CN220683350U - External spring foam pump - Google Patents
External spring foam pump Download PDFInfo
- Publication number
- CN220683350U CN220683350U CN202322227771.1U CN202322227771U CN220683350U CN 220683350 U CN220683350 U CN 220683350U CN 202322227771 U CN202322227771 U CN 202322227771U CN 220683350 U CN220683350 U CN 220683350U
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- cylinder
- piston
- liquid pump
- section
- pump piston
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- 239000006260 foam Substances 0.000 title claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 82
- 238000007789 sealing Methods 0.000 claims abstract description 41
- 239000011521 glass Substances 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 11
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 5
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 5
- 241001330002 Bambuseae Species 0.000 claims description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 5
- 239000011425 bamboo Substances 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 5
- 239000012530 fluid Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Reciprocating Pumps (AREA)
Abstract
The utility model discloses an external spring foam pump which comprises an outer cover, a pressing piece, a cylinder, a liquid pump cylinder, an air pump piston assembly, a liquid pump piston assembly, a spring and a sealing assembly, wherein the air pump piston assembly moves along with the pressing piece, the liquid pump piston assembly moves along with the air pump piston assembly, the spring is sleeved on the liquid pump piston assembly, the bottom of the liquid pump piston assembly props against a spring seat, the liquid pump piston assembly moves in the cylinder and the liquid pump cylinder, the sealing assembly comprises an annular sealing ring and a < '> type sealing ring, the annular sealing ring is fixed at the connecting position of the cylinder and the liquid pump cylinder, the <' > type sealing ring is arranged at the bottom of the liquid pump piston assembly, and the top of the liquid pump piston assembly props against the bottom of the annular sealing ring.
Description
Technical Field
The utility model relates to the technical field of foam pumps, in particular to an external spring foam pump.
Background
The spring provides the power of piston reciprocating motion for the foam pump, and the spring of current foam pump mostly sets up in the liquid pump room, and the spring can direct contact liquid, has a great deal of shortcoming, therefore also exists some foam pumps that the spring is external on the market, and chinese patent CN213800996U discloses an external foam pump of spring, and its liquid pump piston bottom is equipped with the sealing washer that is used for sealing liquid pump chamber, and this sealing washer can be along with the frequent activity of liquid pump piston, and under long-time friction, the sealing effect of sealing washer can weaken, and the leakproofness of liquid pump chamber diminishes.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide an external spring foam pump which can enhance the sealing performance of a liquid pump chamber.
The technical scheme adopted for solving the technical problems is as follows:
the external spring foam pump comprises an outer cover, a pressing piece and a foam pump body, wherein the pressing piece is arranged at the top of the outer cover, the foam pump body comprises a cylinder, a liquid pump barrel and a piston main body, the cylinder is fixedly connected with the outer cover, a communication hole and a spring seat arranged along the periphery of the communication hole are formed in the bottom end of the cylinder, the liquid pump barrel is communicated with the cylinder through the communication hole, a glass bulb is arranged in the liquid pump barrel, and the piston main body is arranged in the cylinder;
the piston main part includes air pump piston assembly, liquid pump piston assembly, spring and seal assembly, air pump piston assembly follows the press piece activity, liquid pump piston assembly follows air pump piston assembly activity, the spring housing is in liquid pump piston assembly is last and the bottom supports the spring holder, liquid pump piston assembly is in the cylinder with liquid pump section of thick bamboo internal movement, seal assembly includes ring seal and "<" type sealing washer, ring seal fixes the intercommunicating pore position, "<" type sealing washer is established liquid pump piston assembly's bottom and top support ring seal's bottom.
Further, a foam channel is arranged in the pressing piece and is communicated with the liquid pump piston assembly and the liquid pump cylinder.
Further, the liquid pump cylinder comprises a fixed section, a small cylinder section and a connecting section, wherein the fixed section is connected with the air cylinder, the small cylinder section is arranged between the fixed section and the connecting section, the glass ball is arranged in the small cylinder section, a limiting piece for limiting the glass ball to escape is arranged in the small cylinder section, and the connecting section is used for connecting a hose.
Further, the cylinder diameter of the fixed section is larger than that of the small cylinder section, and the cylinder diameter of the small cylinder section is larger than that of the connecting section.
Further, the upper part of the air pump piston assembly is fixedly provided with a friction net, and a limiting shoulder for limiting the movement of the friction net is arranged in the pressing piece.
Further, the outer cover comprises a barrel and a guide barrel arranged on the barrel, internal threads are arranged in the barrel, a first sleeve and a second sleeve are arranged on the lower portion of the pressing piece, and the guide barrel is arranged between the first sleeve and the second sleeve.
