Annular pressure type connection and installation construction equipment and method for thin-wall stainless steel water supply pipe

Abstract

The invention discloses thin-wall stainless steel water supply pipe ring pressing type connecting and installing construction equipment and method, and relates to the technical field of pipe fitting connection. The method comprises the following steps that the end of a pipe and an external cylindrical sealing material are inserted into a pipe fitting, and air pressure borne by the end face of a sliding block is limited; the on-off valve is closed to limit the initial air pressure in the air cylinder and the air cylinder, the direction of the annular pressure head is corrected, the air pump is started, and after the air pressure reaches an annular pressure air pressure threshold value, annular pressure work of the water pipe is completed. Deformation of the water pipe under the action of unbalanced force is avoided, the annular pressure effect is improved, annular pressure errors caused by abrasion loss of the annular pressure head are made up, the annular pressure precision is improved, the trouble of frequent replacement of the clamp seat and the annular pressure head is solved, the convenience of annular pressure work is improved, the directions of the pipe, the pipe fitting and the annular pressure head can be corrected and limited, and the effectiveness of the annular pressure work is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe connection, in particular to a ring-pressed connection and installation construction equipment and method for a thin-walled stainless steel water supply pipe. Background Art

[0002] With technological advancement and socio-economic development, stainless steel water supply pipes are increasingly serving people's production and life. The ring pressure connection process of thin-walled stainless steel pipes is a new stainless steel pipe connection process that has emerged in recent years. A Chinese patent discloses an underwater steel pipe installation auxiliary device with application number: CN202420838932.2. The device is equipped with a pressure-resistant elastic block, a spring and other structures to avoid the problem of pipe rupture.

[0003] However, the current installation and construction method requires frequent replacement of the ring pressure head to adapt to the ring pressure work of water pipes of different specifications and sizes when connecting thin-walled stainless steel water supply pipes. The ring pressure applied to the pipe fittings and pipes in different directions is also prone to differences due to different force walls, resulting in deformation and damage of the pipe body due to uneven force. In addition, the wear error of the ring pressure head and the easy misalignment of the pipe fittings and pipes can easily cause invalid ring pressure. Summary of the Invention

[0004] The present invention provides a thin-walled stainless steel water supply pipe ring-pressing connection and installation construction equipment and method, which can effectively solve the problem proposed in the above background technology that the current installation and construction method needs to frequently replace the ring pressure head to adapt to the ring pressure work of water pipes of different specifications and sizes when performing ring-pressing connection on thin-walled stainless steel water supply pipes. The ring pressure applied to the pipe fittings and pipes in different directions is also prone to differences due to different force walls, so that the pipe body is deformed and damaged due to uneven force. In addition, the wear error of the ring pressure head and the easy misalignment of the pipe fittings and pipes can easily cause invalid ring pressure.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a thin-walled stainless steel water supply pipe ring pressure connection and installation construction equipment, including pipes;

[0006] A mounting seat is provided on one side of the pipe, and a support and compensation mechanism is installed on one end surface of the mounting seat, and the support and compensation mechanism includes a clamp seat;

[0007] A clamp seat is installed on one end surface of the mounting seat, and supports are slidably installed on both sides of the clamp seat. A plurality of cylinders are installed at equal angles along the circumferential direction on the inner side of the clamp seat. A ring pressure head is slidably sleeved on one end of the cylinder, and a push plate is slidably installed inside the cylinder. A push rod is installed in the middle of the side end of the push plate, and a guide tube is connected to the middle of the other end of the cylinder;

[0008] The inner side of the support is symmetrically installed with a clamp arm, the arc surface of the clamp arm is embedded with an arc plate for sliding installation, the outer curved surface of the arc plate is symmetrically embedded with an air cylinder on both sides, the middle part of one end of the air cylinder is connected with a tube body, the other end of the air cylinder is embedded with a push rod for sliding installation, one end of the push rod is installed with a top plate, and the other end of the push rod is installed with a limiting head, guide cavities are opened inside the clamp seat and the support, and the bottom of the side end surfaces of the clamp seat and the support are connected with connecting pipes.

[0009] According to the above technical solution, a cylinder body is installed in the middle of the top of the mounting seat, a plug plate is symmetrically and slidingly installed inside the cylinder body, a pull rod is installed in the middle of the side end face of the plug plate, a box body is installed at the bottom of the mounting seat, a check valve is symmetrically installed on the edge of the side end face of the box body, a partition plate is symmetrically installed inside the box body at the inner side of the check valve, an axis tube is installed in the middle of the side end face of the partition plate, a slider is symmetrically and slidingly installed on the outer side of the axis tube, a through groove is provided in the middle of the outer curved surface of the axis tube, an air supply port is provided in the middle of the top of the box body, and a pressure relief port is provided at the position of the slider on the side end face of the box body.

[0010] According to the above technical solution, the ends of the pipe and the pipe fitting are matched, and the pipe and the pipe fitting are both clamped and installed on the inner side of the ring pressure head. Limit rods are installed at the corners of the end faces on both sides of the clamp seat, and the support is slidably connected to the clamp seat through the limit rods. Ear plates are symmetrically installed on the top of the clamp seat, and a bolt is installed in the middle of the side end face of one ear plate through a thread, and a pressure relief valve is installed on one side of the top of the guide cavity.

[0011] According to the above technical solution, the sliding distance of the push rod is the same as the sliding distance of the push rod, the limit head is an elastic part, the arc plate can deflect at an angle greater than the angle between two adjacent cylinders, the guide cavity in the clamp seat is connected to the cylinder through a conduit, the guide cavity in the support is connected to the air cylinder through a tube body, and the guide cavity is connected to the connecting pipe.

[0012] According to the above technical solution, the space inside the box body located outside the two partition plates is connected to the connecting pipes on the two supports through check valves respectively, the space inside the box body located inside the slider is connected to the connecting pipe on the clamp seat, the two sliders are located inside the two partition plates, and the space inside the box body located inside the slider is connected to the space inside the box body located outside the two partition plates through the through groove and the shaft tube.

