Pump head with spring not making contact with materials

Abstract

The utility model belongs to the field of wash supplies, particularly relates to a pump head with a spring not in contact with materials, and aims to solve the problems that the performance of the pump head is reduced and the service life of the pump head is shortened due to the fact that the existing spring is in direct contact with the materials and is easy to corrode after being used for a long time. The second shell is located at the top of the first shell, the second shell is communicated with the first shell, the bottom of the first shell is fixedly connected with a bottom plate, an arc-shaped hole is formed in the bottom plate, and a blocking assembly used for blocking the arc-shaped hole is arranged at the top of the bottom plate. Through the design, the spring is located outside the mounting pipe and does not make direct contact with materials, so that the corrosion problem caused by long-time contact between the spring and the materials is avoided, the service life of the pump head is remarkably prolonged, the steel balls are matched with the arc-shaped holes in the bottom plate through the limiting rods, the stability of the steel balls in the vertical moving process is guaranteed, and dislocation is avoided.

Description

Technical Field

[0001] This utility model relates to the field of washing and care products technology, and in particular to a pump head in which the spring does not contact the material. Background Technology

[0002] In daily life and the chemical industry, liquid or semi-liquid products such as hair dyes and shampoos and conditioners usually require the use of pump heads for dispensing.

[0003] Traditional pump head designs often have several drawbacks. For example, the springs are in direct contact with the material, making them susceptible to corrosion after prolonged use, leading to decreased pump head performance and a shortened lifespan. Furthermore, the internal sealing components may become misaligned after repeated use, resulting in poor sealing performance and affecting material handling efficiency. Therefore, designing a pump head that avoids direct contact between the springs and the material while ensuring the stability of the sealing components is crucial. Utility Model Content

[0004] The purpose of this invention is to solve the shortcomings of existing technologies where the spring is in direct contact with the material, making it susceptible to corrosion after prolonged use, which leads to a decline in pump head performance and a shortened service life. The invention proposes a pump head in which the spring does not contact the material.

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

[0006] A pump head in which the spring does not contact the material includes a second housing and a first housing. The second housing is located on top of the first housing and is connected to the first housing. A base plate is fixedly connected to the bottom of the first housing. An arc-shaped hole is opened inside the base plate. A sealing component for sealing the arc-shaped hole is provided on the top of the base plate.

[0007] The first housing has a sliding inner cylinder that slides through it, and the outer wall of the sliding inner cylinder is provided with a reset component for resetting.

[0008] The top of the sliding inner cylinder is provided with a discharge assembly for discharging material.

[0009] In one possible design, the sealing assembly includes a limiting cover fixedly connected to the top of the base plate. The outer wall of the limiting cover has multiple rectangular holes, and the top of the limiting cover has a clearance hole. A limiting rod slides through the clearance hole. A steel ball is fixedly connected to the bottom of the limiting rod, and a limiting block is fixedly connected to the top of the limiting rod. The steel ball is used in conjunction with the arc-shaped hole.

[0010] In one possible design, the reset assembly includes a sliding ring fixedly connected to the outer wall of the sliding inner cylinder, the sliding ring being slidably connected inside a second housing, the inner diameter of the second housing being larger than the inner diameter of the first housing, and a reset spring fixedly connected between the bottom of the sliding ring and the bottom inner wall of the second housing, the reset spring being sleeved on the outer wall of the sliding inner cylinder.

[0011] In one possible design, the discharge assembly includes a protective cover fixedly connected to the top of the sliding inner cylinder, a connecting pipe fixedly connected to the top of the protective cover, a pressing head fixedly connected to the top of the connecting pipe, and a discharge pipe fixedly connected to one side of the pressing head.

[0012] In one possible design, the bottom of the base plate is fixedly connected to an installation tube, and the interior of the installation tube is interference-fitted with a liquid suction hose.

[0013] In one possible design, an annular plate is fixedly fitted onto the outer wall of the second housing, and the outer wall of the second housing is provided with external threads.

[0014] In one possible design, the bottom inner wall of the second housing is inclined.

[0015] In this application, during use, the device is fixed to the hair dye bottle or shampoo and conditioner bottle by the external thread. By pressing the press head, the press head moves the connecting tube down, the connecting tube moves the protective cover down, the protective cover moves the sliding inner cylinder down, the sliding inner cylinder moves inside the first housing, the sliding inner cylinder moves the sliding ring down, and the sliding ring squeezes the return spring.

[0016] At this time, the steel ball is inside the arc-shaped hole, and the gas can only be discharged through the discharge pipe. When the pressing head is released, the sliding ring moves upward under the elastic force of the return spring, and then the substance inside the bottle is drawn out through the liquid suction hose and sent into the interior of the sliding inner cylinder. At this time, the steel ball is pushed up. After repeated cycles, the substance inside is discharged through the discharge pipe, completing the discharge process.

[0017] Furthermore, as the steel ball moves upward, the limiting rod moves inside the clearance hole, which ensures the stability of the steel ball and prevents it from becoming misaligned, thus preventing the steel ball from not perfectly fitting the arc-shaped hole during its descent. This extends the service life of the device. In addition, the return spring is located outside the mounting tube and does not come into contact with the material, which reduces corrosion of the return spring and extends the service life of the device.

[0018] Beneficial effects: Extended service life: By designing the spring to be located outside the mounting tube and not in direct contact with the material, corrosion problems caused by prolonged contact with the material are avoided, significantly extending the service life of the pump head.

[0019] Improved sealing performance: In the sealing assembly, the steel ball engages with the arc-shaped hole on the base plate via a limiting rod, ensuring the stability of the steel ball during its vertical movement and preventing misalignment. This design allows the steel ball to perfectly conform to the arc-shaped hole during its descent, thereby improving the sealing performance of the pump head and ensuring efficient material handling.

[0020] Easy to operate: The pump head of this application has a simple structure and is easy to operate. Users only need to press the press head to complete the material feeding process. After releasing the press head, the spring automatically returns to its original position under the action of elastic force, preparing for the next material feeding. This design improves the user experience.

[0021] Wide applicability: The pump head of this application can be widely used in the packaging of liquid or semi-liquid products such as hair dyes and shampoos, demonstrating broad applicability. Furthermore, its simple structure and low cost help reduce production costs and enhance market competitiveness. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a pump head with a spring that does not contact the material, as proposed in this utility model.

[0023] Figure 2 This is an exploded view of the protective cover and discharge pipe in a pump head where the spring does not contact the material, as proposed in this utility model.

[0024] Figure 3 This is a three-dimensional cross-sectional view of the first and second housings in a pump head where the spring does not contact the material, as proposed in this utility model.

[0025] Figure 4 An exploded view of the sliding inner cylinder and the first shell in a pump head where the spring does not contact the material, as proposed in this utility model.

[0026] Figure 5 This is an exploded view of the steel ball and the limiting cover in a pump head where the spring does not contact the material, as proposed in this utility model.

[0027] In the diagram: 1. Pressing head; 2. Annular plate; 3. Liquid suction hose; 4. Installation tube; 5. First housing; 6. Sliding inner cylinder; 7. Protective cover; 8. Connecting tube; 9. Discharge tube; 10. Second housing; 11. Base plate; 12. Steel ball; 13. Limiting cover; 14. Return spring; 15. Sliding ring; 16. Arc-shaped hole; 17. External thread; 18. Limiting block; 19. Limiting rod; 20. Clearance hole; 21. Rectangular hole. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Example 1; Refer to Figure 1-5 A pump head includes: a second housing 10 and a first housing 5. The second housing 10 is located on top of the first housing 5 and is connected to the first housing 5. A base plate 11 is fixedly connected to the bottom of the first housing 5. An arc-shaped hole 16 is formed inside the base plate 11. A sealing assembly for sealing the arc-shaped hole 16 is provided on the top of the base plate 11. The sealing assembly includes a limiting cover 13 fixedly connected to the top of the base plate 11. A plurality of rectangular holes 21 are formed on the outer wall of the limiting cover 13. A clearance hole 20 is formed on the top of the limiting cover 13. A limiting rod 19 slides through the clearance hole 20. A steel ball 12 is fixedly connected to the bottom of the positioning rod 19, and a limiting block 18 is fixedly connected to the top of the positioning rod 19. The steel ball 12 is used in conjunction with the arc-shaped hole 16. When the steel ball 12 moves upward, the limiting rod 19 moves inside the clearance hole 20, which can ensure the stability of the steel ball 12 and prevent the steel ball 12 from being misaligned, so that the steel ball 12 cannot perfectly fit with the arc-shaped hole 16 during the fall. This can extend the service life of the device. In addition, the return spring 14 is outside the mounting tube 4 and does not come into contact with the material, which can reduce the corrosion of the return spring 14 and extend the service life of the device.

[0030] The inner wall of the first housing 5 has a sliding inner cylinder 6 that slides through it. The outer wall of the sliding inner cylinder 6 is provided with a reset assembly for resetting. The reset assembly includes a sliding ring 15 that is fixedly connected to the outer wall of the sliding inner cylinder 6. The sliding ring 15 is slidably connected to the inside of the second housing 10. The inner diameter of the second housing 10 is larger than the inner diameter of the first housing 5. The bottom of the sliding ring 15 and the bottom inner wall of the second housing 10 are fixedly connected to the same reset spring 14. The reset spring 14 is sleeved on the outer wall of the sliding inner cylinder 6. At this time, the steel ball 12 is located inside the arc-shaped hole 16, and the gas can only be discharged through the discharge pipe 9. When the pressing head 1 is released, the sliding ring 15 moves upward under the elastic force of the reset spring 14, and then the substance inside the bottle is drawn out through the liquid suction hose 3 and sent into the inside of the sliding inner cylinder 6. At this time, the steel ball 12 is pushed up. After repeated cycles, the substance inside is discharged through the discharge pipe 9, completing the discharge process.

[0031] The top of the sliding inner cylinder 6 is provided with a discharge assembly for discharging material. The discharge assembly includes a protective cover 7 fixedly connected to the top of the sliding inner cylinder 6. A connecting pipe 8 is fixedly connected to the top of the protective cover 7. A pressing head 1 is fixedly connected to the top of the connecting pipe 8. A discharge pipe 9 is fixedly connected to one side of the pressing head 1. An installation pipe 4 is fixedly connected to the bottom of the base plate 11. A liquid suction hose 3 is interference-fitted inside the installation pipe 4. The device is fixed to the hair dye bottle or shampoo and conditioner bottle by the external thread 17. By pressing the pressing head 1, the pressing head 1 drives the connecting pipe 8 to move down. The connecting pipe 8 drives the protective cover 7 to move down. The protective cover 7 drives the sliding inner cylinder 6 to move down. The sliding inner cylinder 6 moves inside the first housing 5. The sliding inner cylinder 6 drives the sliding ring 15 to move down. The sliding ring 15 squeezes the return spring 14.

[0032] This application can be used in the field of personal care products, and can also be applied to other technical fields.

[0033] Example 2; Reference Figure 1-5 An improvement based on Example 1: A pump head in which the spring does not contact the material, which is used in the field of washing and care products, wherein an annular plate 2 is fixedly sleeved on the outer wall of the second housing 10, and the outer wall of the second housing 10 is provided with external threads 17, and the bottom inner wall of the second housing 10 is inclined.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pump head in which the spring does not contact the material, characterized in that, include: The second housing (10) and the first housing (5) are connected. The second housing (10) is located on top of the first housing (5). The second housing (10) is connected to the first housing (5). A base plate (11) is fixedly connected to the bottom of the first housing (5). An arc-shaped hole (16) is opened inside the base plate (11). A sealing component for sealing the arc-shaped hole (16) is provided on the top of the base plate (11). The first housing (5) has a sliding inner cylinder (6) that slides through it, and the outer wall of the sliding inner cylinder (6) is provided with a reset component for resetting. The top of the sliding inner cylinder (6) is provided with a discharge assembly for discharging material.

2. The pump head with a spring that does not contact the material according to claim 1, characterized in that, The sealing assembly includes a limiting cover (13) fixedly connected to the top of the base plate (11). The outer wall of the limiting cover (13) is provided with a plurality of rectangular holes (21). The top of the limiting cover (13) is provided with a clearance hole (20). A limiting rod (19) slides through the interior of the clearance hole (20). A steel ball (12) is fixedly connected to the bottom of the limiting rod (19). A limiting block (18) is fixedly connected to the top of the limiting rod (19). The steel ball (12) is used in conjunction with the arc-shaped hole (16).

3. A pump head with a spring that does not contact the material according to claim 1, characterized in that, The reset assembly includes a sliding ring (15) fixedly connected to the outer wall of the sliding inner cylinder (6). The sliding ring (15) is slidably connected inside the second housing (10). The inner diameter of the second housing (10) is larger than the inner diameter of the first housing (5). The bottom of the sliding ring (15) and the bottom inner wall of the second housing (10) are fixedly connected to the same reset spring (14). The reset spring (14) is sleeved on the outer wall of the sliding inner cylinder (6).

4. A pump head with a spring that does not contact the material according to claim 1, characterized in that, The discharge assembly includes a protective cover (7) fixedly connected to the top of the sliding inner cylinder (6), a connecting pipe (8) fixedly connected to the top of the protective cover (7), a pressing head (1) fixedly connected to the top of the connecting pipe (8), and a discharge pipe (9) fixedly connected to one side of the pressing head (1).

5. A pump head with a spring that does not contact the material according to claim 1, characterized in that, The bottom of the base plate (11) is fixedly connected to the mounting tube (4), and the mounting tube (4) is internally fitted with a liquid suction tube (3).

6. A pump head with a spring that does not contact the material according to claim 1, characterized in that, The outer wall of the second housing (10) is fixedly fitted with an annular plate (2), and the outer wall of the second housing (10) is provided with external threads (17).

7. A pump head with a spring that does not contact the material according to claim 1, characterized in that, The bottom inner wall of the second housing (10) is inclined.

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