A positioning clamp for welding refrigerant pipes in an air source water heater

Abstract

This utility model discloses a positioning clamp for welding refrigerant pipes in air source water heaters, relating to the field of pipe installation technology. The utility model includes a base and a pipe. Two limiting plates are fixedly connected to the top of the base. It also includes: a positioning mechanism disposed on the top of the base, used to align the pipe with other pipes; and a fixing mechanism disposed on the top of the base, used to fix the positioning mechanism. Specifically, this utility model uses a positioning mechanism where a cylinder is activated to continuously move the pipe vertically via a support plate, thereby changing the pipe's height and aligning the positioning hole of the pipe with a positioning pin. After alignment, an electric push rod is driven to mechanically insert the positioning pin into the positioning hole of the pipe. This not only maintains the stability of the pipe axis but also greatly improves the welding quality.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline installation technology, and in particular relates to a positioning clamp for welding refrigerant pipelines of air source water heaters. Background Technology

[0002] Air source heat pump water heaters achieve heat transfer through the phase change cycle of refrigerant. The refrigerant pipelines must withstand high pressure, corrosion resistance, and long-term stable operation.

[0003] Welding, as the core process of pipe connection, directly affects the system's sealing performance, pressure resistance, and thermal efficiency. Refrigerant pipes need to ensure axial stability during welding. However, existing refrigerant pipes are prone to pipe misalignment during welding due to excessively large or small weld gaps. Pipe misalignment not only leads to problems such as porosity and cracks in the weld, but also greatly reduces the welding quality and creates hidden dangers for the use of the pipes. To address this, we propose a positioning clamp for welding refrigerant pipes in air source water heaters. Utility Model Content

[0004] The purpose of this utility model is to provide a positioning clamp for welding refrigerant pipes in air source water heaters. By setting a positioning mechanism, specifically, during the process, a cylinder is activated to drive the pipe to move continuously in the vertical direction through a support plate, thereby changing the height of the pipe and aligning the positioning hole of the pipe with the positioning pin. After alignment, an electric push rod can be driven to insert the positioning pin into the positioning hole of the pipe through mechanical linkage. This not only maintains the stability of the pipe axis but also greatly improves the welding quality. It solves the problem that existing refrigerant pipes are prone to pipe displacement during welding due to excessively large or small weld gaps. Pipe displacement not only leads to problems such as porosity and cracks in the weld but also greatly reduces the welding quality and creates hidden dangers for the use of the pipe.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a positioning clamp for welding refrigerant pipes in an air source water heater, comprising a base and a pipe, wherein two limiting plates are fixedly connected to the top of the base, and further comprising:

[0007] A positioning mechanism is disposed on the top of the base and is used to align the pipe with other pipes.

[0008] A fixing mechanism, which is disposed on the top of the base, is used to fix the positioning mechanism;

[0009] The positioning mechanism consists of two sets, with the fixing mechanism located between the two sets of positioning mechanisms.

[0010] Furthermore, the positioning mechanism includes a drive assembly disposed on the top of the base, the drive assembly being used to provide power;

[0011] A linkage component, wherein the linkage component is disposed on the top of the base, and the internal parts of the linkage component are used to link the internal parts of the drive component.

[0012] The drive component generates power and transmits it to the internal parts of the linkage component, which in turn transmit the power to other parts within the drive component.

[0013] Furthermore, the fixing mechanism includes a clamping assembly disposed on the top of the base, the clamping assembly being used to limit the position of the pipe;

[0014] A support assembly is disposed on top of the base and is used to provide a support foundation for the pipeline;

[0015] The clamping components consist of two sets, with the support component located between the two sets of clamping components.

[0016] Furthermore, the drive assembly includes a slide rail mounted on the top of the base, two connecting brackets slidably connected to the outer surface of the slide rail, and a connecting rod fixedly connected to the top of the connecting brackets;

[0017] The connecting rod has a positioning pin fixedly connected to the top of the pipe on the side, the slide rail has a fixing block fixedly connected to the top, and the fixing block has an electric push rod fixedly connected to the top.

