Lightweight all-plastic emulsion pump

Abstract

The utility model relates to the technical field of emulsion pumps, and discloses a light-weight all-plastic emulsion pump which is of an all-plastic structure and comprises a pump body, a main column, an auxiliary column, a piston, a one-way ball valve, threads, a lock cover, a pressing head and a spring. The auxiliary column is embedded in the main column in a matched mode. The piston movably sleeves the auxiliary column in a sealing manner, is movably connected with the inner wall of the pump body in a sealing manner and is movably connected with the inner wall of the lower end of the main column in a sealing manner; the one-way ball valve is arranged in the lower end of the pump body; the thread and the lock cover are integrally formed, and the upper end of the pump body is sleeved with the thread which is connected with the upper end of the pump body through the lock cover. The upper end of the main column movably penetrates through the lock cover from the lower end to the upper end and is communicated with the pressing head; and the spring is sleeved on the main column and is arranged between the pressing head and the lock cover. According to the light-weight all-plastic emulsion pump provided by the utility model, the number of parts is effectively reduced, the assembly process is simplified, the use of materials is reduced, the light-weight design of the structure is realized, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of emulsion pumps, in particular to a lightweight all-plastic emulsion pump. Background Art

[0002] Chinese Patent No. CN201420339826.6 discloses an emulsion pump, which includes a press head, a lock cap, a screw-threaded outer cap, a pump body and a liquid suction pipe. An annular flange is provided at the upper end of the pump body. The screw-threaded outer cap is sleeved on the upper end of the pump body along the longitudinal axis of the pump body from top to bottom. The lock cap is snap-fitted on the upper end of the pump body to limit the screw-threaded outer cap to rotate between the lock cap and the annular flange. The pump body further includes a column assembly, a spring and a ball. The column assembly includes a main column, a piston and a sub-column. Inner and outer threads adapted to each other are respectively provided on the lock cap and the press head. However, the lock cap and the screw-threaded outer cap of this emulsion pump are separate parts and require additional assembly, resulting in a complex assembly process, heavy structural materials, which is not conducive to the lightweight design of the emulsion pump, and the production cost is relatively high. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the problems of the prior art, and provide a lightweight all-plastic emulsion pump. By optimizing the structural design, the number of parts is reduced, the overall weight is reduced, and the production cost is significantly reduced, while ensuring the convenience of use and the pumping efficiency.

[0004] In order to achieve the above purpose, the utility model adopts the following scheme:

[0005] A lightweight all-plastic emulsion pump, which has an all-plastic structure, includes a pump body, a main column, a sub-column, a piston and a one-way ball valve; the sub-column is fitted and installed in the main column in a matching manner; the piston is movably and sealingly sleeved on the sub-column and is movably and sealingly connected to the inner wall of the pump body, and is movably and sealingly connected to the inner wall of the lower end of the main column; the one-way ball valve is arranged inside the lower end of the pump body; the lightweight all-plastic emulsion pump further includes:

[0006] A screw thread and a lock cap; the screw thread and the lock cap are integrally formed, and the screw thread is sleeved on the upper end of the pump body and connected to the upper end of the pump body through the lock cap;

[0007] A press head; the upper end of the main column can movably pass through from the lower end to the upper end of the lock cap and is connected to the press head;

[0008] A spring, which is sleeved on the main column and installed between the press head and the lock cap.

[0009] Furthermore, the press head and the main column are integrally formed.

[0010] Further, the lock cover includes a support nested portion and a locking sleeve; the support nested portion is nested in the upper end of the pump body in a matching manner; the locking sleeve is sleeved on the support nest; the upper end of the locking sleeve is integrally formed and connected to the upper end of the support nest; the locking sleeve is threadedly connected to the outer wall of the upper end of the pump body; a support platform for supporting the lower end of the spring is provided inside the lower end of the support nest;

[0011] The screw thread is sleeved on the upper end of the pump body and is integrally formed and connected to the outer wall of the upper end of the locking sleeve.

[0012] Further, the lock cover further includes a first waterproof ring wall; the first waterproof ring wall is connected to the top end surface of the locking sleeve at a position corresponding to the support nested portion; the pressing head includes a pressing nozzle and a second waterproof ring wall; the main column is integrally formed and connected to the pressing nozzle; the second waterproof ring wall is sleeved on the main column and is connected to the bottom end of the pressing nozzle; the upper end of the spring is placed on the bottom end of the pressing nozzle;

[0013] When the spring is in a natural state, the upper end portion of the first waterproof ring wall is embedded in the second waterproof ring wall.

[0014] Further, both the first waterproof ring wall and the second waterproof ring wall are circular tubular structures.

[0015] Further, the outer wall diameter of the first waterproof ring wall is equal to or smaller than the inner wall diameter of the second waterproof ring wall.

[0016] Further, the height of the second waterproof ring wall is greater than or equal to the height of the first waterproof ring wall.

[0017] Further, a plurality of reinforcing rib plates are connected to the bottom surface of the pressing nozzle, which are uniformly arranged around the central axis of the main column and are connected to the inner wall of the second waterproof ring wall and the outer wall of the main column.

[0018] Further, a snap-fastening member that is adaptively sleeved on the outer wall of the first waterproof ring wall is provided between the top surface of the locking sleeve and the bottom surface of the second waterproof ring wall.

[0019] Further, the pump body, the main column, the auxiliary column, the one-way ball valve, the screw thread, the lock cover, the pressing head and the spring are all made of PP material; the piston is made of PE material.

[0020] Compared with the existing technology, the utility model has the following advantages:

[0021] 1. The utility model combines a pump body, a main column, a secondary column, a piston, a one-way ball valve, a screw thread, a lock cover, a push head and a spring, improves the screw thread and the lock cover, integrally forms the screw thread and the lock cover to form an integral structure, changes the situation that the screw thread and the lock cover are separate parts and need to be assembled additionally in the traditional design, not only reduces the number of parts, simplifies the assembly process, but also reduces the use of materials, realizes the lightweight design of the structure, reduces the production cost, and improves the overall sealing performance and structural strength, effectively avoiding the problem of liquid leakage.

[0022] 2. The utility model also integrally forms the push head and the main column, further reducing the assembly gap between parts. Combined with the integrally formed screw thread and lock cover, it further reduces the number of parts, simplifies the assembly process, and reduces the use of materials, realizes the lightweight design of the structure, and reduces the production cost.

[0023] 3. The utility model is made of all-plastic materials and has a streamlined structure design, that is, the number of parts is reduced, making the lightweight all-plastic emulsion pump significantly lighter than traditional products, facilitating carrying and use. And the all-plastic design conforms to the current environmental protection trend, reduces the dependence on metal resources, and is conducive to sustainable development. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The following further details the present application in conjunction with the drawings and specific embodiments.

[0025] Figure 1 is a cross-sectional structural schematic diagram of Embodiment 1 of the lightweight all-plastic emulsion pump of the present utility model.

[0026] Figure 2 is a cross-sectional structural schematic diagram of Embodiment 2 of the lightweight all-plastic emulsion pump of the present utility model.

[0027] Figure 3 is a cross-sectional structural schematic diagram of the integral structure of the push head and the main column of the present utility model.

