Nodular cast iron pipeline welding machine cable interface protection device and use method

Abstract

The invention discloses a nodular cast iron pipeline welding machine cable interface protection device and a using method, the nodular cast iron pipeline welding machine cable interface protection device comprises a first connecting part and a second connecting part, the first connecting part and the second connecting part are fixedly connected, the first connecting part is detachably connected to a welding machine cable interface, and the second connecting part is detachably connected to the welding machine cable interface. The second connecting part is detachably connected to the cable quick plug; the quick cable plug is compact in structure and convenient to mount, and can firmly protect the quick cable plug from loosening when an operator pulls a cable by using a welding machine in daily life, so that the welding machine can normally work for a long time, and the personal safety of the operator of the welding machine is protected.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline welding, and particularly relates to a protection device for a cable interface of a ductile iron pipeline welding machine and a using method thereof. Background Art

[0002] During the casting process of ductile iron pipelines, small holes are drilled in the core of the socket plug to form impact points on the end face of the socket of the cast pipeline. In the subsequent cement internal coating process, cement is injected into the rapidly rotating ductile iron pipeline, and the cement then covers the inner wall of the pipeline under the action of centrifugal force. The existence of the impact points causes the cast iron pipe to vibrate violently during centrifugal rotation, and the resulting vibration force enables the cement to adhere to the inner wall of the pipeline better and more evenly, effectively reducing the occurrence of quality accidents caused by subsequent shedding of the inner lining cement.

[0003] Due to poor core hole opening, poor casting, or collision during the transportation of ductile iron pipelines, these factors may cause the impact points to fall off before reaching the cement internal coating process. Therefore, it is necessary to weld and repair the pipelines lacking impact points before internal coating, and manually add the impact points again. During the use of on-site welding repair electric welders, due to frequent repeated pulling of the cables, the cable quick plugs inserted into the cable interfaces are easily loosened, and the plastic sheaths at the tails of the quick plugs are also easily damaged, resulting in abnormal operation of the welder and posing safety hazards.

[0004] In view of the above defects, the creator of the present invention finally obtained the present invention through long-term research and practice. Summary of the Invention

[0005] To solve the above technical defects, the technical solution adopted by the present invention is to provide a protection device for a cable interface of a ductile iron pipeline welding machine, including a first connection part and a second connection part. The first connection part and the second connection part are fixedly connected. The first connection part is detachably connected to the cable interface of the welding machine, and the second connection part is detachably connected to the cable quick plug.

[0006] Preferably, the first connection part includes a base and a pressing plate. Both the base and the pressing plate are set as semi-circular ring structures. One end of the base and the pressing plate is connected through a first connection component, and the other end of the base and the pressing plate is connected through a second connection component. The base and the pressing plate are combined into an integral circular ring structure through the connection of the first connection component and the second connection component, and the second connection part is fixedly arranged on the base.

[0007] Preferably, the second connecting portion includes a fixing plate and a strap. The fixing plate extends linearly parallel to the axis of the base. A fitting groove is provided on the fixing plate and extends along the direction in which the fixing plate extends. The cable quick plug is disposed in the fitting groove, and the strap binds and connects the cable quick plug and the fixing plate.

[0008] Preferably, the cross-section of the fitting groove is arc-shaped, and the axis of the fitting groove is consistent with the axis of the base.

[0009] Preferably, flexible fitting layers are provided on the inner ring surfaces of the base and the pressing plate and on the groove wall of the fitting groove. The flexible fitting layer is made of rubber material. The first connecting portion is in contact and fits with the welding machine cable interface through the flexible fitting layer, and the second connecting portion is in contact and fits with the welding machine cable interface through the flexible fitting layer.

[0010] Preferably, the first connecting assembly is provided as a hinge, and the base and the pressing plate are rotatably connected through the hinge.

[0011] Preferably, the first connecting assembly includes two fixed connecting blocks. The two fixed connecting blocks are respectively disposed at the ends of the base and the pressing plate, and fixed connecting holes are provided on both of the fixed connecting blocks. The fixed connecting holes on the two fixed connecting blocks are in one-to-one correspondence and coaxially arranged. A connecting shaft is disposed in the correspondingly arranged two fixed connecting holes. Limiting rings are respectively provided at both ends of the connecting shaft, and both of the fixed connecting blocks are disposed between the two limiting rings.

[0012] Preferably, the second connecting assembly includes two movable connecting blocks. The two movable connecting blocks are respectively disposed at the ends of the base and the pressing plate, and a first clamping connecting hole and a second clamping connecting hole are respectively provided on the two movable connecting blocks. The first clamping connecting hole and the second clamping connecting hole are in one-to-one correspondence and coaxially arranged. The first clamping connecting hole is a through hole, and the second clamping connecting hole is a threaded hole. A clamping screw passes through the first clamping connecting hole and is threadedly connected to the second clamping connecting hole.

[0013] Preferably, limiting grooves are provided on the fixing plate. The limiting grooves are symmetrically arranged in pairs on both sides of the fitting groove, and the strapped strap is disposed in the limiting grooves.

[0014] Preferably, the cross-section of the limiting groove is triangular.

[0015] Preferably, a method for using the protection device for the cable interface of the ductile iron pipe welding machine includes symmetrically arranging the base and the pressing plate on the outer convex part of the welding machine cable interface, and fixedly connecting the base and the pressing plate through the first connection component and the second connection component to clamp and fix the welding machine cable interface. Place the cable quick plug in the fitting groove, insert the cable quick plug into the welding machine cable interface, and then simultaneously surround the fixing plate and the cable quick plug with the binding strap and tie them together to fixedly arrange the cable quick plug on the fixing plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: The structure of the present invention is compact and easy to install. During the daily use of the welding machine by the operator to pull the cable, the cable quick plug is firmly protected from loosening, ensuring that the welding machine can work normally for a long time and protecting the personal safety of the welding machine operator. Brief Description of the Drawings

[0017] Figure 1 It is the front view of the structure of the protection device for the cable interface of the ductile iron pipe welding machine;

[0018] Figure 2 It is the top view of the structure of the protection device for the cable interface of the ductile iron pipe welding machine;

[0019] Figure 3 It is the side view of the structure of the protection device for the cable interface of the ductile iron pipe welding machine;

[0020] Figure 4 It is the structural view of the first connection component.

[0021] The numbers in the figure represent:

[0022] 1 - First connection part; 2 - Second connection part; 11 - Base; 12 - Pressing plate; 13 - First connection component; 14 - Second connection component; 15 - Flexible fitting layer; 21 - Fixing plate; 22 - Fitting groove; 23 - Limiting groove; 131 - Fixed connection block; 132 - Connecting shaft; 133 - Limiting ring; 141 - Movable connection block; 142 - First clamping connection hole; 143 - Second clamping connection hole; 144 - Clamping screw. Detailed Embodiment

[0023] The above and other technical features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.

[0024] Embodiment 1

[0025] As Figure 1 、 Figure 2 and Figure 3 shown, Figure 1It is the front view of the structure of the protection device for the cable interface of the ductile iron pipe welding machine; Figure 2 It is the top view of the structure of the protection device for the cable interface of the ductile iron pipe welding machine; Figure 3 It is the side view of the structure of the protection device for the cable interface of the ductile iron pipe welding machine.

[0026] The protection device for the cable interface of the ductile iron pipe welding machine according to the present invention includes a first connection part 1 and a second connection part 2. The first connection part 1 and the second connection part 2 are fixedly connected. The first connection part 1 is detachably connected to the welding machine cable interface, and the second connection part 2 is detachably connected to the cable quick plug, so as to fix the relative positions between the welding machine cable interface and the cable quick plug, and avoid the disconnection between the welding machine cable interface and the cable quick plug during the repeated pulling of the cable.

[0027] Specifically, the first connection part 1 includes a base 11 and a pressing plate 12. Both the base 11 and the pressing plate 12 are set as semi-circular ring structures. The base 11 and the pressing plate 12 are coaxially arranged, and one end of the base 11 and the pressing plate 12 is connected by a first connection component 13, and the other end of the base 11 and the pressing plate 12 is connected by a second connection component 14, so that the base 11 and the pressing plate 12 can be combined into an integral ring structure. The second connection part 2 is fixedly arranged on the base 11. By symmetrically arranging the base 11 and the pressing plate 12 on the outer bulge of the welding machine cable interface, and fixedly connecting the base 11 and the pressing plate 12 through the first connection component 13 and the second connection component 14 to clamp and fix the welding machine cable interface, the first connection part 1 is detachably connected to the welding machine cable interface.

[0028] The second connection part 2 includes a fixing plate 21 and a binding band. The fixing plate 21 extends linearly parallel to the axis of the base 11. A fitting groove 22 is arranged on the fixing plate 21, and the fitting groove 22 extends along the extending direction of the fixing plate 21. The cable quick plug or the cable is arranged in the fitting groove 22, and the cable quick plug or the cable is tied to the fixing plate 21 by the binding band, so as to realize the detachable connection of the second connection part 2 to the cable quick plug.

[0029] Preferably, the cross-section of the fitting groove 22 is arc-shaped, which is convenient for the fitting groove 22 to fit with the cable quick plug. Generally, the axis of the fitting groove 22 is consistent with the axis of the base 11, so as to ensure that after the first connection part 1 and the second connection part 2 respectively connect and fix the welding machine cable interface and the cable quick plug, the welding machine cable interface and the cable quick plug are coaxial.

[0030] The length of the fixed plate 21 is generally longer than that of the cable quick plug, so as to protect the plastic shield at the tail of the cable quick plug from being damaged by force.

[0031] Preferably, flexible fitting layers 15 are provided on the inner ring surfaces of the base 11 and the pressing plate 12 and on the groove walls of the fitting groove 22. The flexible fitting layers 15 are made of rubber material, so as to ensure flexible fitting of the welding machine cable interface and the cable quick plug, and at the same time increase the contact area to reduce the relative movement between the first connection part and the welding machine cable interface, and between the second connection part 2 and the cable quick plug, and ensure the stable positions of the welding machine cable interface and the cable quick plug on the present invention.

[0032] The structure of the present invention is compact and easy to install. During the daily use of the welding machine by the operator to pull the cable, the cable quick plug is firmly protected from loosening, ensuring that the welding machine can work normally for a long time and protecting the personal safety of the welding machine operator.

[0033] Embodiment 2

[0034] The first connection assembly 13 is arranged as a hinge, and the base 11 and the pressing plate 12 are rotationally connected through the hinge, so that the opening and closing of the base 11 and the pressing plate 12 can be realized.

[0035] As Figure 4 shown, Figure 4 is the structural view of the first connection assembly; in another embodiment, the first connection assembly 13 includes two fixed connection blocks 131. The two fixed connection blocks 131 are respectively arranged at the ends of the base 11 and the pressing plate 12, and fixed connection holes are provided on the two fixed connection blocks 131. The fixed connection holes on the two fixed connection blocks 131 are arranged in one-to-one correspondence and coaxially. A connection shaft 132 is arranged in the correspondingly arranged two fixed connection holes, and limiting rings 133 are respectively arranged at both ends of the connection shaft 132. The two fixed connection blocks 131 are both arranged between the two limiting rings 133.

[0036] Connected in this way, the base 11 and the pressing plate 12 can be pulled apart along the connection shaft 132, so as to open the distance between the base 11 and the pressing plate 12 for sleeving and installing on the welding machine cable interface.

[0037] The second connecting component 14 includes two movable connecting blocks 141 which are respectively arranged at the ends of the base 11 and the pressing plate 12. First clamping connection holes 142 and second clamping connection holes 143 are respectively arranged on the two movable connecting blocks 141. The first clamping connection holes 142 and the second clamping connection holes 143 are arranged coaxially in one-to-one correspondence. The first clamping connection hole 142 is a through hole, and the second clamping connection hole 143 is a threaded hole. A clamping screw 144 passes through the first clamping connection hole 142 and is threadedly connected to the second clamping connection hole 143, so as to realize the fixed connection of the second connecting component 14 to the ends of the base 11 and the pressing plate 12.

[0038] Preferably, a lock washer is also sleeved on the clamping screw 144 to ensure the stability of the connection state of the second connecting component 14.

[0039] Preferably, a limiting groove 23 is arranged on the fixing plate 21. The limiting grooves 23 are symmetrically arranged in pairs on both sides of the fitting groove 22. The tied straps are arranged in the limiting grooves 23 to prevent the axial movement of the straps and improve the fixed connection effect of the straps.

[0040] Generally, the cross section of the limiting groove 23 is triangular. The inclined bottom of the limiting groove 23 is more convenient for the circular tying and fixing of the straps.

