CN218882502U - Booster pump head and booster pump - Google Patents

Abstract

The utility model provides a booster pump head and booster pump, booster pump head includes pump case and buffer, the pump case encloses to establish and forms outlet channel, outlet channel is provided with the water inlet and the delivery port that are linked together, the bolster holding is in outlet channel, the bolster includes stagnant water wall and encloses the wall that closes, enclose to close the wall and enclose around stagnant water wall setting, and enclose wall and stagnant water wall sealing connection, enclose the one end that closes the wall and be close to the water inlet and enclose and close the opening that forms and feed through in the water inlet, stagnant water wall and enclose the wall and all laminate in the pump case in part at least, the apopore with the delivery port intercommunication is seted up to the stagnant water wall. This application closes the wall through the stagnant water wall of bolster and encloses and can accept the rivers that get into in the exhalant canal from the water inlet, absorbs out water pulse kinetic energy, reduces the noise problem that high-pressure rivers assaulted the initiation to the pump case, also makes the booster pump play water more steady, stagnant water wall and enclose the wall and at least partly laminate in the pump case simultaneously, can avoid the bolster to collide with the pump case and produce new noise under the impact of rivers.

Description

Booster pump head and booster pump

Technical Field

The application relates to the technical field of booster pumps, in particular to a booster pump head and a booster pump.

Background

During the research and practice of the prior art, the inventor of the present application found that the improvement of the existing booster pump generally solves the problem of how to increase the flow rate of the booster pump, however, as the flow rate of the booster pump increases, the noise problem when the booster pump operates becomes more serious. The pump head of the booster pump is usually made of a hard plastic material, which is difficult to absorb the impact of the high-speed and high-pressure discharge water flow, and thus causes flow resistance noise when the discharge water flow impacts on the pump head. In addition, the impact of water flow can cause the water pipeline to fluctuate, thereby causing pipeline noise.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the application adopts a technical scheme that: there is provided a booster pump head comprising:

the pump comprises a pump shell, wherein a water outlet channel is formed by surrounding the pump shell and is provided with a water inlet and a water outlet which are communicated;

the water outlet channel is arranged in the water inlet, the water outlet channel is communicated with the water inlet, and the water outlet channel is communicated with the water inlet;

wherein, the stagnant water wall is laminated in the pump case at least partially, encloses the wall and laminates in the pump case at least partially, and at least one apopore has been seted up to the stagnant water wall, apopore and delivery port intercommunication.

Wherein, enclose and close the wall and deviate from the surperficial epirelief of pump case and be equipped with vortex portion, vortex portion sets up and closes the one end that the wall is close to the water inlet enclosing.

Wherein, vortex portion is provided with a plurality ofly, and a plurality of vortex portions set up around the reference axis interval of perpendicular to stagnant water wall.

Wherein, vortex portion is the toper convex part, and the summit of toper convex part is located the one end that the enclosure wall was kept away from to the toper convex part.

Wherein, the part of the inner wall of the pump shell forming the water outlet channel is convexly provided with a reinforcing rib part.

Wherein, stagnant water wall portion laminating in strengthening rib portion, the exhaust hole has still been seted up to the stagnant water wall, and the cavity that the exhaust hole intercommunication stagnant water wall, strengthening rib portion and partial inner wall enclose to establish the formation.

The pressurizing pump head further comprises a pressure release valve, the pressure release valve is arranged on the pump shell, a pressure release opening communicated with the water outlet channel is formed in the pump shell, the pressure release valve covers the pressure release opening, and a pressure release hole communicated with the pressure release opening is further formed in the water stop wall.

The water stopping wall comprises a first water stopping wall and a second water stopping wall which are arranged at intervals, the enclosing wall comprises a first enclosing wall and a second enclosing wall which are connected, the first enclosing wall is arranged around the first water stopping wall and the second water stopping wall, and the second enclosing wall is matched with part of the first enclosing wall and arranged around the first water stopping wall;

the second water stopping wall and the second enclosing wall are matched to form a clamping groove, a clamping convex part is arranged on the part of the inner wall of the pump shell forming the water outlet channel, and the clamping groove is clamped with the clamping convex part.

Wherein, the thickness of the water stop wall and the surrounding wall is more than or equal to 1 mm and less than or equal to 3 mm.

