KR102577675B1 - Pipe clamping device for fusion welding - Google Patents

Abstract

The present invention is for fusing synthetic resin pipes connected in various shapes, and includes a first clamp 100 for clamping the first synthetic resin pipe; A pair of first rotation coupling bands 130 rotatably coupled to the first clamp on the outside of the first clamp; A second clamp (200) for clamping the second synthetic resin pipe; A pair of second rotation coupling bands 230 provided with screw coupling nuts 233 and rotatably coupled to the second clamp on the outside of the second clamp; A straight line whose one end is coupled to the first rotational coupler 130 and the other end of which is slidably coupled to the second rotary coupler 230 in order to guide the movement path of the second clamp with respect to the first clamp. shaped guide rod (140); To drive the second clamp to move relative to the first clamp, one end is rotatably coupled to the first rotation coupler and the other end is screwed to the nut member of the second rotation coupler, and one end A screw rod (150) provided with a rotation control unit; The first clamp 100 includes a 1-1 clamp 110 in the form of a semi-circle ring and a 1-2 clamp 120 in the form of a semi-circle ring, forming a ring shape by combining the first synthetic resin. Capable of clamping pipes; Support shaft coupling plates (119a) are provided on both edges of the semicircular ring shape of the 1-1 clamp; A second support shaft (119b) is provided that protrudes radially outward from the support shaft coupling plate (119a); The first rotation coupler 130 is provided with a rotation coupler shaft 134 coaxially coupled to the second support shaft 119b; It is characterized by .

Description

Manual synthetic resin pipe clamping device for fusing synthetic resin pipes {PIPE CLAMPING DEVICE FOR FUSION WELDING}

The present invention relates to a manual synthetic resin pipe clamping device for fusing synthetic resin pipes, and more specifically, to a synthetic resin pipe clamping device that can clamp and compress synthetic resin pipes so as to fuse variously arranged synthetic resin pipes. .

A variety of synthetic resin pipes are widely used, and PE pipes will be described below as an example.

Polyethylene (PE) is one of the most widely used synthetic polymer materials in the world. It is not damaged by acids, alkalis, and various chemicals, so it does not corrode, and has cold resistance, weather resistance, flexibility, and abrasion resistance. Because it has excellent properties, its demand is steadily increasing and it is used in various industrial fields.

In particular, HDPE (high density polyethylene) pipe is light in weight and easy to transport, handle, and construct, so it is used to protect sewage, sewage, and rainwater pipes in urban areas such as apartments and houses, underground conduit pipes, and various cable duct pipes, irrigation canals, etc. It is used as a pipe for agricultural use (farmland readjustment) in reclaimed land and reclaimed land, sewage and wastewater pipes for factories and livestock farms, and collection pipes (perforated pipes) for sewage treatment plants, excrement treatment plants, and landfills. In particular, it is used in landfills. , are buried before landfill and are used as leachate transfer pipes and gas transfer pipes.

Therefore, due to the nature of the PE pipe, multiple pipes must be connected, and there are connection methods such as using a watertight socket (joint pipe), heat fusion, and electric fusion, with the heat fusion method being mainly used.

Heat fusion refers to connecting synthetic resin pipes by heating and melting them.

In other words, thermal fusion (fusion welding) refers to melting the base material itself and joining it in a molten state. It is different from general welding using other materials in that it directly melts and joins the base material without using other materials. .

Thermal fusion is a process of melting and joining the end surfaces of synthetic resin pipes. A heating plate (heater) is inserted between a pair of synthetic resin pipes facing each other, and the end surfaces of the synthetic resin pipes are heated by contacting the end surfaces of the synthetic resin pipes with the heating plate. and melted, and in this state, the hot plate is removed and the end surfaces of the synthetic resin pipes are pressed together and joined.

Meanwhile, such heat fusion generally connects a pair of synthetic resin pipes arranged coaxially to each other.

Therefore, a clamping device for fusion that can clamp a pair of synthetic resin pipes arranged coaxially and move them in a direction where they meet each other is widely used.

However, this type of clamping device for fusion has the following problems.

The commercially available clamping device for fusion is configured to move at least two clamps along the bottom frame, making the overall device large, so it can only be used on a horizontal surface, and it is impossible to connect synthetic resin pipes vertically.

In addition, commercially available clamping devices for fusion can only fuse synthetic resin pipes that are coaxially connected to each other, and if two synthetic resin pipes are arranged somewhat obliquely or inclined, the clamping device for fusion can not be applied.

