A cryogenic cooling circulation pump for a laser device

Abstract

The utility model discloses a low temperature cooling circulating pump for laser equipment applied to the field of low temperature cooling circulating pump, including circulating pump body, circulating pump body all is provided with vent around, and the fixed ring is fixedly provided on circulating pump body, and the fixed ring is provided with two and is spaced distribution up and down, and two fixed rings are located above and below vent respectively, and the movable support is slidably installed on circulating pump body still, and the flexible cover is fixed between hollow ring top and the bottom of fixed ring top, through the cooperation of flexible cover and movable support, fixed ring, staff only needs to promote or press down and pull the ring, can make flexible cover unroll or fold up, thereby makes circulating pump body when not using dustproof protection to it through flexible cover, and when using can conveniently open flexible cover, and need not to remove the dismounting of flexible cover, uses more convenient, is more applicable to the protection demand of existing low temperature cooling circulating pump.

Description

Technical Field

[0001] This utility model relates to the field of cryogenic cooling circulation pumps, and in particular to a cryogenic cooling circulation pump for laser equipment. Background Technology

[0002] Cryogenic cooling circulation pumps are devices used in various chemical, biopharmaceutical, and physical experiments that require maintaining low-temperature conditions, including cryogenic cooling and temperature control of the heat-generating parts of laser equipment.

[0003] Existing technology (patent document with publication number "CN212744499U") discloses a low-temperature cooling circulating pump, including a circulating pump body. A heat dissipation vent is provided on the front of the circulating pump body, and a temperature display is fixedly mounted on the front of the circulating pump body. Universal wheels are fixedly connected to the lower surface of the circulating pump body, and a sliding groove is provided on the upper surface of the circulating pump body. This low-temperature cooling circulating pump, by having a dustproof device on one inner wall of the sliding groove, including a first magnet, achieves the effect of preventing dust and insects from entering the heat dissipation vent when the circulating pump body is not in use. This solves the problem that when the circulating pump body is idle, the open heat dissipation vent is prone to accumulating heavy dust and insects inside, which would seriously affect the cooling effect and service life of the circulating pump body when it needs to be used again.

[0004] Based on the above search and combined with existing technology, it was found that existing cryogenic cooling circulation pumps require the removal or placement of dustproof shielding components on the side to allow ventilation openings to be connected. However, since most existing cryogenic cooling circulation pumps have ventilation openings on all four sides (usually located in the lower half of the pump body for ventilation purposes), the shielding components can only be removed. Repeated disassembly and reassembly is not only cumbersome, but also prone to loss due to improper management, which causes certain inconveniences in actual use. Summary of the Invention

[0005] The core of this invention lies in solving the problems of repeated disassembly and assembly in existing technologies, which are not only cumbersome but also prone to loss due to improper management, resulting in inconvenience during actual use. Furthermore, the combination of a dust collection box and a follow-up dust collection mechanism achieves both shielding and dust removal, leading to better performance in actual use.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A cryogenic cooling circulating pump for laser equipment includes a circulating pump body, with vents provided around the circulating pump body. Two fixing rings are fixedly sleeved on the circulating pump body and are distributed vertically at intervals. The two fixing rings are located above and below the vents, respectively. The circulating pump body is also slidably mounted with a movable bracket, which includes a lifting ring, a hollow ring, and connecting rods. The lifting ring is C-shaped and slidably clamped onto the circulating pump body. The lifting ring is located above the fixed ring above. The hollow ring is a ring body and is slidably sleeved onto the circulating pump body. The hollow ring is located between the two fixed rings. Multiple connecting rods are provided and are located at the four corners of the circulating pump body. The upper and lower ends of the multiple connecting rods are fixed to the bottom of the lifting ring and the top of the hollow ring. The lifting ring and the hollow ring are magnetically attracted to the two fixed rings. A flexible cover is fixed between the top of the hollow ring and the bottom of the upper fixed ring. The flexible cover is a flexible and foldable ring cover. When the bottom of the hollow ring and the top of the lower fixed ring attract each other, the flexible cover is fully unfolded and covers the outside of the air vents around the circulating pump body. At this time, the flexible cover, the two fixed rings, and the hollow ring form a closed cover.

