A double-end nozzle and a production process thereof

Abstract

The application relates to the field of nozzles, in particular to a double-head nozzle and a production process thereof, which comprises a valve body one and a valve body two, the valve body one is provided with an inlet flow channel, the valve body one is provided with a communication hole, the valve body two is provided with an outlet flow channel, the valve body two is provided with a sealing cavity, the valve body one is connected with a leakage prevention assembly, the leakage prevention assembly comprises a leakage prevention ring, a leakage prevention rod, a leakage prevention screw and a leakage prevention elastic piece, the leakage prevention ring is connected on the inner wall of the inlet flow channel, the leakage prevention rod is slidingly connected on the inner wall of the inlet flow channel, the leakage prevention screw is threadedly fastened and fixed on the inner wall of the inlet flow channel close to the leakage prevention rod, one end of the leakage prevention elastic piece in the elastic force direction abuts against the leakage prevention screw, and the other end of the leakage prevention elastic piece in the elastic force direction abuts against the leakage prevention screw. In the application, the leakage prevention ring, the leakage prevention rod, the leakage prevention screw and the leakage prevention elastic piece are arranged, so that liquid in a spray gun is not easy to drop from the double-head nozzle, water resource waste is reduced, the energy-saving concept is embodied, toxic liquid in the double-head nozzle is not easy to drop on a user, and the safety of nozzle use is improved.

Description

A dual-head nozzle and its manufacturing process Technical Field

[0001] This application relates to the field of nozzles, and more particularly to a dual-head nozzle and its manufacturing process. Background Technology

[0002] Nozzles are a crucial component in equipment for spraying, misting, oiling, sandblasting, or coating, and are mainly used in plant protection or cleaning.

[0003] Nozzles commonly leak under low pressure. When plant protection machinery stops working, the solution inside the spray gun will continuously drip from the nozzle, wasting water resources. Some solutions may also harm the human body, thus reducing the safety of nozzle use. Summary of the Invention

[0004] To address the issue of easy dripping of medicine from nozzles, this application provides a dual-head nozzle and its manufacturing process.

[0005] Firstly, this application provides a dual-head nozzle, which adopts the following technical solution:

[0006] A dual-head nozzle includes a valve body 1 and a valve body 2. One end of the valve body 1 is connected to the valve body 2, and the other end of the valve body 1 is used for connecting a spray gun. The valve body 1 has a liquid inlet channel communicating with the spray gun and a connecting hole that connects to the liquid inlet channel. The valve body 2 has a liquid outlet channel for liquid to be sprayed out and a sealing cavity for the valve body 1 to be embedded in, the sealing cavity communicating with the liquid outlet channel. A leak-proof assembly is connected to the valve body 1. The leak-proof assembly includes a leak-proof ring, a leak-proof rod, a leak-proof screw, and a leak-proof elastic element. The leak-proof ring is connected to the inner wall of the liquid inlet channel, and the leak-proof rod is slidably connected to the inner wall of the liquid inlet channel. The leak-proof rod is located on the side of the leak-proof ring near the connecting hole. The leak-proof screw is threaded and fixed to the inner wall of the liquid inlet channel near the leak-proof rod. One end of the leak-proof elastic element in the direction of elastic force abuts against the leak-proof screw, and the other end of the leak-proof elastic element in the direction of elastic force abuts against the leak-proof screw. The leak-proof elastic element has the tendency to force the leak-proof rod against the leak-proof ring to form a seal. When the liquid in the spray gun enters the liquid inlet channel, the liquid passes through the leak-proof ring and drives the leak-proof rod to slide away from the leak-proof ring. The sealing effect of the leak-proof rod on the leak-proof ring disappears. The liquid in the liquid inlet channel passes through the leak-proof ring, the connecting hole, the sealing cavity in sequence, and is discharged from the liquid outlet channel.

[0007] By adopting the above technical solution, when the dual-head nozzle is in use, one end of the valve body is connected to the spray gun. The liquid in the spray gun enters the inlet channel, and the connecting hole is located on the side of the anti-leak ring near the anti-leak rod. The hydraulic pressure in the inlet channel increases, and the liquid passes through the anti-leak ring and impacts the anti-leak rod. The liquid in the inlet channel overcomes the elastic force of the anti-leak elastic element, causing the anti-leak rod to slide towards the anti-leak screw, thus eliminating the sealing effect of the anti-leak rod on the anti-leak ring. The liquid in the inlet channel passes through the anti-leak ring, the connecting hole, and the sealing cavity in sequence and is discharged from the outlet channel, realizing the spraying of the dual-head nozzle. When the dual-head nozzle is not in use, the spray gun no longer supplies liquid to the inlet channel, the hydraulic pressure in the inlet channel decreases, and the elastic force of the anti-leak elastic element causes the anti-leak rod to slide towards the anti-leak ring, and the anti-leak rod presses against the anti-leak ring. The system forms a seal, separating the inlet channel and the connecting hole. This prevents residual liquid in the inlet channel from overflowing into the connecting hole through the anti-leak ring and anti-leak rod, thus reducing water waste and embodying the concept of energy conservation. It also prevents toxic liquids from dripping onto the user, improving nozzle safety. Furthermore, the anti-leak screw is threaded onto the inner wall of the inlet channel. When the user needs to adjust the tightening force of the anti-leak rod and anti-leak ring, turning the screw changes the position of the anti-leak screw on the inner wall of the inlet channel, altering the elastic force of the anti-leak element on the anti-leak rod. This allows for adjustable tightening force between the anti-leak rod and anti-leak ring, enabling users to adjust the low-pressure range of the dual-head nozzle and improving its applicability.

