Circulating cold and hot dual-supply static unit

Abstract

The application is suitable for the technical field of cold and heat unit, and provides a circulating cold and heat double-supply static unit, which comprises a unit, the top of the unit is hollow, ventilation grooves in communication with the inside of the unit are formed in the outer surfaces of four sides of the unit, a back-shaped filter frame for filtering dust is arranged in the inside of the top of the unit, four control sliding grooves are formed at the corners of the unit, the control sliding grooves are in communication with two adjacent ventilation grooves respectively, right-angle control sliding blocks are slidably connected in the control sliding grooves, one side of the control sliding blocks close to the ventilation grooves extends into the ventilation grooves, and scraper assemblies capable of scraping the surface filter screen of the back-shaped filter frame are arranged between the two control sliding blocks located in the ventilation grooves. The application can scrape off the dust attached to the surface of the back-shaped filter frame through the scraper assemblies, and the suction assemblies can suck the scraped dust into the dust suction groove, so that the problem that the filter screen holes of the back-shaped filter frame are blocked by dust during long-time use is prevented, and the use effect of the cold and heat double-supply static unit is affected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cold and heat unit, more particularly, it relates to a circulating cold and heat dual-supply static unit. BACKGROUND

[0002] The cold and heat dual-supply static unit is a device capable of providing refrigeration and heating functions at the same time, which is usually used for heating and refrigeration needs, and its working principle is based on heat pump technology, which forces heat to flow from a low-temperature object to a high-temperature object through a reverse cycle, and only a small amount of reverse cycle net work is consumed to obtain a larger heat supply or cold quantity.

[0003] Most of the existing cold and heat dual-supply static units generally use fans to actively cool the condenser in the unit when cooling. The traditional active cooling fan will suck external dust into the unit when running. In order to prevent dust from adhering to the condenser, a filter frame is provided on the outside of the condenser to isolate dust. Although the existing filter frame can isolate dust, the dust will gradually accumulate on the outer surface of the filter frame during long-term use, which will affect the ventilation efficiency of the filter frame, and even cause the mesh on the filter frame to be blocked, affecting the normal operation of the cold and heat dual-supply static unit. SUMMARY

[0004] In view of the deficiencies of the prior art, the purpose of the present application is to provide a circulating cold and heat dual-supply static unit which can automatically clean the surface dust of the filter frame and absorb the dust.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A circulating cold and heat dual-supply static unit, comprising a unit, the top of the unit is hollow, the outer surface of four sides of the unit is provided with a ventilation slot communicating with the inside of the unit, the inside of the top of the unit is provided with a back-shaped filter frame for filtering dust, four control sliding grooves are provided at the corners of the unit, the control sliding grooves are respectively communicated with two adjacent ventilation slots, a right-angle-shaped control sliding block is slidably connected in the control sliding groove, the side of the control sliding block close to the ventilation slot extends into the ventilation slot, and a scraper assembly capable of scraping the filter screen on the surface of the back-shaped filter frame is arranged between the two control sliding blocks in the ventilation slot.

[0007] A dust suction groove is provided on the bottom wall of the ventilation groove, and two placement plates are provided on the inner walls on both sides of the opposite sides of the dust suction groove. Filter covers are placed on the two placement plates, and the outer surface of the filter cover is in contact with the inner wall of the dust suction groove. Compression chambers are provided at the four corners of the unit, which are located directly below the control slide groove. A first piston is slidably connected in the compression chamber, and a push rod is provided on the upper surface of the first piston. The upper end of the push rod slides through the control slide groove and can contact the lower surface of the control slider. A first tension spring movably sleeved on the outer surface of the push rod is provided between the upper surface of the first piston and the top wall of the compression chamber. Suction components for sucking air in the dust suction groove are provided on the four sides of the unit.

[0008] The present invention is further configured as follows: a heat exchange pipe located in a return-shaped filter frame is provided in the unit, two cooling fans are provided on the top of the unit, and the exhaust port at the bottom of the cooling fan passes through the unit and is located on the inner side of the return-shaped filter frame.

[0009] The present invention is further configured as follows: a reciprocating screw is rotatably connected between the upper and lower inner walls of the control slide, the control slider is threadedly sleeved on the outer surface of the reciprocating screw, four motors are arranged at the four corners of the upper surface of the unit, and the four motors are simultaneously connected to a PLC controller, and the lower end of the motor output shaft rotates through the control slide and is connected to the upper end of the reciprocating screw.

[0010] The present invention is further configured as follows: a rotating shaft is provided on the surface of the scraper assembly close to the control slider, the other end of the rotating shaft is rotatably connected to the control slider, a control cavity is opened on the side of the control slider close to the scraper assembly, the end of the rotating shaft close to the control cavity rotates and passes through the control cavity, a worm gear is provided on the end of the rotating shaft located in the control cavity, and a worm is rotatably connected between the upper and lower inner walls of the control cavity and meshed with the worm gear.

