CN203450302U

CN203450302U - Hydraulic disc brake with valve

Info

Publication number: CN203450302U
Application number: CN201320532688.9U
Authority: CN
Inventors: 张小红; 张羽
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-27
Filing date: 2013-08-27
Publication date: 2014-02-26
Anticipated expiration: 2023-08-27
Also published as: TWM516555U

Abstract

The utility model discloses a hydraulic disc brake with a valve. The oil cylinder of an upper pump body (1) is provided with a ring groove for placing an upper pump sealing ring (15) and a hole for mounting a valve core (6); an upper pump piston (8) is a cylinder; the valve core (6) maintains the oil path to be normally open; the motion of the upper pump piston (8) exerts pressure on the valve core (6) to close the oil path valve; a handle seat (2) and a handle (3) are detachably connected, and the angles of the handle (3) can be adjusted; an oil discharge column (16) occupies the volume and reduces oil quantity; each cylinder of a big pump body (20) and a small pump body (21) is provided with two holes, and the holes at two sides in mirror correspondence to each other; gaps between a communication screw (17), the big pump body (20) and the small pump body (21) form passages for brake oil flow. The hydraulic disc brake with a valve has the advantages of reducing oil leakage possibilities of the hydraulic disc brake, saving materials, and reducing consumer maintenance troubles.

Description

Hydraulic disc brake with valve

Technical field

The utility model relates to the oil pressure disc formula brake using in bicycle, Electrical Bicycle and motor bike, is called for short hydraulic disc brake.

Background technology

Bicycle, Electrical Bicycle and motor bike are widely used hydraulic disc brake, the parts of these vehicle indispensabilities, at present conventional hydraulic disc brake is due to the reason of project organization and manufacture, easily produce following deficiency: the one,, the upper pump easy oil leakage of hydraulic disc brake at present, reason is that the upper pump of the hydraulic disc brake of open by design has two movable rubber seal, and during work, these two seal rings do not stop to move back and forth wearing and tearing and stress deformation always, fragile; Oil circuit and outside are only every simple 0 RunddichtringO or trumpet type seal ring, like this easy oil leakage.The 2nd,, the length after the in-oil cylinder coil spring of upper pump casing self compression, causes upper pump casing height can not subtract.The 3rd,, owing to regulating the General Construction of handle angle to cause at least 5 millimeter height can not subtract.The 4th,, because brake solution thermal expansion coefficient is larger, should reduce the total oil mass in brake fluid line as far as possible, some products are ignored this problem.The 5th,, the oil circuit that general hydraulic disc brake adopts is reasonable not, so that the own maintenance and repair difficulty of customer, only changes oil and just becomes a technical profession, it is indefinite that ordinary consumer oneself does, and often easily residual air in oil cylinder.

Utility model content

The deficiency existing for above-mentioned existing technology, the hydraulic disc brake object of the utility model band valve is to provide a kind of hydraulic disc brake of open oil circuit, makes the seal ring life-span longer more not fragile, improves the deficiency of easy oil leakage; Reduce the height of upper pump casing; Reduce total oil mass; Simplify the step of refueling and changing oil, prevent air residual.

It is such realizing the technical solution of the utility model: this is a kind of hydraulic disc brake with valve, comprise upper pump casing, handle base, handle, oil-storing cup, setting nut, governing screw, valve core, spring leaf, upper pump piston, upper pump spring, round end fore-set, upper pump pin, upper pump gland, oil extraction post, be communicated with screw, exterior seal ring, inner seal ring, the large pump housing and the little pump housing, the oil har opening of upper pump casing is a circular deep hole, on hole wall, have the circumferential groove of pump gland in or two placements, through hole or the screw hole of one mounted valve core arranged at hole wall side or bottom, hole, upper pump piston is cylinder, and there is a semicircle ball-type shrinkage pool one end, and the other end has a circular blind hole, and this blind hole is used for placing pump spring, valve core, under state of nature, keeps leading to the oil circuit normally open of oil-storing cup, when upper pump piston one motion, valve core is produced pressure and closes oil circuit valve, the nose section of handle base one end limited location effect, the other end is connected with handle is detachable, by setting nut and governing screw, the angle of handle is regulated, one end being connected with handle base of round end fore-set is T font, and the other end withstanding on pump piston is ball head dummy, or its two ends are all ball head dummy, and immediate roof is between upper pump piston and handle base: oil extraction post ties up volume in oil circuit, reduces total oil mass, in the oil cylinder of the large pump housing, there are two holes, corresponding with two aperture mirror pictures in the oil cylinder of the little pump housing, the distance in its in-oil cylinder two holes is between 0.01 millimeter to 9 millimeters scope, and in the oil cylinder of the large pump housing, a hole is filler port, and another hole is oil outlet and is communicated in little pump housing oil cylinder, being communicated with screw tightens together the large pump housing and the little pump housing, simultaneously under the condition of exterior seal ring and inner seal ring sealing, the gap being communicated with between screw and the large little pump housing of the pump housing forms a path that brake solution is mobile, or built-in metal tubule, leaves passage when the large pump housing and the little pump housing are cast in die casting.

There is level and smooth chamfering one end contacting with valve core of upper pump piston, and capable of reducing friction resistance is convenient to valve core to promote.Valve core is subject to the pressure of spring leaf under state of nature, and the oil circuit that leads to oil-storing cup is often opened, and is embedded with the small rubber circle of sealing use on valve core.Oil extraction post is arranged on the inside of pump spring.

This is a kind of hydraulic disc brake of open oil circuit, adopts the structure of valve in upper pump casing, has removed the seal ring of reciprocal activity, and has used actionless seal ring; Use hollows out the mode of piston and adopts sectional type adjustable handlebar; Adopt oil extraction post to tie up volume, adopt the corresponding diplopore oil circuit of mirror image.

The beneficial effects of the utility model are: with respect to the hydraulic disc brake generally using at present, reduced the possibility of leakage of oil, the height that has reduced upper pump has alleviated weight, has saved material and brake solution, has reduced the trouble of customer's working service.

Accompanying drawing explanation

Accompanying drawing explanation below:

Fig. 1 is the three-dimensional exploded view of a specific embodiment of the hydraulic disc brake of the utility model band valve.

Fig. 2 and Fig. 3 are two sectional structural maps of a specific embodiment.

Fig. 4 is the sectional structural map of another specific embodiment of the present utility model, and the valve of oil cylinder and oil-storing cup is at bottommost.

Fig. 5 and Fig. 6 are installation cutaway view and the three-dimensional exploded views of the little pump housing of the large pump housing of the present utility model.

Fig. 7 Fig. 8 and Fig. 9 are constructing stereo exploded view, front elevation and the cutaway views of alternative valve of the present utility model.

Figure 10 and Figure 11 are front elevation and the cutaway views of the third valve core of the present utility model, are further illustrating Fig. 4.

Figure 12 is the local amplification view of the valve in a specific embodiment of the present utility model.

Figure 13 is the oil circuit schematic diagram of the little pump housing of the large pump housing of the present utility model.

Figure 14 and Figure 15 are the oil-hole location figure of the little pump housing of the large pump housing of the present utility model.

The specific embodiment

Below in conjunction with implementing, the utility model is described in further detail.