[0008] Optionally, the leak-proof rod includes a sliding part and a sealing part. The end of the sliding part is connected to the end of the sealing part. The connection between the sliding part and the sealing part forms a sealing step surface. The end of the sliding part away from the sealing part abuts against the leak-proof elastic element. The end of the sealing part away from the sliding part is used to abut against the inner ring wall of the leak-proof ring to form a seal. The leak-proof assembly also includes a leak-proof sealing ring. The leak-proof sealing ring is sleeved on the sealing part. The leak-proof sealing ring can abut against the sealing step surface and the leak-proof ring to form a seal.

[0009] By adopting the above technical solution, when the dual-head nozzle stops spraying water, the elastic force of the leak-proof elastic element drives the sliding part to slide towards the leak-proof ring. The sealing part is embedded in the inner ring wall of the leak-proof ring, and the outer circumferential wall of the sealing part abuts against the inner ring wall of the leak-proof ring to form a seal. At the same time, the leak-proof sealing ring abuts against the sealing step surface and the leak-proof ring to form a seal, making it difficult for the liquid in the inlet channel to overflow from the connection between the sealing part and the leak-proof ring, thereby improving the sealing stability of the leak-proof component for the inlet channel.

[0010] Optionally, a locking assembly is connected to the valve body one, and a locking cavity is opened on the side of the valve body one facing the valve body two. The locking assembly includes a locking pin and a locking elastic element. One end of the locking elastic element in the elastic direction is connected to the inner wall of the locking cavity, and the other end of the locking elastic element in the elastic direction is connected to the locking pin. The locking elastic element has the tendency to force the locking pin to press against the valve body two.

[0011] By adopting the above technical solution, one end of the locking elastic element in the direction of elastic force is connected to the inner wall of the locking cavity, and the other end of the locking elastic element in the direction of elastic force is connected to the locking pin. The elastic force of the locking elastic element drives the locking pin to press against the valve body two to form a fixed position, so that the valve body two is not easy to shift on the valve body one, ensuring the sealing stability of the valve body one and the valve body two, and making it difficult for the liquid in the liquid inlet channel to overflow from the sealing cavity, thereby improving the anti-leakage stability of the double-headed nozzle.

[0012] Optionally, the valve body 2 is provided with a locking groove for the locking pin to be inserted, and the inner wall of the locking groove can abut against the locking pin to form a seal.

[0013] By adopting the above technical solution, when the locking elastic element drives the locking pin to slide towards the valve body, the locking pin abuts against the inner wall of the locking groove to form a seal, further improving the anti-leakage function of the double-headed nozzle.

[0014] Optionally, the two ends of the valve body are connected to a spray nozzle one and a spray nozzle two respectively. The inner cavities of the spray nozzle one and the spray nozzle two are connected to the liquid outlet channel. The valve body one is rotatably connected in the sealing cavity. When the valve body one is rotated to the point where the connecting hole faces the spray nozzle one, the connecting hole, the sealing cavity, the liquid outlet channel and the inner cavity of the spray nozzle one are connected in sequence.

[0015] By adopting the above technical solution, the valve body 2 is connected to the first and second spray nozzles, and the valve body 1 is rotatably connected in the sealing cavity. When the connecting hole faces the first spray nozzle, the liquid in the inlet channel passes through the anti-leak ring, the connecting hole, and the outlet channel in sequence and is sprayed out from the first spray nozzle. When the liquid in the outlet channel needs to be sprayed out from the second spray nozzle, the user rotates the valve body 1 so that the connecting hole faces the second spray nozzle. The liquid in the inlet channel passes through the anti-leak ring, the connecting hole, and the outlet channel in sequence and is sprayed out from the second spray nozzle. This realizes the replacement of the nozzles on the dual-head nozzle without the user having to unscrew the nozzles for replacement, thereby improving the ease of use of the dual-head nozzle.

[0016] Optionally, multiple locking grooves are provided, and the multiple locking grooves are divided into two groups. One group of locking grooves corresponds to one-to-one with the spray nozzle, and the other group of locking grooves corresponds to one-to-one with the second spray nozzle. The multiple locking grooves in the same group surround the sealing cavity. When the connecting hole faces the first spray nozzle, the inner wall of one of the locking grooves corresponding to the first spray nozzle abuts against the locking pin to form a seal.

