Stainless steel one-way valve for air conditioner pipeline and production device thereof

Abstract

The invention relates to the technical field of one-way valves, in particular to a stainless steel one-way valve for an air conditioner pipeline and a production device thereof.The stainless steel one-way valve comprises a shell, a positioning piece fixedly connected to the interior of the shell through deformation of the shell, a valve seat fixedly connected to the interior of the shell, and a valve element slidably arranged in the positioning piece; the interior of the shell is sealed by matching with the valve seat; wherein the shell deforms to form a protruding ring which is concave inwards, the positioning piece is fixedly connected to the interior of the shell through the protruding ring, and a guide groove is formed in the positioning piece; the beneficial effects of the invention are that the positioning member is fixed in the housing through the convex ring which is formed by the deformation of the housing and is recessed inwards, that is to say, the positioning member can be mounted without using an auxiliary mounting member, and the structural complexity is reduced, so that the assembly difficulty is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of check valves, and particularly to a stainless steel check valve for air-conditioning pipelines and a production device thereof. Background Art

[0002] In an air-conditioning refrigeration system, as a key control component, the check valve is mainly used to prevent the reverse flow of refrigerant when the compressor stops or the system pressure changes, thereby ensuring the stable operation of the refrigeration cycle, improving the system energy efficiency, and protecting key components (such as the compressor) from the impact of backflow. Currently, the common stainless steel check valves for air-conditioning pipelines on the market usually adopt a high-precision structure design, and their sealing, positioning, and fixing functions highly rely on various auxiliary installation parts, such as O-rings, gaskets, clamps, positioning pins, etc. Although such valve bodies perform excellently in terms of control accuracy and sealing performance, due to their complex structures and numerous components, the assembly process is cumbersome, the labor cost is high, the production efficiency is low, and at the same time, the overall manufacturing cost of the valve body is increased.

[0003] In addition, in a common household or commercial air-conditioning pipeline system, the core function of the check valve is mainly to achieve the one-way flow of the medium, and the system has no strict requirements for the dynamic response speed and flow regulation accuracy of the valve body. However, the existing check valves generally follow the design concept of industrial-grade high-precision valve bodies. Such valves need to meet national standards during the design and production process. However, in order to meet the requirements such as sealing performance and pressure resistance in the standards, they often overly rely on complex structures and precision components, and adopt complex solutions such as multi-stage sealing and precision guiding structures, resulting in redundant functions, high costs, and low assembly efficiency. This not only increases the material cost, but also makes the assembly process of the valve body more complex and the production efficiency difficult to improve. For example, in order to meet the requirement of "sealing test leakage rate ≤ 0.1%", manufacturers generally adopt industrial-grade sealing solutions (such as the double insurance of metal hard seal + soft seal), while in fact, a single-layer soft seal can meet the requirements of the household air-conditioning working conditions (low pressure, low impurities); at the same time, due to the high requirements of the valve body structure for the processing accuracy and assembly accuracy of components, the investment and maintenance costs of the corresponding production equipment also increase accordingly, further pushing up the manufacturing cost of the check valve.

[0004] Therefore, there is a need for a stainless steel check valve for air-conditioning pipelines and a production device thereof to overcome the above problems. Summary of the Invention

[0005] In order to solve the above problems, the embodiments of the present invention provide a stainless steel check valve for air-conditioning pipelines and a production device thereof, achieving the purpose of solving the problems raised in the background art.

[0006] In order to achieve the above object, the embodiments of the present invention specifically adopt the following technical solutions: A stainless steel one-way valve for an air-conditioning pipeline, comprising: a housing, a positioning member fixedly connected to the inside of the housing by the deformation of the housing, a valve seat fixedly connected to the inside of the housing, and a valve core slidably disposed inside the positioning member to cooperate with the valve seat to form a seal inside the housing; wherein, the housing deforms to form a convex ring that is recessed inward, the positioning member is fixedly connected to the inside of the housing through the convex ring, and a guiding groove is formed inside the positioning member.

[0007] The positioning member is fixed inside the housing by the deformation of the housing itself, reducing the use of auxiliary installation parts, thereby reducing the manufacturing cost and assembly difficulty.