Wherein, the area of apopore is more than or equal to 40 square millimeters and is less than or equal to 200 square millimeters.

Wherein the area of the vent hole is more than or equal to 3 square millimeters and less than or equal to 20 square millimeters.

Wherein, the area of the pressure relief hole is more than or equal to 2 square millimeters and less than or equal to 20 square millimeters.

In order to solve the technical problem, the other technical scheme adopted by the application is as follows: a booster pump is provided, which comprises the booster pump head.

Be different from prior art, the beneficial effect of booster pump head and booster pump that this application provided is:

the stagnant water wall of bolster with enclose the wall and can accept the rivers that get into in the exhalant canal from the water inlet, absorb out water pulse kinetic energy, reduce the noise problem that high-pressure rivers strike the initiation to the pump case, it is more steady also to make the booster pump play water, the stagnant water wall closes wall and encloses at least part laminating in the pump case simultaneously, can avoid the bolster to bump with the pump case under the impact of rivers and produce new noise, furthermore, the apopore of intercommunication delivery port is seted up in the stagnant water wall, the rivers that can avoid getting into the bolster are exported to the delivery port without stagnant water wall buffering just, thereby improve the buffering effect of bolster.

Drawings

FIG. 1 is a schematic structural diagram of a booster pump according to an embodiment of the present application;

FIG. 2 is a schematic diagram of the construction of the booster pump head of the embodiment of FIG. 1;

FIG. 3 is a schematic structural view of the pump casing of the embodiment of FIG. 2;

FIG. 4 is a schematic structural view of the buffer member in the embodiment of FIG. 2;

FIG. 5 is a schematic diagram of a portion of the construction of the booster pump head of the embodiment of FIG. 2;

FIG. 6 is a schematic view of the pump casing of the embodiment of FIG. 2 from another perspective;

FIG. 7 is a schematic diagram of a portion of the booster pump head of the embodiment of FIG. 2 from another perspective;

FIG. 8 is a schematic view of the buffer of the embodiment of FIG. 2 from another perspective;

fig. 9 is a schematic structural diagram of a buffer according to another embodiment of the present application.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying figures are described in detail below. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The terms "first," "second," and the like, as used herein may be used to describe various elements, components, regions, layers and/or sections, but these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, terms such as "mounted," "connected," and the like are to be construed broadly, and for example, may be fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The booster pump is a device which increases kinetic energy and pressure energy of liquid by applying work to the liquid, and is commonly used for water treatment equipment such as a water heater, a water purifier, a water dispenser, a coffee machine and the like. Common booster pumps include domestic booster pumps, pipeline booster pumps, fire fighting booster pumps, pneumatic booster pumps, gas-liquid booster pumps, and the like.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a booster pump according to an embodiment of the present application.

The booster pump 1000 provided in this embodiment is a diaphragm booster pump. In the present embodiment, the booster pump 1000 includes a booster pump head 10 and a booster pump body 20. The booster pump head 10 is used for boosting liquid and outputting the boosted liquid. The booster pump body 20 is used to power the booster pump head 10.

In some embodiments, the booster pump head 10 has a booster device 100, a booster chamber 200, and a high pressure chamber 300. The pressure increasing device 100 may be used to perform work on the liquid within the pressure increasing cavity 200 to increase the pressure energy of the liquid within the pressure increasing cavity 200. When the hydraulic pressure reaches a preset value, the liquid in the pressurizing chamber 200 can be output to the high-pressure chamber 300 and further output to the outside of the pump.

In this embodiment, the pressurizing chamber 200 is formed by a flexible diaphragm and a water valve seat covering the flexible diaphragm. Wherein, the flexible membrane carries out the periodic expansion water absorption and the drainage process of contracting under the effect of supercharging device 100, realizes the pressure boost process. The periodic pressurizing process of the pressurizing cavities 200 makes the effluent water flow have certain pulsation, and the pulsation of the water flow is enhanced along with the pressurizing of the water pump flow. Research finds that the pulsation of the outlet water flow impacts the wall surface of the pump head to cause wall surface noise on one hand, and on the other hand, the pulsation of the water flow also causes periodic load on an outlet pipeline to cause the problem of pipeline vibration.

Optionally, the booster pump head 10 further comprises a buffer 400. The buffer member 400 is disposed in the high pressure chamber 300, and is used for buffering the liquid output after pressurization. The liquid is typically water, although other liquids are possible.

