CN201898271U

CN201898271U - Novel clock spring positioning pin

Info

Publication number: CN201898271U
Application number: CN2010206203276U
Authority: CN
Inventors: 岳广娜; 周大永; 刘卫国; 吴成明; 李书福; 杨健; 赵福全
Original assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely Automobile Research Institute Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely Automobile Research Institute Co Ltd
Priority date: 2010-11-24
Filing date: 2010-11-24
Publication date: 2011-07-13
Anticipated expiration: 2020-11-24

Abstract

The utility model discloses a novel clock spring positioning pin. A pin head (1) of the positioning pin is cuboid-shaped; the two sides of the pin head (1) extends backwards to form two side edges (2); an included angle is formed between the two side edges (2); the two sides close to the pin head (1) are respectively provided with a barb-shaped protruding head (4); and the protruding heads (4) are closely clamped with a clock spring and a pin hole arranged on an outer packing of the clock spring, so the clock spring and the outer packing of the clock spring can throughout keep a centering state.

Description

A kind of novel clock spring alignment pin

Technical field

The utility model relates to a kind of fixture, and especially a kind of have clamping function and a little novel clock spring alignment pin of volume.

Background technology

The shank of most in the market clock spring alignment pin is cylindrical shape or strip, is used for fixing the relative position of clock spring and clock spring external packing; The cylinder or the alignment pin of strip structure are easy after installation crosses pine or tension causes described alignment pin to take off mistake, loses the effect of the relative position of fixing described clock spring and its external packing; On the described in addition alignment pin buckle structure is not set, the contact area that needs to increase with both increases frictional force, guarantees that both are in the centering state all the time, and such structure has not only increased the volume of described alignment pin, has also improved manufacturing cost.

It is a kind of that open and Granted publication number has disclosed a kind of alignment pin for the utility model of CN 2908891Y in China; Described alignment pin includes pin head and pin, and described pin head and described pin are fixedly connected into an integral body, and at least one air discharge duct is arranged on the body surfaces of described pin, can conveniently install and take out alignment pin; Such structure is not provided with buckle structure, makes when the object that is fixed rotates that easily the object of can't guaranteeing to be fixed remains the centering state owing to pine being installed or tension causes described alignment pin to take off mistake; In addition, described alignment pin need be by increasing length increasing the contact area with the object that is fixed, and then increase alignment pin and the frictional force that is fixed between the object guarantees to play fixation, and such structure has improved the cost of the manufacturing of described alignment pin.

Summary of the invention

The novel purpose of this realization is to solve clock spring alignment pin volume and greatly and when rotated makes the problem that fixing clock spring and its external packing can't keep the centering state owing to cross pine or tension easily, provide a kind of volume little and guarantee described clock spring and its external packing be in the novel clock spring alignment pin of centering state all the time.

In order to reach above-mentioned technical goal, this realization is novel to provide a kind of novel clock spring alignment pin; The pin head of described alignment pin is rectangular-shaped, extends back from described pin head both sides to form two sides; Form angle between described two sides, and be respectively arranged with barb-like prominent head in both sides near described pin head.

Described novel clock spring alignment pin is respectively arranged with the prominent head of barb dress on two sides, when described two sides were squeezed, the angle between two sides reduced, and makes the user clock spring alignment pin can be pushed in the pin-and-hole; When the pressure that is applied on the described side is removed, described two sides are because the elastic force of self need return to the position, but because the width of described pin-and-hole is less than the distance between original two sides, make two sides can't return to original angle angle, thereby be squeezed in the described pin-and-hole, and described prominent head closely is connected on the described pin-and-hole, fix the relative position of clock spring and its external packing and make both remain the centering state; Because need not to increase frictional force just can play fixation, the volume of described novel clock spring alignment pin is little, thereby has reduced the volume of described clock spring external packing, has reduced the manufacturing cost of described clock spring alignment pin.

As further prioritization scheme, two sides of described alignment pin are isometric, and terminal linking to each other forms a V font trailing edge to described pin head direction depression; The trailing edge of V font when making that the user clamps two sides of described alignment pin to described pin head direction depression, cooperate whole alignment pin to insert in the pin-and-hole; Fix as the user discharge the pressure that is applied on the described side behind the position of described alignment pin after, described V-type trailing edge can be squeezed in the described pin-and-hole described two sides in conjunction with the elastic force of side by the elastic force of self, and and then make prominent head and described pin-and-hole clamping on the described side, fix the relative position of clock spring and its external packing.

As further prioritization scheme, the angle between described two sides greater than 30 ° less than 50 °; 30 ° to 50 ° angle makes the user need not to apply excessive power change on described side can narrow down to described angle the angle that is fit to insert pin-and-hole; Because the distance of described pin-and-hole is less than original distance between described two sides, after discharging the pressure be applied on the described side as the user, described side can't return to original angle, make described two sides be squeezed in the described pin-and-hole, guaranteed on the described side prominent head can with the tight clamping of described pin-and-hole, fixed the relative position of clock spring and its external packing.

As further prioritization scheme, described alignment pin is made by spring steel; Described spring steel has elasticity preferably, and two sides that can be described alignment pin reset needed elastic force is provided; In addition, described spring steel also has higher fatigue strength, has long useful life under load acts on repeatedly.

Two sides that described novel clock spring alignment pin passes through are provided with the tight clamping of pin-and-hole that is provided with in the external packing of barb-like prominent head and clock spring and clock spring, make described clock spring and its external packing remain the centering state; In addition, such structure makes that described alignment pin need not to reach the effect that increase frictional force is fixed two object relative positions by the contact area of pin-and-hole in increase and described clock spring and its external packing, has reduced manufacturing cost.

Figure of description

Fig. 1 is a kind of structural representation of novel clock spring alignment pin;

Fig. 2 is a kind of schematic diagram of installing and using of novel clock spring alignment pin.

Among the figure: 1, pin head, 2, side, 3, trailing edge, 4, prominent head, 5, pin-and-hole.

Specific embodiments

Below in conjunction with accompanying drawing and specific embodiments the utility model is further specified.

Fig. 1 and Fig. 2 have disclosed a kind of novel clock spring alignment pin; The pin of described alignment pin 1 is rectangular-shaped, and extends back from described pin head 1 both sides and to form described two sides 2; The length of described two sides 2 identical and between form 40 ° of angles; Described two sides 2 are being respectively arranged with barb-like prominent 4 near the both sides of described pin head 1, described prominent 4 be used for be arranged on clock spring and the time pin-and-hole 5 clampings in the shock mount external packing, to fix both relative positions; In addition, the end of described two sides 2 is connected to form a V font trailing edge 3 that caves inward; Described whole alignment pin is made by good springiness and the high spring steel of fatigue strength.

The user clamps a side 2 of described alignment pin respectively with finger earlier in use, and simultaneously two sides 2 is exerted pressure, and makes that the angle between the described side 2 dwindles; Simultaneously, with the pin-and-hole 5 that is provided with on the clock spring with the time pin-and-hole 5 that is provided with in the shock mount external packing align; After finishing above-mentioned steps, the user just can insert the pin of described alignment pin 1 in described two aligned pin 5; After confirming again to insert fully, the user can decontrol finger, release is applied to the pressure on two sides 2 of described alignment pin, described two sides 2 just can attempt to return to original 40 ° of angles owing to the elastic force of self with from the elastic force of V font trailing edge 3, but because the width of described pin-and-hole 5 is less than described two sides, 2 original distances, make described two sides 2 can't return to original angle and be squeezed in the described pin-and-hole, and and then make on the described side 2 barb-like prominent 4 with described pin-and-hole 5 tight clampings, fixed the relative position of described clock spring and its external packing, make both remain the centering state, can be because described alignment pin is not crossed pine or tension takes place to break away from or the situation that can't rotate even cause clock spring to be broken when rotating.

Described novel clock spring alignment pin is because have buckle structure, so need not increases contact area with pin-and-hole 5 by increasing volume or increasing length, thereby reduced the volume of described clock spring alignment pin, also reduce the volume of described clock spring external packing, reduce the manufacturing cost of whole alignment pin simultaneously.

Claims

1. a novel clock spring alignment pin is characterized in that, the pin head (1) of described alignment pin is rectangular-shaped, extends back from described pin head (1) both sides to form two sides (2); Form angle between described two sides (2), and be respectively arranged with barb-like prominent head (4) in both sides near described pin head (1).

2. a kind of novel clock spring alignment pin according to claim 1 is characterized in that two sides (2) of described alignment pin are isometric, and terminal linking to each other forms a V font trailing edge (3) to described pin head (1) direction depression.

3. a kind of novel clock spring alignment pin according to claim 1 and 2 is characterized in that, the angle between described two sides (2) greater than 30 ° less than 50 °.

4. a kind of novel clock spring alignment pin according to claim 1 and 2 is characterized in that described alignment pin is made by spring steel.