Vacuum pressing pump capable of preventing dripping liquid from remaining

Abstract

The utility model discloses a vacuum pressing pump capable of preventing dripping liquid from remaining, which comprises a pump body, the top of the pump body penetrates through a fixing cover and is connected with a locking cover, a containing cavity is arranged in the pump body, the bottom end of the containing cavity is connected with a liquid suction pipe, a pressing assembly is arranged in the containing cavity, the pressing assembly comprises a pressing pipe, and the liquid suction pipe is connected with the liquid suction pipe. The top of the pressing pipe is connected with a liquid outlet head; a connecting hole is formed in the top of the liquid outlet head and movably connected with an adjusting cover, the inner top of the adjusting cover is fixedly connected with the top end of a second spring, and the bottom of the second spring is fixedly connected with a second ball used for sealing an inner channel of the pressing pipe. When the pressing pump is not used, the sliding block of the adjusting cover can rotate and slide into the limiting sliding groove communicated with the lower end of the up-down sliding groove, so that the second spring pushes the second ball body to seal an inner channel of the pressing pipe, liquid is effectively prevented from dripping from the liquid outlet head, and the effect of preventing dripping liquid from remaining is achieved.

Description

Technical Field

[0001] This utility model relates to the field of press pump technology, specifically to a vacuum press pump that prevents dripping residue. Background Technology

[0002] In daily life and industrial production, push-button pumps are widely used in various liquid packaging containers, such as cosmetic bottles and cleaning product bottles. Traditional push-button pumps commonly suffer from residual liquid during use. After the user presses the pump, some liquid often remains at the outlet. This residual liquid not only soils the container surface and the surrounding environment, affecting the product's appearance and user experience, but also potentially leads to liquid waste, especially for some higher-priced liquid products, where the waste problem is more pronounced.

[0003] Based on the above, this utility model proposes a vacuum pump that prevents dripping and residue, which can effectively solve the above problems. Utility Model Content

[0004] This invention addresses the shortcomings of the existing technology by providing a vacuum pump that prevents dripping residue.

[0005] This utility model is achieved through the following technical solution:

[0006] A vacuum pump for preventing dripping and residue includes a pump body with a fixed cover and a locking cover connected to the top of the pump body. The pump body has an internal receiving cavity with a suction tube connected to its bottom end. A pressing assembly is located inside the receiving cavity, including a pressing tube with a piston tube connected to its lower end. A piston is fitted around the top of the piston tube, and the top of the piston is fixedly connected to the pressing tube. The outer periphery of the piston abuts against the inner wall of the receiving cavity. A first spring is fixedly connected to the bottom end of the piston tube, and a first ball for sealing the receiving cavity is fixedly connected to the bottom end of the first spring. A liquid outlet is connected to the top of the pressing tube. A connection hole is formed at the top of the liquid outlet, and an adjusting cover is movably connected to the connection hole. The inner top of the adjusting cover is fixedly connected to the top end of a second spring, and a second ball for sealing the internal channel of the pressing tube is fixedly connected to the bottom of the second spring.

[0007] According to the above technical solution, as a further preferred technical solution, the top of the adjusting cover is provided with a screwing part, and the bottom two sides of the adjusting cover are respectively fixedly connected with sliders.

[0008] According to the above technical solution, as a further preferred technical solution, the inner walls of the connecting hole are respectively provided with upper and lower sliding grooves that cooperate with the slider, and the upper and lower ends of the upper and lower sliding grooves are respectively connected to the limit sliding grooves.

[0009] According to the above technical solution, as a further preferred technical solution, the locking cover is provided with a threaded hole.

[0010] According to the above technical solution, as a further preferred technical solution, the liquid outlet head is provided with an external thread that mates with the threaded hole.

[0011] According to the above technical solution, as a further preferred technical solution, the top outer periphery of the pump body is provided with a plurality of protrusions with hemispherical longitudinal sections, and the inner sidewall of the locking cover is provided with a groove that cooperates with and connects to the protrusions.

[0012] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0013] This utility model provides a vacuum pump that prevents dripping and residue. It features a connecting hole at the top of the outlet head, connected to an adjusting cover. The adjusting cover is connected to a second ball via a second spring. When the pump is not in use, the slider of the adjusting cover can be rotated and slid into a limiting groove connected to the lower end of the upper and lower sliding grooves. This causes the second spring to push the second ball to seal the internal channel of the pressing tube, effectively preventing liquid from dripping from the outlet head and achieving the effect of preventing dripping and residue. When the pump needs to be used, the slider of the adjusting cover can be rotated and slid into a limiting groove connected to the upper end of the upper and lower sliding grooves. In this case, the second ball cannot seal the internal channel of the pressing tube, allowing for normal pressing and dispensing of liquid. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the liquid outlet head structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the adjusting cover structure of this utility model;

[0017] Figure 4 for Figure 1 A magnified view of part A. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0019] A vacuum pump for preventing dripping and residue includes a pump body 1. A fixed cover 2 passes through the top of the pump body 1 and is connected to a locking cover 3. The pump body 1 has an internal receiving cavity 101. A suction tube 4 is connected to the bottom end of the receiving cavity 101. A pressing assembly is disposed inside the receiving cavity 101. The pressing assembly includes a pressing tube 5. A piston tube 6 is connected to the lower end of the pressing tube 5. A piston 7 is sleeved on the outer side of the top of the piston tube 6. The top of the piston 7 is fixedly connected to the pressing tube 5. The outer periphery of the piston 7 is connected to the receiving cavity 101. The inner wall of the piston tube 6 is fitted and abutted against the piston tube 6; a first spring 8 is fixedly connected to the bottom end of the piston tube 6, and a first ball 9 for sealing the receiving cavity 101 is fixedly connected to the bottom end of the first spring 8; a liquid outlet head 12 is connected to the top of the pressing tube 5; a connection hole 121 is opened on the top of the liquid outlet head 12, and an adjustment cover 13 is movably connected to the connection hole 121; the inner top of the adjustment cover 13 is fixedly connected to the top end of the second spring 10, and a second ball 11 for sealing the internal channel of the pressing tube 5 is fixedly connected to the bottom of the second spring 10.