[0011] The present invention is further configured as follows: a twist groove is provided in the worm gear, which extends from its upper and lower surfaces respectively; a twist rod is spirally provided in the twist groove; contact rods are provided at both upper and lower ends of the twist rod; the contact rod slides in the twist groove and does not contact the inner wall of the twist groove; the opposite ends of the upper and lower contact rods slide through the upper and lower surfaces of the control slider respectively; when the control slider moves upward, the end of the upper contact rod extending from the control slider can contact the top wall of the control slot; when the control slider moves downward, the end of the lower contact rod extending from the control slider can contact the bottom wall of the control slot.

[0012] The application is further provided with: the outer surface of the upper contact rod is provided with a locking groove arranged in parallel with the upper and lower sides, the vertical section of the locking groove is semicircular, the inner part of the control sliding block close to the locking groove is provided with a contraction cavity, the contraction cavity is provided with a locking rod, the other end of the locking rod is slidably penetrated into the locking groove and is fitted with the locking groove, the end of the locking rod in the contraction cavity is provided with an embedded plate which slides in the contraction cavity, and the embedded plate and the inner wall of the contraction cavity are provided with a third tension spring which is movably sleeved on the outer surface of the locking rod.

[0013] The application is further provided with: the scraper assembly comprises a main body, the surface of the main body is connected with the rotating shaft, the main body is provided with a scraping head which is in contact with the surface of the back-shaped filter frame on the side close to the back-shaped filter frame, the surface of the main body close to the scraping head is provided with a reset sliding groove, the other side of the scraping head extends into the reset sliding groove and slides in the reset sliding groove, the inner wall of the reset sliding groove towards the scraping head is provided with a limiting rod, the scraping head is provided with a limiting cavity, the other end of the limiting rod is slidably penetrated into the limiting cavity, the end of the limiting rod in the limiting cavity is provided with a limiting sliding plate which slides in the limiting cavity, and the limiting sliding plate and the inner wall of the limiting cavity are provided with a fourth tension spring which is movably sleeved on the outer surface of the limiting rod.

[0014] The application is further provided with: the suction assembly comprises two suction main pipes, the two suction main pipes are embedded in the side wall of the machine set and are located directly below the dust suction groove, the suction main pipe is provided with a plurality of suction sub-pipes which are penetrated into the dust suction groove, the top of the compression cavity is provided with a first suction pipe which is in communication with the suction main pipe, the first suction pipe is provided with a first one-way valve which can only transport air to the compression cavity, the four sides of the machine set are embedded with two continuous Venturi tubes which are located directly below the dust suction groove, the throat of the continuous Venturi tube is provided with a throat suction pipe which is penetrated into the dust suction groove, the top of the compression cavity is provided with a first air conveying pipe which is penetrated into the continuous Venturi tube, the side of the continuous Venturi tube away from the compression cavity is provided with a one-way air outlet pipe which is penetrated out of the outer surface of the machine set, the first air conveying pipe is provided with a second one-way valve which can only transport air to the continuous Venturi tube, the bottom of the compression cavity is provided with a second suction pipe which is also penetrated into the suction main pipe, the bottom of the compression cavity is provided with a second air conveying pipe which is also penetrated into the continuous Venturi tube, the second suction pipe is also provided with the first one-way valve, and the second air conveying pipe is also provided with the second one-way valve.

[0015] The application is further provided with: the side wall of the unit is embedded with a booster pipe near the compression cavity, the other end of the first and second gas conveying pipes can also penetrate into the bottom of the booster pipe, a crankshaft is rotationally connected at the middle position of the booster pipe, the crankshaft handle is rotationally sleeved with a rotating plate, the other end of the rotating plate is hingedly connected with a second piston sliding in the booster pipe, a second tension spring is arranged between the lower surface of the second piston and the bottom wall of the booster pipe, the top of the booster pipe is provided with a third suction pipe in communication with the suction main pipe, the third suction pipe is also provided with a first one-way valve, the top of the booster pipe is also provided with a fourth gas conveying pipe in communication with the continuous venturi pipe, the bottom of the booster pipe is provided with a third gas conveying pipe with the other end in communication with the continuous venturi pipe, the third and fourth gas conveying pipes are also provided with a second one-way valve.

[0016] The application has the advantages of:

[0017] Firstly, the dust adhered to the surface of the back-shaped filter frame can be scraped off by the scraper assembly, and the dust scraped off can be sucked into the dust suction groove by the suction assembly, so that the problem that the dust scraped off by the scraper assembly cannot be collected in the dust suction groove is avoided, the collection efficiency of the impurities is improved, and the problem that the filter screen holes of the back-shaped filter frame are blocked by dust during long-time use is prevented, thereby affecting the use effect of the cold and hot dual-supply static unit.

[0018] Secondly, the inclination angle of the scraper assembly is automatically adjusted according to the moving mode of the control slider when the control slider moves, so that the cleaning effect of the back-shaped filter frame is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the circulating cold and hot dual-supply static unit of the application;

[0020] Figure 2 It is a side view plan of the internal structure of the unit of the application;

[0021] Figure 3 It is Figure 2 the enlarged view of A in the middle;

[0022] Figure 4 It is Figure 3 the enlarged view of B in the middle;

[0023] Figure 5 It is a sectional view schematic view of the scraper assembly of the application;

[0024] Figure 6 It is Figure 2 the enlarged view of C in the middle;

[0025] Figure 7 It is a side view plan of the second embodiment of the suction component of the application.

[0026] Figure: 1, unit; 2, ventilation slot; 3, circular filter frame; 4, cooling fan; 5, control slide; 6, control slider; 7, scraper assembly; 71, rotating shaft; 72, control chamber; 73, worm gear; 74, worm; 75, twist groove; 76, twist rod; 77, contact rod; 78, locking slot; 79, retraction chamber; 710, locking rod; 711, internal plate; 712, third tension spring;

[0027] 721, main body; 722, scraper head; 723, reset chute; 724, limit cavity; 725, limit rod; 726, limit slide; 727, fourth tension spring;

[0028] 8. Dust suction trough; 81. Filter cover; 82. Placement plate;

[0029] 9. Compression chamber; 10. Push rod; 11. First piston; 12. First tension spring; 13. First suction pipe; 14. First air supply pipe; 15. Suction main pipe; 16. Suction auxiliary pipe; 17. Continuous Venturi tube; 18. Throat suction pipe; 19. Second suction pipe; 20. Second air supply pipe; 21. One-way air outlet pipe; 22. Booster pipe; 23. Crankshaft; 24. Rotating plate; 25. Second piston; 26. Second tension spring; 27. Third air supply pipe; 28. Third suction pipe; 29. ​​Fourth air supply pipe. DETAILED DESCRIPTION

[0030] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] See also Figures 1-7 , the present invention provides the following technical solutions:

[0033] The utility model relates to a circulating cold and hot double supply static unit, including unit 1, the top of unit 1 is hollow, and the four sides of unit 1 are all provided with ventilation slot 2 communicated with the inside, and the inside of the top of unit 1 is provided with back type filter frame 3 for filtering dust, and unit 1 is provided with heat exchange pipeline in back type filter frame 3, and the top of unit 1 is provided with two heat dissipation fans 4, and the bottom suction port of heat dissipation fan 4 penetrates into unit 1 and is located in the inside of back type filter frame 3, when using, heat dissipation fan 4 starts, and the air in back type filter frame 3 is extracted, at this time, the air pressure in back type filter frame 3 is reduced, and the external cold air enters back type filter frame 3 under the action of atmospheric pressure, and back type filter frame 3 separates the dust in the air, prevents the dust from adhering to heat exchange pipeline and influences heat exchange efficiency.

[0034] Unit 1 is provided with four control sliding grooves 5 at the four corners, and the control sliding groove 5 is communicated with the adjacent two ventilation slots 2, and the reciprocating screw rod is rotatably connected between the inner walls of the upper and lower sides of the control sliding groove 5, and the control sliding block 6 is threadedly sleeved on the outer surface of the reciprocating screw rod, and the control sliding block 6 is in the shape of a right angle, and the side of the control sliding block 6 close to the ventilation slot 2 extends into the ventilation slot 2, and the two control sliding blocks 6 located in the ventilation slot 2 are provided with a scraper assembly 7 capable of scraping the surface filter screen of the back type filter frame 3, and the four corners of the upper surface of the unit 1 are provided with four motors, and the four motors are simultaneously connected with a PLC controller for controlling the operation and closing of the four motors, ensuring the synchronization of the displacement of the four control sliding blocks 6, and the lower end of the motor output shaft is rotatably penetrated into the control sliding groove 5 and connected with the upper end of the reciprocating screw rod.

[0035] In use, the motor starts, and the motor output shaft synchronously drives the reciprocating screw rod to rotate, so that the control sliding block 6 is displaced up and down under the transmission of the reciprocating screw rod, thereby achieving the purpose of controlling the displacement of the scraper assembly 7 up and down, so that the scraper assembly 7 can scrape off the dust adhering to the surface of the back type filter frame 3, thereby preventing the problem of the filter screen hole of the back type filter frame 3 being blocked by dust during long-term use, which affects the use effect of the cold and hot double supply static unit.

