Refrigerant filling device for evaporator

Abstract

The invention relates to the technical field of refrigerants, in particular to an evaporator refrigerant filling device which comprises an equipment shell, a feeding pipe is fixedly connected to the outer side of the equipment shell, a flat welding hubbed flange is fixedly connected to the end, away from the equipment shell, of the feeding pipe, and a discharging pipe is fixedly connected to the bottom of the equipment shell. A discharging pipe is fixedly connected to the top of the equipment shell, a filter element type drying agent is arranged in the discharging pipe, a top plate is fixedly connected to the top of the equipment shell, a starting assembly used for treating internal impurities is arranged in the equipment shell, and a limiting block and a trigger disc are arranged in the starting assembly. Through cooperation of the lifting block, the stopping block and the collecting frame, impurities deposited in the liquid storage device can be filtered, the situation that the impurities enter the evaporator under the flowing effect of a refrigerant, and then a system is blocked is avoided, the fault rate of the evaporator is reduced, and system pollution is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerants, and particularly to a refrigerant filling device for an evaporator. Background Art

[0002] The evaporator is a core component of the refrigeration system. Its main function is to absorb heat through the phase change process of the refrigerant, thereby achieving a cooling or refrigeration effect. At present, when filling the refrigerant into the evaporator, it is necessary to fill the refrigerant through the liquid storage device on the evaporator. When the liquid storage device has not been maintained for a long time, some impurities such as metal rust slag and oxidation products will be deposited inside the liquid storage device. When the refrigerant is added, these impurities will enter the interior of the evaporator under the action of the refrigerant flow, resulting in system blockage. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a refrigerant filling device for an evaporator.

[0004] To solve the above technical problems, the present invention provides the following technical solutions: It includes a device housing. A feed pipe is fixedly connected to the outside of the device housing. A flat-welded neck flange is fixedly connected to the end of the feed pipe away from the device housing. A discharge pipe is fixedly connected to the bottom of the device housing. A filter cartridge desiccant is provided inside the discharge pipe. A top plate is fixedly connected to the top of the device housing. A starting component for processing internal impurities is provided inside the device housing. A limiting block and a trigger disc are provided inside the starting component. The cooperation of the limiting block and the trigger disc can provide power for processing impurities. A fixing strip is provided inside the starting component. The fixing strip is fixedly connected to the inside of the device housing. A fixing frame is fixedly connected to the fixing strip. The top of the fixing frame is fixedly connected to a movable frame. A through groove for placing a lifting block is provided on the movable frame. The lifting block is inserted into the through groove of the movable frame. The movable frame can limit the lifting block. One end of the lifting block away from the movable frame is fixedly connected to the limiting block. A bearing is provided on the limiting block. The inner ring of the bearing on the limiting block is fixedly connected to a rotating column. The outside of the rotating column is fixedly connected to the trigger disc. Two fitting columns are fixedly connected to the trigger disc correspondingly. One end of the fixing frame close to the fixing strip is fixedly connected to a fixing frame. A hollow groove for placing a translation strip is provided on the fixing frame. The translation strip is inserted into the hollow groove of the fixing frame. Two limiting columns are fixedly connected to the two sides of the translation strip correspondingly. And the shape of the hollow groove of the translation strip corresponds to the translation strip and the limiting columns. A knocking block is fixedly connected to the top of the translation strip. A blocking block is fixedly connected to the top of the knocking block. Two support rods are fixedly connected to the two ends of the top of the translation strip correspondingly. A trigger column is fixedly connected to the top of each support rod. A knocking block is fixedly connected to one end of each trigger column. The knocking block is composed of a disc and two long strips; When the trigger disc moves to a position corresponding to the trigger post, the fitting post on the trigger disc fits with the corresponding trigger post on the trigger post. The blocking block is triangular. When a long strip at the bottom of the trigger disc moves to a position corresponding to the blocking block, the long strip end of the trigger disc fits with the inclined angle of the blocking block. When the trigger disc moves towards the position where the long strip at the bottom of the trigger disc fits with the blocking block, the trigger disc pushes the blocking block to translate. And when the blocking block translates to the maximum distance, the knocking block on the trigger post fits with the inner wall of the device housing. When a long strip at the bottom of the trigger disc pushes the blocking block to move to the maximum distance, the position of the long strip at the top of the trigger disc corresponds to a trigger post away from the inner wall of the device housing.

[0005] When it is necessary to fill the refrigerant into the evaporator, the refrigerant is placed into the device housing from the feed pipe. The refrigerant enters the interior of the device housing along the feed pipe. Then, the lifting block moves up and down along the movable frame. When the lifting block moves, it drives the limit block to move. When the limit block moves, it drives the rotating column to move. When the rotating column moves, it drives the trigger disc to move. When the trigger disc moves to a position corresponding to the trigger post, the trigger post fits with the fitting post on the trigger disc. Then, the trigger post blocks the corresponding fitting post. After the fitting post fits with the trigger post, it drives the trigger disc to rotate. When the trigger disc moves towards the bottom of the trigger post, the flipped trigger disc moves towards the position of the blocking block. When the trigger disc moves to a position corresponding to the blocking block, the blocking block fits with the trigger disc. The trigger disc pushes the fitting blocking block to move. Affected by the trigger disc, the blocking block drives the translation bar to translate along the fixed frame. When the translation bar translates, it drives the support bar to move. When the support bar moves, it drives the trigger post to move. When the trigger post moves, it drives the knocking block to knock on the inner wall of the device housing.

[0006] As a preferred technical solution of the present invention, a limit component for cooperating with the starting component is provided on the limit block. A rotating arm and a tension spring are provided in the limit component. The rotating column can be limited through the cooperation of the rotating arm and the tension spring. A positioning bar is provided in the limit component. The positioning bar is fixedly connected to the bottom of the limit block. The tension spring can be limited through the setting of the positioning bar. The rotating arm is fixedly connected to the end of the rotating column away from the trigger disc. The rotating arm is composed of a ring and a long strip. There are two placing posts in total. One placing post is fixedly connected to the long strip part of the rotating arm and the positioning bar respectively. The two ends of the tension spring are fixedly connected to the two placing posts respectively. Two limiting posts are fixedly connected to the end of the limit block close to the rotating arm, and the two limiting posts are distributed on both sides of the bottom of the ring part of the rotating arm.

[0007] When the fitting column drives the trigger disc to rotate, the trigger disc drives the rotating column to rotate during rotation. The rotation of the rotating column drives the rotating arm on the rotating column to rotate towards the top direction. When the rotating arm rotates, it drives the tension spring to rotate and stretch at the same time. After the rotating arm rotates to the maximum position where the tension spring is stretched, the rotating arm rotates towards the position close to the positioning strip. Then, the rebounding of the stretched tension spring drives the rotating column to continue rotating towards the position of the positioning strip. When the rotating column rotates, it drives the trigger disc to complete the action of rotating and changing positions.

[0008] As a preferred technical solution of the present invention, a collection component for cooperating with the limit component is provided at one end of the rotating column away from the rotating arm. A blocking plate and a support column are provided inside the collection component. The impurities can be collected through the cooperation of the blocking plate and the support column. A collection frame is provided inside the collection component. The collection frame is fixedly connected to one end of the rotating column close to the trigger disc. A number of small round holes for filtering the refrigerant are provided on the collection frame. Two symmetrical blocking plates are provided inside the collection frame, and the two blocking plates are staggered. Two starting holes for placing the blocking plates are provided on the collection frame. The two blocking plates are inserted into the corresponding starting holes. A filter plate is fixedly connected inside the collection frame. A number of small round holes for discharging the refrigerant are provided on the filter plate. Two sealing cylinders are fixedly connected to the collection frame. A sealing pad is provided inside each sealing cylinder. One end of each sealing pad away from the sealing cylinder is respectively fixedly connected to a support column. A placement hole for placing the support column is provided on each sealing cylinder. The support column is inserted into the placement hole of the sealing cylinder. One end of each support column away from the sealing pad is fixedly connected to the corresponding blocking plate.

[0009] When the rotating column moves, the rotating column drives the collection frame to move. When the collection frame moves, it drives the blocking plate to move. When the collection frame rises, one of the blocking plates on the top surface of the collection frame is affected by the resistance of the liquid refrigerant. Then, the corresponding blocking plate moves towards the inside of the collection frame. When the blocking plate moves, it drives the support column to move towards the inside of the sealing cylinder. When the support column moves, it drives the sealing pad to compress the air inside the sealing cylinder. And when the blocking plate moves towards the inside of the collection frame at the same time, the blocking plate releases the blocking effect on the starting hole of the collection frame. Then, the refrigerant enters the inside of the collection frame along the starting hole of the collection frame. When the rotating column starts to descend, the compressed air inside the corresponding sealing cylinder rebounds to drive the support column to reset. The reset of the support column drives the corresponding blocking plate to reset. When the rotating column drives the collection frame to rotate, the collection frame drives the corresponding blocking plate to be affected by the resistance of the liquid refrigerant during rotation. The blocking plate moves towards the inside of the collection frame. Then, the refrigerant enters the inside of the collection frame. When the liquid refrigerant releases the resistance on the blocking plate, the compressed air inside the sealing cylinder rebounds to drive the blocking plate to reset. After the blocking plate resets, it collects the impurities contained in the refrigerant inside the collection frame.

[0010] As a preferred technical solution of the present invention, a transmission assembly for transmitting power is provided on the outer side of the fixing frame. A bearing plate is provided inside the transmission assembly. The bearing plate is fixedly connected to the outer side of the fixing frame. A bearing is provided on the bearing plate. The inner ring of the bearing on the bearing plate is fixedly connected with a threaded column. The top of the threaded column is movably connected to the top plate. The top of the top plate is fixedly connected with a machine shell. A stepping motor is provided inside the machine shell. The model of the stepping motor refers to the existing Delta ASDA-B2 series. The output shaft of the stepping motor is fixedly connected to the threaded column. A threaded block is threadedly connected to the threaded column. The threaded column can fix the threaded block. One end of the threaded block passes through the through groove of the movable frame and is fixedly connected to the limiting block.