Republic of Korea Patent Registration No. 10-2235648 “Pipe fusion machine and pipe fusion machine set including the same” (registered on March 29, 2021) Republic of Korea Patent Registration No. 10-0456613 “Pipe clamping device for pipe fusion machine” (registered on November 1, 2004)

The present invention was developed to solve the problems of the prior art as described above, and can fuse all synthetic resin pipes that are connected horizontally or vertically, and can also be used not only for synthetic resin pipes that are coaxially connected to each other, but also to be placed at an angle. The object is to provide a clamping device for fusion that can fuse synthetic resin pipes that are curved or inclined.

In order to solve the above problems, the present invention includes a first clamp 100 for clamping a first synthetic resin pipe; A pair of first rotation coupling bands 130 rotatably coupled to the first clamp on the outside of the first clamp; A second clamp (200) for clamping the second synthetic resin pipe; A pair of second rotation coupling bands 230 provided with screw coupling nuts 233 and rotatably coupled to the second clamp on the outside of the second clamp; A straight line whose one end is coupled to the first rotational coupler 130 and the other end of which is slidably coupled to the second rotary coupler 230 in order to guide the movement path of the second clamp with respect to the first clamp. shaped guide rod (140); To drive the second clamp to move relative to the first clamp, one end is rotatably coupled to the first rotation coupler and the other end is screwed to the nut member of the second rotation coupler, and one end A screw rod (150) provided with a rotation control unit; The first clamp 100 includes a 1-1 clamp 110 in the form of a semi-circle ring and a 1-2 clamp 120 in the form of a semi-circle ring, forming a ring shape by combining the first synthetic resin. Capable of clamping pipes; Support shaft coupling plates (119a) are provided on both edges of the semicircular ring shape of the 1-1 clamp; A second support shaft (119b) is provided that protrudes radially outward from the support shaft coupling plate (119a); The first rotation coupler 130 is provided with a rotation coupler shaft 134 coaxially coupled to the second support shaft 119b; It is characterized by .

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In the above, the 1-1 clamp includes a pair of semi-circle ring-shaped clamp body plates facing each other, a plurality of clamp body plate coupling bolts penetrating the pair of clamp body plates, and the clamp body plate. A clamp body plate coupling nut that is screwed to the coupling bolt and prevents the pair of clamp body plates from being separated from each other, and a clamp body plate coupling nut that surrounds the clamp body plate coupling bolt between the pair of clamp body plates. It may include spacers that space the plates apart from each other.

As described above, the present invention can be fused not only when synthetic resin pipes are connected horizontally but also when they are connected vertically.

In addition, the present invention can fuse synthetic resin pipes that are coaxially connected to each other, as well as synthetic resin pipes that are arranged somewhat obliquely or obliquely.

1 is a perspective view of a manual synthetic resin pipe clamping device for fusing synthetic resin pipes according to an embodiment of the present invention;
Figure 2 is an exploded perspective view of Figure 1;
Figure 3 is a front view of Figure 1;
Figure 4 is a side view of Figure 1;
Figure 5 is a cross-sectional view taken along line AA of Figure 1;
Figure 6 is a cross-sectional view of Figure 5 in an isolated state;
Figure 7 is a cross-sectional view based on BB of Figure 4;
Figure 8 is a plan conceptual diagram of the manual synthetic resin pipe clamping device of Figure 1 clamping synthetic resin pipes arranged coaxially with each other;
Figure 9 is a plan conceptual diagram of the manual synthetic resin pipe clamping device of Figure 1 clamping synthetic resin pipes arranged at an angle to each other.

Below, with reference to the attached drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. In order to clearly explain the present invention in the drawings, parts that are not related to the description are omitted, and similar parts are given similar reference numerals throughout the specification.

Throughout the specification, when a part is said to “include” a certain element, this means that it may further include other elements rather than excluding other elements, unless specifically stated to the contrary.

FIG. 1 is a perspective view of a manual synthetic resin pipe clamping device for fusing synthetic resin pipes according to an embodiment of the present invention, FIG. 2 is an separated perspective view of FIG. 1, FIG. 3 is a front view of FIG. 1, and FIG. 4 is a view of FIG. 1. It is a side view, Figure 5 is a cross-sectional view based on A-A of Figure 1, Figure 6 is a cross-sectional view in an separated state of Figure 5, Figure 7 is a cross-sectional view based on B-B of Figure 4, and Figure 8 is a manual synthetic resin pipe clamping of Figure 1. It is a plan view of the device clamping synthetic resin pipes arranged coaxially, and FIG. 9 is a plan view of the manual synthetic resin pipe clamping device of FIG. 1 clamping synthetic resin pipes arranged at an angle to each other.

This device largely consists of a first clamp 100 to which the first rotation coupling table 130 is coupled, a second clamp 200 to which the second rotation coupling table 230 is coupled, a first rotation coupling table 130, and a second clamp 100 to which the first rotation coupling table 130 is coupled. It consists of a guide rod (140) and a screw rod (150) mounted on the two-turn coupling table (230), and this device is used to fuse the first synthetic resin pipe (10) and the second synthetic resin pipe (20). .

The first clamp 100 is for clamping the first synthetic resin pipe 10 and fixing it to the first synthetic resin pipe 10.

In this embodiment, the first clamp 100 is a first synthetic resin pipe in which the 1-1 clamp 110 in the form of a semi-circle ring and the 1-2 clamp 120 in the form of a semi-circle ring are combined to form a ring shape. (10) is clamped.

First support shafts 111 extending along the longitudinal direction of the first synthetic resin pipe are provided at both edge ends of the semicircular ring shape of the 1-1 clamp 110, and a clamping force is provided on the first support shaft 111. The bolt 112 is provided to be rotatable.

In this embodiment, the first support shaft 111 is a bolt member coupled to a pair of clamp body plates 115.

The clamping bolt 112 includes an annular body 112a having a hole through which the first support shaft 111 passes, and a male threaded body 112b extending from the annular body 112a and having a male thread.

A clamping nut 114 is screwed to the male threaded body 112b of the clamping bolt 112. In addition, the clamping bolt 112 is equipped with a washer 113 inside the clamping nut 114.

The clamping bolt 112 can rotate around the first support shaft 111.

Meanwhile, nut mounting bases 121 are formed on both edge ends of the semicircular ring shape of the 1-2 clamp 120.

Therefore, after mounting the 1-1 clamp 110 and the 1-2 clamp 120 in a ring shape on the outer peripheral surface of the first synthetic resin pipe 10 with the first synthetic resin pipe 10 in between, the clamping nut Rotate the clamping bolt 112 so that (114) is located near the nut seat 121, and attach the washer 113 and the clamping nut 114 to the nut seat 121 of the 1-2 clamp 120. ) (i.e., tightening the clamping nut 114), the 1-1 clamp 110 and the 1-2 clamp 120 clamp the first synthetic resin pipe 10 and the first synthetic resin pipe 10 ) is fixed.

In this embodiment, the 1-1 clamp 110 combines a pair of semi-circular ring-shaped clamp body plates 115 facing each other and a plurality of clamp body plates penetrating the pair of clamp body plates 115. A clamp body plate coupling nut 117 that is screwed to the bolt 116 and the clamp body plate coupling bolt 116 to prevent the pair of clamp body plates 115 from being separated from each other, and a pair of clamp body plates. (115) It is a structure composed of a spacer 118 that surrounds the clamp body plate coupling bolt 116 and separates the pair of clamp body plates 115 from each other.

The clamp body plate 115 is formed with a plurality of openings to reduce weight.

The structure of the 1-1 clamp 110 is also applied to the 1-2 clamp 120 and the 2-1 clamp 210 and 2-2 clamp 220 described later.

Support shaft coupling plates 119a are provided on both edges of the semicircle ring shape of the pair of clamp body plates 115 of the 1-1 clamp 110, and are simultaneously coupled to the pair of clamp body plates 115, A second support shaft (119b) is provided that protrudes radially outward from the support shaft coupling plate (119a).

Meanwhile, the second support shaft 119b has a separation prevention groove 119b-1 formed in its longitudinal central portion.

The two second support shafts 119b provided at both edges of the 1-1 clamp 110 preferably extend along an imaginary straight line passing through the center of the first synthetic resin pipe 10.

That is, when the two second support axes (119b) are each extended, the extension lines coincide with each other and also pass through the center of the first synthetic resin pipe (10).

The first rotation coupler 130 is coupled to the 1-1 clamp 110, specifically the second support shaft 119b. That is, the first rotation coupling table 130 is coupled to the outside of the 1-1 clamp 110.

The first rotary coupler 130 is provided between a pair of rotary coupler body plates 131 facing each other and each having two holes formed thereon, and a pair of rotary coupler body plates 131 to form a rotating coupler body. A first through pipe 132 that communicates with one hole of the plate 131 is provided between a pair of rotary coupling body plates 131 and communicates with the other hole of the rotary coupling body plate 131. The second through pipe 133 is arranged in parallel with the first through pipe 132, and is fixed to a pair of rotating coupler body plates 131 in the form of a pipe, with a hollow inside formed and a female thread on the side to prevent separation. It consists of a shaft 134 for a rotating coupling unit formed with a ball 134a, and a bolt 135 for preventing separation fastened to the female threaded hole 134a for preventing separation.

At this time, the first rotational coupler 130 is coupled to the second support shaft 119b so that the second support shaft 119b is inserted into the hollow of the rotational coupler shaft 134, and the separation prevention bolt 135 is advanced. The separation prevention bolt 135 is inserted into the separation prevention groove 119b-1 of the second support shaft 119b to prevent the first rotational coupler 130 from separation.

In this structure, the second support shaft 119b and the shaft 134 for the rotational coupler are coaxially connected, and the first rotational coupler 130 has a structure that can be rotated on the 1-1 clamp 110.

The second clamp 200 is for clamping the second synthetic resin pipe and fixing it to the second synthetic resin pipe 20. Since the second clamp 200 has the same structure as the first clamp 100, detailed description will be omitted.

In addition, the second rotary coupler 230, which is rotatably coupled to the second clamp 200 on the outside of the second clamp 200, also has a very similar structure to the first rotary coupler 130.

That is, the second rotary coupler 230 includes a rotary coupler body plate 231, a first through pipe 232, a shaft 234 for the rotary coupler, and a bolt 235 for preventing separation.

However, the second rotary coupling table 230 is provided with a screw coupling nut 233 instead of the second through pipe 133. The screw coupling nut 233 is fixed to the rotating coupling body plate 231.

Except for the screw coupling nut 233, the second rotary coupler 230 has the same structure as the first rotary coupler 130, so detailed description is omitted.

The guide rod 140 and the screw rod 150 are respectively coupled to the first rotation joint 130 and the second rotation joint 230.

The guide rod 140 and the screw rod 150 are arranged parallel to each other.

The guide rod 140 is provided along the first through pipe 132 of the first rotation coupler 130 and the first through pipe 232 of the second rotation coupler 230.

The guide rod 140 is used to guide the movement path of the second clamp 200 with respect to the first clamp 100.

In this embodiment, one end of the guide rod 140 is slidably coupled to the first through pipe 132 of the first rotation coupler 130, and the other end of the guide rod 140 is a second rotation coupler ( It is slidably coupled to the first through pipe 232 of 230).

In some cases, one end of the guide rod 140 may be configured to be fixed to the first rotation coupler 130.

That is, it is sufficient for the guide rod 140 to guide the movement path of the second clamp 200 with respect to the first clamp 100.

Meanwhile, breakaway prevention sections 141 are coupled to both ends of the guide rod 140.

The screw rod 150 is provided to drive the second clamp 200 to move with respect to the first clamp 100.

The screw rod 150 is provided along the second through pipe 133 of the first rotary coupling base 130 and the screw coupling nut 233 of the second rotary coupling base 230.

One end of the screw rod 150 is rotatably coupled to the first rotary coupling table 130.

Additionally, a nut-shaped rotation control unit 151 is provided at one end of the screw rod 150 to rotate the screw rod 150.

In addition, the screw rod 150 is equipped with a nut 152 for positioning. In this embodiment, the position of the position fixing nut 152 on the screw rod 150 is fixed by a double nut mounting method.

Therefore, the position (posture) of the screw rod 150 on the first rotation coupling table 130 is fixed by the rotation operation unit 151 and the position fixing nut 152, and is guided by the second through pipe 133. Accordingly, it is in a state where it can be rotated on the first rotation coupling table 130.

In addition, the other end of the screw rod 150 is screwed to the screw coupling nut 233 of the second rotating coupling base 230.

Therefore, when the rotation control unit 151 of the screw rod 150 is rotated to rotate the screw rod 150, the rotational movement of the screw rod 150 by the screw coupling nut 233 is performed by the second rotation coupling table 230. ) is converted to a linear motion, and the second clamp 200 moves linearly together with the second rotation coupling table 230, so that the second clamp 200 moves with respect to the first clamp 100.

The operation of this embodiment as described above will be described.

The first synthetic resin pipe 10 is clamped with the first clamp 100, and the second synthetic resin pipe is clamped with the second clamp 200.

This can be done in a state in which a pair of synthetic resin pipes 10 and 20 are arranged coaxially with each other as shown in FIG. 8, or in a state in which a pair of synthetic resin pipes 10 and 20 are arranged at an angle to each other as shown in FIG. 9.

8 and 9 only show the approximate clamping state of the first clamp 100 and the second clamp 200 and the approximate arrangement state of the screw rod 150.

Hereinafter, the description will be made especially with reference to FIG. 9 .

When this device clamps a pair of synthetic resin pipes (10, 20), the first clamp (100) and the second clamp (200) have an arrangement that is not parallel to each other (as shown in FIG. 9), but the first rotational coupling The stand 130 and the second rotation coupling stand 230 are maintained parallel to each other.

That is, the first rotational coupler 130 is rotated with respect to the first clamp 100, and the second rotary coupler 230 is rotated with respect to the second clamp 200, resulting in a state as shown in FIG. 9.

In this state, by manipulating the rotation operation unit 151 of the guide rod 140 to rotate the guide rod 140, the pair of synthetic resin pipes 10 and 20 can be moved in a direction where they meet each other.

Therefore, through this operation, the pair of synthetic resin pipes 10 and 20 can be melted by contacting the hot plate, and the pair of melted synthetic resin pipes 10 and 20 can also be fused by pressing each other.

In particular, the present invention not only makes it possible to fuse a pair of horizontally inclined synthetic resin pipes (10, 20) as shown in FIG. 9, but also makes it possible to fuse a pair of vertically connected synthetic resin pipes (10, 20). .

The description of the present invention described above is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical idea or essential features of the present invention. will be. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. For example, each component described as unitary may be implemented in a distributed manner, and similarly, components described as distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the claims described below rather than the detailed description above, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention. do.

10: first synthetic resin pipe 20: second synthetic resin pipe
100: 1st clamp
110: 1-1 clamp
111: first support axis
112: Bolt for clamping
112a: Ring-shaped body 112b: Male thread-shaped body
113: Washer 114: Nut for clamping
115: Clamp body plate 116: Clamp body plate coupling bolt
117: Clamp body plate coupling nut 118: Spacer
119a: Support shaft coupling plate 119b: Second support shaft
119b-1: Breakaway prevention groove
120: 1st-2 clamp 121: Nut seat
130: 1st rotation coupling table
131: Rotating joint body plate 132: First through pipe
133: Second through pipe 134: Axis for rotating joint
134a: Female thread hole for preventing separation 135: Bolt for preventing separation
140: Guide rod 141: Breakaway prevention zone
150: screw rod 151: rotation control unit
152: Position fixing nut
200: 2nd clamp
230: 2nd rotation coupling table
231: Rotating joint body plate 232: First through pipe
233: Nut for screw coupling 234: Axis for rotation coupling table
235: Bolt to prevent separation

Claims (4)

A first clamp (100) for clamping the first synthetic resin pipe;
A pair of first rotation coupling bands 130 rotatably coupled to the first clamp on the outside of the first clamp;
A second clamp (200) for clamping the second synthetic resin pipe;
A pair of second rotation coupling bands 230 provided with screw coupling nuts 233 and rotatably coupled to the second clamp on the outside of the second clamp;
A straight line whose one end is coupled to the first rotational coupler 130 and the other end of which is slidably coupled to the second rotary coupler 230 in order to guide the movement path of the second clamp with respect to the first clamp. shaped guide rod (140);
To drive the second clamp to move relative to the first clamp, one end is rotatably coupled to the first rotation coupler and the other end is screwed to the nut member of the second rotation coupler, and one end A screw rod (150) provided with a rotation control unit;
Includes,
The first clamp 100 is configured to clamp the first synthetic resin pipe by forming a ring shape by combining the 1-1 clamp 110 in the form of a semi-circle ring and the 1-2 clamp 120 in the form of a semi-circle ring. It is possible;
Support shaft coupling plates (119a) are provided on both edges of the semicircular ring shape of the 1-1 clamp;
A second support shaft (119b) is provided that protrudes radially outward from the support shaft coupling plate (119a);
The first rotation coupler 130 is provided with a rotation coupler shaft 134 coaxially coupled to the second support shaft 119b;
A manual synthetic resin pipe clamping device for fusing synthetic resin pipes, characterized by:
delete delete According to claim 1,
The 1-1 clamp includes a pair of semi-circular ring-shaped clamp body plates facing each other, a plurality of clamp body plate coupling bolts penetrating the pair of clamp body plates, and a screw on the clamp body plate coupling bolt. A clamp body plate coupling nut that prevents the pair of clamp body plates from being separated from each other while being coupled, and a clamp body plate coupling bolt that surrounds the clamp body plate coupling bolt between the pair of clamp body plates and separates the pair of clamp body plates from each other. A manual synthetic resin pipe clamping device for fusing synthetic resin pipes, characterized in that it includes a spacer.