CN218439698U - Leather cup, pump head and pump - Google Patents

Abstract

The embodiment of the utility model provides a leather cup, pump head and pump. The pump head comprises a leather cup, an input channel suitable for being communicated with the leather cup, an output channel suitable for being communicated with the leather cup, and a driving piece connected with the leather cup; the driving piece is suitable for moving to stretch or compress the leather cup, so that the fluid is pumped into the leather cup through the input channel and pumped out of the leather cup through the output channel; the leather cup comprises a cavity part and a connecting part, wherein the cavity part is suitable for being respectively communicated with the input channel and the output channel, and the connecting part is suitable for connecting the cavity part and the driving part; the rigidity of at least one of the connecting part and the driving part is larger than that of the cavity part. Adopt the utility model discloses, through the support rigidity that increases the leather cup in suitable position under the prerequisite that keeps the leather cup to warp the pliability, not only can improve the delivery pressure and the efficiency of the energy transfer efficiency of leather cup in order to promote the pump, can not cause the holistic rigidity of leather cup too high and increase the required energy consumption of leather cup reciprocating motion again moreover, be favorable to the pump to promote efficiency under the low energy consumption.

Description

Leather cup, pump head and pump

Technical Field

The utility model relates to a fluid transport technical field especially relates to a leather cup, pump head and pump.

Background

As is well known, a pump is a mechanical device that conveys or pressurizes a fluid, and transfers mechanical energy of a prime mover or other external energy to the fluid to increase the energy of the fluid to achieve the conveyance or pressurization of the fluid.

At present, many pumps in the market realize fluid delivery by pushing a leather cup through a power mechanism and driving the leather cup to reciprocate. Moreover, in order to realize the reciprocating motion of the leather cup, the leather cup is usually made of flexible materials. However, in actual operation, the efficiency of energy transfer is reduced due to the flexibility of the cup, thereby reducing the efficiency of the pump.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a leather cup, pump head and pump are keeping the leather cup to warp support rigidity through increasing the leather cup in appropriate position under the flexible prerequisite, not only can promote the delivery pressure and the efficiency of pump, can not increase the energy consumption moreover.

Therefore, the embodiment of the utility model provides a following technical scheme:

an aspect of the embodiments of the present invention is to provide a cup for a pump head. The pump head includes an input passage adapted to communicate with the cup, an output passage adapted to communicate with the cup, and a drive member connected to the cup. The leather cup comprises a cavity part and a connecting part, wherein the cavity part is suitable for being respectively communicated with the input channel and the output channel, and the connecting part is suitable for connecting the cavity part and the driving part; the rigidity of the connecting portion is greater than that of the cavity portion.

Optionally, the connecting portion comprises a head portion adapted to connect to the driver member, and a transition portion between the head portion and the cavity portion; at least the transition portion of the transition portion and the head portion has a rigidity greater than a rigidity of the cavity portion.

Another aspect of the embodiments of the present invention is to provide a pump head. The pump head comprises a leather cup, an input channel suitable for being communicated with the leather cup, an output channel suitable for being communicated with the leather cup and a driving piece connected with the leather cup; the driving piece is suitable for moving to stretch or compress the leather cup, so that the fluid is pumped into the leather cup through the input channel and pumped out of the leather cup through the output channel; the packing cup comprises a cavity part and a connecting part, wherein the cavity part is suitable for being respectively communicated with the input channel and the output channel, and the connecting part is suitable for connecting the cavity part and the driving part; the rigidity of at least one of the connecting part and the driving part is larger than that of the cavity part.

Optionally, the connecting portion comprises a head portion adapted to connect to the driver, and a transition portion between the head portion and the cavity portion; at least the transition portion of the transition portion and the head portion has a rigidity greater than that of the cavity portion.

Optionally, the head portion comprises a head portion body and a head portion reinforcement portion adapted to be embedded in the head portion body, and the transition portion comprises a transition portion body and a transition reinforcement portion adapted to be embedded in the transition portion body, the transition reinforcement portion and the head portion reinforcement portion being integrally formed and having a rigidity greater than that of the cavity portion.

Optionally, the transition portion comprises a transition portion body and a transition enhancement portion adapted to be embedded within the transition portion body, the transition enhancement portion having a stiffness greater than a stiffness of the cavity portion.

