CN205114005U - Pump core subassembly - Google Patents
Pump core subassembly Download PDFInfo
- Publication number
- CN205114005U CN205114005U CN201520820225.1U CN201520820225U CN205114005U CN 205114005 U CN205114005 U CN 205114005U CN 201520820225 U CN201520820225 U CN 201520820225U CN 205114005 U CN205114005 U CN 205114005U
- Authority
- CN
- China
- Prior art keywords
- piston
- piston rod
- pump housing
- seat
- pump
- 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
- 210000002435 tendon Anatomy 0.000 claims description 15
- 239000007788 liquid Substances 0.000 description 11
- 239000000839 emulsion Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 210000003205 muscle Anatomy 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000007634 remodeling Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- B05B11/1066—Pump inlet valves
- B05B11/1067—Pump inlet valves actuated by pressure
- B05B11/1069—Pump inlet valves actuated by pressure the valve being made of a resiliently deformable material or being urged in a closed position by a spring
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model provides a pump core subassembly, includes the pump body, inhales the piece, piston seat, piston, piston rod, upper cover and spring, and the upper cover is installed in the upper end of the pump body, inhales the piece and installs the lower tip at the pump body, and inside the pump body was located to piston seat and piston, the lower tip of piston rod stretched into in the pump body and matches with piston seat and piston, and its characterized in that is upwards stretched out in the pump body to the upper end of piston rod: the lower tip of piston rod is formed with radial boss, and open the centre of piston seat has the lower end of the piston rod of the confession male axially extending bore of portion, is equipped with the back -off portion that detains mutually with radial boss of being used for in the inside of piston seat. The utility model has the advantages of: this pump core subassembly's lower end of the piston rod portion is formed with radial boss, is equipped with the back -off portion that detains mutually with radial boss of being used for in the inside of piston seat, after the piston rod inserts the piston seat, and radial boss position that back -off portion can the grasping piston rod, the piston rod can be very tight with the piston seat cooperation to avoid appearing the piston seat obscission.
Description
Technical field
The utility model relates to a kind of emulsion pumps, especially relates to a kind of pump core assembly.
Background technology
Pump core assembly is the major part of emulsion pumps, existing pump core assembly generally all comprises the pump housing, inhales sheet, piston seat, piston, piston rod, upper cover and spring, wherein, upper cover is arranged on the upper end of the pump housing, inhale the bottom that sheet is arranged on the pump housing, piston seat and piston are located at pump body, and the bottom of piston rod to be stretched in the pump housing and matched with piston seat and piston, and the upper end of piston rod protrudes upward in the pump housing.In existing pump core assembly, the groove of piston rod and the convex tendon of piston seat can not be too dark, if too dark, mould easily pulls groove and convex tendon position when the demoulding, the groove of finally working it out and convex tendon are also shallow, thus cause piston seat easily to come off.In sum, need to be further improved existing pump core assembly.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned prior art present situation, provides a kind of piston seat not allow caducous pump core assembly.
The utility model solves the problems of the technologies described above adopted technical scheme: this pump core assembly, comprise the pump housing, inhale sheet, piston seat, piston, piston rod, upper cover and spring, described upper cover is arranged on the upper end of the pump housing, described suction sheet is arranged on the bottom of the pump housing, described piston seat and piston are located at pump body, the bottom of described piston rod to be stretched in the pump housing and is matched with described piston seat and piston, the upper end of described piston rod protrudes upward in the described pump housing, it is characterized in that: the bottom of described piston rod is formed with radial boss, the centre of described piston seat has the axially extending bore inserted for described piston-rod lower end portion, the back-off portion for interlocking with described radial boss is provided with in the inside of piston seat.
Preferably, described piston rod is the truncated cone-shaped structure that top is large, following is little in radial boss lower portion, and described back-off portion ringwise, has annular groove in the periphery in back-off portion.Like this, piston rod is in the process inserting piston seat, and back-off portion deformation can occur, and piston rod is easily inserted, and coordinate after putting in place, back-off portion restores back virgin state again, avoids piston seat to come off.
Further preferably, the face of cylinder above described radial boss has side direction inlet opening, the lateral wall of described piston seat bottom has vertical groove, described piston seat transverse plane has the horizontal groove be connected with described side direction inlet opening.There is granular object for smashing to pieces in liquid after vertical groove and pump housing inwall one work, and as the flowing groove of liquid flows upwards in the pump housing, after horizontal groove is set, is convenient to liquid and enters piston rod inner quickly through piston rod endoporus.
Further preferably, described piston has axial bore, is interference bearing fit between the lip edge on maximum limit, the upper and lower two ends of described piston and described pump housing inwall, is interference bearing fit between described axial bore and piston rod.Further, the friction force between piston and the pump housing is greater than the friction force between piston and piston rod, and like this, piston produces relative motion along in pump housing inwall motion process between energy and piston seat, thus realizes pumping of emulsion smoothly.
Further preferably, described upper cover lower end outside face is formed with a circle convex tendon, described pump housing upper end medial surface be provided with coordinate with described convex tendon fixing seal one enclose groove, the upper end of described upper cover is formed with a circle projection, described external spring is in the described pump housing, it is outer and offset with the upper end of piston rod that the upper end of spring is set in piston rod, and the lower end of spring is sheathed and be positioned on the projection of described upper cover.Like this, spring adopts outlet structure and is supported between piston rod and upper cover, and not only mounting structure is comparatively firm, and can avoid the liquid in the spring pollution pump housing, uses safer, also can avoid the phenomenon producing spring corrosion simultaneously.
Preferred as above-mentioned either a program, described pump housing lower end inside face is formed with location convex tendon, the inner bottom part of the pump housing has the annular protrusion raised up, and lower plane and the described annular protrusion of described suction sheet offset, and upper plane and the described location convex tendon of inhaling sheet offset.Like this, inhale sheet just can be coordinated by the fastening of muscle position and be fixed in the pump housing.
Further preferably, the central authorities of described suction sheet are provided with a horizontal block be sealed and matched with described annular protrusion, and lower plane and the described annular protrusion of described horizontal block offset, and described horizontal block is connected with described suction sheet medial surface by dowel.Like this, under dowel is in extended state, just annular protrusion and horizontal block can be combined together, and sealing effectiveness is better.
Compared with prior art, the utility model has the advantage of: the piston-rod lower end portion of this pump core assembly is formed with radial boss, the back-off portion for interlocking with radial boss is provided with in the inside of piston seat, after piston rod inserts piston seat, back-off portion can fasten the radial boss position of piston rod, piston rod coordinates with piston seat can be very tight, thus avoid occurring piston seat obscission.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the perspective exploded view of the utility model embodiment;
Fig. 3 is the structural representation of the piston seat of the utility model embodiment;
Fig. 4 is the structure cutaway view of the utility model embodiment;
Fig. 5 is the structure cutaway view after the utility model embodiment installs relevant auxiliary member;
Fig. 6 is the cutaway view of the utility model embodiment under virgin state;
Fig. 7 be the utility model embodiment head cap for the first time stressed press down after cutaway view;
Fig. 8 is the cutaway view of the utility model embodiment after head cap rises by elastic force for the first time;
Fig. 9 be the utility model embodiment head cap again stressed press down after cutaway view;
Figure 10 is the cutaway view of the utility model embodiment after head cap rises by elastic force again.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
As shown in Figures 1 to 4, the pump core assembly in the present embodiment comprises the pump housing 1, inhales sheet 2, piston seat 3, piston 4, piston rod 5, upper cover 6 and spring 7.
The mounting structure of upper cover is as follows: upper cover 6 is arranged on the upper end of the pump housing 1, upper cover 6 lower end outside face is formed with a circle convex tendon 61, the pump housing 1 upper end medial surface be provided with coordinate with convex tendon 61 fixing seal one enclose groove 11, like this, upper cover 6 is coordinated with the pump housing 1 fastening by muscle position and face.
The mounting structure of spring 7 is as follows: the upper end of upper cover 6 is formed with a circle projection 62, and spring 7 is placed on the pump housing 1, and it is outer and offset with the upper end of piston rod 5 that the upper end of spring 7 is set in piston rod 5, and the lower end of spring 7 is sheathed and be positioned on the projection 62 of upper cover 6.The outer postpone of spring 7, can avoid spring 7 to pollute liquid in the pump housing, use safer, also can avoid the phenomenon producing spring corrosion simultaneously.
