A welding positioning device for water supply and water delivery pipeline

Abstract

The present invention relates to the technical field of pipeline welding auxiliary technology, and in particular to a water supply and water delivery pipeline welding positioning device, comprising two storage shells, hinges are installed at the adjacent ends of the two storage shells, and pull rings are fixedly connected to the ends of the two storage shells that are away from each other, and positioning blocks are arranged on the tops of the two storage shells, and connecting holes are opened through the interior of the positioning blocks, and a rotating ring is rotatably connected to the interior of the connecting hole, and a clamping and fixing mechanism is connected to the interior of the rotating ring; the positioning block in the present invention returns to the corresponding storage shell through the action of the unfolding lifting mechanism, which is conducive to the storage of the positioning block and the rotating ring, and by grasping the pull ring, the two closed storage shells can be conveniently carried and transported, thereby improving the storage effect and portability of the equipment and reducing the preparation time consumed for installation and disassembly.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline welding assistance, and in particular to a welding positioning device for a water supply and water delivery pipeline. Background Art

[0002] During the processing and installation of water supply and water delivery pipelines, it is necessary to weld the water pipes according to actual requirements to meet the needs of extending the water supply pipeline. When welding the water supply and water delivery pipelines, it is usually necessary to contact and position the two water supply and water delivery pipelines to be welded, and weld and fix the contact position.

[0003] The prior art discloses some patent documents related to the field of pipeline welding technology. A Chinese invention patent with publication number CN116275857B announces a portable pipeline welding positioning device and a welding positioning method, which relate to the field of pipeline welding technology. The portable pipeline welding positioning device and the welding positioning method include a clamping portion, which includes at least one clamping assembly. When the number of the clamping assemblies is greater than or equal to two, a plurality of the clamping assemblies are connected in sequence. The clamping assembly includes two clamping members, which are spaced apart and connected along the axial direction of the pipeline.

[0004] In the prior art, when positioning a pipeline, a clamp is usually used to clamp the pipeline and the clamp is assembled and disassembled for easy carrying. When positioning a water supply pipeline, after the clamp is clamped and positioned, the position of the pipeline is difficult to adjust, thereby affecting the comprehensive welding of the contact position of the water supply pipeline. The installation and disassembly of the clamp will also increase the preparation time before and after welding, and is not conducive to the storage of the clamp. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a water supply and water delivery pipeline welding positioning device.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a water supply and water delivery pipeline welding positioning device, comprising two storage shells, hinges are installed at the adjacent ends of the two storage shells, and pull rings are fixedly connected to the ends of the two storage shells that are away from each other, and positioning blocks are arranged on the tops of the two storage shells, and connecting holes are opened inside the positioning blocks, and a rotating ring is rotatably connected inside the connecting holes, and a clamping and fixing mechanism is connected inside the rotating ring;

[0007] A closed positioning mechanism is connected between the two storage shells, and an unfolding and lifting mechanism is connected between the positioning block and the corresponding storage shell. When the two storage shells are unfolded along the hinge of the hinge and are parallel to each other, the unfolding and lifting mechanism drives the positioning block to move outward from the inside of the corresponding storage shell.

[0008] Preferably, the unfolding and lifting mechanism includes two movable plates and two sliders, the two movable plates are rotatably connected to the two sides of the positioning block respectively, the two sliders are respectively arranged on the two sides inside the storage shell, one end of the movable plate is rotatably connected to the top of the corresponding slider, two first limit pins are slidably inserted on the sliders, the first limit pins are fixedly connected to the inside of the storage shell, a first spring is sleeved on the first limit pin, and the first spring is fixedly connected between the storage shell and the corresponding slider.

[0009] Preferably, each of the adjacent ends of the two storage shells is provided with a movable groove, and the movable grooves are respectively connected with the corresponding interior of the storage shells, and the two movable grooves are staggered. Each of the two storage shells is provided with an arc-shaped retaining block, and the arc-shaped ends of the arc-shaped retaining block respectively extend along the corresponding movable grooves to the outside of the storage shells, and one side of the arc-shaped retaining block is fixedly connected to a mounting plate, and two second limit pins are slidably inserted on the mounting plate, and the second limit pins are fixedly connected to the corresponding interior of the storage shells, and a second spring is sleeved on the second limit pin, and the second spring is fixedly connected between the corresponding mounting plate and one end of the second limit pin.

