CN114704448A - Automobile emergency pump - Google Patents
Automobile emergency pump Download PDFInfo
- Publication number
- CN114704448A CN114704448A CN202210269196.9A CN202210269196A CN114704448A CN 114704448 A CN114704448 A CN 114704448A CN 202210269196 A CN202210269196 A CN 202210269196A CN 114704448 A CN114704448 A CN 114704448A
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- Prior art keywords
- channel
- horizontal medium
- medium channel
- plug
- upper horizontal
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- 230000002457 bidirectional effect Effects 0.000 claims abstract description 17
- 230000009975 flexible effect Effects 0.000 claims description 14
- 239000003921 oil Substances 0.000 description 33
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000346 nonvolatile oil Substances 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B3/00—Machines or pumps with pistons coacting within one cylinder, e.g. multi-stage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/061—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle provided with effort, steering lock, or end-of-stroke limiters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/062—Details, component parts
- B62D5/063—Pump driven by vehicle engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses an automobile emergency pump, which relates to a pump and comprises a pump body, wherein an oil outlet channel, an upper horizontal medium channel, a lower horizontal medium channel and an oil inlet channel are sequentially arranged in the pump body from top to bottom; two conical plugs are respectively arranged in two ends of the lower horizontal medium channel, and each conical plug is connected with the inner wall of the end part of the lower horizontal medium channel through a telescopic structure; the middle part of the lower horizontal medium channel is communicated with the oil inlet channel through the oil conveying channel, and the homonymous ends of the upper horizontal medium channel and the lower horizontal medium channel are respectively communicated through a lower communicating channel; the middle part of one of the two lower communication channels is connected with one end of the bidirectional hydraulic pump, and the other lower communication channel is connected with the other end of the bidirectional hydraulic pump; the invention can effectively realize the purpose of one standby and one use, and improves the stability of the equipment.
Description
Technical Field
The invention relates to a pump, in particular to an emergency pump.
Background
The hydraulic power-assisted steering is a hydraulic system or a component part commonly used for steering automobiles and engineering machinery. The working principle is that a part of engine power is converted into hydraulic energy through driving a hydraulic steering pump to push a steering gear to move or rotate, so that auxiliary acting force is applied to a steering system, and the tire is steered. In this system, if the steering oil pump is damaged, the system loses hydraulic assist power, and steering is very heavy or difficult, even resulting in an accident.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an automobile emergency pump to solve the technical problem that a steering oil pump in the prior art is unreliable to a certain extent.
The invention is realized by the following technical scheme:
an automobile emergency pump comprises a pump body, wherein an oil outlet channel, an upper horizontal medium channel, a lower horizontal medium channel and an oil inlet channel are sequentially arranged in the pump body from top to bottom, one end of the oil outlet channel penetrates through the pump body, the upper horizontal medium channel is specifically an axial horizontal cylindrical cavity, two ends of the upper horizontal medium channel are respectively connected with an upper communicating channel, one end of the upper communicating channel is communicated with the oil outlet channel, a cylindrical plug with the same outer diameter as the inner diameter of the upper horizontal medium channel is arranged in the upper horizontal medium channel, when one end of the cylindrical plug is in contact with the inner wall of the end part of the upper horizontal medium channel on the same side as the upper horizontal medium channel, the upper communicating channel adjacent to the end of the upper horizontal medium channel and the joint of the upper horizontal medium channel can be sealed, and at the moment, the other upper communicating channel is still communicated with the upper horizontal medium channel; the lower horizontal medium channel is a horizontal dumbbell-shaped cavity with two short, thick and thin middle parts, two conical plugs capable of plugging two ends of the middle part of the lower horizontal medium channel are respectively arranged in two ends of the lower horizontal medium channel, the tip end of each conical plug faces to the middle part of the lower horizontal medium channel, the end part deviating from the lower horizontal medium channel is connected with the inner wall of the end part of the lower horizontal medium channel through a telescopic structure, and each conical plug tightly pushes against the inner wall of the end part of the lower horizontal medium channel under the action of the corresponding telescopic structure and seals the end part close to the conical plug in the two ends of the middle part of the lower horizontal medium channel; the middle part of the lower horizontal medium channel is communicated with the oil inlet channel through an oil conveying channel, the homonymous ends of the upper horizontal medium channel and the lower horizontal medium channel are communicated through a lower communicating channel respectively, and two connecting parts of the two lower communicating channels and the upper horizontal medium channel are positioned at the outer sides of two connecting parts of the two upper communicating channels and the upper horizontal medium channel which form a whole; the middle part of one of the two lower communication channels is connected with one end of the bidirectional hydraulic pump, and the middle part of the other lower communication channel is connected with the other end of the bidirectional hydraulic pump.
Furthermore, both ends of the upper horizontal medium channel penetrate through the pump body, an upper threaded plug used for plugging the end is arranged on the outer side of each end, and the end part, facing the pump body, of each upper threaded plug is in threaded connection with the inner wall of the end part of the upper horizontal medium channel and the inner wall of the end part close to the upper horizontal medium channel.
Furthermore, the end part of the upper threaded plug facing the pump body is also provided with flexible cylindrical limiting bulges which are coaxially distributed with the upper threaded plug, one end of the cylindrical plug can be used for plugging the joint of an upper communicating channel and an upper horizontal medium channel which are adjacent to the end of the cylindrical plug when being contacted with the flexible cylindrical limiting bulges adjacent to the end of the cylindrical plug, the other upper communicating channel is still communicated with the upper horizontal medium channel, and the outer diameter of the flexible cylindrical limiting bulges is smaller than the outer diameter of the cylindrical plug.
Furthermore, the cylindrical plug is divided into two semi-cylindrical plugs from the middle part, and the two semi-cylindrical plugs are connected through a telescopic spring.
Furthermore, the outer edges of the two ends of the semi-cylindrical plug are both provided with annular conical surfaces.
Furthermore, both ends of the lower horizontal medium channel penetrate through the pump body, a lower threaded plug used for plugging the end is arranged on the outer side of each end, and the end part of each lower threaded plug is in threaded connection with the inner wall of the end part close to the lower horizontal medium channel.
Furthermore, the telescopic structure is a return spring with one end connected with the end of the corresponding lower thread plug and the other end connected with the corresponding conical plug.
Further, the constitution of extending structure is still including locating in corresponding reset spring and one end and corresponding toper stopper fixed connection's spigot, set up on the tip of the screw stopper orientation pump body down and supply with the pilot hole that corresponds the flexible activity of spigot, just the one end of spigot is established all the time in corresponding the pilot hole, evenly be equipped with the pressure relief groove around its axle on the pilot hole inner wall.
Compared with the prior art, the invention has the following advantages:
the automobile emergency pump is arranged on the gear box, and the rotation of the gear drives the bidirectional hydraulic pump to rotate when the automobile runs, so that hydraulic power is provided for the steering system in an auxiliary mode, and the steering system can achieve the steering function again. After the structure is installed, no matter the vehicle is in a forward state or a backward state (namely, the bidirectional hydraulic pump rotates clockwise or anticlockwise), oil inlet and oil outlet can be realized through the fixed oil port, and meanwhile, the purpose that one medium conveying channel in the pump is used for standby can be realized, so that the defect that a medium is provided by an independent channel in the pump in the prior art is overcome, and the stability of equipment is improved.
Drawings
Fig. 1 is a schematic structural diagram of an emergency pump for an automobile provided in embodiment 1.
In the figure: 1. a pump body; 2. an oil outlet channel; 3. an upper horizontal media channel; 4. a lower horizontal media channel; 5. an oil inlet channel; 6. an upper communicating channel; 7. a semi-cylindrical plug; 8. a conical plug; 9. a telescopic structure; 10. a lower communicating channel; 11. an oil delivery passage; 12. a bidirectional hydraulic pump; 13. screwing a threaded plug; 14. a flexible cylindrical limiting bulge; 15. a tension spring; 16. a lower threaded plug; 17. a guide pin; 18. and (4) a guide hole.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
With reference to fig. 1, in order to realize two-way oil supply of the pump to maintain the stability of the equipment, in this embodiment, an oil outlet channel 2, an upper horizontal medium channel 3, a lower horizontal medium channel 4 and an oil inlet channel 5 are sequentially arranged in the pump body 1 from top to bottom, wherein one end of the oil outlet channel penetrates through the body, and the other end of the oil inlet channel penetrates through the valve body; the lower horizontal medium channel 4 is a horizontal dumbbell-shaped cavity with two short ends and a thin middle part, the inner diameters of the two ends of the cavity are larger than the inner diameter of the middle part, meanwhile, for convenience of processing, the two ends of the cavity are symmetrically arranged around the middle part of the cavity, and for convenience of oil supply to the lower horizontal medium channel 4, in the embodiment, one end of the oil inlet channel 5 is communicated with one end of an oil conveying channel 11 arranged in the pump body 1 to be connected, the other end of the oil conveying channel 11 is communicated with the middle part of the lower horizontal medium channel 4, namely, a medium input through the oil inlet channel 5 can enter the lower horizontal medium channel 4 through the oil conveying channel 11 and flow to the two ends of the lower horizontal medium channel 4; secondly, in the present embodiment, the upper horizontal medium channel 3 is specifically a cylindrical cavity with a horizontal axial direction, and for convenience of processing, in the present embodiment, the upper horizontal medium channel 3 and the lower horizontal medium channel 4 are arranged in parallel, and the central points of the two are on the same straight line; meanwhile, the dotted ends of the upper horizontal medium channel 3 and the lower horizontal medium channel 4 are respectively connected by a lower communication channel 10 (shown by a dotted line in the figure), that is, the left end of the upper horizontal medium channel 3 and the right end of the lower horizontal medium channel 4 are arranged by the lower communication channel 10, and the right ends of the upper horizontal medium channel and the lower horizontal medium channel are arranged in the same way, and in the embodiment, the two lower communication channels 10 are symmetrically arranged around the center of the lower horizontal medium channel 4; in order to provide a medium into the oil outlet channel 2, in this embodiment, two ends of the upper horizontal medium channel 3 are respectively connected with the oil outlet channel 2 through an upper communication channel 6, that is, the left end of the upper horizontal medium channel 3 is connected with one end of the upper communication channel 6, the other end of the upper communication channel 6 is communicated with the oil outlet channel 2, the other upper communication channel 6 is connected in the same manner as above, and the two upper communication channels 6 are symmetrically arranged around the center of the upper horizontal medium channel 3 in this embodiment;
through the arrangement, a medium flow passage is formed in the pump body 1, namely, after entering through the oil inlet channel 5, the medium enters the middle part of the lower horizontal medium channel 4 through the oil conveying channel 11, then after diffusing towards two sides of the lower horizontal medium channel 4, the medium enters two ends of the upper horizontal medium channel 3 from two lower communicating channels 10 at two ends of the lower horizontal medium channel 4, and finally enters the oil outlet channel 2 through two upper communicating channels 6 to be discharged.
In order to achieve the purpose of one-for-one use of the pump, so that the equipment can stably operate, in the embodiment, firstly, two conical plugs 8 are respectively arranged in two ends of the lower horizontal medium channel 4, the tip of each conical plug 8 faces to the middle of the lower horizontal medium channel 4, and the end part deviating from the lower horizontal medium channel 4 is connected with the inner wall of the lower horizontal medium channel 4 and the adjacent end part thereof through a telescopic structure 9, each conical plug 8 can tightly push against and seal the end part close to the conical plug 8 in the two ends of the middle of the lower horizontal medium channel 4 under the action of the corresponding telescopic structure 9, secondly, the middle part of one of the two lower communication channels 10 is communicated with one end of a bidirectional hydraulic pump 12, and the middle part of the other lower communication channel 10 is communicated with the other end of the bidirectional hydraulic pump 12; wherein a bidirectional hydraulic pump 12 is arranged behind the pump body 1, shown in dashed lines.
