preferably, the air compressor starts to operate, and it sucks air from the external environment through the air inlet pipe. Before the air enters the air compressor, it first passes through the air inlet filter box. The two sets of filter plates linearly installed at the top end of the air inlet filter box filter impurities such as dust and particulate matter in the air. The air compressed by the air compressor has its pressure increased, and then it is output through the air outlet pipe. When the air pressure in the air outlet pipe exceeds the safety threshold set by the safety valve, the safety valve will automatically open to release pressure. The air with strong air pressure output from the air outlet pipe enters the air blowing dust gun connected thereto. When the air blowing dust gun is aimed at the pipe that needs to be threaded, the air with strong air pressure acts on the wire harness, causing the wire harness to move forward along the pipe under the push of the air pressure.

[0008] Preferably, the air compressor is connected to an air outlet pipe on the side away from the air inlet pipe and the air outlet pipe. A gas pressure gauge is installed at the top end of the air outlet pipe. A plurality of first support columns are linearly installed at the bottom end of the air compressor. A first support plate is installed at the bottom end of the first support columns.

[0009] Preferably, a first mounting table is installed at the top end of the air compressor. A power motor is installed at the top end of the first mounting table. A second mounting table is installed on one side of the first mounting table.

[0010] Preferably, a wire harness rotating shaft and a second support column are linearly installed at the bottom end of the second mounting table. A second support plate is installed at the bottom end of the second support column. A control console is installed at the outer top end corner of the second support column.

[0011] Preferably, a handle is installed at the top end of the air blowing dust gun. A handle is installed at the bottom end of the air blowing dust gun. A hand rest is installed at the bottom end of the air blowing dust gun away from the handle.

[0012] Preferably, a wrench is installed at the bottom end of the handle of the air blowing dust gun. An air duct pipe is formed through one end of the air blowing dust gun. A threading pipe is connected to one side of the air blowing dust gun.

[0013] Preferably, a pipe plug is installed at one end of the threading pipe. A connecting pipe is connected to one end of the air blowing dust gun. A first sealing sleeve is sleeved on the outside of the connecting pipe. A guide pipe is connected to the other end of the air blowing dust gun. A second sealing sleeve is sleeved on the outside of the guide pipe.

[0014] The beneficial effects of this invention are as follows: When using steel wire traction for threading, the steel wire and cable make direct, rigid contact and generate relative movement. Prolonged operation can easily cause scratches, wear, or localized deformation of the cable's outer protective layer. However, the air threading device uses compressed air to propel the cable bundle, resulting in a smoother contact between the bundle and the device's internal parts without severe friction. This significantly reduces the risk of damage to the cable's outer protective layer during threading, effectively maintaining the cable's integrity and ensuring its mechanical strength and insulation performance remain undamaged. This extends the cable's service life and improves the long-term stability and reliability of the entire electrical or communication system. Furthermore, in environments such as construction sites, steel wire traction threading inevitably introduces dust, particulate matter, and other impurities into the conduit and adheres to the cable surface, increasing the friction coefficient between the cable and the conduit. This not only affects the smoothness of threading but may also further exacerbate cable wear. The air threading device purifies the air through an air compressor intake filter box and filter plate, preventing impurities from entering the threading system and reducing the probability of cable damage caused by impurities, thus creating a cleaner threading environment for the cable. Attached Figure Description

[0015] Fig. 1 The diagram shown is a schematic representation of the overall structure of an air threading device according to this utility model.

[0016] Fig. 2 The diagram shown is a schematic representation of the pneumatic component structure of an air threading device according to this utility model.

