CN2198405Y - Gravity driven plunger pump - Google Patents
Gravity driven plunger pump Download PDFInfo
- Publication number
- CN2198405Y CN2198405Y CN 94211324 CN94211324U CN2198405Y CN 2198405 Y CN2198405 Y CN 2198405Y CN 94211324 CN94211324 CN 94211324 CN 94211324 U CN94211324 U CN 94211324U CN 2198405 Y CN2198405 Y CN 2198405Y
- Authority
- CN
- China
- Prior art keywords
- piston
- pump
- screw rod
- shaft
- reciprocating
- 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.)
- Expired - Fee Related
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- Reciprocating Pumps (AREA)
Abstract
The utility model relates to a gravity driven plunger pump, comprising a pump body, a pump shaft, a piston and a return spring. The utility model is characterized in that the pump shaft is vertically arranged in the pump body, the pump shaft is connected with the piston via a gear driving device, and the piston is driven by the pump shaft; the piston is moved backwards and forwards in the horizontal piston cavity of the pump body, a screw rod is coated by the piston, and the reciprocating movement of the piston is pushed by the screw rod. The utility model which has few energy consumption and small volume utilizes gravity driven, which is especially suitable for vehicles.
Description
The utility model relates to a kind of reciprocating pump, particularly a kind of reciprocating piston pump that utilizes gravity to drive.
The existing piston pump, for example rotary piston pump and reciprocating piston pump mostly drive by motor or motor, seldom can utilize gravity to drive, and in most of the cases, gravity is a kind of natural driving source, for example, and various forms of transport such as bicycle, automobile, if can utilize weight-driven vehicle running, then can not only economize the energy but also easy to use.
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of and can utilize reciprocating pump that gravity drives, that volume is little, simple in structure.
The purpose of this utility model is finished by following technical proposal:
A kind of reciprocating pump of weight-driven comprises the pump housing, pump shaft, Returnning spring and piston, pump shaft vertically is installed in the pump housing, Returnning spring is equipped with in the pump shaft lower end, pump shaft links to each other with piston by gear drive, driven plunger, make to-and-fro motion in the horizontal piston chamber of piston in the pump housing, gear drive comprises two spur wheels of the tooth bar that is arranged on the pump shaft and the engagement of two tooth bars.Gear is fixedly mounted on the screw rod, and piston sleeve is contained on the screw rod, drives reciprocating motion of the pistons by screw rod.
Reciprocating pump of the present utility model can be by the relative pump housing to-and-fro motion of weight-driven pump shaft, and gear drive drives the screw rod rotation, and screw rod promotes reciprocating motion of the pistons.This pump consumes energy less, volume is little, and particularly suitable is contained on the vehicle.
With reference to the accompanying drawings structure of the present utility model is described in detail:
Fig. 1 is the cross-sectional view of the utility model reciprocating pump.
Fig. 2 is the schematic representation of pump shaft rack and pinion meshing relation.It is the side direction view of Fig. 1 pump shaft.
See figures.1.and.2, the reciprocating pump of weight-driven comprises that the pump housing 2, pump shaft 1, Returnning spring 13, piston 8, pump shaft vertically are installed in the pump housing 2, pump shaft 1 links to each other with piston 8 by gear drive, and driven plunger 8 makes piston 8 to-and-fro motion in the horizontal piston chamber 11 of the pump housing 2.
Gear drive comprises two tooth bars that are arranged on the pump shaft 1 and twice spur wheels that mesh with two tooth bars, and gear is fixedly mounted on the screw rod 4 or forms whole with screw rod 4.Piston 8 is sleeved on the screw rod 4.
Have groove 17 on the two a circumferential surface of piston 8 place's circumferential surfacies and piston cavity 11 inner peripheral surfaces steel ball 13 also is housed in groove 17, bar can prevent that piston 8 from rotating with screw rod 4.
It is square shaft part 9 that there is one section cross section at the middle part of pump shaft 1, and tooth bar is arranged on these shaft part 9 both sides, also can directly process the both sides at shaft part 9.
Like this, in the present embodiment, be provided with spur wheel 10 and 12 on two, corresponding piston chamber 11 and piston also are provided with two covers.