[0013] According to the above technical solution, a boost drive mechanism is installed on the other side of the mounting seat, and the boost drive mechanism includes a body;

[0014] An organic body is installed on the other side of the mounting seat, a diverter box is embedded and installed in the middle of one end of the body, a threaded ring is installed in the middle of the other end of the body, a pushing cavity is opened in the body near the position of the diverter box, a large round plug is slidably installed in the pushing cavity, a column rod is installed in the middle of the side end face of the large round plug, a small round plug is installed on the end of the column rod, a boosting cavity is opened in the body at the position corresponding to the small round plug, and a ring plate is installed on the side end face of the boosting cavity near the position of the threaded ring;

[0015] The ring plate and the side wall of the boost chamber form an annular groove. An air delivery valve is embedded in the edge of the side end surface of the boost chamber, and a flat tube is installed at the end of the air delivery valve. An air supply valve is embedded in the middle of the side end surface of the body, located inside the threaded ring. A sliding cavity is opened inside the body at the bottom of the boost chamber, and a slide cylinder is slidably installed inside the sliding cavity. The sliding cavity is elliptical and fits with the slide cylinder.

[0016] A bottom hole is formed on one side of the bottom of the outer curved surface of the slide, and a top hole is formed on the other side of the top of the outer curved surface of the slide;

[0017] A curved hole is provided at the top of the outer curved surface of the sliding cavity at a position corresponding to the top hole. A cannula is installed in the middle of one end of the sliding cavity. A shunt pipe is connected to the bottom end of the sliding cavity. The sum of the horizontal distance between the end of the curved hole and the end of the shunt pipe and the sliding distance of the sliding cylinder is equal to the horizontal distance between the bottom hole and the top hole.

[0018] A threaded barrel is installed in the middle of the end surface on the other side of the mounting seat, an on-off valve is installed at the bottom of the outer curved surface of the threaded barrel, and a three-way pipe is installed at the end of the on-off valve.

[0019] According to the above technical solution, a battery is embedded and installed at one end of the body at the top position of the diverter box, a switch is embedded and installed at the top edge of the body, an air pump is installed at the end of the diverter box, a filter head is installed at the end of the air pump, and the air outlet of the air pump is connected to the inner cavity of the diverter box, the air pump input end is connected to the battery through the switch, and a pressure gauge is embedded and installed at the top of the outer curved surface of the threaded barrel.

[0020] According to the above technical solution, the push chamber is directly connected to the boost chamber, and the end surface area of ​​the large round plug is larger than the end surface area of ​​the small round plug. The boost chamber is connected to the diversion box through the air supply valve and the flat tube. The air supply valve is connected to the boost chamber, and both the air supply valve and the air supply valve are one-way valves. The space inside the box body between the partition plate and the slider is connected to the on-off valve through a three-way pipe.

[0021] According to the above technical solution, the boost chamber is connected to the sliding chamber through the annular groove, the sliding chamber is connected to the diversion box through the diversion tube, the space inside the push chamber and the boost chamber located between the large round plug and the small round plug is connected to the sliding chamber through the curved hole, the insert tube is sealed and slidably connected to the large round plug, and the space inside the push chamber located between the large round plug and the diversion box is connected to the sliding chamber through the insert tube.

[0022] According to the above technical solution, the construction steps are as follows:

[0023] S1. Put the outer cylindrical sealing material on the pipe, and insert the end of the pipe together with the outer cylindrical sealing material into the pipe fitting;

[0024] S2. Open the on-off valve and start the air pump. According to the pressure indication, the air pressure on the end face of the slider is limited. This air pressure is the ring pressure threshold.

[0025] S3. Close the on-off valve and the air pump, open the pressure relief valve on the support, and limit the initial air pressure inside the cylinder and the air cylinder;

[0026] S4. Put the clamp and support on the outside of the water pipe and adjust the position of the ring pressure head;

[0027] S5. Start the air pump, and each ring pressure head squeezes the pipe fittings. After the air pressure reaches the ring pressure threshold, shut down the air pump to complete the initial ring pressure of the water pipe;

[0028] S6. Open the pressure relief valve on the clamp seat, rotate the clamp seat and the support, and deflect the ring pressure head relative to the pipe. After the arc plate abuts against the clamp arm, start the air pump again to perform the second stage of ring pressure compensation;

[0029] S7. After the air pressure reaches the ring pressure threshold, turn off the air pump, remove the clamp and support, and complete the ring pressure work of the water pipe.

[0030] Compared with the prior art, the present invention has the following beneficial effects: the structure of the present invention is scientific and reasonable, and the use is safe and convenient;

[0031] 1. A support and compensation mechanism is provided. Through the cooperation of the clamp seat, cylinder, ring pressure head, push plate and push rod, a staged elastic ring pressure structure can be constructed. On the one hand, it can make the force on pipes and fittings more uniform during the ring pressure process, eliminate the ring pressure error caused by the difference of the ring pressure arm in different directions, greatly improve the circumferential balance of the ring pressure force, effectively avoid the deformation of the water pipe under the action of unbalanced force, and greatly improve the ring pressure effect;

[0032] On the other hand, ring pressing compensation can be performed through two-stage ring pressing, which can not only effectively make up for the ring pressing error caused by the wear and tear of the ring pressing head and improve the ring pressing accuracy, but also extend the effective service life of the ring pressing head in a variable manner. At the same time, the ring pressing head can be applied to the ring pressing work of pipes and fittings of different sizes and specifications. While expanding its scope of application, it can solve the trouble of frequent replacement of clamps and ring pressing heads, and greatly improve the convenience and efficiency of ring pressing work.

[0033] 2. An elastic limit correction structure can be constructed by cooperating with the cylinder body, pull rod, plug plate, support, clamp arm, arc plate, air cylinder, pipe body, top plate, push rod and limit head. The orientation of the pipe, pipe fitting and ring pressing head can be corrected and limited before ring pressing to ensure their relative verticality, which can fully guarantee the effectiveness of the ring pressing work. The pipe and pipe fitting can be limited and locked during the ring pressing process to fully guarantee the relative orientation stability of the pipe, pipe fitting and ring pressing head, effectively avoiding relative dislocation of the pipe and pipe fitting due to internal stress fluctuation under the action of ring pressing pressure, and greatly improving the stability and reliability of the ring pressing work.