[0008] By using the flexible cover in conjunction with the movable bracket and fixing ring, the operator can simply lift or press down the lifting ring to unfold or retract the flexible cover. This allows the circulating pump body to be protected from dust by the flexible cover when not in use, while the flexible cover can be easily opened when in use without disassembling or removing it, making it more convenient to use. At the same time, it can completely cover multiple vents around the circulating pump body, making it more suitable for the protection needs of existing cryogenic cooling circulating pumps.

[0009] Furthermore, a dust collection box is fixed to the back of the circulating pump body. The dust collection box is located above the upper fixing ring. A door that closes the opening of the side wall of the dust collection box is hinged to one side of the dust collection box. The door and the dust collection box form a sealed box. The dust collection box is equipped with a follow-up dust collection mechanism. The lower end of the follow-up dust collection mechanism extends to the hollow ring and is fixed and connected to the top of the hollow ring. Multiple evenly distributed dust collection holes are opened on the inner side of the hollow ring near the air vent.

[0010] Furthermore, the follow-up vacuuming mechanism includes a movable stopper plate and a follow-up tube. The movable stopper plate is slidably connected to the dust collection box, and the periphery of the movable stopper plate slides against the inner side of the dust collection box. The upper end of the follow-up tube is integrally formed with the movable stopper plate, and the lower end of the follow-up tube slides through the bottom of the dust collection box and is fixed and connected to the hollow ring. The movable stopper plate and the follow-up tube form a vacuuming channel with an opening located above the movable stopper plate.

[0011] Furthermore, lifting handles are fixed on both sides of the top of the lifting ring, and the dust collection box is located inside the notch of the lifting ring.

[0012] Preferably, the upper opening of the dust suction channel is plugged with a sealing plug, and a bracket is fixed to the top of the movable plug plate. The bracket is a "7" shaped bracket, and a compression spring is fixed to the bottom of the crossbar of the bracket. The lower end of the compression spring is fixed to the top of the sealing plug.

[0013] Furthermore, a guide rod is fixed to the top of the sealing block, and the upper end of the guide rod slides through the bracket.

[0014] Compared with existing technologies, the advantages of this utility model are: (1) This solution uses a flexible cover in conjunction with a movable bracket and a fixed ring. The operator only needs to lift or press down the lifting ring to open or close the flexible cover. This allows the circulating pump body to be protected from dust by the flexible cover when not in use, and the flexible cover can be opened easily when in use without disassembling or removing it. This makes it more convenient to use and can also completely cover multiple vents around the circulating pump body, making it more suitable for the protection needs of existing low-temperature cooling circulating pumps.

[0015] (2) This solution uses a dust collection box and a follow-up suction mechanism. When the hollow ring moves downward, it drives the follow-up tube and the movable plug plate to move downward synchronously. When the movable plug plate moves downward, it creates a negative pressure environment in the dust collection box, which forces the hollow ring to deliver air into the dust collection box through the suction hole. The dust attached to the vent is carried into the dust collection box by the airflow. Thus, while the flexible cover is deployed to block the vent, the dust adsorbed on the vent during the use of the circulating pump body is cleaned, thereby achieving the dual effects of blocking and dust removal. The actual use effect is better. Attached Figure Description

[0016] Figure 1 This is a first-view three-dimensional structural diagram of the flexible cover of this utility model when it is unfolded. Figure 2 This is a two-dimensional structural diagram of the flexible cover of this utility model when it is retracted; Figure 3 This is a schematic diagram of the movable support structure of this utility model; Figure 4 This is a side sectional view of the dust collection box and the follow-up dust collection mechanism of this utility model; Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle.

[0017] Explanation of the labels in the diagram: 1. Circulating pump body; 11. Vent; 2. Fixed ring; 3. Movable bracket; 31. Lifting ring; 32. Hollow ring; 321. Dust suction hole; 33. Connecting rod; 34. Lifting handle; 4. Flexible cover; 5. Dust collection box; 51. Box door; 6. Follow-up dust suction mechanism; 61. Movable plug plate; 62. Follow-up tube; 601. Dust suction channel; 7. Sealing plug; 71. Guide rod; 8. Bracket; 9. Compression spring. Detailed Implementation

[0018] The technical solution will now be clearly and completely described with reference to the accompanying drawings in the embodiments of this utility model.

