CN217348991U - Suck-back pressing pump - Google Patents
Suck-back pressing pump Download PDFInfo
- Publication number
- CN217348991U CN217348991U CN202220278136.9U CN202220278136U CN217348991U CN 217348991 U CN217348991 U CN 217348991U CN 202220278136 U CN202220278136 U CN 202220278136U CN 217348991 U CN217348991 U CN 217348991U
- Authority
- CN
- China
- Prior art keywords
- cavity
- liquid
- suck
- axial
- liquid guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
A suck-back pressing pump comprises a pressing head, a screw thread, a lock cover, a main column, an auxiliary column, a piston, a spring, a body and a one-way valve core, wherein the pressing head comprises a liquid inlet pipe and a liquid outlet pipe; the main column comprises an upper connecting cavity, a liquid guide hole and a connecting liquid guide cavity, wherein the connecting liquid guide cavity is provided with an axial guide groove and a radial liquid guide groove, and the radial liquid guide groove is communicated with the liquid guide hole; the suction device also comprises a suction piece, the suction piece comprises a suction rod and a round base, and an axial liquid guide hole is formed in the round bottom; the liquid inlet pipe of the press head is inserted into the upper connecting cavity; the auxiliary column is inserted into the connecting drainage cavity; the circular base is provided with an accommodating cavity, and the resorption rod is in sliding fit with the resorption cavity and is sealed. After the pressing head is stopped, the main column and the auxiliary column move upwards under the action of the spring, the suck-back rod and the suck-back cavity move relatively to form liquid sucking action, liquid is sucked back, and liquid is prevented from being attached to a liquid outlet pipe of the pressing head.
Description
Technical Field
The utility model relates to a press pump.
Background
In the prior art, as shown in fig. 7, a pressing pump includes a pressing head (not shown), a screw thread, a locking cap 3, a main column 4, an auxiliary column 5, a piston 6, a spring 7, a body 8, and a one-way valve core 9, where the pressing head includes a liquid inlet pipe and a liquid outlet pipe, the locking cap 3 includes a hollow body 31 with upper and lower openings, a spring seat 32 disposed at an upper end of the body, and a connecting seat 33 with an insertion groove; the body 8 comprises a flange 81 arranged at the upper end and a one-way valve seat 82 arranged at the bottom, a flow guide channel 51 and a liquid guide hole 52 are arranged on the auxiliary column 5, the auxiliary column 5 is inserted into the lower end of the main column 4, and the piston 6 is arranged on the auxiliary column 5; the body part 31 of the locking cover 3 is inserted into the body 8, the upper end of the body 8 is inserted into the insertion groove of the connecting seat 33, and the main column 4 is in sliding fit with the body part 31; the spring 7 is matched with the spring seat 32 and a flanging 41 at the upper end of the main column 4; the screw teeth are connected with a connecting seat 33 of the lock cover 3; when in use, the press head is pressed, and liquid is sprayed out through a liquid outlet pipe of the press head through a gap between the piston 6 and the auxiliary column 5, the liquid guide hole 52 and the flow guide channel 51. There are problems in that: liquid is attached to or drips from the liquid outlet pipe; the liquid in the liquid outlet pipe is polluted, and when the liquid is used again, the liquid is polluted.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: provides a suck-back pressing pump which has the characteristics of liquid backflow, no attachment in a liquid outlet pipe and pollution prevention.
The utility model discloses a realize like this: a suck-back pressing pump comprises a press head, screw teeth, a lock cover, a main column, an auxiliary column, a piston, a spring, a body and a one-way valve core, wherein the press head comprises a liquid inlet pipe and a liquid outlet pipe; the body comprises a flange arranged at the upper end and a one-way valve seat arranged at the bottom, the auxiliary column is inserted into the lower end of the main column, and the piston is arranged on the auxiliary column; the body part of the lock cover is inserted into the body, the upper end of the body is inserted into the insertion groove, and the main column is in sliding fit with the body part; the spring is matched with the spring seat and the flanging at the upper end of the main column; the screw threads are matched with a flange of the body; it is characterized in that: the upper part of the one-way valve seat of the body is provided with an accommodating cavity, and the auxiliary column is provided with a back suction cavity along the axial direction;
the main column comprises an upper connecting cavity, a liquid guide hole and a connecting liquid guide cavity, wherein the connecting liquid guide cavity is provided with an axial guide groove and a radial liquid guide groove, and the radial liquid guide groove is communicated with the liquid guide hole;
the sucking-back piece comprises a sucking-back rod and a round base, and an axial liquid guide hole is formed in the round bottom;
the liquid inlet pipe of the press head is inserted into the upper connecting cavity; the auxiliary column is inserted into the connecting drainage cavity; the circular base is provided with an accommodating cavity, and the resorption rod is in sliding fit with the resorption cavity and is sealed.
