CN203978811U - Plunger crankshaft-link rod device - Google Patents
Plunger crankshaft-link rod device Download PDFInfo
- Publication number
- CN203978811U CN203978811U CN201420294771.1U CN201420294771U CN203978811U CN 203978811 U CN203978811 U CN 203978811U CN 201420294771 U CN201420294771 U CN 201420294771U CN 203978811 U CN203978811 U CN 203978811U
- Authority
- CN
- China
- Prior art keywords
- plunger
- link rod
- crankshaft
- clamping block
- groove
- 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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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a kind of plunger crankshaft-link rod device, it comprises crankshaft-link rod, plunger and pin, and one end of described plunger is provided with the clamping block with through hole, and the joint of crankshaft-link rod is provided with notched draw-in groove, the mutual clamping of clamping block and draw-in groove; Described draw-in groove is communicated with the through hole on joint, and described pin runs through the through hole at joint two ends and the through hole on clamping block.Advantage is: of the present utility model simple in structure, clamping block coordinates the stressing conditions that can effectively share pin with draw-in groove clamping, allows its longer service life; Even if the clamping relation after pin ruptures at work between it can allow equipment work on.
Description
Technical field
The utility model belongs to the pump part technical field on washing machine, especially relates to a kind of plunger crankshaft-link rod device.
Background technique
Plunger crankshaft-link rod is parts conventional on washing machine plunger pump, and it is mainly connected cooperating with bent axle.The structure of plunger crankshaft-link rod device is at present: on plunger, offer through hole, offer equally the through hole being mated, then by pin, it is coupled together on crankshaft-link rod; In the middle of the plunger crankshaft-link rod device busy of this structure, crankshaft-link rod easily causes eccentricity pressure to plunger, causes plunger wear and work also extremely unstable; Be exactly pin in addition long-time stressed rear yielding and loosening, likely cause the damage of equipment, not only working life is short and have a potential safety hazard; Therefore be necessary to be improved.
Summary of the invention
The purpose of this utility model is the deficiency existing for above-mentioned prior art, and a kind of plunger crankshaft-link rod device is provided, and it has the advantages that to use safety and stability and long service life.To achieve these goals, the technological scheme that the utility model adopts is: a kind of plunger crankshaft-link rod device, it comprises crankshaft-link rod, plunger and pin, one end of described plunger is provided with the clamping block with through hole, the joint of crankshaft-link rod is provided with notched draw-in groove, the mutual clamping of clamping block and draw-in groove; Described draw-in groove is communicated with the through hole on joint, and described pin runs through the through hole at joint two ends and the through hole on clamping block.
Described clamping block is spherical or hemisphere or square; Described draw-in groove is consistent with the shape of clamping block.
The exterior edge face of described pin flushes with the exterior edge face of joint.
Adopt after said structure, the advantage that compared to the prior art the utility model had is: of the present utility model simple in structure, clamping block coordinates the stressing conditions that can effectively share pin with draw-in groove clamping, allows its longer service life; Even if the clamping relation after pin ruptures at work between it can allow equipment work on.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment 1 structural representation.
Fig. 2 is the utility model embodiment 1 piston structure schematic diagram.
Fig. 3 is the utility model embodiment 1 crankshaft rod structure schematic diagram.
Fig. 4 is the utility model embodiment 2 structural representations.
Embodiment
The following stated is only preferred embodiment of the present utility model, does not therefore limit protection domain of the present utility model, below in conjunction with drawings and Examples, the utility model is further illustrated.
Embodiment 1, sees shown in Fig. 1 to Fig. 3: a kind of plunger crankshaft-link rod device, comprises crankshaft-link rod 10, plunger 20 and pin 30.One end of described plunger 20 is provided with clamping block 21, and being shaped as of clamping block 21 is spherical; The joint 11 of described crankshaft-link rod 10 is provided with notched draw-in groove 12, and the shape of draw-in groove 12 is consistent with the shape of clamping block 21, and its cross section is notched circle, and clamping block 21 is engaged on joint 11 with draw-in groove 12 clampings.On clamping block 21 and joint 11, offer equally isometrical through hole, the center of through hole is all positioned on same medial axis; Pin 30 runs through the through hole at joint 11 two ends and the through hole on clamping block 21, and its exterior edge face flushes with the exterior edge face of joint 11.This structure can effectively be shared the stress pressure of pin 30, allows more stable work, and can also prevent that pin 30 from damaging at work, increases the service life.And the clamping between clamping block 21 and draw-in groove 12 closes to tie up to after pin 30 damages and also can work on, prevent from causing equipment to work and to eliminate safe hidden trouble due to the unexpected damage of pin 30.
Embodiment 2, see Fig. 4: embodiment 2 domain embodiment 1 is basic identical, and its difference is: the structure of clamping block 21 is that the structure of square, same draw-in groove 12 is also square, and this snap fit can reach embodiment 1 effect equally.Certainly, clamping block 21 can also be other structure with the shape of draw-in groove 12, such as hemisphere also can.
Claims (3)
1. a plunger crankshaft-link rod device, it is characterized in that: comprise crankshaft-link rod (10), plunger (20) and pin (30), one end of described plunger (20) is provided with the clamping block (21) with through hole, the joint 11 of crankshaft-link rod (10) is provided with notched draw-in groove (12), clamping block (21) and draw-in groove (12) clamping mutually; Described draw-in groove (12) is communicated with the through hole on joint (11), and described pin (30) runs through the through hole at joint (11) two ends and the through hole on clamping block (21).
2. plunger crankshaft-link rod device according to claim 1, is characterized in that: described clamping block (21) is spherical or hemisphere or square; Described draw-in groove (12) is consistent with the shape of clamping block (21).
3. plunger crankshaft-link rod device according to claim 2, is characterized in that: the exterior edge face of described pin (30) flushes with the exterior edge face of joint (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420294771.1U CN203978811U (en) | 2014-06-04 | 2014-06-04 | Plunger crankshaft-link rod device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420294771.1U CN203978811U (en) | 2014-06-04 | 2014-06-04 | Plunger crankshaft-link rod device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203978811U true CN203978811U (en) | 2014-12-03 |
Family
ID=51976263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420294771.1U Expired - Fee Related CN203978811U (en) | 2014-06-04 | 2014-06-04 | Plunger crankshaft-link rod device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203978811U (en) |
-
2014
- 2014-06-04 CN CN201420294771.1U patent/CN203978811U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20150604 |
|
| EXPY | Termination of patent right or utility model |