CN217674314U - Press pump and container - Google Patents

Abstract

The utility model discloses a solve the problem that the clout was remained to the press head discharge gate that the container field exists, a press pump and container are provided, should include the press head according to the press pump, the pump body, piston and stand, the press head is provided with first discharging channel, the pump body is provided with pump channel, the piston sets up in pump channel, the lateral wall of piston and the inside wall sliding connection of the pump body, the stand is including the last pipeline section that links that connects gradually, big pipeline section, discharging pipe section, little pipeline section and shutoff pipeline section, the press head is connected to the last pipeline section that links, the external diameter of big pipeline section is bigger than the external diameter of little pipeline section, discharging pipe section's lateral wall is provided with feed opening, second discharging channel passes through feed opening intercommunication compression storage cavity, big pipeline section's lateral wall is provided with the upper seal portion, little pipeline section's lateral wall is provided with lower seal portion. The utility model discloses a press the pump, can in time suck back the clout that is in the press head discharge gate, do not cause the material extravagant, also can not the polluted environment.

Description

Press pump and container

Technical Field

The utility model relates to a container field, in particular to press pump and container.

Background

After the discharge is pressed by the pressing pump, excess materials are generally remained at the discharge port of the pressing head, and the excess materials remained at the discharge port can automatically slide out of the discharge port under the action of external forces such as gravity and the like, and drip into the environment, so that the waste of materials is caused, and the environment is polluted.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a press pump can in time the resorption clout that is in the press head discharge gate, does not cause the material extravagant, also can not the polluted environment.

The utility model discloses still provide a container of having above-mentioned press pump.

According to the utility model discloses a press according to press the pump according to first aspect embodiment, including press head, the pump body, piston and stand, the press head is provided with first discharging channel, the pump body is provided with the pump passageway, the piston sets up in the pump passageway, the lateral wall of piston and the inside wall sliding connection of the pump body, the piston will the pump passageway divide into installation passageway and compression storage cavity, the installation passageway is located the top of piston, the compression storage cavity is located the below of piston, the stand is including the last pipeline section, big pipeline section, discharging pipe section, little pipeline section and the shutoff pipeline section of connecting gradually, it connects to go up the pipeline section press the head, the external diameter of big pipeline section is compared the external diameter of little pipeline section is big, go up the pipeline section the pipe chamber of big pipeline section the pipe chamber of discharging pipe section and the pipe chamber of little pipeline communicates in proper order and constitutes second discharging channel, second discharging channel with first discharging channel communicates, the shutoff with little pipeline section does not communicate, the lateral wall of discharging pipe section is provided with feed opening, the second discharging channel communicates, the sealing portion of pushing piston section is provided with the sealed portion of pushing of piston section and sealing off the lateral wall on the piston section is used for the sealed push piston section of the outside the piston section, thereby the lateral wall of pushing away.

According to the utility model discloses press the pump, at least, following technological effect has: set up like this for press the pump to have the resorption function, and through setting up the press the pump that has the resorption function, can effectively in time resorption press the clout of head discharge gate, avoid the material extravagant, prevent the polluted environment.

According to the utility model discloses a some embodiments, the inside wall of the pump body is provided with the locking internal thread, be provided with the locking external screw thread on the upper end lateral wall of stand, the locking internal thread is used for threaded connection the locking external screw thread.

According to the utility model discloses a some embodiments still include the elastic component, the inside wall of the pump body is provided with first butt arch, the lateral wall of stand is provided with the second butt arch, the one end butt of elastic component first butt is protruding, the other end butt of elastic component the second butt is protruding, the second butt is protruding to be located the bellied top of first butt, first butt is protruding second butt is protruding all to be located in the installation passageway.

According to the utility model discloses a some embodiments still include interior barrel, interior barrel sets up in the erection channel, the stand with interior barrel sliding connection, the setting of locking internal thread is in on the inside wall of interior barrel.

According to the utility model discloses a some embodiments still include the valve ball, the valve ball sets up the lower extreme feed inlet in compression storage cavity, the valve ball is used for blockking up the lower extreme feed inlet in compression storage cavity.

According to the utility model discloses a some embodiments still include the enclosing cover, the enclosing cover with the lateral wall of the pump body is connected, the enclosing cover is used for connecting the bottle.

According to some embodiments of the utility model discloses a still include the sealing washer, the sealing washer sets up in the enclosing cover, the sealing washer is used for the butt the bottle.

According to some embodiments of the invention, the length of the small pipe section is not less than 2mm.

According to some embodiments of the present invention, the pump channel is provided with a stop groove on the inner side wall thereof, the stop groove being used for enabling the piston to extend into, thereby blocking the piston from moving up.

According to the utility model discloses container of second aspect embodiment, including bottle and foretell press pump, the pump body is pegged graft the bottle, compression storage cavity with bottle inner chamber intercommunication.

According to the utility model discloses container has following technological effect at least: through setting up the container that has the resorption function, can effectively in time resorption press head discharge gate clout, avoid the material extravagant, prevent the polluted environment.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of the overall assembly of a push pump according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the pressing pump shown in FIG. 1;

FIG. 3 is an enlarged view of the pressing pump shown in FIG. 2 at A;

FIG. 4 is a schematic sectional view of the pressing pump of FIG. 3 when the plunger moves upward;

FIG. 5 is a schematic sectional view of the plunger of FIG. 4 moving upward;

fig. 6 is a schematic cross-sectional view illustrating another embodiment of the suck-back structure of the pressing pump according to the present invention.

Reference numerals:

the pump body 100, the pump channel 110, the mounting channel 111, the compression storage cavity 112 and the limiting groove 113;

a piston 200;

a movable sealing mechanism 300;

the device comprises a vertical column 310, an upper connecting pipe section 311, a large pipe section 312, a discharge pipe section 313, a small pipe section 314, a plugging pipe section 315, a first limiting bulge 316, a feeding opening 317, a locking external thread 318 and a second abutting bulge 319;

a second outlet channel 320;

an upper seal part 330, a lower seal part 340, a lower pushing part 350, and an upper pushing part 360;

an elastic member 370;

a suck-back space 400;

the pressing head 500 and the first discharging channel 510;

an inner cylinder 600, a locking internal thread 610, a first abutting projection 620;

a valve ball 700;

an outer cover 800;

and a seal ring 900.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the directions or positional relationships referred to in the description of the directions, such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "tip", "inner", "outer", "axial", "radial", "circumferential", etc., are the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, should not be construed as limiting the present invention. In the description of the present invention, the side wall means the left side wall and/or the right side wall.

In the description of the present invention, "a plurality" means two or more, "more than", "less than", "more than" and the like are understood as excluding the number, "more than", "below", "within" and the like are understood as including the number. If the description of "first" and "second" is used for the purpose of distinguishing technical features, the description is not intended to indicate or imply relative importance or to implicitly indicate the number of the indicated technical features or to implicitly indicate the precedence of the indicated technical features.

In the description of the present invention, it is to be understood that "a is provided on B" and "a is provided on B" express a connection relationship or a positional relationship between a and B, and do not mean that a is necessarily above B.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, a movable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. "bolted" and "screwed" are equally interchangeable. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation. It should be understood that the similar features in the present invention are only distinguished by different prefixes, and therefore, in the present invention, the combination of similar features in this category is expressed by the feature name without a prefix (or the feature name with a partial prefix).

Referring to fig. 1 to 6, the suck-back structure according to the embodiment of the present invention is used for suck back the remainder at the discharge port of the first discharge channel 510 of the pressing head 500 when the pressing head 500 of the pressing pump moves upward relative to the pump body 100 of the pressing pump, and includes the pump body 100, the piston 200 and the movable sealing mechanism 300, the pump body 100 is provided with the pump channel 110, the piston 200 is slidably connected in the pump channel 110, the piston 200 divides the pump channel 110 into the installation channel 111 and the compressed storage cavity 112, the installation channel 111 is located above the piston 200, the compressed storage cavity 112 is located below the piston 200 (the compressed storage cavity 112 is used for storing materials), the movable sealing mechanism 300 includes a discharge assembly, an upper sealing portion 330, a lower sealing portion 340 and a lower moving portion 350, the discharge assembly is used for connecting the pressing head 500, the discharge assembly is provided with the second discharge channel 320, the second discharging channel 320 is used for being communicated with the first discharging channel 510, the discharging assembly is connected in the mounting channel 111 in a sliding manner, the discharging assembly is connected with the upper sealing part 330, the discharging assembly is connected with the lower sealing part 340, the lower sealing part 340 is closer to the axis of the pump channel 110 than the upper sealing part 330, the upper sealing part 330 is positioned above the lower sealing part 340, the lower pushing part 350 is positioned below the lower sealing part 340, the discharging assembly or the lower sealing part 340 is connected with the lower pushing part 350, the upper sealing part 330 is used for always abutting against the piston 200, so that the second discharging channel 320 is isolated from the outside, the lower sealing part 340 is used for approaching (and abutting against) the piston 200, so that the second discharging channel 320 is isolated from the compression storage cavity 112, and the lower pushing part 350 is used for abutting against and pushing the piston 200 to move upwards (so that the space of the compression storage cavity 112) is enlarged; when the lower sealing part 340 is abutted against the piston 200, a suck-back space 400 is formed among the upper sealing part 330, the lower sealing part 340 and the piston 200, the suck-back space 400 is communicated with the second discharging channel 320, and the suck-back space 400 is isolated from the compression storage cavity 112; when the movable sealing mechanism 300 moves upward, the lower sealing portion 340 abuts against the piston 200, and when the movable sealing mechanism 300 continues to move upward, the suck-back space 400 is expanded, and the excess material is sucked back.

