Telescopic water pipe with changeable water pressure

Abstract

The telescopic water pipe with the changeable water pressure comprises a pipe body and a connector installed at the end of the pipe body, a valve body is arranged between the pipe body and the connector, the water pressure of water flow passing through is increased or reduced through the valve body, the valve body is detachably connected, and a user can install or detach the valve body for use; the valve body comprises a pressurization mode and a pressure reduction mode, the valve body is positively installed in the pressurization mode, the water pressure is increased when water flow passes through the valve body, and when the water pressure is too small, the valve body can be positively installed for increasing the water pressure of water outlet of the water pipe; in a pressure reduction mode, the valve body can be reversely mounted when the water pressure is too high; when the water pressure is enough, the valve body does not need to be used for pressurization or decompression, the valve body can be detached, different modes can be switched according to the use requirements of users for different water pressures, the multifunctional water pressure regulating valve has multiple functions, and the good use experience of the users is met.

Description

Technical Field

[0001] The invention relates to the field of water pipes, in particular to a telescopic water pipe with changeable water pressure. Background Art

[0002] Water pipes, a kind of pipe for water supply and circulation, are common items in people's daily life. Since most faucets are installed in fixed locations and the water outlet position cannot be changed, the faucets are connected to water pipes for use. In order to meet people's different needs for water pipes, water pipes on the market are of different lengths. When washing items in the sink, you need to use a shorter water pipe; when you need to use water to wash the ground, cars and other items that are not easy to move, you need to use a longer water pipe to connect the faucet and wash with the water pipe. In order to facilitate use and storage, telescopic water pipes have been invented on the market.

[0003] The water pressure is usually constant, and the existing telescopic water pipes cannot change the water pressure according to the different usage requirements of users, and the user experience is relatively general. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a telescopic water pipe with variable water pressure. In order to solve the above technical problems, the present invention provides the following technical solutions.

[0005] A telescopic water pipe with variable water pressure comprises a pipe body and a joint installed at the end of the pipe body, a detachable valve body is arranged between the pipe body and the joint, and the water pressure of the water flowing through the valve body is increased or decreased, and the valve body comprises a pressure-increasing mode and a pressure-reducing mode.

[0006] In boost mode, water flows through the forward-mounted valve body and the water pressure increases;

[0007] In pressure reducing mode, water flows through the reverse mounted valve body and the water pressure is reduced.

[0008] Furthermore, the valve body includes a plurality of connectable pressure-changing valves, a connecting portion is provided between every two pressure-changing valves, and the water flows into the valve body through the joint and passes through each pressure-changing valve in turn, and the water pressure increases or decreases each time the water flows through a pressure-changing valve.

[0009] Furthermore, the pressure-changing valve comprises a shell and a first pressure-changing valve and a second pressure-changing valve located in the shell, and the second pressure-changing valve is inversely connected to the first pressure-changing valve and is interconnected.

[0010] Furthermore, the first pressure-changing valve includes a first water inlet, a first water inlet channel extending forward from the first water inlet, a first annular channel extending toward one side from the first water inlet, and a first pressure-changing channel extending forward from the end of the first annular channel and connected to the first water inlet channel; the second pressure-changing valve includes a second water inlet, a second water inlet channel extending forward from the second water inlet, a second annular channel extending toward one side from the second water inlet, and a second pressure-changing channel extending forward from the end of the second annular channel and connected to the second water inlet channel; the end of the first water inlet channel is connected to the second water inlet, and water flows into the first water inlet channel at the first water inlet, and at the same time forms a diversion and enters the first annular channel, and the water in the first annular channel forms a backflow and re-merges into the first water inlet channel through the first pressure-changing channel, forming a pressurized or depressurized flow into the second water inlet.

[0011] Furthermore, a guide portion is provided at the connection between the first annular channel and the first water inlet channel and the first pressure-changing channel, and a guide portion is also provided at the connection between the second annular channel and the second water inlet channel and the second pressure-changing channel.

[0012] Furthermore, the connection portion includes a threaded connection portion, and every two pressure-changing valves are detachably connected by means of threads.

[0013] Furthermore, the connection portion includes a snap connection portion, and every two pressure-changing valves are detachably connected by snap connection.

[0014] Furthermore, the tube body includes an inner telescopic tube and an outer telescopic tube, the outer telescopic tube is wrapped around the outside of the inner telescopic tube, the inner telescopic tube is composed of a plurality of corrugated tubes and a plurality of elastic rubber layers combined along the longitudinal direction, the bellows and the rubber layer are integrally formed, the bellows are separated along the longitudinal direction, and the rubber layer is located at the intervals where the bellows are separated.

