CN220941321U - Push pump with adjustable ejection quantity - Google Patents

Abstract

The utility model discloses a push pump with adjustable ejection quantity, which comprises a pump body, a push assembly and a first reset piece, wherein the pump body is provided with a pump cavity and an input channel, the input channel is communicated with the pump cavity, and a first valve structure is arranged in the input channel or between the input channel and the pump cavity; one end of the pressing component is inserted into the pump cavity, and the pressing component can slide along the pump cavity; the first reset piece is arranged between one end of the pressing component and the pump body and is used for driving one end of the pressing component to move towards the inlet of the pump cavity for reset; the pump body or the pressing component is provided with an output channel, the output channel is communicated with the pump cavity, a second valve structure is arranged in the output channel or between the output channel and the pump cavity, and the length of the pressing component is adjustable so that the stroke range of one end of the pressing component in the pump cavity is adjustable. The push pump provided by the utility model can adjust the ejection quantity according to the needs, and is more convenient to use.

Description

Push pump with adjustable ejection quantity

Technical Field

The utility model relates to the technical field of pressing pumps, in particular to a pressing pump capable of adjusting ejection quantity.

Background

Among the prior art, press the pump and generally include the pump body and the valve rod, the pump body is provided with the pump chamber and with the input pipeline of pump chamber intercommunication, input pipeline is located the lower extreme of the pump body, be provided with the check valve between input pipeline and the pump chamber, the pump chamber is inserted to valve rod one end, and the one end of valve rod is provided with the piston, the piston is located the pump chamber, the inside drain channel that is provided with and communicates with the pump chamber of valve rod, the valve rod upper end is provided with the nozzle with the drain channel intercommunication, the lower extreme movable mounting of drain channel has the valve stem that is used for controlling drain channel and pump chamber break-make, be provided with reset first spring between valve rod and the pump body, from this, through the upper and lower slip of valve rod, can realize from nozzle blowout material and pump chamber suction material. However, the conventional push pump has problems in that: the spraying amount can not be adjusted according to the needs, and the use is inconvenient.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the pressing pump with the adjustable ejection amount, which can adjust the ejection amount according to the needs and is more convenient to use.

According to the embodiment of the utility model, the push pump with the adjustable ejection amount comprises a pump body, a push assembly and a first reset piece, wherein the pump body is provided with a pump cavity and an input channel, the input channel is communicated with the pump cavity, and a first valve structure is arranged in the input channel or between the input channel and the pump cavity; one end of the pressing component is inserted into the pump cavity, and the pressing component can slide along the pump cavity; the first reset piece is arranged between one end of the pressing component and the pump body and is used for driving one end of the pressing component to move towards the inlet of the pump cavity for reset; the pump body or the pressing component is provided with an output channel, the output channel is communicated with the pump cavity, a second valve structure is arranged in the output channel or between the output channel and the pump cavity, and the length of the pressing component is adjustable so that the stroke range of one end of the pressing component in the pump cavity is adjustable.

According to the embodiment of the utility model, the push pump with the adjustable ejection amount has at least the following beneficial effects: according to the pressing pump provided by the utility model, when the pressing component is pressed down, the pressure in the pump cavity can be increased, at the moment, the first valve is closed, the second valve structure is opened, and then the material in the pump cavity can be ejected from the output channel, after the pressing component is released, the first reset piece can drive one end of the pressing component to move and reset towards the inlet of the pump cavity, at the moment, the pressure in the pump cavity is reduced, the first valve is opened, the second valve structure is closed, and therefore, the material can be sucked into the pump cavity from the input channel.

According to some embodiments of the utility model, the pressing assembly comprises a first valve rod, a second valve rod and an adjusting device, wherein one end of the first valve rod is inserted into the pump cavity, the other end of the first valve rod is provided with a containing cavity, one end of the second valve rod is inserted into the containing cavity and can slide along the containing cavity, the adjusting device is arranged between the first valve rod and the second valve rod, and the adjusting device is used for adjusting the relative position between the first valve rod and the second valve rod.

According to some embodiments of the utility model, the second valve rod is provided with a mounting channel, a side wall of the mounting channel is provided with a avoidance hole, the inner wall of the accommodating cavity is provided with at least two limiting holes at intervals along the length direction of the first valve rod, the avoidance hole can be opposite to any one of the limiting holes, the adjusting device comprises a clamping column, an unlocking rod and a second reset piece, the clamping column is movably inserted into the avoidance hole, the unlocking rod is slidably inserted into the mounting channel, the unlocking rod is in transmission connection with the clamping column, the second reset piece can drive the clamping column to be movably inserted into any one of the limiting holes, and the unlocking rod can drive the clamping column to be moved to be separated from the corresponding limiting hole.

According to some embodiments of the utility model, the clamping post is connected with a connecting rod, one end of the connecting rod away from the clamping post is rotatably connected with the unlocking rod, the adjusting device comprises a supporting piece, the supporting piece is arranged in the mounting channel, the supporting piece is positioned between the clamping post and the unlocking rod, and the supporting piece is in abutting connection with the lower side or the upper side of the connecting rod.

According to some embodiments of the utility model, the connecting rod is arranged obliquely, the upper end of the connecting rod is connected with the clamping column, the lower end of the connecting rod is connected with the connecting rod in a rotating way, and the supporting piece is positioned on the lower side of the connecting rod.

According to some embodiments of the utility model, the mounting channel comprises a first mounting hole and a second mounting hole which are arranged along the length direction of the second valve rod, the first mounting hole is communicated with the second mounting hole, the first mounting hole is positioned at one side of the second mounting hole away from the first valve rod, the first mounting hole is larger than the second mounting hole, the unlocking rod is provided with a pressing cover, the second reset piece comprises a first spring sleeved on the unlocking rod, the first spring is positioned in the first mounting hole, one end of the first spring is abutted against the pressing cover, and the other end of the first spring is abutted against the bottom wall of the first mounting hole.

According to some embodiments of the utility model, a limiting structure is arranged between the pressing assembly and the pump body, and the limiting structure is used for limiting the other end of the pressing assembly to enter the pump cavity.

According to some embodiments of the utility model, the limiting structure comprises a limiting part arranged at the other end of the pressing component, and the limiting part can be mutually matched and abutted with the pump body.

According to some embodiments of the utility model, a guide structure is provided between the second valve stem and the first valve stem.

According to some embodiments of the utility model, the pump body is provided with an outlet duct, the outlet of which is provided with a nozzle, the outlet duct being formed by the nozzle communicating with the outlet duct.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

Fig. 1 is a schematic view showing an internal structure of a push pump (when a length of a push assembly is minimized) capable of adjusting a discharge amount according to an embodiment of the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a schematic diagram showing an internal structure of a pump (when the length of the pressing assembly is the largest) with adjustable ejection amount according to an embodiment of the present utility model;

FIG. 4 is an enlarged view at B in FIG. 3;

fig. 5 is a schematic view showing an external structure of a push pump of fig. 1 in which a discharge amount is adjustable.

Reference numerals:

pump body 100, pump chamber 110, inlet 111, input channel 120, output conduit 130, nozzle 140, output channel 150, pressing assembly 200, first valve stem 210, receiving chamber 211, limiting aperture 212, second valve stem 220, mounting channel 221, first mounting aperture 2211, second mounting aperture 2212, evasion aperture 222, limiting portion 223, guide bar 224, adjustment device 230, clamping post 231, unlocking lever 232, pressing cover 2321, second reset member 233, connecting rod 234, support member 235, piston 240, first reset member 300, first valve structure 400, second valve structure 500.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 5, a push pump with adjustable ejection amount according to an embodiment of the present utility model includes a pump body 100, a push assembly 200, and a first reset member 300, wherein the pump body 100 is provided with a pump chamber 110 and an input channel 120, the pump chamber 110 has an inlet 111, the input channel 120 is communicated with the pump chamber 110, and a first valve structure 400 is provided in the input channel 120 or between the input channel 120 and the pump chamber 110; one end of the pressing assembly 200 is inserted into the pump chamber 110 from the inlet 111 of the pump chamber 110, and the pressing assembly 200 can slide along the pump chamber 110; the first reset element 300 is disposed between one end of the pressing assembly 200 and the pump body 100, and the first reset element 300 is used for driving one end of the pressing assembly 200 to move towards the inlet 111 of the pump cavity 110 for reset; the pump body 100 is provided with an output channel 150, the output channel 150 is communicated with the pump cavity 110, a second valve structure 500 is arranged in the output channel 150 or between the output channel 150 and the pump cavity 110, and the length of the pressing assembly 200 is adjustable, so that the stroke range of one end of the pressing assembly 200 in the pump cavity 110 is adjustable.

