High-precision anti-deviation brake chamber

Abstract

According to the high-precision anti-deviation brake air chamber, a detection assembly is adopted, during braking, a reset spring can be compressed to form a magnetic field shielding layer, so that a plurality of magnetic movable rods retract under the action of the elastic force of an extrusion spring, clamping jaws and clamping blocks are connected in a clamped mode, and then the situation that a rod body exerts too large force on the reset spring is effectively avoided; the problem of leftward deviation or rightward deviation during vehicle braking is effectively solved, due to the fact that external air can enter the brake in the using process of the brake, dust carried in the air can be deposited in a gap of a clamping block, after a clamping jaw and the clamping block slip, a supporting rod moves outwards under the action of air pressure, the supporting and limiting effects on a diaphragm are achieved, and the clamping jaw and the clamping block are prevented from slipping. Compared with the prior art, the reset spring can be effectively prevented from being excessively compressed, the compression amplitude of the reset spring can be detected and protected, and when the reset spring is excessively compressed, a user can be reminded in time so that the brake can be maintained in time.

Description

Technical Field

[0001] The present invention relates to a brake chamber for preventing brake deviation, and particularly to a high-precision brake chamber for use in the field of brake components. Background Technology

[0002] Motor vehicle braking is achieved through a braking system, and the braking process is commonly known as braking. Depending on the power source of the braking system, motor vehicle brakes are generally divided into hydraulic brakes and air brakes. Hydraulic brakes have a simple structure, using hydraulic oil to power the brake pump, while air brakes have a more complex structure, using high-pressure gas to power the brake pump. Because air brakes respond quickly and can provide a large braking force (high air pressure, reaching 8-10 atmospheres), air brakes are widely used in large and medium-sized motor vehicles to ensure driving safety.

[0003] The specification of Chinese invention patent CN115978116A, "A Brake Air Chamber for Easy Assembly," discloses that return springs are prone to misalignment and deformation when over-compressed. With the positioning support of the support groove, misalignment and deformation can be effectively prevented, thus extending the service life of the return spring.

[0004] The existing product is inadequate because it cannot provide positioning and support for the straight spring. When the straight spring is over-compressed, it is prone to misalignment and deformation, which affects its elasticity. This can lead to unequal braking forces or braking time differences between the left and right brakes, causing the vehicle to veer to the left or right when braking. Summary of the Invention

[0005] The technical problem to be solved by the present invention in view of the above-mentioned prior art is that the straight tube spring is prone to misalignment and deformation when over-compressed, which affects its own elastic force and causes the vehicle to veer to the left or right when braking.

[0006] To address the aforementioned problems, this invention provides a high-precision anti-deviation brake chamber, comprising a housing, a diaphragm located inside the housing, a return spring fixedly connected to one end of the diaphragm, and a control valve body connected to the housing at the end of the diaphragm away from the return spring. A piston corresponding to the diaphragm is slidably connected inside the control valve body, and a rod is fixedly connected to the middle of the piston. A detection component for detecting the compression amplitude of the return spring is located outside the return spring. The detection component includes a detection ring concentrically arranged with the return spring and fixedly connected to the inner wall of the housing, with a magnetic movable rod slidably connected inside the detection ring. A cylinder slidably connected to the rod is located inside the return spring, and a magnetic sheet that attracts the magnetic movable rod is embedded in the cylinder at the position corresponding to the position of the magnetic movable rod. The detection component also includes a limiting ring fixed to the inner wall of the control valve body, with a pawl hinged inside the limiting ring to limit the movement of the limiting rod. Multiple locking blocks that engage with the pawl are provided at the outer end of the rod corresponding to the pawl.

[0007] In the aforementioned high-precision anti-deviation brake air chamber, the compression amplitude of the return spring is detected and protected, and the user is promptly alerted when the return spring is over-compressed.

[0008] As a further improvement of this application, the end of the detection ring away from the reset spring is fixedly connected to the detection ring by a compression spring, and the inside of the detection ring is filled with a medium that is compressed by the reset spring.

[0009] As a further improvement to this application, a connecting tube is provided between the detection ring and the jaws, and the connecting tube is made of an elastic material.

[0010] As another improvement of this application, the end of the block away from the piston is provided with a trigger airbag that is fixedly connected to the rod body, and the outer side of the trigger airbag is flush with the outer end of the rod body, and the rod body is slidably connected to the limiting ring body.

[0011] As a further improvement to this application, the interior of the trigger airbag is divided into an upper cavity and a lower cavity by a diaphragm, with the upper cavity filled with trigger fluid and the lower cavity filled with trigger particles.

[0012] As a further improvement to this application, a needle that punctures the diaphragm is fixedly connected to the top of the trigger airbag, and the claws exert a squeezing effect on the needle after they are deployed.

[0013] As a further improvement to this application, the outer end of the detection ring corresponding to the piston is slidably connected to multiple support rods, and the support rods and the claws are connected through a delivery air passage, the delivery air passage being equipped with a one-way elastic diaphragm.

[0014] As another improvement of this application, a pressing rod is movably inserted into the end of the rod away from the control valve body, and the pressing rod and the rod body are fixedly connected by a tension spring.

[0015] As another improvement of this application, an elastic airbag is fixed to the inner wall of the end of the air delivery channel facing the extrusion rod, and a pressure relief chamber is installed in the rod body to discharge the gas in the elastic airbag. An exhaust hole is opened inside the pressure relief chamber, and a ball is installed in the exhaust hole.

[0016] In summary, when the return spring is compressed, it forms a magnetic shielding layer, causing multiple magnetic moving rods to retract under the spring force, pushing the pawl to rotate and causing the pawl and the block to engage. This effectively prevents the rod from applying excessive force to the return spring, which would cause the return spring to deform and affect the elasticity. This effectively solves the problem of the vehicle veering to the left or right when braking.

[0017] During the use of the brake, external gas will enter the brake and the dust carried in the gas will be deposited in the gap of the pawl. When the pawl and the pawl slip, the pawl squeezes and triggers the airbag. The support rod moves outward under the action of gas pressure, which supports and limits the diaphragm, and further effectively prevents the return spring from being over-compressed.

[0018] Compared with existing technologies, this method can detect and protect the compression amplitude of the return spring, and can promptly remind the user when the return spring is over-compressed, so as to maintain the brake in a timely manner. Attached Figure Description

[0019] Figure 1 This is a perspective view of the first embodiment of this application;

[0020] Figure 2 This is a front view of the first embodiment of this application;

[0021] Figure 3 This is a partial enlarged view of the first embodiment of this application;

[0022] Figure 4 This is a structural diagram of the compression state of the reset spring according to the first embodiment of this application;

[0023] Figure 5 This is a diagram illustrating the movement of the magnetic movable rod according to the first embodiment of this application.

[0024] Figure 6 This is a cross-sectional view of the limiting ring body according to the first embodiment of this application;

[0025] Figure 7 This is a cross-sectional view of the rod according to the second embodiment of this application;

[0026] Figure 8 This is a diagram illustrating the motion structure of the support rod according to the second embodiment of this application;

[0027] Figure 9 This is a structural diagram of the compression rod and elastic airbag according to the second embodiment of this application;

[0028] Figure 10 This is a diagram of the elastic airbag under pressure according to the second embodiment of this application.

[0029] Explanation of the labels in the diagram:

[0030] 1. Shell; 2. Diaphragm; 3. Rod; 4. Piston; 5. Limiting ring; 6. Return spring; 7. Detection ring; 8. Magnetic moving rod; 9. Magnetic sheet; 10. Connecting tube; 11. Claw; 12. Clamping block; 13. Trigger airbag; 14. Support rod; 15. Air delivery channel; 16. Squeezing rod; 17. Elastic airbag; 18. Pressure relief chamber. Detailed Implementation

[0031] The two embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0032] First implementation method:

[0033] like Figure 1-4 The system includes a housing 1, a diaphragm 2 located inside the housing 1, a return spring 6 fixedly connected to one end of the diaphragm 2, and a control valve body connected to the housing 1 at the end of the diaphragm 2 away from the return spring 6. A piston 4 corresponding to the diaphragm 2 is slidably connected inside the control valve body, and a rod 3 is fixedly connected to the middle of the piston 4. A detection component for detecting the compression amplitude of the return spring 6 is provided on the outside of the return spring 6. The detection component includes a detection ring 7 concentrically arranged with the return spring 6 and fixedly connected to the inner wall of the housing 1. A magnetic movable rod 8 is slidably connected inside the detection ring 7. A cylinder slidably connected to the rod 3 is provided inside the return spring 6, and a magnetic sheet 9 that attracts the magnetic movable rod 8 is embedded in the cylinder at the position corresponding to the position of the magnetic movable rod 8.

