Pump with sealing nozzle structure

Abstract

The invention relates to the field of pumps, in particular to a pump with a sealing nozzle structure, which comprises a pressing head, a sealing strip and a mounting cover, a first mounting through hole is formed in the mounting cover, an elastic connecting part is arranged in the first mounting through hole, a second mounting through hole is formed in the elastic connecting part, and a mounting part is arranged in the second mounting through hole; the mounting cover is fixedly connected with the pressing head; the middle part of the plugging strip is fixedly connected with the mounting part, and the plugging strip is elastic; a liquid outlet nozzle is arranged on the pressing head, and one end of the plugging strip is clamped in the liquid outlet nozzle. The sealing structure has the advantage that the sealing of the liquid outlet nozzle is very reliable.

Description

Technical Field

[0001] The invention relates to the field of pumps, in particular to a pump with a sealing nozzle structure. Background Art

[0002] The pump body on some daily chemical packaging bottles is provided with a sealing structure at the liquid outlet to prevent air from entering the liquid outlet and causing oxidation or solidification of the daily chemical bottle, and to prevent mosquitoes from entering the pump body.

[0003] For example, the Chinese patent with publication number CN218143214U applied by the applicant discloses a press pump that prevents emulsion contamination, wherein an arc-shaped diaphragm protruding outward is provided at one end of the sleeve member away from the liquid outlet pipe, and a cross-cutting band is provided on the arc-shaped diaphragm. The arc-shaped diaphragm separates four pieces of the soft plastic sheets at the periphery of the cross-cutting band, and adjacent soft plastic sheets can abut against each other to close the cross-cutting band.

[0004] It uses an arc-shaped diaphragm with a cross-cut band to seal the liquid outlet. This seal is not reliable. For example, when a user travels with daily chemicals to a low-pressure area, the pressure difference inside and outside the pump can open the arc-shaped diaphragm, causing liquid to spray out.

[0005] Therefore, the prior art needs to be improved. Summary of the invention

[0006] In order to solve the above technical problems, the object of the present invention is to provide a pump with a sealing structure, which has the advantage of reliable sealing.

[0007] The technical solution adopted by the present invention to solve the problem is: a pump with a sealing structure includes a press head, and also includes: a sealing strip and a mounting cover; an elastic connecting part is provided in the mounting cover, a second mounting through hole is provided in the elastic connecting part, and a mounting part is provided in the second mounting through hole; the mounting cover is fixedly connected to the press head; the middle part of the sealing strip is fixedly connected to the mounting part, and the sealing strip is elastic; a liquid outlet is provided on the press head, and one end of the sealing strip is clamped in the liquid outlet.

[0008] In a further preferred technical solution, the elastic connecting portion is ring-shaped, and a groove is provided on the top of the elastic connecting portion.

[0009] In a further preferred technical solution, a card slot is provided on the installation cover, and the other end of the sealing strip is card-connected to the card slot.

[0010] In a further preferred technical solution, a limiting protrusion is provided on the installation cover, the limiting protrusion is provided below the blocking strip, and the limiting protrusion is provided on the opposite side of the card slot.

[0011] In a further preferred technical solution, a sealing surface is provided at one end of the sealing strip, the sealing surface is in a conical shape, the small end of the sealing surface faces outward, and the sealing surface is adapted to the inner wall surface of the liquid outlet nozzle.

[0012] A further preferred technical solution also includes a tooth cover, a spring, a main column, a main body, a small piston and a large piston; a first annular groove opening upward is provided in the tooth cover, the mounting cover is slidably connected to the first annular groove up and down, a second annular groove is provided on the inner side of the first annular groove, the spring is mounted in the second annular groove, a through hole is provided in the second annular groove, and the main column is slidably mounted in the through hole up and down; the mounting portion is fixedly connected to the main column; the small piston is fixedly mounted on the bottom of the main column, and a liquid inlet is provided between the small piston and the main column; the main body is fixedly mounted on the lower part of the tooth cover, the large piston is slidably connected to the inner wall of the main body up and down, an air supply hole is provided on the inner wall of the main body, and the large piston can block the air supply hole; the large piston is arranged above the small piston, and after the main column slides down a certain distance, it can push the large piston to move downward and expose the air supply hole on the upper side of the large piston.

