Novel piston type brake chamber with hasps formed at one time

Abstract

The utility model relates to the field of brake chambers, in particular to a novel piston type brake chamber with a hasp formed at a time, which comprises an air cylinder body and a middle body, a protrusion is annularly arranged at the right end of the middle body, a matching cavity is arranged at the left end of the air cylinder body, and a positioning fixing cavity is arranged on the right side of the matching cavity. A hasp located on the left side of the positioning and fixing cavity is annularly arranged in the matching cavity, the included angle between the right side face of the hasp and the vertical face and the included angle between the left side face of the protrusion and the vertical face are 13 degrees, the protrusion is clamped and fixed in the positioning and fixing cavity through the hasp, and the hasp and the protrusion are matched to be connected with the air cylinder body and the middle body through the inclined face design forming the included angle of 13 degrees with the vertical face. The matching strength is remarkably improved, braking impact and vibration are effectively resisted, the outer wall of the air cylinder body is punched at a time, the grooves designed in advance inwards form the hasps, the hasps are integrally formed, and the overall strength and stability are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of brake chambers, and specifically to a novel piston-type brake chamber formed by a snap fastener in one piece. Background Technology

[0002] As a core component of the vehicle braking system, the piston-type brake chamber converts compressed air into mechanical thrust to drive the braking mechanism and achieve vehicle braking. In the traditional piston-type brake chamber structure, the connection between the cylinder block and the intermediate body is crucial. In existing technology, some piston-type brake chambers use a combination of beveled latches and protrusions to connect the cylinder block and the intermediate body, with a common bevel angle of 45 degrees. However, practical experience has shown that the 45-degree bevel is insufficient in terms of fit strength. During brake chamber operation, the strong impact forces generated by frequent vehicle braking and the continuous vibrations during driving make it difficult for the friction and clamping forces provided by the 45-degree bevel to stably resist these external forces for extended periods. This can lead to loosening of the fit between the cylinder block and the intermediate body, thus affecting the overall performance of the brake chamber. Utility Model Content

[0003] To address the problems of the prior art, this utility model provides a novel piston-type brake chamber formed in one piece with a snap fastener.

[0004] The purpose of this utility model can be achieved through the following technical solution: A novel piston-type brake chamber with one-piece snap fastener includes a cylinder body and a middle body. The right end of the middle body is provided with a protrusion, and the left end of the cylinder body is provided with a mating cavity. The right side of the mating cavity includes a positioning and fixing cavity. The mating cavity is provided with a snap fastener located on the left side of the positioning and fixing cavity. The right side of the snap fastener and the left side of the protrusion are both at a 13-degree angle to the vertical plane. The protrusion is clamped and fixed in the positioning and fixing cavity by the snap fastener.

[0005] In a further improvement, the cylinder body is provided with a groove, which is formed by stamping the outer wall of the cylinder body in one go, so that the groove forms an inward buckle.

[0006] As a further improvement, the bottom ring of the buckle is provided with an arc-shaped reinforcing rib, and the reinforcing rib has a groove inside.

[0007] In a further improvement, the buckle and the raised ring are provided with ten sets.

[0008] In a further improvement, both the right side of the protrusion and the right side of the positioning and fixing cavity are rightward guide inclined surfaces.

[0009] In a further improvement, an annular groove is provided on the right end of the middle body, located to the left of the buckle. An O-ring is provided in the annular groove, and the O-ring is located inside the cylinder body to seal the connection between the middle body and the cylinder body.

[0010] Compared with the prior art, the beneficial effects of the novel piston-type brake chamber formed by one-piece snap fastener of this utility model are as follows:

[0011] Abandoning the traditional 45-degree slope, an innovative design using a 13-degree angled slope to the vertical plane is employed for the latching and protrusion connection between the cylinder block and the middle body. This innovation allows for the generation of a larger component force perpendicular to the slope under the same external force, significantly increasing friction and clamping force, substantially improving fit strength, effectively resisting braking impacts and vibrations, ensuring a stable connection between the cylinder block and the middle body, and greatly enhancing the overall performance of the brake chamber and driving safety.

[0012] By stamping the outer wall of the cylinder body in one go, the pre-designed groove is folded inward to form a latch, achieving one-piece molding of the latch. This innovation not only improves production efficiency and reduces production costs, but also makes the latch and cylinder body form a stable integrated structure. Compared with latches that are connected later, it significantly enhances the overall strength and stability, and effectively ensures the clamping and fixing effect of the central body protrusion. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention.

[0014] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0015] Figure 3 for Figure 2 Schematic diagram of the enlarged part

[0016] Figure 4 This is a schematic diagram of the cylinder block in this utility model.

[0017] Figure 5 This is a schematic diagram of the structure of the central body in this utility model.

[0018] In the diagram, 1-cylinder body, 11-fitting cavity, 12-positioning and fixing cavity, 13-groove one, 2-middle body, 21-protrusion, 22-annular groove, 23-O-ring, 3-clasp, 31-arc reinforcing rib, 32-groove two. Detailed Implementation

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; unless otherwise expressly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, they can refer to fixed connections or detachable connections, etc. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0020] The following describes the embodiments and appendices. Figures 1-5 The technical solution of this utility model will be further described below.

[0021] Example 1

[0022] A novel piston-type brake chamber with a one-piece snap fastener includes a cylinder body 1 and a middle body 2. The right end of the middle body 2 is provided with a protrusion 21, and the left end of the cylinder body 1 is provided with a mating cavity 11. The right side of the mating cavity 11 includes a positioning and fixing cavity 12. The mating cavity 11 is provided with a snap fastener 3 located on the left side of the positioning and fixing cavity 12. The right side of the snap fastener 3 and the left side of the protrusion 21 are both at an angle of 13 degrees to the vertical plane. The protrusion 21 is clamped and fixed in the positioning and fixing cavity 12 by the snap fastener 3.

[0023] like Figures 1-5 As shown, the working principle of this utility model is as follows:

[0024] During installation, the protrusion 21 of the middle body 2 is aligned with the mating cavity 11 of the cylinder body 1 and inserted. As the insertion depth increases, the 13-degree inclined surfaces interact, and the latch 3 undergoes elastic deformation under outward pressure. When the protrusion 21 is fully inserted into the positioning and fixing cavity 12, the latch 3 tightly holds the protrusion 21 with its own elastic restoring force, thus achieving a stable connection between the cylinder body 1 and the middle body 2.

[0025] From a mechanical perspective, a 13-degree inclined plane, compared to a 45-degree inclined plane, generates a larger component of force perpendicular to the inclined plane under the same external force. According to the friction formula F = μN (where F is the frictional force, μ is the coefficient of friction, and N is the normal force), the larger normal force N significantly increases the frictional force F. Furthermore, when subjected to external impact, the angle design of the 13-degree inclined plane better decomposes the external force into forces parallel and perpendicular to the inclined plane, resulting in a tighter fit between the buckle 3 and the protrusion 21, and stronger resistance to external forces.

[0026] Compared to the traditional design using a 45-degree slope, the 13-degree slope connection in this embodiment significantly improves the fit strength. During the operation of the brake chamber, facing the strong impact force generated by frequent vehicle braking and the continuous vibration during driving, the strong friction and tight clamping force generated by the 13-degree slope can effectively resist these external forces, ensuring that the cylinder block 1 and the middle body 2 always maintain a stable connection, greatly reducing the risk of loosening. This high-strength fit significantly improves the overall performance of the brake chamber, providing a strong guarantee for the stable operation of the vehicle braking system and greatly improving driving safety.

[0027] As a further preferred embodiment, the cylinder body 1 has a groove 13 on its upper ring. The groove 13 is formed inwards by a one-time stamping process on the outer wall of the cylinder body 1. Pressure is applied using a stamping die, causing plastic deformation of the outer wall material of the cylinder body 1. The material at the groove 13 is recessed inwards, directly forming the snap fastener 3. This one-time stamping process utilizes the plasticity of the material and the directional force of the die to precisely shape the snap fastener; it significantly improves production efficiency and reduces costs. Furthermore, the snap fastener 3 and the cylinder body 1 are an integral structure, offering better integrity and structural strength compared to later-connected snap fasteners. This allows for better resistance to external forces, ensuring the clamping and fixing of the protrusion 21 on the middle body 2, and improving the stability of the fit between the cylinder body 1 and the middle body 2.

[0028] As a further preferred embodiment, the bottom ring of the buckle 3 is provided with an arc-shaped reinforcing rib 31, and the reinforcing rib 31 has a groove 32 inside. The arc-shaped reinforcing rib 31 is located at the bottom of the buckle 3, and the arc structure can effectively disperse the stress borne by the buckle 3 when clamping the protrusion 21, thereby enhancing the structural strength. The groove 32 inside the reinforcing rib 31, based on the principle of improving bending and torsional resistance of hollow structures in material mechanics, further enhances the mechanical properties, allowing the buckle 3 to better maintain its shape under force, thereby significantly improving the structural strength of the buckle 3. In long-term use, the buckle 3 can maintain good clamping performance, reduce the risk of loosening due to deformation, extend the service life of the brake chamber, and improve the reliability of the braking system.

[0029] As a further preferred embodiment, the latches 3 and protrusions 21 are arranged in ten sets in a ring. All ten latches around the cylinder body 1 are formed by one-time stamping, ensuring good positional consistency and high efficiency. The multiple sets of latches 3 and protrusions 21 are evenly distributed in a ring, with each set bearing part of the connecting force during connection. The evenly distributed connection points in the circumferential direction can evenly disperse the torsional force, tensile force, and compressive force during the operation of the brake chamber, avoiding excessive stress at a single point.

[0030] In a further preferred embodiment, both the right side of the protrusion 21 and the right side of the positioning and fixing cavity 12 are right-facing guide inclined surfaces. When installing the middle body 2 onto the cylinder body 1, the guide inclined surfaces on the right side of the protrusion 21 and the positioning and fixing cavity 12 function. The inclined surfaces contact first, guiding the protrusion 21 accurately into the positioning and fixing cavity 12, reducing installation jamming and collisions, and making the process smoother. During operation, the inclined surfaces guide the flow of the internal medium, reducing local stress concentration.

[0031] As a further preferred embodiment, the right end of the middle body 2 is provided with an annular groove 22 located to the left of the buckle 3. An O-ring 23 is provided in the annular groove 22, and the O-ring 23 is located inside the cylinder body 1, sealing the connection between the middle body 2 and the cylinder body 1. With the O-ring 23 installed in the annular groove 22 at the right end of the middle body 2, after the cylinder body 1 and the middle body 2 are connected, the O-ring 23 is compressed and deformed, filling the tiny gaps at the connection. When the brake chamber is working, the internal medium pressure causes the O-ring 23 to fit tightly against the contact surface, preventing medium leakage.

[0032] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A novel piston-type brake chamber formed in one piece with a snap fastener, characterized in that, The device includes a cylinder body and a middle body. The right end of the middle body is provided with a protrusion, and the left end of the cylinder body is provided with a mating cavity. The right side of the mating cavity includes a positioning and fixing cavity. The mating cavity is provided with a buckle located on the left side of the positioning and fixing cavity. The right side of the buckle and the left side of the protrusion are both at a 13-degree angle to the vertical plane. The protrusion is clamped and fixed in the positioning and fixing cavity by the buckle.

2. The novel one-piece formed piston brake chamber according to claim 1, characterized in that, The cylinder body has a groove on its upper ring. The groove is formed by stamping the outer wall of the cylinder body in one go, so that the groove forms an inward buckle.

3. The novel one-piece formed piston brake chamber according to claim 1, characterized in that, The bottom ring of the buckle is provided with an arc-shaped reinforcing rib, and the reinforcing rib has a groove inside.

4. The novel one-piece formed piston brake chamber according to claim 1, characterized in that, The buckle and the raised ring are provided in ten sets.

5. A novel piston-type brake chamber formed in one piece with a snap fastener according to claim 1, characterized in that, Both the right side of the protrusion and the right side of the positioning and fixing cavity are rightward guide inclined surfaces.

6. The novel one-piece formed piston brake chamber according to claim 1, characterized in that, The right end of the middle body is provided with an annular groove located to the left of the buckle. An O-ring is provided in the annular groove. The O-ring is located inside the cylinder body and seals the connection between the middle body and the cylinder body.

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