CN106829177A - A lotion pump capable of sucking back lotion - Google Patents

Abstract

The invention discloses an emulsion pump capable of sucking back emulsion, which comprises pump heads, a body and a suction pipe which are connected with each other, wherein an output pipe, a piston and an elastic limiting mechanism are arranged in the body; the piston is provided with a lantern ring which is sleeved with the pipe orifice of the output pipe; the pipe orifice of the output pipe is a convex pipe, and the diameter of the convex pipe is smaller than that of the output pipe, so that a resorption cavity is formed between the outer edge of the convex pipe and the inner wall of the lantern ring; the pipe valve is matched with the piston to open or close the pipe orifice; when the output pipe is pressed down by the pump head, the piston is pushed to move downwards, and the pipe valve opens the pipe orifice of the output pipe; when the output pipe rises, the pipe valve closes the pipe orifice of the output pipe, drives the piston to rise again, opens the suck-back cavity and accommodates the suck-back emulsion. The emulsion pump of the invention enables the emulsion remained in the pump head to be sucked back and contained in the suck-back cavity, thus solving the problem of waste or pollution caused by the emulsion remained on the pump head after the liquid of the traditional emulsion pump is discharged.

Description

A lotion pump capable of sucking back lotion

technical field

The invention relates to a lotion pump, in particular to a lotion pump capable of reabsorbing lotion.

Background technique

After the traditional lotion is pumped out, the pump head retains the lotion, and the lotion is easily polluted or touched by the outside world, and even drips easily when it is still, causing waste or getting wet and soiling the bearing surface. If the lotion pump is filled with oil and other For liquids, its defects are more obvious, so there are new problems for the improvement of lotion pumps.

Contents of the invention

The purpose of the present invention is to provide an emulsion pump capable of sucking back the emulsion, which can effectively solve the problem that after the traditional emulsion is pumped out, the pump head retains the emulsion, which causes the emulsion to be easily polluted or touched by the outside world, and even drips easily when it is still. Falling, causing waste or getting wet and dirty bearing surface, polluting the environment and other issues.

Provide in order to achieve the above object, technical scheme of the present invention:

A lotion pump capable of back-absorbing lotion, comprising a pump head, a body and a suction tube connected to each other, the body is provided with an output pipe, a piston and an elastic limit mechanism, one end of the output pipe is connected to the pump head, and the other end is connected to the pump head. The piston is socketed, and under the action of the elastic limit mechanism, it moves up and down in the body; the piston is provided with a collar socketed with the mouth of the output pipe; the mouth of the output pipe is a convex pipe, and the convex pipe The diameter of the output pipe is less than that of the output pipe, so that a suction chamber is formed between the outer edge of the convex pipe and the inner wall of the collar; it also includes a pipe valve that cooperates with the piston to open or close the nozzle; when the output pipe is pressed down by the pump head, push The piston moves downwards, allowing the pipe valve to open the nozzle of the output pipe; when the outlet pipe rises, the pipe valve closes the nozzle of the outlet pipe, and drives the piston to rise back, opening the suction chamber to accommodate the suction emulsion.

Compared with the prior art, a kind of emulsion pump capable of back-absorbing emulsion of the present invention is provided with a collar on the piston that is socketed with the mouth of the outlet pipe, and the nozzle of the outlet pipe is set to have a diameter less than that of the outlet pipe. The convex pipe forms a suction cavity between the outer edge of the convex pipe and the inner wall of the collar, and a pipe valve that can open and close the mouth of the pipe is provided between the convex pipe and the piston. When the user uses the lotion pump, press down on the pump head to push the output pipe to move the piston downward, so that the pipe valve opens the outlet of the output pipe; when the output pipe rises up under the action of the elastic limit mechanism, the pipe valve closes the output pipe At this time, due to the structure in the lotion pump and the action of the back-suction airflow, the emulsion remaining in the pump head is sucked back into the back-suction chamber through the output tube Inside, it accommodates the residual emulsion, so as to solve the problem that the residual emulsion in the pump head is easily polluted or touched by the outside after the liquid is pumped out by the traditional emulsion pump, and it is easy to drip and cause waste or pollution when it is still, effectively ensuring the installation of the emulsion pump The sanitation of the environment in which the carrier is located, and the safety of the use environment.

