CN212717739U - Single-cavity limiting brake air chamber - Google Patents
Single-cavity limiting brake air chamber Download PDFInfo
- Publication number
- CN212717739U CN212717739U CN202021586907.8U CN202021586907U CN212717739U CN 212717739 U CN212717739 U CN 212717739U CN 202021586907 U CN202021586907 U CN 202021586907U CN 212717739 U CN212717739 U CN 212717739U
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- push rod
- front cover
- disc
- positioning
- cavity
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Abstract
The utility model belongs to the technical field of the stopper technique and specifically relates to a spacing brake chamber in single chamber, including protecgulum, hou gai, push rod dish and involucra, set up push rod and push rod dish in the cavity that protecgulum and involucra formed, be provided with the positioning disk in the cavity that involucra and protecgulum formed, the positioning disk is an one end open-ended hollow body structure, and its opening is towards the protecgulum, is provided with a through-hole at the bottom center of positioning disk, and the through-hole diameter is less than push rod dish diameter, the push rod dish be located between positioning disk and involucra, the push rod passes from the through-hole, is provided with the spring between protecgulum and positioning disk, is provided with the air inlet on the back, is provided with mounting bolt on the protecgulum, is provided with the atmospheric. The utility model discloses the spacing brake chamber in single chamber who obtains can realize that brake chamber's stroke is spacing, and spacing process is more reliable and more stable, and product life obtains promoting.
Description
Technical Field
The utility model belongs to the technical field of the stopper technique and specifically relates to a spacing brake chamber in single chamber.
Background
In the prior art, the limiting in the brake air chamber is basically realized by adopting a limiting rod, and only one limiting rod is adopted, so that the stability of the push rod is poor, the spring compression and release processes are easy to incline, the service life of the brake air chamber is short, and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the not enough of above-mentioned technique and providing a spacing brake chamber in single chamber, can carry on spacingly to the braking stroke, and stability is high.
In order to achieve the purpose, the utility model discloses a spacing brake chamber of single chamber, including protecgulum, back lid, push rod dish and involucra, protecgulum and back lid butt joint form a confined cavity, there is the involucra in protecgulum and back lid butt joint centre gripping, the involucra divides this confined cavity into two independent cavities, set up push rod and push rod dish in the cavity that protecgulum and involucra formed, one end of push rod is fixed in the center of push rod dish, the other end of push rod extends to the outside from the installing port department at the center of protecgulum, be provided with the positioning disk in the cavity that involucra and protecgulum formed, the positioning disk is a one end open-ended hollow body structure, its opening is towards the protecgulum, be provided with a through-hole in the bottom center of positioning disk, the through-hole diameter is less than push rod dish diameter, the push rod dish be located between positioning disk and the, the spring is arranged between the front cover and the positioning plate, the air inlet is arranged on the rear cover, the mounting bolt is arranged on the front cover, the air pressure balance pipe is arranged on the front cover, and the air pressure balance pipe is communicated with the outside.
In the technical scheme, the positioning disc is arranged in the cavity formed by the front cover and the leather membrane, the push rod penetrates through the through hole of the positioning disc, and the push rod disc is located between the positioning disc and the leather membrane, so that when the leather membrane overcomes the pressure of the spring and moves towards one side of the front cover when the air inlet enters high-pressure air, the leather membrane can drive the positioning disc, the push rod disc and the push rod to move forwards, and braking is achieved. And the positioning disc has certain thickness, and when the positioning disc moves forwards to a certain degree, the positioning disc can be abutted against the front cover, so that the stroke limit of the positioning disc is realized. And because the diameter of the through hole is smaller than the outer diameter of the push rod disc, when the spring extends to push the positioning disc to one end of the rear cover, the push rod disc and the push rod can be driven to move, and therefore the running stability of the brake air chamber is high. And at its spacing in-process, because the positioning disk is one end open-ended hollow body structure, then actually includes bottom plate and lateral wall, and the lateral wall then covers one side extension to the front at the edge of bottom plate, so its circumference with the protecgulum all can fix a position, and positional stability is high, and each position atress is even, promotes its performance and life. The front cover and the rear cover can both adopt anodized aluminum, so that the product is lighter and the corrosion resistance of the product is improved.