In this embodiment, when discharging by pressing, a human hand presses the pressing head 500, so that the pressing head 500 and the pillar 310 move downward, the compression spring (the elastic member 370) and the pillar 310 move downward (the upper pushing portion) push the piston 200 to move downward, so that the compression storage cavity 112 below the piston 200 is compressed, the space is reduced, the valve ball 700 below the compression storage cavity 112 is pressed downward (by pressure and gravity) to block the lower outlet of the compression storage cavity 112 (when the pillar 310 moves downward to a certain extent, the blocking pipe section 315 at the lower end of the pillar 310 will abut against the inner side wall of the pump body 100, so as to block the lower outlet of the compression storage cavity 112), so that the material in the compression storage cavity 112 enters the second discharging channel 320 of the pillar 310 from the upper outlet of the compression storage cavity 112 (at this time, the piston 200 is at the upper end position of the pillar 310 relative to the pillar 310, the lower sealing portion 340 is far away from the piston 200, so that the feeding opening 317 of the pillar 310 is in an open state), then enters the first discharging channel 510 of the pressing head 500, and finally flows out from the discharging port of the first discharging channel 510;

when the pressing head 500 is released, the spring rebounds to drive the pressing head 500 and the upright post 310 to move upwards (the piston 200 does not move), and at the beginning, when the upright post 310 moves upwards, the lower sealing part 340 of the upright post 310 abuts against the piston 200, and the upper sealing part 330 of the upright post 310 always abuts against the piston 200, so that the suck-back space 400 (among the upper sealing part 330, the lower sealing part 340 and the piston 200) is isolated from the compression storage cavity 112, and the suck-back space 400 is communicated with the second discharge channel 320;

the upright post 310 continues to move upwards (the piston 200 is not moved), the lower sealing part 340 of the upright post 310 is far away from the feeding opening 317 of the piston 200 (or the piston 200 moves downwards relative to the upright post 310, so that the position where the piston 200 is in abutting contact with the lower sealing part 340 is far away from the second discharging channel 320), so that the suck-back space 400 is enlarged, and the suck-back space 400 sucks the material from the second discharging channel 320 and the second discharging channel 320 sucks the material from the first discharging channel 510 due to the isolation of the suck-back space 400 from the compression storage cavity 112, so that the residual material at the outlet of the first discharging channel 510 can be sucked back;

the pillar 310 continues to move upward, and finally the lower pushing portion 350 on the pillar 310 abuts against the piston 200, so as to drive the piston 200 to move upward together, so that the space of the compression storage cavity 112 below the piston 200 is enlarged, and since the suck-back space 400 (the second discharging channel 320) is isolated from the compression storage cavity 112, the compression storage cavity 112 will suck the supplementary material from the container bottle below the compression storage cavity (at this time, the valve ball 700 will be pushed up and the opening below the compression storage cavity 112 will be released due to the effect of the pressure difference), and the next pressing is waited.

