Refrigeration device with flow regulation

Abstract

This utility model relates to the field of flow regulation technology, specifically disclosing a refrigeration mechanism with flow regulation function, including a refrigeration unit, a cooling mechanism, an output pipe and a circulation pipe respectively connected to the cooling mechanism and the refrigeration unit, and a regulating mechanism disposed on the output pipe for regulating the refrigerant flow rate; the regulating mechanism includes a connecting sleeve, an regulating sleeve coaxially connected to the connecting sleeve and rotatably fitted around its axial direction, a control sleeve fitted inside the connecting sleeve and provided with a through groove, a sealing sleeve located between the control sleeve and the connecting sleeve and coaxially fitted outside the control sleeve, a screw fitted inside the control sleeve and screwed into the connecting sleeve, and a positioning mechanism; the sealing sleeve is installed inside the connecting sleeve and slidably fitted with the control sleeve. This utility model can effectively realize the precise adjustment of refrigerant flow rate according to demand, thereby adapting to different production loads and temperature requirements, and improving the flexibility and efficiency of the refrigeration system.

Description

Technical Field

[0001] This utility model relates to the field of flow regulation technology, and more specifically, to a refrigeration mechanism with flow regulation function. Background Technology

[0002] In industrial production environments, refrigeration equipment is often used in factories to maintain stable temperatures, especially in high-temperature working environments. To ensure the smooth operation of the production process, refrigeration equipment must be able to efficiently regulate the temperature to meet different load requirements. However, in existing technologies, the refrigerant flow regulation of refrigeration equipment usually relies on fixed flow or simple control operations, which cannot be flexibly adjusted when facing different temperature requirements. Especially during the production process, the heat load of the factory may fluctuate greatly, which requires the refrigeration system to be able to automatically or flexibly adjust the refrigerant flow so as to achieve the best cooling effect under various operating conditions. Furthermore, in certain specific situations, the cooling effect of refrigeration equipment directly affects the safety and efficiency of production equipment. Especially when handling high-temperature materials or performing precision machining, if the refrigerant flow cannot be precisely adjusted, it can easily lead to overcooling or overheating, thereby affecting the normal operation of the equipment or even causing damage. Existing refrigeration systems usually adopt fixed flow regulation or simple control methods, which not only increases the difficulty of operation but may also lead to slow system response and failure to adapt to changes in ambient temperature in a timely manner. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a refrigeration mechanism with flow regulation function; it can effectively regulate the flow space of refrigerant, so that the refrigerant flow can be precisely adjusted according to demand, thereby adapting to different production loads and temperature requirements, and improving the flexibility and efficiency of the refrigeration system. The solution adopted by this utility model to solve the technical problem is: on the one hand: This utility model provides a refrigeration mechanism with flow regulation function, including a refrigeration unit, a cooling mechanism, an output pipe and a circulation pipe respectively connected to the cooling mechanism and the refrigeration unit, and a regulating mechanism disposed on the output pipe for regulating the refrigerant flow rate; The adjustment mechanism includes a connecting sleeve, an adjustment sleeve coaxially connected to the connecting sleeve and rotatably fitted around its axis, a control sleeve fitted inside the connecting sleeve and provided with a through groove, a cover sleeve located between the control sleeve and the connecting sleeve and coaxially fitted outside the control sleeve, a screw rod fitted inside the control sleeve and screwed into the connecting sleeve, and a positioning mechanism for positioning and limiting the connecting sleeve and the adjustment sleeve. The cover is installed inside the connecting sleeve and slides in conjunction with the control sleeve.

[0004] In some possible implementations, the positioning mechanism includes a mounting sleeve fitted on the outside of the connecting sleeve and connected to the end of the adjusting sleeve near the connecting sleeve, a positioning rod arranged radially along the mounting sleeve and having one end passing through the mounting sleeve and abutting against the connecting sleeve, a limiting sleeve fitted on the outside of the connecting sleeve and abutting against the outside of the positioning rod away from the connecting sleeve, and a limiting mechanism fitted on the outside of the connecting sleeve and used in conjunction with the limiting sleeve. The limiting sleeve slides along the axial direction of the connecting sleeve with the connecting sleeve; the positioning rod is elastically connected to the mounting sleeve.