[0041] The above are only the preferred embodiments of the present invention, which are illustrative rather than restrictive to the present invention. Those skilled in the art understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, but all will fall within the protection scope of the present invention.

Claims

1. A protection device for the cable interface of a ductile iron pipe welding machine, characterized in that, It includes a first connection part and a second connection part. The first connection part and the second connection part are fixedly connected. The first connection part is detachably connected to the welding machine cable interface, and the second connection part is detachably connected to the cable quick plug. The first connection part includes a base and a pressing plate. Both the base and the pressing plate are set as semi-circular ring structures. One end of the base and the pressing plate is connected by a first connection component, and the other end of the base and the pressing plate is connected by a second connection component. The base and the pressing plate are combined into an integral ring-shaped structure through the connection of the first connection component and the second connection component. The second connection part is fixedly arranged on the base.

2. The ductile iron pipe welding machine cable interface protection device according to claim 1, characterized in that, The second connection part includes a fixing plate and a binding strap. The fixing plate extends linearly parallel to the axis of the base. A fitting groove is arranged on the fixing plate, and the fitting groove extends along the extending direction of the fixing plate. The cable quick plug is arranged in the fitting groove, and the binding strap binds and connects the cable quick plug and the fixing plate.

3. The ductile iron pipe welding machine cable interface protection device according to claim 2, characterized in that, The cross-section of the fitting groove is arc-shaped, and the axis of the fitting groove is consistent with the axis of the base.

4. The ductile iron pipe welding machine cable interface protection device according to claim 3, characterized in that, Flexible fitting layers are arranged on the inner ring surfaces of the base and the pressing plate and the groove wall of the fitting groove. The flexible fitting layer is made of rubber material. The first connection part contacts and fits with the welding machine cable interface through the flexible fitting layer, and the second connection part contacts and fits with the welding machine cable interface through the flexible fitting layer.

5. The ductile iron pipe welding machine cable interface protection device according to claim 4, characterized in that, The first connection component is set as a hinge, and the base and the pressing plate are rotatably connected through the hinge.

6. The ductile iron pipe welding machine cable interface protection device according to claim 4, characterized in that, The first connection component includes two fixedly connected blocks. The two fixedly connected blocks are respectively arranged at the ends of the base and the pressing plate, and fixing connection holes are arranged on both of the two fixedly connected blocks. The fixing connection holes on the two fixedly connected blocks are arranged in one-to-one correspondence and coaxially. A connecting shaft is arranged in the correspondingly arranged two fixing connection holes. Limiting rings are respectively arranged at both ends of the connecting shaft, and both of the two fixedly connected blocks are arranged between the two limiting rings.

7. The ductile iron pipe welding machine cable interface protection device according to claim 5 or 6, characterized in that, The second connection component includes two movably connected blocks. The two movably connected blocks are respectively arranged at the ends of the base and the pressing plate, and a first clamping connection hole and a second clamping connection hole are respectively arranged on the two movably connected blocks. The first clamping connection hole and the second clamping connection hole are arranged in one-to-one correspondence and coaxially. The first clamping connection hole is a through hole, and the second clamping connection hole is a threaded hole. A clamping screw passes through the first clamping connection hole and is threadedly connected with the second clamping connection hole.

8. The protection device for the cable interface of the ductile iron pipe welding machine according to claim 2, characterized in that, Limiting grooves are arranged on the fixing plate. The limiting grooves are symmetrically arranged in pairs on both sides of the fitting groove. The binding strap after binding is arranged in the limiting grooves.

9. The protection device for the cable interface of the ductile iron pipe welding machine according to claim 8, wherein, The cross-section of the limiting groove is set as a triangle.

10. A method for using a protection device for a cable interface of a ductile iron pipe welding machine according to any one of claims 7-9, characterized in that, Including, by symmetrically arranging the base and the pressing plate at the outer convex part of the welding machine cable interface, and fixedly connecting the base and the pressing plate through the first connecting component and the second connecting component to clamp and fix the welding machine cable interface, placing the cable quick plug in the fitting groove, inserting the cable quick plug into the welding machine cable interface, and then simultaneously surrounding the fixing plate and the cable quick plug with the binding band to bind them together, so as to fixedly arrange the cable quick plug on the fixing plate.

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