CN218143215U

CN218143215U - Press pump

Info

Publication number: CN218143215U
Application number: CN202222197008.4U
Authority: CN
Inventors: 林添大; 莫恒进; 罗天荣
Original assignee: Zhongshan Luencheong Dispensing Pump Ltd
Current assignee: Zhongshan Luencheong Dispensing Pump Ltd
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2022-12-27
Anticipated expiration: 2032-08-18

Abstract

The utility model discloses a pressing pump, which comprises a pump body, a valve rod assembly and a sealing structure, wherein the pump body is provided with an installation channel, the pump body is provided with a liquid inlet communicated with the bottom of the installation channel, one end of the pump body, which is far away from the liquid inlet, is provided with an annular slot, and one end of the installation channel, which is far away from the liquid inlet, is positioned at the inner side of the slot; the valve rod assembly is inserted into the installation channel in a liftable manner, an annular accommodating groove is formed in one end, away from the liquid inlet, of the valve rod assembly, an opening of the accommodating groove faces towards the pump body, a protective sleeve is formed on the outer side wall of the accommodating groove, the protective sleeve is inserted into the insertion groove, and the inner side wall of the insertion groove is inserted into the accommodating groove; the sealing structure is arranged along the circumferential direction of the protecting sleeve, the sealing structure is arranged on the protecting sleeve and is in sealing butt joint with the side wall of the inserting groove, or the sealing structure is arranged on the side wall of the inserting groove and is in sealing butt joint with the protecting sleeve. The utility model provides a press the press pump, can effectively avoid outside water to get into the pump body from the gap between the valve stem subassembly and the pump body, improve and press the press pump waterproof performance.

Description

Press pump

Technical Field

The utility model relates to a press the pump, in particular to press the pump.

Background

Containers for liquids such as shampoo and bath foam are usually provided with a pump for pumping out the liquid from the container. The pressing pump generally comprises a pump body and a valve rod inserted in the pump body, in the actual use process of the existing pressing pump, water of a bathroom shower head easily enters the pump body from a gap between the pump body and the valve rod, and the water enters the container through the pump body to pollute liquid in the container.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a press pump can effectively avoid outside water to get into the pump body from the gap between the valve stem subassembly and the pump body, improves the waterproof performance according to press pump.

The pressing pump comprises a pump body, a valve rod assembly and a sealing structure, wherein the pump body is provided with an installation channel, the pump body is provided with a liquid inlet communicated with the bottom of the installation channel, one end of the pump body, far away from the liquid inlet, is provided with an annular slot, and one end of the installation channel, far away from the liquid inlet, is positioned at the inner side of the slot; the valve rod assembly is inserted into the installation channel in a liftable manner, a liquid outlet channel capable of being communicated with the installation channel is arranged in the valve rod assembly, an annular accommodating groove is formed in one end, away from the liquid inlet, of the valve rod assembly, an opening of the accommodating groove faces towards the pump body, a protective sleeve is formed on the outer side wall of the accommodating groove, the protective sleeve is inserted into the insertion groove, and the inner side wall of the insertion groove is inserted into the accommodating groove; the sealing structure is arranged along the circumferential direction of the protecting sleeve, the sealing structure is arranged on the protecting sleeve and is in sealing butt joint with the side wall of the inserting groove, or the sealing structure is arranged on the side wall of the inserting groove and is in sealing butt joint with the protecting sleeve.

According to the utility model discloses press the pump, following beneficial effect has at least: thereby seal structure makes between the lateral wall of lag and slot sealed realization first protection, and the lag can make the gap shape between the valve rod subassembly and the pump body tortuous, total length increase with mutually supporting of slot for it is internal that water is difficult to get into the pump, thereby realizes that the second says the protection, so, through first protection and second way protection, can effectively avoid outside water to get into the pump body from the gap between the valve rod subassembly and the pump body in, improve the waterproof performance according to the force pump.

According to some embodiments of the utility model, seal structure sets up to the sealing washer.

According to the utility model discloses a some embodiments, the periphery wall of lag is provided with and is annular draw-in groove, the sealing washer card is located the draw-in groove and with the sealed butt of lateral wall of slot.