[0013] In a further preferred technical solution, a vertically arranged guide strip is provided on the inner wall of the mounting cover, a transverse groove and a vertical groove are provided in the tooth cover, one end of the transverse groove is connected to the upper end of the vertical groove, and a positioning groove is provided at the other end of the transverse groove, and the depth of the transverse groove is less than the depth of the vertical groove and the depth of the positioning groove; the guide strip can be embedded in the positioning groove, and when the mounting cover rotates relative to the tooth cover, the guide strip can rotate in the transverse groove and be embedded in the vertical groove, and the guide strip can slide up and down relative to the vertical groove.

[0014] In a further preferred technical solution, a ball valve is further included, which is movably connected in the main body and is used to block the liquid inlet hole at the bottom of the main body.

[0015] The beneficial effect of the present invention is that when in use, the liquid outlet nozzle and one end of the blocking strip can only be disconnected by pressing the button, and changes in ambient air pressure are unlikely to disconnect the liquid outlet nozzle and one end of the blocking strip, so the sealing of the liquid outlet nozzle is very reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further explained below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 A three-dimensional diagram of a pump with a sealing structure according to the present invention;

[0018] Figure 2 It is a cross-sectional view of a pump with a sealing nozzle structure of the present invention, wherein the liquid outlet nozzle is sealed by a sealing strip;

[0019] Figure 3 It is a cross-sectional view of a pump with a sealing nozzle structure of the present invention, wherein the liquid outlet nozzle is not blocked by a blocking strip;

[0020] Figure 4 An exploded view of a pump with a sealing structure according to the present invention;

[0021] Figure 5 for Figure 4 A partial enlarged view of

[0022] Figure 6 One of the perspective views of the installation cover;

[0023] Figure 7 The second is a three-dimensional diagram of the installation cover;

[0024] Figure 8 This is a three-dimensional diagram of the tooth cover.

[0025] In the figure: press head-1, liquid outlet nozzle-11, sealing strip-2, sealing surface-21, mounting cover-3, second mounting through hole-32, mounting part-33, elastic connecting part-37, card groove-35, limiting protrusion-36, guide strip-38, tooth cover-4, first annular groove-41, second annular groove-42, horizontal groove-43, vertical groove-44, positioning groove-45, spring-5, main column-6, 61-liquid inlet, main body-7, air replenishing hole-71, small piston-8, large piston-9, ball valve-10. DETAILED DESCRIPTION

[0026] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 therefore should not be understood as a limitation on the present invention.

[0028] In the description of the present invention, the meaning of "several" is one or more, the meaning of "more" is more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of the first and the second, it is only for the purpose of distinguishing the technical features, and it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features. In the description of the present invention, unless otherwise clearly defined, the terms such as "set", "install", and "connect" should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meaning of the above terms in the present invention in combination with the specific content of the technical solution.

[0029] Reference Figures 1 to 8 , a pump with a sealing structure, comprising:

[0030] The pressing head 1 also includes: a sealing strip 2 and a mounting cover 3; an elastic connecting portion 37 is provided in the mounting cover 3, a second mounting through hole 32 is provided in the elastic connecting portion 37, and a mounting portion 33 is provided in the second mounting through hole 32; the mounting cover 3 is fixedly connected to the pressing head 1; the middle portion of the sealing strip 2 is fixedly connected to the mounting portion 33, and the sealing strip 2 is elastic; a liquid outlet nozzle 11 is provided on the pressing head 1, and one end of the sealing strip 2 is clamped in the liquid outlet nozzle 11.

[0031] Reference Figure 2 When the pressing head 1 is not pressed, one end of the blocking strip 2 is clamped in the liquid outlet nozzle 11 to block the liquid outlet nozzle.

[0032] Reference Figure 3 , the pressing head 1 is pressed downward for a distance, the part of the mounting cover 3 outside the elastic connection part 37 moves downward, the elastic connection part 37 is deformed, the position of the mounting part 33 remains unchanged, and since the middle part of the blocking strip 2 is fixedly connected to the mounting part 33, the position of the middle part of the blocking strip 2 remains unchanged, the position of the liquid outlet nozzle 11 moves downward with the pressing head 1, the liquid outlet nozzle 11 is disconnected from one end of the blocking strip 2, and the blocking strip 2 is also deformed. At this time, the liquid outlet nozzle 11 is connected to the second mounting through hole 32 and can discharge liquid. When in use, the pressing head 1 must be pressed to disconnect the liquid outlet nozzle 11 from one end of the blocking strip 2, and the change in ambient air pressure makes it difficult for the liquid outlet nozzle 11 to be disconnected from one end of the blocking strip 2, and the sealing of the liquid outlet nozzle 11 is very reliable.