[0017] By adopting the above technical solution, when valve body one rotates on the inner wall of the sealing cavity, the connecting hole faces the spray nozzle one. The liquid in the inlet channel passes through the connecting hole and the outlet channel in sequence and is sprayed out from the spray nozzle one. At the same time, the elastic force of the locking elastic element drives the end of the locking pin to embed into the inner wall of one of the locking grooves corresponding to the spray nozzle one to form a seal, making it difficult for the liquid in the inlet channel to overflow from the sealing cavity, thereby ensuring the sealing stability between valve body one and valve body two. When it is necessary to control the flow rate of the liquid sprayed from the spray nozzle one, the user only needs to rotate valve body one to make the end of the locking pin embed into the inner wall of the other locking groove corresponding to the spray nozzle one to form a seal, thereby changing the space connecting the connecting hole and the outlet channel, thereby controlling the flow rate of the liquid sprayed from the spray nozzle one.

[0018] Optionally, a closing groove is provided on the valve body 2. The inner wall of the closing groove can abut against the locking pin to form a seal. The closing groove is located between two sets of locking grooves. When the locking pin is embedded in the closing groove to form a seal, the connecting hole faces the sealing cavity, and the inner wall of the sealing cavity abuts against the outer wall of the valve body 1 to form a seal.

[0019] By adopting the above technical solution, when the dual-head nozzle is not in use and needs to be stored, rotating valve body one will cause the locking chamber and the closing groove to correspond and connect one by one. The elastic force of the locking elastic element will drive the locking pin to slide towards the closing groove. The locking pin will press against the inner wall of the closing groove to form a seal. The connecting hole will face the sealing cavity, and the inner wall of the sealing cavity will press against the outer wall of valve body one to form a seal. This will separate the connecting hole and the liquid outlet channel, making it difficult for the liquid in the connecting hole to enter the liquid outlet channel through the sealing cavity and be discharged, thereby improving the leak-proof performance of the dual-head nozzle.

[0020] Optionally, the valve body 2 is connected with a first reinforcing rib and a second reinforcing rib. The first reinforcing rib is located between the first injection nozzle and the locking groove corresponding to the first injection nozzle, and the second reinforcing rib is located between the second injection nozzle and the locking groove corresponding to the second injection nozzle.

[0021] By adopting the above technical solution, the first and second reinforcing ribs increase the structural strength of the valve body. When the user needs to spray liquid from the first spray nozzle, the user drives the valve body to rotate, and the first reinforcing rib faces the locking cavity. The locking cavity is connected to one of the locking grooves corresponding to the first spray nozzle. The elastic force of the locking elastic element drives the locking pin to press against the inner wall of the locking groove to form a seal.

[0022] Optionally, a sealing ring is fitted onto the valve body, the inner ring wall of the sealing ring abuts against the outer wall of the valve body to form a seal, and the outer ring wall of the sealing ring abuts against the inner wall of the sealing cavity to form a seal.

[0023] By adopting the above technical solution, the inner ring wall of the sealing ring is pressed against the outer wall of the valve body to form a seal, and the outer ring wall of the sealing ring is pressed against the inner wall of the sealing cavity to form a seal, thereby improving the sealing stability between the valve body and the inner wall of the sealing cavity.

[0024] Secondly, the dual-head nozzle manufacturing process provided in this application adopts the following technical solution:

[0025] A manufacturing process for a dual-head nozzle includes the following steps:

[0026] Valve body one and valve body two are installed. Valve body one and valve body two are sequentially processed by hot stamping, precision machining and cleaning. The end of valve body one is embedded into the sealing cavity on valve body two to realize the connection between valve body one and valve body two.

[0027] For the installation of the locking assembly, the locking elastic element is cleaned and then embedded into the locking cavity on the valve body. The locking pin is machined and then cleaned before being embedded into the locking cavity. The elastic force of the locking elastic element drives the locking pin to press against the inner wall of the locking groove to form a seal.

[0028] For leak-proof component installation, after machining and cleaning, the leak-proof rod, leak-proof elastic element and leak-proof screw are sequentially embedded into the liquid inlet channel on valve body one, and the leak-proof screw is tightened and fixed to the inner wall of the liquid inlet channel.

[0029] The first and second spray nozzles are installed. The first and second spray nozzles are first machined and then cleaned. The cleaned spray nozzles are then installed on the valve body.

[0030] By adopting the above technical solution, the elastic force of the locking element drives the locking pin to press against the inner wall of the locking groove to form a seal, making it difficult for valve body two to deviate from valve body one, thereby improving the anti-leakage effect of the double-headed nozzle.

[0031] In summary, this application includes at least one of the following beneficial technical effects:

[0032] 1. The design of anti-leak rings, anti-leak rods, anti-leak screws, and anti-leak elastic components prevents liquid inside the spray gun from dripping from the dual-head nozzles, reducing water waste and embodying the concept of energy conservation. At the same time, it prevents toxic liquid inside the dual-head nozzles from dripping onto the user, thereby improving the safety of nozzle use.

[0033] 2. The anti-leak sealing ring is designed to press against the sealing step surface and form a seal, making it difficult for liquid in the inlet channel to overflow from the connection between the sealing part and the anti-leak ring, thereby improving the sealing stability of the anti-leak component for the inlet channel.

[0034] 3. The locking pin and locking elastic element ensure the sealing stability of valve body one and valve body two, making it difficult for liquid in the inlet channel to overflow from the sealing cavity, thereby improving the leak-proof stability of the dual-head nozzle. Attached Figure Description

[0035] Figure 1 is a schematic diagram of the overall structure of an embodiment of this application.

