CN114704448B - Automobile emergency pump - Google Patents
Automobile emergency pump Download PDFInfo
- Publication number
- CN114704448B CN114704448B CN202210269196.9A CN202210269196A CN114704448B CN 114704448 B CN114704448 B CN 114704448B CN 202210269196 A CN202210269196 A CN 202210269196A CN 114704448 B CN114704448 B CN 114704448B
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- China
- Prior art keywords
- channel
- horizontal medium
- medium channel
- plug
- upper horizontal
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- 238000004891 communication Methods 0.000 claims abstract description 77
- 230000009975 flexible effect Effects 0.000 claims description 13
- 230000002457 bidirectional effect Effects 0.000 description 9
- 230000007547 defect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 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
- 238000007789 sealing Methods 0.000 description 1
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
-
- 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
-
- 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
Landscapes
- 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 ends of the upper horizontal medium channel are respectively connected with an upper communication channel, one end of which is communicated with the oil outlet channel, and a cylindrical plug is arranged in the upper horizontal medium channel; 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 delivery channel, and the homonymous ends of the upper horizontal medium channel and the lower horizontal medium channel are respectively communicated through a lower communication channel; the middle part of one of the two lower communication channels is connected with one end of the two-way hydraulic pump, and the other one is connected with the other end of the two-way hydraulic pump; the invention can effectively realize the purpose of one standby and improve the stability of the equipment.
Description
Technical Field
The invention relates to a pump, in particular to an emergency pump.
Background
Hydraulic power steering is a hydraulic system or 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 by driving a hydraulic steering pump to push the steering gear to move or rotate, so that auxiliary force is applied to the steering system, and the tire is steered. In this system, if the steering oil pump is damaged, the system loses hydraulic assistance, steering is very heavy or difficult, and even causes an accident.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an automobile emergency pump so as to solve the technical problem that a steering oil pump in the prior art has certain unreliability.
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, one end of which penetrates through the pump body, are sequentially arranged in the pump body from top to bottom, the upper horizontal medium channel is a cylindrical cavity with an axial horizontal direction, two ends of the upper horizontal medium channel are respectively connected with an upper communication channel, one end of the upper horizontal medium channel is communicated with the oil outlet channel, a cylindrical plug with the same outer diameter and the same inner diameter is arranged in the upper horizontal medium channel, one end of the cylindrical plug can seal the upper communication channel adjacent to the end when being contacted with the inner wall of the end part of the upper horizontal medium channel, which is at the same side, and the joint of the upper horizontal medium channel is still communicated with the upper horizontal medium channel; the lower horizontal medium channel is specifically two short-thick middle-thin horizontal dumbbell-shaped cavities, two conical plugs capable of plugging two ends of the middle 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 the middle 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 up and closes the end part, close to the end part, of the middle of the lower horizontal medium channel under the action of the corresponding telescopic structure; 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 respectively communicated through a lower communication channel, and two joints of the two lower communication channels and the upper horizontal medium channel are positioned at the outer sides of the whole body formed by the two joints of the two upper communication channels and the upper horizontal medium channel; the middle part of one of the two lower communication channels is connected with one end of the two-way hydraulic pump, and the middle part of the other lower communication channel is connected with the other end of the two-way hydraulic pump.
Further, 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 each upper threaded plug is connected with the inner wall of the upper horizontal medium channel and the adjacent end part of the upper horizontal medium channel in a threaded manner towards the end part of the pump body.
Further, the upper threaded plug is further provided with flexible cylindrical limit protrusions which are coaxially distributed on the end portion of the pump body towards the end portion of the pump body, one end of the cylindrical plug can be used for blocking the joint of the upper communication channel adjacent to the end and the upper horizontal medium channel when contacting with the adjacent flexible cylindrical limit protrusions, at the moment, the other upper communication channel is still communicated with the upper horizontal medium channel, and the outer diameter of each flexible cylindrical limit protrusion is smaller than that of the cylindrical plug.
Further, the cylindrical plug is divided into two half-cylindrical plugs from the middle part, and the two half-cylindrical plugs are connected through a telescopic spring.
Further, annular conical surfaces are turned on the outer edges of the two ends of the semi-cylindrical plug.
Further, both ends of the lower horizontal medium channel 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 part of each lower threaded plug is in threaded connection with the inner wall of the lower horizontal medium channel and the adjacent end part of the lower horizontal medium channel.
Further, the telescopic structure is specifically a reset spring, one end of which is connected with the end part of the corresponding lower threaded plug, and the other end of which is connected with the corresponding conical plug.
Further, the composition of extending structure is still including locating the guide bolt that corresponds reset spring in and one end and corresponds toper stopper fixed connection, set up the guiding hole that supplies the flexible activity of the guide bolt rather than closing on the tip of lower screw stopper towards the pump body, just the one end of guide bolt is established in corresponding guiding hole all the time, evenly be equipped with the pressure release groove around its axle on the guiding hole inner wall.
Compared with the prior art, the invention has the following advantages:
The automobile emergency pump provided by the invention is arranged on a gear box, and the rotation of a gear drives a bidirectional hydraulic pump to rotate when a vehicle walks, so that the hydraulic power is assisted to provide for a steering system, and the steering system realizes the steering function again. After the structure is installed, the oil inlet and the oil outlet can be realized by fixing the oil port no matter the vehicle is in a forward state or a backward state (namely, the bidirectional hydraulic pump rotates clockwise or anticlockwise), and meanwhile, the purpose of one standby of medium conveying channels in the pump can be realized, the defect that a single channel in the pump provides a medium in the prior art is avoided, and the stability of equipment is improved.
Drawings
Fig. 1 is a schematic structural diagram of an automotive emergency pump according to 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 passage; 6. an upper communication channel; 7. a semi-cylindrical plug; 8. a conical plug; 9. a telescopic structure; 10. a lower communication channel; 11. an oil delivery passage; 12. a two-way hydraulic pump; 13. a threaded plug is arranged; 14. a flexible cylindrical limit projection; 15. a telescopic spring; 16. a lower thread plug; 17. a guide pin; 18. and a guide hole.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
In the embodiment, firstly, an oil outlet channel 2, an upper horizontal medium channel 3, a lower horizontal medium channel 4 and an oil inlet channel 5, one end of which penetrates through a valve body, are sequentially arranged in the pump body 1 from top to bottom; the lower horizontal medium channel 4 is specifically a horizontal dumbbell-shaped cavity with two short thick middle thin parts, the inner diameters of two ends of the cavity are larger than the inner diameter of the middle part, and meanwhile, for the convenience of processing, in the embodiment, the two ends of the cavity are symmetrically arranged about the middle part of the cavity, and for the convenience of oil supply into 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 and is 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 an axially horizontal cylindrical cavity, and in order to facilitate processing, in the present embodiment, the upper horizontal medium channel 3 and the lower horizontal medium channel 4 are disposed in parallel, and the center points of the two are on the same straight line; meanwhile, the same-name ends of the upper horizontal medium channel 3 and the lower horizontal medium channel 4 are respectively connected through a lower communication channel 10 (shown by a dotted line in the figure), namely, the left end of the upper horizontal medium channel 3 and the right end of the lower horizontal medium channel 4 are respectively connected through the lower communication channels 10, the right ends of the upper horizontal medium channel 3 and the lower horizontal medium channel 4 are arranged in the same way, and in the embodiment, the two lower communication channels 10 are symmetrically arranged about the center of the lower horizontal medium channel 4; in order to provide the 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 an upper communication channel 6, the other end of the upper communication channel 6 is communicated with the oil outlet channel 2, and the connection mode of the other upper communication channel 6 is the same as that of the upper communication channel 6, in this embodiment, the two upper communication channels 6 are symmetrically arranged about the center of the upper horizontal medium channel 3;
Through the arrangement, a medium circulation 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 delivery channel 11, and after being diffused to two sides of the lower horizontal medium channel 4, the medium enters the two ends of the upper horizontal medium channel 3 from the two lower communication channels 10 at the two ends of the lower horizontal medium channel 4, and finally enters the oil outlet channel 2 through the two upper communication channels 6 to be discharged.
In order to realize the purpose of providing a pump for one use and enabling the device to stably operate, in the embodiment, firstly, two conical plugs 8 are respectively arranged in two ends of a lower horizontal medium channel 4, the tip end of each conical plug 8 faces the middle part of the lower horizontal medium channel 4, the end part of each conical plug facing away 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 prop up and close the end part adjacent to the middle part of the lower horizontal medium channel 4 under the action of the corresponding telescopic structure 9, and secondly, in the embodiment, the middle part of one of 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 part of the bidirectional hydraulic pump 12; wherein the bi-directional hydraulic pump 12 is arranged behind the pump body 1, which is shown in broken lines.
Through the above arrangement, after the bidirectional hydraulic pump 12 is opened, 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 in a direction away from the center of the lower horizontal medium channel 4 under the action of the negative pressure, and then the end part of the conical plug 8 corresponding to the middle part of the lower horizontal medium channel 4 can be opened, and the other conical plug 8 moves in a direction towards the center of the lower horizontal medium channel 4, so that the end part of the conical plug corresponding to the middle part of the lower horizontal medium channel 4 is closed.
When the medium flows and the bidirectional hydraulic pump 12 works, the medium can only move to one end of the lower horizontal medium channel 4 after entering the lower horizontal medium channel 4 through the oil inlet channel 5 and the oil delivery channel 11, and when the bidirectional hydraulic pump 12 reverses, the medium can move to the opposite end, so that the standby application of the medium can be realized.
In particular, in order to facilitate the unidirectional flow of the medium in the upper horizontal medium channel 3, in this 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 cylindrical plug is sized so as to close the communication between the upper communication channel 6 adjacent to the end and the upper horizontal medium channel 3 when one end thereof contacts the side wall adjacent to the end in the upper horizontal medium channel 3, and at this time, the other upper communication channel 6 remains in communication with the upper horizontal medium channel 3; meanwhile, in order to avoid that the connection between the two upper communication channels 6 and the upper horizontal medium channel 3 affects the connection between the two lower communication channels 10 and the upper horizontal medium channel 3, in this embodiment, the connection between the two lower communication channels 10 and the upper horizontal medium channel 3 is located outside the whole of the connection between the two upper communication channels 6 and the upper horizontal medium channel 3.
Through the arrangement, in combination with fig. 1, when the bidirectional hydraulic pump 12 works and medium is input, the medium can be filled in the lower communication channel 10 with positive pressure and move towards the two ends of the lower communication channel 10, on one hand, the connection part of the lower communication channel 4 and the lower communication channel 4 enters the lower communication channel 4 and impacts the corresponding conical plug 8 to tightly prop against the corresponding end part in the two ends of the middle part of the lower communication channel 4, on the other hand, the medium enters the upper communication channel 3 through the connection part of the lower communication channel and the upper communication channel 3 and impacts the cylindrical plug to move towards the direction away from the end until the pump body 1 is tightly propped, meanwhile, the negative pressure can be generated in the end part of the lower communication channel 10 with negative pressure by means of the connection relation between the channel and the upper communication channel 3, so that the corresponding cylindrical plug moves towards the side until the pump body 1 is tightly propped against the end, on the other hand, the connection part of the two lower communication channels 10 and the upper communication channel 6 and the upper communication channel 3 is arranged on the outer side of the whole, on the other hand, under the condition, the medium can effectively flow towards the opposite direction of the upper communication channel 6 through the positive pressure, and the upper communication channel 10 and the lower communication channel 3 can be communicated with the lower communication channel 6 through the opposite direction when the opposite to the purpose of the medium is realized, and the bidirectional hydraulic pump is closed, and the medium can flow out from the upper communication channel 2 through the upper communication channel 6.
In particular, for convenience of processing, in this embodiment, two ends of the upper horizontal medium channel 3 penetrate the pump body 1, and an upper threaded plug 13 is respectively disposed at the outer sides of the two ends of the upper horizontal medium channel 3, and each end of the upper threaded plug 13 facing the pump body 1 is respectively in threaded connection with the inner wall of the upper horizontal medium channel 3 and the adjacent end thereof.
Through the arrangement, the processing efficiency of the equipment can be effectively improved, and meanwhile, the maintenance cost of the equipment is reduced.
In particular, in order to reduce the force of impact on the pump body 1 during the reciprocating motion of the cylindrical plug, in this embodiment, the end of the upper threaded plug 13 facing the pump body 1 is further provided with a flexible cylindrical limit protrusion 14 coaxially distributed therewith, and when one end of the cylindrical plug contacts with the adjacent flexible cylindrical limit protrusion 14, the upper communication channel 6 adjacent to the end can be plugged, and at this time, the other upper communication channel 6 still remains in communication with the upper horizontal medium channel 3, and the outer diameter of the flexible cylindrical limit protrusion 14 is smaller than that of the cylindrical plug.
Through the above-mentioned setting, the spacing protruding 14 of flexible cylindricality can effectively reduce the impact of cylindricality stopper to the pump body 1, and the setting of its size simultaneously can be convenient for gush into through the medium of lower communication channel 10 in the last communication channel 6, promptly with the help of the spacing protruding 14 outer wall of flexible cylindricality and the space between the upper horizontal medium passageway 3, the medium gush into and its own motion of being convenient for.
In particular, in order to further reduce the impact of the cylindrical plugs on the pump body 1, in the present embodiment, the cylindrical plugs are divided into two half-cylindrical plugs 7 from the middle, the two half-cylindrical plugs 7 are connected by the expansion spring 15, and when one of the two half-cylindrical plugs 7 abuts against the pump body 1 and the expansion spring 15 is compressed to the limit, the communication between one upper communication passage 6 and the upper horizontal medium passage 3 can be closed while the communication between the other upper communication passage 6 and the connection between the upper horizontal medium passage 3 is not affected.
By 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 channel 3, in this embodiment, the outer edges of both ends of the semi-cylindrical plug 7 are each provided with an annular conical surface.
In particular, in order to facilitate the processing of the lower horizontal medium channel 4, in this embodiment, two ends of the lower horizontal medium channel 4 penetrate through the pump body 1, and a lower threaded plug 16 for plugging the end is disposed on the outer side of each end, and an end portion of each lower threaded plug 16 is in threaded connection with an inner wall of the lower horizontal medium channel 4 and an adjacent end portion thereof.
With the above arrangement, the processing of the lower horizontal medium passage 4 can be effectively performed.
In particular, in order to reduce the manufacturing costs of the device, in this embodiment the telescopic structure 9 is embodied as a return spring, one end of which is connected to the end of the corresponding lower threaded plug 16 and the other end of which is connected to the corresponding conical plug 8.
In particular, in order to enable the conical plug 8 to effectively close 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 reset spring and one end of which is fixedly connected with the corresponding conical plug 8, the end part of the lower threaded plug 16, which faces the pump body 1, is provided with a guide hole 18 for the telescopic movement of the guide bolt 17 adjacent to the lower threaded plug, one end of the guide bolt 17 is always arranged in the corresponding guide hole 18, and the inner wall of the guide hole 18 is uniformly provided with pressure relief grooves around the shaft of the guide hole.
Namely, by virtue of the guiding action of the guide bolt 17 and the guide hole 18, the stable movement and the sealing purpose of the conical plug 8 are effectively ensured.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. The 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, wherein one end of the oil outlet channel penetrates through the pump body, the upper horizontal medium channel is a cylindrical cavity with an axial level, two ends of the cylindrical cavity are respectively connected with an upper communication channel, one end of the upper communication 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, the joint of the upper communication channel adjacent to the upper horizontal medium channel and the upper horizontal medium channel can be closed when one end of the cylindrical plug contacts with the inner wall of the end part of the upper horizontal medium channel, which is at the same side, of the upper horizontal medium channel, and the other upper communication channel is still communicated with the upper horizontal medium channel; the lower horizontal medium channel is a horizontal dumbbell-shaped cavity with thick ends at two ends and thin middle, conical plugs capable of plugging two ends of the middle 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 the middle 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 up and closes the end part adjacent to the conical plug in the two ends of the middle of the lower horizontal medium channel under the action of the corresponding telescopic structure; 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 respectively communicated through a lower communication channel, and two joints of the two lower communication channels and the upper horizontal medium channel are positioned at the outer sides of the whole body formed by the two joints of the two upper communication channels and the upper horizontal medium channel; the middle part of one of the two lower communication channels is connected with one end of the two-way hydraulic pump, and the middle part of the other lower communication channel is connected with the other end of the two-way hydraulic pump.
2. An automotive emergency pump according to claim 1, wherein both ends of the upper horizontal medium passage penetrate the pump body, and an upper screw plug for plugging the end is provided on the outer side of each end, and each end of the upper screw plug facing the pump body is screwed with the inner wall of the upper horizontal medium passage and the adjacent end thereof.
3. The automobile emergency pump according to claim 2, wherein the end of the upper threaded plug facing the pump body is further provided with flexible cylindrical limit protrusions which are coaxially distributed with the upper threaded plug, one end of the cylindrical plug can seal the connection part between the upper communication channel adjacent to the end and the upper horizontal medium channel when being contacted with the adjacent flexible cylindrical limit protrusions, and the other upper communication channel still keeps communicating with the upper horizontal medium channel at the moment, and the outer diameter of the flexible cylindrical limit protrusions is smaller than that of the cylindrical plug.
4. A car emergency pump according to claim 3, wherein the cylinder plug is split into two half-cylinder plugs from the middle, and the two half-cylinder plugs are connected by a telescopic spring.
5. The emergency pump of claim 4, wherein the outer edges of the two ends of the semi-cylindrical plug are provided with annular conical surfaces.
6. The emergency pump according to claim 5, wherein two ends of the lower horizontal medium channel penetrate through the pump body, a lower threaded plug for plugging the lower 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 lower horizontal medium channel and the adjacent end part of the lower horizontal medium channel.
7. The vehicle emergency pump of claim 6, wherein the telescoping structure is embodied as a return spring having one end connected to the end of the corresponding lower threaded plug and the other end connected to the corresponding conical plug.
8. The automobile emergency pump according to claim 7, wherein the telescopic structure further comprises a guide bolt which is arranged in the corresponding reset spring and one end of which is fixedly connected with the corresponding conical plug, the end part of the lower threaded plug, which faces the pump body, is provided with a guide hole for telescopic movement of the guide bolt adjacent to the lower threaded plug, one end of the guide bolt is always arranged in the corresponding guide hole, and pressure relief grooves are uniformly formed on the inner wall of the guide hole around the shaft of the guide hole.
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 CN114704448A (en) | 2022-07-05 |
| CN114704448B true CN114704448B (en) | 2024-04-30 |
Family
ID=82168946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210269196.9A Active CN114704448B (en) | 2022-03-18 | 2022-03-18 | Automobile emergency pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114704448B (en) |
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| CN114704448A (en) | 2022-07-05 |
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