According to the pressing pump provided by the utility model, when the pressing component 200 is pressed down, the internal pressure of the pump cavity 110 can be increased, at the moment, the first valve is closed, the second valve structure 500 is opened, then the material in the pump cavity 110 can be sprayed out from the output channel 150, after the pressing component 200 is released, the first reset piece 300 can drive one end of the pressing component 200 to move and reset towards the inlet 111 of the pump cavity 110, at the moment, the internal pressure of the pump cavity 110 is reduced, the first valve is opened, the second valve structure 500 is closed, so that the material can be sucked into the pump cavity 110 from the input channel 120, wherein, as the first reset piece 300 can drive one end of the pressing component 200 to move and reset towards the inlet 111 of the pump cavity 110, namely, the initial position of one end of the pressing component 200 in the pump cavity 110 is determined, when the length of the pressing component 200 is adjusted, the position of the other end of the pressing component 200 relative to the pump body 100 can be changed, so that the pressing travel range of the other end of the pressing component 200 is changed, namely, the travel range of the pressing component 200 which moves towards the inlet 111 is changed, and the depth of the pressing component 200 can be moved towards the pump cavity 110 is changed, so that the material can be conveniently sprayed out according to the requirement.

Referring to fig. 1 and 3, according to the above arrangement, the stroke range of one end of the pressing assembly 200 in the pump chamber 110 is adjustable, i.e., the stroke range of one end of the pressing assembly 200 in the pump chamber 110 has a minimum value and a maximum value. In order to achieve the above-mentioned configuration, when the length of the pressing assembly 200 is the smallest, the pressing stroke range of the other end of the pressing assembly 200 should be smaller than the maximum value of the stroke range of one end of the pressing assembly 200 in the pump chamber 110, so that when the length of the pressing assembly 200 is adjusted within a certain range, the pressing stroke range of the other end of the pressing assembly 200 can be changed, and thus the stroke range of one end of the pressing assembly 200 in the pump chamber 110 can be changed.

Referring to fig. 1 and 5, it is conceivable that in some embodiments, the pump body 100 is provided with an output pipe 130, a nozzle 140 is disposed at an outlet of the output pipe 130, and an output channel 150 is formed by the nozzle 140 communicating with the output pipe 130, so that the setting of the output channel 150 can be completed, and the setting of the output channel 150 is convenient, and the structure of the whole pump body 100 is simpler.

It should be noted that, in other embodiments, the output channel 150 may be provided with the output channel 150, for example, in other embodiments, the pressing assembly 200 is provided with the nozzle 140 at the other end of the pressing assembly 200, a flexible tube is provided inside the pressing assembly 200, the flexible tube is communicated with the nozzle 140 and the pump cavity 110, the output channel 150 may be formed by communicating the flexible tube with the nozzle 140, and the output channel 150 may also be synchronously stretched when adjusting the length of the pressing assembly 200.

Referring to fig. 3 and 5, it is conceivable that in some embodiments, a limiting structure is disposed between the pressing assembly 200 and the pump body 100, where the limiting structure is used to limit the other end of the pressing assembly 200 from entering the pump cavity 110, and with the above arrangement, the limiting structure can limit the other end of the pressing assembly 200 from entering the pump cavity 110, so as to prevent the pressing assembly 200 from being blocked in the pump cavity 110, so as to ensure that the pressing assembly 200 can work repeatedly and normally.

Referring to fig. 3 and 5, it is conceivable that in some embodiments, the limiting structure may include a limiting portion 223 disposed at the other end of the pressing assembly 200, where the limiting portion 223 may abut against the pump body 100 in a matching manner so as to limit the other end of the pressing assembly 200 from entering the pump cavity 110. Wherein, in order to secure the aesthetic appearance, the outer contour of the limiting part 223 may have a cylindrical shape.