[0010] Preferably, a fixing block is provided inside one of the storage shells, two third limit pins are slidably inserted on the fixing block, a third spring is sleeved on the third limit pin, the third spring is fixedly connected between the fixing block and one end of the corresponding third limit pin, a positioning strip is fixedly connected to one end of the fixing block, one end of the positioning strip passes through the corresponding storage shell and extends to the outside of the storage shell, a positioning groove is provided at one end of the other storage shell, and one end of the positioning strip is located inside the positioning groove.

[0011] Preferably, the clamping and fixing mechanism includes two mounting rings, and the two mounting rings are respectively fixedly connected at one adjacent end inside the two rotating rings, one end of the mounting ring is slidably connected to a plurality of clamping strips along the circumferential direction, one end of each clamping strip is fixedly connected to a circular pin, and the ends of the two rotating rings away from each other are threadedly connected to a connecting ring, and one end of the connecting ring close to the circular pin is provided with a plurality of guide grooves along the circumferential direction, and one end of the circular pin is respectively located inside the corresponding guide groove.

[0012] Preferably, a sliding groove is provided at one adjacent end of the top of the two rotating rings, and an arc strip is slidably connected inside the sliding groove. The tops of the two arc strips are fixedly connected to limiting stop strips, and limiting grooves are provided at the upper and lower parts of the two connecting holes, and the limiting stop strips are located in the corresponding upper limiting grooves.

[0013] Preferably, one end of one of the arc-shaped strips is fixedly connected with a positioning pin, and one end of the other arc-shaped strip is provided with a positioning hole, and the positioning pin corresponds to the positioning hole.

[0014] Preferably, the closed positioning mechanism includes two wedge-shaped blocks and two snap-in strips, the two wedge-shaped blocks are arranged on one of the storage shells, and the two snap-in strips are fixedly connected to the other storage shell, the positions of the wedge-shaped blocks and the snap-in strips are far away from each other and are respectively located at one end of the two storage shells far away from each other, two fourth limit pins are fixedly connected to one side of the wedge-shaped block, and a connecting plate is slidably inserted on two adjacent fourth limit pins, and the connecting plates are fixedly connected to the corresponding storage shells, and a fourth spring is sleeved on the fourth limit pin, and the fourth spring is fixedly connected between the corresponding connecting plate and the wedge-shaped block.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Take out the welded water supply and water delivery pipeline along the axial direction inside the rotating ring, and rotate the rotating ring inside the connecting hole to make the water supply and water delivery pipeline rotate, so as to adjust the welding position of the water supply and water delivery pipeline, improve the flexibility during welding and the welding effect of the water supply and water delivery pipeline, and after welding, close the two storage shells along the hinge of the hinge, and position the two storage shells after closing through the closing positioning mechanism. During the closing process of the storage shell, the positioning block returns to the corresponding storage shell through the action of the unfolding lifting mechanism, which is conducive to the storage of the positioning block and the rotating ring, and by grasping the pull ring, it is convenient to carry the two closed storage shells, improve the storage effect and portability of the equipment, and reduce the preparation time consumed for installation and disassembly.

[0017] 2. Move toward the inside of the corresponding storage shell through the effect of contact extrusion. During the process of the positioning block moving toward the inside of the storage shell, the movable plates on both sides of the positioning block rotate along the rotating connection, and the rotating connection of the movable plate and the top of the slider rotate synchronously, and squeeze the slider to move along the sliding insertion of the first limit pin, thereby squeezing the first spring to produce compression deformation. When the two storage shells are unfolded along the hinge of the hinge, the first spring stretches through elastic action when the positioning block loses its squeezing effect, thereby squeezing the corresponding slider to move in the opposite direction, so that the positioning block moves toward the outside of the corresponding storage shell.

[0018] 3. One end of the arc-surface block moves to between the interior of the storage shell and the positioning block, and supports the positioning block to prevent the positioning block from elastically moving downward under the stress of welding, thereby improving the stability during welding. When the two storage shells are closed along the hinge of the hinge, the arc-surface ends of the two arc-surface blocks first lose their squeezing effect, and move in the opposite direction along the movable groove under the elastic extension of the second spring, so that one end of the arc-surface block is detached from the interior of the storage shell and between the positioning block, preventing the arc-surface block from blocking the positioning block from moving into the interior of the storage shell, thereby ensuring that the positioning block can smoothly enter the interior of the storage shell for storage.

[0019] 4. When the two arc-shaped bars move to the maximum range along the sliding connection of the sliding groove, one end of the two arc-shaped bars contact each other, and the limit stop bar moves completely to the outside of the limit groove, thereby releasing the rotation restriction of the rotating ring inside the connecting hole, so that the two rotating rings drive the water supply and water delivery pipelines to rotate 180 degrees, drive the arc-shaped bars away from each other, and make the limit stop bar on the surface of the arc-shaped bar move to the limit groove below the corresponding connecting hole, so that the two water supply and water delivery pipelines are repositioned after rotating 180 degrees, which is conducive to flipping the lower surface of the contact position of the two water supply and water delivery pipelines and then welding, improving the flexibility of welding, and limiting the rotation during welding to ensure stability during welding.

[0020] 5. The two rotating rings are made to rotate synchronously by the clamping positioning between the two arc-shaped bars, ensuring that the two water supply and water delivery pipes always rotate synchronously after local welding, preventing relative rotation between the two water supply and water delivery pipes, reducing the desoldering caused by misoperation between the water supply and water delivery pipes, and ensuring the welding effect of the water supply and water delivery pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention in an expanded state;

[0022] Figure 2 For the present invention Figure 1 A schematic diagram of the structure enlargement at point A;

[0023] Figure 3For the present invention Figure 1 A schematic diagram of the structure at B in FIG.

[0024] Figure 4 It is a schematic diagram of the closed state structure of the present invention;

[0025] Figure 5 For the present invention Figure 4 A schematic diagram of the structure at position C in FIG.

[0026] Figure 6 It is a cross-sectional schematic diagram of the matching structure of the positioning block, the rotating ring and the arc strip of the present invention;

[0027] Figure 7 It is a schematic diagram of the matching structure of the rotating ring and the arc strip of the present invention (the rotating ring is cut);

[0028] Figure 8 It is a schematic diagram of the matching structure of the mounting ring, the clamping strip and the connecting ring of the present invention.

[0029] In the figure: 1, storage shell; 2, hinge; 3, pull ring; 4, positioning block; 5, connecting hole; 6, rotating ring; 7, movable plate; 8, slider; 9, first limit pin; 10, first spring; 11, movable groove; 12, arc surface block; 13, mounting plate; 14, second limit pin; 15, second spring; 16, fixed block; 17, third limit pin; 18, third spring; 19, positioning strip; 20, positioning groove; 21, mounting ring; 22, clamping strip; 23, round pin; 24, connecting ring; 25, guide groove; 26, sliding groove; 27, arc strip; 28, limit stop strip; 29, limit groove; 30, positioning pin; 31, positioning hole; 32, wedge-shaped block; 33, clamping strip; 34, fourth limit pin; 35, connecting plate; 36, fourth spring. DETAILED DESCRIPTION

[0030] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0031] like Figures 1 to 8 A water supply and water delivery pipeline welding positioning device shown in the figure comprises two receiving shells 1, hinges 2 are installed at adjacent ends of the two receiving shells 1, pull rings 3 are fixedly connected at ends of the two receiving shells 1 away from each other, positioning blocks 4 are arranged on the tops of the two receiving shells 1, connecting holes 5 are penetrated in the positioning blocks 4, a rotating ring 6 is rotatably connected in the connecting hole 5, and a clamping and fixing mechanism is connected in the rotating ring 6;