[0036] The surface of the scraper assembly 7 close to the control sliding block 6 is provided with a rotating shaft 71, the other end of the rotating shaft 71 is rotatably connected with the control sliding block 6, the side of the control sliding block 6 close to the scraper assembly 7 is provided with a control cavity 72, the end of the rotating shaft 71 close to the control cavity 72 is rotatably penetrated into the control cavity 72, the end of the rotating shaft 71 located in the control cavity 72 is provided with a worm wheel 73, and the worm wheel 73 is rotatably connected with a worm 74 meshed connected with the worm wheel 73 between the inner walls of the upper and lower sides of the control cavity 72.

[0037] In use, the control worm 74 rotates, and the worm wheel 73 rotates under the transmission of the helical teeth of the control worm 74, and the rotating shaft 71 synchronously rotates the scraper assembly 7, so that the inclination angle of the scraper assembly 7 can be adjusted.

[0038] The worm 74 is provided with a spiral groove 75 extending along the upper and lower surfaces of the worm 74, and a spiral rod 76 is arranged in the spiral groove 75. The upper and lower ends of the spiral rod 76 are provided with contact rods 77, which slide in the spiral groove 75 and do not contact the inner wall of the spiral groove 75. The opposite ends of the upper and lower contact rods 77 respectively slide through the upper and lower surfaces of the control slider 6. When the control slider 6 moves upward, the upper contact rod 77 extending out of the control slider 6 can contact the top wall of the control sliding groove 5. When the control slider 6 moves downward, the lower contact rod 77 extending out of the control slider 6 can contact the bottom wall of the control sliding groove 5.

[0039] When the upper contact rod 77 contacts the top wall of the control sliding groove 5, the top wall of the control sliding groove 5 will press the contact rod 77, so that the contact rod 77 pushes the spiral rod 76 to move downward in the spiral groove 75. Therefore, the worm 74 rotates under the driving of the spiral rod 76, so that the shaft 71 drives the scraper assembly 7 to tilt downward. When the lower contact rod 77 contacts the bottom wall of the control sliding groove 5, the bottom wall of the control sliding groove 5 will form upward displacement of the contact rod 77, so that the contact rod 77 pushes the spiral rod 76 to move upward in the spiral groove 75. Therefore, the worm 74 can be driven to rotate in the opposite direction, so that the shaft 71 drives the scraper assembly 7 to tilt upward. By using the above structure, when the control slider 6 moves upward to the top end and needs to move downward, the scraper assembly 7 can be automatically controlled to tilt downward. Conversely, the scraper assembly 7 can be automatically controlled to tilt upward. According to the moving direction of the control slider 6, the state of the scraper assembly 7 is automatically controlled, which further improves the cleaning effect of the dust on the surface of the return type filter frame 3.

[0040] In the embodiment, the control structure of the scraper assembly 7 is in the form of worm and gear drive. Since the transmission between the worm and the gear has self-locking effect, the problem of self-rotation of the scraper assembly 7 after the inclination angle of the scraper assembly 7 is adjusted does not occur, which further ensures the stability of the scraper assembly 7 during use.

[0041] The outer surface of the upper contact rod 77 is provided with a locking groove 78 arranged in parallel with the upper and lower sides, the vertical section of the locking groove 78 is semicircular, the inner portion of the control sliding block 6 close to the locking groove 78 is provided with a contraction cavity 79, the contraction cavity 79 is provided with a locking rod 710, the other end of the locking rod 710 is slidably penetrated into the locking groove 78 and is in conformity with the locking groove 78, the one end of the locking rod 710 located in the contraction cavity 79 is provided with an inner plate 711 which is slidably arranged in the contraction cavity 79, the inner plate 711 and the inner wall of the contraction cavity 79 are provided with a third tension spring 712 which is movably sleeved on the outer surface of the locking rod 710, when the third tension spring 712 is not affected by the tension, the third tension spring 712 will form a tension on the inner plate 711, so that the initial position of the one end of the locking rod 710 is extended into the locking groove 78, thereby forming a limiting effect on the contact rod 77 and the spiral rod 76, and the downward displacement of the spiral rod 76 and the contact rod 77 under the action of inertia is avoided as much as possible, and the stability after the rotation of the control scraper assembly 7 is ensured.

[0042] When the upper end of the upper contact rod 77 is extended out of the upper surface of the control sliding block 6, the one end of the locking rod 710 is extended into the lower locking groove 78, so that when the control sliding block 6 is upwardly displaced to the top end, the upper contact rod 77 is in contact with the top wall of the control sliding groove 5 after the upper contact rod 77 is in contact with the top wall of the control sliding groove 5, the contact rod 77 pushes the spiral rod 76 to be downwardly displaced, because the shape of the locking groove 78 is semicircular, the inner wall of the locking groove 78 will extrude the locking rod 710, so that the locking rod 710 is displaced to one side of the contraction cavity 79, at the same time, the inner plate 711 pulls the third tension spring 712 and makes the third tension spring 712 be stretched, when the lower end of the lower contact rod 77 is pushed out of the lower surface of the control sliding block 6, the upper locking groove 78 is slid to be in the same horizontal position with the locking rod 710, so that the locking rod 710 is displaced into the locking groove 78 under the pulling of the third tension spring 712, on the contrary, when the lower end of the lower contact rod 77 is in contact with the bottom wall of the control sliding groove 5, the locking rod 710 can be re-locked into the lower locking groove 78.

[0043] When the rotating shaft 71 drives the scraper assembly 7 to rotate, the side of the scraper assembly 7 in contact with the back-shaped filter frame 3 is prone to be stuck with the surface of the back-shaped filter frame 3. Further, the scraper assembly 7 comprises a main body 721, the surface of the main body 721 is connected with the rotating shaft 71, the side of the main body 721 close to the back-shaped filter frame 3 is provided with a scraping head 722 in contact with the surface of the back-shaped filter frame 3, the surface of the main body 721 close to the scraping head 722 is provided with a reset sliding groove 723, the other side of the scraping head 722 extends into the reset sliding groove 723 and slides in the reset sliding groove 723, the inner wall of the reset sliding groove 723 towards the scraping head 722 is provided with a limiting rod 725, the scraping head 722 is provided with a limiting cavity 724, the other end of the limiting rod 725 slides into the limiting cavity 724, and the end of the limiting rod 725 in the limiting cavity 724 is provided with a limiting sliding plate 726 sliding in the limiting cavity 724, and the limiting sliding plate 726 and the inner wall of the limiting cavity 724 are provided with a fourth tension spring 727 movably sleeving on the outer surface of the limiting rod 725.

[0044] In use, the rotating shaft 71 drives the scraper assembly 7 to rotate, at this time the scraping head 722 will extrude the surface of the back-shaped filter frame 3, so that the scraping head 722 slides into the reset sliding groove 723, and the limiting sliding plate 726 slides in the limiting cavity 724, and the fourth tension spring 727 is stressed and stretched, so that the scraping head 722 can always be in contact with the surface of the back-shaped filter frame 3 during the rotation of the scraper assembly 7, and the mechanical sticking problem between the scraper assembly 7 and the back-shaped filter frame 3 is avoided.

[0045] The bottom wall of the ventilation groove 2 is provided with a dust suction groove 8, the dust suction groove 8 is located directly below the side of the back-shaped filter frame 3, and the opposite two side walls of the dust suction groove 8 are provided with two placing plates 82, the two placing plates 82 are placed with a filter cover 81, and the outer surface of the filter cover 81 is attached to the inner wall of the dust suction groove 8, so that the dust scraped off by the scraper assembly 7 can fall onto the filter cover 81.

[0046] However, in actual use, the dust scraped off by the scraper assembly 7 is attached to the scraper assembly 7 under the action of the suction airflow of the cooling fan 4, and it is not easy to collect these scraped dust, therefore, a compression cavity 9 is provided at each corner of the unit 1, the compression cavity 9 is located directly below the control sliding groove 5, a first piston 11 is slidably connected in the compression cavity 9, the upper surface of the first piston 11 is provided with a top rod 10, the upper end of the top rod 10 slides through the control sliding groove 5 and can be in contact with the lower surface of the control sliding block 6, the first piston 11 and the top wall of the compression cavity 9 are provided with a first tension spring 12 movably sleeving on the outer surface of the top rod 10, when the first tension spring 12 is not pulled, the first tension spring 12 will form a pulling force on the first piston 11, so that the initial position of the first piston 11 is located at the top of the compression cavity 9.

[0047] The four sides of the unit 1 are embedded with two suction main pipes 15 located directly below the dust suction groove 8, the suction main pipes 15 are provided with a plurality of suction sub-pipes 16 penetrating into the dust suction groove 8, and the suction sub-pipes 16 are in communication with the suction main pipes 15, the top of the compression cavity 9 is provided with a first suction pipe 13 penetrating into the suction main pipe 15, the first suction pipe 13 is located directly above the initial position of the first piston 11, when the control slider 6 is displaced downward, the top rod 10 is extruded, and the first piston 11 is displaced downward in the compression cavity 9, at the same time, the first tension spring 12 is stressed and stretched, the air at the top of the compression cavity 9 expands, the air pressure decreases, and therefore the external air is sucked into the dust suction groove 8 under the action of air pressure, and enters the top of the compression cavity 9 through the suction main pipe 15 and the suction sub-pipe 16, at the same time, when the air is sucked into the dust suction groove 8, the scraper assembly 7 is displaced to the bottom, and the impurities attached to the surface of the scraper assembly 7 are sucked into the dust suction groove 8, thereby avoiding the problem that the dust suction groove 8 cannot collect the dust scraped off by the scraper assembly 7, and improving the collection efficiency of the impurities.