Optionally, at least one of the transition body and the transition reinforcement includes a head receptacle, the head including a head body and a head extension connected with the head body, the head extension being embedded in the head receptacle to connect the head and the transition.

Optionally, the head portion has a stiffness greater than a stiffness of the cavity portion.

Optionally, the connecting portion includes a head portion adapted to connect with the cavity portion, and the driver includes a receiving hole adapted to receive the head portion, the head portion being inserted into the receiving hole and abutting an inner side of the receiving hole to improve rigidity at a connection of the connecting portion and the driver.

Optionally, an end surface of the receiving hole facing the cavity portion abuts against the cavity portion to improve rigidity of a connection portion where the connecting portion is connected to the driver.

Optionally, the head portion includes a guide post and a clamping portion extending outward in a radial direction of the guide post, the receiving hole includes a step located at an inner side thereof and disposed away from the cavity portion, the head portion has elasticity, and the clamping portion is adapted to be compressed to be inserted into the receiving hole with the guide post and to be retained by the step.

Optionally, the device comprises an upper cover, a valve seat, an input one-way valve and an output one-way valve; the upper cover is jointed with the valve seat to form an input channel and an output channel; the input one-way valve is arranged on one side of the valve seat, which is far away from the upper cover, and is suitable for opening the input channel when the leather cup is stretched and closing the input channel when the leather cup is compressed; the output one-way valve is arranged on one side of the valve seat close to the upper cover and is suitable for opening the output channel when the leather cup is compressed and closing the output channel when the leather cup is stretched.

Optionally, the upper cover is provided with an upper cover input chamber and an upper cover output chamber which open towards the valve seat; the valve seat is provided with a valve seat input cavity and a valve seat output cavity which are opened towards the upper cover; the upper cover input cavity and the valve seat input cavity are vertically jointed to form an input channel; the upper cover output chamber and the valve seat output chamber are joined up and down to form an output passage.

Optionally, the upper cover comprises an upper cover input aperture in communication with the input channel to receive the fluid and an upper cover output aperture in communication with the output channel to output the fluid; the valve seat comprises a valve seat input hole which is respectively communicated with the input channel and the packing cup so as to output the fluid from the input channel to the packing cup, and a valve seat output hole which is respectively communicated with the packing cup and the output channel so as to output the fluid from the packing cup to the output channel.

Optionally, an input check valve is disposed adjacent to the seat input aperture and adapted to open or close the seat input aperture to open or close the input channel; the output one-way valve is arranged close to the valve seat output hole and is suitable for opening or closing the valve seat output hole to open or close the output channel.

Optionally, the pump head comprises a seal between the upper cover and the valve seat to seal the inlet and outlet passages, respectively; the gasket comprises a first gasket through hole and a second gasket through hole; the first gasket through hole has an inner diameter adapted to the input passage and communicates the input passage between the upper cover and the valve seat; the second packing through hole has an inner diameter corresponding to the output passage and communicates the output passage between the upper cover and the valve seat.

Optionally, the pump head comprises a lower cover; the valve seat is combined with the lower cover to form an accommodating space suitable for accommodating the cavity part; the lower cover is provided with a through hole; the leather cup penetrates through the through hole, the cavity body is located in the accommodating space, and the connecting portion extends to the outside of the lower cover to be connected with the driving piece.

Optionally, the pump head comprises at least two input channels, at least two cups and at least two output channels; and the input channel, the leather cup and the output channel are correspondingly connected one by one.

Optionally, at least two leather cups are connected into a whole through respective cavity parts; the driving piece comprises a swinging piece; the swinging piece is respectively connected with the connecting parts of the at least two leather cups and is suitable for swinging to sequentially stretch or sequentially compress each leather cup of the at least two leather cups.

It is another aspect of the embodiments of the present invention to provide a pump. The pump comprises the pump head and a driving mechanism; the driving mechanism is connected with the driving piece and is suitable for driving the driving piece to move.

Compared with the prior art, the utility model discloses technical scheme has beneficial effect.

For example, on the premise of keeping the deformation flexibility of the cup, the supporting rigidity of the cup is increased at a proper position, so that the energy transfer efficiency of the cup can be improved to improve the conveying pressure and efficiency of the pump, the situation that the rigidity of the whole cup is too high to increase the energy consumption required by the reciprocating motion of the cup is avoided, and the efficiency of the pump is improved under low energy consumption is facilitated.

Drawings

FIG. 1 is an overall schematic view of a pump according to an embodiment of the present invention;

FIG. 2 is an exploded view of a pump according to an embodiment of the present invention;

FIG. 3 is a bottom view of the cup in an embodiment of the present invention;

FIG. 4 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is another bottom view of the cup in an embodiment of the present invention;

FIG. 6 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 5;

FIG. 7 is a bottom view of the embodiment of the present invention after the cup is connected to the driving member;

FIG. 8 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 7;

FIG. 9 is another bottom view of the cup in an embodiment of the present invention;

FIG. 10 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 9;

FIG. 11 is another bottom view of the embodiment of the present invention after the cup is connected to the driving member;

fig. 12 isbase:Sub>A cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 11.

Description of the reference numerals:

1 pump, 10 pump heads, 11 packing cups, 111 cavity parts, 112 connecting parts, 12 driving parts, 121 supporting arms, 122 receiving holes, 13 upper covers, 131 upper cover input interfaces, 132 upper cover output interfaces, 14 valve seats, 141 valve seat input cavities, 142 valve seat output cavities, 15 input one-way valves, 16 output one-way valves, 161 reinforcing ribs, 17 sealing gaskets, 171 first sealing gasket through holes, 172 second sealing gasket through holes, 18 lower covers, 181 accommodating spaces, 20 driving mechanisms, 21 shells, 30 heads, 31 head bodies, 32 head reinforcing parts, 33 head extending parts, 34 guide pillars, 35 clamping parts, 40 transition parts, 41 transition part bodies, 42 transition reinforcing parts and 43 head accommodating cavities.

Detailed Description

In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is to be understood that the following description is only illustrative of the present invention and is not to be taken in a limiting sense. Also, descriptions of the same or similar components in different embodiments and descriptions of components, features, effects, and the like belonging to the related art may be omitted.

In addition, for convenience of description, only a part, not all of the structure related to the present invention is shown in the drawings. Moreover, the same reference numbers may be used throughout the drawings to refer to the same or like parts throughout the different embodiments.

The embodiment of the utility model provides a leather cup, pump head and pump.

FIG. 1 is an overall schematic view of a pump according to an embodiment of the present invention; fig. 2 is an exploded view of the pump according to an embodiment of the present invention.

Referring to fig. 1 and 2, a pump 1 provided by the present invention includes a pump head 10 and a driving mechanism 20, wherein the driving mechanism 20 is connected with the pump head 10 and is adapted to drive the pump head 10 to work.

Specifically, the pump head 10 may include a cup 11, an input passage adapted to communicate with the cup 11, an output passage adapted to communicate with the cup 11, and a drive member 12 connected to the cup 11.

In an embodiment, the driving member 12 is adapted to move under the driving of the driving mechanism 20 to stretch or compress the cup 11, so that the fluid is pumped into the cup 11 through the input channel and out of the cup 11 through the output channel.

In some embodiments, the fluid may comprise a liquid, a gas, or suspended particulate matter or the like capable of flowing and suitable for delivery by the pump 1.

In some embodiments, the fluid may be input from a fluid supply external to the pump 1. For example, when water is delivered by the pump 1, water may be input from a water pipe or tank external to the pump 1.

In some embodiments, the fluid may be output to a fluid recipient external to the pump 1. For example, when the pump 1 is applied to a dental irrigator and the irrigation of teeth is performed by water, the water may be delivered to a nozzle of the dental irrigator outside the pump 1.

In some embodiments, the pump head 10 may also include an upper cover 13, a valve seat 14, an inlet check valve 15, and an outlet check valve 16.

Specifically, the upper cover 13 and the valve seat 14 are joined to form an input passage and an output passage that are spatially independent of each other.

In some embodiments, the upper cover 13 is provided with an upper cover input chamber and an upper cover output chamber that open toward the valve seat 14. The valve seat 14 is provided with a valve seat input chamber 141 and a valve seat output chamber 142 that open toward the upper cover 13. Wherein the upper cover input chamber and the upper cover output chamber are separated from each other, the valve seat input chamber 141 and the valve seat output chamber 142 are separated from each other, the upper cover input chamber and the valve seat input chamber 141 are vertically joined to form an input passage, and the upper cover output chamber and the valve seat output chamber 142 are vertically joined to form an output passage.