[0034] By cooperating with the conduit, guide cavity, connecting pipe, communicating pipe, check valve, shaft pipe, pressure relief port and air delivery port, a complete airflow conveying passage can be constructed. In addition, the flow limiting and guiding function of the box body, partition plate, slider and through groove not only limits the ring pressure threshold to ensure the reliability of the ring pressure operation, but also allows the locking and fixing pressure to rise and fall synchronously with the ring pressure, thereby improving the effectiveness of the limit correction work.

[0035] 3. A boost drive mechanism is provided. Through the cooperation of the machine body, the diverter box, the push chamber, the large round plug, the column rod, the small round plug and the boost chamber, an airflow pressure enhancement structure can be formed, which can enhance the airflow pressure output by the air pump. On the one hand, it effectively reduces the load pressure of the air pump during the ring pressing process, reduces the loss of the air pump during the ring pressing process, and enables the air pump to perform the ring pressing work more sustainably and efficiently. It can also reduce the power consumption of the air pump in a variable phase, while equivalently extending the battery life, making the ring pressing work more energy-saving and environmentally friendly. At the same time, since the airflow is used as the pressure medium in the ring pressing process, while further improving the environmental friendliness of the ring pressing work, the compressibility of the gas can be fully utilized, while ensuring the effectiveness of the ring pressing, making the ring pressing work more gentle, and effectively avoiding damage to the water pipe caused by hard extrusion and collision;

[0036] On the other hand, it can cooperate with the ring plate, ring groove, air transmission valve, flat tube, air supply valve, sliding cavity, sliding cylinder, bottom hole, top hole, curved hole, diversion pipe and cannula to form a circulating boosting structure, which can realize the rapid circulation and superposition of air flow pressure, further enhance the effect of improving the output air flow pressure of the air pump, and increase the air flow pressure more quickly and efficiently. While improving the boosting efficiency and making the ring pressure work faster and more efficient, it can fully meet the ring pressure work's demand for ring pressure and ensure the effectiveness of the ring pressure pressure. Through the cooperation of the threaded ring, threaded cylinder, on-off valve and three-way pipe, a connection correction structure can be formed, which can quickly realize the connection between the mounting seat and the body, making the replacement of the ring pressure head more convenient and efficient, and can quickly and conveniently realize the limit adjustment of the ring pressure threshold, making the ring pressure work simpler and more efficient.

[0037] In summary, in the process of using this installation and construction method to carry out the ring-pressing connection installation of thin-walled stainless steel water supply pipes, it can effectively solve the trouble of frequently replacing the clamp seat and the ring pressure head when ring pressing water pipes of different sizes, and avoid the ring pressure error caused by the difference in force arms in different directions, and make up for the error caused by the wear of the ring pressure head, making the ring pressing work more efficient and accurate. At the same time, the position of pipes and fittings can be corrected and limited, the pressure medium can be circulated and pressurized, the ring pressure consumption can be reduced, energy saving and environmental protection can be improved, and the effectiveness of the ring pressing work is fully guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0039] In the attached figure:

[0040] Figure 1 This is a flow chart of the ring-pressed connection and installation construction method of the thin-walled stainless steel water supply pipe of the present invention;

[0041] Figure 2 It is a structural schematic diagram of the present invention;

[0042] Figure 3 It is a schematic diagram of the support installation structure of the present invention;

[0043] Figure 4 It is a structural schematic diagram of the support and compensation mechanism of the present invention;

[0044] Figure 5 It is a schematic diagram of the cylinder installation structure of the present invention;

[0045] Figure 6 This is a schematic diagram of the shaft tube installation structure of the present invention;

[0046] Figure 7 It is a schematic structural diagram of the boost drive mechanism of the present invention;

[0047] Figure 8 This is a schematic diagram of the large round plug installation structure of the present invention;

[0048] Numbers in the figure: 1, mounting base; 11, pipe; 12, pipe fitting;

[0049] 200, support and compensation mechanism; 201, clamp seat; 202, support; 203, cylinder; 204, ring pressure head; 205, push plate; 206, push rod; 207, guide tube; 208, clamp arm; 209, arc plate; 210, gas cylinder; 211, pipe body; 212, top plate; 213, push rod; 214, limit head; 215, guide cavity; 216, connecting pipe; 217, cylinder body; 218, pull rod; 219, plug plate; 220, connecting pipe; 221, box body; 222, check valve; 223, partition plate; 224, shaft tube; 225, slider; 226, through groove; 227, pressure relief port; 228, gas outlet;

[0050] 21. Limit rod; 22. Ear plate; 23. Bolt; 24. Pressure relief valve;

[0051] 300, boost drive mechanism; 301, body; 302, shunt box; 303, threaded ring; 304, push chamber; 305, large round plug; 306, column; 307, small round plug; 308, boost chamber; 309, ring plate; 310, ring groove; 311, air delivery valve; 312, flat tube; 313, air delivery valve; 314, sliding chamber; 315, sliding cylinder; 316, bottom hole; 317, top hole; 318, curved hole; 319, cannula; 320, shunt pipe; 321, threaded cylinder; 322, on-off valve; 323, tee pipe;

[0052] 31. Air pump; 32. Filter head; 33. Pressure gauge; 34. Battery; 35. Switch. DETAILED DESCRIPTION

[0053] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0054] Example: Figure 1 As shown, the present invention provides a technical solution, a method for ring-pressing connection and installation of thin-walled stainless steel water supply pipes, comprising the following steps:

[0055] S1. Put the outer cylindrical sealing material on the pipe 11, and insert the end of the pipe 11 together with the outer cylindrical sealing material into the pipe fitting 12;

[0056] S2. Open the on-off valve 322, start the air pump 31, and limit the air pressure on the end surface of the slider 225 according to the reading of the pressure gauge 33. This air pressure is the ring pressure threshold;

[0057] S3, close the on-off valve 322 and the air pump 31, open the pressure relief valve 24 on the support 202, and limit the initial air pressure inside the cylinder 203 and the air cylinder 210;

[0058] S4. Clamp the clamp 201 and the support 202 onto the outside of the water pipe and calibrate the position of the ring pressure head 204;

[0059] S5, start the air pump 31, each ring pressure head 204 squeezes the pipe 12, and after the air pressure reaches the ring pressure threshold, shut down the air pump 31 to complete the initial ring pressure of the water pipe;

[0060] S6. Open the pressure relief valve 24 on the clamp seat 201, rotate the clamp seat 201 and the support 202, and deflect the ring pressure head 204 relative to the pipe 12. After the arc plate 209 abuts against the clamp arm 208, start the air pump 31 again to perform the second stage of ring pressure compensation;

[0061] S7. After the air pressure reaches the ring pressure threshold, the air pump 31 is turned off, the clamp seat 201 and the support 202 are removed, and the ring pressure work of the water pipe is completed.

[0062] like Figure 2-7 As shown, a thin-walled stainless steel water supply pipe ring pressure connection and installation construction equipment includes a pipe 11, a mounting seat 1 is provided on one side of the pipe 11, and a support compensation mechanism 200 is installed on one end surface of the mounting seat 1;

[0063] The support and compensation mechanism 200 includes a clamp seat 201;

[0064] A clamp seat 201 is installed in the middle of one end surface of the mounting base 1, and supports 202 are slidably installed on both sides of the clamp seat 201. A plurality of cylinders 203 are installed at equal angles along the circumferential direction on the inner side of the clamp seat 201. A ring pressure head 204 is slidably sleeved on one end of the cylinder 203. A push plate 205 is slidably installed inside the cylinder 203. A push rod 206 is installed in the middle of the side end of the push plate 205. A guide tube 207 is connected to the middle of the other end of the cylinder 203.

[0065] The inner side of the support 202 is symmetrically mounted with a clamp arm 208, and the curved surface of the clamp arm 208 is embedded with an arc plate 209 for sliding installation. The outer curved surface of the arc plate 209 is symmetrically embedded with an air cylinder 210 on both sides. The middle part of one end of the air cylinder 210 is connected to a tube body 211, and the other end of the air cylinder 210 is embedded with a push rod 213 for sliding installation. One end of the push rod 213 is located at the inner position of the air cylinder 210 and is installed with a top plate 212. The other end of the push rod 213 is installed with a limit head 214. The guide cavity 210 is opened inside the clamp seat 201 and the support 202. 15. The ends of the pipe 11 and the pipe fitting 12 are matched, and the pipe 11 and the pipe fitting 12 are both mounted on the inner side of the ring pressure head 204. Limit rods 21 are installed at the corners of the end faces of both sides of the clamp seat 201, and the support 202 is slidably connected to the clamp seat 201 through the limit rods 21. The top of the clamp seat 201 is symmetrically installed with ear plates 22, and a bolt 23 is threadedly installed in the middle of the side end face of one ear plate 22. A pressure relief valve 24 is installed on one side of the top of the guide cavity 215 for auxiliary limit fixation to ensure the stability of the ring pressure;

[0066] The bottom of the side end surfaces of the clamp seat 201 and the support 202 are both connected to a connecting pipe 216. The sliding distance of the push rod 213 is the same as the sliding distance of the push rod 206. The limit head 214 is an elastic member. The arc plate 209 can deflect at an angle greater than the angle between two adjacent cylinders 203. The guide cavity 215 in the clamp seat 201 is connected to the cylinder 203 through the guide tube 207. The guide cavity 215 in the support 202 is connected to the air cylinder 210 through the tube body 211. The guide cavity 215 is connected to the connecting pipe 216 to perform segmented ring pressing to improve the ring pressing effect.

[0067] A cylinder 217 is mounted in the middle of the top of the mounting base 1, a plug plate 219 is symmetrically slidably mounted inside the cylinder 217, a pull rod 218 is mounted in the middle of the side end face of the plug plate 219, a box 221 is mounted at the bottom of the mounting base 1, a check valve 222 is symmetrically mounted on the edge of the side end face of the box 221, a partition plate 223 is symmetrically mounted inside the box 221 at the inner position of the check valve 222, a shaft tube 224 is mounted in the middle of the side end face of the partition plate 223, and a slider 225 is symmetrically slidably mounted on the outer side of the shaft tube 224;

[0068] A through groove 226 is provided in the middle of the outer curved surface of the shaft tube 224. The space inside the box body 221 outside the two partition plates 223 is connected to the connecting pipes 216 on the two supports 202 through check valves 222 respectively. The space inside the box body 221 inside the slider 225 is connected to the connecting pipe 216 on the clamp seat 201. The two sliders 225 are located on the inside of the two partition plates 223. The space inside the box body 221 inside the slider 225 is connected to the space inside the box body 221 outside the two partition plates 223 through the through groove 226 and the shaft tube 224 to improve the stability of pressure transmission. A gas transmission port 228 is provided in the middle of the top of the box body 221, and a pressure relief port 227 is provided at the side end surface of the box body 221 corresponding to the position of the slider 225.

[0069] A boost drive mechanism 300 is mounted on the other side of the mounting base 1 , and the boost drive mechanism 300 includes a body 301 ;

[0070] A body 301 is installed on the other side of the mounting base 1. A diverter box 302 is embedded in the middle of one end of the body 301, and a threaded ring 303 is installed in the middle of the other end of the body 301. A pushing chamber 304 is opened in the body 301 near the diverter box 302. A large round plug 305 is slidably installed in the pushing chamber 304. A column 306 is installed in the middle of the side end surface of the large round plug 305. A small round plug 307 is installed at the end of the column 306. A pressurizing chamber 308 is opened in the body 301 at the position corresponding to the small round plug 307. A ring plate 309 is installed on the side end surface of the pressurizing chamber 308 near the threaded ring 303.

[0071] The ring plate 309 and the side wall of the boost chamber 308 form an annular groove 310. A gas delivery valve 311 is embedded in the edge of the side end surface of the boost chamber 308, and a flat tube 312 is installed at the end of the gas delivery valve 311. An air supply valve 313 is embedded in the middle of the side end surface of the body 301, inside the threaded ring 303. A sliding cavity 314 is defined inside the body 301 at the bottom of the boost chamber 308. A slide cylinder 315 is slidably mounted inside the sliding cavity 314. A bottom hole 316 is defined on one side of the bottom of the outer curved surface of the slide cylinder 315, and a top hole 317 is defined on the other side of the top of the outer curved surface of the slide cylinder 315.