[0048] When the control slider 6 is displaced upward, the first tension spring 12 drives the first piston 11 to displace upward, at this time, the first piston 11 extrudes the air at the top of the compression cavity 9, in order to avoid the air entering the suction main pipe 15 through the first suction pipe 13, a first one-way valve that can only transport air to the compression cavity 9 is arranged in the first suction pipe 13, thereby preventing the compressed gas in the compression cavity 9 from entering the suction main pipe 15, but if the air at the top of the compression cavity 9 cannot be discharged, the first piston 11 cannot move, therefore, the four sides of the unit 1 are embedded with two continuous Venturi tubes 17 located directly below the dust suction groove 8, the continuous Venturi tubes 17 are composed of a plurality of Venturi tubes arranged transversely, the throat of the continuous Venturi tube 17 is provided with a throat suction pipe 18 penetrating into the dust suction groove 8, the top of the compression cavity 9 is provided with a first air conveying pipe 14 penetrating into the continuous Venturi tube 17, and the side of the continuous Venturi tube 17 away from the compression cavity 9 is provided with a one-way air outlet pipe 21 penetrating out of the surface of the unit 1, and a second one-way valve that can only transport air to the continuous Venturi tube 17 is arranged in the first air conveying pipe 14, thereby preventing the continuous Venturi tube 17 from being sucked when the suction main pipe 15 is sucking, when the first piston 11 is displaced upward, the first piston 11 transports the air at the top of the compression cavity 9 to the continuous Venturi tube 17 through the first air conveying pipe 14, so that the air flows in the continuous Venturi tube 17, when the airflow passes through the converging section of the continuous Venturi tube 17, the flow rate at the throat increases, according to Bernoulli's law, the pressure in the throat suction pipe 18 decreases, so that the throat suction pipe 18 also forms a suction effect on the dust suction groove 8, thereby achieving the purpose of utilizing the exhaust gas of the compression cavity 9, and further improving the dust suction effect of the dust suction groove 8.

[0049] When the first piston 11 is displaced in the compression chamber 9, the air at the bottom of the compression chamber 9 is also changed, therefore, a second suction pipe 19 is arranged at the bottom of the compression chamber 9 and penetrates into the suction main pipe 15, a second gas delivery pipe 20 is arranged at the bottom of the compression chamber 9 and penetrates into the continuous Venturi tube 17, and the second suction pipe 19 is also provided with a first one-way valve and the second gas delivery pipe 20 is also provided with a second one-way valve, therefore, when the first piston 11 is displaced downward, the bottom of the compression chamber 9 can also suck and deliver the gas into the continuous Venturi tube 17, so that the suction sub-pipe 16 and the throat suction pipe 18 can always form a suction effect in the dust collection groove 8, further ensuring the suction effect of the dust collection groove 8 on the dust.

[0050] If the first gas delivery pipe 14 and the second gas delivery pipe 20 are directly input into the continuous Venturi tube 17, the suction force generated by the throat suction pipe 18 is low, in order to ensure the suction effect of the continuous Venturi tube 17, on the basis of the above scheme, a booster pipe 22 is arranged, the booster pipe 22 is embedded into the side wall of the unit 1, the other end of the first gas delivery pipe 14 and the second gas delivery pipe 20 can also penetrate into the bottom of the booster pipe 22, so that the gas output by the first gas delivery pipe 14 and the second gas delivery pipe 20 is first input into the booster pipe 22, a crankshaft 23 is rotationally connected to the middle position of the booster pipe 22, a rotating plate 24 is rotationally sleeved on the crankshaft handle of the crankshaft 23, the other end of the rotating plate 24 is hingedly connected with a second piston 25 which slides in the booster pipe 22, a second tension spring 26 is arranged between the lower surface of the second piston 25 and the bottom wall of the booster pipe 22, the top of the booster pipe 22 is provided with a third suction pipe 28 which communicates with the suction main pipe 15, the third suction pipe 28 is also provided with a first one-way valve, the top of the booster pipe 22 is also provided with a fourth gas delivery pipe 29 which communicates with the continuous Venturi tube 17, the bottom of the booster pipe 22 is provided with a third gas delivery pipe 27 which has the other end communicating with the continuous Venturi tube 17, the third gas delivery pipe 27 and the fourth gas delivery pipe 29 are also provided with second one-way valves.

