CN107420355B - Vacuum oil suction machine display cylinder - Google Patents
Vacuum oil suction machine display cylinder Download PDFInfo
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- CN107420355B CN107420355B CN201710756219.8A CN201710756219A CN107420355B CN 107420355 B CN107420355 B CN 107420355B CN 201710756219 A CN201710756219 A CN 201710756219A CN 107420355 B CN107420355 B CN 107420355B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/24—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing liquids, e.g. containing solids, or liquids and elastic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/14—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
- F16K11/16—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane
- F16K11/161—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane only slides
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention relates to a vacuum oil extractor display cylinder, the lower end of the observation cylinder is provided with a lower valve body mechanism connected with a connecting pipe, the upper and lower parts in a valve body connecting seat in the lower valve body mechanism are respectively provided with a cavity, the upper and lower cavities are separated by a valve sleeve, the lower end surface of the valve sleeve is connected with a spring arranged in the lower cavity, a valve port communicated with the outer channels of the two cavities is arranged between the lower end of the valve sleeve and the valve body connecting seat, a valve core is arranged between the valve core and the valve sleeve, a valve port isolating the upper inner channels of the upper and lower cavities and a valve port communicating a vent pipe with the lower inner channels of the lower cavities are arranged between the valve core and the valve sleeve, a ball valve assembly is arranged on a mounting seat of the lower valve body mechanism, a deflector rod of the ball valve assembly drives the valve core to move downwards along a middle through hole of the valve sleeve, the valve core is driven by a deflector rod of the ball valve assembly to move upwards along a middle through hole, and the valve port of the lower inner channels and the valve port of the outer channels are sequentially closed.
Description
Technical Field
The invention relates to a vacuum oil absorber for automobile repair and maintenance, in particular to a vacuum oil absorber display cylinder which adopts venturi vacuum pumping and has the functions of vacuum storage and oil absorption display, and belongs to the technical field of vacuum oil absorption display.
Background
The existing vacuum oil extractor display cylinder mainly has two structures, one is of a single-rod rotary pressing type, the left and right rotation and the communication operation of the vent holes on the torsion bar and the observation cylinder are all required to be carried out according to a specified program, the operation is complex, and once the operation is not carried out according to the operation program or the misoperation, the conditions of vacuum pumping failure, no oil discharge and the like can be generated, so that the normal operation of the vacuum oil extractor display cylinder is directly influenced. The other is a compression bar, as in patent publication No. CN103362876A, a vacuum cooker hood display cylinder is disclosed, as shown in figure 1, which mainly comprises an observation cylinder A-1, a guide seat A-2, a lock cylinder A-9, a torsion tube A-6, a locking throat A-8, a disc A-7, a handle, a conical spring A-10, a compression bar device and a unidirectional conduction device. The pressure lever device adopts a shifting fork pressure lever mechanism, a pressure lever in the shifting fork pressure lever mechanism is in positioning connection with three positioning holes on the front side surface of the handle connecting seat through a positioning pin shaft on a shifting fork, the communication between a vent hole on a torsion bar and an observation cylinder is realized, and a lock cylinder is opened for discharging oil and the observation cylinder is independently connected with an oil storage tank. The fork pulling compression bar mechanism is a complex locking mechanism, the observation barrel is integral, and two aluminum covers with different structures are needed to be fixed up and down, so that the problems of complex structure, high manufacturing cost and the like are caused. Therefore, a display cylinder with a novel structure capable of replacing the display cylinder of the compression rod type vacuum oil absorber is needed to be designed, and the display cylinder is used for solving the problems that the operation of the display cylinder of the existing compression rod type vacuum oil absorber is convenient, but the structure is complex and the cost is high.
Disclosure of Invention
The invention aims to provide a display cylinder of a vacuum oil extractor, which is used for solving the technical problems of complex structure, high cost and the like of the existing display cylinder of the vacuum oil extractor.
