Handheld semi-automatic thread cleaning and oiling device

Abstract

The invention relates to the technical field of petroleum drilling and production machinery, in particular to a special device for cleaning and oiling threaded joints of pipe columns such as drill rods, oil pipes or casing pipes, and particularly relates to a handheld semi-automatic thread cleaning and oiling device which comprises a central shaft. The rotary sleeve is cylindrical; the rotating sleeve is connected with a liquid supply device and an oil supply device, an annular liquid supply cavity and an annular oil supply cavity are formed in the rotating sleeve, a plurality of oil spraying holes and liquid spraying holes are formed in the circumferential surface of the rotating sleeve, and the oil spraying holes and the liquid spraying holes are respectively and spirally distributed in the circumferential surface of the rotating sleeve; the oil spraying holes are communicated with the oil supply chamber, and the liquid spraying holes are communicated with the liquid supply chamber; the device integrates functions and is high in efficiency, the two procedures of thread cleaning and oiling are integrated in one tool, rapid switching can be achieved through the simple action of pressing the reversing handle, and the operation efficiency is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of oil drilling and production machinery technology, specifically to a special device for cleaning and oiling the threaded connections of drill pipes, tubing, or casing, and particularly to a handheld semi-automatic thread cleaning and oiling device. Background Technology

[0002] In petroleum engineering operations, running drill pipe and tubing is a frequent task. When running tubing, casing, or drill strings, thread lubricant needs to be applied to the threads. This serves three purposes: first, to increase lubrication and reduce thread wear; second, to prevent thread sticking; and third, to improve sealing.

[0003] However, even now, the traditional hand-held oil brush is still used on-site. The oil is poured into a bucket and then applied to the threads. This method has the following drawbacks: Uneven application: Manual brushing makes it difficult to ensure that the thread oil is evenly covered on the thread surface, affecting the lubrication and sealing effect.

[0004] Significant waste: The application process can easily lead to oil dripping from the threads and excessive use, resulting in waste.

[0005] Pollution of the environment: Wasted thread oil pollutes the work site environment.

[0006] Low efficiency: Manual painting is slow and inefficient. Summary of the Invention

[0007] In order to overcome the shortcomings of the prior art, the present invention aims to provide a handheld semi-automatic thread cleaning and oiling device that can conveniently, evenly and quickly clean and oil threads.

[0008] The present invention provides a handheld semi-automatic thread cleaning and oiling device, comprising a central shaft, on which a rotating sleeve is axially fixedly sleeved, the rotating sleeve being cylindrical; The rotating sleeve is connected to a liquid supply device and an oil supply device. The rotating sleeve is provided with an annular liquid supply chamber and an annular oil supply chamber. Multiple oil spray holes and liquid spray holes are provided on the circumference of the rotating sleeve. The oil spray holes and liquid spray holes are spirally distributed on the circumference of the rotating sleeve. The oil spray holes are all connected to the oil supply chamber, and the liquid spray holes are all connected to the liquid supply chamber. The rotating sleeve is provided with a liquid inlet at the position where it is connected to the liquid supply device, and the liquid supply device is provided with a liquid delivery hole. The rotating sleeve is provided with an oil inlet at the position where it is connected to the oil supply device, and the oil supply device is provided with an oil delivery hole. The liquid inlet and oil inlet are staggered. It also includes a drive device that drives the rotating sleeve to rotate so that the liquid inlet hole and the liquid delivery hole are connected, or the oil inlet hole and the oil delivery hole are connected, or the liquid inlet hole and the liquid delivery hole are misaligned, or the oil inlet hole and the oil delivery hole are misaligned.

[0009] Preferably, the drive device includes a reversing sleeve and a reversing handle, wherein the reversing sleeve is sleeved on the central shaft and fixedly connected to the rotating sleeve; One end of the reversing handle is sleeved on the central shaft, and the other end extends radially along the rotating sleeve. A pawl is fixedly provided on the side of the reversing handle facing the reversing sleeve. The reversing sleeve has reversing teeth evenly distributed on its circumferential surface. One side of each reversing tooth is arranged along the axial direction of the reversing sleeve, and the other side of the reversing tooth is arranged at an angle. The pawl is matched with the reversing teeth. When the pawl extends into the area between two adjacent reversing teeth, the pawl connects with the angled side of the reversing teeth and drives the rotating sleeve to rotate.