Have filler opening 5 and oil drain out 6 on the pump housing 2 of piston cavity 11 ends, piston cavity 11 ends all are equipped with plug.
This gravity-driven pump can be used on the vehicle, for example, and bicycle, tricycle, motorcycle, automobile etc.As long as pump shaft one end is linked to each other with gravity source, pump cover is fixed on the car body, and the gravity pressuring spring just can drive the pump shaft 1 relative pump housing 2 to-and-fro motion.Perhaps will pump shaft the upper end be fixed on certain position of vehicle, end cap and car crossbeam etc. are similar can accept gravity source and mobile element links to each other, makes the whole pump housing upper and lower mobile with respect to pump shaft.
As long as the pump housing and pump shaft relative to upper and lower moving arranged, just can transform by driven gear, make the screw rod rotation, thus the driven plunger to-and-fro motion.
As can be seen from the above, this pump not only can utilize gravity to drive, and structure is very simple, and volume is little, and is easy to use, saves the energy.
Claims (9)
1, a kind of reciprocating pump of weight-driven, comprise the pump housing (2), pump shaft (1), piston (8), it is characterized in that, described pump shaft (1) is vertically to be installed in the pump housing (2), pump shaft (1) links to each other with piston (8) by gear drive, driven plunger pump (8), make to-and-fro motion in the horizontal piston chamber (11) of piston (8) in the pump housing (2), described gear drive comprise the tooth bar that is arranged on the pump shaft (1) and with the tooth bar meshed gears, gear is fixedly mounted on the screw rod, piston (8) is sleeved on screw rod (4), in the lower end of pump shaft (1) Returnning spring (15) is housed.
2, reciprocating pump according to claim 1 is characterized in that, has spiral chute on the outer peripheral surface of screw rod (4).
3, reciprocating pump according to claim 2 is characterized in that, has on the inner peripheral surface of piston (8) and the corresponding spiral chute of described spiral chute.
4, according to claim 2 or 3 described reciprocating pumps, it is characterized in that, in screw rod outer circumferential face and the two corresponding spiral chute of piston inner peripheral surface, steel ball (5) is housed.
5, reciprocating pump according to claim 1 is characterized in that having groove on a part of circumferential surface of piston (8) outer peripheral surface and piston cavity (11) inner peripheral surface, and steel ball (13) is housed in this groove.
6, reciprocating pump according to claim 1 is characterized in that, end cap (10) is housed in pump housing lower end, in the lower end of pump shaft (1) spring seat (14) is housed, and between end cap (10) and spring seat (14) spring assembly (15) is housed.
7, reciprocating pump according to claim 1 is characterized in that, it is square shaft part (9) that described pump shaft (1) has one section shape of cross section, and two tooth bars are arranged on the two sides of shaft part (9).
8, reciprocating pump according to claim 7 is characterized in that, described tooth bar be two and with the engagement of two spur wheels.
9, the reciprocating pump of stating according to Claim 8 is characterized in that, described piston (8), and screw rod (4) has two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94211324 CN2198405Y (en) | 1994-05-21 | 1994-05-21 | Gravity driven plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94211324 CN2198405Y (en) | 1994-05-21 | 1994-05-21 | Gravity driven plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2198405Y true CN2198405Y (en) | 1995-05-24 |
Family
ID=33828481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94211324 Expired - Fee Related CN2198405Y (en) | 1994-05-21 | 1994-05-21 | Gravity driven plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2198405Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998023861A1 (en) * | 1996-11-26 | 1998-06-04 | Lin Yng Lang | Gas compressor |
| CN105937502A (en) * | 2016-06-24 | 2016-09-14 | 张家港市众鑫风机有限公司 | Threaded rod type draught fan |
-
1994
- 1994-05-21 CN CN 94211324 patent/CN2198405Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998023861A1 (en) * | 1996-11-26 | 1998-06-04 | Lin Yng Lang | Gas compressor |
| CN105937502A (en) * | 2016-06-24 | 2016-09-14 | 张家港市众鑫风机有限公司 | Threaded rod type draught fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |