CN219388162U - Equidistant screw vacuum pump - Google Patents

Abstract

The application relates to an equidistant screw vacuum pump, relates to vacuum pump technical field. The filter box comprises a hollow pump body, an air inlet is formed in the pump body in a penetrating mode, an air outlet is formed in the pump body in a penetrating mode through the top wall of the pump body, a rotating assembly used for enabling media to enter the body from the air inlet and to be discharged out of the pump body through the air outlet is arranged in the pump body, an upward-opening filter box is arranged in the air inlet and extends to the direction of the pump body from the air inlet, a cleaning plate is arranged in the filter box, the circumferential side wall of the cleaning plate is in butt joint with the inner wall of the filter box, a rotating rod is connected to the bottom wall of the filter box in a rotating mode, and the cleaning plate is vertically arranged through threads. The application has the effect that the impurities accumulated on the inner wall of the filter tank are convenient to clean, so that the holes on the filter tank are not easy to block and the medium passing is not affected.

Description

Equidistant screw vacuum pump

Technical Field

The application relates to the field of vacuum pumps, in particular to an equidistant screw vacuum pump.

Background

The equidistant screw vacuum pump is a technological product with very high technical content, is mainly applied to a high-purity vacuum technological process, has extremely high vacuum degree, can adapt to severe working conditions, and is particularly suitable for the fields of electronics, chemical industry, biological medicine and the like.

In the related art, grant the chinese patent of bulletin number CN214787992U, disclosed an equidistance screw vacuum pump including the pump body and motor, the both ends of the pump body are equipped with front end housing and rear end housing respectively, the top of the pump body is equipped with the air inlet, the bottom of the pump body is equipped with the gas outlet, be equipped with driving screw and driven screw in the pump body, driving screw runs through the pump body and extends to the pump body outside with the output shaft fixed connection of motor, air inlet department is equipped with the filter screen, the filter screen is big-end-up's loudspeaker shape, the filter screen extends to the pump body by the air inlet. When the device works, the motor is started to drive the driving screw to rotate, so that the driven screw is driven to rotate, the driving screw and the driven screw rotate in the same speed and opposite directions, and a medium enters the pump body from the air inlet and is conveyed to the air outlet through gaps between spiral teeth on the driving screw and the driven screw. When the medium can get into the pump body from the air inlet, the medium can pass through the filter screen first, and impurity can be intercepted by the filter screen, makes the medium that gets into the pump body contain no impurity, and after the operation, the motor is closed.

The above related art has the following drawbacks: when the medium enters the pump body through the filter screen, impurities are easy to accumulate on the filter screen, and the filter screen is in a concave shape in a horn shape with a large upper part and a small lower part, so that the filter screen is inconvenient to clean, gaps on the filter screen are easy to be blocked by the impurities, the passing of the medium is influenced, and the filter screen is to be improved.

Disclosure of Invention

In order to improve impurity and pile up the inconvenient clearance on the filter screen, lead to the filter screen to stop up the problem that influences the medium and pass through, this application provides an equidistance screw vacuum pump.

The application provides an equidistance screw vacuum pump adopts following technical scheme:

the utility model provides an equidistance screw vacuum pump, includes inside hollow pump body, the air inlet has been seted up in the roof of the pump body run through, the diapire of the pump body runs through and has seted up the gas outlet, be provided with in the pump body and be used for getting into the body with the medium and pass through the rotation subassembly of gas outlet discharge pump body from the air inlet, be provided with the ascending rose box of opening in the air inlet, the rose box extends to the direction of the pump body by the air inlet, be provided with the clearance board in the rose box, the circumference lateral wall and the inner wall butt of rose box of clearance board, rotate on the diapire of rose box and be connected with the dwang, the clearance board is worn to establish by the vertical setting of dwang and screw thread.