[0018] Furthermore, the linkage component includes a fixed seat installed on the top of the base, a limit rod fixedly connected to the side of the fixed seat near the fixed block, a drive frame slidably connected to the outer surface of the limit rod, and a connecting rod hinged inside the drive frame;

[0019] The connecting rod is hinged to the inside of the connecting frame on the side near the connecting frame, the top of the drive frame is fixedly connected to the mounting ring, and the output rod of the electric push rod near the drive frame is fixedly connected to the side of the mounting ring near the fixing block.

[0020] Furthermore, the clamping assembly includes a pusher frame, a clamping block is fixedly connected to the top of the pusher frame near the pipe, and the bottom of the pusher frame is slidably connected to the inside of the base;

[0021] The push frame has a double-threaded rod internally threaded, the base has a motor fixedly connected to the front, and the output end of the motor is fixedly connected to the front of the double-threaded rod via a coupling.

[0022] Furthermore, the support assembly includes a cylinder mounted on the top of the base, and a support plate is fixedly connected to the top output rod of the cylinder. Limiting rings are fixedly connected to both the front and back of the support plate.

[0023] The limiting ring has a cylinder that is slidably connected inside it. The bottom of the cylinder is fixedly connected to the top of the base, and the top of the support plate is arc-shaped.

[0024] This utility model has the following beneficial effects:

[0025] 1. This utility model, by setting up a positioning mechanism, specifically requires the activation of a cylinder to drive the pipe to move continuously in the vertical direction through a support plate, thereby changing the height of the pipe and aligning the positioning hole of the pipe with the positioning pin. After alignment, the electric push rod can be driven to insert the positioning pin into the positioning hole of the pipe through mechanical linkage. This not only maintains the stability of the pipe axis but also greatly improves the welding quality.

[0026] 2. This utility model uses a clamping assembly, specifically a motor that drives a bidirectional threaded rod to rotate, which in turn drives a pusher frame to slide inside the base. The pusher frame then moves the clamping block toward the pipe until the clamping block fixes the pipe in place, at which point welding can be performed on the pipe.

[0027] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the connecting frame structure of this utility model;

[0031] Figure 3 This is a schematic diagram of the connecting rod structure of this utility model;

[0032] Figure 4 This is a schematic diagram of the support plate structure of this utility model;

