CN206889382U

CN206889382U - Improved structure of pressure reducing balance assembly

Info

Publication number: CN206889382U
Application number: CN201720814460.7U
Authority: CN
Inventors: 杨北斗
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-11-03
Filing date: 2017-07-06
Publication date: 2018-01-16
Anticipated expiration: 2027-07-06
Also published as: TWM540181U

Abstract

The utility model provides an improvement structure of balanced assembly of decompression, a body are equipped with three first, two and holes, make the first hole can communicate inside the crankcase, then install the check valve as for the second hole for when the crankcase is inside to reach predetermined malleation, can carry out the decompression through this check valve, then install the admission valve as for the third hole, the concave air chamber that is equipped with intercommunication third hole of this admission valve, characterized in that: the outer end edge of the air chamber is provided with a threaded sleeve with an inner threaded hole, the inner threaded hole is screwed with a hollow air inlet pipe, the inner end edge of the air inlet pipe is controlled to be in airtight sliding fit with the air chamber, a piston is additionally arranged in the air chamber in a sliding fit manner, the piston is actuated by a spring to close the inner end of the air inlet pipe, so that the prepressing force of the spring acting on the piston to close the air inlet pipe can be adjusted when the air inlet pipe is screwed along the inner threaded hole, and when the inside of the crankcase reaches a set negative pressure, the air inlet pipe can be opened by overcoming the prepressing force.

Description

The structure-improved of decompression balance assembly

Technical field

A kind of decompression balance assembly that can be installed on outside engine crankcase is the utility model is related to, the espespecially decompression balances Assembly have can direct compensation crankcase internal negative pressure intake valve, and more simplify and can discharge inside crankcase with structure For the check valve of malleation.

Background technology

Press, background technology, please just as shown in No. 104208002 " decompression bascule " patent case of TaiWan, China Voluntarily referring to the specification of the patent case, it at least has the disadvantages that：

First, its intake valve 40 and negative pressure value that can not directly inside setting compensation crankcase, must be external by fixture 43 The second throttling element 48,48a (being commonly called as pressure regulator valve) shown in Fig. 3 or Fig. 6 can be set, and thus, it is special will greatly increase this The length and volume of case before profit, what is made is not easy the confined space in response to engine chamber, the puzzlement for causing installation to be not easy.

2nd, its intake valve 40 connects the throttling element 48 of fixture 43 and second, 48a position in group, due to no airtight construction Set, so have the misgivings of gas leakage.

3rd, the shortcomings that its check valve 30 has that complicated, cost is high, and pressure release is unhappy.

In view of this, the utility model designer through constantly research and test, whole utility model go out to improve on take off patent The utility model of preceding case missing.

Utility model content

The purpose of this utility model is：A kind of structure-improved for depressurizing balance assembly is provided, solution is deposited in the prior art Above-mentioned technical problem.

To achieve the above object, the technical solution adopted in the utility model is：

A kind of structure-improved for depressurizing balance assembly, it is characterized in that comprising at least：

One body, it has the first hole, the second hole and the 3rd hole of threeway, and first hole can be communicated in crankcase Portion；

One check valve, it is installed on body and the second hole of connection, during reaching predetermined malleation inside crankcase, can led to Cross the check valve and the release of pressure that carries out；And

One intake valve, it has the pedestal for being mounted on body, and the pedestal is communicated with the air chamber in the 3rd hole, and outside air chamber Ora terminalis, which is provided with one, has the swivel nut of inner bolt hole, and the inner bolt hole, which is screwed with one, has externally threaded hollow air inlet pipe, the air inlet pipe Interior ora terminalis can be moved and airtight slide fit in air chamber by spiral shell；Be equipped with piston in air chamber, and with the spring start piston close into Tracheae is inner, and spiral shell of the air inlet pipe along inner bolt hole moves the precompression that can adjust spring effect piston closing air inlet pipe.

The structure-improved of described decompression balance assembly, wherein：The air inlet pipe also spiral shell, which is provided with one, can abut the nut of swivel nut, To position the air inlet pipe.