[0036] Figure 2 is a cross-sectional view of an embodiment of this application, mainly showing the leak-proof component.

[0037] Figure 3 is a schematic diagram of the overall structure of the guide arc plate and water divider in the embodiment of this application.

[0038] Figure 4 is a schematic diagram of the overall structure of valve body 2 in the embodiment of this application.

[0039] Explanation of reference numerals in the attached drawings: 1. Valve body one; 11. Threaded groove; 12. Inlet channel; 13. Connecting hole; 14. Locking cavity; 2. Valve body two; 21. Outlet channel; 22. Sealing cavity; 23. Locking groove; 24. Closing groove; 3. Sealing ring; 4. Leak-proof assembly; 41. Leak-proof rod; 411. Sliding part; 412. Sealing part; 413. Sealing step surface; 42. Leak-proof ring; 43. Leak-proof screw; 44. Leak-proof elastic element; 45. 5. Leak-proof sealing ring; 6. Spray nozzle one; 7. Valve core; 8. Cap body; 9. Cap split; 10. Ceramic plate one; 11. Liquid outlet hole one; 12. Spray nozzle two; 13. Water divider; 14. Guide channel; 15. Ceramic plate two; 16. Liquid outlet hole two; 17. Nozzle cap; 18. Guide arc plate; 19. Filter hole; 10. Locking assembly; 11. Locking pin; 12. Locking elastic element; 13. Reinforcing rib one; 14. Reinforcing rib two. Detailed Implementation

[0040] The present application will be further described in detail below with reference to Figures 1-4.

[0041] This application discloses a dual-head nozzle. Referring to Figures 1 and 2, a dual-head nozzle includes a valve body 1 and a valve body 2. The valve body 2 has a liquid outlet channel 21 for liquid spraying. In this application embodiment, the liquid outlet channel 21 is a strip-shaped channel that extends through the valve body 2 along its length. The valve body 2 has a sealing cavity 22 for the valve body 1 to be embedded in. In this application embodiment, the sealing cavity 22 is a strip-shaped cavity that extends through the valve body 2 and connects to the liquid outlet channel 21 along its length. The length direction of the sealing cavity 22 is perpendicular to the length direction of the liquid outlet channel 21.

[0042] Referring to Figure 2, in this embodiment, the valve body 1 is a circular tube. One end of the valve body 1 along its axial direction has a threaded groove 11 that is threaded to the spray gun. The valve body 1 also has a coaxial liquid inlet channel 12 that communicates with the spray gun. The liquid inlet channel 12 penetrates the valve body 1 along its axial direction. A connecting hole 13 is formed on the outer wall of the valve body 1 away from the threaded groove 11. The axis of the connecting hole 13 is perpendicular to the axis of the valve body 1, and the connecting hole 13 communicates with the liquid inlet channel 12. The end of the valve body 1 away from the threaded groove 11 is rotatably connected to the inner wall of the sealing cavity 22 along its own axis, and the outer wall of the valve body 1 abuts against the inner wall of the sealing cavity 22 to form a seal.

[0043] Referring to Figure 2, a sealing ring 3 is coaxially sleeved on the valve body 1. The sealing ring 3 can be made of rubber or silicone. In this embodiment, the sealing ring 3 is made of rubber, which has a certain deformation capability. The inner ring wall of the sealing ring 3 abuts against the outer wall of the valve body 1 to form a seal, and the outer ring wall of the sealing ring 3 abuts against the inner wall of the sealing cavity 22 to form a seal, thereby improving the sealing stability of the valve body 1 within the sealing cavity 22. When the valve body 1 rotates within the sealing cavity 22 until the connecting hole 13 faces the liquid outlet channel 21, the liquid in the spray gun passes through the inlet channel 12 and the connecting hole 13 in sequence and is discharged from the outlet channel 21, realizing the spraying of liquid by the dual-head nozzle.

[0044] Referring to Figure 2, a leak-proof component 4 is connected to the valve body 2. The leak-proof component 4 is used to restrict the liquid in the inlet channel 12 from entering the outlet channel 21 through the connecting hole 13. The leak-proof component 4 includes a leak-proof rod 41, a leak-proof ring 42, a leak-proof screw 43, a leak-proof elastic element 44, and a leak-proof sealing ring 45. The outer ring wall of the leak-proof ring 42 is coaxially welded and fixed to the inner wall of the inlet channel 12. The leak-proof rod 41 includes a sliding part 411 and a sealing part 412. The end of the sliding part 411 is coaxially fixed to the end of the sealing part 412. The diameter of the sliding part 411 is larger than the diameter of the sealing part 412. The connection between the sealing part 412 and the sliding part 411 forms a sealing step surface 413. The sliding part 411 is slidably connected to the inner wall of the inlet channel 12. The sliding part 411 is located on the side of the leak-proof ring 42 near the connecting hole 13, and the sliding direction of the sliding part 411 is parallel to the axis of the valve body 1. The axis of the sealing part 412 coincides with the axis of the leak-proof ring 42, the end of the sealing part 412 away from the sliding part 411 faces the leak-proof ring 42, and the sealing part 412 can be embedded in the leak-proof ring 42.

