CN104179866A - Connecting device for compression spring - Google Patents

Abstract

The invention relates to a connecting device for a compression spring. The connecting device comprises a spring body, a first connecting sleeve and a second connecting sleeve, wherein the spring body is formed by curling overlaying of a metal strip; an annular bulge is arranged at the upper end of the first connecting sleeve, a threaded first groove matched with the spring body is formed in the outer surface of the bulge, and an opening is formed in a position, which is located at an opening end of the bulge, of the first groove; a threaded second groove matched with the spring body is formed in the inner wall of the second connecting sleeve, and an opening is formed in a position, which is located at an opening surface of the lower end of the second connecting sleeve, of the second groove; the lower end of the spring body is rotationally inserted in the first groove to be fixedly connected with the first connecting sleeve, and the upper end of the spring body is rotationally inserted in the second groove to be fixedly connected with the second connecting sleeve. According to the connecting device for the compression spring, the spring body is rotationally inserted in the first and second grooves to be fixedly connected with the connecting sleeves, so that the firmness of the spring and a connecting piece is greatly improved, and the service life is prolonged.

Description

A kind of connection set for Compress Spring

Technical field

The present invention relates to a kind of connection set for Compress Spring.

Background technique

Common spring and link how by spring directly and link outer wall be socketed, by the frictional force between spring inwall and link outer wall, place spring slippage, but use for a long time or be easy to cause spring and link outer wall to wear and tear when much when pressure and pulling force, finally causing spring to get loose or link is scrapped.

Summary of the invention

The technical problem to be solved in the present invention is: for solving the problem of above-mentioned existence, provide a kind of connection set for Compress Spring, solve the problem that easily gets loose and wear and tear between common spring and connection set.

The technical solution adopted for the present invention to solve the technical problems is: a kind of connection set for Compress Spring, comprise spring body, the first connecting sleeve and the second connecting sleeve, spring body is formed by stacking by metal bar is curling, the first connecting sleeve upper end has annular protrusion, convex outer surface offers helical the first groove matching with spring body, the first groove is positioned at bump openings end and is provided with opening, on the second connecting sleeve inwall, offer helical the second groove for matching with spring body, the second groove is positioned at the second connecting sleeve lower ending opening face and is provided with opening, spring body lower end is inserted the first groove by rotation and is fixedly connected with the first connecting sleeve, spring body upper end is inserted the second groove by rotation and is fixedly connected with the second connecting sleeve.

Further, on the second connecting sleeve, offer two for fixing screw.

Further, the first groove and the second bottom portion of groove are provided with and have pawl for preventing the skid resistant course of spring slippage.

The invention has the beneficial effects as follows, the connection set spring body for Compress Spring of the present invention inserts the first groove by rotation and is fixedly connected with connecting sleeve with the second groove, has greatly extended the fastness between spring and link, increases the service life.

 

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the present invention is further described.

Fig. 1 is structural representation of the present invention.

Fig. 2 is the structural representation of the first groove of the present invention.

Fig. 3 is the structural representation of the second groove of the present invention.

1. spring bodies in figure, 2. the first connecting sleeve, 3. the second connecting sleeve, 4. projection, 5. the first groove, 6. the second groove, 7. screw.

 

Embodiment

In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, basic structure of the present invention is only described in a schematic way, so it only show the formation relevant with the present invention.

As Fig. 1, a kind of connection set for Compress Spring shown in Fig. 2 and Fig. 3, comprise spring body 1, the first connecting sleeve 2 and the second connecting sleeve 3, spring body 1 is formed by stacking by metal bar is curling, the first connecting sleeve 2 upper ends have annular protrusion 4, projection 4 outer surfaces offer helical the first groove 5 matching with spring body 1, the first groove 5 is positioned at protruding 4 opening ends and is provided with opening, on the second connecting sleeve 3 inwalls, offer helical the second groove 6 for matching with spring body 1, the second groove 6 is positioned at the second connecting sleeve 3 lower ending opening faces and is provided with opening, spring body 1 lower end is inserted the first groove 5 by rotation and is fixedly connected with the first connecting sleeve 2, spring body 1 upper end is inserted the second groove 6 by rotation and is fixedly connected with the second connecting sleeve 3, further, on the second connecting sleeve 3, offer two for fixing screw 7, further, the first groove 5 and the second groove 6 bottoms are provided with has pawl for preventing the skid resistant course of spring slippage, the invention has the beneficial effects as follows, connection set spring body 1 for Compress Spring of the present invention inserts the first groove 5 by rotation and is fixedly connected with connecting sleeve with the second groove 6, greatly extended the fastness between spring and link, increase the service life.

The above-mentioned foundation desirable embodiment of the present invention of take is enlightenment, and by above-mentioned description, relevant staff can, within not departing from the scope of this invention technological thought, carry out various change and modification completely.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to claim scope.

Claims (3)

1. A connection device for compression springs, including a spring body (1), a first connection sleeve (2) and a second connection sleeve (3), the feature is: the spring body (1) is made of metal strips The upper end of the first connecting sleeve (2) has an annular protrusion (4), and the outer surface of the protrusion (4) is provided with a threaded first concave that matches the spring body (1). Groove (5), the first groove (5) is located at the opening end of the protrusion (4) and has an opening, and the inner wall of the second connecting sleeve (3) is provided with a groove for matching with the spring body (1). The threaded second groove (6), the second groove (6) is located on the opening surface of the lower end of the second connecting sleeve (3) and has an opening, and the lower end of the spring body (1) is inserted into the first The groove (5) is fixedly connected with the first connection sleeve (2), and the upper end of the spring body (1) is inserted into the second groove (6) by rotation and fixedly connected with the second connection sleeve (3). 2. The connection device for compression springs according to claim 1, characterized in that: the second connection sleeve (3) is provided with two screw holes (7) for fixing. 3. The connection device for compression springs according to claim 1, characterized in that: the bottoms of the first groove (5) and the second groove (6) are provided with inverted teeth to prevent the spring from slipping anti-skid layer.