[0005] In some possible implementations, the limiting mechanism includes an unlocking sleeve fitted on the outside of the connecting sleeve and located on the side of the limiting sleeve away from the adjusting sleeve, and an elastic element installed on the side of the limiting sleeve near the unlocking sleeve and inserted into the unlocking sleeve; a slot is provided on the unlocking sleeve to insert into the elastic element; the unlocking sleeve and the connecting sleeve are rotatably engaged.

[0006] In some possible implementations, the elastic element includes a push rod arranged axially along the connecting sleeve and connected at one end to the limiting sleeve, a stop block installed at the other end of the push rod, a limiting block fitted on the outside of the push rod, and a compression spring connected at one end to the limiting sleeve and fitted on the outside of the push rod; the slot includes a clearance groove and a limiting groove that is arc-shaped and connected at one end to the clearance groove, the center of the limiting groove being concentric with the center of the unlocking sleeve; the other end of the compression spring abuts against the unlocking sleeve.

[0007] In some possible implementations, a return spring is provided on the outside of the mounting sleeve, and the return spring is fitted on the outside of the positioning rod; one end of the return spring near the mounting sleeve is connected and fixed to the mounting sleeve, and the other end of the return spring is connected to the end of the positioning rod near the limiting sleeve.

[0008] In some possible implementations, multiple sets of positioning grooves that cooperate with positioning rods are provided on the outer side of the connecting sleeve. The positioning grooves are multiple sets and are equally spaced along the circumference of the connecting sleeve. Multiple sets of guide grooves that slide with the limiting sleeve are provided on the outer side of the connecting sleeve, and a guide block that corresponds to and slides with the guide groove is provided at the end of the limiting sleeve away from the adjusting sleeve.

[0009] In some possible implementations, the control sleeve includes a sleeve-shaped body fitted inside the connecting sleeve, and an end cap disposed on the side of the body away from the adjusting sleeve and connected to the screw; the through groove is disposed on the body and there are multiple sets of through grooves, which are disposed on the outside of the body and communicate with the inside of the body; the multiple sets of through grooves are arranged at intervals along the circumference of the body.

[0010] In some possible implementations, a guide rod that slides with the cover is provided on the outside of the control sleeve and along the axial direction of the control sleeve; the height of the cover along the axial direction of the connecting sleeve is less than the circumferential length of the through groove along the axial direction of the connecting sleeve.

[0011] In some possible implementations, a bracket is provided inside the adjusting sleeve, which is screwed to the screw and connected to the inner sidewall of the adjusting sleeve; a limiting block with an L-shaped cross-section is provided at one end of the adjusting sleeve near the connecting sleeve; a slot is formed between the limiting block and the mounting sleeve; and the end of the adjusting sleeve near the connecting sleeve is located in the slot.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes the cooperation of an adjusting sleeve, a connecting sleeve, a screw, a sealing sleeve, and a control sleeve. By controlling the movement of the control sleeve along the axial direction of the screw, the sealing area of ​​the sealing sleeve on the through groove is changed, thereby improving the flow rate of the cooling capacity. This allows the refrigerant flow rate to be precisely adjusted according to demand, adapting to different production loads and temperature requirements, and improving the flexibility and efficiency of the refrigeration system.

