CN2325579Y

CN2325579Y - Quick fastened screw bolt and nut

Info

Publication number: CN2325579Y
Application number: CN 98210314
Authority: CN
Inventors: 崔书军
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-01-16
Filing date: 1998-01-16
Publication date: 1999-06-23
Anticipated expiration: 2008-01-16

Abstract

The utility model relates to a quick fastened screw bolt and a nut, which is composed of a screw bolt and a combined nut, wherein more than two unthreaded planes which are parallel to a shaft line are uniformly distributed on an outer circle of the threaded rod part of the screw bolt. The combined nut is composed of two branch nuts, wherein more than two inner screw threads of each branch nut are removed in the axial direction at equal intervals, and the parts of which the screw threads are removed are matched with the parts provided with screw threads on the threaded rod; the outer diameters of the two branch nuts are equal, and the two branch nuts are connected by inner and outer screw threads positioned on the end surfaces of the two branch nuts. The utility model has the advantages of simple structure and quick and convenient use.

Description

A kind of quick clamping bolt, nut

The utility model relates to a kind of quick clamping bolt, nut.

Chinese patent CN90222467 discloses a kind of " the quick securing means of bolt, nut ", two grooves are split in the both sides of its bolt, the internal tooth of its nut is two-part of protrusion, projection and groove match, be with special check washer in the gap of bolts and nuts, be with special check washer in the gap of bolts and nuts.The shortcoming of above-mentioned patent is that structure is complicated, processing difficulties, is unfavorable for applying.

The purpose of this utility model provide a kind of simple in structure, use quickly and easily clamping bolt, nut fast.

The purpose of this utility model is achieved in that the utility model is made up of bolt and assembled nut, is evenly equipped with the threadless plane of paralleling to the axis more than 2 on the cylindrical of the screw portion of bolt; Assembled nut is made up of two branch nuts, the internal thread of two branch nuts is in axial direction removed more than 2 by equally spaced, threaded part matches on its part of removing screw thread and the screw rod, and the external diameter of two branch nuts equates, and linked by the internal and external screw thread that is positioned at its end face.

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1 is embodiment's 1 an of the present utility model structural representation.

Fig. 2 is the plan view of embodiment 1 bolt.

Fig. 3 is the left view of Fig. 2.

Fig. 4 is the plan view of a branch nut of embodiment 1 assembled nut.

Fig. 5 is the left view of Fig. 4.

Fig. 6 be embodiment 1 assembled nut another minute nut plan view.

Fig. 7 is the left view of Fig. 6.

Fig. 8 is the plan view of embodiment's 2 of the present utility model bolt.

Fig. 9 is the left view of Fig. 8.

Figure 10 is the plan view of a branch nut of embodiment 2 assembled nut.

Figure 11 is the left view of Figure 10.

Figure 12 be embodiment 2 assembled nut another minute nut plan view.

Figure 13 is the left view of Figure 12.

By the embodiment 1 shown in Fig. 1-7 as can be known, the utility model is made up of bolt (1) and assembled nut, on the cylindrical of the screw portion of bolt (1), be evenly equipped with 2 threadless planes of paralleling to the axis, assembled nut is made up of two branch nuts (2), (3), the internal thread of two branch nuts (2), (3) is in axial direction removed two by equally spaced, promptly symmetry removes two, divide nut (2) to see Fig. 4, Fig. 5, divide nut (3) to see Fig. 6, Fig. 7, it removes, and threaded two-part match on the two-part of screw thread and the screw rod.The external diameter of two branch nuts equates, and by the internal and external screw thread that is positioned at its end face link (seeing Fig. 4-7).

When using quick clamping bolt shown in Figure 1, nut, at first two the branch nuts (2) with assembled nut are screwed in (3), and make the unthreaded portion alignment of two branch nuts, then assembled nut is moved on bolt, when waiting to move to desired location, one of them branch nut of assembled nut is revolved 90 °, the female thread portion of two branch nuts is staggered, tightening can be fastening again.

By the embodiment 2 shown in Fig. 8-13 as can be known, it is made up of bolt (4) and assembled nut, on the cylindrical of the screw portion of bolt (4), be evenly equipped with 3 threadless planes of paralleling to the axis, assembled nut is made up of two branch nuts (5), (6), the internal thread of two branch nuts (5), (6) is in axial direction removed 3 by equally spaced, divide nut (5) to see Figure 10, Figure 11, divide nut (6) to see Figure 12, Figure 13, it removes, and threaded 3 parts match on 3 parts of screw thread and the screw rod.The external diameter of two branch nuts equates, and by the internal and external screw thread that is positioned at its end face link (seeing Figure 10-13).

Embodiment 2 using process is with embodiment 1.

The utility model has the advantages that simple in structure, use quick and convenient.

Claims

1, a kind of quick clamping bolt, nut is characterized in that it is made up of bolt and assembled nut, are evenly equipped with the threadless plane of paralleling to the axis more than 2 on the cylindrical of the screw portion of bolt; Assembled nut is made up of two branch nuts, the internal thread of two branch nuts is in axial direction removed more than 2 by equally spaced, threaded part matches on its part of removing screw thread and the screw rod, and the external diameter of two branch nuts equates, and linked by the internal and external screw thread that is positioned at its end face.

2, quick clamping bolt according to claim 1, nut is characterized in that being evenly equipped with two threadless planes of paralleling to the axis on the cylindrical of the screw portion of bolt; The internal thread of two branch nuts of assembled nut is in axial direction removed 2 by equally spaced, promptly symmetry remove two, it removes, and threaded two-part match on the two-part of screw thread and the screw rod.

3, quick clamping bolt according to claim 1, nut is characterized in that being evenly equipped with 3 threadless planes of paralleling to the axis on the cylindrical of the screw portion of bolt; The internal thread of two branch nuts of assembled nut is in axial direction removed 3 by equally spaced, and it removes, and threaded 3 parts match on 3 parts of screw thread and the screw rod.