Referring to fig. 2, fig. 2 is a schematic structural diagram of the booster pump head in the embodiment of fig. 1.

In some embodiments, the booster pump head 10 includes a pump housing 500. The pump casing 500 encloses a high pressure chamber 300. The buffer 400 is mounted in the pump case 500. The buffer 400 is made of a flexible material including, but not limited to, rubber, silicone, etc.

Optionally, the buffer member 400 is at least partially attached to the inner wall 501 of the pump housing 500, so that the water flow conveyed into the high-pressure cavity 300 after being pressurized can impact on the buffer member 400, and cannot directly impact on the inner wall 501, thereby reducing the flow resistance noise generated by the booster pump 1000 itself, and further reducing the pipeline noise generated by the water treatment equipment in which the booster pump 1000 is installed.

In some embodiments, the bumper 400 includes a water stop wall 410 and a containment wall 420. A water stop wall 410 is provided on the path of the fluid flow into the pump housing 500 for receiving the impact of the majority of the water flow. The enclosing wall 420 is disposed around the water stopping wall 410. The water stop wall 410 is hermetically connected with the enclosing wall 420 to form a buffer cavity which is open towards the inflow direction of the effluent water flow, so that the water flow can fully flow into the buffer cavity. The water stopping wall 410 and the enclosing wall 420 can be basically attached to the inner wall 501, so that new noise generated by collision between the water stopping wall 410 and/or the enclosing wall 420 and the inner wall 501 due to impact of water flow is avoided, and stability of the buffer member 400 in the high-pressure cavity 300 is improved.

In the present embodiment, the water stopping wall 410 is substantially perpendicular to the direction of the water flow entering the high pressure chamber 300, and the enclosing wall 420 is substantially parallel to the direction of the water flow entering the high pressure chamber 300, so that the water flow entering the high pressure chamber 300 can impact the water stopping wall 410 to the maximum extent to achieve a sufficient buffering effect. Of course, in other embodiments, the water stop wall 410 may be disposed obliquely.

In some embodiments, the water stopping wall 410 includes a first water stopping wall 4101 and a second water stopping wall 4102. The first and second water stopping walls 4101 and 4102 are provided at intervals to form a certain interval distance in a direction in which water flows into the high pressure chamber 300. The enclosing walls 420 include a first enclosing wall 4201 and a second enclosing wall 4202. The first enclosing wall 4201 is provided around the first water stopping wall 4101 and the second water stopping wall 4102. The first enclosure wall 4201 is connected to the first water stopping wall 4101 and the second water stopping wall 4102, respectively. The second enclosure wall 4202 is provided between the first water stopping wall 4101 and the second water stopping wall 4102. The second enclosing wall 4202 is provided around the first water stopping wall 4101 in cooperation with a part of the first enclosing wall 4201. The second enclosure wall 4202 is also connected to the first water stopping wall 4101 and the second water stopping wall 4102, respectively.

The second enclosing wall 4202 and the second water stop wall 4102 are engaged to form a groove, and the pump case 500 is provided with a projection engaged with the groove, so that the cushion 400 can be fixed to the pump case 500 by engaging the groove with the projection.

Of course, the engaging and connecting structure of the damper 400 and the pump housing 500 may be other structures. For example, grooves with other shapes are formed on the buffer member 400, and the pump casing 500 is correspondingly provided with matching protrusions to realize the snap-fit connection with the buffer member 400; or the buffer 400 is provided with a convex portion, and the pump casing 500 is provided with a matching concave portion to realize the snap connection between the two, etc., which is not limited in detail herein.

Optionally, the buffer 400 is interference disposed within the pump housing 500. In particular, the first containment wall 4201 and/or the second containment wall 4202 abut against the inner wall 501 of its periphery. Meanwhile, the first water stop wall 4101 and the second water stop wall 4102 are attached to the inner wall 501.

In the present embodiment, the damper 400 and the high-pressure chamber 300 are designed to be tightly fitted, and the damper 400 can be directly installed in the high-pressure chamber 300 without being fixed by other installation structures. When the shock absorber 400 is installed, the shock absorber 400 may be engaged with the pump housing 500 to complete the position fixing of the shock absorber 400 in the high pressure chamber 300. The buffer member 400 installed in the high-pressure cavity 300 is equivalent to a flexible vibration isolation between the outlet pulsating water flow and the inner wall 501, and can absorb the kinetic energy of the pulsating water flow impacting the wall surface, thereby realizing the noise reduction effect.