[0013] When refrigerant flow adjustment is not required, this utility model uses a limiting mechanism to keep the inner side of the limiting sleeve abutting against the outer end of the positioning rod, so that one end of the positioning rod passes through the mounting sleeve and is inserted into the connecting sleeve, thus fixing the connecting sleeve, the mounting sleeve, and the adjusting sleeve fixedly connected to the mounting sleeve to form a whole. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the adjustment mechanism and pipe one and pipe two in the embodiment of this utility model; Figure 3 This is a schematic diagram of the adjustment mechanism in an embodiment of the present invention; Figure 4 This is a cross-sectional view of the connecting sleeve, adjusting sleeve, positioning rod, positioning groove, and positioning mechanism in an embodiment of this utility model. Figure 5 This is a cross-sectional view of the connecting sleeve and adjusting sleeve when they are relatively fixed in an embodiment of this utility model. in: 1. Base; 2. Refrigeration unit; 3. Output tube; 4. Circulation pipe; 5. Mounting plate; 6. Guide plate; 7. Fan; 8. Cooling pipes; 9. Connecting sleeve; 10. Adjusting sleeve; 11. Bracket; 12. Envelope; 13. Control sleeve; 14. Through groove; 15. Screw; 16. Installation kit; 17. Positioning rod; 18. Positioning groove; 19. Limiting sleeve; 20. Top rod; 21. Stop; 22. Unlock the set; 23. Leaving slot; 24. Restriction block; 25. Restriction slot; 26. End cap; 27. Guide rod; 28. Return spring; 29. Guide block; 30. Guide groove; 31. Compression spring. Detailed Implementation

[0015] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the existence of at least one. In the implementation of this application, "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more. For example, multiple positioning posts refer to two or more positioning posts. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0016] The present invention will now be described in detail.

[0017] like Figures 1-5 As shown: on the one hand: This utility model provides a refrigeration mechanism with flow regulation function, including a refrigeration unit 2, a cooling mechanism, an output pipe 3 and a circulation pipe 4 respectively connected to the cooling mechanism and the refrigeration unit 2, and a regulating mechanism disposed on the output pipe 3 for regulating the refrigerant flow. The cooling mechanism includes a guide plate 6, a cooling pipe 8 surrounding the guide plate 6, and a fan 7 disposed on the outside of the guide plate 6; the cooling pipe 8 is connected to the output pipe 3 and the circulation pipe 4 respectively; The refrigeration unit 2 and the cooling mechanism are mounted on the base 1. The cooling mechanism is mounted on the base 1 via the mounting plate 5. The adjustment mechanism includes a connecting sleeve 9, an adjustment sleeve 10 coaxially connected to the connecting sleeve 9 and rotatably fitted around its axial direction, a control sleeve 13 fitted inside the connecting sleeve 9 and provided with a through groove 14, a sealing sleeve 12 located between the control sleeve 13 and the connecting sleeve 9 and coaxially fitted outside the control sleeve 13, a screw 15 fitted inside the control sleeve 13 and screwed into the connecting sleeve 9, and a positioning mechanism for positioning and limiting the connecting sleeve 9 and the adjustment sleeve 10. Specifically, the output pipe 3 includes a pipe 1 connected to the cooling pipe 8 and a pipe 2 connected to the refrigerator 2. The pipe 1 and the pipe 2 are connected by an adjustment mechanism, wherein the adjustment sleeve 10 is connected to the pipe 1 and is fitted on the outside of the pipe 1, and the connecting sleeve 9 is fitted on the outside of the pipe 2. Furthermore, the first pipe and the adjusting sleeve 10 are slidably fitted around their axis and are interconnected; the second pipe is located between the connecting sleeve 9 and the control sleeve 13; the first pipe and the adjusting sleeve 10, and the second pipe and the connecting sleeve 9 are sealed together; the second pipe is fitted on the outside of the control sleeve 13 and is connected to the through groove 14 provided on the control sleeve 13, thereby forming a flow channel for refrigerant flow. The cover 12 is installed inside the connecting sleeve 9 and slides with the control sleeve 13; When adjusting the refrigerant flow rate, the positioning mechanism releases the positioning and limiting of the connecting sleeve 9 and the adjusting sleeve 10, and then controls the adjusting sleeve 10 to rotate around its axis. Since the adjusting sleeve 10 is connected to the control sleeve 13 through the screw 15, the control sleeve 13 and the sealing sleeve 12 slide along the axis of the screw 15, thereby causing the control sleeve 13 to move along the axis of the screw 15; thus, the area of ​​the through groove 14 changes, thereby changing the refrigerant passage space and realizing the adjustment of the refrigerant flow rate. This setting allows the refrigerant flow rate to be precisely adjusted according to the demand, thereby adapting to different production loads and temperature requirements, and improving the flexibility and efficiency of the refrigeration mechanism.