Further, the upper cover 13 is provided with an upper cover input hole communicated with the upper cover input chamber and an upper cover output hole communicated with the upper cover output chamber. The upper cover input hole is suitable for receiving fluid so that the fluid can be input into the input channel, and the upper cover output hole is suitable for outputting the fluid in the output channel.

With continued reference to fig. 2, in some embodiments, the upper lid 13 may further include an upper lid input interface 131 in communication with the upper lid input aperture, and an upper lid output interface 132 in communication with the upper lid output aperture. Wherein, the upper cover input interface 131 and the upper cover output interface 132 can both extend out of the upper cover 13 in a direction away from the valve seat 14, so as to be connected with the fluid donor through the upper cover input interface 131 to receive the fluid and connected with the fluid acceptor through the upper cover output interface 132 to output the fluid.

In a specific implementation, an inlet check valve 15 is mounted on the side of the valve seat 14 facing away from the upper cover 13, which is adapted to open the inlet passage when the cup 11 is stretched and to close the inlet passage when the cup 11 is compressed. An outlet check valve 16 is mounted on the side of the valve seat 14 adjacent the upper cover 13 and is adapted to open the outlet passage when the cup 11 is compressed and to close the outlet passage when the cup 11 is stretched.

In some embodiments, the valve seat 14 is further provided with a valve seat input hole in communication with the valve seat input chamber 141 and the cup 11, respectively, and a valve seat output hole in communication with the valve seat output chamber 142 and the cup 11, respectively.

In some embodiments, an input check valve 15 may be disposed adjacent to the seat input aperture and adapted to open or close the seat input aperture to open or close the input channel.

In some embodiments, the valve seat 14 may be further provided with an input check valve receiving cavity at a side thereof facing away from the upper cover 13, respectively communicating with the valve seat input hole and the cup 11, to receive the input check valve 15.

In some embodiments, the inlet check valve 15 may be an umbrella valve and is secured to the valve seat 14 by an umbrella stem.

In particular implementations, the output check valve 16 may be disposed adjacent to the seat output orifice and adapted to open or close the seat output orifice to open or close the output passage.

In some embodiments, the output check valve 16 may be housed within the valve seat output chamber 142.

With continued reference to fig. 2, in some embodiments, the output check valve 16 may also be an umbrella valve and may be provided with a rib 161 extending radially outwardly of the umbrella stem below the umbrella stem.

In some embodiments, the upper cover 13 is further provided with a press-fit ring. The press ring is suitable for forming a connecting hole communicated with the output hole of the upper cover.

In a specific implementation, the umbrella handle of the output check valve 16 is inserted into the connecting hole and pressed on the reinforcing rib 161 of the output check valve 16 through the pressing ring to limit the movement of the output check valve 16 between the upper cover 13 and the valve seat 14.

Further, a space is provided between a portion of the umbrella stem inserted into the connection hole and an inner side of the connection hole to allow fluid to pass therethrough.

With continued reference to FIG. 2, the pump head 10 may also include a seal 17 between the upper cover 13 and the valve seat 14. The gasket 17 is adapted to seal the inlet and outlet passages between the upper cover 13 and the valve seat 14, respectively.

In particular implementations, the gasket 17 may include a first gasket through hole 171 and a second gasket through hole 172. Wherein the first packing through-hole 171 has an inner diameter adapted to the input passage and communicates the input passage between the upper cover 13 and the valve seat 14. The second packing through-hole 172 has an inner diameter corresponding to the output passage and communicates the output passage between the upper cover 13 and the valve seat 14.

In the embodiment of the present invention, the input channel and the output channel are respectively communicated with the leather cup 11.

With continued reference to fig. 2, the cup 11 may include a cavity portion 111 adapted to communicate with the input and output channels, respectively, and a connecting portion 112 adapted to connect the cavity portion 111 and the driver 12.

In implementations, the pump head 10 may also include a lower cover 18.

Specifically, the valve seat 14 is engaged with the lower cover 18 to form an accommodating space 181 adapted to accommodate the cavity portion 111 of the cup 11. Also, the lower cover 18 further includes a through hole 182. The cup 11 passes through the through hole 182 to locate the cavity 111 in the receiving space 181 and extend the connecting portion 112 to the outside of the lower cover 17 for connecting the driving member 12.

In some embodiments, snap-fit or bolt connections may be used between the upper cover 13 and the valve seat 14, between the valve seat 14 and the lower cover 18, and between the upper cover 13, the valve seat 14, and the lower cover 18.

In some embodiments, the pump head 10 may include an input channel, a cup 11, and an output channel.

In other embodiments, the pump head 10 may further include at least two input channels, at least two cups 11, and at least two output channels. And the input channel, the leather cup 11 and the output channel are correspondingly connected one by one.

In a specific implementation, one of the at least two input channels is communicated with the input hole of the upper cover, and the at least two input channels are communicated with each other. Thus, all input channels can be supplied with fluid through one input hole of the upper cover.

For example, in some embodiments, at least two input channels may communicate with each other through respective cover input chambers and with the cover input aperture through one of the cover input chambers.

In a specific implementation, at least two cups 11 may be connected into a whole through respective cavity portions 111. Accordingly, the drive member 12 may comprise an oscillating member. The swinging member is connected with the connecting parts 112 of the at least two leather cups 11 respectively and is suitable for swinging to sequentially stretch or sequentially compress each leather cup 11 in the at least two leather cups 11.

For example, in some embodiments, the pump head 10 may include three input channels, three cups 11, and three output channels. And the input channel, the leather cup 11 and the output channel are correspondingly connected one by one.

In a specific implementation, three cups 11 may be connected together by respective cavity portions 111. Accordingly, the drive member 12 may comprise an oscillating member. The swinging member is connected with the connecting portions 112 of the three cups 11, respectively, and is adapted to swing to sequentially stretch or sequentially compress each cup 11 of the three cups 11.

In some embodiments, the driving member 12 may include three supporting arms 121 connected together, and the three supporting arms 121 are respectively connected with the connecting portions 112 of the three leather cups 11 in a one-to-one correspondence.

Further, the driving member 12 further includes a driving coupling portion coupled to the coupling portions of the three support arms 121 to couple the driving mechanism 20.

In embodiments where the pump head 10 includes an input channel, a cup 11 and an output channel, the drive member 12 may include only a support arm 121 and drive connection to the support arm 121 to connect to the drive mechanism 20.

In some embodiments, the pump 1 further comprises a housing 21 adapted to house the drive mechanism 20. The housing 21 is open to the lower cover 18 of the pump head 10 and is adapted to cooperate with the lower cover 18 to connect the housing 21 and the pump head 10.

In some embodiments, a snap-fit or bolt connection may be used between the lower cover 18 and the housing 21 of the pump head 10.

In some embodiments, the drive mechanism 20 may include a motor disposed within the housing 21, an eccentric shaft connected to an output shaft of the motor, and a steel needle connected to the eccentric shaft. The steel needle is adapted to engage the drive connection to connect the drive mechanism 20 and the pump head 10.

In a specific implementation, the motor can be energized to rotate the motor-driven deflection shaft, and the steel needle swings the driving member 12 of the pump head 10 to stretch or compress the cup 11, so that the diaphragm of the input check valve 15 moves away from the valve seat input hole to pump fluid into the cup 11 through the input channel, or the diaphragm of the output check valve 16 moves away from the valve seat output hole to pump fluid in the cup 11 through the output channel.

In the embodiment of the present invention, the rigidity of at least one of the connecting portion 112 of the cup 11 and the connecting portion 112 and the driving member 12 is greater than the rigidity of the cavity portion 111.

Specifically, the rigidity of the connecting portion 112 is greater than that of the cavity portion 111. Alternatively, the rigidity of the connection portion 112 to the driver 12 is greater than the rigidity of the cavity portion 111. Alternatively, the rigidity of the connecting portion 112 and the driver 12 are both greater than the rigidity of the cavity portion 111.

FIG. 3 is a bottom view of the cup in an embodiment of the present invention; FIG. 4 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 3; FIG. 5 is another bottom view of the cup in an embodiment of the present invention; FIG. 6 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 5; FIG. 7 is a bottom view of the embodiment of the present invention after the cup is connected to the driving member; FIG. 8 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 7; FIG. 9 is a bottom view of a cup in accordance with an embodiment of the present invention; FIG. 10 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 9; FIG. 11 is another bottom view of the embodiment of the present invention showing the cup attached to the driving member; fig. 12 isbase:Sub>A cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 11.

Referring to fig. 3-6, the connecting portion 112 may include a head portion 30 adapted to connect to the driver 12, and a transition portion 40 located between the head portion 30 and the cavity portion 111. Wherein at least the transition portion 40 of the transition portion 40 and the head portion 30 has a stiffness greater than a stiffness of the cavity portion 111.

Specifically, the transition portion 40 has a rigidity greater than that of the cavity portion 111. Alternatively, the head portion 30 has a rigidity greater than that of the cavity portion 111. Alternatively, the transition portion 40 and the head portion 30 are each more rigid than the cavity portion 111.

Referring to fig. 3 and 4, in some embodiments, the head 30 includes a head body 31 and a head reinforcement 32 adapted to be embedded in the head body 31, and the transition 40 includes a transition body 41 and a transition reinforcement 42 adapted to be embedded in the transition body 41. Wherein the transition reinforcement 42 and the head reinforcement 32 are integrally formed and have a rigidity greater than that of the cavity portion 111.

Referring to fig. 5 and 6, in some embodiments, the transition 40 includes a transition body 41 and a transition reinforcement 42 adapted to be embedded within the transition body 41, the transition reinforcement 42 having a stiffness greater than the cavity portion 111.

Referring to fig. 7 and 8, in some embodiments, the transition 40 includes a transition body 41 and a transition reinforcement 42 adapted to be embedded within the transition body 41, the transition reinforcement 42 having a stiffness greater than the cavity portion 111. And, at least one of the transition portion body 41 and the transition reinforcing portion 42 includes a head receiving cavity 43, the head 30 includes a head body 31 and a head extension 33 connected to the head body 31, and the head extension 33 is inserted into the head receiving cavity 43 to connect the head 30 and the transition portion 40.

In some embodiments, a threaded connection may be used between the head extension 33 and the head receiving cavity 43.

Referring to fig. 9 and 10, in some embodiments, the transition 40 includes a transition body 41 and a transition reinforcement 42 adapted to be embedded within the transition body 41, the transition reinforcement 42 having a stiffness greater than the cavity portion 111. At least one of the transition body 41 and the transition reinforcement 42 includes a head receiving cavity 43, the head 30 includes a head body 31 and a head extension 33 connected to the head body 31, and the head extension 33 is inserted into the head receiving cavity 43 to connect the head 30 and the transition 40. The head 30, including the head body 31 and the head extension 33, has a rigidity higher than that of the cavity 111.

Referring to fig. 11 and 12, in some embodiments, the connecting portion 112 includes a head portion 30 adapted to connect with the cavity portion 111, and the driver 12 includes a receiving hole 122 adapted to receive the head portion 30, the head portion 30 being inserted into the receiving hole 122 and abutting an inner side of the receiving hole 122 to increase rigidity at the connection of the connecting portion 112 with the driver 12.

In some embodiments, the head 30 includes a guide post 34 and a clamping portion 35 extending radially outward of the guide post 34, the receiving hole 122 includes a step located at an inner side thereof and facing away from the cavity portion 111, the head 30 has elasticity, and the clamping portion 35 is adapted to be compressed to be inserted into the receiving hole 122 along with the guide post 34 and to be stopped by the step to fixedly connect the cup 11 and the driving member 12.

In some embodiments, the end surface of the receiving hole 122 facing the cavity portion 111 abuts against the cavity portion 111 to increase the rigidity of the connection portion 112 to the driver 12.

In the embodiment of the present invention, the shapes and structures of the head reinforcing portion 32 and the transition reinforcing portion 42 are not limited.

In some embodiments, the cavity 111 and its non-reinforced portion of the cup 11 may both be made of an elastomeric material. Such as silicone rubber, etc.

In some embodiments, the head 30, head reinforcement 32, and transition reinforcement 42, which are more rigid than the cavity portion 111, may all be rigid plastic. The kind of the hard plastic is not limited here.

