An improved water ring vacuum pump

Abstract

The present invention discloses an improved water ring vacuum pump, comprising a pump body, wherein the annular outer surface of the pump body is provided with a protective shell, the annular outer surface of the pump body is fixedly connected with a heat sink, the middle part of the annular outer surface of the pump body is provided with an annular groove, the inner surface of the annular groove is movably connected with a ring block, the annular outer surface of the ring block is fixedly connected with a blade, the annular inner surface of the ring block is provided with a rolling groove, the inner surface of the rolling groove is movably connected with a ball, the annular inner surface of the ring block is fixedly connected with a magnet 1, the pump body is movably connected with an impeller, one end of the impeller close to the annular inner surface of the pump body is fixedly connected with a magnet 2, the front end outer surface and the rear end outer surface of the pump body are both provided with filter plates, by providing the magnet 1 and the magnet 2, the impeller rotates while driving the blades to rotate to form air convection to reduce the temperature of the pump body, and the external dust can be blocked on the surface of the filter plate by the filter plate.

Description

Technical Field

[0001] The invention relates to the technical field of water ring pumps, in particular to an improved water ring vacuum pump. Background Art

[0002] The water ring vacuum pump is a rough vacuum pump, which was originally used as a self-priming water pump, and then gradually used in many industrial sectors such as chemical industry, machinery, light industry, medicine, etc. The water ring vacuum pump relies on the change of the pump chamber volume to achieve suction, compression and exhaust, and is a variable volume vacuum pump.

[0003] In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art that have not been solved: when the water ring vacuum pump is working, at a relative temperature, when the liquid pressure at the low pressure is lower than the vaporization pressure at the temperature, the liquid is initially vaporized to generate bubbles, and when the liquid enters the high pressure area, the bubbles split, and the surrounding liquid fills the original bubble space, resulting in hydraulic shock, which will cause certain damage to the impeller of the water ring pump. Therefore, it is particularly important to reduce the working temperature of the water ring pump.

[0004] Therefore, an improved water ring vacuum pump is proposed. Summary of the invention

[0005] The object of the present invention is to provide an improved water ring vacuum pump to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an improved water ring vacuum pump, comprising a pump body, a protective shell is provided on the annular outer surface of the pump body, a heat sink is fixedly connected to the annular outer surface of the pump body, an annular groove is provided in the middle part of the annular outer surface of the pump body, a ring block is movably connected to the inner surface of the annular groove, a blade is fixedly connected to the annular outer surface of the ring block, a rolling groove is provided on the annular inner surface of the ring block, a ball is movably connected inside the rolling groove, a magnet 1 is fixedly connected to the annular inner surface of the ring block, an impeller is movably connected inside the pump body, and a magnet 2 is fixedly connected to one end of the impeller close to the annular inner surface of the pump body.

[0007] Preferably, the magnet one is a bar magnet, and the magnet one is in a plurality of groups and is evenly distributed on the annular inner surface of the ring block.

[0008] Preferably, a fixing rod is fixedly connected to the annular inner surface of the protective shell, the protective shell is fixedly connected to the pump body via the fixing rod, and a heat dissipation cavity is provided between the protective shell and the pump body.

[0009] Preferably, the heat sinks are in several groups and are evenly distributed on the annular outer surface of the pump body, and the pump body is made of stainless steel.

[0010] Preferably, the annular groove and the annular block correspond to each other, lubricating oil is coated between the balls and the rolling groove, and the annular block and the annular groove are movably connected through the balls and the rolling groove.

[0011] Preferably, magnet one and magnet two attract each other, filter plates are provided on the front end outer surface and the rear end outer surface of the pump body, the annular inner surface of the protective shell is provided with threads, the rear end outer surface of the filter plate is provided with threads, the filter plate is threadedly connected to the protective shell, there are two groups of filter plates, and they are both threadedly connected to the pump body.

[0012] Preferably, the heat sink has a preset acute angle with the ring block in the length direction;

[0013] Brush rods are provided on both sides of the ring block. The length direction of the brush rods is parallel to the axial direction of the ring block. First bristles and second bristles are provided on opposite sides of the brush rod. The first bristles are used to clean the heat sink, and the second bristles are used to clean the inner wall of the protective shell.

[0014] Preferably, the brush rod is rotatably mounted on the ring block, and the brush rod has a first position and a second position during rotation on the ring block, wherein:

[0015] When the brush rod is in the first position, the brush rod contacts the heat sink during the movement of the ring block;

[0016] When the brush rod is in the second position, the brush rod does not contact the heat sink when moving with the ring block.

[0017] Preferably, the heat sink is in a comb-teeth shape, the first bristles are in a comb-teeth shape, and when the brush rod is in the first position, the heat sink can be matched with the first bristles.

[0018] Preferably, the heat sink comprises an integrally formed heat dissipation portion, a connection portion and a limiting portion, a matching groove is provided on the surface of the cylinder, and the matching groove comprises a first groove section and a second groove section from the outside to the inside;

[0019] The heat dissipation part is comb-shaped;

[0020] The connecting portion is rotatably engaged in the first groove section;

[0021] The opposite side walls of the second slot section are respectively provided with springs, the limiting portion is located in the second slot section, and the two sides of the limiting portion are respectively against the springs.

[0022] Beneficial effects:

[0023] 1. An annular groove is provided in the middle part of the annular outer surface of the pump body, a rolling groove is provided on the inner surface of the annular groove, a ball is movably connected inside the rolling groove, the annular inner and outer surfaces of the ring block are fixedly connected to magnet 1, the pump body is movably connected to an impeller, and one end of the impeller close to the annular inner surface of the pump body is fixedly connected to magnet 2. When the impeller rotates, magnet 1 and magnet 2 are magnetically attracted, magnet 2 drives magnet 1 to move along the annular groove, and the annular groove drives the blades fixedly connected to the annular outer surface to move, so that the gas between the protective shell and the pump body circulates inside the heat dissipation cavity, and the annular outer surface of the pump body is fixedly connected to a heat sink. The air circulating inside the heat dissipation cavity will take away the heat from the surface of the heat sink, cool the pump body, and through this structure, the blades follow the rotation of the impeller to generate wind force, thereby reducing the heat of the pump body.

[0024] 2. A filter plate is arranged on the front outer surface of the protective shell, and a thread is arranged on one end of the filter plate close to the protective shell. The annular inner surface of the protective shell and the corresponding position of the filter plate are provided with threads, and the two are provided with a threaded connection, so that when disassembling, it can be removed by rotating along the thread. Through this structure, external dust can be blocked on the surface of the filter plate to reduce the interference of dust on the heat sink. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is the overall structural view of the present invention;

[0027] Figure 2 This is a combined view of the pump body and the protective shell of the present invention;

[0028] Figure 3 A combined view of the heat sink and the pump body of the present invention;

[0029] Figure 4 A combined view of the blade and the annular groove of the present invention;

[0030] Figure 5 For the present invention Figure 2 Enlarged view at A in the middle;

[0031] Figure 6 This is a combined view of the filter plate and the protective shell of the present invention;

[0032] Figure 7 A combined view of the heat sink and the brush rod of the present invention;

[0033] Figure 8 A first side view of the heat sink and brush rod of the present invention;

[0034] Fig. 9 A second side view of the heat sink and the brush rod of the present invention;

[0035] Fig.10 It is a front view of the heat sink and the brush rod of the present invention.

[0036] Description of reference numerals:

[0037] 1. Pump body; 11. Ring groove; 12. Ring block; 13. Rolling groove; 14. Ball; 15. Magnet 1; 16. Heat sink; 17. Blade; 2. Protective shell; 21. Heat dissipation chamber; 3. Filter plate; 4. Impeller; 41. Magnet 2; 51. Brush rod; 52. First bristle; 53. Second bristle; 61. Heat dissipation part; 62. Connecting part; 63. Limiting part; 71. First slot section; 72. Second slot section. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figures 1 to 6 , the present invention provides a technical solution:

[0040] like Figures 1 to 6As shown, an improved water ring vacuum pump comprises a pump body 1, the annular outer surface of the pump body 1 is provided with a protective shell 2, the annular outer surface of the pump body 1 is fixedly connected with a heat sink 16, the middle part of the annular outer surface of the pump body 1 is provided with an annular groove 11, the inner surface of the annular groove 11 is movably connected with a ring block 12, the annular outer surface of the ring block 12 is fixedly connected with a blade 17, the annular inner surface of the ring block 12 is provided with a rolling groove 13, the rolling groove 13 is movably connected with a ball 14, the annular inner surface of the ring block 12 is fixedly connected with a magnet 15, the pump body 1 is movably connected with an impeller 4, the One end of the impeller 4 close to the annular inner surface of the pump body 1 is fixedly connected with a magnet 2 41, and the front end outer surface and the rear end outer surface of the pump body 1 are both provided with filter plates 3. The impeller 4 rotates under the drive of an external device, and the magnet 2 41 has an adsorption force on the magnet 15. When the impeller 4 rotates, the ring block 12 is driven to make a circular motion along the annular groove 11. The circular motion of the ring block 12 drives the blades 17 to rotate and inhale the external air through the heat dissipation cavity 21 to blow and dissipate the heat sink 16. The dust in the air is blocked by the filter plate 3 to reduce the dust from falling on the heat sink 16. When too much dust accumulates, the filter plate 3 is rotated to remove it for cleaning.

[0041] Specifically, Figure 4 As shown, the magnet 15 is a bar magnet, and the magnet 15 is composed of several groups and is evenly distributed on the annular inner surface of the ring block 12. The multiple groups of magnets 15 and the magnet 2 41 fixedly connected to the impeller 4 generate magnetic attraction.

[0042] Specifically, Figure 2 As shown, the annular inner surface of the protective shell 2 is fixedly connected with a fixing rod, and the protective shell 2 and the pump body 1 are fixedly connected by the fixing rod. A heat dissipation cavity 21 is arranged between the protective shell 2 and the pump body 1, and the front end and the rear end of the heat dissipation cavity 21 are both in an open state. The heat dissipation cavity 21 is formed between the protective shell 2 and the pump body 1 to facilitate air convection and improve the heat dissipation effect.

[0043] Specifically, Figure 2 and Figure 3 As shown, the heat sinks 16 are in several groups and are evenly distributed on the annular outer surface of the pump body 1 . The pump body 1 is made of stainless steel. Several groups of heat sinks 16 take away the heat generated by the pump body 1 , which is beneficial to reducing the temperature of the pump body 1 .

[0044] Specifically, Figure 4 As shown, the annular groove 11 and the annular block 12 correspond to each other, lubricating oil is applied between the balls 14 and the rolling groove 13, and the annular block 12 and the annular groove 11 are movably connected through the balls 14 and the rolling groove 13. The balls 14 and the rolling groove 13 can reduce the friction between the annular block 12 and the annular groove 11, which is beneficial to the rotation of the annular block 12, thereby improving the heat dissipation efficiency.

[0045] Specifically, Figure 5 and Figure 6 As shown, the magnet 15 and the magnet 2 41 attract each other, the annular inner surface of the protective shell 2 is provided with a thread, the rear end outer surface of the filter plate 3 is provided with a thread, the filter plate 3 is threadedly connected to the protective shell 2 through a thread, the filter plates 3 are in two groups, and they are both threadedly connected to the pump body 1, the filter plates 3 are threadedly connected to the protective shell 2 through a thread, and the filter plates 3 are designed as an annular structure.

[0046] Working principle: An annular groove 11 is provided in the middle of the annular outer surface of the pump body 1, and a rolling groove 13 is provided on the inner surface of the annular groove 11. A ball 14 is movably connected inside the rolling groove 13. The inner and outer surfaces of the annular ring block 12 are fixedly connected to a magnet 15. The pump body 1 is movably connected to an impeller 4. One end of the impeller 4 close to the annular inner surface of the pump body 1 is fixedly connected to a magnet 2 41. When the impeller 4 rotates, the magnet 15 is magnetically attracted to the magnet 2 41. The magnet 2 41 drives the magnet 15 to move along the annular groove 11. The annular groove 11 drives the blade 17 fixedly connected to the annular outer surface to move, so that the gas between the protective shell 2 and the pump body 1 flows inside the heat dissipation cavity 21, and the pump body 1 The annular outer surface is fixedly connected with the heat sink 16, and the air circulating in the heat dissipation cavity 21 will take away the heat from the surface of the heat sink 16 to cool the pump body 1. Through this structure, the blades 17 follow the rotation of the impeller 4 to generate wind force, thereby reducing the heat of the pump body 1. A filter plate 3 is arranged on the front outer surface of the protective shell 2, and a thread is arranged at one end of the filter plate 3 close to the protective shell 2. The annular inner surface of the protective shell 2 and the filter plate 3 are provided with threads at corresponding positions. The two are connected by threads, so that when disassembling, it can be removed by rotating along the threads. Through this structure, external dust can be blocked on the surface of the filter plate 3 to reduce the interference of dust on the heat sink 16.

[0047] Instructions for use: The impeller 4 rotates under the drive of an external device, and the rotating impeller 4 magnetically attracts the magnet 15 through the magnet 2 41, driving the ring block 12 fixedly connected to the magnet 15 to rotate along the ring groove 11. The rotating ring block 12 sucks air from the front end of the heat dissipation cavity 21 through the blades 17, and then discharges it from the rear end, so that air forms air convection inside the heat dissipation cavity 21, blowing and cooling the heat sink 16. When it is necessary to clean the dust on the surface of the filter plate 3, the filter plate 3 is rotated along the thread direction to remove the annular filter plate 3.

[0048] Since there is a filter plate, the filter plate will cause a certain obstruction to the air flow and affect the heat dissipation effect. For this reason, in another design, no filter plate is set, and a cleaning mechanism is added to clean the dust between the pump body and the protection. Figure 7, the length direction of the heat sink is set at a preset acute angle with the ring block, and the acute angle in this embodiment is 60°. The same brush rods 51 are respectively provided on both sides of the ring block, and the length direction of the brush rods 51 is arranged parallel to the axial direction of the ring block. The first bristles 52 and the second bristles 53 are respectively provided on the opposite sides of the brush rod 51. The first bristles 52 are used to clean the heat sink, and the second bristles 53 are used to clean the inner wall of the protective shell. The brush rod 51 rotates synchronously with the ring block, and the heat sink and the inner wall of the protective shell are cleaned during the rotation of the brush rod 51.

[0049] If the first bristles 52 and the second bristles 53 rub against the heat sink and the inner wall of the protective shell for a long time, the friction will generate heat, which is not conducive to the heat dissipation of the heat sink. Therefore, it is possible to set up a regular cleaning of the heat sink and the protective shell. Figure 8 and Fig. 9 The brush rod 51 is rotatably mounted on the ring block. In this embodiment, the maximum rotation angle of the brush rod 51 is 90°. The brush rod 51 has a first position and a second position during the rotation on the ring block, wherein: when the brush rod 51 is in the first position, the brush rod 51 contacts the heat sink during the movement of the ring block, that is, Fig. 9 The first bristle 52 is kept parallel to the heat sink; the brush rod 51 is in the second position, and the brush rod 51 does not contact the heat sink during the movement of the ring block, that is, Fig.10 The first brush 52 is kept vertical to the heat sink. When the vacuum pump is working normally, the brush rod 51 is in the second position. During the rotation of the brush rod 51 with the ring block, the heat sink and the inner wall of the protective shell are not cleaned. After the vacuum pump has finished working for a period of time, the brush rod 51 is manually rotated to make the brush rod 51 reach the first position, and the vacuum pump is allowed to idle at a low speed for a period of time. The first brush 52 and the second brush 53 rotate synchronously with the ring block to clean the heat sink and the inner wall of the protective shell. The cleaned dust is taken away by the flowing air. After the cleaning is completed, the brush rod 51 is manually rotated to restore the brush rod 51 to the second position.

[0050] In order to reduce the resistance of the first bristle 52 when moving, refer to Fig.10 The heat sink is in a comb-tooth shape, the first bristles 52 are in a comb-tooth shape, and when the brush rod 51 is in the first position, the heat sink can match the first bristles 52, and the resistance when the first bristles 52 move is not too large.

