Stepless pressure reduction and constant pressure adjusting device

Abstract

The utility model discloses a stepless pressure reduction and constant pressure adjusting device, which comprises a water inlet structure and a mounting seat connected with the water inlet structure, and is characterized in that a pressure reduction and constant pressure module is arranged on the mounting seat, and a first connecting part and a second connecting part are arranged between the water inlet structure and the mounting seat; wherein the water inlet structure and the mounting seat form a channel for fluid input through a first connecting part and a second connecting part, the water inlet structure comprises a water inlet end shell and a one-way valve shell arranged in the water inlet end shell, and the pressure reduction and constant pressure module comprises a fluid pressure reduction adjusting mechanism and a fluid constant pressure adjusting mechanism. Water pressure is manually and automatically adjusted in a stepless mode, the stability of the water pressure can be greatly improved, the water pressure adjusting precision is greatly improved through the structure, the reliability is higher, and the function is more powerful.

Description

Technical Field

[0001] This utility model relates to the field of intelligent toilet technology, specifically to a stepless pressure reduction and constant pressure regulating device. Background Technology

[0002] Smart toilets were initially developed for medical and elderly care purposes. Their hygiene functions can effectively reduce anal diseases in all population groups and bacterial infections in the female genital area, significantly reducing the incidence of gynecological and anorectal diseases. Smart toilets have many special functions, such as bidet functions, genital cleansing, movable cleansing, heated seat, warm air drying, automatic deodorization, and silent seating. Each function requires a corresponding structure for support. For example, bidet functions, genital cleansing, and toilet flushing require water pressure adjustment after water enters the valve body before spraying.

[0003] For example, a Chinese utility model patent discloses a flushing mechanism for an intelligent toilet. This flushing mechanism is controlled by an electromagnetic valve and can achieve normal spraying function. However, due to the high pressure of tap water, if there is no structure to regulate the flow or if the valve body malfunctions, the water pressure entering the pipe will be too high, which can easily damage other intelligent components in the pipe and result in poor safety. Furthermore, the low precision and poor reliability of existing water pressure regulating valve bodies also need urgent improvement. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a stepless pressure reduction and constant pressure regulating device, which can effectively solve the problems mentioned in the background technology.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A stepless pressure reducing and constant pressure regulating device includes a water inlet structure and a mounting base connected to the water inlet structure. The mounting base is provided with a pressure reducing and constant pressure module. A first connecting part and a second connecting part are provided between the water inlet structure and the mounting base. The water inlet structure and the mounting base form a channel for fluid input through the first connecting part and the second connecting part. The water inlet structure includes a water inlet end housing and a one-way valve housing disposed in the water inlet end housing. The pressure reducing and constant pressure module includes a fluid pressure reducing regulating mechanism and a fluid constant pressure regulating mechanism.

[0007] The fluid pressure reducing and regulating mechanism includes a primary regulating valve seat and a pressure reducing and regulating module. The fluid constant pressure regulating mechanism includes a secondary regulating valve seat and a constant pressure regulating module. Both the pressure reducing and regulating module are equipped with a fluid control structure for controlling water pressure. The secondary regulating valve seat is equipped with a drive component connected to the constant pressure regulating module.

[0008] As a further description of the above technical solution, the first connecting part includes a trapezoidal connecting block, the second connecting part includes a connecting piece, the connecting block and the mounting base are integrally formed, the connecting piece is welded to the water inlet end housing, and the connecting piece is fixed to the connecting block by bolts, and both the water inlet end housing and the mounting base are provided with water inlets.

[0009] As a further description of the above technical solution, the one-way valve housing is provided with a sealing element and a check element in sequence inside. The sealing element includes a first sealing ring, and the check element includes a valve cover, a spring, and a plug. The one-way valve housing and the water inlet housing are coaxially arranged.

[0010] As a further description of the above technical solution, the primary regulating valve seat and the secondary regulating valve seat are symmetrically arranged on the mounting base, and both the primary regulating valve seat and the secondary regulating valve seat are integrally formed with the mounting base, wherein the primary regulating valve seat and the secondary regulating valve seat are provided with threaded structures for adjustment.

[0011] As a further description of the above technical solution, the pressure reducing adjustment module and the first-stage regulating valve seat have an active clearance. The pressure reducing adjustment module is provided with a first threaded part. The pressure reducing adjustment module is coaxially arranged in the first-stage regulating valve seat and is threadedly connected to the first-stage regulating valve seat. The upper end of the pressure reducing adjustment module is provided with a cross groove. After being manually rotated through the cross groove, the pressure reducing adjustment module moves along the axial direction of the first-stage regulating valve seat.