[0017] Fig. 3 The diagram shown is an explosive structure diagram of the pneumatic component of an air threading device according to this utility model;

[0018] Fig. 4 The diagram shown is a schematic diagram of the explosive structure of an air blower in an air threading device according to this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Air blower; 101. Handle; 102. Lifting handle; 103. Wrench; 104. Hand rest; 105. Air duct; 106. Connecting pipe; 107. Primary sealing sleeve; 108. Conduit; 109. Secondary sealing sleeve; 110. Conduit; 111. Conduit plug; 201. Air compressor; 202. Pressure gauge; 203. Primary support column; 204. Primary support plate; 205. Primary mounting platform; 206. Secondary mounting platform; 207. Secondary support column; 208. Secondary support plate; 209. Control console; 210. Wiring harness spool; 211. Inlet pipe; 212. Inlet filter box; 213. Filter plate; 214. Safety valve; 215. Power motor; 216. Exhaust pipe. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Referring to Figs. 1-4 The utility model provides an embodiment: an air threading device, including air blowing dust gun 1 and gas pressure assembly, air blowing dust gun 1 one end has the gas pressure assembly for providing strong power pressure blowing wire harness, and the gas pressure assembly includes air compressor 201, and air compressor 201 one side symmetry has the air inlet pipe 211 with exhaust pipe 216, and air inlet pipe 211 one end is installed with air inlet filter box 212, and air inlet filter box 212 top linear installation has two sets of filter plate 213, and exhaust pipe 216 one end is installed with safety valve 214, and air compressor 201 starts operation, and it inhales air from outside environment through air inlet pipe 211, and before air enters air compressor 201, first passes through air inlet filter box 212, and the two sets of filter plate 213 linear installation on the top of air inlet filter box 212 filter the impurities such as dust, particulate matter etc. in air, and after the compression of air compressor 201, the pressure is promoted, then is exported through exhaust pipe 216, when the gas pressure in exhaust pipe 216 exceeds the safety threshold value set for safety valve 214, safety valve 214 will automatically open and release pressure, and the air with strong power pressure exported from exhaust pipe 216 enters the air blowing dust gun 1 communicated therewith, when air blowing dust gun 1 aims at the wire pipe needing threading, the air with strong power pressure acts on wire harness, and wire harness moves forward along wire pipe under the impetus of gas pressure.

[0022] Referring to Figs. 1-3 In the embodiment, the air compressor 201 is communicated with the air outlet pipe on the side away from the air inlet pipe 211 and the exhaust pipe 216, the air pressure gauge 202 is installed at the top of the air outlet pipe, a plurality of first support columns 203 are linearly installed at the bottom of the air compressor 201, the first support plate 204 is installed at the bottom of the first support column 203, the air pressure gauge 202 can accurately display the air pressure value in the air outlet pipe of the air compressor 201, and the operator can intuitively understand the size of the compressed air pressure generated by the air compressor 201 according to the reading of the air pressure gauge 202, so as to judge whether the air pressure required for the air blowing dust gun 1 to perform the threading operation is met, the first mounting table 205 is installed at the top of the air compressor 201, the power motor 215 is installed at the top of the first mounting table 205, the second mounting table 206 is installed on one side of the first mounting table 205, and the first mounting table 205 provides a stable mounting plane for the power motor 215, which can uniformly disperse the weight of the power motor 215, prevent local uneven stress caused by directly mounting the motor on the shell of the air compressor 201, and further avoid deformation or damage of the shell of the air compressor 201, so as to protect the integrity and stability of the overall structure of the air compressor 201.

[0023] Referring to Figs. 2-3In this embodiment, the wire harness rotating shaft 210 is linearly installed at the bottom end of the secondary installation table 206 with the secondary support column 207, the secondary support plate 208 is installed at the bottom end of the secondary support column 207, the control console 209 is installed at the outer top corner of the secondary support column 207, the wire harness rotating shaft 210 provides a centralized storage and orderly guiding function for the wire harness during threading, and the wire harness can be pre-wound on the wire harness rotating shaft 210 before air threading operation, which can effectively avoid messy winding and mutual entanglement of the wire harness, so that the wire harness can be smoothly released from the rotating shaft and enter the action area of the air dust gun 1 during threading, reducing the threading jam or failure caused by messy wire harness, improving the efficiency and smoothness of the threading operation, the air dust gun 1 is provided with a handle 101 at the bottom end, and a hand rest 104 is installed on one side of the air dust gun 1 away from the handle 101, the handle 102 provides a convenient carrying point for the air dust gun 1, when the air threading device needs to be moved or the air dust gun 1 needs to be transferred between different operation areas, the operator can easily hold the handle 102 and carry it.

