CN220459170U - Manual water pump of adjustable pressure - Google Patents

Manual water pump of adjustable pressure Download PDF

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Publication number
CN220459170U
CN220459170U CN202321687502.7U CN202321687502U CN220459170U CN 220459170 U CN220459170 U CN 220459170U CN 202321687502 U CN202321687502 U CN 202321687502U CN 220459170 U CN220459170 U CN 220459170U
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cavity
pressure regulating
pressure
water inlet
pipe
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CN202321687502.7U
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Chinese (zh)
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凌宏彦
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Shanghai Qiling Industrial Co ltd
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Shanghai Qiling Industrial Co ltd
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Abstract

The utility model relates to a pressure-adjustable manual water pump. The pressure-adjustable water pump comprises a sealing disc, a guide plate, a pump pipe, a plunger rod, a pressure rod and other structures, wherein a water inlet cavity, a water outlet cavity and a pressure-adjusting cavity are formed between the sealing disc and the guide plate, a pressurizing cavity is formed between the guide plate and the pump pipe, a pressure-adjusting pipe is arranged on the guide plate, a pressure-adjusting stud, a pressure-adjusting spring and a pressure-adjusting plug are arranged in the pressure-adjusting pipe, and a pressure-adjusting water outlet hole is formed in the pressure-adjusting stud. According to the coffee extraction device, the compression length of the pressure regulating spring is adjusted by rotating the pressure regulating stud, so that coffee powder with different grinding degrees or coffee capsules with different types can be extracted by adjusting proper output pressure.