The invention adopts the technical scheme that the vacuum extractor comprises a vacuum generator, an observation cylinder, a vent pipe and a connecting pipe, wherein the vacuum generator is arranged at the top of the observation cylinder, the upper end and the lower end of the observation cylinder are communicated through the connecting pipe, the lower end of the observation cylinder is provided with a lower valve body mechanism connected with the connecting pipe, the upper part and the lower part in a valve body connecting seat in the lower valve body mechanism are respectively provided with a cavity, the upper cavity is communicated with the observation cylinder, the lower cavity is communicated with an oil storage barrel, the upper cavity and the lower cavity are separated by a valve sleeve, the lower end surface of the valve sleeve is connected with a spring arranged in the lower cavity, a valve port communicated with an outer channel of the two cavities is arranged between the lower end of the valve sleeve and the valve body connecting seat, a valve core is arranged in the middle of the valve sleeve and is connected with the lower end of the vent pipe arranged in the connecting pipe, the upper end of the vent pipe is positioned in the upper end of the connecting pipe and is communicated with the upper part of the observation cylinder, a valve port isolating an upper inner channel of an upper cavity and a lower inner channel of the lower cavity and a valve port communicating the vent pipe with the lower inner channel of the lower cavity are arranged between the valve core and the valve sleeve, a T-shaped step shaft is arranged on the upper part of the valve core, the T-shaped step shaft is connected with a deflector rod of the ball valve assembly through a poking hole on the side surface of the T-shaped step shaft, the ball valve assembly is arranged on a mounting seat of the lower valve body mechanism, the deflector rod of the ball valve assembly drives the valve core to move downwards along a middle through hole of the valve sleeve, the opening of the valve port of the lower inner channel and the opening of the valve port of the outer channel are sequentially realized, and the deflector rod of the ball valve assembly drives the valve core to move upwards along the middle through hole of the valve sleeve, so that the valve port of the lower inner channel and the valve port of the outer channel are sequentially realized.
O-shaped sealing rings for sealing the valve ports of the upper and lower inner channels are respectively arranged at the valve ports of the upper and lower inner channels of the valve core; the valve sleeve is provided with an O-shaped sealing ring for sealing the valve port of the outer channel at the valve port of the outer channel.
When no external force or external force for moving the valve sleeve downwards is smaller than the spring force acting on the lower end face of the movable valve sleeve in the cavity at the lower part of the valve body connecting seat, the valve port of the outer channel between the valve sleeve and the valve body connecting seat is closed under the action of the spring force.
The ball valve assembly comprises a ball hinge nut, a sealing gasket, a handle ball, a ball body and a deflector rod, wherein one end of the deflector rod penetrates through the ball body and then is inserted into a poking hole of a T-shaped step shaft of the valve core, the handle ball is arranged at the other end of the deflector rod, and the ball body is in rotary sealing connection with a mounting seat of the lower valve body mechanism through the sealing gasket.
The side of the lower valve body mechanism is also provided with a limiting plate for limiting the deflector rod, the limiting plate is provided with a deflector rod straight groove, and the upper end, the middle and the lower end of the deflector rod straight groove are respectively provided with a gear limiting groove.
When the deflector rod is positioned in the gear limiting groove at the lower end of the limiting plate, the valve port of the upper inner channel between the valve core and the valve sleeve is closed, and the valve port of the lower inner channel is closed, so that the upper cavity and the lower cavity are isolated.
When the deflector rod is positioned in the gear limiting groove in the middle of the limiting plate, the valve port of the lower inner channel between the valve core and the valve sleeve is opened, and the upper space of the observation cylinder is communicated with the lower cavity and the oil storage barrel through the vent pipe, the middle blind hole of the valve core, the vent hole on the side wall, the concave ring groove and the valve port of the lower inner channel.
When the deflector rod is positioned in a gear limiting groove at the upper part of the limiting plate, a valve port of an inner channel at the lower part between the valve core and the valve sleeve is opened; the upper space of the observation cylinder is communicated with the lower cavity and the oil storage barrel through the vent pipe, the middle blind hole of the valve core, the vent hole on the side wall, the concave ring groove and the valve port of the lower inner channel; the valve port of the outer channel between the valve sleeve and the valve body connecting seat is opened, so that the upper cavity and the lower cavity are communicated, and the liquid in the observation cylinder is placed into the oil storage barrel through the valve port of the outer channel.
The valve core and the valve sleeve are formed by injection molding, and the vent pipe is a plastic vent pipe.
The vacuum generator is a vacuum generating device integrating vacuumizing, negative pressure displaying and oil suction; the observation tube consists of a transparent tube, a lock nut and a connecting tube, wherein the transparent tube is formed by oppositely buckling two half-tube bodies which are the same in upper and lower parts and are assembled through the lock nut and the connecting tube, and the two half-tube bodies are connected together in a sealing way through an O-shaped sealing ring; the lock nut at the lower end of the observation cylinder is integrated with the lower valve body connecting seat; the vacuum generator seat of the vacuum generator is fixedly and hermetically connected with the locking nut at the top of the observation cylinder through an O-shaped sealing ring and a screw, or an internal thread is arranged in the vacuum generator seat and is fixedly connected with the upper end of the connecting pipe in the observation cylinder through the internal thread.
The beneficial effects of the invention are as follows:
the invention is improved based on the principle of the operating mechanism of the display cylinder of the existing compression bar type vacuum oil absorber, and the operating mechanism is moved from the upper part to the lower part for operation. Meanwhile, the characteristic of convenient operation of the display cylinder of the existing compression bar type vacuum oil absorber is maintained, but the problem of complex structure and high cost of the display cylinder of the existing compression bar type vacuum oil absorber is solved. And the valve seat of the original operating mechanism and the valve sleeve of the lower connecting valve are integrated into one part.
The invention divides the observation cylinder into two half cylinders which are the same up and down and are assembled by the lock nut and the connecting pipe, can cancel two different parts of the upper and lower aluminum covers of the existing compression bar type vacuum oil absorber, achieves generalization, reduces the total number of the types of the parts, and can keep the modularization advantage of the small components of the display cylinder.
The vent pipe in the middle of the existing compression bar type vacuum oil absorber is a metal pipe, and the upper and lower stress effect is transmitted when the vent pipe is ventilated.
The lower valve body mechanism adopts the limiting plate, and a complex locking mechanism of a fork handle of the conventional compression bar type vacuum oil absorber is omitted.
Drawings
FIG. 1 is a sectional view of a display cylinder of a conventional compression rod type vacuum oil absorber;
FIG. 2 is a sectional view showing the structure of a cylinder of the vacuum extractor of the present invention;
FIG. 3 is a cross-sectional view of the lower valve body mechanism of the present invention;
FIG. 4 is a schematic view of three valve port states when a lever in the lower valve body mechanism is in a lower limit groove;
FIG. 5 is a schematic view of three valve port states when a lever in the lower valve body mechanism is in the middle limit groove;
FIG. 6 is a schematic view of three valve port states when a lever in the lower valve body mechanism is in an upper limit groove;
FIG. 7 is a schematic perspective view of the limiting plate structure;
FIG. 8 is a schematic diagram of two perspective views of the limiting plate structure;
FIG. 9 is a cross-sectional view of the observation barrel construction;
FIG. 10 is a front view, partially in section, of the vacuum generator configuration;
FIG. 11 is a partial cross-sectional top view of the vacuum generator structure;
FIG. 12 is a schematic perspective view of the valve core structure;
fig. 13 is a schematic perspective view of the valve housing structure.
Detailed Description
The invention will be further described with reference to the drawings and examples.
As shown in FIG. 2, the vacuum extractor hood display cylinder of the present invention comprises a vacuum generator 1, an observation cylinder 5, a lower valve body mechanism 6, a vent pipe 7, a connecting pipe 5-3, etc. The vent pipe 7 is a plastic vent pipe. The vacuum generator 1 is arranged at the top of the observation tube 5, and the vacuum generator 1 is fixedly and hermetically connected with a locking nut at the top of the observation tube 5 through an O-shaped sealing ring and a screw. The middle of the observation tube 5 is connected with a connecting tube 5-3, the connecting tube 5-3 is provided with a vent tube 7, the upper end of the vent tube 7 is positioned in the upper end of the connecting tube 5-3 and is communicated with the upper part of the observation tube 5, and the lower end of the connecting tube 5-3 is connected with a lower valve body mechanism 6.