[0018] In some possible implementations, in order to effectively achieve rotation and limiting fixation of the adjusting sleeve 10 and the connecting sleeve 9 by means of a positioning mechanism, the positioning mechanism includes a mounting sleeve 16 fitted on the outside of the connecting sleeve 9 and connected to the end of the adjusting sleeve 10 near the connecting sleeve 9, a positioning rod 17 arranged radially along the mounting sleeve 16 and having one end passing through the mounting sleeve 16, a limiting sleeve 19 fitted on the outside of the connecting sleeve 9 and abutting against the outer side of the positioning rod 17 away from the connecting sleeve 9, and a limiting mechanism fitted on the outside of the connecting sleeve 9 and used in conjunction with the limiting sleeve 19; one end of the positioning rod 17 passes through the mounting sleeve 16 and abuts against the outer side of the connecting sleeve 9. The limiting sleeve 19 slides in conjunction with the connecting sleeve 9 along the axial direction of the connecting sleeve 9; the positioning rod 17 is elastically connected to the mounting sleeve 16; When the connecting sleeve 9 and the adjusting sleeve 10 are fixed in a limited position, under the restriction of the mounting sleeve 16, one end of the positioning rod 17 will pass through the mounting sleeve 16 and abut against the outer side of the connecting sleeve 9, thereby effectively restricting the rotation of the two. When flow regulation is required, the limiting sleeve 19 will move away from the adjusting sleeve 10 along its axis. At this time, the inner side of the limiting sleeve 19 will no longer restrict the outer end face of the positioning rod 17. Since the positioning rod 17 and the mounting sleeve 16 are elastically connected, the positioning rod 17 will no longer abut against the outer side of the connecting sleeve 9 under the elastic force, and the rotation restriction between the adjusting sleeve 10 and the connecting sleeve 9 will be canceled. Then, the adjusting sleeve 10 is controlled to rotate around its axis, and the control sleeve 13 is moved along its axis through the screw 15, changing the space through which the refrigerant can pass in the through slot 14, thereby realizing the regulation of the refrigerant flow rate. After adjustment, the control limit sleeve 19 moves closer to the adjustment sleeve 10, and the inner side of the limit sleeve 19 abuts against the outer end face of the positioning rod 17, thereby fixing the connecting sleeve 9 and the adjustment sleeve 10 again.

[0019] In some possible implementations, in order to effectively adjust the limiting sleeve 19 along the screw 15 axially through the limiting mechanism, and to fix the unlocking sleeve 22 after adjustment, the limiting mechanism includes an unlocking sleeve 22 fitted on the outside of the connecting sleeve 9 and located on the side of the limiting sleeve 19 away from the adjusting sleeve 10, and an elastic element installed on the side of the limiting sleeve 19 near the unlocking sleeve 22 and inserted into the unlocking sleeve 22; a slot is provided on the unlocking sleeve 22 to insert into the elastic element; the unlocking sleeve 22 is rotatably engaged with the connecting sleeve 9.

[0020] Specifically, when flow adjustment is required, the unlocking sleeve 22 is rotated around the axis of the connecting sleeve 9 so that one end of the elastic element is aligned with the slot. Then, the unlocking sleeve 22 is moved away from the adjusting sleeve 10 and the elastic element is inserted into the slot so that the elastic element is engaged with the slot. At this time, the elastic element is in a compressed state, and the limiting sleeve 19 will not restrict the positioning rod 17. Thus, the positioning rod 17, which was originally in a compressed state, will no longer abut against the outer side of the connecting sleeve 9 when the elastic force is restored. As a result, the connecting sleeve 9 and the adjusting sleeve 10 are no longer limited and fixed. After adjustment, the elastic element separates from the slot and the elastic element will return from the compressed state to the initial state, so that the unlocking sleeve 22 moves closer to the adjusting sleeve 10 and abuts against the outer end face of the positioning rod 17, thereby realizing the limiting and fixing of the adjusting sleeve 10 and the connecting sleeve 9 again.