Through adopting above-mentioned technical scheme, when rotating the subassembly start-up for the medium gets into the pump body from the air inlet, is sent out the gas outlet with the medium by rotating the subassembly again. When the medium enters the pump body from the air inlet, the medium firstly enters the filter box and passes through the holes on the side wall of the filter box, and impurities in the medium are blocked on the inner wall of the filter box. After piling up more impurity in the rose box, easily block up the space on the rose box to influence the medium and pass the rose box and get into in the pump body, at this moment, rotatory dwang, because of dwang and clearance board threaded connection, thereby drive the clearance board and remove along the length direction of dwang, and scrape the impurity on the rose box inner wall and take off and drop to the clearance board, when the roof of clearance board remove to be in line with the roof of the pump body, stop the rotation of dwang, clear up the impurity on the clearance board afterwards, realize the clearance to impurity on the rose box inner wall, thereby make the difficult jam in hole on the rose box lateral wall can not influence the passage of medium.

Optionally, the rotating assembly includes rotation screw rod and drive screw, rotation screw rod sets up along the length direction of the pump body, just rotation screw rod's tip rotates to be connected on the pump body, fixed cover is equipped with rotation gear on the rotation screw rod, drive screw rod is parallel with rotation screw rod, just rotation screw rod's tip rotates to be connected on the pump body, fixed cover is equipped with the drive gear with rotation gear engaged with on the drive screw rod, rotation screw rod's one end stretches out the pump body and is connected with the motor, the motor is used for driving rotation screw rod rotation.

Through adopting above-mentioned technical scheme, during operation, the starter motor drives the rotation screw rod and rotates for the rotation gear rotates, thereby drives the drive gear and rotates, makes rotation screw rod and drive screw rod with the direction rotation of speed, thereby take out the external medium of pump to the pump body through the air inlet in, convey the gas outlet by the spiral tooth space on rotation screw rod and the drive screw rod again, and discharge the pump body from the gas outlet, realize bleeding.

Optionally, the opening part of rose box is provided with the connecting plate, the connecting plate is fixed and mutually perpendicular with the rose box with the lateral wall of rose box, the mounting groove has been seted up on the roof of the pump body, the mounting groove is linked together with the air inlet, the connecting plate adaptation is inserted and is established in the mounting groove.

Through adopting above-mentioned technical scheme, during the installation rose box, insert the rose box and establish in the air inlet for the connecting plate inserts to establish in the mounting groove, and the inner wall of mounting groove and the lateral wall looks butt of connecting plate play the restriction effect to the connecting plate, make the connecting plate can not take place to rotate or the removal on the horizontal direction, can realize the installation of rose box on the pump body, the simple operation.

Optionally, be provided with the mounting hole on the inner wall of mounting groove, be provided with the installation piece in the mounting hole, be provided with propulsion spring between the inner wall of installation piece and mounting hole, propulsion spring is used for advancing the installation piece to the direction that is close to the rose box, be provided with the connecting hole that supplies the installation piece to insert on the circumference lateral wall of connecting plate.

Through adopting above-mentioned technical scheme, when installing the rose box, insert the rose box earlier in the air inlet, press the installation piece then, compress propulsion spring for the installation piece is accomodate in the mounting hole completely, inserts the connecting plate and establishes in the mounting groove, and propulsion spring resumes deformation this moment, impels the installation piece to the direction that is close to the connecting plate, until the installation piece inserts and establishes in the connecting hole, the inner wall and the installation piece looks butt of connecting hole play the restriction effect, make the connecting plate can not take place to remove in the vertical direction, increased the steadiness that the rose box was installed on the pump body.

Optionally, be provided with the brush on the circumference lateral wall of clearance board, the brush is with the inner wall looks butt of rose box.

Through adopting above-mentioned technical scheme, when the dwang rotates and drives the clearance board and upwards remove for the brush supports to paste on the inner wall of rose box and slides, makes the brush produce static with the inner wall of rose box, because the electrified body can adsorb slight object, thereby be convenient for clear up out the impurity in the hole on the rose box, the cleaning performance is better.

