Stable brake chamber

Abstract

The utility model relates to the technical field of brake air chambers, in particular to a stable brake air chamber which comprises a front air chamber and a rear air chamber, a brake diaphragm is fixedly installed in the rear air chamber, a connecting disc is fixedly installed on the brake diaphragm, a limiting cylinder is horizontally and fixedly installed at one end of the front air chamber, and the limiting cylinder is fixedly installed at the other end of the front air chamber. A limiting cylinder is arranged in the front air chamber, a push rod is horizontally and slidably inserted in the limiting cylinder, moving holes are symmetrically formed in one end of the front air chamber, moving rods are horizontally and slidably mounted in the two moving holes, moving rings are fixedly mounted at one ends of the two moving rods, the limiting cylinder is sleeved with an energy storage spring, and an adjusting assembly is arranged on the front air chamber. When the energy storage spring deforms after being used for a long time, the adjusting assembly drives the two moving rods to move, the distance between the moving ring and the connecting disc is shortened, and therefore the energy storage spring is compressed, the energy storage spring can keep original elastic potential energy, the energy storage spring does not need to be replaced, and normal use of a brake chamber is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of brake chamber technology, and in particular to a stable brake chamber. Background Technology

[0002] The brake chamber, also known as the brake cylinder, converts the pressure of compressed air into mechanical force that rotates the brake camshaft, thus achieving braking action. When a car brakes, air enters the brake chamber through the air intake. Under the action of air pressure, the diaphragm deforms, pushing the push rod and driving the brake adjusting arm to rotate the brake cam, pressing the brake shoe friction pads against the brake drum to generate braking.

[0003] After prolonged use, the internal springs of brake chambers on the market are prone to deformation. This is because during frequent braking, the springs are constantly subjected to compression and extension forces, and are in a state of high stress for a long time. This causes the crystal structure of the metal material to gradually change, resulting in fatigue and eventually deformation. Once the springs are deformed, they will directly affect the use of the brake chambers. Utility Model Content

[0004] The purpose of this invention is to address the following shortcomings in the existing technology: after prolonged use, the internal springs of brake chambers on the market are prone to deformation. This is because during frequent braking, the springs are constantly subjected to compression and extension forces, and are in a state of high stress for a long time, which causes the crystal structure of the metal material to gradually change, resulting in fatigue and ultimately deformation. After the springs are deformed, they will directly affect the use of the brake chamber. Therefore, a stable brake chamber is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A stable brake chamber includes a front chamber and a rear chamber, which are connected by bolts. A brake diaphragm is fixedly installed in the rear chamber, and a connecting plate is fixedly installed in the middle of the brake diaphragm. A brake arm is horizontally slidably installed at the front end of the rear chamber, and one end of the brake arm is fixedly connected to one side of the connecting plate.

[0007] A limiting cylinder is horizontally fixedly installed at one end of the front air chamber. A push rod is horizontally slidably inserted inside the limiting cylinder. One end of the push rod is fixedly connected to the other side of the connecting plate. The axis of the brake arm and the push rod are on the same horizontal line.

[0008] The front air chamber has symmetrically arranged movable holes at one end. Movable rods are horizontally slidably installed in both movable holes. Movable rings are fixedly installed at one end of the two movable rods in the front air chamber. Energy storage springs are sleeved on the limiting cylinder. The two ends of the energy storage springs are fixedly connected to the movable rings and the connecting plate, respectively. The front air chamber is provided with an adjustment component for simultaneously driving the two movable rods to move.

[0009] Preferably, the adjustment assembly includes a threaded rod horizontally rotatably mounted at one end of the front air chamber, an adjustment block fixedly mounted at one end of the threaded rod, and a transmission plate threaded onto the threaded rod. The two ends of the transmission plate are respectively fixedly connected to one end of two moving rods.

[0010] Preferably, a locking nut is threaded onto the threaded rod, and one side of the locking nut is in close contact with one side of the transmission plate.

[0011] Preferably, the limiting cylinder has two strip-shaped holes on its side, and a limiting block is horizontally slidably installed in each of the two strip-shaped holes. Both limiting blocks are fixedly connected to the push rod.

[0012] Preferably, a support assembly is provided between the moving ring and the connecting disk, the support assembly being used to support the energy storage spring.

[0013] Preferably, the support assembly includes multiple rectangular rods circumferentially and equidistantly fixed to the side of the movable ring and multiple strip rods circumferentially and equidistantly fixed to the side of the connecting plate. One end of each rectangular rod has a rectangular opening, and one end of each strip rod is slidably inserted into the rectangular opening. The upper surface of the rectangular rod is flush with the upper surface of the strip rod.

[0014] The beneficial effects of this utility model are as follows:

[0015] When the energy storage spring deforms after prolonged use, the adjustment component moves the two moving rods, shortening the distance between the moving ring and the connecting plate, thereby compressing the energy storage spring. This allows the energy storage spring to maintain its original elastic potential energy, eliminating the need to replace the energy storage spring and ensuring the normal operation of the brake chamber. Attached Figure Description

[0016] Figure 1 This is a right-side three-dimensional structural diagram of a stable brake chamber proposed in this utility model.

[0017] Figure 2 This is a left-side three-dimensional structural diagram of a stable brake chamber proposed in this utility model.

[0018] Figure 3 This is a frontal three-dimensional cross-sectional view of a stable brake chamber proposed in this utility model.

[0019] Figure 4A three-dimensional structural diagram of the moving ring, support components, energy storage spring, and connecting disc;

[0020] Figure 5 for Figure 2 Enlarged view of the structure at point A in the middle;

[0021] Figure 6 A three-dimensional structural diagram of the limiting cylinder, push rod, connecting disc, and brake diaphragm;

[0022] Figure 7 A schematic diagram of the three-dimensional structure supporting the components.

[0023] In the diagram: 1. Front air chamber, 2. Rear air chamber, 3. Brake diaphragm, 4. Connecting disc, 5. Brake arm, 6. Limiting cylinder, 7. Push rod, 8. Moving rod, 9. Moving ring, 10. Energy storage spring, 11. Threaded rod, 12. Adjusting block, 13. Transmission plate, 14. Locking nut, 15. Limiting block, 16. Rectangular rod, 17. Strip rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figures 1-3 A stable brake chamber includes a front chamber 1 and a rear chamber 2, which are connected by bolts. A brake diaphragm 3 is fixedly installed in the rear chamber 2, and a connecting plate 4 is fixedly installed in the middle of the brake diaphragm 3. A brake arm 5 is horizontally slidably installed at the front end of the rear chamber 2, and one end of the brake arm 5 is fixedly connected to one side of the connecting plate 4. A limit cylinder 6 is horizontally fixedly installed at one end of the front chamber 1, and a push rod 7 is horizontally slidably inserted in the limit cylinder 6. One end of the push rod 7 is fixedly connected to the other side of the connecting plate 4. The axes of the brake arm 5 and the push rod 7 are on the same horizontal line. When braking, the brake chamber is filled with air into the front chamber 1, and the internal pressure of the front chamber 1 increases, causing the brake diaphragm 3 to deform towards the rear chamber 2. This causes the connecting plate 4 to move towards the rear chamber 2, and then the connecting plate 4 drives the brake arm 5 to move, causing the brake shoe friction pads to press against the brake drum to generate braking.

[0026] Reference Figures 4-5The front air chamber 1 has symmetrical moving holes at one end. Moving rods 8 are horizontally slidably installed in both moving holes. Moving rings 9 are fixedly installed on one end of the two moving rods 8 in the front air chamber 1. Energy storage springs 10 are sleeved on the limiting cylinder 6. The two ends of the energy storage springs 10 are fixedly connected to the moving rings 9 and the connecting plate 4, respectively. The front air chamber 1 is provided with an adjustment assembly for simultaneously driving the two moving rods 8 to move. The adjustment assembly includes a threaded rod 11 horizontally rotatably installed at one end of the front air chamber 1, an adjustment block 12 fixedly installed at one end of the threaded rod 11, and a transmission plate 13 threadedly sleeved on the threaded rod 11. The two ends of the transmission plate 13 are fixedly connected to one end of the two moving rods 8, respectively.

[0027] The energy storage spring 10 is installed between the moving ring 9 and the connecting plate 4. When the energy storage spring 10 deforms after long-term use, the rotating adjusting block 12 drives the threaded rod 11 to rotate. Under the action of the threaded rod 11, the transmission plate 13 moves towards the forward air chamber 1. Then, the transmission plate 13 simultaneously drives the two moving rods 8 to move, which in turn drives the moving ring 9 to move towards the connecting plate 4, reducing the distance between the moving ring 9 and the connecting plate 4, thereby compressing the energy storage spring 10. This allows the energy storage spring 10 to maintain its original elastic potential energy, eliminating the need to replace the energy storage spring 10 and ensuring the normal use of the brake air chamber.

[0028] A locking nut 14 is threaded onto the threaded rod 11. One side of the locking nut 14 is in close contact with one side of the transmission plate 13. When the transmission plate 13 moves, the locking nut 14 is rotated to make one side of the locking nut 14 in close contact with one side of the transmission plate 13. Under the action of the locking nut 14, the threaded rod 11 can be prevented from loosening during use of the brake chamber.

[0029] Reference Figure 6 The limiting cylinder 6 has two strip-shaped holes on its side. Limiting blocks 15 are horizontally slidably installed in both strip-shaped holes. Both limiting blocks 15 are fixedly connected to the push rod 7. One end of the push rod 7 slides horizontally inside the limiting cylinder 6. During the movement of the push rod 7, it will drive the limiting blocks 15 to move horizontally in the strip-shaped holes, which can improve the stability of the push rod 7's movement.

[0030] Reference Figure 7 A support assembly is provided between the moving ring 9 and the connecting plate 4. The support assembly is used to support the energy storage spring 10. The support assembly includes multiple rectangular rods 16 that are circumferentially fixedly installed on the side of the moving ring 9 and multiple strip rods 17 that are circumferentially fixedly installed on the side of the connecting plate 4. One end of the rectangular rod 16 has a rectangular opening, and one end of the strip rod 17 is slidably inserted into the rectangular opening. The upper surface of the rectangular rod 16 is flush with the upper surface of the strip rod 17.

[0031] The strip rod 17 slides horizontally on the rectangular rod 16. Multiple strip rods 17 and multiple rectangular rods 16 are equidistantly arranged on the inner side of the energy storage spring 10 and in contact with the inner side of the energy storage spring 10. When the energy storage spring 10 undergoes expansion and contraction deformation, the strip rods 17 and rectangular rods 16 will support the energy storage spring 10, prevent the energy storage spring 10 from bending deformation, ensure that the energy storage spring 10 deforms in the axial direction, and thus ensure the stability of the energy storage spring 10 during use.

[0032] In this invention, the energy storage spring 10 is installed between the moving ring 9 and the connecting plate 4. When the energy storage spring 10 deforms after long-term use, the rotating adjusting block 12 drives the threaded rod 11 to rotate. Under the action of the threaded rod 11, the transmission plate 13 moves towards the forward air chamber 1. Then, the transmission plate 13 simultaneously drives the two moving rods 8 to move, thereby driving the moving ring 9 towards the connecting plate 4, reducing the distance between the moving ring 9 and the connecting plate 4, thus compressing the energy storage spring 10. This allows the energy storage spring 10 to maintain its original elastic potential energy, eliminating the need to replace the energy storage spring 10 and ensuring the normal use of the brake air chamber.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A stable brake chamber, comprising a front chamber (1) and a rear chamber (2), characterized in that, The front air chamber (1) and the rear air chamber (2) are connected by bolt fasteners. A brake diaphragm (3) is fixedly installed in the rear air chamber (2). A connecting plate (4) is fixedly installed in the middle part of the brake diaphragm (3). A brake arm (5) is horizontally slidably installed at the front end of the rear air chamber (2). One end of the brake arm (5) is fixedly connected to one side of the connecting plate (4). One end of the front air chamber (1) is horizontally fixedly installed with a limiting cylinder (6), and a push rod (7) is horizontally slidably inserted inside the limiting cylinder (6). One end of the push rod (7) is fixedly connected to the other side of the connecting plate (4), and the axis of the brake arm (5) and the push rod (7) are on the same horizontal line. The front air chamber (1) has symmetrically opened moving holes at one end. Moving rods (8) are horizontally slidably installed in both moving holes. Moving rings (9) are fixedly installed at one end of the two moving rods (8) in the front air chamber (1). Energy storage springs (10) are sleeved on the limiting cylinder (6). The two ends of the energy storage springs (10) are fixedly connected to the moving rings (9) and the connecting plate (4) respectively. The front air chamber (1) is provided with an adjustment component for simultaneously driving the two moving rods (8) to move.

2. The stable brake chamber according to claim 1, characterized in that, The adjustment assembly includes a threaded rod (11) that is horizontally rotatably mounted on one end of the front air chamber (1), an adjustment block (12) that is fixedly mounted on one end of the threaded rod (11), and a transmission plate (13) that is threaded onto the threaded rod (11). The two ends of the transmission plate (13) are respectively fixedly connected to one end of two moving rods (8).

3. A stable brake chamber according to claim 2, characterized in that, A locking nut (14) is threaded onto the threaded rod (11), and one side of the locking nut (14) is in close contact with one side of the transmission plate (13).

4. A stable brake chamber according to claim 1, characterized in that, The limiting cylinder (6) has two strip holes on its side, and a limiting block (15) is horizontally slidably installed in each of the two strip holes. Both limiting blocks (15) are fixedly connected to the push rod (7).

5. A stable brake chamber according to claim 1, characterized in that, A support assembly is provided between the moving ring (9) and the connecting disk (4), the support assembly being used to support the energy storage spring (10).

6. A stable brake chamber according to claim 5, characterized in that, The support assembly includes multiple rectangular rods (16) that are circumferentially and equidistantly fixed on the side of the moving ring (9) and multiple strip rods (17) that are circumferentially and equidistantly fixed on the side of the connecting plate (4). One end of the rectangular rod (16) has a rectangular opening, and one end of the strip rod (17) is slidably inserted into the rectangular opening. The upper surface of the rectangular rod (16) is flush with the upper surface of the strip rod (17).

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