Cooling device for welding four-way valve

Abstract

The utility model discloses a cooling device for four-way valve welding, which comprises a fixing support, a positioning structure and a cooling structure, the positioning structure and the cooling structure are fixedly arranged on the fixing support, the positioning structure is used for fixing a tubing of a four-way valve, the cooling structure comprises a cooling tank and a water inlet tank, a partition plate is arranged between the cooling tank and the water inlet tank, and the partition plate is used for fixing the tubing of the four-way valve. A plurality of net openings are formed in the upper end of the partition plate, flowing cooling media are contained in the cooling tank and the water inlet tank, the cooling tank is connected with a water outlet pipe, a positioning channel is formed in the fixing support, and the water outlet pipe is arranged in the positioning channel in a penetrating mode. The cooling tank and the water inlet tank are arranged, a four-way valve assembly to be welded is placed in the cooling tank, constant and uniform soaking and cooling of the four-way valve are achieved through cooling media circularly flowing in the cooling tank and the water inlet tank, and uniform cooling in the welding process is guaranteed; and the problems of electromagnetic high-temperature failure, inner valve burning and the like in the four-way valve welding process are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning four-way valve production equipment, in particular to a cooling device for welding a four-way valve. Background Art

[0002] The four-way valve is also called the electromagnetic four-way valve. It is an important component for automatic reversing in heat pump air conditioners to achieve cooling and heating. It is mainly composed of two major components: the control coil and the four-way valve body. During the installation process, it is important to keep the valve body axis horizontal. During the production and manufacturing, the four-way valve components are mainly assembled by welding. Since the welding point of the four-way valve is close to the valve body, there are problems such as electromagnetic high temperature failure and internal valve burns during welding. Therefore, the valve body needs to be cooled during the welding process of the four-way valve. The cooling method currently used is to cool it by flushing with water.

[0003] The existing cooling method can only achieve local cooling, which may lead to uneven cooling, burns to the inner valve block of the valve body, water ingress into the pipeline, and other problems, which may cause abnormal performance of the air conditioner outdoor unit. In addition, during the cooling process by water flushing, due to the impact of the water flow and rapid heat exchange, some splashed water droplets will quickly heat up. When welding personnel pick up the four-way valve, they are easily scalded by the splashed water, which poses a safety hazard. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art water flushing cooling method, such as uneven cooling, local cooling causing burns to the inner valve block of the valve body, hand-held control operation during welding, and scalding caused by some splashed water droplets, which poses a safety hazard, the purpose of the utility model is to provide a cooling device for four-way valve welding.

[0005] The utility model solves the technical problem by adopting the following technical solution: a cooling device for welding a four-way valve, comprising a fixed bracket and a positioning structure and a cooling structure fixedly arranged on the fixed bracket, the positioning structure being used to fix the piping of the four-way valve, the cooling structure comprising a cooling trough and a water inlet trough, a partition being arranged between the cooling trough and the water inlet trough, a plurality of mesh openings being provided at the upper end of the partition, flowing cooling medium being contained in the cooling trough and the water inlet trough, the cooling trough being connected to a water outlet pipe, a positioning channel being arranged on the fixed bracket, and the water outlet pipe being passed through the positioning channel.

[0006] As a further improvement of the utility model: a mounting hole is provided at the end of the water outlet pipe, a positioning hole is opened at the lower end of the positioning channel, and a fastener is provided between the positioning hole and the mounting hole.

[0007] As a further improvement of the utility model: a positioning seat is provided on the fixed bracket, the interior of the positioning seat is a hollow structure, one end of the positioning seat is connected to a nitrogen filling pipe, and the other end of the positioning seat is connected to the piping of the four-way valve.

[0008] As a further improvement of the utility model: the water inlet trough is connected with a water inlet pipe, the fixed bracket is provided with a limiting opening, and the water inlet pipe is passed through the limiting opening.

[0009] As a further improvement of the present utility model: the positioning structure includes a first positioning component and a second positioning component, the fixed bracket is provided with a primary bracket, a secondary bracket and a main frame, the primary bracket is installed with the positioning seat and the first positioning component, the secondary bracket is installed with the second positioning component, and the primary bracket and the secondary bracket are fixedly connected to the main frame respectively.

[0010] As a further improvement of the utility model: a first fixing hole is opened on the first-level bracket, the first positioning assembly is provided with a first support rod, a first fixing member and a support member, the first support rod is movably inserted into the first fixing hole, the first fixing member limits the first support member in the first fixing hole, and a limiting recess is provided on the support member.