Further, the air pump piston assembly comprises an annular blade and an annular piston, the annular blade moves along with the pressing piece, the annular blade is not contacted with the inner wall of the air cylinder, the annular piston is arranged below the annular blade, the annular piston and the inner cavity of the air cylinder form an air pump chamber, and the annular piston is provided with an air vent.
Further, the liquid pump piston assembly comprises a piston seat and a piston rod sleeved in the piston seat, the piston seat is arranged below the air pump piston assembly, a limiting block propping against the top end of the spring is arranged on the piston seat, and the sealing ring is sleeved at the bottom of the piston seat.
Further, the limiting block is provided with a containing groove, the bottom of the air pump piston assembly is provided with a contact resisting rod, and the contact resisting rod moves in the containing groove.
Further, a friction layer is arranged on the top of the pressing piece.
The beneficial effects of the utility model are as follows:
the sealing ring is provided with the two sealing arms, so that the sealing effect is good, even if the sealing ring is worn under long-time use, the annular sealing ring can also play a role in supplementing sealing, and liquid in the liquid pump cylinder is prevented from entering the cylinder.
Drawings
FIG. 1 is a cross-sectional view of an external spring foam pump of the present utility model.
Fig. 2 is a schematic structural view of the external spring foam pump of the present utility model.
FIG. 3 is a schematic cross-sectional view of a cylinder and a cylinder of a liquid pump according to the present utility model.
Fig. 4 is a schematic view of a part of the structure of fig. 1.
Fig. 5 is a schematic structural view of an air pump piston assembly according to the present utility model.
Fig. 6 is a schematic view of the structure of the annular piston in the present utility model.
Fig. 7 is a schematic view of a portion of the construction of an external spring foam pump of the present utility model.
In the figure:
10. an outer cover; 11. a cylinder; 12. a guide cylinder; 13. an internal thread;
20. a pressing member; 21. a foam channel; 22. a first sleeve; 23. a second sleeve; 24. a limit shoulder; 25. a friction layer;
30. a cylinder; 31. a communication hole; 32. a spring seat;
40. a liquid pump cylinder; 41. a fixed section; 42. a small barrel section; 43. a connection section; 44. a limiting piece;
50. a glass bulb;
60. an air pump piston assembly; 61. an annular vane; 62. an annular piston; 63. a vent hole; 64. a touch-up rod;
70. a liquid pump piston assembly; 71. a piston seat; 72. a piston rod; 73. a limiting block; 74. a receiving groove;
80. a spring;
90. a seal assembly; 91. an annular seal ring; 92. a "<" type seal ring; 93. a brim;
100. a liquid pump chamber; 110. friction net; 120. an air pump chamber.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described below with reference to the accompanying drawings and embodiments.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
As shown in fig. 1 to 7, the utility model provides an external spring foam pump, which comprises an outer cover 10, a pressing piece 20 and a foam pump body, wherein the pressing piece 20 is arranged at the top of the outer cover 10, the foam pump body comprises a cylinder 30, a liquid pump cylinder 40 and a piston main body, the cylinder 30 is fixedly connected with the outer cover 10, a communication hole 31 and a spring seat 32 arranged along the periphery of the communication hole 31 are arranged at the bottom end of the cylinder 30, the liquid pump cylinder 40 is communicated with the cylinder 30 through the communication hole 31, a glass bulb 50 is arranged in the liquid pump cylinder 40, and the piston main body is arranged in the cylinder 30.
The piston body comprises an air pump piston assembly 60, a liquid pump piston assembly 70, a spring 80 and a sealing assembly 90, the air pump piston assembly 60 moves along with the pressing piece 20, the liquid pump piston assembly 70 moves along with the air pump piston assembly 60, the spring 80 is sleeved on the liquid pump piston assembly 70, the bottom of the spring 80 abuts against the spring seat 32, the liquid pump piston assembly 70 moves in the air cylinder 30 and the liquid pump cylinder 40, the sealing assembly 90 comprises an annular sealing ring 91 and a < "-type sealing ring 92, the annular sealing ring 91 is fixed at the position of the communication hole 31, and the <" -type sealing ring 92 is arranged at the bottom of the liquid pump piston assembly 70, and the top of the < "-type sealing ring abuts against the bottom of the annular sealing ring 91.
The seal assembly 90 is used to seal the fluid pump cartridge 40, preventing fluid in the fluid pump cartridge 40 from entering the air cylinder 30, and preventing fluid from contaminating the air cylinder 30. The annular seal ring 91 is provided with a cap rim 93 on the top, the annular seal ring 91 is fitted in the communication hole 31, and the cap rim 93 on the top is caught at the position of the opening of the communication hole 31, whereby the annular seal ring 91 is fixed at the position of the communication hole 31. The "<" type seal ring 92 is also annular, the cross-sectional shape along the axial direction thereof is "<" type, namely, is a V-shape rotating ninety degrees clockwise, the "<" type seal ring 92 comprises two seal arms, the angle between the two seal arms is an obtuse angle, the "<" type seal ring 92 is fixed at the bottom of the liquid pump piston assembly 70 and moves back and forth along with the liquid pump piston assembly 70, the two seal arms of the "<" type seal ring 92 are clung to the inner wall of the liquid pump cylinder 40, the first resealing effect is achieved, the end part of the seal arm on the "<" type seal ring 92 is propped against the bottom of the annular seal ring 91 in a natural state, the annular seal ring 91 can seal a gap between the communication hole 31 and the liquid pump piston assembly 70 even if the spring 80 is in a compressed state, and the annular seal ring 91 plays a second resealing effect.
