Distributor with spiral lock

Abstract

The utility model 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 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] This utility model belongs to the field of packaging container technology, specifically a dispenser with a screw lock. Background Technology

[0002] A dispenser is a device that utilizes the principle of atmospheric balance. By pressing, it pumps the liquid out of the bottle and replenishes the liquid with outside air. Dispensers are widely used in industries such as daily chemicals and pharmaceuticals.

[0003] Springs are essential components of dispensers. Traditionally, springs in dispensers are typically made of metal. However, due to environmental considerations such as reducing pollution, facilitating recycling, and conserving resources, more and more manufacturers are using polymer materials (plastics) to make springs. For example, Chinese utility model patent application CN117884277A uses a plastic spring. This patent application discloses a spiral-locked emulsion pump (emulsion pumps are a common dispenser in the daily chemical industry). During the opening and closing of the emulsion pump, the spring is subjected to strong pressure. Because plastic springs have weaker restoring ability than metal springs, repeated strong pressure may cause the plastic spring to fail to return to its original shape even in a free state. Combined with other factors, this causes the spring in this spiral-locked emulsion pump to exhibit play-up and down movement when initially opened and not fully closed, resulting in the spout failing to pump liquid within a certain downward stroke. The spout must be manually rotated to move downwards and seal the valve needle and pump body before it can be used, affecting the user experience and reducing the product's lifespan. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a distributor with a spiral lock, which avoids the spring from moving up and down, improves the user experience, and extends the service life of the product.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0006] A distributor with a helical lock includes a pump body, a valve stem, a helical sleeve, and a spring. The helical sleeve is fitted onto the lower part of the valve stem and is circumferentially fixed to the valve stem. The spring is fitted onto the valve stem, with its two ends abutting against a duckbill and a helical groove, respectively. The pump body has a helical groove, with a transverse groove adjacent to the top of the helical groove; the sidewall of the helical sleeve has a helical protrusion. When the helical protrusion is located in the transverse groove, the distributor with the helical lock is in the open state; when the helical protrusion is located at the bottom of the helical groove, the distributor with the helical lock is in the closed state.

[0007] Furthermore, in order to ensure stable use of the dispenser when it is in the open state, a groove is provided in the transverse slot to prevent the spiral protrusion from moving in the transverse slot.

[0008] Furthermore, to ensure more stable relative sliding between the spiral sleeve and the pump body, there are two spiral protrusions and two spiral grooves.

[0009] Furthermore, the two spiral protrusions are arranged symmetrically.

[0010] Furthermore, a first limiting rib is provided on the side wall of the valve stem, and a limiting notch is provided inside the spiral sleeve. The first limiting rib of the valve stem cooperates with the limiting notch to prevent the spiral sleeve from rotating relative to the valve stem.

[0011] Furthermore, the distributor 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.

[0012] Furthermore, the dispenser with a helical lock also includes a piston and a valve needle, the piston being mounted at the bottom of the valve stem, and the valve needle passing through the piston and inserted into the valve stem.

[0013] Furthermore, the distributor with a helical lock also includes a one-way valve located at the liquid inlet at the bottom of the pump body.

[0014] Furthermore, the one-way valve can be a spring sleeve or a ball valve.

[0015] Furthermore, the dispenser with a spiral lock also includes a large ring, which is installed at the opening of the pump body and is used to install the dispenser with a spiral lock of this invention onto the bottle body.

[0016] This utility model discloses a distributor with a spiral lock. During opening and closing, the spring, duckbill, and valve stem move up and down together, ensuring the spring remains consistently under stable force. This prevents the spring from shifting during the closing process and immediately after opening, allowing the distributor to be used immediately upon opening. This improves the user experience and extends the product's lifespan. Furthermore, this spiral lock distributor reduces the product height, lowering production costs; it also reduces the pump body diameter, enabling the spiral lock distributor to accommodate bottles with smaller inner diameters, thus broadening its adaptability and applicability. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the dispenser with a spiral lock according to this utility model;

[0018] Figure 2 This is a schematic diagram of the pump body structure of this utility model;

[0019] Figure 3 This is a three-dimensional structural view of the pump body part of this utility model;

[0020] Figure 4 This is a first-angle perspective view of the spiral sleeve of this utility model;

[0021] Figure 5 This is a second-angle perspective view of the spiral sleeve of this utility model;

[0022] Figure 6 This is a perspective view of the valve stem of this utility model;

[0023] Figure 7 This is a sectional view of the valve stem of this utility model;

[0024] Figure 8 This is a three-dimensional view of the spring of this utility model;

[0025] Figure 9 This is a cross-sectional view of the piston of this utility model;

[0026] Figure 10 This is a front view of the valve needle of this utility model;

[0027] Figure 11 This is a cross-sectional view of the duckbill of this utility model;

[0028] Figure 12 This is a sectional view of the connector of this utility model;

[0029] Figure 13 This is a perspective view of the spring sleeve of this utility model;

[0030] Figure 14 This is a schematic diagram of the distributor with a spiral lock of this utility model in the open state;

[0031] Figure 15 This is a schematic diagram of the distributor with a spiral lock in the closed state according to this utility model.

[0032] In the diagram, the component numbers are as follows: 1. Straw, 2. Cap, 3. Spring sleeve, 4. Valve needle, 5. Piston, 6. Valve stem, 7. Spiral sleeve, 8. Spring, 9. Large ring, 10. Connecting seat, 11. Gasket, 12. Duckbill. Detailed Implementation

[0033] The following detailed description, in conjunction with the accompanying drawings, provides a detailed description of a distributor with a spiral lock according to this utility model. In the description of this utility model, it should be understood that the terms "left side," "right side," "upper part," "lower part," "bottom," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Terms such as "first" and "second" do not indicate the importance of components and therefore should not be construed as limitations on this utility model. 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 this utility model.

[0034] like Figure 1 As shown, this utility model discloses a distributor with a spiral lock, comprising a pump body 2, a valve stem 6, a spiral sleeve 7, and a spring 8. Figure 4 As shown, the spiral sleeve 7 includes a spiral sleeve through hole 71. The spiral sleeve 7 is fitted onto 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 circumferentially, meaning that the spiral sleeve 7 and the valve stem 6 cannot rotate relative to each other around the longitudinal central axis of the valve stem 6. The spring 8 is fitted onto the outside of the valve stem 6, and its two ends abut against the duckbill and the spiral sleeve, respectively. Figure 2 and 3 As shown, the inner wall of the pump body 2 is provided with a spiral groove 22, and the top of the spiral groove 22 is adjacent to a transverse groove; as 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 distributor with spiral lock in this embodiment is in the 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 distributor with spiral lock in this embodiment is in the closed state, that is, the duckbill cannot be pressed down. When the duckbill is screwed to the bottom, the duckbill 122 and the connecting seat 102 are in an interference seal (friction fit), and opening requires a certain force, and there is a certain tactile feeling (a certain friction) at the moment of opening.

[0035] like Figure 2 and 3 As shown, to ensure stable operation of the distributor when it is in the open state, a groove 24 is provided in the transverse slot, and the spiral protrusion 73 is located in the groove 24 to prevent the spiral protrusion from moving. To make the relative sliding between the spiral sleeve 7 and the pump body 2 more stable, there are two spiral protrusions 73, which are symmetrically arranged, and there are also two spiral grooves 22.

[0036] like Figure 6 As shown, a first limiting rib 64 for the valve stem 6 is provided on the side wall; as Figure 4 As shown, a limiting notch 72 is provided inside 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.

[0037] like Figure 1 As shown, the dispenser with a spiral lock in this embodiment also includes a gasket 11, a connecting seat 10, a large ring 9, a piston 5, a valve needle 4, a one-way valve, and a suction tube 1. The large ring 9 is installed at the opening of the pump body 2 and is used to install the dispenser with a spiral lock onto the bottle body; the gasket 11 is installed inside the large ring 9. The connecting seat 10 is installed inside 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 liquid inlet at the bottom of the pump body 2, and the suction tube 1 is inserted into the liquid inlet at the bottom of the pump body 2. The one-way valve can be a spring sleeve or a ball valve; in this embodiment, a spring sleeve 3 is used.

[0038] To further improve the distributor technology solution with screw lock in this embodiment, the technical details are as follows:

[0039] like Figure 8 As 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 through 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 lower bottom surface 83 of the spring abuts against the spiral sleeve plane 75. The spring 8 can be made of metal, polymer materials, etc.

[0040] like Figure 9 As shown, piston 5 includes an inner piston ring 51, a bottom surface 52 of the inner piston ring, and a top surface 53 of the outer piston ring. Figure 7 As shown, the valve stem 6 includes a bottom valve stem sidewall 61, a first valve stem locking rib 62, and a second valve stem limiting rib 63. The piston inner ring 51 mates with the valve stem sidewall 61 for sealing. Figure 10 As shown, the valve needle 4 includes a valve needle engagement rib 41, a valve needle top 42, and a valve needle bevel 43 at the bottom. The valve needle engagement rib 41 and the first engagement recess rib 62 of the valve stem are tightly engaged. The valve needle top 42 is limited by the second limiting rib 63 of the valve stem. The bottom surface 52 of the piston inner ring and the valve needle bevel 43 are in contact and sealed. Figure 5 As shown, the spiral sleeve includes a spiral sleeve bottom 74. When the distributor is in a stationary state, the spiral sleeve bottom 74 abuts against the top surface 53 of the piston outer ring.

[0041] like Figure 11 As shown, the duckbill 12 includes a duckbill rib area 121 and a duckbill protruding surface 122. Figure 12 As shown, the connecting seat includes a connecting seat rib 101 and a connecting seat sealing surface 102. Figure 2 As shown, the pump body 2 includes pump body locking ribs 23. (As indicated...) Figure 7As shown, the valve stem 6 includes a second locking rib 65. The connecting seat rib 101 and the pump body locking rib 23 cooperate. The duckbill rib 121 and the second locking rib 65 of the valve stem cooperate to engage. During the distributor closing process, the duckbill protrusion 122 and the connecting seat sealing surface 102 are sealed together.

[0042] like Figure 13 As shown, the cartridge case 3 includes a cartridge case sidewall 31; as Figure 2 As shown, a first limiting rib 21 for the spring sleeve is provided at the bottom of the pump body 2. The side wall 31 of the spring sleeve is interlocked and sealed with the first limiting rib 21 of the pump body, and serves to fix the spring sleeve 3.

[0043] The closing and opening process of a distributor with a screw lock in this embodiment is as follows:

[0044] 1. Closing process: such as Figure 14 As shown, the distributor is in the open state, and the spiral protrusion 73 of the spiral sleeve 7 is located in the groove 24. Rotating the duckbill 12 to the right causes the valve stem 6 to rotate, which in turn rotates the spiral sleeve 7. The spiral protrusion 73 disengages from the groove 24 and enters the spiral groove 22. During this process, the bottom of the valve needle 4 gradually seals with the inside of the pump body 2, and the duckbill protrusion surface 122 and the connecting seat sealing surface 102 gradually seal and engage. When the spiral protrusion 73 reaches the bottom of the spiral groove 22, as... Figure 15 As shown, the entire liquid chamber at the bottom of the pump body 2 is closed, the duckbill 12 cannot be pressed, and the liquid inside the pump body 2 cannot be pumped out. At this time, the distributor is in the closed state. Throughout the closing process, the force and shape of the spring 8 remain basically unchanged.

[0045] This embodiment uses rotating the duckbill 12 to the right as an example. It can also be set to rotate the duckbill 12 to the left, that is, the direction of the spiral groove is the same as that in the instruction manual. Figure 2 The directions of the central spiral groove 22 are opposite.

[0046] 2. Opening process: such as Figure 15 As shown, the dispenser is in the closed state, with the spiral protrusion 73 located at the bottom of the spiral groove 22. Rotating the duckbill 12 to the left (reverse of the closing process) causes the spiral protrusion 73 to slide upwards along the spiral groove 22. When the spiral protrusion 73 reaches the outlet of the spiral groove 22, continue rotating the duckbill 12, and the spiral protrusion 73 engages with the groove 24. At this point, the dispenser is in the open state, and liquid can be pumped out by pressing the duckbill 12.

[0047] Based on the description of the preferred embodiments of the present invention, it should be clear that the present invention as defined by the appended claims is not limited to the specific details set forth in the above description, and many obvious changes to the present invention without departing from the spirit or scope of the present invention may also achieve the purpose of the present invention.

Claims

1. A distributor with a helical lock, comprising a pump body, a valve stem, and a spring; characterized in that, It also includes a spiral sleeve; the spiral sleeve is fitted onto the lower part of the valve stem, and the spiral sleeve and the valve stem are fixed circumferentially; the spring is fitted onto the outside of the valve stem, and the two ends of the spring abut against the duckbill and the spiral sleeve respectively; a spiral groove is provided in the pump body, and a transverse groove is adjacent to the top of the spiral groove; a spiral protrusion is provided on the side wall of the spiral sleeve; when the spiral protrusion is located in the transverse groove, the distributor with a spiral lock is in the open state; when the spiral protrusion is located at the bottom of the spiral groove, the distributor with a spiral lock is in the closed state.

2. The dispenser with a spiral lock according to claim 1, characterized in that, The transverse groove is provided with a recess.

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 arranged symmetrically.

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

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

7. The dispenser with a spiral lock according to claim 1, characterized in that, The dispenser with a helical lock also includes a piston and a valve needle, the piston being mounted at the bottom of the valve stem and the valve needle passing through the piston and inserted into the valve stem.

8. The dispenser with a spiral lock according to claim 1, characterized in that, The distributor with a helical lock also includes a one-way valve located at the inlet at the bottom of the pump body.

9. The dispenser with a spiral lock according to claim 8, characterized in that, The one-way valve can be either a spring-loaded valve or a ball valve.

10. The dispenser with a spiral lock according to claim 1, characterized in that, The distributor with a helical lock also includes a large ring, which is installed at the opening of the pump body.

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