According to some embodiments of the utility model, seal structure set up to the shaping in the muscle position of lag periphery wall, the muscle position be the annular and with the sealed butt of lateral wall of slot.

According to some embodiments of the utility model, muscle position including set up in connecting portion on the lag periphery wall, connecting portion are the annular, connecting portion are kept away from lag one end is extended and is provided with and is annular elasticity butt portion, just elasticity butt portion is kept away from the one end of connecting portion with contained angle between the connecting portion is greater than 90 degrees, elasticity butt portion is kept away from the one end of connecting portion with the sealed butt of lateral wall of slot.

According to some embodiments of the utility model, the inlet is located the lower extreme of the pump body, the slot is located the upper end of the pump body, the high position at slot inside wall top is higher than the high position at slot outside wall top.

According to some embodiments of the utility model, the pump body including have the body and the cartridge that hold the chamber in hold the locking closure of chamber upper end, the locking closure with body sealing connection, the locking closure along the upper and lower direction seted up with hold the intercommunicating pore of chamber intercommunication, the installation passageway by the intercommunicating pore with it forms to hold the chamber intercommunication, the slot set up in the locking closure, the intercommunicating pore is located the inboard of slot.

According to the utility model discloses a some embodiments, the locking closure upper end is provided with the installation department along its circumference, the installation department is close to a lateral wall of body has been seted up and has been annular mounting groove, the butt joint ring has been seted up to the last lateral wall of mounting groove, the upper end of body is inserted and is located the mounting groove lateral wall with between the butt joint ring, just the mounting groove lateral wall with the upper end of body is passed through screw thread or is detained the line and connect, the butt joint ring with the sealed butt in upper end of body.

According to some embodiments of the invention, there is a gap between the lower end of the locking cap and the inner wall of the receiving cavity, the gap being provided with a sealing element.

According to the utility model discloses a some embodiments, inlet department is provided with a check valve, be provided with in the valve rod assembly can with the liquid outlet channel of installation passageway intercommunication, the valve rod assembly is provided with valve structure, valve structure is used for control the installation passageway with break-make between the liquid outlet channel.

Additional aspects and advantages of the invention 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 invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a sectional view of a pressing pump (when a seal structure is provided as a seal ring) according to an embodiment of the present invention;

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

FIG. 3 is a sectional view of a pressing pump (with a sealing structure arranged at a rib position) according to an embodiment of the present invention;

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

fig. 5 is a cross-sectional view of a lock cover of a pressing pump according to an embodiment of the present invention;

fig. 6 is a sectional view of a body of a pressing pump according to an embodiment of the present invention;

fig. 7 is a schematic view of a pressing pump according to an embodiment of the present invention;

fig. 8 is an exploded view of the pressing pump according to the embodiment of the present invention.

Reference numerals are as follows:

the pump body 100, the body 110, the locking cover 120, the mounting channel 130, the gap 140, the accommodating cavity 111, the liquid inlet 112, the fastening wire 113, the communication hole 121, the insertion groove 122, the mounting portion 123, the mounting groove 124, the abutting ring 125, the first check valve 200, the valve rod assembly 300, the liquid outlet channel 310, the inlet 311, the accommodating groove 320, the protecting sleeve 330, the locking groove 331, the rib 332, the connecting portion 3321, the elastic abutting portion 3322, the first pushing portion 341, the second pushing portion 342, the piston 400, the sealing ring 500, and the sealing member 600.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the directional descriptions, such as the directions or positional relationships indicated by upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present invention, a plurality of meanings are one or more, a plurality of meanings are two or more, and the terms greater than, smaller than, exceeding, etc. are understood as excluding the number, and the terms greater than, lower than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood 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 invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 4, the pressing pump according to the embodiment of the present invention includes a pump body 100, a valve rod assembly 300 and a sealing structure, the pump body 100 is provided with an installation channel 130, the pump body 100 is provided with a liquid inlet 112 communicated with the bottom of the installation channel 130, one end of the pump body 100 away from the liquid inlet 112 is provided with an annular slot 122, and one end of the installation channel 130 away from the liquid inlet 112 is located inside the slot 122; the valve rod assembly 300 is liftably inserted into the installation channel 130, a liquid outlet channel 310 capable of being communicated with the installation channel 130 is arranged in the valve rod assembly 300, an annular accommodation groove 320 is arranged at one end, away from the liquid inlet 112, of the valve rod assembly 300, an opening of the accommodation groove 320 faces the pump body 100, a protection sleeve 330 is formed on the outer side wall of the accommodation groove 320, the protection sleeve 330 is inserted into the insertion groove 122, and the inner side wall of the insertion groove 122 is inserted into the accommodation groove 320; the sealing structure is disposed along the circumference of the shield 330, the sealing structure is disposed on the shield 330 and in sealing abutment with the side walls of the slot 122, or the sealing structure is disposed on the side walls of the slot 122 and in sealing abutment with the shield 330.