With the above arrangement, after the bidirectional hydraulic pump 12 is started, positive pressure can be generated in one lower communication channel 10 and negative pressure can be generated in the other lower communication channel 10, so that one conical plug 8 can move away from the center of the lower horizontal medium channel 4 under the action of the negative pressure to open the end of the conical plug 8 corresponding to the middle of the lower horizontal medium channel 4, and the other conical plug 8 moves towards the center of the lower horizontal medium channel 4 to close the end of the conical plug corresponding to the middle of the lower horizontal medium channel 4.
Therefore, when the medium flows and the bidirectional hydraulic pump 12 works, the medium enters the lower horizontal medium channel 4 through the oil inlet channel 5 and the oil delivery channel 11 and then can only move towards one end of the lower horizontal medium channel, and when the bidirectional hydraulic pump 12 rotates reversely, the medium can move towards the opposite end of the lower horizontal medium channel, so that the two-way hydraulic pump 12 can be used for one standby.
In particular, in order to facilitate the unidirectional flow of the medium in the upper horizontal medium channel 3, in the present embodiment, a cylindrical plug having the same outer diameter as the inner diameter thereof is provided in the upper horizontal medium channel 3, and the size of the cylindrical plug is such that when one end of the cylindrical plug is in contact with the side wall of the upper horizontal medium channel 3 adjacent to the end, the communication between the upper communication channel 6 adjacent to the end and the upper horizontal medium channel 3 can be closed, and at this time, the other upper communication channel 6 is still in communication with the upper horizontal medium channel 3; meanwhile, in order to avoid the joints of the two upper communication channels 6 and the upper horizontal medium channel 3 from affecting the joints of the two lower communication channels 10 and the upper horizontal medium channel 3, in this embodiment, the two joints of the two lower communication channels 10 and the upper horizontal medium channel 3 are located outside the joint of the two upper communication channels 6 and the upper horizontal medium channel 3, which forms a whole.
Through the arrangement, in combination with fig. 1, when the bidirectional hydraulic pump 12 works and media are input, the lower communication channel 10 with positive pressure is filled with media and moves towards two ends of the lower communication channel, on one hand, the media enter the lower horizontal medium channel 4 through the communication part of the lower communication channel and the lower horizontal medium channel 4 and impact the corresponding conical plug 8 to tightly push the corresponding end part of the two ends of the middle part of the lower horizontal medium channel 4, on the other hand, the media enter the upper horizontal medium channel 3 through the connection part of the upper horizontal medium channel 3 and impact the cylindrical plug to move towards the direction deviating from the end until the cylindrical plug tightly pushes the pump body 1, on the other hand, the lower communication channel 10 with negative pressure can generate negative pressure in the end part of the upper horizontal medium channel 3 corresponding to the channel through the connection relation between the channel and the upper horizontal medium channel 3 to enable the corresponding cylindrical plug to move towards the side until the pump body 1 is tightly pushed, and the two connection parts of the two lower communication channels 10 and the upper horizontal medium channel 3 are positioned in the two upper communication channels 6 and the upper communication channel 3 and the upper horizontal medium channel 1 The connection part of the medium channel 3 forms the whole outer side, under the above state, the medium can effectively enter the upper communication channel 6 at the same side with the lower communication channel 10 through the connection part of the positive pressure side lower communication channel 10 and the upper horizontal medium channel 3 and is discharged through the oil outlet channel 2, the upper communication channel 6 corresponding to the negative pressure side lower communication channel 10 can be effectively sealed, when the bidirectional hydraulic pump 12 is overturned, the medium flow direction is opposite, and the purpose of one standby at the position can be realized.
Specifically, in order to facilitate the processing, in the present embodiment, both ends of the upper horizontal medium passage 3 penetrate through the pump body 1, and an upper threaded plug 13 is respectively disposed at the outer sides of both ends, and the end of each upper threaded plug 13 facing the pump body 1 is respectively in threaded connection with the inner wall of the upper horizontal medium passage 3 and the adjacent end thereof.
Through the arrangement, the processing efficiency of the equipment can be effectively improved, and the maintenance cost of the equipment is reduced.
In particular, in order to reduce the force of the plunger reciprocating motion impacting the pump body 1, in this embodiment, the end of the upper threaded plug 13 facing the pump body 1 is further provided with a flexible cylindrical limiting protrusion 14 coaxially distributed with the end, and when one end of the plunger contacts with the flexible cylindrical limiting protrusion 14 adjacent to the end, the upper communicating channel 6 adjacent to the end can be blocked, and at this time, the other upper communicating channel 6 is still communicated with the upper horizontal medium channel 3, and the outer diameter of the flexible cylindrical limiting protrusion 14 is smaller than the outer diameter of the plunger.
Through the arrangement, the flexible cylindrical limiting protrusion 14 can effectively reduce the impact of the cylindrical plug on the pump body 1, and meanwhile, due to the arrangement of the size of the flexible cylindrical limiting protrusion, the medium flowing through the lower communicating channel 10 can flow into the upper communicating channel 6 conveniently, namely, the flowing of the medium and the movement of the medium per se are facilitated by means of the space between the outer wall of the flexible cylindrical limiting protrusion 14 and the upper horizontal medium channel 3.
In particular, in order to further reduce the impact of the cylindrical plug on the pump body 1, in the present embodiment, the cylindrical plug is divided into two half cylindrical plugs 7 from the middle, the two half cylindrical plugs 7 are connected by the extension spring 15, and when one of the two half cylindrical plugs 7 is pressed against the pump body 1 and the extension spring 15 is compressed to the limit, the communication of one upper communication channel 6 with the upper horizontal medium channel 3 can be closed while the communication of the other upper communication channel 6 with the connection of the upper horizontal medium channel 3 is not affected.
With the above arrangement, the impact on the pump body 1 is further reduced.
In particular, in order to facilitate the movement of the semi-cylindrical plug 7 in the upper horizontal medium passage 3, in this embodiment, the outer edges of both ends of the semi-cylindrical plug 7 are each formed with an annular tapered surface.
In particular, in order to facilitate the processing of the lower horizontal medium passage 4, in this embodiment, both ends of the lower horizontal medium passage 4 are made to penetrate through the pump body 1, and the outer side of each end is provided with a lower threaded plug 16 for plugging the end, and the end of each lower threaded plug 16 is respectively in threaded connection with the inner wall of the end part in and adjacent to the lower horizontal medium passage 4.
Through the above arrangement, the processing of the lower horizontal medium passage 4 can be effectively performed.
In particular, in order to reduce the manufacturing cost of the device, in the present embodiment, the telescopic structure 9 is embodied as a return spring having one end connected to the end of the corresponding lower threaded plug 16 and the other end connected to the corresponding conical plug 8.
In particular, in order to enable the conical plug 8 to effectively seal the middle part of the lower horizontal medium channel 4 and the corresponding end part thereof, the telescopic structure 9 further comprises a guide bolt 17 which is arranged in the corresponding return spring and fixedly connected with the corresponding conical plug 8 at one end, a guide hole 18 for the telescopic movement of the guide bolt 17 adjacent to the lower threaded plug 16 is formed in the end part of the pump body 1, one end of the guide bolt 17 is always arranged in the corresponding guide hole 18, and a pressure relief groove is uniformly formed in the inner wall of the guide hole 18 around the axis of the guide hole.
Namely, the guide function of the guide bolt 17 and the guide hole 18 effectively ensures the stable movement and the closing purpose of the conical plug 8.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (8)
1. An automobile emergency pump comprises a pump body and is characterized in that an oil outlet channel, an upper horizontal medium channel, a lower horizontal medium channel and an oil inlet channel are sequentially arranged in the pump body from top to bottom, wherein one end of the oil outlet channel penetrates through the pump body, the lower horizontal medium channel and the oil inlet channel, one end of the oil inlet channel penetrates through the pump body, the upper horizontal medium channel is specifically an axial horizontal cylindrical cavity, two ends of the upper horizontal medium channel are respectively connected with an upper communicating channel, one end of the upper communicating channel is communicated with the oil outlet channel, a cylindrical plug with the same outer diameter as the inner diameter of the upper horizontal medium channel is arranged in the upper horizontal medium channel, when one end of the cylindrical plug is in contact with the inner wall of the end part of the upper horizontal medium channel on the same side as the upper horizontal medium channel, the upper communicating channel adjacent to the end of the upper horizontal medium channel and the joint of the upper horizontal medium channel can be sealed, and the other upper communicating channel is still communicated with the upper horizontal medium channel; the lower horizontal medium channel is a horizontal dumbbell-shaped cavity with two short, thick and thin middle parts, two conical plugs capable of plugging two ends of the middle part of the lower horizontal medium channel are respectively arranged in two ends of the lower horizontal medium channel, the tip end of each conical plug faces to the middle part of the lower horizontal medium channel, the end part deviating from the lower horizontal medium channel is connected with the inner wall of the end part of the lower horizontal medium channel through a telescopic structure, and each conical plug tightly pushes against the inner wall of the end part of the lower horizontal medium channel under the action of the corresponding telescopic structure and seals the end part close to the conical plug in the two ends of the middle part of the lower horizontal medium channel; the middle part of the lower horizontal medium channel is communicated with the oil inlet channel through an oil conveying channel, the homonymous ends of the upper horizontal medium channel and the lower horizontal medium channel are communicated through a lower communicating channel respectively, and two connecting parts of the two lower communicating channels and the upper horizontal medium channel are positioned at the outer sides of two connecting parts of the two upper communicating channels and the upper horizontal medium channel which form a whole; the middle part of one of the two lower communication channels is connected with one end of the bidirectional hydraulic pump, and the middle part of the other lower communication channel is connected with the other end of the bidirectional hydraulic pump.
2. The automobile emergency pump according to claim 1, wherein both ends of the upper horizontal medium channel penetrate through the pump body, an upper threaded plug for plugging the end is arranged on the outer side of each end, and the end of each upper threaded plug facing the pump body is in threaded connection with the inner wall of the upper horizontal medium channel and the adjacent end of the upper horizontal medium channel respectively.
3. The automobile emergency valve according to claim 2, wherein the upper threaded plug is further provided with a flexible cylindrical limiting protrusion which is coaxially distributed with the upper threaded plug and faces the end of the pump body, one end of the cylindrical plug is in contact with the flexible cylindrical limiting protrusion adjacent to the end of the cylindrical plug so as to block the joint of the upper communication channel and the upper horizontal medium channel adjacent to the end of the cylindrical plug, and the other upper communication channel is still communicated with the upper horizontal medium channel, and the outer diameter of the flexible cylindrical limiting protrusion is smaller than the outer diameter of the cylindrical plug.
4. The emergency valve for automobile as claimed in claim 3, wherein the cylindrical plug is divided into two half cylindrical plugs from the middle part, and the two half cylindrical plugs are connected with each other through a telescopic spring.
5. The automotive emergency valve according to claim 4, wherein the outer edges of both ends of the semi-cylindrical plug are each formed by lathing an annular tapered surface.
6. The automotive emergency valve according to claim 5, wherein both ends of the lower horizontal medium passage penetrate through the pump body, a lower threaded plug for plugging the end is arranged on the outer side of each end, and the end of each lower threaded plug is in threaded connection with the inner wall of the end in and adjacent to the lower horizontal medium passage.
7. The automobile emergency valve according to claim 6, wherein the telescopic structure is a return spring having one end connected to the end of the corresponding lower threaded plug and the other end connected to the corresponding tapered plug.
8. The automobile emergency valve according to claim 7, wherein the telescopic structure further comprises a guide bolt disposed in the corresponding return spring and having one end fixedly connected to the corresponding tapered plug, the lower threaded plug has a guide hole for the adjacent guide bolt to move in a telescopic manner, and one end of the guide bolt is disposed in the corresponding guide hole all the time, and the inner wall of the guide hole is uniformly provided with pressure relief grooves around the axis thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210269196.9A CN114704448B (en) | 2022-03-18 | 2022-03-18 | Automobile emergency pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210269196.9A CN114704448B (en) | 2022-03-18 | 2022-03-18 | Automobile emergency pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114704448A true CN114704448A (en) | 2022-07-05 |
| CN114704448B CN114704448B (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210269196.9A Active CN114704448B (en) | 2022-03-18 | 2022-03-18 | Automobile emergency pump |
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