Spring brake chamber with energy storage function

Abstract

The present invention discloses a spring brake chamber with energy storage function, which relates to the technical field of spring brake chambers and includes a body, an air pump and a pipeline. An acting chamber and a braking chamber are formed inside the body. A spring is arranged inside the braking chamber. One side of the spring is provided with a telescopic rod. The spring is movably connected to the body through the telescopic rod. A rotating shaft is arranged at the connection of the spring and the telescopic rod. A guiding assembly is arranged inside the braking chamber. A piston is arranged on one side of the guiding assembly. An acting rod is arranged on the side of the piston away from the guiding assembly. The guiding assembly is used to control the rotation of the spring. The acting chamber and the braking chamber are connected through the air pump and the pipeline. A control valve is arranged at the connection of the acting chamber and the pipeline. By rotating the spring, the present invention reduces the extrusion amplitude of the spring during extrusion, avoids the spring being in a highly compressed state for a long time, and prolongs the service life of the spring.

Description

Technical Field

[0001] The present invention relates to the technical field of spring brake chambers, and in particular to a spring brake chamber with energy storage function. Background Art

[0002] Spring brake chambers are widely used in automotive braking systems. They are installed on the drive axles of vehicles to provide braking force for the vehicles. It mainly consists of two parts: the diaphragm chamber is used for service braking; the spring chamber is used for auxiliary braking and parking braking, and is provided with a mechanical release mechanism to achieve forced release.

[0003] In the non-use state of the existing spring brake chamber, the spring inside the spring brake chamber is in a highly compressed state, and the time when the vehicle is in the non-braking condition is much longer than that in the braking state, that is, the spring is in a highly compressed state for a long time. And during the kinetic energy release process of the spring, the telescopic amplitude of the spring is large, and the telescoping needs to be completed in a short time. The above two situations cause great loss to the spring, easily cause spring metal fatigue, and have a great impact on the service life of the spring. Summary of the Invention

[0004] The purpose of the present invention is to provide a spring brake chamber with energy storage function to solve the problems raised in the above background art.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: A spring brake chamber with energy storage function, including a body, an air pump and a pipeline. An action chamber and a brake chamber are opened inside the body. A spring is arranged inside the brake chamber. One side of the spring is provided with a telescopic rod. The spring is movably connected to the body through the telescopic rod. A rotating shaft is arranged at the connection of the spring and the telescopic rod. A guiding component is arranged inside the brake chamber. A piston is arranged on one side of the guiding component. An action rod is arranged on the side of the piston away from the guiding component. The guiding component is used to control the rotation of the spring;

[0006] The action chamber and the brake chamber are connected through the air pump and the pipeline. A control valve is arranged at the connection of the action chamber and the pipeline;

[0007] A through hole is provided on one side of the piston; the action chamber and the brake chamber are connected by a pipeline and an air pump. When the body is in a non-braking state, the air pump guides the gas inside the brake chamber to the action chamber through the pipeline, so that the air pressure inside the action chamber is in a high-pressure state relative to the air pressure inside the brake chamber. The piston is affected by the air pressure at both ends, and the air pressure difference pushes the piston to move to the side where the brake chamber is located. Since a guide component and a spring are provided inside the brake chamber, the piston drives the spring to be compressed under the action of the guide component. At the same time, the spring rotates with the rotating shaft as the center under the action of the guide component until the air pump stops working. The pressure fed back to the piston by the spring is equal to the effect generated by the air pressure difference on both sides of the piston. The force is applied, and the piston moves to the upper limit inside the brake chamber, the action rod and the piston stop moving, and the spring stops contracting and rotating at the same time; when the body needs to brake, the control valve is opened, and the high-pressure gas inside the action chamber actively moves to the low-pressure area, namely the brake chamber, under the action of its own pressure, and the high-pressure gas inside the action chamber moves to the brake chamber through the pipeline, and the air pressure values on both sides of the piston tend to be balanced, so that the piston is quickly reset under the action of the air pressure. At the same time, a spring is provided on one side of the piston, and the spring rotates quickly under the action of the guide assembly. The pressure fed back to the spring by the piston through the guide assembly is reduced, and the spring pushes the piston to move to the side where the action chamber is located, and the piston outputs the braking effect through the action rod.

[0008] Furthermore, the guide assembly includes two arc-shaped plates arranged inside the brake chamber, and the two arc-shaped plates are respectively installed on the main body and the piston; the arc-shaped plate is used to guide the spring, and when the spring is squeezed by the piston, one end of the spring fits with the arc-shaped plate, that is, the end surface of the spring away from the rotating shaft is slidably connected with the arc-shaped plate, and since the piston slides horizontally inside the brake chamber, when the piston squeezes the internal space of the brake chamber, the spatial length of the spring in the horizontal axis direction of the main body is rapidly reduced, and at the same time, the outer surface of the arc-shaped plate is arc-shaped, that is, one end of the spring fits with the arc-shaped surface, and when the arc-shaped plates on both sides of the spring approach each other under the action of the piston, the spatial length of the spring in the horizontal axis direction of the main body is The outer surface structure of the arc plate forces the spring to rotate with the rotating shaft as the center, so that the spring deflects from the horizontal state to the vertical state, so that the spring obtains space in the vertical direction and reduces the length of the spring when it is compressed; the center of the arc surface of the arc plate is staggered with the center of the rotating shaft, and the straight-line distance between the end point of the arc plate in the horizontal direction and the rotating shaft is greater than the straight-line distance between the end point of the arc plate in the vertical direction and the rotating shaft, which means that when the spring is in contact with the arc plate, the arc plate has a guiding function for the spring, and the arc plate makes the inclined state of the spring approach the horizontal state; during the resetting period of the piston, the pressure of the piston on the spring disappears, and the spring naturally stretches and approaches the horizontal state under the guidance of the arc plate.

[0009] Further, limit plates are installed on both the body and the piston; one end point of the limit plate is located on the horizontal axis of the body, and the limit plate is used to limit the deflection angle of the spring. Since the time required for the air inside the action chamber to be released into the brake chamber under the action of the pressure difference is relatively short, and at the same time, the pressure of the spring inside the brake chamber is quickly released and deflected with the rotation axis as the center. The function of the limit plate is that after the spring releases the pressure, it prevents the end of the spring from leaving the area where the arc plate is located under the action of inertia, thereby causing the spring to lose its effect during the release of the piston in the brake chamber next time.

[0010] Further, an activity chamber is opened inside the piston. The activity chamber is communicated with the brake chamber. A slide plate is slidably connected inside the activity chamber, and the slide plate is connected to the action rod. When the air inside the brake chamber moves into the action chamber under the action of the air pump, at this time, the inside of the brake chamber is in a low-pressure state relative to the external air pressure. Since the activity chamber is communicated with the brake chamber and the slide plate is connected to the action rod, the slide plate moves in the direction away from the action chamber under the action of the low pressure inside the brake chamber, thereby causing the slide plate to drive the action rod to retract. When the air inside the brake chamber is communicated with the air inside the action chamber under the action of the control valve, at this time, the body is in a braking state, and the air pressure inside the brake chamber is in a high-pressure state relative to the external air pressure, causing the slide plate to move in the direction close to the action chamber under the action of the high pressure inside the brake chamber, thereby causing the slide plate to drive the action rod to extend and achieve the braking effect.

[0011] Further, there are two groups of pipelines. An air pump and a one-way valve are installed in the middle of one group of pipelines. A control valve is provided at the connection of the other group of pipelines and the pipelines. Both ends of the two groups of pipelines are respectively communicated with the action chamber and the brake chamber. An air pump and a one-way valve are installed in the middle of one group of pipelines. This group of pipelines is mainly used to cooperate with the air pump to input the air inside the brake chamber into the action chamber, so that during the non-braking period of the body, the air pressure in the action chamber exists in a high-pressure form relative to the brake chamber. A control valve is installed at the connection of the other group of pipelines and the action chamber, so that during the period when the body needs to brake, the body issues a command to the control valve to make the control valve in an open state, and the air moves from the action chamber to the brake chamber. The air flow does not need to pass through the pipeline where the air pump is located, avoiding the internal structure of the air pump affecting the air flow speed when the air flow flows into the brake chamber.

[0012] Further, a telescopic sleeve is installed outside the through hole, and the telescopic sleeve is formed by sleeving two hollow round rods; the space on the side of the piston in the braking cavity close to the acting cavity is the free cavity. Due to the setting of the through hole, during the change of the volume of the free cavity due to the change of the piston position, the free cavity always exchanges air with the external environment through the through hole to avoid the formation of high pressure or low pressure in the free cavity due to the change of the piston position, which affects the normal sliding of the piston. A telescopic sleeve can be installed outside the through hole according to the use requirements. The telescopic sleeve is formed by sleeving two hollow round rods. During the change of the volume of the free cavity due to the change of the piston position, the air pressure in the free cavity changes. Through the relative sliding of the hollow round rods, the air inside the two hollow round rods is guided into or out of the free cavity to balance the air pressure inside the free cavity.