Description

Manual water pump of adjustable pressure
Technical Field
The utility model relates to a pressure-adjustable manual water pump for manually making coffee.
Background
There are two forms of manual pressurized coffee machines on the market that are hot-marketed: one is a single pressurized type, and the other is a constant pressure type.
The single pressurization type manual coffee machine pressurizes the pressurizing cavity by manually pressing the water pump pressing rod, and only a water inlet channel and a water outlet channel are usually arranged on the pressurizing cavity, such as a manual coffee machine disclosed in patent number CN 201711029829.4. The pressurization of such manual coffee machines is not controllable. If the coffee powder particles are too fine or the coffee powder is pressed too tightly, clogging and the like easily occur in the extraction process, and the user still presses too hard without knowledge, resulting in a pressure that greatly exceeds the extraction pressure required for coffee extraction, and the risk of bursting the coffee material seat and damaging the machine is generated.
The constant pressure type coffee machine is added with a pressure relief channel on the basis and protects the coffee machine by setting a fixed pressure relief value, such as a manual pressurizing type coffee machine disclosed in patent number CN 202221089481.4. The pressure relief value is set in such a way that the pressure in the coffee machine remains a single constant value, which is safe without problems, but the pressure cannot be regulated. When coffee powders of different grinding degrees or coffee capsules of different specifications are brewed, the required optimal brewing pressure is different. For example, the brewing of coffee powder normally requires 9 atmospheres, while the brewing of coffee capsules requires 19 atmospheres, at which time the fixed pressure relief water pump does not correspond well.
Thus, a coffee machine that can adjust the proper pressure according to the coffee powder or coffee capsule of different situations is an urgent problem to be solved.
Disclosure of Invention
In order to achieve the technical purpose, the application provides the pressure-adjustable water pump which is capable of adjusting pressure when facing different types of coffee or coffee capsules, and is high in applicability and good in brewing taste.
In order to achieve the technical purpose, the application adopts the following technical scheme:
a pressure adjustable manual water pump comprising: the upper surface of the sealing disc is provided with a plug moving cavity; a lower water inlet cavity communicated with the plug moving cavity; a penetrating lower water outlet cavity; a lower pressure regulating chamber; wherein a water outlet pipe is arranged in the lower water outlet cavity; the guide plate, it locates on the seal dish, wherein: an upper water inlet cavity, a penetrating upper water outlet cavity and an upper pressure regulating cavity are formed on the lower surface of the guide plate, and the upper water inlet cavity and the lower water inlet cavity form an independent water inlet cavity; the upper water outlet cavity and the lower water outlet cavity form an independent water outlet cavity, and the upper pressure regulating cavity and the lower pressure regulating cavity form an independent pressure regulating cavity; a water outlet plug and a water outlet spring are arranged in the water outlet cavity, and the water outlet spring is positioned between the water outlet plug and the water outlet pipe; the guide plate is also provided with a through water inlet pipe, a pressure regulating pipe, a water inlet hole, a water inlet channel, a water outlet hole, a pressure regulating channel and a pressure regulating hole, wherein the bottom of the water inlet pipe is correspondingly communicated with the upper part of the plug moving cavity; the bottom of the water inlet hole is communicated with the water inlet cavity; the water inlet hole is communicated with the water inlet channel; the pressure regulating channel is communicated with the pressure regulating hole; the bottom of the pressure regulating hole is communicated with the pressure regulating cavity; the water outlet hole is arranged at the top of the upper water outlet cavity and communicated with the water outlet cavity in a matching way; a water inlet plug is arranged in the water inlet pipe and the plug moving cavity, and the water inlet plug moves up and down in the water inlet pipe and the plug moving cavity to plug or release the pipe orifice of the water inlet pipe; the inner wall of the pressure regulating pipe is provided with an internal thread, the pressure regulating pipe is communicated with the pressure regulating cavity, the pressure regulating pipe is provided with a pressure regulating plug, the pressure regulating plug is provided with a pressure regulating spring and a pressure regulating stud sleeved outside the pressure regulating spring, the pressure regulating stud is provided with an external thread, and the pressure regulating stud and the pressure regulating pipe are matched to regulate the length of the pressure regulating spring so as