CN206845580U - A kind of hydraulic booster - Google Patents

Abstract

The utility model is related to a kind of hydraulic booster, it includes oil cylinder, the oil cylinder both ends are respectively equipped with oil inlet and oil-out, piston rod and piston are provided with cylinder, and piston rod right side is the tubular structure of inner hollow, fuel feed hole and oil outlet are offered on tubular structure, the fuel feed hole and oil outlet are distributed in piston both sides；Slided in tubular structure and be provided with push rod, the left end of the push rod is installed with the briquetting for blocking fuel feed hole, and right-hand member connects with foot-operated；Boss is fixedly provided with the inwall of tubular structure, the first elastic component is provided between the boss and briquetting；One or more relief holes are offered on piston.The utility model is simple in construction, multiple functional, a set of system of self-contained, has the advantages of cost ineffective fruit is good.Pressure relief device is set on piston, does not increase equipment volume, it is easy to operate, and the mesh for the oil pressure for making the utility model hydraulic booster can adapt to vehicle self-carrying can be realized.

Description

A kind of hydraulic booster

Technical field

It the utility model is related to booster field, and in particular to a kind of hydraulic booster.

Background technology

There is the hydraulic booster of part special purpose on the market at present, the mesh of power-assisted is generally reached using single hydraulic jack , but it can not provide force feedback for pedal or handle, and operating personnel are difficult to grasp operation.And these single hydraulic jacks are only Original position and final position can be provided, it is impossible to stop among realizing in optional position, for example clutch can not realize semi-linkage Clutch, if brake, it is impossible to provide different braking strengths according to the size of pedal strength.Particularly once because of mechanical breakdown When losing oil pressure, plant equipment would be at stuck state, easily cause serious consequence.

The content of the invention

The purpose of this utility model is to provide a kind of novel hydraulic booster for solving above-mentioned technological deficiency.

8th, the purpose of this utility model and to solve its technical problem realized using following technical scheme.According to this A kind of hydraulic booster that utility model proposes, it includes oil cylinder 1, and the both ends of oil cylinder 1 are respectively equipped with oil inlet 7 and oil-out 8, Piston rod 2 and piston 3 are provided with cylinder, and the right side of piston rod 2 is the tubular structure of inner hollow, is offered on the tubular structure Fuel feed hole 9 and oil outlet 10, the fuel feed hole 9 and oil outlet 10 are distributed in the both sides of piston 3；Slided in the tubular structure and be provided with top Bar 4, the left end of the push rod 4 are installed with the briquetting 6 for blocking fuel feed hole 9, and right-hand member connects with foot-operated 12；The tubular structure Boss 5 is fixedly provided with inwall, the first elastic component 11 is provided between the boss 5 and briquetting 6；One is offered on the piston 3 Or multiple relief holes 13.

The purpose of this utility model and solve its technical problem can also be using following technical measures come further real It is existing.

Foregoing hydraulic booster, wherein close on briquetting 6 by being fixed between the briquetting 6 and tubular structure inwall Packing seals.

Foregoing hydraulic booster, wherein the arrival end size of described relief hole 13 is less than the port of export, its port of export is nibbled Conjunction has cored screw 16, and arrival end closure has ball 14, and the cored screw is pressed on ball 14 by the second elastic component 15, and empty Spring base 17 is provided between the elastic component 15 of heart screw 16 and second.

Foregoing hydraulic booster, wherein being provided with seal between described ball 14 and relief hole arrival end.

Foregoing hydraulic booster, its second wherein described elastic component 15 is spring.

Foregoing hydraulic booster, wherein being provided with sealing ring between described push rod 4 and the inwall of the tubular structure port of export.

Foregoing hydraulic booster, wherein the first described elastic component 11 is stage clip.

The utility model has clear advantage and beneficial effect compared with prior art.By above-mentioned technical proposal, sheet Utility model hydraulic booster can reach suitable technological progress and practicality, and have the extensive value in industry, It at least has following features：

The utility model opens up oilhole on the piston rod, realizes that the oil circuit of piston both sides communicates；Then set in piston rod There is the push rod by riding control action, set the briquetting of closure fuel feed hole in mandrel ends, realize the blocking of piston both sides oil circuit. When oil circuit blocks so that oil pressure rise promotes piston movement in oil suction chamber, while piston rod, push rod also start shipment with piston one It is dynamic, realize power-assisted purpose；When oil circuit communicates, piston both sides oil pressure balance, under the elastic force effect of clutch control lever, piston Bar drives piston reset.

To prevent that oil pressure is too high in oil cylinder, the utility model sets pressure regulation, pressure relief device on piston, when on vehicle piston by When the pressure arrived exceedes the setting pressure of pressure relief device, pressure relief device starts pressure release work, to prevent cylinder body because oil pressure is too high It is impaired.The setting of the pressure relief device causes the utility model hydraulic booster to can adapt to the oil pressure of vehicle self-carrying, without adding again Add extra pressure relief device.

To sum up, the utility model is simple in construction, multiple functional, a set of system of self-contained, has the advantages of cost ineffective fruit is good. And pressure relief device is set on piston, and do not increase equipment volume, it is easy to operate, and can realize and enable the utility model hydraulic booster The purpose of the oil pressure of vehicle self-carrying is enough adapted to, solving needs to set up in the prior art pressure regulation, relief valve in power-assisted chamber with suitable The problem of answering vehicle self-carrying oil pressure.In addition the utility model booster piston bar and foot-operated synchronization action, are avoided that hydraulic system Go wrong generation that is stuck and causing dangerous situation, more securely and reliably.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model embodiment,

Fig. 2 is Fig. 1 part A enlarged drawing.

【Main element symbol description】

1：Oil cylinder

2：Piston rod

3：Piston

4：Push rod

5：Boss

6：Briquetting

7：Oil inlet

8：Oil-out

9：Fuel feed hole

10：Oil outlet

11：First elastic component

12：It is foot-operated

13：Relief hole

14：Ball

15：Second elastic component

16：Cored screw

17：Spring base

Embodiment

Further to illustrate that the utility model is to reach the technological means and effect that predetermined goal of the invention taken, below With reference to accompanying drawing and preferred embodiment, to according to the utility model proposes hydraulic booster its embodiment, structure, feature And its effect, describe in detail as after.

Fig. 1 and Fig. 2 are referred to, it is a kind of structural representation of hydraulic booster of the utility model, the hydraulic booster Including oil cylinder 1, the both ends of oil cylinder 1 are respectively equipped with oil inlet 7 and oil-out 8, input and output for hydraulic oil.

Slidable fit has the piston rod 2 that cylinder body is stretched out at both ends, the periphery wall upper sleeve gasket of the piston rod 2 in the oil cylinder 1 Provided with piston 3.The left end of the piston rod 2 connects with the controller of clutch, right side be inner hollow tubular structure, the cylinder Fuel feed hole 9 and oil outlet 10 are offered on the wall body of shape structure respectively, the fuel feed hole 9 and oil outlet 10 are located at 3 liang of piston respectively Side, the oil entered by oil inlet 7 in the left side cavity body of oil cylinder 1 can pass sequentially through fuel feed hole 9, tubular structure inner chamber and oil outlet 10 Into the right side cavity of oil cylinder 1.

Slided in the tubular structure and be provided with push rod 4, the left end of the push rod 4 is installed with the briquetting for blocking fuel feed hole 9 6, right-hand member connects with foot-operated 12.Sealing ring is provided between the push rod 4 and the inwall of tubular structure end.

Boss 5 is installed with the tubular structure inwall, the first elastic component 11 is provided between the briquetting 6 and boss 5.Compared with Good, first elastic component 11 is stage clip, but is not limited to this.By solid between the briquetting 6 and tubular structure inwall The sealing gasket sealing being scheduled on briquetting 6, when elastic component is compressed, briquetting 6 blocks fuel feed hole 9, blocks oil circuit.

In the utility model embodiment, one or more relief holes 13 are offered on the piston 3.The relief hole 13 Arrival end size be less than the port of export, arrival end closure has ball 14, and the port of export is engaged with cored screw 16, the hollow spiral shell Silk 16 compresses ball 14 by the second elastic component 15, and is provided with spring base 17 between the elastic component 15 of cored screw 16 and second. Preferably, the arrival end is provided with seal with the contact position of ball 14, but it is not limited to this.Preferably, second elasticity Part 15 is spring, but is not limited to this.

The utility model hydraulic booster pull-up foot-operated 12, the first elastic component 11 is compressed by push rod 4, blocks briquetting 6 Fuel feed hole 9, oil circuit block so that the hydraulic oil entered by oil inlet 7 in oil suction chamber cannot be introduced into be connected with oil-out it is fuel-displaced Chamber, so as to cause oil suction chamber pressure rise, piston 3 and piston rod movement are promoted, and then promote the control-rod of clutch, clutch In clutch state, reach the purpose of power-assisted.When unclamping foot-operated 12, briquetting 6 replys original in the presence of the first elastic component 11 Position, the oil circuit that now oil suction chamber and oil outlet chamber are blocked is unimpeded, the pressure balance of the both sides of piston 3, in the bullet of clutch control lever Under power effect, piston 3 resets, and clutch is in non-clutch state.

When hydraulic system goes wrong, foot-operated 12 motion directly can be transferred to clutch control lever by push rod 4, be realized To the control of clutch under non helping hand state, stuck situation is avoided.

Under oil circuit blocking state, when the hypertonia of oil suction chamber, more than relief hole 13 setting pressure when, ball moves Open, start pressure release, cause cylinder body to be damaged to prevent in cylinder body that oil pressure is too high so that the booster can adapt to the original oil of vehicle Pressure.

The utility model is applicable not only to vehicle clutch power-assisted, while is also applied for the need of brake power-assisted or other forms Want the mechanism of hydraulic booster.

It is described above, only it is preferred embodiment of the present utility model, not the utility model is done any formal Limitation, although the utility model is disclosed above with preferred embodiment, but be not limited to the utility model, it is any ripe Professional and technical personnel is known, is not being departed from the range of technical solutions of the utility model, when in the technology using the disclosure above Hold the equivalent embodiment made a little change or be modified to equivalent variations, as long as being without departing from technical solutions of the utility model Hold, according to the technical essence of the utility model to any simple modification, equivalent change and modification made for any of the above embodiments, still Belong in the range of technical solutions of the utility model.

Claims (7)

1. a kind of hydraulic booster, it includes oil cylinder (1), and oil cylinder (1) both ends are respectively equipped with oil inlet (7) and oil-out (8), Piston rod (2) and piston (3) are provided with cylinder, and is the tubular structure of inner hollow on the right side of piston rod (2), it is characterised in that：

Fuel feed hole (9) and oil outlet (10) are offered on the tubular structure, the fuel feed hole (9) and oil outlet (10) are distributed in work Fill in (3) both sides；

Slided in the tubular structure and be provided with push rod (4), the left end of the push rod (4) is installed with the pressure for blocking fuel feed hole (9) Block (6), right-hand member connect with foot-operated (12)；

Boss (5) is fixedly provided with the inwall of the tubular structure, the first elastic component is provided between the boss (5) and briquetting (6) (11)；

One or more relief holes (13) are offered on the piston (3).

2. hydraulic booster according to claim 1, it is characterised in that：Wherein described briquetting (6) and tubular structure inwall Between sealed by the sealing gasket that is fixed on briquetting (6).

3. hydraulic booster according to claim 1, it is characterised in that：The arrival end chi of wherein described relief hole (13) Very little to be less than the port of export, its port of export is engaged with cored screw (16), and arrival end closure has a ball (14), and the cored screw passes through the Two elastic components (15) are pressed on ball (14), and spring base (17) is provided between cored screw (16) and the second elastic component (15).

4. hydraulic booster according to claim 3, it is characterised in that：Wherein described ball (14) and relief hole entrance Seal is provided between end.

5. hydraulic booster according to claim 3, it is characterised in that：Wherein described the second elastic component (15) is bullet Spring.

6. hydraulic booster according to claim 1, it is characterised in that：Wherein described push rod (4) goes out with tubular structure Sealing ring is provided between the inwall at mouth end.

7. hydraulic booster according to claim 1, it is characterised in that：Wherein described the first elastic component (11) is pressure Spring.