[0019] First implementation method: Please see Figure 1 - Figure 5 A cryogenic cooling circulating pump for laser equipment includes a circulating pump body 1 (the circulating pump body 1 is a cryogenic cooling circulating pump commonly used in the prior art without additional structures, such as model DX-2025, the specific structure and working principle of which are all prior art and will not be described in detail here). Vents 11 are provided around the circulating pump body 1 (the vents 11 are divided into air inlets and air outlets. The air inlets are generally provided with dustproof nets, and the air outlets are generally provided with air outlet grid structures. The attached drawings of this application show the air inlet structure with dustproof nets). Fixing rings 2 are fixedly sleeved on the circulating pump body 1. There are two fixing rings 2, which are distributed vertically and horizontally. The two fixing rings 2 are located above and below the vents 11, respectively. A movable bracket 3 is also slidably installed on the circulating pump body 1. The movable bracket 3 includes a lifting ring 31, a hollow ring 32, and a connecting rod 33. The lifting ring 31 is C-shaped and is slidably clamped on the circulating pump body 1. The lifting ring 31 is located above the upper fixed ring 2. The hollow ring 32 is a ring body and is slidably sleeved on the circulating pump body 1. The hollow ring 32 is located between the two fixed rings 2. Multiple connecting rods 33 are provided and are located outside the four corners of the circulating pump body 1. The upper and lower ends of the multiple connecting rods 33 are fixed to the bottom of the lifting ring 31 and the top of the hollow ring 32. The lifting ring 31 and the hollow ring 32 are magnetically attracted to the two fixed rings 2. A flexible cover 4 is fixed between the top of the hollow ring 32 and the bottom of the upper fixed ring 2. The flexible cover 4 is a flexible and foldable ring cover. When the bottom of the hollow ring 32 and the top of the lower fixed ring 2 attract each other, the flexible cover 4 is fully unfolded and covers the outside of the ventilation ports 11 around the circulating pump body 1. At this time, the flexible cover 4, the two fixed rings 2, and the hollow ring 32 form a closed cover.

[0020] Based on the above structure, when the circulating pump body 1 is not in use, the operator only needs to press down the lifting ring 31, causing the lifting ring 31 to move the hollow ring 32 downwards via the connecting rod 33. This allows the flexible cover 4 to gradually unfold downwards. When the hollow ring 32 is attracted and fixed to the lower fixing ring 2, the flexible cover 4 is fully unfolded, forming a sealed cover with the hollow ring 32 and the two fixing rings 2. This effectively prevents external dust and insects from entering the circulating pump body 1 through the vent 11. When the circulating pump body 1 needs to be used again, simply move the lifting ring 31 upwards, causing the lifting ring 31 to move the hollow ring 32 upwards via the connecting rod 33. The flexible cover 4 gradually folds and contracts upwards, eventually causing the upper end of the hollow ring 32 to adhere and fix itself to the upper fixed ring 2 (the lower outer side of the upper fixed ring 2 can be provided with a downward protruding flange to facilitate the adhesion and fixation of the flexible cover 4 to the hollow ring 32 while accommodating it), thus exposing the vent 11, which facilitates the circulation pump body 1 to maintain good heat dissipation during operation. Opening or retracting the flexible cover 4 is simple and quick to operate, and there is no need to disassemble or remove the flexible cover 4. At the same time, it can completely cover the multiple vents 11 around the circulation pump body 1, which is more suitable for the protection needs of existing low-temperature cooling circulation pumps.