[0051] When the first gas pipe 14 or the second gas pipe 20 delivers gas into the booster pipe 22, the gas will form an upward pushing force on the second piston 25, so that the second piston 25 is displaced upward, the second tension spring 26 is forced and stretched, and the crankshaft 23 is driven to rotate, the air at the top of the booster pipe 22 is squeezed into the continuous venturi 17 through the fourth gas pipe 29, when the air in the compression chamber 9 is completely input into the booster pipe 22, the second piston 25 is displaced upward to the top end, the crank of the crankshaft 23 is rotated to the top end, at this time, the crank of the crankshaft 23 will form a downward pushing force on the second piston 25 under the action of inertia, and the second tension spring 26 pulls the second piston 25 to displace downward, so that the second piston 25 can input the air at the bottom of the booster pipe 22 into the continuous venturi 17 through the third gas pipe 27, and at the same time, the third suction pipe 28 can also produce a suction effect during the downward displacement of the second piston 25, further improving the suction force of the suction main pipe 15, and using the further pressurization to input the gas into the continuous venturi 17, the speed and flow of the gas in the continuous venturi 17 are accelerated, and the suction effect of the throat suction pipe 18 is improved.

[0052] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. It should be understood by those skilled in the art that the scope of the application involved in the present application is not limited to the technical solutions formed by the specific combinations of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features disclosed in the present application (but not limited to) having similar functions to form technical solutions.

Claims

1. A circulating cold and hot dual supply static unit, comprising a unit (1), the top of the unit (1) is hollow, ventilation grooves (2) are formed in the outer surfaces of the four sides of the unit (1) and communicate with the interiors of the unit (1), and a back-shaped filter frame (3) for filtering dust is arranged in the interior of the top of the unit (1), characterized in that: Four control sliding grooves (5) are arranged at the four corners of the unit (1), the control sliding grooves (5) are communicated with the adjacent two ventilation grooves (2) respectively, the control sliding grooves (5) are slidably connected with the right-angle control sliding blocks (6), the control sliding blocks (6) extend into the ventilation grooves (2) on the side close to the ventilation grooves (2), the two control sliding blocks (6) between the ventilation grooves (2) are provided with the scraping plate assembly (7) which scrapes the surface filter screen of the back-shaped filter frame (3); ​ The bottom wall of the ventilation groove (2) is provided with the dust suction groove (8), the opposite two inner walls of the dust suction groove (8) are provided with two placing plates (82), the two placing plates (82) are placed with the filter cover (81), the outer surface of the filter cover (81) is attached to the inner wall of the dust suction groove (8), the four corners of the unit (1) are provided with the compression cavity (9) which is located directly below the control sliding groove (5), the compression cavity (9) is slidably connected with the first piston (11), the upper surface of the first piston (11) is provided with the top rod (10), the upper end of the top rod (10) is slidably penetrated into the control sliding groove (5) and is in contact with the lower surface of the control sliding block (6), the first tension spring (12) is arranged between the upper surface of the first piston (11) and the top wall of the compression cavity (9) and is movably sleeved on the outer surface of the top rod (10), the four sides of the unit (1) are provided with the suction assembly which suctions the air in the dust suction groove (8); The suction assembly comprises two suction main pipes (15), the two suction main pipes (15) are embedded in the side wall of the unit (1) and are located directly below the dust suction groove (8), the suction main pipe (15) is provided with a plurality of suction sub-pipes (16) which are penetrated into the dust suction groove (8), the top of the compression cavity (9) is provided with the first suction pipe (13) which is communicated with the suction main pipe (15), the first suction pipe (13) is provided with the first one-way valve which can only deliver the air to the compression cavity (9), the four sides of the unit (1) are embedded with two continuous venturi tubes (17) which are located directly below the dust suction groove (8), the throat of the continuous venturi tube (17) is provided with the throat suction pipe (18) which is penetrated into the dust suction groove (8), the top of the compression cavity (9) is provided with the first gas delivery pipe (14) which is penetrated into the continuous venturi tube (17), the side of the continuous venturi tube (17) away from the compression cavity (9) is provided with the one-way air outlet pipe (21) which is penetrated out of the outer surface of the unit (1), the first gas delivery pipe (14) is provided with the second one-way valve which can only deliver the gas to the continuous venturi tube (17), the bottom of the compression cavity (9) is provided with the second suction pipe (19) which is also penetrated into the suction main pipe (15), the bottom of the compression cavity (9) is provided with the second gas delivery pipe (20) which is also penetrated into the continuous venturi tube (17), the second suction pipe (19) is also provided with the first one-way valve, and the second gas delivery pipe (20) is also provided with the second one-way valve.

2. The cyclic chiller and heater dual supply static unit according to claim 1, characterized in that: The unit (1) is provided with the heat exchange pipeline which is located in the back-shaped filter frame (3), the top of the unit (1) is provided with two heat dissipation fans (4), the bottom air suction port of the heat dissipation fan (4) is penetrated into the unit (1) and is located on the inner side of the back-shaped filter frame (3).

