CN202612317U - Anti-off position pin - Google Patents
Anti-off position pin Download PDFInfo
- Publication number
- CN202612317U CN202612317U CN 201220136094 CN201220136094U CN202612317U CN 202612317 U CN202612317 U CN 202612317U CN 201220136094 CN201220136094 CN 201220136094 CN 201220136094 U CN201220136094 U CN 201220136094U CN 202612317 U CN202612317 U CN 202612317U
- Authority
- CN
- China
- Prior art keywords
- pin
- locating stud
- drop
- heave portion
- hole
- 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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- Tires In General (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The utility model discloses an anti-off position pin, which comprises a body, wherein an elastic bulge of an outwardly raised body is arranged on the body around the circumferential direction of the body. After entering a pin hole, the anti-off position pin is closely pressed on the wall of the pin hole through instantaneously rebounding of the elastic bulge, thereby guaranteeing reliable connection and position between two parts, and being prevented from falling off by utilizing difference of outer diameters of various parts. The anti-off position pin is simple in structure and easy to process.
Description
Technical field
The utility model relates to a kind of locating stud, relates in particular to the accurately Drop-proof locating stud of location of a kind of assurance two parts.
Background technique
In the existing technology, often relate to the location after two parts that connect are connected, and the common part that adopts is resilient key or cotter pin.But in mechanism, have relatively high expectations to interconnecting between each part to cooperate, the moment of torsion that possibly transmit between each part is bigger, therefore, causes locating stud to come off easily, and then causes failure mechanisms.For the shear strength that improves resilient key, improve reliability of positioning, existing technology also adopts assembling primary and secondary pin or increases the method for assembling magnitude of interference, if but mechanism under rugged environment, work, still can't fundamentally stop coming off of locating stud.With the gearshift mechanism of automotive transmission is example; Gearshift retaining problem phenomenon not in place, wrong takes place again and again in the driving shift process; And the main cause that this problem occurs to be locating stud in the speed changer positioning means come off, cause that a locating element can not reliably be connected on gearshift axle and the axle.
The model utility content
For solving the deficiency that exists in the existing technology, the utility model provides a kind of Drop-proof locating stud, can effectively guarantee reliably to locate between two parts and be connected, and simple in structure, easy processing.
For realizing above-mentioned purpose, the Drop-proof locating stud of the utility model comprises body, and the middle part of body is provided with the circumferentially elastic heave portion of the evagination body of setting of ring body.
As the qualification to the utility model, described elastic heave portion and body coaxial line are provided with.
As the further qualification to aforesaid way, described elastic heave portion is a drum type.
As the improvement to the utility model, said body interior is the hollow setting.
As improvement, in elastic heave portion, be provided with a plurality of gullies that are connected with body interior to aforesaid way.
As aforesaid way is further improved, the utility model also has a kind of improvement, said gully along body shaft to laterally arranging.
Adopt as above technological scheme, its effect is following:
1, but the drum type shape elastic heave portion moment resilience after locating stud gets into pin-and-hole on the shank of location is tight with the pin-and-hole wall pressure, thereby guarantees reliable connection of two parts and location.
2, elastic heave portion be provided with a plurality ofly be connected with body interior, along body shaft to the gully that laterally arranges, make locating stud get into pin-and-hole after, elastic heave portion shrinks resilience more easily.
Description of drawings
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to specify.
Fig. 1 is the utility model embodiment's a structural representation;
Fig. 2 is a kind of application component structural representation of Fig. 1;
Fig. 3 installs the mated condition schematic representation for Fig. 1 and Fig. 2.
Among the figure: 1, body; 2, elastic heave portion; 3, gully; 4, axle; 5, part; 6, first pin-and-hole; 7, second pin-and-hole.
Embodiment
The Drop-proof locating stud that the utility model relates to; It is on the basis of existing pin shape structure; Set up an elastic heave portion, so that in the through hole of this locating stud on inserting two parts to be installed the time, this elastic heave portion is compressed; And when entering into the mounting point in elastic heave portion, this elastic heave portion can upspring so that part to be installed is carried out location positioning.