[0034] When braking, the return spring 6 is compressed. When the return spring 6 is compressed to the preset compression amount, the gap between the return springs 6 will shrink. At this time, the return spring 6 forms a magnetic field shielding layer, which greatly weakens the magnetic attraction force of the magnetic sheet 9 on the magnetic movable rod 8. At this time, the magnetic movable rod 8 retracts and plays a limiting role on the rod body 3, thereby effectively preventing the rod body 3 from applying too much force to the return spring 6, causing the return spring 6 to deform and affect the elastic effect. This effectively solves the problem of the vehicle veering to the left or right when braking.

[0035] like Figure 4-6 The detection assembly also includes a limiting ring 5 fixed to the inner wall of the control valve body, and a claw 11 hinged inside the limiting ring 5 to the limiting rod 3. The rod 3 has multiple locking blocks 12 at the outer end corresponding to the claw 11 to engage with the claw 11. The end of the detection ring 7 away from the reset spring 6 is fixedly connected to the detection ring 7 by a compression spring, and the inside of the detection ring 7 is filled with a medium that is compressed by the reset spring 6. A connecting pipe 10 is connected between the detection ring 7 and the claw 11, and the connecting pipe 10 is made of elastic material.

[0036] Specifically, the magnetic field shielding layer formed by the return spring 6 causes multiple magnetic movable rods 8 to retract under the action of the compression spring force, and during the retraction, the internal medium is simultaneously compressed. The medium can be liquid or gas. Subsequently, the medium enters the connecting pipe 10 and causes the connecting pipe 10 to deform, pushing the claw 11 to rotate, so that the claw 11 and the locking block 12 are engaged, effectively avoiding the problem of the rod body 3 continuously applying force to the return spring 6, causing the return spring 6 to deform.

[0037] The second implementation method is to use the support rod 14 to support and limit the diaphragm 2, thereby further preventing the return spring 6 from being over-compressed.

[0038] As shown in Figure 6-8, the end of the locking block 12 away from the piston 4 is provided with a trigger airbag 13 fixedly connected to the rod body 3, and the outer side of the trigger airbag 13 is flush with the outer end of the rod body 3. The rod body 3 is slidably connected to the limiting ring body 5. The interior of the trigger airbag 13 is divided into an upper cavity and a lower cavity by a diaphragm. The upper cavity is filled with triggering fluid, and the lower cavity is filled with triggering particles. A needle that punctures the diaphragm is fixedly connected to the top of the trigger airbag 13, and the locking claw 11 squeezes the needle after unfolding. The detection ring 7 is slidably connected to the outer end of the piston 4 with multiple support rods 14, and the support rods 14 and the locking claw 11 are connected through the delivery air channel 15. A one-way elastic diaphragm is installed inside the delivery air channel 15.

[0039] Because external gas can enter the brake during use, dust carried in the gas can accumulate in the gaps of the locking block 12, causing slippage when the locking block 12 and the locking claw 11 engage. This can easily lead to over-compression of the return spring 6. To solve this problem, when the locking claw 11 and the locking block 12 slip, the locking claw 11 squeezes the trigger airbag 13, causing the needle to puncture the diaphragm. The trigger fluid and trigger particles mix to generate a large amount of gas. The trigger fluid can be cola, and the trigger particles can be mint candy particles. Subsequently, the support rod 14 moves outward under the gas pressure, providing support and limiting for the diaphragm 2, further effectively preventing the return spring 6 from being over-compressed.

[0040] The unidirectional elastic diaphragm can effectively prevent gas from flowing back under pressure, thus avoiding a decrease in the support and limiting effect of the support rod 14.

[0041] like Figure 9-10 A squeezing rod 16 is movably inserted into the end of the rod body 3 away from the control valve body, and the squeezing rod 16 and the rod body 3 are fixedly connected by a tension spring. An elastic air bag 17 is fixed to the inner wall of the end of the air delivery channel 15 facing the squeezing rod 16, and a pressure relief channel 18 is installed in the rod body 3 to discharge the gas in the elastic air bag 17. An exhaust hole is opened inside the pressure relief channel 18, and a ball is installed in the exhaust hole.

[0042] The elastic airbag 17 is connected to the air delivery channel 15. Therefore, the elastic airbag 17 will expand under the air delivery channel 15, which will squeeze the compression rod 16 and the rod body 3 apart, so that there is a certain gap between them. Then, when the user presses the brake pedal, the compression rod 16 will first squeeze the elastic airbag 17, so that some of the gas in the elastic airbag 17 will be discharged from the pressure relief channel 18. The ball will produce a warning sound under the action of airflow vibration, so that the user can clean the dust deposited on the rod body 3 in time, effectively ensuring the normal operation of the components.

[0043] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and its improved concept, should be covered within the scope of protection of this application.

Claims

1. A high-precision anti-deviation brake chamber, comprising a housing (1), a diaphragm (2) located inside the housing (1), a return spring (6) fixedly connected to one end of the diaphragm (2), and a control valve body connected to the housing (1) at the end of the diaphragm (2) away from the return spring (6), wherein a piston (4) corresponding to the diaphragm (2) is slidably connected inside the control valve body, and a rod (3) is fixedly connected to the middle of the piston (4), characterized in that, The outer side of the reset spring (6) is provided with a detection component for detecting the compression amplitude of the reset spring (6); The detection assembly includes a detection ring (7) that is concentrically arranged with the reset spring (6) and fixedly connected to the inner wall of the housing (1). A magnetic movable rod (8) is slidably connected inside the detection ring (7). The reset spring (6) has a cylinder that is slidably connected to the rod body (3). A magnetic sheet (9) that is attracted to the magnetic movable rod (8) is embedded in the cylinder at the position corresponding to the position of the magnetic movable rod (8). The detection assembly also includes a limiting ring (5) fixed to the inner wall of the control valve body, and a pawl (11) for the limiting rod (3) to move is hinged inside the limiting ring (5). The rod (3) has multiple pawls (12) that engage with the pawl (11) at the outer end of the pawl (11).

2. The high-precision anti-deviation brake air chamber according to claim 1, characterized in that, The end of the detection ring (7) away from the reset spring (6) is fixedly connected to the detection ring (7) by a compression spring, and the inside of the detection ring (7) is filled with a medium that is compressed by the reset spring (6).

3. The high-precision anti-deviation brake air chamber according to claim 2, characterized in that, A connecting tube (10) is connected between the detection ring (7) and the claw (11), and the connecting tube (10) is made of elastic material.

4. The high-precision anti-deviation brake air chamber according to claim 1, characterized in that, The end of the card block (12) away from the piston (4) is provided with a trigger airbag (13) that is fixedly connected to the rod body (3), and the outer side of the trigger airbag (13) is flush with the outer end of the rod body (3). The rod body (3) is slidably connected to the limiting ring body (5).

5. A high-precision anti-deviation brake air chamber according to claim 4, characterized in that, The trigger airbag (13) is divided into an upper cavity and a lower cavity by a diaphragm. The upper cavity is filled with trigger fluid and the lower cavity is filled with trigger particles.

6. A high-precision anti-deviation brake air chamber according to claim 5, characterized in that, The trigger airbag (13) is fixedly connected to a needle that punctures the diaphragm, and the claw (11) squeezes the needle after it unfolds.

7. A high-precision anti-deviation brake air chamber according to claim 6, characterized in that, The detection ring (7) is slidably connected to the outer end of the piston (4) by multiple support rods (14), and the support rods (14) and the claws (11) are connected through the conveying air passage (15), and a one-way elastic diaphragm is installed inside the conveying air passage (15).

8. A high-precision anti-deviation brake air chamber according to claim 7, characterized in that, The end of the rod (3) away from the control valve body is movably connected to a pressing rod (16), and the pressing rod (16) and the rod (3) are fixedly connected by a tension spring.

9. A high-precision anti-deviation brake air chamber according to claim 8, characterized in that, An elastic airbag (17) is fixed to the inner wall of one end of the air delivery channel (15) facing the extrusion rod (16), and a pressure relief cavity (18) for discharging gas from the elastic airbag (17) is installed inside the rod body (3). An exhaust hole is opened inside the pressure relief cavity (18), and a ball is installed in the exhaust hole.

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