Referring to fig. 1 to 4, through the above arrangement, the sealing structure seals between the side walls of the protective sleeve 330 and the insertion slot 122 to realize the first protection, the mutual cooperation of the protective sleeve 330 and the insertion slot 122 can make the gap between the valve rod assembly 300 and the pump body 100 zigzag, and the total length is increased, so that water is difficult to enter the pump body 100, and thus the second protection is realized, so that through the first protection and the second protection, external water can be effectively prevented from entering the pump body 100 from the gap between the valve rod assembly 300 and the pump body 100, and the waterproof performance of the pressing pump is improved.

Through the arrangement, when water of the bathroom shower head is sprinkled to a container (not shown in the figure) from top to bottom, the water is difficult to enter the pump body 100 from a gap between the valve rod assembly 300 and the pump body 100, so that the condition that the water enters the container through the pump body 100 to pollute the liquid in the container is reduced, the shelf life of the liquid in the container is ensured, the waterproof requirement of a product can be met by pressing the pump, and the market competitiveness of the pressing pump is improved.

Referring to fig. 1 and 2, it is conceivable that the above-described seal structure may be provided as a seal ring 500, and the seal ring 500 has a certain elastic deformability and can be brought into good sealing contact with other members.

Referring to fig. 1 and 2, specifically, in some embodiments, the outer peripheral wall of the protective sleeve 330 is provided with an annular clamping groove 331, and the sealing ring 500 is clamped in the clamping groove 331 and is in sealing abutment with the outer side wall of the insertion groove 122, so that the sealing ring 500 can seal between the outer peripheral wall of the protective sleeve 330 and the outer side wall of the insertion groove 122, thereby realizing first protection and effectively preventing water from entering the insertion groove 122 from pressing the outside of the pump. Through the above arrangement, the sealing ring 500 can be detached, and when the sealing ring 500 is damaged, the sealing ring 500 can be replaced, so that a longer waterproof effect can be realized.

Referring to fig. 3 and 4, it is conceivable that, in some embodiments, the sealing structure may also be configured as a rib 332 formed on the outer peripheral wall of the protecting sleeve 330, that is, the rib 332 and the protecting sleeve 330 are integrally formed, so that the number of assembling steps can be reduced, and the production efficiency can be improved. Wherein, muscle position 332 is the annular and with the sealed butt of the lateral wall of slot 122 to make between the periphery wall of lag 330 and the lateral wall of slot 122 sealed, thereby realize first protection, can effectively avoid pressing in the outside water entering slot 122 of pump.

Referring to fig. 3 and 4, it is conceivable that, in some embodiments, the tendon positions 332 include a connection portion 3321 disposed on the outer circumferential wall of the protection sleeve 330, the connection portion 3321 is annular, one end of the connection portion 3321 away from the protection sleeve 330 is extended to form an annular elastic abutment portion 3322, an included angle between one end of the elastic abutment portion 3322 away from the connection portion 3321 and the connection portion 3321 is greater than 90 degrees, and one end of the elastic abutment portion 3322 away from the connection portion 3321 is in sealing abutment with the outer sidewall of the insertion slot 122. It can be understood that the elastic abutting portion 3322 is in a free state, that is, when the protection sleeve 330 is not inserted into the slot 122, a distance between one end of the elastic abutting portion 3322 far away from the connecting portion 3321 and the center of the protection sleeve 330 is greater than a major diameter of the slot 122, so that when the protection sleeve 330 is inserted into the slot 122, the elastic abutting portion 3322 can be in sealing abutment with the outer sidewall of the slot 122. Through the above arrangement, the elastic abutting portion 3322 can be in close contact with the outer side wall of the slot 122 under the elastic action of the elastic abutting portion 3322, so that good sealing effect is achieved. Further, with the above arrangement, even if a part of the elastic contact portion 3322 is worn, it can be brought into sealing contact with the outer wall of the insertion groove 122, that is, it has an automatic compensation function.