It is inner that piston seat 3 and piston 4 are located at the pump housing 1, and the bottom of piston rod 5 to be stretched in the pump housing 1 and matched with piston seat 3 and piston 4.In the present embodiment, the bottom of piston rod 5 is formed with radial boss 51, and the centre of piston seat 3 has the axially extending bore 31 inserted for piston rod 5 bottom, is provided with the back-off portion 32 for interlocking with radial boss 51 in the inside of piston seat 3.Further, piston rod 5 is the truncated cone-shaped structure that top is large, following is little in radial boss 51 lower portion, and back-off portion 32 ringwise, has annular groove 35 in the periphery in back-off portion 32.Like this, piston rod 5 is in the process inserting piston seat 3, can deformation be there is in back-off portion 32, piston rod 5 is easily inserted, fastening radial boss 51, cooperation restores back virgin state after putting in place in back-off portion 32, piston rod 5 coordinates with piston seat 3 can be very tight, thus avoid occurring piston seat 3 obscission.
The face of cylinder above radial boss 51 has side direction inlet opening 52, the lateral wall of piston seat 3 bottom has vertical groove 33, piston seat 3 transverse plane has the horizontal groove 34 be connected with side direction inlet opening 52.In the present embodiment, vertical groove 33 and horizontal groove 34 all circumferentially interval are arranged.There is granular object for smashing to pieces in liquid after vertical groove 33 and the pump housing 1 inwall one work, and as the flowing groove of liquid flows upwards in the pump housing 1, after horizontal groove 34 is set, is convenient to liquid and enters piston rod inner quickly through piston rod 5 endoporus.
Piston 4 has axial bore 41, is interference bearing fit between the lip edge on maximum limit, piston about 4 two ends and the pump housing 1 inwall, is interference bearing fit between axial bore 41 and piston rod 5.Further, the friction force between piston 4 and the pump housing 1 is greater than the friction force between piston 4 and piston rod 5, and like this, piston 4 produces relative motion along in the pump housing 1 inwall motion process between energy and piston seat 3, thus realizes pumping of emulsion smoothly.
The mounting structure inhaling sheet 2 is as follows: the pump housing 1 lower end inside face is formed with location convex tendon 12, the inner bottom part of the pump housing 1 has the annular protrusion 13 raised up, inhale sheet 2 coordinated by the fastening of muscle position and be fixed on the bottom of the pump housing 1, particularly, the upper plane of inhaling sheet 2 offsets with location convex tendon 12, the central authorities of inhaling sheet 2 are provided with horizontal block 21, and lower plane and the annular protrusion 13 of horizontal block 21 are sealed and matched.In addition, horizontal block 21 is connected with suction sheet 2 medial surface by dowel 22 circumferentially spaced apart, under dowel 22 is in extended state, just annular protrusion 13 and horizontal block 21 can be combined together, and sealing effectiveness is better.
As shown in Figure 5, at the top of pump core assembly, head cap 8 is installed, is provided with outer cover 9 and great circle 10 in the outside of pump core assembly and head cap 8.
As shown in Fig. 6 to Figure 10, during the work of this pump core assembly, first, head cap 8 is stressed to be pressed down, and the gas in the pump housing 1 upwards flows out; Then, head cap 8 rises by elastic force resilience, and the liquid in bottle flows in the pump housing 1; Again, head cap 8 is again stressed to be pressed down, and the liquid flowed in the pump housing 1 upwards flows out; Finally, head cap 8 rises by elastic force resilience again, and the liquid in bottle flows in the pump housing 1 again.The specific works principle of this pump core assembly and working process and existing emulsion pumps similar, specifically do not launch to describe at this.
The foregoing is only preferred implementation of the present utility model; it should be pointed out that for those of ordinary skills, do not departing under principle prerequisite of the present utility model; can carry out multiple remodeling or improvement to the utility model, these are all regarded as within protection domain of the present utility model.