Referring to fig. 3 and 5, it is envisioned that in some embodiments, the maximum distance between the stop 223 and the pump body 100 is less than the depth of the pump cavity 110. When the length of the pressing assembly 200 is the largest, the distance between the limiting portion 223 and the pump body 100 is the largest. Therefore, with the above arrangement, on one hand, the stroke range of one end of the pressing assembly 200 in the pump cavity 110 can be adjusted by adjusting the length of the pressing assembly 200, and on the other hand, no matter how long the pressing assembly 200 is, the limit part 223 is abutted against the pump body 100 after the pressing assembly 200 is completely pressed, thereby reducing the impact of the pressing assembly 200 on the inner wall of the pump cavity 110, and preventing the pressing assembly 200 from being bumped by the pressing assembly 200 due to too large force.

It should be noted that, in some embodiments, the limiting structure may also be disposed in other manners, for example, in other embodiments, the limiting structure includes a protrusion disposed on the pump body 100 and a limiting chute disposed on the pressing assembly 200, the protrusion is inserted into the chute, and after the pressing assembly 200 moves a certain distance toward the pump cavity 110, the protrusion and an upper sidewall of the chute are mutually matched and abutted for limiting.

Referring to fig. 1 to 4, it is conceivable that in some embodiments, the pressing assembly 200 includes a first valve stem 210, a second valve stem 220, and an adjusting device 230, one end of the first valve stem 210 is inserted into the pump chamber 110, the other end of the first valve stem 210 is provided with a receiving chamber 211, one end of the second valve stem 220 is inserted into the receiving chamber 211 and can slide along the receiving chamber 211, the adjusting device 230 is disposed between the first valve stem 210 and the second valve stem 220, and the adjusting device 230 is used for adjusting the relative position between the first valve stem 210 and the second valve stem 220. With the above arrangement, the relative position between the first valve rod 210 and the second valve rod 220 can be adjusted by the adjusting device 230, so that the length adjustment of the entire pressing assembly 200 can be realized.

Referring to fig. 1 to 4, it is conceivable that in some embodiments, the second valve rod 220 is provided with a mounting channel 221, a side wall of the mounting channel 221 is provided with an avoidance hole 222, at least two limiting holes 212 are disposed on an inner wall of the accommodating cavity 211 along a length direction of the first valve rod 210 at intervals, the avoidance hole 222 can be opposite to any one of the limiting holes 212, the adjusting device 230 includes a clamping column 231, an unlocking rod 232 and a second reset member 233, the clamping column 231 is movably inserted into the avoidance hole 222, the unlocking rod 232 is slidably inserted into the mounting channel 221, the unlocking rod 232 is in transmission connection with the clamping column 231, the second reset member 233 can drive the clamping column 231 to be movably inserted into any one of the limiting holes 212, and the unlocking rod 232 can drive the clamping column 231 to be movably separated from the limiting hole 212. With the above arrangement, when the length of the pressing assembly 200 needs to be adjusted, the unlocking rod 232 can be operated and the second valve rod 220 can be moved relative to the first valve rod 210, so that the clamping posts 231 can be inserted into different limiting holes 212, and the length of the pressing assembly 200 can be changed.

Referring to fig. 2 and 4, it is conceivable that in some embodiments, the clamping post 231 is connected with a connecting rod 234, one end of the connecting rod 234 away from the clamping post 231 is rotatably connected with the unlocking rod 232, the adjusting device 230 includes a supporting member 235, the supporting member 235 is disposed in the mounting channel 221, the supporting member 235 is located between the clamping post 231 and the unlocking rod 232, and the supporting member 235 abuts against the lower side surface of the connecting rod 234. Therefore, the locking rod 232 can be pressed to drive the clamping column 231 to move to be separated from the corresponding limiting hole 212, and the adjusting device is simple in adjusting process and convenient to use.

Referring to fig. 2 and 4, specifically, the link 234 is inclined, the upper end of the link 234 is connected to the locking post 231, the lower end of the link 234 is rotatably connected to the link 234, and the support 235 is located at the lower side of the link 234. Therefore, the connecting rod 234 is obliquely arranged, so that the distance required to move the unlocking rod 232 can be reduced, and the clamping column 231 can be driven to move away from the corresponding limiting hole 212 more smoothly.

It should be noted that, in other embodiments, the supporting member 235 may be disposed on the upper side of the connecting rod 234, and the supporting rod abuts against the upper side of the connecting rod 234, so that the unlocking rod 232 is pulled to drive the locking post 231 to move away from the corresponding limiting hole 212.

