CN217049761U - Main column assembly of emulsion pump - Google Patents
Main column assembly of emulsion pump Download PDFInfo
- Publication number
- CN217049761U CN217049761U CN202220942011.1U CN202220942011U CN217049761U CN 217049761 U CN217049761 U CN 217049761U CN 202220942011 U CN202220942011 U CN 202220942011U CN 217049761 U CN217049761 U CN 217049761U
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- Prior art keywords
- annular
- side wall
- main column
- column
- flow channel
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- 239000000839 emulsion Substances 0.000 title claims abstract description 45
- 230000006835 compression Effects 0.000 claims abstract description 44
- 238000007906 compression Methods 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 26
- 238000004806 packaging method and process Methods 0.000 description 15
- 239000006210 lotion Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1001—Piston pumps
- B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1043—Sealing or attachment arrangements between pump and container
- B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
- B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1073—Springs
- B05B11/1074—Springs located outside pump chambers
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- Reciprocating Pumps (AREA)
Abstract
The utility model relates to a main column component of an emulsion pump, which comprises a main column, a piston, an auxiliary column, a compression spring and a lock cover, wherein the upper end of the auxiliary column is connected with the main column; the lock cover is sleeved on the main column, and the inner side wall of the lock cover is in close contact with the outer side wall of the main column; the compression spring is sleeved on the upper section of the main column, the upper end of the compression spring is contacted with the upper end of the main column, and the lower end of the compression spring is contacted with the upper end of the lock cover; the upper section of the secondary column is positioned in the first flow channel, and the outer side wall of the upper section of the secondary column is tightly contacted with the inner side wall of the first flow channel; an upper annular limiting groove with an upward opening is defined by the upper section of the outer ring, the annular connecting part and the upper section of the inner ring, and the lower end of the main column is positioned in the upper annular limiting groove. The utility model discloses structural connection is inseparable, can improve the sealing performance between each subassembly, and the phenomenon that can effectively prevent the weeping takes place.
Description
Technical Field
The utility model relates to a liquid outlet component of cosmetic and bath articles, in particular to a king post component of emulsion pump.
Background
Emulsion pumps on the market generally comprise a press head, a lock cover, an outer cover, a pump body, a piston assembly and a compression spring; the side wall of the inner cavity of the lock cover is provided with inner threads, the lock cover is arranged at the upper end of the pump body, and the outer cover can be rotatably sleeved on the outer side of the lock cover; a liquid inlet is formed in the bottom of the pump body, and a first check valve is arranged at the liquid inlet; the piston assembly and the compression spring are arranged in the pump body, the piston assembly comprises a main column, a piston and an auxiliary column, the upper end of the auxiliary column is connected with the lower end of the main column, the press head is connected with the upper end of the main column, a first flow channel which runs up and down is arranged in the auxiliary column, a second flow channel which runs up and down is arranged in the main column, a third flow channel is arranged in the press head, the first flow channel, the second flow channel and the third flow channel are sequentially communicated, and a second check valve is arranged at the top of the second flow channel; the piston is annular and sleeved on the main column, the inner side wall of the piston is tightly contacted with the outer side wall of the main column, and the outer side wall of the piston is tightly contacted with the inner side wall of the pump body; the outer side wall of the main column is provided with a limiting ring, the lower side surface of the limiting ring is provided with an annular groove with a downward opening, and the upper end of the piston is matched with the annular groove (when the piston ascends relative to the main column, the upper end of the piston can be embedded into the annular groove); the upper end of the compression spring is in contact with the auxiliary column, and the lower end of the compression spring is in contact with the pump body (the compression spring can apply upward acting force to the auxiliary column to enable the auxiliary column, the main column and the piston to ascend and reset). The second check valve comprises a second glass ball and a second valve seat formed at the top of the main column, the second valve seat is provided with a second truncated cone-shaped cavity (the bottom of the second truncated cone-shaped cavity is communicated with the second flow passage, and the top of the second truncated cone-shaped cavity is communicated with the third flow passage), and the second glass ball is positioned in the second truncated cone-shaped cavity.