[0008] In order to achieve the purpose of the valve core cooperating with the valve seat for sealing, the valve core is a conical cover body, and an inclined protrusion is integrally formed inside the valve seat; the conical cover body of the valve core and the inclined protrusion on the valve seat cooperate to form a conical surface seal.

[0009] In order to improve the sliding stability of the valve core inside the positioning member, a guiding column is fixedly connected inside the valve core, and the guiding column is slidably disposed in the guiding groove inside the positioning member; the valve core slides inside the guiding groove through the guiding column, thereby improving the sliding stability of the valve core.

[0010] Furthermore: A welding ring is sleeved outside the valve seat, and the valve seat is fixedly connected to the inside of the housing through the welding ring.

[0011] Furthermore: The housing deforms to form a reduced-diameter portion for restricting the position of the positioning member and an installation groove for installation.

[0012] The embodiments of the present invention also propose a production device for a stainless steel one-way valve for an air-conditioning pipeline, comprising: a bottom plate, a spinning mechanism, a fixing housing for fixing the positioning member by spinning the housing to form a convex ring, and a supporting and positioning mechanism for feeding and positioning the positioning member inside the housing; wherein, the supporting and positioning mechanism is designed to detect the positioning member when feeding the positioning member into the housing.

[0013] The housing is spun by the spinning mechanism, thereby fixing the positioning member inside the housing.

[0014] In order to achieve the purpose of spinning the housing when fixing the housing, the spinning mechanism comprises: a main body disposed on the bottom plate, a spinning wheel rotatably disposed inside the main body and moved by a hydraulic push rod, a hydraulic jaw for clamping and fixing the housing, and a supporting block disposed on the hydraulic jaw to support the housing.

[0015] To achieve the purpose of feeding the positioning member into the housing, the support and positioning mechanism includes: a base block disposed on the bottom plate, a feeding groove disposed on the base block for storing the positioning member, a feeding chute communicating with the feeding groove, and a feeding mechanism for feeding and positioning the positioning member inside the feeding groove into the housing.

[0016] To achieve the purpose of feeding and positioning the positioning member inside the feeding groove into the housing, the feeding mechanism includes: a pushing block slidably disposed inside the feeding groove to push the positioning member to move into the housing, and a guiding rod slidably disposed inside the pushing block and capable of passing through the inside of the guiding groove.

[0017] A detection groove for cooperating with the guiding rod is formed inside the support block.

[0018] The beneficial effects of the embodiments of the present invention are as follows:

[0019] The positioning member is fixed inside the housing by a protruding ring formed by the deformation of the housing and recessed inward, that is, no auxiliary installation member is required for the installation of the positioning member, reducing the structural complexity and thus the assembly difficulty.

[0020] A guiding column is fixedly connected inside the valve core, and the guiding column is slidably disposed in the guiding groove inside the positioning member. The sliding of the valve core is limited by the cooperation of the guiding column and the guiding groove, improving the sliding stability of the valve core.

[0021] The production device proposed in the present application directly fixes the positioning member through the protruding ring formed by the deformation of the housing by spinning, and can reliably fix the positioning member inside the housing without the aid of auxiliary parts, thus simplifying the structural design of the production device, reducing the requirements for assembly accuracy, and at the same time reducing the maintenance cost of the production device.

[0022] The guiding rod designed in the present application has the characteristics of multi-functional integration: firstly, it can be used as a guiding element to accurately guide the positioning member to move along the guiding rod into the housing during the assembly process; secondly, it has a centering detection function, and the position alignment of the spinning mechanism and the support and positioning mechanism is verified by inserting it into the detection groove; at the same time, it can also achieve quality detection. When the guiding groove of the positioning member is deformed, the pushing action of the guiding rod will automatically eject the defective product out of the feeding groove. This multi-functional integrated design significantly improves the practical value of the guiding rod, simplifies the equipment structure, and realizes the triple functions of guiding, centering detection and quality control, effectively optimizing the reliability and efficiency of the production process. Description of the Drawings

[0023] Figure 1 It is a cross-sectional schematic view of the present invention;

[0024] Figure 2 It is an exploded view of the structure of the present invention;

[0025] Figure 3 Structural schematic diagram of the first perspective of the present invention;

[0026] Figure 4 Structural schematic diagram of the second perspective of the present invention;

[0027] Figure 5 Cross-sectional schematic diagram of the present invention;

[0028] Figure 6 Cross-sectional schematic diagram of the support and positioning mechanism of the present invention.