[0011] When it is necessary to add refrigerant to the evaporator, start the stepping motor. The stepping motor rotates to drive the threaded column to rotate. The threaded column rotates to drive the threaded column to translate along the threaded column. When the threaded column translates, it drives the limiting block to move along the lifting block.

[0012] As a preferred technical solution of the present invention, a scraping assembly for cooperating with the starting assembly is provided at the top of the discharge pipe. A filter disk is provided inside the scraping assembly. The filter disk is arranged on the top of the filter element type desiccant in the discharge pipe. Small round holes for refrigerant circulation are provided on the filter disk. A support bar is fixedly connected inside the equipment shell. A connecting disk is fixedly connected to the support bar. A bearing is provided on the connecting disk. The inner ring of the bearing on the connecting disk is fixedly connected with a movable column. The top of the movable column is fixedly connected with a gear. An irregular strip is fixedly connected to the bottom of the translation strip. The irregular strip is in an S shape. A plurality of tooth blocks are fixedly connected to the irregular strip. And the plurality of tooth blocks are engaged with the gear. The bottom of the movable column is fixedly connected with a crushing frame. The crushing frame is of a hollow structure. A plurality of crushing blocks are fixedly connected correspondingly inside the crushing frame. And the crushing blocks are attached to the top of the filter disk.

[0013] When the blocking block drives the translation strip to translate along the fixed frame, the translation strip drives the irregular strip to translate. When the irregular strip translates, it drives the tooth blocks to translate. When the tooth blocks translate, they drive the engaged gear to rotate. When the gear rotates, it drives the connecting disk to rotate. When the connecting disk rotates, it drives the crushing frame to rotate. The crushing frame rotates along the surface of the filter disk. When the crushing frame rotates, it drives the crushing blocks inside the crushing frame to crush the frost condensed on the surface of the filter disk. The crushed frost on the surface of the filter disk enters the inside of the crushing frame under the rotation of the crushing frame.

[0014] Compared with the prior art, the beneficial effects that the present invention can achieve are: 1. Through the cooperation of the starting assembly, the limiting assembly and the collecting assembly of the present invention, when it is necessary to add refrigerant into the evaporator, the impurities deposited in the liquid storage device can be filtered through the cooperation of the lifting block, the blocking block and the collecting frame, avoiding the impurities from entering the evaporator under the action of the refrigerant flow, thereby preventing the system from being blocked, reducing the failure rate of the evaporator and avoiding system pollution.

[0015] 2. Through the cooperation of the starting component, the limiting component and the collecting component, when it is necessary to fill the refrigerant into the evaporator, the impurities deposited in the liquid storage tank can be automatically shaken through the cooperation of the trigger disc, the translation bar and the collecting frame. While shaking, the impurities float up and are collected, avoiding the accumulation of impurities in the corners and being unable to be thoroughly cleaned, and improving the cleanliness of the cleaning of the inside of the liquid storage tank.

[0016] 3. Through the cooperation of the starting component, the limiting component and the collecting component, when it is necessary to fill the refrigerant into the evaporator, when the rotating column drives the collecting frame to rotate, the liquid refrigerant is discharged through the small round holes on the collecting frame due to centrifugal force, and the impurities are thrown to the edge of the collecting frame and retained, realizing efficient solid-liquid separation.

[0017] 4. Through the cooperation of the starting component, the limiting component and the collecting component, when it is necessary to fill the refrigerant into the evaporator, when the translation bar moves to drive the knocking block to impact the inner wall of the equipment shell, the frost or impurities condensed on the inner wall of the equipment shell are shaken off, avoiding blockage and residue of impurities, and improving the cleaning strength.

[0018] 5. Through the cooperation of the starting component, the limiting component and the scraping component, when it is necessary to fill the refrigerant into the evaporator, the ice cubes condensed on the surface of the filter disc can be broken through the cooperation of the special-shaped strip and the crushing frame, avoiding the situation that the refrigerant cannot enter the evaporator due to the condensation on the surface of the filter disc, and improving the efficiency of refrigerant filling.

[0019] 6. Through the setting of the collecting component, when it is necessary to fill the refrigerant into the evaporator, through the cooperation of the support column and the sealing gasket, it not only ensures the flexible movement of the blocking plate, but also avoids the situation of refrigerant retention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the top plate of the present invention; Figure 2 It is a schematic structural diagram of the support rod of the present invention; Figure 3 It is a schematic structural diagram of the movable frame of the present invention; Figure 4 It is a schematic structural diagram of the trigger disc of the present invention; Figure 5 It is a schematic structural diagram of the fitting column of the present invention; Figure 6 It is a schematic structural diagram of the blocking block of the present invention; Figure 7 It is a schematic structural diagram of the positioning bar of the present invention; Figure 8 It is a schematic structural diagram of the collecting frame of the present invention; Figure 9Schematic diagram of the filter plate of the present invention; Figure 10 Schematic diagram of the bearing plate of the present invention; Figure 11 Schematic diagram of the threaded column of the present invention; Figure 12 Schematic diagram of the discharge pipe of the present invention; Figure 13 Schematic diagram of the crushing frame of the present invention.