[0021] In some possible implementations, to effectively position the unlocking sleeve 22 through the cooperation of the elastic element and the slot, the elastic element includes a push rod 20 arranged axially along the connecting sleeve 9 and connected at one end to the limiting sleeve 19, a stop block 21 installed at the other end of the push rod 20, a limiting block 24 fitted on the outside of the push rod 20, and a compression spring 31 connected at one end to the limiting sleeve 19 and fitted on the outside of the push rod 20; the slot includes a clearance groove 23 and a limiting groove 25 that is arc-shaped and connected at one end to the clearance groove 23, the center of the limiting groove 25 being concentric with the center of the unlocking sleeve 22; the other end of the compression spring 31 abuts against the unlocking sleeve 22. The compression spring 31 provides the necessary elastic force to ensure that the limiting sleeve 19 remains stable during operation, preventing the limiting sleeve 19 from shifting or loosening due to external forces, thereby enhancing the stability of the limiting sleeve 19 and ensuring reliability and accuracy. A gap is formed between the stop block 21 and the limiting block 24. In use, the stop block 21 is first passed through the relief groove 23, and then the unlocking sleeve 22 is rotated so that the top rod 20 is located in the limiting groove 25. The width of the limiting groove 25 is smaller than the width of the relief groove 23, so the stop block 21 cannot pass through the limiting groove 25. This ensures that after the limiting sleeve 19 moves to the unlocking sleeve 22, it will not directly return to its original position under the elastic force, thereby meeting the adjustment requirements of the adjusting sleeve 10. After the adjusting sleeve 10 is adjusted to the correct position, the unlocking sleeve 22 will rotate in the opposite direction around its axis, and the stop block 21 will enter the relief groove 23. Then, under the elastic force, the limiting sleeve 19 will move towards the side closer to the positioning rod 17, and its inner side will abut against the outer side of the positioning rod 17. The design of the clearance groove 23 allows the stop block 21 and the limiting block 24 to pass smoothly when the limit sleeve 19 moves, reducing movement resistance and avoiding jamming caused by collision, thereby improving the flexibility and stability of the system and ensuring smooth and unobstructed operation during the adjustment process.

[0022] In some possible implementations, to enable the positioning rod 17 to abut against the outer surface of the connecting sleeve 9 under elastic force, a return spring 28 is provided on the outer side of the mounting sleeve 16, and the return spring 28 is fitted onto the outer side of the positioning rod 17; one end of the return spring 28 near the mounting sleeve 16 is connected and fixed to the mounting sleeve 16, and the other end of the return spring 28 is connected to the end of the positioning rod 17 near the limiting sleeve 19; multiple sets of positioning grooves 18 are provided on the outer side of the connecting sleeve 9 to cooperate with the positioning rod 17, and the positioning grooves 18 are multiple sets and are equally spaced along the circumference of the connecting sleeve 9; specifically, the number of positioning grooves 18 will be greater than the number of positioning rods 17. Multiple sets of guide grooves 30 are provided on the outer side of the connecting sleeve 9, which slide and cooperate with the limiting sleeve 19. The end of the limiting sleeve 19 away from the adjusting sleeve 10 is provided with a guide block 29 that corresponds to and slides and cooperates with the guide grooves 30. The cooperation between the guide block 29 and the guide groove 30 will limit the sliding direction of the limiting sleeve 19, so that the limiting sleeve can only slide with the connecting sleeve 9 along the axial direction of the screw 15. The reset spring 28 can automatically return the positioning rod 17 to its original position after adjustment, ensuring the accurate positioning of the positioning rod 17 and preventing positioning deviations caused by operational errors. At the same time, it improves the stability and reliability of adjustment and ensures the continuous and efficient operation of the adjustment system during use.

