Vacuum pump capable of automatically draining water

Abstract

The utility model belongs to the technical field of vacuum pumps, and particularly relates to an automatic drainage vacuum pump which comprises a shell and a pump body, the pump body is installed in the shell and comprises a motor, a compression assembly, a valve plate and a bottom cover, the motor is in transmission connection with the compression assembly, the compression assembly is used for pumping out gas, and the valve plate covers the bottom end of the compression assembly. At least one through hole is formed in the surface of the valve plate, the bottom cover is installed at the bottom end of the valve plate, a cavity is defined between the valve plate and the bottom cover, the cavity is communicated with the compression assembly through the through hole, and the cavity is communicated with a filtering piece and a guide pipe. According to the utility model, the pump body is inverted, and liquid can flow out of the pump cavity through the through hole, so that the vacuum pump can be used in equipment containing a small amount of liquid.

Description

Technical Field

[0001] The utility model belongs to the technical field of vacuum pumps, and in particular relates to an automatic drainage vacuum pump. Background Art

[0002] A vacuum pump is a device or equipment that creates a vacuum by evacuating a container using mechanical, physical, chemical, or physicochemical methods. Generally speaking, a vacuum pump is a device that uses various methods to improve, create, and maintain a vacuum in a closed space. It is widely used in industries such as metallurgy, chemicals, food, and electronic coatings.

[0003] When an existing vacuum pump is operated in a device containing liquid, some liquid may enter the pump chamber, affecting the normal operation of the vacuum pump or even damaging the vacuum pump, making it difficult for the existing vacuum pump to operate in the device containing liquid.

[0004] Therefore, it is urgent to propose a new technical solution to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an automatic drainage vacuum pump to address the deficiencies of the prior art, which can make liquid flow out of the pump chamber through the through hole, so that the vacuum pump can be used in equipment containing a small amount of liquid.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A vacuum pump with automatic drainage includes a housing and a pump body, the pump body being installed in the housing, the pump body including a motor, a compression assembly, a valve plate and a bottom cover, the motor and the compression assembly being transmission-connected, the compression assembly being used to pump out gas, the valve plate cover being arranged at the bottom end of the compression assembly, the surface of the valve plate having at least one through hole, the bottom cover being installed at the bottom end of the valve plate, a cavity being enclosed between the valve plate and the bottom cover, the cavity being connected to the compression assembly through the through hole, and the cavity being respectively connected to a filter element and a conduit.

[0008] Preferably, a vacuum gauge is provided on the side of the shell, the pump body and the filter element are connected through a connecting pipe, and the vacuum gauge is connected to the connecting pipe.

[0009] Preferably, at least one shock-proof member is provided between the housing and the pump body, and the shock-proof member is connected to the housing and the pump body respectively.

[0010] Preferably, a cooling component is provided on the top of the shell, and the cooling component is used to reduce the temperature inside the shell.

[0011] Preferably, at least one foot pad is provided on the bottom of the shell.

[0012] Preferably, the filter element is mounted on the housing, and the air inlet of the filter element is provided with a first quick plug, and the first quick plug is connected to the filter element.

[0013] Preferably, a second quick plug is installed on the housing, and the second quick plug is connected to the conduit.

[0014] Preferably, the connecting pipe includes a first pipeline and a second pipeline, the vacuum gauge is connected to the first pipeline and the second pipeline respectively through a third pipeline, and the first pipeline, the second pipeline and the third pipeline are connected through a tee pipe.

[0015] Preferably, the cavity is connected to a third quick plug and a fourth quick plug respectively, the third quick plug is connected to the second pipeline, and the fourth quick plug is connected to the catheter.

[0016] Preferably, the compression assembly includes a casing, a first bearing, an eccentric wheel, a connecting rod and a cylinder liner, the first bearing, the eccentric wheel, the connecting rod and the cylinder liner are all arranged in the casing, the eccentric wheel and the rotating shaft of the motor are transmission connected, one end of the connecting rod is sleeved on the side of the eccentric wheel, the first bearing is arranged between the connecting rod and the eccentric wheel, and the other end of the connecting rod extends into the cylinder liner.

[0017] Preferably, the motor includes a stator and a rotor, and the stator is sleeved on the outside of the rotor.

[0018] Preferably, a second bearing and a fan blade are installed on the rotating shaft, the connecting rod is arranged between the second bearing and the fan blade, and a fan cover corresponding to the fan blade is installed on the side of the casing; the motor is electrically connected to a capacitor; a disc is provided at one end of the connecting rod, a sealing ring is provided between the disc and the connecting rod, and the outer edge of the sealing ring is arranged around the edge of the disc.

