Water-ring vacuum pump

Abstract

The utility model discloses a water ring type vacuum pump which comprises a vacuum pump body, a liquid storage assembly and a locking assembly. The liquid storage assembly comprises a movable sleeve movably installed at the front end of the vacuum pump body and a liquid storage cover fixedly installed on the movable sleeve. According to the water ring type vacuum pump, when the vacuum pump body is not used, the movable sleeve between the vacuum pump body and the front cover can be rotated, so that the liquid storage cover at the upper end of the movable sleeve is rotated to the bottom, and liquid in the movable sleeve is stored at the bottom; the liquid storage cover is arranged in the vacuum pump body, so that the problem that the impeller is corroded due to the fact that the liquid is in contact with the impeller in the vacuum pump body for a long time is avoided, and the liquid storage cover has the advantage of being convenient to operate when the liquid in the vacuum pump body is not used and the liquid is not wasted; the movable sleeve can be locked and fixed through the upper locking screw and the lower locking screw at the rear end, and then the stability of the movable sleeve in the working process of the vacuum pump body is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of water ring vacuum pumps, in particular to a water ring vacuum pump. Background Art

[0002] A water ring vacuum pump is a rotary variable volume vacuum pump that uses water as a working medium to form a variable volume. The water ring vacuum pump is equipped with an eccentric rotor with fixed blades. When the rotor rotates, water is thrown to the stator wall to form a liquid ring concentric with the stator. The liquid ring and the rotor blades together form a variable volume pump chamber. As the rotor rotates, the volume of the pump chamber changes continuously, thereby realizing the process of suction, compression and exhaust.

[0003] The existing water ring vacuum pump generally discharges the internal liquid after use to avoid corrosion of the vacuum pump impeller by the internal liquid. The liquid discharge operation is inconvenient and also easily causes waste of liquid. Therefore, we propose a water ring vacuum pump. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0005] To this end, the technical solution adopted in this utility model is:

[0006] A water ring vacuum pump comprises: a vacuum pump body, a liquid storage component, and a locking component; the liquid storage component comprises a movable sleeve movably mounted at the front end of the vacuum pump body, a liquid storage cover fixedly mounted on the movable sleeve, a front cover movably mounted at the front end of the movable sleeve, a first bayonet provided at the front end of the vacuum pump body, a second bayonet provided at the rear end of the front cover, a clamping ring provided at both the front and rear ends of the movable sleeve, and sealing rings movably mounted in both the first bayonet and the second bayonet; the locking component comprises a jack provided at the rear end of the liquid storage cover.

[0007] Preferably, the first bayonet and the second bayonet have the same structure, and the snap rings are matched with the first bayonet and the second bayonet.

[0008] Preferably, a cover plate is fixedly mounted on the upper portion of the rear end of the front cover.

[0009] Preferably, the front end of the vacuum pump body and the rear end of the front cover are arranged with corresponding fixed ears, the fixing ears are penetrated by mounting holes, and the mounting holes are movably installed with fixing screws.

[0010] Preferably, threaded holes are provided in the fixing ears on the upper and lower sides of the vacuum pump body and the front cover, and upper locking screws and lower locking screws are movably installed in the upper and lower threaded holes respectively.

[0011] Preferably, the upper locking screw and the lower locking screw both match the jack.

[0012] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0013] 1. In the utility model, when the vacuum pump body is not in use, the movable sleeve between the vacuum pump body and the front cover can be rotated so that the liquid storage cover at the upper end thereof is rotated to the bottom, thereby storing the liquid in the movable sleeve at the bottom, thereby avoiding the problem of corrosion of the impeller caused by the liquid contacting the impeller in the vacuum pump body for a long time, and storing the liquid in the vacuum pump body when not in use, without wasting the liquid, and also having the advantage of convenient operation;

[0014] 2. In the utility model, when the liquid storage cover in the movable sleeve is at the upper part and the lower part, it can be locked and fixed by the upper locking screw and the lower locking screw at the rear end respectively, thereby ensuring the stability of the movable sleeve during the operation of the vacuum pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall structure diagram of the utility model;

[0016] Figure 2 Another perspective view of the present utility model;

[0017] Figure 3 It is an exploded view of the utility model;

[0018] Figure 4 Another perspective of the exploded view of the utility model;

[0019] Figure 5 It is a side sectional view of the utility model;

[0020] Figure 6 For this utility model Figure 2 A is an enlarged view of the middle image.