Preferably, an annular positioning step is arranged in the middle of the front cover, a positioning boss is formed by extending outwards at the opening of the positioning disc, and the outer diameter of the positioning boss is larger than the inner diameter of the positioning step and smaller than the outer diameter of the positioning step. The design of this structure can make spacing more accurate stable between positioning disk and the protecgulum, and the reliability is high. Simultaneously can overlap on the location boss of positioning disk and be equipped with the clamping ring, the clamping ring has shock-absorbing function, can reduce produced noise and vibrations at the location in-process, promotes product life.
The bottom center of the positioning disc is inwards concave towards one side of the front cover to form an inwards concave cavity, the through hole is positioned in the center of the inwards concave cavity, and the push rod disc is positioned in the inwards concave cavity. The design of this structure can make the contact site of involucra and positioning disk, push rod dish more level and smooth, reduces the wearing and tearing to the involucra among the operation process repeatedly, lifting means life.
The front cover is characterized in that external threads are arranged on the push rod at the mounting opening of the front cover and outside the mounting opening, a locking nut is arranged on the push rod at the mounting opening, a connecting bolt is arranged at the end part of the push rod, a connecting fork is arranged on the connecting bolt, and the locking nut and the connecting bolt are locked on the push rod. Wherein connecting bolt inside is provided with the screw with the external screw thread matched with of push rod tip, and connecting bolt's inside and outside screw thread opposite direction, so adopt positive and negative tooth design, can realize making under the condition that does not dismantle yoke and brake chamber main part and vehicle connection and realize separating between yoke and the push rod, be convenient for installation and debugging maintenance.
A dust cover is arranged between the mounting opening of the front cover and the push rod outside the front cover, one end of the dust cover is connected with the edge of the mounting opening of the front cover, a dust cover fixing ring is arranged at the other end of the dust cover, the dust cover fixing ring is sleeved on the push rod, and the dust cover fixing ring is located between the connecting bolt and the locking nut.
Use the red steel paper packing ring of coating film between construction bolt and protecgulum, reinforcing laminating degree makes the atress even in order to increase the contact surface of construction bolt and protecgulum, plays waterproof dustproof absorbing effect when increasing brake chamber's durability.
The utility model discloses the spacing brake chamber in single chamber who obtains, it is through reasonable structural design, and it is spacing to realize brake chamber's stroke, and spacing process is reliable and stable more, and product life obtains promoting.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a side view of the present invention;
fig. 3 is a cross-sectional view of the present invention.
Detailed Description
The invention is further described by the following embodiments in conjunction with the accompanying drawings.
Example 1:
as shown in fig. 1, 2 and 3, the single-cavity limiting brake chamber described in this embodiment includes a front cover 1, a rear cover 2, a push rod 10, a push rod disc 11 and a membrane 8, the front cover 1 and the rear cover 2 are butted to form a sealed cavity, the membrane 8 is clamped at the butt joint of the front cover 1 and the rear cover 2, the membrane 8 divides the sealed cavity into two independent cavities, the push rod 10 and the push rod disc 11 are disposed in the cavity formed by the front cover 1 and the membrane 8, one end of the push rod 10 is fixed at the center of the push rod disc 11, the other end of the push rod 10 extends to the outside from an installation port 18 at the center of the front cover 1, a positioning disc 9 is disposed in the cavity formed by the membrane 8 and the front cover 1, the positioning disc 9 is a hollow body structure with an open end facing the front cover 1, a through hole 19 is disposed at the center of the bottom of the positioning disc 9, the diameter of the through hole 19 is smaller than the diameter of the, the push rod disc 11 is positioned between the positioning disc 9 and the leather membrane 8, the push rod 10 penetrates through the through hole 19, the spring 12 is arranged between the front cover 1 and the positioning disc 9, the air inlet 3 is arranged on the rear cover 2, the mounting bolt 4 is arranged on the front cover 1, the air pressure balance pipe 5 is arranged on the front cover 1, and the air pressure balance pipe 5 is communicated with the outside.
An annular positioning step 13 is arranged at the middle part of the front cover 1, a positioning boss 14 is formed by extending outwards at the opening of the positioning disk 9, and the outer diameter of the positioning boss 14 is larger than the inner diameter of the positioning step 13 and smaller than the outer diameter of the positioning step 13.