Claims (7)
1. a pump core assembly, comprise the pump housing (1), inhale sheet (2), piston seat (3), piston (4), piston rod (5), upper cover (6) and spring (7), described upper cover (6) is arranged on the upper end of the pump housing (1), described suction sheet (2) is arranged on the bottom of the pump housing (1), it is inner that described piston seat (3) and piston (4) are located at the pump housing (1), the bottom of described piston rod (5) to be stretched in the pump housing (1) and is matched with described piston seat (3) and piston (4), the upper end of described piston rod (5) protrudes upward in the described pump housing (1), it is characterized in that: the bottom of described piston rod (5) is formed with radial boss (51), the centre of described piston seat (3) has the axially extending bore (31) inserted for described piston rod (5) bottom, the back-off portion (32) for interlocking with described radial boss (51) is provided with in the inside of piston seat (3).
2. pump core assembly according to claim 1, it is characterized in that: described piston rod (5) is the truncated cone-shaped structure that top is large, following is little in radial boss (51) lower portion, described back-off portion (32) ringwise, has annular groove (35) in the periphery of back-off portion (32).
3. pump core assembly according to claim 1, it is characterized in that: on the face of cylinder of described radial boss (51) top, have side direction inlet opening (52), the lateral wall of described piston seat (3) bottom has vertical groove (33), the upper transverse plane of described piston seat (3) has the horizontal groove (34) be connected with described side direction inlet opening (52).
4. pump core assembly according to claim 1, it is characterized in that: described piston (4) has axial bore (41), being interference bearing fit between the lip edge on the upper and lower maximum limit, two ends of described piston (4) and the described pump housing (1) inwall, is interference bearing fit between described axial bore (41) and piston rod (5).
5. pump core assembly according to claim 1, it is characterized in that: described upper cover (6) lower end outside face is formed with a circle convex tendon (61), the described pump housing (1) upper end medial surface be provided with coordinate with described convex tendon (61) fixing seal one enclose groove (11), the upper end of described upper cover (6) is formed with a circle projection (62), described spring (7) is placed on the described pump housing (1), the upper end of spring (7) is set in piston rod (5) and offset with the upper end of piston rod (5) outward, the lower end of spring (7) is sheathed and be positioned on the projection (62) of described upper cover (6).
6. the pump core assembly according to claim arbitrary in claim 1 to 5, it is characterized in that: the described pump housing (1) lower end inside face is formed with location convex tendon (12), the inner bottom part of the pump housing (1) has the annular protrusion (13) raised up, lower plane and the described annular protrusion (13) of described suction sheet (2) offset, and upper plane and the described location convex tendon (12) of inhaling sheet (2) offset.
7. pump core assembly according to claim 6, it is characterized in that: the central authorities of described suction sheet (2) are provided with a horizontal block (21) be sealed and matched with described annular protrusion (13), lower plane and the described annular protrusion (13) of described horizontal block (21) offset, and described horizontal block (21) is connected with described suction sheet (2) medial surface by dowel (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520820225.1U CN205114005U (en) | 2015-10-21 | 2015-10-21 | Pump core subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520820225.1U CN205114005U (en) | 2015-10-21 | 2015-10-21 | Pump core subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205114005U true CN205114005U (en) | 2016-03-30 |
Family
ID=55569635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520820225.1U Active CN205114005U (en) | 2015-10-21 | 2015-10-21 | Pump core subassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205114005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110192705A (en) * | 2019-05-30 | 2019-09-03 | 浙江晟祺实业有限公司 | A kind of cosmetics containers |
-
2015
- 2015-10-21 CN CN201520820225.1U patent/CN205114005U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110192705A (en) * | 2019-05-30 | 2019-09-03 | 浙江晟祺实业有限公司 | A kind of cosmetics containers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 315400 3 Rong Guang road, Yuyao, Zhejiang Patentee after: Zhejiang Sheng Qi Industrial Co., Ltd. Address before: 315400 No. 55 Changfengqiao Road, Lanjiang Street, Yuyao City, Zhejiang Province Patentee before: Yuyao Shengqi Plastic Co., Ltd. |
|
| CP03 | Change of name, title or address |