As shown in FIG. 3, the lower valve body mechanism 6 comprises a valve body connecting seat 6-1, a valve core 6-2, a valve sleeve 6-3, a ball valve assembly 6-4, a ball hinge nut 6-5, a sealing gasket 6-6, a spring 6-7, a one-way internal screw flange 6-8, a hole clamp spring 6-9, a first O-shaped sealing ring 6-10, a second O-shaped sealing ring 6-11, a third O-shaped sealing ring 6-12, a steel wire retainer ring 6-13 and a limiting plate 6-14. The valve core 6-2 and the valve sleeve 6-3 are formed by injection molding.
The upper and lower parts in the valve body connecting seat 6-1 are respectively provided with a cavity, and the side surface is provided with a mounting seat of the ball valve assembly 6-4. The upper cavity is communicated with the observation cylinder 5 through a connecting pipe 5-3, and the lower cavity is communicated with the oil storage cylinder. The upper cavity and the lower cavity are separated by a valve sleeve 6-3, the lower end surface of the valve sleeve 6-3 is connected with a spring 6-7 arranged in the lower cavity, one end of the spring 6-7 is propped against a step surface at the lower end of the valve sleeve 6-3, and the other end is propped against a hole clamp spring 6-9 of the lower cavity. As shown in FIG. 13, the valve sleeve 6-3 has several guide posts 6-3-1 on the upper part, a drainage area is formed between the guide posts 6-3-1, a through hole 6-3-2 is formed in the middle, a sealing groove 6-3-3 is arranged on the lower cylinder, a second O-shaped sealing ring 6-11 is arranged in the sealing groove 6-3-3, and a valve port at the outer channel C is formed between the second O-shaped sealing ring 6-11 of the valve sleeve 6-3 and the top step hole of the lower cavity. When no external force or external force of the valve sleeve 6-3 moving downwards is smaller than the force of the spring 6-7 acting on the lower end face of the valve sleeve 6-3 in the cavity at the lower part of the valve body connecting seat 6-1, the valve sleeve 6-3 enters the top step hole of the lower cavity by the action of the spring 6-7, so that the valve port at the outer channel C is closed. A valve core 6-2 is arranged in the middle of the valve sleeve 6-3. As shown in FIG. 12, the valve core 6-2 has a T-shaped stepped shaft at the upper part, an upper sealing groove 6-2-3 is arranged on the core column at the lower part, a third O-shaped sealing ring 6-12 is respectively arranged on the upper sealing groove 6-2-3 and the lower sealing groove 6-3, a concave ring groove is arranged on the core column between the upper sealing groove 6-2-3 and the lower sealing groove 6-3, a vent hole 6-2-4 is arranged on the concave ring groove, the vent hole 6-2-4 is communicated with a blind hole 6-2-5 in the middle of the valve core 6-2, and the blind hole 6-2-5 in the middle of the valve core 6-2 is connected with the lower end of a vent pipe 7. The valve core 6-2 is matched with a through hole in the middle of the valve sleeve 6-3 through a third O-shaped sealing ring 6-12 in the upper sealing groove to form a valve port at the position of an upper inner channel A isolating the upper cavity and the lower cavity, and the valve core 6-2 is matched with the lower end of the through hole of the valve sleeve 6-3 through the third O-shaped sealing ring 6-12 in the lower sealing groove to form a valve port at the position of a lower inner channel B communicating the vent pipe 7 with the lower cavity. The side of the T-shaped step shaft is provided with a poking hole, and the ball valve assembly 6-4 is arranged on the mounting seat of the lower valve body mechanism 6. The ball valve assembly 6-4 comprises a ball hinge nut 6-5, a sealing gasket 6-6, a handle ball 6-15, a ball body 6-16 and a deflector rod 6-17. One end of the deflector rod 6-17 passes through the sphere 6-16 and then is inserted into a poking hole of a T-shaped step shaft of the valve core 6-2, the other end of the deflector rod is provided with a handle ball 6-15, and the sphere 6-16 is in rotary sealing connection with an installation seat of the lower valve body mechanism 6 through a sealing gasket 6-6 and a spherical hinge nut 6-5. The valve core 6-2 is driven by the deflector rod 6-17 of the ball valve assembly 6-4 to move downwards along the middle through hole of the valve sleeve 6-3, so that the valve port at the lower inner channel B and the valve port at the outer channel C are sequentially opened, and the valve core 6-2 is driven by the deflector rod 6-17 of the ball valve assembly 6-4 to move upwards along the middle through hole of the valve sleeve 6-3, so that the valve port at the lower inner channel B and the valve port at the outer channel C are sequentially closed.