[0021] Wherein: 1. Equipment shell; 2. Feed pipe; 3. Flat-welded neck flange; 4. Top plate; 5. Discharge pipe; 6. Fixed strip; 7. Fixed bracket; 8. Movable frame; 9. Lifting block; 10. Limiting block; 11. Rotating column; 12. Trigger disc; 13. Fixed frame; 14. Translation strip; 15. Limiting column; 16. Blocking block; 17. Support rod; 18. Trigger column; 19. Knocking block; 20. Collection frame; 21. Blocking plate; 22. Support column; 23. Sealing cylinder; 24. Sealing gasket; 25. Filter plate; 26. Rotating arm; 27. Limiting column; 28. Positioning strip; 29. Placing column; 30. Tension spring; 31. Bearing plate; 32. Threaded column; 33. Threaded block; 34. Stepper motor; 35. Filter disc; 36. Support strip; 37. Movable column; 38. Connection disc; 39. Crushing frame; 40. Crushing block; 41. Gear; 42. Special-shaped strip; 43. Tooth block; 44. Machine shell; 45. Fitting column. Detailed implementation manners

[0022] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present invention. The experimental methods in the following embodiments are all conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments can all be obtained from commercial channels unless otherwise specified.

[0023] Embodiment: As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, a refrigerant filling device for an evaporator includes a device housing 1. A feed pipe 2 is fixedly connected to the outside of the device housing 1. A flat-welded neck flange 3 is fixedly connected to one end of the feed pipe 2 away from the device housing 1. A discharge pipe 5 is fixedly connected to the bottom of the device housing 1. A top plate 4 is fixedly connected to the top of the device housing 1. An activation assembly for treating internal impurities is provided inside the device housing 1. A limit block 10 and a trigger disc 12 are provided inside the activation assembly. The cooperation of the limit block 10 and the trigger disc 12 can provide power for treating impurities. A fixing strip 6 is provided inside the activation assembly. The fixing strip 6 is fixedly connected inside the device housing 1. A fixing frame 7 is fixedly connected to the fixing strip 6. The top of the fixing frame 7 is fixedly connected to a movable frame 8. A through groove for placing a lifting block 9 is provided on the movable frame 8. The lifting block 9 is inserted into the through groove of the movable frame 8. The movable frame 8 can limit the lifting block 9. One end of the lifting block 9 away from the movable frame 8 is fixedly connected to the limit block 10. A bearing is provided on the limit block 10. The inner ring of the bearing on the limit block 10 is fixedly connected to a rotating column 11. The outside of the rotating column 11 is fixedly connected to the trigger disc 12. Two fitting columns 45 are correspondingly fixedly connected to the trigger disc 12. One end of the fixing frame 7 close to the fixing strip 6 is fixedly connected to a fixing frame 13. A hollow groove for placing a translation strip 14 is provided on the fixing frame 13. The translation strip 14 is inserted into the hollow groove of the fixing frame 13. Two limit columns 15 are correspondingly fixedly connected to both sides of the translation strip 14. And the shape of the hollow groove of the translation strip 14 corresponds to the translation strip 14 and the limit columns 15. A knocking block 19 is fixedly connected to the top of the translation strip 14. A blocking block 16 is fixedly connected to the top of the knocking block 19. Two support rods 17 are correspondingly fixedly connected to both ends of the top of the translation strip 14. A trigger column 18 is fixedly connected to the top of each support rod 17. A knocking block 19 is fixedly connected to one end of each trigger column 18. The knocking block 19 consists of a disc and two long strips; As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, when the trigger disc 12 moves to a position corresponding to the trigger column 18, the fitting column 45 on the trigger disc 12 fits with the corresponding trigger column 18 of the trigger column 18. The blocking block 16 is triangular. When a long strip at the bottom of the trigger disc 12 moves to a position corresponding to the blocking block 16, the long strip end of the trigger disc 12 fits with the inclination angle of the blocking block 16. When the trigger disc 12 moves towards the long strip at the bottom of the trigger disc 12 fitting with the blocking block 16, the trigger disc 12 pushes the blocking block 16 to translate. And when the blocking block 16 translates to the maximum distance, the knocking block 19 on the trigger column 18 fits with the inner wall of the device housing 1. When a long strip at the bottom of the trigger disc 12 pushes the blocking block 16 to move to the maximum distance, the position of the long strip at the top of the trigger disc 12 corresponds to a trigger column 18 away from the inner wall of the device housing 1; As Figure 1, Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown in Figure 2 , Figure 3 , Figure 4 and Figure 5 , when it is necessary to fill the refrigerant into the evaporator, the refrigerant is placed into the feeding pipe 2. The refrigerant enters the interior of the equipment housing 1 along the feeding pipe 2. Then, the lifting block 9 moves up and down along the movable frame 8. When the lifting block 9 moves, it drives the limiting block 10 to move. When the limiting block 10 moves, it drives the rotating column 11 to move. When the rotating column 11 moves, it drives the trigger disc 12 to move. When the trigger disc 12 moves to a position corresponding to the trigger post 18, the trigger post 18 fits with the fitting post 45 on the trigger disc 12. Then, the trigger post 18 blocks the corresponding fitting post 45. After the fitting post 45 fits with the trigger post 18, it drives the trigger disc 12 to rotate. When the trigger disc 12 moves towards the bottom of the trigger post 18, the flipped trigger disc 12 moves towards the position of the blocking block 16. When the trigger disc 12 moves to a position corresponding to the blocking block 16, the blocking block 16 fits with the trigger disc 12. The trigger disc 12 pushes the fitting blocking block 16 to move. After being affected by the trigger disc 12, the blocking block 16 drives the translation bar 14 to translate along the fixed frame 13. When the translation bar 14 translates, it drives the support rod 17 to move. When the support rod 17 moves, it drives the trigger post 18 to move. When the trigger post 18 moves, it drives the knocking block 19 to knock on the inner wall of the equipment housing 1.

[0024] As Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown in Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , a limiting component for cooperating with the starting component is provided on the limiting block 10. A rotating arm 26 and a tension spring 30 are provided inside the limiting component. Through the cooperation of the rotating arm 26 and the tension spring 30, the rotating column 11 can be limited. A positioning bar 28 is provided inside the limiting component. The positioning bar 28 is fixedly connected to the bottom of the limiting block 10. Through the setting of the positioning bar 28, the tension spring 30 can be limited. The rotating arm 26 is fixedly connected to the end of the rotating column 11 away from the trigger disc 12. The rotating arm 26 is composed of a circular ring and a long strip, and there are two placing columns 29 in total. One placing column 29 is fixedly connected to the long strip part of the rotating arm 26 and the positioning bar 28 respectively. The two ends of the tension spring 30 are fixedly connected to the two placing columns 29 respectively. Two limiting columns 27 are fixedly connected to the end of the limiting block 10 close to the rotating arm 26, and the two limiting columns 27 are distributed on both sides of the bottom of the circular ring part of the rotating arm 26; As Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, when the fitting post 45 drives the trigger disc 12 to rotate, the trigger disc 12 drives the rotating post 11 to rotate during rotation. The rotating post 11 drives the rotating arm 26 on the rotating post 11 to rotate towards the top direction. The rotating arm 26 drives the tension spring 30 to rotate and stretch while rotating. When the rotating arm 26 rotates to the maximum position where the tension spring 30 is stretched, the rotating arm 26 rotates towards the position close to the positioning strip 28. Then, the rebounding tension spring 30 drives the rotating post 11 to continue rotating towards the position of the positioning strip 28. The rotating post 11 drives the trigger disc 12 to complete the action of rotating and changing positions during rotation.

[0025] As Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 shown, a collection component for cooperating with the limiting component is provided at one end of the rotating post 11 away from the rotating arm 26. A blocking plate 21 and a support column 22 are provided inside the collection component. The impurities can be collected through the cooperation of the blocking plate 21 and the support column 22. A collection frame 20 is provided inside the collection component. The collection frame 20 is fixedly connected to one end of the rotating post 11 close to the trigger disc 12. A number of small round holes for filtering the refrigerant are provided on the collection frame 20. Two symmetrical blocking plates 21 are provided inside the collection frame 20, and the two blocking plates 21 are staggeredly distributed. Two starting holes for placing the blocking plates 21 are provided on the collection frame 20. The two blocking plates 21 are inserted into the corresponding starting holes. A filter plate 25 is fixedly connected inside the collection frame 20. A number of small round holes for discharging the refrigerant are provided on the filter plate 25. Two sealing cylinders 23 are fixedly connected to the collection frame 20. A sealing gasket 24 is provided inside each sealing cylinder 23. One end of each sealing gasket 24 away from the sealing cylinder 23 is respectively fixedly connected to a support column 22. A placement hole for placing the support column 22 is provided on each sealing cylinder 23. The support column 22 is inserted into the placement hole of the sealing cylinder 23. One end of each support column 22 away from the sealing gasket 24 is fixedly connected to the corresponding blocking plate 21; As Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, when the rotating column 11 moves, the rotating column 11 drives the collection box 20 to move. When the collection box 20 moves, it drives the blocking plate 21 to move. When the collection box 20 rises, one of the blocking plates 21 on the top surface of the collection box 20 is affected by the resistance of the liquid refrigerant, and thus the corresponding blocking plate 21 moves towards the inside of the collection box 20. When the blocking plate 21 moves, it drives the support column 22 to move towards the inside of the sealing cylinder 23. When the support column 22 moves, it drives the sealing gasket 24 to compress the air inside the sealing cylinder 23. And while the blocking plate 21 moves towards the inside of the collection box 20, the blocking plate 21 releases the blocking effect on the starting hole of the collection box 20. Then the refrigerant enters the inside of the collection box 20 along the starting hole of the collection box 20. When the rotating column 11 starts to descend, the compressed air inside the corresponding sealing cylinder 23 rebounds to drive the support column 22 to reset. The reset of the support column 22 drives the corresponding blocking plate 21 to reset. When the rotating column 11 drives the collection box 20 to rotate, the collection box 20 drives the corresponding blocking plate 21 to be affected by the resistance of the liquid refrigerant when rotating, and the blocking plate 21 moves towards the inside of the collection box 20. Then the refrigerant enters the inside of the collection box 20. When the liquid refrigerant releases the resistance effect on the blocking plate 21, the compressed air inside the sealing cylinder 23 rebounds to drive the blocking plate 21 to reset. After the blocking plate 21 resets, it collects the impurities contained in the refrigerant inside the collection box 20.