Referring to fig. 1 and 2, it is conceivable that in some embodiments, the mounting channel 221 includes a first mounting hole 2211 and a second mounting hole 2212 disposed along a length direction of the second valve rod 220, the first mounting hole 2211 is communicated with the second mounting hole 2212, the first mounting hole 2211 is located at a side of the second mounting hole 2212 away from the first valve rod 210, the first mounting hole 2211 is larger than the second mounting hole 2212, the unlocking rod 232 is provided with a pressing cover 2321, the second resetting member 233 includes a first spring sleeved on the unlocking rod 232, the first spring is located in the first mounting hole 2211, one end of the first spring is abutted against the pressing cover 2321, and the other end of the first spring is abutted against a bottom wall of the first mounting hole 2211, so that the second resetting member 233 can drive the unlocking rod 232 and the clamping post 231 to reset.

It is envisioned that other arrangements of the second restoring member 233 are possible, for example, in some embodiments, the second restoring member 233 includes an elastic cord having one end connected to the inner wall of the mounting channel 221 and the other end connected to the lower end of the unlocking lever 232.

It should be noted that, the adjusting device 230 may also be configured in other manners, for example, the clamping post 231 may be replaced by an elastic buckle, the elastic buckle is arc-shaped, and the free end of the elastic buckle is inserted into the avoiding hole 222, wherein the elastic buckle retracts toward the mounting channel 221 in a natural state, the lower end of the unlocking rod 232 is provided with a top block, and the second reset piece 233 drives the unlocking rod 232 to move upwards for reset, so that the free end of the elastic buckle is movably inserted into one of the limiting holes 212.

Referring to fig. 5, it is envisioned that in some embodiments, a guide structure is provided between the second valve stem 220 and the first valve stem 210 to guide the first valve stem 210 to slide relative to the second valve stem 220. Specifically, the guiding structure may include a guiding chute and a guiding strip 224, one of the guiding chute and the guiding strip 224 is disposed on the first valve rod 210, the other is disposed on the second valve rod 220, and the guiding strip 224 is inserted into the guiding chute and can slide along the guiding chute.

It should be noted that, the above-mentioned pressing assembly 200 may also be configured in other manners to realize the adjustable length of the pressing assembly 200, for example, the accommodating cavity 211 of the first valve rod 210 is provided with an internal thread, the lower end of the second valve rod 220 is provided with an external thread, and thus, the lower end of the second valve rod 220 may be spirally connected with the lower end of the first valve rod 210, so that the second valve rod 220 may be rotated to spirally lift the second valve rod 220 relative to the first valve rod 210, and further, the adjustable length of the pressing assembly 200 may be realized.

Referring to fig. 1 and 3, in the implementation process, the pressing assembly 200 includes a piston 240 disposed at the lower end of the first valve rod 210, and the piston 240 is abutted against the inner wall of the pump cavity 110, so that the material can be pumped better through the arrangement of the piston 240.

Referring to fig. 1 and 3, it is conceivable that in some embodiments, the first reset element 300 may include a second spring disposed in the pump cavity 110, where the second spring is located on the lower side of the pressing assembly 200, and one end of the second spring abuts against the pressing assembly 200, and the other end abuts against the bottom wall of the pump cavity 110.

It should be noted that, in other embodiments, the first restoring member 300 may be disposed in other manners, and the first restoring member 300 may include an elastic pull cord, where one end of the elastic pull cord is connected to the piston 240 and the other end of the elastic pull cord is connected to the top wall of the pump chamber 110.

Referring to fig. 1 and 3, in the implementation process, the first valve structure 400 includes a check valve such as a check ball valve or a check valve plate, and the second valve structure 500 includes a check valve such as a check ball valve or a check valve plate.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The present embodiment has been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiment, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit.

Claims (10)

1. A push pump with adjustable discharge amount, comprising:

The pump comprises a pump body (100) provided with a pump cavity (110) and an input channel (120), wherein the input channel (120) is communicated with the pump cavity (110), and a first valve structure (400) is arranged in the input channel (120) or between the input channel (120) and the pump cavity (110);

A pressing assembly (200), wherein one end of the pressing assembly (200) is inserted into the pump cavity (110), and the pressing assembly (200) can slide along the pump cavity (110);

The first reset piece (300) is arranged between one end of the pressing assembly (200) and the pump body (100), and the first reset piece (300) is used for driving one end of the pressing assembly (200) to move towards an inlet (111) of the pump cavity (110) for reset;

The pump body (100) or the pressing component (200) is provided with an output channel (150), the output channel (150) is communicated with the pump cavity (110), a second valve structure (500) is arranged in the output channel (150) or between the output channel (150) and the pump cavity (110), and the length of the pressing component (200) is adjustable so that the stroke range of one end of the pressing component (200) in the pump cavity (110) is adjustable.