[0015] Furthermore, the corrugated tube includes a plastic corrugated tube, and the rubber layer includes an elastic plastic rubber layer and a latex rubber layer.

[0016] Furthermore, the inner surface of the outer telescopic tube is provided with a lower corrugated surface, and the outer surface of the inner telescopic tube is provided with an upper corrugated surface adapted to the lower corrugated surface.

[0017] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0018] The valve body of the present invention comprises a pressurization mode and a decompression mode. In the pressurization mode, the valve body is installed in a forward direction, and the water pressure of water flowing through the valve body increases. When the water pressure is too low, the valve body can be installed in a forward direction to increase the water pressure of water outlet from the water pipe. In the decompression mode, when the water pressure is too high, the valve body can be installed in a reverse direction. The valve body is detachably connected, and when the water pressure is sufficient, there is no need to use the valve body for pressurization or decompression. The valve body is detachable. The present invention can switch between different modes according to the user's different usage requirements for water pressure, and can switch between different modes according to the user's different usage requirements for water pressure. It is relatively simple and convenient to use, has many functions, meets the versatility of user use, and provides a good user experience.

[0019] The valve body is composed of several pressure-changing valves. Every time the water flows through a pressure-changing valve, the corresponding water pressure will increase or decrease. Therefore, the pressure-increasing performance or pressure-reducing performance of the valve body can be controlled by the number of spliced ​​pressure-changing valves. The user can actively adjust the pressure-changing performance of the valve body according to the water pressure conditions, which is very practical.

[0020] The tube body includes an inner telescopic tube and an outer telescopic tube. The inner telescopic tube includes a plurality of corrugated tubes and a plurality of elastic rubber layers combined in the longitudinal direction. The corrugated tube is separated and disconnected in the longitudinal direction. The rubber layer is located at the intervals where the corrugated tube is separated and disconnected, which improves the retractability of the inner telescopic tube, enhances the inner layer's resistance to bursting, reduces the possibility of bursting under water pressure, and improves the adhesion strength of the inner and outer layer materials. Through a variety of structures, such as a combination of waves and solids, the service life of the water pipe is improved while enhancing the telescopic performance of the water pipe. Traditional water pipes are usually made of corrugated tubes throughout, and are prone to breakage when the water pressure is too high. The inner telescopic tube of the present design is composed of a corrugated tube and a rubber layer. Since the stress that the rubber layer can withstand and its own elasticity can produce a large deformation, when the water pressure is too high, the inner telescopic tube can expand more, which can effectively prevent the water pipe from breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a side view of the present invention.

[0022] Figure 2 for Figure 1 A partial cross-sectional view of .

[0023] Figure 3 It is a cross-sectional view of the present invention.

[0024] Figure 4 It is a schematic diagram of the boost mode of the present invention.

[0025] Figure 5 It is a schematic diagram of the decompression mode of the present invention.

[0026] Figure 6 For the purpose of illustrating the present invention Figure 1 .

[0027] Figure 7 For the purpose of illustrating the present invention Figure 2 .

[0028] Figure 8 For the purpose of illustrating the present invention Figure 3 .

[0029] Fig. 9 It is a cross-sectional view of the tube body of the present invention.

[0030] Fig.10 It is a schematic diagram of the tube body of the present invention.

[0031] Fig.11 The connector of the present invention is shown in FIG. Figure 1 .

[0032] Fig.12 The connector of the present invention is shown in FIG. Figure 2 .

[0033] Fig.13 The connector of the present invention is shown in FIG. Figure 3 .

[0034] Fig.14 The connector of the present invention is shown in FIG. Figure 4 .