[0026] As Figure 6 , Figure 7 , Figure 8 , Figure 10 and Figure 11 As shown in, there is a transmission component for transmitting power on the outside of the fixing frame 7. There is a bearing plate 31 inside the transmission component. The bearing plate 31 is fixedly connected to the outside of the fixing frame 7. There is a bearing on the bearing plate 31. The inner ring of the bearing of the bearing plate 31 is fixedly connected to a threaded column 32. The top of the threaded column 32 is movably connected to the top plate 4. The top of the top plate 4 is fixedly connected to a machine shell 44. There is a stepping motor 34 inside the machine shell 44. The output shaft of the stepping motor 34 is fixedly connected to the threaded column 32. A threaded block 33 is threadedly connected to the threaded column 32. Through the setting of the threaded column 32, the threaded block 33 can be fixed. One end of the threaded block 33 passes through the through groove of the movable frame 8 and is fixedly connected to the limiting block 10; As Figure 6 , Figure 7 , Figure 8 , Figure 10 and Figure 11 As shown in, when it is necessary to fill the evaporator with refrigerant, start the stepping motor 34. The stepping motor 34 rotates to drive the threaded column 32 to rotate. The threaded column 32 rotates to drive the threaded column 32 to translate along the threaded column 32. When the threaded column 32 translates, it drives the limiting block 10 to move along the lifting block 9.

[0027] As Figure 11 ,Figure 12 and Figure 13 As shown in Figure 13 , a scraping component for cooperating with the starting component is provided at the top of the discharge pipe 5. A filter disc 35 is provided inside the scraping component. Small round holes for the refrigerant to flow through are provided on the filter disc 35. A support bar 36 is fixedly connected inside the equipment shell 1. A connecting disc 38 is fixedly connected to the support bar 36. A bearing is provided on the connecting disc 38. The inner ring of the bearing of the connecting disc 38 is fixedly connected with a movable column 37. The top of the movable column 37 is fixedly connected with a gear 41. The bottom of the translation bar 14 is fixedly connected with a special-shaped bar 42. The special-shaped bar 42 is in an S shape. A number of tooth blocks 43 are fixedly connected to the special-shaped bar 42. And the number of tooth blocks 43 is engaged with the gear 41. The bottom of the movable column 37 is fixedly connected with a crushing frame 39. The crushing frame 39 is of a hollow structure. A number of crushing blocks 40 are fixedly connected correspondingly inside the crushing frame 39. And the crushing blocks 40 are in contact with the top of the filter disc 35; As Figure 11 、 Figure 12 and Figure 13 As shown in Figure 11 , Figure 12 and Figure 13 , when the blocking block 16 drives the translation bar 14 to translate along the fixed frame 13, the translation bar 14 drives the special-shaped bar 42 to translate. When the special-shaped bar 42 translates, it drives the tooth blocks 43 to translate. When the tooth blocks 43 translate, they drive the engaged gear 41 to rotate. When the gear 41 rotates, it drives the connecting disc 38 to rotate. When the connecting disc 38 rotates, it drives the crushing frame 39 to rotate. The crushing frame 39 rotates along the surface of the filter disc 35. When the crushing frame 39 rotates, it drives the crushing blocks 40 inside the crushing frame 39 to crush the frost condensed on the surface of the filter disc 35. The crushed frost on the surface of the filter disc 35 enters the inside of the crushing frame 39 under the rotation of the crushing frame 39.

[0028] Working principle: First step, when it is necessary to fill the evaporator with refrigerant, start the stepping motor 34. The rotation of the stepping motor 34 drives the threaded column 32 to rotate. The rotation of the threaded column 32 drives the threaded column 32 to translate along the threaded column 32. When the threaded column 32 translates, it drives the limit block 10 to move along the lifting block 9; Second step, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, when it is necessary to fill the evaporator with refrigerant, the refrigerant is placed through the feed pipe 2. The refrigerant enters the interior of the equipment housing 1 along the feed pipe 2. Then, the lifting block 9 moves up and down along the movable frame 8. When the lifting block 9 moves, it drives the limit block 10 to move. When the limit block 10 moves, it drives the rotating column 11 to move. When the rotating column 11 moves, it drives the trigger disc 12 to move. When the trigger disc 12 moves to a position corresponding to the trigger post 18, the trigger post 18 fits with the fitting post 45 on the trigger disc 12. Then, the trigger post 18 blocks the corresponding fitting post 45. After the fitting post 45 fits with the trigger post 18, it drives the trigger disc 12 to rotate. When the trigger disc 12 moves towards the bottom of the trigger post 18, the flipped trigger disc 12 moves towards the position of the blocking block 16. When the trigger disc 12 moves to a position corresponding to the blocking block 16, the blocking block 16 fits with the trigger disc 12. The trigger disc 12 pushes the fitted blocking block 16 to move. Affected by the trigger disc 12, the blocking block 16 drives the translation bar 14 to translate along the fixed frame 13. When the translation bar 14 translates, it drives the support rod 17 to move. When the support rod 17 moves, it drives the trigger post 18 to move. When the trigger post 18 moves, it drives the knocking block 19 to knock on the inner wall of the equipment housing 1; The third step, as Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, when the fitting post 45 drives the trigger disc 12 to rotate, the trigger disc 12 drives the rotating column 11 to rotate when it rotates. The rotating column 11 drives the rotating arm 26 on the rotating column 11 to rotate towards the top direction. When the rotating arm 26 rotates, it drives the tension spring 30 to rotate and stretch at the same time. When the rotating arm 26 rotates to the maximum position where the tension spring 30 is stretched, the rotating arm 26 rotates towards the position close to the positioning strip 28. Then, the rebounding tension spring 30 drives the rotating column 11 to continue rotating towards the position of the positioning strip 28. When the rotating column 11 rotates, it drives the trigger disc 12 to complete the action of rotating and changing positions; Step 4: When the rotating column 11 moves, the rotating column 11 drives the collection box 20 to move. When the collection box 20 moves, it drives the blocking plate 21 to move. When the collection box 20 rises, one blocking plate 21 on the top surface of the collection box 20 is affected by the resistance of the liquid refrigerant, and thus the corresponding blocking plate 21 moves towards the inside of the collection box 20. When the blocking plate 21 moves, it drives the support column 22 to move towards the inside of the sealing cylinder 23. When the support column 22 moves, it drives the sealing gasket 24 to compress the air inside the sealing cylinder 23. And while the blocking plate 21 moves towards the inside of the collection box 20, the blocking plate 21 releases the blocking effect on the starting hole of the collection box 20. Then, the refrigerant enters the inside of the collection box 20 along the starting hole of the collection box 20. When the rotating column 11 starts to descend, the compressed air inside the corresponding sealing cylinder 23 rebounds to drive the support column 22 to reset. The reset of the support column 22 drives the corresponding blocking plate 21 to reset. When the rotating column 11 drives the collection box 20 to rotate, the collection box 20 drives the corresponding blocking plate 21 to be affected by the resistance of the liquid refrigerant when rotating, and the blocking plate 21 moves towards the inside of the collection box 20. Then, the refrigerant enters the inside of the collection box 20. When the liquid refrigerant releases the resistance effect on the blocking plate 21, the compressed air inside the sealing cylinder 23 rebounds to drive the blocking plate 21 to reset. After the blocking plate 21 resets, it collects the impurities contained in the refrigerant inside the collection box 20; Step 5: As shown in Figure 11 , Figure 12 and Figure 13 , when the blocking block 16 drives the translation bar 14 to translate along the fixed frame 13, the translation bar 14 drives the special-shaped bar 42 to translate. When the special-shaped bar 42 translates, it drives the tooth block 43 to translate. When the tooth block 43 translates, it drives the meshing gear 41 to rotate. When the gear 41 rotates, it drives the connecting disk 38 to rotate. When the connecting disk 38 rotates, it drives the crushing frame 39 to rotate. The crushing frame 39 rotates along the surface of the filter disk 35. When the crushing frame 39 rotates, the crushing blocks 40 inside the crushing frame 39 crush the frost condensed on the surface of the filter disk 35. The crushed frost on the surface of the filter disk 35 enters the inside of the crushing frame 39 under the rotation of the crushing frame 39.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to this. Within the scope of knowledge possessed by those skilled in the art to which the present invention pertains, various changes can be made without departing from the gist of the present invention.

Claims

1. A refrigerant filling device for an evaporator, comprising an equipment shell, an inlet pipe fixedly connected to the outside of the equipment shell, a flat-welded neck flange fixedly connected to the end of the inlet pipe away from the equipment shell, and a discharge pipe fixedly connected to the bottom of the equipment shell, characterized in that, A top plate is fixedly connected to the top of the device housing. Inside the device housing, there is a starting component for processing internal impurities. A limiting block and a triggering disc are arranged inside the starting component. The cooperation of the limiting block and the triggering disc can provide power for impurity processing. A limiting component for cooperating with the starting component is arranged on the limiting block. A rotating arm and a tension spring are arranged inside the limiting component. The cooperation of the rotating arm and the tension spring can limit the rotating column. A collecting component for cooperating with the limiting component is arranged at one end of the rotating column away from the rotating arm. A blocking plate and a support column are arranged inside the collecting component. The cooperation of the blocking plate and the support column can collect impurities.

