Emulsion pump head assembly

Abstract

The utility model discloses an emulsion pump head assembly, and belongs to the technical field of pumps for cosmetic bottles. An emulsion pump head assembly comprises a pressing part arranged in a pressing mode, a liquid outlet cavity extending outwards is formed in the middle of the pressing part, and the lower end of the liquid outlet cavity is embedded in a pump body assembly; the periphery of the liquid outlet cavity is sleeved with a valve rod, and the valve rod is in sliding connection with the liquid outlet cavity. A plastic spring is arranged between the valve rod and the pump body assembly in a sleeved mode, the upper end of the plastic spring is fixedly connected with the valve rod, and the lower end of the plastic spring abuts against the upper end of the pump body assembly. The plastic spring is arranged in a double-spiral mode, the difference of the starting angles of the spirals is 180 degrees, and the spiral mode is opposite rotation. The materials of the pump head assembly are the same as those of the plastic spring, and recovery is convenient. The wall-mounted cosmetics can be scraped off, the rebound life of the pump body is prolonged, and the manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of pump for cosmetic bottle, more specifically relates to a lotion pump head subassembly. BACKGROUND

[0002] The lotion bottle and the makeup removing oil bottle are generally composed of a pump head and a bottle body, are one of the containers of liquid cream cosmetics, and make the liquid cream cosmetics flow out of the container by pressing the nozzle of the lotion pump. The working principle is that the head cap of the nozzle is pressed to move, the volume of the bottle body is periodically increased and reduced, the pressure of the liquid is increased, and the liquid in the bottle body is sucked and discharged.

[0003] However, the product still has some problems. The spring sleeved on the pump body of the existing makeup removing oil bottle is mostly a metal spring. Although the metal spring has sufficient elasticity and a long service life, the cost is too high. Meanwhile, some makeup removing oil bottles have replaced the metal spring with a plastic spring with a lower cost, but the elasticity of the plastic spring is relatively poor. Finally, since the makeup removing oil bottle contains liquid cream cosmetics, the wall-hanging phenomenon is serious, which leads to the waste of some cosmetics and affects the user's cost-effectiveness evaluation psychology. INVENTION CONTENTS

[0004] The technical problem to be solved by the utility model is to provide a lotion pump head subassembly which can scrape off the wall-hanging cosmetics, improve the rebound life of the pump head, and reduce the manufacturing cost.

[0005] The utility model relates to a lotion pump head subassembly, which comprises a pressing part arranged for pressing, a liquid outlet cavity extending outward is arranged in the middle of the pressing part, the lower end of the liquid outlet cavity is embedded in a pump body subassembly, a valve rod is sleeved on the outer periphery of the liquid outlet cavity, and the valve rod is in sliding connection with the liquid outlet cavity; a plastic spring is sleeved between the valve rod and the pump body subassembly, the upper end of the plastic spring is fixedly connected with the valve rod, and the lower end of the plastic spring is in abutment with the upper end of the pump body subassembly; the plastic spring is arranged in a double helix, the initial angles of the helixes are different by 180 degrees, and the helixes are arranged in a counter-rotating manner; the materials of the pump head subassembly are the same as that of the plastic spring, and the pump head subassembly is convenient to recycle.

[0006] As a further improvement of the utility model, a liquid scraping piece is arranged around the lower end of the pressing part, and the liquid scraping piece is fixedly connected with the pressing part, so that the liquid scraping piece is displaced synchronously with the pressing part.

[0007] As a further improvement of the utility model, a liquid outlet nozzle is arranged laterally and protrudes outward from one end of the pressing part, and the liquid outlet cavity and the liquid outlet nozzle are in communication.

