CN210823536U

CN210823536U - Lotion pump with external spring

Info

Publication number: CN210823536U
Application number: CN201921426029.0U
Authority: CN
Inventors: 张明威; 陈树仁; 陈昌美
Original assignee: Jiangmen Kk Plastic Factory Ltd
Current assignee: Jiangmen Kk Plastic Factory Ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-06-23
Anticipated expiration: 2029-08-29

Abstract

The utility model discloses an external spring lotion pump, which comprises a pressure head, a connecting pipe, a piston and a cylindrical pump body, wherein the piston is arranged in the inner cavity of the pump body, the pressure head is connected with the piston through the connecting pipe, a first discharging channel communicated with the connecting pipe and the inner cavity is arranged in the piston, and a second discharging channel communicated with the connecting pipe is arranged in the pressure head; a return spring is arranged between the pressure head and the pump body, and the lower part of the inner cavity is connected with a suction pipe; the inner side of the upper part of the connecting pipe and the lower part of the inner cavity are both provided with an isolation mechanism, and the isolation mechanism comprises a plug and an elastic supporting piece of which one end is connected with the plug; a first isolation plate is arranged on the inner side of the upper part of the connecting pipe, a fourth through hole is formed in the middle of the first isolation plate, and the fourth through hole is sealed by a plug from the upper side under the action of the elastic supporting piece so as to isolate the upper cavity and the lower cavity of the connecting pipe; first through-hole has been seted up to the bottom of the junction of inner chamber and straw, and under elastic support's effect, the end cap seals first through-hole in order to keep apart inner chamber and straw from the upside.

Description

Lotion pump with external spring

Technical Field

The utility model relates to a lotion pump technical field, in particular to lotion pump with external spring.

Background

The lotion pump with the external spring is commonly used for pumping lotion daily chemicals such as shampoo, liquid soap and liquid detergent, and is very convenient to use, the lotion pump mainly comprises a pressure head, a connecting pipe, a piston, a pump body and the like, the connecting pipe and the piston are arranged in the pump body, the upper end of the connecting pipe is connected with the pressure head, the lower end of the connecting pipe is connected with the piston, discharge passages communicated with inner cavities of the connecting pipe are arranged in the pressure head and the piston, a reset spring is arranged between the pressure head and the pump body, a spiral cover connected with the bottle body is arranged on the upper portion of the pump body, a suction pipe is connected with the lower portion of the pump body and communicated with the inner cavity of the connecting pipe, the suction pipe extends into the bottle body. The connection part of the pump body inner cavity and the suction pipe of the existing emulsion pump with the external spring is provided with steel balls or glass beads, when the emulsion pump is not used, the self gravity of the steel balls or the glass beads is utilized to realize the sealing isolation between the pump body inner cavity and the suction pipe, and once the bottle body is inclined or inverted, the steel balls or the glass beads are easy to misplace, so that the suction pipe is communicated with the pump body inner cavity, and emulsion can automatically flow out from the pressure head, thereby causing waste. Therefore, there is a need for an improved and optimized existing spring-loaded lotion pump.

SUMMERY OF THE UTILITY MODEL

Problem to prior art existence, the utility model provides an external emulsion pump of spring, when the bottle takes place to incline or invert, the emulsion is hardly from the pressure head automatic outflow.

The utility model adopts the technical proposal that:

an emulsion pump with an external spring comprises a pressure head, a connecting pipe, a piston and a cylindrical pump body, wherein the piston is arranged in an inner cavity of the pump body and is connected with the pressure head through the connecting pipe; the pressure head is connected with the pump body in a sliding manner, a return spring is arranged between the pressure head and the pump body, and the lower part of the inner cavity is connected with a suction pipe; the inner side of the upper part of the connecting pipe and the lower part of the inner cavity are both provided with an isolation mechanism, the isolation mechanism comprises a plug and an elastic support piece, one end of the elastic support piece is connected with the plug, and the other end of the elastic support piece is connected with the connecting pipe and the inner cavity; a first isolation plate is arranged on the inner side of the upper part of the connecting pipe, a fourth through hole is formed in the middle of the first isolation plate, and the plug seals the fourth through hole from the upper side under the action of the elastic supporting piece so as to isolate the upper cavity and the lower cavity of the connecting pipe; the bottom end of the joint of the inner cavity and the suction pipe is provided with a first through hole, and under the action of the elastic supporting piece, the plug seals the first through hole from the upper side so as to isolate the inner cavity and the suction pipe.