[0024] Please refer to Figs. 1-4 In this embodiment, the air dust gun 1 is provided with a wrench 103 at the bottom end of the handle 101, the air dust gun 1 is provided with an air duct 105 at one end, and the air dust gun 1 is provided with a threading pipe 110 on one side, the air duct 105 serves as a transmission path for compressed air from the air compressor 201 to the inside of the air dust gun 1, and its design directly affects the delivery efficiency and stability of the compressed air, the air duct 105 usually has a suitable inner diameter and smoothness of inner wall to ensure that the compressed air can pass through the working area of the air dust gun 1 quickly with minimum resistance, the wire pipe plug 111 is installed at one end of the threading pipe 110, the air dust gun 1 is provided with a connecting pipe 106 at one end, the connecting pipe 106 is provided with a primary sealing sleeve 107 outside, the air dust gun 1 is provided with a guide pipe 108 at the other end, the guide pipe 108 is provided with a secondary sealing sleeve 109 outside, the wire pipe plug 111 is installed at one end of the threading pipe 110, which can effectively block dust, debris and other foreign matters from entering the threading pipe 110 and the wire pipe system connected thereto during non-threading operation, the guide pipe 108 provides a directional flow channel for the compressed air in the air dust gun 1, so that it can flow to the threading pipe 110 according to the designed path and act on the wire harness.

[0025] In the process of working, when the air threading device is working, first, the power motor 215 starts to drive the air compressor 201 to start running. The external air enters the air compressor 201 through the air inlet pipe 211. Before this, the air needs to pass through the air inlet filter box 212 first. The two sets of filter plates 213 at the top of the air inlet filter box 212 can effectively filter the dust, impurities and the like in the air to prevent them from entering the interior of the air compressor 201 and causing damage to the equipment, ensuring the cleanliness of the compressed air. The air compressed by the air compressor 201 has its pressure increased and then output through the air outlet pipe. The safety valve 214 installed at one end of the exhaust pipe 216 monitors the air pressure at all times. Once the air pressure exceeds the set safety threshold, the safety valve 214 will automatically open to release pressure, ensuring the safe operation of the entire device. The air outlet pipe, which is in communication with the side of the air compressor 201 away from the air inlet pipe 211 and the exhaust pipe 216, transmits the air. The air pressure gauge 202 at the top of the air outlet pipe displays the current air pressure value in real time. The operator can accurately understand the pressure of the compressed air and make corresponding adjustments according to the actual threading requirements. The compressed air enters the air blowing dust gun 1 through the connecting pipe 106. The first level sealing sleeve 107 outside the connecting pipe 106 ensures that the air does not leak during transmission, ensuring the stability of the air pressure. After the air enters the air blowing dust gun 1, it will flow along the airway pipe 105. Under the directional guidance of the guide pipe 108, the compressed air flows to the threading pipe 110 along the predetermined path. The second level sealing sleeve 109 outside the guide pipe 108 also plays a role in preventing air leakage and protecting the internal structure. The operator holds the handle 101 at the bottom of the air blowing dust gun 1 and places his hand on the handle 101 and the hand rest 104. With the help of the top handle 102, the operator can stably control the air blowing dust gun 1 and aim its muzzle at the line pipe inlet that needs to be threaded. Before threading, the operator removes the line pipe plug 111 from one end of the threading pipe 110 and places the prepared wire harness at the inlet of the threading pipe 110. When the compressed air acts on the wire harness through the threading pipe 110, the wire harness moves forward along the line pipe under the strong air pressure, thereby achieving the purpose of threading. During the entire threading process, the wire harness shaft 210 at the bottom of the second installation table 206 can orderly store and guide the unused wire harness, enabling it to smoothly enter the threading pipe 110 of the air blowing dust gun 1. At the same time, the control console 209 can centrally control and monitor the operating parameters of the air compressor 201. The operator can operate the start, stop and pressure adjustment of the air compressor 201 on the control console 209 according to the actual situation, ensuring that the entire air threading device operates efficiently and stably to successfully complete the threading task.

[0026] Through the above steps, the air compressor 201 starts to operate, which inhales air from the outside environment through the air inlet pipe 211, and the air passes through the air inlet filter box 212 before entering the air compressor 201. The two sets of filter plates 213 linearly installed at the top of the air inlet filter box 212 filter impurities such as dust and particulate matter in the air. The air compressed by the air compressor 201 has its pressure increased, and then is output through the exhaust pipe 216. When the air pressure in the exhaust pipe 216 exceeds the safety threshold set by the safety valve 214, the safety valve 214 will automatically open to release pressure. The air with strong air pressure output from the exhaust pipe 216 enters the air dust gun 1 connected thereto. When the air dust gun 1 is aimed at the wire pipe that needs to be threaded, the air with strong air pressure acts on the wire harness, so that the wire harness moves forward along the wire pipe under the push of the air pressure.

Claims

1. An air threading device comprising an air duster (1); characterized in that: It also includes air pressure components; one end of the air blowing gun (1) is communicated with the air pressure component for providing strong air pressure blowing wire harness, the air pressure component includes an air compressor (201), one side of the air compressor (201) is symmetrically communicated with an air inlet pipe (211) and an exhaust pipe (216), one end of the air inlet pipe (211) is provided with an air inlet filter box (212), two groups of filter plates (213) are linearly installed at the top end of the air inlet filter box (212), and a safety valve (214) is installed at one end of the exhaust pipe (216).

2. An air threading device according to claim 1, wherein: The side of the air compressor (201) away from the air inlet pipe (211) and the exhaust pipe (216) is communicated with an air outlet pipe, the air outlet pipe is provided with an air pressure gauge (202) at the top end, a plurality of first support columns (203) are linearly installed at the bottom end of the air compressor (201), and a first support plate (204) is installed at the bottom end of the first support column (203).

3. An air threading device according to claim 1, wherein: The top end of the air compressor (201) is provided with a first mounting table (205), the first mounting table (205) is provided with a power motor (215) at the top end, and a second mounting table (206) is installed on one side of the first mounting table (205).

4. An air threading device according to claim 3, wherein: The bottom end of the second mounting table (206) is linearly provided with a wire harness rotating shaft (210) and a second support column (207), the second support column (207) is provided with a second support plate (208) at the bottom end, and a control console (209) is installed at the outer top corner of the second support column (207).

5. An air threading device according to claim 1, wherein: The top end of the air blowing gun (1) is provided with a handle (102), the bottom end of the air blowing gun (1) is provided with a handle (101), and a hand rest (104) is installed on one side of the bottom end of the air blowing gun (1) away from the handle (101).

6. An air threading device according to claim 5, wherein: A wrench (103) is installed at the bottom end of the air blowing gun (1) in front of the handle (101), an air duct (105) is formed through one end of the air blowing gun (1), and a wire pipe (110) is communicated on one side of the air blowing gun (1).

7. An air threading device according to claim 6, wherein: A wire pipe plug (111) is installed at one end of the wire pipe (110), a connecting pipe (106) is communicated at one end of the air blowing gun (1), a first sealing sleeve (107) is sleeved outside the connecting pipe (106), a guide pipe (108) is communicated at the other end of the air blowing gun (1), and a second sealing sleeve (109) is sleeved outside the guide pipe (108).

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