[0023] In some possible implementations, the control sleeve 13 includes a sleeve-shaped body fitted inside the connecting sleeve 9, and an end cap 26 disposed on the side of the body away from the adjusting sleeve 10 and connected to the screw 15; the through groove 14 is disposed on the body and there are multiple sets of the through groove 14, which are disposed on the outside of the body and communicate with the inside of the body; the multiple sets of the through groove 14 are spaced apart along the circumference of the body. A guide rod 27 is provided on the outside of the control sleeve 13 and along the axial direction of the control sleeve 13, which slides and engages with the cover 12; the height of the cover 12 along the axial direction of the connecting sleeve 9 is less than the circumferential length of the through groove 14 along the axial direction of the connecting sleeve 9. The guide rod 27 is mounted on the end cover 26 and its axis is set along the length direction of the screw 15, so that the control sleeve 13 can effectively move along the axis of the screw 15 under the adjustment of the adjusting sleeve 10. The sleeve 12 is ring-shaped and is fitted on the outside of the main body. Rotating the adjusting sleeve 10 causes the end cap 26 connected to the screw 15 to slide along the axial direction of the screw 15, thereby driving the main body to move. The sleeve 12 is fixedly installed on the inside of the connecting sleeve 9. The main body and the sleeve 12 move relative to each other. By changing the space in the through groove 14 for refrigerant to pass through through the sleeve 12, the refrigerant flow rate can be adjusted. Specifically, there are multiple sets of guide rods 27; multiple sets of guide holes corresponding to the guide rods 27 are provided on the sleeve 12; the guide rods 27 are arranged along the axial direction of the screw 15 and are located on the side of the end cover 26 close to the body, thereby effectively guiding the movement of the control sleeve 13; The cooperation between the guide block 29 and the guide groove 30 allows the limiting sleeve 19 to slide smoothly within the connecting sleeve 9; this avoids jamming caused by inaccurate positioning or excessive friction, ensuring the precise positioning and smooth movement of the limiting sleeve 19, and improving the accuracy of the adjustment process.

[0024] In some possible implementations, a bracket 11 is provided inside the adjusting sleeve 10, which is screwed into the screw 15 and connected to the inner side wall of the adjusting sleeve 10; a limiting block with an L-shaped cross section is provided at one end of the adjusting sleeve 10 near the connecting sleeve 9; a slot is formed between the limiting block and the mounting sleeve 16; the end of the adjusting sleeve 10 near the connecting sleeve 9 is located in the slot; this arrangement will effectively ensure the connection between the connecting sleeve 9 and the adjusting sleeve and enable a sliding fit.

[0025] This invention uses a refrigeration unit 2 to deliver refrigerant to a cooling pipe 8 via an output pipe 3. Multiple guide plates 6 conduct the temperature of the cooling pipe 8, and a fan 7 blows out cold air for cooling. Subsequently, the refrigerant circulates back to the refrigeration unit through a circulation pipe 4. This design effectively realizes the circulation of refrigerant and the generation of cold air. Through the temperature conduction of the cooling pipe 8 and the auxiliary action of the fan 7, continuous temperature control can be achieved, ensuring that the temperature in the space is always kept within a suitable range, providing an efficient and stable cooling effect.

[0026] This invention uses a rotating unlocking sleeve 22 to move multiple sets of clearance grooves 23, releasing them from contact with the stop block 21. By pushing the limiting sleeve 19, the top rod 20 slides within the clearance groove 23, adjusting the refrigerant flow. Rotating the unlocking sleeve 22 causes multiple sets of limiting blocks 24 to pass through the clearance groove 23 and slide below the limiting groove 25, compressing the compression spring 31. Through the threaded engagement between the adjusting sleeve 10 and the bracket 11, the control sleeve 13 slides against the sealing sleeve 12, thereby changing the sealing area of ​​the through groove 14 and adjusting the refrigerant flow space. This design allows for precise adjustment of the refrigerant flow according to demand, adapting to different production loads and temperature requirements, and improving the flexibility and efficiency of the refrigeration system.