In some embodiments, the booster pump head 10 further comprises a pressure relief valve 600. The pressure relief valve 600 is disposed on the pump casing 500, and is used to guide the water in the high-pressure chamber 300 to the water inlet channel of the booster pump head 10 when the pump is blocked, so as to prevent the booster pump head 10 from being damaged due to excessive water accumulation in the high-pressure chamber 300. Specifically, the pump casing 500 is provided with a pressure relief opening 502. The pressure relief port 502 communicates with the water inlet passage of the booster pump head 10. The relief valve 600 covers the relief port 502. When the water pressure in the high pressure chamber 300 does not exceed the preset value, the relief valve 600 is in a closed state, and the water in the high pressure chamber 300 is prevented from passing through the relief opening 502. When the water pressure in the high-pressure chamber 300 exceeds the preset value, the pressure relief valve 600 is in an open state, and the water in the high-pressure chamber 300 flows into the water inlet channel of the booster pump head 10 through the pressure relief opening 502.

The relief valve 600 includes a water stop plate 610 and an elastic member 620. The water stop plate 610 is elastically connected to the elastic member 620. When the water pressure in the high-pressure chamber 300 is in a normal range, the booster pump head 10 is in a normal operating state or a dormant state, and at this time, the water stop plate 610 abuts against the pump housing 500 and covers the pressure relief opening 502 to prevent the water in the high-pressure chamber 300 from flowing through the pressure relief opening 502. When the water pressure in the high-pressure chamber 300 exceeds the normal range, the booster pump head 10 is in a water outlet blocking state, and at this time, the water stop plate 610 is pushed by the water in the high-pressure chamber 300 to move towards the direction away from the pressure relief opening 502, so that the water in the high-pressure chamber 300 can flow into the water inlet channel of the booster pump head 10 through the pressure relief opening 502. When the water pressure in the high pressure chamber 300 returns to the normal range, the water stop plate 610 abuts against the pump housing 500 again and covers the pressure relief opening 502.

Optionally, when the water pressure in the high pressure chamber 300 is in the normal range, the elastic member 620 is in a compressed state, and at this time, the elastic member 620 exerts an elastic force that makes the water stop plate 610 abut against the pump casing 500 on the water stop plate 610, so as to prevent the water in the high pressure chamber 300 from leaking through the pressure relief opening 502. Of course, in other embodiments of the present application, the elastic member 620 may be in an undeformed state or a stretched state, and the water stop plate 610 abuts against the pump casing 500 by its own weight or other external force.

Alternatively, the pressure relief valve 600 may control the amount of water pressure required to push the water stop plate 610 to move by using different specifications of the water stop plate 610 and/or the elastic member 620, and may also control the degree of tension or compression of the elastic member 620, which is not limited in this respect.

In some embodiments, the buffer 400 is opened with a pressure relief hole 401. The pressure relief hole 401 is communicated with the pressure relief opening 502, so that water in the high-pressure chamber 300 can enter the water inlet channel of the booster pump head 10 through the pressure relief hole 401 and then through the pressure relief opening 502. When rivers pass through pressure release hole 401, the flexible structure of bolster 400 can absorb some rivers pulsation impact, reduces the flow loss that the pressure release valve 600 opened and caused under the non-shutoff state, improves booster pump 1000's pressure boost efficiency.

Optionally, the relief valve 600 is inserted into the pump housing 500 in a direction substantially perpendicular to the top wall of the pump housing 500 to facilitate the attachment and detachment and adjustment of the relief valve 600. Wherein the elastic member 620 may be extended and contracted in a direction substantially perpendicular to the top wall of the pump case 500. The pressure release hole 401 is provided in the second water stop wall 4102 to facilitate communication between the pressure release hole 401 and the pressure release port 502 when the cushion member 400 is mounted.