Furthermore, the isolation mechanism further comprises a cylindrical isolation block, one end of the elastic support member is connected with the plug, and the other end of the elastic support member is connected with the cylindrical isolation block.

Furthermore, a second through hole is formed in the middle of the cylindrical isolation block, the elastic supporting pieces are a plurality of supporting elastic pieces which are arranged in a staggered mode and staggered with the second through hole, one end of each supporting elastic piece is connected with the plug, and the other end of each supporting elastic piece is connected with the cylindrical isolation block.

Furthermore, the lower part outside of connecting pipe is provided with first outer lock bulge loop, the middle part outside of piston upwards extends annular first extension, first extension inner wall is equipped with the first interior lock concave ring that matches with first outer lock bulge loop.

Preferably, the top end of the first extending portion is outwards turned to form a fifth extending portion in a ring shape, and a first sealing ring matched with the inner diameter of the middle portion of the inner cavity is arranged on the outer wall of the fifth extending portion.

Furthermore, the first discharging channel is arranged in the middle of the piston in the axial direction, a third through hole is formed in the lower portion of the piston along the radial side face of the piston, and the third through hole is communicated with the inner cavity and the first discharging channel.

Furthermore, an inserting portion which can be inserted into the connecting pipe is arranged in the pressure head, a second outer buckling convex ring is arranged on the outer side of the inserting portion, and a second inner buckling concave ring matched with the second outer buckling convex ring is arranged on the upper cavity of the connecting pipe.

Furthermore, the second discharging channel is arranged in the inserting part and extends out of the discharging hole towards one side.

Furthermore, the top of the connecting pipe is outwards turned to form an annular second external extension part, the top of the spiral cover is provided with a groove, the bottom of the groove upwards extends to form a first inner cylinder with an opening at the upper end, the connecting pipe penetrates through the first inner cylinder, the reset spring is sleeved on the outer side of the connecting pipe, one end of the reset spring is abutted to the second external extension part, and the other end of the reset spring is abutted to the groove.

Furthermore, a third outer buckling convex ring is arranged on the outer side of the upper portion of the pump body, an annular third outward extending portion is outwards turned on the upper portion of the spiral cover, and a third inner buckling concave ring matched with the third outer buckling convex ring is arranged on the inner wall of the third outward extending portion.

The beneficial effects of the above technical scheme are: adopt the external emulsion pump of spring among the above-mentioned technical scheme, the end cap mainly relies on elastic support piece's holding power shutoff first through-hole and fourth through-hole, and does not rely on the gravity of self, in case the bottle takes place to incline or when inverting, the end cap is difficult to take place the dislocation under elastic support piece's holding power effect, and discharging channel is still cut off, and the emulsion is difficult to flow from the pressure head automatically.

Drawings

Fig. 1 is a cross-sectional view of the overall structure of an embodiment of the present invention with the ram in the lowermost position;

fig. 2 is a cross-sectional view of the overall structure of the indenter in an embodiment of the present invention in the uppermost position;

fig. 3 is a cross-sectional view of an isolation mechanism in an embodiment of the invention;

figure 4 is a cross-sectional view of an indenter in an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a connecting tube in an embodiment of the invention;

FIG. 6 is a cross-sectional view of a screw cap according to an embodiment of the present invention;

fig. 7 is a cross-sectional view of a pump body in an embodiment of the invention;

fig. 8 is a sectional view of a piston in an embodiment of the invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less 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.

The structure of a bead-moving bottle blank and a mold for manufacturing the bottle blank according to the present invention will be described in detail with reference to the preferred embodiments and the accompanying drawings.

Referring to fig. 1 and 2, an embodiment of the present invention provides an external spring lotion pump, which has the following overall structure:

the device comprises a pressure head 100, a connecting pipe 200, a piston 500 and a cylindrical pump body 400, wherein the piston 500 is arranged in an inner cavity 406 of the pump body 400, the pressure head 100 is connected with the piston 500 through the connecting pipe 200, a first discharging channel 502 communicated with the connecting pipe 200 and the inner cavity 406 is arranged in the piston 500, and a second discharging channel 104 communicated with the connecting pipe 200 is arranged in the pressure head 100; the pressure head 100 is slidably connected to the pump body 400, a return spring 800 for returning the pressure head 100 is arranged between the pressure head 100 and the pump body 400, the upper part of the pump body 400 is provided with a screw cap 300 connected with the bottle body, the lower part of the inner cavity 406 is connected with a suction pipe 700, and the suction pipe 700 is used for sucking the emulsion in the bottle body; an isolation mechanism 600 is arranged at the lower part of the inner cavity 406, the isolation mechanism 600 comprises a plug 602 and an elastic support member 603, one end of the elastic support member 603 is connected with the plug 602, and the other end is connected with the inner cavity 406; the connection between the lower end of the inner cavity 406 and the straw 700 is provided with a first through hole 4032 having an inverted cone shape, and under the action of the elastic support 603, the plug 602 seals the first through hole 4032 from the upper side to isolate the inner cavity 406 from the straw 700. The inner side of the upper part of the connecting pipe 200 is also provided with an isolation mechanism 600, one end of the elastic support 603 is connected with the plug 602, and the other end is connected with the connecting pipe 200; a first isolation plate 204 is disposed on the inner side of the upper portion of the connection pipe 200, a fourth through hole 2041 is formed in the middle of the first isolation plate 204, and under the action of the elastic support 603, the plug 602 seals the fourth through hole 2041 from the upper side to isolate the upper and lower cavities of the connection pipe 200.

The concrete structure is as follows:

referring to fig. 3, the isolation mechanism 600 includes a cylindrical isolation block 604, an elastic support 603, and a plug 602, wherein a second through hole 605 is formed in the middle of the cylindrical isolation block 604, and a first limit convex ring 601 is arranged outside the cylindrical isolation block 604; in this embodiment, the elastic supporting members 603 are a plurality of supporting elastic pieces which are arranged in a staggered manner and staggered with the second through holes 605, one end of each supporting elastic piece is connected to the plug 602, and the other end of each supporting elastic piece is connected to the cylindrical isolation block 604.

Referring to fig. 4, an insertion portion 105 which can be inserted into the connection pipe 200 is provided in the pressure head 100, and two second outer snap rings 102 are provided in parallel outside the insertion portion 105; the second discharging channel 104 is arranged in the inserting part 105, and extends out of a discharging hole 106 towards one side; two vertical plates are further arranged in the pressure head 100, the vertical plates are arranged on one side of the inserting portion 105, and a clamping groove 103 is formed in a gap between the two vertical plates; the inner wall of the lower portion of the ram 100 is provided with inner threads 101 connected to the screw cap 300.

Referring to fig. 5, a first partition plate 204 is disposed at an upper portion of an inner cavity of the connection pipe 200, a fourth through hole 2041 for communicating an upper cavity with a lower cavity of the connection pipe 200 is formed at a middle portion of the first partition plate 204, a second concave limiting ring 203 is disposed on an inner wall of the upper cavity of the connection pipe 200, and the second concave limiting ring 203 is matched with a first convex limiting ring 601 on a cylindrical partition block 604. The first limit convex ring 601 is embedded into the second limit concave ring 203 to realize the edge sealing between the cylindrical isolation block 604 and the upper cavity of the connecting pipe 200; meanwhile, the plug 602 is in contact with the fourth through hole 2041 to seal the upper and lower chambers of the connection pipe 200. The upper chamber of connecting pipe 200 is provided with the second interior lock concave ring 202 that matches with second outer lock convex ring 102, and second interior lock concave ring 202 is located the upper portion of second spacing concave ring 203, and second outer lock convex ring 102 imbeds second interior lock concave ring 202 to realize the sealing connection between cartridge portion 105 and connecting pipe 200, prevent that emulsion from leaking from the junction of the two. The top of the connection pipe 200 is also turned outward to form a second extension 201 in a ring shape. The lower outer side of the connection pipe 200 is further provided with a first outer snap ring 205 connected with the piston 500.