[0027] In this invention, the rotation range of the adjusting sleeve 10 is precisely limited by the cooperation of the positioning rod 17 and the limiting sleeve 19, ensuring that all components are always in the correct position during the flow adjustment process. The cooperation between the positioning rod 17 and the positioning groove 18 achieves stable positioning of the adjusting sleeve 10, while the cooperation between the limiting sleeve 19 and the top rod 20 effectively prevents misoperation and deviation of the components. The design of the compression spring 31 and the unlocking sleeve 22 ensures that the adjusting sleeve 10 can accurately return to its original position after adjustment, while avoiding structural damage caused by improper operation. This design not only ensures the stability and accuracy during the adjustment process.

[0028] The adjustment method based on the above-described refrigeration mechanism with flow regulation function; specifically: When it is necessary to adjust the refrigerant flow rate, the limiting mechanism releases the limiting sleeve 19 from the unlocking sleeve 22, pushing the limiting sleeve 19 to move closer to the unlocking sleeve 22. After the limiting sleeve 19 moves to the designated position, the limiting mechanism will release the limiting of the unlocking sleeve 22 and the limiting sleeve 19. At this time, the limiting sleeve 19 will no longer abut against the outside of the positioning rod 17. The rotating adjusting sleeve 10 drives the control sleeve 13 to move axially along the screw 15, changing the sealing area of ​​multiple sets of through slots 14, thereby changing the flow space of the refrigerant and thus regulating the flow rate.

[0029] Specifically, when the refrigerant flow needs to be adjusted, rotating the unlocking sleeve 22 moves multiple sets of clearance grooves 23 to below multiple sets of stops 21, releasing the contact between the multiple sets of stops 21 and the top surface of the unlocking sleeve 22. This pushes the limiting sleeve 19, causing the push rod 20 to move into the clearance groove 23. When the multiple sets of limiting blocks 24 pass through the clearance groove 23, rotating the unlocking sleeve 22 again causes the multiple sets of push rods 20 to slide in the limiting groove 25 and compress the compression spring 31. The top surfaces of the multiple sets of limiting blocks 24 abut against the bottom surface of the unlocking sleeve 22, limiting the limiting sleeve 19. The multiple sets of reset springs 28 pull the positioning rod 17 outward and disengage it from the positioning groove 18, releasing the limitation on the adjusting sleeve 10. Rotating the adjusting sleeve 10 allows for threaded engagement between the bracket 11 and the screw 15, causing the control sleeve 13 to slide along the sealing sleeve 12, changing the sealing area of ​​the multiple sets of through grooves 14, thereby changing the refrigerant flow space and adjusting the flow rate.

[0030] After adjustment, rotating the unlocking sleeve 22 causes multiple sets of top rods 20 to slide out of the limiting groove 25 and move into the relief groove 23, releasing the contact between multiple sets of limiting blocks 24 and the unlocking sleeve 22. Multiple sets of compression springs 31 reset and push the limiting sleeve 19 to abut against the top of multiple sets of positioning rods 17, pushing the multiple sets of positioning rods 17 into the positioning groove 18 to position the adjusting sleeve 10. When multiple sets of stop blocks 21 disengage from the relief groove 23, rotating the unlocking sleeve 22 causes multiple sets of stop blocks 21 to abut against the top surface of the unlocking sleeve 22 to limit the limiting sleeve 19.

[0031] This invention is not limited to the specific embodiments described above. This invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A refrigeration mechanism with flow regulation function, characterized in that, It includes a refrigeration unit, a cooling mechanism, an output pipe and a circulation pipe connected to the cooling mechanism and the refrigeration unit respectively, and a regulating mechanism installed on the output pipe for regulating the refrigerant flow rate; The adjustment mechanism includes a connecting sleeve, an adjustment sleeve coaxially connected to the connecting sleeve and rotatably fitted around its axis, a control sleeve fitted inside the connecting sleeve and provided with a through groove, a cover sleeve located between the control sleeve and the connecting sleeve and coaxially fitted outside the control sleeve, a screw rod fitted inside the control sleeve and screwed into the connecting sleeve, and a positioning mechanism for positioning and limiting the connecting sleeve and the adjustment sleeve. The cover is installed inside the connecting sleeve and slides in conjunction with the control sleeve.

