Refrigerant pipe cutting device and method for air conditioner installation

Abstract

The invention relates to the technical field of refrigerant pipe machining, and discloses a refrigerant pipe cutting device and method for air conditioner installation, the refrigerant pipe cutting device comprises a base, a pipe fitting, a cutting assembly and two limiting assemblies, the cutting assembly and the two limiting assemblies are sequentially arranged on the base, and the pipe fitting is limited between the two limiting assemblies; the cutting assembly is arranged between the two limiting assemblies and cuts off the pipe fitting. A first pipe body extending into the pipe fitting and a driving assembly driving the first pipe body to move along the pipe fitting are installed on the base, and a push-pull assembly is installed in the first pipe body. The push-and-pull assembly is driven by the driving part to move in the first pipe body, the electrorheological fluid in the liquid cavity is pushed into the bag type electrifying assembly, the electrorheological fluid is gradually hardened after electrifying, the bag type electrifying assembly is tightly attached to the inner wall of the pipe fitting, a uniform supporting layer is formed, through the design, the pipe fitting can be effectively prevented from deforming during cutting, and the service life of the pipe fitting is prolonged. And sweeps can be prevented from entering the pipe fitting.

Description

Technical Field

[0001] The invention relates to the technical field of refrigerant pipe processing, and in particular to a refrigerant pipe cutting device and method for air conditioner installation. Background Art

[0002] The air conditioning refrigerant pipe is an important component for transmitting refrigerant in the air conditioning system. Its main function is to connect the indoor unit and the outdoor unit so that the refrigerant can circulate in the system to achieve the cooling or heating function. The performance and installation quality of the refrigerant pipe are directly related to the operating efficiency and service life of the air conditioning system. In the selection of the refrigerant pipe of the air conditioning, copper pipes are usually used. Copper pipes have good thermal conductivity, corrosion resistance and mechanical strength, which can effectively ensure the transmission efficiency of the refrigerant and the stability of the system. In addition, copper pipes also have good ductility, which is convenient for bending and connecting operations during the installation process. During the installation of the air conditioner, due to different installation environments and air conditioning system layouts, the length of the refrigerant pipe needs to be cut according to the actual situation;

[0003] After searching, a Chinese patent with announcement number CN115055750B discloses a refrigerant pipe cutting device for air conditioner installation, including a rolling cutter device, a workbench, a first driving device, a second driving device, a sealing device, a supporting device, a sliding device and a pressing device. The workbench is horizontally arranged, the first driving device and the second driving device are symmetrically arranged on the workbench, the first driving device and the second driving device have the same structure, two sealing devices are provided, and the two sealing devices are respectively arranged on the first driving device and the second driving device, the supporting device is provided, the two supporting devices are symmetrically arranged on the workbench and connected to the first driving device and the second driving device, and are both slidably matched with the workbench, the sliding device is arranged on the workbench and connected to the corresponding sliding device to be slidably matched with the workbench, the pressing device is arranged on the sliding device, and the The roller cutter device is arranged on the sliding device. In the above scheme, the head end of the refrigerant tube to be cut is sleeved on the sealing device on the first driving device and supported by the supporting device on the first driving device. Then, the head end of the refrigerant tube is moved so that the head end of the refrigerant tube is against the side end of the driving frame on the first driving device. Then, the sealing device on the first driving device is operated to rotate the sealing disk on the output end of the sealing motor. The rotation of the sealing disk drives the movement of the sealing shafts in the rotating grooves. The movement of the sealing shafts drives the movement of the sealing rods in the sliding grooves, so that the sealing plates expand outward to prop up the inside of the refrigerant tube. At this time, the refrigerant tube supports and limits the inside of the refrigerant tube through the sealing device on the first driving device, thereby preventing the refrigerant tube from being deformed when being cut. However, the above scheme still has shortcomings in actual use:

[0004] During the cutting process of the refrigerant tube by the refrigerant tube cutting device proposed in the above scheme, the inner wall of the refrigerant tube is supported by the sealing plate on the sealing device expanding outward. Due to its fixed shape and rigidity, a certain degree of deformation may still occur, and the sealing plate may not be able to completely fit the inner wall of the copper tube, resulting in an unsatisfactory supporting effect.

[0005] In order to solve the above problems, the present application proposes a refrigerant pipe cutting device and method for air conditioner installation. Summary of the invention

[0006] The present invention proposes a refrigerant pipe cutting device and method for air conditioner installation, which solves the problem in the related art that the inner wall of the refrigerant pipe is supported by the outward expansion of the sealing plate on the sealing device, but due to its fixed shape and rigidity, a certain degree of deformation may still occur, and the sealing plate may not be able to completely fit the inner wall of the copper pipe, resulting in an unsatisfactory supporting effect.

[0007] The present invention provides a refrigerant pipe cutting device for air conditioner installation, comprising a base, a pipe fitting, a cutting assembly and two limit assemblies:

[0008] The cutting component and the two limiting components are arranged on the base in sequence, the pipe is limited between the two limiting components, and the cutting component is placed between the two limiting components to cut the pipe;

[0009] The base is provided with a first tube body extending into the tube and a driving assembly driving the first tube body to move along the tube; a push-pull assembly is installed in the first tube body, and the push-pull assembly divides the first tube body into an independent liquid chamber and a gas chamber; the end of the first tube body is connected to a bladder-type power-on assembly communicating with the liquid chamber, the liquid chamber is filled with electrorheological fluid, and the first tube body is connected to an air blowing pipe communicating with the gas chamber and arranged toward the bladder-type power-on assembly;

[0010] The driving assembly is provided with a driving member for driving the push-pull assembly to move back and forth in the first tube body.