[0010] Preferably, the end of the pawl is a beak-shaped hook that curves away from the rotation direction of the rotating sleeve.

[0011] Preferably, an anti-reverse device is also provided on the end of the central shaft near the drive device.

[0012] Preferably, the anti-reverse device includes a pressure cap fixedly mounted on one end of the central shaft near the reversing sleeve. A pawl extending toward the end face of the reversing sleeve is fixedly connected to the circumferential surface of the pressure cap. The reversing sleeve has ribs of the same number as the number of reversing teeth on the end face of the pressure cap. The ribs are arranged radially along the reversing sleeve and are evenly distributed around the circumference of the reversing sleeve.

[0013] Preferably, the oil supply device is an oil delivery ring, which includes a hollow annular oil delivery sleeve and a hollow oil delivery rod. The oil delivery rod is fixedly connected to and communicates with the oil delivery sleeve. The oil delivery sleeve is sleeved on the rotating sleeve, and the oil delivery holes are evenly distributed along the circumference of the oil delivery sleeve on the side of the oil delivery sleeve facing the rotating sleeve. An oil storage device is connected to the end of the oil delivery rod away from the oil delivery sleeve.

[0014] Preferably, the liquid supply device is an infusion ring, which includes a hollow annular infusion sleeve and a hollow infusion rod. The infusion rod is fixedly connected to and communicates with the infusion sleeve. The infusion sleeve is sleeved on a rotating sleeve, and the infusion holes are evenly distributed along the circumference of the infusion sleeve on the side of the infusion sleeve facing the rotating sleeve. A liquid storage device is connected to the end of the infusion rod away from the liquid supply sleeve.

[0015] Preferably, the top of the rotating sleeve is provided with an annular boss, which is sleeved on the central shaft and fixedly connected to the rotating sleeve; The infusion sleeve and the oil sleeve are respectively movably sleeved on the boss step, the oil sleeve is located above the infusion sleeve, the inlet hole is set on the end face of the rotating sleeve facing the boss, and the infusion hole is connected to the liquid supply chamber through the inlet hole; The oil inlet is located on the boss, and the oil delivery hole is connected to the oil supply chamber through the oil inlet. The reversing sleeve is fixedly fitted onto the boss and located above the oil supply sleeve.

[0016] Preferably, an isolation sleeve is provided between the infusion sleeve and the oil infusion sleeve, and the isolation sleeve is fixedly fitted onto the boss.

[0017] Preferably, the oil delivery rod is located directly above the infusion rod, and a connecting shaft is fixedly installed between the infusion rod and the oil delivery rod; The reversing handle is located directly above the oil delivery rod, and a guide rod is fixedly installed on the side of the oil delivery rod facing the reversing handle. The guide rod is vertically installed on the end of the oil delivery rod away from the rotating sleeve. The reversing handle is provided with a guide hole at the position of the guide rod. The end of the guide rod away from the oil delivery rod passes through the guide hole and is movably connected to the reversing handle. A spring is fitted onto the guide rod between the reversing handle and the oil delivery rod, and the two ends of the spring are connected to the reversing handle and the oil delivery rod, respectively.

[0018] This invention integrates functions and is highly efficient: it combines thread cleaning and oiling processes into one tool, which can be quickly switched by simply pressing the reversing handle, significantly improving work efficiency.

[0019] This invention provides even and high-quality coating: through precisely designed oil spray holes and liquid spray holes, liquid or oil mist is directly sprayed between the thread grooves, ensuring thorough cleaning and even oil application, thereby better achieving the functions of lubrication, preventing sticking and sealing.

[0020] This invention saves oil and reduces waste: the quantitative and targeted spraying method effectively avoids oil dripping and excessive use caused by traditional brushing, thus saving costs.

[0021] This invention is green and environmentally friendly: by reducing the waste and dripping of thread thread oil, it effectively improves the work site environment and is more environmentally friendly. Attached Figure Description

[0022] Figure 1 This is an exploded view of the present invention.

[0023] Figure 2 This is a schematic diagram of the rotating sleeve structure.

[0024] Figure 3 for Figure 2 Top view.

[0025] Figure 4 for Figure 3 Sectional view of AA.

[0026] Figure 5 for Figure 3 BB section view.

[0027] Figure 6 This is a schematic diagram of the oil transport ring structure.

[0028] Figure 7 This is a schematic diagram of the reversing sleeve structure.