[0011] As a further improvement of the present utility model: the limiting recess is any one of a V-shaped structure, a C-shaped structure, a G-shaped structure and a U-shaped structure.

[0012] As a further improvement of the utility model: a second fixing hole is opened on the secondary bracket, the second positioning assembly is provided with a second support rod, a second fixing piece and a clamping piece, the second support rod is movably inserted into the second fixing hole, the second support rod is limited in the second fixing hole by the second fixing piece, and the clamping piece is fixedly provided on the second support rod.

[0013] As a further improvement of the utility model: the fixed bracket is provided with a base, the main frame is fixedly connected to the base, the base is provided with a water leakage hole, and the water leakage hole is communicated with the positioning channel and the water outlet pipe.

[0014] As a further improvement of the utility model: a first supporting rib is provided at the connection between the primary bracket and the main frame, a second supporting rib is provided at the connection between the secondary bracket and the main frame, and a third supporting rib is provided at the connection between the base and the main frame.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model adopts a circulating cooling immersion method, by arranging a cooling trough and a water inlet trough, connecting the cooling trough and the cooling medium in the water inlet trough through a partition and a mesh port thereon, and utilizing a water outlet pipe, a mesh port and a water inlet pipe to realize the circulating flow of the cooling medium, so that a constant and uniform water flow immerses the four-way valve in the cooling trough. Compared with the cooling method of flushing the four-way valve with water flow, the utility model has a rapid and uniform cooling effect, ensures the reliability of the welding process, avoids burning of the inner valve block of the valve body due to uneven cooling, does not require welders to hold the four-way valve for welding, and immersion cooling will not splash high-temperature water. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic structural diagram of a cooling device for welding a four-way valve.

[0018] Figure 2 It is a structural schematic diagram of the fixing bracket of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the cooling structure of the utility model.

[0020] Reference numerals:

[0021] 1. Fixed bracket, 11. Main bracket, 111. Positioning channel, 112. Positioning hole, 113. Limiting opening, 12. Positioning seat, 13. Nitrogen filling pipe, 14. Base, 141. Leakage hole, 15. Primary bracket, 16. Secondary bracket;

[0022] 2. Positioning structure, 21. First positioning assembly, 211. First support rod, 212. First fixing member, 213. Support member, 2131. Positioning recess, 22. Second positioning assembly, 222. Second support rod, 223. Second fixing member, 223. Clamping member;

[0023] 3. Cooling structure, 31. Cooling trough, 32. Water inlet trough, 33. Partition, 331. Net port, 4. Water inlet pipe, 5. Water outlet pipe, 51. Installation hole. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] In order to solve the technical problems in the prior art, the utility model is further described in conjunction with the accompanying drawings and embodiments:

[0027] like Figure 1-Figure 3 As shown, the utility model discloses a cooling device for welding a four-way valve, comprising a fixed bracket 1, a positioning structure 2 and a cooling structure 3, wherein the positioning structure 2 is used to fix the piping of the four-way valve, the cooling structure 3 and the positioning structure 2 are both arranged on the fixed bracket 1, the cooling structure 3 comprises a cooling groove 31 and a water inlet groove 32, a partition 33 is arranged between the cooling groove 31 and the water inlet groove 32, a plurality of mesh ports 331 are opened on the upper end of the partition 33, the cooling groove 31 and the water inlet groove 32 are connected through the plurality of mesh ports 331, at this time, the height of the mesh port 331 in the cooling groove 31 is lower than the height of the welding point of the four-way valve, which not only ensures the circulation of the cooling medium between the cooling groove 31 and the water inlet groove 32, but also limits the height of the cooling medium in the cooling groove 31, and does not affect the welding of the welding point of the four-way valve, wherein the cooling groove 31 is used to place the welding medium to be welded The four-way valve body, the cooling groove 31 and the water inlet groove 32 are filled with flowing cooling medium. Usually, the cooling medium is tap water at room temperature. At the same time, a water inlet is provided at the bottom of the water inlet groove 32, and a water inlet pipe 4 is installed at the water inlet. A water outlet is provided at the bottom of the cooling groove 31, and a water outlet pipe 5 is installed at the water outlet. A positioning channel 111 and a limiting opening 113 are provided on the fixed bracket 1. The water outlet pipe 5 is penetrated in the positioning channel 111, and the water outlet pipe 5 is arranged in the fixed bracket 1, which is convenient for storing pipelines and reducing the influence on welding action. The positioning channel 111 is a hollow structure connected at both ends, which can directly discharge the water cooled by the four-way valve. The water inlet pipe 4 is penetrated in the limiting opening 113, and the limiting opening 113 is provided to position the water inlet pipe 4 on the fixed bracket 1, which well converges the water inlet pipe 4. When the cooling medium enters the water inlet tank 32 from the water inlet pipe 4, it flows into the cooling tank 31 through the mesh port 331 on the baffle, and the water flow flushes the cooling four-way valve. The constant and uniform flow of cooling medium is used to achieve continuous cooling of the four-way valve in the cooling tank 31, and finally flows out through the water outlet pipe 5 for recycling.

[0028] During the welding process, by setting up structures such as the cooling trough 31 and the water outlet pipe 5, the water inlet trough 32 and the water inlet pipe 4 and the fixed bracket 1, the four-way valve is specifically inverted in the cooling trough 31, which not only locates the welding position of the four-way valve assembly, but also uses a constant and uniform cooling medium or water flow to flush and immerse the valve body of the four-way valve to avoid the welding point being too close to the valve body, and problems such as electromagnetic high temperature aging and internal valve burning during the welding of the four-way valve. High-temperature water splashes will not be generated, and at the same time, the four-way valve assembly is placed with the pipe mouth facing upward to avoid water entering the four-way valve.

[0029] In some embodiments, the fixed support 1 is provided with a positioning seat 12, the interior of the positioning seat 12 is a hollow structure, one end of the positioning seat 12 is connected to a nitrogen charging pipe 13, the interior of the positioning seat 12 is provided with a nitrogen charging branch pipe, the nitrogen charging branch pipe is connected to the nitrogen charging pipe 13, the outlet of the nitrogen charging branch pipe is provided on the other end of the positioning seat 12, and the other end of the positioning seat 12 is connected to the piping of the four-way valve. The nitrogen charging branch pipe is directly built into the hollow structure of the positioning seat 12, and the positioning seat 12 is installed on the fixed support 1, so that the nitrogen charging pipe 13 and the nitrogen charging branch pipe are limited and fixed on the fixed support 1, so as to avoid the disorderly placement of the nitrogen charging branch pipe affecting the welding work.

[0030] In the above example, the positioning seat 12 is designed to be a hollow structure, and the nitrogen filling pipe 13 is connected to the nitrogen filling branch pipe, and nitrogen is flowed from the nitrogen filling pipe 13 into the piping of the four-way valve to achieve nitrogen filling welding, thereby preventing oxide scale from being generated inside the piping of the four-way valve. In addition, the positioning seat 12 is integrally arranged with the fixing bracket 1, and the hollow structure formed inside the positioning seat 12 can accommodate the nitrogen filling branch pipe to pass through.

[0031] In addition, the nitrogen filling branch pipe is arranged in the positioning seat 12. The interior of the positioning seat 12 is a hollow structure and is designed to be flared. The nitrogen filling branch pipe is between the inner diameter before and after the flaring, ensuring that the nitrogen is fully filled into the pipeline to avoid leakage.

[0032] In addition, one end of the positioning seat 12 is connected to the pipe of the four-way valve. The positioning seat 12 is designed with different lengths to have a certain positioning effect on different four-way valve pipes. In actual applications, different positioning seats 12 are selected for four-way valve pipes of different diameters.

[0033] In some embodiments, in order to improve the stability and reliability of the cooling structure 3 fixed on the fixed bracket 1, a mounting hole 51 is provided at the end of the water outlet pipe 5, a positioning hole 112 is opened at the lower end of the positioning channel 111, and a fastener is provided between the positioning hole 112 and the mounting hole 51.

[0034] Among them, the positioning channel 111 is the first installation position opened on the fixed bracket 1, and the limiting opening 113 is also the second installation position opened on the fixed bracket 1. The first installation position cooperates with the water outlet pipe 5, and the second installation position cooperates with the water inlet pipe 4 to fix the cooling structure 3. Furthermore, through the above-mentioned positioning holes 112, mounting holes 51 and fasteners, the water outlet pipe 5 and the positioning channel 111 are limited and fixed, thereby improving the installation stability and reliability of the cooling structure 3, and at the same time, the height of the water outlet pipe 5 can be adjusted, thereby adjusting the installation height of the cooling structure 3.

[0035] In practical applications, the number of the positioning holes 112 and the mounting holes 51 can be one, two or even more, and the shapes of the positioning holes 112 and the mounting holes 51 can be circular, rectangular, etc. The number and shape of the positioning holes 112 and the mounting holes 51, as well as the spacing between adjacent positioning holes 112 and adjacent mounting holes 51 are not limited herein, and can be adjusted according to actual needs.

[0036] In some embodiments, the fixed bracket 1 is provided with a base 14, and a leakage hole 141 is opened on the base 14. The leakage hole 141 is connected to the positioning channel 111 and the water outlet pipe 5, and the cooling water for flushing the cooling four-way valve flows into the bottom of the base 14. Preferably, the base 14 is built into a water collecting box to collect and recycle the cooling water.

[0037] In a specific example, the base 14 is configured as a hollow structure, and a plurality of leakage holes 141 are provided on the outer side of the base 14. The base 14 is disposed below the cooling structure 3. The cooling water in the cooling tank 31 and the water inlet tank 32 are quickly circulated and replaced through the outlet pipe 5, the positioning channel 111, the base 14 and the leakage holes 141 to ensure heat exchange of the cooling water in the cooling tank 31. The four-way valve is statically immersed in the cooling water as a whole, and the cooling is uniform, thereby achieving overall cooling, which is different from the local cooling by existing water flow flushing.

[0038] In a specific example, the base 14 is in a cross structure.

[0039] In some embodiments, the positioning structure 2 includes a first positioning component 21 and a second positioning component 22, wherein the first positioning component 21 fixes a pipe of a four-way valve, and the second positioning component 22 fixes another pipe of a four-way valve, and the fixed bracket 1 is provided with a primary bracket 15, a secondary bracket 16 and a main frame 11, wherein the positioning seat 12 and the first positioning component 21 are installed on the primary bracket 15, and the second positioning component 22 is installed on the secondary bracket 16, and the primary bracket 15 and the secondary bracket 16 are respectively fixedly connected to the main frame 11. By respectively arranging positioning components on the primary bracket 15 and the secondary bracket 16, the pipes of the four-way valves are dispersedly limited and fixed.

[0040] Furthermore, the main frame 11 is provided with the positioning channel 111, and the main frame 11 is fixedly connected to the base 14. In addition, the connection between the primary bracket 15 and the main frame 11 is provided with a first supporting rib, the connection between the secondary bracket 16 and the main frame 11 is provided with a second supporting rib, and the connection between the base 14 and the main frame 11 is provided with a third supporting rib.

[0041] Furthermore, in order to separate the piping of the four-way valve, the first-level bracket 15 is arranged on the front side of the main frame 11, and the second-level bracket 16 is arranged on the rear side of the main frame 11. The installation height of the first positioning component 21 on the first-level bracket 15 can also be lower than the second positioning component 22 on the second-level bracket 16, or the installation height of the first positioning component 21 on the first-level bracket 15 is higher than the second positioning component 22 on the second-level bracket 16. Therefore, the installation heights of the first positioning component 21 and the second positioning component 22 are inconsistent and are arranged on different sides, and each positioning component separately fixes a piping of the four-way valve, and according to the above-mentioned use of the positioning seat 12 to fix a piping, the piping of the four-way valve is independent and separately fixed.

[0042] In some embodiments, a first fixing hole is provided on the first-level bracket 15, and the first positioning assembly 21 is provided with a first support rod 211, a first fixing member 212 and a support member 213. The first support rod 211 is movably inserted into the first fixing hole, and the first fixing member 212 is used to limit the first support rod 211 in the first fixing hole. At the same time, the support member 213 is arranged on one end of the first support rod 211, and a limiting recess 2131 is provided on the support member 213.

[0043] The limiting recess 2131 is a V-shaped structure, a C-shaped structure, a G-shaped structure or a U-shaped structure. The piping of the four-way valve is positioned by the limiting recess 2131 of the support member 213, and the height of the support member 213 is adjusted by the cooperation of the first support rod 211, the first fixing member 212 and the first fixing hole.

[0044] In some embodiments, the secondary bracket 16 is provided with a second fixing hole, the second positioning assembly 22 is provided with a second support rod 222, a second fixing member 223 and a clamping member 223, the second support rod 222 is movably inserted into the second fixing hole, the second support rod 222 is limited in the second fixing hole of the secondary bracket 16 by the second fixing member 223, and the clamping member 223 is fixedly provided on the second support rod 222. At the same time, the second support rod 222 can automatically rotate in the second fixing hole.

[0045] The first fixing member 212 and the second fixing member 223 are usually bolts, fixing pins, etc.

[0046] The clamping member 223 has the function of fixing and limiting the piping, and can be a clamp, the above-mentioned limiting recess 2131 and other structures.

[0047] The working principle of the utility model is as follows: the four-way valve is inverted in the cooling tank 31, and the water pipe is connected to the water inlet pipe 4 to realize the static water flow flushing, immersion and cooling welding of the four-way valve. The pipes E, C and S of the four-way valve are respectively placed on the second positioning component 22 of the secondary bracket 16, the positioning seat 12 and the first positioning component 21 of the primary bracket 15, wherein the internal nitrogen-filled branch pipe of the positioning seat 12 is connected with the pipe C, and the welding point is relatively located above the cooling tank 31. Since the height of the mesh port 331 is lower than the welding point height of the four-way valve, the highest height of the water level in the cooling tank 31 is controlled without affecting welding. The cooling water flows into the cooling tank 31 through the water inlet pipe 4, and the whole four-way valve is continuously and evenly cooled by water flow in the cooling tank 31, and then flows out through the water outlet pipe 5 for recycling.

[0048] During the welding process, a constant and uniform water flow is used to statically flush and immerse the four-way valve body to cool it, so as to avoid electromagnetic high temperature failure and internal valve burning caused by the welding point being too close to the valve body, thereby ensuring the reliability and stability of the welding process. At the same time, the nitrogen flowing in through the nitrogen filling pipe 13 effectively prevents the formation of oxide scale in the pipe during the welding process.

[0049] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0050] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A cooling device for welding a four-way valve, characterized in that: It includes a fixed bracket and a positioning structure and a cooling structure fixedly arranged on the fixed bracket, the positioning structure is used to fix the piping of the four-way valve, the cooling structure includes a cooling groove and a water inlet groove, a partition is arranged between the cooling groove and the water inlet groove, a plurality of mesh ports are opened on the upper end of the partition, the cooling groove and the water inlet groove contain flowing cooling medium, the cooling groove is connected to a water outlet pipe, a positioning channel is arranged on the fixed bracket, and the water outlet pipe is penetrated in the positioning channel.

2. A cooling device for welding a four-way valve according to claim 1, characterized in that: A mounting hole is arranged at the end of the water outlet pipe, a positioning hole is opened at the lower end of the positioning channel, and a fastener is arranged between the positioning hole and the mounting hole.

3. A cooling device for welding a four-way valve according to claim 1 or 2, characterized in that: A positioning seat is provided on the fixed bracket, the interior of the positioning seat is a hollow structure, one end of the positioning seat is connected to a nitrogen filling pipe, and the other end of the positioning seat is connected to the piping of the four-way valve.

4. A cooling device for welding a four-way valve according to claim 1, characterized in that: The water inlet trough is connected with a water inlet pipe, the fixed bracket is provided with a limiting opening, and the water inlet pipe is passed through the limiting opening.

5. A cooling device for welding a four-way valve according to claim 3, characterized in that: The positioning structure includes a first positioning component and a second positioning component. The fixed bracket is provided with a primary bracket, a secondary bracket and a main frame. The primary bracket is installed with the positioning seat and the first positioning component, and the secondary bracket is installed with the second positioning component. The primary bracket and the secondary bracket are fixedly connected to the main frame respectively.

6. A cooling device for welding a four-way valve according to claim 5, characterized in that: The first-level bracket is provided with a first fixing hole, the first positioning assembly is provided with a first support rod, a first fixing member and a support member, the first support rod is movably inserted into the first fixing hole, the first fixing member limits the first support member in the first fixing hole, and the support member is provided with a limiting recess.

7. A cooling device for welding a four-way valve according to claim 6, characterized in that: The limiting recess is any one of a V-shaped structure, a C-shaped structure, a G-shaped structure and a U-shaped structure.

8. A cooling device for welding a four-way valve according to claim 5 or 6, characterized in that: The secondary bracket is provided with a second fixing hole, the second positioning assembly is provided with a second support rod, a second fixing piece and a clamping piece, the second support rod is movably inserted into the second fixing hole, the second support rod is limited in the second fixing hole by the second fixing piece, and the clamping piece is fixedly provided on the second support rod.

9. A cooling device for welding a four-way valve according to claim 8, characterized in that: The fixed bracket is provided with a base, the main frame is fixedly connected to the base, the base is provided with a water leakage hole, and the water leakage hole is communicated with the positioning channel and the water outlet pipe.

10. A cooling device for welding a four-way valve according to claim 9, characterized in that: A first supporting rib is provided at the connection between the primary support and the main frame, a second supporting rib is provided at the connection between the secondary support and the main frame, and a third supporting rib is provided at the connection between the base and the main frame.

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