Of course, in other embodiments of the present application, the pressure relief valve 600 may be disposed in other manners, such as being inserted into the pump housing 500 in a direction substantially parallel to the top wall of the pump housing 500, and the elastic member 620 may be disposed to be expanded and contracted in a direction substantially parallel to the top wall of the pump housing 500 or in other directions, and the pressure relief opening 502 is disposed in the expansion and contraction direction of the elastic member 620. The pressure relief hole 401 may also be opened at other positions of the buffer 400, so as to communicate with the pressure relief opening 502 when the buffer 400 is installed.

Alternatively, the shapes of the pressure relief port 502 and the pressure relief hole 401 may be designed as circular, semicircular, elliptical, polygonal, etc. as required, and are not limited herein.

Referring to fig. 2 and 3 in combination, fig. 3 is a schematic structural diagram of the pump casing in the embodiment of fig. 2.

In some embodiments, pump housing 500 encloses a water outlet channel 510. The water outlet channel 510 is provided with a water inlet 5101 and a water outlet 5102 which are communicated with each other. Wherein, the water inlet 5101 is an inlet for water flow to enter the high pressure cavity 300 from the pressurization cavity 200. The water outlet 5102 is an outlet through which water flow is output to the outside of the pump. In other words, the water outlet channel 510 is a delivery channel for guiding the pressurized water flow out of the pump. Wherein, one end of the water outlet passage 510 forming the water inlet 5101 may extend in a direction away from the water outlet 5102 to form a space for containing water flow, i.e., the high pressure chamber 300.

An engaging protrusion 520 is provided on a part of an inner wall 501 of the pump case 500 constituting the water discharge passage 510.

In this embodiment, the engaging protrusion 520 protrudes from the inner wall 501 toward the water inlet 5101, so that the buffer 400 is engaged with the engaging protrusion 520 when being installed in the water outlet channel 510. Of course, in other embodiments of the present application, the engaging protrusion 520 may also be protruded at other positions in the water outlet channel 510, so as to be engaged with the buffer member 400, which may be selected according to actual situations and is not limited herein.

Optionally, the portion of the inner wall 501 with the pressure relief opening 502 is protruded to form a convex engaging portion 520. The opening of the pressure relief opening 502 on the engaging protrusion 520 is beneficial to reducing the distance between the pressure relief opening 502 and the water inlet 5101, and can improve the pressure relief efficiency of the booster pump head 10 when the water is blocked. Meanwhile, by disposing the pressure relief port 502 on the surface of the snap-fit protrusion 520 near the water inlet 5101, more installation space can be provided for the pressure relief valve 600.

Referring to fig. 3 to 5, fig. 4 is a schematic structural diagram of a buffer in the embodiment of fig. 2, and fig. 5 is a schematic structural diagram of a portion of the pump head in the embodiment of fig. 2.

In some embodiments, the buffer member 400 includes a first water stop wall 4101 and a second water stop wall 4102 which are arranged at intervals, and the first water stop wall 4101 and the second water stop wall 4102 are connected by a second enclosing wall 4202 which is perpendicular to the first water stop wall 4101 and the second water stop wall 4102, so that the second enclosing wall 4202 and the second water stop wall 4102 cooperate to form the engaging groove 402.

In other words, the engaging recess 402 can be regarded as a recess formed by recessing a part of the first water-stop wall 4101, the second water-stop wall 4102 is a bottom wall of the engaging recess 402, and the second enclosing wall 4202 is a side wall of the engaging recess 402. The shape of the engaging recess 402 may be matched according to the shape of the engaging protrusion 520 of the pump housing 500.

Wherein, the end of the enclosing wall 420 close to the water inlet 5101 encloses to form an opening 403, and the opening 403 is communicated with the water inlet 5101.

The water stop wall 410 and the enclosing wall 420 of the buffer member 400 are integrally formed.

Alternatively, the distance between the first water stop wall 4101 and the second water stop wall 4102 is approximately equal to the protruding distance of the engaging protrusion 520 on the surface of the inner wall 501, so that when the engaging groove 402 is engaged with the engaging protrusion 520, the first water stop wall 4101 can be at least partially attached to the surface of the inner wall 501. The second water stop wall 4102 is also attached to the surface of the engagement protrusion 520 facing the water inlet 5101.

Optionally, the buffer member 400 is received in the water outlet channel 510 with interference, and the peripheral portions of the surrounding walls 420 are all abutted against the inner wall 501. The first enclosing wall 4201 abuts against the inner wall 501 of the water outlet channel 510, and the second enclosing wall 4202 abuts against the side wall of the engaging protrusion 520.

When water flow enters the water outlet channel 510 from the water inlet 5101, the water flow firstly gushes into a buffer space formed by the enclosure of the water stop wall 410 and the enclosure wall 420 through the opening 403, wherein most of the water flow impacts on the water stop wall 410, a small part of the water flow impacts on the enclosure wall 420, the water stop wall 410 and the enclosure wall 420 utilize the characteristic of flexible materials to reduce water flow pulsation, and meanwhile deformation under the impact of the water flow is avoided through the joint arrangement with the inner wall 501.

Optionally, the thickness of each of the water stopping wall 410 and the enclosing wall 420 is greater than or equal to 1 mm and less than or equal to 3 mm, that is, the thickness of the buffer 400 is greater than or equal to 1 mm and less than or equal to 3 mm. For example, the thickness of the water stop wall 410 and the enclosing wall 420 are both approximately 2 mm to ensure sufficient damping effect on the water flow while avoiding occupying too much space of the water outlet passage 510.

In some embodiments, the water stop wall 410 is provided with at least one water outlet 404, and the water outlet 404 is communicated with the water outlet 5102. The water flow buffered by the buffer member 400 can be further delivered to the water outlet 5102 through the water outlet hole 404, and then delivered to the outside of the pump. The area of the water outlet 404 is greater than or equal to 40 square millimeters and less than or equal to 200 square millimeters, so that the output efficiency of water flow is prevented from being too low while the water flow is buffered.

The number of the water outlet holes 404 is usually multiple, for example, 5, 6, 7, etc., and the specific number is not limited herein. In addition, the shape of the water outlet hole 404 may be designed to be circular, semicircular, elliptical, polygonal or other shapes as required.

Alternatively, the water outlet hole 404 is opened on the first water stopping wall 4101 to provide a larger buffering space for the water flow entering the buffering member 400, and to avoid the insufficient buffering effect caused by the water flow being outputted from the side without impacting the first water stopping wall 4101. The pressure relief hole 401 is formed in the second water stop wall 4102, so that the pressure relief hole 401 is closer to the water inlet 5101 than the water outlet 404, and the pressure relief efficiency of the booster pump head 10 during water blockage can be improved. The area of the pressure relief hole 401 is greater than or equal to 2 square millimeters and less than or equal to 20 square millimeters, so that the pressure relief efficiency is guaranteed, and excessive water leakage caused by the fact that the water flows out of the booster pump head 10 when the water is not blocked is avoided. The pressure relief holes 401 may be provided in at least one, for example, 1, 2, 3, 4, etc., without limitation.

In some embodiments, the buffer 400 further defines a vent hole 405. The vent hole 405 may communicate with a cavity formed by the buffer 400 and the pump casing 500, so as to exhaust air in the cavity.

Specifically, referring to fig. 4, fig. 6 and fig. 7 in combination, fig. 6 is a schematic structural diagram of the pump housing in the embodiment of fig. 2 from another view angle, and fig. 7 is a partial structural diagram of the pumping head in the embodiment of fig. 2 from another view angle.

In some embodiments, a portion of the inner wall 501 of the pump casing 500 forming the water outlet channel 510 is provided with a reinforcing rib 530 protruding thereon for increasing the strength of the pump casing 500. The bead 530 may also be disposed on the inner wall 501 outside the outlet channel 510.

It is found that when the buffer member 400 is accommodated in the water outlet channel 510, the water stop wall 410 is partially attached to the reinforcing rib portion 530, and a cavity is defined by the water stop wall 410, the reinforcing rib portion 530 and a portion of the inner wall 501 without the reinforcing rib portion 530. When water is delivered to the water outlet 5102 through the water outlet hole 404, bubbles may be formed when a part of water flows into the cavities, which may cause additional noise when the booster pump 1000 operates and may reduce the water outlet efficiency of the booster pump 1000.

In order to solve the technical problem, the water stop wall 410 is further provided with an air vent 405, the air vent 405 is communicated with a cavity formed by the water stop wall 410, the reinforcing rib part 530 and part of the inner wall 501 in a surrounding mode, and therefore air bubbles in the cavity can be discharged through the air vent 405.

In some embodiments, the vent 405 opens into the first water stop wall 4101. The first water cutoff wall 4101 is partially attached to the bead 530. After the water flow enters the buffering member 400, a part of the buffered water flow is conveyed to the water outlet 5102 through the water outlet hole 404, and the other part of the buffered water flow is conveyed to a cavity formed by the first water stop wall 4101, the reinforcing rib part 530 and a part of the inner wall 501 through the air outlet hole 405, and the air in the cavity is gradually extruded out in the form of bubbles, so that the interference of the bubbles to the operation of the pressurizing pump head 10 is eliminated.

The area of the air vent 405 is greater than or equal to 3 square millimeters and less than or equal to 20 square millimeters, so that air bubbles can be discharged conveniently. The shape of the vent hole 405 may be designed as a circle, a semicircle, an ellipse, a polygon, etc. as required, and the number of the vent holes 405 may be one or more, which is not limited herein.

In addition, in other embodiments, the pump casing 500 may not have the reinforcing rib 530, and the water stop wall 410 may be completely attached to the inner wall 501 to avoid the formation of air bubbles.

Referring to fig. 7 and 8 in combination, fig. 8 is a schematic structural view of the buffer of the embodiment of fig. 2 from another view angle.

In some embodiments, the cushion 400 further includes a spoiler 430. The surrounding wall 420 of the buffer 400 is attached to the pump case 500. A spoiler 430 is raised from the surface of the enclosing wall 420 facing away from the pump housing 500. The spoiler 430 is disposed at an end of the enclosing wall 420 near the water inlet 5101.

Optionally, the bumper 400 comprises a first enclosing wall 4201. The first enclosing wall 4201 is attached to the inner wall 501 of the pump housing 500, and one end of the first enclosing wall 4201 near the water inlet 5101 encloses to form an opening 403. The surface of the first enclosing wall 4201 facing away from the inner wall 501 is convexly provided with the spoiler 430, that is, the spoiler 430 is convexly provided on the inner surface of the first enclosing wall 4201. Further, the turbulent portion 430 is disposed at an end of the first enclosing wall 4201 close to the water inlet 5101, that is, the end of the first enclosing wall 4201 enclosing the opening 403.

Wherein, the spoiler 430 may be provided in plurality. The plurality of spoiler portions 430 are spaced around a reference axis perpendicular to the water stopping wall 410. That is, the spoiler 430 is distributed on an inner surface of one end of the first enclosing wall 4201 near the water inlet 5101. When the water flow enters the buffer member 400 through the opening 403, the spoiler 430 may disturb the water flow such that the water flow collides with each other, thereby reducing the impact of the water flow on the wall surface.

Wherein, vortex portion 430 is the toper convex part, and the summit of toper convex part is located the one end that the enclosure wall 420 was kept away from to the toper convex part. That is, the spoiler 430 extends from the inner surface of the surrounding wall 420 in a direction away from the surrounding wall 420 to form a tapered convex portion having a bottom surface on the surrounding wall 420.

Optionally, the spoiler 430 is conical. Of course, the spoiler 430 may have other tapered configurations.

In addition, the spoiler 430 may also have other shapes, specifically referring to fig. 9, and fig. 9 is a schematic structural view of a buffer according to another embodiment of the present application.

In some embodiments, the spoiler 430 is a hemispherical protrusion protruding from the inner surface of the first enclosing wall 4201, so as to prolong the service life of the spoiler 430. Of course, the spoiler 430 may also be a convex portion having other shapes such as a cylindrical shape.

In other embodiments, the spoiler 430 may be integrally connected to form a protrusion protruding from the inner surface of the surrounding wall 420 to disturb the water flow entering the bumper 400 through the opening 403. Alternatively, the spoiler 430 may be disposed on the inner wall 501 of the pump case 500 forming the water outlet passage 510, specifically, on the inner wall 501 of the water inlet 5101.

In the embodiment of the present application, the buffer member 400 and the pump case 500 may be applied to the pump head of a diaphragm booster pump, and may also be applied to the pump heads of other booster pumps.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.

In summary, the booster pump head 10 provided by the present application can utilize the spoiler 430 to disturb the water flow entering the water outlet channel 510 from the water inlet 5101, so as to implement the first step of buffering of the water flow; the rivers through the disturbance of vortex portion 430 can get into the buffering space in bolster 400, and flexible stagnant water wall 410 can accept the impact of rivers with enclosing wall 420 to the realization is to the second step buffering of rivers, and then rivers can be carried to delivery port 5102 and export outside the pump through apopore 404, has reduced the noise problem that high-pressure rivers impact pump case 500 and cause, also makes booster pump 1000 go out water more steady, has improved the pipeline overall stability of the equipment of installing booster pump 1000.

It should be noted that the terms "horizontal", "vertical" and the like do not imply that the components are absolutely required to be horizontal or vertical, but may be slightly inclined; the terms "parallel", "perpendicular" and the like are also intended to mean neither absolutely parallel nor perpendicular between the fittings, but rather may form an angular deviation. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined. Furthermore, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like, refer to an orientation or positional relationship that is based on the orientation or positional relationship shown in the drawings, or that is customarily placed during use of the product of the present application, but which is merely used to facilitate the description of embodiments of the present application and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present application.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

It is understood that "plurality" herein means at least two, e.g., two, three, etc., unless expressly stated otherwise. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. While the term "and/or" is merely one type of association that describes an associated object, it means that there may be three types of relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (13)

1. A booster pump head, said booster pump head comprising:

the water pump comprises a pump shell, wherein a water outlet channel is formed by surrounding the pump shell and is provided with a water inlet and a water outlet which are communicated;

the water outlet channel is arranged in the water outlet channel, the buffer part comprises a water stop wall and a surrounding wall, the surrounding wall is arranged around the water stop wall and is in sealing connection with the water stop wall, one end, close to the water inlet, of the surrounding wall is surrounded to form an opening, and the opening is communicated with the water inlet;

the water stopping wall is at least partially attached to the pump shell, the enclosing wall is at least partially attached to the pump shell, at least one water outlet hole is formed in the water stopping wall, and the water outlet hole is communicated with the water outlet hole.

2. The booster pump head of claim 1, wherein a baffle is raised on a surface of the enclosure wall facing away from the pump housing, the baffle being disposed at an end of the enclosure wall proximate to the water inlet.

3. A booster pump head as claimed in claim 2, wherein the baffle is provided in a plurality, the plurality of baffles being spaced about a reference axis perpendicular to the water stop wall.

4. A booster pump head as claimed in claim 2, wherein the spoiler is a conical projection, the apex of the conical projection being located at an end of the conical projection remote from the surrounding wall.

5. A booster pump head as claimed in claim 1, wherein reinforcing ribs are raised on part of the inner wall of the pump housing forming said water outlet passage.

6. A booster pump head as claimed in claim 5, wherein the water stop wall portion is attached to the reinforcing rib portion, and the water stop wall is further provided with an air vent which communicates with the water stop wall, the reinforcing rib portion and a part of the inner wall to form a cavity.

7. The booster pump head of claim 1, further comprising a pressure relief valve, wherein the pressure relief valve is disposed on the pump housing, the pump housing defines a pressure relief opening communicating with the water outlet channel, the pressure relief valve covers the pressure relief opening, and the water stop wall further defines a pressure relief hole communicating with the pressure relief opening.

8. A booster pump head according to claim 1, wherein the water stop wall comprises first and second water stop walls arranged at intervals, the enclosure wall comprises first and second enclosure walls connected to each other, the first enclosure wall is arranged around the first and second water stop walls, and the second enclosure wall is arranged around the first enclosure wall;

the second water stopping wall and the second enclosing wall are matched to form a clamping groove, a clamping convex part is arranged on the part of the inner wall of the pump shell forming the water outlet channel, and the clamping groove is clamped with the clamping convex part.

9. A booster pump head as claimed in claim 1, wherein the thickness of each of the water stop wall and the enclosure wall is greater than or equal to 1 mm and less than or equal to 3 mm.

10. A booster pump head as claimed in claim 1, wherein the area of the water outlet aperture is greater than or equal to 40 square millimetres and less than or equal to 200 square millimetres.

11. A booster pump head according to claim 6, wherein the vent has an area greater than or equal to 3 square millimetres and less than or equal to 20 square millimetres.

12. A booster pump head according to claim 7, wherein the pressure relief vent has an area greater than or equal to 2 square millimetres and less than or equal to 20 square millimetres.

13. A booster pump, characterized in that it comprises a booster pump head as claimed in any one of claims 1 to 12.

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