[0019] Preferably, a first sealing member is provided between the compression assembly and the valve plate, and a second sealing member is provided between the valve plate and the bottom cover.

[0020] Preferably, a handle is provided on the top of the shell.

[0021] The beneficial effects of the present invention are as follows: the present invention is an automatic drainage vacuum pump, comprising a housing and a pump body, the pump body being installed in the housing, the pump body comprising a motor, a compression assembly, a valve plate and a bottom cover, the motor and the compression assembly being transmission-connected, the compression assembly being used to pump out gas, the interior of the compression assembly being provided with a pump chamber, the volume of the pump chamber being changed by the compression movement of the compression assembly, thereby being able to suck in and then pump out gas, the valve plate being used to separate the pump chamber and the bottom cover, which can reduce the probability of liquid entering the pump chamber, the valve plate cover being provided at the bottom end of the compression assembly, the compression part of the compression assembly being downward, that is, the entire pump body being installed in the housing in an inverted manner, the pump chamber being towards the bottom of the housing, this arrangement making it difficult for liquid entering the compression assembly to remain in the pump chamber, the surface of the valve plate being provided with at least one through hole, the bottom cover being provided at the bottom end of the valve plate At the bottom end, the liquid that enters the pump chamber will flow out of the through-hole into the bottom cover due to the influence of gravity, and the compression assembly will also squeeze the liquid out of the through-hole when performing the up and down compression movement, so that the liquid cannot affect the operation of the compression assembly. That is, the utility model can operate in an environment containing a small amount of liquid, and a small amount of liquid will not affect the normal operation of the vacuum pump. The motor is a dual-axis motor, and there are two compression assemblies, valve plates and bottom covers, which are relatively arranged at the two rotor ends of the motor. A cavity is formed between the valve plate and the bottom cover. The cavity can accommodate a portion of liquid to avoid interfering with the operation of the compression assembly. The cavity is connected to the compression assembly through the through-hole. The cavity is respectively connected to a filter element and a conduit. The filter element is a filter used to filter the liquid or gas entering the pump body to prevent large impurities from damaging the pump body. The conduit is used to discharge the pumped gas or liquid. By turning the pump body upside down, the liquid can flow out of the pump chamber through the through-hole, so that the vacuum pump can be used in equipment containing a small amount of liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Fig. 1 It is a schematic diagram of the overall structure of the utility model.

[0023] Fig. 2 This is one of the overall exploded views of the present utility model.

[0024] Fig. 3 This is the second overall exploded view of the present invention.

[0025] Fig. 4 This is one of the overall structural diagrams of the pump body of the present utility model.

[0026] Fig. 5 This is an exploded view of the pump body of the present invention.

[0027] Fig. 6 It is a cross-sectional view of the pump body of the present utility model.

[0028] Fig. 7 This is the second schematic diagram of the overall structure of the pump body of the present utility model.

[0029] Wherein: 1, shell; 11, second quick plug; 12, handle; 2, pump body; 21, motor; 211, rotating shaft; 212, stator; 213, rotor; 214, capacitor; 22, compression assembly; 221, casing; 2211, fan cover; 222, first bearing; 223, eccentric wheel; 224, connecting rod; 225, cylinder sleeve; 226, disc; 227, sealing ring; 23, valve plate; 231, through hole; 232, valve piece; 24, bottom cover; 25, cavity; 251, third quick plug; 252, fourth quick plug; 253, first cavity; 254, second cavity; 26, second bearing; 27, fan blade; 28, first sealing element; 29, second sealing element; 3, filter element; 31, air inlet; 32, first quick plug; 4, conduit; 5, vacuum gauge; 6, connecting pipe; 61, first pipeline; 62, second pipeline; 63, third pipeline; 64, three-way pipe; 7, shockproof element; 8, cooling assembly; 9, foot pad; 10, partition plate. DETAILED DESCRIPTION

[0030] As some terms can be used in the specification and claims, those skilled in the art should understand that manufacturers can use different names to refer to the same component. The specification and claims of the present application do not distinguish components by name differences, but by functional differences. As mentioned throughout the specification and claims, "including" is an open term, which should be interpreted as "including but not limited to". In the utility model, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be interpreted broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] The utility model will be further described in detail below in combination with the drawings Figs. 1-7 and specific embodiments, but not as a limitation on the utility model.

[0032] Example 1

[0033] The utility model provides an automatic drainage vacuum pump, including casing 1 and pump body 2, pump body 2 is installed in casing 1, and pump body 2 is electrically connected with switch, and pump body 2 includes motor 21, compression assembly 22, valve plate 23 and bottom cover 24, motor 21 is connected with compression assembly 22, and compression assembly 22 is used to pump out gas, and the inside of compression assembly 22 has pump cavity, and the volume of pump cavity can be changed through the compression movement of compression assembly 22, so that gas can be pumped in and pumped out, valve plate 23 is used to separate pump cavity and bottom cover 24, can reduce the probability that liquid enters pump cavity, valve plate 23 cover is arranged at the bottom end of compression assembly 22, and the compression part of compression assembly 22 is downward, that is, the overall inverted mode of pump body 2 is installed in casing 1, and pump cavity is towards the bottom of casing 1, and this setting makes liquid into compression assembly 22 difficult to stay in pump cavity, the surface of valve plate 23 has at least one through hole 231, bottom cover 24 is installed at the bottom end of valve plate 23, and liquid into pump cavity will flow out from through hole 231 and enter into bottom cover 24 due to gravity, and compression assembly 22 will also squeeze liquid out from through hole 231 when carrying out the compression movement up and down, so that liquid can not affect the operation of compression assembly 22, namely, the utility model can operate in the environment containing a small amount of liquid, and a small amount of liquid can not affect the normal work of vacuum pump, motor 21 is double-shaft motor, and compression assembly 22, valve plate 23 and bottom cover 24 are all two, and are oppositely arranged at the two rotors 213 ends of motor 21, and the cavity 25 is enclosed between valve plate 23 and bottom cover 24, and the cavity 25 can accommodate a part of liquid, avoids the operation of compression assembly 22, and the cavity 25 is communicated with compression assembly 22 through through hole 231, and the cavity 25 is respectively communicated with filter piece 3 and conduit 4, and the middle of cavity 25 is provided with the partition plate 10 that divides the cavity 25 into first cavity 253 and second cavity 254, the first cavity 253 is communicated with filter piece 3, and the first cavity 253 is communicated with pump cavity through through hole 231, and the second cavity 254 is communicated with conduit 4, and the second cavity 254 is communicated with pump cavity through through hole 231, and the side of valve plate 23 towards second cavity 254 is provided with valve piece 232, liquid enters first cavity 253 after passing through filter piece 3, then enters pump cavity through through hole 231, and then enters second cavity 254 through the through hole 231 that is communicated with second cavity 254, and finally flows into conduit 4, by setting valve piece 232, liquid can be prevented from flowing back into pump cavity, filter piece 3 is filter, is used for filtering liquid or gas into pump body 2, prevents big block impurity from damaging pump body 2, and conduit 4 is used for discharging pumped gas or liquid. By inverting pump body 2, liquid can flow out from pump cavity through through hole 231, so that vacuum pump can be used in the equipment containing a small amount of liquid.

[0034] In this embodiment, the side of the shell 1 is provided with a vacuum gauge 5, the pump body 2 and the filter 3 are communicated through the connecting pipe 6, and the vacuum gauge 5 is communicated with the connecting pipe 6. The arrangement of the vacuum gauge 5 facilitates the observation of the working condition of the pump body 2, and prevents the pump body 2 from working under the condition of short circuit or other fault and causing damage to the equipment.

[0035] In this embodiment, at least one shockproof piece 7 is arranged between the shell 1 and the pump body 2, and the shockproof piece 7 is connected to the shell 1 and the pump body 2 respectively. The shockproof piece 7 is a spring shockproof foot, and there are four in total, which is used to fix the pump body 2 on the shell 1 and can reduce the noise of the pump body 2 during operation.

[0036] In this embodiment, the top of the shell 1 is provided with a cooling assembly 8, which is used to reduce the temperature in the shell 1. The cooling assembly 8 is a cooling fan, which can prevent the pump body 2 from overheating during operation.

[0037] Embodiment 2

[0038] The difference between this embodiment and embodiment 1 is that at least one foot pad 9 is arranged at the bottom of the shell 1. The foot pad 9 is a horn foot, which can better support the shell 1, and also allows the shell 1 to maintain a certain distance from the ground, avoiding water from seeping into the shell 1, and also plays a certain shock-absorbing role.

[0039] In this embodiment, the filter 3 is installed on the shell 1, and the air inlet 31 of the filter 3 is provided with a first quick plug 32, which is communicated with the filter 3. The first quick plug 32 is a 2-minute internal tooth 12 quick plug, which is used to improve the efficiency of connection with external equipment.

