CN205311571U

CN205311571U - Flexible supporting leg

Info

Publication number: CN205311571U
Application number: CN201520962356.3U
Authority: CN
Inventors: 李兆勋
Original assignee: Guangxi Yingang Nanyi Motorcycle Manufacture Co Ltd
Current assignee: Guangxi Yingang Nanyi Motorcycle Manufacture Co Ltd
Priority date: 2015-11-26
Filing date: 2015-11-26
Publication date: 2016-06-15
Anticipated expiration: 2025-11-26

Abstract

The utility model provides a flexible supporting leg, includes ejector pin, annular end cover, sleeve, annular -shaped cage, steel ball, spring and camshaft, the sleeve inner chamber includes the path part, big footpath subtotal toper part, the big footpath of path subtotal part is through toper part transitional coupling, the annular end cover is fixed in telescopic big footpath part end department, the ejector pin passes annular end cover hole coaxial arrangement at the sleeve inner chamber, the annular -shaped cage suit is on the ejector pin, annular -shaped cage is last to be equipped with a plurality of steel balls and to inlay the dress through -hole, the steel ball inlays the dress and installs the steel ball in the through -hole, the spring also the suit on the ejector pin and lie in between steel ball holder and the annular end cover, the camshaft through -hole has been seted up on the section of thick bamboo wall of telescopic toper part, the camshaft is installed in the camshaft through -hole, the cam part of camshaft is located annular -shaped cage's top. Supporting leg simple structure, preparation low cost, the flexible simple operation of supporting leg, the locking that need not to adopt extra screw to accomplish main leg and extend the leg, durable.

Description

A kind of telescopic support legs

Technical field

This utility model relates to mechanical field, specifically a kind of telescopic support legs.

Background technology

That current supporting leg is mainly hand-rail type and oil cylinder is flexible, this support leg structure is complicated, it is necessary to configuration gear drive or Hydraulic Elements (only applicable semitrailer and heavy truck), and cost of manufacture is high, assembling process is loaded down with trivial details, and go wrong maintenance difficulty. Also part is threaded small-sized telescopic outrigger, and load capacity is too small. Lack the Telescopic support leg of simple in construction, easy to use, good reliability. The supporting leg also having adopts the two-part structure of extension type, but the shortcoming of this supporting leg is to use extra screw as the positioner between main lower limb and adjustment lower limb two sections, needs to insert screw and position during adjustment, comparatively loaded down with trivial details, makes troubles to adjustment. And screw is easily lost again when using complete collection, use to next time and bring inconvenience.

Utility model content

This utility model is for the deficiencies in the prior art, it is provided that a kind of use and collect more convenient can bear greater weight telescopic support legs.

To achieve these goals, this utility model have employed techniques below scheme:

A kind of telescopic support legs, it is characterised in that include push rod, annular end cap, sleeve, annular retainer, steel ball, spring and camshaft,

Described barrel bore includes path part, large diameter portion and conical section, path part and large diameter portion are connected by conical section transition, annular end cap is fixed on the large diameter portion end of sleeve, push rod is arranged on barrel bore through annular end cap female coaxial, annular retainer is sleeved on push rod, annular retainer is provided with multiple steel ball setting-in through hole, steel ball setting-in through hole is provided with steel ball, spring is also sleeved on push rod and between ball retainer and annular end cap, the barrel of the conical section of sleeve offers camshaft through hole, camshaft is arranged in camshaft through hole, the cam portion of camshaft is positioned at the top of annular retainer.

The path part of described push rod and annular end cap endoporus and barrel bore closely cooperates.

Described annular retainer outside wall surface is the inclined-plane that the conical section with sleeve coordinates, and steel ball setting-in through hole is opened on inclined-plane.

The path part end of described sleeve is provided with annular ear, is provided with load cross bar in annular ear.

Also including base, one end that push rod is positioned at outside sleeve is fixed on base.

Also including 8-shaped lock washer and locking nail, camshaft is arranged in a hole of 8-shaped lock washer, and locking nail clenches on sleeve outer wall face through another hole of 8-shaped lock washer.

The cam portion band plane of described camshaft, during effect, this plane withstands annular retainer.

Compared with prior art, the beneficial effect that this utility model possesses:

Support leg structure is simple, and cost of manufacture is cheap, and supporting leg scaling operation is convenient, it is not necessary to adopt extra screw to complete main lower limb and to extend the locking of lower limb, durable in use.

Accompanying drawing explanation

Fig. 1 is the sectional view of telescopic support legs described in the utility model.

Fig. 2 is the internal structure schematic diagram of telescopic support legs described in the utility model.

Fig. 3 is the overall structure axonometric chart of telescopic support legs described in the utility model.

Fig. 4 is the sectional view of the sleeve of telescopic support legs described in the utility model.

Fig. 5 is the scheme of installation of the camshaft of telescopic support legs described in the utility model, 8-shaped lock washer and locking nail.