[0029] Figure 8 This is a schematic diagram of the reversing handle structure.

[0030] Figure 9 This is a schematic diagram of the pawl on the reversing handle.

[0031] Figure 10 This is a schematic diagram of the cap structure.

[0032] Figure 11 This is a schematic diagram showing the connection between the infusion port and the supply chamber of the present invention.

[0033] Figure 12 This is a schematic diagram showing the connection between the oil delivery hole and the oil supply chamber of the present invention.

[0034] Figure 13 This is a schematic diagram showing the connection between the pawl and the rib.

[0035] Reference numerals: 1-Pressure cap, 2-Reversing handle, 3-Reversing sleeve, 4-Spring, 5-Oil supply ring, 6-Isolation sleeve, 7-Linking shaft, 8-Infusion ring, 9-Rotating sleeve, 10-Central shaft, 11-Infusion chamber, 12-Oil supply chamber, 13-Oil spray hole, 14-Liquid spray hole, 15-Infusion hole, 16-Oil inlet hole, 17-Oil supply rod, 18-Oil supply sleeve, 19-Oil supply hole, 20-Reversing tooth, 21-Paw, 22-Pawl, 23-Rib. Detailed Implementation

[0036] The present invention will be described below with reference to the accompanying drawings.

[0037] See Figure 1-5 As shown, the present invention provides a handheld semi-automatic thread cleaning and oiling device, including a central shaft 10, on which a rotating sleeve 9 is axially fixedly sleeved. The rotating sleeve 9 is cylindrical, and its specific shape matches the shape of the part to be treated. The rotating sleeve 9 is connected to a liquid supply device and an oil supply device. The rotating sleeve 9 is provided with an annular liquid supply chamber 11 and an annular oil supply chamber 12. The rotating sleeve 9 is provided with a plurality of oil spraying holes 13 and liquid spraying holes 14 on its circumferential surface. The oil spraying holes 13 and liquid spraying holes 14 are spirally distributed on the circumferential surface of the rotating sleeve 9. The oil spraying holes 13 are all connected to the oil supply chamber 12, and the liquid spraying holes 14 are all connected to the liquid supply chamber 11. In one embodiment, the rotating sleeve 9 is configured as a conical cylinder, and the conical size of the rotating sleeve 9 matches the inner surface size of the conical thread of the drill rod nut to be operated. The liquid injection hole 14 and the oil injection hole 13 are distributed along the spiral line, and the liquid injection hole 14 and the oil injection hole 13 are precisely aligned outward with the groove between the thread teeth.

[0038] The rotating sleeve 9 is provided with a liquid inlet 15 at the position where it is connected to the liquid supply device, and the liquid supply device is provided with a liquid delivery hole. The rotating sleeve 9 is provided with an oil inlet 16 at the position where it is connected to the oil supply device, and the oil supply device is provided with an oil delivery hole 19. The liquid inlet 15 and the oil inlet 16 are staggered. It also includes a drive device that drives the rotating sleeve 9 to rotate so that the liquid inlet hole 15 is connected to the liquid delivery hole, or the oil inlet hole 16 is connected to the oil delivery hole 19, or the liquid inlet hole 15 is misaligned with the liquid delivery hole, or the oil inlet hole 16 is misaligned with the oil delivery hole 19.

[0039] The drive device includes a reversing sleeve 3 and a reversing handle 2. The reversing sleeve 3 is sleeved on the central shaft 10 and is fixedly connected to the rotating sleeve 9. One end of the reversing handle 2 is sleeved on the central shaft 10, and the other end extends radially along the rotating sleeve 9. A pawl 21 is fixedly provided on the side of the reversing handle 2 facing the reversing sleeve 3. The reversing sleeve 3 has reversing teeth 20 evenly distributed on its circumferential surface. One side of the reversing teeth 20 is arranged along the axial direction of the reversing sleeve 3, and the other side of the reversing teeth 20 is arranged at an angle. The pawl 21 is matched with the reversing teeth 20. When the pawl 21 extends into the area between two adjacent reversing teeth 20, the pawl 21 connects with the angled side of the reversing teeth 20 and drives the rotating sleeve 9 to rotate.