Referring to fig. 6, a vertical groove 301 is formed in the top of the screw cap 300, the bottom of the groove 301 extends upward to form a first inner cylinder 307 with an opening at the upper end, the height of the first inner cylinder 307 is smaller than that of the groove 301, a second sealing ring 3071 is arranged on the inner wall of the first inner cylinder 307, the connecting pipe 200 passes through the first inner cylinder 307, and the outer wall of the connecting pipe 200 is sealed with the first inner cylinder 307 by the second sealing ring 3071. As shown in fig. 1 and 2, the return spring 800 is sleeved outside the connection pipe 200, one end of the return spring 800 abuts against the bottom of the second extension 201, and the other end abuts against the bottom of the groove 301. The upper part of the screw cap 300 is turned outwards to form an annular third outward extending part 302, and a third inner snap concave ring 3021 is arranged on the inner wall of the third outward extending part 302. The upper part of the third extending part 302 is outwards turned to form a ring-shaped fourth extending part 303, the outer side of the fourth extending part 303 is provided with an external thread 3031 matched with the internal thread 101, and the pressure head 100 is connected with the screw cap 300 through threads. The junction of the third extension 302 and the fourth extension 303 is provided with a protrusion 305, the protrusion 305 is matched with the slot 103 on the pressing head 100, and the protrusion 305 is inserted into the slot to further ensure the connection between the pressing head 100 and the screw cap 300, if the protrusion 305 on the screw cap 300 is not in the slot 103 of a product purchased in a supermarket, it indicates that the product is opened. The fourth extending portion 303 extends downward to form a first connecting portion 304 for connecting with the opening of the bottle, the inner wall of the first connecting portion 304 is provided with threads 3041, and the first connecting portion 304 is connected with the bottle by threads. A plurality of connecting strips 306 are uniformly arranged between the bottle bodies at the bottom ends of the first connecting parts 304, and the number of the connecting strips 306 can be adjusted according to actual use conditions so as to further strengthen the connection between the emulsion pump and the bottle bodies.

Referring to fig. 7, the upper section and the middle section of the inner cavity 406 of the pump body 400 are straight walls, the diameter of the upper section is larger than that of the middle section, a third external snap convex ring 401 is arranged on the outer side of the upper portion of the pump body 400, the third external snap convex ring 401 is matched with a third internal snap concave ring 3021 on the third outer extension portion 302, the screw cap 300 is inserted into the upper portion of the pump body 400, and the third external snap convex ring 401 is embedded into the third internal snap concave ring 3021, so that sealing between the pump body 400 and the screw cap 300 is realized. The disc 402 extends circumferentially outside the upper portion of the pump body 400, the disc 402 extends downwards to form an annular second connecting portion 407, the outer diameter of the second connecting portion 407 is matched with the outer diameter of the opening of the bottle body, and a third sealing ring 4071 is arranged outside the second connecting portion 407 to achieve sealing connection between the pump body 400 and the bottle body. A second partition plate 405 is arranged at the lower part of an inner cavity 406 of the pump body 400, the middle part of the second partition plate 405 extends downwards to form a second inner cylinder 403, a first limit concave ring 4031 is arranged on the inner wall of the second inner cylinder 403, the first limit concave ring 4031 is matched with a first limit convex ring 601 on the cylindrical partition block 604, and the first limit convex ring 601 is embedded into the first limit concave ring 4031 to realize the sealing between the cylindrical partition block 604 and the second inner cylinder 403; the second inner cylinder 403 is inserted into the suction pipe 700 to realize the connection between the pump body 400 and the suction pipe 700; the middle part of the bottom end of the second inner cylinder 403 is provided with a first through hole 4032 in the shape of an inverted cone, and the plug 602 closes the first through hole 4032 to isolate the second inner cylinder 403 from the suction pipe 700, i.e. to isolate the circulation channel of the emulsion.

Referring to fig. 8, the middle outer side of the piston 500 extends upwards to form a ring-shaped first outer extension 503, a first inner snap female ring 5031 is arranged on the inner wall of the first outer extension 503, the first inner snap female ring 5031 is matched with the first outer snap male ring 205 on the connecting pipe 200, the connecting pipe 200 is inserted into the first outer extension 503, and the first outer snap male ring 205 is embedded into the first inner snap female ring 5031 to realize the sealing connection between the connecting pipe 200 and the piston 500. The top end of the first outer extension part 503 is turned outwards to form a ring-shaped fifth outer extension part 501, a first sealing ring 5011 is arranged on the outer wall of the fifth outer extension part 501, the diameter of the first sealing ring 5011 is matched with the middle inner diameter of the inner cavity 406 of the pump body 400, and sealing between the piston 500 and the pump body 400 is achieved through the first sealing ring 5011. The first discharging channel 502 is arranged in the middle of the piston 500 along the axial direction, the lower part of the piston 500 is provided with a third through hole 505 along the radial side of the piston 500, the two opposite sides of the lower part of the piston 500 are provided with the third through hole 505, and the third through hole 505 is communicated with the inner cavity 406 and the first discharging channel 502.