[0008] As a further improvement of the utility model, the lower end of the pressing part is provided with a large ring, the large ring is sleeved on the outer periphery of the lower end of the pressing part; an active cavity is formed in the inner cavity of the upper end of the large ring, the outer peripheral side wall of the pressing part is embedded in the active cavity, and the pressing part is in sliding connection with the active cavity; a butt joint cavity is further arranged on the inner side of the active cavity, and a partition plate is arranged between the butt joint cavity and the active cavity; a threaded groove is formed in the inner periphery of the lower end of the large ring, a connecting plate is arranged in the inner ring of the large ring, and the connecting plate is fixedly connected with the upper end of the pump body assembly; and the threaded groove is in threaded connection with a bottle body.

[0009] As a further improvement of the utility model, the liquid scraping member extends downward along the partition wall on one side of the active cavity, and the liquid scraping member penetrates the connecting plate in the large ring; an inclined first scraping plate is arranged around the lower end of the liquid scraping member, and the first scraping plate is always in abutment with the outer wall of the lower end of the pump body assembly; an outwardly protruding rod body is further arranged on the side of the first scraping plate away from the pump body assembly, an inclined second scraping plate is arranged around the inner wall of the bottle body at the front end of the rod body, and the second scraping plate is always in abutment with the inner wall of the bottle body.

[0010] As a further improvement of the utility model, the upper end of the pump body assembly is provided with a piston, and the piston is arranged around the outer periphery of the liquid outlet cavity; a pump core is arranged in the middle part of the piston, the pump core is arranged in the liquid outlet cavity, the lower end of the pump core is sleeved with the outlet of the liquid outlet cavity, and the inner side wall of the pump body assembly is abutted by the piston; a spring sleeve is arranged at the lower end of the pump core, and the spring sleeve is fixedly connected with the inner wall of the pump body assembly.

[0011] As a further improvement of the utility model, the lower end of the pump body assembly is provided with a connecting groove, and a hose can be embedded in the connecting groove.

[0012] As a further improvement of the utility model, the bottle body is provided with a cavity in the middle part, and an opening is arranged at the upper end of the bottle body.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The utility model maintains the spring effect in the pressing part at the same level compared with the prior art, but the cost is greatly reduced, the metal spring or single plastic spring in the prior art is replaced by a double-spiral plastic spring, the spring force is maintained, the spring life is guaranteed, and the cost is reduced. The liquid scraping member is arranged in cooperation with the pressing part, the liquid scraping member realizes scraping of the liquid cream hanging on the outer wall of the pump body assembly and the inner wall of the bottle body, the performance-cost ratio of the product is improved, and the waste of the liquid cream of the cosmetic is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a sectional structure schematic view of the utility model;

[0016] Figure 2 It is a structure schematic view of the plastic spring of the utility model;

[0017] Figure 3 Part of the cross-sectional structure of the utility model is shown in the figure;

[0018] Figure 4 The utility model Figure 3 The enlarged structure of position A in the figure.

[0019] Figure label explanation:

[0020] Pressing part 1, liquid outlet nozzle 11, liquid outlet cavity 12, valve rod 13, large circle 2, movable cavity 21, abutment cavity 211, thread groove 22, liquid scraping piece 3, first scraping plate 31, second scraping plate 32, plastic spring 4, pump body assembly 5, abutment groove 51, piston 52, pump core 53, elastic sleeve 54, bottle body 6. Specific implementation

[0021] Specific embodiment one: please refer to Figures 1-4 A kind of emulsion pump head assembly, including pressing part 1, the pressing part 1 one end side is outwardly provided with liquid outlet nozzle 11, liquid outlet nozzle 11 is communicated with the inner cavity of pressing part 1.The inner cavity of pressing part 1 middle part is provided with liquid outlet cavity 12, and the liquid outlet cavity 12 is interconnected with liquid outlet nozzle 11.Liquid outlet cavity 12 outer periphery is sheathed with valve rod 13, and the valve rod 13 is slidably connected with liquid outlet cavity 12.The liquid outlet cavity 12 is extended to pump body assembly 5 along the inner cavity of pressing part 1 outward.

[0022] The lower end of the pressing part 1 is provided with a large circle 2, and the large circle 2 is sheathed on the outer periphery of the lower end of the pressing part 1.A movable cavity 21 is formed in the inner cavity of the upper end of the large circle 2, and the outer peripheral side wall of the pressing part 1 is embedded in the movable cavity 21, and the pressing part 1 is slidably connected with the movable cavity.In normal circumstances, the outer peripheral side wall of the pressing part 1 is located at the upper end of the movable cavity 21.The inner side of the movable cavity 21 is also provided with an abutment cavity 211, and a partition is provided between the abutment cavity 211 and the movable cavity 21.The inner periphery of the lower end of the large circle 2 is provided with a thread groove 22, and the inner circle middle part of the large circle 2 is provided with a connecting plate, and the connecting plate is fixedly connected with the upper end of the pump body assembly 5.The bottle body 6 is screw-connected in the thread groove 22, and the middle part of the bottle body 6 is a cavity, and the upper end of the bottle body 6 is provided with an opening to enable the pump body assembly 5 to enter the cavity of the bottle body 5.

[0023] The liquid scraping piece 3 is wound on the inner wall of the lower end of the pressing part 1, and the liquid scraping piece 3 is fixedly connected with the inner wall of the lower end of the pressing part 1.The liquid scraping piece 3 is arranged to extend downward along the side partition wall of the movable cavity 21, and the liquid scraping piece 3 penetrates the connecting plate in the large circle 2.The lower end of the liquid scraping piece 3 is wound with an inclined first scraping plate 31, and the first scraping plate 31 always abuts the outer wall of the lower end of the pump body assembly 5.The side, away from the pump body assembly 5, of the first scraping plate 31 is also provided with an outwardly protruding shaft, and the shaft is provided with an inclined second scraping plate 32 around the inner wall of the bottle body 6, and the second scraping plate 32 always abuts the inner wall of the bottle body 6.

[0024] The lower end of the valve rod 13 is provided with a plastic spring 4, which is sleeved on the outer periphery of the liquid outlet cavity 12, and located in the abutting cavity 211. The plastic spring 4 is provided in a double helix, and the starting angles of the helixes are different by 180 degrees, and the helixes are counter-rotating.

[0025] The connection between the pump body assembly 5 and the large circle 2 is formed with an abutting groove 51, the upper end of which abuts against the lower end of the plastic spring 4, and the plastic spring 4 always abuts against the upper end of the abutting groove 51. The lower end of the abutting groove 51 is provided with a piston 52, which is arranged around the outer periphery of the liquid outlet cavity 12. The middle part of the piston 52 is provided with a pump core 53, which is arranged in the liquid outlet cavity 12, and the lower end of the pump core 53 covers the outlet of the liquid outlet cavity 12, and abuts against the inner side wall of the pump body assembly 5 through the piston 52, so as to realize the sealing of the liquid outlet cavity 12 close to the outlet of the pump core 53. The lower end of the pump core 53 is provided with an elastic sleeve 54, which is fixedly connected with the inner wall of the pump body assembly 5. The lower end of the pump body assembly 5 is provided with a connecting groove, in which a hose can be embedded, so as to realize the extraction of the cosmetic liquid in the inner cavity of the bottle body 6.

[0026] The materials of all the components are consistent with the material of the plastic spring 4, which is convenient for subsequent unified recycling.

[0027] Working principle:

[0028] In use, the pump body assembly extracts the liquid in the bottle body by pressing the pressing part into the movable cavity, and the movable cavity is the pressing distance each time. When the pressing part is pressed, the valve rod extrudes the spring abutting cavity to displace, and at the same time, the pump body assembly moves downward to extract the liquid in the bottle body. In the pressing process, the liquid scraping member synchronously displaces with the pressing part, so that the liquid scraping member displaces upward and downward on the outer periphery of the pump body assembly and the inner wall of the bottle body, and the scraping plates of the liquid scraping member scrape the liquid surface on the wall respectively, so that the scraped liquid surface flows downward to drive the liquid on the wall to move downward collectively, which greatly reduces the liquid wall hanging phenomenon.