3. The cyclic chiller and heater dual supply static unit of claim 1, wherein: The control sliding groove (5) is rotationally connected between the inner walls of the upper and lower sides, a reciprocating screw rod is arranged on the outer surface of the reciprocating screw rod, four motors are arranged on the upper surface of the unit (1), the four motors are simultaneously connected with a PLC controller, the lower end of the motor output shaft rotationally penetrates into the control sliding groove (5) and is connected with the upper end of the reciprocating screw rod.

4. The cyclic chiller and heater dual supply static unit of claim 1, wherein: The surface of the control sliding block (6) is provided with a rotating shaft (71), the other end of the rotating shaft (71) is rotationally connected with the control sliding block (6), the side of the control sliding block (6) close to the scraper assembly (7) is provided with a control cavity (72), the end of the rotating shaft (71) close to the control cavity (72) rotationally penetrates into the control cavity (72), the end of the rotating shaft (71) in the control cavity (72) is provided with a worm gear (73), the control cavity (72) is rotationally connected with a worm (74) which is meshingly connected with the worm gear (73) between the inner walls of the upper and lower sides.

5. The cyclic chiller and heater dual supply static unit according to claim 4, characterized in that: The worm (74) is provided with a spiral groove (75) extending from the upper and lower sides, the spiral groove (75) is spirally provided with a spiral rod (76), the upper and lower ends of the spiral rod (76) are provided with contact rods (77), the contact rods (77) slide in the spiral groove (75) and do not contact the inner wall of the spiral groove (75), the opposite ends of the upper and lower contact rods (77) slide and penetrate out of the upper and lower surfaces of the control sliding block (6), when the control sliding block (6) is displaced upward, the upper contact rod (77) extends out of the end of the control sliding block (6) and contacts the top wall of the control sliding groove (5), when the control sliding block (6) is displaced downward, the lower contact rod (77) extends out of the end of the control sliding block (6) and contacts the bottom wall of the control sliding groove (5).

6. The cyclic chiller and heater dual supply static unit of claim 5, wherein: The outer surface of the upper contact rod (77) is provided with a locking groove (78) which is arranged in parallel with the upper and lower sides, the vertical section of the locking groove (78) is semicircular, the inside of the control sliding block (6) close to the locking groove (78) is provided with a contraction cavity (79), the contraction cavity (79) is provided with a locking rod (710), the other end of the locking rod (710) slides and penetrates into the locking groove (78) and is fitted with the locking groove (78), the end of the locking rod (710) in the contraction cavity (79) is provided with an embedded plate (711) which slides in the contraction cavity (79), the third tension spring (712) is movably arranged on the outer surface of the locking rod (710) between the embedded plate (711) and the inner wall of the contraction cavity (79).

7. The cyclic chiller and heater dual supply static unit according to claim 6, characterized in that: The scraper assembly (7) comprises a main body (721), the surface of the main body (721) is connected with the rotating shaft (71), the main body (721) is provided with a scraping head (722) in contact with the surface of the return type filter frame (3) on the side close to the return type filter frame (3), the surface of the main body (721) close to the scraping head (722) is provided with a reset sliding groove (723), the other side of the scraping head (722) extends into the reset sliding groove (723) and slides in the reset sliding groove (723), the inner wall of the reset sliding groove (723) towards the scraping head (722) is provided with a limiting rod (725), the scraping head (722) is provided with a limiting cavity (724), the other end of the limiting rod (725) slides through and penetrates into the limiting cavity (724), the one end of the limiting rod (725) in the limiting cavity (724) is provided with a limiting sliding plate (726) sliding in the limiting cavity (724), the limiting sliding plate (726) and the inner wall of the limiting cavity (724) are provided with a fourth tension spring (727) movably sleeving on the outer surface of the limiting rod (725).

8. The cyclic chiller and heater dual supply static unit according to claim 7, characterized in that: The side wall of the unit (1) is embedded with a booster pipe (22) close to the compression cavity (9), the other end of the first gas conveying pipe (14) and the second gas conveying pipe (20) penetrates into the bottom of the booster pipe (22), the middle position of the booster pipe (22) is rotatably connected with a crankshaft (23), the crankshaft handle of the crankshaft (23) is rotatably sleeved with a rotating plate (24), the other end of the rotating plate (24) is hingedly connected with a second piston (25) sliding in the booster pipe (22), the lower surface of the second piston (25) and the bottom wall of the booster pipe (22) are provided with a second tension spring (26), the top of the booster pipe (22) is provided with a third suction pipe (28) in communication with the suction main pipe (15), the third suction pipe (28) is also provided with a first one-way valve, the top of the booster pipe (22) is also provided with a fourth gas conveying pipe (29) in communication with the continuous venturi pipe (17), the bottom of the booster pipe (22) is provided with a third gas conveying pipe (27) with the other end in communication with the continuous venturi pipe (17), the third gas conveying pipe (27) and the fourth gas conveying pipe (29) are also provided with a second one-way valve.

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