2. A refrigeration mechanism with flow regulation function according to claim 1, characterized in that, The positioning mechanism includes an installation sleeve fitted on the outside of the connecting sleeve and connected to the end of the adjusting sleeve near the connecting sleeve; a positioning rod arranged radially along the installation sleeve and having one end passing through the installation sleeve and abutting against the connecting sleeve; a limiting sleeve fitted on the outside of the connecting sleeve and abutting against the outside of the positioning rod away from the connecting sleeve; and a limiting mechanism fitted on the outside of the connecting sleeve and used in conjunction with the limiting sleeve. The limiting sleeve slides along the axial direction of the connecting sleeve with the connecting sleeve; the positioning rod is elastically connected to the mounting sleeve.

3. A refrigeration mechanism with flow regulation function according to claim 2, characterized in that, The limiting mechanism includes an unlocking sleeve fitted on the outside of the connecting sleeve and located on the side of the limiting sleeve away from the adjusting sleeve, and an elastic element installed on the side of the limiting sleeve near the unlocking sleeve and inserted into the unlocking sleeve; a slot is provided on the unlocking sleeve to insert into the elastic element; the unlocking sleeve and the connecting sleeve are rotatably engaged.

4. A refrigeration mechanism with flow regulation function according to claim 3, characterized in that, The elastic element includes a push rod arranged axially along the connecting sleeve and connected to the limiting sleeve at one end, a stop block installed at the other end of the push rod, a limiting block fitted on the outside of the push rod, and a compression spring connected to the limiting sleeve at one end and fitted on the outside of the push rod; the slot includes a clearance groove and a limiting groove that is arc-shaped and connected to the clearance groove at one end, the center of the limiting groove being concentric with the center of the unlocking sleeve; the other end of the compression spring abuts against the unlocking sleeve.

5. A refrigeration mechanism with flow regulation function according to any one of claims 2-4, characterized in that, A return spring is provided on the outside of the mounting sleeve, and the return spring is fitted on the outside of the positioning rod; one end of the return spring near the mounting sleeve is connected and fixed to the mounting sleeve, and the other end of the return spring is connected to the end of the positioning rod near the limiting sleeve.

6. A refrigeration mechanism with flow regulation function according to claim 5, characterized in that, Multiple sets of positioning grooves are provided on the outer side of the connecting sleeve to cooperate with the positioning rod. The positioning grooves are multiple sets and are equally spaced along the circumference of the connecting sleeve. Multiple sets of guide grooves that slide with the limiting sleeve are provided on the outer side of the connecting sleeve, and a guide block that corresponds to and slides with the guide groove is provided at the end of the limiting sleeve away from the adjusting sleeve.

7. A refrigeration mechanism with flow regulation function according to any one of claims 1-4, characterized in that, The control sleeve includes a sleeve-shaped body fitted inside the connecting sleeve, and an end cap located on the side of the body away from the adjusting sleeve and connected to the screw.

8. A refrigeration mechanism with flow regulation function according to claim 7, characterized in that, The through slots are provided on the body and there are multiple sets of them. The multiple sets of through slots are located on the outside of the body and communicate with the inside of the body. The multiple sets of through slots are arranged at intervals along the circumference of the body.

9. A refrigeration mechanism with flow regulation function according to claim 7, characterized in that, A guide rod that slides with the cover is provided on the outside of the control sleeve and along the axial direction of the control sleeve; the height of the cover along the axial direction of the connecting sleeve is less than the circumferential length of the through groove along the axial direction of the connecting sleeve.

10. A refrigeration mechanism with flow regulation function according to claim 2, characterized in that, A bracket is provided inside the adjusting sleeve, which is screwed to the screw and connected to the inner side wall of the adjusting sleeve; a limiting block with an L-shaped cross section is provided at one end of the adjusting sleeve near the connecting sleeve; a slot is formed between the limiting block and the mounting sleeve; and the end of the adjusting sleeve near the connecting sleeve is located in the slot.

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