[0035] Figure numerals: 1. tube body, 2. joint, 3. valve body, 4. connecting part, 5. shell, 6. pressure-changing valve, 7. first pressure-changing valve, 8. second pressure-changing valve, 9. first water inlet, 10. first water inlet channel, 11. first annular channel, 12. first pressure-changing channel, 13. second water inlet, 14. second water inlet channel, 15. second annular channel, 16. second pressure-changing channel, 17. guide part, 18. inner telescopic tube, 19. outer telescopic tube, 20. bellows, 21. rubber layer, 22. lower corrugated surface, 23. upper corrugated surface, 24. locking piece. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] like Figure 1-14As shown, a telescopic water pipe with variable water pressure includes a pipe body 1 and a joint 2 installed at the end of the pipe body 1. The joint 2 is used to be installed on a faucet. A valve body 3 is arranged between the pipe body 1 and the joint 2. The water pressure of the water flowing through the valve body 3 is increased or decreased to achieve pressure change of the water pipe. The valve body 3 is detachably connected to the pipe body 1 and the joint 2. The valve body 3 includes a boosting mode and a decompression mode. When the water pressure of the outlet water is too low, the boosting mode can be used to increase the water pressure of the outlet water of the water pipe, which can be used for washing cars, washing the ground, etc.; when the water pressure of the outlet water is too high, the decompression mode can be switched to wash hands and dishes in the sink, etc. In the boosting mode, the valve body 3 is installed forward, and the water pressure increases when the water flows through the valve body 3, which is used to increase the water pressure of the outlet water of the water pipe; in the decompression mode, when the water pressure is too high, the valve body 3 can be installed in the reverse direction to reduce the water pressure of the outlet water of the water pipe; when the water pressure of the outlet water of the faucet is sufficient for the user, the valve body 3 is not needed, and the valve body can be detached, and the water pipe 1 and the joint 2 are used alone. The present invention can switch between different modes according to different water pressure usage requirements of users, is relatively simple and convenient to use, has many functions, meets the versatility of user use, and provides a good user experience.

[0038] The valve body 3 includes a plurality of connectable pressure-changing valves 6. Water flows into the valve body 3 through the joint 2 and passes through each pressure-changing valve 6 in turn. When the valve body 3 is installed in the forward direction, the water pressure increases each time the water flows through a pressure-changing valve 6. When the valve body 3 is installed in the reverse direction, the water pressure decreases each time the water flows through a pressure-changing valve 6. Therefore, the pressure-increasing or pressure-reducing performance of the valve body 3 can be adjusted by the number of connected pressure-changing valves 6. The user can actively adjust the pressure-changing performance of the valve body 3 according to the water pressure conditions, and the practicability is strong.

[0039] The pressure-changing valve 6 includes a shell 5 and a first pressure-changing valve 7 and a second pressure-changing valve 8 installed in the shell 5. The second pressure-changing valve 8 is opposite to the first pressure-changing valve 7, and the head end of the first pressure-changing valve 7 is connected to the tail end of the second pressure-changing valve 8. The two are interconnected. Water flows from the first pressure-changing valve 7 of one of the pressure-changing valves 6 into the second pressure-changing valve 8, and then flows into the adjacent first pressure-changing valve 7, and so on. The corresponding water pressure will change each time it passes through a pressure-changing valve 6.

[0040] The first pressure-changing valve 7 comprises a first water inlet 9, a first water inlet channel 10 extending forward from the first water inlet 9, a first annular channel 11 extending toward one side of the first water inlet 9, and a first pressure-changing channel 12 extending forward from the end of the first annular channel 11 and communicating with the end of the first water inlet channel 10;

[0041] The second pressure-changing valve 8 includes a second water inlet 13, a second water inlet channel 14 extending forward from the second water inlet 13, a second annular channel 15 extending toward one side from the second water inlet 13, and a second pressure-changing channel 16 extending forward from the end of the second annular channel 15 and connected to the end of the second water inlet channel.

[0042] In boost mode, Figure 4 As shown, the end of the first water inlet channel 10 is connected to the second water inlet 13, and the water flows into the first water inlet channel 10 at the first water inlet 9. When the water flows through the intersection of the first pressure-changing valve 7 and the second pressure-changing valve 8, two streams are formed, one of which flows into the second water inlet 13, and the other forms a backflow into the first pressure-changing channel 12. The water in the first pressure-changing channel 12 flows into the first annular channel 11 and re-enters the first water inlet channel 10, and promotes the water originally flowing in the first water inlet channel 10, which is used to increase the water pressure flowing from the first pressure-changing valve 7 to the second water inlet 13, and achieves a pressurization effect. Similarly, the water at the second water inlet 13 forms two streams and flows into the second water inlet channel 14 and the second annular channel 15 respectively. The water in the second annular channel 15 flows into the second pressure-changing channel 16 and re-enters the end of the second water inlet channel 14, and promotes the water originally flowing in the second water inlet channel 14, further achieving a pressurization effect, and thus circulates. The pressure-increasing performance of the valve body 3 can be controlled by setting the number of the pressure-changing valves 6.

[0043] Decompression mode, such as Figure 5 As shown, this design is installed in reverse, and the connector 2 at the other end is connected to the faucet. Water enters the first pressure-changing valve 6 from the connector 2. The water flows into two branches at the first water inlet 9 and enters the first water inlet channel 10 and the first pressure-changing channel 12 respectively. The water in the first pressure-changing channel 12 flows back through the first annular channel 11 and re-enters the first water inlet channel 10. Since the refluxed water flows in the opposite direction to the flow direction of the water in the first water inlet channel 10, it acts as a resistance to the normal flow of water in the first water inlet channel 10, reducing the water pressure flowing to the second port. Similarly, the water pressure is further reduced after the water flows through the second pressure-changing valve 8, and the pressure reduction performance can also be adjusted by splicing the number of pressure-changing valves 6.