[0021] Furthermore, a dust collection box 5 is fixed to the back of the circulating pump body 1. The dust collection box 5 is located above the upper fixing ring 2. A door 51 that closes the opening of the side wall of the dust collection box 5 is hinged to one side of the dust collection box 5. The door 51 and the dust collection box 5 form a sealed box. The dust collection box 5 is equipped with a follow-up dust collection mechanism 6. The lower end of the follow-up dust collection mechanism 6 extends to the hollow ring 32 and is fixed and connected to the upper part of the hollow ring 32. The hollow ring 32 has multiple evenly distributed dust collection holes 321 on the inner side near the air vent 11. Specifically, the follow-up vacuuming mechanism 6 includes a movable stopper plate 61 and a follow-up tube 62. The movable stopper plate 61 is slidably connected to the dust collection box 5. The periphery of the movable stopper plate 61 slides against the inner side of the dust collection box 5. The upper end of the follow-up tube 62 is integrally formed with the movable stopper plate 61. The lower end of the follow-up tube 62 slides through the bottom of the dust collection box 5 and is fixed and connected to the hollow ring 32. A vacuuming channel 601 with an opening located above the movable stopper plate 61 is formed in the movable stopper plate 61 and the follow-up tube 62.

[0022] With the dust collection box 5 and the follow-up suction mechanism 6, when the hollow ring 32 moves downward, it drives the follow-up tube 62 and the movable stopper plate 61 to move downward synchronously. When the movable stopper plate 61 moves downward, a negative pressure environment is formed in the dust collection box 5 (located in the space between the movable stopper plate 61 and the top wall of the dust collection box 5), thereby forcing the hollow ring 32 to deliver air into the dust collection box 5 through the suction hole 321. The dust attached to the vent 11 is carried into the dust collection box 5 by the airflow. Thus, while the flexible cover 4 is deployed to cover the vent 11, the dust adsorbed by the circulating pump body 1 during use is cleaned, thereby achieving the dual effects of covering and dust removal, and the actual use effect is better. After the flexible cover 4 is unfolded, the staff can clean the dust in the dust collection box 5, which can achieve the effect of centralized dust removal.

[0023] It should be noted that a cleaning brush can also be installed inside the hollow ring 32. The hollow ring 32 drives the cleaning brush to move, thereby raising the dust attached to the vent 11. The raised dust is then sucked away through the suction hole 321 (the raised dust moves with the airflow and therefore will not move into the circulating pump body 1), which can achieve a better dust removal effect.

[0024] Furthermore, lifting handles 34 are fixed on both sides of the top of the lifting ring 31 to facilitate the movement of the lifting ring 31; the dust collection box 5 is located in the notch of the lifting ring 31 to avoid mutual interference between the two.

[0025] Second implementation method: Please see Figure 4 - Figure 5 A cryogenic cooling circulation pump for laser equipment, differing in its first embodiment in that: The upper opening of the dust suction channel 601 is plugged with a sealing plug 7. The top of the movable plug plate 61 is fixed with a bracket 8, which is a "7" shaped bracket. The bottom of the crossbar of the bracket 8 is fixed with a compression spring 9, and the lower end of the compression spring 9 is fixed to the top of the sealing plug 7. Meanwhile, a guide rod 71 is fixed at the top of the sealing plug 7, and the upper end of the guide rod 71 slides through the bracket 8; With the arrangement of the sealing plug 7, the bracket 8, and the compression spring 9, when the movable plug plate 61 moves downward to create negative pressure inside the dust collection box 5, the sealing plug 7 moves upward under the pressure, overcoming the elastic force of the compression spring 9. This allows the upper opening of the suction channel 601 to open, allowing dust and the airflow carrying the dust to enter the dust collection box 5. When the flexible cover 4 is fully extended and the internal and external air pressures finally reach equilibrium, the sealing plug 7 descends again under the elastic force of the compression spring 9 and seals the upper opening of the suction channel 601, preventing dust from flowing back to the vent 11 through the suction channel 601 and causing secondary pollution and blockage, resulting in better dust removal.

[0026] In addition, in order to balance the air pressure in the space below the movable stopper plate 61 in the dust collection box 5, a through hole can be opened at the bottom of the dust collection box 5. This will prevent the air pressure in the space below the movable stopper plate 61 from becoming unbalanced when the movable stopper plate 61 moves up and down, thus avoiding obstruction of the movement of the movable stopper plate 61. In addition, during the process of driving the movable stopper plate 61 to move upward, the staff can open the box door 51 to connect the dust collection box 5 with the external space (the dust in the dust collection box 5 needs to be cleaned in advance), so that the movable stopper plate 61 can move upward more smoothly and avoid obstructing the upward movement of the movable stopper plate 61.