[0072] A curved hole 318 is provided at the top of the outer curved surface of the sliding cavity 314 at a position corresponding to the top hole 317. A cannula 319 is installed in the middle of one end of the sliding cavity 314. The boosting cavity 308 is connected to the sliding cavity 314 through the annular groove 310. The sliding cavity 314 is connected to the shunt box 302 through the shunt pipe 320. The space between the large round plug 305 and the small round plug 307 inside the pushing cavity 304 and the boosting cavity 308 is connected to the sliding cavity 314 through the curved hole 318. The cannula 319 is in sealing and sliding connection with the large round plug 305. The space between the large round plug 305 and the shunt box 302 inside the pushing cavity 304 is connected to the sliding cavity 314 through the cannula 319 for cyclic boosting.

[0073] The bottom end of the sliding cavity 314 is connected to a diverter tube 320. The sliding cavity 314 is elliptical and fits in with the slide cylinder 315. The sum of the horizontal distance between the end of the curved hole 318 and the end of the diverter tube 320 and the sliding distance of the slide cylinder 315 is equal to the horizontal distance between the bottom hole 316 and the top hole 317, thereby limiting the flow and guiding the flow. This improves the smoothness of the supercharging operation.

[0074] A threaded barrel 321 is installed in the middle of the end surface of the other side of the mounting base 1. A battery 34 is embedded and installed at one end of the body 301 at the top position of the diverter box 302. A switch 35 is embedded and installed at the top edge of the body 301. An air pump 31 is installed at the end of the diverter box 302. A filter head 32 is installed at the end of the air pump 31. The air outlet of the air pump 31 is connected to the inner cavity of the diverter box 302. The input end of the air pump 31 is connected to the battery 34 through the switch 35. A pressure gauge 33 is embedded and installed at the top of the outer curved surface of the threaded barrel 321 to provide stable driving force.

[0075] A shutoff valve 322 is installed at the bottom of the outer curved surface of the threaded barrel 321, and a three-way pipe 323 is installed at the end of the shutoff valve 322. The push chamber 304 is directly connected to the boost chamber 308, and the end surface area of ​​the large round plug 305 is larger than the end surface area of ​​the small round plug 307. The boost chamber 308 is connected to the diverter box 302 through the air supply valve 311 and the flat tube 312. The air supply valve 313 is connected to the boost chamber 308, and the air supply valve 311 and the air supply valve 313 are both one-way valves. The space inside the box body 221 between the partition plate 223 and the slider 225 is connected to the shutoff valve 322 through the three-way pipe 323 to limit the annular pressure threshold.

[0076] The working principle and use process of the present invention are as follows: before using the present installation construction method to perform the ring-pressed connection installation of the thin-walled stainless steel water supply pipe, first, the external cylindrical sealing material is put on the pipe 11, and the end of the pipe 11 together with the external cylindrical sealing material is inserted into the pipe fitting 12, so that the external cylindrical sealing material is stuck in the sealing section cavity of the pipe fitting 12. Here, the order of fixing the ring-pressed connection between the water pipes can be selected according to actual construction requirements. The ring-pressed connection between the water pipes can be fixed one by one first, or the ring-pressed connection between the water pipes can be fixed uniformly after the preliminary arrangement and installation of each pipe 11 and pipe fitting 12 are completed;

[0077] During the ring pressure connection and fixing process between water pipes, the size specifications of the clamp base 201 and the support 202 are first selected according to the size of the water pipe to be connected and fixed by ring pressure, and the mounting base 1 is connected and fixed to the body 301 through the threaded ring 303 and the threaded cylinder 321. Then, the on-off valve 322 is opened, and the air pump 31 is started through the switch 35. The external air is filtered by the filter head 32 and sent into the diversion box 302. In the initial state, the air flow will flow into the boosting chamber 308 through the flat tube 312, and then into the box body 221 through the air supply valve 313 and the air delivery port 228. Then, it will flow into the guide chamber 215 through the connecting pipe 216, and then into each cylinder 203 and the air cylinder 210 to accumulate initial air pressure.

[0078] Subsequently, under the action of air pressure, the small round plug 307 pushes the large round plug 305 toward the air pump 31 through the rod 306. At the same time, under the conduction of the cannula 319, the air between the large round plug 305 and the diverter box 302 in the pushing chamber 304 is pressed into the sliding chamber 314 through the cannula 319, forcing the slide cylinder 315 to slide toward the threaded ring 303, so that the top hole 317 and the curved hole 318 are connected. The air between the large round plug 305 and the diverter box 302 flows into the gap between the large round plug 305 and the small round plug 307 through the curved hole 318.

[0079] As the small round plug 307 continuously moves toward the side of the large round plug 305 under the action of air pressure, air continuously fills the supercharging chamber 308. After the small round plug 307 moves to the end of the supercharging chamber 308, the annular groove 310 will be connected to the space on the other side of the small round plug 307. That is, the space between the air supply valve 313 and the small round plug 307 in the supercharging chamber 308 will be connected to the annular groove 310. At this time, the air flow will enter the sliding chamber 314 through the annular groove 310. Since the small round plug 307 is displaced toward the side of the large round plug 305, it can be seen that the air pressure in the supercharging chamber 308 between the air supply valve 313 and the small round plug 307 is greater than the air pressure in the push chamber 304 between the large round plug 305 and the diverter box 302.

[0080] At this time, under the action of the air pressure difference, the slide 315 moves toward the side of the large round plug 305, causing the top hole 317 and the curved hole 318 to be offset and closed, while the bottom hole 316 is connected to the shunt pipe 320. At this time, the air flow sent into the shunt box 302 by the air pump 31 enters the boost chamber 308 through the shunt pipe 320 and the bottom hole 316, and then enters the space between the large round plug 305 and the shunt box 302 in the push chamber 304 through the cannula 319. Under the action of the air pressure, the large round plug 305 is forced to push the small round plug 307 toward the air supply valve 313 through the rod 306;

[0081] In the initial state, the annular groove 310 is connected to the gap between the large round plug 305 and the small round plug 307. As the small round plug 307 continues to move and returns to its initial position, the annular groove 310 is connected to the gap between the large round plug 305 and the small round plug 307 again. As can be seen from the displacement of the large round plug 305 toward the small round plug 307, at this time, the air pressure inside the pushing chamber 304 between the large round plug 305 and the diverter box 302 is greater than the air pressure between the large round plug 305 and the small round plug 307.