[0040] In this embodiment, a second quick plug 11 is installed on the shell 1, which is communicated with the conduit 4. The second quick plug 11 is a 2-minute internal tooth 12 quick plug, which is used to improve the efficiency of connection with external equipment, and the second quick plug 11 is communicated with a waterproof joint.

[0041] In this embodiment, the connecting pipe 6 includes a first pipe 61 and a second pipe 62, the vacuum gauge 5 is communicated with the first pipe 61 and the second pipe 62 through a third pipe 63, and the first pipe 61, the second pipe 62 and the third pipe 63 are communicated through a three-way pipe 64. This arrangement facilitates the user to adjust the position of the pipe.

[0042] In this embodiment, the cavity 25 is respectively communicated with a third quick plug 251 and a fourth quick plug 252, the third quick plug 251 is communicated with the second pipe 62, and the fourth quick plug 252 is communicated with the conduit 4. The third quick plug 251 is a 2-minute internal tooth 12 quick plug, and the fourth quick plug 252 is a 2-minute internal tooth 12 quick plug.

[0043] In this embodiment, the compression assembly 22 includes a casing 221, a first bearing 222, an eccentric wheel 223, a connecting rod 224 and a cylinder sleeve 225. The first bearing 222, the eccentric wheel 223, the connecting rod 224 and the cylinder sleeve 225 are all arranged in the casing 221. The eccentric wheel 223 is transmission-connected to the rotating shaft 211 of the motor 21. One end of the connecting rod 224 is sleeved on the side of the eccentric wheel 223. The first bearing 222 is arranged between the connecting rod 224 and the eccentric wheel 223. The other end of the connecting rod 224 extends into the cylinder sleeve 225. The interior of the cylinder sleeve 225 is a pump chamber. The rotation of the eccentric wheel 223 allows the connecting rod 224 to expand and contract in the cylinder sleeve 225, thereby changing the volume of the pump chamber and realizing the function of pumping air.

[0044] In this embodiment, the motor 21 includes a stator 212 and a rotor 213 , and the stator 212 is sleeved on the outer side of the rotor 213 .

[0045] In this embodiment, a second bearing 26 and a fan blade 27 are installed on the rotating shaft 211, and the connecting rod 224 is arranged between the second bearing 26 and the fan blade 27. A fan cover 2211 corresponding to the fan blade 27 is installed on the side of the casing 221. The fan blade 27 is used to blow out the gas in the compression component 22 to achieve cooling. The fan cover 2211 is used to prevent large impurities from entering the casing 221; the motor 21 is electrically connected to the capacitor 214. Since the dual-axis motor is a single-phase motor, the current is not stable. The setting of the capacitor 214 can regulate the current and improve the efficiency of the pump body 2; a disc 226 is provided at one end of the connecting rod 224, and a sealing ring 227 is provided between the disc 226 and the connecting rod 224. The outer edge of the sealing ring 227 is arranged around the edge of the disc 226. This setting can enhance the airtightness of the connecting rod 224 and improve the compression effect.

[0046] In this embodiment, a first seal 28 is provided between the compression assembly 22 and the valve plate 23 to enhance the sealing effect between the compression assembly 22 and the valve plate 23. A second seal 29 is provided between the valve plate 23 and the bottom cover 24 to enhance the sealing effect between the valve plate 23 and the bottom cover 24. Both the first seal 28 and the second seal 29 may be rubber pads.

[0047] In this embodiment, a handle 12 is provided on the top of the housing 1 .

[0048] The other structures of this embodiment are the same as those of embodiment 1 and will not be described again here.

[0049] Obviously, the utility model is an automatic drainage vacuum pump, comprising a casing and a pump body, the pump body is installed in the casing, the pump body comprises a motor, a compression assembly, a valve plate and a bottom cover, the motor and the compression assembly are transmission-connected, the compression assembly is used to pump out gas, there is a pump chamber inside the compression assembly, the volume of the pump chamber can be changed by the compression movement of the compression assembly, so that the gas can be sucked in and then pumped out, the valve plate is used to separate the pump chamber and the bottom cover, which can reduce the probability of liquid entering the pump chamber, the valve plate cover is arranged at the bottom end of the compression assembly, the compression part of the compression assembly is downward, that is, the whole pump body is installed in the casing in an inverted manner, and the pump chamber faces the bottom of the casing. This arrangement makes it difficult for the liquid entering the compression assembly to remain in the pump chamber, the surface of the valve plate has at least one through hole, and the bottom cover is installed at the bottom end of the valve plate. The liquid in the pump chamber will flow out of the through-hole into the bottom cover due to the influence of gravity, and the compression assembly will also squeeze the liquid out of the through-hole when performing the up and down compression movement, so that the liquid cannot affect the operation of the compression assembly. That is, the utility model can operate in an environment containing a small amount of liquid, and a small amount of liquid will not affect the normal operation of the vacuum pump. The motor is a dual-axis motor, and there are two compression assemblies, valve plates and bottom covers, which are relatively arranged at the two rotor ends of the motor. A cavity is formed between the valve plate and the bottom cover. The cavity can accommodate a portion of liquid to avoid interfering with the operation of the compression assembly. The cavity is connected to the compression assembly through the through-hole. The cavity is respectively connected to a filter element and a conduit. The filter element is a filter used to filter the liquid or gas entering the pump body to prevent large impurities from damaging the pump body. The conduit is used to discharge the pumped gas or liquid. The utility model allows the liquid to flow out of the pump chamber through the through-hole by turning the pump body upside down, so that the vacuum pump can be used in equipment containing a small amount of liquid.