[0033] In a preferred embodiment, the elastic connection part 37 is annular, and a groove is provided on the top of the elastic connection part 37. The shape of the elastic connection part 37 is conducive to its deformation.

[0034] In a preferred embodiment, a slot 35 is provided on the installation cover 3, and the other end of the blocking strip 2 is clamped on the slot 35. The blocking strip 2 is installed more stably.

[0035] In a preferred embodiment, a limiting protrusion 36 is provided on the mounting cover 3, and the limiting protrusion 36 is provided below the blocking strip 2 and on the opposite side of the card slot 35. The limiting protrusion 36 is provided to prevent the blocking strip 2 from bending and deforming under the action of gravity after long-term use.

[0036] In a preferred embodiment, a sealing surface 21 is provided at one end of the sealing strip 2, and the sealing surface 21 is conical, with the small end of the sealing surface 21 facing outward, and the sealing surface 21 is adapted to the inner wall surface of the liquid outlet nozzle 11. The conical sealing surface 21 is provided to facilitate the sealing surface 21 to slide into the liquid outlet nozzle 11 and fit the liquid outlet nozzle 11 during the process of resetting the pressing head 1 and the sealing strip 2.

[0037] In a preferred embodiment, it also includes a tooth cover 4, a spring 5, a main column 6, a main body 7, a small piston 8, and a large piston 9; the tooth cover 4 is provided with a first annular groove 41 with an opening upward, the mounting cover 3 is connected to the first annular groove 41 for sliding up and down, a second annular groove 42 is provided on the inner side of the first annular groove 41, the spring 5 is installed in the second annular groove 42, a through hole is provided in the second annular groove 42, and the main column 6 is installed in the through hole for sliding up and down; the mounting portion 33 is fixedly connected to the main column 6; the small piston 8 is fixedly installed at the bottom of the main column 6, and a liquid inlet 61 is provided between the small piston 8 and the main column 6; the main body 7 is fixedly installed at the lower part of the tooth cover 4, the large piston 9 is connected to the inner wall of the main body 7 for sliding up and down, an air-filling hole 71 is provided on the inner wall of the main body 7, and the large piston 9 can block the air-filling hole 71; the large piston 9 is arranged above the small piston 8, and the main column 6 can push the large piston 9 to move downward after sliding down a certain distance and expose the air-filling hole 71 on the upper side of the large piston 9.

[0038] In a preferred embodiment, after the liquid outlet nozzle 11 is disconnected from one end of the blocking strip 2, the pressing head 1 is continued to be pressed, the entire mounting cover 3 moves downward, the blocking strip 2 also moves downward, the main column 6 fixed on the mounting portion 33 and the small piston 8 fixed on the main column 6 also move downward, and after a period of time, the large piston 9 also moves downward with the main column 6, and the liquid in the main body 7 is squeezed and moves upward from the liquid inlet 61 between the small piston 8 and the main column 6, and is squeezed out of the pump through the inner cavity of the main column 6, the second mounting through hole 32 and the liquid outlet nozzle 11, and the air replenishing hole 71 is used to balance the pressure between the upper and lower parts of the main body 7.

[0039] In a preferred embodiment, a vertically arranged guide bar 38 is provided on the inner wall of the installation cover 3, a transverse groove 43 and a vertical groove 44 are provided in the tooth cover 4, one end of the transverse groove 43 is connected to the upper end of the vertical groove 44, and a positioning groove 45 is provided at the other end of the transverse groove 43, the depth of the transverse groove 43 is less than the depth of the vertical groove 44 and the depth of the positioning groove 45; the guide bar 38 can be embedded in the positioning groove 45, and when the installation cover 3 rotates relative to the tooth cover 4, the guide bar 38 can rotate in the transverse groove 43 and embed in the vertical groove 44, and the guide bar 38 can slide up and down relative to the vertical groove 44. The push head 1 rebounds upward, and after the guide bar 38 slides vertically to the upper part of the guide bar 38, the push head 1 is rotated, and the installation cover 3 rotates accordingly, and the guide bar 38 rotates in the transverse groove 43 until the guide bar 38 embeds in the positioning groove 45, and the angle between the push head 1 and the installation cover 3 is locked, which can prevent the push head 1 from being accidentally touched.

