Vertical reciprocating vacuum pump

Abstract

The application provides a vertical reciprocating vacuum pump and relates to the technical field of vacuum pumps. The vertical reciprocating vacuum pump comprises a box body, the top of the box body is fixedly connected with a cylinder body base through bolts, the top of the cylinder body base is fixedly connected with a cylinder body, the lower end of the cylinder body penetrates and is slidably connected with a piston, the top of the piston is provided with a water collecting groove, the water collecting groove penetrates the piston, the middle of the bottom of the piston penetrates and is slidably connected with a hollow pipe, and the upper end of the hollow pipe corresponds to the water collecting groove. The water collecting groove is used for collecting the accumulated liquid in the cavity into the hollow pipe and into the drainage hose. When the piston rises, the air in the cavity is compressed, then the electromagnetic valve is opened, the accumulated liquid in the drainage hose is transported, then the accumulated liquid is discharged through the electromagnetic valve and the water outlet pipe, and finally the electromagnetic valve is closed when the piston moves downward, so that the accumulated liquid in the cavity of the cylinder body can be quickly discharged, and the accumulated liquid in the cylinder is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vacuum pumps, in particular to a vertical reciprocating vacuum pump. BACKGROUND

[0002] The vacuum pump refers to a device or equipment for obtaining vacuum by using mechanical, physical, chemical or physical-chemical methods to pump the container, and there are various types of vacuum pumps, and the reciprocating vacuum pump is one of them, and when working, the reciprocating vacuum pump mainly drives the piston in the cylinder to move linearly through the crank connecting rod, and the reciprocating vacuum pump can be divided into vertical and horizontal types.

[0003] The current vertical reciprocating vacuum pump does not have the function of discharging the accumulated liquid in the cylinder, and if the device for separating water vapor fails when the vacuum pump is working, the accumulated liquid in the cylinder will be caused, and at the same time, the accumulated liquid in the cylinder will not only corrode the metal parts in the pump, but also affect the normal work of the vacuum pump, therefore, a vacuum pump which can quickly discharge the accumulated liquid in the cylinder is introduced, and the liquid discharge work can be carried out when the vacuum pump is working. SUMMARY

[0004] In view of the defects of the prior art, the vertical reciprocating vacuum pump is provided, which solves the problem of difficult discharge of the accumulated liquid in the cylinder of the vertical reciprocating vacuum pump.

[0005] In order to achieve the above purpose, the following technical scheme is adopted: the vertical reciprocating vacuum pump comprises a box body, a cylinder bottom is fixedly connected to the top of the box body through bolts, a cylinder is fixedly connected to the top of the cylinder bottom, a piston is slidably connected to the lower end of the cylinder, a water collecting groove is arranged on the top of the piston and penetrates the piston, a hollow pipe is slidably connected to the middle of the bottom of the piston, and the upper end of the hollow pipe corresponds to the water collecting groove, a connecting rod mounting seat is fixedly connected to the lower end of the hollow pipe, a connecting rod is rotatably connected to the lower side of the connecting rod mounting seat, a connecting shaft is fixedly connected to the lower front end of the connecting rod, a belt wheel mounting frame is fixedly connected to the middle of the inner bottom of the box body, a limiting shaft is rotatably connected to the upper part of the belt wheel mounting frame, a second belt wheel is fixedly connected to the rear end of the limiting shaft, and the connecting shaft penetrates and is rotatably connected with the second belt wheel, a drain hose is fixedly connected to the lower right end of the hollow pipe, an electromagnetic valve is fixedly connected to the right end of the drain hose, and the electromagnetic valve is fixedly connected with the right inner wall of the box body, an installation base is fixedly connected to the bottom of the box body, a protective cover is fixedly connected to the lower part of the right outer wall of the box body, an electric motor is fixedly connected to the right part of the top of the installation base, the output end of the electric motor penetrates the protective cover, flange joint connecting pipes are fixedly connected to the middle of the left and right outer walls of the cylinder, and connecting pipes are fixedly connected to the upper sides of the flange joint connecting pipes.

[0006] Preferably, the cylinder top is fixedly connected with a flange plate through bolts, and a first sealing ring is arranged between the cylinder and the flange plate.

[0007] Preferably, an annular sealing gasket is arranged between the hollow pipe top and the piston and located inside the piston, and a second sealing ring is fixedly connected with the upper and lower side walls of the piston and in sliding connection with the cylinder.

[0008] Preferably, a hollow pipe locking block is fixedly connected with the middle part of the water collecting groove bottom through bolts, and the hollow pipe penetrates through the hollow pipe locking block, a second annular limiting block is arranged between the piston and the hollow pipe locking block, and the hollow pipe penetrates through and is fixedly connected with the second annular limiting block.

[0009] Preferably, a reinforced limiting plate is fixedly connected with the middle part of the cylinder base bottom and penetrated by the hollow pipe, the hollow pipe penetrates through the box, and a first annular limiting block is arranged on the upper part of the front and rear inner side walls of the pulley mounting frame and penetrated by the limiting shaft and fixedly connected with the first annular limiting block.

[0010] Preferably, a maintenance cover is arranged on the left lower part of the box, and a water outlet pipe is fixedly connected with the right port of the electromagnetic valve and penetrates through and is fixedly connected with the box.

[0011] Preferably, a first pulley is arranged inside the right part of the protective cover and fixedly connected with the output end of the motor, and a belt is arranged between the second pulley and the first pulley.

[0012] Preferably, an exhaust valve is fixedly connected with the upper end of the left connecting pipe and penetrates through and is fixedly connected with the cylinder at the other port, an air inlet valve is fixedly connected with the upper end of the right connecting pipe and penetrates through and is fixedly connected with the cylinder at the other port, and an opening is arranged on the upper part of the left and right inner walls of the cylinder and corresponds to the exhaust valve and the air inlet valve respectively.

[0013] Working principle: first through the opening installation base on the motor, then the motor will drive the first pulley rotation and transmission through the belt, so that the second pulley with the axis of the limiting shaft as the center of rotation begins to rotate, wherein the pulley mounting frame and the first ring-shaped limiting block have the effect of preventing the limiting shaft from deviating, then the second pulley drives the connecting rod through the connecting shaft, at the same time, the connecting rod will rotate relative to the connecting rod mounting seat, and the connecting rod mounting seat will drive the hollow tube reciprocating motion, in the process, the piston will move up and down along the inner wall of the cylinder and cooperate with the exhaust valve and the suction valve to perform the pumping movement, wherein, in the process of the piston moving downward, the gas will enter the cavity above the piston through the left flange joint connecting pipe, the left connecting pipe, the exhaust valve and the left opening, and will be accompanied by the piston moving downward, so that the internal cavity of the cylinder will be filled, then the piston will move upward, in the process, the gas in the cavity is discharged through the right opening, the suction valve, the right connecting pipe and the right flange joint connecting pipe, so as to realize one-way pumping, if there is liquid in the cavity above the piston, first, the liquid in the cavity is gathered into the hollow tube hole through the water collecting groove and flows into the drain hose, then the electromagnetic valve is opened when the piston rises, because the piston moves upward is exhaust, and the air in the cavity will be compressed, then the air in the cavity will be transported to the drain hose through the hollow tube and transport the liquid in the drain hose, so that the liquid is discharged through the electromagnetic valve and the water outlet pipe, and the first sealing ring between the flange and the cylinder has the effect of increasing the sealing property, the protective cover on the installation base has the protection effect, opening the maintenance cover can overhaul the internal structure of the box, the annular sealing gasket has the effect of improving the sealing property of the connection between the hollow tube and the piston, the hollow tube is limited by the cooperation of the hollow tube locking block and the second annular limiting block, and the hollow tube is fixed by fixing the hollow tube locking block to the piston, so that the hollow tube is fixed, and the reinforcing limiting plate has the effect of limiting the hollow tube and plugging the hole at the top of the cylinder base.

[0014] The present application provides a vertical reciprocating vacuum pump. Has the following beneficial effects:

[0015] The present application gathers the liquid in the cavity into the hollow tube hole through the water collecting groove and flows into the drain hose, when the piston rises, the air in the cavity will be compressed, then the electromagnetic valve is opened, so that the liquid in the drain hose will be transported, then the liquid is discharged through the electromagnetic valve and the water outlet pipe, finally the electromagnetic valve is closed when the piston moves downward, so that the liquid in the cavity of the cylinder can be quickly discharged, and the liquid can be discharged when the vacuum pump is working, so as to avoid the liquid in the cylinder and protect the internal structure. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall schematic diagram of the present application;

[0017] Figure 2 is a second belt wheel part structure diagram of the present application;

[0018] Figure 3 is an exploded view of the present application;

[0019] Figure 4 is a hollow pipe structure diagram of the present application;

[0020] Figure 5 is a connecting rod part structure diagram of the present application;

[0021] Figure 6 is a hollow pipe locking block structure diagram of the present application;

[0022] Figure 7 is a cylinder sectional view of the present application.

[0023] Wherein, 1, box; 2, maintenance cover; 3, flange plate; 4, first sealing ring; 5, cylinder; 6, motor; 7, first belt wheel; 8, protective cover; 9, belt; 10, belt wheel mounting frame; 11, second belt wheel; 12, mounting base; 13, water outlet pipe; 14, suction valve; 15, connecting pipe; 16, flange joint connecting pipe; 17, cylinder base; 18, electromagnetic valve; 19, drain hose; 20, reinforced limiting plate; 21, hollow pipe; 22, connecting rod mounting seat; 23, connecting rod; 24, connecting shaft; 25, first annular limiting block; 26, limiting shaft; 27, annular sealing gasket; 28, hollow pipe locking block; 29, second annular limiting block; 30, opening; 31, exhaust valve; 32, water collecting groove; 33, piston; 34, second sealing ring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0025] Embodiment:

[0026] As Figures 1-7As shown, the embodiment of the present application provides a vertical reciprocating vacuum pump, which comprises a box body 1, the top of the box body 1 is fixedly connected with a cylinder base 17 through bolts, first, the motor 6 on the installation base 12 is started, the top of the cylinder base 17 is fixedly connected with a cylinder 5, the lower end of the cylinder 5 penetrates and is slidably connected with a piston 33, then the motor 6 drives the first pulley 7 in the protective cover 8 to rotate and drives the second pulley 11 to rotate through the transmission of the belt 9, the piston 33 is provided with a water collecting groove 32 and the water collecting groove 32 penetrates the piston 33, the middle of the bottom of the piston 33 penetrates and is slidably connected with a hollow pipe 21 and the upper port of the hollow pipe 21 corresponds to the water collecting groove 32, wherein the pulley mounting frame 10 and the first annular limiting block 25 have the effect of preventing the limiting shaft 26 from deviating, then the second pulley 11 drives the connecting rod 23 to move through the connecting shaft 24, the lower end of the hollow pipe 21 is fixedly connected with a connecting rod mounting seat 22, the lower side of the connecting rod mounting seat 22 is rotatably connected with the connecting rod 23, the front lower end of the connecting rod 23 is fixedly connected with the connecting shaft 24, at the same time, the connecting rod 23 will rotate relative to the connecting rod mounting seat 22, and the connecting rod mounting seat 22 drives the hollow pipe 21 to reciprocate up and down, the middle of the inner bottom of the box body 1 is fixedly connected with the pulley mounting frame 10, the upper part of the pulley mounting frame 10 penetrates and is rotatably connected with the limiting shaft 26, the piston 33 moves up and down along the inner wall of the cylinder 5 and cooperates with the exhaust valve 31 and the air inlet valve 14 to perform the air exhaust movement, the rear end of the limiting shaft 26 is fixedly connected with the second pulley 11 and the connecting shaft 24 penetrates and is rotatably connected with the second pulley 11, the right lower end of the hollow pipe 21 penetrates and is fixedly connected with a drain hose 19, in the process that the piston 33 moves downward, the gas enters the cavity above the piston 33 through the left flange joint connecting pipe 16, the left connecting pipe 15, the exhaust valve 31 and the left opening 30, and is accompanied by the downward movement of the piston 33, the right end of the drain hose 19 is fixedly connected with an electromagnetic valve 18 and the electromagnetic valve 18 is fixedly connected with the right inner wall of the box body 1, if there is liquid accumulation in the cavity above the piston 33, first, the liquid accumulation in the cavity is gathered into the inner hole of the hollow pipe 21 through the water collecting groove 32 and flows into the drain hose 19, the bottom of the box body 1 is fixedly connected with the installation base 12, the lower part of the right outer wall of the box body 1 is fixedly connected with the protective cover 8, the top right part of the installation base 12 is fixedly connected with the motor 6 and the output end of the motor 6 penetrates the protective cover 8, then the piston 33 moves upward, in this process, the gas in the cavity is discharged through the right opening 30, the air inlet valve 14, the right connecting pipe 15 and the right flange joint connecting pipe 16, the left and right outer walls of the cylinder 5 are both fixedly connected with the flange joint connecting pipe 16, and the upper sides of the flange joint connecting pipes 16 both penetrate and are fixedly connected with the connecting pipes 15.