[0045] Referring to Figure 2, the leak-proof sealing ring 45 can be made of rubber or silicone. In this embodiment, the leak-proof sealing ring 45 is made of rubber, which has a certain deformation capability. The leak-proof sealing ring 45 is coaxially sleeved on the sealing part 412, and the inner ring wall of the leak-proof sealing ring 45 abuts against the sealing part 412 to form a fixed seal. The leak-proof sealing ring 45 can abut against the leak-proof ring 42 to form a seal.

[0046] Referring to Figure 2, one end of the anti-leakage screw 43 is threaded into the inner wall of the inlet channel 12 away from the threaded groove 11 to form a seal, and the other end of the anti-leakage screw 43 protrudes from the valve body 1 for the user to tighten. The anti-leakage screw 43 is pressed against the outer wall of the valve body 1 and the outer wall of the valve body 2 to form a fixed structure. The anti-leakage elastic element 44 can be a compression spring or a torsion spring. In this embodiment, the anti-leakage elastic element 44 is a compression spring with a certain deformation capability. The anti-leakage elastic element 44 is embedded in the inlet channel 12. One end of the anti-leakage elastic element 44 in the elastic direction presses against the anti-leakage screw 43, and the other end of the anti-leakage elastic element 44 in the elastic direction presses against the end of the sliding part 411 away from the sealing part 412. The elastic direction of the anti-leakage elastic element 44 is parallel to the axis of the valve body 1. The anti-leakage elastic element 44 has the elastic force to drive the sliding part 411 to slide towards the anti-leakage ring 42, and the outer wall of the sealing part 412 presses against the inner ring wall of the anti-leakage ring 42 to form a seal.

[0047] Referring to Figure 2, when the liquid in the spray gun enters the inlet channel 12, the hydraulic pressure in the inlet channel 12 increases. The liquid in the inlet channel 12 passes through the leak-proof ring 42 and drives the sealing part 412 to slide away from the leak-proof ring 42, so that the sealing effect of the sealing part 412 on the leak-proof ring 42 disappears. The liquid in the inlet channel 12 passes through the leak-proof ring 42 and the connecting hole 13 in sequence and is discharged from the outlet channel 21, realizing the spraying of liquid by the dual-head nozzle. When the spray gun stops working, the hydraulic pressure in the inlet channel 12 decreases. The elastic force of the leak-proof elastic element 44 drives the sliding part 411 to slide closer to the leak-proof ring 42. The sealing part 412 is embedded in the leak-proof ring 42, and the outer wall of the sealing part 412 abuts against the inner ring wall of the leak-proof ring 42 to form a seal. At the same time, the leak-proof sealing ring 45 makes it difficult for the liquid in the inlet channel 12 to enter the outlet channel 21 through the connecting hole 13, thereby improving the leak-proof performance of the dual-head nozzle.

[0048] Referring to Figure 2, each end of the valve body 2 along its length is connected to a spray nozzle 5 and a spray nozzle 6, both of which are connected to the liquid outlet channel 21. The spray nozzle 5 includes a valve core 51, a cap body 52, a cap split 53, and a ceramic disc 54. The valve core 51 is threadedly connected to the inner wall of the liquid outlet channel 21 for fixation. The cap body 52 is coaxially threadedly connected to the outer wall of the valve core 51, protruding from the valve body 2 for fixation. The ceramic disc 54 has a liquid outlet hole 541 for liquid discharge. The ceramic disc 54 is coaxially embedded in the cap split 53, which is coaxially threadedly connected to the end of the cap body 52 away from the valve core 51. The cap split 53 confines the ceramic disc 54 to the end of the cap body 52 away from the valve body 2. When the connecting hole 13 faces the valve core 51, the liquid in the connecting hole 13 enters the liquid outlet channel 21. The liquid in the liquid outlet channel 21 steadily passes through the valve core 51 and the cap body 52 in sequence and is discharged from the liquid outlet hole 541, realizing the spraying of liquid by the dual-head nozzle.

[0049] Referring to Figures 2 and 3, the second spray nozzle 6 includes a water-dividing plate 61, a ceramic plate 62, a nozzle cap 63, and a guide arc plate 64. The nozzle cap 63 is threadedly connected to the outer wall of the second valve body 2 for fixation, and the inner cavity of the nozzle cap 63 is connected to the liquid outlet channel 21. The guide arc plate 64 has a plurality of filter holes 641 evenly spaced, and the filter holes 641 penetrate the guide arc plate 64. In this embodiment, the water-dividing plate 61 is a circular plate, and the water-dividing plate 61 has a plurality of guide channels 611 spaced apart. The guide channels 611 surround the axis of the water-dividing plate 61. In this embodiment, the guide channels 611 are arc-shaped channels, and the center line of the guide channels 611 is parallel to the axis of the water-dividing plate 61, and the guide channels 611 penetrate the water-dividing plate 61. The second ceramic plate 62 has a second liquid outlet hole 621, and the second liquid outlet hole 621 penetrates the second ceramic plate 62.