[0040] The working process of this invention achieves switching between three states through a driving device: Non-working state: In the initial state, the reversing handle 2 is not activated, and the infusion holes and oil holes 19 on the infusion ring 8 and oil ring 5 are not aligned and connected with the inlet holes 15 and 16 on the rotating sleeve 9. Cleaning state: When the reversing handle 2 is pressed down for the first time, the pawl 21 enters the area between two adjacent reversing teeth 20, causing the rotating sleeve 9 to rotate in the opposite direction by a set angle, such as 20 degrees. At this time, the infusion hole of the infusion ring 8 is precisely aligned and connected with the infusion hole 15 of the rotating sleeve 9. The connected pressurized cleaning fluid is sprayed out through the liquid injection hole 14 to clean the tapered thread of the drill rod female thread. After releasing the reversing handle 2, the reversing handle 2 returns to the non-working state. Oiling state: Press down the reversing handle 2 again, and the rotating sleeve 9 continues to rotate in the opposite direction by an angle on the basis of the cleaning state. If it rotates a total of 40 degrees, the oil outlet of the oil supply ring 5 is aligned with the oil inlet 16 of the rotating sleeve 9 and connected. The pressurized thread oil is evenly applied to the tapered thread of the drill pipe female thread through the oil spraying hole 13. After releasing the reversing handle 2, the reversing handle 2 resets again.

[0041] In one embodiment, the end of the pawl 21 is a beak-shaped hook that curves away from the rotation direction of the rotating sleeve 9, so that when the reversing handle 2 is pressed, it can easily pass over the opposite reversing tooth 20, thereby driving the reversing sleeve 3 to rotate.

[0042] In one embodiment, see Figure 10 An anti-reverse device is also provided on the end of the central shaft 10 near the drive unit.

[0043] The anti-reverse device includes a pressure cap 1 fixedly installed on one end of the central shaft 10 near the reversing sleeve 3. A pawl 22 extending toward the end face of the reversing sleeve 3 is fixedly connected to the circumferential surface of the pressure cap 1. The reversing sleeve 3 is provided with a number of ribs 23 equal to the number of reversing teeth 20 on the end face of the reversing sleeve 3 facing the pressure cap 1. The ribs 23 are arranged radially along the reversing sleeve 3 and are evenly distributed around the circumference of the reversing sleeve 3.

[0044] In one embodiment, the oil supply device is an oil supply ring 5, which includes a hollow annular oil supply sleeve 18 and a hollow oil supply rod 17. The oil supply rod 17 is fixedly connected to and communicates with the oil supply sleeve 18. The oil supply sleeve 18 is sleeved on the rotating sleeve 9, and the oil supply holes 19 are evenly distributed along the circumference of the oil supply sleeve 18 on the side of the oil supply sleeve 18 facing the rotating sleeve 9. An oil storage device is connected to the end of the oil delivery rod 17 that is away from the oil delivery sleeve 18.

[0045] In one embodiment, the liquid supply device is an infusion ring 8, which includes a hollow annular infusion sleeve and a hollow infusion rod. The infusion rod is fixedly connected to and communicates with the infusion sleeve. The infusion sleeve is sleeved on a rotating sleeve 9, and the infusion holes are evenly distributed along the circumference of the infusion sleeve on the side of the infusion sleeve facing the rotating sleeve 9. A liquid storage device is connected to the end of the infusion rod away from the liquid supply sleeve.

[0046] The top of the rotating sleeve 9 is provided with an annular boss, which is sleeved on the central shaft 10 and fixedly connected to the rotating sleeve 9; The infusion sleeve and the oil sleeve 18 are respectively movably sleeved on the boss step, the oil sleeve 18 is located above the infusion sleeve, the inlet hole 15 is set on the end face of the rotating sleeve 9 facing the boss, and the infusion hole is connected to the liquid supply chamber 11 through the inlet hole 15. The oil inlet 16 is provided on the boss, and the oil delivery hole 19 is connected to the oil supply chamber 12 through the oil inlet 16. The reversing sleeve 3 is fixedly sleeved on the boss and located above the oil supply sleeve 18.

[0047] In one embodiment, an isolation sleeve 6 is provided between the infusion sleeve and the oil infusion sleeve 18, and the isolation sleeve 6 is fixedly sleeved on the boss.