[0029] In the figure: 1, outer shell; 2, positioning member; 3, valve seat; 4, valve core; 5, inclined protrusion; 6, guide post; 7, welding ring; 8, protruding ring; 9, reduced diameter part; 10, installation groove; 11, first spring; 12, guide groove; 13, bottom plate; 14, spinning mechanism; 15, support and positioning mechanism; 16, feeding mechanism; 17, detection groove; 18, positioning assembly;

[0030] 141, main body; 142, spinning wheel; 143, hydraulic push rod; 144, hydraulic jaw; 145, support block;

[0031] 151, base block; 152, feeding groove; 153, loading groove;

[0032] 161, pushing block; 162, guide rod;

[0033] 181, groove; 182, clamping block; 183, second spring. Specific embodiments

[0034] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0035] See Figure 1-2 , the embodiment of the present invention discloses a stainless steel one-way valve for air-conditioning pipelines, including an outer shell 1, a positioning member 2 is fixedly connected inside the outer shell 1, a valve core 4 is slidably connected inside the positioning member 2, and the valve core 4 cooperates with a fixed valve seat 3 inside the outer shell 1 to form a seal;

[0036] The one-way valve in this application adopts a conical sealing structure, which is mainly composed of a conical cover body valve core 4 and a valve seat 3 with an inclined protrusion 5. The inclined protrusion 5 integrally formed on the inner wall of the valve seat 3 cooperates with the conical cover body valve core 4 to form a sealing surface. Its working principle is as follows: When the medium flows in from the outside of the conical cover body valve core 4, the fluid pressure pushes the valve core 4 away from the valve seat 3 to open the valve; when the medium flows in the reverse direction, the fluid thrust and the pressure difference generated by the flow through the gap between the valve core 4 and the valve seat 3 act together to promote the valve core 4 to move towards the valve seat 3, and finally the conical cover body valve core 4 is closely attached to the inclined protrusion 5 to form a reliable conical surface seal. This structure automatically controls the opening and closing of the valve by changing the direction of the medium flow, achieving excellent sealing effects while ensuring the one-way flow function.

[0037] See Figure 1 , the positioning member 2 is fixed inside the housing 1 through a convex ring 8 formed by the deformation of the housing 1 inwardly, that is, no auxiliary installation parts are required for the installation of the positioning member 2, reducing the structural complexity and thus the assembly difficulty.

[0038] See Figure 1 , the housing 1 deforms to form a reduced-diameter portion 9 and an installation groove 10; the diameter change is formed through the reduced-diameter portion 9 to limit the positioning member 2, that is, when the positioning member 2 is placed inside the housing 1 for installation, the positioning member 2 is position-limited by the reduced-diameter portion 9, and then the housing 1 can be squeezed to form a convex ring 8 to fix the positioning member 2. The installation groove 10 on the housing 1 is used to connect the housing 1 to the air-conditioning pipeline, that is, the valve body proposed in this application is fixed to the air-conditioning pipeline through the installation groove 10.

[0039] See Figure 1 , a guide post 6 is fixedly connected inside the valve core 4, and the guide post 6 is slidably arranged in the guide groove 12 inside the positioning member 2. The sliding of the valve core 4 is limited through the cooperation of the guide post 6 and the guide groove 12, improving the sliding stability of the valve core 4.

[0040] As an alternative embodiment of this application:

[0041] A first spring 11 is arranged outside the guide post 6, so that the first spring 11 is located between the positioning member 2 and the valve core 4. When the medium flows in from the outside of the conical cover body valve core 4, the fluid pressure overcomes the spring force of the first spring 11 to push the valve core 4 away from the valve seat 3 to open the valve; when the medium flows in the reverse direction, the fluid thrust, the spring force of the first spring 11 and the pressure difference generated by the flow through the gap between the valve core 4 and the valve seat 3 act together to promote the valve core 4 to move towards the valve seat 3, and finally the conical cover body valve core 4 is closely attached to the inclined protrusion 5 to form a reliable conical surface seal;

[0042] Meanwhile, when the medium flows in from the outside of the conical cover valve core 4 and pushes the conical cover valve core 4 to move, the first spring 11 can be used for shock absorption, making the movement of the valve core 4 smoother.