[0012] As a further description of the above technical solution, the constant pressure regulating module and the secondary regulating valve seat have an active clearance, the constant pressure regulating module is provided with a second threaded part, the pressure reducing regulating module is coaxially arranged in the secondary regulating valve seat, and the constant pressure regulating module is threadedly connected to the secondary regulating valve seat. The constant pressure regulating module moves along the axial direction of the secondary regulating valve seat by a driving member, wherein the driving member is fixed on the secondary regulating valve seat by a fixing member.

[0013] As a further description of the above technical solution, the fluid control structure includes multiple compression springs, pressure plates, valve body rear cover, valve body bottom cover, second sealing ring, diaphragm, anti-loosening nut and valve core corresponding to the pressure reducing adjustment module and the constant pressure adjustment module. The valve core passes through the compression spring in a coaxial manner and is correspondingly connected to the pressure reducing adjustment module and the constant pressure adjustment module. The valve body rear cover and valve body bottom cover are both connected to the mounting base through the second sealing ring.

[0014] As a further description of the above technical solution, the driving component includes a motor and a drive shaft. The motor has a built-in control motherboard, and the drive shaft is connected to the constant pressure regulating module. The fixing component includes a fixing frame with a fixing groove that fits the shape of the motor. The fixing frame is fixed to the secondary regulating valve seat by screws.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The stepless pressure reducing and constant pressure regulating device of this utility model has at least one of the following beneficial effects during use:

[0017] Water flows sequentially from the inlet structure to the fluid pressure reducing and regulating mechanism and the fluid constant pressure regulating mechanism. The water pressure is reduced and kept constant by the two main mechanisms. The regulation method adopts stepless regulation. The first-stage regulating valve seat is adjusted manually. The manual adjustment of the first-stage pressure reducing valve regulating module controls the valve opening size by moving the regulating module through the threaded structure. The second-stage regulating valve seat is adjusted by the motor-driven regulating module. After receiving the information transmitted by the flow meter, the main board controls the motor to fine-tune the water pressure according to the flow meter parameters. It can stably regulate the water pressure. This structure greatly improves the water pressure regulation accuracy, enhances reliability, and makes the function more powerful. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the combined structure of a stepless pressure reducing and constant pressure regulating device.

[0019] Figure 2 This is a schematic diagram of the water inlet structure of a stepless pressure reducing and constant pressure regulating device.

[0020] Figure 3 This is a schematic diagram of the first exploded structure of the water inlet shell of a stepless pressure reducing and constant pressure regulating device of this utility model;

[0021] Figure 4 This is a schematic diagram of the second exploded structure of the inlet shell of a stepless pressure reducing and constant pressure regulating device.

[0022] Figure 5 This is a schematic diagram of the first exploded structure of the pressure reduction and constant pressure adjustment module of the stepless pressure reduction and constant pressure regulating device of this utility model.

[0023] Figure 6 This is a schematic diagram of the second exploded structure of the pressure reduction and constant pressure regulating module of the stepless pressure reduction and constant pressure regulating device of this utility model.

[0024] Numbering on the map:

[0025] 1. Water inlet structure; 101. Seal; 102. Check valve; 103. First sealing ring; 104. Valve cover; 105. Spring; 106. Plug; 107. One-way valve body; 108. Water inlet end body; 2. Pressure reducing and constant pressure module; 201. First connecting part; 202. Second connecting part; 3. Mounting base; 301. Drive component; 302. Fixing component; 303. Motor; 304. Compression spring; 305. Pressure plate; 306. Valve body rear cover; 307. Second sealing ring; 308. Valve core; 309. Diaphragm; 310. Valve body bottom cover; 4. Fluid pressure reducing and regulating mechanism; 401. Primary regulating valve seat; 402. Pressure reducing and regulating module; 5. Fluid constant pressure regulating mechanism; 501. Secondary regulating valve seat; 502. Constant pressure regulating module. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figure 1-6 As shown, this utility model provides a stepless pressure reducing and constant pressure regulating device, including a water inlet structure 1 and a mounting base 3 connected to the water inlet structure 1. The mounting base 3 is provided with a pressure reducing and constant pressure module 2. A first connecting part 201 and a second connecting part 202 are provided between the water inlet structure 1 and the mounting base 3. The water inlet structure 1 and the mounting base 3 form a channel for fluid input through the first connecting part 201 and the second connecting part 202. The water inlet structure 1 includes a water inlet end housing 108 and a one-way valve housing 107 disposed in the water inlet end housing 108. The pressure reducing and constant pressure module 2 includes a fluid pressure reducing regulating mechanism 4 and a fluid constant pressure regulating mechanism 5.