It should be noted that the above-mentioned seal ring 500 and the rib portions 332 have their advantages, and in the specific implementation process, the seal ring 500 or the rib portions 332 may be selectively arranged as needed, or of course, the seal ring 500 and the rib portions 332 may be arranged at the same time.

Referring to fig. 1 and 5, it is conceivable that, when the outer sidewall of the slot 122 is in sealing contact with the sealing structure disposed on the outer peripheral wall of the protective sleeve 330, one end of the protective sleeve 330 close to the pump body 100 may contract and deform, so as to prevent the inner sidewall of the slot 122 from being interfered by the protective sleeve 330 and being unable to be inserted into the receiving groove 320 smoothly, in some embodiments, the liquid inlet 112 is located at the lower end of the pump body 100, the slot 122 is located at the upper end of the pump body 100, and the height position of the top of the inner sidewall of the slot 122 is higher than the height position of the top of the outer sidewall of the slot 122, in the assembling process, the inner sidewall of the slot 122 is inserted into the receiving groove 320 first and then into the protective sleeve 330, so that the inner sidewall of the slot 122 is ensured to be inserted into the receiving groove 320 smoothly.

In addition to the arrangement in which the sealing structure is provided on the outer peripheral wall of the protector 330 and sealingly abuts against the outer side wall of the insertion groove 122, the sealing structure described above may be provided in other arrangements, for example: in some embodiments, the sealing structure may be disposed on the inner sidewall of the protective sheath 330 and sealingly abut the inner sidewall of the slot 122; alternatively, in some embodiments, the sealing structure may be disposed on an outer sidewall of the slot 122 and sealingly abut against an outer peripheral wall of the shield 330; alternatively, in some embodiments, the sealing structure may be disposed on an inner sidewall of the slot 122 and sealingly abut against an inner sidewall of the protective sheath 330. Certainly, in a specific implementation process, sealing structures may also be simultaneously disposed between the outer peripheral wall of the protecting sleeve 330 and the outer side wall of the inserting groove 122 and between the inner side wall of the protecting sleeve 330 and the inner side wall of the inserting groove 122, and the number of the sealing structures may also be two or more, so that the waterproof performance is better, and accordingly, the cost thereof is also increased, and therefore, the specific number and the installation position of the sealing structures should be determined according to actual needs.

Referring to fig. 1, 3, 5 and 6, it is conceivable that, in some embodiments, the pump body 100 includes a body 110 having an accommodating cavity 111 and a locking cover 120 inserted into an upper end of the accommodating cavity 111, the locking cover 120 is hermetically connected to the body 110, the locking cover 120 is provided with a communication hole 121 communicating with the accommodating cavity 111 in an up-down direction, the installation channel 130 is formed by the communication hole 121 communicating with the accommodating cavity 111, the insertion slot 122 is provided in the locking cover 120, and the communication hole 121 is located inside the insertion slot 122. Through the arrangement, the pump body 100 can be conveniently processed, and meanwhile, the assembly of components needing to be assembled in the installation channel 130 in the pump is also conveniently pressed.

Referring to fig. 2, 5 and 6, it is conceivable that, in some embodiments, the upper end of the locking cover 120 is provided with a mounting portion 123 along the circumferential direction thereof, a side wall of the mounting portion 123 close to the body 110 is provided with an annular mounting groove 124, an upper side wall of the mounting groove 124 is provided with a butting ring 125, the upper end of the body 110 is inserted between the outer side wall of the mounting groove 124 and the butting ring 125, the outer side wall of the mounting groove 124 is connected with the upper end of the body 110 through a thread or a fastening line 113, and the butting ring 125 is in sealing butting with the upper end of the body 110, so that the thread or the fastening line 113 between the outer side wall of the mounting groove 124 and the upper end of the body 110 can play a certain waterproof role, and the matching between the butting ring 125 and the upper end of the body 110 can also play a further waterproof role, thereby improving the waterproof performance between the locking cover 120 and the body 110.