The "<" type sealing ring 92 has two sealing arms, so that the sealing effect is good, and even if the "<" type sealing ring 92 is worn out when used for a long time, the annular sealing ring 91 can also play a role of supplementary sealing, so that liquid in the liquid pump cylinder 40 is prevented from entering the air cylinder 30, and compared with the prior art, the liquid pump chamber 100 has a better sealing effect.
Preferably, the cylinder 30 and the liquid pump cylinder 40 are integrally formed.
Further, the pressing member 20 is provided with a foam channel 21 inside, the foam channel 21 communicates the liquid pump piston assembly 70 and the liquid pump cylinder 40, and the inner cavity of the liquid pump cylinder 40 is called a liquid pump chamber 100.
Further, the liquid pump tube 40 comprises a fixing section 41, a small tube section 42 and a connecting section 43, the fixing section 41 is connected with the air cylinder 30, the small tube section 42 is arranged between the fixing section 41 and the connecting section 43, the glass ball 50 is arranged in the small tube section 42, a limiting piece 44 for limiting the glass ball 50 to escape is arranged in the small tube section 42, and the connecting section 43 is used for connecting a hose. Further, the diameter of the fixed section 41 is larger than that of the small section 42, and the diameter of the small section 42 is larger than that of the connecting section 43. The liquid pump cylinder 40 is divided into three sections, the cylinder diameter of the liquid pump cylinder is reduced in a stepwise manner, the glass ball 50 is limited in the middle section, the glass ball 50 cannot escape, the moving range of the glass ball 50 is small, the liquid outlet amount of foam per time cannot be too large, and waste is not easy to cause.
Further, the upper portion of the air pump piston assembly 60 is fixed with a friction net 110 for making the foam more dense, and a limiting shoulder 24 for limiting the movement of the friction net 110 is provided in the pressing member 20.
Further, the outer cover 10 includes a cylinder 11 and a guiding cylinder 12 provided on the cylinder 11, an internal thread 13 connected with the container is provided in the cylinder 11, a first sleeve 22 and a second sleeve 23 are provided at the lower part of the pressing member 20, the guiding cylinder 12 is provided between the first sleeve 22 and the second sleeve 23, and when the pressing member 20 is pressed down, the pressing member 20 moves down along the direction of the guiding cylinder 12 until touching the top end of the cylinder 11.
Referring to fig. 5 to 7, the air pump piston assembly 60 includes an annular vane 61 and an annular piston 62, the annular vane 61 moves with the pressing member 20, the annular vane 61 does not contact the inner wall of the air cylinder 30 for air circulation, the annular piston 62 is disposed below the annular vane 61, the annular piston 62 and the inner cavity of the air cylinder 30 form an air pump chamber 120, and the annular piston 62 is provided with an air vent 63. The liquid pump piston assembly 70 comprises a piston seat 71 and a piston rod 72 sleeved in the piston seat 71, the piston seat 71 is arranged below the air pump piston assembly 60, a limiting block 73 propping against the top end of a spring 80 is arranged on the piston seat 71, and a sealing ring 92 which is '<' shaped is sleeved at the bottom of the piston seat 71.
Further, the stopper 73 is provided with a receiving groove 74, and the bottom of the air pump piston assembly 60 is provided with a contact rod 64, specifically, the contact rod 64 is provided at the bottom of the annular piston 62, and the contact rod 64 moves in the receiving groove 74. When the spring 80 is in a natural state, the abutting lever 64 escapes from the accommodating groove 74, and when the spring 80 is compressed, the abutting lever 64 enters the accommodating groove 74 and presses the stopper 73, i.e., the piston seat 71 and the piston rod 72.
The foam is produced by mixing liquid and gas, specifically, the pressing piece 20 is pressed down, the spring 80 is compressed, when the pressing is stopped, the spring 80 bounces upward, the glass bulb 50 moves upward under the action of the pressure difference, the liquid enters the liquid pump chamber 100 and the liquid pump piston assembly 70, at the same time, the external gas enters the gas pump chamber 120 through the vent hole 63 and then enters the upper part of the liquid pump piston assembly 70 through the gap, the gas and the liquid are converged above the liquid pump piston assembly 70 to form foam, and finally the foam exits from the foam channel 21.
Further, the pressing member 20 is provided at the top with a friction layer 25.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The utility model provides an external spring foam pump, its characterized in that includes enclosing cover (10), press piece (20) and foam pump body, press piece (20) to be established enclosing cover (10) top, the foam pump body includes cylinder (30), liquid pump section of thick bamboo (40) and piston main part, cylinder (30) with enclosing cover (10) fixed connection, cylinder (30) bottom is equipped with intercommunicating pore (31) and along spring holder (32) that intercommunicating pore (31) periphery set up, liquid pump section of thick bamboo (40) are passed through intercommunicating pore (31) intercommunication cylinder (30), be equipped with glass ball (50) in liquid pump section of thick bamboo (40), the piston main part is established in cylinder (30);
the piston main part includes air pump piston subassembly (60), liquid pump piston subassembly (70), spring (80) and seal assembly (90), air pump piston subassembly (60) follow press piece (20) activity, liquid pump piston subassembly (70) follow air pump piston subassembly (60) activity, spring (80) cover is in liquid pump piston subassembly (70) are last and the bottom supports spring holder (32), liquid pump piston subassembly (70) are in cylinder (30) with liquid pump section of thick bamboo (40) internal movement, seal assembly (90) include ring seal (91) and "<" sealing washer (92), ring seal (91) are fixed in intercommunicating pore (31) position, "<" sealing washer (92) are established the bottom and the top of liquid pump piston subassembly (70) support the bottom of ring seal (91).
2. An external spring foam pump according to claim 1, characterized in that the pressing member (20) is internally provided with a foam channel (21), and the foam channel (21) communicates the liquid pump piston assembly (70) with the liquid pump cartridge (40).
3. An external spring foam pump according to claim 1, characterized in that the liquid pump cylinder (40) comprises a fixed section (41), a small cylinder section (42) and a connecting section (43), the fixed section (41) is connected with the air cylinder (30), the small cylinder section (42) is arranged between the fixed section (41) and the connecting section (43), the glass bulb (50) is arranged in the small cylinder section (42), a limiting piece (44) for limiting the escape of the glass bulb (50) is arranged in the small cylinder section (42), and the connecting section (43) is used for connecting a hose.
4. An external spring foam pump according to claim 3, characterized in that the diameter of the fixed section (41) is larger than the diameter of the small section (42), and the diameter of the small section (42) is larger than the diameter of the connecting section (43).
5. The external spring foam pump according to claim 1, wherein a friction net (110) is fixed on the upper portion of the air pump piston assembly (60), and a limiting shoulder (24) for limiting movement of the friction net (110) is arranged in the pressing piece (20).
6. An external spring foam pump according to claim 1, characterized in that the outer cover (10) comprises a cylinder body (11) and a guide cylinder (12) arranged on the cylinder body (11), an internal thread (13) is arranged in the cylinder body (11), a first sleeve (22) and a second sleeve (23) are arranged at the lower part of the pressing piece (20), and the guide cylinder (12) is arranged between the first sleeve (22) and the second sleeve (23).
7. The external spring foam pump according to claim 1, wherein the air pump piston assembly (60) comprises an annular blade (61) and an annular piston (62), the annular blade (61) moves along with the pressing piece (20), the annular blade (61) is not contacted with the inner wall of the air cylinder (30), the annular piston (62) is arranged below the annular blade (61), the annular piston (62) and the inner cavity of the air cylinder (30) form an air pump chamber (120), and an air vent (63) is arranged on the annular piston (62).
8. An external spring foam pump according to claim 1, characterized in that the liquid pump piston assembly (70) comprises a piston seat (71) and a piston rod (72) sleeved in the piston seat (71), the piston seat (71) is arranged below the air pump piston assembly (60), a limiting block (73) propping against the top end of the spring (80) is arranged on the piston seat (71), and the "<" type sealing ring (92) is sleeved at the bottom of the piston seat (71).
9. The external spring foam pump of claim 8 wherein the stopper (73) is provided with a receiving groove (74), the bottom of the air pump piston assembly (60) is provided with a contact rod (64), and the contact rod (64) moves within the receiving groove (74).
10. An external spring foam pump according to claim 1, characterized in that the top of the pressing element (20) is provided with a friction layer (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322227771.1U CN220683350U (en) | 2023-08-18 | 2023-08-18 | External spring foam pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322227771.1U CN220683350U (en) | 2023-08-18 | 2023-08-18 | External spring foam pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220683350U true CN220683350U (en) | 2024-03-29 |
Family
ID=90410133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322227771.1U Active CN220683350U (en) | 2023-08-18 | 2023-08-18 | External spring foam pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220683350U (en) |
-
2023
- 2023-08-18 CN CN202322227771.1U patent/CN220683350U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |