Double-diaphragm spring brake chamber

Abstract

The utility model discloses a double-diaphragm spring brake chamber, which belongs to the technical field of spring brake chambers and comprises a connector and a first shell mounted at one end of the connector, a second shell mounted at the other end of the connector, a second diaphragm component mounted on the first shell and a first diaphragm component mounted on the second shell. The first shell and the second shell are each provided with a main installation block, the connecting body is provided with an auxiliary installation block, each main installation block is provided with an insertion block, each auxiliary installation block is provided with an installation groove matched with the corresponding insertion block, and each main installation block is provided with a guide assembly. According to the utility model, the insertion block is connected with the mounting groove in a clamping manner, the first shell and the second shell are pulled, and the insertion block slides out of the mounting groove, so that the first shell and the second shell can be conveniently mounted without using bolts, the mounting is relatively convenient, the limiting plate is slid, and the insertion rod is inserted into the insertion groove; and the first shell and the second shell which are installed can be conveniently limited.

Description

Technical Field

[0001] This utility model relates to a spring brake chamber, and more particularly to a double diaphragm spring brake chamber, belonging to the technical field of spring brake chambers. Background Technology

[0002] The function of the brake chamber is to convert the pressure of compressed air into the mechanical force that rotates the brake camshaft, thereby achieving the braking action. The brake chamber is a clamp-type diaphragm type. The front and rear brake chambers are different in size, but their structures are basically the same. When the 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 produce braking.

[0003] The existing double diaphragm spring brake chamber is not easy to install in actual use. It generally requires special tools to turn the bolts for installation, which is quite inconvenient. Utility Model Content

[0004] The main purpose of this invention is to solve the problem of inconvenient installation of the housing by providing a double diaphragm spring brake chamber.

[0005] The objective of this utility model can be achieved by adopting the following technical solution:

[0006] A double diaphragm spring brake chamber includes a connecting body and a first housing mounted on one end of the connecting body, and a second housing mounted on the other end of the connecting body. A second diaphragm assembly is mounted on the first housing, and a first diaphragm assembly is mounted on the second housing. A main mounting block is mounted on both the first and second housings. An auxiliary mounting block is mounted on the connecting body. An insertion block is mounted on the main mounting block. An installation groove that mates with the insertion block is formed on the auxiliary mounting block. A guide assembly is mounted on the main mounting block. A sliding assembly is mounted on the guide assembly. A limit assembly is mounted on the sliding assembly. An engaging assembly is mounted on the limit assembly.

[0007] Preferably, the guide assembly includes a connecting plate and a limiting ring. The connecting plate is mounted on the main mounting block, a limiting ring is mounted on one end of the connecting plate, and a guide rod is mounted on the connecting plate.

[0008] Preferably, the limiting component includes a limiting plate and a plug rod, the plug rod is slidably mounted on the limiting ring, the limiting plate is mounted on the top of the plug rod, and the plug block has a slot that cooperates with the plug rod.

[0009] Preferably, the sliding assembly includes a limiting plate, a connecting rod, and a guide ring. The limiting plate has connecting rods installed on both sides, and a guide ring is installed at one end of the connecting rod. The guide ring has a sliding hole that cooperates with the guide rod.

[0010] Preferably, the insertion rod has a cavity, a third spring is installed inside the cavity, a retaining ball is installed at one end of the third spring, and a retaining groove is provided on the insertion block to cooperate with the retaining ball.

[0011] Preferably, the second diaphragm assembly includes a second diaphragm, a second spring, and a piston rod. The second diaphragm is mounted on the first housing, and the piston rod is mounted on the second diaphragm. The second diaphragm is connected to the first housing via the second spring.

[0012] Preferably, the first diaphragm assembly includes a first diaphragm, a first spring, and a push rod. The first diaphragm is mounted on the second housing, and the push rod is mounted on the first diaphragm. The first diaphragm is connected to the second housing via the first spring.

[0013] The beneficial technical effects of this utility model are as follows:

[0014] 1. The double diaphragm spring brake chamber of this utility model is designed with a plug that engages with the mounting groove. By pulling the first housing and the second housing, the plug slides out of the mounting groove, which facilitates the installation of the first housing and the second housing without the need for bolts, making installation more convenient.

[0015] 2. The sliding limit plate allows the insertion rod to be inserted into the slot, which facilitates the limiting of the first and second housings after installation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the piston rod structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the insert structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the insertion rod structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the ball-holding structure of this utility model;

[0021] Figure 6 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0022] In the diagram: 1. First housing; 2. Second housing; 3. Connector; 5. Main mounting block; 6. Auxiliary mounting block; 7. Limiting plate; 8. Push rod; 9. Second diaphragm; 10. Piston rod; 11. Second spring; 12. First spring; 13. First diaphragm; 14. Insertion block; 15. Guide rod; 16. Guide ring; 17. Connecting rod; 18. Connecting plate; 19. Limiting ring; 20. Insertion rod; 21. Ball catcher; 22. Third spring; 23. Cavity. Detailed Implementation

[0023] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0024] like Figures 1-6 As shown, the dual-diaphragm spring brake chamber provided in this embodiment includes a connecting body 3 and a first housing 1 installed at one end of the connecting body 3. A second housing 2 is installed at the other end of the connecting body 3. A second diaphragm assembly is installed on the first housing 1, and a first diaphragm assembly is installed on the second housing 2. The second diaphragm assembly includes a second diaphragm 9, a second spring 11, and a piston rod 10. The second diaphragm 9 is installed on the first housing 1, and the piston rod 10 is installed on the second diaphragm 9. The second diaphragm 9 is connected to the first housing 1 through the second spring 11. The first diaphragm assembly includes a first diaphragm 13, a first spring 12, and a push rod 8. The first diaphragm 13 is installed on the second housing 2, and the push rod 8 is installed on the first diaphragm 13. The first diaphragm 13 is connected to the second housing 2 via the first spring 12. Both the first housing 1 and the second housing 2 are equipped with a main mounting block 5. The connecting body 3 is equipped with an auxiliary mounting block 6. The main mounting block 5 is equipped with an insert block 14. The auxiliary mounting block 6 has a mounting groove that cooperates with the insert block 14. The main mounting block 5 is equipped with a guide component. The guide component is equipped with a sliding component. The sliding component is equipped with a limit component. The limit component is equipped with a locking component. By setting the insert block 14 to lock into the mounting groove, the first housing 1 and the second housing 2 are pulled to slide the insert block 14 out of the mounting groove, which facilitates the installation of the first housing 1 and the second housing 2 without the need for bolts, making the installation more convenient.

[0025] In this embodiment, as Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the guide assembly includes a connecting plate 18 and a limiting ring 19. The connecting plate 18 is mounted on the main mounting block 5, and the limiting ring 19 is mounted on one end of the connecting plate 18. A guide rod 15 is mounted on the connecting plate 18. The sliding assembly includes a limiting plate 7, a connecting rod 17, and a guide ring 16. Connecting rods 17 are mounted on both sides of the limiting plate 7, and a guide ring 16 is mounted on one end of the connecting rod 17. The guide ring 16 has a sliding hole that cooperates with the guide rod 15. By setting the guide ring 16 to slide and connect with the guide rod 15, it is easy to guide and limit the insertion rod 20. By sliding the limiting plate 7, the guide ring 16 slides on the guide rod 15, inserting the insertion rod 20 into the slot to limit the installation of the first housing 1 and the second housing 2. By setting the connecting plate 18, it is easy to guide and limit the insertion rod 20. The limiting assembly for the supporting guide rod 15 includes a limiting plate 7 and a plug rod 20. The plug rod 20 is slidably mounted on the limiting ring 19, and the limiting plate 7 is installed on the top of the plug rod 20. The plug block 14 has a slot that cooperates with the plug rod 20. By sliding the limiting plate 7, the plug rod 20 is inserted into the slot, which can facilitate the limiting of the first housing 1 and the second housing 2 after installation. The plug rod 20 has a cavity 23, and a third spring 22 is installed inside the cavity 23. A retaining ball 21 is installed at one end of the third spring 22. The plug block 14 has a retaining groove that cooperates with the retaining ball 21. By setting the retaining ball 21 to engage with the retaining groove, it can facilitate the limiting of the slidable plug rod 20, and thus facilitate the limiting of the first housing 1 and the second housing 2 after installation.

[0026] In this embodiment, as Figures 1-6 As shown, the working process of a double diaphragm spring brake chamber provided in this embodiment is as follows:

[0027] Step 1: Insert the insert 14 into the mounting slot and install the first housing 1 and the second housing 2 onto the connector 3;

[0028] Step 2: Slide the limiting plate 7, the guide ring 16 slides on the guide rod 15, insert the plug rod 20 into the slot, and the locking ball 21 is locked into the slot to limit the installation of the first housing 1 and the second housing 2.

[0029] In summary, in this embodiment, the double diaphragm spring brake chamber, by setting the insert block 14 to engage with the mounting slot, pulls the first housing 1 and the second housing 2, and slides the insert block 14 out of the mounting slot, which facilitates the installation of the first housing 1 and the second housing 2 without the need for bolts, making installation more convenient. By setting the guide ring 16 to slide with the guide rod 15, it is easy to guide and limit the insertion rod 20. By sliding the limiting plate 7, the guide ring 16 slides on the guide rod 15, and the insertion rod 20 is inserted into the slot to limit the installation of the first housing 1 and the second housing 2. By setting the connecting plate 18, it is easy to support the guide rod 15. By sliding the limiting plate 7, the insertion rod 20 is inserted into the slot, which is easy to limit the installation of the first housing 1 and the second housing 2. By setting the locking ball 21 to engage with the locking slot, it is easy to limit the sliding insertion rod 20, and thus it is easy to limit the installation of the first housing 1 and the second housing 2.

[0030] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0031] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0032] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A double diaphragm spring brake chamber, characterized in that, The device includes a connector (3) and a first housing (1) installed at one end of the connector (3). A second housing (2) is installed at the other end of the connector (3). A second diaphragm assembly is installed on the first housing (1), and a first diaphragm assembly is installed on the second housing (2). A main mounting block (5) is installed on both the first housing (1) and the second housing (2). An auxiliary mounting block (6) is installed on the connector (3). An insert block (14) is installed on the main mounting block (5). An installation groove that cooperates with the insert block (14) is opened on the auxiliary mounting block (6). A guide assembly is installed on the main mounting block (5). A sliding assembly is installed on the guide assembly. A limit assembly is installed on the sliding assembly. A locking assembly is installed on the limit assembly.

2. The double diaphragm spring brake chamber according to claim 1, characterized in that, The guide assembly includes a connecting plate (18) and a limiting ring (19). The connecting plate (18) is mounted on the main mounting block (5). The limiting ring (19) is mounted on one end of the connecting plate (18). The guide rod (15) is mounted on the connecting plate (18).

3. The double diaphragm spring brake chamber according to claim 2, characterized in that, The limiting component includes a limiting plate (7) and a plug rod (20). The plug rod (20) is slidably mounted on the limiting ring (19). The limiting plate (7) is installed on the top of the plug rod (20). The plug block (14) has a slot that cooperates with the plug rod (20).

4. The double diaphragm spring brake chamber according to claim 3, characterized in that, The sliding assembly includes a limiting plate (7), a connecting rod (17), and a guide ring (16). The limiting plate (7) is equipped with connecting rods (17) on both sides. The connecting rod (17) is equipped with a guide ring (16) at one end. The guide ring (16) has a sliding hole that cooperates with the guide rod (15).

5. A double diaphragm spring brake chamber according to claim 3, characterized in that, The insertion rod (20) has a cavity (23), a third spring (22) is installed inside the cavity (23), a retaining ball (21) is installed at one end of the third spring (22), and a retaining groove that cooperates with the retaining ball (21) is provided on the insertion block (14).

6. A double diaphragm spring brake chamber according to claim 1, characterized in that, The second diaphragm assembly includes a second diaphragm (9), a second spring (11), and a piston rod (10). The second diaphragm (9) is mounted on the first housing (1), and the piston rod (10) is mounted on the second diaphragm (9). The second diaphragm (9) is connected to the first housing (1) via the second spring (11).

7. A double diaphragm spring brake chamber according to claim 1, characterized in that, The first diaphragm assembly includes a first diaphragm (13), a first spring (12) and a push rod (8). The first diaphragm (13) is mounted on the second housing (2), and the push rod (8) is mounted on the first diaphragm (13). The first diaphragm (13) is connected to the second housing (2) through the first spring (12).

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