[0033] Figure 5 This is a schematic diagram of the bidirectional threaded rod structure of this utility model.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Base; 11. Limiting plate; 12. Pipe; 2. Positioning mechanism; 21. Drive assembly; 211. Electric push rod; 212. Fixing block; 213. Slide rail; 214. Connecting frame; 215. Connecting rod; 216. Positioning pin; 22. Linkage assembly; 221. Connecting rod; 222. Limiting rod; 223. Drive frame; 224. Mounting ring; 3. Fixing mechanism; 31. Clamping assembly; 311. Clamping block; 312. Push frame; 313. Bidirectional threaded rod; 314. Motor; 32. Support assembly; 321. Cylinder; 322. Support plate; 323. Cylinder; 324. Limiting ring. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0037] Please see Figures 1-5As shown, this utility model is a positioning fixture for welding refrigerant pipes of an air source water heater, including a base 1 and a pipe 12. Two limiting plates 11 are fixedly connected to the top of the base 1. It also includes a positioning mechanism 2, which is located on the top of the base 1. The positioning mechanism 2 is used to align the pipe 12 with other pipes 12. During this process, a cylinder 323 is activated to drive the pipe 12 to move continuously in the vertical direction via a support plate 322, thereby changing the height of the pipe 12 so that the positioning hole of the pipe 12 aligns with the positioning pin 216. After alignment, an electric push rod 211 can be driven to mechanically connect... The positioning pin 216 is inserted into the positioning hole of the pipe 12, which not only maintains the stability of the pipe 12 axis, but also greatly improves the welding quality; the fixing mechanism 3 is set on the top of the base 1 and is used to fix the positioning mechanism 2; there are two sets of positioning mechanisms 2, and the fixing mechanism 3 is located between the two sets of positioning mechanisms 2. The positioning mechanism 2 includes a drive component 21 set on the top of the base 1, which is used to provide power; the linkage component 22 is set on the top of the base 1, and the internal parts of the linkage component 22 are used to control the internal parts of the drive component 21. The linkage mechanism includes: a drive component 21 that generates power and transmits it to internal parts of the linkage component 22, which in turn transmits the power to other internal parts of the drive component 21; a fixing mechanism 3 that includes a clamping component 31 mounted on the top of the base 1 for limiting the position of the pipe 12; and a support component 32 mounted on the top of the base 1 for providing a support base for the pipe 12. The clamping components 31 consist of two sets, with the support component 32 located between the two sets of clamping components 31. The drive component 21 includes a slide rail 213 mounted on the top of the base 1. The outer surface of the slide rail 213 is slidably connected to two connecting brackets 214, and the top of the connecting brackets 214 is fixedly connected to a connecting rod 215; wherein, the top of the connecting rod 215 is fixedly connected to a positioning pin 216 on the side near the pipe 12, the top of the slide rail 213 is fixedly connected to a fixing block 212, the top of the fixing block 212 is fixedly connected to an electric push rod 211, the linkage assembly 22 includes a fixing seat installed on the top of the base 1, the side of the fixing seat near the fixing block 212 is fixedly connected to a limit rod 222, the outer surface of the limit rod 222 is slidably connected to a drive frame 223, and the drive frame 223 is hinged to a connecting rod 221 inside;The connecting rod 221 is hinged to the inside of the connecting frame 214 near the connecting frame 214. The top of the drive frame 223 is fixedly connected to the mounting ring 224. The output rod of the electric push rod 211 near the drive frame 223 is fixedly connected to the side of the mounting ring 224 near the fixing block 212. The clamping assembly 31 includes a push frame 312. A clamping block 311 is fixedly connected to the top of the push frame 312 near the pipe 12. The bottom of the push frame 312 is slidably connected to the inside of the base 1. The starter motor 314 drives the bidirectional threaded rod 313 to rotate. The bidirectional threaded rod 313 drives the push frame 312 to slide inside the base 1. The push frame 312 drives the clamping block 311 to move towards the pipe 12 until the clamping block... 311. Fix pipe 12 in place, then welding can be performed on pipe 12. The push frame 312 has a double-threaded rod 313 internally threaded. A motor 314 is fixedly connected to the front of the base 1. The output end of the motor 314 is fixedly connected to the front of the double-threaded rod 313 via a coupling. The support assembly 32 includes a cylinder 323 mounted on the top of the base 1. A support plate 322 is fixedly connected to the top output rod of the cylinder 323. Limiting rings 324 are fixedly connected to both the front and back of the support plate 322. A cylinder 321 is slidably connected inside the limiting ring 324. The bottom of the cylinder 321 is fixedly connected to the top of the base 1. The top of the support plate 322 is arc-shaped.

[0038] A specific application of this embodiment is as follows: First, the clamp is moved to a predetermined position, and the pipe 12 is placed flat on the support plate 322. Then, the electric push rod 211 is activated to increase the extension length of the output rod. The electric push rod 211 drives the drive frame 223 to move towards the center of the base 1 by increasing the extension length of the output rod. The drive frame 223 drives the connecting rod 221 to move towards the support plate 322. The connecting rod 221 drives the connecting frame 214 to slide along the slide rail 213 towards the fixed block 212. The connecting frame 214 drives the connecting rod 215 to slide towards the fixed block 212. The connecting rod 215 drives the positioning pin 216 to move towards the pipe 12. During this process, the cylinder 323 needs to be activated. The support plate 322 drives the pipe 12 to move continuously in the vertical direction, thereby changing the height of the pipe 12 and aligning the positioning hole of the pipe 12 with the positioning pin 216. After alignment, the electric push rod 211 can be driven to insert the positioning pin 216 into the positioning hole of the pipe 12 through mechanical linkage, thereby maintaining the stability of the axis of the pipe 12. Finally, the motor 314 is started to drive the bidirectional threaded rod 313 to rotate. The bidirectional threaded rod 313 drives the push frame 312 to slide inside the base 1. The push frame 312 drives the clamping block 311 to move towards the pipe 12 until the clamping block 311 fixes the pipe 12. At this time, the pipe 12 can be welded.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A positioning clamp for welding refrigerant pipes of air energy water heaters, comprising a base (1) and a pipe (12), the top of the base (1) is fixedly connected with two limiting plates (11), characterized in that, Also includes: Positioning mechanism (2), which is disposed on the top of base (1), is used to align pipe (12) with other pipes (12); A fixing mechanism (3) is provided on the top of the base (1) and is used to fix the positioning mechanism (2); The positioning mechanism (2) consists of two sets, and the fixing mechanism (3) is located between the two sets of positioning mechanisms (2).