The suck-back pressing pump is characterized in that: and the inner wall of the back suction cavity is provided with an annular bulge, and the annular bulge is in sliding fit with the back suction rod.
The suck-back pressing pump is characterized in that: the one-way valve seat comprises an inverted conical frustum-shaped part and a cylindrical part positioned at the lower end,
the one-way valve core is a glass ball and is matched with the inverted cone frustum-shaped part.
The suck-back pressing pump is characterized in that: a plurality of axial ribbed plates are arranged on the body between the accommodating cavity and the one-way valve seat,
an inner annular bulge is arranged in the upper end of the accommodating cavity; the circular base is matched and positioned with the upper end of the axial rib plate and the inner annular bulge.
The suck-back pressing pump is characterized in that: the screw thread comprises a lower internal thread connecting part, an upper cavity part and an annular guide cavity surrounding the upper cavity part,
an axial guide groove, an arc-shaped guide platform and a locking groove are arranged on the inner annular wall of the annular guide cavity;
the pressing head also comprises a barrel body part, and an axial guide rail is arranged on the inner wall of the barrel body part;
the barrel body part is in sliding fit with the annular guide cavity, the axial guide rail is in sliding fit with the axial guide groove to be in a working state, and the lower end of the axial guide rail is embedded with the locking groove to be in a locking state.
The utility model relates to a suck-back presses force pump, owing to adopt such structure, stop to press the button after, principal post and auxiliary post rebound under the effect of spring, suck-back pole and suck-back chamber relative movement, form the drawing liquid action, with liquid suck-back, prevent the drain pipe adhering liquid of button.
Drawings
Fig. 1 is a sectional view of the present invention.
Fig. 2 is a cross-sectional view of the utility model after pressing.
Fig. 3 is one of the exploded perspective views of the present invention.
Fig. 4 is a second exploded perspective view of the present invention.
Fig. 5 is a perspective sectional view of the main column of the present invention.
Fig. 6 is a perspective view of the screw of the present invention.
Fig. 7 is a cross-sectional view of the prior art.
Detailed Description
Reference will now be made in detail to the 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 functions 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, 2 and 3, a suck-back pressing pump comprises a pressing head 1, a thread 2, a locking cover 3, a main column 4, an auxiliary column 5, a piston 6, a spring 7, a body 8 and a one-way valve core 9, wherein the pressing head 1 comprises a liquid inlet pipe 11 and a liquid outlet pipe 12, the locking cover 3 comprises a hollow body 31 with an upper opening and a lower opening, a spring seat 32 arranged at the upper end of the body and a connecting seat 33 with a plugging groove; the body 8 comprises a flange 81 arranged at the upper end and a one-way valve seat 82 arranged at the bottom, the auxiliary column 5 is inserted into the lower end of the main column 4, and the piston 6 is arranged on the auxiliary column 5; the body part 31 of the locking cover 3 is inserted into the body 8, the upper end of the body 8 is inserted into the insertion groove of the connecting seat 33, and the main column 5 is in sliding fit with the body part 31; the spring 7 is matched with the spring seat 32 and a flange 41 at the upper end of the main column 4; the screw teeth 2 are matched with a flange of the body 8;
the upper portion of the one-way valve seat 82 of the body 8 is provided with a housing chamber 83,
the auxiliary column 5 is provided with a suck-back cavity 53 along the axial direction;
the main column 4 comprises an upper connecting cavity 42, a liquid guide hole 43 and a connecting liquid guide cavity 44, wherein the connecting liquid guide cavity 44 is provided with an axial guide groove 441 and a radial liquid guide groove 442, and the radial liquid guide groove 442 is communicated with the liquid guide hole 43; the diameter of the liquid guide hole 43 is smaller than the diameters of the upper connecting cavity 42 and the connecting liquid guide cavity 44;
the suction device comprises a suction piece 9, the suction piece 9 comprises a suction rod 91 and a circular base 92, and an axial liquid guide hole 921 is formed in the circular base 92;
the liquid inlet pipe 11 of the press head 1 is inserted into the upper connecting cavity 42; the auxiliary column 5 is inserted into the connecting liquid guide cavity 44, and the auxiliary column 5, the axial guide groove 441 and the radial guide groove 442 respectively form an axial guide channel and a radial guide channel; the circular base 92 is provided with an accommodating cavity 83, and the suck-back rod 91 is in sliding fit with the suck-back cavity 53 and is sealed.
When the utility model is used, the press head 1 is pressed, and the press head 1, the main column 4 and the auxiliary column 5 move downwards; liquid enters the body 8 through the one-way valve seat 82 and the axial liquid guide hole 921 on the round base 92, enters the liquid inlet pipe and the liquid outlet pipe 12 of the press head through the gap between the piston 6 and the auxiliary column 5, the axial flow guide channel and the radial flow guide channel, and is sprayed out; the press head 1 loses power, under the action of the spring 7, the press head 1, the main column 4 and the auxiliary column 5 move upwards, the suck-back cavity 53 moves relative to the suck-back rod 91 to form suction action, and liquid in the liquid outlet pipe 12 is sucked back into the suck-back cavity 53; preventing liquid outlet tube 12 from dripping or adhering inside liquid outlet tube 12.
The inner wall of the suck-back cavity 53 is provided with an annular protrusion 531, the annular protrusion 531 is in sliding fit with the suck-back rod 91, the cross section of the annular protrusion 531 is arc-shaped, and the number of the annular protrusions 531 is at least two, so that the sealing performance is ensured, and the resistance is reduced.
The check valve seat 82 includes an inverted conical frustum portion 821 and a cylindrical portion 822 at a lower end,
the one-way valve core 9 is a glass ball, the one-way valve core 9 is in supporting fit and sealing with the inverted cone frustum-shaped part 821, and the one-way valve core 9 extends into the cylindrical part 822.
A plurality of axial ribs 84 are arranged on the body 8 between the accommodating cavity 83 and the one-way valve seat 82,
an inner annular bulge 831 is arranged at the upper end of the accommodating cavity 83; the circular base 92 is positioned in cooperation with the upper ends of the axial ribs 84 and the inner annular projection 831.
The utility model discloses a further improvement: as shown in fig. 3, 4 and 6, the screw thread 2 includes a lower internal thread connection portion 21, an upper cavity portion 22 and an annular guide cavity 23 surrounding the upper cavity portion, the diameter of the upper cavity portion 22 is smaller than that of the lower internal thread connection portion 21, the lower internal thread connection portion 21 is screwed with a screw port of a liquid container, and a flange 81 of the body 8 is attached to the top of the lower internal thread connection portion 21; the connecting seat 33 of the locking cover 3 extends into the upper cavity part 22, and the main column moves up and down in the upper cavity part 22;
an axial guide groove 231, an arc-shaped guide table 232 and a locking groove 233 are arranged on the inner annular wall of the annular guide cavity 23;
the pressing head 1 further comprises a barrel part 13, the barrel part 13 is arranged around the liquid inlet pipe 11, and an axial guide rail 131 is arranged on the inner wall of the barrel part 13;
the cylindrical body 13 is slidably fitted into the annular guide chamber 23, the axial guide rail 131 is slidably fitted into the axial guide groove 231 in an operating state, and the lower end of the axial guide rail 131 is fitted into the locking groove 233 in a locked state.
When the working state is switched to the locking state, the lower end of the axial guide rail 131 slides on the arc-shaped guide table 232 only by clockwise rotating the press head 1, and then the locking groove 233 is placed, so that the locking state is switched;
the locking state is converted into the working state, and the pressing head 1 only needs to be rotated anticlockwise.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (5)
1. A suck-back pressing pump comprises a press head, screw teeth, a lock cover, a main column, an auxiliary column, a piston, a spring, a body and a one-way valve core, wherein the press head comprises a liquid inlet pipe and a liquid outlet pipe; the body comprises a flange arranged at the upper end and a one-way valve seat arranged at the bottom, the auxiliary column is inserted into the lower end of the main column, and the piston is arranged on the auxiliary column; the body part of the lock cover is inserted into the body, the upper end of the body is inserted into the insertion groove, and the main column is in sliding fit with the body part; the spring is matched with the spring seat and the flanging at the upper end of the main column; the screw threads are matched with a flange of the body; the method is characterized in that: the upper part of the one-way valve seat of the body is provided with an accommodating cavity, and the auxiliary column is provided with a back suction cavity along the axial direction;
the main column comprises an upper connecting cavity, a liquid guide hole and a connecting liquid guide cavity, wherein the connecting liquid guide cavity is provided with an axial guide groove and a radial liquid guide groove, and the radial liquid guide groove is communicated with the liquid guide hole;
the suction device also comprises a suction piece, the suction piece comprises a suction rod and a round base, and an axial liquid guide hole is formed in the round bottom;
the liquid inlet pipe of the press head is inserted into the upper connecting cavity; the auxiliary column is inserted into the connecting drainage cavity; the circular base is provided with an accommodating cavity, and the resorption rod is in sliding fit with the resorption cavity and is sealed.