[0082] With the cannula 319 in contact, the air pressure between the large round plug 305 and the shunt box 302 in the pushing chamber 304 acts on the slide 315, forcing the slide 315 to move toward the small round plug 307 under the action of the air pressure and return to its initial position. At this time, the top hole 317 is connected to the curved hole 318 again and returns to its initial position. The small round plug 307, under the action of the air pressure, pushes the large round plug 305 toward the shunt box 302 again.

[0083] This cycle repeats itself. During the reciprocating movement of the small round plug 307 and the large round plug 305, the air flow sent into the pressurizing chamber 308 by the squeezing air pump 31 is circulated and pressurized by utilizing the end face difference between the small round plug 307 and the large round plug 305, causing the air flow pressure output by the air supply valve 313 to continuously increase. Under the conduction of the on-off valve 322 and the three-way pipe 323, the air flow will also synchronously enter the gap between the partition plate 223 and the slider 225 inside the box body 221. Here, the air pressure on the end face of the slider 225 can be limited according to actual needs according to the reading of the pressure gauge 33. This air pressure is the ring pressure threshold during the ring pressure connection and fixing process between the water pipes.

[0084] After the air pressure on the end face of the slider 225 reaches the required annular pressure threshold, the on-off valve 322 is closed, and the air pump 31 is turned off accordingly. After the annular pressure threshold is limited, the pressure relief valve 24 on the support 202 is opened to relieve the pressure. Under the connection between the shaft tube 224 and the through groove 226, and the flow limiting effect of the check valve 222, the air flow inside the guide cavity 215 in the clamp seat 201 can flow to the guide cavity 215 in the support 202. At this time, the pressure relief valve 24 on the support 202 is opened to synchronously discharge the air flow in each guide cavity 215. According to the reading of the pressure gauge 33, the corresponding amount of air flow can be discharged according to the actual situation to limit the initial air pressure inside the cylinder 203 and the air cylinder 210, so as to provide the water pipe with initial supporting force.

[0085] Then, the bolt 23 is rotated in the opposite direction to release the restriction on the ear plate 22, so that the clamp seat 201 and the support 202 can be opened freely, and the limiting rod 21 is pulled to open the clamp seat 201 and the support 202 simultaneously, and the clamp seat 201 and the support 202 are clamped on the outside of the water pipe, and then the limiting rod 21 is lowered to reset the clamp seat 201 and the support 202 to close. Then, the bolt 23 is rotated to press against the ear plate 22, so that the clamp seat 201 and the support 202 cannot be opened. At this time, under the action of the air pressure inside the air cylinder 210, the top plate 212 will push the limiting head 214 through the top rod 213, so that the limiting heads 214 on the two supports 202 are respectively in contact with the pipe 11 and the pipe fitting 12, giving the water pipe an initial supporting force and performing a preliminary correction on the orientation of the pipe 11 and the pipe fitting 12 relative to the ring pressure head 204;

[0086] Then, the pipe 11 and the fitting 12 are pushed along the axial direction of the water pipe to further correct their orientation relative to the ring pressing head 204 so that the portion of the connection between the pipe 11 and the fitting 12 to be pressed is aligned with the ring pressing head 204. At the same time, under the action of the air pressure inside the cylinder 203, the push plate 205 pushes the push rod 206, forcing the ring pressing head 204 to abut against the portion of the connection between the pipe 11 and the fitting 12 to be pressed.

[0087] During this process, under the connection of the connecting pipe 220, the air flow inside the guide cavity 215 of the support 202 will synchronously flow into the cylinder 217, forcing the two plug plates 219 to drag the two supports 202 through the pull rod 218 under the action of air pressure, so that the two supports 202 keep approaching each other. Further, the force will be applied to the pipe 11 and the pipe fitting 12 through the limit head 214, so that the pipe 11 and the pipe fitting 12 maintain the plug-in connection state during the adjustment process. The above-mentioned adjustment work of the pipe 11 and the pipe fitting 12 is a state in which the pipe 11 and the pipe fitting 12 can be adjusted. When the preliminary arrangement and installation of the pipes 11 and the pipe fitting 12 have been completed, that is, when the pipes 11 and the pipe fitting 12 are not adjustable, the clamp seat 201 and the support 202 can be moved.

[0088] Then, the air pump 31 is started. After circulating and pressurizing, the air flow is sent into the air cylinder 203 and the air cylinder 210 again. Under the action of the air pressure, the limit heads 214 on the two supports 202 will respectively lock the pipe fitting 12 and the pipe material 11, limiting their relative positions. Meanwhile, the ring pressure heads 204 on the outside of the pipe fitting 12 will squeeze the pipe fitting 12, forcing the pipe fitting 12 to tightly clamp the pipe material 11. As the air pressure continues to rise, the outer diameter of the pipe fitting 12 is forced to shrink, causing the pipe fitting 12 to be recessed and embedded in the pipe material 11, forming a threaded engagement effect.

[0089] After the air pressure reaches the annular pressure threshold, the air pressure between the two plug plates 219 inside the box body 221 is sufficient to offset the air pressure on the other side of the two plug plates 219, pushing the two plug plates 219 to move away from each other. At this time, the pressure relief port 227 will be connected to the space between the two plug plates 219 inside the box body 221, and the excess air will be discharged through the pressure relief port 227, preventing the air pressure inside the cylinder 203 from exceeding the pressure threshold, achieving automatic pressure maintenance, and then shutting down the air pump 31 to complete the initial annular pressure of the water pipe;

[0090] Next, the pressure relief valve 24 on the clamp base 201 is opened, and the air in the guide cavity 215 in the clamp base 201 is discharged, reducing the air pressure in the cylinder 203. As a result, the ring pressure head 204 no longer presses tightly against the pipe 12, allowing it to move relative to the pipe 12. At the same time, due to the flow restriction of the check valve 222, the air in the guide cavity 215 in the support 202 cannot flow back into the guide cavity 215 in the clamp base 201. In other words, the air in the guide cavity 215 in the support 202 cannot be discharged through the pressure relief valve 24 on the clamp base 201. As a result, the pipe 11 and the pipe 12 are still locked by the limit head 214 and cannot move relative to each other.