Based on the technical scheme, on the premise of keeping the deformation flexibility of the cup 11, the supporting rigidity of the cup 11 is increased at a proper position, so that the energy transfer efficiency of the cup 11 can be improved to improve the conveying pressure and efficiency of the pump 1, the energy consumption required by the reciprocating motion of the cup 11 due to too high integral rigidity of the cup 11 cannot be increased, and the efficiency of the pump 1 can be improved under low energy consumption.

While specific embodiments of the invention have been described above, these embodiments are not intended to limit the scope of the disclosure, even where only a single embodiment is described with respect to a particular feature. The examples of features provided in the present disclosure are intended to be illustrative, not limiting, unless expressly stated otherwise. In particular implementations, the features of one or more dependent claims may be combined with those of the independent claims as technically feasible according to the actual requirements, and the features of the respective claims may be combined in any appropriate manner and not merely in the specific combinations enumerated in the claims.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected by one skilled in the art without departing from the spirit and scope of the invention, as defined in the appended claims.

Claims (20)

1. A cup (11), the cup (11) for a pump head (10), the pump head (10) comprising an input channel adapted to communicate with the cup (11), an output channel adapted to communicate with the cup (11), and a driving member (12) connected to the cup (11), characterized in that the cup (11) comprises a cavity portion (111) adapted to communicate with the input channel and the output channel, respectively, and a connecting portion (112) adapted to connect the cavity portion (111) and the driving member (12); the connecting portion (112) has a rigidity greater than that of the cavity portion (111).

2. Cup (11) according to claim 1, characterised in that said connection portion (112) comprises a head portion (30) suitable for connecting said driving element (12) and a transition portion (40) between said head portion (30) and said cavity portion (111); the transition portion (40) and at least the transition portion (40) of the head portion (30) have a stiffness greater than a stiffness of the cavity portion (111).

3. A pump head (10) comprising a cup (11), an input passage adapted to communicate with the cup (11), an output passage adapted to communicate with the cup (11), and a drive member (12) connected to the cup (11); the drive member (12) being adapted to move to stretch or compress the cup (11) to cause fluid to be pumped into the cup (11) via the input channel and out of the cup (11) via the output channel; the packing cup (11) comprises a cavity part (111) which is suitable for being communicated with the input channel and the output channel respectively, and a connecting part (112) which is suitable for connecting the cavity part (111) and the driving part (12); the rigidity of at least one of the connecting part (112) and the driving part (12) is larger than that of the cavity part (111).

4. The pump head (10) of claim 3, wherein the connecting portion (112) comprises a head portion (30) adapted to connect to the drive member (12), and a transition portion (40) between the head portion (30) and the chamber portion (111); the transition portion (40) and at least the transition portion (40) of the head portion (30) have a stiffness greater than a stiffness of the cavity portion (111).

5. The pump head (10) of claim 4, wherein the head portion (30) comprises a head body (31) and a head reinforcement portion (32) adapted to be embedded in the head body (31), the transition portion (40) comprises a transition portion body (41) and a transition reinforcement portion (42) adapted to be embedded in the transition portion body (41), the transition reinforcement portion (42) and the head reinforcement portion (32) being integrally formed and having a stiffness greater than a stiffness of the cavity portion (111).

6. The pump head (10) of claim 4, wherein the transition portion (40) comprises a transition portion body (41) and a transition enhancement portion (42) adapted to be embedded within the transition portion body (41), the transition enhancement portion (42) having a stiffness greater than a stiffness of the chamber portion (111).

7. The pump head (10) of claim 6, wherein at least one of the transition body (41) and the transition enhancement (42) comprises a head receptacle (43), the head (30) comprising a head body (31) and a head extension (33) connected to the head body (31), the head extension (33) being embedded in the head receptacle (43) to connect the head (30) and the transition (40).

8. The pump head (10) of claim 7, wherein the head portion (30) has a stiffness greater than a stiffness of the chamber portion (111).

9. The pump head (10) of claim 3, wherein the connecting portion (112) comprises a head portion (30) adapted to connect with the cavity portion (111), and the drive member (12) comprises a receiving aperture (122) adapted to receive the head portion (30), the head portion (30) being inserted into the receiving aperture (122) and abutting an inner side of the receiving aperture (122) to increase a rigidity at a connection of the connecting portion (112) with the drive member (12).

10. The pump head (10) of claim 9, wherein an end face of the receiving bore (122) facing the chamber portion (111) abuts the chamber portion (111) to increase the stiffness at the connection of the connecting portion (112) with the drive member (12).

11. Pump head (10) according to claim 9, characterized in that the head (30) comprises a guide post (34) and a snap-in portion (35) extending outwardly in a radial direction of the guide post (34), the receiving hole (122) comprises a step at its inner side and arranged away from the cavity portion (111), the head (30) has elasticity, the snap-in portion (35) is adapted to be compressed to be inserted into the receiving hole (122) with the guide post (34) and to be retained by the step.

12. The pump head (10) of claim 3, comprising an upper cover (13), a valve seat (14), an inlet check valve (15) and an outlet check valve (16); the upper cover (13) and the valve seat (14) are engaged to form the input passage and the output passage; the input one-way valve (15) is mounted on the side of the valve seat (14) facing away from the upper cover (13) and is adapted to open the input channel when the cup (11) is stretched and to close the input channel when the cup (11) is compressed; the output one-way valve (16) is mounted on the side of the valve seat (14) close to the upper cover (13) and is adapted to open the output channel when the cup (11) is compressed and to close the output channel when the cup (11) is stretched.

13. A pump head (10) according to claim 12, wherein the upper cover (13) is provided with an upper cover input chamber and an upper cover output chamber which are open towards the valve seat (14); the valve seat (14) is provided with a valve seat input chamber (141) and a valve seat output chamber (142) which are open toward the upper cover (13); the upper cover input cavity and the valve seat input cavity (141) are combined up and down to form the input channel; the upper cover output chamber and the valve seat output chamber (142) are joined up and down to form the output passage.

14. A pump head (10) as claimed in claim 12, wherein the upper cover (13) comprises an upper cover input aperture in communication with the input channel to receive the fluid and an upper cover output aperture in communication with the output channel to output the fluid; the valve seat (14) comprises a valve seat input hole communicated with the input channel and the packing cup (11) respectively so as to output the fluid from the input channel to the packing cup (11) and a valve seat output hole communicated with the packing cup (11) and the output channel respectively so as to output the fluid from the packing cup (11) to the output channel.

15. The pumphead (10) of claim 14, wherein the input check valve (15) is disposed adjacent to the valve seat input aperture and is adapted to open or close the valve seat input aperture to open or close the input channel; the output check valve (16) is disposed adjacent to the seat output aperture and is adapted to open or close the seat output aperture to open or close the output passage.

16. The pump head (10) of claim 12, wherein the pump head (10) comprises a sealing gasket (17) between the upper cover (13) and the valve seat (14) to seal the input and output channels, respectively; the gasket (17) includes a first gasket through hole (171) and a second gasket through hole (172); the first gasket through hole (171) has an inner diameter corresponding to the input passage and communicates the input passage between the upper cover (13) and the valve seat (14); the second gasket through hole (172) has an inner diameter corresponding to the output passage and communicates the output passage between the upper cover (13) and the valve seat (14).

17. The pump head (10) of claim 12, wherein the pump head (10) comprises a lower cover (18); the valve seat (14) is engaged with the lower cover (18) to form an accommodating space (181) adapted to accommodate the cavity portion (111); the lower cover (18) has a through hole; the leather cup (11) penetrates through the through hole, the cavity part (111) is located in the accommodating space (181), and the connecting part (112) extends to the outside of the lower cover (18) to be connected with the driving part (12).

18. A pump head (10) as claimed in any one of claims 3 to 17, wherein said pump head (10) comprises at least two said input channels, at least two said cups (11) and at least two said output channels; and the input channel, the leather cup (11) and the output channel are correspondingly connected one by one.

19. The pump head (10) of claim 18, wherein at least two of said cups (11) are connected together by a respective said chamber portion (111); the drive member (12) comprises an oscillating member; the swinging piece is respectively connected with the connecting parts (112) of the at least two leather cups (11) and is suitable for swinging to sequentially stretch or sequentially compress each leather cup (11) in the at least two leather cups (11).

20. A pump, comprising a pump head (10) according to any one of claims 3 to 19 and a drive mechanism (20); the driving mechanism (20) is connected with the driving part (12) and is suitable for driving the driving part (12) to move.

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