2. The pressure pump with adjustable ejection amount according to claim 1, wherein the pressing assembly (200) includes a first valve rod (210), a second valve rod (220) and an adjusting device (230), one end of the first valve rod (210) is inserted into the pump cavity (110), the other end of the first valve rod (210) is provided with a containing cavity (211), one end of the second valve rod (220) is inserted into the containing cavity (211) and can slide along the containing cavity (211), the adjusting device (230) is arranged between the first valve rod (210) and the second valve rod (220), and the adjusting device (230) is used for adjusting the relative position between the first valve rod (210) and the second valve rod (220).

3. The pressure pump with adjustable ejection amount according to claim 2, wherein the second valve rod (220) is provided with a mounting channel (221), a side wall of the mounting channel (221) is provided with an avoidance hole (222), at least two limit holes (212) are formed in an inner wall of the accommodating cavity (211) along a length direction of the first valve rod (210) at intervals, the avoidance hole (222) can be opposite to any one of the limit holes (212), the adjusting device (230) comprises a clamping column (231), an unlocking rod (232) and a second reset piece (233), the clamping column (231) is movably inserted into the avoidance hole (222), the unlocking rod (232) is slidably inserted into the mounting channel (221), the unlocking rod (232) is in transmission connection with the clamping column (231), the second reset piece (233) can drive the clamping column (231) to be movably inserted into any one of the limit holes (212), and the unlocking rod (232) can drive the clamping column (231) to be separated from the corresponding limit hole (212).

4. A push pump with adjustable ejection amount according to claim 3, wherein the clamping column (231) is connected with a connecting rod (234), one end of the connecting rod (234) away from the clamping column (231) is rotatably connected with the unlocking lever (232), the adjusting device (230) comprises a supporting member (235), the supporting member (235) is arranged in the mounting channel (221), the supporting member (235) is located between the clamping column (231) and the unlocking lever (232), and the supporting member (235) is abutted to the lower side or the upper side of the connecting rod (234).

5. The push pump of claim 4, wherein the link (234) is inclined, an upper end of the link (234) is connected to the clip (231), a lower end of the link (234) is rotatably connected to the link (234), and the support member (235) is disposed at a lower side of the link (234).

6. A push pump with adjustable ejection amount according to claim 3, wherein the mounting channel (221) includes a first mounting hole (2211) and a second mounting hole (2212) disposed along a length direction of the second valve rod (220), the first mounting hole (2211) is communicated with the second mounting hole (2212), the first mounting hole (2211) is located at a side of the second mounting hole (2212) away from the first valve rod (210), the first mounting hole (2211) is larger than the second mounting hole (2212), the unlocking rod (232) is provided with a push cap (2321), the second resetting member (233) includes a first spring sleeved on the unlocking rod (232), the first spring is located in the first mounting hole (2211), one end of the first spring is abutted against the push cap (2321), and the other end of the first spring is abutted against a bottom wall of the first mounting hole (2211).

7. The pressure pump with adjustable ejection amount according to claim 1, wherein a limit structure is provided between the pressure assembly (200) and the pump body (100), and the limit structure is used for limiting the other end of the pressure assembly (200) from entering the pump cavity (110).

8. The pressure pump with adjustable ejection amount according to claim 7, wherein the limit structure comprises a limit portion (223) disposed at the other end of the pressure assembly (200), and the limit portion (223) can be mutually matched and abutted with the pump body (100).

9. The push pump of claim 2, wherein a guide structure is provided between the second valve stem (220) and the first valve stem (210).

10. The pressure pump with adjustable discharge amount according to any one of claims 1 to 9, characterized in that the pump body (100) is provided with an output pipe (130), a nozzle (140) is provided at an outlet of the output pipe (130), and the output passage (150) is formed by the nozzle (140) communicating with the output pipe (130).