[0050] Based on the disclosure and teachings of the above description, those skilled in the art will be able to make changes and modifications to the above embodiments. Therefore, the utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions, or modifications made by those skilled in the art based on the present utility model fall within the scope of protection of the present utility model. In addition, although certain specific terms are used in this description, these terms are for convenience only and do not constitute any limitation on the present utility model.

Claims

1. An automatic drainage vacuum pump, characterized in that: The invention comprises a housing (1) and a pump body (2), wherein the pump body (2) is installed in the housing (1), the pump body (2) comprises a motor (21), a compression assembly (22), a valve plate (23) and a bottom cover (24), the motor (21) and the compression assembly (22) are transmission-connected, the compression assembly (22) is used to pump out gas, the valve plate (23) is covered at the bottom end of the compression assembly (22), the surface of the valve plate (23) has at least one through hole (231), the bottom cover (24) is installed at the bottom end of the valve plate (23), a cavity (25) is formed between the valve plate (23) and the bottom cover (24), the cavity (25) is communicated with the compression assembly (22) through the through hole (231), and the cavity (25) is respectively communicated with a filter element (3) and a conduit (4).

2. The automatic drainage vacuum pump according to claim 1, characterized in that: A vacuum gauge (5) is provided on the side of the housing (1), the pump body (2) and the filter element (3) are connected via a connecting pipe (6), and the vacuum gauge (5) and the connecting pipe (6) are in communication.

3. The automatic drainage vacuum pump according to claim 1, characterized in that: At least one shock-proof component (7) is provided between the housing (1) and the pump body (2), and the shock-proof component (7) is respectively connected to the housing (1) and the pump body (2).

4. The automatic drainage vacuum pump according to claim 1, wherein: A cooling component (8) is provided on the top of the shell (1), and the cooling component (8) is used to reduce the temperature inside the shell (1).

5. The automatic drainage vacuum pump according to claim 1, wherein: At least one foot pad (9) is provided at the bottom of the housing (1).

6. The automatic drainage vacuum pump according to claim 1, wherein: The filter element (3) is mounted on the housing (1); the air inlet (31) of the filter element (3) is provided with a first quick plug (32); the first quick plug (32) is in communication with the filter element (3).

7. The automatic drainage vacuum pump according to claim 1, wherein: A second quick connector (11) is installed on the housing (1), and the second quick connector (11) is connected to the conduit (4).

8. The automatic drainage vacuum pump according to claim 2, wherein: The connecting pipe (6) comprises a first pipeline (61) and a second pipeline (62); the vacuum gauge (5) is respectively connected to the first pipeline (61) and the second pipeline (62) via a third pipeline (63); the first pipeline (61), the second pipeline (62) and the third pipeline (63) are connected via a tee pipe (64).

9. The automatic draining vacuum pump according to claim 8, wherein: The cavity (25) is respectively connected to a third quick plug (251) and a fourth quick plug (252); the third quick plug (251) is connected to the second pipeline (62); and the fourth quick plug (252) is connected to the conduit (4).

10. The automatic draining vacuum pump according to claim 1, wherein: The compression assembly (22) includes a housing (221), a first bearing (222), an eccentric wheel (223), a connecting rod (224) and a cylinder sleeve (225). The first bearing (222), the eccentric wheel (223), the connecting rod (224) and the cylinder sleeve (225) are all arranged in the housing (221). The eccentric wheel (223) is connected to the rotating shaft (211) of the motor (21) in a transmission manner. One end of the connecting rod (224) is sleeved on the side of the eccentric wheel (223). The first bearing (222) is arranged between the connecting rod (224) and the eccentric wheel (223). The other end of the connecting rod (224) extends into the cylinder sleeve (225).

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