The side surface of the lower valve body mechanism 6 is also provided with a limiting plate 6-14 for limiting the deflector rod 6-17. As shown in figures 7 and 8, the limit plate 6-14 is provided with a shift lever straight groove 6-14-1, and the upper end, the middle and the lower end of the shift lever straight groove 6-14-1 are respectively provided with a gear limit groove 6-14-2. The gear limiting groove at the upper end is in a No. 3 position (liquid and gas passing position), the gear limiting groove in the middle is in a No. 2 position (gas passing and liquid closing position), and the gear limiting groove at the lower end is in a No. 1 position (liquid and gas closing position). As shown in fig. 8, the limiting plate is not fixed at the spherical hinge seat, but sleeved on the valve seat, and the installation direction is perpendicular to the original scheme. In addition, the metal plate flanging is adopted, so that the method is relatively simple.
As shown in fig. 3, when the deflector rod 6-17 is deflected into the number 1 position, the deflector rod 6-17 drives the valve core 6-2 to move upwards along the through hole in the middle of the valve sleeve 6-3, so that the valve port at the upper inner channel a and the valve port at the lower inner channel B are closed, and the valve port at the outer channel C is also closed under the action of the spring 6-7, namely, both channels at the inner position are not communicated, thereby isolating liquid and gas in the observation cylinder 5 from liquid and gas in the oil storage barrel and being used for vacuumizing and absorbing oil in the observation cylinder 1.
As shown in fig. 4, the deflector rod 6-17 is pulled up to move the valve core 6-2 downwards, but when the valve sleeve 6-3 is still motionless under the action of the spring 6-7, the valve port at the lower inner channel B between the valve core 6-2 and the valve sleeve 6-3 is opened. At this time, the deflector rods 6-17 enter the number 2, the valve port at the upper inner channel A and the valve port at the outer channel C are both in a closed state, and liquid cannot flow from the outer channel to the lower cavity; the valve port at the lower inner channel B is opened, so that the upper space of the observation cylinder 5 enters the oil storage barrel through the vent pipe 7, the middle vent hole of the valve core 6-2, the vent hole on the side wall, the concave ring groove and the valve port at the lower inner channel B. That is, the air pressure in the upper part of the observation cylinder 5 is equal to the air pressure of the oil storage barrel, and the liquid in the observation cylinder 5 cannot enter the liquid oil storage barrel, so that the observation cylinder 5 and the oil storage barrel can be simultaneously vacuumized or simultaneously communicated with the air pressure, and the liquid in the observation cylinder 5 is conveniently placed in the oil storage barrel.
As shown in fig. 5, the deflector rod 6-17 is continuously upwards dialed, the spherical hinge rotates, the other end of the deflector rod dials the valve core 6-2, the T-shaped step of the valve core props against the lower end surface of the valve sleeve 6-3 to drive the valve sleeve 6-3 to downwards move together against the force of the spring 6-7, and the deflector rod 6-17 enters the No. 1 position. At this time, the valve port at the lower inner channel B continues to be protected in an open state, the valve port at the outer channel C is opened, the valve port at the upper inner channel A is always in a closing and guiding function, the upper space of the observation cylinder 5 enters the oil storage barrel through the vent pipe 7, the middle vent hole of the valve core 6-2, the vent hole on the side wall, the concave ring groove and the valve port at the lower inner channel B, so that the air pressure of the observation cylinder 5 is equal to the air pressure of the oil storage barrel, and the liquid in the observation cylinder 5 is placed into the oil storage barrel through the valve port at the outer channel C.
As shown in fig. 9, the observation tube 5 is composed of a transparent tube 5-1, a lock nut 5-2, and a connection tube 5-3. The transparent tube 5-1 is formed by relatively buckling two half-tube bodies which are the same in upper and lower parts and assembling the two half-tube bodies through a locking nut 5-2 and a connecting tube 5-3, an O-shaped sealing ring B5-5 is arranged between the two half-tube bodies, the connecting tube 5-3 penetrates through the middle of the transparent tube, the upper end and the lower end of the connecting tube 5-3 are respectively in threaded connection with the locking nut 5-2, an O-shaped sealing ring C5-4 is arranged between the locking nut 5-2 and the half-tube bodies, and the two half-tube bodies are connected together in a sealing mode through screwing the two locking nuts 5-2, so that the integral observation tube 5 is formed. The upper and lower parts of the observation tube 5 are communicated through the through holes on the side surfaces of the upper and lower ends of the connecting tube 5-3.
As shown in fig. 10 and 11, the vacuum generator 1 is a vacuum generating device integrating vacuumizing, negative pressure displaying and oil suction. The device comprises a quick connector 1-1, a ball valve 1-2, a nozzle 1-3, a vacuum gauge 1-4, a three-way connector 1-5, a right-angle elbow connector 1-6, a silencer 1-7, a vacuum generator seat 1-8, an O-shaped ring D1-9, a screw 1-10, a steel ball 1-11, an O-shaped ring E1-12 and a one-way valve sleeve 1-13. The vacuum generator seat 1-8 is provided with a nozzle 1-3 and a silencer 1-7 to form a vacuum venturi tube, and is connected with a one-way valve consisting of a one-way valve sleeve 1-13, a steel ball 1-11 and an O-shaped ring E1-12. The vacuum generator seat 1-8 is connected with the vacuum meter 1-4 and the right-angle elbow joint 1-6 through the three-way joint 1-5, and the right-angle elbow joint 1-6 is connected with the oil suction pipe.
If the modularization is not considered, the upper locking nut 5-2 can be removed, the bottom of the connecting vacuum generator seat 1-8 is made into an internal thread, and the connecting vacuum generator seat is connected with the connecting pipe 5-3 at the upper end of the observation tube 5 in a straight-pull manner through the internal thread. The lower lock nut 5-2 and the lower valve body connecting seat 6-1 are integrated, and the same effect can be achieved by respectively matching with an O-shaped sealing ring, and the overall price can be cheaper.
Claims (10)
1. The utility model provides a vacuum extractor display tube, includes vacuum generator (1), observation section of thick bamboo (5), breather pipe (7), connecting pipe (5-3), vacuum generator (1) are installed at observation section of thick bamboo (5) top, through connecting pipe (5-3) intercommunication, its characterized in that between the upper and lower ends of observation section of thick bamboo (5): the lower end of the observation cylinder (5) is provided with a lower valve body mechanism (6) connected with a connecting pipe (5-3), the upper part and the lower part in a valve body connecting seat (6-1) in the lower valve body mechanism (6) are respectively provided with a cavity, the upper cavity is communicated with the observation cylinder (5), the lower cavity is communicated with an oil storage barrel, the upper cavity and the lower cavity are separated by a valve sleeve (6-3), the lower end surface of the valve sleeve (6-3) is connected with a spring (6-7) arranged in the lower cavity, a valve port communicated with an outer channel of the two cavities is arranged between the lower end of the valve sleeve (6-3) and the valve body connecting seat (6-1), the valve sleeve (6-3) is provided with a valve core (6-2) in the middle, the valve core (6-2) is connected with the lower end of a vent pipe (7) arranged in the connecting pipe (5-3), the upper end of the vent pipe (7) is positioned in the upper end of the connecting pipe (5-3) and is communicated with the upper part of the observation cylinder (5), a valve port for isolating an upper inner channel of an upper cavity and a lower cavity and a valve port for communicating the vent pipe (7) with a lower inner channel of the lower cavity are arranged between the valve core (6-2) and the valve sleeve (6-3), the upper part of the valve core (6-2) is provided with a T-shaped step shaft, the T-shaped step shaft is connected with a deflector rod (6-17) of the ball valve assembly (6-4) through a stirring hole on the side surface of the T-shaped step shaft, the ball valve assembly (6-4) is arranged on a mounting seat of the lower valve body mechanism (6), the valve core (6-2) is driven by a deflector rod of the ball valve assembly (6-4) to move downwards along the middle through hole of the valve sleeve (6-3), the opening of the valve port of the lower inner channel and the valve port of the outer channel are sequentially realized, and the deflector rod of the ball valve assembly (6-4) drives the valve core (6-2) to move upwards along the middle through hole of the valve sleeve (6-3), so that the closing of the valve port of the lower inner channel and the valve port of the outer channel is sequentially realized.
2. The vacuum extractor hood display cartridge of claim 1, wherein: the valve core (6-2) is provided with O-shaped sealing rings for sealing the valve ports of the upper and lower inner channels at the valve ports of the upper and lower inner channels respectively; the valve sleeve (6-3) is provided with an O-shaped sealing ring for sealing the valve port of the outer channel at the valve port of the outer channel.
3. The vacuum extractor hood display cartridge of claim 1, wherein: when no external force or external force for moving the valve sleeve (6-3) downwards is smaller than the force of a spring (6-7) acting on the lower end face of the valve sleeve (6-3) in a cavity at the lower part of the valve body connecting seat (6-1), the valve opening of an outer channel between the valve sleeve (6-3) and the valve body connecting seat (6-1) is closed under the action of the force of the spring (6-7) by the valve sleeve (6-3).
4. The vacuum extractor hood display cartridge of claim 1, wherein: the ball valve assembly (6-4) comprises a ball hinge nut (6-5), a sealing gasket (6-6), a handle ball (6-15), a ball body (6-16) and a deflector rod (6-17), one end of the deflector rod (6-17) penetrates through the ball body (6-16) and then is inserted into a poking hole of a T-shaped step shaft of the valve core (6-2), the handle ball (6-15) is arranged at the other end of the deflector rod, and the ball body (6-16) is in rotary sealing connection with an installation seat of the lower valve body mechanism (6) through the sealing gasket (6-6) and the ball hinge nut (6-5).
5. The vacuum extractor hood display cartridge of claim 4 wherein: the side of the lower valve body mechanism (6) is also provided with a limiting plate (6-14) for limiting the deflector rod (6-17), the limiting plate (6-14) is provided with a deflector rod straight groove, and the upper end, the middle and the lower end of the deflector rod straight groove are respectively provided with a gear limiting groove.
6. The vacuum extractor hood display cartridge of claim 5 wherein: when the deflector rod (6-17) is positioned in the gear limiting groove at the lower end of the limiting plate (6-14), the valve port of the upper inner channel between the valve core (6-2) and the valve sleeve (6-3) is closed, and the valve port of the lower inner channel is closed, so that the upper cavity and the lower cavity are isolated.
7. The vacuum extractor hood display cartridge of claim 5 wherein: when the deflector rod (6-17) is positioned in the gear limiting groove in the middle of the limiting plate (6-14), a valve port of a lower inner channel between the valve core (6-2) and the valve sleeve (6-3) is opened, and the upper space of the observation cylinder (5) is communicated with the lower cavity and the oil storage barrel through the vent pipe (7), a blind hole in the middle of the valve core (6-2), a vent hole on the side wall, the concave ring groove and the valve port of the lower inner channel.
8. The vacuum extractor hood display cartridge of claim 5 wherein: when the deflector rod (6-17) is positioned in a gear limiting groove at the upper part of the limiting plate (6-14), a valve port of a lower inner channel between the valve core (6-2) and the valve sleeve (6-3) is opened; the upper space of the observation cylinder (5) is communicated with the lower cavity and the oil storage barrel through the vent pipe (7), the middle blind hole of the valve core (6-2), the vent hole on the side wall, the concave ring groove and the valve port of the lower inner channel; the valve port of the outer channel between the valve sleeve (6-3) and the valve body connecting seat (6-1) is opened, so that the upper cavity and the lower cavity are communicated, and the liquid in the observation cylinder (5) is placed into the oil storage barrel through the valve port of the outer channel.
9. The vacuum extractor hood display cartridge of any of claims 1-8, wherein: the valve core (6-2) and the valve sleeve (6-3) are formed by injection molding; the vent pipe (7) is a plastic vent pipe.
10. The vacuum extractor hood display cartridge of any of claims 1-8, wherein: the vacuum generator (1) is a vacuum generating device integrating vacuumizing, negative pressure displaying and oil absorption, the observation cylinder (5) consists of a transparent cylinder (5-1), a locking nut (5-2) and a connecting pipe (5-3), the transparent cylinder (5-1) is formed by buckling two half cylinders which are the same up and down in a relative manner, and the two half cylinders are assembled through the locking nut (5-2) and the connecting pipe (5-3) and are connected together in a sealing way through an O-shaped sealing ring; the lock nut (5-2) at the lower end of the observation barrel (5) is integrated with the valve body connecting seat (6-1); the vacuum generator seat (1-8) of the vacuum generator (1) is fixedly and hermetically connected with the lock nut (5-2) at the top of the observation cylinder (5) through an O-shaped sealing ring and a screw, or an internal thread is arranged in the vacuum generator seat (1-8) and is fixedly connected with the upper end of the connecting pipe (5-3) in the observation cylinder (5) through the internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710756219.8A CN107420355B (en) | 2017-08-29 | 2017-08-29 | Vacuum oil suction machine display cylinder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710756219.8A CN107420355B (en) | 2017-08-29 | 2017-08-29 | Vacuum oil suction machine display cylinder |
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| CN107420355A CN107420355A (en) | 2017-12-01 |
| CN107420355B true CN107420355B (en) | 2023-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710756219.8A Active CN107420355B (en) | 2017-08-29 | 2017-08-29 | Vacuum oil suction machine display cylinder |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108071827B (en) * | 2017-12-04 | 2024-07-12 | 广州巴兰仕机械有限公司 | Vacuum and explosion-proof integrated mechanism |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191312799A (en) * | 1913-06-02 | 1914-01-15 | Harold Wade | Improvements in or relating to Valve Devices. |
| JP3013478B2 (en) * | 1991-03-26 | 2000-02-28 | 株式会社タツノ・メカトロニクス | Oil extraction device |
| TWM289733U (en) * | 2005-11-14 | 2006-04-21 | Yung Yan Shin Entpr Co Ltd | Improved oil changing facilities |
| CN2876722Y (en) * | 2006-03-20 | 2007-03-07 | 张绍誉 | Vacuum transparent counting cup for pneumatic oil pump |
| CN201714722U (en) * | 2010-02-02 | 2011-01-19 | 江木霖 | No-resistance evacuation storage suction negative pressure device |
| WO2014076314A2 (en) * | 2012-11-19 | 2014-05-22 | Castrol Limited | Apparatus and method |
| KR101303749B1 (en) * | 2013-05-29 | 2013-10-08 | (주)브이텍 | Quick-release valve and vacuum pump device with the same |
| US20170240144A1 (en) * | 2016-02-24 | 2017-08-24 | Cosda Manufacturing Company | Device for changing brake oil |
| CN207363975U (en) * | 2017-08-29 | 2018-05-15 | 士商（湖州）精密技术有限公司 | Vacuum oil extracting machine display barrel |
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