Claims

1. A pump head assembly for a pump for dispensing a liquid, the pump head assembly comprising: The press part (1) is provided with a liquid outlet cavity (12) extending outward in the middle, and the lower end of the liquid outlet cavity (12) is embedded in the pump body assembly (5); the outer periphery of the liquid outlet cavity (12) is sleeved with a valve rod (13), and the valve rod (13) is in sliding connection with the liquid outlet cavity (12); a plastic spring (4) is sleeved between the valve rod (13) and the pump body assembly (5), the upper end of the plastic spring (4) is fixedly connected with the valve rod (13), and the lower end of the plastic spring (4) is in abutment with the upper end of the pump body assembly (5); the plastic spring (4) is provided in a double helix, the initial angles of the helixes are different by 180 degrees, and the helixes are counter-rotating; the materials of the pump head assembly are the same as that of the plastic spring (4), so that recycling is facilitated.

2. A pump head assembly according to claim 1, wherein: The lower end of the press part (1) is provided with a liquid scraping member (3) embedded thereon, and the liquid scraping member (3) is fixedly connected with the press part (1) so as to be displaced synchronously with the press part (1).

3. A pump head assembly according to claim 1, wherein: One end of the press part (1) is provided with a liquid outlet nozzle (11) outwardly protruding, and the liquid outlet cavity (12) and the liquid outlet nozzle (11) are in communication with each other.

4. A pump head assembly according to claim 2, wherein: The lower end of the press part (1) is provided with a large ring (2) sleeved on the outer periphery of the lower end of the press part (1); the upper end of the large ring (2) is formed with a movable cavity (21) in the inner cavity, the outer peripheral sidewall of the press part (1) is embedded in the movable cavity (21), and the press part (1) is in sliding connection with the movable cavity; the inner side of the movable cavity (21) is further provided with an abutment cavity (211), and a partition is arranged between the abutment cavity (211) and the movable cavity (21); the lower end of the large ring (2) is provided with a threaded groove (22) in the inner periphery, the inner ring of the large ring (2) is provided with a connecting plate, and the connecting plate is fixedly connected with the upper end of the pump body assembly (5); the threaded groove (22) is threadedly connected with a bottle body (6).

5. A pump head assembly according to claim 4, wherein: The liquid scraping member (3) extends downward along the partition wall on one side of the movable cavity (21), and penetrates through the connecting plate in the large ring (2); the lower end of the liquid scraping member (3) is provided with an inclined first scraping plate (31) embedded thereon, and the first scraping plate (31) is always in abutment with the lower end of the outer wall of the pump body assembly (5); the side of the first scraping plate (31) away from the pump body assembly (5) is further provided with a rod body outwardly protruding, and the front end of the rod body is provided with an inclined second scraping plate (32) embedded on the inner wall of the bottle body (6), and the second scraping plate (32) is always in abutment with the inner wall of the bottle body (6).

6. A pump head assembly according to claim 1, wherein: The upper end of the pump body assembly (5) is provided with a piston (52) embedded on the outer periphery of the liquid outlet cavity (12); the middle part of the piston (52) is provided with a pump core (53), and the pump core (53) is arranged in the liquid outlet cavity (12), and the lower end of the pump core (53) covers the outlet of the liquid outlet cavity (12) and abuts against the inner sidewall of the pump body assembly (5) through the piston (52); the lower end of the pump core (53) is provided with a spring sleeve (54) fixedly connected with the inner wall of the pump body assembly (5).

7. A pump head assembly according to claim 1, wherein: The lower end of the pump body assembly (5) is provided with a connecting groove in which a hose can be embedded.

8. A pump head assembly according to claim 4, wherein: The middle part of the bottle body (6) is provided with a cavity, and the upper end of the bottle body (6) is provided with an opening.

Images