[0011] As a further optimization scheme of the present invention, the push-pull assembly includes a partition block, a push-pull rod, a second piston and a third piston. The partition block is installed in the middle part of the first tube body, the liquid chamber and the gas chamber are separated by the partition block, and a push-pull rod is slidably connected to the middle part of the partition block. One end of the push-pull rod is installed with the second piston located in the liquid chamber, and the other end is installed with the third piston located in the gas chamber.

[0012] As a further optimization scheme of the present invention, the capsule-type power supply component includes a capsule body and a wire. The capsule body is connected to the end of the first tube body. A cavity connected to the liquid chamber is opened in the capsule body, and the wire is arranged in the cavity.

[0013] As a further optimization solution of the present invention, one end of the first tube body away from the capsule-type power supply component is connected to an air pusher connected to the limit component;

[0014] The air pusher includes a second tube body, a connecting rod, a fourth piston and an air duct. The second tube body is connected to an end of the first tube body away from the sac-type power-on assembly, and the first tube body is not connected to the second tube body. A fourth piston is slidably arranged in the second tube body, and a connecting rod is connected to the end of the fourth piston. An end of the connecting rod away from the fourth piston slides through the first tube body and is connected to the third piston. An end of the second tube body close to the first tube body is connected to an air duct, and the air duct is connected to the limiting assembly. The fourth piston is driven by a driving member to reciprocate in the second tube body.

[0015] As a further optimization scheme of the present invention, the limit assembly includes a limit block, a limit hole, a ventilation fastening piece and a shunt pipe. The two limit blocks are installed on the base. The two limit blocks are provided with a through limit hole. The two ends of the pipe fitting are respectively inserted into the two limit holes. The two limit blocks are installed with a ventilation fastening piece for limiting the pipe fitting. The two ventilation fastening pieces are connected by a shunt pipe, and the air guide pipe is connected to the shunt pipe.

[0016] As a further optimization scheme of the present invention, the ventilation and tightening member includes an air cylinder, a first piston, a tightening rod and a spring. The first piston is slidably arranged in the air cylinder, and the tightening rod is installed at the bottom of the first piston, and the bottom end of the tightening rod slides through the bottom of the air cylinder and the top of the limit block and extends into the limit hole. A spring is sleeved on the tightening rod, and the two ends of the spring are respectively connected to the first piston and the bottom of the air cylinder, and the two ends of the diversion pipe are respectively connected to the top ends of the two air cylinders.

[0017] As a further optimization scheme of the present invention, the cutting assembly includes two sliding seats, a sliding mouth, a knife seat, a slider, an electric push rod, a rolling cutter and a second motor. The two sliding seats are arranged between the two limit assemblies. The two sliding seats are each provided with a sliding mouth that is through and vertically arranged. The knife seat is arranged between the two sliding seats. Slide blocks are installed at both ends of the knife seat. The two sliders are respectively slidably matched with the two sliding mouths. An electric push rod is installed on the top of the sliding seat. The slider is connected to the electric push rod and is driven by the electric push rod to reciprocate along the sliding mouth. The knife seat is installed with a rolling cutter located at its bottom and a second motor that drives the rolling cutter to rotate.

[0018] As a further optimization scheme of the present invention, a first fixed block and a second fixed block are respectively installed on both sides of the two limit blocks, a screw is rotatably installed between the two first fixed blocks, a first motor is installed on one of the first fixed blocks, the output end of the first motor is connected to one end of the screw, a limit rod is fixed between the two second fixed blocks, one of the sliding seats is threadedly matched with the screw, and the other sliding seat is slidably matched with the limit rod.

[0019] As a further optimization solution of the present invention, the driving assembly includes an electric slide rail and an assembly block, the electric slide rail is installed on the base, the driving end of the electric slide rail is installed with an assembly block, and the second tube body is installed on the assembly block;

[0020] The driving member comprises a cylinder, which is mounted on the assembly block and located at one end of the second tube body away from the first tube body. The fourth piston is connected to the cylinder and driven by the cylinder to reciprocate in the second tube body.