Optionally, the brush is close to one side of clearance board and is provided with magnet, be provided with the iron sheet that can attract with magnet on the circumference lateral wall of clearance board.

Through adopting above-mentioned technical scheme, after the brush clearance has finished impurity on the rose box inner wall, easy absorption is more impurity on the brush, can separate the magnet and the iron sheet on the old brush this moment, and then with the magnet and the iron sheet looks actuation on the new brush, realize the change of brush, the simple operation.

Optionally, a handle is provided at an end of the rotating rod.

Through adopting above-mentioned technical scheme, the handle provides the application of force position for the hand for rotate the dwang labour saving and time saving more.

Optionally, the opening part of rose box is provided with the limiting plate, the limiting plate is fixed on the inner wall of rose box, be provided with the spacing groove on the roof of clearance board, the limiting plate can insert and establish at the spacing inslot.

Through adopting above-mentioned technical scheme, the dwang rotates and drives the clearance board and upwards moves, when the roof of clearance board remove to with the roof of the pump body level at ordinary times, the limiting plate inserts and establishes at the spacing inslot, and the limiting plate plays the limiting effect for the clearance board can not remove out the rose box completely, has increased the steadiness that clearance board and rose box are connected.

In summary, the present application includes at least one of the following beneficial effects:

1. when the medium enters the pump body from the air inlet, the medium firstly enters the filter box and passes through the holes on the side wall of the filter box, and impurities in the medium are blocked on the inner wall of the filter box. When more impurities are accumulated in the filter box, gaps on the filter box are easy to block, so that the medium is influenced to pass through the filter box and enter the pump body, at the moment, the rotating rod is rotated, the cleaning plate is driven to move along the length direction of the rotating rod due to the threaded connection of the rotating rod and the cleaning plate, the impurities on the inner wall of the filter box are scraped and taken down to fall onto the cleaning plate, when the top wall of the cleaning plate moves to be level with the top wall of the pump body, the rotation of the rotating rod is stopped, then the impurities on the cleaning plate are cleaned, the cleaning of the impurities on the inner wall of the filter box is realized, and the holes on the side wall of the filter box are difficult to block, so that the passing of the medium is not influenced;

2. when installing the rose box, insert the rose box and establish in the air inlet for the connecting plate inserts and establishes in the mounting groove, and the inner wall of mounting groove and the lateral wall looks butt of connecting plate play the restriction effect to the connecting plate, make the connecting plate can not take place to rotate or the removal on the horizontal direction, can realize the installation of rose box on the pump body, simple operation.

Drawings

FIG. 1 is a schematic diagram of an equidistant screw vacuum pump according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of a pump body structure;

FIG. 3 is a schematic view of a rotating assembly;

FIG. 4 is an enlarged view of FIG. 2 at A;

FIG. 5 is a schematic diagram of the structure of the filter box;

fig. 6 is an enlarged view at B in fig. 2.

In the figure: 10. a pump body; 11. an air inlet; 12. an air outlet; 13. a mounting groove; 14. a mounting hole; 20. a rotating assembly; 21. rotating the screw; 211. rotating the gear; 22. a drive screw; 221. a transmission gear; 30. a motor; 40. a filter box; 50. a cleaning plate; 51. iron sheet; 52. a limit groove; 60. a brush; 61. a magnet; 70. a rotating lever; 71. a handle; 80. a connecting plate; 81. a connection hole; 90. a mounting block; 110. a propulsion spring; 120. and a limiting plate.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-6.

The embodiment of the application discloses an equidistant screw vacuum pump. Referring to fig. 1 and 2, the equidistant screw vacuum pump includes a table on which a pump body 10 having a hollow interior is fixed, the pump body 10 being placed along a length direction of the table. An air inlet 11 is formed in the top wall of the pump body 10 in a penetrating manner, and an air outlet 12 is formed in the bottom wall of the pump body 10 in a penetrating manner.

Referring to fig. 3, a rotation assembly 20 is provided in the pump body 10, the rotation assembly 20 includes a rotation screw 21 and a driving screw 22, the rotation screw 21 and the driving screw 22 are all provided along a length direction of the pump body 10, and end portions of the rotation screw 21 and the driving screw 22 are all rotatably connected to an inner wall of the pump body 10. The rotating screw 21 is fixedly sleeved with a rotating gear 211, the rotating gear 211 is coaxial with the rotating screw 21, the driving screw 22 is fixedly sleeved with a driving gear 221, the driving gear 221 is coaxial with the driving screw 22, and the rotating gear 211 is meshed with the driving gear 221. One end of the rotating screw 21 is coaxially fixed with a connecting rod, the connecting rod extends out of the pump body 10 and is connected with a motor 30, the motor 30 is used for driving the connecting rod to rotate, and the motor 30 is fixed on the workbench through bolts.

In operation, the motor 30 is started to drive the rotary screw 21 to rotate, so that the rotary gear 211 rotates, and the transmission gear 221 is driven to rotate, so that the rotary screw 21 and the transmission screw 22 rotate in the same speed direction, and medium outside the pump body 10 is pumped into the pump body 10 through the air inlet 11, is conveyed to the air outlet 12 through gaps between spiral teeth on the rotary screw 21 and the transmission screw 22, and is discharged from the air outlet 12.

Referring to fig. 2 and 4, in order to reduce the possibility of dust in a medium or fixed particulate iron metal scraps entering the pump body 10, a mounting groove 13 is formed in the top wall of the pump body 10, the mounting groove 13 is communicated with the air inlet 11, a filter box 40 with an open top is vertically inserted in the air inlet 11, the filter box 40 is a square box made of metal, a plurality of holes are formed in the circumferential side wall of the filter box 40, a connecting plate 80 is welded on the circumferential side wall of the filter box 40, the connecting plate 80 is perpendicular to the filter box 40, the connecting plate 80 is located at the open top of the filter box 40, and the connecting plate 80 can be inserted in the mounting groove 13 in an adapting manner.

When the filter box 40 is installed, the filter box 40 is inserted into the air inlet 11, the connecting plate 80 is inserted into the mounting groove 13, the inner wall of the mounting groove 13 is abutted against the side wall of the connecting plate 80, the limiting effect is achieved on the connecting plate 80, the connecting plate 80 cannot rotate or move horizontally, and the filter box 40 can be installed on the pump body 10. When the medium enters the pump body 10 from the air inlet 11, the medium first enters the filter box 40 and passes through the pores on the side wall of the filter box 40, and the impurities in the medium are blocked on the inner wall of the filter box 40.

Referring to fig. 4, in order to increase the stability of the filter box 40 mounted on the pump body 10, a mounting hole 14 is formed in the inner wall of the mounting groove 13 in the vertical direction, a mounting block 90 is horizontally inserted into the mounting hole 14, a pushing spring 110 is disposed between the mounting block 90 and the inner wall of the mounting hole 14, the pushing spring 110 is used for pushing the mounting block 90 in a direction approaching to the air inlet 11, and a connecting hole 81 for inserting the mounting block 90 is formed in the circumferential side wall of the connecting plate 80.

When the filter box 40 is installed, the filter box 40 is inserted into the air inlet 11, the installation block 90 is pressed, the pushing spring 110 is compressed, the installation block 90 is completely contained in the installation hole 14, the connecting plate 80 is inserted into the installation groove 13, the pushing spring 110 is deformed in a recovery mode, the installation block 90 is pushed in the direction close to the connecting plate 80 until the installation block 90 is inserted into the connecting hole 81, the inner wall of the connecting hole 81 is abutted against the installation block 90, the limiting effect is achieved, the connecting plate 80 cannot move in the vertical direction, and the stability of the filter box 40 installed on the pump body 10 is improved.