[0043] See Figure 1 , a welding ring 7 is sleeved outside the valve seat 3, and the welding ring 7 is welded inside the valve seat 3. The valve seat 3 and the housing 1 are connected through the welding ring 7, improving the sealing performance between the valve seat 3 and the housing 1.

[0044] See Figures 3-5 , the embodiment of the present invention discloses a production device for a stainless steel one-way valve used in an air-conditioning pipeline, including: a bottom plate 13, a spinning mechanism 14 arranged on the bottom plate 13, and a support and positioning mechanism 15 arranged on the bottom plate 13. While fixing the fixed housing 1, the spinning mechanism 14 spins the housing 1 so that the housing 1 deforms to form a protruding ring 8 to fix the positioning member 2.

[0045] The production device proposed in this application directly fixes the positioning member 2 through the protruding ring 8 formed by the deformation of the spun housing 1. Without the aid of auxiliary parts, reliable fixation of the positioning member 2 inside the housing 1 can be achieved, thus simplifying the structural design of the production device, reducing the requirement for assembly accuracy, and at the same time reducing the maintenance cost of the production device.

[0046] See Figures 3-5 , which shows an embodiment of the spinning mechanism 14 proposed by the present invention. The spinning mechanism 14 includes a main body 141 arranged on the bottom plate 13, a spinning wheel 142 rotatably arranged on the main body 141, and a hydraulic jaw 144 arranged on the main body 141. The housing 1 is clamped and fixed by the hydraulic jaw 144. Subsequently, the hydraulic jaw 144 drives the housing 1 to rotate. At the same time, the spinning wheel 142 slowly moves under the push of the hydraulic push rod 143, and the housing 1 can be spun by the spinning wheel 142 to form a protruding ring 8.

[0047] A support block 145 is installed on the hydraulic jaw 144, and the housing 1 is sleeved outside the support block 145. Since the housing 1 is made of stainless steel with a relatively thin thickness, during the clamping process of the hydraulic jaw 144, the support block 145 can effectively support the inside of the housing 1, preventing the housing 1 from deforming due to the clamping force of the hydraulic jaw 144.

[0048] See Figures 3-5 , which shows an embodiment of the support and positioning mechanism 15 proposed by the present invention. The support and positioning mechanism 15 includes a base block 151 arranged on the bottom plate 13, a feeding groove 152 opened inside the base block 151, and a feeding groove 153 opened inside the base block 151 and communicating with the feeding groove 152; a feeding mechanism 16 arranged inside the feeding groove 152.

[0049] The positioning part 2 is added into the interior of the feeding trough 152 through the loading trough 153, and then the feeding mechanism 16 is used to send the positioning part 2 into the interior of the housing 1;

[0050] The cavity profile of the loading trough 153 matches the outer shape of the positioning part 2. When the positioning part 2 is placed into the loading trough 153, an automatic detection function can be achieved through the matching relationship between the two: if the positioning part 2 is deformed so that its projected dimension exceeds the accommodation range of the loading trough 153, it cannot smoothly enter the trough. It should be noted that this detection mechanism is only applicable to the case where the outer dimension of the positioning part 2 increases after deformation, and other forms of deformation cannot be recognized.

[0051] See Figure 5 , which shows the feeding mechanism 16 proposed by the present invention. The feeding mechanism 16 includes a pusher block 161 slidably arranged inside the feeding trough 152, and a guide rod 162 slidably arranged inside the pusher block 161;

[0052] First, push the guide rod 162 to make it pass through the guide groove 12 of the positioning part 2 until the front end of the guide rod 162 is completely fitted with the support block 145; then drive the pusher block 161 to push the positioning part 2 to move along the guide rod 162, and accurately send the positioning part 2 into the interior of the housing 1; when the positioning part 2 reaches the reduced-diameter part 9, its movement automatically stops and accurate positioning is achieved, thus completing the assembly process of the positioning part 2. This process realizes automatic positioning through mechanical limit, ensuring the assembly accuracy and reliability.

[0053] When the pusher block 161 sends the positioning part 2 into the interior of the housing 1, it can support the housing 1, that is, support both ends of the housing 1 through the pusher block 161 and the support block 145, so as to prevent deformation when the housing 1 is spin-pressed.

[0054] When pushing the guide rod 162 to pass through the guide groove 12 of the positioning part 2, if the guide groove 12 is deformed, the guide rod 162 will be blocked and cannot pass through normally. At this time, the pushing force of the guide rod 162 will eject the positioning part 2 from the feeding trough 152. This action forms a clear fault indication - as long as it is observed that the positioning part 2 is ejected from the feeding trough 152 during the process of pushing the guide rod 162, it can be determined that there is a deformation problem with the guide groove 12 of the positioning part, and a qualified part needs to be replaced. This mechanical detection mechanism realizes the automatic screening of part quality during the production process.

[0055] A rubber layer can be arranged inside the feeding trough 152 to increase the friction between the positioning part 2 and the feeding trough 152, so as to prevent the guide rod 162 from ejecting the positioning part 2 from the interior of the feeding trough 152 after slight friction between the guide rod 162 and the guide groove 12.

[0056] Inside the feed chute 152, a positioning component 18 is provided. The positioning component 18 includes a groove 181 opened inside the main body 141 and communicating with the feed chute 152, a clamping block 182 slidably arranged inside the groove 181, and a second spring 183 arranged inside the groove 181. After the positioning member 2 is added into the feed chute 152 through the loading chute 153, one end of the positioning member 2 is supported by the clamping block 182. When the pushing block 161 moves, the clamping block 182 can be pressed into the inside of the groove 181 through the inclined surface of the clamping block 182. After the pushing block 161 resets, the clamping block 182 resets under the action of the second spring 183, so that the clamping block 182 supports the next positioning member 2.

[0057] A notch is provided on the clamping block 182, which facilitates the support of the positioning member 2 through the notch.

[0058] See Figure 5 , a detection groove 17 that cooperates with the guide rod 162 is opened inside the support block 145. When the guide rod 162 moves to the position of the support block 145 and successfully inserts into the detection groove 17, it indicates that the spinning mechanism 14 and the support positioning mechanism 15 are in an accurately aligned state, and the equipment can be used normally; otherwise, if the guide rod 162 cannot be inserted into the detection groove 17, it prompts that there is a position deviation between the two mechanisms, and at this time, maintenance and calibration need to be carried out in time. This design realizes the rapid diagnosis of the centering state of the equipment through simple mechanical plug-in detection, effectively ensuring the assembly accuracy and equipment reliability.

[0059] The guide rod 162 designed in this application has the characteristics of multiple function integration: firstly, it can be used as a guiding element to accurately guide the positioning member 2 to move along the guide rod 162 into the housing 1 during the assembly process; secondly, it has the function of centering detection, and verifies whether the positions of the spinning mechanism 14 and the support positioning mechanism 15 are aligned by inserting into the detection groove 17; at the same time, it can also realize quality detection. When the guide groove 12 of the positioning member 2 is deformed, the pushing action of the guide rod 162 will automatically push out the defective product from the feed chute 152. This multi-functional integrated design significantly improves the practical value of the guide rod 162, simplifies the equipment structure, and realizes the triple functions of guiding, centering detection and quality control, effectively optimizing the reliability and efficiency of the production process.

[0060] Its value is particularly prominent in the following application scenarios:

[0061] 1. Optimization of the assembly process, integration of high-precision guiding and positioning;

[0062] The traditional check valve assembly needs to complete the guiding and centering of the positioning member 2 and the housing 1 step by step, and relies on manual visual alignment, with cumbersome steps and low error tolerance;

[0063] The guide rod 162 in this application automatically guides the positioning member 2 to enter the housing 1 along a preset path when inserting into the valve body, without the need for additional guiding jigs;

[0064] Enable the guiding and positioning to be completed synchronously, reducing the assembly time by more than 30% (for example, a certain manufacturer originally needed to operate in three steps at three workstations, but now it can be completed at one workstation; the fit tolerance between the guiding rod 162 and the detection groove 17 is ≤0.02 mm, avoiding skewness caused by manual intervention (the measured defective rate has dropped from 5% to 0.3%).

[0065] 2. Centering detection, and real-time correction of the position of the spinning mechanism;

[0066] For the spinning forming of the valve body sealing surface, it is necessary to ensure that the spinning wheel 142 is absolutely coaxial with the housing 1. The traditional method requires shutdown for detection, which affects production;

[0067] In this application, when the guiding rod 162 is inserted, a clearance fit is formed between its end and the detection groove 17 of the spinning mechanism 14. If not aligned, the guiding rod 162 cannot be fully inserted, and it is detected as non-coaxial;

[0068] Enable the production and detection to be completed synchronously, and the coaxiality of the spinning wheel 142 and the housing 1 can be real-time feedback during operation, reducing the shutdown detection time.

[0069] 3. Quality screening, automatically rejecting deformed workpieces;

[0070] The guiding groove 12 is prone to deformation during stamping or heat treatment. The traditional manual detection has low efficiency and a high missed detection rate (about 2%);

[0071] In this application, when the guiding rod 162 is advanced, if the guiding groove 12 of the positioning part 2 is deformed, a radial component force will be generated on its contact surface with the guiding rod 162, ejecting the defective product into the feeding groove 152;

[0072] Realize the synchronous completion of production and quality inspection, without the need for an additional quality inspection workstation. By automatically rejecting deformed workpieces, it is avoided to flow into the subsequent seal test link.

[0073] This solution integrates the traditional multi-step operations of guiding, detection, and quality inspection into a single operation, that is, only during the production operation, the synchronous completion of guiding, detection, and quality inspection can be achieved, reducing the production process, improving production efficiency, and reducing the missed detection rate of defective products. At the same time, the required equipment is simplified, and the floor space of the overall production equipment is reduced.

[0074] Although the design of the multi-functional integrated guide rod 162 of the present application significantly improves the accuracy and efficiency of one-way valve assembly, it is more suitable for semi-automated or highly flexible production scenarios rather than traditional fully automated large-scale production lines. This is because the functional integration results in complex automated action sequences. Traditional automated equipment relies on step-by-step standardized actions (first guiding → then detecting → finally sorting), while the guide rod of this solution needs to synchronously complete three functions in a single push, which requires extremely high motion control and sensor feedback speed for the equipment. Moreover, automated production has strict requirements for workpiece consistency. Fully automated production requires highly unified workpiece tolerances (such as the diameter fluctuation of the valve body guide groove ≤ 0.01 mm), while this solution relies on the passive interaction between the guide rod 162 and the workpiece (such as deformation and ejection). If the initial deviation of the workpiece is too large (such as burrs, slight ovality), it may accidentally trigger the ejection mechanism. Data comparison: A certain automated production line requires the incoming material defect rate < 0.1%, while the design tolerance of this solution is higher (it can handle 1% - 2% defective parts), making it more suitable for semi-automated scenarios with large fluctuations in incoming materials.

[0075] The reasons why the present application is suitable for semi-automated or human-machine collaborative production scenarios are as follows: For example, for customized commercial air conditioner valve bodies (annual output of 10,000 - 100,000 pieces), the return on investment of traditional automated production lines is low, while this solution can adapt to different models through modular guide rods, reducing the equipment investment cost. In addition, for the installation steps that require manual intervention, the guide rod 162 of this solution can be integrated into the human-machine collaborative workstation. After the worker places the positioning part 2, the guide rod 162 completes centering and quality inspection, avoiding the complexity of full automation transformation.

[0076] See Figure 6 , a first limit block is fixed inside the feeding groove 152, a first limit groove is provided inside the pushing block 161, and the first limit block is slidably arranged inside the first limit groove. The movement range of the pushing block 161 is limited by the limiting effect of the first limit block and the first limit groove; a second limit block is fixed inside the pushing block 161, a second limit groove is provided inside the guide rod 162, and the second limit block is slidably arranged inside the second limit groove. The movement range of the guide rod 162 is limited by the cooperation of the second limit block and the second limit groove;

[0077] After the spinning process is completed, the hydraulic gripper 144 first releases the clamping state, and then the operator pulls back the guide rod 162. The pushing block 161 is driven to retract synchronously through the linkage between the second limit block and the second limit groove. During the reset process of the pushing block 161, the spun shell 1 is pushed away from the hydraulic gripper 144 station. When the pushing block 161 completely retracts into the feeding groove 152, the shell 1 is automatically separated from the pushing block 161 under the mechanical limiting action of the main body 141 and freely falls, realizing automatic unloading. This mechanism realizes the automatic demolding and collection of the spun-formed workpiece through mechanical linkage design, eliminating the traditional manual part-taking operation link, significantly improving the production efficiency and reducing the operation intensity.