[0044] The angle between the first water inlet channel 10 and the first pressure-changing channel 12 is 20-35 degrees. If the angle is greater than 35 degrees, the water pressure required for water to flow into the first pressure-changing channel 12 is relatively high, and if the water pressure is relatively low, it may not be able to pass through the first annular channel 11; the water flows downward in the first pressure-changing channel 12 at an angle. If the angle is less than 20 degrees, it is impossible to provide a good downward impact force for the water flow, and the pressure-increasing effect is relatively general. Therefore, the angle between the first water inlet channel 10 and the first pressure-changing channel 12 is most suitable within the range of 20-35 degrees.

[0045] A guide portion 17 is provided at the connection between the first annular channel 11 and the first water inlet channel 10 and the first pressure-changing channel 12. A guide portion 17 is also provided at the connection between the second annular channel 15 and the second water inlet channel 14 and the second pressure-changing channel 16. The guide portion 17 is arc-shaped, which can better guide the backflow of water and help the pressure change.

[0046] The connection part 4 includes a threaded connection part, and two adjacent pressure-changing valves 6 are spliced ​​by threads. When the threads are fully tightened, the first pressure-changing valve 7 is aligned with the second pressure-changing valve 8, and water can flow; the connection part 4 also includes a buckle connection part, and two adjacent pressure-changing valves 6 are spliced ​​by buckling and snapping, which is relatively simple to operate and convenient for users to disassemble or install. Similarly, the connector 2 can also be detachably connected to the valve body 3 by threads or snapping.

[0047] The tube body 1 is sleeved on the outside of the valve body 3, and a locking piece 24 is used to lock the tube body 1 sleeved on the outer surface of the valve body 3 to prevent the tube body 1 from being separated from the valve body 3. The locking method of the locking piece 24 is that the tube body 1 is sleeved on the outer surface of the valve body 3, and a conical plastic part is sleeved on the outer surface of the tube body 1, and then the locking piece 24 is rotated on the plastic part in a threaded manner. The more it rotates, the more the plastic part is squeezed until the tube body 1 is tightly clamped on the valve body 3.

[0048] The tube body 1 includes an inner telescopic tube 18 and an outer telescopic tube 19. The outer telescopic tube 19 is wrapped around the outer side of the inner telescopic tube 18. During use, water flows into the inner telescopic tube 18, and the tube body 1 is expanded and contracted by water pressure. The outer telescopic tube 19 is made of elastic material, and includes a soft rubber outer telescopic tube. During use, the inner telescopic tube 18 and the outer telescopic tube 19 are expanded and contracted synchronously. When water flows into the tube body 1, the tube body 1 is extended by the impact of water pressure. The greater the water pressure, the longer the inner telescopic tube 18 and the outer telescopic tube 19 are extended. The smaller the water pressure, the less the inner telescopic tube 18 and the outer telescopic tube 19 are extended. When water is stopped from being injected into the tube body 1, the water pressure is reduced, and the inner telescopic tube 18 and the outer telescopic tube 19 are retracted by their own resilience. When not in use, the tube body 1 is in a contracted state, with a small size and light weight, which is convenient for users to carry when going out.

[0049] The inner telescopic tube 18 includes a plurality of bellows 20 and a plurality of elastic rubber layers 21 which are combined in the longitudinal direction. The bellows 20 are separated in the longitudinal direction. The rubber layers 21 are located at the intervals where the bellows 20 are separated. A rubber layer 21 is provided between each two sections of the bellows 20. The bellows 20 includes a plastic bellows, which is expanded and contracted by opening a plurality of folds. The rubber layer 21 includes a rubber rubber layer and a latex rubber layer, which has good elasticity and is expanded and contracted by the elasticity of its own material. Conventional water pipes are usually made entirely of bellows. Compared with conventional water pipes, the inner telescopic layer 18 of the present design is composed of a plurality of longitudinal bellows 20 and a rubber layer 21. The rubber layer 21 can withstand stress and its own elasticity, and can produce a relatively large deformation. When the water pressure is too high, the water pipe can expand and become thicker. The rubber layer 21 is less likely to break than the bellows 5, and thus can effectively prevent the water pipe from breaking. The telescopic property of the inner telescopic tube 18 is also improved, the inner layer's resistance to bursting is enhanced, the possibility of bursting under water pressure is reduced, and the adhesion strength of the inner and outer layer materials is increased. Through a variety of structures, such as a combination of waves and solid, the service life of the water pipe is improved while the telescopic performance of the water pipe is enhanced.