[0021] Reference numerals:

[0022] 100. Vacuum pump body;

[0023] 200, liquid storage assembly; 201, movable sleeve; 202, liquid storage cover; 203, front cover; 204, first bayonet; 205, second bayonet; 206, snap ring; 207, sealing ring; 208, cover plate; 209, fixing ear; 210, mounting hole; 211, fixing screw;

[0024] 300, locking assembly; 301, jack; 302, threaded hole; 303, upper locking screw; 304, lower locking screw. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0026] A water ring vacuum pump provided by some embodiments of the utility model is described below in conjunction with the accompanying drawings. Embodiment 1

[0027] Combination Figure 1-5 As shown, the utility model provides a water ring vacuum pump, comprising: a vacuum pump body 100, a liquid storage assembly 200, and a locking assembly 300; the liquid storage assembly 200 comprises a movable sleeve 201 movably mounted at the front end of the vacuum pump body 100, a liquid storage cover 202 fixedly mounted on the movable sleeve 201, a front cover 203 movably mounted at the front end of the movable sleeve 201, a first bayonet 204 arranged at the front end of the vacuum pump body 100, a second bayonet 205 arranged at the rear end of the front cover 203, and a clamping ring 204 arranged at both the front and rear ends of the movable sleeve 201. 6. A sealing ring 207 is movably installed in the first bayonet 204 and the second bayonet 205; the first bayonet 204 and the second bayonet 205 have the same structure, and the retaining ring 206 matches the first bayonet 204 and the second bayonet 205. A cover plate 208 is also fixedly installed on the upper part of the rear end of the front cover 203. Fixed ears 209 are arranged and fixedly installed at the front end of the vacuum pump body 100 and the rear end of the front cover 203. Mounting holes 210 are opened through the fixing ears 209, and fixing screws 211 are movably installed in the mounting holes 210.

[0028] Specifically, a water ring vacuum pump is a rotary variable volume vacuum pump that uses water as a working medium to form a variable volume. When the vacuum pump body 100 is not in use, the movable sleeve 201 between the vacuum pump body 100 and the front cover 203 can be rotated so that the liquid storage cover 202 at its upper end rotates to the bottom, thereby storing the liquid in the movable sleeve 201 at the bottom, thereby avoiding the problem of corrosion of the impeller caused by the liquid contacting the impeller in the vacuum pump body 100 for a long time, and the storage of the liquid in the vacuum pump body 100 when not in use does not waste the liquid and also has the advantage of convenient operation. At the same time, the clamping rings 206 on both sides of the movable sleeve 201 are arranged at the front end of the vacuum pump body 100 and the rear end of the front cover 203 The engaged first bayonet 204 and the second bayonet 205, and the sealing ring 207 installed in the first bayonet 204 and the second bayonet 205, are mainly used to ensure the sealing of the movable sleeve 201 after it is installed between the vacuum pump body 100 and the front cover 203 to avoid leakage. The cover plate 208 fixedly installed on the upper rear end of the front cover 203 is mainly used to seal the bottom when the liquid storage cover 202 is at the upper part to avoid affecting the normal use of the vacuum pump body 100. The fixing ears 209 set at the front end of the vacuum pump body 100 and the rear end of the front cover 203, and the fixing screws 211 installed between the fixing ears 209, are mainly used for the movable installation and adjustment of the movable sleeve 201 between the vacuum pump body 100 and the front cover 203. Embodiment 2

[0029] Combination Figure 3-6 As shown, on the basis of the first embodiment, the locking assembly 300 includes a socket 301 opened at the rear end of the liquid storage cover 202, and threaded holes 302 are opened in the fixing ears 209 on the upper and lower sides of the vacuum pump body 100 and the front cover 203, and upper locking screws 303 and lower locking screws 304 are movably installed in the upper and lower threaded holes 302, respectively, and the upper locking screws 303 and the lower locking screws 304 are matched with the socket 301.