To facilitate understanding of the enlargement of the suck-back space 400, it can be assumed that the movable sealing mechanism 300 does not move, but the piston 200 moves (actually, the piston 200 does not move, and the movable sealing mechanism 300 moves); since the lower seal portion 340 is closer to the axial center of the pump passage 110 than the upper seal portion 330, the suck-back space 400 is enlarged when the piston 200 moves downward (actually, when the movable seal mechanism 300 moves upward). To further understand the principle of the expansion of the suck-back space 400, the upper sealing portion 330 can be roughly regarded as a large-diameter pipe section, the lower sealing portion 340 can be regarded as a small-diameter pipe section (the piston 200 connects the two pipe sections), and the total length of the upper sealing portion 330 and the lower sealing portion 340 (the main pipe section) is constant (i.e. assuming that the movable sealing mechanism 300 does not move), when the piston 200 moves downward, the length corresponding to the large-diameter pipe section increases (or the large-diameter pipe section extends downward and extends), while the length of the small-diameter pipe section decreases, so that the volume of the main pipe section increases, i.e. the suck-back space 400 expands.

It should be understood that mounting channel 111 and compression accumulator chamber 112 are variable spaces and that pump channel 110 is substantially comprised of both. It should be understood that the discharging assembly, the upper sealing portion 330, the lower sealing portion 340, the lower pushing portion 350, etc. may be disposed on the same component or disposed on different components. It is to be understood that the lower push portion 350 may also have a sealing effect when abutting the piston 200; in a general pressing pump, the lower pushing part 350 is usually abutted against the piston 200 to seal and isolate the upper end opening of the compression accumulator chamber 112, so in the general pressing pump, the lower pushing part 350 pushes the piston 200 to move upward almost at the same time of sealing and isolating the upper end opening of the compression accumulator chamber 112, and there is no suck-back function. It should be understood that the lower sealing portion 340 is used to be close to (and abut) the piston 200, so that the second discharge channel 320 is isolated from the compression storage chamber 112, and in general, the lower sealing portion 340 directly abuts against the piston 200, so as to achieve a sealing effect, but in some special cases, for example, when the material is a substance such as a viscous emulsion, and the lower sealing portion 340 is close to the piston 200, and the distance (or gap) between the lower sealing portion 340 and the piston 200 is small, the emulsion is filled in the gap, and can also play a certain role in sealing and isolating; therefore, the lower seal portion 340 may be capable of abutting against the piston 200, and the lower seal portion 340 may be spaced apart from the piston 200 by a slight gap (i.e., the lower seal portion 340 does not abut against the piston 200). It should be understood that, the upper and lower position in the present invention is at least convenient to describe and understand with reference to the drawings, and in practice, the upper and lower position in the description of the present invention is not necessarily arranged, such as a horizontal pressing pump, so that the present invention cannot be used as a limitation.

It should be understood that some existing pressing pumps are also provided with a suck-back structure for sucking back the excess material at the discharge port; however, the existing suck-back structure principle is that when the pump is pressed down, an object extends into the liquid outlet channel by using pressing force, and when the pump is pressed back, the object is drawn out from the liquid outlet channel by using resilience force, so that the purposes of expanding the inner space of the liquid outlet channel and sucking back excess materials are achieved; the pressing pump applying the suck-back principle generally adds an additional structure to achieve the action of extending and extracting a certain object, and the object is of the additional structure, so that the complexity of the whole structure of the pressing pump is increased, and the production cost is increased. In addition, a suck-back structure of the pump is provided, which utilizes the suction force generated when the material storage cavity 112 is compressed and expanded when the pump is pressed to rebound, but the lower part of the material storage cavity 112 is connected with the container bottle body at the moment, and the material in the bottle body can be sucked back to supplement the expanded space, so that the suck-back effect is not good. And this application provides another kind and sets up the design idea according to the structure of pump resorption, the modern design, and the resorption simple structure who designs, the resorption is effectual, conveniently reforms transform design and actual production. It should be understood that, the resorption structure of the present invention mainly utilizes the hysteresis of the piston 200 (or the characteristic that the piston 200 needs other objects to push and move), which is greatly different from the traditional resorption structure, is a novel resorption structure design idea, and has simple structure and good resorption effect; and because the utility model discloses a suck-back structure is different with the suck-back structure transformation direction on the current pump, so the utility model discloses a suck-back structure can combine with the suck-back structure on the current pump, further strengthens the suck-back effect of container.

Referring to fig. 2-6, in some embodiments of the present invention, the lower seal 340 is close to the piston 200, such that the distance between the lower seal 340 and the piston 200 is not greater than 0.5mm when the second channel 320 is isolated from the compression reservoir 112.

Referring to the above, the lower sealing portion 340 and the piston 200 may not be in abutting contact with each other, but the gap between the lower sealing portion 340 and the piston 200 is required to be very small, so that the distance between the lower sealing portion 340 and the piston 200 is not more than 0.5mm, thereby ensuring a normal sealing and isolating effect, and enabling the suck-back function and the function of compressing the material storage chamber 112 to supplement the material to be performed normally.

Referring to fig. 2 to 6, in some embodiments of the present invention, the length of the lower sealing portion 340 is not less than 2mm in the axial direction of the pump passage 110.

In order to ensure the suck-back effect, the extent of the expanded suck-back space 400 needs to be as large as possible, so that the length of the lower sealing part 340 is not less than 2mm along the axial direction of the pump channel 110, so that the obvious suck-back effect can be seen by the expanded extent of the suck-back space 400, and the customer experience is ensured.

Referring to fig. 2 to 5, in some embodiments of the present invention, the movable sealing mechanism 300 further includes an upper pushing portion 360, the discharging component or the upper sealing portion 330 is connected to the upper pushing portion 360, and the upper pushing portion 360 is used for abutting and pushing the piston 200 to move downward (thereby compressing (reducing) the space of the compressed material storage chamber 112).

As described above, when the pressing head 500 is pressed, the pressing head 500 moves down to move the piston 200 down, thereby compressing the compressed material storage chamber 112, and the upper pushing portion 360 is provided to abut against and push the piston 200 down.

Referring to fig. 2 to 5, in some embodiments of the present invention, the movable sealing mechanism 300 includes a column 310, the column 310 includes an upper connecting pipe section 311, a large pipe section 312, a discharging pipe section 313, a small pipe section 314 and a sealing pipe section 315 which are connected in sequence, the upper connecting pipe section 311 is used for connecting a pressing head 500, a lumen of the upper connecting pipe section 311, a lumen of the large pipe section 312, a lumen of the discharging pipe section 313 and a lumen of the small pipe section 314 are connected in sequence and form a second discharging channel 320, the sealing pipe section 315 and the small pipe section 314 are not connected (the sealing pipe section 315 is used for being close to and abutting against a lower end inner wall of the compressed storing cavity 112, so that the compressed storing cavity 112 is isolated from a bottle inner cavity of a container), a side wall of the discharging pipe section 313 is provided with a feeding opening 317, the second discharging channel 320 is connected to the compressed cavity 112 through the feeding opening 317, the upper connecting pipe section 311, the discharging pipe section 313 and the sealing pipe section 315 form a discharging assembly (or the discharging assembly includes the upper connecting pipe section 311, the discharging pipe section 313 and the sealing pipe section 315, or the outer side wall of the sealing pipe section 316 forms a first sealing protrusion 316, and the first lower side wall of the sealing pipe section 316.

It is to be understood that the feed opening 317 may be provided in plurality along the circumference of the discharge tube segment 313. The large pipe section 312 has a smaller diameter than the small pipe section 314, so that the above-mentioned suck-back function can be achieved. It should be understood that, since the piston 200 needs to abut against the small pipe section 314 (the lower sealing portion 340), the inner diameter of the portion of the piston 200 is almost the same as the outer diameter of the small pipe section 314, and the outer diameter of the pipe section 314 of the large pipe section 312 is larger than the outer diameter of the small pipe section 314, when the column 310 moves downwards, the lower end of the large pipe section 312 can abut against the portion of the piston 200, so as to achieve the effect of pushing the piston 200, and therefore, the upper pushing portion 360 (or the lower end of the large pipe section 312 is the upper pushing portion 360) can not be additionally arranged.

Referring to fig. 2 to 5, in some embodiments of the present invention, the movable sealing mechanism 300 further includes an elastic member 370, the elastic member 370 is located in the installation channel 111, one end of the elastic member 370 is connected to the pillar 310, the other end of the elastic member 370 is connected to the pump body 100, and the elastic member 370 is used to drive the pillar 310 to move upwards.

The elastic member 370 is located in the installation passage 111, and the elastic member 370 does not contact with the liquid, thereby preventing the elastic member 370 from being contaminated by the liquid and preventing the liquid from eroding the elastic member 370. The elastic member 370 may be a spring, an elastic plastic member, an elastic sheet, or the like.

Referring to fig. 2 to 5, in some embodiments of the present invention, the discharging assembly includes a main column and a sub-column, the movable sealing mechanism 300 further includes an elastic member 370, the main column is slidably connected in the installation channel 111, the upper end of the main column is used for connecting the pressing head 500, the main column is provided with a second discharging channel 320, the lower end of the main column is connected with an upper sealing portion 330, the sub-column is slidably connected in the installation channel 111, the lower end of the sub-column is connected with a lower sealing portion 340 and a lower pushing portion 350, the elastic member 370 is disposed in the compression storage cavity 112, one end of the elastic member 370 is connected with the lower pushing portion 350, the other end of the elastic member 370 is connected with the pump body 100, the elastic member 370 is used for driving the sub-column to move up (so that the lower sealing portion 340 abuts against the piston 200, and then the piston 200 slides relative to the lower sealing portion 340, and finally the lower pushing portion 350 abuts against and pushes the piston 200 to move up, so that the piston 200 pushes the main column to move up, and further drives the pressing head 500 to move up).

In this embodiment, the elastic member 370 is disposed in the storage chamber 112 and generally includes a valve stem, and the sub-column is connected to the valve stem; the conventional pressing pump can be simply modified into a pressing pump with a suck-back function according to the above principle.

Referring to fig. 2 to 5, in some embodiments of the present invention, a limiting groove 113 is disposed on an inner sidewall of the pump passage 110, and the limiting groove 113 is used to allow the piston 200 to extend into, thereby blocking the piston 200 from moving upward.

When the upright 310 moves upwards, the lower pushing part 350 of the upright 310 abuts against the front of the piston 200, and the lower sealing part 340 of the upright 310 abuts against the piston 200, the lower sealing part 340 of the upright 310 may drive the piston 200 to move upwards together due to friction, so that the suck-back function cannot be well realized; therefore, the inner side wall of the pump passage 110 is provided with the limiting groove 113, when the piston 200 moves downwards, a part of the piston 200 extends into the limiting groove 113, the piston 200 is limited by the limiting groove 113 properly, when the upright post 310 moves upwards, the lower moving part 350 of the upright post 310 abuts against the front of the piston 200, and the lower sealing part 340 of the upright post 310 abuts against the piston 200, the piston 200 is blocked by the limiting groove 113 and cannot move upwards along with the upright post 310 randomly; it should be especially understood that the limit groove 113 does not completely block (limit) the piston 200, but has a certain blocking effect, so that when the lower pushing part 350 abuts and pushes the piston 200 to move upwards, the piston 200 can be pushed out from the limit groove 113 to move upwards normally. Set up spacing recess 113, be favorable to the better realization of resorption function.

Referring to fig. 1 to 5, according to the embodiment of the present invention, the pressing pump includes a pressing head 500 and the above-mentioned suck-back structure, the pressing head 500 is provided with a first discharging channel 510, the pressing head 500 is slidably connected in the installation channel 111, and the first discharging channel 510 is communicated with the second discharging channel 320.

Specifically, the pressing pump comprises a pressing head 500, a pump body 100, a piston 200 and a column 310, wherein the pressing head 500 is provided with a first discharge passage 510, the pump body 100 is provided with a pump passage 110, the piston 200 is arranged in the pump passage 110, the outer side wall of the piston 200 is slidably connected with (or abutted against) the inner side wall of the pump body 100, the piston 200 divides the pump passage 110 into an installation passage 111 and a compression storage cavity 112, the installation passage 111 is positioned above the piston 200, the compression storage cavity 112 is positioned below the piston 200, the column 310 comprises an upper connecting pipe section 311, a large pipe section 312, a discharge pipe section 313, a small pipe section 314 and a plugging pipe section 315 which are sequentially connected, the upper connecting pipe section 311 is connected with the pressing head 500, the outer diameter of the large pipe section 312 is larger than the outer diameter of the small pipe section 314, the tube cavity of the upper connecting tube section 311, the tube cavity of the large tube section 312, the tube cavity of the discharge tube section 313 and the tube cavity of the small tube section 314 are sequentially communicated and form a second discharge channel 320, the second discharge channel 320 is communicated with the first discharge channel 510, the blocking tube section 315 is not communicated with the small tube section 314, the side wall of the discharge tube section 313 is provided with a feed opening 317, the second discharge channel 320 is communicated with the compression storage cavity 112 through the feed opening 317, the outer side wall of the large tube section 312 is provided with an upper sealing part 330, the inner side wall of the piston 200 is slidably connected with (or abutted against) the upper sealing part 330, the outer side wall of the small tube section 314 is provided with a lower sealing part 340, the lower sealing part 340 is used for being close to the piston 200, so that the second discharge channel 320 is isolated from the compression storage cavity 112, the outer side wall of the blocking tube section 315 is provided with a lower pushing part 350 which is protruded outwards, and the lower pushing part 350 is used for abutting against and pushing the piston 200 to move upwards.

According to the above, the pressing pump has the suck-back function, and the excess material at the discharge port of the pressing head 500 can be effectively and timely sucked back through the pressing pump with the suck-back function, so that the material waste is avoided, and the environment pollution is prevented.

Referring to fig. 2, in some embodiments of the present invention, the inner sidewall of the pump body 100 (or the sidewall of the pump channel 110) is provided with a locking internal thread 610, the upper outer sidewall of the pillar 310 is provided with a locking external thread 318, and the locking internal thread 610 is used for screwing the locking external thread 318.

Locking external threads 318 are typically provided on the outside wall of the upper pipe segment 311 or the large pipe segment 312, and it is also possible that the column 310 is provided with additional extensions to provide the locking external threads 318, as in the present embodiment. Through setting up like this for press head 500, stand 310 can be screw thread locking when storage, transportation, thereby can not press again, prevent that unexpected collision from pressing the ejection of compact.

Referring to fig. 2, in some embodiments of the present invention, the elastic member 370 is further included, the inner side wall of the pump body 100 is provided with a first abutting protrusion 620, the outer side wall of the upright post 310 is provided with a second abutting protrusion 319, one end of the elastic member 370 abuts against the first abutting protrusion 620, the other end of the elastic member 370 abuts against the second abutting protrusion 319, the second abutting protrusion 319 is located above the first abutting protrusion 620, and the first abutting protrusion 620 and the second abutting protrusion 319 are both located in the installation channel 111.

The elastic member 370 is located in the installation passage 111, and the elastic member 370 does not contact with the liquid, thereby preventing the elastic member 370 from being contaminated by the liquid and preventing the liquid from eroding the elastic member 370.

Referring to fig. 2, in some embodiments of the present invention, the present invention further includes an inner cylinder 600, the inner cylinder 600 is disposed in the installation channel 111, the upright post 310 is slidably connected to the inner cylinder 600, and the locking internal thread 610 is disposed on the inner sidewall of the inner cylinder 600.

It is to be understood that the first abutment projection 620 is also provided on the inner side wall of the inner carrier 600; therefore, the inner cylinder 600 is provided, the structure of the pump body 100 is simplified, and the assembly of the piston 200 is facilitated.

Referring to fig. 2 and 3, in some embodiments of the present invention, the present invention further includes a valve ball 700, the valve ball 700 is disposed at the lower end feeding port of the compression storage cavity 112, and the valve ball 700 is used to block the lower end feeding port of the compression storage cavity 112.

Through setting up valve ball 700, can compress the break-make of the lower extreme feed inlet of storage cavity 112 through pressure differential automatic control, and valve ball 700 is globular, and the leakproofness is better.

Referring to fig. 1 and 2, in some embodiments of the present invention, an outer cap 800 is further included, the outer cap 800 is connected to the outer sidewall of the pump body 100, and the outer cap 800 is used to connect the bottle body.

In this embodiment, the outer cap 800 is provided with an internal thread to be screw-coupled with the bottle mouth of the bottle body.

Referring to fig. 2, in some embodiments of the present invention, a sealing ring 900 is further included, the sealing ring 900 being disposed inside the outer cap 800, the sealing ring 900 being used to abut against the bottle body.

The sealing ring 900 abuts against the bottle mouth of the bottle body, so that the sealing performance of the inner cavity of the bottle body and the outside is improved, and the material loss is prevented.

Referring to fig. 2-5, in some embodiments of the present invention, the length of the small pipe section 314 (in the axial direction of the small pipe section 314) is not less than 2mm.

In order to ensure the suck-back effect and create a sufficient suck-back space 400, it is necessary to ensure that when the piston 200 moves downward relative to the pillar 310, the piston 200 moves a sufficient distance further up the lower sealing portion 340, so that the length of the small pipe section 314 is set to be not less than 2mm.

Referring to fig. 1, according to an embodiment of the present invention, the container includes a bottle body and the above-mentioned pressing pump, the pump body 100 is inserted into the bottle body, and the lower end of the compression storage cavity 112 is connected to the inner cavity of the bottle body, and the bottle body is used for storing materials.

Through setting up the container that has the resorption function, can effectively in time resorption clout of press head 500 discharge gates, avoid the material extravagant, prevent the polluted environment.

Referring to fig. 2 to 5, the suck-back method according to the embodiment of the present invention includes the following steps: a sealing step, in which the upright 310 (or the movable sealing mechanism 300) moves upwards, so that the lower sealing part 340 of the upright 310 abuts against the piston 200, and the upper sealing part 330 of the upright 310 always abuts against the piston 200, so that the suck-back space 400 is isolated from the compression storage chamber 112; in the suck-back step, the pillar 310 moves upward continuously, and the piston 200 is not moved, so that the suck-back space 400 is enlarged, and the excess material at the discharge hole of the pressing head 500 is sucked back.

Compare traditional resorption method, the utility model discloses a resorption method utilizes when stand 310 shifts up, behind the sealed feed opening 317 of piston 200, lets piston 200 motionless, stand 310 continue to move up to enlarge the principle in resorption space 400 and carry out the resorption, the design is novel, and the principle is simple and clear, and the resorption effect is obvious, is convenient for use on various pump bodies 100, container.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. A push pump, comprising:

the pressing head is provided with a first discharging channel;

a pump body provided with a pump passage;

the piston is arranged in the pump channel, the outer side wall of the piston is connected with the inner side wall of the pump body in a sliding mode, the piston divides the pump channel into an installation channel and a compression storage cavity, the installation channel is located above the piston, and the compression storage cavity is located below the piston;

the upright column comprises an upper connecting pipe section, a large pipe section, a discharge pipe section, a small pipe section and a plugging pipe section which are sequentially connected, wherein the upper connecting pipe section is connected with the press head, the outer diameter of the large pipe section is larger than that of the small pipe section, a pipe cavity of the upper connecting pipe section, a pipe cavity of the large pipe section, a pipe cavity of the discharge pipe section and a pipe cavity of the small pipe section are sequentially communicated to form a second discharge channel, the second discharge channel is communicated with the first discharge channel, the plugging pipe section is not communicated with the small pipe section, a feed opening is formed in the side wall of the discharge pipe section, the second discharge channel is communicated with the compression storage cavity through the feed opening, an upper sealing part is arranged on the outer side wall of the large pipe section, the inner side wall of the piston is slidably connected with the upper sealing part, a lower sealing part is arranged on the outer side wall of the small pipe section, the lower sealing part is used for being close to the piston, so that the second discharge channel is isolated from the compression storage cavity, a lower pushing part is protruded outwards on the outer side wall of the plugging pipe section and is used for pushing the piston to move upwards.

2. The pressing pump according to claim 1, wherein the pump body has an inner locking thread on an inner side wall thereof, and the column has an outer locking thread on an outer side wall of an upper end thereof, the inner locking thread being for threaded connection with the outer locking thread.

3. The pressing pump according to claim 1, further comprising an elastic member, wherein a first abutting protrusion is provided on an inner side wall of the pump body, a second abutting protrusion is provided on an outer side wall of the pillar, one end of the elastic member abuts against the first abutting protrusion, the other end of the elastic member abuts against the second abutting protrusion, the second abutting protrusion is located above the first abutting protrusion, and the first abutting protrusion and the second abutting protrusion are located in the installation channel.

4. The pressing pump as claimed in claim 2, further comprising an inner cylinder disposed in the installation channel, wherein the column is slidably connected to the inner cylinder, and the locking female screw is disposed on an inner sidewall of the inner cylinder.

5. The pressing pump as recited in claim 1, further comprising a valve ball disposed at the lower inlet of the compression storage chamber, wherein the valve ball is used for blocking the lower inlet of the compression storage chamber.

6. The pump according to claim 1, further comprising an outer cap coupled to an outer sidewall of the pump body, the outer cap being adapted to be coupled to a bottle body.

7. The pump as recited in claim 6, further comprising a sealing ring disposed within the outer cap, the sealing ring configured to abut the bottle body.

8. The compression pump of claim 1, wherein the length of the small tube segment is no less than 2mm.

9. The pressing pump as claimed in claim 1, wherein a stopper groove is provided on an inner side wall of the pump passage, the stopper groove being adapted to allow the piston to be inserted therein, thereby blocking the piston from moving upward.

10. A container, comprising:

a push pump according to any one of claims 1 to 9;

the bottle, the pump body is pegged graft the bottle, the compression storage cavity with the bottle inner chamber intercommunication.

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