CN101499578A

CN101499578A - Socket and bush

Info

Publication number: CN101499578A
Application number: CNA2008100491807A
Authority: CN
Inventors: 周晓华
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-01-30
Filing date: 2008-01-30
Publication date: 2009-08-05

Abstract

The invention provides a socket insertion sleeve. The upper end of a groove wall of the U-shaped groove insertion sleeve is provided with a flexible contact plate and two support arms, which extend into the insertion sleeve in sequence in a bending way. When the insertion sleeve and a late pin are completely interlocked, the flexible contact plate and the two support arms form a solid triangular support bracket which is supported between the groove walls; the late pin is inserted to closely contact with the insertion sleeve, thereby forming firm and maximum permanent holding force; and the holding force can not be weakened and lost at any time, thereby overcoming the defect that the holding force of the insertion sleeve depends on the characteristics and thickness of the metal plate to the greatest extent. The insertion sleeve with the structure can be interlocked reliably with the upper late pin of the plug. The socket insertion sleeve has the advantages of high through-flow capacity, secure use, long service life, simpler process and lower cost.

Description

A kind of socket and bush

Affiliated technical field

The present invention relates to a kind of connector art, especially relate to a kind of power socket and bush, socket and bush has firm maximized permanent chucking power.

Background technology

The patent of having applied for, socket and bush all have maximized permanent chucking power, but still have following problem:

1, application number 200710054341.7, the patent of invention of the applying date 2007/4/30, in actual applications, because latch thickness exists thickness to differ and error on the plug, support effect is difficult to reach best between the wall of the rotatable support arm (317) after the fixed length, to latch less than standard thickness, do not have the support arm effect, latch to overgauge thickness, Support Position when rotatable support arm (317) rotates less than design, do not reach the maximum support effect, just be difficult to produce maximized permanent chucking power, and support insecure.

2, application number 200720090238.3, and the utility model patent of the applying date 2007/4/30 in actual production, owing to the bonding jumper that bends sleeve is narrower, cuts out the complex process of support arm (316), the cost height.

3, application number 200710054728.2, the patent of invention of the applying date 2007/7/6, and in actual production, the strip sheet metal needs just can finish through seven bendings the moulding of sleeve, and processing step is many and complicated, and materials are more, the cost height.

Summary of the invention

For realizing that socket and bush and latch still have maximized contact area and firm maximized permanent chucking power when chimeric, simultaneously for further simplifying production technology and reducing production costs, the invention provides a kind of socket and bush, production technology is simpler, and cost is lower.

The technical solution adopted for the present invention to solve the technical problems is: form " U " shape slot socket sleeve by strip elastic sheet metal bending, an elastic contact chip has been extended in the diapire direction bending in groove of the upper end of one cell wall, this elastic contact chip has extended a support arm to the internal direction bending of itself and above-mentioned cell wall again, and this support arm is roughly bending again and extended a support arm in position of symmetry with it towards elastic contact chip one side.

On the elastic contact chip, there is support arm one side blow to be shaped on a projection extending.

The invention has the beneficial effects as follows:

In latch and the chimeric process of sleeve, latch promotes elastic contact chip and rotates, and then promotes the rotation of two support arms.Insertion along with latch, under the projection backstop action on the elastic contact chip, elastic contact chip and two support arms form a firm A-frame gradually, be supported between cell wall, promoting latch contacts with cell wall, the tight face of elastic contact chip, also promptly form a firm maximized permanent chucking power, realized still having when socket and bush and latch are chimeric the purpose of maximized contact area and firm maximized permanent chucking power.Progressively form because above-mentioned A-frame is the insertion along with latch, progressively increase,, never reduce and lose, accord with or surpass national standard until maximum so chucking power also is insertion along with latch.

The strip sheet metal only needs just can finish through five bendings the moulding of sleeve, and the formation of above-mentioned A-frame is to form by elastic contact chip with by its two support arms that directly bend out in proper order, processing step and materials have all reduced, so cost has further reduced.

So clamping latch of the present invention is firm, through-current capability is big, and is safe, and long service life is with low cost.

Be the example explanation with the supply socket of single-phase the two poles of the earth below, sleeve and its isostructure in band ground supply socket of single-phase the two poles of the earth and the three-phase power socket.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples

Fig. 1 is a front view of the present invention

Fig. 2 is the cross-sectional view of Fig. 1

Fig. 3 is the left side parallax stereogram of Fig. 1

Fig. 4 is the right side parallax stereogram of Fig. 1

Fig. 5 is the sectional view that supply socket of the present invention is installed

Fig. 6 is the sectional view that supply socket of the present invention is installed after chimeric with latch

Embodiment

Show that as Fig. 5 supply socket has insulation crust (1) and metal sleeve (3) to form.

Show as Fig. 1, sleeve (3) is bent into continuously with a strip elastic conduction sheet metal, its shape and structure is: diapire (33) the direction bending in groove of the upper end of the cell wall (35) of " U " shape groove sleeve (3) is extended arc-shaped bend portion (350) and contact chip (351), the two has constituted elastic contact chip, contact chip (351) bends again to the internal direction of itself and cell wall (35) and extends support arm (353), and support arm (353) is roughly bending again and extended a support arm (357) in position of symmetry with it towards contact chip (351) one sides.

Show on the contact chip (351), have support arm one side blow to be shaped on a projection (3510) extending as Fig. 1.

Show that as Fig. 5, Fig. 6 in latch (41) on plug (4) and the chimeric process of sleeve (3), latch (41) at first promotes contact chip (351) and rotates, and then promote support arm (353) and support arm (357) rotation.Insertion gradually along with latch (41), under the backstop action of projection (3510), contact chip (351) and support arm (353), support arm (357) form a firm A-frame gradually, be supported between cell wall, promote latch (41) and contact, also promptly formed a firm maximized permanent chucking power with cell wall (31), the tight face of contact chip (351).

Claims

1 one kinds of socket and bush, the shape and structure feature is: form " U " shape slot socket sleeve by a rectangular elastic sheet metal bending, an elastic contact chip has been extended in the diapire direction bending in groove of the upper end of one cell wall, this elastic contact chip has extended a support arm to the internal direction bending of itself and above-mentioned cell wall again, and this support arm is roughly bending again and extended a support arm in position of symmetry with it towards elastic contact chip one side.

2 socket and bush according to claim 1 is characterized in that: on the elastic contact chip, have support arm one side blow to be shaped on a projection extending.