to regulate the pressure; the pressure regulating stud is provided with a pressure regulating water outlet hole; the pump line, it comprises integrated into one piece's bottom plate and locate the circular passageway of run-through in the middle of the bottom plate, wherein: the two sides of the bottom plate are provided with water inlet pipe and pressure regulating pipe mounting holes, and the water inlet pipe and the pressure regulating pipe penetrate through the mounting holes on the two sides of the pump pipe. The circular channel is arranged above the water outlet hole and forms a pressurizing cavity with the sealing disc, and the pressurizing cavity is communicated with the water inlet channel and the pressure regulating channel; a plunger rod is sealed in the circular channel through a first sealing ring; the compression bar is sleeved on the outer side surface of the circular channel, a compression bar spring is arranged between the compression bar and the circular channel, the compression bar is connected with the top end of the plunger rod, and the compression bar drives the plunger rod to move up and down along the inner cavity of the circular channel.
Preferably, the sealing disc is provided with a plurality of studs, the corresponding guide plate is provided with stud through holes, the bottom plate of the pump pipe is correspondingly provided with screw holes, the studs sequentially penetrate through the corresponding screw hole through holes, and the studs are screwed with the screw holes through screws.
Preferably, the pump plunger is fixedly connected with the compression bar through a screw.
Preferably, the circular channel is formed by sleeving the outer pump pipe and the inner lining pipe, a step is arranged on the upper end face in the outer pump pipe, the upper end of the first sealing ring is in sealing butt joint with the lower part of the step, and the upper end of the inner lining pipe is in sealing butt joint with the lower end of the first sealing ring.
Preferably, a central boss is formed on the upper surface of the guide plate, the water inlet hole, the water outlet hole and the pressure regulating hole are all positioned in the central boss, and a second sealing ring is arranged on the outer side of the central boss, so that the guide plate is kept sealed when being connected with the bottom plate of the pump pipe.
Preferably, the upper surface of the sealing disc is a three-layer step surface, the plug moving cavity, the lower water inlet cavity, the lower water outlet cavity and the lower pressure regulating cavity are all formed on a first step surface, and sealing rings are respectively arranged at positions of the first step surface on the upper surface of the sealing disc, corresponding to the upper water inlet cavity, the upper water outlet cavity and the upper pressure regulating cavity of the lower surface of the guide plate, to form three independent cavities; the lower surface of the sealing disc is provided with a clamping block or a thread with a clamping groove on the side wall corresponding to the second step surface so as to be connected with the raw material seat.
And the outer side of the bottom of the pressure regulating stud is provided with external threads so as to be connected with the internal threads of the pressure regulating pipe.
By adopting the technical means, the maximum output pressure of the water pump can be adjusted by screwing the pressure adjusting stud to adjust the compression length of the pressure adjusting spring, so that the aim of adjusting proper pressure according to coffee powder or coffee capsules under different conditions is fulfilled, and the coffee raw materials with corresponding specifications are extracted by controlling the maximum output pressure of the manual water pump, so that the best coffee brewing effect is achieved.
Drawings
FIG. 1 is a cross-sectional view of an embodiment of a variable pressure water pump of the present application;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is an exploded view of FIG. 1 II;
FIG. 4 is a schematic view of the water inlet of the present embodiment;
fig. 5 is a schematic diagram of overpressure water outlet in the present embodiment.
Fig. 6 is a schematic cross-sectional view of an embodiment of the manual coffee maker of the present application.
1, a sealing disc; 101, a first step surface; 102, plugging the mobile cavity; 103, a lower water inlet cavity; 104, a lower water outlet cavity; 105, lowering the pressure regulating cavity; 106, a stud; 107, a sidewall of the second step surface;
2, a guide plate; 21, upper water inlet cavity; 22, upper outlet chamber; 23, an upper pressure regulating cavity; 24, a central boss; 241, water inlet holes; 242, water outlet; 243, pressure regulating holes; 244, a water inlet passage; 245, pressure regulating channel; 25, a water inlet pipe; 251, the step surface of the water inlet pipe; 26, a pressure regulating tube;
3, a pump tube; 31, a bottom plate; 32, circular channels; 311, a water inlet pipe mounting hole; 312, a pressure regulating tube mounting hole; 321, pump outer tube; 322, pump liner; 3211, steps;
4, a plunger rod;
52, a second seal ring; 53, a fifth sealing ring; 54, a fourth seal ring; 55, a first sealing ring; 56, a sixth sealing ring;
6, clamping blocks;
7, a water outlet pipe;
8, a water inlet cavity; 9, a water outlet cavity; 10, a pressure regulating cavity;
11, a water inlet plug; 12, a water outlet plug; 13, a water outlet spring;
14, regulating a pressure plug; 15, a pressure regulating spring; 16, pressure regulating studs; 161, pressure regulating the water outlet hole;
17, a compression bar; 18, a compression bar spring; 19 a pressurized chamber;
c, a raw material seat; 301, an upper cover; 302, a lower cover; 3021, a discharge port; 3011, an insertion port; 3012, fastener
Detailed Description
The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings.
Referring to fig. 1, a cross-sectional view of an embodiment of the adjustable pressure manual water pump of the present application is shown. The pressure-adjustable water pump in the embodiment mainly comprises a sealing disc 1, a guide plate 2, a pump pipe 3, a plunger rod 4, a pressure rod 17, a pressure rod spring 18 and other structures. The sealing disk 1 is positioned at the bottommost part, and the deflector 2 and the pump pipe 3 are fixed with the sealing disk 1 into a whole pump through a screw and stud matching structure. The detailed structure is described below.
As shown in fig. 1 to 3, the sealing disk 1 has a three-layer stepped structure. A first step surface 101 serving as an upper surface is provided with a downward concave plug moving cavity 102, a lower water inlet cavity 103 communicated with the plug moving cavity 102, a penetrating lower water outlet cavity 104 and a lower pressure regulating cavity 105. As shown in fig. 3, the lower water inlet chamber 103, the lower water outlet chamber 104 and the lower pressure regulating chamber 105 are formed by a convex structure on the first step surface 101, but not limited thereto, and a downward depression is also possible. The upper surface of the sealing disk 1 is also provided with a plurality of studs 106 so as to be integrally connected with the baffle 2 and the pump tube 3. The lower surface of the sealing plate 1 is provided with a clamping block 6 with a clamping groove on the side wall 107 corresponding to the second step surface, and the clamping block is connected with a raw material seat containing coffee raw materials. Of course, the connection mode with the raw material seat is not limited to the connection of the clamping block, and other modes, such as threaded connection, and the like, can be adopted. As shown in fig. 1, a water outlet pipe 7 is arranged in the lower water outlet cavity 104.
The deflector 2 is connected with the upper part of the sealing disk 1 in a sealing way. As shown in fig. 1 to 4, the lower surface of the baffle plate 2 is provided with an upper water inlet cavity 21, a penetrating upper water outlet cavity 22 and an upper pressure regulating cavity 23. After the baffle 2 is combined with the sealing disk 1, the upper water inlet cavity 21 and the lower water inlet cavity 103 form an independent complete water inlet cavity 8; the upper water outlet cavity 22 and the lower water outlet cavity 104 form an independent complete water outlet cavity 9; the upper pressure regulating chamber 23 and the lower pressure regulating chamber 105 form a separate complete pressure regulating chamber 10. Referring to fig. 1, a central boss 24 is formed on the upper surface of the baffle 2, and a water inlet 241, a water outlet 242 and the pressure regulating holes 243 are formed on the central boss 24. The water outlet hole 242 is arranged in the center of the guide plate 2, and the water inlet hole 241 and the pressure regulating hole 243 are respectively arranged at two sides of the water outlet hole 242. Meanwhile, a water inlet channel 244 is formed between the upper end of the water inlet 241 and the water outlet 242, a pressure regulating channel 245 is formed between the upper end of the pressure regulating hole 243 and the water outlet 242, and the water inlet channel 244 and the pressure regulating channel 245 may not be communicated with the water outlet 242. A second sealing ring 52 is arranged outside the central boss 24, so that the baffle 2 is kept sealed when being connected with the pump pipe 1. A through water inlet pipe 25 and a pressure regulating pipe 26 are also arranged beside the central boss 24 of the guide plate 2.
As shown in fig. 2, the bottom of the water inlet pipe 25 is correspondingly communicated with the upper part of the plug moving cavity 102. The bottom of the water inlet hole 241 is communicated with the water inlet cavity 8. The water inlet 241 communicates with the water inlet passage 244. The pressure regulating passage 245 communicates with the pressure regulating hole 243. The bottom of the pressure regulating hole 243 is communicated with the pressure regulating chamber 10. The water outlet hole 242 is positioned at the top of the water outlet cavity 9 and is communicated with the water outlet cavity 9 in a matching way. In this way, the water inlet pipe 25 is sequentially connected to the water inlet chamber 8, the water inlet hole 241, the water inlet passage 244, the pump pipe, the pressure regulating passage 245, the pressure regulating hole 243, the pressure regulating chamber 10 and the pressure regulating pipe 26.
A water inlet plug 11 is provided in the water inlet pipe 25 and plug moving chamber 102. The water inlet plug 11 can move up and down in the water inlet pipe 25 and the plug moving cavity 12 when the internal and external pressures change so as to block or release the pipe orifice of the water inlet pipe and realize whether water flows into the water inlet pipe or not. A fourth sealing ring 54 is arranged at the top of the water inlet plug 11, and the inner end surface of the water inlet pipe 25 is set to be a water inlet pipe step surface 251, so that the water inlet plug is better sealed.
The water outlet cavity 9 is internally provided with a water outlet plug 12 and a water outlet spring 13. The water outlet spring 13 is positioned between the water outlet plug 12 and the water outlet pipe 7. The water outlet spring 13 stretches and contracts according to the stress, so that the water outlet plug moves upwards to block the water outlet 242 to avoid outflow of water in the pump pipe or the water outlet plug moves downwards to open the water outlet 242 to enable water in the pump pipe to outflow.
As shown in fig. 1 and 2, the inner wall of the pressure regulating tube 26 is provided with an internal thread, and the pressure regulating tube 26 is communicated with the pressure regulating cavity 10. The pressure regulating pipe 26 is internally provided with a pressure regulating plug 14, and the pressure regulating plug 14 is provided with a pressure regulating spring 15 and a pressure regulating stud 16 sleeved outside the pressure regulating spring 15. External threads are arranged outside the pressure regulating stud 16, and the compression length of the pressure regulating spring is adjusted by screwing the pressure regulating stud 16 and the pressure regulating pipe 26 to adjust pressure. The pressure regulating stud 16 is provided with a pressure regulating water outlet 161. When the pressure in the pump pipe exceeds the set pressure, water in the pump pipe is discharged from the pressure regulating chamber 10 through the pressure regulating water outlet hole 161 until the set pressure.
Referring to fig. 1, the pump tube 3 is composed of an integrally formed base plate 31 and a through circular passage 32 provided in the middle of the base plate 31. The two sides of the bottom plate 31 are respectively provided with a water inlet pipe mounting hole 311 and a pressure regulating pipe mounting hole 312. The water inlet pipe 25 passes through the water inlet pipe mounting hole 311, the pressure regulating pipe 26 passes through the pressure regulating pipe mounting hole 312, the fifth sealing ring 53 is arranged between the water inlet pipe mounting hole 311 and the water inlet pipe, and the sixth sealing ring 56 is arranged between the pressure regulating pipe mounting hole 312 and the pressure regulating pipe for sealing. The circular channel 32 is disposed above the water outlet 242 and is in communication with the water inlet 244 and the pressure regulating 245, so that water can pass through the water inlet 8 and the water inlet 241 from the water inlet pipe to the circular channel 32 of the pump pipe, and water can pass through the pressure regulating 245 to the pressure regulating 10.
The circular channel 32 is sealed with the plunger rod 4 by a first sealing ring 55. As shown in fig. 1, the circular passage 32 is formed by sleeving a pump outer pipe 321 and a lining pipe 322. The pump outer tube 321 has a step 3211 on an upper end surface thereof, the upper end of the first seal ring 55 is in sealing contact with a lower portion of the step 3211, and the upper end of the liner tube 322 is in sealing contact with a lower end of the first seal ring 55. Thus, the first seal ring 55 seals the plunger rod 4 inside, while the outside of the first seal ring 55 seals the pump outer tube 321.
Referring to fig. 1 again, the pressing rod 17 is sleeved on the outer side surface of the circular channel 32, and a pressing rod spring 18 is disposed between the pressing rod 17 and the circular channel 32. The compression bar 17 is fixedly connected with the top end of the plunger rod 4 through a screw. The pressure bar 17 drives the plunger rod 4 to move up and down along the inner cavity of the circular channel 32, so as to pump water and press water in the pump.
As shown in fig. 1 and fig. 3, the sealing disc 1 is provided with a plurality of studs 106, corresponding baffle plates 2 are provided with stud vias (not shown in the drawings), and the bottom plate of the pump tube 3 is provided with corresponding screw holes 33. The studs 106 sequentially pass through the corresponding screw hole through holes, and are screwed with the studs by screws passing through the screw holes. The three main components of the pump are connected together.
The principle of the application is as follows:
a pressurizing cavity 19 is defined between the bottom of the plunger rod 4 and the water outlet 242 in the circular channel 32. When the pump body is at the initial position, the internal pressure and the external pressure of the pump body are balanced, the lower end of the water inlet plug 11 is seated on the plug moving cavity 102, the fourth sealing ring 54 on the upper end surface of the water inlet plug is separated from the water inlet pipe step 251, the water inlet pipe 25 is kept smooth, the water outlet plug 12 plugs the water outlet hole 242 under the action of the water outlet spring 13, and the pressure regulating plug 14 plugs the pressure regulating pipe 26.
Referring to fig. 4, fig. 4 is a schematic view of water inflow in the present embodiment. After the pressure regulating stud 16 is regulated, the pressure lever 17 drives the plunger rod 4 to move upwards, the air pressure in the pressure regulating cavity 19 is reduced, the orifice of the water inlet pipe 25 is opened, water enters the water inlet pipe 25, then reaches the pressure regulating cavity 19 through the water inlet cavity 8, the water inlet hole 241 and the water inlet channel 244, and part of the water flows into the pressure regulating hole 243 through the pressure regulating channel 245 until reaching the pressure regulating cavity 10.
The pressure rod 17 is pressed downwards, the volume of the pressure cavity 19 is reduced, the pressure is increased, the water inlet plug 11 moves upwards under the pressure, the fourth sealing ring 54 at the upper end of the water inlet plug is propped against the water inlet pipe step 251, and the water inlet pipe is closed; when the pressure in the pressurizing cavity 19 continues to be increased to be larger than the elastic force of the water outlet spring 13 and smaller than the set pressure, the pressure regulating hole 243 is still closed by the pressure regulating tube 26 under the action of the pressure regulating spring 15, the water outlet spring 13 is contracted, the water outlet plug 12 moves downwards to open the water outlet hole, so that water enters the water outlet cavity 9 and flows out through the water outlet pipe 7.
Referring to fig. 6 again, a schematic cross-sectional view of an embodiment of the manual coffee maker of the present application is shown. The manual coffee machine with the pressure-adjustable water pump comprises the pressure-adjustable water pump A, the water tank B and the raw material seat C.
As shown in fig. 6, the water tank B includes a through middle connecting pipe 201, the middle connecting pipe 201 is sleeved on the outer side of the pressure lever 17, and a limit structure is disposed on the side surface connected with the pressure lever 17 to prevent the pressure lever 17 from separating from the water tank B. The bottom of the water tank B is in sealing connection with the upper surface of the bottom plate of the pump pipe 3 through a sealing ring 56. The water tank B is internally provided with a water tank water inlet 202 and a water tank pressure relief 203. The water tank inlet hole 202 is connected with the water inlet pipe 25; the pressure regulating pipe 26 is connected with the water tank pressure relief hole 203, and the pressure regulating stud 16 can pass through the water tank pressure relief hole 203 to facilitate adjustment.
The material holder C is formed by combining an upper cover 301 and a lower cover 302. The material seat C is provided with a receiving space for receiving a coffee/coffee capsule, and the lower cover 302 is provided with a through discharge port 3021. The upper cover 301 is connected to the bottom of the sealing disk 1, and the upper cover 301 is provided with an insertion port 3011 of the water outlet pipe 7. The upper cover 301 is provided with a raised buckle 3012 or screw thread corresponding to the sealing disk 1.
Referring again to fig. 5 and 6, fig. 5 is a schematic diagram of overpressure water outlet according to the present embodiment. When the pressure in the inner cavity of the raw material seat C is continuously increased to be larger than a set pressure value, the water inlet pipe is closed by the water inlet plug under the pressure, the water outlet plug is closed under the combined action of the pressure in the raw material seat C and the water outlet spring, the pressure in the pressure regulating cavity 10 is continuously increased along with the pressure in the pressurizing cavity 19, the pressure regulating plug 14 is impacted by the water pressure in the pressure regulating cavity 10, the pressure regulating plug 14 is pushed to move upwards, water enters the pressure regulating pipe 26, and the pump body is discharged through the pressure regulating water outlet hole 161, so that the purpose of pressure limiting is achieved.
According to the coffee brewing device, the pressure regulating stud is skillfully arranged in the pressure regulating cavity, the maximum output pressure of the manual water pump can be controlled to extract coffee raw materials of corresponding specifications by screwing the pressure regulating stud to regulate the elasticity of the spring, and the best coffee brewing effect is achieved.
The above-described embodiments are only for illustrating the present utility model and are not intended to limit the scope of the present utility model. Equivalent changes and modifications of the utility model will occur to those skilled in the art, and it is intended to cover the scope of the appended claims.

Claims (7)

1. A pressure-adjustable manual water pump for a manual coffee machine, comprising:
the upper surface of the sealing disc is provided with a plug moving cavity; a lower water inlet cavity communicated with the plug moving cavity; a penetrating lower water outlet cavity; a lower pressure regulating chamber; wherein a water outlet pipe is arranged in the lower water outlet cavity;
the guide plate, it locates on the seal dish, wherein:
an upper water inlet cavity, a penetrating upper water outlet cavity and an upper pressure regulating cavity are formed on the lower surface of the guide plate, and the upper water inlet cavity and the lower water inlet cavity form an independent water inlet cavity; the upper water outlet cavity and the lower water outlet cavity form an independent water outlet cavity, and the upper pressure regulating cavity and the lower pressure regulating cavity form an independent pressure regulating cavity; a water outlet plug and a water outlet spring are arranged in the water outlet cavity, and the water outlet spring is positioned between the water outlet plug and the water outlet pipe;
the guide plate is also provided with a through water inlet pipe, a pressure regulating pipe, a water inlet hole, a water inlet channel, a water outlet hole, a pressure regulating channel and a pressure regulating hole, wherein the bottom of the water inlet pipe is correspondingly communicated with the upper part of the plug moving cavity; the bottom of the water inlet hole is communicated with the water inlet cavity; the water inlet hole is communicated with the water inlet channel; the pressure regulating channel is communicated with the pressure regulating hole; the bottom of the pressure regulating hole is communicated with the pressure regulating cavity; the water outlet hole is arranged at the top of the upper water outlet cavity and communicated with the water outlet cavity in a matching way;
a water inlet plug is arranged in the water inlet pipe and the plug moving cavity, and the water inlet plug moves up and down in the water inlet pipe and the plug moving cavity according to the change of pressure so as to block or release the pipe orifice of the water inlet pipe;
the inner wall of the pressure regulating pipe is provided with an internal thread, the pressure regulating pipe is communicated with the pressure regulating cavity, the pressure regulating pipe is provided with a pressure regulating plug, the pressure regulating plug is provided with a pressure regulating spring and a pressure regulating stud sleeved outside the pressure regulating spring, the pressure regulating stud is provided with an external thread, and the pressure regulating stud and the pressure regulating pipe are matched to regulate the compression length of the pressure regulating spring so as to regulate the pressure; the pressure regulating stud is provided with a pressure regulating water outlet hole;
the pump line, it comprises integrated into one piece's bottom plate and locate the circular passageway of run-through in the middle of the bottom plate, wherein:
the two sides of the bottom plate are provided with a water inlet pipe mounting hole and a pressure regulating pipe mounting hole, and the water inlet pipe and the pressure regulating pipe penetrate through the corresponding mounting holes;
the circular channel is arranged above the water outlet hole and forms a pressurizing cavity with the upper surface of the sealing disc; the pressurizing cavity is communicated with the water inlet channel and the pressure regulating channel; a plunger rod is sealed in the circular channel through a first sealing ring;
the compression bar is sleeved on the outer side surface of the circular channel, a compression bar spring is arranged between the compression bar and the circular channel, the compression bar is connected with the top end of the plunger rod, and the compression bar drives the plunger rod to move up and down along the inner cavity of the circular channel.
2. The pressure-adjustable manual water pump according to claim 1, wherein a plurality of studs are arranged on the sealing disc, stud through holes are arranged on the corresponding guide plates, screw holes are arranged on the bottom plate of the pump pipe correspondingly, and the studs sequentially penetrate through the corresponding screw hole through holes and are screwed with the studs by screws.
3. The adjustable pressure manual water pump as recited in claim 1, wherein a pump plunger is fixedly connected to said plunger by screws.
4. The pressure-adjustable manual water pump according to claim 1, wherein the circular channel is formed by sleeving a pump outer pipe and a lining pipe, a step is arranged on the upper end face in the pump outer pipe, the upper end of the first sealing ring is in sealing abutting joint with the lower part of the step, and the upper end of the lining pipe is in sealing abutting joint with the lower end of the first sealing ring.
5. The pressure-adjustable manual water pump according to claim 1, wherein a central boss is formed on the upper surface of the guide plate, the water inlet, the water outlet and the pressure-adjusting hole are all located in the central boss, and a second sealing ring is arranged on the outer side of the central boss, so that the guide plate is kept sealed when being connected with the bottom plate of the pump pipe.
6. The pressure-adjustable manual water pump according to claim 1, wherein the upper surface of the sealing disc is a three-layer step surface, the plug moving cavity, the lower water inlet cavity, the lower water outlet cavity and the lower pressure-adjustable cavity are all formed on a first step surface, and the first step surface on the upper surface of the sealing disc is sealed with the lower surface of the guide plate through a sealing ring; the lower surface of the sealing disk is provided with a clamping block or a thread with a clamping groove on the side wall corresponding to the second step surface so as to be connected with the raw material seat.
7. The pressure-adjustable manual water pump according to claim 1, wherein the outer side of the bottom of the pressure-adjusting stud is provided with an external thread so as to be connected with an internal thread of the pressure-adjusting pipe.
CN202321687502.7U 2023-06-30 2023-06-30 Manual water pump of adjustable pressure Active CN220459170U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321687502.7U CN220459170U (en) 2023-06-30 2023-06-30 Manual water pump of adjustable pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321687502.7U CN220459170U (en) 2023-06-30 2023-06-30 Manual water pump of adjustable pressure

Publications (1)

Publication Number Publication Date
CN220459170U true CN220459170U (en) 2024-02-09

Family

ID=89801441

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321687502.7U Active CN220459170U (en) 2023-06-30 2023-06-30 Manual water pump of adjustable pressure

Country Status (1)

Country Link
CN (1) CN220459170U (en)

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