KR100533928B1 - The fitter clamp for a pipe - Google Patents

Abstract

The present invention relates to a pipe peter clamp which increases the contact area with a pipe to give a more firm grip. The pipe peter clamp of the present invention, in constructing a pipe peter clamp for tightening and fixing an inserted pipe, is in contact with the pipe. A ring-shaped body having an inner diameter portion and having at least one clearance groove formed in the outer diameter direction from the inner diameter portion to enable the diameter expansion of the inner diameter portion; And a length of the clearance groove is formed to protrude from the body so as to have an extension clearance groove extending beyond the outer diameter of the body, and is connected to and extends in a shape surrounding the outside of the extension clearance groove, to allow elastic deformation. At least one free groove extension portion that is bent at a predetermined angle relative to the body; widening the contact area with the pipe to ensure safety and firm grip, and does not cause serious damage to the pipe surface It can prevent breakage and leakage of fluids, and it does not need separate processing such as blade processing, and it is possible to easily manufacture the product only by cutting and bending processing using a plate structurally, which reduces the manufacturing cost of the product. It increases the productivity of the product. As well as improving the precision and quality, it has the effect of making it easy to manufacture products of various specifications.

Description

The fitter clamp for a pipe}

The present invention relates to a pipe peter clamp, and more particularly, to a pipe peter clamp that increases the contact area with the pipe to have a more firm grip.

In general, as shown in Figs. 1 and 2, the conventional pipe peter clamp 100 is a female bracket and a male bracket which are coupled to each other to allow forward insertion of the pipe 1 but to prevent backward departure. It is fixedly installed by the guide (4) and the O-ring (5) between (3), largely, as shown in Figure 1, consists of a vertical body 110 and a circumferential body 120 connected to each other.

At this time, the vertical body 110 is a cylindrical shape that is fixed to the inner diameter step (3a) of the male bracket (3), the circumferential body 120 allows the forward insertion of the pipe (1), but prevents backward departure It is a shape separated into a plurality of pieces by the clearance groove (120a) disposed on the radiation from the inner diameter of the circumferential body 120 in an inclined shape so as to.

That is, the clearance groove 120a is formed in a shape that crosses the circumferential body 120 so that each piece of the circumferential body 120 is elastically deformed by the return force when the pipe 1 is inserted forward. This configuration is such that the pipe 1 can be gripped at all times.

However, in the conventional pipe peter clamp 100, the length of the clearance groove 120a is limited to the circumferential body 120, and thus the length of the circumferential body 120 can no longer be extended. In order to have sufficient elasticity of each piece, there is no choice but to increase the number of the clearance grooves 120a. Therefore, when the number of the clearance grooves 120a is increased, the spaces spaced apart by the clearance grooves 120a increase, so that the pipes 1 Since the contact area with is reduced, the triangular bent toothed blade (120b) should be formed on the contact surface in contact with the pipe (1) of the circumferential body (120) to improve the pipe gripping force. However, the toothed blade (120b) only serves to dig into the pipe (1), the effect of increasing the actual holding force was insignificant.

Therefore, the conventional pipe peter clamp 100 is inferior in safety because the contact area with the pipe 1 is narrow and the holding force is weak, and the serrated blade 120b hurts the surface of the pipe 1 so that the pipe 1 There were many problems such as causing breakage and leakage of fluid.

In addition, a separate processing such as toothed blade (120b) processing is required, due to the deformation of the thickness or shape that occurs during the drawing process for forming the vertical body 110, which is structurally cylindrical, as well as the increase in manufacturing cost There are many problems, such as the productivity, precision and quality of the product is remarkably degraded, and the drawing process has a limitation in producing various standard products.

An object of the present invention for solving the above problems, by increasing the length of the margin grooves to reduce the number of the margin grooves to widen the contact area with the pipe to have a safety and firm grip force, without causing serious damage to the pipe surface The present invention provides a pipe peter clamp to prevent pipe breakage and leakage of fluid.

In addition, separate processing such as blade processing is unnecessary, and the product can be easily manufactured only by cutting and bending processing using a plate structurally, thereby reducing the manufacturing cost of the product, increasing the productivity of the product, and the thickness of the manufactured product. It is to provide a pipe peter clamp that is uniform in shape to improve the precision and quality of the product, as well as to easily produce products of various specifications.