The emulsion in the inner cavity 406 of the pump body 400 enters the first discharging channel 502 through the two third through holes 505, which is beneficial to accelerating the flow of the emulsion. The bottom end of the piston 500 extends downwards to form a third connecting part 504, the outer wall of the third connecting part 504 is provided with a fourth sealing ring 5041, the third connecting part 504 is inserted into the second inner cylinder 403 of the pump body 400, and the fourth sealing ring 5041 seals the third connecting part 504 and the second inner cylinder 403.

The working process is as follows:

when the lotion pump is in an initial state as shown in fig. 2, when the lotion pump is in use, the pressure head 100 is pressed, the connecting pipe 200 drives the piston 500 to move downwards to compress air in the inner cavity 406 of the pump body 400, after the pressure head 100 is released, the return spring 800 rebounds the pressure head 100 to the original position, the piston 500 moves upwards to cause that the air pressure in the inner cavity 406 is smaller than the air pressure in the lotion bottle body, when the pressure applied to the bottom of the plug 602 at the connection part of the suction pipe 700 and the inner cavity 406 is larger than the supporting force of the supporting elastic sheet, the plug 602 at the connection part floats upwards, the first through hole 4032 is opened to compress the supporting elastic sheet, and the lotion in the bottle body enters the inner cavity 406 through the; pressing the pressure head 100 again, and moving the piston 500 downwards, so that the emulsion in the inner cavity 406 enters the first discharge channel 502 of the piston 500 and the connecting pipe 200 through the third through hole 505; after the pressure head 100 is released, the return spring 800 rebounds the pressure head 100 to the original position, the air pressure in the connecting pipe 200 is greater than the air pressure in the pressure head 100, when the pressure applied to the bottom of the plug 602 at the connection position of the connecting pipe 200 and the pressure head 100 is greater than the supporting force of the supporting elastic sheet, the plug 602 at the connection position floats upwards, the fourth through hole 2041 is opened, and the emulsion enters the second discharge channel 104 of the pressure head 100 from the connecting pipe 200 and flows out from the discharge hole 106. The head 100 is continuously pressed and the emulsion is continuously discharged from the outlet 106. When the device is not used, the two plugs 602 automatically reset under the action of the supporting elastic sheet, the first through hole 4032 and the fourth through hole 2041 are plugged again, the discharge channel is blocked, and the emulsion does not flow out any more.

By adopting the emulsion pump in the technical scheme, the plug 602 mainly blocks the first through hole 4032 and the fourth through hole 2041 by means of the supporting force of the elastic supporting piece 603, and does not depend on the gravity of the plug, so that once the bottle body is inclined or inverted, the plug 602 is not easy to dislocate under the supporting force of the elastic supporting piece 603, the discharge channel is still blocked, and the emulsion is difficult to automatically flow out of the pressure head 100.

While the above detailed description describes the preferred embodiment of the present invention, it is not intended to limit the scope of the present invention, but rather, the present invention is intended to cover by those skilled in the art all such modifications and equivalents as may be included within the spirit and scope of the present invention.