[0028] The figures include:

[0029] pump body 1, main column 2, secondary column 3, piston 4, one-way ball valve 5, lock cover 6, support nesting part 61, support platform 611, locking sleeve 62, first waterproof ring wall 63, push head 7, pressing nozzle 71, second waterproof ring wall 72, spring 8, reinforcing rib plate 9, buckle part 10, screw thread 11. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following further details the specific embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0031] Such asFigure 1 As shown in the figure, in Embodiment 1, a lightweight all-plastic emulsion pump has an all-plastic structure, including a pump body 1, a main column 2, a secondary column 3, a piston 4, a one-way ball valve 5, a screw thread 11, a locking cap 6, a pressing head 7 and a spring 8. This lightweight all-plastic emulsion pump has an all-plastic structure, achieving significant weight reduction compared to traditional products, making it convenient to carry and use. Also, the all-plastic design conforms to the current environmental protection trend, reducing the dependence on metal resources and being conducive to sustainable development. Specifically, the pump body 1, the main column 2, the secondary column 3, the one-way ball valve 5, the screw thread 11, the locking cap 6, the pressing head 7 and the spring 8 are made of PP material, and the piston 4 is made of PE material. With this design, the lightweight all-plastic emulsion pump has the characteristics of high strength, corrosion resistance and wear resistance, as well as many advantages such as excellent structural stability, environmental protection and safety. The secondary column 3 is fitted and installed in the main column 2 in a matching manner; the piston 4 is movably and sealingly sleeved on the secondary column 3 and is movably and sealingly connected to the inner wall of the pump body 1 and is also movably and sealingly connected to the inner wall of the lower end of the main column 2; the one-way ball valve 5 is arranged inside the lower end of the pump body 1; the screw thread 11 and the locking cap 6 are integrally formed, and the screw thread 11 is sleeved on the upper end of the pump body 1 and is connected to the upper end of the pump body 1 through the locking cap 6; the upper end of the main column 2 can movably pass through from the lower end to the upper end of the locking cap 6 and is connected to the pressing head 7; the spring 8 is sleeved on the main column 2 and is installed between the pressing head 7 and the locking cap 6.

[0032] This lightweight all-plastic emulsion pump combines the pump body 1, the main column 2, the secondary column 3, the piston 4, the one-way ball valve 5, the screw thread 11, the locking cap 6, the pressing head 7 and the spring 8, and improves the screw thread 11 and the locking cap 6. The screw thread 11 and the locking cap 6 are integrally formed to form an integral structure, changing the situation in the traditional design where the screw thread 11 and the locking cap 6 are separate parts and require additional assembly. This not only reduces the number of parts, simplifies the assembly process, but also reduces the use of materials, achieves lightweight design of the structure, reduces production costs, and improves the overall sealing performance and structural strength, effectively avoiding the problem of liquid leakage.

[0033] Preferably, in another embodiment, namely Embodiment 2, as Figures 2 to 3 shown, the pressing head 7 and the main column 2 are integrally formed. Similarly, the integral molding design of the pressing head 7 and the main column 2 further reduces the assembly gaps between parts. Combined with the integrally formed screw thread 11 and locking cap 6, it further reduces the number of parts, simplifies the assembly process, and reduces the use of materials, achieving lightweight design of the structure and reducing production costs.

[0034] In Embodiment 2, specifically, the lock cover 6 includes a support nested part 61, a locking sleeve 62, and a first waterproof ring wall 63; the support nested part 61 is adaptively nested inside the upper end of the pump body 1; the locking sleeve 62 is sleeved on the support nested part; the upper end of the locking sleeve 62 is integrally formed and connected to the upper end of the support nested part; the locking sleeve 62 is threadedly connected to the outer wall of the upper end of the pump body 1; the lower end inside the support nested part has a support platform 611 for supporting the lower end of the spring 8; the thread 11 is sleeved on the upper end of the pump body 1 and is integrally formed and connected to the outer wall of the upper end of the locking sleeve 62. The first waterproof ring wall 63 is connected to the top end surface of the locking sleeve 62 at the position corresponding to the support nested part 61; the pressing head 7 includes a pressing nozzle 71 and a second waterproof ring wall 72; the main column 2 is integrally formed and connected to the pressing nozzle 71 in a communicating manner; the second waterproof ring wall 72 is sleeved on the main column 2 and is connected to the bottom end of the pressing nozzle 71; the upper end of the spring 8 is placed on the bottom end of the pressing nozzle 71; when the spring 8 is in a natural state, the upper end part of the first waterproof ring wall 63 is embedded in the second waterproof ring wall 72. By providing the support nested part 61, the locking sleeve 62, and the first waterproof ring wall 63 to form the lock cover 6, the thread 11 and the locking sleeve 62 are integrally formed. Using a threaded connection method, the overall structure formed by the lock cover 6 and the thread 11 is quickly installed on the upper end of the pump body 1, reducing the number of parts, simplifying the assembly process, and reducing the use of materials, achieving a lightweight design of the structure and reducing production costs. On the other hand, a waterproof design is carried out on the pressing head 7 and the lock cover 6. By providing the first waterproof ring wall 63 and the second waterproof ring wall 72, and their positional relationship, specifically, when the spring 8 is in a natural state, the upper end part of the first waterproof ring wall 63 is embedded in the second waterproof ring wall 72, a waterproof design is carried out on the main column 2, and the upper end of the main column 2 is completely enclosed within the first waterproof ring wall 63 and the second waterproof ring wall 72, preventing water droplets from entering the inner cavity of the pump body 1 through the gap between the main column 2 and the lock cover 6 during showering and contaminating the material, thereby achieving the effect of cleanliness, environmental protection, and hygiene.

[0035] Preferably, both the first waterproof ring wall 63 and the second waterproof ring wall 72 are circular tubular structures, and the structural design is simple. Of course, according to requirements, other annular structures can also be used for substitution. Moreover, the outer wall diameter of the first waterproof ring wall 63 is equal to or less than the inner wall diameter of the second waterproof ring wall 72, and the height of the second waterproof ring wall 72 is greater than or equal to the height of the first waterproof ring wall 63. By designing the diameters and heights of the first waterproof ring wall 63 and the second waterproof ring wall 72 in this way, when the spring 8 is compressed, the first waterproof ring wall 63 can enter the second waterproof ring wall 72 with sufficient space.

[0036] To enhance the structural stability and have good connection strength, several reinforcing rib plates 9 are connected to the bottom surface of the pressing nozzle 71. The reinforcing rib plates 9 are evenly arranged around the central axis of the main column 2 and are connected to the inner wall of the second waterproof ring wall 72 and the outer wall of the main column 2. The design of the reinforcing rib plates 9 can better strengthen the pressing nozzle 71, the second waterproof ring wall 72 and the main column 2

[0037] To prevent accidental pressing of the pressing head 7, a buckle 10 is provided between the top surface of the locking sleeve 62 and the bottom surface of the second waterproof ring wall 72, which is adapted to be sleeved on the outer wall of the first waterproof ring wall 63. By restricting the downward movement of the pressing head 7 through the buckle 10, the effect of preventing accidental pressing of the pressing head 7 is achieved.

[0038] In summary, the embodiment of the present utility model provides a lightweight all-plastic emulsion pump, which has the following advantages:

[0039] First, by combining the pump body 1, the main column 2, the auxiliary column 3, the piston 4, the one-way ball valve 5, the thread 11, the lock cover 6, the pressing head 7 and the spring 8, and improving the thread 11 and the lock cover 6, the thread 11 and the lock cover 6 are integrally formed to form an integral structure, changing the situation in the traditional design where the thread 11 and the lock cover 6 are separate parts and need to be assembled additionally. This not only reduces the number of parts, simplifies the assembly process, but also reduces the use of materials, realizes the lightweight design of the structure, reduces the production cost, and improves the overall sealing performance and structural strength, effectively avoiding the problem of liquid leakage.

[0040] Second, on the basis of improving the thread 11 and the lock cover 6, the pressing head 7 and the main column 2 are also integrally formed. This further reduces the assembly gap between parts. Combined with the integrally formed thread 11 and lock cover 6, it further reduces the number of parts, simplifies the assembly process, and reduces the use of materials, realizes the lightweight design of the structure, and reduces the production cost.

[0041] Third, it is made of all-plastic materials and has a streamlined structure design, that is, the number of parts is reduced, making this lightweight all-plastic emulsion pump significantly lighter than traditional products, facilitating carrying and use. In addition, the all-plastic design conforms to the current environmental protection trend, reduces the dependence on metal resources, and is conducive to sustainable development.

[0042] The above are only the preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present application, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present application.

Claims

1. A lightweight, all-plastic lotion pump, comprising a pump body, a main column, a secondary column, a piston, and a one-way ball valve; the secondary column is adapted to be embedded in the main column; the piston is movably and sealingly sleeved on the secondary column and movably and sealingly connected to the inner wall of the pump body and the inner wall of the lower end of the main column; the one-way ball valve is disposed in the lower end of the pump body; and is characterized in that: The lightweight all-plastic lotion pump also includes: Screw thread and lock cover; the screw thread and lock cover are integrally formed, and the screw thread sleeve is connected to the upper end of the pump body through the lock cover; The upper end of the main column can move from the lower end to the upper end of the lock cover and is connected to the press head; A spring is sleeved on the main column and installed between the push head and the lock cover.

2. The lightweight all-plastic lotion pump according to claim 1, characterized in that: The push head and the main column are integrally formed.

3. The lightweight all-plastic lotion pump according to claim 1 or 2, characterized in that: The locking cover includes a supporting nesting portion and a locking sleeve; the supporting nesting portion is adapted to be nested in the upper end of the pump body; the locking sleeve is sleeved on the supporting nesting portion; the upper end of the locking sleeve is integrally connected to the upper end of the supporting nesting portion; the locking sleeve is threadedly connected to the outer wall of the upper end of the pump body; the lower end of the supporting nesting portion has a support platform for supporting the lower end of the spring; The threaded sleeve is on the upper end of the pump body and is integrally connected with the outer wall of the upper end of the locking sleeve.

4. The lightweight all-plastic lotion pump according to claim 3, characterized in that: The locking cover further includes a first waterproof ring wall; the first waterproof ring wall is connected to the top surface of the locking sleeve at a position corresponding to the support nesting portion; the pressing head includes a pressing nozzle and a second waterproof ring wall; the main column and the pressing nozzle are integrally formed and connected; the second waterproof ring wall is sleeved on the main column and connected to the bottom end of the pressing nozzle; the upper end of the spring is placed on the bottom end of the pressing nozzle; When the spring is in a natural state, the upper end portion of the first waterproof ring wall is embedded in the second waterproof ring wall.

5. The lightweight all-plastic lotion pump according to claim 4, characterized in that: The first waterproof ring wall and the second waterproof ring wall are both tubular structures.

6. The lightweight all-plastic lotion pump according to claim 5, characterized in that: The outer wall diameter of the first waterproof ring wall is equal to or smaller than the inner wall diameter of the second waterproof ring wall.

7. The lightweight all-plastic lotion pump according to claim 4, characterized in that: The height of the second waterproof ring wall is greater than or equal to the height of the first waterproof ring wall.

8. The lightweight all-plastic lotion pump according to claim 4, characterized in that: A plurality of reinforcing ribs are connected to the bottom surface of the pressing nozzle, which are evenly distributed around the central axis of the main column and are connected to the inner wall of the second waterproof ring wall and the outer wall of the main column.

9. The lightweight all-plastic lotion pump according to claim 4, characterized in that: A snap fastener adapted to be clamped on the outer wall of the first waterproof ring wall is provided between the top surface of the locking sleeve and the bottom surface of the second waterproof ring wall.

10. The lightweight all-plastic lotion pump according to claim 1, characterized in that: The pump body, main column, auxiliary column, one-way ball valve, screw thread, lock cover, push head and spring are all made of PP material; the piston is made of PE material.

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