CN2493813Y

CN2493813Y - Lock device for pipe hoop

Info

Publication number: CN2493813Y
Application number: CN 01208386
Authority: CN
Inventors: 曹德丰
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-13
Filing date: 2001-03-13
Publication date: 2002-05-29
Anticipated expiration: 2011-03-13

Abstract

The utility model relates to a lock device for pipe hoop ring. Two end parts 2, 3 of a ring body are respectively provided with a hole 21 and a screw tooth part and the screw tooth part is formed on a screw hole arranged between a pair of elastic sheets 33, 34. The screw hole (31) consists of two half screw teeth 31a, 31b and the elastic sheets 33, 34 are hill-shaped bodies which are built up towards the middle from the cohesion edge between the elastic sheets and a polar body arranged at the end part and a division opening 32 is formed at the neighboring position of the middle. An elastic body is punched and formed at the screw hole area of the end part of the pipe hoop ring, thus leading the effect of a spring screw cap when the screw is tightened generated and preventing the loose phenomenon caused due to the vibration.

Description

A kind of locking device of pipe collar ring

The utility model relates to mechanical, particularly a kind of locking device of pipe collar ring.

As everyone knows, the pipe collar ring has been that tightening up of folder beam tube end used hoop since using, its common constitution as shown in Figure 1, by metal sheet punching out bending forming, its body is a lamellar hoop, and the two ends of hoop are converted into relative plate, has through hole on one plate, relative position on another plate then is a screw, and one of mode that forms screw is a hole depth to be pumped in the mode of the system of taking out in the hole of not tapping take out hole H greater than the body of sheet thickness, again in its internal diameter tapping thread; Again as shown in Figure 2, thread no longer forms to take out the system mode, but directly the hole is gone out the tooth form of a single tooth when punching press, then during fabrication can be more easy, but shortcoming is for because a thread S causes fragility, and is particularly weak in when vibrations opposing, get loose easily.

The purpose of this utility model is exactly the shortcoming that exists at above-mentioned common two kinds of pipe collar rings, a kind of locking device of pipe collar ring is provided, this device has not only improved the shortcoming of above-mentioned existence, and the characteristics that can keep the punching out process to oversimplify again make product have the good advantage of function again with low cost.

The technical solution of the utility model:

According to the purpose of this utility model, a kind of locking device of pipe collar ring is provided, main structure is to form an elastomer in the zone punching out of the end of pipe collar ring screw, make the effect that when the screw packing, produces Spring nut, with the shortcoming that gets loose that prevents to cause, make product have the good advantage of function again with low cost because of vibrations.

Accompanying drawings structure of the present utility model and embodiment:

Fig. 1 and Fig. 2 are the three-dimensional appearance schematic representation of common pipe collar ring.

Fig. 3 is a three-dimensional appearance schematic representation of the present utility model.

Fig. 4 is embodiment's schematic representation of the present utility model.

1 for ring body, 2 for the end, 21 for the hole, 3 for the end, 31 for screw, 31a be thread, 31b be thread, 32 for divide breach, 33 for shell fragment, 34 for shell fragment, H for take out the hole, S is that thread, B are screw.

As shown in Figure 3, the utility model is to be respectively equipped with a hole 21 and a spiro tooth part in two terminal ends 2,3 of ring body 1, wherein spiro tooth part is by forming on the screw 31 between a pair of

shell fragment

33,34, its screw is made of jointly thread 31a, the 31b of two halves, and

shell fragment

33,34 also is from its chevron body that arches upward to the centre in the limit that is connected with the end plate body, and adjacent forms one fen breach 32 in the middle of it.

Be embodiment of the present utility model as shown in Figure 4, when screw B is passed by the hole 21 of end 2 and after locking screw 31, after the screw packing, the

shell fragment

33,34 of screw is because of stressed inside bunching, produce the pulling force of screw axial direction first, produce spiro tooth part first the power that clamps in the alignment direction of screw work footpath; Make ring body 1 when reaching the packing state, also tightened simultaneously admittedly that in the time of can avoiding external vibrations, and intrinsic gap causes getting loose easily between coping screw and screw by folder.

Claims

1, a kind of locking device of pipe collar ring, two bundle ends (2), (3) at its ring body (1) are respectively equipped with a hole (21) and spiro tooth part, it is characterized in that spiro tooth part is to form on the screw (31) between a pair of shell fragment (33), (34), its screw (31) is made of jointly thread (31a), (31b) of two halves, and shell fragment (33), (34) also are from its chevron body that arches upward to the centre in the limit that is connected with the end plate body, and adjacent forms one fen breach (32) in the middle of it.