[0051] To further improve the cleaning effect, refer to Figure 7 and Figure 8The heat sink includes an integrally formed heat dissipation portion 61, a connection portion 62 and a limit portion 63. A matching groove is provided on the surface of the cylinder. The matching groove includes a first groove section 71 and a second groove section 72 from outside to inside. The heat dissipation portion 61 is in the shape of comb teeth. The connection portion 62 is rotatably matched with the first groove section 71. The opposite side walls of the second groove section 72 are respectively provided with springs. The limit portion 63 is located in the second groove section 72, and the two sides of the limit portion 63 are respectively against the springs. When the first bristle 52 contacts the heat dissipation portion 61, it will drive the heat dissipation portion 61 to rotate a certain angle. When the first bristle 52 is separated from the heat dissipation portion 61, the heat dissipation portion 61 returns to its original position under the action of the spring elastic force. During the recovery process, the heat dissipation portion 61 shakes, thereby shaking off the dust on the heat dissipation portion 61 and taking it away by the flowing air, thereby improving the dust cleaning effect.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An improved water ring vacuum pump, comprising a pump body (1), characterized in that: The annular outer surface of the pump body (1) is provided with a protective shell (2), the annular outer surface of the pump body (1) is fixedly connected to a heat sink (16), the middle part of the annular outer surface of the pump body (1) is provided with an annular groove (11), the inner surface of the annular groove (11) is movably connected to a ring block (12), the annular outer surface of the ring block (12) is fixedly connected to a blade (17), the annular inner surface of the ring block (12) is provided with a rolling groove (13), the inside of the rolling groove (13) is movably connected to a ball (14), the annular inner surface of the ring block (12) is fixedly connected to a magnet 1 (15), the pump body (1) is movably connected to an impeller (4), and one end of the impeller (4) close to the annular inner surface of the pump body (1) is fixedly connected to a magnet 2 (41).

2. An improved water ring vacuum pump according to claim 1, characterized in that: The magnet one (15) is a bar magnet, and the magnet one (15) is a plurality of groups and is evenly distributed on the annular inner surface of the ring block (12).

3. An improved water ring vacuum pump according to claim 1, characterized in that: A fixing rod is fixedly connected to the annular inner surface of the protective shell (2); the protective shell (2) and the pump body (1) are fixedly connected via the fixing rod; and a heat dissipation cavity (21) is provided between the protective shell (2) and the pump body (1).

4. An improved water ring vacuum pump according to claim 1, characterized in that: The heat sinks (16) are in a plurality of groups and are evenly distributed on the annular outer surface of the pump body (1); the pump body (1) is made of stainless steel.

5. An improved water ring vacuum pump according to claim 1, characterized in that: The annular groove (11) and the annular block (12) are matched with each other, lubricating oil is applied between the balls (14) and the rolling groove (13), and the annular block (12) and the annular groove (11) are movably connected via the balls (14) and the rolling groove (13).

6. An improved water ring vacuum pump according to claim 1, characterized in that: The magnet one (15) and the magnet two (41) attract each other, the front end outer surface and the rear end outer surface of the pump body (1) are both provided with filter plates (3), the annular inner surface of the protective shell (2) is provided with threads, the rear end outer surface of the filter plate (3) is provided with threads, the filter plate (3) and the protective shell (2) are threadedly connected, the filter plates (3) are in two groups, and both are threadedly connected to the pump body (1).

7. An improved water ring vacuum pump according to claim 1, characterized in that: The length direction of the heat sink is at a preset acute angle with the ring block; Brush rods (51) are respectively provided on both sides of the ring block. The length direction of the brush rods (51) is arranged parallel to the axial direction of the ring block. First brush bristles (52) and second brush bristles (53) are respectively provided on opposite sides of the brush rod (51). The first brush bristles (52) are used to clean the heat sink, and the second brush bristles (53) are used to clean the inner wall of the protective shell.

8. An improved water ring vacuum pump according to claim 7, characterized in that: The brush rod (51) is rotatably mounted on the ring block. The brush rod (51) has a first position and a second position during rotation on the ring block, wherein: When the brush rod (51) is in the first position, the brush rod (51) contacts the heat sink during the movement of the ring block; When the brush rod (51) is in the second position, the brush rod (51) does not contact the heat sink during the movement of the ring block.

9. An improved water ring vacuum pump according to claim 8, characterized in that: The heat sink is in the shape of comb teeth, the first bristles (52) are in the shape of comb teeth, and when the brush rod (51) is in the first position, the heat sink and the first bristles (52) are aligned.

10. An improved water ring vacuum pump according to claim 9, characterized in that: The heat sink comprises an integrally formed heat dissipation portion (61), a connection portion (62) and a limiting portion (63); a matching groove is provided on the surface of the cylinder, and the matching groove comprises a first groove section (71) and a second groove section (72) from the outside to the inside; The heat dissipation portion (61) is in a comb-teeth shape; The connecting portion (62) is rotatably engaged with the first groove section (71); The opposite side walls of the second slot section (72) are respectively provided with springs, the limiting portion (63) is located in the second slot section (72), and the two sides of the limiting portion (63) are respectively in contact with the springs.

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