[0050] Referring to Figures 2 and 3, the guide arc plate 64, the water separator 61, and the ceramic disc 62 are sequentially embedded into the inner wall of the liquid outlet channel 21. The nozzle cap 63 is threadedly connected to the outer wall of the valve body 2 for fixation, and the nozzle cap 63 presses against the ceramic disc 62 for fixation, thus fixing the ceramic disc 62 to the inner wall of the liquid outlet channel 21. The liquid in the liquid outlet channel 21 passes through the sieve holes along the arc surface of the guide arc plate 64 and impacts the water separator 61. The liquid impacts the ceramic disc 62 along the guide channel 611 and is discharged from the liquid outlet hole 621, thus realizing the discharge of liquid by the spray nozzle 6.

[0051] Referring to Figure 2, a locking assembly 7 is connected to valve body 1, which is used to lock and fix valve body 2 onto valve body 1. A locking cavity 14 for accommodating the locking assembly 7 is provided at the end of valve body 1 facing valve body 2. The locking assembly 7 includes a locking pin 71 and a locking elastic element 72. The locking elastic element 72 can be a compression spring or a tension spring. In this embodiment, the locking elastic element 72 is a compression spring with a certain deformation capability. The locking elastic element 72 and the locking pin 71 are sequentially embedded in the locking cavity 14. One end of the locking elastic element 72 in the direction of its elastic force abuts against the inner wall of the locking cavity 14, and the other end of the locking elastic element 72 in the direction of its elastic force abuts against the locking pin 71. The locking elastic element 72 has a tendency to forcefully push the end of the locking pin 71 against valve body 2.

[0052] Referring to Figures 2 and 4, the valve body 2 has a locking groove 23 for the locking pin 71 to be inserted. The locking groove 23 can abut against the locking pin 71 to form a seal. In this embodiment, there are multiple locking grooves 23, which are divided into two groups. One group of locking grooves 23 corresponds one-to-one with the first injection nozzle, and the other group of locking grooves 23 corresponds one-to-one with the second injection nozzle. The multiple locking grooves 23 in the same group surround the sealing cavity 22. When the valve body 1 rotates on the inner wall of the sealing cavity 22 and the connecting hole 13 faces the first injection nozzle, the locking cavity 14 communicates with one of the locking grooves 23 corresponding to the first injection nozzle. The locking elastic element 72 forces the locking pin 71 to be inserted into the locking groove 23. The inner wall of the locking groove 23 abuts against the locking pin 71 to form a fixation, making it less likely for the valve body 2 to shift on the valve body 1, thereby improving the stability of the connection between the valve body 1 and the valve body 2.

[0053] Referring to Figures 2 and 4, a closing groove 24 is provided on the valve body 2. The number of closing grooves 24 can be one or two. In this embodiment, there are two closing grooves 24. The two closing grooves 24 are distributed at intervals around the axis of the sealing cavity 22, and the closing grooves 24 are located between two sets of locking grooves 23. When the valve body 1 rotates on the inner wall of the sealing cavity 22, the closing groove 24 connects to the locking cavity 14. The locking elastic element 72 drives the locking pin 71 to embed into the closing groove 24. The locking pin 71 abuts against the inner wall of the closing groove 24 to form a seal. The connecting hole 13 faces the sealing cavity 22, and the outer wall of the valve body 1 abuts against the inner wall of the sealing cavity 22 to form a seal, thereby separating the connecting hole 13 and the liquid outlet channel 21, making it difficult for the liquid in the connecting hole 13 to enter the liquid outlet channel 21 through the sealing cavity 22.

[0054] Referring to Figure 2, reinforcing ribs 8 and 9 are fixed on valve body 2. Reinforcing ribs 8 and 9 are evenly spaced along the axis of valve body 1. Reinforcing rib 8 is located between the spray nozzle 5 and the locking groove 23 corresponding to the spray nozzle 5. Reinforcing rib 9 is located between the spray nozzle 6 and the locking groove 23 corresponding to the spray nozzle 6. When the spray nozzle 5 needs to spray liquid, it drives valve body 1 to rotate on the inner wall of the sealing cavity 22. The locking cavity 14 is close to the reinforcing rib 8. The locking cavity 14 is connected to one of the locking grooves 23 corresponding to the spray nozzle 5. The locking elastic element 72 drives the locking pin 71 to press against the inner wall of the locking groove 23 to form a seal. The connecting hole 13 faces the valve core 51. The liquid in the connecting hole 13 stably passes through the liquid outlet channel 21, the valve core 51, the cap body 52 and is discharged from the liquid outlet hole 541 in sequence, realizing the spraying of liquid by the double-headed nozzle.

[0055] The implementation principle of a dual-head nozzle in this application embodiment is as follows: Liquid in the spray gun enters the inlet channel 12, increasing the hydraulic pressure within the inlet channel 12. The liquid in the inlet channel 12 passes through the anti-leak ring 42 and drives the sealing part 412 to slide away from the anti-leak ring 42, causing the sealing effect of the sealing part 412 on the anti-leak ring 42 to disappear. The liquid in the inlet channel 12 then passes through the anti-leak ring 42 and the connecting hole 13 in sequence and is discharged from the outlet channel 21, thus realizing the spraying of liquid by the dual-head nozzle. When the spray gun stops working, the hydraulic pressure in the inlet channel 12... The elastic force of the leak-proof elastic element 44 drives the sliding part 411 to slide closer to the leak-proof ring 42. The sealing part 412 is embedded in the leak-proof ring 42, and the outer wall of the sealing part 412 abuts against the inner ring wall of the leak-proof ring 42 to form a seal. At the same time, the leak-proof sealing ring 45 makes it difficult for the liquid in the inlet channel 12 to enter the outlet channel 21 through the connecting hole 13, thereby improving the leak-proof performance of the double-headed nozzle; reducing water waste and reflecting the concept of energy saving. At the same time, the toxic liquid in the double-headed nozzle is less likely to drip onto the user, thereby improving the safety of nozzle use.

[0056] This application also discloses a manufacturing process for a dual-head nozzle, comprising the following steps:

[0057] Valve body 1 and valve body 2 are installed. Valve body 1 and valve body 2 are sequentially processed by hot stamping, precision machining and cleaning. The end of valve body 1 is embedded into the sealing cavity 22 on valve body 2 to realize the connection between valve body 1 and valve body 2.

[0058] When the locking assembly 7 is installed, the locking elastic element 72 is cleaned and then embedded into the locking cavity 14 on the valve body 1. The locking pin 71 is machined and then cleaned before being embedded into the locking cavity 14. The elastic force of the locking elastic element 72 drives the locking pin 71 to press against the inner wall of the locking groove 23 to form a seal.

[0059] The leak-proof component 4 is installed by machining the leak-proof rod 41, the leak-proof elastic element 44, and the leak-proof screw 43, and then cleaning them before embedding them into the liquid inlet channel 12 on the valve body 1. The leak-proof screw 43 is then tightened and fixed to the inner wall of the liquid inlet channel 12.

[0060] The spray nozzle 5 is installed. The valve core 51, the cap body 52 and the cap split 53 are machined and then cleaned. The valve core 51 is threaded to the inner wall of the liquid outlet channel 21 to form a fixation. The cap body 52 is threaded to the outer wall of the valve core 51. The ceramic plate abuts against the end of the cap body 52. ​​The cap split 53 is threaded to the outer wall of the cap body 52 and presses the ceramic plate 54 against the cap body 52 to fix it.

[0061] The second spray nozzle 6 is installed, and the nozzle cap 63 is cleaned after being machined. The guide arc plate 64, the water divider 61 and the ceramic plate 62 are embedded in the inner wall of the liquid outlet channel 21 in sequence. The nozzle cap 63 is threaded to the outer wall of the valve body 2 to form a fixed position. The nozzle cap 63 confines the ceramic plate 62 within the liquid outlet channel 21.

[0062] The implementation principle of a dual-head nozzle manufacturing process in this application embodiment is as follows: the locking elastic element 72 forces the locking pin 71 to press against the inner wall of the locking groove 23 to form a seal, so that the valve body 2 is less likely to deviate on the valve body 1, thereby improving the anti-leakage effect of the dual-head nozzle.

[0063] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dual-head nozzle, characterized in that: The device includes a valve body 1 (1) and a valve body 2 (2). One end of the valve body 1 (1) is connected to the valve body 2 (2), and the other end of the valve body 1 (1) is used for connecting a spray gun. The valve body 1 (1) has a liquid inlet channel (12) communicating with the spray gun. The valve body 1 (1) has a connecting hole (13) communicating with the liquid inlet channel (12). The valve body 2 (2) has a liquid outlet channel (21) for liquid to be sprayed out. The valve body 2 (2) has a sealing cavity (22) for the valve body 1 (1) to be embedded in. The sealing cavity (22) communicating with the liquid outlet channel (21). The end of the valve body 1 (1) is rotatably connected to the sealing cavity (22) along its own axis. On the inner wall of the valve body (1), a leak-proof assembly (4) is connected. The leak-proof assembly (4) includes a leak-proof ring (42), a leak-proof rod (41), a leak-proof screw (43), and a leak-proof elastic element (44). The leak-proof ring (42) is connected to the inner wall of the liquid inlet channel (12). The leak-proof rod (41) is slidably connected to the inner wall of the liquid inlet channel (12). The leak-proof rod (41) is located on the side of the leak-proof ring (42) near the connecting hole (13). The leak-proof screw (43) is threaded and fixed to the inner wall of the liquid inlet channel (12) near the leak-proof rod (41). One end of the leak-proof elastic element (44) in the elastic direction abuts against the leak-proof screw (43). The other end of the elastic element (44) in the elastic direction abuts against the anti-leak screw (43). The anti-leak elastic element (44) has the tendency to force the anti-leak rod (41) against the anti-leak ring (42) to form a seal. When the liquid in the spray gun enters the liquid inlet channel (12), the liquid passes through the anti-leak ring (42) and forces the anti-leak rod (41) to slide away from the anti-leak ring (42). The sealing effect of the anti-leak rod (41) on the anti-leak ring (42) disappears. The liquid in the liquid inlet channel (12) passes through the anti-leak ring (42), the connecting hole (13), the sealing cavity (22) in sequence and is discharged from the liquid outlet channel (21). A locking device is connected to the valve body (1). The component (7) has a locking cavity (14) on the side of the valve body (1) facing the valve body (2). The locking component (7) includes a locking pin (71) and a locking elastic element (72). One end of the locking elastic element (72) in the elastic direction is connected to the inner wall of the locking cavity (14), and the other end of the locking elastic element (72) in the elastic direction is connected to the locking pin (71). The locking elastic element (72) has the tendency to force the locking pin (71) to press against the valve body (2). The valve body (2) has a locking groove (23) for the locking pin (71) to be inserted. The inner wall of the locking groove (23) can press against the locking pin (71) to form a seal.The valve body 2 (2) is connected to a spray nozzle 1 (5) and a spray nozzle 2 (6) at both ends. The inner cavities of the spray nozzle 1 (5) and the spray nozzle 2 (6) are connected to the liquid outlet channel (21). The valve body 1 (1) is rotatably connected in the sealing cavity (22). When the valve body 1 (1) rotates to the position where the connecting hole (13) faces the spray nozzle 1 (5), the connecting hole (13), the sealing cavity (22), the liquid outlet channel (21), and the inner cavity of the spray nozzle 1 (5) are connected in sequence. Multiple locking grooves (23) are provided. The multiple locking grooves (23) are divided into two groups. One group of locking grooves (23) corresponds to the spray nozzle 1 (5) one by one, and the other group of locking grooves (23) corresponds to the spray nozzle 2 (6) one by one. Multiple locking grooves in the same group (23) Surrounding the sealing cavity (22), when the connecting hole (13) faces the first spray nozzle (5), the inner wall of one of the locking grooves (23) corresponding to the first spray nozzle (5) abuts against the locking pin (71) to form a seal; the valve body (2) is provided with a closing groove (24), the inner wall of the closing groove (24) can abut against the locking pin (71) to form a seal, the number of the closing grooves (24) is two, the two closing grooves (24) are distributed at intervals around the axis of the sealing cavity (22), the closing grooves (24) are located between the two sets of locking grooves (23), when the locking pin (71) is embedded in the closing groove (24) to form a seal, the connecting hole (13) faces the sealing cavity (22), the inner wall of the sealing cavity (22) abuts against the outer wall of the valve body (1) to form a seal.

2. A dual-head nozzle according to claim 1, characterized in that: The leak-proof rod (41) includes a sliding part (411) and a sealing part (412). The end of the sliding part (411) is connected to the end of the sealing part (412). A sealing step surface (413) is formed at the connection between the sliding part (411) and the sealing part (412). The end of the sliding part (411) away from the sealing part (412) abuts against the leak-proof elastic member (44). The end of the sealing part (412) away from the sliding part (411) is used to abut against the inner ring wall of the leak-proof ring (42) to form a seal. The leak-proof assembly (4) also includes a leak-proof sealing ring (45). The leak-proof sealing ring (45) is sleeved on the sealing part (412). The leak-proof sealing ring (45) can abut against the sealing step surface (413) and the leak-proof ring (42) to form a seal.

3. A dual-head nozzle according to claim 1, characterized in that: The valve body 2 (2) is connected to a first reinforcing rib (8) and a second reinforcing rib (9). The first reinforcing rib (8) is located between the first injection nozzle (5) and the locking groove (23) corresponding to the first injection nozzle (5). The second reinforcing rib (9) is located between the second injection nozzle (6) and the locking groove (23) corresponding to the second injection nozzle (6).

4. A dual-head nozzle according to claim 1, characterized in that: A sealing ring (3) is fitted on the valve body (1). The inner ring wall of the sealing ring (3) abuts against the outer wall of the valve body (1) to form a seal, and the outer ring wall of the sealing ring (3) abuts against the inner wall of the sealing cavity (22) to form a seal.

5. A manufacturing process for a dual-head nozzle, characterized in that: The method for producing a dual-head nozzle as described in claim 1 includes the following steps: installing valve body one (1) and valve body two (2), sequentially performing hot stamping, finishing and cleaning on valve body one (1) and valve body two (2), embedding the end of valve body one (1) into the sealing cavity (22) on valve body two (2) to achieve the connection between valve body one (1) and valve body two (2); installing locking assembly (7), after cleaning, embedding the locking elastic element (72) into the locking cavity (14) on valve body one (1), and embedding the locking pin (71) into the locking cavity (14) after finishing and cleaning, and the locking elastic element (72) elastically drives... The locking pin (71) abuts against the inner wall of the locking groove (23) to form a seal; the anti-leakage component (4) is installed by inserting the anti-leakage rod (41), the anti-leakage elastic element (44) and the anti-leakage screw (43) into the liquid inlet channel (12) on the valve body (1) after the anti-leakage rod (41), the anti-leakage elastic element (44) and the anti-leakage screw (43) are screwed and fixed to the inner wall of the liquid inlet channel (12); the spray nozzle one (5) and the spray nozzle two (6) are installed by first gold processing and then cleaning the spray nozzle one (5) and the spray nozzle two (6), and the cleaned spray nozzle one (5) and the spray nozzle two (6) are installed on the valve body (2).

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