Pipe Peter clamp of the present invention for achieving the above object, the pipe Peter clamp is fixed between the female bracket and the male bracket which is coupled to each other to allow the forward insertion of the pipe but prevent the reverse departure, and tighten the pipe inserted clamp In the configuration, the ring-shaped body having an inner diameter portion in contact with the pipe, the at least one clearance groove is formed in the outer diameter direction from the inner diameter portion to enable the diameter expansion of the inner diameter portion; And a length of the clearance groove is formed to protrude from the body so as to have an extension clearance groove extending beyond the outer diameter of the body, and is connected to and extends in a shape surrounding the outside of the extension clearance groove, to allow elastic deformation. Characterized in that it comprises a; at least one free groove extension portion that is bent at a predetermined angle relative to the body.

In addition, preferably, the circumferential surface of the body is formed by forming an inclined surface inclined at a predetermined angle to resist backward departure of the inserted pipe, and the clearance groove is formed on the radiation at equal isometric intervals relative to the body. The free groove extension part is formed with a free groove connected to the free groove of the body, and is bent at a predetermined angle with the body, and the body and the free groove extension part are made of stainless spring steel sheets which are heat treated to allow elastic deformation. Can be made.

In addition, the auxiliary groove having the same outline as the free groove extension portion, and bent at the same angle as the free groove extension portion to enable elastic deformation, but without the free groove may be further included.

On the other hand, the body and the free groove extension portion, the inner diameter portion of the body in the stainless steel spring plate, and radially cut isotropically cut in the inner diameter portion to form a free groove, the outer portion of the body and the free groove extension portion except the joint It is preferable to be made by lifting the process, bending the free groove extension on the basis of the body fixed to the steel plate by the joint, and finally by cutting the joint to produce the body and the free groove extension. .

Hereinafter, a pipe peter clamp according to preferred embodiments of the present invention will be described in detail with reference to the drawings.

First, as shown in Figure 3, the pipe peter clamp 10 according to a preferred embodiment of the present invention, the arm bracket of Figure 5 is coupled to each other to allow forward insertion of the pipe (1) but to prevent backward departure (2) is fixedly installed between the male bracket (3), by tightening the inserted pipe (1), it is a configuration consisting largely the body 11 and the free groove extension portion (12).

That is, as shown in FIG. 3, the body 11 has an inner diameter portion 11a in contact with the pipe 1 and an outer diameter from the inner diameter portion 11a so as to allow the diameter of the inner diameter portion 11a to be expanded. At least one (three in the figure) in the direction of the ring-shaped groove () is formed, the circumferential surface of the body 11 is inclined at a predetermined angle to resist backward departure of the inserted pipe (1) It is made to form, the clearance groove (11b) is a configuration that is formed by tearing the cut on the radiation at equal intervals on the basis of the body (11).

In addition, the clearance groove extending portion 12 is protruded outward from the body 11 so that the length of the clearance groove 11b has an extension clearance groove 12b extending beyond the outer diameter of the body 11. It is formed, connected to extend in the shape surrounding the outer side of the extension groove (12b) is extended, bent at a predetermined angle relative to the body 11 to enable elastic deformation, the margin of the body 11 ( An extension clearance groove 12b connected to 11b) is formed, and as shown in FIGS. 5 and 6, the configuration is bent at a predetermined angle with the body 11.

In addition, the body 11 and the free groove extension portion 12 is made of stainless spring steel sheet which is heat-treated to enable elastic deformation with each other.

Thus, as shown in Figure 5 and 6, the body 11 and the free groove extending portion 12 is located between the female bracket (2) and the male bracket (3) and the female bracket (2) and When the male bracket 3 is in close contact, the pipe 1 is sealed by the O-ring 5 and pressed by the guide 4 at the same time.

At this time, the front end portion of the free groove extension portion 12 is supported by the inner diameter stepped portion 3a of the male bracket 3, the body 11 is made of a smaller diameter than the outer diameter of the pipe 1 pipe It is a structure installed by being extended in the (1) direction.

Subsequently, when the pipe 1 is inserted forward, the body 11 is sufficiently elastically deformed by the elongated elongation groove () extending to the elongation groove extension portion 12 even though the number of the clearance grooves () is small. This allows the inner diameter portion 11a of the body 11 to firmly grip the outer diameter surface of the pipe 1 by the return force.

At this time, the inner diameter portion 11a of the body 11 has a small number of clearance grooves 11b and is a curved shape in which a conventional saw blade or the like is not formed, so that the contact area with the pipe 1 is widened. You can grasp (1) safely and firmly.