Detailed description of the invention

By the examples below the technical solution of the utility model is further elaborated.

Embodiment 1

A kind of telescopic support legs, including push rod 1, annular end cap 2, sleeve 3, annular retainer 4, steel ball 5, spring 6 and camshaft 7,

Described sleeve 3 inner chamber includes path part, large diameter portion and conical section, path part and large diameter portion are connected by conical section transition, annular end cap 2 is fixed on the large diameter portion end of sleeve 3, push rod 1 is arranged on sleeve 3 inner chamber through annular end cap 2 female coaxial, annular retainer 4 is sleeved on push rod 1, annular retainer 4 is provided with multiple steel ball setting-in through hole, steel ball setting-in through hole is provided with steel ball 5, spring 6 is also sleeved on push rod 1 and between steel ball 5 retainer and annular end cap 2, the barrel of the conical section of sleeve 3 offers camshaft through hole 15, camshaft 7 is arranged in camshaft through hole 15, the cam portion of camshaft 7 is positioned at the top of annular retainer 4.

The path part of described push rod 1 and annular end cap 2 endoporus and sleeve 3 inner chamber closely cooperates. The path part of described sleeve 3 inner chamber is for depositing the part that do not extend out of push rod 1, and large diameter portion is used for laying spring 6, and conical section is used for laying annular retainer 4, steel ball 5 and camshaft 7.

Described annular retainer 4 outside wall surface is the inclined-plane that the conical section with sleeve 3 coordinates, and steel ball setting-in through hole is opened on inclined-plane.

The path part end of described sleeve 3 is provided with annular ear 11, is provided with load cross bar 9 in annular ear 11. Load cross bar 9 can move in annular ear 11, for some equipment, when telescopic support legs inconvenience is placed on the underface of equipment, it is possible to be placed on by equipment on load cross bar 9, then by weight transmitting to telescopic support legs.

Also including base 10, push rod 1 is positioned at the one end outside sleeve 3 and is fixed on base 10. Base 10 is the stability in order to increase supporting leg.

Also including 8-shaped lock washer 12 and locking nail 13, camshaft 7 is arranged in a hole of 8-shaped lock washer 12, and locking nail 13 clenches in sleeve 3 outside wall surface through another hole of 8-shaped lock washer 12.Owing to the shape of camshaft through hole 15 is to match with the cam portion on camshaft 7, during installation be also from camshaft through hole between insert, therefore, 8-shaped lock washer 12 is to prevent camshaft 7 from dropping from camshaft through hole 15. 14 is the cam portion on camshaft 7.

Operation principle and process thereof:

Spring 6 is in compressive state all the time, annular retainer 4 is pushed up by the tension force of spring 6, steel ball 5 one end is made to prop up the conical section inwall of sleeve 3, the other end props up the outer wall of push rod 1, and the pressure that sleeve 3 and push rod 1 applied by steel ball 5 and the frictional force that produces keep the fixing of sleeve 3 and push rod 1 position. When needing to regulate the push rod 1 elongation outside sleeve 3, rotating cam axle 7, the projection of camshaft 7 overhead cam turns to direction, annular retainer 4 place and annular retainer 4 is applied strength, spring 6 is compressed further, steel ball 5 on annular retainer 4 contacts with the conical section inwall of sleeve 3 and the outer wall of push rod 1 no longer simultaneously simultaneously, push rod 1 loosens, and both push rod 1 can be retracted to the path part of sleeve 3 or be drawn out to outside sleeve 3. Regulate to required length, rotating cam axle 7 so that the projection of camshaft 7 overhead cam sets back, spring 6 spring 6 is upheld, make steel ball 5 recover the outer wall of the conical section inwall of sleeve 3 and push rod 1 to be exerted a force, fixing by sleeve 3 and push rod 1 position simultaneously.

Claims

1. a telescopic support legs, it is characterised in that include push rod, annular end cap, sleeve, annular retainer, steel ball, spring and camshaft,

2. telescopic support legs as claimed in claim 1, it is characterised in that the path part of described push rod and annular end cap endoporus and barrel bore closely cooperates.

3. telescopic support legs as claimed in claim 1, it is characterised in that described annular retainer outside wall surface is the inclined-plane that the conical section with sleeve coordinates, steel ball setting-in through hole is opened on inclined-plane.

4. telescopic support legs as claimed in claim 1, it is characterised in that the path part end of described sleeve is provided with annular ear, is provided with load cross bar in annular ear.

5. telescopic support legs as claimed in claim 1, it is characterised in that also including base, one end that push rod is positioned at outside sleeve is fixed on base.

6. telescopic support legs as claimed in claim 1, it is characterized in that, also including 8-shaped lock washer and locking nail, camshaft is arranged in a hole of 8-shaped lock washer, and locking nail clenches on sleeve outer wall face through another hole of 8-shaped lock washer.

7. telescopic support legs as claimed in claim 1, it is characterised in that the cam portion band plane of described camshaft, during effect, this plane withstands annular retainer.