[0078] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "center, up, down, left, right, vertical, horizontal, inner, outer" are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. In addition, the terms "first, second, third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0079] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "mounted, connected, 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 or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0080] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, so that a process, article, or device / equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in these processes, articles, or devices.

[0081] So far, the technical solution of the present invention has been described in combination with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A stainless steel one-way valve for an air-conditioning pipeline, characterized in that, Comprising: A housing (1), A positioning member (2), fixedly connected inside the housing (1) by the deformation of the housing (1), A valve seat (3), fixedly connected inside the housing (1), and A valve core (4), slidably arranged inside the positioning member (2), cooperating with the valve seat (3) to form a seal for the inside of the housing (1); Wherein, the housing (1) deforms to form a convex ring (8) that is recessed inward, and the positioning member (2) is fixedly connected inside the housing (1) through the convex ring (8), and a guiding groove (12) is provided inside the positioning member (2).

2. The stainless steel one-way valve for air-conditioning pipelines according to claim 1, wherein The valve core (4) is a conical cover body, and an inclined protrusion (5) is integrally formed inside the valve seat (3).

3. The stainless steel one-way valve for air-conditioning pipelines according to claim 1, characterized in that, A guiding column (6) is fixedly connected inside the valve core (4), and the guiding column (6) is slidably arranged in the guiding groove (12) inside the positioning member (2).

4. The stainless steel one-way valve for air-conditioning pipelines according to claim 1, wherein A welding ring (7) is sleeved outside the valve seat (3), and the valve seat (3) is fixedly connected inside the housing (1) through the welding ring (7).

5. The stainless steel one-way valve for air-conditioning pipelines according to claim 1, characterized in that, The housing (1) deforms to form a reduced-diameter portion (9) for restricting the position of the positioning member (2) and an installation groove (10) for installation.

6. A production device for a stainless steel one-way valve used in an air-conditioning pipeline according to any one of claims 1-5, characterized in that, Comprising: A bottom plate (13), A spinning mechanism (14), fixing the housing (1), forming a convex ring (8) by spinning the housing (1) to fix the positioning member (2), and A support and positioning mechanism (15), feeding the positioning member (2) into and positioning it inside the housing (1); Wherein, the support and positioning mechanism (15) is designed to detect the positioning member (2) when feeding it into the housing (1).

7. The production device of the stainless steel one-way valve for air-conditioning pipelines according to claim 6, characterized in that, The spinning mechanism (14) includes: A main body (141), arranged on the bottom plate (13), A spinning wheel (142), rotatably arranged inside the main body (141), and moved by a hydraulic push rod (143), A hydraulic gripper (144), used for clamping and fixing the housing (1), and A support block (145), arranged on the hydraulic gripper (144) to support the housing (1).

8. The production device of the stainless steel one-way valve for air-conditioning pipelines according to claim 7, characterized in that, The support and positioning mechanism (15) includes: A base block (151), arranged on the bottom plate (13), A feeding groove (152), arranged on the base block (151), used for storing the positioning member (2), A feeding chute (153), communicated with the feeding groove (152), and A feeding mechanism (16), feeding the positioning member (2) inside the feeding groove (152) into and positioning it inside the housing (1).

9. The production device of the stainless steel one-way valve for air-conditioning pipelines according to claim 8, characterized in that, The feeding mechanism (16) includes: A pushing block (161), slidably arranged inside the feeding groove (152), pushing the positioning member (2) to move into the housing (1), A guiding rod (162), slidably arranged inside the pushing block (161), and can penetrate into the guiding groove (12).

10. The production device of the stainless steel one-way valve for air-conditioning pipelines according to claim 9, characterized in that, A detection groove (17) for cooperating with the guiding rod (162) is provided inside the support block (145).

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