Referring to fig. 1 and 3, it is conceivable that, in some embodiments, a gap 140 exists between the lower end of the locking cap 120 and the inner wall of the accommodating chamber 111, the gap 140 is provided with a sealing member 600, and the waterproof performance between the locking cap 120 and the body 110 can be further improved by the arrangement of the sealing member 600. The pump body 100 includes the arrangement of the locking cap 120 and the body 110, which facilitates the assembly of the sealing member 600.

Referring to fig. 1 and 2, it is conceivable that, in some embodiments, the first check valve 200 is disposed at the liquid inlet 112, the liquid outlet channel 310 capable of communicating with the mounting channel 130 is disposed in the valve rod assembly 300, the valve rod assembly 300 is provided with a valve structure for controlling the connection and disconnection between the bottom of the mounting channel 130 and the liquid outlet channel 310, when the valve rod assembly 300 moves close to the liquid inlet 112, the valve structure is opened to connect the bottom of the mounting channel 130 and the liquid outlet channel 310, so that the liquid at the bottom of the mounting channel 130 is input into the liquid outlet channel 310, and when the valve rod assembly 300 moves away from the liquid outlet, the valve structure is closed to disconnect the mounting channel 130 and the liquid outlet channel 310, so that the bottom of the mounting channel 130 forms a negative pressure, so that the liquid in the container is sucked into the bottom of the mounting channel 130.

Referring to fig. 1, 7 and 8, specifically, the valve structure includes a piston 400 sleeved on the valve rod assembly 300, the piston 400 is located in the installation channel 130, a periphery of the piston 400 abuts against an inner wall of the installation channel 130, a first pushing portion 341 and a second pushing portion 342 are disposed on an outer periphery of the valve rod assembly 300, the piston 400 is located between the first pushing portion 341 and the second pushing portion 342, the piston 400 can lift between the first pushing portion 341 and the second pushing portion 342, the second pushing portion 342 is annular and located below the first pushing portion 341, an inlet 311 communicated with the liquid outlet channel 310 is disposed on an outer periphery of one end of the valve rod assembly 300 close to the liquid inlet 112, and the inlet 311 is located between the first pushing portion 341 and the second pushing portion 342. When the valve rod assembly 300 moves to be close to the liquid inlet 112, the valve rod assembly 300 and the piston 400 relatively lift, at this time, the piston 400 and the second pushing part 342 are far away from each other, so that the inlet 311 is communicated with the installation channel 130, then the first pushing part 341 is abutted to the upper end of the piston 400, then the valve rod assembly 300 can push the piston 400 to descend together, and then the liquid at the bottom of the installation channel 130 is input into the liquid outlet channel 310; when the valve rod assembly 300 moves away from the liquid inlet 112, the valve rod assembly 300 and the piston 400 are lifted and lowered relatively, then the second pushing portion 342 is in sealing contact with the lower end of the piston 400, so that the inlet 311 is disconnected from the installation channel 130, and then the valve rod assembly 300 can push the piston 400 to ascend together, so that negative pressure is formed at the bottom of the installation channel 130.

Referring to fig. 1, 7 and 8, the piston 400 is located below the locking cap 120 and is limited by the locking cap 120 to the bottom of the accommodating cavity 111, so as to prevent the piston 400 and the valve rod assembly 300 from being separated from the pump body 100, and the arrangement of the locking cap 120 and the body 110 in the pump body 100 can also facilitate the assembly of the piston 400.

It should be noted that, in the art, the valve structure may also adopt other arrangement manners, for example, the valve structure includes a second one-way valve disposed in the liquid outlet channel 310, at this time, the valve rod assembly 300 may also be sleeved with the piston 400, so that when the valve rod assembly 300 drives the piston 400 to move close to the liquid inlet 112, the second one-way valve is automatically opened, so that the installation channel 130 is communicated with the liquid outlet channel 310, and when the valve rod assembly 300 drives the piston 400 to move away from the liquid inlet 112, the second one-way valve is automatically closed, so that the installation channel 130 is disconnected from the liquid outlet channel 310.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