[0091] At this time, the clamp seat 201 and the support 202 are rotated. Driven by the support 202 and limited by the limit head 214, the arc plate 209 will slide and deflect relative to the clamp arm 208, and the ring pressure head 204 will also deflect relative to the pipe 12 under the drive of the clamp seat 201. After the clamp seat 201 and the support 202 are rotated to the limit position, that is, after the arc plate 209 abuts against the clamp arm 208, the air pump 31 is started again, and the ring pressure heads 204 on the outside of the pipe 12 will squeeze the pipe 12 again, performing the second stage of compensating ring pressure.

[0092] After the air pressure reaches the annular pressure threshold, the air pump 31 is turned off, and then the pressure relief valve 24 on the support 202 is opened. The gas in the cylinder 203 and the air cylinder 210 is discharged. The bolt 23 is rotated in the opposite direction to release the limit of the ear plate 22, so that the clamp seat 201 and the support 202 can be opened freely. The clamp seat 201 and the support 202 are removed from the outside of the water pipe to complete the annular pressure work of the water pipe.

[0093] During the entire ring pressing process, the limit head 214 will firmly lock the pipe 11 and the pipe fitting 12. At the same time, under the pulling of the pull rod 218, the pipe 11 and the pipe fitting 12 will maintain the displacement drive towards each other, which can avoid their dislocation during the ring pressing process. The ring pressing pressure of each ring pressing head 204 is directly derived from the internal air pressure of each cylinder 203, which can make full use of the fluidity of the air flow to make the ring pressing pressure more uniform. The position of the ring pressing head 204 can be adjusted to compensate for the wear error of the ring pressing head 204 during the working process, and the ring pressing head 204 can be suitable for the ring pressing work of water pipes with different diameters.

[0094] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A thin-walled stainless steel water pipe ring pressure connection and installation construction equipment, characterized by: including pipes (11); A mounting seat (1) is provided on one side of the pipe (11), a support and compensation mechanism (200) is installed on one end surface of the mounting seat (1), and the support and compensation mechanism (200) includes a clamp seat (201); A clamp seat (201) is mounted on one end face of the mounting seat (1), supports (202) are slidably mounted on both sides of the clamp seat (201), a plurality of cylinders (203) are mounted at equal angles along the circumferential direction on the inner side of the clamp seat (201), a ring pressure head (204) is slidably sleeved on one end of the cylinder (203), a push plate (205) is slidably mounted inside the cylinder (203), a push rod (206) is mounted in the middle of the side end of the push plate (205), and a guide tube (207) is connected in the middle of the other end of the cylinder (203); A clamp arm (208) is symmetrically mounted on the inner side of the support (202), an arc plate (209) is embedded in the arc surface of the clamp arm (208) and is slidably mounted, an air cylinder (210) is symmetrically embedded on both sides of the outer curved surface of the arc plate (209), a tube body (211) is connected to the middle of one end of the air cylinder (210), a push rod (213) is embedded in the other end of the air cylinder (210) and is slidably mounted, a top plate (212) is mounted on one end of the push rod (213), and a limiting head (214) is mounted on the other end of the push rod (213), a guide cavity (215) is opened inside the clamp seat (201) and the support (202), and a connecting pipe (216) is connected to the bottom of the side end surfaces of the clamp seat (201) and the support (202).

2. The thin-walled stainless steel water pipe ring pressure connection and installation construction equipment according to claim 1 is characterized in that: A cylinder (217) is installed in the middle of the top of the mounting seat (1), a plug plate (219) is symmetrically slidably installed inside the cylinder (217), a pull rod (218) is installed in the middle of the side end face of the plug plate (219), a box (221) is installed at the bottom of the mounting seat (1), a check valve (222) is symmetrically installed on the edge of the side end face of the box (221), and the inside of the box (221) is located at the inner side of the check valve (222). A partition plate (223) is installed, and a shaft tube (224) is installed in the middle of the side end surface of the partition plate (223). A slider (225) is symmetrically slidably installed on the outside of the shaft tube (224). A through groove (226) is opened in the middle of the outer curved surface of the shaft tube (224). A gas delivery port (228) is opened in the middle of the top of the box body (221), and a pressure relief port (227) is opened at the position of the side end surface of the box body (221) corresponding to the slider (225).

3. The thin-walled stainless steel water pipe ring pressure connection and installation construction equipment according to claim 2, characterized in that: The ends of the pipe (11) and the pipe fitting (12) are matched, and the pipe (11) and the pipe fitting (12) are both mounted on the inner side of the ring pressure head (204). Limit rods (21) are installed at the corners of the end faces on both sides of the clamp seat (201), and the support (202) is slidably connected to the clamp seat (201) through the limit rods (21). Ear plates (22) are symmetrically installed on the top of the clamp seat (201), and a bolt (23) is installed in the middle of the side end face of one ear plate (22) through a thread. A pressure relief valve (24) is installed on one side of the top of the guide cavity (215).

4. The thin-walled stainless steel water pipe ring pressure connection and installation construction equipment according to claim 2, characterized in that: The sliding distance of the push rod (213) is the same as the sliding distance of the push rod (206), the limit head (214) is an elastic member, the arc plate (209) can deflect at an angle greater than the angle between two adjacent cylinders (203), the guide cavity (215) in the clamp seat (201) is connected to the cylinder (203) through a conduit (207), the guide cavity (215) in the support (202) is connected to the air cylinder (210) through a tube body (211), and the guide cavity (215) is communicated with the connecting pipe (216).

5. The thin-walled stainless steel water pipe ring pressure connection and installation construction equipment according to claim 2, characterized in that: The space inside the box body (221) outside the two partition plates (223) is connected to the connecting pipes (216) on the two supports (202) through the check valves (222), and the space inside the box body (221) inside the slider (225) is connected to the connecting pipe (216) on the clamp seat (201). The two sliders (225) are located inside the two partition plates (223). The space inside the box body (221) inside the slider (225) is communicated with the space inside the box body (221) outside the two partition plates (223) through the through groove (226) and the shaft tube (224).

6. The thin-walled stainless steel water pipe ring pressure connection and installation construction equipment according to claim 2, characterized in that: A boost drive mechanism (300) is mounted on the other side of the mounting seat (1), and the boost drive mechanism (300) comprises a body (301); A body (301) is installed on the other side of the mounting seat (1), a diversion box (302) is embedded in the middle of one end of the body (301), a threaded ring (303) is installed in the middle of the other end of the body (301), a push cavity (304) is provided in the body (301) near the diversion box (302), a large round plug (305) is slidably installed in the push cavity (304), a column (306) is installed in the middle of the side end face of the large round plug (305), a small round plug (307) is installed at the end of the column (306), a boosting cavity (308) is provided in the body (301) at a position corresponding to the small round plug (307), and a ring plate (309) is installed in the side end face of the boosting cavity (308) near the threaded ring (303); The ring plate (309) and the side wall of the boost chamber (308) are combined to form an annular groove (310); an air delivery valve (311) is embedded in the edge of the side end face of the boost chamber (308); a flat tube (312) is installed at the end of the air delivery valve (311); an air delivery valve (313) is embedded in the middle of the side end face of the body (301) at the inner side of the threaded ring (303); a sliding cavity (314) is provided inside the body (301) at the bottom of the boost chamber (308); a slide cylinder (315) is slidably installed inside the slide cavity (314); the slide cavity (314) is elliptical in shape, and the slide cavity (314) and the slide cylinder (315) are matched; A bottom hole (316) is provided on one side of the bottom of the outer curved surface of the slide cylinder (315), and a top hole (317) is provided on the other side of the top of the outer curved surface of the slide cylinder (315); A curved hole (318) is provided at the top of the outer curved surface of the sliding cavity (314) at a position corresponding to the top hole (317); a plug (319) is installed in the middle of one end of the sliding cavity (314); a shunt pipe (320) is connected to the bottom end of the sliding cavity (314); the sum of the horizontal distance between the end of the curved hole (318) and the end of the shunt pipe (320) and the sliding distance of the sliding cylinder (315) is equal to the horizontal distance between the bottom hole (316) and the top hole (317); A threaded barrel (321) is mounted in the middle of the other end face of the mounting seat (1), an on-off valve (322) is mounted at the bottom of the outer curved surface of the threaded barrel (321), and a three-way pipe (323) is mounted at the end of the on-off valve (322).

7. The thin-walled stainless steel water pipe ring pressure connection and installation construction equipment according to claim 6, characterized in that: One end of the body (301) is located at the top of the diverter box (302), and a battery (34) is embedded and installed. A switch (35) is embedded and installed at the top edge of the body (301). An air pump (31) is installed at the end of the diverter box (302). A filter head (32) is installed at the end of the air pump (31), and the air outlet of the air pump (31) is connected to the inner cavity of the diverter box (302). The input end of the air pump (31) is connected to the battery (34) through the switch (35). A pressure gauge (33) is embedded and installed at the top of the outer curved surface of the threaded barrel (321).

8. The thin-walled stainless steel water pipe ring pressure connection and installation construction equipment according to claim 6, characterized in that: The push chamber (304) is directly connected to the boost chamber (308), and the end surface area of ​​the large round plug (305) is larger than the end surface area of ​​the small round plug (307). The boost chamber (308) is connected to the diversion box (302) through the air delivery valve (311) and the flat tube (312). The air delivery valve (313) is connected to the boost chamber (308), and both the air delivery valve (311) and the air delivery valve (313) are one-way valves. The space inside the box body (221) between the partition plate (223) and the slider (225) is connected to the on-off valve (322) through the three-way pipe (323).

9. The thin-walled stainless steel water pipe ring pressure connection and installation construction equipment according to claim 6, characterized in that: The boost chamber (308) is connected to the slide chamber (314) via the annular groove (310), and the slide chamber (314) is connected to the shunt box (302) via the shunt tube (320). The space between the large round plug (305) and the small round plug (307) inside the push chamber (304) and the boost chamber (308) is connected to the slide chamber (314) via the curved hole (318). The insert tube (319) is sealed and slidably connected to the large round plug (305), and the space between the large round plug (305) and the shunt box (302) inside the push chamber (304) is connected to the slide chamber (314) via the insert tube (319).

10. A method for connecting and installing thin-walled stainless steel water pipes using ring pressure according to claim 6, characterized in that: The construction steps are as follows: S1. Put the outer cylindrical sealing material on the pipe (11), and insert the end of the pipe (11) together with the outer cylindrical sealing material into the pipe (12); S2, open the on-off valve (322), start the air pump (31), and limit the air pressure on the end surface of the slider (225) according to the reading of the pressure gauge (33), which is the ring pressure threshold; S3, closing the on-off valve (322) and the air pump (31), opening the pressure relief valve (24) on the support (202), and limiting the initial air pressure inside the cylinder (203) and the air cylinder (210); S4, clamping the clamp seat (201) and the support (202) onto the outside of the water pipe, and correcting the position of the ring pressure head (204); S5, starting the air pump (31), and each ring pressure head (204) squeezes the pipe (12). After the air pressure reaches the ring pressure threshold, the air pump (31) is turned off to complete the initial ring pressure of the water pipe; S6. Open the pressure relief valve (24) on the clamp seat (201), rotate the clamp seat (201) and the support (202), and deflect the ring pressure head (204) relative to the pipe (12). After the arc plate (209) abuts against the clamp arm (208), start the air pump (31) again to perform the second stage compensation ring pressure; S7. After the air pressure reaches the annular pressure threshold, the air pump (31) is turned off, the clamp seat (201) and the support (202) are removed, and the annular pressure work of the water pipe is completed.

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