On the other hand, as shown in Figure 4, the pipe Peter clamp 10 according to another embodiment of the present invention, in addition to the above-described body 11 and the free groove extension portion 12, the same as the free groove extension portion It further includes an auxiliary extension portion 13 having an outer structure and bent at the same angle as the free groove extension portion 12 to enable elastic deformation, but without the free groove 11b or the extension free groove 12b. Can be done.

Therefore, the grip force on the pipe 1 is increased by sufficiently increasing the elastic restoring force between the body 11 and the free groove extension part 12 / the auxiliary extension part 13 while reducing the number of the free grooves 11b to a minimum. It can be designed by reinforcement.

On the other hand, as shown in Figure 6, the body 11 and the free groove extension portion 12 / auxiliary extension portion 13 may be produced only by simple primary bending (shown in Figure 6), but in addition, As shown in Figure 7 to 11, it can be made a plurality of bending at various angles.

That is, as shown in Figure 7, in order to further secure the fixed support with the inner diameter step (3a) of the male bracket (3), the free groove extension portion 12 / auxiliary extension portion 13, It is a configuration that may be provided with an elastic bent portion 14 is bent at a predetermined angle to the front end portion in contact with the inner diameter step (3a) of the male bracket (3).

In addition, as shown in Figure 8, in order to further secure the fixed support with the inner diameter step (3a) of the male bracket (3), the free groove extension portion 12 / auxiliary extension portion 13, It is a configuration that may be provided with a connection bending portion 15 which is secondly bent at the rear end (that is, between the body and the free groove extension / auxiliary extension) connected to the body (11).

In addition, as shown in FIG. 9, in order to further enhance the frictional force with the pipe 1, the body 11 may be a second bent portion 16 that is secondly bent on an inner diameter surface in contact with the pipe 1. It can be made with a configuration.

In addition, as shown in FIG. 10, the configuration is bent three times to have the connection bending portion 15 and the blade bending portion 16 at the same time, as shown in Figure 11, the elastic bending portion 14 and It is also possible to configure the fourth bend to have both the connecting bent portion 15 and the blade bent portion 16 at the same time.

The form and type of the bending is a technology that can be easily modified and changed by those skilled in the art without departing from the technical spirit of the present invention.

On the other hand, when the manufacturing process of the body and the free groove extension portion described, first the inner diameter portion (11a) of the body 11 in the stainless steel spring steel plate, and then is isometrically cut to the inner diameter portion () The clearance groove 11b and the extension clearance groove 12b are formed, and then the outer edges of the body 11 and the clearance groove extension part 12 are lifted and processed, and then the clearance is based on the body 11. The groove extending portion 12 is bent, and finally, by cutting the joints, the body 11 and the free groove extending portion 12 can be produced by plucking.

Therefore, since the processing is performed by simply cutting and bending a thin plate without using a drawing process, it is possible to produce a high-quality product with high precision because there is no irregularity in thickness or deformation of the shape that occurs during the drawing process. This simplicity has the advantage of dramatically reducing product productivity and processing costs.

On the other hand, as shown in Figure 12, pipe peter clamp 10 according to another preferred embodiment of the present invention, the narrow diameter (d) to be able to forcibly bite the pipe 1 by the deformation of the body (11) And an elliptical inner diameter hole 11d having a wide diameter D are formed, and two free grooves 11b and an extended free groove 12b are formed in the wide diameter D portion.

In addition, the clearance groove extension portion 12 is vertically bent in a shape surrounding the extension clearance groove 12b to serve as a rotation center point in a portion having a wide diameter (D), the auxiliary extension portion 13 In the narrow diameter (d) portion of the male bracket (3) to make contact with the inner diameter step (3a) to form an elastic bending portion 14 is bent the end portion to be able to have a restoring force in the direction to forcibly bite the pipe (1) will be.

Accordingly, as shown in FIG. 13, when the pipe 1 is forcibly pushed, the extension margin is centered on the marginal groove extension part 12 that is bent vertically and supported on the inner diameter step 3a of the male bracket 3. As the groove 12b is opened, the pipe 1 may be inserted because the inner diameter of the body 11, that is, the narrow diameter d is deformed and widened.

At this time, the return force to return in the direction of the pipe 1 is generated while the body 11 is bent, and the return force to return in the direction of the pipe 1 is added while the auxiliary extension part 13 is contracted. The inner diameter hole 11d of the body 11 can firmly fix the pipe 1 in both directions.

The present invention is not limited to the above-described embodiments, and of course, modifications may be made by those skilled in the art without departing from the spirit of the present invention.