Drop-proof locating stud by present embodiment shown in Figure 1; It comprises body 1; Be provided with ring body 1 elastic heave portion 2 that be provided with, evagination body 1 at the middle part of body 1, elastic heave portion 2 and body 1 coaxial line setting are by finding out among the figure; The end face diameter of elastic heave portion 2 is greater than the diameter of body 1, and elastic heave portion 2 is drum type.In addition; Elastic heave portion 2 can be the structure of on the basis of body 1, setting up, also can be one-body molded with body 1, and elastic heave portion 2 rolls with all flexible material of body 1 and forms; Because this rolls; Make body 1 have a unconjugated gap, like this, can strengthen the elastic deformability of body 1.
For enhance elasticity ridge 2 crumple ability under external force, in elastic heave portion 2, be provided with a plurality of gullies 3, in the present embodiment, gully 3 is along the parallel to an axis setting of body 1.
Be connected position structure with part with axle and be example, as shown in Figure 2, in the time of in axle 4 is inserted into part 5; First pin-and-hole 6 that axle 4 is provided with is corresponding with second pin-and-hole, 7 positions that part 5 is provided with; The dead in line of the two, and when being provided with, the aperture of first pin-and-hole 6 is greater than the aperture of second pin-and-hole 7.The diameter of the aperture of second pin-and-hole 7 and body 1 is corresponding, so that body 1 can insert in second pin-and-hole 7.
In use, an end of the body 1 of locating stud is inserted by second pin-and-hole 7; In this insertion process; Because the diameter of elastic heave portion 2 greater than the diameter of body 1, when elastic heave portion 2 contacts second pin-and-hole 7, receives the pressure effect of second pin-and-hole 7; With 2 conquassation of elastic heave portion, can insert in second pin-and-hole 7 to guarantee elastic heave portion 2; When elastic heave portion 2 is positioned at first pin-and-hole 6; At this moment, because the aperture of first pin-and-hole 6 is greater than the aperture of second pin-and-hole 7, elastic heave portion 2 is in entering into first pin-and-hole 6 time fully; Elastic force through self expands; In first pin-and-hole 6, concrete state is as shown in Figure 3 with final expansion, and then has realized the location positioning between axle 4 and the part 5.
Claims (6)
1. a Drop-proof locating stud comprises body (1), it is characterized in that: be provided with the circumferentially elastic heave portion (2) of the evagination body (1) of setting of ring body (1) at the middle part of body (1).
2. Drop-proof locating stud according to claim 1 is characterized in that: described elastic heave portion (2) and body (1) coaxial line setting.
3. Drop-proof locating stud according to claim 1 and 2 is characterized in that: described elastic heave portion (2) is a drum type.
4. Drop-proof locating stud according to claim 1 and 2 is characterized in that: said body (1) is inner to be the hollow setting.
5. Drop-proof locating stud according to claim 4 is characterized in that: in elastic heave portion (2), be provided with a plurality of and gully (3) body (1) internal communication.
6. Drop-proof locating stud according to claim 5 is characterized in that: said gully (3) are along body (1) parallel to an axis setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220136094 CN202612317U (en) | 2012-03-31 | 2012-03-31 | Anti-off position pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220136094 CN202612317U (en) | 2012-03-31 | 2012-03-31 | Anti-off position pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202612317U true CN202612317U (en) | 2012-12-19 |
Family
ID=47346019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220136094 Expired - Fee Related CN202612317U (en) | 2012-03-31 | 2012-03-31 | Anti-off position pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202612317U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271250A (en) * | 2018-12-04 | 2020-06-12 | 安徽美芝制冷设备有限公司 | Piston assembly and compressor |
-
2012
- 2012-03-31 CN CN 201220136094 patent/CN202612317U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271250A (en) * | 2018-12-04 | 2020-06-12 | 安徽美芝制冷设备有限公司 | Piston assembly and compressor |
| CN111271250B (en) * | 2018-12-04 | 2021-10-08 | 安徽美芝制冷设备有限公司 | Piston assembly and compressor |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20200331 |