[0048] The oil delivery rod 17 is located directly above the infusion rod, and a connecting shaft 7 is fixedly installed between the infusion rod and the oil delivery rod 17; The reversing handle 2 is located directly above the oil delivery rod 17, and a guide rod is fixedly provided on the side of the oil delivery rod 17 facing the reversing handle 2. The guide rod is vertically provided on the end of the oil delivery rod 17 away from the rotating sleeve 9. The reversing handle 2 is provided with a guide hole at the position corresponding to the guide rod. The end of the guide rod away from the oil delivery rod 17 passes through the guide hole and is movably connected to the reversing handle 2. A spring 4 is sleeved on the guide rod between the reversing handle 2 and the oil supply rod 17. The two ends of the spring 4 are connected to the reversing handle 2 and the oil supply rod 17 respectively. After the reversing handle 2 is released, the spring 4 causes the reversing handle 2 to return to the non-working state.

[0049] In use, the specific shape of the rotating sleeve 9 matches the shape of the surface where the thread of the part to be processed is located. If the thread to be processed is an external thread, the rotating sleeve 9 of the present invention is sleeved on the outside of the part to be processed. If the thread to be processed is an internal thread, the rotating sleeve 9 of the present invention is inserted into the part to be processed. The outlet ends of both the liquid injection hole 14 and the oil injection hole 13 are positioned directly opposite the grooves between the thread teeth of the thread to be treated.

[0050] The present invention will be described below using the processing of NC50 drill pipe female thread as an example; The NC50 drill pipe has a tapered thread for the female thread, with a thread angle of 60 degrees, a taper of 1:6, a pitch of 6.35 mm (4 threads per inch), a large end diameter of 133.35 mm, and a crest width of 1.65 mm. See the structure of this invention. Figure 1 As shown, The rotating sleeve 9 consists of, from bottom to top, a cylindrical conical surface with liquid injection holes 14 and oil injection holes 13, an annular cap, and an annular step of a certain length. The rotating sleeve 9 has a cylindrical through hole in the middle for fitting onto the central shaft 10.

[0051] The dimensions of the cylindrical conical surface of the rotating sleeve 9 are the same as the dimensions of the inner surface of the conical thread of the drill pipe nut. To facilitate complete processing of the drill pipe nut thread, liquid injection holes 14 and oil injection holes 13 are required at the bottom of the drill pipe nut thread. The liquid inlet hole 15 and the oil inlet hole 16 are not on the same circumference and do not interfere with each other. See [reference needed]. Figure 3 As shown, the phase angle between the liquid inlet 15 and the oil inlet 16 is 360 / n / 3. For example, this invention has 6 oil inlet holes 19 and 6 liquid inlet holes. The phase angle between the liquid inlet 15 and the oil inlet 16 is 360 / 6 / 3 = 20 degrees. If the initial phase angle of the liquid inlet 15 is 20 degrees, then the initial phase angle of the oil inlet 16 is 40 degrees; the phase angle between the oil inlet 16 and the second liquid inlet 15 is 40 degrees.

[0052] Several liquid injection holes 14 are distributed along a spiral line on the outer surface of the rotating sleeve 9. The number of holes per spiral line is equal to that of the liquid inlet holes 15, and the total number is equal to S=n·m, where m is the number of spiral lines. They communicate with the liquid inlet holes 15 inward and face the groove between two teeth of the drill pipe female thread outward. Several oil spraying holes 13 are distributed along a spiral line on the outer surface of the rotating sleeve 9. The number of holes per spiral line is equal to that of the oil inlet holes 16, and the total number is equal to S=n·m, where m is the number of spiral lines. They communicate with the oil inlet holes 16 inward and face the groove between two teeth of the drill pipe internal thread outward. The spiral line of the oil spraying holes 13 is the same as the spiral line of the drill pipe female thread.

[0053] An annular pressure cap is provided on the top of the rotating sleeve 9. The pressure cap is an annular disc with a certain thickness and diameter, the diameter of which is less than or equal to the drill rod female thread step. Several magnets are inlaid on the bottom of the pressure cap along the circumferential direction. After the drill rod female thread is connected, the magnets help to prevent the invention from shifting and liquid from leaking out.

[0054] The rotating sleeve 9 is provided with an annular boss, which is used to sequentially place the infusion ring 8, the isolation sleeve 6, the oil infusion ring 5, and the reversing sleeve 3. The rotating sleeve 9 has a through hole in the middle for placing the central shaft 10.

[0055] The infusion ring 8 is a hollow annular body, which is an infusion sleeve with an external hollow infusion rod. Several infusion holes connected to the inner cavity are provided on the lower surface of the annular body. The diameter of the holes is slightly larger than that of the inlet hole 15. The number and position of the holes correspond one-to-one with the inlet hole 15. There is an inlet line at the rear end of the infusion rod, which is connected to the cleaning liquid. The inner cavity diameter of the infusion ring 8 is equal to the diameter of the boss position on which the rotating sleeve 9 is fitted. During installation, the ring is fitted onto the boss, and the lower end face of the infusion ring 8 is close to the rotating sleeve 9.

[0056] The isolation sleeve 6 is a ring-shaped body with a certain thickness. Its inner and outer diameters are the same as those of the infusion ring 8. During installation, it is fitted onto the boss on the rotating sleeve 9 and fixed with glue or other means. There is a micro gap between the lower surface and the upper surface of the infusion ring 8. The connecting shaft 7 is a short cylinder with the same height as the isolation sleeve 6. It is fixed between the infusion rod and the oil infusion rod 17 by glue or other methods to connect the two.

[0057] The oil delivery ring 5 is a hollow annular body, which serves as the oil delivery sleeve 18. An external hollow oil delivery rod 17 is connected to the ring. Several oil delivery holes 19, connected to the inner cavity, are provided on the lower surface of the annular body. The diameter of these holes is slightly larger than that of the oil inlet holes 16, and their number and position correspond one-to-one with the oil inlet holes 16. An oil inlet line is located at the rear end of the oil delivery rod 17, connecting to the bottom of a pressurized oil storage tank. The inner diameter of the oil delivery ring 5 is equal to the diameter of the boss on which the rotating sleeve 9 is fitted. During installation, the ring is fitted onto the boss, with the lower end face of the oil delivery ring 5 close to the upper surface of the isolation sleeve 6. A guide rod of a certain length and diameter is provided at the tail end of the oil delivery rod 17, used to install the spring 4 and guide the up-and-down movement of the reversing handle 2.

[0058] The reversing sleeve 3 is a hollow cylinder with a certain height and a certain diameter. The diameter is greater than or equal to the outer diameter of the oil supply sleeve 18. Multiple reversing teeth 20 are fixedly arranged on the circumference of the reversing sleeve 3. The area between two adjacent reversing teeth 20 is the reversing groove. The number of reversing grooves is three times that of the liquid inlet hole 15, i.e., 3n. Its shape is an inverted trapezoid, as shown in Figure 7. One side of the trapezoid is perpendicular to the upper and lower bases, and the two ends coincide with the endpoints of the upper and lower bases. The other side is inclined at a certain angle to the upper and lower bases. The circumferential angle of the upper base is equal to 360 / n / 3, and the width s is equal to the chord length of the circumferential angle. The height h and the width c of the lower base are designed as needed, and the cutting depth is determined by the user.

[0059] On the upper end face of the reversing sleeve 3, 3n ribs 23 are evenly distributed along the circumference, including n long ribs 23 and 2n short ribs 23. Two short ribs 23 are set between two adjacent long ribs 23. The short ribs 23 represent the positions of the oil inlet hole 16 or the liquid inlet hole 15. In addition, the ribs 23 cooperate with the pawl 22 to prevent the rotating sleeve 9 from reversing.

[0060] The reversing sleeve 3 is fitted onto the upper cylinder of the rotating sleeve 9 and fixed with glue or other means, with a small gap between the lower end face and the upper end face of the oil supply ring 5.

[0061] The reversing handle 2 is a ring of a certain thickness connected to a handle of a certain length. There is a guide hole at the rear of the handle, which is fitted onto a guide post on the oil supply ring 5. A spring 4 is installed on the guide post. When the reversing handle 2 moves downward under the action of external force, the spring 4 is compressed; when the external force is released, the spring 4 returns to its original position.

[0062] The reversing handle 2 is equipped with a pawl 21. The end of the pawl 21 is a beak-shaped hook that is bent away from the rotation direction of the rotating sleeve 9. In the non-working state, the bent part of the pawl 21 is made of vulcanized rubber. When the beak guide rod enters the reversing groove and is in the working state, the beak part straightens under the action of the reversing teeth 20. The distance between the pawl 21 and the center line is based on the appropriate distance of entering the guide groove.

[0063] The pressure cap 1 is a hollow cylinder with a certain thickness and diameter. A stepped shaft is set on one side and connected to the cap body. A pawl 22 is mounted on the shaft. The head of the pawl 22 is close to the rib 23 on the upper end face of the reversing sleeve 3, which controls the rotating sleeve 9 to rotate in only one direction.

[0064] This invention has three states: 1. Non-working state; 2. Cleaning fluid delivery state; 3. Thread oil delivery state; 4. Return to the first state; each will be described below.

[0065] I. Non-working status There are two situations when not in operation. A. The reversing handle 2 is suspended, the pawl 21 is not in the reversing groove, the end of the pawl 21 is bent and close to the inclined side of the reversing groove. At this time, the liquid inlet hole 15 and the liquid delivery hole, the oil inlet hole 16 and the oil delivery hole 19 are not connected. II. Cleaning fluid delivery status: Rotating sleeve 9 rotates, and inlet hole 15 and delivery hole are connected. When the reversing handle 2 is pressed down, the end of the pawl 21 is bent and enters the guide groove under the guidance of the end of the pawl 21. The rotating sleeve 9 rotates, and when the end of the pawl 21 reaches the bottom of the reversing groove, it straightens under the action of lateral force because the end of the pawl 21 is made of vulcanized rubber. At this time, the spring 4 is compressed, and the rotating sleeve 9 rotates 20 degrees in the opposite direction. The infusion hole at the bottom of the infusion ring 8 and the infusion hole 15 on the rotating sleeve 9 are connected one-to-one. Figure 11 As shown, since the infusion tube at the rear of the infusion ring 8 is connected to the pressurized storage container, a command is issued to open the solenoid valve on the storage container. The liquid in the infusion port is sprayed out through the liquid jet hole 14 to clean the threads to be treated. Releasing the force pressing down on the reversing handle 2, the reversing handle 2 resets under the force of the spring 4, and the end of the pawl 21 disengages from the reversing groove and returns to its bent state. The invention returns to state one.

[0066] III. When conveying thread oil, the rotating sleeve 9 continues to rotate, and the oil inlet 16 and oil outlet 19 are connected. Pressing down the reversing handle 2 again, the end of the pawl 21 is bent and enters the guide groove under the guidance of the end of the pawl 21. The rotating sleeve 9 continues to rotate. When the end of the pawl 21 reaches the bottom of the reversing groove, it straightens under the action of lateral force because the beak is made of vulcanized rubber. At this time, the spring 4 is compressed, and the rotating sleeve 9 rotates 40 degrees in the opposite direction from state one. The oil inlet 19 at the bottom of the oil supply ring 5 and the oil inlet 16 on the rotating sleeve 9 are connected one-to-one. Figure 12 As shown, since the oil supply pipe at the rear of the oil supply ring 5 is connected to the pressurized oil storage container, an opening command is issued to the solenoid valve on the oil storage container, the oil supply ring 5 supplies oil, and the oil in the oil supply hole 19 is applied to the threads to be treated through the oil spray hole 13, releasing the force of the downward pressure on the reversing handle 2. The reversing handle 2 is reset under the action of the spring 4, and the end of the pawl 21 disengages from the reversing groove and returns to its bent state. The present invention returns to state one.

Claims

1. A handheld semi-automatic thread cleaning and oiling device, comprising a central shaft, characterized in that a rotating sleeve is axially fixedly sleeved on the central shaft, the rotating sleeve being cylindrical; The rotating sleeve is connected to a liquid supply device and an oil supply device. The rotating sleeve is provided with an annular liquid supply chamber and an annular oil supply chamber. Multiple oil spray holes and liquid spray holes are provided on the circumference of the rotating sleeve. The oil spray holes and liquid spray holes are spirally distributed on the circumference of the rotating sleeve. The oil spray holes are all connected to the oil supply chamber, and the liquid spray holes are all connected to the liquid supply chamber. The rotating sleeve is provided with a liquid inlet at the position where it is connected to the liquid supply device, and the liquid supply device is provided with a liquid delivery hole. The rotating sleeve is provided with an oil inlet at the position where it is connected to the oil supply device, and the oil supply device is provided with an oil delivery hole. The liquid inlet and oil inlet are staggered. It also includes a drive device that drives the rotating sleeve to rotate so that the liquid inlet hole and the liquid delivery hole are connected, or the oil inlet hole and the oil delivery hole are connected, or the liquid inlet hole and the liquid delivery hole are misaligned, or the oil inlet hole and the oil delivery hole are misaligned.

2. The handheld semi-automatic thread cleaning and oiling device as described in claim 1, characterized in that, The drive device includes a reversing sleeve and a reversing handle. The reversing sleeve is sleeved on the central shaft and fixedly connected to the rotating sleeve. One end of the reversing handle is sleeved on the central shaft, and the other end extends radially along the rotating sleeve. A pawl is fixedly provided on the side of the reversing handle facing the reversing sleeve. The reversing sleeve has reversing teeth evenly distributed on its circumferential surface. One side of each reversing tooth is arranged along the axial direction of the reversing sleeve, and the other side of the reversing tooth is arranged at an angle. The pawl is matched with the reversing teeth. When the pawl extends into the area between two adjacent reversing teeth, the pawl connects with the angled side of the reversing teeth and drives the rotating sleeve to rotate.

3. The handheld semi-automatic thread cleaning and oiling device as described in claim 2, characterized in that, The end of the claw is a beak-shaped hook that curves away from the rotation direction of the rotating sleeve.

4. The handheld semi-automatic thread cleaning and oiling device as described in claim 2, characterized in that, An anti-reverse device is also provided on the end of the central shaft near the drive device.

5. The handheld semi-automatic thread cleaning and oiling device as described in claim 4, characterized in that, The anti-reverse device includes a pressure cap fixedly mounted on one end of the central shaft near the reversing sleeve. A pawl extending toward the end face of the reversing sleeve is fixedly connected to the circumferential surface of the pressure cap. The reversing sleeve has ribs of the same number as the number of reversing teeth on the end face of the pressure cap. The ribs are arranged radially along the reversing sleeve and are evenly distributed along the circumference of the reversing sleeve.

6. The handheld semi-automatic thread cleaning and oiling device as described in claim 2, characterized in that, The oil supply device is an oil delivery ring, which includes a hollow annular oil delivery sleeve and a hollow oil delivery rod. The oil delivery rod is fixedly connected to the oil delivery sleeve and communicates with it. The oil delivery sleeve is sleeved on the rotating sleeve, and the oil delivery holes are evenly distributed along the circumference of the oil delivery sleeve on the side of the oil delivery sleeve facing the rotating sleeve. An oil storage device is connected to the end of the oil delivery rod away from the oil delivery sleeve.

7. The handheld semi-automatic thread cleaning and oiling device as described in claim 6, characterized in that, The liquid supply device is an infusion ring, which includes a hollow annular infusion sleeve and a hollow infusion rod. The infusion rod is fixedly connected to the infusion sleeve and communicates with it. The infusion sleeve is sleeved on a rotating sleeve, and the infusion holes are evenly distributed along the circumference of the infusion sleeve on the side of the infusion sleeve facing the rotating sleeve. A liquid storage device is connected to the end of the infusion rod away from the liquid supply sleeve.

8. The handheld semi-automatic thread cleaning and oiling device as described in claim 7, characterized in that, The top of the rotating sleeve is provided with an annular boss, which is sleeved on the central shaft and fixedly connected to the rotating sleeve. The infusion sleeve and the oil sleeve are respectively movably sleeved on the boss step, the oil sleeve is located above the infusion sleeve, the inlet hole is set on the end face of the rotating sleeve facing the boss, and the infusion hole is connected to the liquid supply chamber through the inlet hole; The oil inlet is located on the boss, and the oil delivery hole is connected to the oil supply chamber through the oil inlet. The reversing sleeve is fixedly fitted onto the boss and located above the oil supply sleeve.

9. The handheld semi-automatic thread cleaning and oiling device as described in claim 6, characterized in that, An isolation sleeve is provided between the infusion sleeve and the oil infusion sleeve, and the isolation sleeve is fixedly fitted onto the boss.

10. A handheld semi-automatic thread cleaning and oiling device as described in claim 6, characterized in that, The oil delivery rod is located directly above the liquid delivery rod, and a connecting shaft is fixedly installed between the liquid delivery rod and the oil delivery rod; The reversing handle is located directly above the oil delivery rod, and a guide rod is fixedly installed on the side of the oil delivery rod facing the reversing handle. The guide rod is vertically installed on the end of the oil delivery rod away from the rotating sleeve. The reversing handle is provided with a guide hole at the position of the guide rod. The end of the guide rod away from the oil delivery rod passes through the guide hole and is movably connected to the reversing handle. A spring is fitted onto the guide rod between the reversing handle and the oil delivery rod, and the two ends of the spring are connected to the reversing handle and the oil delivery rod, respectively.

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