CN203641223U

CN203641223U - Screw with spring

Info

Publication number: CN203641223U
Application number: CN201320049954.2U
Authority: CN
Inventors: 黄卫东
Original assignee: SHENZHEN CUNJIN INDUSTRIAL Co Ltd
Current assignee: SHENZHEN CUNJIN INDUSTRIAL Co Ltd
Priority date: 2013-01-29
Filing date: 2013-01-29
Publication date: 2014-06-11
Anticipated expiration: 2023-01-29

Abstract

The utility model discloses a screw with a spring. The screw comprises a screw rod body and a screw head part; the screw with the spring also comprises the spring fixedly arranged on the screw; a horizontal flange is arranged on the outer side of the screw rod body in the circumferential direction; a clamping slot is formed in a space between the horizontal flange and the screw head part; the spring is a conical spring; a spring ring positioned at the smaller end of the conical spring is embedded into the clamping slot. According to the screw with the spring, the spring is fixedly mounted on the screw, so that a whole is formed, and the process that the spring needs to manually sleeve on the screw in the conventional technology is avoided; a combined body of the screw and the spring can be directly used, and the assembling efficiency is improved.

Description

A kind of screw with spring

Technical field

The utility model relates to a kind of screw, relates in particular to a kind of screw with spring.

Background technique

At present, spring is assembled to the occasion that is used in conjunction with on screw more and more, but the separate piece of normally separating each other due to both.Therefore in the time that spring is assembled to screw, as shown in Figure 1, because spring is cylinder straight cylinder type, assembly crewman must, by manual spring through locking to carry out both on screw, be fixedly mounted with on screw by spring.In view of both often will be used in conjunction with, therefore need a kind of both assemblying body.

Model utility content

The purpose of this utility model is to overcome deficiency of the prior art, and a kind of screw with spring is provided.

For achieving the above object, the described screw with spring, comprises the screw body of rod and screw head, is characterized in, the described screw with spring also comprises the spring being packed on screw.

Preferably, be provided with horizontal flanges in the outside of the described screw body of rod and along its circumferencial direction, the space between described horizontal flanges and screw head forms a draw-in groove; Described spring is volute spring; Be positioned at the spring ring inlay card of described volute spring small end at described draw-in groove.

Preferably, the internal diameter that is positioned at the described spring ring of volute spring small end is less than the external diameter of described draw-in groove.

The beneficial effects of the utility model are, the described screw with spring, by spring is fixedly mounted with on screw, make both form an entirety, thereby without the needs described in tratitional technology are manual, spring housing is connected on to the process on screw, the assemblying body that just can directly use both, has improved efficiency of assembling.

Accompanying drawing explanation

Fig. 1 shows the structural representation of screw in prior art, spring and both assemblying bodys.

Fig. 2 shows the structural representation of the screw with spring described in the utility model.

Fig. 3 shows the structural representation of removing spring shown in Fig. 2.

Fig. 4 shows the structural representation of the spring shown in Fig. 2.

Fig. 5 shows the half-finished structural representation in the process that forms the structure shown in Fig. 3.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail:

As shown in Figures 2 to 4, the described screw with spring, comprises the screw body of rod 11 and screw head 12, and the described screw with spring also comprises the spring 20 being packed on screw.Described screw material is chosen as low carbon steel iron wire, and the material of described spring 20 is chosen as spring steel.

Particularly, as shown in Figure 3, be provided with horizontal flanges 13 in the outside of the described screw body of rod 11 and along its circumferencial direction, the space between described horizontal flanges 13 and screw head 12 forms a draw-in groove 15, and this draw-in groove 15 is an annular groove.

As shown in Figure 4, described spring 20 is volute spring, that is: it comprises the spiral helicine spring main body being coiled into by Spring Steel Wire by, and the diameter of the each circle of described spring meets at the inner ring of contractive condition lower spring 20 and can in contiguous outer ring, receive step by step.

Be positioned at spring ring 21 inlay cards of described volute spring small end at described draw-in groove 15, during specific to production screw, the spring ring of the small end of volute spring 21 can be pressed in draw-in groove 15, spring 20 cannot be come off from screw, thereby make the described screw body of rod 11 and volute spring form an overall structure.Therefore,, in the time of assembling, can directly use this screw with spring 20 to assemble.

Especially, for the spring ring 21 that makes to be positioned at spring small end securely inlay card in draw-in groove 15, can carry out following setting: the internal diameter that is positioned at the described spring ring 21 of volute spring small end is less than the external diameter of described draw-in groove 15.

Described course of working comprises following step:

Step 1: a columniform step 14(is set as shown in Figure 5 in the screw body of rod 11 and the joint of screw head 12), by one-body molded this screw with step 14, then rub screw thread by thread-rolling machine at the head of the screw body of rod 11 by cold header;

Step 2: at the circumference middle part of described step 14, or in the joint of this step 14 and screw head 12, use thread-rolling machine to rub ring-like groove, to form described draw-in groove 15;

Step 3: screw head is downward, tapered spring small end under, the spring ring of the end of spring small end 21 is pressed in ring-like draw-in groove 15, spring 20 cannot be come off from screw.

Be only the utility model preferred embodiment in sum, be not used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modify, all should belong to technology category of the present utility model.

Claims

1. with a screw for spring, comprise the screw body of rod and screw head, it is characterized in that: the described screw with spring also comprises the spring being packed on the screw body of rod; Be provided with horizontal flanges in the outside of the described screw body of rod and along its circumferencial direction, the space between described horizontal flanges and screw head forms a draw-in groove; Described spring is volute spring; Be positioned at the spring ring inlay card of described volute spring small end at described draw-in groove.

2. the screw with spring according to claim 1, is characterized in that: the internal diameter that is positioned at the described spring ring of volute spring small end is less than the external diameter of described draw-in groove.