Automatic pipette device

Abstract

The present invention discloses an automatic liquid suction dropper device, comprising a liquid storage bottle and a cover body, the cover body comprising an inner cover, a button and a piston, a dropper is arranged on the inner cover, the button is slidably connected to the inner cover, a spring is arranged between the button and the inner cover, one end of the piston is connected to the button, the piston is in the inner cover, and the button drives the piston to move in the inner cover, when the automatic liquid suction dropper device is in a closed state, the dropper is inserted into the liquid storage bottle, and the button and the bottle mouth of the liquid storage bottle are fixedly connected in a detachable manner. When the automatic liquid suction dropper device of the present invention is used, after the device is opened by rotating the outer cover, the liquid cosmetics in the liquid storage bottle automatically enter the dropper, eliminating the action of squeezing the airbag to absorb the liquid, and the operation is simpler. In addition, the present invention uses a piston instead of a rubber airbag, which solves the problem of rubber airbag aging. In addition, the present invention has good sealing performance.

Description

Technical Field

[0001] The invention relates to a dropper, in particular to a dropper device with an automatic liquid aspiration function. Background Art

[0002] In the cosmetics industry, many liquid cosmetics are packaged in bottles, and consumers usually pour them directly, spray them, or use a dropper to absorb them. The dropper method is to open the lid of the liquid storage bottle, insert the dropper, and squeeze the rubber airbag of the dropper to suck the liquid cosmetics in the liquid storage bottle into the tube. The whole process is too troublesome, and the rubber airbag is not easy to clean and is prone to aging. In addition, since the dropper and the liquid storage bottle do not form a whole, it may cause contamination if the dropper is placed randomly after use. Summary of the invention

[0003] The purpose of the present invention is to solve the above problems in the prior art, thereby providing an automatic liquid aspirating dropper device which can automatically aspirate and store the dropper.

[0004] The technical solution of the present invention is: an automatic liquid suction dropper device, including a liquid storage bottle and a cover body, the cover body including an inner cover, a button and a piston, a dropper is provided on the inner cover, the button is slidably connected to the inner cover, and a spring is provided between the button and the inner cover, one end of the piston is connected to the button, the piston is in the inner cover, and the button can drive the piston to move in the inner cover, and the piston is above the dropper, when the automatic liquid suction dropper device is in a closed state, the dropper is inserted into the liquid storage bottle, and the button and the bottle mouth of the liquid storage bottle are fixedly connected in a detachable manner.

[0005] Furthermore, in the above-mentioned automatic liquid aspiration dropper device, when the automatic liquid aspiration dropper device is in an open state, the button is separated from the liquid storage bottle, and the spring drives the button to bounce up, so that the piston moves upward in the inner cover.

[0006] Furthermore, the above-mentioned automatic liquid suction dropper device, wherein: the inner cover includes a dropper, an inner cylinder and an outer cylinder, the outer cylinder is hollow, the inner cylinder is inside the outer cylinder, and the inner cylinder and the outer cylinder are connected by a connecting part, the piston is inside the inner cylinder, the dropper is below the inner cylinder, and the dropper is communicated with the inner cylinder.

[0007] Furthermore, in the above-mentioned automatic liquid suction dropper device, the inner cover is integrally formed.

[0008] Furthermore, the above-mentioned automatic liquid suction dropper device, wherein: an opening is provided on the connecting portion of the inner cover, a sheet portion is formed on the button, the lower edge of the sheet portion passes through the opening, and a thread for threaded connection with the mouth of the liquid storage bottle is formed on the inner wall of the sheet portion.

[0009] Furthermore, in the above-mentioned automatic liquid suction dropper device, wherein: the outer wall of the button is provided with a clamping portion, the inner wall of the inner cover is provided with a slide groove, and the clamping portion of the button is limited to be located in the slide groove of the inner cover; or, the outer wall of the button is provided with a slide groove, the inner wall of the inner cover is provided with a clamping portion, and the clamping portion of the inner cover is limited to be located in the slide groove of the button, so that the button can be displaced along its axial direction in the inner cover.

[0010] Furthermore, the above-mentioned automatic liquid suction dropper device, wherein: an outer cover is further provided, and the inner cover is fixedly connected to the inside of the outer cover.

[0011] Furthermore, in the above-mentioned automatic liquid suction dropper device, an inner plug is sleeved on the outer periphery of the dropper, and when the liquid suction dropper device is in a sealed state, the inner plug and the dropper jointly seal the bottle mouth of the liquid storage bottle.

[0012] The technical effects of the present invention are mainly reflected in the following aspects: when the automatic liquid suction dropper device of the present invention is used, after the device is opened by rotating the outer cover, the liquid cosmetics in the liquid storage bottle automatically enter the dropper, eliminating the action of squeezing the air bag to absorb the liquid, and the operation is simpler. In addition, the present invention uses a piston instead of a rubber air bag, which solves the problem of rubber air bag aging. The dropper in the device is directly stored in the liquid storage bottle, which avoids the dropper being placed arbitrarily and causing the dropper to be contaminated. In addition, the device has good sealing performance, which prevents the liquid cosmetics in the liquid storage bottle from volatilizing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a cross-sectional view of the automatic liquid aspiration dropper device in a closed state;

[0014] Figure 2 is a cross-sectional view of the automatic liquid aspiration dropper device in an open state;

[0015] Figure 3 is a schematic diagram of the inner cover structure;

[0016] Figure 4 This is a schematic diagram of the inner cover from another perspective;

[0017] Figure 5 This is a schematic diagram of the inner cover from another perspective;

[0018] Figure 6 It is a schematic diagram of the button;

[0019] Figure 7 This is a schematic diagram of the button from another perspective.

[0020] In the figure, the meanings of the various reference numerals are: 1—liquid storage bottle, 2—inner cover, 21—dropper, 22—inner cylinder, 23—outer cylinder, 24—slide groove, 25—clamping groove, 26—clamping portion, 27—connecting portion, 271—opening, 3—outer cover, 4—button, 41—thread, 42—connecting piece, 43—clamping portion, 44—sheet portion, 5—spring, 6—inner plug, 7—piston. DETAILED DESCRIPTION

[0021] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0022] like Figure 1 and Figure 2 As shown, the automatic liquid suction dropper device of the present invention comprises a liquid storage bottle 1 and a cover body, wherein the cover body comprises an inner cover 2, an outer cover 3, a button 4 and a piston 7, wherein the inner cover 2 is fixedly connected to the inside of the outer cover 3, a dropper 21 is formed on the inner cover 2, the button 4 is slidably connected to the inner cover 2, and a spring 5 is provided between the button 4 and the inner cover 2, one end of the piston 7 is connected to the button 4, and the piston 7 is in the inner cover 2, and the piston 7 can be displaced in the inner cover 2, and the piston 7 is above the dropper 21, when the automatic liquid suction dropper device is in a closed state, the dropper 21 is inserted into the liquid storage bottle 1, the button 4 is threadedly connected to the bottle mouth of the liquid storage bottle 1, and the button 4 drives the piston 7 to move downward in the inner cover 2. When the automatic liquid suction dropper device is in an open state, the button 4 is separated from the liquid storage bottle 1, and the spring 5 drives the button 4 to bounce up, so that the piston 7 moves upward in the inner cover 2.

[0023] Specifically, Figures 3 to 7 As shown, the inner cover 2 includes a dropper 21, an inner tube 22 and an outer tube 23, the outer tube 23 is hollow, the inner tube 22 is in the outer tube 23, and the inner tube 22 and the outer tube 23 are connected by a connecting portion 27, the connecting portion 27 is formed with an opening 271, the dropper 21 is below the inner tube 22, and the dropper 21 is connected to the inner tube 22, and the entire inner cover 2 is formed in one piece. The inner side surface of the top surface of the button 4 is provided with a connecting piece 42, one end of the piston 7 is connected to the connecting piece 42, and the piston 7 is in the inner tube 22 of the inner cover 2, and the piston 7 can be displaced in the inner tube 22. The button 4 is formed with a sheet 44, the lower edge of the sheet 44 passes through the opening 271, and the inner wall of the sheet 44 is formed with a thread 41 for threaded connection.

[0024] The outer wall of the button 4 is provided with a snap-fitting portion 43, and the inner wall of the inner cover 2 is provided with a slide groove 24. The snap-fitting portion 43 of the button 4 is limited in the slide groove 24 of the inner cover 2, so that the button 4 can be displaced along the axial direction of the inner cover 2. The outer wall of the inner cover 2 is provided with a snap-fitting groove 25 and a snap-fitting portion 26, and the inner wall of the outer cover 3 is provided with a snap-fitting portion and a snap-fitting groove at positions corresponding to the snap-fitting groove 25 and the snap-fitting portion 26, respectively. Figure 1 , Figure 2 and Figure 7 As shown, the outer periphery of the dropper 21 is covered with an inner plug 6. When the dynamic liquid aspiration dropper device is in a sealed state, the inner plug 6 and the dropper 21 together seal the bottle mouth of the liquid storage bottle 1. Figure 2 As shown, when the automatic liquid pipette device is in the open state, the top edge of the outer cover 3 extends inward to form an extension surface, and the button 4 moves upward under the elastic action of the spring 5 until it abuts against the outer cover 3.

[0025] The working principle of the present invention is as follows: by rotating the outer cover, the thread 41 of the button 4 cooperates with the external thread of the liquid storage bottle 1, so that the button 4 is tightly connected to the liquid storage bottle 1, and the automatic liquid suction dropper device is in a sealed state. At this time, the button 4 gradually slides downward under the limiting action of the clamping portion 43 and the slide groove 24 of the inner cover 2, driving the piston 7 to move downward until the piston 7 is completely moved to the bottom of the inner cylinder 22, so that the liquid in the dropper 21 drips into the liquid storage bottle 1. The outer cover 3 is rotated, and the outer cover 3 drives the inner cover 2 and the button 4 to rotate, so that the button 4 is separated from the liquid storage bottle 1. The button 4 is gradually pushed up by the elastic action of the spring 5 until the button 4 is against the extension surface of the outer cover 3. In this process, the button 4 drives the piston 7 to move upward. In the above process, similar to the working principle of the syringe, the dropper discharges and absorbs the liquid in the liquid storage bottle 1.

[0026] It can be seen from the above description that when the automatic liquid suction dropper device of the present invention is used, after the device is opened by rotating the outer cover, the liquid cosmetics in the liquid storage bottle automatically enter the dropper, eliminating the action of squeezing the airbag to absorb the liquid, and the operation is simpler. In addition, the present invention uses a piston instead of a rubber airbag to solve the problem of rubber airbag aging; the dropper in the device is directly stored in the liquid storage bottle, avoiding the dropper from being randomly placed, causing the dropper to be contaminated, etc. In addition, the device has good sealing performance to prevent the liquid cosmetics in the liquid storage bottle from volatilizing.

[0027] Of course, the above are only typical examples of the present invention. In addition, the present invention may also have many other specific implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. An automatic liquid suction dropper device, comprising a liquid storage bottle and a cover body, characterized in that: The cover body includes an inner cover, a button and a piston. A dropper is arranged on the inner cover. The button is slidably connected to the inner cover, and a spring is arranged between the button and the inner cover. One end of the piston is connected to the button. The piston is in the inner cover, and the button can drive the piston to move in the inner cover, and the piston is above the dropper. When the automatic liquid suction dropper device is in a closed state, the dropper is inserted into the liquid storage bottle, and the button and the bottle mouth of the liquid storage bottle are fixedly connected in a detachable manner; when the automatic liquid suction dropper device is in an open state, the button and the liquid storage bottle are separated. The spring drives the button to pop up, so that the piston moves upward in the inner cover; the inner cover comprises a dropper, an inner tube and an outer tube, the outer tube is hollow, the inner tube is in the outer tube, and the inner tube and the outer tube are connected by a connecting part, the piston is in the inner tube, the dropper is below the inner tube, and the dropper is connected to the inner tube, an opening is provided on the connecting part of the inner cover, a sheet portion is formed on the button, the lower edge of the sheet portion passes through the opening, and a thread for threaded connection with the bottle mouth of the liquid storage bottle is formed on the inner wall of the inner cover, and the inner cover is a The button is formed into a body, the outer wall of the button is provided with a clamping part, the inner wall of the inner cover is provided with a sliding groove, the clamping part of the button is limited to be located in the sliding groove of the inner cover, or the outer wall of the button is provided with a sliding groove, the inner wall of the inner cover is provided with a clamping part, the clamping part of the inner cover is limited to be located in the sliding groove of the button, so that the button can be displaced along the axial direction of the inner cover, and an outer cover is provided, the inner cover is fixedly connected to the inner part of the outer cover, and the outer periphery of the dropper is covered with an inner plug. When the liquid suction dropper device is in a sealed state, the inner plug and the dropper jointly seal the bottle mouth of the liquid storage bottle, and the outer cover is rotated to release the button. The thread of the button cooperates with the external thread of the liquid storage bottle, so that the button is tightly connected to the liquid storage bottle, and the automatic liquid suction dropper device is in a sealed state. At this time, the button gradually slides downward under the limiting action of the clamping part and the slide groove of the inner cover, driving the piston to move downward until the piston is completely moved to the bottom of the inner cylinder, so that the liquid in the dropper drips into the liquid storage bottle, and the outer cover is rotated, and the outer cover drives the inner cover and the button to rotate, so that the button is separated from the liquid storage bottle, and the button is gradually pushed up under the elastic action of the spring until the button is against the extension surface of the outer cover. In this process, the button drives the piston to move upward.

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