[0028] In this embodiment, when water flows sequentially from the inlet structure 1 into the fluid pressure reducing and regulating mechanism 4 and the fluid constant pressure regulating mechanism 5, the water pressure is reduced and kept constant by the two mechanisms. The regulation method adopts stepless regulation. The first-stage regulating valve seat 401 is adjusted manually. The first-stage pressure reducing valve regulating module is manually adjusted. The displacement of the regulating module is driven by the threaded structure to control the opening and closing of the valve port. The second-stage regulating valve seat 501 is adjusted by the regulating module driven by the motor 303. After receiving the information transmitted by the flow meter, the main board controls the motor 303 to fine-tune the water pressure according to the parameters of the flow meter. It can stably regulate the water pressure. This structure greatly improves the water pressure regulation accuracy, has stronger reliability, and more powerful functions.

[0029] The fluid pressure reducing and regulating mechanism 4 includes a primary regulating valve seat 401 and a pressure reducing and regulating module 402. The fluid constant pressure regulating mechanism 5 includes a secondary regulating valve seat 501 and a constant pressure regulating module 502. Both the pressure reducing and regulating module 402 and the constant pressure regulating module 502 are provided with fluid control structures for controlling water pressure. The secondary regulating valve seat 501 is provided with a drive component 301 connected to the constant pressure regulating module 502.

[0030] The primary regulating valve seat 401 employs mechanical stepless manual pressure regulation. The primary pressure reducing valve regulating module is manually adjusted, and its displacement, driven by a threaded structure, controls the valve opening, thereby regulating the water pressure within the valve to 0.12-0.15 MPa. This requires the valve body to withstand a water pressure impact of 0.8 MPa.

[0031] The secondary regulating valve seat 501 is a stepless regulating constant pressure valve powered by motor 303. Motor 303 is an N20 horizontal geared motor. Its built-in mainboard receives information from the flow meter and controls the motor 303 to fine-tune the water pressure according to the flow meter parameters, stabilizing the water pressure to 0.12-0.15 MPa. The rotation of motor 303 drives the regulating module to control the opening and closing of the valve. When the valve is fully depressed, the water circuit is closed. The valve body must be able to withstand a water pressure impact of 0.8 MPa.

[0032] Furthermore, the first connecting part 201 includes a trapezoidal connecting block, and the second connecting part 202 includes a connecting piece. The connecting block and the mounting base 3 are integrally formed. The connecting piece is welded to the water inlet housing 108 and is fixed to the connecting block by bolts. Both the water inlet housing 108 and the mounting base 3 are provided with water inlets.

[0033] The first connecting part 201 and the second connecting part 202 adopt a quick-release interface, which is convenient for disassembly and assembly.

[0034] When water flows through the inlet housing 108, a check valve is installed inside, allowing water to flow in only one direction. When there is no inlet water pressure, the check valve closes to prevent water from flowing back into the module.

[0035] Furthermore, the one-way valve housing 107 is provided with a sealing element 101 and a check element 102 in sequence inside. The sealing element 101 includes a first sealing ring 103, and the check element 102 includes a valve cover 104, a spring 105, and a plug 106. The one-way valve housing 107 is coaxially arranged with the water inlet housing 108.

[0036] Furthermore, the primary regulating valve seat 401 and the secondary regulating valve seat 501 are symmetrically arranged on the mounting base 3, and both the primary regulating valve seat 401 and the secondary regulating valve seat 501 are integrally formed with the mounting base 3. The primary regulating valve seat 401 and the secondary regulating valve seat 501 are provided with threaded structures for adjustment.

[0037] Furthermore, the pressure reducing adjustment module 402 and the first-stage regulating valve seat 401 have an movable gap. The pressure reducing adjustment module 402 is provided with a first threaded portion. The pressure reducing adjustment module 402 is coaxially disposed within the first-stage regulating valve seat 401 and is threadedly connected to the first-stage regulating valve seat 401. The upper end of the pressure reducing adjustment module 402 is provided with a cross groove. After being manually rotated through the cross groove, the pressure reducing adjustment module 402 moves along the axial direction of the first-stage regulating valve seat 401.

[0038] Furthermore, the constant pressure regulating module 502 and the secondary regulating valve seat 501 have an movable gap. The constant pressure regulating module 502 is provided with a second threaded portion. The pressure reducing regulating module 402 is coaxially disposed within the secondary regulating valve seat 501. The constant pressure regulating module 502 and the secondary regulating valve seat 501 are threadedly connected. The constant pressure regulating module 502 moves along the axial direction of the secondary regulating valve seat 501 via a driving member 301. The driving member 301 is fixed to the secondary regulating valve seat 501 by a fixing member 302.

[0039] Furthermore, the fluid control structure includes multiple springs 304, pressure plates 305, valve body rear cover 306, valve body bottom cover 310, second sealing rings 307, diaphragms 309, anti-loosening nuts, and valve cores 308 that are correspondingly connected to the pressure reducing adjustment module 402 and the constant pressure adjustment module 502. The valve core 308 passes through the springs 304 in a coaxial manner and is correspondingly connected to the pressure reducing adjustment module 402 and the constant pressure adjustment module 502. The valve body rear cover 306 and the valve body bottom cover 310 are both connected to the mounting base 3 through the second sealing rings 307.

[0040] Furthermore, the driving component 301 includes a motor 303 and a drive shaft. The motor 303 has a built-in control motherboard. The drive shaft is connected to the constant pressure regulating module 502. The fixing component 302 includes a fixing frame. The fixing frame has a fixing groove that fits the shape of the motor 303. The fixing frame is fixed to the secondary regulating valve seat 501 by screws.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A stepless pressure reducing and constant pressure regulating device, comprising a water inlet structure and a mounting base connected to the water inlet structure, characterized in that, The mounting seat is provided with a pressure reducing and constant pressure module, the water inlet structure is provided with a first connecting part and a second connecting part between the water inlet structure and the mounting seat, the water inlet structure and the mounting seat form a channel for fluid input through the first connecting part and the second connecting part, the water inlet structure comprises a water inlet end shell and a one-way valve shell arranged in the water inlet end shell, the pressure reducing and constant pressure module comprises a fluid pressure reducing adjusting mechanism and a fluid constant pressure adjusting mechanism; The fluid pressure reducing adjusting mechanism comprises a primary adjusting valve seat and a pressure reducing adjusting module, the fluid constant pressure adjusting mechanism comprises a secondary adjusting valve seat and a constant pressure adjusting module, the pressure reducing adjusting module and the constant pressure adjusting module are provided with a fluid control structure for controlling water pressure, and the secondary adjusting valve seat is provided with a driving member connected with the constant pressure adjusting module.

2. A stepless pressure reducing and constant pressure regulating device according to claim 1, characterized in that: The first connecting part comprises a trapezoidal connecting block, the second connecting part comprises a connecting sheet, the connecting block is integrally formed with the mounting seat, the connecting sheet is welded on the water inlet end shell, and the connecting sheet is fixed on the connecting block through bolts, and the water inlet end shell and the mounting seat are both provided with a water inlet.

3. A stepless pressure reducing and constant pressure regulating device according to claim 1, characterized in that: The one-way valve shell is sequentially provided with a sealing member and a check member inside, the sealing member comprises a first sealing rubber ring, the check member comprises a valve cover, a spring and a plug, and the one-way valve shell is coaxially arranged with the water inlet end shell.

4. A stepless pressure reducing and constant pressure regulating device according to claim 1, characterized in that: The primary adjusting valve seat and the secondary adjusting valve seat are symmetrically arranged on the mounting seat, and the primary adjusting valve seat and the secondary adjusting valve seat are integrally formed with the mounting seat, wherein the primary adjusting valve seat and the secondary adjusting valve seat are provided with a threaded structure for adjusting.

5. A stepless pressure reducing and constant pressure regulating device according to claim 1, characterized in that: The pressure reducing adjusting module has an active gap with the primary adjusting valve seat, the pressure reducing adjusting module is provided with a first threaded part, the pressure reducing adjusting module is coaxially arranged in the primary adjusting valve seat, and the pressure reducing adjusting module is threadedly connected with the primary adjusting valve seat, the pressure reducing adjusting module is provided with a cross groove at the upper end, and the pressure reducing adjusting module moves along the axis direction of the primary adjusting valve seat after being manually rotated through the cross groove.

6. A stepless pressure reducing and constant pressure regulating device according to claim 1, wherein: The constant pressure adjusting module has an active gap with the secondary adjusting valve seat, the constant pressure adjusting module is provided with a second threaded part, the pressure reducing adjusting module is coaxially arranged in the secondary adjusting valve seat, and the constant pressure adjusting module is threadedly connected with the secondary adjusting valve seat, the constant pressure adjusting module moves along the axis direction of the secondary adjusting valve seat through the driving member, and the driving member is fixed on the secondary adjusting valve seat through a fixing member.

7. A stepless pressure reducing and constant pressure regulating device according to claim 1, wherein: The fluid control structure comprises a plurality of pressure springs, pressure sheets, valve body rear covers, valve body bottom covers, second sealing rubber rings, diaphragms, lock nuts and valve cores corresponding to the pressure reducing adjusting module and the constant pressure adjusting module, the valve core passes through the pressure spring and is correspondingly connected with the pressure reducing adjusting module and the constant pressure adjusting module in a coaxial arrangement, and the valve body rear cover and the valve body bottom cover are connected with the mounting seat through the second sealing rubber ring.

8. A stepless pressure reducing and constant pressure regulating device according to claim 6, wherein: The driving member comprises a motor and a driving shaft, the motor is built-in with a control mainboard, the driving shaft is connected with the constant pressure adjusting module, the fixing member comprises a fixing frame, the fixing frame is provided with a fixing groove matched with the shape of the motor, and the fixing frame is fixed on the secondary adjusting valve seat through screws.

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