Shown in Fig. 1, it is the three-dimensional exploded view of a specific embodiment of the hydraulic disc brake of the utility model band valve, in conjunction with Fig. 2 and Fig. 3, be described as follows: when the staff handle 3 of holding with a firm grip, handle 3 drives round end fore-set 10 down to press pump piston 8, upper pump piston 8 once motions, overcome the resistance of upper pump spring 9, just promote valve core 6 toward outside mobile, just the oil circuit that leads to oil-storing cup 1.1 is closed, at this moment whole oil circuit just forms closing oil path, when the staff handle 3 that continues to hold with a firm grip, just pressure is passed to lower pump body by oil pipe, lower pump body is by the large pump housing 20, the little pump housing 21, be communicated with screw 17, exterior seal ring 18, inner seal ring 19 and other disclosed conventional parts form, the lower pump body of pressurized is just released friction lining and is carried out braking brake.When under static state of nature, valve core 6 is subject to the pressure of spring leaf 7, and the oil circuit that leads to oil-storing cup 1.1 is often opened, and whole oil circuit and air environment are only every a serum cap 12, form open system, oil and the oil in oil cylinder of being convenient to 1.1 li of oil-storing cups carry out intercommunication.

From this specific embodiment, can find out, there is not movable seal ring in the utility model, and upper pump gland 15 is arranged in the circumferential groove on upper pump casing 1 hole wall, if enhanced leaktightness can adopt two seals circle, greatly improved leak tightness.

Fig. 3 shows: the oil har opening of upper pump casing 1 is a circular deep hole, on hole wall, have the circumferential groove of pump gland 15 in or two placements, there is through hole or the screw hole of a mounted valve core 6 hole wall side, certainly mounted valve core 6 holes is moved on to bottommost and also can play the same function.Fig. 4 is the sectional structural map of another specific embodiment of the present utility model, and the valve of oil cylinder and oil-storing cup is at bottommost.Figure 10 and Figure 11 are to the further illustrating of Fig. 4, and are front elevation and the cutaway views that is contained in bottommost valve core, and the tip of needle is embedded with rubber ring.

Fig. 7 Fig. 8 and Fig. 9 are constructing stereo exploded view, front elevation and the cutaway views of alternative valve of the present utility model.This valve is arranged on thread forms in the hole wall side screw hole of oil har opening of upper pump casing 1, has rubber ring on valve core, and its afterbody is equipped with an elastic body.

Fig. 1 and Fig. 2 explanation: the nose section of handle base 2 one end limited location effects blocks upper pump casing 1, and the other end and handle 3 removably connect, regulates by the angle of setting nut 4 and 5 pairs of handles 3 of governing screw; Upper pump pin 11 and connecting pin 14 are only fixed for pin joint.

Fig. 2 is T font with one end that the round end fore-set 10 shown in Fig. 3 is connected with handle base 2, and the other end withstanding on pump piston 8 is ball head dummy; Or its two ends are all ball head dummy, and immediate roof is between upper pump piston 8 and handle base 2.

Fig. 3 has expressed the position of serum cap 12, enclosing cover 13 and oil extraction post 16, and oil extraction post 16 is arranged on the inside of pump spring 9, ties up volume in oil circuit, has reduced oil mass.

Fig. 5 and Fig. 6 are installation cutaway view and the three-dimensional exploded views of the little pump housing 21 of the large pump housing 20.Figure 13 is the oil circuit schematic diagram of the little pump housing 21 of the large pump housing 20.Figure 14 and Figure 15 are the oil-hole location figure of the little pump housing 21 of the large pump housing 20.In conjunction with these five figure, illustrate in the oil cylinder of the large pump housing 20 and have two holes, corresponding with two aperture mirror pictures in the oil cylinder of the little pump housing 21, the distance in its in-oil cylinder two holes is between 0.01 millimeter to 9 millimeters scope; In the oil cylinder of the large pump housing 20, a hole is filler port, and another hole is oil outlet and is communicated in the little pump housing 21 oil cylinders; Being communicated with screw 17 tightens together the large pump housing 20 and the little pump housing 21, simultaneously under the condition of exterior seal ring 18 and inner seal ring 19 sealings, the gap being communicated with between screw 17 and the large little pump housing 21 of the pump housing 20 forms a path that brake solution is mobile, or built-in metal tubule, leaves passage when the large pump housing 20 and the little pump housing 21 are cast in die casting.In the large opening design that can fast change friction lining, cannot process the corresponding diplopore asphalt channel of mirror image by simple processing technology and come especially, just can adopt above-mentioned two methods.