The center of the bottom of the positioning disc 9 is recessed towards one side of the front cover 1 to form an inner concave cavity, the through hole 19 is positioned at the center of the inner concave cavity, and the push rod disc 11 is positioned in the inner concave cavity.
The push rod 10 at the installation opening 18 and outside of the front cover 1 is provided with external threads, the push rod 10 at the installation opening 18 is provided with a locking nut, the end part of the push rod 10 is provided with a connecting bolt 16, the connecting bolt 16 is provided with a connecting fork 6, and the locking nut 15 and the connecting bolt 16 are locked on the push rod 10. Wherein the connecting bolt 16 is internally provided with a screw hole matched with the external thread at the end of the push rod 10, and the directions of the internal thread and the external thread of the connecting bolt 16 are opposite.
A dust cover 7 is arranged between the mounting hole 18 of the front cover 1 and the push rod 10 outside the front cover 1, one end of the dust cover 7 is connected with the edge of the mounting hole 18 of the front cover 1, a dust cover fixing ring 17 is arranged at the other end of the dust cover 7, the dust cover fixing ring 17 is sleeved on the push rod 10, and the dust cover fixing ring 17 is located between the connecting bolt 16 and the locking nut 15.
Claims (5)
1. The utility model provides a spacing brake chamber in single chamber, includes protecgulum, hou gai, push rod dish and involucra, characterized by: the front cover and the rear cover are butted to form a closed cavity, a leather membrane is clamped at the joint of the front cover and the rear cover, the leather membrane divides the closed cavity into two independent cavities, a push rod and a push rod disc are arranged in the cavity formed by the front cover and the leather membrane, one end of the push rod is fixed at the center of the push rod disc, the other end of the push rod extends to the outside from an installation opening at the center of the front cover, a positioning disc is arranged in the cavity formed by the leather membrane and the front cover, the positioning disc is of a hollow body structure with one open end, the opening of the positioning disc faces the front cover, a through hole is arranged at the center of the bottom of the positioning disc, the diameter of the through hole is smaller than that of the push rod disc, the push rod disc is positioned between the positioning disc and the leather membrane, the push rod penetrates through the through hole, a spring is arranged between the front cover and the positioning disc, an air inlet, the air pressure balance pipe is communicated with the outside.
2. The single-cavity limit brake air chamber as claimed in claim 1, wherein: an annular positioning step is arranged in the middle of the front cover, a positioning boss is formed by extending outwards at the opening of the positioning disc, and the outer diameter of the positioning boss is larger than the inner diameter of the positioning step and smaller than the outer diameter of the positioning step.
3. A single chamber limit brake chamber as claimed in claim 1 or claim 2, wherein: the bottom center of the positioning disc is inwards concave towards one side of the front cover to form an inwards concave cavity, the through hole is positioned in the center of the inwards concave cavity, and the push rod disc is positioned in the inwards concave cavity.
4. A single chamber limit brake chamber as defined in claim 3 wherein: the front cover is characterized in that external threads are arranged on the push rod at the mounting opening of the front cover and outside the mounting opening, a locking nut is arranged on the push rod at the mounting opening, a connecting bolt is arranged at the end part of the push rod, a connecting fork is arranged on the connecting bolt, and the locking nut and the connecting bolt are locked on the push rod.
5. The single-cavity limit brake air chamber as claimed in claim 4, wherein: a dust cover is arranged between the mounting opening of the front cover and the push rod outside the front cover, one end of the dust cover is connected with the edge of the mounting opening of the front cover, a dust cover fixing ring is arranged at the other end of the dust cover, the dust cover fixing ring is sleeved on the push rod, and the dust cover fixing ring is located between the connecting bolt and the locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021586907.8U CN212717739U (en) | 2020-08-04 | 2020-08-04 | Single-cavity limiting brake air chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021586907.8U CN212717739U (en) | 2020-08-04 | 2020-08-04 | Single-cavity limiting brake air chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212717739U true CN212717739U (en) | 2021-03-16 |
Family
ID=74911974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021586907.8U Active CN212717739U (en) | 2020-08-04 | 2020-08-04 | Single-cavity limiting brake air chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212717739U (en) |
-
2020
- 2020-08-04 CN CN202021586907.8U patent/CN212717739U/en active Active
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