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

Claims

1. A push pump, comprising:

the pump body (100) is provided with an installation channel (130), the pump body (100) is provided with a liquid inlet (112) communicated with the bottom of the installation channel (130), one end, far away from the liquid inlet (112), of the pump body (100) is provided with an annular slot (122), and one end, far away from the liquid inlet (112), of the installation channel (130) is located on the inner side of the slot (122);

the valve rod assembly (300) is liftably inserted into the mounting channel (130), an annular accommodating groove (320) is formed in one end, away from the liquid inlet (112), of the valve rod assembly (300), an opening of the accommodating groove (320) faces the pump body (100), a protecting sleeve (330) is formed on the outer side wall of the accommodating groove (320), the protecting sleeve (330) is inserted into the inserting groove (122), and the inner side wall of the inserting groove (122) is inserted into the accommodating groove (320);

and the sealing structure is arranged along the circumferential direction of the protecting sleeve (330), is arranged on the protecting sleeve (330) and is in sealing abutting joint with the side wall of the inserting groove (122), or is arranged on the side wall of the inserting groove (122) and is in sealing abutting joint with the protecting sleeve (330).

2. Pressing pump according to claim 1, characterized in that the sealing structure is provided as a sealing ring (500).

3. A pump according to claim 2, wherein the protective sleeve (330) has an outer peripheral wall provided with a ring-shaped engagement groove (331), the sealing ring (500) being engaged in the engagement groove (331) and being in sealing abutment with an outer side wall of the insertion groove (122).

4. The push pump according to claim 1, wherein the sealing structure is configured as a rib (332) formed in a peripheral wall of the protective sleeve (330), the rib (332) being annular and in sealing abutment with an outer sidewall of the socket (122).

5. The push pump according to claim 4, wherein the rib portion (332) comprises a connecting portion (3321) disposed on the outer peripheral wall of the shield sleeve (330), the connecting portion (3321) is annular, an end of the connecting portion (3321) away from the shield sleeve (330) extends to form an annular elastic abutting portion (3322), an included angle α between an end of the elastic abutting portion (3322) away from the connecting portion (3321) and the connecting portion (3321) is greater than 90 degrees, and an end of the elastic abutting portion (3322) away from the connecting portion (3321) is in sealing abutment with the outer side wall of the insertion groove (122).

6. The pump according to any one of claims 3 to 4, wherein the liquid inlet (112) is located at a lower end of the pump body (100), the slot (122) is located at an upper end of the pump body (100), and a height position of a top portion of an inner side wall of the slot (122) is higher than a height position of a top portion of an outer side wall of the slot (122).

7. The pressing pump according to claim 1, wherein the pump body (100) comprises a body (110) having an accommodating chamber (111) and a locking cover (120) inserted into an upper end of the accommodating chamber (111), the locking cover (120) is hermetically connected to the body (110), the locking cover (120) is provided with a communication hole (121) in a vertical direction, the communication hole (121) is communicated with the accommodating chamber (111), the installation channel (130) is formed by the communication hole (121) being communicated with the accommodating chamber (111), the insertion slot (122) is provided in the locking cover (120), and the communication hole (121) is located inside the insertion slot (122).

8. The pressing pump of claim 7, wherein the upper end of the locking cap (120) is provided with a mounting portion (123) along the circumferential direction thereof, a side wall of the mounting portion (123) close to the body (110) is provided with an annular mounting groove (124), an abutting ring (125) is provided on the upper side wall of the mounting groove (124), the upper end of the body (110) is inserted between the outer side wall of the mounting groove (124) and the abutting ring (125), the outer side wall of the mounting groove (124) is connected with the upper end of the body (110) through a thread or a buckle line (113), and the abutting ring (125) is in sealing abutment with the upper end of the body (110).

9. Pressing pump according to claim 8, characterized in that a gap (140) is present between the lower end of the locking cap (120) and the inner wall of the housing chamber (111), said gap (140) being provided with a seal (600).

10. The push pump according to claim 1, wherein a first one-way valve (200) is disposed at the liquid inlet (112), a liquid outlet channel (310) capable of communicating with the installation channel (130) is disposed in the valve rod assembly (300), and the valve rod assembly (300) is provided with a valve structure for controlling the connection and disconnection between the installation channel (130) and the liquid outlet channel (310).