[0040] In a preferred embodiment, a ball valve 10 is further included, which is movably connected in the main body 7 and is used to block the liquid inlet hole at the bottom of the main body 7. When the button 1 rebounds upward, the air in the upper part of the main body 7 is discharged from the air replenishment hole 71, and negative pressure is generated in the lower part of the main body 7. The ball valve 10 is sucked up by the negative pressure, and the liquid under the ball valve 10 is sucked into the main body 7. Then, the ball valve 10 sinks to the liquid inlet hole under the action of gravity to block the liquid inlet hole.

[0041] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or directly or indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A pump with a sealing structure, comprising a push head (1), characterized in that: Also includes: A sealing strip (2) and a mounting cover (3); The mounting cover (3) is provided with an elastic connection portion (37), the elastic connection portion (37) is provided with a second mounting through hole (32), and the second mounting through hole (32) is provided with a mounting portion (33); the mounting cover (3) is fixedly connected to the pressing head (1); The middle portion of the blocking strip (2) is fixedly connected to the mounting portion (33), and the blocking strip (2) is elastic; The pressing head (1) is provided with a liquid outlet nozzle (11), and one end of the sealing strip (2) is clamped in the liquid outlet nozzle (11).

2. The pump with a sealing structure as claimed in claim 1, characterized in that: The elastic connecting portion (37) is ring-shaped, and a groove is provided on the top of the elastic connecting portion (37).

3. The pump with a sealing structure as claimed in claim 1, characterized in that: The installation cover (3) is provided with a card slot (35), and the other end of the blocking strip (2) is card-connected to the card slot (35).

4. The pump with a sealing structure as claimed in claim 3, characterized in that: The installation cover (3) is provided with a limiting protrusion (36), the limiting protrusion (36) is arranged below the blocking strip (2), and the limiting protrusion (36) is arranged on the opposite side of the card slot (35).

5. The pump with a sealing structure as claimed in claim 1, characterized in that: A sealing surface (21) is provided at one end of the sealing strip (2), the sealing surface is in a conical shape, the small end of the sealing surface (21) faces outwards, and the sealing surface (21) is adapted to the inner wall surface of the liquid outlet nozzle (11).

6. The pump with a sealing structure as claimed in claim 1, characterized in that: It also includes a tooth cover (4), a spring (5), a main column (6), a main body (7), a small piston (8), and a large piston (9); The tooth cover (4) is provided with a first annular groove (41) opening upward, the mounting cover (3) is connected to the first annular groove (41) by sliding up and down, a second annular groove (42) is provided inside the first annular groove (41), the spring (5) is installed in the second annular groove (42), a through hole is provided in the second annular groove (42), and the main column (6) is installed in the through hole by sliding up and down; The mounting portion (33) is fixedly connected to the main column (6); The small piston (8) is fixedly mounted on the bottom of the main column (6), and a liquid inlet (61) is provided between the small piston (8) and the main column (6); The main body (7) is fixedly mounted on the lower part of the tooth cover (4); the large piston (9) is slidably connected to the inner wall of the main body (7) in an up-and-down manner; an air-supply hole (71) is provided on the inner wall of the main body (7); and the large piston (9) can block the air-supply hole (71); The large piston (9) is arranged above the small piston (8), and after the main column (6) slides down a certain distance, it can push the large piston (9) to move downward and expose the air supply hole (71) on the upper side of the large piston (9).

7. The pump with a sealing structure as claimed in claim 6, characterized in that: A vertically arranged guide strip (38) is provided on the inner wall of the mounting cover (3); a transverse groove (43) and a vertical groove (44) are provided in the tooth cover (4); one end of the transverse groove (43) is communicated with the upper end of the vertical groove (44); a positioning groove (45) is provided at the other end of the transverse groove (43); the depth of the transverse groove (43) is less than the depth of the vertical groove (44) and the depth of the positioning groove (45); The guide bar (38) can be embedded in the positioning groove (45); when the mounting cover (3) rotates relative to the tooth cover (4), the guide bar (38) can rotate in the transverse groove (43) and embed in the vertical groove (44); the guide bar (38) can slide up and down relative to the vertical groove (44).

8. The pump with a sealing structure as claimed in claim 1, characterized in that: It also comprises a ball valve (10), which is movably connected inside the main body (7) and is used to block the liquid inlet hole at the bottom of the main body (7).

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