[0032] A closing positioning mechanism is connected between the two storage shells 1, and an unfolding and lifting mechanism is connected between the positioning block 4 and the corresponding storage shell 1. When the two storage shells 1 are unfolded along the hinged joint of the hinge 2 and are parallel to each other, the unfolding and lifting mechanism drives the positioning block 4 to move outward from the inside of the corresponding storage shell 1; when working, the prior art usually uses a clamping piece to clamp and position the pipeline when positioning the pipeline, and uses the assembly and disassembly of the clamping piece to facilitate carrying. When positioning the water supply and water delivery pipeline, after the clamping piece clamps and positions the pipeline, the position of the pipeline is difficult to adjust, thereby affecting The comprehensive welding of the contact position of the water supply and water delivery pipes will be affected, and the installation and disassembly of the clamps will also increase the preparation time before and after welding, and it is not conducive to the storage of the clamps. The technical solution can solve the above problems. The specific working method is as follows: two positioning blocks 4 are stored and placed by two storage shells 1. When the two storage shells 1 are unfolded along the hinges of the hinges 2 and are parallel to each other, the two positioning blocks 4 are moved outward from the corresponding storage shells 1 and located above the storage shells 1 through the action of the unfolding lifting mechanism. Then, the two water supply and water delivery pipes to be welded are placed from the two rotating rings 6 to the opposite sides. The ends away from each other are inserted into the corresponding rotating ring 6, and one end of the two water supply and water delivery pipes are made to contact each other, and then the water supply and water delivery pipes are clamped and positioned inside the corresponding rotating ring 6 by the action of the clamping and fixing mechanism, and then the ends of the two water supply and water delivery pipes that are in contact with each other are welded. After the welding is completed, the clamping and positioning of the water supply and water delivery pipes by the clamping and fixing mechanism are released, and the welded water supply and water delivery pipes are taken out along the axial direction of the rotating ring 6. The water supply and water delivery pipes can be rotated by rotating the rotating ring 6 inside the connecting hole 5, thereby adjusting the welding position of the water supply and water delivery pipes and improving the welding quality. The flexibility of the storage shells 1 and the welding effect of the water supply and water delivery pipelines are improved. After the welding is completed, the two storage shells 1 are closed along the hinges of the hinges 2, and the two storage shells 1 are closed and positioned through the closing positioning mechanism. During the closing process of the storage shells 1, the positioning blocks 4 return to the corresponding storage shells 1 through the action of the unfolding lifting mechanism, which is conducive to the storage of the positioning blocks 4 and the rotating ring 6, and by grasping the pull ring 3, the two closed storage shells 1 are convenient to carry and carry, thereby improving the storage effect and portability of the equipment and reducing the preparation time consumed for installation and disassembly.

[0033] As a further embodiment of the present invention, the unfolding and lifting mechanism includes two movable plates 7 and two sliders 8, the two movable plates 7 are rotatably connected to the two sides of the positioning block 4, the two sliders 8 are respectively arranged on the two sides inside the storage shell 1, one end of the movable plate 7 is rotatably connected to the top of the corresponding slider 8, and two first limit pins 9 are slidably inserted on the slider 8, the first limit pins 9 are fixedly connected to the inside of the storage shell 1, and the first limit pins 9 are sleeved with a first spring 10, which is fixedly connected between the storage shell 1 and the corresponding slider 8; when working, when the two storage shells 1 are closed along the hinge of the hinge 2, the two positioning blocks 4 are generated in the process of approaching each other. When the two storage shells 1 are unfolded along the hinged joint of the hinge 2, the first spring 10 stretches through the elastic action when the positioning block 4 loses its squeezing action, thereby squeezing the corresponding slider 8 to move in the opposite direction, and causing the positioning block 4 to move toward the outside of the corresponding storage shell 1.

[0034] As a further implementation scheme of the present invention, an active groove 11 is provided at one adjacent end of the two storage shells 1, and the active grooves 11 are respectively connected to the corresponding interior of the storage shells 1, and the two active grooves 11 are staggered. The interior of the two storage shells 1 is provided with an arc-shaped retaining block 12, and the arc-shaped ends of the arc-shaped retaining block 12 extend to the outside of the storage shells 1 along the corresponding active grooves 11 respectively, and one side of the arc-shaped retaining block 12 is fixedly connected to a mounting plate 13, and two second limit pins 14 are slidably inserted on the mounting plate 13. The second limit pins 14 are fixedly connected to the corresponding interior of the storage shells 1, and a second spring 15 is sleeved on the second limit pin 14, and the second spring 15 is fixedly connected between the corresponding mounting plate 13 and one end of the second limit pin 14; during operation, when the two storage shells 1 are unfolded along the hinge of the hinge 2, the two positioning blocks 4 move to the outside of the corresponding storage shells 1 after losing mutual contact and extrusion, and before the two storage shells 1 are about to unfold to a state parallel to each other, the arcs of the two arc-shaped retaining blocks 12 The surface end is squeezed by one end of the relative storage shell 1, thereby moving along the movable groove 11 into the corresponding storage shell 1, and driving the mounting plate 13 to move along the sliding insertion point of the second limit pin 14, thereby squeezing the second spring 15 to produce compression deformation, so that when the two storage shells 1 are unfolded to a state parallel to each other, one end of the arc-shaped block 12 moves to between the interior of the storage shell 1 and the positioning block 4, and supports the positioning block 4 to prevent the positioning block 4 from elastically moving downward under the condition of welding force, thereby improving the stability during the welding process, and when the two storage shells 1 are closed along the hinge of the hinge 2, the arc-shaped ends of the two arc-shaped blocks 12 first lose the squeezing effect, and move in the opposite direction along the movable groove 11 under the elastic extension of the second spring 15, thereby causing one end of the arc-shaped block 12 to detach from between the interior of the storage shell 1 and the positioning block 4, preventing the arc-shaped block 12 from blocking the movement of the positioning block 4 into the interior of the storage shell 1, and ensuring that the positioning block 4 can smoothly enter the interior of the storage shell 1 for storage.

[0035] As a further implementation scheme of the present invention, a fixing block 16 is provided inside one of the storage shells 1, two third limit pins 17 are slidably inserted on the fixing block 16, a third spring 18 is sleeved on the third limit pin 17, the third spring 18 is fixedly connected between the fixing block 16 and one end of the corresponding third limit pin 17, one end of the fixing block 16 is fixedly connected to a positioning strip 19, one end of the positioning strip 19 passes through the corresponding storage shell 1 and extends to the outside of the storage shell 1, a positioning groove 20 is provided at one end of the other storage shell 1, one end of the positioning strip 19 is located inside the positioning groove 20; during operation, by pulling the fixing block 16, the fixing block 16 moves along the sliding insertion of the third limit pin 17 and squeezes the third spring 18 to produce compression deformation. , so that the fixing block 16 drives one end of the positioning strip 19 to disengage from the positioning groove 20, the two storage shells 1 can be closed along the hinge of the hinge 2. When the two storage shells 1 are unfolded along the hinge of the hinge 2, one end of the positioning strip 19 contacts and squeezes the opposite end of the storage shell 1 during the unfolding of the two storage shells 1, and drives the fixing block 16 to move and make way, thereby causing the third spring 18 to produce compression deformation. When the two storage shells 1 are unfolded to a state parallel to each other, one end of the positioning strip 19 is located at the positioning groove 20, and moves into the positioning groove 20 under the elastic extension action of the third spring 18, thereby positioning the state of the two storage shells 1 being unfolded in parallel, thereby improving the stability of the state of the storage shell 1 during the welding process.

[0036] As a further embodiment of the present invention, the clamping and fixing mechanism includes two mounting rings 21, and the two mounting rings 21 are respectively fixedly connected at one end adjacent to the inside of the two rotating rings 6, one end of the mounting ring 21 is slidably connected to a plurality of clamping strips 22 along the circumferential direction, and one end of the clamping strips 22 is fixedly connected to a circular pin 23, and the ends of the two rotating rings 6 that are away from each other are threadedly connected to a connecting ring 24, and the end of the connecting ring 24 close to the circular pin 23 is provided with a plurality of guide grooves 25 along the circumferential direction, and one end of the circular pin 23 is respectively located in the corresponding guide groove 25; when working, the water supply and water delivery pipeline is moved along the connecting ring 24 The connecting ring 24 is moved inside and extends from between the multiple connecting rings 24 toward the mounting ring 21. By rotating the connecting ring 24, the connecting ring 24 is rotated along the threaded connection toward the inside of the rotating ring 6. During the rotation of the connecting ring 24, the circular pin 23 is guided by the guide groove 25, so that the circular pin 23 drives the corresponding clamping strip 22 to move along the sliding connection of the mounting ring 21 toward the axis of the rotating ring 6, so that the multiple clamping strips 22 are in contact with the surface of the water supply and water delivery pipeline, and the water supply and water delivery pipeline is clamped and positioned in the center, so that the water supply and water delivery pipeline and the rotating ring 6 are coaxially positioned.

[0037] As a further implementation scheme of the present invention, a sliding groove 26 is provided at one adjacent end of the top of the two rotating rings 6, and an arc-shaped bar 27 is slidably connected inside the sliding groove 26. The tops of the two arc-shaped bars 27 are fixedly connected to limit stop bars 28. Limit grooves 29 are provided at the upper and lower parts of the two connecting holes 5, and the limit stop bars 28 are located in the corresponding limit grooves 29 above; when working, the limit stop bars 28 are located in the corresponding limit grooves 29, so that the rotation of the rotating ring 6 is restricted inside the connecting hole 5, thereby improving the stability of the water supply and water delivery pipeline during the clamping and positioning process. After welding the upper surfaces of the contact positions of the two water supply and water delivery pipelines, the two arc-shaped bars 27 are pulled outward along the corresponding sliding grooves 26, so that the two arc-shaped bars 27 are close to each other, and the arc-shaped bars 27 drive the limit stop bars at the top. 28 moves along the limiting groove 29. When the two arc-shaped bars 27 move to the maximum range along the sliding connection of the sliding groove 26, one ends of the two arc-shaped bars 27 contact each other, and the limiting stopper 28 completely moves to the outside of the limiting groove 29, thereby releasing the rotation restriction of the rotating ring 6 inside the connecting hole 5, so that the two rotating rings 6 drive the water supply and water delivery pipelines to rotate 180 degrees, drive the arc-shaped bars 27 away from each other, and make the limiting stopper 28 on the surface of the arc-shaped bar 27 move to the limiting groove 29 below the corresponding connecting hole 5, so that the two water supply and water delivery pipelines are repositioned after rotating 180 degrees, which is conducive to flipping the lower surface of the contact position of the two water supply and water delivery pipelines for welding, improving the flexibility of welding, and limiting the rotation during welding to ensure stability during welding.

[0038] As a further implementation scheme of the present invention, one end of one arc-shaped bar 27 is fixedly connected with a positioning pin 30, and one end of the other arc-shaped bar 27 is provided with a positioning hole 31, and the positioning pin 30 corresponds to the positioning hole 31; during operation, when the two arc-shaped bars 27 are close to and in contact with each other, the positioning pin 30 moves to the inside of the positioning hole 31, thereby generating a snap-fit ​​positioning between the two arc-shaped bars 27, while releasing the rotation restriction of the rotating ring 6 inside the connecting hole 5, and at the same time, the two rotating rings 6 are synchronously rotated through the snap-fit ​​positioning between the two arc-shaped bars 27, ensuring that the two water supply and water delivery pipes always rotate synchronously after local welding, preventing relative rotation between the two water supply and water delivery pipes, reducing the desoldering caused by misoperation between the water supply and water delivery pipes, and ensuring the welding effect of the water supply and water delivery pipes.

[0039] As a further implementation scheme of the present invention, the closed positioning mechanism includes two wedge-shaped blocks 32 and two clamping strips 33, the two wedge-shaped blocks 32 are arranged on one of the storage shells 1, and the two clamping strips 33 are fixedly connected to the other storage shell 1, the positions of the wedge-shaped blocks 32 and the clamping strips 33 are far away from each other and are respectively located at one end of the two storage shells 1 far away from each other, one side of the wedge-shaped blocks 32 is fixedly connected to two fourth limit pins 34, and two adjacent fourth limit pins 34 are slidably inserted with connecting plates 35, and the connecting plates 35 are fixedly connected to the corresponding storage shells 1, and the fourth limit pins 34 are sleeved with fourth springs 36, and the fourth springs 36 are fixedly connected between the corresponding connecting plates 35 and the wedge blocks 32 When the two storage shells 1 are closed along the hinged joint of the hinge 2, the snap-in strip 33 and the wedge-shaped block 32 move synchronously with the corresponding storage shells 1 and approach each other. The snap-in strip 33 contacts and squeezes the arc surface of the wedge-shaped block 32 during the movement, and the wedge-shaped block 32 moves to make way during the squeezing process. The wedge-shaped block 32 drives the fourth limit pin 34 to move along the sliding joint of the connecting plate 35, and squeezes the fourth spring 36 to produce compression deformation. When the two storage shells 1 are completely closed, the snap-in strip 33 moves to one side of the inside of the wedge-shaped block 32, and under the elastic extension action of the fourth spring 36, the wedge-shaped block 32 is moved close to the snap-in strip 33, thereby positioning the two storage shells 1 after closing.

[0040] Working principle of the present invention:

[0041] The two positioning blocks 4 are stored and placed by the two storage shells 1. When the two storage shells 1 are unfolded along the hinges of the hinges 2 and are parallel to each other, the two positioning blocks 4 are moved outward from the corresponding storage shells 1 and are located above the storage shells 1 through the action of the unfolding lifting mechanism. Then, the two water supply and water delivery pipes to be welded are inserted into the corresponding rotating ring 6 from the ends of the two rotating rings 6 that are away from each other, and one end of the two water supply and water delivery pipes is made to contact each other. Then, the water supply and water delivery pipes are clamped and positioned inside the corresponding rotating ring 6 through the action of the clamping and fixing mechanism. Then, the ends of the two water supply and water delivery pipes that are in contact with each other are welded. After the welding is completed, the clamping and positioning of the water supply and water delivery pipes by the clamping and fixing mechanism is released, and the welded water supply and water delivery pipes are placed along the rotating ring 6 is taken out axially, and the water supply and water delivery pipeline can be rotated by rotating the rotating ring 6 in the connecting hole 5, so as to adjust the welding position of the water supply and water delivery pipeline, improve the flexibility during welding and the welding effect of the water supply and water delivery pipeline, and after welding, the two storage shells 1 are closed along the hinge of the hinge 2, and the two storage shells 1 are closed and positioned by the closing positioning mechanism. During the closing process of the storage shell 1, the positioning block 4 returns to the corresponding storage shell 1 through the action of the unfolding lifting mechanism, which is conducive to the storage of the positioning block 4 and the rotating ring 6, and by grasping the pull ring 3, the two closed storage shells 1 are convenient to carry and carry, thereby improving the storage effect and portability of the equipment and reducing the preparation time consumed for installation and disassembly.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected, and the scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A water supply and water delivery pipeline welding positioning device, comprising two receiving shells (1), characterized in that: A hinge (2) is installed at one end adjacent to the two storage shells (1); a pull ring (3) is fixedly connected to one end of the two storage shells (1) away from each other; a positioning block (4) is arranged above the two storage shells (1); a connecting hole (5) is penetrated through the inside of the positioning block (4); a rotating ring (6) is rotatably connected to the inside of the connecting hole (5); and a clamping and fixing mechanism is connected to the inside of the rotating ring (6); A closing positioning mechanism is connected between the two storage shells (1), and an unfolding and lifting mechanism is connected between the positioning block (4) and the corresponding storage shell (1); when the two storage shells (1) are unfolded along the hinged part of the hinge (2) and are parallel to each other, the unfolding and lifting mechanism drives the positioning block (4) to move outward from the inside of the corresponding storage shell (1); A movable groove (11) is provided at one adjacent end of the two storage shells (1), and the movable grooves (11) are respectively connected to the inside of the corresponding storage shells (1). The two movable grooves (11) are arranged in a staggered manner. An arc-shaped stop block (12) is provided inside the two storage shells (1). The arc-shaped ends of the arc-shaped stop blocks (12) extend to the outside of the storage shells (1) along the corresponding movable grooves (11). One side of the arc-shaped stop block (12) is fixedly connected to a mounting plate (13). Two second limit pins (14) are slidably inserted on the mounting plate (13). The second limit pins (14) are fixedly connected to the inside of the corresponding storage shells (1). A second spring (15) is sleeved on the second limit pin (14), and the second spring (15) is fixedly connected between the corresponding mounting plate (13) and one end of the second limit pin (14). A fixing block (16) is arranged inside one of the storage shells (1), two third limit pins (17) are slidably inserted on the fixing block (16), a third spring (18) is sleeved on the third limit pin (17), the third spring (18) is fixedly connected between the fixing block (16) and one end of the corresponding third limit pin (17), one end of the fixing block (16) is fixedly connected to a positioning strip (19), one end of the positioning strip (19) passes through the corresponding storage shell (1) and extends to the outside of the storage shell (1), and a positioning groove (20) is opened at one end of the other storage shell (1), one end of the positioning strip (19) is located inside the positioning groove (20).

2. A water supply and water delivery pipeline welding positioning device according to claim 1, characterized in that: The unfolding and lifting mechanism comprises two movable plates (7) and two sliders (8); the two movable plates (7) are rotatably connected to the two sides of the positioning block (4), respectively; the two sliders (8) are respectively arranged on the two sides inside the storage shell (1); one end of the movable plate (7) is rotatably connected to the top of the corresponding slider (8); two first limit pins (9) are slidably inserted on the sliders (8); the first limit pins (9) are fixedly connected to the inside of the storage shell (1); a first spring (10) is sleeved on the first limit pin (9); the first spring (10) is fixedly connected between the storage shell (1) and the corresponding slider (8).

3. A water supply and water delivery pipeline welding positioning device according to claim 1, characterized in that: The clamping and fixing mechanism comprises two mounting rings (21), the two mounting rings (21) being fixedly connected to adjacent ends of the two rotating rings (6), one end of the mounting ring (21) being slidably connected to a plurality of clamping strips (22) along the circumferential direction, one end of each clamping strip (22) being fixedly connected to a circular pin (23), and one end of each rotating ring (6) being away from each other being threadedly connected to a connecting ring (24), one end of each connecting ring (24) being close to the circular pin (23) being provided with a plurality of guide grooves (25) along the circumferential direction, one end of each circular pin (23) being located inside the corresponding guide groove (25).

4. A water supply and water delivery pipeline welding positioning device according to claim 3, characterized in that: A sliding groove (26) is provided at one adjacent end of the top of the two rotating rings (6), an arc strip (27) is slidably connected inside the sliding groove (26), and the tops of the two arc strips (27) are fixedly connected to limit stop strips (28). Limit grooves (29) are provided at the upper and lower parts of the two connecting holes (5), and the limit stop strips (28) are located in the corresponding upper limit grooves (29).

5. A water supply and water delivery pipeline welding positioning device according to claim 4, characterized in that: One end of one of the arc-shaped strips (27) is fixedly connected to a positioning pin (30), and one end of the other arc-shaped strip (27) is provided with a positioning hole (31), and the positioning pin (30) corresponds to the positioning hole (31).

6. A water supply and water delivery pipeline welding positioning device according to claim 1, characterized in that: The closed positioning mechanism comprises two wedge-shaped clamping blocks (32) and two clamping strips (33); the two wedge-shaped clamping blocks (32) are arranged on one of the storage shells (1); the two clamping strips (33) are fixedly connected to the other storage shell (1); the positions of the wedge-shaped clamping blocks (32) and the clamping strips (33) are far away from each other and are respectively located at ends of the two storage shells (1) that are far away from each other; two fourth limiting pins (34) are fixedly connected to one side of the wedge-shaped clamping block (32); two adjacent fourth limiting pins (34) are slidably connected with a connecting plate (35) on each of the two adjacent fourth limiting pins (34); the connecting plates (35) are fixedly connected to the corresponding storage shells (1); the fourth limiting pins (34) are sleeved with a fourth spring (36); the fourth spring (36) is fixedly connected between the corresponding connecting plate (35) and the wedge-shaped clamping block (32).

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