2. A suck-back pressure pump according to claim 1, wherein: and an annular bulge is arranged on the inner wall of the suck-back cavity and is in sliding fit with the suck-back rod.
3. A suck-back compression pump as claimed in claim 1, wherein: the one-way valve seat comprises an inverted conical frustum-shaped part and a cylindrical part positioned at the lower end,
the one-way valve core is a glass ball and is matched with the inverted cone frustum-shaped part.
4. A suck-back compression pump as claimed in claim 1, wherein: a plurality of axial ribbed plates are arranged on the body between the accommodating cavity and the one-way valve seat,
an inner annular bulge is arranged in the upper end of the accommodating cavity; the circular base is matched and positioned with the upper end of the axial rib plate and the inner annular bulge.
5. A suck-back compression pump according to claim 1, 2, 3 or 4, wherein: the screw thread comprises a lower internal thread connecting part, an upper cavity part and an annular guide cavity surrounding the upper cavity part,
an axial guide groove, an arc-shaped guide platform and a locking groove are arranged on the inner annular wall of the annular guide cavity;
the pressing head also comprises a barrel body part, and an axial guide rail is arranged on the inner wall of the barrel body part;
the barrel body part is in sliding fit with the annular guide cavity, the axial guide rail is in sliding fit with the axial guide groove to be in a working state, and the lower end of the axial guide rail is embedded with the locking groove to be in a locking state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220278136.9U CN217348991U (en) | 2022-02-10 | 2022-02-10 | Suck-back pressing pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220278136.9U CN217348991U (en) | 2022-02-10 | 2022-02-10 | Suck-back pressing pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217348991U true CN217348991U (en) | 2022-09-02 |
Family
ID=83046224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220278136.9U Active CN217348991U (en) | 2022-02-10 | 2022-02-10 | Suck-back pressing pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217348991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024087707A1 (en) * | 2022-10-27 | 2024-05-02 | 中山市联昌喷雾泵有限公司 | Pressing pump capable of self-rotating locking and unlocking |
-
2022
- 2022-02-10 CN CN202220278136.9U patent/CN217348991U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024087707A1 (en) * | 2022-10-27 | 2024-05-02 | 中山市联昌喷雾泵有限公司 | Pressing pump capable of self-rotating locking and unlocking |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102145782B (en) | Pressing type emulsion spray nozzle | |
| WO2021169649A1 (en) | Full-plastic emulsion pump | |
| CN217348991U (en) | Suck-back pressing pump | |
| CN111959940B (en) | Main column and piston integrated into one piece's plastic emulsion pump | |
| CN209739723U (en) | Full-plastic emulsion pump | |
| CN112340224A (en) | All-plastic pump with internal lock | |
| CN217806271U (en) | All-plastic emulsion pump | |
| CN109622265A (en) | A kind of foam watering can of Manual pressure | |
| CN111099145A (en) | Back suction emulsion pump | |
| CN202098699U (en) | Pressure type latex spray head | |
| CN219273384U (en) | Pressing pump for rebound liquid | |
| CN209735853U (en) | Manual pressure's foam watering can | |
| CN110979966A (en) | Emulsion pump with suck-back structure | |
| CN213975245U (en) | All-plastic pump with internal lock | |
| CN211443380U (en) | Emulsion pump with suck-back structure | |
| CN213832812U (en) | Plastic pump with external elastomer | |
| CN211887508U (en) | Full plastic oil pump | |
| CN216762808U (en) | Suck-back pressing pump | |
| CN111038841B (en) | Single spring spray pump | |
| CN212386936U (en) | Spring-up structure of emulsion pump press head and main column | |
| CN211495184U (en) | Single-spring spray pump | |
| KR200281525Y1 (en) | Pumping plant of cosmetic case | |
| CN110963171A (en) | Displacement pump | |
| CN217699673U (en) | Full-plastic spray gun | |
| CN220097162U (en) | Prevent locking buckle pine and take off push down pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |