CN110294451B - Brake fluid filling gun - Google Patents
Brake fluid filling gun Download PDFInfo
- Publication number
- CN110294451B CN110294451B CN201910115742.1A CN201910115742A CN110294451B CN 110294451 B CN110294451 B CN 110294451B CN 201910115742 A CN201910115742 A CN 201910115742A CN 110294451 B CN110294451 B CN 110294451B
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- Prior art keywords
- claw
- port
- transition block
- piston sleeve
- valve body
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- 239000012530 fluid Substances 0.000 title claims abstract description 32
- 230000007704 transition Effects 0.000 claims abstract description 86
- 210000000078 claw Anatomy 0.000 claims description 122
- 238000007789 sealing Methods 0.000 claims description 54
- 238000001802 infusion Methods 0.000 claims description 40
- 230000008602 contraction Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000005429 filling process Methods 0.000 abstract description 4
- 238000002788 crimping Methods 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 14
- 239000007788 liquid Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000000945 filler Substances 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining 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
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/42—Filling nozzles
- B67D7/44—Filling nozzles automatically closing
- B67D7/52—Filling nozzles automatically closing and provided with additional flow-controlling valve means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a brake fluid filling gun which comprises a handle combination and a transition block, wherein the handle combination is fixed on one side of the transition block; the transition piece includes transition piece, lower transition piece, goes up transition piece and lower transition piece and passes through the bolt crimping, installs the valve body of controlling evacuation mouth, defeated oil port switching respectively on the last transition piece, and the valve body passes through corresponding valve body air pipe connection and connects external equipment, can realize automatic evacuation filling to vehicle braking system, and the filling rifle is the key part of this equipment, and its reliability and stability directly influence the equipment performance, and this filling rifle has improved reliability and the stability of filling process greatly, has not only improved work efficiency, has reduced the work degree of difficulty moreover.
Description
Technical Field
The invention relates to the technical field of filling machine guns of automobile production lines, in particular to a brake fluid filling gun.
Background
Brake fluid vacuum filling equipment can realize automatic to vehicle braking system evacuation filling, current brake fluid filling rifle mainly has the jack catch atress uneven, original filling rifle jack catch passes through the round pin hub connection, the time has been long the jack catch is become flexible easily or drops, former filling rifle jack catch cover can't once turn to accomplish, need the multichannel process and still need the frock can process the completion, axiality circularity is difficult to guarantee, not only processing difficulty easily causes the problem of jack catch atress uneven moreover, moreover filling rifle inner structure overall arrangement is unreasonable to appear reacting slowly, the condition of gas leakage weeping easily. There is a need for a filling gun that has high reliability and stability, improves work efficiency, and reduces work difficulty.
Disclosure of Invention
In order to solve the technical problems, the invention provides the brake fluid filling gun and the brake fluid vacuum filling equipment, which can realize automatic vacuumizing and filling of a vehicle brake system, wherein the filling gun is a key component of the equipment, the reliability and the stability of the filling gun directly influence the performance of the equipment, and the filling gun greatly improves the reliability and the stability of the filling process, not only improves the working efficiency, but also reduces the working difficulty.
The technical scheme adopted for solving the technical problems is as follows:
The brake fluid filling gun comprises a handle assembly and a transition block, wherein the handle assembly is fixed on one side of the transition block, one side of the transition block connected with the handle assembly is provided with a claw gas port, a vacuumizing port and an oil delivery port, and a pipeline connected with the claw gas port, the vacuumizing port and the oil delivery port is connected with external equipment through the handle assembly;
The transition block comprises an upper transition block and a lower transition block, the upper transition block and the lower transition block are in compression joint through bolts, a valve body for controlling the opening and the closing of a vacuumizing port and an oil delivery port respectively is arranged on the upper transition block, and the valve body is connected with external equipment through corresponding valve body air pipe connectors;
The purpose of adopting upper and lower transition piece is in order to process relevant pipeline or air flue in the transition piece inside convenient, for example the defeated oil port needs processing to the pipeline of valve body, then downwards leads to the infusion passageway through valve body open and close position, need to divide upper and lower two parts with the transition piece this moment, then carries out processing respectively just can satisfy the requirement of processing technology design.
The lower part of the lower transition block is sequentially connected with a piston sleeve and a sealing head in series through a long screw, a matched long screw hole is formed in the piston sleeve, a shell is coaxially arranged outside the piston sleeve, an axial sliding claw cover is arranged between the piston sleeve and the shell, a claw air channel is arranged in the piston sleeve to drive and connect the claw cover, the lower part of the claw cover is movably connected with a claw, the lower edge of the shell is provided with a claw contraction edge which contracts the claw when the claw ascends, the outer side of the sealing head is provided with a top shaft which pushes the claw outwards, the top shaft is matched with a spring to provide power for opening the claw, and the top shaft is arranged in the sealing head;
the piston sleeve is matched with the shell and the claw cover to form a piston cylinder for driving the claw cover, the corresponding air passage is communicated into a sealing cavity formed by the shell, the claw air passage corresponding to the piston sleeve drives the claw cover, and then the claw is driven to slide up and down along the axis of the piston sleeve, so that the purpose of driving the claw is achieved. The claw cover is cylindrical, can be formed by one-time processing, and can achieve higher coaxiality with other parts, and the sealing performance is good.
The vacuumizing port is connected to the brake fluid filling port through a vacuum channel, the oil delivery port is communicated with the infusion channel in the lower transition block through a valve body, the infusion channel in the lower transition block is communicated with the infusion channel in the piston sleeve, the lower part of the piston sleeve is connected with an infusion tube, and the infusion tube penetrates through the sealing head. The vacuum channel passes through the transition block and the piston sleeve, then is communicated to a gap between the infusion tube and the sealing head through the sealing head, and then the gap is communicated to an inclined hole at the lower part of the sealing head.
The long screw of the lower transition block is matched with the threaded blind hole at the upper part of the sealing head, the piston sleeve is pressed between the lower transition block and the sealing head, the inner diameter of a cavity penetrated by the sealing head for accommodating the infusion tube is larger than the outer diameter of the infusion tube, a ventilation space of a vacuum channel is reserved, and then the sealing head is connected into the brake liquid tank through the inclined vacuum channel at the lower end of the sealing head, so that the structure is ingenious and the processing is easy.
The handle assembly comprises a handle, a handle connecting sleeve and a filling gun button, wherein the handle is connected with the handle connecting sleeve, the filling gun button is arranged on the handle connecting sleeve, the handle and the handle connecting sleeve are hollow, a pipeline for connecting a transition block is placed inside the handle connecting sleeve, the transition block is fixed on the handle connecting sleeve through a bolt, and the filling gun button is electrically connected with equipment connected with a filling gun. The hollow structure of the handle and the handle connecting sleeve accommodates the pipeline of the filling device connected with the filling gun transition block, so that the condition of pipeline confusion can not occur.
The oil delivery port comprises a return port and a filling port, the valve body and the corresponding valve body air pipe connectors are respectively matched with the vacuumizing port, the return port and the filling port are communicated with the infusion channel through the corresponding valve bodies, the three valve bodies are respectively a vacuum valve, a return valve and a filling valve, the vacuumizing port is communicated with the vacuum channel through the vacuum valve, and the three valve body air pipe connectors are respectively connected with the corresponding valve bodies through valve body air channels in the transition blocks in a driving mode;
The return port and the filling port are independently connected to the corresponding valve bodies, so that the two valve bodies can be independently controlled respectively, then the return port and the filling port are both connected to the infusion channel in the lower transition block after passing through the corresponding valve bodies, and then are downwards communicated to the infusion channel in the piston sleeve, the separate control of the return suction and the filling is realized, the same infusion tube is used, and the structure is simple and easy to control. And each valve body is controlled to be opened and closed by a corresponding valve body air pipe joint.
The claw gas port comprises a claw loosening gas port and a claw tightening gas port, a claw loosening gas passage and a claw tightening gas passage which correspond to the claw loosening gas port and the claw tightening gas port respectively are formed in the piston sleeve, and a corresponding transition gas passage is formed in the transition block and is connected with the corresponding gas port and the corresponding gas passage; the piston sleeve, the upper part of the shell and the upper part of the claw cover form a loosening cavity for driving the claw cover to move downwards, and the claw loosening air passage is communicated with the loosening cavity; the piston sleeve and the claw cover are matched and sealed with each other to form a tightening cavity, and the claw tightening air passage is communicated with the tightening cavity; the inner ring at the upper part of the shell is provided with a shell seal matched with the piston sleeve, the lower part of the piston sleeve is provided with a piston seal matched with the claw cover, and the claw cover is provided with seals matched with the shell and the piston sleeve respectively. The claw air port is communicated with a corresponding air passage in the piston sleeve through a corresponding claw air passage, and the air passage in the piston sleeve is communicated with a cavity for driving the claw cover to move up and down.
The clamping jaw cover is provided with a clamping jaw driving groove, a hanging notch is formed in the lower edge of the clamping jaw driving groove, an I-shaped hanging matched with the hanging notch is formed in the upper portion of the clamping jaw, a clamping convex edge matched with the clamping jaw shrinkage edge is arranged on the outer side of the lower portion of the I-shaped hanging, and the bottom of the clamping jaw is provided with a clamping jaw which is bent inwards; the lower part of the sealing head is provided with a sealing gasket, and the sealing gasket is matched with the sealing brake fluid filling port when the clamping jaw clamps the brake fluid filling port. The jack catch cover is connected the jack catch of lower part with the mode of hanging, the jack catch shrink edge of shell lower part cooperates the extrusion to press from both sides tight protruding edge when the jack catch rises for a plurality of jack catch synchronous inward contractions just so card is treating the outer edge of filler in the actuating fluid, sealed pad closely seals with filler subsides under the pressure of jack catch, when filling is accomplished the jack catch and is released, the jack catch cover is released the air flue under the drive at the jack catch, move down, take the jack catch to move down, press from both sides tight protruding edge and break away from the jack catch shrink edge, the jack catch opens under the effect of jackshaft, can be with filling the rifle and treat filler from the actuating fluid and take off.
The working process of the filling gun is as follows:
When filling is needed, an operator puts a brake fluid filling gun on a driving fluid to-be-filled opening (an oil pot opening), presses a filling gun button, tightens up an air port of a claw for ventilation, moves up along a piston sleeve under the action of compressed air to drive the claw to move up, tightens up inwards and lifts up to be tightly connected with the edge of the oil pot after the claw touches a shell, controls a filling machine control system connected with the filling gun to control and clamp for 1 second, automatically ventilates a valve body air pipe joint of a vacuum valve, opens the vacuum valve, vacuumizes a vehicle brake fluid system pipeline through the oil pot opening, cuts off air of the vacuum valve when the vacuum degree reaches a set value, automatically closes the vacuum valve, after 1 second of delay, the valve body air pipe joint of the filling valve is automatically ventilated, the filling valve is opened, brake fluid is automatically filled according to the set pressure, after the set pressure is reached, the filling valve is closed automatically, after 1 second of delay, the valve body air pipe joint of the back suction valve is ventilated, the back suction valve is opened, redundant liquid is pumped back into the equipment through the back suction pipe, after the back suction valve is closed, the alarm prompt is completed, after an operator presses a stop button, the claw releases the air port for ventilation, the claw cover drives the claw to move downwards under the action of compressed air along the piston sleeve, and under the action of the top shaft and the spring, the claw is opened and separated from the oil pot mouth, and the filling process is finished.
The invention mainly relates to a structure of a filling gun, and the on-off and time delay control of the connection of related pipelines are all in a filling machine connected with the filling gun.
The beneficial effects of the invention are as follows:
1. The purpose of adopting upper and lower transition piece is in order to process relevant pipeline or air flue in the transition piece inside convenient, for example the defeated oil port needs processing to the pipeline of valve body, then downwards leads to the infusion passageway through valve body open and close position, need to divide upper and lower two parts with the transition piece this moment, then carries out processing respectively just can satisfy the requirement of processing technology design.
2. The piston sleeve is matched with the shell and the claw cover to form a piston cylinder for driving the claw cover, the corresponding air passage is communicated into a sealing cavity formed by the shell, the claw air passage corresponding to the piston sleeve drives the claw cover, and then the claw is driven to slide up and down along the axis of the piston sleeve, so that the purpose of driving the claw is achieved. The claw cover is cylindrical, can be formed by one-time processing, and can achieve higher coaxiality with other parts, and the sealing performance is good.
3. The long screw of the lower transition block is matched with the threaded blind hole at the upper part of the sealing head, the piston sleeve is pressed between the lower transition block and the sealing head, the inner diameter of a cavity penetrated by the sealing head for accommodating the infusion tube is larger than the outer diameter of the infusion tube, a ventilation space of a vacuum channel is reserved, and then the driving liquid is connected with a driving liquid to-be-injected port (oil pot port) through the vacuum channel with the inclined lower end of the sealing head, so that the structure is ingenious and the processing is easy.
4. The hollow structure of the handle and the handle connecting sleeve accommodates the pipeline of the filling device connected with the filling gun transition block, so that the condition of pipeline confusion can not occur.
5. The return port and the filling port are independently connected to the corresponding valve bodies, so that the two valve bodies can be independently controlled respectively, then the return port and the filling port are both connected to the infusion channel in the lower transition block after passing through the corresponding valve bodies, and then are downwards communicated to the infusion channel in the piston sleeve, the separate control of the return suction and the filling is realized, the same infusion tube is used, and the structure is simple and easy to control. And each valve body is controlled to be opened and closed by a corresponding valve body air pipe joint.
Drawings
FIG. 1 is an assembled cross-sectional view of the present invention;
FIG. 2 is a partial cross-sectional view of an assembled perspective of the present invention;
FIG. 3 is a cross-sectional view of a transition block assembly with a vacuum gas evacuation passageway in accordance with the present invention;
FIG. 4 is an assembled perspective partial cross-sectional view of a transition block of the present invention;
FIG. 5 is a perspective view of a transition block of the present invention;
FIG. 6 is a combined view of the handle of the present invention;
FIG. 7 is a view of the housing of the present invention;
FIG. 8 is a view of the pawl cover of the present invention;
FIG. 9 is a piston sleeve view of the present invention;
FIG. 10 is a view of a seal head of the present invention;
fig. 11 is a jaw view of the present invention.
In the figure: 1-handle combination, 2-upper transition block, 3-lower transition block, 4-infusion tube, 5-piston sleeve, 6-sealing head, 7-jaw cover, 8-housing, 9-jaw, 11-handle, 12-handle connecting sleeve, 13-filler gun button, 21-valve body, 22-valve body tracheal fitting, 23-evacuation port, 24-return port, 25-filler port, 31-jaw loosening port, 32-infusion channel, 33-long screw, 34-jaw tightening port, 51-long screw hole, 52-piston seal, 61-top shaft, 62-sealing pad, 71-jaw driving slot, 72-hanging notch, 73-loosening cavity, 74-tightening cavity, 81-housing seal, 82-jaw tightening edge, 91-clamping flange, 92-jaw hook, 93-i-hanging, 221-valve body airway, 231-vacuum channel, 311-jaw loosening airway, 341-jaw tightening airway.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below with reference to the following detailed description and the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different structures of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted so as to not unnecessarily obscure the present invention. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The brake fluid filling gun comprises a handle assembly 1 and a transition block, wherein the handle assembly 1 is fixed on one side of the transition block, which is connected with the handle assembly 1, is provided with a claw gas port, a vacuumizing port 23 and an oil delivery port, and a pipeline connected with the claw gas port, the vacuumizing port 23 and the oil delivery port is connected with external equipment through the handle assembly 1;
the transition block comprises an upper transition block 2 and a lower transition block 3, the upper transition block 2 and the lower transition block 3 are in compression joint through bolts, a valve body 21 for respectively controlling the opening and the closing of a vacuumizing port 23 and an oil delivery port is arranged on the upper transition block 2, and the valve body 21 is connected with external equipment through a corresponding valve body air pipe joint 22;
The purpose of adopting the upper and lower transition block is to process the relevant pipeline or air flue in the transition block conveniently, for example, the oil delivery port needs to process the pipeline leading to the valve body 21, then the pipeline leads to the transfusion channel 32 downwards through the opening and closing position of the valve body 21, at this time, the transition block needs to be divided into an upper part and a lower part, and then the processing is carried out respectively to meet the requirements of the processing technology design.
The lower part of the lower transition block 3 is sequentially connected with a piston sleeve 5 and a sealing head 6 in series through a long screw 33, a matched long screw hole 51 is formed in the piston sleeve 5, a shell 8 is coaxially arranged outside the piston sleeve 5, an axial sliding claw cover 7 is arranged between the piston sleeve 5 and the shell 8, a claw air passage is arranged in the piston sleeve 5 to drive and connect with the claw cover 7, the lower part of the claw cover 7 is movably connected with a claw 9, a claw contraction edge 82 which contracts the claw 9 when the claw 9 ascends is arranged on the lower edge of the shell 8, a top shaft 61 which pushes the claw 9 outwards is arranged on the outer side of the sealing head 6, the top shaft 61 is matched with the spring to provide power for opening the claw 9, and the top shaft 61 is arranged in the sealing head 6;
The piston sleeve 5 is matched with the shell 8 and the claw cover 7 to form a piston cylinder for driving the claw cover 7, the corresponding air passage is communicated into a sealing cavity formed by the shell 8 and the claw cover 7, the claw air passage corresponding to the piston sleeve 5 drives the claw cover 7, and then the claw 9 is driven to slide up and down along the axis of the piston sleeve 5, so that the purpose of driving the claw 9 is achieved. The claw cover 7 is cylindrical, can be formed by one-time machining, and can achieve higher coaxiality with other parts, and the sealing performance is good.
The vacuumizing port 23 is connected to the brake fluid filling port through a vacuum channel 231, the oil delivery port is communicated with an infusion channel 32 in the lower transition block 3 through a valve body 21, the infusion channel 32 in the lower transition block 3 is communicated with the infusion channel 32 in the piston sleeve 5, the lower part of the piston sleeve 5 is connected with an infusion tube 4, and the infusion tube 4 passes through the sealing head 6. The vacuum channel 231 passes through the transition block and the piston sleeve 5, then is communicated to a gap between the infusion tube 4 and the sealing head 6 through the sealing head 6, and then the gap is communicated to an inclined hole at the lower part of the sealing head 6.
The long screw 33 of the lower transition block 3 is matched with a threaded blind hole at the upper part of the sealing head 6, the piston sleeve 5 is pressed between the lower transition block 3 and the sealing head 6, the inner diameter of a cavity penetrated by the sealing head 6 for accommodating the infusion tube 4 is larger than the outer diameter of the infusion tube 4, a ventilation space of a vacuum channel 231 is reserved, and then the driving liquid is connected into a driving liquid to-be-injected port (an oil pot port) through the vacuum channel 231 (an inclined hole at the lower part of the sealing head 6) inclined at the lower end of the sealing head 6, so that the structure is ingenious.
The handle combination 1 comprises a handle 11, a handle connecting sleeve 12 and a filling gun button 13, wherein the handle 11 is connected with the handle connecting sleeve 12, the filling gun button 13 is arranged on the handle connecting sleeve 12, the handle 11 and the handle connecting sleeve 12 are hollow, a pipeline for connecting a transition block is arranged inside the handle connecting sleeve, the transition block is fixedly arranged on the handle connecting sleeve 12 through bolt connection, and the filling gun button 13 is electrically connected with equipment connected with a filling gun. The hollow structures of the handle 11 and the handle connecting sleeve 12 contain the pipeline of the filling device connected with the filling gun transition block, so that the condition of pipeline confusion can not occur.
The oil delivery port comprises a return port 24 and a filling port 25, the valve body 21 and the corresponding valve body air pipe joint 22 are respectively provided with three ports, namely, a vacuum pumping port 23, the return port 24 and the filling port 25 are respectively communicated with an infusion channel 32 through the corresponding valve body 21, the three valve bodies 21 are respectively vacuum valves (connected with the vacuum pumping port 23), suction valves (connected with the return port 24) and filling valves (connected with the filling port 25), the vacuum pumping ports are respectively communicated with the vacuum channel through the vacuum valves, and the three valve body air pipe joints 22 are respectively connected with the corresponding valve bodies 21 through valve body air channels 221 in the transition blocks in a driving manner;
The back suction port 24 and the filling port 25 are independently connected to the corresponding valve bodies 21, so that the two valve bodies 21 can be independently controlled respectively, then the back suction port 24 and the filling port 25 are both connected to the infusion channel 32 in the lower transition block 3 after passing through the corresponding valve bodies 21, and then are downwards communicated to the infusion channel 32 in the piston sleeve 5, the back suction and filling are independently controlled, and the same infusion tube 4 is used, so that the structure is simple and easy to control. While each valve body 21 is controlled to be opened and closed by a corresponding valve body air pipe joint 22.
The claw gas port comprises a claw loosening gas port 31 and a claw tightening gas port 34, a claw loosening gas passage 311 and a claw tightening gas passage 341 which respectively correspond to the claw loosening gas port 31 and the claw tightening gas port 34 are formed in the piston sleeve 5, and a corresponding transition gas passage is formed in the transition block and is connected with the corresponding gas port and the corresponding gas passage; the piston sleeve 5, the upper part of the shell 8 and the piston sleeve 5 are sealed, and the upper part of the jaw cover 7 forms a loosening cavity for driving the jaw cover 7 to move downwards, and the jaw loosening air passage 311 is communicated with the loosening cavity 73; the piston sleeve 5 and the claw cover 7 are matched and sealed to form a tightening cavity 74, and the claw tightening air passage 341 is communicated with the tightening cavity; the inner ring at the upper part of the shell 8 is provided with a shell seal 81 matched with the piston sleeve 5, the lower part of the piston sleeve 5 is provided with a piston seal 52 matched with the claw cover 7, and the claw cover 7 is provided with seals matched with the shell 8 and the piston sleeve 5 respectively. The jaw air ports are communicated to corresponding air passages in the piston sleeve 5 through corresponding jaw air passages, and the air passages in the piston sleeve 5 are communicated to the driving jaw cover up and down movement release cavity 73 and the tightening cavity 74.
The clamping jaw cover 7 is provided with a clamping jaw driving groove 71, a hanging notch 72 is formed in the lower edge of the clamping jaw driving groove 71, an I-shaped hanging part 93 matched with the hanging notch 72 is formed in the upper part of the clamping jaw 9, a clamping convex edge 91 matched with a clamping jaw contraction edge 82 is formed on the outer side of the lower part of the I-shaped hanging part 93, and a clamping jaw 92 which is bent inwards is arranged at the bottom of the clamping jaw 9; the lower part of the sealing head 6 is provided with a sealing gasket 62, and the sealing gasket 62 is matched with the brake fluid filling port when the clamping jaws 9 clamp the brake fluid filling port. The jaw cover 7 is connected with the jaw 9 at the lower part in a hanging manner, the jaw shrinkage edge 82 at the lower part of the shell 8 is matched with the extrusion clamping convex edge 91 when the jaw 9 ascends, so that the jaws 9 synchronously shrink inwards, the outer edge of the opening to be filled with driving liquid is clamped, the sealing gasket 62 is tightly sealed with the opening to be filled with driving liquid under the pressure of the jaw 9, when the jaw 9 is loosened after filling, the jaw cover 7 moves downwards under the driving of the jaw loosening air channel 311, the jaw 9 is carried to move downwards, the clamping convex edge 91 is separated from the jaw shrinkage edge 82, and the jaw 9 is opened under the action of the jackshaft 61, so that the filling gun can be taken down from the opening to be filled with driving liquid.
The working process of the filling gun is as follows:
When filling is needed, an operator puts a brake fluid filling gun on a driving fluid to-be-filled opening (an oil pot opening), presses a filling gun button 13 (a button for starting filling), a claw tightening air opening 34 is ventilated, a claw cover 7 moves upwards along a piston sleeve 5 under the action of compressed air to drive a claw 9 to move upwards, after the claw 9 touches a shell 8, the claw 9 tightens inwards and lifts upwards to be tightly clamped with the edge of the oil pot opening, a filling machine control system connected with the filling gun controls and clamps for 1 second later, a valve body air pipe joint 22 of a vacuum valve is automatically ventilated, a vacuum valve is opened, a vehicle brake fluid system pipeline is vacuumized through the oil pot opening, when the vacuum degree reaches a set value, the vacuum valve is cut off, the vacuum valve is automatically closed, the filling valve body air pipe joint 22 is automatically ventilated after 1 second later, the filling valve is opened, brake fluid is automatically filled according to the set pressure, after the set pressure is reached, the filling valve is cut off, the filling valve is automatically closed, after time delay, the air pipe joint 22 of the valve body of the back suction valve is ventilated after 1 second, the back suction valve is opened, redundant liquid is pumped back into the device through the back suction pipe 4, after the back suction time, the back suction valve is cut off, the back suction valve is closed, an alarm prompt is completed, after an operator presses the filling gun button 13 (the button for stopping filling), the claw release air port 31 is ventilated, the claw cover 7 drives the claw 9 to move downwards along the piston sleeve 5 under the action of compressed air, the claw 9 is opened and separated from the oil pot mouth under the action of the top shaft 61 and the spring (the spring for ejecting the top shaft), and the filling process is finished.
The invention mainly relates to a structure of a filling gun, and the on-off and time delay control of the connection of related pipelines are all in a filling machine connected with the filling gun.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (3)
1. The brake fluid filling gun is characterized by comprising a handle combination and a transition block, wherein the handle combination is fixed on one side of the transition block, which is connected with the handle combination, is provided with a claw gas port, a vacuumizing port and an oil delivery port, and a pipeline connected with the claw gas port, the vacuumizing port and the oil delivery port is connected with external equipment through the handle combination;
The transition block comprises an upper transition block and a lower transition block, the upper transition block and the lower transition block are in compression joint through bolts, a valve body for controlling the opening and the closing of a vacuumizing port and an oil delivery port respectively is arranged on the upper transition block, and the valve body is connected with external equipment through corresponding valve body air pipe connectors;
the lower part of the lower transition block is sequentially connected with a piston sleeve and a sealing head in series through a long screw, a matched long screw hole is formed in the piston sleeve, a shell is coaxially arranged outside the piston sleeve, an axial sliding claw cover is arranged between the piston sleeve and the shell, a claw air channel is arranged in the piston sleeve to drive and connect the claw cover, the lower part of the claw cover is movably connected with a claw, a claw contraction edge which contracts the claw when the claw ascends is arranged at the lower edge of the shell, and a top shaft which pushes the claw outwards is arranged at the outer side of the sealing head;
The vacuumizing port is connected to the brake fluid filling port through a vacuum channel, the oil delivery port is communicated with an infusion channel in the lower transition block through a valve body, the infusion channel in the lower transition block is communicated with an infusion channel in the piston sleeve, the lower part of the piston sleeve is connected with an infusion tube, and the infusion tube passes through the sealing head;
the handle assembly comprises a handle, a handle connecting sleeve and a filling gun button, wherein the handle is connected with the handle connecting sleeve, the filling gun button is arranged on the handle connecting sleeve, the handle and the handle connecting sleeve are hollow, a pipeline for connecting a transition block is arranged in the handle connecting sleeve, the transition block is fixedly connected to the handle connecting sleeve through a bolt, and the filling gun button is electrically connected with equipment connected with a filling gun;
The oil delivery port comprises a return port and a filling port, the valve body and the corresponding valve body air pipe connectors are three, and are respectively matched with a vacuumizing port, the return port and the filling port are communicated with the infusion channel through the corresponding valve bodies, the vacuumizing port is communicated with the vacuum channel through the corresponding valve bodies, and the valve body air pipe connectors are respectively connected with the valve bodies through valve body air passages in the transition blocks in a driving mode;
the vacuum channel passes through the transition block and the piston sleeve, then is communicated to a gap between the infusion tube and the sealing head through the sealing head, and then the gap is communicated to an inclined hole at the lower part of the sealing head.
2. The brake fluid filling gun according to claim 1, wherein the claw gas port comprises a claw loosening gas port and a claw tightening gas port, claw loosening gas passages and claw tightening gas passages corresponding to the claw loosening gas port and the claw tightening gas port respectively are formed in the piston sleeve, and corresponding transition gas passages are formed in the transition block and are connected with the corresponding gas ports and the corresponding gas passages;
the piston sleeve, the upper part of the shell and the upper part of the claw cover form a loosening cavity for driving the claw cover to move downwards, and the claw loosening air passage is communicated with the loosening cavity;
the piston sleeve and the claw cover are matched and sealed with each other to form a tightening cavity, and the claw tightening air passage is communicated with the tightening cavity;
The inner ring at the upper part of the shell is provided with a shell seal matched with the piston sleeve, the lower part of the piston sleeve is provided with a piston seal matched with the claw cover, and the claw cover is provided with seals matched with the shell and the piston sleeve respectively.
3. The brake fluid filling gun according to claim 2, wherein the claw cover is provided with a claw driving groove, a hanging notch is formed in the lower edge of the claw driving groove, an I-shaped hanging matched with the hanging notch is formed in the upper part of the claw, a clamping convex edge matched with the contraction edge of the claw is formed in the outer side of the lower part of the I-shaped hanging, and the bottom of the claw is provided with an inwards bent claw hook;
The lower part of the sealing head is provided with a sealing gasket, and the sealing gasket is matched with the sealing brake fluid filling port when the clamping jaw clamps the brake fluid filling port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910115742.1A CN110294451B (en) | 2019-02-15 | 2019-02-15 | Brake fluid filling gun |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910115742.1A CN110294451B (en) | 2019-02-15 | 2019-02-15 | Brake fluid filling gun |
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| Publication Number | Publication Date |
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| CN110294451A CN110294451A (en) | 2019-10-01 |
| CN110294451B true CN110294451B (en) | 2024-05-07 |
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| CN201910115742.1A Active CN110294451B (en) | 2019-02-15 | 2019-02-15 | Brake fluid filling gun |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113336180B (en) * | 2021-06-22 | 2023-07-21 | 济南锐骏自动化设备有限公司 | Three-jaw claw vacuum filling gun |
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| CN110294451A (en) | 2019-10-01 |
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