2. The positioning fixture for welding the refrigerant pipe of an air energy water heater according to claim 1, characterized in that, The positioning mechanism (2) includes a drive assembly (21) disposed on the top of the base (1), the drive assembly (21) being used to provide power; Linkage component (22), which is disposed on the top of the base (1), and the internal parts of the linkage component (22) are used to link the internal parts of the drive component (21); The drive component (21) generates power and transmits it to the internal parts of the linkage component (22), which in turn transmit the power to other internal parts of the drive component (21).

3. The positioning fixture for welding the refrigerant pipe of an air energy water heater according to claim 2, characterized in that, The fixing mechanism (3) includes a clamping assembly (31) disposed on the top of the base (1), the clamping assembly (31) being used to limit the pipe (12); A support assembly (32) is disposed on top of the base (1) and is used to provide a support foundation for the pipe (12); There are two sets of clamping components (31), and the support component (32) is located between the two sets of clamping components (31).

4. The positioning fixture for welding the refrigerant pipe of an air energy water heater according to claim 3, characterized in that, The drive assembly (21) includes a slide rail (213) mounted on the top of the base (1), and two connecting brackets (214) are slidably connected to the outer surface of the slide rail (213). A connecting rod (215) is fixedly connected to the top of the connecting bracket (214). The connecting rod (215) is fixedly connected to a positioning pin (216) on the side of the top near the pipe (12), the slide rail (213) is fixedly connected to a fixing block (212), and the fixing block (212) is fixedly connected to an electric push rod (211).

5. An air-to-water heater refrigerant line welding positioning jig according to claim 4, characterised in that, The linkage component (22) includes a fixed seat installed on the top of the base (1). A limit rod (222) is fixedly connected to the side of the fixed seat near the fixed block (212). A drive frame (223) is slidably connected to the outer surface of the limit rod (222). A connecting rod (221) is hinged inside the drive frame (223). The connecting rod (221) is hinged to the inside of the connecting frame (214) on the side near the connecting frame (214), the top of the drive frame (223) is fixedly connected to the mounting ring (224), and the output rod of the electric push rod (211) near the drive frame (223) is fixedly connected to the side of the mounting ring (224) near the fixing block (212).

6. An air-to-water heater refrigerant line welding positioning jig according to claim 5, characterised in that, The clamping assembly (31) includes a pusher (312), a clamping block (311) is fixedly connected to the top of the pusher (312) near the pipe (12), and the bottom of the pusher (312) is slidably connected to the inside of the base (1); The push frame (312) is internally threaded with a bidirectional threaded rod (313), and the base (1) is internally fixedly connected with a motor (314). The output end of the motor (314) is fixedly connected to the front of the bidirectional threaded rod (313) via a coupling.

7. An air-to-water heater refrigerant line welding positioning jig according to claim 6, characterised in that, The support assembly (32) includes a cylinder (323) mounted on the top of the base (1). The top output rod of the cylinder (323) is fixedly connected to a support plate (322). Limiting rings (324) are fixedly connected to both the front and back of the support plate (322). The limiting ring (324) has a cylinder (321) slidably connected inside it. The bottom of the cylinder (321) is fixedly connected to the top of the base (1). The top of the support plate (322) is arc-shaped.

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