[0030] Specifically, when the liquid storage cover 202 in the movable sleeve 201 is at the upper part and the lower part, it can be locked and fixed by the upper locking screw 303 and the lower locking screw 304 at the rear end respectively, thereby ensuring the stability of the movable sleeve 201 during the operation of the vacuum pump body 100 and avoiding the problem of rotation.

[0031] The working principle and use process of this utility model:

[0032] When the vacuum pump body 100 is not in use, the upper locking screw 303 on the upper part of the vacuum pump body 100 can be screwed outwardly first to make the upper locking screw 303 disengage from the insertion hole 301 at the rear end of the liquid storage cover 202. After the upper locking screw 303 is disengaged from the insertion hole 301, the movable sleeve 201 is rotated as a whole to rotate the liquid storage cover 202 at the upper end of the movable sleeve 201 to the bottom. After the liquid storage cover 202 is rotated to the bottom, the liquid in the movable sleeve 201 will flow into the liquid storage cover 202 and be located on the bottom surface of the movable sleeve 201, thereby preventing the impeller in the vacuum pump body 100 from being immersed in the liquid for a long time and causing corrosion and other problems. After the adjustment of the liquid storage cover 202 is completed, the lower locking screw 304 at the lower part of the vacuum pump body 100 can be screwed inwardly to lock the adjusted liquid storage cover 202 and the movable sleeve 201.

[0033] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A water ring vacuum pump, characterized in that: include: A vacuum pump body (100), a liquid storage assembly (200), and a locking assembly (300); The liquid storage assembly (200) comprises a movable sleeve (201) movably mounted at the front end of the vacuum pump body (100), a liquid storage cover (202) fixedly mounted on the movable sleeve (201), a front cover (203) movably mounted at the front end of the movable sleeve (201), a first bayonet (204) provided at the front end of the vacuum pump body (100), a second bayonet (205) provided at the rear end of the front cover (203), a clamping ring (206) provided at both the front and rear ends of the movable sleeve (201), and a sealing ring (207) movably mounted in both the first bayonet (204) and the second bayonet (205); The locking assembly (300) comprises a plug hole (301) opened at the rear end of the liquid storage cover (202).

2. A water ring vacuum pump according to claim 1, characterized in that: The first bayonet (204) and the second bayonet (205) have the same structure, and the clamping ring (206) matches the first bayonet (204) and the second bayonet (205).

3. A water ring vacuum pump according to claim 1, characterized in that: A cover plate (208) is also fixedly mounted on the upper portion of the rear end of the front cover (203).

4. A water ring vacuum pump according to claim 1, characterized in that: The front end of the vacuum pump body (100) and the rear end of the front cover (203) are both arranged and fixedly installed with fixing ears (209), and the fixing ears (209) are each penetrated by a mounting hole (210), and the mounting holes (210) are each movably installed with a fixing screw (211).

5. A water ring vacuum pump according to claim 4, characterized in that: The fixing ears (209) on the upper and lower sides of the vacuum pump body (100) and the front cover (203) are provided with threaded holes (302), and upper locking screws (303) and lower locking screws (304) are movably installed in the upper and lower threaded holes (302), respectively.

6. A water ring vacuum pump according to claim 5, characterized in that: The upper locking screw (303) and the lower locking screw (304) are both matched with the insertion hole (301).

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