The structure-improved of described decompression balance assembly, wherein：Ora terminalis periphery build-in has seal ring in the air inlet pipe, to For the airtight slide fit of ora terminalis in air inlet pipe in air chamber.

The structure-improved of described decompression balance assembly, wherein：The pedestal is also inner provided with some connections the 3rd in air chamber Kong Qi roads, a mesopore is provided with air chamber the inner center, and piston has the piston part of energy slide fit air chamber, and the bar of slide fit mesopore Portion, and some approaching channels have been provided in piston part periphery, for a spring housing together in bar portion periphery, it is inner, another that the spring one end abuts air chamber One end start piston part, make the piston part that there is the inner movement tendency of closing air inlet pipe at any time.

The structure-improved of described decompression balance assembly, wherein：The hole of body the 3rd has the 3rd threaded portion, and intake valve Pedestal have and can combine the 7th threaded portion of the 3rd threaded portion, and mutually abutted with the 7th threaded portion in the 3rd threaded portion Position ring be provided with the 4th packing ring, pedestal is also connected with the 8th larger screw part of an aperture, the 8th spiral shell in air chamber external end edge Conjunction portion, which is provided with one, has the swivel nut of inner bolt hole, and is provided with the 5th with the position ring that the swivel nut mutually abuts in the 8th screw part Packing ring.

The structure-improved of described decompression balance assembly, wherein：The check valve is by the first housing, the second housing and shell fragment institute Composition, wherein, the first housing provides the first flow in the first hole of connection, and second housing is connected to first shell, and with company The second flow channel of logical first flow, the shell fragment are locked on the first housing by bolt, to close first flow, and then separate First flow and second flow channel, the shell fragment can also be swung by balance pivot of bolt, so as to turn on first flow and Two runners.

The structure-improved of described decompression balance assembly, wherein：First housing is equipped with second that energy ammunition feed piece abuts Packing ring.

The structure-improved of described decompression balance assembly, wherein：The shell fragment is to splice to form with multilayer materials, the bullet Piece bottom edge is provided with the through hole that tug is worn for bolt, to be locked on the first housing by the bolt.

The structure-improved of described decompression balance assembly, wherein：The body protrudes the second spiral shell in the second outer end of hole ring-type Line portion, and the first housing is then provided with the ora terminalis of first flow one can combine the 4th threaded portion of the second threaded portion, and in first shell The position ring that body abuts body is provided with second packing ring, and then bifurcated has some breach to the first flow other end, and each Breach outer end is provided with shell fragment, and the first shell external week is also equipped with the 5th threaded portion below breach；Second housing is Two runner one end edge are provided with the 6th threaded portion that can combine the 5th threaded portion, to enable second flow channel to connect first flow.

The utility model provides a kind of structure-improved for depressurizing balance assembly, and its advantage has two：

First, the utility model is communicated with the air chamber inside crankcase in intake valve, and this air chamber external end edge is provided with swivel nut, The swivel nut is screwed with air inlet pipe, and controls ora terminalis system is airtight in air inlet pipe slide fit in air chamber, and piston is separately equipped with air chamber, And it is inner with spring start piston closing air inlet pipe, so as to which when air inlet pipe is moved along swivel nut and spiral shell, spring effect can be adjusted Piston closes the precompression of air inlet pipe, so with taken off in improvement patent case must external pressure regulator valve length and volume is excessive asks Topic, enables the utility model to be readily installed on engine chamber, and can improve the puzzlement of meeting gas leakage.

2nd, the utility model check valve is made up of the first housing, the second housing and shell fragment, wherein, the first housing provides The first flow inside crankcase is connected, second housing is connected to first shell, and has the second flow channel of connection first flow, The first housing is locked on by bolt as shell fragment, to close first flow outer end, reaches inside crankcase and makes a reservation for just During pressure, shell fragment can be promoted and turn on first and two runner the release of pressure that carries out, so to take off the knot of patent case check valve in improvement The shortcomings of structure is complicated, cost is high and pressure release is unhappy.

Brief description of the drawings

Fig. 1 is decomposing schematic representation of the present utility model.

Fig. 2 is combination schematic appearance of the present utility model.

Fig. 3 is the schematic diagram of the utility model check valve release of pressure.

Fig. 4 is the diagrammatic cross-section before the utility model intake valve pressure regulation.

Fig. 5 is the diagrammatic cross-section after the utility model intake valve pressure regulation.

Fig. 6 is the compensation pressure schematic diagram of Fig. 4 intake valves.

Fig. 7 is the compensation pressure schematic diagram of Fig. 5 intake valves.

Description of reference numerals：10 bodies；11 first holes；111 first threaded portions；12 second holes；121 second threaded portions；13 3rd hole；131 the 3rd threaded portions；14 joints；21 first packing rings；22 second packing rings；23 the 3rd packing rings；24 the 4th packing rings；25 Five packing rings；30 check valves；31 first housings；311 first flows；312 the 4th threaded portions；313 breach；314 the 5th threaded portions；32 Second housing；321 second flow channels；322 the 6th threaded portions；33 shell fragments；331 through holes；34 bolts；40 intake valves；41 pedestals；411 7th threaded portion；412 air chambers；413 discrimination roads；414 mesopores；415 the 8th screw parts；42 swivel nuts；421 inner bolt holes；43 air inlet pipe； 431 external screw threads；432 seal rings；44 nuts；45 pistons；451 piston parts；452 bar portions；453 approaching channels；46 springs；X1, X2 open row Journey.

Embodiment

Fig. 1 to Fig. 7 is refer to, the utility model comprises at least：

One body 10, it has the first hole 11, the second hole 12 and the 3rd hole 13 of threeway；First hole 11 has the first spiral shell Line portion 111, to the joint 14 that is spirally connected, the first hole 11 is set to be communicated to inside the crankcase of engine will pass through the joint 14, And the appropriate location that body 10 is abutted in joint 14 is provided with the first packing ring 21, keeps the air-tightness between body 10 and joint 14, makes The misgivings for not having leakage；As for the outer end of the second hole 12, then ring-type protrudes the second threaded portion 121, and the 3rd hole 13 then has 3rd threaded portion 131；

One check valve 30, it is installed on the second hole 12, during reaching predetermined malleation inside crankcase, can pass through the list To valve 30 and the release of pressure that carries out；The check valve 30 is mainly made up of the first housing 31, the second housing 32 and shell fragment 33, wherein, First housing 31 has the first flow 311 that runs through, and is provided with the ora terminalis of first flow 311 1 and can combine the second threaded portion 121 The 4th threaded portion 312, to enable first flow 311 to connect inside crankcase, and body 10 is abutted in first housing 31 Appropriate location is equipped with second packing ring 22, keeps the air-tightness between the housing 31 of body 10 and first, another as first flow 311 Then bifurcated has three breach 313 at end, and the periphery of the first housing 31 is more equipped with the 5th threaded portion 314 below breach 313； Foregoing second housing 32 then has the second flow channel 321 that runs through, and is provided with the ora terminalis of second flow channel 321 1 and can combine the 5th screw thread 6th threaded portion 322 in portion 314, to enable second flow channel 321 to connect first flow 311；It is then with multilayer as shell fragment 33 Composite, which splices, to be formed, and the bottom edge of shell fragment 33 is then provided with the through hole 331 that tug is worn for bolt 34, to be locked by the bolt 34 Located at the first housing 31, to the outer end of breach 313 of corresponding closing first flow 311 one by one, and then separate first flow 311 And second flow channel 321, but, when reaching predetermined malleation inside crankcase, shell fragment 33 can be promoted with bolt 34 for balance pivot The breach 313 for opening first flow 311 is swung, and then turns on satisfying to crankcase inside for first flow 311 and second flow channel 321 Row release of pressure, to provide recycling, illustrate herein, to enable the shell fragment 33 effectively to close breach 313, it is in breach 313 outer ends are equipped with the second packing ring 23 that energy ammunition feed piece 33 abuts；And

One intake valve 40, it, which has, is mounted on the pedestal 41 of body 10, and the pedestal 41 has and can combine the 3rd threaded portion 131 The 7th threaded portion 411, and be provided with the 4th packing ring 24 in position ring against each other, and the pedestal 41 is more arranged with gas in outer end Room 412, and the 3rd Kong13Qi roads 413 of some connections are equipped with the inner of air chamber 412, more it is provided with 412 inner center of air chamber One mesopore 414, the 8th larger screw part 415 of an aperture separately is equipped with the external end edge of air chamber 411, the 8th screw part 415 is then Being provided with one has the swivel nut 42 of inner bolt hole 421, and is provided with the 5th packing ring 25, foregoing inner bolt hole in position ring against each other 421 are screwed with one and have the hollow air inlet pipe 43 of external screw thread 431, to enable ora terminalis in air inlet pipe 43 to be moved by spiral shell to stretch into Air chamber 412, and have seal ring 432 in ora terminalis periphery build-in in the air inlet pipe 43, so that the airtight cunning of ora terminalis in the air inlet pipe 43 Assigned in air chamber 412, the nut 44 of the outer end of swivel nut 42 can be abutted by being then provided with one in 43 external screw thread of air inlet pipe, 431 another spiral shell, to fixed The position air inlet pipe 43, the unexpected loosening made；And piston 45 is additionally provided with air chamber 412, this piston 45 has energy slide fit air chamber 412 Piston part 451, and the bar portion 452 of slide fit mesopore 414, and some approaching channels 453 have been provided in the periphery of piston part 451, then with a bullet Spring 46 is sleeved on the periphery of bar portion 452, and abutting this one end of spring 46, air chamber 412 is inner, other end start piston part 451, such as Fig. 4 and Shown in Fig. 6, so that this piston part 451 has 43 inner gesture of closing air inlet pipe at any time, make the spring 46 that there is the effect envelope of piston 45 The precompression of air inlet pipe 43 is closed, when reaching setting negative pressure inside crankcase, the precompression can be overcome and open air inlet pipe 43, used To compensate crankcase internal pressure.

It please coordinate what Fig. 5 and Fig. 7 were seen, when we loosen nut 44, after, the rotation of tracheae 43 is rotated into, makes the air inlet pipe When 43 external screw threads 431 can move to fixed point along inner bolt hole 421 and downward spiral shell, it can adjust spring 46 and act on the closing air inlet of piston 45 The precompression of pipe 43, the precompression is diminished, when setting negative pressure to reach inside crankcase, the precompression can be overcome and opened Air inlet pipe 43 is opened, because the precompression system is small compared with Fig. 4, so its opening travel X2 can be compared with the opening travel X1 shown in Fig. 6 It is bigger, therefore the utility model can be directly by rotating screw cap 44 and air inlet pipe 43, to compensate the different pressures inside crankcase Power.

Therefore these configurations described in the utility model at least have the characteristics that：

First, the utility model can be by directly rotating the nut 44 and air inlet pipe 43 of intake valve 40, to compensate crankcase Internal different pressures, so to take off the length and volume problems of too of the external pressure regulator valve of patent case palpus in improvement, make this reality Engine chamber is readily installed on New Energy, and the puzzlement of meeting gas leakage can be improved.

2nd, carry out swing of the system of shell fragment 33 of the utility model check valve 30 with bolt 34 for balance pivot opens and closes first-class Road 311, these described respective outer side edges are enough to improve that to take off the complicated of patent case check valve, cost high and let out really Press the shortcomings that unhappy.

In summary, the utility model really can improve on take off many puzzlements of patent case, true is one quite outstanding and excellent Different design, and it is not found in publication or openly used, together in the application important document of new patent.Only as described above, is only this One preferred embodiment of utility model, when can not with restriction its practical range, i.e., it is generally special according to the present utility model application The equivalent changes and modifications that sharp scope is made, all should still it belong in the range of the utility model covers.

Claims

A kind of 1. structure-improved for depressurizing balance assembly, it is characterized in that comprising at least：

One body, it has the first hole, the second hole and the 3rd hole of threeway, and first hole can be communicated to inside crankcase；

One check valve, it is installed on body and the second hole of connection, can be by this during reaching predetermined malleation inside crankcase Check valve and the release of pressure that carries out；And

One intake valve, it has the pedestal for being mounted on body, and the pedestal is communicated with the air chamber in the 3rd hole, and in air chamber external end edge Being provided with one has the swivel nut of inner bolt hole, and the inner bolt hole, which is screwed with one, has externally threaded hollow air inlet pipe, air inlet pipe the inner Edge can be moved and airtight slide fit in air chamber by spiral shell；Piston is equipped with air chamber, and with spring start piston closing air inlet pipe The inner, spiral shell of the air inlet pipe along inner bolt hole move the precompression that can adjust spring effect piston closing air inlet pipe.
2. the structure-improved of decompression balance assembly as claimed in claim 1, it is characterised in that：The air inlet pipe also spiral shell is provided with an energy The nut of swivel nut is abutted, to position the air inlet pipe.
3. the structure-improved of decompression balance assembly as claimed in claim 1 or 2, it is characterised in that：In the air inlet pipe outside ora terminalis All build-ins have seal ring, with so that the airtight slide fit of ora terminalis in air inlet pipe is in air chamber.
4. the structure-improved of decompression balance assembly as claimed in claim 3, it is characterised in that：The pedestal is also set in air chamber the inner There are the 3rd Kong Qi roads of some connections, a mesopore is provided with air chamber the inner center, and piston has the piston part of energy slide fit air chamber, with And the bar portion of slide fit mesopore, and some approaching channels have been provided in piston part periphery, a spring housing supports together in bar portion periphery, the spring one end Air chamber the inner, other end start piston part are connect, makes the piston part that there is the inner movement tendency of closing air inlet pipe at any time.
5. the structure-improved of decompression balance assembly as claimed in claim 3, it is characterised in that：The hole of body the 3rd has the 3rd Threaded portion, and the pedestal of intake valve has can combine the 7th threaded portion of the 3rd threaded portion, and the 3rd threaded portion and this The position ring that seven threaded portions mutually abut is provided with the 4th packing ring, and pedestal is also connected with larger the 8th in an aperture in air chamber external end edge Screw part, the 8th screw part, which is provided with one, has the swivel nut of inner bolt hole, and is mutually abutted with the swivel nut in the 8th screw part Position ring be provided with the 5th packing ring.
6. the structure-improved of decompression balance assembly as claimed in claim 1, it is characterised in that：The check valve by the first housing, Second housing and shell fragment are formed, wherein, the first housing provides the first flow in the first hole of connection, and second housing is connected to First shell, and with the second flow channel of connection first flow, the shell fragment is locked on the first housing by bolt, to close the One runner, and then separation first flow and second flow channel, the shell fragment can also be swung by balance pivot of bolt, so as to lead Logical first flow and second flow channel.
7. the structure-improved of decompression balance assembly as claimed in claim 6, it is characterised in that：First housing is equipped with and can supplied The second packing ring that shell fragment abuts.
8. the structure-improved of decompression balance assembly as claimed in claims 6 or 7, it is characterised in that：The shell fragment is answered with multilayer Condensation material, which splices, to be formed, and the shell fragment bottom edge is provided with the through hole that tug is worn for bolt, to be locked on the first housing by the bolt.
9. the structure-improved of decompression balance assembly as claimed in claims 6 or 7, it is characterised in that：The body is in outside the second hole End ring shape protrudes the second threaded portion, and the first housing is then provided with the ora terminalis of first flow one can combine the 4th of the second threaded portion Threaded portion, and the position ring for abutting in the first housing body is provided with second packing ring, then bifurcated has for the first flow other end Some breach, and shell fragment is installed in each breach outer end, and the first shell external week is also equipped with the 5th spiral shell below breach Line portion；Second housing is provided with the 6th threaded portion that can combine the 5th threaded portion in the ora terminalis of second flow channel one, to make second flow channel First flow can be connected.