Referring to fig. 5, after a lot of impurities are accumulated in the filter tank 40 and on the inner wall of the filter tank 40, the filter tank 40 is easily blocked, the passage of the medium is affected, a cleaning plate 50 is placed on the inner bottom wall of the filter tank 40, the circumferential side wall of the cleaning plate 50 is abutted against the inner wall of the filter tank 40, a rotating rod 70 is rotatably connected to the inner bottom wall of the filter tank 40, the rotating rod 70 is vertically arranged, the cleaning plate 50 is threaded, and a handle 71 is fixed to the top end of the rotating rod 70 in order to facilitate the rotation of the rotating rod 70.

After piling up more impurity in the rose box 40, easily block up the space on the rose box 40 to influence the medium and pass rose box 40 and get into in the pump body 10, at this moment, rotate handle 71, make dwang 70 rotate, because of dwang 70 and clearance board 50 threaded connection, thereby drive clearance board 50 and remove along the length direction of dwang 70, and scrape the impurity on the rose box 40 inner wall and take off and drop to clearance board 50, when clearance board 50's roof moves to be in level with the roof of pump body 10, stop the rotation of dwang 70, then clear up the impurity on the clearance board 50, realize the clearance to impurity on the rose box 40 inner wall, thereby the clearance on the filter box 40 lateral wall is difficult for blockking up and can not influence the passage of medium.

Referring to fig. 5, when the rotating rod 70 rotates to drive the cleaning plate 50 to move upwards, in order to prevent the cleaning plate 50 from completely moving out of the filter box 40, a limiting plate 120 is fixed on the inner wall of the filter box 40, the limiting plate 120 is located at the top opening of the filter box 40, a limiting groove 52 is formed on the top wall of the cleaning plate 50, and the limiting plate 120 can be adaptively inserted into the limiting groove 52. When the top wall of the cleaning plate 50 moves to be level with the top wall of the pump body 10, the limiting plate 120 is inserted into the limiting groove 52, and the limiting plate 120 plays a limiting role, so that the cleaning plate 50 cannot completely move out of the filter box 40, and the connection stability of the cleaning plate 50 and the filter box 40 is increased.

Referring to fig. 5, in order to make the cleaning filter box 40 cleaner, brushes 60 are provided on circumferential side walls of the cleaning plate 50, and the brushes 60 are abutted against inner walls of the filter box 40. When the rotating rod 70 rotates to drive the cleaning plate 50 to move upwards, the brush 60 is propped against and slides on the inner wall of the filter box 40, so that static electricity is generated between the brush 60 and the inner wall of the filter box 40, and the charged body can adsorb light objects, so that impurities in the holes on the filter box 40 can be conveniently cleaned out, and the cleaning effect is better.

Referring to fig. 6, after the brush 60 cleans impurities on the inner wall of the filter box 40, the brush 60 is easily adsorbed with more impurities, in order to facilitate replacement of the brush 60, an iron sheet 51 is fixed on the circumferential side wall of the cleaning plate 50, and a magnet 61 is fixed on one side of the brush 60 close to the cleaning plate 50, and the magnet 61 is attracted with the iron sheet 51.

The implementation principle of the equidistant screw vacuum pump in the embodiment of the application is as follows: in operation, the motor 30 is started to drive the rotary screw 21 to rotate, so that the rotary gear 211 rotates, and the transmission gear 221 is driven to rotate, so that the rotary screw 21 and the transmission screw 22 rotate in the same speed direction, and medium outside the pump body 10 is pumped into the pump body 10 through the air inlet 11, is conveyed to the air outlet 12 through gaps between spiral teeth on the rotary screw 21 and the transmission screw 22, and is discharged from the air outlet 12.

