An anti-blocking ventilation structure external spring lotion pump

Abstract

The present invention discloses an external spring lotion pump with an anti-blocking ventilation structure, comprising a pump chamber, a bottle lock cover is provided at the upper end of the pump chamber, a pumping assembly for pumping out lotion is provided in the pump chamber, a cushion valve is sleeved on the pump chamber, the cushion valve is located on the inner side of the bottle lock cover and is used to cooperate with the bottle lock cover to seal and lock on the bottle mouth of the container, a ventilation hole is opened on the side of the pump chamber, and a soft sleeve with elasticity and softness is provided on the cushion valve, the soft sleeve is sleeved on the outer side of the pump chamber and seals the ventilation hole on the inner side so that the material liquid cannot enter the ventilation hole from the outside of the pump chamber, the structure is simple, and the material body can be prevented from entering the lotion pump from the ventilation hole to block the channel, so as to make the ventilation smooth and prevent the bottle from deflation.

Description

Technical Field

[0001] The invention relates to an external spring lotion pump with an anti-blocking ventilation structure. Background Art

[0002] Existing lotion pumps are usually equipped with ventilation holes to add air to the lotion container to prevent the inside of the lotion container from shrinking and deforming due to the reduction of solution during use, resulting in low air pressure. Due to structural limitations, the usual ventilation holes need to prevent the lotion in the container from entering the pump chamber through the ventilation holes, which may cause the lotion to overflow. The ventilation holes are all small holes set on the pump body. Existing lotion pumps have no problem with general applications, but for some lotions with high viscosity, poor ventilation often occurs after a period of use. In addition, the air intake gap between the center hole of the lock cover and the main column is limited, and the center hole has a certain depth for positioning when the main column moves up and down. After a period of use, the material sticks to the main column, causing the center hole to be blocked and affecting ventilation, resulting in a deflated bottle.

[0003] The present invention is made based on this situation. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an anti-blocking ventilation structure external spring lotion pump, which has the characteristics of simple structure, preventing the material from entering the lotion pump through the ventilation hole to block the channel, so as to make the ventilation smooth and prevent the bottle from deflation.

[0005] The present invention is achieved through the following technical solutions:

[0006] An external spring lotion pump with an anti-blocking ventilation structure comprises a pump chamber, a bottle lock cap is provided at the upper end of the pump chamber, a pumping assembly for pumping out lotion is provided in the pump chamber, a cushion valve is sleeved on the pump chamber, the cushion valve is located on the inner side of the bottle lock cap and is used to cooperate with the bottle lock cap to seal and lock on the bottle mouth of the container, a ventilation hole is opened on the side of the pump chamber, and a flexible and soft sleeve is provided on the cushion valve, the soft sleeve is sleeved on the outer side of the pump chamber and seals the ventilation hole on the inner side so that the material liquid cannot enter the ventilation hole from outside the pump chamber.

[0007] In the anti-blocking ventilation structure external spring lotion pump as described above, the soft sleeve is a conical sleeve with a larger inner hole at the top and a smaller inner hole at the bottom, which is arranged on the bottom of the cushion valve. The lower end of the conical sleeve is sealed and connected to the outer side of the pump chamber below the ventilation hole.

[0008] In the above-mentioned anti-blocking ventilation structure external spring lotion pump, a plurality of ventilation holes are provided along the axial direction of the pump chamber, and a supporting protrusion protruding outward is provided on the side of the pump chamber and between two adjacent ventilation holes.

[0009] In the above-mentioned anti-blocking ventilation structure external spring lotion pump, the lower end of the soft sleeve has an inwardly contracted opening.

[0010] In the above-mentioned anti-blocking ventilation structure external spring lotion pump, the wall thickness of the soft sleeve gradually becomes thinner from top to bottom, and a circle of reinforcing ribs is provided on the outside near the middle and lower part.

[0011] In the above-mentioned anti-blocking ventilation structure external spring lotion pump, the cushion valve and the soft sleeve are integrally formed.

[0012] In the above-mentioned anti-blocking ventilation structure external spring lotion pump, buckle lines protruding outward are arranged at circumferential intervals on the outer side of the pump chamber, and the buckle lines are blocked below the soft sleeve.

[0013] An external spring lotion pump with an anti-blocking ventilation structure as described above, the pumping assembly includes a push head, a main column, a sub-column, a piston, a spring, a one-way valve and a locking cover, the main column is arranged in the pump chamber, the push head is plugged and fixed on the upper end of the main column, the sub-column is connected to the lower end of the main column, the piston is sleeved on the outside of the main column and the sub-column, the one-way valve is arranged in the pump chamber and is located below the piston to feed liquid into the pump chamber, the upper end of the locking cover is connected and fixed to the upper end of the pump chamber and the locking cover is provided with a spring cavity inserted into the pump chamber, the bottom of the spring cavity is provided with a central hole for the main column to pass through, the sub-column and the piston are located below the spring cavity, the spring is located in the spring cavity and is used to press the main column upward, an air intake gap is provided between the main column and the locking cover, and between the main column and the central hole, and the locking cover limits the piston below the ventilation hole.

[0014] In the external spring lotion pump with anti-blocking ventilation structure as described above, the upper part of the pump chamber is provided with an annular baffle that can block the top plate of the bottle lock cap from below, the cushion valve is supported on the bottom surface of the annular baffle, and the ventilation hole is provided below the annular baffle.

[0015] In the above-mentioned anti-blocking ventilation structure external spring lotion pump, the locking cover is provided with an upwardly protruding annular opening, and the outer side of the main column is provided with a convex ring that seals with the annular opening after being bounced up.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. The present invention has a cushion valve sleeved on the pump chamber, and the cushion valve is provided with an elastic and soft sleeve, and the soft sleeve is sleeved on the outer side of the pump chamber and covers the ventilation hole on the inner side so that the material liquid cannot enter the ventilation hole from the outside of the pump chamber. The soft sleeve is combined with the pump chamber to form a one-way valve structure at the ventilation hole that only allows gas to flow out of the pump chamber to the outside of the pump chamber, which can prevent the material from entering the pump chamber from the ventilation hole to block the channel. Especially when it is applied to a material with a high viscosity, the gas can enter the bottle through the one-way valve structure to prevent the bottle from being deflated due to the lack of material and the inability to replenish the gas in the bottle in time during use.

[0018] 2. The soft sleeve is a conical sleeve with a larger upper part and a smaller lower part, which is arranged on the bottom of the cushion valve. The lower end of the conical sleeve is sealingly connected to the outer side of the pump chamber below the ventilation hole, and the middle and upper part of the conical sleeve has a certain gap with the pump chamber to allow the gas to flow from the ventilation hole to the outer side of the conical sleeve first, so as to more easily open the lower end of the conical sleeve by air pressure. The ventilation holes are provided with multiple ones along the axial direction of the pump chamber, and a supporting protrusion convex outward is provided on the side of the pump chamber and between two adjacent ventilation holes to prevent the soft sleeve from sticking to the pump chamber when deformed, thereby ensuring the stability of the air intake performance.

[0019] 3. The gasket valve is made of relatively soft material, which can form a good seal with the bottle mouth. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0021] Figure 1 It is a cross-sectional view of an anti-blocking ventilation structure external spring lotion pump of the present invention;

[0022] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0023] Figure 3 It is a schematic diagram of the structure of the cushion valve;

[0024] Figure 4 It is a schematic diagram of the structure of the pump chamber. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings:

[0026] like Figures 1 to 4 An anti-blocking ventilation structure external spring lotion pump, comprising a pump chamber 5, a bottle lock cap 8 is provided at the upper end of the pump chamber 5, a pumping assembly for pumping out lotion is provided in the pump chamber 5, a cushion valve 10 is sleeved on the pump chamber 5, the cushion valve 10 is located inside the bottle lock cap 8 and is used to cooperate with the bottle lock cap 8 to seal and lock on the bottle mouth of the container, a ventilation hole 50 is opened on the side of the pump chamber 5, and a flexible and soft cover 101 is provided on the cushion valve 10. Preferably, the cushion valve 10 The soft sleeve 101 is integrally formed with the soft sleeve 101, and the soft sleeve 101 is sleeved on the outer side of the pump chamber 5 and covers the ventilation hole 50 on the inner side so that the material liquid cannot enter the ventilation hole 50 from the outside of the pump chamber 5. The soft sleeve 101 is combined with the pump chamber 5, and a one-way valve structure is formed at the ventilation hole 50, which only allows the fluid to flow out of the pump chamber 5 from the pump chamber 5 to the outside of the pump chamber 5. When the container bottle is replenished with gas, under the condition of the internal and external air pressure difference, the gas enters the pump chamber 5 from the outside, and after passing through the ventilation hole 50, it breaks through the soft sleeve 101 and enters the container bottle.

[0027] Preferably, the soft sleeve 101 is a conical sleeve with an inner hole that is larger at the top and smaller at the bottom and is arranged on the bottom of the cushion valve 10. The lower end of the conical sleeve is sealed and connected to the outer side of the pump chamber 5 below the ventilation hole 50, and the upper and middle parts of the conical sleeve have a certain gap with the pump chamber 5 to allow the gas to flow from the ventilation hole 50 to the outside of the conical sleeve first, so that the lower end of the conical sleeve can be more easily opened by air pressure.

[0028] like Figure 4 In the illustrated embodiment, a plurality of ventilation holes 50 are provided along the axial direction of the pump chamber 5, and an outwardly protruding support protrusion 52 is provided on the side surface of the pump chamber 5 and between two adjacent ventilation holes 50 to prevent the soft cover 101 from sticking to the pump chamber 5 when deformed, thereby avoiding affecting the air intake performance.

[0029] The lower end of the soft sleeve 101 has an inwardly contracted opening, which can improve the sealing performance and reduce the upper and lower heights of the sealing sections of the soft sleeve 101 and the pump chamber 5, so as to facilitate breaking the seal and replenishing air.

[0030] The wall thickness of the soft sleeve 101 gradually becomes thinner from top to bottom, and a circle of reinforcing ribs 102 is provided on the outer side near the middle and lower part to facilitate the gas to better break through the lower end of the soft sleeve 101 for gas replenishment.

[0031] like Figure 4 In the illustrated embodiment, buckle lines 53 protruding outward are provided at circumferential intervals on the outer side of the pump chamber 5, and the buckle lines 53 are blocked below the soft cover 101 to prevent the cushion valve 10 and the soft cover 101 from loosening when vibrated when not in use.

[0032] like Figure 1 In the embodiment shown, the pumping assembly includes a push head 1, a main column 2, a sub-column 3, a piston 4, a spring 6, a one-way valve 7 and a lock cover 9. The main column 2 is arranged in a pump chamber 5. The one-way valve 7 is a ball. The push head 1 is plugged and fixed on the upper end of the main column 2. The sub-column 3 is connected to the lower end of the main column 2. The piston 4 is sleeved on the outside of the main column 2 and the sub-column 3. The one-way valve is arranged in the pump chamber 5 and is located below the piston 4 to feed liquid into the pump chamber 5. The upper end of the lock cover 9 is connected to the upper end of the pump chamber 5. The lock cover 9 is connected and fixed and is provided with a spring cavity 91 inserted into the pump chamber 5. The bottom of the spring cavity 91 is provided with a center hole 92 for the main column 2 to pass through. The sub-column 3 and the piston 4 are located below the spring cavity 91. The spring 6 is located in the spring cavity 91 and is used to press the main column 2 upward. An air intake gap is respectively provided between the main column 2 and the lock cover 9 and between the main column 2 and the center hole 92. The lock cover 9 restricts the piston 4 below the air exchange hole 50. The spring is externally arranged and has a simple structure.

[0033] The upper part of the pump chamber 5 is provided with an annular baffle 51 which can block the top plate of the bottle lock cover 8 from below, the cushion valve 10 is supported on the bottom surface of the annular baffle 51, and the ventilation hole 50 is provided below the annular baffle 51, with a simple structure.

[0034] An outer sleeve 21 located in the spring cavity 91 is provided on the outer side of the main column 2 , and the spring 6 is arranged on the inner side of the outer sleeve 21 .

[0035] The lock cover 9 is provided with an annular opening 93 protruding upward, and the outer side of the main column 2 is provided with a convex ring 22 which seals with the annular opening 93 after being popped up, so as to achieve a good waterproof effect.

[0036] The lower part of the spring cavity 91 is provided with an internal thread 94, and the lower part of the outer sleeve 21 is provided with an external thread 23 that can be threadedly connected with the internal thread 94. When pressed down, the internal thread 94 and the external thread 23 are connected to lock the main column.

Claims

1. An anti-blocking ventilation structure external spring lotion pump, characterized in that: The invention comprises a pump chamber (5), wherein a bottle lock cap (8) is provided at the upper end of the pump chamber (5), wherein a pumping assembly for pumping out the lotion is provided in the pump chamber (5), wherein a cushion valve (10) is sleeved on the pump chamber (5), wherein the cushion valve (10) is located on the inner side of the bottle lock cap (8) and is used to cooperate with the bottle lock cap (8) to be sealed and locked on the mouth of the container bottle, wherein a ventilation hole (50) is provided on the side of the pump chamber (5), wherein an elastic and soft soft cover (101) is provided on the cushion valve (10), wherein the soft cover (101) The soft sleeve (101) is sleeved on the outer side of the pump chamber (5) and covers the ventilation hole (50) on the inner side so that the feed liquid cannot enter the ventilation hole (50) from the outside of the pump chamber (5). The soft sleeve (101) is a conical sleeve with a larger inner hole at the top and smaller inner hole at the bottom, which is arranged on the bottom of the cushion valve (10). The lower end of the conical sleeve is sealed and connected to the outer side of the pump chamber (5) below the ventilation hole (50). There is a gap between the middle and upper part of the conical sleeve and the pump chamber (5) to allow gas to flow from the ventilation hole (50) into the outer side of the conical sleeve first, so as to open the lower end of the conical sleeve by air pressure.

2. The anti-blocking ventilation structure external spring lotion pump according to claim 1, characterized in that: A plurality of ventilation holes (50) are provided along the axial direction of the pump chamber (5), and an outwardly protruding support protrusion (52) is provided on the side surface of the pump chamber (5) and between two adjacent ventilation holes (50).

3. The anti-blocking ventilation structure external spring lotion pump according to claim 1, characterized in that: The lower end of the soft cover (101) has an inwardly contracted opening.

4. The anti-blocking ventilation structure external spring lotion pump according to claim 1, characterized in that: The wall thickness of the soft sleeve (101) gradually becomes thinner from top to bottom, and a circle of reinforcing ribs (102) is provided on the outer side near the middle and lower part.

5. The anti-blocking ventilation structure external spring lotion pump according to claim 1, characterized in that: The cushion valve (10) and the soft sleeve (101) are integrally formed.

6. The anti-blocking ventilation structure external spring lotion pump according to claim 1, characterized in that: Buckle lines (53) protruding outward are provided at circumferential intervals on the outer side of the pump chamber (5), and the buckle lines (53) are blocked below the soft sleeve (101).

7. An anti-blocking ventilation structure external spring lotion pump according to any one of claims 1 to 6, characterized in that: The pumping assembly comprises a push head (1), a main column (2), a secondary column (3), a piston (4), a spring (6), a one-way valve (7) and a lock cover (9); the main column (2) is arranged in a pump chamber (5); the push head (1) is plugged and fixed to the upper end of the main column (2); the secondary column (3) is connected to the lower end of the main column (2); the piston (4) is sleeved on the outside of the main column (2) and the secondary column (3); the one-way valve is arranged in the pump chamber (5) and is located below the piston (4) so ​​that the feed liquid enters the pump chamber (5); the upper end of the lock cover (9) is connected to the upper end of the pump chamber (5); The locking cover (9) is fixedly connected and provided with a spring chamber (91) inserted into the pump chamber (5); the bottom of the spring chamber (91) is provided with a central hole (92) for the main column (2) to pass through; the secondary column (3) and the piston (4) are located below the spring chamber (91); the spring (6) is located in the spring chamber (91) and is used to press the main column (2) upward; an air intake gap is provided between the main column (2) and the locking cover (9) and between the main column (2) and the central hole (92); the locking cover (9) restricts the piston (4) below the air exchange hole (50).

8. The anti-blocking ventilation structure external spring lotion pump according to claim 7, characterized in that: An annular baffle (51) is provided at the upper portion of the pump chamber (5) so as to block the top plate of the bottle lock cover (8) from below, the cushion valve (10) is supported on the bottom surface of the annular baffle (51), and the ventilation hole (50) is provided below the annular baffle (51).

9. The anti-blocking ventilation structure external spring lotion pump according to claim 7, characterized in that: The lock cover (9) is provided with an upwardly protruding annular opening (93), and the outer side of the main column (2) is provided with a convex ring (22) which seals with the annular opening (93) after being ejected.

Images