[0027] The above description is merely a preferred embodiment of this utility model; it encompasses all the protection scope of this utility model. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be covered within the protection scope of this utility model.

Claims

1. A cryogenic circulating pump for a laser device, comprising a circulating pump body (1) provided with a vent (11) around the entire circumference, characterized in that: A fixing ring (2) is fixedly sleeved on the circulating pump body (1). There are two fixing rings (2) and they are distributed vertically at intervals. The two fixing rings (2) are located above and below the vent (11), respectively. The circulating pump body (1) is also slidably mounted with a movable bracket (3). The movable bracket (3) includes a lifting ring (31), a hollow ring (32), and a connecting rod (33). The lifting ring (31) is C-shaped and is slidably clamped on the circulating pump body (1). The lifting ring (31) is located above the upper fixed ring (2). The hollow ring (32) is a ring body and is slidably sleeved on the circulating pump body (1). The hollow ring (32) is located between the two fixed rings (2). Multiple connecting rods (33) are provided and are located outside the four corners of the circulating pump body (1). The upper and lower ends of the multiple connecting rods (33) are fixed to the bottom of the lifting ring (31) and the top of the hollow ring (32). The lifting ring (31) and the hollow ring (32) are magnetically attracted to the two fixed rings (2). A flexible cover (4) is fixed between the top of the hollow ring (32) and the bottom of the upper fixed ring (2). The flexible cover (4) is a flexible and foldable ring cover. When the bottom of the hollow ring (32) and the top of the lower fixed ring (2) are attracted to each other, the flexible cover (4) is fully unfolded and covers the outside of the ventilation ports (11) around the circulating pump body (1). At this time, the flexible cover (4), the two fixed rings (2), and the hollow ring (32) form a closed cover.

2. The cryogenic cooling circulation pump for laser equipment according to claim 1, characterized in that: The circulating pump body (1) has a dust collection box (5) fixed on its back. The dust collection box (5) is located above the fixing ring (2) above it. A door (51) that closes the opening of the side wall of the dust collection box (5) is hinged to one side of the dust collection box (5). The door (51) and the dust collection box (5) form a sealed box. The dust collection box (5) is equipped with a follow-up dust collection mechanism (6). The lower end of the follow-up dust collection mechanism (6) extends to the hollow ring (32) and is fixed and connected to the upper part of the hollow ring (32). The hollow ring (32) has multiple evenly distributed dust collection holes (321) on the inner side near the air vent (11).

3. A cryogenic cooling circulation pump for laser equipment according to claim 2, characterized in that: The follow-up dust collection mechanism (6) includes a movable stopper plate (61) and a follow-up tube (62). The movable stopper plate (61) is slidably connected to the dust collection box (5). The periphery of the movable stopper plate (61) slides against the inner side of the dust collection box (5). The upper end of the follow-up tube (62) is integrally formed with the movable stopper plate (61). The lower end of the follow-up tube (62) slides through the bottom of the dust collection box (5) and is fixed and connected to the hollow ring (32). A dust collection channel (601) with an opening located above the movable stopper plate (61) is formed in the movable stopper plate (61) and the follow-up tube (62).

4. A cryogenic cooling circulation pump for laser equipment according to claim 3, characterized in that: The top of the lifting ring (31) is fixed with lifting handles (34) on both sides, and the dust collection box (5) is located in the notch of the lifting ring (31).

5. A cryogenic cooling circulation pump for laser equipment according to claim 3, characterized in that: The upper opening of the dust suction channel (601) is filled with a sealing plug (7), and the top of the movable plug plate (61) is fixed with a bracket (8). The bracket (8) is a "7" shaped bracket, and the bottom of the crossbar of the bracket (8) is fixed with a compression spring (9). The lower end of the compression spring (9) is fixed to the top of the sealing plug (7).

6. A cryogenic cooling circulation pump for laser equipment according to claim 5, characterized in that: The top of the sealing plug (7) is fixed with a guide rod (71), and the upper end of the guide rod (71) slides through the bracket (8).

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