In conjunction with Figure 13, be described as follows again: in the corresponding diplopore oil circuit of mirror image, the distance in each in-oil cylinder two hole is more closely better, but can not overlap; The position mirror image degree of correspondence in the hole of the large pump housing 20 and the little pump housing 21 is more precisely better.When the position in hole, refuel or change oil during in positive top, just can reduce largely the residual of air.

Figure 12 is the local amplification view of the valve in a specific embodiment of the present utility model, is embedded with the small rubber circle 6.1 of sealing use on valve core 6.

Finally be noted that: upper pump piston 8 is cylinder, and there is a semicircle ball-type shrinkage pool one end, and the other end has a circular blind hole, and this blind hole is used for placing pump spring 9; There is level and smooth chamfering one end contacting with valve core 6 of upper pump piston 8, and capable of reducing friction resistance is convenient to valve core 6 to promote.

Claims

1. the hydraulic disc brake with valve, comprise upper pump casing (1), handle base (2), handle (3), oil-storing cup (1.1), setting nut (4), governing screw (5), valve core (6), spring leaf (7), upper pump piston (8), upper pump spring (9), round end fore-set (10), upper pump pin (11), upper pump gland (15), oil extraction post (16), be communicated with screw (17), exterior seal ring (18), inner seal ring (19), the large pump housing (20) and the little pump housing (21), it is characterized in that: the oil har opening of described upper pump casing (1) is a circular deep hole, on hole wall, have the circumferential groove of pump gland (15) in or two placements, through hole or the screw hole of one mounted valve core (6) arranged at hole wall side or bottom, hole, described upper pump piston (8) is cylinder, and there is a semicircle ball-type shrinkage pool one end, and the other end has a circular blind hole, and this blind hole is used for placing pump spring (9), described valve core (6), under state of nature, keeps leading to the oil circuit normally open of oil-storing cup (1.1), when upper pump piston (8) one motions, valve core (6) is produced squeese pressure and closes oil circuit valve, the nose section of described handle base (2) one end limited location effect, the other end and detachable connection of handle (3), regulate the angle of handle (3) by setting nut (4) and governing screw (5), one end that described round end fore-set (10) is connected with handle base (2) is T font, the other end withstanding on pump piston (8) is ball head dummy, or its two ends are all ball head dummy, immediate roof is between upper pump piston (8) and handle base (2), described oil extraction post (16) ties up volume in oil circuit, reduces total oil mass, in the oil cylinder of the described large pump housing (20), there are two holes, corresponding with two aperture mirror pictures in the oil cylinder of the little pump housing (21), the distance in its in-oil cylinder two holes is between 0.01 millimeter to 9 millimeters scope, in the oil cylinder of the large pump housing (20), a hole is filler port, and another hole is oil outlet and is communicated in the little pump housing (21) oil cylinder, described connection screw (17) tightens together the large pump housing (20) and the little pump housing (21), simultaneously under the condition of exterior seal ring (18) and inner seal ring (19) sealing, the gap being communicated with between screw (17) and the large little pump housing of the pump housing (20) (21) forms a path that brake solution is mobile, or built-in metal tubule, leaves passage when the large pump housing (20) and the little pump housing (21) are cast in die casting.

2. the hydraulic disc brake with valve according to claim 1, is characterized in that: described upper pump piston (8) has level and smooth chamfering with one end that valve core (6) contacts, and capable of reducing friction resistance is convenient to valve core (6) to promote.

3. the hydraulic disc brake with valve according to claim 1, it is characterized in that: described valve core (6) is subject to the pressure of spring leaf (7) under state of nature, and the oil circuit that leads to oil-storing cup (1.1) is often opened, on valve core (6), be embedded with the small rubber circle (6.1) of sealing use.

4. the hydraulic disc brake with valve according to claim 1, is characterized in that: described oil extraction post (16) is arranged on the inside of pump spring (9).