[0020] This invention provides a solution by opening a connection hole 121 at the top of the liquid outlet head 12 and connecting it to an adjustment cover 13. The adjustment cover 13 is connected to a second ball 11 via a second spring 10, which effectively prevents liquid from dripping from the liquid outlet head 12 and achieves the effect of preventing dripping residue.

[0021] Furthermore, in another embodiment, the top of the adjusting cover 13 is provided with a screwing part 131, and the bottom two sides of the adjusting cover 13 are respectively fixedly connected with sliders 132. The inner walls of the connecting hole 121 are respectively provided with upper and lower sliding grooves 122 that cooperate with the sliders 132, and the upper and lower ends of the upper and lower sliding grooves 122 are respectively connected to limit sliding grooves 123.

[0022] By providing a screw-on part 131 at the top of the adjusting cover 13, the user can easily operate the adjusting cover 3 by hand. The cooperation between the upper and lower sliding grooves 122 and the slider 132 at the bottom of the adjusting cover 3 allows the adjusting cover to move up and down within the connecting hole 121. The limiting grooves 123 connected at the upper and lower ends of the upper and lower sliding grooves 122 can limit the upper and lower positions of the adjusting cover 3. When the press pump is not used, the slider 132 of the adjusting cover 3 can be rotated and slid into the limiting groove 123 connected at the lower end of the upper and lower sliding grooves 122, so that the second spring 10 pushes the second ball 11 to close the internal channel of the press tube 5, effectively preventing liquid from dripping from the outlet head 12 and achieving the effect of preventing dripping residue. When the press pump is needed, the slider 132 of the adjusting cover 3 can be rotated and slid into the limiting groove 123 connected at the upper end of the upper and lower sliding grooves 122. At this time, the second ball 11 cannot close the internal channel of the press tube 5, so that liquid can be dispensed normally by pressing.

[0023] Furthermore, in another embodiment, the locking cover 3 is provided with a threaded hole 31. The liquid outlet head 12 is provided with an external thread 124 that engages with the threaded hole 31.

[0024] When not in use, the locking cap 3 and the liquid outlet head 12 are tightly connected together through the engagement of the threaded hole 31 and the external thread 124; when needed, the locking cap 3 and the liquid outlet head 12 are separated to facilitate the subsequent operation of pressing the liquid outlet head 12 to squeeze out liquid.

[0025] Furthermore, in another embodiment, the top outer periphery of the pump body 1 is provided with a plurality of protrusions 102 with hemispherical longitudinal sections, and the inner sidewall of the locking cover 3 is provided with a groove 301 that engages with and connects to the protrusions 102.

[0026] By setting the protrusion 102 and the groove 301, the connection stability between the pump body 1, the fixed cover 2 and the locking cover 3 is increased, preventing the pump body 1 and the locking cover 3 from separating from each other during use.

[0027] Based on the description and drawings of this utility model, those skilled in the art can easily manufacture or use the anti-drip residual vacuum pump of this utility model, and can produce the positive effects described in this utility model.

[0028] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0029] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A drip retention vacuum press pump characterized by: The pump body (1) has a fixed cover (2) at the top and a locking cover (3) at the top. The pump body (1) has an internal receiving cavity (101). A suction tube (4) is connected to the bottom of the receiving cavity (101). A pressing assembly is located inside the receiving cavity (101). The pressing assembly includes a pressing tube (5). A piston tube (6) is connected to the lower end of the pressing tube (5). A piston (7) is fitted onto the outer side of the top of the piston tube (6). The top of the piston (7) is fixedly connected to the pressing tube (5). The outer periphery of the piston (7) is flush with the inner wall of the receiving cavity (101). The piston tube (6) is fixedly connected to a first spring (8) at its bottom end, and a first ball (9) for closing the receiving cavity (101) is fixedly connected to the bottom end of the first spring (8); a liquid outlet head (12) is connected to the top of the pressing tube (5); a connecting hole (121) is opened on the top of the liquid outlet head (12), and an adjusting cover (13) is movably connected to the connecting hole (121); the inner top of the adjusting cover (13) is fixedly connected to the top end of the second spring (10), and a second ball (11) for closing the internal channel of the pressing tube (5) is fixedly connected to the bottom of the second spring (10).

2. The anti-drip residual vacuum pump according to claim 1, characterized in that: The top of the adjusting cover (13) is provided with a screwing part (131), and the bottom two sides of the adjusting cover (13) are respectively fixedly connected with sliders (132).

3. The anti-drip residual vacuum pump according to claim 2, characterized in that: The inner walls of the connecting hole (121) are respectively provided with upper and lower sliding grooves (122) that cooperate with the slider (132) and are connected to each other. The upper and lower ends of the upper and lower sliding grooves (122) are respectively connected to the limit sliding grooves (123).

4. The anti-drip residual vacuum pump according to claim 1, characterized in that: The locking cover (3) is provided with a threaded hole (31).

5. The anti-drip residual vacuum pump according to claim 4, characterized in that: The liquid outlet head (12) is provided with an external thread (124) that mates with the threaded hole (31).

6. The anti-drip residual vacuum pump according to claim 1, characterized in that: The pump body (1) has a plurality of protrusions (102) with hemispherical longitudinal sections on the top outer periphery, and the locking cover (3) has a groove (301) on the inner side wall that is connected to the protrusions (102).

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