[0027] The top of the cylinder 5 is fixedly connected with a flange plate 3 through bolts, the first sealing ring 4 between the flange plate 3 and the cylinder 5 has the effect of increasing the sealing property, and the first sealing ring 4 is arranged between the cylinder 5 and the flange plate 3.

[0028] The annular sealing gasket 27 is arranged between the top of the hollow pipe 21 and the piston 33 and inside the piston 33, and has the effect of improving the sealing of the connection between the hollow pipe 21 and the piston 33. The second sealing ring 34 is fixedly connected to the upper and lower side walls of the piston 33 and is in sliding connection with the cylinder body 5.

[0029] The hollow pipe locking block 28 is fixedly connected to the middle of the bottom of the water collecting groove 32, and the hollow pipe 21 penetrates through the hollow pipe locking block 28. The hollow pipe 21 can be restricted by the cooperation of the hollow pipe locking block 28 and the second annular limiting block 29. The second annular limiting block 29 is arranged between the piston 33 and the hollow pipe locking block 28, and the hollow pipe 21 penetrates through and is fixedly connected with the second annular limiting block 29.

[0030] The reinforced limiting plate 20 penetrates through and is fixedly connected to the middle of the bottom of the cylinder base 17, and the hollow pipe 21 penetrates through the reinforced limiting plate 20. The reinforced limiting plate 20 has the effects of restricting the hollow pipe 21 and plugging the hole at the top of the cylinder base 17. The hollow pipe 21 penetrates through the box body 1. The first annular limiting block 25 is arranged on the upper position of the inner side wall of the front and rear of the wheel mounting bracket 10, and the limiting shaft 26 penetrates through and is fixedly connected with the first annular limiting block 25.

[0031] The maintenance cover 2 is arranged on the left lower part of the box body 1. By fixing the hollow pipe locking block 28 to the piston 33, the hollow pipe 21 is fixed. The water outlet pipe 13 is fixedly connected to the right end of the electromagnetic valve 18 and penetrates through and is fixedly connected with the box body 1.

[0032] The first pulley 7 is arranged inside the right part of the protective cover 8 and is fixedly connected with the output end of the motor 6. The protective cover 8 on the mounting base 12 has the effect of protection. The internal structure of the box body 1 can be maintained by opening the maintenance cover 2. The belt 9 is arranged between the second pulley 11 and the first pulley 7.

[0033] The exhaust valve 31 is fixedly connected to the upper end of the left connecting pipe 15, and the other port of the exhaust valve 31 penetrates through and is fixedly connected with the cylinder body 5. The accumulated liquid is discharged through the electromagnetic valve 18 and the water outlet pipe 13. When the piston 33 moves downward, the electromagnetic valve 18 is closed. The air inlet valve 14 is fixedly connected to the upper end of the right connecting pipe 15, and the other port of the air inlet valve 14 penetrates through and is fixedly connected with the cylinder body 5. The openings 30 are arranged on the upper positions of the inner walls of the left and right sides of the cylinder body 5 and penetrate through. The left and right openings 30 correspond to the exhaust valve 31 and the air inlet valve 14, respectively.

[0034] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. Vertical reciprocating vacuum pump comprising a box (1), characterized in that: The top of the box (1) is fixedly connected with cylinder base (17) through bolt, the top of cylinder base (17) is fixedly connected with cylinder (5), the lower end of cylinder (5) is connected with piston (33) through and sliding, the top of piston (33) is provided with water collecting groove (32) and water collecting groove (32) is through piston (33), the bottom of piston (33) is connected with hollow tube (21) through and sliding and the upper end of hollow tube (21) is connected with water collecting groove (32) correspondingly, the bottom of hollow tube (21) is fixedly connected with connecting rod mounting seat (22), the lower side of connecting rod mounting seat (22) is rotatably connected with connecting rod (23), the front lower end of connecting rod (23) is fixedly connected with connecting shaft (24), the inner bottom of box (1) is fixedly connected with pulley mounting bracket (10), the upper part of pulley mounting bracket (10) is rotatably connected with limiting shaft (26) through, the rear end of limiting shaft (26) is fixedly connected with second pulley (11) and connecting shaft (24) is rotatably connected with second pulley (11) through, the right lower end of hollow tube (21) is fixedly connected with drain hose (19) through, the right end of drain hose (19) is fixedly connected with electromagnetic valve (18) and electromagnetic valve (18) is fixedly connected with the right inner wall of box (1), the bottom of box (1) is fixedly connected with mounting base (12), the lower part of the right outer wall of box (1) is fixedly connected with protective cover (8), the top right of mounting base (12) is fixedly connected with motor (6) and the output end of motor (6) is through protective cover (8), the middle part of the left and right outer walls of cylinder (5) is fixedly connected with flange joint connecting pipe (16), the upper side of flange joint connecting pipe (16) is fixedly connected with connecting pipe (15) through.

2. The vertical reciprocating vacuum pump according to claim 1, characterized in that: The top of the cylinder (5) is fixedly connected with the flange plate (3) through the bolt, and the first sealing ring (4) is arranged between the cylinder (5) and the flange plate (3).

3. The vertical reciprocating vacuum pump of claim 1, wherein: The annular sealing pad (27) is arranged between the top of the hollow tube (21) and the piston (33) and located inside the piston (33), and the second sealing ring (34) is fixedly connected with the upper and lower side walls of the piston (33) and slidably connected with the cylinder (5).

4. The vertical reciprocating vacuum pump of claim 1, wherein: The hollow tube locking block (28) is fixedly connected with the middle part of the bottom of the water collecting groove (32) through the bolt, and the hollow tube (21) penetrates the hollow tube locking block (28), and the second annular limiting block (29) is arranged between the piston (33) and the hollow tube locking block (28), and the hollow tube (21) penetrates and is fixedly connected with the second annular limiting block (29).

5. The vertical reciprocating vacuum pump of claim 1, wherein: The reinforced limiting plate (20) is fixedly connected with the middle part of the bottom of the cylinder base (17) and penetrates the reinforced limiting plate (20), and the hollow tube (21) penetrates the box (1), the first annular limiting block (25) is arranged on the upper part of the front and rear inner side walls of the pulley mounting bracket (10), and the limiting shaft (26) penetrates and is fixedly connected with the first annular limiting block (25).

6. The vertical reciprocating vacuum pump of claim 1, wherein: The lower left part of the box (1) is provided with an inspection cover (2), the right end of the electromagnetic valve (18) is fixedly connected with a water outlet pipe (13) which penetrates and is fixedly connected with the box (1).

7. The vertical reciprocating vacuum pump of claim 1, wherein: The right part of the inside of the protective cover (8) is provided with a first pulley (7) which is fixedly connected with the output end of the motor (6), and the second pulley (11) and the first pulley (7) are provided with a belt (9) therebetween.

8. The vertical reciprocating vacuum pump of claim 1, wherein: The upper end of the left connecting pipe (15) is fixedly connected with an exhaust valve (31) which penetrates and is fixedly connected with the cylinder body (5) at the other end, the upper end of the right connecting pipe (15) is fixedly connected with an air suction valve (14) which penetrates and is fixedly connected with the cylinder body (5) at the other end, and the left and right inner walls of the cylinder body (5) are both provided with an opening (30) at the upper part which penetrates and corresponds to the exhaust valve (31) and the air suction valve (14) respectively.

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