[0050] The bellows 20 and the adhesive layer 21 are integrally formed to avoid a connection structure, increase strength, and facilitate production.

[0051] The inner surface of the outer telescopic tube 19 is provided with a lower corrugated surface 22, and the outer surface of the inner telescopic tube 18 is provided with an upper corrugated surface 23 adapted to the lower corrugated surface 22. The upper corrugated surface 23 and the lower corrugated surface 22 fit each other, which can further increase the contact area between the outer telescopic tube 19 and the inner telescopic tube 18, increase the friction force, and make the inner telescopic tube 18 and the outer telescopic tube 19 fit more closely and not easy to separate.

[0052] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference numerals in the claims should not be regarded as limiting the claims involved.

Claims

1. A telescopic water pipe with variable water pressure, comprising a pipe body and a joint installed at the end of the pipe body, characterized in that: A detachable valve body is provided between the pipe body and the joint 1, and the water pressure of the water flowing through the valve body is increased or decreased. The valve body includes a pressure-increasing mode and a pressure-reducing mode. In boost mode, water flows through the forward-mounted valve body and the water pressure increases; In pressure reducing mode, water flows through the reverse mounted valve body and the water pressure is reduced.

2. A telescopic water pipe with variable water pressure according to claim 1, characterized in that: The valve body includes a plurality of connectable pressure-changing valves, a connecting portion is provided between every two pressure-changing valves, and the water flows into the valve body through the joint and passes through each pressure-changing valve in turn, and the water pressure increases or decreases each time it passes through a pressure-changing valve.

3. A telescopic water pipe with variable water pressure according to claim 2, characterized in that: The pressure-changing valve comprises a housing, and a first pressure-changing valve and a second pressure-changing valve located in the housing. The second pressure-changing valve is in reverse communication with the first pressure-changing valve and is in communication with each other.

4. A telescopic water pipe with variable water pressure according to claim 3, characterized in that: The first pressure-changing valve comprises a first water inlet, a first water inlet channel extending forward from the first water inlet, a first annular channel extending toward one side from the first water inlet, and a first pressure-changing channel extending forward from the end of the first annular channel and connected to the first water inlet channel; the second pressure-changing valve comprises a second water inlet, a second water inlet channel extending forward from the second water inlet, a second annular channel extending toward one side from the second water inlet, and a second pressure-changing channel extending forward from the end of the second annular channel and connected to the second water inlet channel; The end of the first water inlet channel is connected to the second water inlet, and water flows into the first water inlet channel at the first water inlet, and at the same time forms a diversion to enter the first annular channel. The water in the first annular channel forms a reflux and re-enters the first water inlet channel through the first pressure-changing channel, forming a pressurized or depressurized flow into the second water inlet.

5. A telescopic water pipe with variable water pressure according to claim 4, characterized in that: A guide portion is provided at the connection between the first annular channel and the first water inlet channel and the first pressure-changing channel, and a guide portion is also provided at the connection between the second annular channel and the second water inlet channel and the second pressure-changing channel.

6. A telescopic water pipe with variable water pressure according to claim 2, characterized in that: The connection part comprises a threaded connection part, and every two pressure-changing valves are detachably connected by means of threads.

7. The telescopic water pipe with variable water pressure according to claim 1, characterized in that: The connection portion comprises a snap connection portion, and every two pressure-changing valves are detachably connected by snap connection.

8. The telescopic water pipe with variable water pressure according to claim 1, characterized in that: The tube body includes an inner telescopic tube and an outer telescopic tube, wherein the outer telescopic tube is wrapped around the outer side of the inner telescopic tube, and the inner telescopic tube is composed of a plurality of corrugated tubes and a plurality of elastic rubber layers combined along the longitudinal direction, the corrugated tube and the rubber layer are integrally formed, and the corrugated tube is separated and disconnected along the longitudinal direction, and the rubber layer is located at the interval where the corrugated tube is separated and disconnected.

9. The telescopic water pipe with variable water pressure according to claim 7, characterized in that: The corrugated pipe comprises a plastic corrugated pipe, and the adhesive layer comprises an elastic plastic adhesive layer and a latex adhesive layer.

10. The telescopic water pipe with variable water pressure according to claim 7, characterized in that: The inner surface of the outer telescopic tube is provided with a lower corrugated surface, and the outer surface of the inner telescopic tube is provided with an upper corrugated surface adapted to the lower corrugated surface.

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