[0013] Further, one end of the spring is connected with a roller, the spring contacts with the arc plate or the limiting plate through the roller, and a guiding groove is arranged in the middle of the spring, and the width of the guiding groove is equal to the width of the arc plate or the limiting plate; the spring is connected with the arc plate through the roller. By rolling the roller on the arc plate, the sliding friction is changed into rolling friction during the relative movement of the spring and the arc plate, and the sensitivity of the piston driving the spring to move is improved.

[0014] Further, a convex block is arranged at one end of the arc plate, and the linear distance between the convex block and the rotating shaft is less than the linear distance between the arc plate and the rotating shaft; the convex block is installed on the arc plate. Due to the existence of the convex block, the linear distance between the upper end point of the arc plate in the vertical direction and the rotating shaft is further reduced. The arc plate is used in cooperation with the limiting plate to limit the deflection angle of the spring, so that the deflection angle of the spring is less than 90°, and the range of the spring does not exceed the origin with the rotating shaft as the origin. The springs on both sides of the rotating shaft are always located in the second quadrant and the fourth quadrant, and the central axis of the spring does not coincide with the vertical direction line and the horizontal direction line of the rotating shaft.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0016] 1. For the spring brake air chamber with energy storage function, through the setting of the guiding component, during the extrusion of the spring, the guiding component controls the overall rotation of the spring to reduce the space length in the horizontal direction and reduce the impact on the spring. The rotated spring is convenient to find the release space in the vertical direction, avoiding the spring being in a highly compressed state in non-braking situations, and thus avoiding the impact on the spring life caused by over-compression;

[0017] 2. The spring brake chamber with energy storage function, through the settings of the piston and the slide plate, during braking, the piston is sufficient to drive the actuating rod to achieve the braking effect. Through the settings of the movable chamber and the slide plate, by using the high-pressure environment inside the braking chamber, the high-pressure environment further increases the power of the actuating rod through the slide plate, realizing that under the same braking effect, the pressure released by the spring required for braking is reduced.

[0018] 3. The spring brake chamber with energy storage function, through the settings of the roller and the telescopic rod, the function of the telescopic rod is to drive the whole spring to slide horizontally, avoiding the dislocation of the spring during pressure release or storage. The setting of the roller, through the roller rolling on the arc plate, realizes the transformation from sliding friction to rolling friction during the relative movement of the spring and the arc plate, improving the sensitivity of the piston to drive the spring to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0020] Figure 1 is the schematic diagram of the full-section front view of the main body of the present invention (the schematic diagram is rotated 90° clockwise);

[0021] Figure 2 is the schematic diagram of the front view of the telescopic rod of the present invention (the schematic diagram is rotated 90° clockwise);

[0022] Figure 3 is the schematic diagram of the full-section front view of the main body of the present invention with the spring in the extended state (the schematic diagram is rotated 90° clockwise);

[0023] Figure 4 is the schematic diagram of the front view of the main body of the present invention (the schematic diagram is rotated 90° clockwise);

[0024] Figure 5 is the schematic diagram of the full-section front view of the telescopic sleeve of the present invention (the schematic diagram is rotated 90° clockwise);

[0025] Figure 6 is the schematic diagram of the full-section front view of the piston of the present invention;

[0026] Figure 7 is the schematic diagram of the right side view of the piston of the present invention;

[0027] Figure 8 is the Figure 3 magnified schematic diagram of part A in the present invention.

[0028] In the figure: 1. Body; 2. Acting chamber; 3. Braking chamber; 4. Spring; 401. Roller; 5. Telescopic rod; 6. Rotating shaft; 7. Guide assembly; 701. Arc-shaped plate; 702. Limiting plate; 8. Piston; 801. Moving chamber; 802. Slide plate; 9. Acting rod; 11. Pipeline; 12. Through hole; 13. Telescopic sleeve. Specific implementation manner

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1 - 8 , the present invention provides a technical solution: a spring braking air chamber with an energy storage function, including a body 1, an air pump, and a pipeline 11. An acting chamber 2 and a braking chamber 3 are opened inside the body 1. A spring 4 is arranged inside the braking chamber 3. One side of the spring 4 is provided with a telescopic rod 5. The spring 4 is movably connected to the body 1 through the telescopic rod 5. A rotating shaft 6 is arranged at the connection of the spring 4 and the telescopic rod 5. A guide assembly 7 is arranged inside the braking chamber 3. A piston 8 is arranged on one side of the guide assembly 7. An acting rod 9 is arranged on the side of the piston 8 away from the guide assembly 7. The guide assembly 7 is used to control the rotation of the spring 4;

[0031] The acting chamber 2 and the braking chamber 3 are connected through an air pump and a pipeline 11. A control valve is arranged at the connection of the acting chamber 2 and the pipeline 11;

[0032] A through hole 12 is arranged on one side of the piston 8;

[0033] The guide assembly 7 includes two arc-shaped plates 701 arranged inside the braking chamber 3. The two arc-shaped plates 701 are respectively installed on the body 1 and the piston 8;

[0034] Limiting plates 702 are installed on both the body 1 and the piston 8. During the extrusion of the spring 4, the guide assembly 7 controls the overall rotation of the spring 4 to reduce the spatial length in the horizontal direction and reduce the impact on the spring 4. The rotated spring 4 is convenient to find a release space from the space in the vertical direction, avoiding the spring 4 being in a highly compressed state in a non-braking situation, and thus avoiding the impact of over-compression on the service life of the spring 4;

[0035] The interior of the piston 8 is provided with a movable chamber 801. The movable chamber 801 communicates with the braking chamber 3. A sliding plate 802 is slidably connected inside the movable chamber 801. The sliding plate 802 is connected to the actuating rod 9. During braking, the piston 8 is sufficient to drive the actuating rod 9 to achieve a braking effect. Through the settings of the movable chamber 801 and the sliding plate 802, using the high-pressure environment inside the braking chamber 3, the high-pressure environment further increases the power of the actuating rod 9 through the sliding plate 802, realizing that under the condition of the same braking effect, the pressure released by the spring 4 required for braking is reduced;

[0036] There are two groups of pipes 11. A gas pump and a one-way valve are installed in the middle of one group of pipes 11. This group of pipes 11 is mainly used to cooperate with the gas pump to input the air inside the braking chamber 3 into the acting chamber 2, so that during non-braking of the main body 1, the air pressure in the acting chamber 2 exists in a high-pressure form relative to the braking chamber 3; A control valve is installed at the connection of the other group of pipes 11 and the acting chamber 2;

[0037] A telescopic sleeve 13 is installed outside the through hole 12. The telescopic sleeve 13 is formed by sleeving two hollow round rods;

[0038] One end of the spring 4 is connected with a roller 401. The function of the telescopic rod 5 is to drive the whole spring 4 to slide on the horizontal line to prevent the spring 4 from being misaligned during pressure release or storage. With the setting of the roller 401, when the roller 401 rolls on the arc-shaped plate 701, the sliding friction during the movement of the spring 4 relative to the arc-shaped plate 701 is changed into rolling friction, improving the sensitivity of the piston 8 to drive the spring 4 to move;

[0039] One end of the arc-shaped plate 701 is provided with a convex block.

[0040] The working principle of the present invention: The acting chamber 2 and the braking chamber 3 are connected by pipes 11 and a gas pump. When the main body 1 is in a non-braking state, the gas pump guides the gas inside the braking chamber 3 to the acting chamber 2 through the pipes 11, so that the air pressure inside the acting chamber 2 is in a high-pressure state relative to the air pressure inside the braking chamber 3. Affected by the air pressure at both ends, the air pressure difference pushes the piston 8 to move towards the side where the braking chamber 3 is located. Since the guiding component 7 and the spring 4 are arranged inside the braking chamber 3, under the action of the guiding component 7, the piston 8 drives the spring 4 to be compressed. At the same time, under the action of the guiding component 7, the spring 4 rotates around the rotating shaft 6 until the gas pump stops working. The pressure feedback from the spring 4 to the piston 8 is equal to the acting force generated by the air pressure difference on both sides of the piston 8. The piston 8 moves to the upper limit inside the braking chamber 3, the actuating rod 9 and the piston 8 stop moving, and at the same time the spring 4 stops contracting and rotating;

[0041] When braking is required, the control valve opens, and the high-pressure gas inside the working chamber 2 moves actively to the low-pressure area, i.e., the braking chamber 3, under the action of its own pressure. The high-pressure gas inside the working chamber 2 moves to the braking chamber 3 through the pipeline. The air pressure values on both sides of the piston 8 tend to balance, causing the piston 8 to quickly reset under the action of air pressure. At the same time, a spring 4 is arranged on one side of the piston 8. The spring 4 quickly rotates under the action of the guiding component 7. The pressure fed back by the piston 8 to the spring 4 through the guiding component 7 decreases, and the spring 4 pushes the piston 8 to move towards the side where the working chamber 2 is located. The piston 8 outputs the braking effect through the actuating rod 9.

[0042] The arc-shaped plate 701 is used to guide the spring 4. When the spring 4 is squeezed by the piston 8, one end of the spring 4 is in contact with the arc-shaped plate 701, that is, the surface of the end of the spring 4 far from the rotating shaft 6 is slidably connected to the arc-shaped plate 701. Since the piston 8 slides horizontally inside the braking chamber 3, when the piston 8 squeezes the internal space of the braking chamber 3, the space length of the spring 4 in the horizontal axis direction of the main body 1 quickly decreases. At the same time, the outer surface of the arc-shaped plate 701 is arc-shaped, that is, one end of the spring 4 is in contact with the arc surface. When the arc-shaped plates 701 on both sides of the spring 4 approach each other under the action of the piston 8, the space length of the spring 4 in the horizontal axis direction of the main body 1 quickly decreases. The outer surface structure of the arc-shaped plate 701 forces the spring 4 to rotate around the rotating shaft 6, causing the spring 4 to deflect from the horizontal state to the vertical state, so as to obtain space in the vertical direction and reduce the compressed length of the spring 4 when it is compressed.

[0043] The center of the arc surface of the arc-shaped plate 701 is offset from the center of the rotating shaft 6. The straight-line distance between the upper endpoint of the arc-shaped plate 701 in the horizontal direction and the rotating shaft 6 is greater than the straight-line distance between the upper endpoint of the arc-shaped plate 701 in the vertical direction and the rotating shaft 6. That is to say, when the spring 4 is in contact with the arc-shaped plate 701, the arc-shaped plate 701 has a guiding function for the spring 4, and the arc-shaped plate 701 makes the inclined state of the spring 4 approach the horizontal. During the reset of the piston 8, the pressure of the piston 8 on the spring 4 disappears, and the spring 4 naturally extends and approaches the horizontal under the guidance of the arc-shaped plate 701.

[0044] One end point of the limiting plate 702 is located on the horizontal axis of the main body 1. The limiting plate 702 is used to limit the deflection angle of the spring 4. Since the time required for the air inside the working chamber 2 to be released into the braking chamber 3 under the action of the pressure difference is relatively short, and at the same time, the pressure of the spring 4 inside the braking chamber 3 is quickly released and deflects around the rotating shaft 6. The function of the limiting plate 702 is that after the spring 4 releases the pressure, it prevents the end of the spring 4 from leaving the area where the arc-shaped plate 701 is located under the action of inertia, which may cause the spring 4 to lose its effectiveness during the next release of the piston 8 inside the braking chamber 3.

[0045] When the air inside the brake chamber 3 moves into the acting chamber 2 under the action of the air pump, the pressure inside the brake chamber 3 is in a low-pressure state relative to the external air pressure at this time. Since the movable chamber 801 is connected to the brake chamber 3 and the slide plate 802 is connected to the acting rod 9, the slide plate 802 moves in the direction away from the acting chamber 2 under the action of the low pressure inside the brake chamber 3, and then the slide plate 802 drives the acting rod 9 to retract; when the air inside the brake chamber 3 is connected to the air inside the acting chamber 2 under the action of the control valve, the main body 1 is in a braking state at this time, and the air pressure inside the brake chamber 3 is in a high-pressure state relative to the external air pressure, so that the slide plate 802 moves in the direction close to the acting chamber 2 under the action of the high pressure inside the brake chamber 3, and then the slide plate 802 drives the acting rod 9 to extend to achieve the braking effect;

[0046] Both ends of the two groups of pipelines 11 are respectively connected to the acting chamber 2 and the brake chamber 3. An air pump and a one-way valve are installed in the middle of one group of pipelines 11. This group of pipelines 11 is mainly used to cooperate with the air pump to input the air inside the brake chamber 3 into the acting chamber 2, so that during the non-braking period of the main body 1, the air pressure in the acting chamber 2 exists in the form of high pressure relative to the brake chamber 3; a control valve is installed at the connection of the other group of pipelines 11 and the acting chamber 2, so that during the period when the main body 1 needs to brake, the main body 1 issues an order to the control valve to make the control valve in an open state, and the air moves from the acting chamber 2 into the brake chamber 3. The air flow does not need to pass through the pipeline 11 where the air pump is located, so as to avoid the internal structure of the air pump affecting the air flow velocity when the air flow flows into the brake chamber 3;

[0047] The space on the side of the piston 8 in the brake chamber 3 close to the acting chamber 2 is the free chamber. Due to the setting of the through hole 12, during the period when the volume of the free chamber changes due to the position change of the piston 8, the free chamber always exchanges air with the external environment through the through hole 12, so as to avoid the formation of high pressure or low pressure in the free chamber due to the position change of the piston 8, which affects the normal sliding of the piston 8. A telescopic sleeve 13 can be installed outside the through hole 12 according to the use requirements. The telescopic sleeve 13 is composed of two hollow round rods sleeved together. During the period when the volume of the free chamber changes due to the position change of the piston 8, the air pressure in the free chamber changes. The air inside the two hollow round rods is guided into or out of the free chamber through the relative sliding of the hollow round rods to balance the air pressure inside the free chamber;

[0048] The spring 4 is connected to the arc-shaped plate 701 through the roller 401. By rolling the roller 401 on the arc-shaped plate 701, the sliding friction is changed to rolling friction during the movement of the spring 4 relative to the arc-shaped plate 701, and the sensitivity of the piston 8 driving the spring 4 to move is improved;

[0049] The bump is installed on the arc-shaped plate 701. Due to the presence of the bump, the linear distance between the upper endpoint of the arc-shaped plate 701 in the vertical direction and the rotating shaft 6 is further reduced. The arc-shaped plate 701 is used in cooperation with the limiting plate 702 to limit the deflection angle of the spring 4, so that the deflection angle of the spring 4 is less than 90°, and the range of the spring 4 does not exceed taking the rotating shaft 6 as the origin. The springs 4 on both sides of the rotating shaft 6 are always located in the second quadrant and the fourth quadrant, and the central axis of the spring 4 does not coincide with the vertical direction line and the horizontal direction line of the rotating shaft 6.

[0050] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0051] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Spring brake chamber with energy storage function, comprising a body (1), an air pump and a pipeline (11), characterized in that: An operation cavity (2) and a braking cavity (3) are provided inside the body (1). A spring (4) is arranged inside the braking cavity (3). One side of the spring (4) is provided with a telescopic rod (5). The spring (4) is movably connected to the body (1) through the telescopic rod (5). A rotating shaft (6) is arranged at the connection between the spring (4) and the telescopic rod (5). A guiding component (7) is arranged inside the braking cavity (3). A piston (8) is arranged on one side of the guiding component (7). An operating rod (9) is arranged on the side of the piston (8) away from the guiding component (7). The guiding component (7) is used to control the rotation of the spring (4). The operation cavity (2) and the braking cavity (3) are connected through an air pump and a pipeline (11). A through hole (12) is arranged on one side of the piston (8). The guiding component (7) includes two arc-shaped plates (701) arranged inside the braking cavity (3). The two arc-shaped plates (701) are respectively installed on the body (1) and the piston (8).

2. The spring brake chamber with energy storage function according to claim 1, characterized in that: Limiting plates (702) are installed on both the body (1) and the piston (8).

3. The spring brake chamber with energy storage function according to claim 1, characterized in that: An activity cavity (801) is provided inside the piston (8). The activity cavity (801) is communicated with the braking cavity (3). A sliding plate (802) is slidably connected inside the activity cavity (801). The sliding plate (802) is connected to the operating rod (9).

4. The spring brake chamber with energy storage function according to claim 3, characterized in that: There are two groups of pipelines (11). An air pump and a one-way valve are installed in the middle of one group of pipelines (11). A control valve is arranged at the connection between the other group of pipelines (11) and the pipelines (11).

5. The spring brake chamber with energy storage function according to claim 1, characterized in that: A telescopic sleeve (13) is installed outside the through hole (12). The telescopic sleeve (13) is formed by sleeving two hollow round rods.

6. The spring brake chamber with energy storage function according to claim 2, characterized in that: One end of the spring (4) is connected with a roller (401). The spring (4) contacts the arc-shaped plate (701) or the limiting plate (702) through the roller (401). A guiding groove is arranged in the middle of the spring (4). The width of the guiding groove is equal to the width of the arc-shaped plate (701) or the limiting plate (702).

7. The spring brake chamber with energy storage function according to claim 1, characterized in that: One end of the arc-shaped plate (701) is provided with a convex block. The linear distance between the convex block and the rotating shaft (6) is less than the linear distance between the arc-shaped plate (701) and the rotating shaft (6).

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