2. The refrigerant filling device for an evaporator according to claim 1, wherein, Inside the starting component, there is a fixing strip which is fixedly connected to the inside of the device housing. A fixing frame is fixedly connected to the fixing strip. The top of the fixing frame is fixedly connected with a movable frame. A through groove for placing a lifting block is arranged on the movable frame. The lifting block is inserted into the through groove of the movable frame. The setting of the movable frame can limit the lifting block. One end of the lifting block away from the movable frame is fixedly connected to the limiting block. A bearing is arranged on the limiting block. The inner ring of the bearing on the limiting block is fixedly connected with a rotating column. The outer side of the rotating column is fixedly connected to the triggering disc. Two fitting columns are correspondingly fixedly connected to the triggering disc. One end of the fixing frame close to the fixing strip is fixedly connected to a fixing frame. A hollow groove for placing a translation strip is arranged on the fixing frame. The translation strip is inserted into the hollow groove of the fixing frame. Two limiting columns are correspondingly fixedly connected to both sides of the translation strip. And the shape of the hollow groove of the translation strip corresponds to the translation strip and the limiting columns. A knocking block is fixedly connected to the top of the translation strip. A blocking block is fixedly connected to the top of the knocking block. Two support rods are correspondingly fixedly connected to both ends of the top of the translation strip. A triggering column is fixedly connected to the top of each support rod. A knocking block is fixedly connected to one end of each triggering column.

3. The refrigerant filling device for an evaporator according to claim 2, characterized in that, A transmission component for transmitting power is arranged outside the fixing frame. A bearing plate is arranged inside the transmission component. The bearing plate is fixedly connected to the outside of the fixing frame. A bearing is arranged on the bearing plate. The inner ring of the bearing of the bearing plate is fixedly connected with a threaded column. The top of the threaded column is movably connected to the top plate. A machine housing is fixedly connected to the top of the top plate. A stepping motor is arranged inside the machine housing. The output shaft of the stepping motor is fixedly connected to the threaded column. A threaded block is threadedly connected to the threaded column. The setting of the threaded column can fix the threaded block. One end of the threaded block passes through the through groove of the movable frame and is fixedly connected to the limiting block.

4. The refrigerant filling device for an evaporator according to claim 3, wherein, A scraping component for cooperating with the starting component is arranged on the top of the discharge pipe. A filter disc is arranged inside the scraping component. Small round holes for refrigerant circulation are arranged on the filter disc. A support strip is fixedly connected to the inside of the device housing. A connecting disc is fixedly connected to the support strip. A bearing is arranged on the connecting disc. The inner ring of the bearing of the connecting disc is fixedly connected with a movable column. A gear is fixedly connected to the top of the movable column. A special-shaped strip is fixedly connected to the bottom of the translation strip. The special-shaped strip is in an S shape. A number of tooth blocks are fixedly connected to the special-shaped strip. And the number of tooth blocks is meshed with the gear. A crushing frame is fixedly connected to the bottom of the movable column. The crushing frame is of a hollow structure. A number of crushing blocks are correspondingly fixedly connected to the inside of the crushing frame. And the crushing blocks are in contact with the top of the filter disc.

5. The refrigerant charging device for an evaporator according to claim 4, characterized in that, The limiting component is provided with a positioning bar, which is fixedly connected to the bottom of the limiting block. The positioning bar can limit the tension spring. The rotating arm is fixedly connected to the end of the rotating column away from the trigger disc. The rotating arm consists of a ring and a long strip. There are two placing columns in total. One placing column is fixedly connected to the long strip part of the rotating arm and the positioning bar respectively. The two ends of the tension spring are fixedly connected to the two placing columns respectively. Two limiting columns are fixedly connected corresponding to the end of the limiting block close to the rotating arm, and the two limiting columns are distributed on both sides of the bottom of the ring part of the rotating arm.

6. The refrigerant charging device for an evaporator according to claim 5, characterized in that, The collection component is provided with a collection box, which is fixedly connected to the end of the rotating column close to the trigger disc. The collection box is provided with a number of small round holes for filtering the refrigerant. Two symmetrical blocking plates are arranged inside the collection box, and the two blocking plates are staggered. The collection box is provided with two starting holes for placing the blocking plates, and the two blocking plates are inserted into the corresponding starting holes. A filter plate is fixedly connected inside the collection box, and the filter plate is provided with a number of small round holes for discharging the refrigerant. Two sealing cylinders are fixedly connected to the collection box. A sealing pad is arranged inside each sealing cylinder. One support column is fixedly connected to each end of each sealing pad away from the sealing cylinder. Each sealing cylinder is provided with a placing hole for placing the support column, and the support column is inserted into the placing hole of the sealing cylinder. One end of each support column away from the sealing pad is fixedly connected to the corresponding blocking plate.

7. A refrigerant charging device for an evaporator according to claim 2, characterized in that, The knocking block consists of a disc and two long strips. When the trigger disc moves to a position corresponding to the trigger column, the fitting column on the trigger disc fits with the corresponding trigger column. The blocking block is triangular. When a long strip at the bottom of the trigger disc moves to a position corresponding to the blocking block, the long strip end of the trigger disc fits with the inclined angle of the blocking block.

8. The refrigerant filling device for an evaporator according to claim 2, characterized in that, The blocking block is triangular. When a long strip at the bottom of the trigger disc moves to a position corresponding to the blocking block, the long strip end of the trigger disc fits with the inclined angle of the blocking block.

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