Claims

1. An external spring lotion pump comprises a pressure head (100), a connecting pipe (200), a piston (500) and a cylindrical pump body (400), wherein the piston (500) is arranged in an inner cavity (406) of the pump body (400), the pressure head (100) and the piston (500) are connected through the connecting pipe (200), a first discharging channel (502) communicated with the connecting pipe (200) and the inner cavity (406) is arranged in the piston (500), and a second discharging channel (104) communicated with the connecting pipe (200) is arranged in the pressure head (100); the pressure head (100) is connected to the pump body (400) in a sliding mode, a return spring (800) is arranged between the pressure head (100) and the pump body (400), and the lower portion of the inner cavity (406) is connected with a suction pipe (700); the method is characterized in that: the inner side of the upper part of the connecting pipe (200) and the lower part of the inner cavity (406) are respectively provided with an isolation mechanism (600), each isolation mechanism (600) comprises a plug (602) and an elastic support piece (603), one end of each elastic support piece (603) is connected with the corresponding plug (602), and the other end of each elastic support piece (603) is connected with the corresponding connecting pipe (200) and the inner cavity (406); a first isolation plate (204) is arranged on the inner side of the upper part of the connecting pipe (200), a fourth through hole (2041) is formed in the middle of the first isolation plate (204), and under the action of the elastic supporting piece (603), the plug (602) seals the fourth through hole (2041) from the upper side so as to isolate the upper cavity and the lower cavity of the connecting pipe (200); a first through hole (4032) is formed in the bottom end of the connecting part of the inner cavity (406) and the suction pipe (700), and under the action of the elastic support (603), the plug (602) seals the first through hole (4032) from the upper side to isolate the inner cavity (406) and the suction pipe (700).

2. The external spring lotion pump as claimed in claim 1, wherein: the isolation mechanism (600) further comprises a cylindrical isolation block (604), one end of the elastic support piece (603) is connected with the plug (602), and the other end of the elastic support piece is connected with the cylindrical isolation block (604).

3. The external spring lotion pump as claimed in claim 2, wherein: the middle part of the cylindrical isolation block (604) is provided with a second through hole (605), the elastic supporting pieces (603) are a plurality of supporting elastic pieces which are arranged in a staggered mode and staggered with the second through hole (605), one end of each supporting elastic piece is connected with the plug (602), and the other end of each supporting elastic piece is connected with the cylindrical isolation block (604).

4. The external spring lotion pump as claimed in claim 1, wherein: a first outer buckling convex ring (205) is arranged on the outer side of the lower portion of the connecting pipe (200), a first outer extension portion (503) which is annular is upwards extended from the outer side of the middle portion of the piston (500), and a first inner buckling concave ring (5031) which is matched with the first outer buckling convex ring (205) is arranged on the inner wall of the first outer extension portion (503).

5. The external spring lotion pump as claimed in claim 4, wherein: the top end of the first outer extension portion (503) is outwards turned to form a fifth outer extension portion (501) in a ring shape, and a first sealing ring (5011) matched with the inner diameter of the middle of the inner cavity (406) is arranged on the outer wall of the fifth outer extension portion (501).

6. The external spring lotion pump as claimed in claim 1, wherein: the first discharging channel (502) is arranged in the middle of the piston (500) in the axial direction, a third through hole (505) is formed in the lower portion of the piston (500) along the radial side face of the piston (500), and the third through hole (505) is communicated with the inner cavity (406) and the first discharging channel (502).

7. The external spring lotion pump as claimed in claim 1, wherein: an insertion part (105) which can be inserted into the connecting pipe (200) is arranged in the pressure head (100), a second outer buckling convex ring (102) is arranged on the outer side of the insertion part (105), and a second inner buckling concave ring (202) matched with the second outer buckling convex ring (102) is arranged on the upper cavity of the connecting pipe (200).

8. The external spring lotion pump as claimed in claim 7, wherein: the second discharging channel (104) is arranged in the inserting part (105) and extends out of a discharging hole (106) towards one side.

9. The external spring lotion pump as claimed in claim 1, wherein: the top of the connecting pipe (200) is outwards turned to form an annular second external extension part (201), the top of the spiral cover (300) is provided with a groove (301), the bottom of the groove (301) upwards extends to form a first inner cylinder (307) with an opening at the upper end, the connecting pipe (200) penetrates through the first inner cylinder (307), the reset spring (800) is sleeved on the outer side of the connecting pipe (200), one end of the reset spring (800) is abutted to the second external extension part (201), and the other end of the reset spring is abutted to the groove (301).

10. The external spring lotion pump as claimed in claim 9, wherein: the outer side of the upper portion of the pump body (400) is provided with a third outer buckling convex ring (401), the upper portion of the screw cap (300) is outwards turned to form an annular third outer extension portion (302), and the inner wall of the third outer extension portion (302) is provided with a third inner buckling concave ring (3021) matched with the third outer buckling convex ring (401).