Distributor with spiral lock

Abstract

The invention discloses a distributor with a spiral lock. The distributor comprises a pump body, a valve rod, a spiral sleeve and a spring. The lower portion of the valve rod is sleeved with the spiral sleeve, and the spiral sleeve and the valve rod are fixed in the circumferential direction. The valve rod is sleeved with the spring, the upper plane of the spring abuts against the duckbill, and the lower plane of the spring abuts against the spiral sleeve. A spiral groove is formed in the pump body, and a transverse groove is formed adjacent to the top of the spiral groove. A spiral protrusion is arranged on the side wall of the spiral sleeve. When the spiral protrusion is located in the transverse groove, the distributor with the spiral lock is in an opened state. When the spiral protrusion is located at the bottom of the spiral groove, the distributor with the spiral lock is in a closed state. According to the distributor with the spiral lock, the user experience of consumers is improved, and the service life of the distributor is also prolonged. According to the distributor with the spiral lock, the product height is reduced, and the production cost is reduced; and the outer diameter of the pump body is reduced, so that the adaptability and the applicability of the spiral lock distributor are wider.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging containers, in particular to a dispenser with a spiral lock. Background Art

[0002] The dispenser is a liquid dispenser that uses the principle of atmospheric balance to pump out the liquid in the bottle by pressing it and replenish the outside atmosphere into the bottle. Dispensers are widely used in daily chemical and pharmaceutical industries.

[0003] Springs are essential parts of dispensers. The springs in traditional dispensers are generally made of metal. Based on environmental protection factors such as reducing pollution, facilitating recycling, and saving resources, more and more manufacturers use polymer materials (plastics) to make springs. For example, the Chinese invention patent application with publication number CN117884277A uses a spring made of plastic. The invention patent application discloses a spiral-locked lotion pump (lotion pump is a common dispenser in the field of daily chemicals). In the process of opening and closing the lotion pump, the spring is subjected to a strong pressure. Since the plastic spring has a weaker recovery ability than the metal spring, multiple strong pressures may make it difficult for the plastic spring to return to its original state even in a free state. In addition to other factors, the spring of this spiral-locked lotion pump has a virtual position and moves up and down when it is initially opened and not completely closed, which causes the duckbill to be unable to produce the effect of pumping out liquid within a certain downward stroke. The duckbill must be manually rotated to move the duckbill downward, and then the joint between the valve needle and the pump body is sealed before it can be used, which affects the consumer experience and reduces the service life of the product. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a dispenser with a spiral lock, which avoids the virtual position of the spring from moving up and down, improves the consumer's usage experience, and prolongs the service life of the product.

[0005] In order to achieve the above-mentioned invention object, the present invention adopts the following technical solutions: A dispenser with a spiral lock comprises a pump body, a valve stem, a spiral sleeve and a spring. The spiral sleeve is sleeved on the lower part of the valve stem, and the spiral sleeve and the valve stem are fixed in the circumferential direction. The spring is sleeved outside the valve stem, and the two ends of the spring are respectively against the duckbill and the spiral groove. A spiral groove is arranged in the pump body, and the adjacent part of the top of the spiral groove is a transverse groove; the side wall of the spiral sleeve is provided with a spiral protrusion. When the spiral protrusion is located in the transverse groove, the dispenser with a spiral lock is in an open state; when the spiral protrusion is located at the bottom of the spiral groove, the dispenser with a spiral lock is in a closed state.

[0006] Furthermore, in order to ensure that the dispenser can be used stably when in an open state, a groove is provided in the transverse groove to prevent the spiral protrusion from moving in the transverse groove.

[0007] Furthermore, in order to make the relative sliding between the spiral sleeve and the pump body more stable, there are two spiral protrusions and two spiral grooves.

[0008] Furthermore, the two spiral protrusions are symmetrically arranged.

[0009] Furthermore, a first limiting rib of the valve stem is provided on the side wall of the valve stem, a limiting notch is provided in the spiral sleeve, and the first limiting rib of the valve stem cooperates with the limiting notch to prevent the spiral sleeve and the valve stem from rotating relative to each other.

[0010] Furthermore, the dispenser with a spiral lock also includes a connecting seat, which is installed at the opening of the pump body, and the lower part of the duckbill is inserted into the connecting seat.

[0011] Furthermore, the distributor with a spiral lock also includes a piston and a valve needle, wherein the piston is installed at the bottom of the valve stem, and the valve needle passes through the piston and is inserted into the valve stem.

[0012] Furthermore, the dispenser with a spiral lock also includes a one-way valve, and the one-way valve is located at the liquid inlet at the bottom of the pump body.

[0013] Furthermore, the one-way valve may be a spring sleeve or a ball valve.

[0014] Furthermore, the dispenser with a spiral lock also includes a large ring, which is installed at the opening of the pump body. The large ring is used to install the dispenser with a spiral lock of the present invention on the bottle body.

[0015] The present invention discloses a dispenser with a spiral lock. During the opening and closing process, the spring, duckbill and valve stem move up and down together. The spring is always under stable force, which prevents the spring from moving up and down during the closing process and the just-opened state of the dispenser. The dispenser can be used in the open state, which improves the user experience of consumers and prolongs the service life of the product. The dispenser with a spiral lock of the present invention shortens the product height and reduces the production cost; the outer diameter of the pump body is reduced, so that the spiral lock dispenser can adapt to bottles with smaller inner diameters of the bottle mouth, and has wider adaptability and applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a cross-sectional view of a dispenser with a spiral lock according to the present invention; Figure 2 It is a schematic diagram of the pump structure of the present invention; Figure 3 It is a three-dimensional diagram of the structure of the pump body of the present invention; Figure 4 is a first angle stereogram of the spiral sleeve of the present invention; Figure 5 is a second angle stereogram of the spiral sleeve of the present invention; Figure 6 is a three-dimensional diagram of the valve stem of the present invention; Figure 7 is a cross-sectional view of a valve stem of the present invention; Figure 8 It is a three-dimensional diagram of a spring of the present invention; Fig. 9 is a sectional view of a piston of the present invention; Fig.10 is a front view of the valve needle of the present invention; Fig.11 is a cross-sectional view of a duckbill of the present invention; Fig.12 is a cross-sectional view of the connection seat of the present invention; Fig.13 It is a three-dimensional diagram of the bullet sleeve of the present invention; Fig.14 It is a schematic diagram of the dispenser with a spiral lock of the present invention in an open state; Fig.15 It is a schematic diagram of the closed state of the dispenser with a spiral lock of the present invention.

[0017] In the figure, the serial numbers of each component are: 1. Straw, 2. Head cap, 3. Spring sleeve, 4. Valve needle, 5. Piston, 6. Valve stem, 7. Spiral sleeve, 8. Spring, 9. Large circle, 10. Connecting seat, 11. Gasket, 12. Duckbill. DETAILED DESCRIPTION

[0018] In the following, a dispenser with a spiral lock proposed by the present invention is described in detail in conjunction with the accompanying drawings. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "left side", "right side", "upper part", "lower part", "bottom" and the like is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and "first", "second" and the like do not indicate the importance of the parts, and therefore cannot be understood as a limitation on the present invention. The specific dimensions and values ​​used in this embodiment are only for illustrating the technical solution, and do not limit the scope of protection of the present invention.

[0019] like Figure 1 As shown, the present invention discloses a dispenser with a spiral lock, comprising a pump body 2, a valve stem 6, a spiral sleeve 7 and a spring 8. Figure 4As shown, the spiral sleeve 7 includes a spiral sleeve through hole 71, and the spiral sleeve 7 is sleeved on the lower part of the valve stem 6 through the spiral sleeve through hole 71. The spiral sleeve 7 and the valve stem 6 are fixed in the circumferential direction, that is, the spiral sleeve 7 and the valve stem 6 cannot rotate relative to each other around the longitudinal center axis of the valve stem 6. The spring 8 is sleeved outside the valve stem 6, and the two ends of the spring 8 are respectively against the duckbill and the spiral sleeve. Figure 2 and 3 As shown, the inner wall of the pump body 2 is provided with a spiral groove 22, and the adjacent portion of the top of the spiral groove 22 is a transverse groove; Figure 4 As shown, the side wall of the spiral sleeve 7 is provided with a spiral protrusion 73. When the spiral protrusion 73 is located in the transverse groove, the dispenser with a spiral lock of this embodiment is in an open state, that is, the duckbill can be pressed down to pump out the stored liquid; when the spiral protrusion 73 is located at the bottom of the spiral groove 22, the dispenser with a spiral lock of this embodiment is in a closed state, that is, the duckbill cannot be pressed down. When the duckbill is rotated to the bottom, the duckbill 122 and the connecting seat 102 have an interference seal fit (friction fit), and a certain force is required to open it, and there is a certain hand feeling (a certain friction force) at the moment of opening.

[0020] like Figure 2 and 3 As shown, in order to ensure the stable use of the dispenser in the open state, a groove 24 is provided in the transverse groove, and the spiral protrusion 73 is located in the groove 24 to prevent the spiral protrusion from moving. In order to make the relative sliding of the spiral sleeve 7 and the pump body 2 more stable, there are two spiral protrusions 73 and they are symmetrically arranged, and there are also two spiral grooves 22.

[0021] like Figure 6 As shown, the side wall of the valve stem 6 is provided with a first valve stem limiting rib 64; Figure 4 As shown, a limiting notch 72 is provided in the spiral sleeve 7 , and the first limiting rib 64 of the valve stem cooperates with the limiting notch 72 to prevent the spiral sleeve 7 and the valve stem 6 from rotating relative to each other.

[0022] like Figure 1 As shown, the dispenser with spiral lock of this embodiment also includes a gasket 11, a connecting seat 10, a large circle 9, a piston 5, a valve needle 4, a one-way valve, and a straw 1. The large circle 9 is installed at the opening of the pump body 2, and the large circle 9 is used to install the dispenser with spiral lock of the present invention on the bottle body; the gasket 11 is installed in the large circle 9. The connecting seat 10 is installed in the opening of the pump body 2, and the lower part of the duckbill 12 is inserted into the connecting seat 10. The piston 5 is installed at the bottom of the valve stem 6, and the valve needle 4 passes through the piston 5 and is inserted into the valve stem 6. The one-way valve is located at the bottom liquid inlet of the pump body 2, and the straw 1 is plugged into the bottom liquid inlet of the pump body 2. The one-way valve can be a spring sleeve or a ball valve, and the spring sleeve 3 is selected in this embodiment.

[0023] In order to improve the technical solution of the dispenser with spiral lock of this embodiment, the details of the technical solution are as follows: like Figure 8As shown, the spring 8 includes a spring through hole 81, a spring upper bottom surface 82 and a spring lower bottom surface 83. The valve stem 6 is inserted into the spring through hole 81, and the spring upper bottom surface 82 abuts against the lower part of the duckbill 12. Figure 4 As shown, the spiral sleeve 7 includes a spiral sleeve plane 75, and the spring bottom surface 83 is against the spiral sleeve plane 75. The spring 8 can be made of metal, polymer material, etc.

[0024] like Fig. 9 As shown, the piston 5 includes a piston inner ring 51, a piston inner ring bottom surface 52 and a piston outer ring top surface 53. Figure 7 As shown, the valve stem 6 includes a valve stem side wall 61 at the bottom, a valve stem first buckle recess rib 62 and a valve stem second limit rib 63. The piston inner ring 51 cooperates with the valve stem side wall 61 to seal. Fig.10 As shown, the valve needle 4 includes a valve needle buckling convex rib 41, a valve needle top 42 and a valve needle inclined surface 43 at the bottom of the valve needle. The valve needle buckling convex rib 41 and the valve stem first buckling concave rib 62 are tightly buckled, the valve needle top 42 is limited by the valve stem second limiting rib 63, and the piston inner ring bottom surface 52 and the valve needle inclined surface 43 are sealed against each other. Figure 5 As shown, the spiral sleeve includes a spiral sleeve bottom 74. When the distributor is in a static state, the spiral sleeve bottom 74 abuts against the top surface 53 of the piston outer ring.

[0025] like Fig.11 As shown, the duckbill 12 includes a duckbill rib 121 and a duckbill protruding surface 122. Fig.12 As shown, the connection seat includes a connection seat rib 101 and a connection seat sealing surface 102. Figure 2 As shown, the pump body 2 includes a pump body buckle rib 23. Figure 7 As shown, the valve stem 6 includes a second valve stem buckle rib 65. The connection seat rib 101 cooperates with the pump body buckle rib 23. The duckbill rib 121 cooperates with the valve stem second buckle rib 65. During the closing process of the dispenser, the duckbill protrusion 122 and the connection seat sealing surface 102 are sealed and matched.

[0026] like Fig.13 As shown, the shell 3 includes a shell side wall 31; Figure 2 As shown, the bottom of the pump body 2 is provided with a first limiting rib 21 of the elastic sleeve. The side wall 31 of the elastic sleeve is locked and sealed with the first limiting rib 21 of the pump body, and plays a role in fixing the elastic sleeve 3.

[0027] A kind of closing and opening process of the distributor with spiral lock of the present embodiment is as follows: 1. Closing process: Fig.14As shown in the figure, the distributor is in the open state, and the spiral protrusion 73 of the spiral sleeve 7 is located in the groove 24. The duckbill 12 is turned to rotate rightward, and the duckbill 12 drives the valve stem 6 to rotate, and then drives the spiral sleeve 7 to rotate. The spiral protrusion 73 disengages from the groove 24 and enters the spiral groove 22. In this process, the bottom of the valve needle 4 is gradually sealed with the inside of the pump body 2, and the duckbill protrusion surface 122 and the connection seat sealing surface 102 are gradually sealed. When the spiral protrusion 73 reaches the bottom of the spiral groove 22, as shown in FIG. Fig.15 As shown, the entire liquid cavity at the lower part of the pump body 2 forms a closed state, the duckbill 12 cannot be pressed, and the liquid in the pump body 2 cannot be pumped out, and the dispenser is in a closed state. During the entire closing process, the force and shape of the spring 8 remain substantially unchanged.

[0028] In this embodiment, the duckbill 12 is moved to rotate clockwise as an example, and the duckbill 12 can also be moved to rotate counterclockwise, that is, the direction of the spiral groove is the same as that in the appendix of the manual. Figure 2 The direction of the middle spiral groove 22 is opposite.

[0029] 2. Opening process: Fig.15 As shown, the dispenser is in a closed state, and the spiral protrusion 73 is located at the bottom of the spiral groove 22. The duckbill 12 is rotated to the left (in the opposite direction of the closing process), and the spiral protrusion 73 slides upward along the spiral groove 22. When the spiral protrusion 73 slides to the outlet of the spiral groove 22, the duckbill 12 is continued to be rotated, and the spiral protrusion 73 is buckled into the groove 24. At this time, the dispenser is in an open state, and the duckbill 12 can be pressed to pump out the liquid.

[0030] Based on the description of the preferred embodiments of the present invention, it should be clear that the present invention defined by the attached claims is not limited to the specific details set forth in the above description, and many obvious changes to the present invention that do not depart from the spirit or scope of the present invention may also achieve the purpose of the present invention.

Claims

1. A dispenser with a spiral lock, comprising a pump body, a valve stem and a spring; characterized in that: It also includes a spiral sleeve; the spiral sleeve is sleeved on the lower part of the valve stem, and the spiral sleeve and the valve stem are kept fixed in the circumferential direction; the spring is sleeved outside the valve stem, and the two ends of the spring are respectively against the duckbill and the spiral sleeve; a spiral groove is arranged in the pump body, and the adjacent part of the top of the spiral groove is a transverse groove; the side wall of the spiral sleeve is provided with a spiral protrusion; when the spiral protrusion is located in the transverse groove, the dispenser with a spiral lock is in an open state; when the spiral protrusion is located at the bottom of the spiral groove, the dispenser with a spiral lock is in a closed state.

2. The dispenser with a spiral lock according to claim 1, characterized in that A groove is arranged in the transverse groove.

3. The dispenser with a spiral lock according to claim 1, characterized in that There are two spiral protrusions and two spiral grooves.

4. The dispenser with a spiral lock according to claim 3, characterized in that The two spiral protrusions are symmetrically arranged.

5. The dispenser with a spiral lock according to claim 1, characterized in that: The valve stem side wall is provided with a first limiting rib of the valve stem, a limiting notch is provided in the spiral sleeve, and the first limiting rib of the valve stem cooperates with the limiting notch.

6. The dispenser with a screw lock according to claim 1, characterized in that: The dispenser with a spiral lock also includes a connecting seat, which is installed at the opening of the pump body, and the lower part of the duckbill is inserted into the connecting seat.

7. The dispenser with a screw lock according to claim 1, characterized in that: The distributor with a spiral lock further comprises a piston and a valve needle, wherein the piston is mounted at the bottom of the valve stem, and the valve needle passes through the piston and is inserted into the valve stem.

8. The dispenser with a screw lock according to claim 1, characterized in that: The dispenser with a spiral lock further comprises a one-way valve, which is located at the liquid inlet at the bottom of the pump body.

9. The dispenser with a screw lock according to claim 8, characterized in that The one-way valve is a spring sleeve or a ball valve.

10. The dispenser with a twist lock according to claim 1, characterized in that: The dispenser with a spiral lock further comprises a large ring, which is mounted at the opening of the pump body.

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