[0021] As a further optimization scheme of the present invention, a method for cutting a refrigerant tube for installing an air conditioner, using the above-mentioned refrigerant tube cutting device for installing an air conditioner, comprises the following steps:

[0022] Step 1: Place the pipe fitting by inserting the two ends of the pipe fitting into the two limit assemblies respectively;

[0023] Step 2: Adjust the cutting position of the cutting assembly for the pipe fitting, and drive the cutting assembly to move between the two limit assemblies through the driver as needed, and move the cutting assembly to the pipe fitting cutting position;

[0024] Step 3: Adjust the position of the capsule-type power-carrying component on the first tube body in the tube, and drive the first tube body to move in the tube by the driving component, so that the capsule-type power-carrying component on the first tube body moves to the front end of the tube cutting position;

[0025] Step 4: introduce electrorheological fluid into the capsule-type power-on component, and drive the push-pull component to move in the first tube body through the driving member. The push-pull component pushes the electrorheological fluid in the liquid chamber into the capsule-type power-on component. At this time, the capsule-type power-on component is powered on, and the electrorheological fluid entering the capsule-type power-on component will gradually harden, so that the capsule-type power-on component can fit closely to the inner wall of the tube, thereby forming a uniform support layer after power is turned on. When the push-pull component moves in the gas chamber, external gas enters it along the blowing pipe;

[0026] Step 5: Fix the pipe fitting. When the driving member drives the push-pull assembly to move, the pushing member can be driven to guide the gas into the ventilation and tightening member. The ventilation and tightening member can tighten the pipe fitting under the gas pressure.

[0027] Step six, cutting the pipe fittings, and finally cutting the pipe fittings through the cutting assembly.

[0028] The above technical solution of the present invention has the following beneficial technical effects:

[0029] 1. The present invention drives the push-pull assembly to move in the first tube body through a driving member, and pushes the electrorheological fluid in the liquid chamber into the capsule-type electrification assembly. After electrification, the electrorheological fluid gradually hardens, so that the capsule-type electrification assembly closely fits the inner wall of the pipe fitting to form a uniform support layer. This design can not only effectively prevent the pipe fitting from being deformed during cutting, but also prevent waste chips from entering the pipe fitting, thereby significantly improving the stability and sealing of the pipe fitting during cutting;

[0030] 2. After the traditional refrigerant pipe cutting device completes the cutting, it often requires an additional cleaning step to remove the dust and waste chips remaining in the pipe, which increases the complexity and time cost of the operation. When the push-pull assembly of the present invention moves in the gas chamber, the external gas enters it through the blowing pipe. After the pipe is cut, the power to the capsule-type power-on assembly is cut off, and the push-pull assembly is driven to return to its original position. The electrorheological fluid in the capsule-type power-on assembly flows back to the liquid chamber. At this time, the volume of the capsule-type power-on assembly gradually decreases. At the same time, the gas in the gas chamber is blown to the end of the capsule-type power-on assembly through the blowing pipe, which can quickly blow away the dust and waste chips. This process not only achieves rapid cleaning, but also simplifies the operation process and improves work efficiency.

[0031] 3. The driving member of the present invention can drive the air pusher to guide the gas into the ventilation and tightening member while driving the push-pull assembly to move. The ventilation and tightening member tightens the pipe under the gas pressure to keep it in a clamped and fixed state. This design integrates the actions of the push-pull assembly and the ventilation and tightening member, improves the integration of the device, reduces the operation steps, and makes the entire cutting process more convenient;

[0032] 4. During long-term use, traditional refrigerant pipe cutting devices are prone to component wear and failure due to frequent mechanical movements and complex structures, which shortens the service life of the equipment and increases maintenance costs. The present invention adopts a combination of electrorheological fluid and bladder-type energized components to support and fix the pipes through electronic control, reducing the use of easily worn parts in traditional mechanical structures. At the same time, the movements between the components are coordinated by the drive parts and the pneumatic system, reducing mechanical friction and the risk of failure. This design not only improves the reliability of the equipment, but also extends the service life of the equipment, reduces maintenance costs, and improves the overall performance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The present invention is a schematic diagram of the overall structure of a refrigerant pipe cutting device for air conditioner installation.

[0034] Figure 2 This is a schematic diagram of the back structure of a refrigerant pipe cutting device for air conditioner installation proposed by the present invention.

[0035] Figure 3 It is a schematic diagram of the cross-sectional structure of the pipe fitting of the present invention.

[0036] Figure 4 It is a schematic cross-sectional structure diagram of the pipe fitting, the first pipe body and the sac-type power supply component of the present invention.

[0037] Figure 5 For the present invention Figure 4 Schematic diagram of the structures of the middle pipe, the first pipe body, the sac-type power supply component and the push-pull component.

[0038] Figure 6 For the present invention Figure 4 Overall front view.

[0039] Figure 7 For the present invention Figure 6 Schematic diagram of the overall local structure.

[0040] Figure 8 It is a schematic structural diagram of the limiting component of the present invention.

[0041] Fig. 9 It is a schematic structural diagram of the ventilation and fastening member of the present invention.

[0042] Fig.10 It is a schematic structural diagram of the cutting assembly of the present invention.

[0043] Figure numerals: 1, base; 101, pipe fitting; 102, first fixed block; 103, second fixed block; 104, screw; 105, first motor; 106, limit rod; 2, cutting assembly; 21, sliding seat; 22, sliding mouth; 23, knife seat; 24, slider; 25, electric push rod; 26, hob; 27, second motor; 3, limit assembly; 31, limit block; 32, limit hole; 33, ventilation and tightening member; 331, air cylinder; 332, first piston; 333, stop Tightening rod; 334, spring; 34, shunt tube; 4, first tube body; 41, bladder-type power supply assembly; 411, bladder body; 412, wire; 42, push-pull assembly; 421, partition block; 422, push-pull rod; 423, second piston; 424, third piston; 43, air blowing tube; 44, air pushing member; 441, second tube body; 442, connecting rod; 443, fourth piston; 444, air guide tube; 45, cylinder; 5, drive assembly; 51, electric slide rail; 52, assembly block. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0045] like Figure 1-10 As shown, the present invention provides a refrigerant pipe cutting device for air conditioner installation, comprising a base 1, a pipe fitting 101, a cutting component 2 and two limit components 3:

[0046] The cutting component 2 and the two limiting components 3 are arranged on the base 1 in sequence, the pipe 101 is limited between the two limiting components 3, and the cutting component 2 is placed between the two limiting components 3 to cut the pipe 101;

[0047] The base 1 serves as the supporting foundation of the entire device and provides a stable working platform. The limiting component 3 is used to limit the position of the pipe 101 so that it remains fixed during the cutting process, preventing the pipe 101 from shifting and ensuring the accuracy of the cutting position. The cutting component 2 undertakes the key task of cutting the pipe 101. Through this layout and structural design, the cutting accuracy and stability of the refrigerant pipe can be improved, the cutting error caused by the movement or position deviation of the pipe 101 can be reduced, and the product quality can be guaranteed.

[0048] The base 1 is provided with a first tube body 4 extending into the tube 101 and a driving assembly 5 for driving the first tube body 4 to move along the tube 101. A push-pull assembly 42 is installed in the first tube body 4, and the push-pull assembly 42 divides the first tube body 4 into independent liquid chambers and gas chambers. The end of the first tube body 4 is connected to a bladder-type power-on assembly 41 in communication with the liquid chamber, and the liquid chamber is filled with electrorheological fluid. The first tube body 4 is connected to an air blowing pipe 43 in communication with the gas chamber and arranged toward the bladder-type power-on assembly 41.

[0049] A driving component is installed on the driving assembly 5 to drive the push-pull assembly 42 to move back and forth in the first tube body 4 .

[0050] It should be noted that the driving component 5 drives the first tube body 4 to move in the pipe 101, so as to adjust the position of the sac-type power-carrying component 41. The push-pull component 42 can change the volume of the liquid chamber and the gas chamber under the action of the driving component. When the electrorheological fluid is pushed to the sac-type power-carrying component 41, the electrorheological fluid is used to closely fit the inner wall of the pipe 101 to form a supporting layer due to the increased viscosity and hardness of the electrorheological fluid after being energized. The setting of the air pipe 43 allows external gas to enter the gas chamber during the movement of the push-pull component 42 and play a role in subsequent operations. This design can not only effectively prevent the pipe 101 from deformation during cutting and ensure the flatness of the cutting surface, but also prevent waste chips from entering the pipe 101, thereby improving the sealing and stability of the pipe 101 during cutting and reducing subsequent cleaning work.

[0051] like Figure 3 , Figure 4 and Figure 5 As shown, in this embodiment, the push-pull assembly 42 includes a partition block 421, a push-pull rod 422, a second piston 423 and a third piston 424. The partition block 421 is installed in the middle of the first tube body 4, and the liquid chamber and the gas chamber are separated by the partition block 421. The middle of the partition block 421 is slidably connected with a push-pull rod 422. One end of the push-pull rod 422 is installed with the second piston 423 located in the liquid chamber, and the other end is installed with the third piston 424 located in the gas chamber.

[0052] It should be noted that the partition block 421 serves to isolate the liquid chamber and the gas chamber to ensure that the two chambers do not interfere with each other. The push-pull rod 422 is connected to the second piston 423 and the third piston 424. When the driving member pushes the push-pull rod 422, the second piston 423 can push the electrorheological fluid in the liquid chamber, and the third piston 424 moves in the gas chamber, changing the pressure and volume of the gas chamber to achieve orderly movement of the liquid and gas. Through this structure, the push of the electrorheological fluid and the entry and exit of the gas can be controlled, making the operation of the device more stable and reliable, and improving the controllability of the supporting effect of the bladder-type power-on component 41 on the pipe 101.

[0053] like Figure 5 and Figure 7 As shown, in this embodiment, the capsule-type power supply component 41 includes a capsule body 411 and a wire 412. The capsule body 411 is connected to the end of the first tube body 4. A cavity connected to the liquid chamber is opened in the capsule body 411, and the wire 412 is arranged in the cavity.

[0054] It should be noted that: the capsule 411 serves as a container for holding electrorheological fluid. Its soft material can smoothly enter the pipe 101 when the electrorheological fluid is not energized. When the electrorheological fluid enters the cavity of the capsule 411 under the action of the push-pull component 42, the wire 412 is energized to make the electrorheological fluid harden. Specifically, the rheological properties of the electrorheological fluid will change under the action of the electric field. When the electrorheological fluid is energized, the particles inside it will be rearranged, thereby increasing its viscosity and shear strength. This characteristic enables the electrorheological fluid to support the inner wall of the refrigerant pipe like a solid when energized, providing sufficient rigidity to resist external forces. This is a prior art and will not be elaborated on. The capsule 411 fits tightly against the inner wall of the pipe 101 with the support of the hardened electrorheological fluid. The component can flexibly adjust its shape as needed, fit tightly against pipes 101 with different diameters, provide uniform and stable supporting force, effectively prevent deformation of the pipe 101, and improve cutting quality.

[0055] like Figure 5 , Figure 6 and Figure 7 As shown, in this embodiment, one end of the first tube body 4 away from the capsule-type power supply component 41 is connected to a gas pusher 44 that is in communication with the limit component 3;

[0056] The air pusher 44 includes a second tube body 441, a connecting rod 442, a fourth piston 443 and an air duct 444. The second tube body 441 is connected to one end of the first tube body 4 away from the sac-type power-on component 41, and the first tube body 4 is not connected to the second tube body 441. A fourth piston 443 is slidably arranged in the second tube body 441, and a connecting rod 442 is connected to the end of the fourth piston 443. The end of the connecting rod 442 away from the fourth piston 443 slides through the first tube body 4 and is connected to the third piston 424. An end of the second tube body 441 close to the first tube body 4 is connected to the air duct 444, and the air duct 444 is connected to the limiting component 3. The fourth piston 443 is driven by the driving member to reciprocate in the second tube body 441.

[0057] It should be noted that when the driving member drives the push-pull assembly 42 to move, the fourth piston 443 is driven to move in the second tube body 441 through the connecting rod 442. When the fourth piston 443 moves toward the direction close to the first tube body 4, the gas in the second tube body 441 is compressed, and the gas is transported to the limiting assembly 3 through the air guide tube 444, thereby further fixing the pipe 101. This linkage design enables the push-pull assembly 42 and the limiting assembly 3 to cooperate with each other, while supporting the inside of the pipe 101, strengthening the external fixing effect, improving the overall stability and reliability of the device, and reducing the risk of displacement of the pipe 101 during the cutting process.

[0058] like Figure 1 and Figure 8As shown, in this embodiment, the limit assembly 3 includes a limit block 31, a limit hole 32, a ventilation fastening member 33 and a shunt pipe 34. The two limit blocks 31 are both installed on the base 1. The two limit blocks 31 are each provided with a through limit hole 32. The two ends of the pipe 101 are respectively inserted into the two limit holes 32. The two limit blocks 31 are each provided with a ventilation fastening member 33 for limiting the pipe 101. The two ventilation fastening members 33 are connected via the shunt pipe 34, and the air guide pipe 444 is connected to the shunt pipe 34.

[0059] It should be noted that: the limit block 31 and the limit hole 32 perform preliminary positioning and restriction on the pipe fitting 101 from both ends to ensure that the pipe fitting 101 remains stable in the horizontal direction. After receiving the gas delivered by the air pusher 44, the ventilation and tightening member 33 uses the gas pressure to push the internal components to move, thereby further tightening and fixing the pipe fitting 101. The diverter pipe 34 ensures that the two ventilation and tightening members 33 can be acted upon by the gas at the same time, so that the force on both sides of the pipe fitting 101 is uniform. Through the coordinated action of multiple components, the degree of freedom of the pipe fitting 101 is effectively limited to prevent it from shaking or displacing during the cutting process, thereby improving the cutting accuracy and quality, and at the same time ensuring the applicability of the device to pipe fittings 101 of different diameters.

[0060] like Figure 8 and Fig. 9 As shown, in this embodiment, the ventilation and tightening member 33 includes an air cylinder 331, a first piston 332, a tightening rod 333 and a spring 334. The first piston 332 is slidably arranged in the air cylinder 331, and the tightening rod 333 is installed at the bottom of the first piston 332, and the bottom end of the tightening rod 333 slides through the bottom of the air cylinder 331 and the top of the limit block 31 and extends into the limit hole 32. A spring 334 is sleeved on the tightening rod 333, and the two ends of the spring 334 are respectively connected to the first piston 332 and the bottom of the air cylinder 331, and the two ends of the shunt pipe 34 are respectively connected to the top ends of the two air cylinders 331.

[0061] It should be noted that: when the gas enters the top of the gas cylinder 331 through the shunt pipe 34, the first piston 332 is pushed downward, driving the clamping rod 333 to further extend into the limiting hole 32, applying a greater clamping force to the pipe fitting 101. The spring 334 has a certain supporting effect on the first piston 332 in the initial state. When the gas pressure disappears, it can assist the first piston 332 to return to its original position, which is convenient for the next operation. This structure can achieve elastic clamping of the pipe fitting 101, which can not only ensure the stability of the pipe fitting 101 during the cutting process, but also avoid damage to the pipe fitting 101 caused by excessive squeezing, thereby extending the service life of the pipe fitting 101 and improving the reliability and operational convenience of the device.

[0062] like Figure 1 and Fig.10As shown, in this embodiment, the cutting component 2 includes two sliding seats 21, a sliding mouth 22, a knife seat 23, a slider 24, an electric push rod 25, a roller cutter 26 and a second motor 27. The two sliding seats 21 are arranged between the two limit assemblies 3. The two sliding seats 21 are each provided with a through and vertically arranged sliding mouth 22. The knife seat 23 is arranged between the two sliding seats 21. Slide blocks 24 are installed at both ends of the knife seat 23. The two sliders 24 are respectively slidably matched with the two sliding mouths 22. An electric push rod 25 is installed on the top of the sliding seat 21. The slider 24 is connected to the electric push rod 25 and is driven by the electric push rod 25 to reciprocate along the sliding mouth 22. The knife seat 23 is provided with a roller cutter 26 located at its bottom and a second motor 27 that drives the roller cutter 26 to rotate.

[0063] It should be noted that the electric push rod 25 drives the knife seat 23 to move up and down through the cooperation of the slider 24 and the slide 22, and adjusts the height position of the roller 26 so that it can accurately align with the cutting position of the pipe 101. The second motor 27 drives the roller 26 to rotate, and the rotation and downward pressure of the roller 26 are used to realize the cutting operation of the pipe 101. The two sliding seats 21 provide stable guidance and support for the movement of the knife seat 23. This structural design can control the position and movement of the roller 26 to realize the cutting operation, improve the cutting efficiency and quality, and reduce burrs and deformation during the cutting process.

[0064] like Figure 1 , Figure 2 and Fig.10 As shown, in this embodiment, a first fixed block 102 and a second fixed block 103 are respectively installed on both sides of the two limit blocks 31, a screw 104 is rotatably installed between the two first fixed blocks 102, a first motor 105 is installed on one first fixed block 102, the output end of the first motor 105 is connected to one end of the screw 104, a limit rod 106 is fixed between the two second fixed blocks 103, a sliding seat 21 is threadedly matched with the screw 104, and the other sliding seat 21 is slidably matched with the limit rod 106.

[0065] It should be noted that: the first motor 105 drives the screw 104 to rotate, and the sliding seat 21 that is threadedly matched with the screw 104 will move axially under the rotation of the screw 104, and the other sliding seat 21 that is slidably matched with the limit rod 106 plays a stabilizing and guiding role, thereby realizing the horizontal movement of the cutting component 2 as a whole between the two limit components 3 and adjusting the cutting position. Through this transmission method, the position of the cutting component 2 can be adjusted to meet the cutting requirements of pipes 101 of different lengths, thereby improving the flexibility and applicability of the device.

[0066] like Figure 1 and Figure 2As shown, in this embodiment, the driving assembly 5 includes an electric slide rail 51 and an assembly block 52. The electric slide rail 51 is installed on the base 1. The driving end of the electric slide rail 51 is installed with the assembly block 52. The second tube 441 is installed on the assembly block 52.

[0067] The driving member includes a cylinder 45 , which is mounted on the assembly block 52 and located at an end of the second tube body 441 away from the first tube body 4 . The fourth piston 443 is connected to the cylinder 45 and driven by the cylinder 45 to reciprocate in the second tube body 441 .

[0068] It should be noted that the electric slide rail 51 realizes the linear movement of the first tube body 4 by driving the assembly block 52, thereby adjusting the position of the sac-type power-on component 41 in the pipe 101. The cylinder 45 serves as a driving component to provide power for the movement of the push-pull component 42 and the air-pushing component 44, pushing the fourth piston 443 to move in the second tube body 441, thereby realizing the pushing of the electrorheological fluid in the liquid chamber and the delivery of gas to the limit component 3. This driving method can accurately control the movement of each component, ensure the stability and reliability of the device operation, and improve the degree of automation and accuracy of the cutting operation.

[0069] A method for cutting a refrigerant pipe for installing an air conditioner, using the above-mentioned refrigerant pipe cutting device for installing an air conditioner, comprises the following steps:

[0070] Step 1: Place the pipe 101. First, insert the two ends of the pipe 101 into the two limit assemblies 3 respectively;

[0071] Step 2: Adjust the cutting position of the cutting component 2 on the pipe 101, and drive the cutting component 2 to move between the two limit components 3 through the driver as needed, and move the cutting component 2 to the cutting position of the pipe 101;

[0072] Step 3: adjust the position of the capsule-type power supply component 41 on the first tube body 4 in the tube 101, and drive the first tube body 4 to move in the tube 101 through the driving component 5, so that the capsule-type power supply component 41 on the first tube body 4 moves to the front end of the cutting position of the tube 101;

[0073] Step 4: Electrorheological fluid is introduced into the capsule-type power-on component 41, and the push-pull component 42 is driven by the driving member to move in the first tube body 4. The push-pull component 42 pushes the electrorheological fluid in the liquid chamber into the capsule-type power-on component 41. At this time, the capsule-type power-on component 41 is powered on, and the electrorheological fluid entering the capsule-type power-on component 41 will gradually harden, so that the capsule-type power-on component 41 can fit closely to the inner wall of the pipe 101, thereby forming a uniform support layer after power is turned on. When the push-pull component 42 moves in the gas chamber, external gas enters it along the blowing pipe 43;

[0074] Step 5: Fix the pipe 101. When the driving member drives the push-pull assembly 42 to move, the air pushing member 44 can be driven to guide the gas into the ventilation and tightening member 33. The ventilation and tightening member 33 can tighten the pipe 101 under the gas pressure.

[0075] Step six, cutting the pipe fitting 101 , and finally performing a cutting operation on the pipe fitting 101 through the cutting component 2 .

[0076] The working principle of the present invention is as follows:

[0077] First, insert the two ends of the pipe 101 into the limiting holes 32 of the two limiting components 3 respectively, and preliminarily position the pipe 101 through the limiting block 31. Then, according to the required cutting length, start the first motor 105 to drive the screw 104 to rotate, so that the sliding seat 21 threadedly matched with the screw 104 drives the cutting component 2 to move between the two limiting components 3, and adjust the roller 26 to the cutting position of the pipe 101. Then, the electric slide rail 51 drives the assembly block 52 to move, thereby driving the first pipe body 4 to move between the pipe 101. The bladder-type electrification component 41 moves inside the tube 101, so that the bladder-type electrification component 41 reaches the front end of the cutting position of the tube 101. After that, the cylinder 45 pushes the push-pull rod 422, and the push-pull rod 422 drives the second piston 423 to push the electrorheological fluid in the liquid chamber into the bladder body 411. At the same time, the third piston 424 moves to change the pressure of the gas chamber, and the external gas enters the gas chamber through the blowing pipe 43. Then, the wire 412 is electrified, and the electrorheological fluid hardens, so that the bladder body 411 is closely attached to the inner wall of the tube 101 to form a supporting layer. During the movement of the push-pull rod 422, The fourth piston 443 is driven to move in the second tube body 441 by the connecting rod 442, and the gas is delivered to the ventilation and tightening member 33 through the air guide pipe 444 and the shunt pipe 34, pushing the first piston 332 to move downward, and the tightening rod 333 further presses the pipe 101. Finally, the second motor 27 is started to drive the roller 26 to rotate, and the electric push rod 25 pushes the slider 24 to move downward along the sliding mouth 22, so that the roller 26 cuts the pipe 101. After the cutting is completed, the wire 412 is powered off, and the cylinder 45 drives the push rod 25 to drive the roller 26 to cut the pipe 101. The pulling assembly 42 returns to its original position, and the electrorheological fluid in the bladder 411 flows back to the liquid chamber. The gas in the gas chamber is blown to the end of the bladder-type energized assembly 41 through the blowing pipe 43 to blow away dust and waste. The ventilation fastener 33 returns to its original position under the action of the spring 334, making it easy to take out the cut pipe 101 and perform the next operation. The whole process achieves efficient cutting of the refrigerant pipe through the coordinated action of various components, and effectively prevents deformation of the pipe 101 during the cutting process. It also has the advantages of automatic cleaning and convenient operation.

[0078] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A refrigerant pipe cutting device for air conditioner installation, characterized in that: It comprises a base (1), a pipe (101), a cutting component (2) and two limiting components (3): The cutting component (2) and the two limiting components (3) are arranged on the base (1) in sequence, the pipe (101) is limited between the two limiting components (3), and the cutting component (2) is placed between the two limiting components (3) and cuts the pipe (101); The base (1) is provided with a first tube body (4) extending into the tube (101) and a driving assembly (5) for driving the first tube body (4) to move along the tube (101); a push-pull assembly (42) is installed in the first tube body (4), and the push-pull assembly (42) divides the first tube body (4) into independent liquid chambers and gas chambers; the end of the first tube body (4) is connected to a sac-type power supply assembly (41) in communication with the liquid chamber, the liquid chamber is filled with electrorheological fluid, and the first tube body (4) is connected to an air blowing pipe (43) in communication with the gas chamber and arranged toward the sac-type power supply assembly (41); The driving assembly (5) is provided with a driving member for driving the push-pull assembly (42) to move back and forth in the first tube body (4).

2. A refrigerant pipe cutting device for air conditioner installation according to claim 1, characterized in that: The push-pull assembly (42) comprises a partition block (421), a push-pull rod (422), a second piston (423) and a third piston (424); the partition block (421) is installed in the middle of the first tube body (4); the liquid chamber and the gas chamber are separated by the partition block (421); a push-pull rod (422) is slidably connected in the middle of the partition block (421); one end of the push-pull rod (422) is installed with the second piston (423) located in the liquid chamber, and the other end is installed with the third piston (424) located in the gas chamber.

3. A refrigerant pipe cutting device for air conditioner installation according to claim 2, characterized in that: The capsule-type power supply component (41) comprises a capsule body (411) and a wire (412); the capsule body (411) is connected to the end of the first tube body (4); a cavity communicating with the liquid chamber is provided in the capsule body (411); and the wire (412) is arranged in the cavity.

4. A refrigerant pipe cutting device for air conditioner installation according to claim 3, characterized in that: One end of the first tube body (4) away from the sac-type power supply component (41) is connected to an air pusher (44) in communication with the limit component (3); The air pusher (44) includes a second tube body (441), a connecting rod (442), a fourth piston (443) and an air guide tube (444). The second tube body (441) is connected to an end of the first tube body (4) away from the sac-type power supply component (41), and the first tube body (4) and the second tube body (441) are not connected. A fourth piston (443) is slidably arranged in the second tube body (441). The end of the fourth piston (443) is connected to a connecting rod (442). An end of the connecting rod (442) away from the fourth piston (443) slides through the first tube body (4) and is connected to the third piston (424). An end of the second tube body (441) close to the first tube body (4) is connected to an air guide tube (444). The air guide tube (444) is connected to the limit assembly (3). The fourth piston (443) is driven by a driving member to reciprocate in the second tube body (441).

5. A refrigerant pipe cutting device for air conditioner installation according to claim 4, characterized in that: The limiting assembly (3) comprises a limiting block (31), a limiting hole (32), a ventilating fastening member (33) and a shunt pipe (34); the two limiting blocks (31) are both mounted on the base (1); the two limiting blocks (31) are both provided with a through limiting hole (32); the two ends of the pipe (101) are respectively inserted into the two limiting holes (32); the two limiting blocks (31) are both provided with a ventilating fastening member (33) for limiting the position of the pipe (101); the two ventilating fastening members (33) are connected via the shunt pipe (34); and the air guide pipe (444) is connected to the shunt pipe (34).

6. A refrigerant pipe cutting device for air conditioner installation according to claim 5, characterized in that: The ventilation and tightening member (33) comprises an air cylinder (331), a first piston (332), a tightening rod (333) and a spring (334); the first piston (332) is slidably arranged in the air cylinder (331); the bottom of the first piston (332) is provided with a tightening rod (333); the bottom end of the tightening rod (333) slides through the bottom of the air cylinder (331) and the top of the limit block (31) and extends into the limit hole (32); a spring (334) is sleeved on the tightening rod (333); the two ends of the spring (334) are respectively connected to the first piston (332) and the bottom of the air cylinder (331); the two ends of the shunt pipe (34) are respectively connected to the top ends of the two air cylinders (331).

7. The refrigerant pipe cutting device for air conditioner installation according to claim 1, characterized in that: The cutting assembly (2) comprises two sliding seats (21), a sliding opening (22), a knife seat (23), a slider (24), an electric push rod (25), a rolling cutter (26) and a second motor (27). The two sliding seats (21) are arranged between the two limiting assemblies (3). The two sliding seats (21) are each provided with a sliding opening (22) which is through and vertically arranged. The knife seat (23) is arranged between the two sliding seats (21). Slide blocks (24) are installed at both ends of the knife seat (23). The two slide blocks (24) are respectively slidably matched with the two sliding openings (22). An electric push rod (25) is installed at the top of the sliding seat (21). The slider (24) is connected to the electric push rod (25) and is driven by the electric push rod (25) to reciprocate along the sliding opening (22). The knife seat (23) is provided with a rolling cutter (26) located at the bottom thereof and a second motor (27) for driving the rolling cutter (26) to rotate.

8. The refrigerant pipe cutting device for air conditioner installation according to claim 7, characterized in that: A first fixed block (102) and a second fixed block (103) are respectively installed on both sides of the two limit blocks (31); a screw rod (104) is rotatably installed between the two first fixed blocks (102); a first motor (105) is installed on one of the first fixed blocks (102); an output end of the first motor (105) is connected to one end of the screw rod (104); a limit rod (106) is fixed between the two second fixed blocks (103); one of the sliding seats (21) is threadedly matched with the screw rod (104); and the other sliding seat (21) is slidably matched with the limit rod (106).

9. A refrigerant pipe cutting device for air conditioner installation according to claim 8, characterized in that: The driving assembly (5) comprises an electric slide rail (51) and an assembly block (52); the electric slide rail (51) is mounted on the base (1); the driving end of the electric slide rail (51) is mounted with the assembly block (52); and the second tube body (441) is mounted on the assembly block (52); The driving member comprises a cylinder (45), wherein the cylinder (45) is mounted on the assembly block (52) and is located at an end of the second tube body (441) away from the first tube body (4), and the fourth piston (443) is connected to the cylinder (45) and is driven by the cylinder (45) to reciprocate in the second tube body (441).

10. A method for cutting a refrigerant tube for installing an air conditioner, using the refrigerant tube cutting device for installing an air conditioner as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Place the pipe (101), inserting the two ends of the pipe (101) into the two stopper assemblies (3) respectively; Step 2: adjusting the cutting position of the cutting component (2) on the pipe (101), and driving the cutting component (2) to move between the two limit components (3) as needed by a driver, so as to move the cutting component (2) to the cutting position of the pipe (101); Step 3: adjusting the position of the capsule-type power supply component (41) on the first tube body (4) in the tube (101), and driving the first tube body (4) to move in the tube (101) by the driving component (5), so that the capsule-type power supply component (41) on the first tube body (4) moves to the front end of the cutting position of the tube (101); Step 4: introducing electrorheological fluid into the capsule-type power-carrying component (41), and driving the push-pull component (42) to move in the first tube body (4) through the driving member, so that the push-pull component (42) pushes the electrorheological fluid in the liquid chamber into the capsule-type power-carrying component (41). At this time, the capsule-type power-carrying component (41) is energized, and the electrorheological fluid entering the capsule-type power-carrying component (41) gradually hardens, so that the capsule-type power-carrying component (41) can fit tightly against the inner wall of the tube (101), thereby forming a uniform supporting layer after being energized. When the push-pull component (42) moves in the gas chamber, external gas enters it along the blowing pipe (43); Step 5: Fix the pipe (101), and when the driving member drives the push-pull assembly (42) to move, the air pushing member (44) can be driven to guide the gas into the ventilation and tightening member (33). The ventilation and tightening member (33) can tighten the pipe (101) under the gas pressure; Step 6: Cutting the pipe (101). Finally, the pipe (101) is cut by the cutting assembly (2).

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