CN202833103U - Plunger - Google Patents
Plunger Download PDFInfo
- Publication number
- CN202833103U CN202833103U CN 201220412300 CN201220412300U CN202833103U CN 202833103 U CN202833103 U CN 202833103U CN 201220412300 CN201220412300 CN 201220412300 CN 201220412300 U CN201220412300 U CN 201220412300U CN 202833103 U CN202833103 U CN 202833103U
- Authority
- CN
- China
- Prior art keywords
- plunger
- connecting rod
- cylinder
- conduit
- 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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Abstract
The utility model relates to the technical field of plunger pumps, in particular to a plunger of a plunger pump. The plunger comprises a cylinder and a ball. A connection rod extending outwards is arranged on the top portion of the cylinder, a groove matching with the connection rod is arranged in the middle of the ball, and the connection rod is inserted in the groove and matched or in interference fit with the groove. According to the plunger, a combination structure is used, so that the structure of the plunger is simple, the exchanging is easy, and the cost is reduced.
Description
Technical field
The utility model relates to a kind of plunger pump technique field, specifically, relates to a kind of plunger of plunger pump.
Background technique
Plunger is the strength member of the normal operation of plunger pump, and the performance of plunger directly has influence on the service behaviour of plunger pump, and existing plunger all is that employing is one-body molded, because plunger is very high in frequency of utilization, and easily wearing and tearing; Often need to check replacing, change whole plunger and cause waste of material only at the spheroid at top because the wearing part of plunger is general that integrated plunger preparation process is comparatively complicated simultaneously, cost of production is higher.Therefore the cost compare that causes plunger pump to use is high.
Summary of the invention
The purpose of this utility model is to solve the deficiencies in the prior art, and a kind of plunger is provided, and this plunger adopts composite structure, and processing is simple and replacing is convenient, reduces user cost.
The technical solution adopted in the utility model is:
A kind of plunger comprises cylinder and spheroid, the top of the described cylinder connecting rod that stretches out, and the middle part of described spheroid is provided with the conduit that is complementary with connecting rod, and connecting rod inserts conduit, and connecting rod cooperates or interference fit with conduit.
Further, described cylinder is hollow cylinder, and column side face is provided with through hole.
Further, the bottom of described connecting rod is provided with round platform.
Further, described conduit is groove, and the cross section of groove is T-shaped, and described connecting rod cross section is T or L shaped.
As the equivalent variations of this technological scheme, described conduit is groove, and the cross section of groove is inverted L shaped, and described connecting rod cross section is L-shaped.
The beneficial effects of the utility model are: the utility model adopts composite unit structure, so that the structure of plunger becomes simply, changes easily, reduces cost.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is decomposition texture schematic representation of the present utility model.
Fig. 3 is partial schematic sectional view of the present utility model.
In the accompanying drawing:
1---cylinder 2---spheroid
11---connecting rod 12---round platform
13---through hole 21---conduit.
Embodiment
Below in conjunction with accompanying drawing 1 to Fig. 3 the utility model is further described.
Embodiment: see Fig. 1, a kind of plunger comprises cylinder 1 and spheroid 2, the top of described cylinder 1 connecting rod 11 that stretches out, the middle part of described spheroid 2 is provided with the conduit 21 that is complementary with connecting rod 11, and connecting rod 11 inserts conduit 21, and connecting rod 11 cooperates or interference fit with conduit 21.
At spheroid 2 conduit 21 is set, in conduit 21 can be contained in connecting rod 11, thereby cooperates with conduit 21 or interference fit is fixedly connected with spheroid 2 with cylinder 1 by connecting rod 11.If plunger has damage in the movement process of plunger pump, can spheroid 2 be taken out from cylinder 1 by the mode of expanding with heat and contract with cold of differential temperature, directly change spheroid 2 and get final product.Simple in structure, it is convenient to change.
Further, described cylinder 1 is hollow cylinder 1, and cylinder 1 side is provided with through hole 13(referring to Fig. 3).
Plunger is at the cylinder interior frequent activity, therefore and the friction between the cylinder body very large, produce larger heat; Cylinder 1 is set to hollow, and in cylinder 1 side through hole 13 is set, be conducive to cylinder 1 heat radiation, prolong its working life.
Further, the bottom of described connecting rod 11 is provided with round platform 12(referring to Fig. 2).
Because cylinder 1 is hollow-core construction, it is less that its end face bears dynamics; After round platform 12 was set, spheroid 2 was connected with cylinder 1 by round platform 12, reduced the impact of 2 pairs of cylinder 1 end face parts of spheroid.
Further, described conduit 21 is groove, and the cross section of groove is T-shaped, and described connecting rod 11 cross sections are T or L shaped (referring to Fig. 3).
Because the plunger operation is very frequent, for the spheroid 2 that prevents plunger separates with cylinder 1, conduit 21 is designed to T-slot, after connecting rod 11 inserts T-slot, thick or the bending with the top pier of connecting rod 11 forms T shapes or L shaped so that connecting rod 11 is corresponding, and then so that cylinder 1 is riveted or clampings by connecting rod 11 and spheroid 2, this Placement is more firm.
As the equivalent variations of this technological scheme, described conduit 21 is groove, and the cross section of groove is inverted L shaped, and described connecting rod 11 cross sections are L-shaped.
When the cross section of groove is inverted when L shaped, after connecting rod 11 inserts grooves, the top of connecting rod 11 is bent to form fixture block, so that connecting rod 11 and spheroid 2 clampings.
Below only be the application's preferred embodiment, equivalent technical solutions on this basis still falls into the application protection domain.
Claims (5)
1. plunger is characterized in that: comprise cylinder and spheroid, and the top of the described cylinder connecting rod that stretches out, the middle part of described spheroid is provided with the conduit that is complementary with connecting rod, and connecting rod inserts conduit, and connecting rod cooperates or interference fit with conduit.
2. a kind of plunger according to claim 1, it is characterized in that: described cylinder is hollow cylinder, and column side face is provided with through hole.
3. a kind of plunger according to claim 1, it is characterized in that: the bottom of described connecting rod is provided with round platform.
4. a kind of plunger according to claim 1, it is characterized in that: described conduit is groove, and the cross section of groove is T-shaped, described connecting rod cross section is T or L shaped.
5. a kind of plunger according to claim 1, it is characterized in that: described conduit is groove, and the cross section of groove is inverted L shaped, described connecting rod cross section is L-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412300 CN202833103U (en) | 2012-08-20 | 2012-08-20 | Plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412300 CN202833103U (en) | 2012-08-20 | 2012-08-20 | Plunger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833103U true CN202833103U (en) | 2013-03-27 |
Family
ID=47944824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220412300 Expired - Fee Related CN202833103U (en) | 2012-08-20 | 2012-08-20 | Plunger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833103U (en) |
-
2012
- 2012-08-20 CN CN 201220412300 patent/CN202833103U/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: 20130327 Termination date: 20140820 |
|
| EXPY | Termination of patent right or utility model |