Among the above-mentioned emulsion pump, vice post is too simple with compression spring's cooperation among the piston assembly, uses the back for a long time at the emulsion pump, compression spring's elastic effect variation for vice post can not be fine resets, easily leads to the sealed effect variation between piston and the principal post, and the cooperation between principal post and the vice post is inseparable enough, and the phenomenon of weeping appears easily takes place, can not satisfy user's demand.
Disclosure of Invention
The utility model aims to solve the problem that a king post subassembly of emulsion pump is provided, the king post subassembly structural connection of this kind of emulsion pump is inseparable, can improve the sealing performance between each subassembly, can effectively prevent the phenomenon emergence of weeping.
In order to solve the technical problem, the utility model discloses a technical scheme as follows:
a main column assembly of an emulsion pump comprises a main column, a piston, an auxiliary column and a compression spring, wherein the upper end of the auxiliary column is connected with the main column, a first flow passage which moves up and down is arranged in the main column, a second flow passage is arranged in the auxiliary column, and the second flow passage is communicated with the first flow passage; the lower end of the auxiliary column is provided with at least one liquid inlet hole which is communicated with the second flow channel; the piston comprises an outer ring, an annular connecting part and an inner ring, the outer ring, the annular connecting part and the inner ring are integrally manufactured, the inner ring is sleeved on the auxiliary column, and the inner side wall of the inner ring is in close contact with the outer side wall of the auxiliary column; the method is characterized in that: the lock cover is sleeved on the main column, and the inner side wall of the lock cover is in close contact with the outer side wall of the main column; the compression spring is sleeved on the upper section of the main column, the upper end of the compression spring is contacted with the upper end of the main column, and the lower end of the compression spring is contacted with the upper end of the lock cover; the upper section of the secondary column is positioned in the first flow channel, and the outer side wall of the upper section of the secondary column is tightly contacted with the inner side wall of the first flow channel; an upper annular limiting groove with an upward opening is formed by the upper section of the outer ring, the annular connecting portion and the upper section of the inner ring in a surrounding mode, the lower end of the main column is located in the upper annular limiting groove, the upper section of the inner ring is located in the first flow channel, the outer side wall of the upper section of the inner ring is in close contact with the inner side wall of the first flow channel, the lower end of the inner ring is in contact fit with the lower portion of the auxiliary column, and the upper end of the outer ring is in contact fit with the lower end of the locking cover.
The emulsion pump also comprises a press head, a pump body and an outer cover; the side wall of the inner cavity of the outer cover is provided with inner threads, the main column assembly is installed in the inner cavity of the pump body, and the outer cover is rotatably sleeved on the outer side of the locking cover; a liquid inlet is formed in the bottom of the pump body, and a check valve is arranged at the position of the liquid inlet; the press head is provided with a third flow passage, the press head is connected with the upper end of the main column, and the third flow passage is communicated with the first flow passage. The outer cover is used for being connected with the bottle mouth of the packaging bottle, so that the lotion pump is installed on the packaging bottle. The top of the pump body is also provided with an annular gasket, the upper end face of the annular gasket is in close contact with the lower end face of the top of the pump body, and the lower end face of the annular gasket is in close contact with the upper end face of the bottle opening of the packaging bottle, so that the packaging bottle is in sealed fit with the pump body. Of course, the fitting among the above-mentioned press head, pump body, external cover and main column component is not exclusive, and the above-mentioned emulsion pump can also use other structures of press head, pump body and external cover to fit with the above-mentioned main column component according to the actual need.
When a product packaged by the packaging bottle is in an unused state, the outer side wall of the upper section of the auxiliary column is in close contact with the inner side wall of the first flow channel, so that the auxiliary column is in sealing fit with the inner side wall of the first flow channel; the compression spring is in an extension state (the compression force is small); because the press head is connected with the upper end of the main column, the outer side wall of the lock cover is in close contact with the inner side wall of the upper end of the pump body, the inner side wall of the lock cover is in close contact with the outer side wall of the main column, the inner side wall of the inner ring is in close contact with the outer side wall of the auxiliary column, the outer side wall of the upper section of the inner ring is in close contact with the inner side wall of the first flow channel, the outer side wall of the outer ring is in close contact with the inner side wall of the pump body, and the check valve at the bottom of the pump body seals the liquid inlet, so that the pump body cavity above the check valve is in a closed state, and at the moment, no emulsion exists in the second flow channel and the third flow channel.
When the press head is pressed downwards, the press head drives the main column to move downwards, and because the outer side wall of the upper section of the auxiliary column is in close contact with the inner side wall of the first flow channel, the auxiliary column moves downwards along with the press head and the main column, the compression spring is compressed, and the piston does not move downwards simultaneously under the action of external force at the moment; when the main column and the auxiliary column continue to move downwards along the inner side wall of the pump body, the upper end of the outer ring is separated from the lower end of the lock cover, the lower end of the inner ring is separated from the lower part of the auxiliary column, and the liquid inlet hole of the second flow channel is opened, so that the liquid inlet hole is communicated with the cavity of the pump body, and emulsion in the cavity at the lower part of the pump body can smoothly enter the second flow channel; until the main column is pressed down to the piston (the piston is lifted to a high position relative to the auxiliary column), the lower end of the main column is in sealing fit with the bottom of the upper annular limiting groove of the piston, at the moment, the compression spring is compressed continuously, the piston can move down along with the main column, the emulsion in the pump body is pressurized, the emulsion cannot flow into the matching position of the pump body and the lock cover from the outer ring outer side wall of the piston and the inner side wall of the pump body due to the close contact of the outer ring outer side wall of the piston and the inner side wall of the pump body, the emulsion cannot flow into the packaging bottle from the matching position of the outer ring and the pump body, the check valve seals the liquid inlet at the bottom of the pump body due to the pressure of the emulsion (due to the sealing fit between the main column assembly and the pump body), the emulsion cannot flow back into the packaging bottle through the liquid inlet, and the emulsion in the pump body cavity can only flow out from the liquid inlet hole, the second flow passage and the third flow passage in the pressing head in the auxiliary column in sequence.
The pressing head is released, after the pressing force is removed, the main column is acted by the upward resilience force of the compression spring to drive the pressing head and the auxiliary column to move upwards, the outer side wall of the outer ring of the piston is in tight contact (interference seal) with the inner side wall of the pump body, the piston has resistance and keeps static until the lower end of the main column is separated from the bottom of the upper annular limiting groove of the piston, the upper end of the outer ring is in sealing fit with the lower end of the lock cover, the lower end of the inner ring is in sealing fit with the lower part of the auxiliary column (the piston descends to a low position relative to the auxiliary column), and the liquid inlet hole at the lower part of the auxiliary column is closed, so that the liquid inlet hole is separated from the cavity of the pump body, and the negative pressure is generated in the cavity of the pump body; under the action of resilience resetting of the compression spring, the press head, the main column and the auxiliary column can drive the piston to continuously rise and reset, negative pressure is generated in the pump body cavity, the check valve at the bottom of the pump body is opened, and emulsion in the packaging bottle enters the pump body cavity through the liquid inlet.
As the preferred scheme of the utility model, be equipped with first annular step on the inside wall at first flow channel middle part, the up end of vice post is in the below of first annular step and with the lower surface in close contact with of first annular step. Through this kind of setting, can prevent that the secondary column from continuing to slide along the inside wall of first flow channel, guarantee the sealed cooperation of secondary column and main post.
As a further preferred scheme of the utility model, be equipped with the protruding edge of the first annular of at least round on the inside wall at first runner middle part, be equipped with the protruding edge of at least round second annular on the lateral wall of auxiliary column upper segment, the protruding edge of second annular is the same and the one-to-one with the protruding edge of first annular, and the protruding edge of second annular cooperates with the protruding edge joint of corresponding first annular. The auxiliary column upper section is connected with the main column, and the second annular convex edge of the auxiliary column upper section is in one-to-one correspondence with the first annular convex edge in the first flow passage and is in clamping fit with the first annular convex edge in the first flow passage, so that the auxiliary column upper section is fixedly arranged in the first flow passage of the main column, and the auxiliary column moves along with the movement of the main column.
As the preferred scheme of the utility model, be equipped with second annular step on the inside wall of first flow channel lower part, the up end of inner circle be in the below of second annular step and with the lower surface contact cooperation of second annular step. Through the arrangement, the inner ring can be prevented from continuously sliding along the inner side wall of the first flow channel, and the sealing fit of the inner ring and the main column is ensured. When the press head is pressed, the piston rises to a high position relative to the auxiliary column, and the upper end surface of the inner ring is in sealing fit with the second annular step at the lower part of the main column, so that the sealing between the piston and the main column can be enhanced. When the knob is released, the piston is lowered to a lower position relative to the auxiliary column, and the upper end surface of the inner ring is separated from the second annular step at the lower part of the main column.
As a further preferred scheme of the utility model, be equipped with the protruding edge of at least round third annular on the lateral wall of inner ring upper segment, the protruding edge of third annular with the inside wall in close contact with of first runner. Through this kind of setting, change the sealed cooperation of original face into the sealed cooperation of line face for sealed complex area of contact reduces, and the user presses to feel relatively can be more smooth when using.
As the preferred scheme of the utility model, be equipped with the protruding edge of fourth annular on the lateral wall of king-post lower extreme, the protruding edge of fourth annular with the cooperation of locking closure lower extreme contact. Protruding edge of fourth annular on the principal post lower extreme lateral wall can play the guard action to the auxiliary column, and when the sealed cooperation dynamics between prevention auxiliary column and the principal column was not enough, the auxiliary column of help can not break away from with the principal column.
As the utility model discloses an optimal scheme, be equipped with third annular step on the lateral wall of principal post upper end, be equipped with the fourth annular step that corresponds with third annular step on the lateral wall of locking closure upper end, the lower surface contact of compression spring upper end and third annular step, the upper surface contact of compression spring lower extreme and fourth annular step. With this arrangement, the compression spring is confined between the third annular step and the fourth annular step.
As the preferred scheme of the utility model, be equipped with the protruding edge of fifth annular on the lateral wall of locking closure. Usually, an annular clamping groove is formed in the inner side wall of the upper end of the pump body, and the fifth annular convex edge is located in the annular clamping groove. Through the mutual cooperation of the fifth annular convex edge of the lock cover and the annular clamping groove of the pump body, the outer side wall of the lock cover is fixed on the inner side wall of the upper end of the pump body, so that the sealing between the lock cover and the pump body can be enhanced, and the main column assembly is prevented from being separated from the pump body.
As the utility model discloses a preferred scheme, the lower part of auxiliary column is equipped with the spacing portion of round platform form big end down, the inner circle lower extreme is equipped with from interior to the annular inclined plane of outer downward sloping gradually, annular inclined plane and the spacing portion contact cooperation of round platform form. When the press head is pressed, the piston rises to a high position relative to the auxiliary column, the upper end face of the inner ring is in sealing fit with the second annular step at the lower part of the main column, and the lower end of the inner ring is separated from the truncated cone-shaped limiting part, so that emulsion in the cavity at the lower part of the pump body can smoothly enter the second flow channel from the liquid inlet hole, and the emulsion is prevented from leaking to the cavity at the upper part of the pump body; when the press head is released, the piston descends to a low position relative to the auxiliary column, the upper end face of the inner ring is separated from the second annular step at the lower part of the main column, the annular inclined plane at the lower end of the inner ring is in sealing fit with the round platform-shaped limiting part at the lower part of the auxiliary column, the sealing between the piston and the auxiliary column can be enhanced, the liquid inlet hole of the second flow channel is separated from the cavity of the pump body, and the negative pressure is generated in the cavity at the lower part of the pump body.
Compared with the prior art, the utility model, have following advantage:
the utility model discloses a cooperation between locking closure, king-post, auxiliary column, piston, the compression spring constitutes the king-post subassembly of emulsion pump, has changed the cooperation mode between each subassembly, can improve the sealing performance between each subassembly, can effectively prevent the phenomenon emergence of weeping.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
fig. 2 is a schematic diagram of an emulsion pump having the main column assembly according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-2, the main column assembly of the emulsion pump in this embodiment includes a main column 1, a piston 2, an auxiliary column 3, a compression spring 4 and a lock cover 5, wherein the upper end of the auxiliary column 3 is connected to the main column 1, a first flow channel 11 running up and down is arranged in the main column 1, a second flow channel 31 is arranged in the auxiliary column 3, and the second flow channel 31 is communicated with the first flow channel 11; the lower end of the auxiliary column 3 is provided with three liquid inlet holes 32, and the liquid inlet holes 32 are communicated with the second flow passage 31; the piston 2 comprises an outer ring 21, an annular connecting part 22 and an inner ring 23, the outer ring 21, the annular connecting part 22 and the inner ring 23 are integrally manufactured, the inner ring 23 is sleeved on the auxiliary column 3, and the inner side wall of the inner ring 23 is tightly contacted with the outer side wall of the auxiliary column 3; the lock cover 5 is sleeved on the main column 1, and the inner side wall of the lock cover 5 is tightly contacted with the outer side wall of the main column 1; the compression spring 4 is sleeved on the upper section of the main column 1, the upper end of the compression spring 4 is contacted with the upper end of the main column 1, and the lower end of the compression spring 4 is contacted with the upper end of the lock cover 5; the upper section of the sub-column 3 is positioned in the first flow passage 11, and the outer side wall of the upper section of the sub-column 3 is in close contact with the inner side wall of the first flow passage 11; an upper annular limiting groove 24 with an upward opening is defined among the upper section of the outer ring 21, the annular connecting portion 22 and the upper section of the inner ring 23, the lower end of the main column 1 is positioned in the upper annular limiting groove 24, the upper section of the inner ring 23 is positioned in the first flow passage 11, the outer side wall of the upper section of the inner ring 23 is in close contact with the inner side wall of the first flow passage 11, the lower end of the inner ring 23 is in contact fit with the lower portion of the auxiliary column 3, and the upper end of the outer ring 21 is in contact fit with the lower end of the lock cover 5.
The lotion pump also comprises a press head 6, a pump body 7 and an outer cover 8; the side wall of the inner cavity of the outer cover 8 is provided with an inner screw thread 81, the main column assembly is arranged in the inner cavity of the pump body 7, and the outer cover 8 can be rotatably sleeved on the outer side of the locking cover 5; the bottom of the pump body 7 is provided with a liquid inlet 71, and a check valve 9 is arranged at the liquid inlet 71; the press head 6 is provided with a third flow channel 61, the press head 6 is connected with the upper end of the main column 1, and the third flow channel 61 is communicated with the first flow channel 11. The outer cap 8 is used for being connected with the mouth of a packaging bottle so as to mount the lotion pump on the packaging bottle. The top of the pump body 7 is also provided with an annular gasket 10, the upper end face of the annular gasket 10 is in close contact with the lower end face of the top of the pump body 7, and the lower end face of the annular gasket 10 is in close contact with the upper end face of the bottle opening of the packaging bottle, so that the packaging bottle is in sealed fit with the pump body 7. Of course, the fitting between the press head 6, the pump body 7, and the outer cap 8 and the main column assembly is not exclusive, and the lotion pump may use other structures of the press head 6, the pump body 7, and the outer cap 8 to fit the main column assembly according to actual needs.
When a product packaged by the packaging bottle is in an unused state, the outer side wall of the upper section of the auxiliary column 3 is in close contact with the inner side wall of the first flow passage 11, so that the auxiliary column 3 is in sealing fit with the inner side wall of the first flow passage 11; the compression spring 4 is in an extended state (the compression force is small); as the press head 6 is connected with the upper end of the main column 1, the outer side wall of the lock cover 5 is in close contact with the inner side wall of the upper end of the pump body 7, the inner side wall of the lock cover 5 is in close contact with the outer side wall of the main column 1, the inner side wall of the inner ring 23 is in close contact with the outer side wall of the auxiliary column 3, the outer side wall of the upper section of the inner ring 23 is in close contact with the inner side wall of the first flow channel 11, the outer side wall of the outer ring 21 is in close contact with the inner side wall of the pump body 7, and the check valve 9 at the bottom of the pump body 7 seals the liquid inlet 71, the cavity of the pump body 7 above the check valve 9 is in a closed state, and at the moment, no emulsion exists in the second flow channel 31 and the third flow channel 61.
When the press head 6 is pressed downwards, the press head 6 drives the main column 1 to move downwards, the outer side wall of the upper section of the auxiliary column 3 is in close contact with the inner side wall of the first flow channel 11, the auxiliary column 3 moves downwards along with the press head 6 and the main column 1, the compression spring 4 is compressed, and the piston 2 is not acted by external force and cannot move downwards simultaneously; when the main column 1 and the auxiliary column 3 continue to move downwards along the inner side wall of the pump body 7, the upper end of the outer ring 21 is separated from the lower end of the lock cover 5, the lower end of the inner ring 23 is separated from the lower part of the auxiliary column 3, and the liquid inlet hole 32 of the second flow passage 31 is opened, so that the liquid inlet hole 32 is communicated with the cavity of the pump body 7, and emulsion in the cavity at the lower part of the pump body 7 can smoothly enter the second flow passage 31; until the main column 1 presses the piston 2 downwards (the piston 2 rises to a high position relative to the auxiliary column 3), the lower end of the main column 1 is in sealing fit with the bottom of the upper annular limiting groove 24 of the piston 2, at the moment, the compression spring 4 is compressed continuously, the piston 2 moves downwards along with the main column 1, the emulsion in the pump body 7 is pressurized, because the outer side wall of the outer ring 21 of the piston 2 is closely contacted with the inner side wall of the pump body 7, the emulsion can not flow into the matching position of the pump body 7 and the lock cover 5 from the matching position of the outer ring 21 and the pump body 7, moreover, the check valve 9 is pressed by the emulsion to close the liquid inlet 71 at the bottom of the pump body 7 (due to the sealing fit between the main column assembly and the pump body 7), the emulsion can not flow back into the packaging bottle through the liquid inlet 71 through the check valve 9, the emulsion in the cavity of the pump body 7 can only flow out of the liquid inlet hole 32 in the secondary column 3, the second flow passage 31 and the third flow passage 61 in the press head 6 in sequence.
The pressing head 6 is released, after the pressing force is removed, the main column 1 is acted by the upward rebound force of the compression spring 4 to drive the pressing head 6 and the auxiliary column 3 to move upwards, because the outer side wall 21 of the outer ring of the piston 2 is in close contact (interference seal) with the inner side wall of the pump body 7, the piston 2 has resistance to keep still until the lower end of the main column 1 is separated from the bottom of the upper annular limiting groove 24 of the piston 2, the upper end of the outer ring 21 is in seal fit with the lower end of the lock cover 5, the lower end of the inner ring 23 is in seal fit with the lower part of the auxiliary column 3 (the piston 2 is lowered to a low position relative to the auxiliary column 3), and the liquid inlet hole 32 at the lower part of the auxiliary column 3 is closed, so that the liquid inlet hole 32 is separated from the cavity of the pump body 7, and the generation of negative pressure in the cavity of the pump body 7 is facilitated; under the action of resilience resetting of the compression spring 4, the press head 6, the main column 1 and the auxiliary column 3 can drive the piston 2 to continuously ascend and reset, negative pressure is generated in the cavity of the pump body 7, the check valve 9 at the bottom of the pump body 7 is opened, and emulsion in the packaging bottle enters the cavity of the pump body 7 through the liquid inlet 71.
A first annular step 111 is arranged on the inner side wall of the middle part of the first flow channel 11, and the upper end surface of the auxiliary column 3 is positioned below the first annular step 111 and is in close contact with the lower surface of the first annular step 111. With this arrangement, the secondary 3 is prevented from continuing to slide along the inner side wall of the first flow path 11, ensuring a sealing engagement of the secondary 3 with the primary 1.
Be equipped with two rings of first annular protruding edges 112 on the inside wall at first flow channel 11 middle part, be equipped with two rings of second annular protruding edges 33 on the lateral wall of the 3 upper segments of auxiliary column, second annular protruding edges 33 is the same with first annular protruding edges 112 quantity and one-to-one, and second annular protruding edges 33 cooperates with corresponding first annular protruding edges 112 joint. The upper section of the auxiliary column 3 is connected with the main column 1, the second annular convex edge 33 of the upper section of the auxiliary column 3 is in one-to-one correspondence with the first annular convex edge 112 in the first flow passage 11 and is in clamping fit with each other, so that the upper section of the auxiliary column 3 is fixedly arranged in the first flow passage 11 of the main column 1, and the auxiliary column 3 moves along with the movement of the main column 1.
A second annular step 113 is arranged on the inner side wall of the lower portion of the first flow passage 11, and the upper end surface of the inner ring 23 is located below the second annular step 113 and is in contact fit with the lower surface of the second annular step 113. By this arrangement, the inner ring 23 can be prevented from continuously sliding along the inner side wall of the first flow passage 11, and the sealing engagement of the inner ring 23 with the main column 1 can be ensured. When the push head 6 is pressed, the piston 2 rises to a high position relative to the auxiliary column 3, and the upper end surface of the inner ring 23 is in sealing fit with the second annular step 113 at the lower part of the main column 1, so that the sealing between the piston 2 and the main column 1 can be enhanced. When the push head 6 is released, the piston 2 is lowered relative to the secondary column 3 to a lowered position in which the upper end face of the inner race 23 is spaced from the second annular step 113 at the lower part of the primary column 1.
The outer side wall of the upper section of the inner ring 23 is provided with a ring of third annular convex edge 231, and the third annular convex edge 231 is in close contact with the inner side wall of the first flow channel 11. Through this kind of setting, change the sealed cooperation of original face into the sealed cooperation of line face for sealed complex area of contact reduces, and the user presses to feel relatively can be more smooth when using.
And a fourth annular convex edge 12 is arranged on the outer side wall of the lower end of the main column 1, and the fourth annular convex edge 12 is in contact fit with the lower end of the lock cover 5. Protruding edge 12 of fourth annular on the lower extreme lateral wall of principal post 1 can play the guard action to auxiliary column 3, when the sealed cooperation dynamics between 3 of prevention auxiliary column and the principal post 1 was not enough, the auxiliary column 3 of help can not break away from with principal post 1.
The lateral wall of the upper end of the main column 1 is provided with a third annular step 13, the lateral wall of the upper end of the lock cover 5 is provided with a fourth annular step 51 corresponding to the third annular step 13, the upper end of the compression spring 4 is in contact with the lower surface of the third annular step 13, and the lower end of the compression spring 4 is in contact with the upper surface of the fourth annular step 51. With this arrangement, the compression spring 4 is confined between the third annular step 13 and the fourth annular step 51.
The outer side wall of the locking cover 5 is provided with a fifth annular convex edge 52. Usually, the inner side wall of the upper end of the pump body 7 is provided with a ring-shaped slot, and the fifth ring-shaped protruding edge 52 is located in the ring-shaped slot. Through the mutual cooperation of the fifth annular convex edge 52 of the locking cover 5 and the annular clamping groove of the pump body 7, the outer side wall of the locking cover 5 is fixed on the inner side wall of the upper end of the pump body 7, so that the sealing between the locking cover 5 and the pump body 7 can be enhanced, and the main column assembly is prevented from being separated from the pump body 7.
The lower part of the auxiliary column 3 is provided with a round table-shaped limiting part 34 with a small upper part and a large lower part, the lower end of the inner ring 23 is provided with an annular inclined surface 232 which gradually inclines downwards from inside to outside, and the annular inclined surface 232 is in contact fit with the round table-shaped limiting part 34. When the press head 6 is pressed, the piston 2 rises to a high position relative to the auxiliary column 3, at the moment, the upper end surface of the inner ring 23 is in sealing fit with the second annular step 113 at the lower part of the main column 1, and the lower end of the inner ring 23 is separated from the circular truncated cone-shaped limiting part 34, so that emulsion in the cavity at the lower part of the pump body 7 can smoothly enter the second flow channel 31 from the liquid inlet hole 32, and the emulsion is prevented from leaking to the cavity at the upper part of the pump body 7; when the press head 6 is released, the piston 2 descends to a low position relative to the auxiliary column 3, at the moment, the upper end surface of the inner ring 23 is separated from the second annular step 113 at the lower part of the main column 1, the annular inclined surface 232 at the lower end of the inner ring 23 is in sealing fit with the truncated cone-shaped limiting part 34 at the lower part of the auxiliary column 3, the sealing between the piston 2 and the auxiliary column 3 can be enhanced, the liquid inlet hole 32 of the second flow passage 31 is separated from the cavity of the pump body 7, and the negative pressure is generated in the cavity at the lower part of the pump body 7.
In addition, it should be noted that the names of the various parts of the embodiments described in the present specification may be different, and all the equivalent or simple changes made according to the structures, characteristics and principles of the present invention are included in the protection scope of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (9)
1. A main column assembly of an emulsion pump comprises a main column, a piston, an auxiliary column and a compression spring, wherein the upper end of the auxiliary column is connected with the main column, a first flow passage which moves up and down is arranged in the main column, a second flow passage is arranged in the auxiliary column, and the second flow passage is communicated with the first flow passage; the lower end of the auxiliary column is provided with at least one liquid inlet hole which is communicated with the second flow channel; the piston comprises an outer ring, an annular connecting part and an inner ring, the outer ring, the annular connecting part and the inner ring are integrally manufactured, the inner ring is sleeved on the auxiliary column, and the inner side wall of the inner ring is in close contact with the outer side wall of the auxiliary column; the method is characterized in that: the lock cover is sleeved on the main column, and the inner side wall of the lock cover is in close contact with the outer side wall of the main column; the compression spring is sleeved on the upper section of the main column, the upper end of the compression spring is contacted with the upper end of the main column, and the lower end of the compression spring is contacted with the upper end of the lock cover; the upper section of the auxiliary column is positioned in the first flow channel, and the outer side wall of the upper section of the auxiliary column is in close contact with the inner side wall of the first flow channel; an upper annular limiting groove with an upward opening is formed by the upper section of the outer ring, the annular connecting portion and the upper section of the inner ring in a surrounding mode, the lower end of the main column is located in the upper annular limiting groove, the upper section of the inner ring is located in the first flow channel, the outer side wall of the upper section of the inner ring is in close contact with the inner side wall of the first flow channel, the lower end of the inner ring is in contact fit with the lower portion of the auxiliary column, and the upper end of the outer ring is in contact fit with the lower end of the locking cover.
2. The emulsion pump main column assembly of claim 1, wherein: and a first annular step is arranged on the inner side wall of the middle part of the first flow channel, and the upper end surface of the auxiliary column is positioned below the first annular step and is in close contact with the lower surface of the first annular step.
3. The emulsion pump main column assembly of claim 2, wherein: be equipped with the protruding edge of the first annular of at least round on the inside wall at first flow channel middle part, be equipped with the protruding edge of at least round second annular on the lateral wall of auxiliary column upper segment, the protruding edge of second annular is the same and the one-to-one with the protruding edge quantity of first annular, and the protruding edge of second annular cooperates with the protruding edge joint of corresponding first annular.
4. The main column assembly of emulsion pump of claim 1, wherein: and a second annular step is arranged on the inner side wall of the lower part of the first flow channel, and the upper end surface of the inner ring is positioned below the second annular step and is in contact fit with the lower surface of the second annular step.
5. The main column assembly of emulsion pump of claim 4, wherein: and the outer side wall of the upper section of the inner ring is provided with at least one circle of third annular convex edge, and the third annular convex edge is in close contact with the inner side wall of the first flow channel.
6. The main column assembly of emulsion pump of claim 1, wherein: and a fourth annular convex edge is arranged on the outer side wall of the lower end of the main column and is in contact fit with the lower end of the lock cover.
7. The emulsion pump main column assembly of claim 1, wherein: the outer side wall of the upper end of the main column is provided with a third annular step, the outer side wall of the upper end of the locking cover is provided with a fourth annular step corresponding to the third annular step, the upper end of the compression spring is in contact with the lower surface of the third annular step, and the lower end of the compression spring is in contact with the upper surface of the fourth annular step.
8. The emulsion pump main column assembly of claim 1, wherein: and a fifth annular convex edge is arranged on the outer side wall of the lock cover.
9. The emulsion pump main column assembly of claim 1, wherein: the lower part of the auxiliary column is provided with a round table-shaped limiting part with a small upper part and a large lower part, the lower end of the inner ring is provided with an annular inclined surface which gradually inclines downwards from inside to outside, and the annular inclined surface is in contact fit with the round table-shaped limiting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220942011.1U CN217049761U (en) | 2022-04-22 | 2022-04-22 | Main column assembly of emulsion pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220942011.1U CN217049761U (en) | 2022-04-22 | 2022-04-22 | Main column assembly of emulsion pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217049761U true CN217049761U (en) | 2022-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220942011.1U Active CN217049761U (en) | 2022-04-22 | 2022-04-22 | Main column assembly of emulsion pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217049761U (en) |
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2022
- 2022-04-22 CN CN202220942011.1U patent/CN217049761U/en active Active
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