TWI391286B - Linked brake system - Google Patents

Description

Linked brake system

The present invention relates to a linked brake system, and more particularly to a linked brake system that is simple in construction and enhances operational safety.

In general, some locomotives are currently equipped with interlocking brakes to provide the function of interlocking brakes. For example, the Republic of China Invention Patent Publication No. 200918406 discloses a conventional interlocking brake device.

However, such conventional linkage brake devices have a large number of parts and a complicated structure, which results in considerable manufacturing costs.

The present invention basically employs the features detailed below in order to solve the above problems. That is, the present invention includes a fixed seat; a first brake operating lever is coupled to the fixed seat in a rotating manner; a link having a first end and a second end, wherein the first end Relative to the second end, and connected to the first brake operating lever in a rotating manner; a brake master cylinder having an oil chamber and a plunger, wherein the plunger is disposed in the moving manner In the oil chamber, and the oil chamber is equipped with brake oil; a brake caliper is connected to the oil chamber of the brake master cylinder; a push rod is connected to the brake master cylinder in a rotating manner and is abutted The plunger is configured to drive the plunger to move into the oil chamber; a second brake operating lever is rotatably coupled to the brake master cylinder and is detachably coupled to the pusher a rod for driving the push rod to rotate; a drum brake device having a brake rocker arm; a sleeve abutting between the second end of the link and the drum brake device; and a wire Passing through the sleeve and connecting to the push rod and the drum brake device Between the rocker arm brake.

Meanwhile, according to the interlocking brake system of the present invention, the second brake operating lever has an abutting portion, and the abutting portion abuts the push rod in a detachable manner.

In the present invention, the brake master cylinder further has an extension resisting portion, and the wire is connected to the push rod through the extension resisting portion.

In the present invention, the linkage braking system further includes a pull rod connected between the push rod and the wire, and is detachably abutted against the extending resisting portion.

In the present invention, the push rod is coupled to the pull rod in a rotating and moving manner.

In the present invention, the drum brake device further has a positioning seat, and the sleeve is abutted between the second end of the connecting rod and the positioning seat.

The above described objects, features and advantages of the present invention will become more apparent from the description of the appended claims.

The preferred embodiment of the invention is described in conjunction with the drawings.

Referring to FIG. 1 , FIG. 2 , FIG. 3 , and FIG. 4 , the interlocking braking system 100 of the present embodiment is suitable for use in a locomotive, and mainly includes a fixing base 110 and a first braking operation lever 121 . A connecting rod 130, a brake master cylinder 140, a brake caliper 150, a push rod 160, a second brake operating lever 122, a pull rod 170, a drum brake device 180, a sleeve 190 and a wire 195.

The fixing base 110 may be disposed on one of the frames F of the locomotive.

The first brake operating lever 121 is coupled to the fixed base 110 in a rotational manner.

The connecting rod 130 has a first end 131 and a second end 132. The first end 131 is opposite to the second end 132, and the first end 131 is coupled to the first brake lever 121 in a rotational manner.

The brake master cylinder 140 may also be disposed above the frame F of the locomotive, and the brake master cylinder 140 has an oil chamber 141, a plunger 142 and an extension resisting portion 143. The plunger 142 is disposed in the oil chamber 141 in a moving manner, and the oil chamber 141 contains brake oil (not shown).

The brake caliper 150 is communicated to the oil chamber 141 of the brake master cylinder 140 via a tubing 196. Here, the brake caliper 150 may be selectively disposed on one of the wheels of the locomotive.

One end of the push rod 160 is rotatably coupled to the brake master cylinder 140, and the push rod 160 is a plunger 142 that abuts against the brake master cylinder 140, which can be used to drive the plunger 142 to move to the oil chamber of the brake master cylinder 140. 141.

The second brake operating lever 122 is coupled to the brake master cylinder 140 in a rotational manner, and the second brake operating lever 122 is detachably coupled to the push rod 160, which can be used to drive the push rod 160 to rotate. In more detail, the second brake operating lever 122 has an abutting portion 122a, and the abutting portion 122a is detachably abutted against the push rod 160.

The pull rod 170 is detachably abutted against the extension resisting portion 143 of the brake master cylinder 140, and the other end of the push rod 160 is connected to the pull rod 170 by rotation and movement. More specifically, the tie rod 170 has a long hole 171, and the other end of the push rod 160 is rotatable and movable in the long hole 171.

The drum brake device 180 has a brake rocker arm 181 and a positioning seat 182.

The sleeve 190 abuts between the second end 132 of the link 130 and the positioning seat 182 of the drum brake device 180. Here, the sleeve 190 is made of a material having moderate rigidity.

The wire 195 is threaded into the sleeve 190, and the wire 195 is connected between the push rod 160 and the brake rocker arm 181 of the drum brake device 180. More specifically, the wire 195 is penetrated by the extended abutment portion 143 of the brake master cylinder 140 and connected to the push rod 160 by the tie rod 170.

Next, the operation mode of the linked brake system 100 will be described.

When the second brake operating lever 122 is operated to rotate, the abutting portion 122a of the second brake operating lever 122 drives the push rod 160 to rotate, thereby driving the plunger 142 to move in the oil chamber 141 of the brake master cylinder 140. Establish a brake oil pressure, as shown in Figure 2. At this time, the brake oil pressure is transmitted to the brake caliper 150 via the oil pipe 196, thereby driving the brake caliper 150 to generate a braking effect.

On the other hand, when the first brake operating lever 121 is operated to rotate, the link 130 moves as the first brake operating lever 121 rotates, thereby pulling the sleeve 190 as shown in FIG. Here, since the total length of the wire 195 is fixed, the pulled sleeve 190 forces the wire 195 to simultaneously pull the tie rod 170 and the brake rocker arm 181 of the drum brake device 180. At this time, the pulled lever 170 will move (to the left), thereby driving the push rod 160 to rotate to drive the plunger 142 to move in the oil chamber 141 of the brake master cylinder 140 to establish the brake oil pressure. At the same time, the pulled rocker arm 181 will rotate. As described above, when the first brake operating lever 121 is operated, the brake caliper 150 and the drum brake device 180 can simultaneously generate the brake braking effect.

In addition, it is worth noting that even if the oil pipe 196 or the brake caliper 150 has a brake oil leakage, the interlocking brake system 100 can provide a certain degree of brake braking effect. More specifically, as shown in FIG. 4, when the first brake operating lever 121 is operated, the plunger 142 may increase the moving stroke due to the brake oil leakage, and the link 130 will pull the sleeve 190 more until the drawbar 170 It abuts against the extension resisting portion 143 of the brake master cylinder 140. At this time, the wire 195 still pulls the brake rocker arm 181 of the drum brake device 180, so that the drum brake device 180 can still cause the brake effect.

In summary, the linked brake system disclosed in the present invention can provide a simplified structure to reduce the manufacturing cost, and can also effectively improve the safety of the brake operation to avoid the risk of complete brake failure.

Although the present invention has been disclosed in its preferred embodiments, it is not intended to limit the present invention, and it is possible to make some modifications and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

100. . . Linked brake system

110. . . Fixed seat

121. . . First brake lever

122. . . Second brake lever

122a. . . Abutment

130. . . link

131. . . First end

132. . . Second end

140. . . Brake master cylinder

141. . . Oil room

142. . . Plunger

143. . . Extension resist

150. . . Brake caliper

160. . . Putt

170. . . Pull rod

171. . . Long hole

180. . . Drum brake device

181. . . Brake rocker

182. . . Positioning seat

190. . . casing

195. . . wire

196. . . Tubing

F. . . Frame

Figure 1 is a partial cross-sectional and plan view showing the interlocking brake system of the present invention in an operational state;

Figure 2 is a partial cross-sectional and plan view showing the interlocking brake system of the present invention in another operating state;

Figure 3 is a partial cross-sectional and plan view showing the interlocking brake system of the present invention in yet another operating state;

Figure 4 is a partial cross-sectional and plan view showing the interlocking brake system of the present invention in a further operational state.

100. . . Linked brake system

110. . . Fixed seat

121. . . First brake lever

122. . . Second brake lever

122a. . . Abutment

130. . . link

131. . . First end

132. . . Second end

140. . . Brake master cylinder

141. . . Oil room

142. . . Plunger

143. . . Extension resist

150. . . Brake caliper

160. . . Putt

170. . . Pull rod

171. . . Long hole

180. . . Drum brake device

181. . . Brake rocker

182. . . Positioning seat

190. . . casing

195. . . wire

196. . . Tubing

F. . . Frame

Claims (6)

A linkage brake system comprising: a fixed seat; a first brake operating lever coupled to the fixed seat in a rotating manner; a link having a first end and a second end, wherein the first end Relative to the second end, and connected to the first brake operating lever in a rotating manner; a brake master cylinder having an oil chamber and a plunger, wherein the plunger is disposed in the moving manner In the oil chamber, and the oil chamber is equipped with brake oil; a brake caliper is connected to the oil chamber of the brake master cylinder; a push rod is connected to the brake master cylinder in a rotating manner and is abutted The plunger is configured to drive the plunger to move into the oil chamber; a second brake operating lever is rotatably coupled to the brake master cylinder and is detachably coupled to the pusher a rod for driving the push rod to rotate; a drum brake device having a brake rocker arm; a sleeve abutting between the second end of the link and the drum brake device; and a wire Passing through the sleeve and connecting to the push rod and the drum brake The brake is set between the swing arm. The interlocking brake system of claim 1, wherein the second brake operating lever has an abutting portion, and the abutting portion abuts the push rod in a detachable manner. The linked brake system of claim 1, wherein the brake master cylinder further has an extension resisting portion, and the lead wire penetrates the extension resisting portion to be coupled to the push rod. The linked brake system of claim 3, further comprising a tie rod connected between the push rod and the wire, and detachably contacting the extension resisting portion. The linked brake system of claim 4, wherein the push rod is coupled to the pull rod in a rotating and moving manner. The linked brake system of claim 1, wherein the drum brake device further has a positioning seat, and the sleeve is abutted between the second end of the connecting rod and the positioning seat.