For example, in the exemplary embodiment of the present invention, three free groove extension parts and three auxiliary extension parts are illustrated in the ring-shaped body, but the shape of the body may be very diverse, and the number of the free groove extension parts or the auxiliary extension parts is respectively. At least one can be produced in a wide variety of numbers.

Therefore, the scope of the claims in the present invention will not be defined within the scope of the detailed description, but will be defined by the following claims and the technical spirit thereof.

As described above, according to the pipe peter clamp of the present invention, the contact area with the pipe is widened to provide safety and firm grip force, and it is possible to prevent the breakage of the pipe or the leakage of the fluid by not damaging the pipe surface. It does not require separate processing such as blade processing, and it is possible to manufacture the product easily only by cutting and bending processing using plate structurally, which can reduce the manufacturing cost of the product, increase the productivity of the product, The shape is uniform to improve the precision and quality of the product, as well as to easily produce products of various standards.

1 is a perspective view showing a conventional pipe peter clamp.

FIG. 2 is a cross-sectional view illustrating the pipe peter clamp of FIG. 1 in a state in which the pipe peter clamp is fastened between the female bracket and the male bracket.

3 is a perspective view showing a pipe peter clamp according to a preferred embodiment of the present invention.

4 is a perspective view showing a pipe peter clamp according to another preferred embodiment of the present invention.

FIG. 5 is a cross-sectional view illustrating the pipe peter clamp of FIG. 4 in a state in which the pipe peter clamp is fastened between the female bracket and the male bracket.

FIG. 6 is an enlarged cross-sectional view of part “A” of FIG. 5.

7 to 11 are enlarged cross-sectional views illustrating various embodiments of FIG. 6.

12 is a perspective view showing a pipe peter clamp according to another preferred embodiment of the present invention.

FIG. 13 is a side cross-sectional view illustrating an operating state of FIG. 12.

Claims (6)

In constructing a pipe peter clamp which is fixedly installed between the female bracket and the male bracket which are coupled to each other so as to allow forward insertion of the pipe but prevents backward departure, A ring-shaped body having an inner diameter portion contacting the pipe and having at least one clearance groove formed in the outer diameter direction from the inner diameter portion so as to allow the diameter expansion of the inner diameter portion; And The length of the clearance groove is formed to protrude from the body so as to have an extension clearance groove extending beyond the outer diameter of the body, is connected to extend in a shape surrounding the outer side of the extension clearance groove, the body to enable elastic deformation At least one free groove extension part bent at a predetermined angle with reference to; Pipe Peter clamp, characterized in that comprises a. The method of claim 1, The circumferential surface of the body is formed by forming an inclined surface that is inclined at a predetermined angle to resist the reverse departure of the inserted pipe, the clearance groove is formed on the radiation at equal isometric intervals relative to the body, the clearance groove extension The part is formed with an extension clearance groove which is connected to the clearance groove of the body, is bent at a predetermined angle with the body, The pipe Peter clamp, characterized in that the body and the free groove extension portion is made of stainless spring steel that is heat treated to enable elastic deformation with each other. The method of claim 1, Pipe Peter clamp, characterized in that it further comprises an auxiliary extension portion having the same outline as the free groove extension portion, and bent at the same angle as the free groove extension portion to enable elastic deformation but without the free groove. The method of claim 3, wherein The clearance groove extension portion and the auxiliary extension portion further comprises an elastic bending portion bent at the front end portion in contact with the inner diameter step of the male bracket and / or a connection bending portion at the rear end connected to the body, The body, the pipe Peter clamp characterized in that it further comprises a blade bent in the inner diameter surface in contact with the pipe. The method of claim 1, The body and the free groove extension part, the inner diameter of the body in the stainless steel spring plate, and the inner diameter portion is radially cut to the inner diameter to form a free groove, and the outer portion of the body and the free groove extension except the joint portion The pipe is made by betting, bending the marginal groove extension on the basis of the body fixed to the steel plate by the joint, and finally, cutting the joint and fabricating the body and the marginal groove extension. Peter clamp. The method of claim 3, wherein The body has an elliptical inner diameter hole having a narrow diameter (d) and a wide diameter (D) is formed so as to be able to forcibly bite the pipe by deformation of the body, and two clearance grooves are formed in the wide diameter (D) portion , The clearance groove extending portion is vertically bent in a shape surrounding the clearance groove to serve as a rotation center point in a portion having a wide diameter (D), The auxiliary extension portion, the pipe Peter clamp, characterized in that the narrow diameter (d) forms an elastic bending portion that is bent the end portion to be in contact with the inner diameter step of the male bracket to have a restoring force in the direction of forcibly biting the pipe.