Further, the pipe valve is socketed with the convex pipe, including a plug and a valve cover, and the valve cover is fastened to the bottom of the piston; the plug is a flat cylinder, and hooks are provided on both sides of the top; The inner wall of the convex pipe is provided with an inner convex edge which is fastened with the hook, so that the pipe valve is fixedly connected with the convex pipe through the inserting post. On the one hand, the post is a flat cylinder, so that after the pipe valve is opened, the emulsion can enter the output pipe from both sides of the flat post and spray out to the outside; In the suction chamber; on the other hand, the pipe valve is tightly fixed on the convex pipe through the buckle on the inner wall of the convex pipe and the buckle on the top of the post to realize linkage with the output pipe.

Still further, the piston is provided with a through hole for socketing the post and the convex tube, and the bottom opening of the through hole is provided with a protruding ring extending downward; the edge of the valve cover is provided with an upwardly tilted flange , and fastened with the protruding ring through the flanging. When the output pipe is pressed down by the pump head, the piston is pushed downward, and the pipe valve protrudes from the piston, so that the valve cover is separated from the protruding ring of the piston, and the nozzle of the output pipe is opened; The flanging and the protruding ring of the piston are interlocked to close the nozzle, thereby effectively controlling the opening and closing of the output pipe.

To further limit the scope of movement of the back-absorbed emulsion, a sealing ring that conflicts with the protruding ring is provided at the connection between the lower end of the insert and the valve cover, so as to strengthen the sealing effect between the pipe valve and the piston, and close the nozzle.

Furthermore, the sealing ring gradually expands from top to bottom to further ensure that the protruding ring of the piston is in close contact with the contact surface of the sealing ring, and the nozzle is blocked from the bottom so that the sucked-back emulsion can only flow back upwards.

On the basis of the above, an inner convex ring is provided on the top of the collar of the piston, and the inner convex ring is in close contact with the pipe wall of the output pipe. The inner convex ring on the top of the collar is in close contact with the wall of the output pipe, thereby blocking the opening at the top, so that the sucked-back emulsion can only flow back into the sucked-back cavity, further controlling the range of activities of the sucked-back emulsion and limiting the sucked-back The emulsion flows back into the suction chamber.

Further, the bottom of the valve cover is provided with a downwardly extending unloading handle, so that when the pipe valve is damaged, the pipe valve can be disassembled from the output pipe by operating the unloading handle for maintenance or replacement.

To further improve the control of the output emulsion component, the connection between the body and the straw also includes a valve ball and the movable chamber of the valve ball. The upper and lower openings of the movable chamber are smaller than the valve ball, so that the valve ball moves up and down in the movable chamber , to turn the eyedropper on or off. When the user operates the lotion pump and presses down on the pump head, the lotion in the main body is sent out, and the valve ball is at the bottom of the movable chamber to block the suction pipe; when the output pipe rises, under the action of the piston, the valve ball rises to open the mouth of the cavity. The emulsion is pumped into the body through the straw, and when the output pipe stops rising, the valve ball resets to block the straw, thereby effectively controlling the output of the emulsion.

Further improve the elastic limit mechanism, the elastic limit mechanism includes a spring, a fixed sleeve of the spring, and a limit ring on the outer wall of the output pipe, and the fixed sleeve is provided with a limit ring that matches the limit ring. part; when the output tube is pressed down by the pump head, the output tube moves downward until the limit ring collides with the limit part and stops. At this time, the outlet pipe pushes out the pipe valve, so that the bonnet of the pipe valve is separated from the piston, and the mouth of the outlet pipe is opened.

Still further, the spring has an upward extension force, pushing the limit ring to move upward, so that the output pipe rises, and at the same time, the pipe valve drives the piston to move upward, so that the collar is in conflict with the bottom of the fixed sleeve, and the back suction is opened. cavity. The limit ring of the output pipe is pushed back by the extension of the spring to reset. During the reset process of the output pipe, the pipe valve drives the piston to move upward, so that the collar on the piston conflicts with the bottom of the fixed sleeve and stops. Open the suction chamber to allow the emulsion remaining in the pump head to flow back into the suction chamber at the same time, thereby effectively sucking back and storing the residual emulsion.

Description of drawings

Fig. 1 is an exploded view of a lotion pump of the present invention which can suck back the lotion;

Fig. 2 is the cross-sectional view of the lotion pump of the present invention in a static state;

Fig. 3 is a cross-sectional view of the lotion pump of the present invention being pressed and in a liquid spraying state;

Fig. 4 is a sectional view of the partial structure of the emulsion pump of the present invention when it is reset and in the state of sucking back the emulsion;

Fig. 5 is a sectional view of the partial structure of the lotion pump of the present invention being pressed and in the state of spraying liquid;

6 is a sectional view of another angle static state of the lotion pump of the present invention;

Fig. 7 is a cross-sectional view of the lotion pump of the present invention being pressed at another angle and in a state of spraying liquid.

Fig. 8 is a structural view of the pipe valve of the lotion pump of the present invention;

Fig. 9 is a piston structure view 1 of the lotion pump of the present invention;

Fig. 10 is a view 2 of the piston structure of the lotion pump of the present invention.

detailed description

A lotion pump capable of reabsorbing lotion according to the present invention is described in conjunction with the accompanying drawings.

As shown in Figures 1 to 3, the lotion pump includes a pump head 1, a body 2 and a suction pipe 3 that are connected to each other. The body 1 is provided with an output tube 4, a piston 5 and an elastic limit mechanism 6. The output tube 4. One end is connected with the pump head 1, and the other end is socketed with the piston 5, and moves up and down in the body 2 under the action of the elastic limit mechanism 6; the piston 5 is provided with a sleeve socketed with the outlet pipe 4 Ring 51; the mouth of the output pipe 4 is a convex pipe 41, and the diameter of the convex pipe 41 is less than the output pipe 4, so that the suction cavity 7 is formed between the outer edge of the convex pipe 4 and the inner wall of the collar 51; also includes Cooperate with the piston 5 to open or close the pipe valve 8 of the nozzle; when the output pipe 4 is pressed down by the pump head 1, push the piston 5 to move downward, so that the pipe valve 8 opens the nozzle of the output pipe 4; when the output pipe 4 rises At this time, the pipe valve 8 closes the mouth of the output pipe 4, and drives the piston 5 to rise, opens the suction chamber 7, and accommodates the suction emulsion.

Wherein, as shown in Figures 4 to 8, the pipe valve 8 is socketed with the convex pipe 41, including a plug 81 and a valve cover 82, and the valve cover 82 is fastened to the bottom of the piston 5; the plug 81 is flat The two sides of the top are provided with hooks 811; the inner wall of the protruding tube 41 is provided with an inner convex edge 411 that is buckled with the clasps 811, so that the pipe valve 8 is fixedly connected with the protruding tube 41 through the inserting column 81. On the one hand, the post 81 that is a flat cylinder allows the emulsion to enter the output pipe 4 from both sides of the post 81 and spray out to the outside after the pipe valve 8 is opened; In the suction chamber 7; on the other hand, the inner convex edge 411 of the inner wall of the convex tube 41 is buckled with the buckle 811 on the top of the post 81, so that the tube valve 8 is tightly fixed on the convex tube 41, and the linkage with the output tube 4 is realized. .

In addition, as shown in Figures 6 to 7 and 9, the piston 5 is provided with a through hole 50 for the insertion post 81 and the convex tube 41 to be socketed, and the bottom opening of the through hole 50 is provided with a protruding ring 52 extending downward. ; The edge of the valve cover 82 is provided with an upwardly raised flange 821, and the flange 821 is interlocked with the convex ring 52 through the flange 821. When the output pipe 4 is pressed down by the pump head 1, the piston 5 is pushed downward, and the pipe valve 8 protrudes from the piston 5, so that the valve cover 82 is separated from the protruding ring 52 of the piston 5, and the mouth of the output pipe 4 is opened; When the output pipe 4 rises, the flange 821 of the valve cover 82 and the protruding ring 52 of the piston 5 are engaged with each other to close the nozzle, thereby effectively controlling the opening and closing of the output pipe 4 .

In order to limit the range of activities of sucking back the emulsion and optimize it, as shown in Figures 6 to 8, the joint between the lower end of the insertion post 81 and the valve cover 82 is provided with a sealing ring 812 that conflicts with the protruding ring 52, so as to strengthen the pipe valve The sealing effect between 8 and piston 5 closes the orifice.

Preferably, the sealing ring 812 gradually expands from top to bottom to further ensure that the protruding ring 52 of the piston 5 is in close contact with the contact surface of the sealing ring 812, and the nozzle is blocked from the bottom so that the sucked-back emulsion can only flow back upwards. Achieves a range of emulsion movement that limits suckback from the bottom.

On the basis of the above, as shown in Figures 7 and 10, the top of the collar 51 of the piston 5 is provided with an inner convex ring 510, and the inner convex ring 510 is in close contact with the pipe wall of the output pipe 4, thereby realizing sealing from the top. Block the space of the emulsion that is sucked back, so that the sucked-back emulsion can only flow back into the sucked-back chamber 7, as shown in Figure 4, further controlling the range of activities of the sucked-back emulsion.

Preferably, as shown in Figures 1 and 8, the bottom of the bonnet 82 is provided with a downwardly extending unloading handle 820, so that when the pipe valve 8 is damaged, the pipe valve 8 can be removed from the output pipe 4 by operating the unloading handle 820. Removed for repair or replacement.

In addition, the output emulsion component control is further optimized, as shown in Figures 6 to 7, the connection between the body 2 and the suction pipe 3 also includes a valve ball 9 and an active chamber 90 of the valve ball 9, the active chamber 90 The upper chamber opening 901 and the lower chamber opening 902 are smaller than the valve ball 9 , so that the valve ball 9 moves up and down in the movable chamber 90 to open or close the suction pipe 3 . In actual operation, when the user operates the lotion pump and presses down on the pump head 1, the lotion in the body 2 is sent out, and the valve ball 9 is at the bottom of the movable chamber 90 to block the suction pipe 3; Under the action of the valve ball 9, the valve ball 9 rises, the upper chamber port 901 and the lower chamber port 902 are opened, and the emulsion is drawn into the body 2 from the suction pipe 3. When the output pipe 4 stops rising, the valve ball 9 resets to block the suction pipe 3, and then Effectively control the amount of emulsion output.

The structure of the elastic limiting mechanism 6 is optimized. As shown in FIGS. The fixed sleeve 62 is provided with a limit portion 620 that matches the limit ring 42; when the output tube 4 is pressed down by the pump head 1, the output tube 4 moves downward until the limit ring 42 is in contact with the limit ring 42. Part 620 collides and stops. At this time, the outlet pipe 4 pushes out the pipe valve 8, so that the valve cover 82 of the pipe valve 8 is separated from the piston 5, and the mouth of the outlet pipe 4 is opened.

Preferably, the spring 61 has an upwardly extending force, pushing the limit ring 42 to move upward, so that the output pipe 4 rises, and at the same time, the pipe valve 8 drives the piston 5 to move upward, so that the collar 51 and the bottom of the fixed sleeve 62 Contradictory, open back suction cavity 7. Since the limit ring 42 of the output pipe 4 is pushed back by the extension of the spring 61 and resets, during the reset process of the output pipe 4, the pipe valve 8 drives the piston 5 to move upward, so that the collar 51 on the piston 5 and the fixed sleeve The bottom of 62 collides and stops, and the suction chamber 7 is opened, allowing the emulsion remaining in the pump head 1 to flow back into the suction chamber 7 at the same time, thereby effectively sucking back and storing the residual emulsion.

According to the disclosure and teaching of the above-mentioned specification, those skilled in the art to which the present invention belongs can also make changes and modifications to the above-mentioned embodiment. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims (10)

1. A lotion pump capable of back-absorbing emulsion, comprising a pump head, a body and a suction pipe connected to each other, an output pipe, a piston and an elastic stop mechanism are arranged in the body, one end of the output pipe is connected with the pump head, and another One end is socketed with the piston, and under the action of the elastic limit mechanism, it moves up and down in the body; it is characterized in that the piston is provided with a collar socketed with the nozzle of the output pipe; the nozzle of the output pipe is a convex The diameter of the convex tube is less than that of the output tube, so that a suction cavity is formed between the outer edge of the convex tube and the inner wall of the collar; it also includes a tube valve that cooperates with the piston to open or close the nozzle; when the output tube is pumped by the pump head When pressing down, push the piston down to let the pipe valve open the nozzle of the outlet pipe; when the outlet pipe rises, the pipe valve closes the nozzle of the outlet pipe and drives the piston back up to open the suction chamber to accommodate the suction emulsion. 2. The lotion pump according to claim 1, characterized in that, the pipe valve is socketed with the convex pipe, including a plug and a valve cover, and the valve cover is fastened to the bottom of the piston; the plug is flat The cylinder is provided with hooks on both sides of the top; the inner wall of the protruding tube is provided with an inner convex edge which is fastened with the clasps, so that the pipe valve is fixedly connected with the protruding tube through the inserting column. 3. The lotion pump according to claim 2, characterized in that, the piston is provided with a through hole for inserting the post and the convex tube, and the bottom opening of the through hole is provided with a protruding ring extending downward; The edge of the valve cover is provided with an upwardly tilted flanging, and the flanging is interlocked with the convex ring through the flanging. 4 . The lotion pump according to claim 3 , wherein a sealing ring that interferes with the protruding ring is provided at the joint between the lower end of the insertion post and the valve cover. 5. The lotion pump according to claim 4, characterized in that, the sealing ring gradually expands from top to bottom. 6 . The lotion pump according to claim 5 , wherein an inner protruding ring is provided on the top of the collar of the piston, and the inner protruding ring is in close contact with the pipe wall of the output pipe. 7. The lotion pump according to claim 6, wherein a discharge handle extending downward is provided at the bottom of the valve cover. 8. The lotion pump according to claim 1, characterized in that, the connection between the body and the suction pipe also includes a valve ball and an active chamber of the valve ball, the upper and lower openings of the active chamber are smaller than the valve ball, so that the valve ball Move up and down in the active chamber to open or close the straw. 9. The lotion pump according to claim 1, wherein the elastic limit mechanism includes a spring, a fixed sleeve of the spring, and a limit ring on the outer wall of the output pipe, and the fixed sleeve is provided with a limit ring. Cooperating limiting part; when the output tube is pressed down by the pump head, the output tube moves downward until the limiting ring collides with the limiting part and stops. 10. The lotion pump according to claim 9, characterized in that, the spring has an upwardly extending force, pushing the limit ring to move upward, so that the output pipe rises, and at the same time, the pipe valve drives the piston to move upward, so that the sleeve The ring engages the bottom of the retainer, opening the suction chamber.