Dual diaphragm brake chamber

Abstract

This utility model belongs to the technical field of brake chambers, specifically relating to a double-diaphragm brake chamber. By using a screw-on connection method, the brake chamber can be quickly installed and disassembled. The double-diaphragm brake chamber includes an upper housing, with a mating plate welded around the outer wall of the upper housing. Locking rods are fixed to both sides of the mating plate, and the bottom of the locking rods has threaded grooves. Positioning holes are provided at the four corners inside the mating plate. A lower housing is connected to the bottom of the mating plate. Rod blocks are fixed to the four corners of the top of the outer wall of the lower housing, and positioning rods are fixed to the top of the rod blocks. Limiting blocks and rod covers are fixed to both sides of the outer wall of the lower housing, respectively. A sliding rod is provided inside the limiting block. A lead screw is fixed to one end of the sliding rod, and an internal hexagonal head is fixed to the other end. An upper limiting plate is provided at the connection between the sliding rod and the lead screw, and a lower limiting plate is provided at the connection between the sliding rod and the internal hexagonal head.

Description

Technical Field

[0001] This utility model belongs to the field of brake chamber technology, specifically relating to a double diaphragm brake chamber. Background Technology

[0002] Currently, the brake chamber is also called the brake cylinder. When a car brakes, air enters the brake chamber through the air intake. Under the action of air pressure, the diaphragm deforms, pushes the push rod, and drives the brake adjusting arm to rotate the brake cam, pressing the brake shoe friction pads against the brake drum to generate braking.

[0003] The dual-diaphragm brake chamber is fixedly installed by bolts. During long-term use, the diaphragms need to be replaced and repaired. However, the bolt installation method is inconvenient for both disassembly and installation, and the bolts are easy to lose after disassembly. Currently, there is a lack of a mechanism to solve the above problems. Therefore, we propose the dual-diaphragm brake chamber. Summary of the Invention

[0004] In view of the shortcomings of the above-mentioned background technology, the purpose of this utility model is to provide a double diaphragm brake chamber. By connecting the brake chambers by tightening, the brake chambers can be quickly installed and disassembled. Compared with the traditional bolt connection installation, the loss of bolts during disassembly is avoided, which greatly improves the convenience of brake chamber installation and disassembly and solves the problem of double diaphragm brake chambers.

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows:

[0006] The double diaphragm brake chamber includes an upper housing. A mating plate is welded around the outer wall of the upper housing. Locking rods are fixed on both sides of the mating plate, and the bottom of the locking rods has a threaded groove. Positioning holes are provided at the four corners inside the mating plate. A lower housing is connected to the bottom of the mating plate. Rod blocks are fixed at the four corners of the top of the outer wall of the lower housing, and positioning rods are fixed at the top of the rod blocks. Limiting blocks and rod covers are fixed on both sides of the outer wall of the lower housing, respectively. A sliding rod is provided inside the limiting block. A lead screw is fixed at one end of the sliding rod, and an internal hexagon head is fixed at the other end of the sliding rod. An upper limiting plate is provided at the connection between the sliding rod and the lead screw, and a lower limiting plate is provided at the connection between the sliding rod and the internal hexagon head.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the positioning rod is located directly below the positioning hole, and the top of the positioning rod is inserted into the interior of the positioning hole.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the slide rod completely penetrates the interior of the limiting block, and the slide rod and the limiting block constitute a sliding mechanism.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the rod cover is wrapped around the outside of the limiting block, the top of the rod cover has a rod hole, the outer wall of the locking rod is matched with the size of the rod hole, and the end of the locking rod is inserted into the inside of the rod hole.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the slide rod, lead rod, and threaded groove are on the same axis, the top of the lead rod is located inside the threaded groove, and the thread size of the lead rod and the threaded groove are matched and connected to form a rotating mechanism.

[0011] The outstanding and beneficial technical effects of this utility model compared to the prior art are:

[0012] This invention uses a screw-on method to connect the brake chamber, which allows for quick installation and disassembly of the brake chamber. Compared with traditional bolt-on installation, it avoids the loss of bolts during disassembly and greatly improves the convenience of brake chamber assembly and disassembly.

[0013] This utility model features a rod cover on the outside of the limiting block. The rod cover provides protection for the locking mechanism, effectively isolating dust and dirt from entering the locking mechanism and greatly extending its service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the rod cover structure of this utility model;

[0017] Figure 4 This is an enlarged schematic diagram of the structure at point A of this utility model.

[0018] Reference numerals: 1. Upper shell cover; 2. Butt plate; 3. Lower shell cover; 4. Rod cover; 5. Rod hole; 6. Locking rod; 7. Rod block; 8. Positioning rod; 9. Positioning hole; 10. Limiting block; 11. Sliding rod; 12. Lead screw; 13. Upper limit plate; 14. Lower limit plate; 15. Internal hexagon head; 16. Threaded groove. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0020] This utility model provides, for example Figure 1-4The double diaphragm brake chamber shown includes an upper housing 1. A mating plate 2 is welded around the outer wall of the upper housing 1. Locking rods 6 are fixed on both sides of the mating plate 2, and the bottom end of the locking rods 6 is provided with a threaded groove 16. Positioning holes 9 are provided at the four corners inside the mating plate 2. A lower housing 3 is connected to the bottom end of the mating plate 2. Rod blocks 7 are fixed at the four corners of the top of the outer wall of the lower housing 3, and positioning rods 8 are fixed at the top of the rod blocks 7. Limiting blocks 10 and rod covers 4 are fixed on both sides of the outer wall of the lower housing 3, respectively. The inner side of the limiting block 10... The unit is equipped with a slide rod 11, one end of which is fixed with a lead screw 12, and the other end of which is fixed with an internal hexagon head 15. An upper limit plate 13 is provided at the connection between the slide rod 11 and the lead screw 12, and a lower limit plate 14 is provided at the connection between the slide rod 11 and the internal hexagon head 15. By connecting the brake chambers by tightening, the brake chambers can be quickly installed and disassembled. Compared with the traditional bolt connection installation, the loss of bolts during disassembly is avoided, which greatly improves the convenience of brake chamber installation and disassembly.

[0021] Furthermore, in order to quickly assemble the upper and lower housings: such as Figure 1-4 As shown, the positioning rod 8 is located directly below the positioning hole 9, and the top of the positioning rod 8 is inserted into the inside of the positioning hole 9. The positioning rod 8 can drive the upper shell 1 and the lower shell 3 to achieve a quick positioning and docking effect.

[0022] Furthermore, to facilitate the connection between the drive screw and the threaded groove: such as Figure 1-4 As shown, the slide rod 11 completely penetrates the interior of the limiting block 10. The slide rod 11 and the limiting block 10 constitute a sliding mechanism. The slide rod 11 moves based on the interior of the limiting block 10 and limits the sliding distance of the upper limiting piece 13 and the lower limiting piece 14, which is conducive to the rapid docking of the drive screw 12 and the threaded groove 16.

[0023] Furthermore, such as Figure 1-4 As shown, the rod cover 4 surrounds the outside of the limiting block 10. A rod hole 5 is provided at the top of the rod cover 4. The outer wall of the locking rod 6 is matched to the size of the rod hole 5, and the end of the locking rod 6 is inserted into the inside of the rod hole 5. The rod cover 4 provides protection for the locking mechanism, maximizing the isolation of dust and dirt to prevent them from entering the locking mechanism. This is to provide protection for the locking mechanism.

[0024] Furthermore, such as Figure 1-4 As shown, the slide rod 11, lead rod 12 and threaded groove 16 are on the same axis. The top of the lead rod 12 is located inside the threaded groove 16, and the thread size of the lead rod 12 and the threaded groove 16 are adapted to each other to form a rotating mechanism. The lead rod 12 and the threaded groove 16 rotate and dock to form a rotation lock, so as to quickly achieve the effect of locking the upper cover 1 and the lower cover 3.

[0025] During operation; when installing the air chamber, the mating plate 2 at the bottom of the upper shell 1 mates with the positioning rods 8 at the four corners of the top of the lower shell 3. The positioning rods 8 will be inserted into the positioning holes 9 to complete the quick positioning between the upper shell 1 and the lower shell 3. During the positioning process, the locking rod 6 will be inserted into the rod hole 5 at the top of the rod cover 4. When it is necessary to lock the upper shell 1 and the lower shell 3, push the slide rod 11 up. The slide rod 11 will rise and fall within the limit block 10. The position of the slide rod 11 is limited by the upper limit plate 13 and the lower limit plate 14, and it moves within a certain range. When the slide rod 11 is pushed up, the top of the screw rod 12 will enter the threaded groove 16 at the bottom of the locking rod 6. The internal hex head 15 will be rotated by the wrench. The internal hex head 15 will drive the slide rod 11 and the screw rod 12 to rotate at the same time. At this time, the screw rod 12 will be screwed into the threaded groove 16 to complete the quick locking of the locking rod 6. When disassembling, the above steps are reversed. The design is simple and practical.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In this utility model, unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," "fixing," and "screw-on," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection.

[0028] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A dual-diaphragm brake chamber, including an upper housing, characterized in that, A mating plate is welded around the outer wall of the upper shell. Locking rods are fixed on both sides of the mating plate, and the bottom of the locking rods is provided with threaded grooves. Positioning holes are provided at the four corners inside the mating plate. The bottom of the mating plate is connected to the lower shell. Rod blocks are fixed at the four corners of the top of the outer wall of the lower shell, and positioning rods are fixed at the top of the rod blocks. Limiting blocks and rod covers are fixed on both sides of the outer wall of the lower shell, respectively. A sliding rod is provided inside the limiting block. A lead screw is fixed at one end of the sliding rod, and an internal hexagon head is fixed at the other end of the sliding rod. An upper limit plate is provided at the connection between the sliding rod and the lead screw, and a lower limit plate is provided at the connection between the sliding rod and the internal hexagon head.

2. The dual-diaphragm brake chamber according to claim 1, characterized in that, The positioning rod is located directly below the positioning hole, and the top of the positioning rod is inserted into the inside of the positioning hole.

3. The dual-diaphragm brake chamber according to claim 1, characterized in that, The slide bar extends completely through the interior of the limiting block, and the slide bar and the limiting block together form a sliding mechanism.

4. The dual-diaphragm brake chamber according to claim 1, characterized in that, The rod cover is wrapped around the outside of the limiting block. The top of the rod cover has a rod hole. The outer wall of the locking rod is matched with the size of the rod hole, and the end of the locking rod is inserted into the inside of the rod hole.

5. The dual-diaphragm brake chamber according to claim 1, characterized in that, The slide rod, lead screw, and threaded groove are on the same axis. The top of the lead screw is located inside the threaded groove, and the thread size of the lead screw and the threaded groove are matched to form a rotating mechanism.

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