When the medium enters the pump body 10 from the air inlet 11, the medium first enters the filter box 40 and passes through the pores on the side wall of the filter box 40, and the impurities in the medium are blocked on the inner wall of the filter box 40. After stacking more impurity in the rose box 40, easily block up the space on the rose box 40 to influence the medium and pass rose box 40 and get into in the pump body 10, at this moment, rotatory dwang 70, because of dwang 70 and clearance board 50 threaded connection, thereby drive clearance board 50 and remove along the length direction of dwang 70, and scrape the impurity on the rose box 40 inner wall and drop on the clearance board 50, when the roof of clearance board 50 moves to be in the same level with the roof of pump body 10, stop the rotation of dwang 70, then clear up the impurity on the clearance board 50, realize the clearance to impurity on the rose box 40 inner wall, thereby the clearance on the filter box 40 lateral wall is difficult for blocking up and can not influence the passage of medium.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. Equidistant screw vacuum pump, a serial communication port, including inside hollow pump body (10), air inlet (11) have been seted up in the roof penetration of pump body (10), air outlet (12) have been seted up in the diapire penetration of pump body (10), be provided with in pump body (10) and be used for getting into body and through air outlet (12) discharge pump body (10) rotation subassembly (20) with medium from air inlet (11), be provided with ascending rose box (40) of opening in air inlet (11), rose box (40) are extended by air inlet (11) to the direction of pump body (10), be provided with clearance board (50) in rose box (40), the circumference lateral wall and the inner wall butt of rose box (40) of clearance board (50), rotate on the diapire of rose box (40) and be connected with dwang (70), clearance board (50) are worn to establish by the screw thread to dwang (70) are vertical.

2. The equidistant screw vacuum pump according to claim 1, characterized in that the rotating assembly (20) comprises a rotating screw (21) and a driving screw (22), the rotating screw (21) is arranged along the length direction of the pump body (10), the end part of the rotating screw (21) is rotationally connected to the pump body (10), a rotating gear (211) is fixedly sleeved on the rotating screw (21), the driving screw (22) is parallel to the rotating screw (21), the end part of the driving screw (22) is rotationally connected to the pump body (10), a driving gear (221) meshed with the rotating gear (211) is fixedly sleeved on the driving screw (22), one end of the rotating screw (21) extends out of the pump body (10) and is connected with a motor (30), and the motor (30) is used for driving the rotating screw (21) to rotate.

3. Equidistant screw vacuum pump according to claim 1, characterized in that the opening part of the filter tank (40) is provided with a connecting plate (80), the connecting plate (80) is fixed with the side wall of the filter tank (40) and is perpendicular to the filter tank (40), the top wall of the pump body (10) is provided with a mounting groove (13), the mounting groove (13) is communicated with the air inlet (11), and the connecting plate (80) is inserted in the mounting groove (13) in an adapting way.

4. An equidistant screw vacuum pump as claimed in claim 3, characterized in that the inner wall of the mounting groove (13) is provided with a mounting hole (14), a mounting block (90) is arranged in the mounting hole (14), a pushing spring (110) is arranged between the mounting block (90) and the inner wall of the mounting hole (14), the pushing spring (110) is used for pushing the mounting block (90) towards a direction approaching the filter box (40), and a connecting hole (81) for inserting the mounting block (90) is arranged on the circumferential side wall of the connecting plate (80).

5. Equidistant screw vacuum pump as in claim 1, characterized in that the circumferential side wall of the cleaning plate (50) is provided with brushes (60), which brushes (60) are in abutment with the inner wall of the filter box (40).

6. The equidistant screw vacuum pump as in claim 5, wherein the brush (60) is provided with a magnet (61) on a side of the cleaning plate (50), and an iron sheet (51) that can attract the magnet (61) is provided on a circumferential side wall of the cleaning plate (50).

7. Equidistant screw vacuum pump according to claim 1, characterized in that the end of the turning rod (70) is provided with a handle (71).

8. The equidistant screw vacuum pump as recited in claim 1, wherein a limiting plate (120) is disposed at an opening of the filter tank (40), the limiting plate (120) is fixed on an inner wall of the filter tank (40), a limiting groove (52) is disposed on a top wall of the cleaning plate (50), and the limiting plate (120) is insertable into the limiting groove (52).