Novel brake cylinder

Abstract

The invention provides a novel brake cylinder which comprises a cylinder body, a piston is slidably arranged in the cylinder body in a matched mode, a push rod is arranged at the output end of the piston, the tail end of the push rod is connected with an anti-skid assembly, the anti-skid assembly comprises a first shell fixed to the push rod, two sets of symmetrically-arranged sliding plates are slidably arranged in the first shell in a limited mode, and moving plates are arranged in the middles of the sliding plates. A sliding block is hinged to the tail end of the movable plate and slides on the inner wall of the first shell in a limited mode. A connecting rod is hinged to the middle of the movable plate, elastic contact plates are hinged to the other end of the connecting rod, and the two elastic contact plates are arranged in the second shell in a matched mode and connected through a reset spring. A plurality of air bags are arranged between the first shell and the second shell, and the air bags are communicated with the first shell through air guide pipes. According to the anti-skid brake device, the anti-skid assembly is arranged, so that the contact area between the end of the push rod and the brake pad is increased, the push rod is not prone to sliding, braking failure caused by sliding is avoided, and the driving safety is greatly improved.

Description

Technical Field

[0001] The invention mainly relates to the technical field of pump bodies, and in particular to a novel brake cylinder. Background Art

[0002] The brake cylinder is a type of pump body, also called the brake cylinder. It is an indispensable chassis brake part of the braking system. Its main function is to push the brake pads, which rub against the brake drum to reduce the vehicle speed and stop it. When the brake is stepped on, the oil outlet opens and the oil inlet closes. Under the pressure of the pump piston, the brake oil pipe is squeezed out of the oil pipe and flows to each brake cylinder to perform the braking function. The piston inside the cylinder begins to move under the hydraulic pressure to push the brake pads. When the brake pedal is released, the oil outlet in the master brake cylinder will close and the oil inlet will open, allowing the brake oil to flow back from each brake cylinder to the master brake cylinder and return to its original state.

[0003] The existing brake cylinder uses a piston to push the brake pad through a push rod, and the brake pad rubs against the brake drum to reduce the speed and stop the vehicle. However, the push rod at the front end of the piston has a small diameter and the contact area with the brake pad is limited. After long-term use, the brake pad and the push rod will slide during the braking process, affecting normal use. On this basis, and in order to meet the diversified development of the market, a brake cylinder with high safety is proposed. Summary of the invention

[0004] 1. Technical problem to be solved by the invention: The present invention provides a novel brake cylinder to solve the technical problems existing in the above-mentioned background technology.

[0005] 2. Technical solution: In order to achieve the above object, the technical solution of the present invention is: A novel brake cylinder comprises a pump body, a piston is slidably provided in the pump body, a push rod is provided at the output end of the piston, the end of the push rod is connected to an anti-skid component, the anti-skid component comprises a shell 1 fixed to the push rod, two groups of symmetrically arranged slide plates are limitedly slidably provided in the shell 1, a moving plate is provided in the middle of the slide plate, a slider is hinged at the end of the moving plate, and the slider is limitedly slidable on the inner wall of the shell 1; A connecting rod is hinged at the middle of the movable plate, and an elastic contact plate is hinged at the other end of the connecting rod. Two groups of elastic contact plates are adapted to be arranged in the second housing, and the two groups of elastic contact plates are connected by a return spring. A plurality of air bags are arranged between the shell 1 and the shell 2, and the air bags are connected with the shell 1 through an air guide tube; During the braking process, hydraulic oil enters the pump body, and the piston pushes the push rod to move toward the brake pad. During the movement of the push rod, it will drive shell one and shell two to move. Shell two moves to squeeze the brake pad and continues to push the push rod under the action of the piston. At this time, shell one squeezes shell two, and the gas generated by the squeezing of the airbag is input into shell one through the air duct, causing the two groups of slides to move toward the two ends of shell one. During the movement of the two groups of slides, the moving plate will be driven to move in the direction of shell two. The elastic contact plate moves toward the two ends of shell two under the pull of the connecting rod, thereby increasing the contact area with the brake pad and achieving a good anti-skid effect.

[0006] A further improvement is that sleeves are provided at both ends of the pump body, and anti-slip components are provided inside the sleeves.

[0007] A further improvement is that the slide plate is arranged obliquely, and two ends of the slide plate are in contact with two inner walls of the shell respectively.

[0008] A further improvement is that the inner walls of the top and bottom ends of the housing 1 are both provided with sliding grooves adapted to the sliding blocks.

[0009] A further improvement is that a groove for connecting rod movement is provided on the side of the housing 1 close to the housing 2.

[0010] A further improvement is that a fixing plate is provided on one side of the pump body, the fixing plate is provided with an annular groove, and the surface of the fixing plate is provided with an oil inlet 1 and an oil inlet 2 which are connected to the pump body and have different sizes.

[0011] A further improvement is that: the side of the fixed plate is provided with an adjustment component adapted thereto, the adjustment component includes a frustum arranged on the surface of the fixed plate, the surface of the frustum is provided with oil inlet pipe 1 and oil inlet pipe 2, the oil inlet pipe 1 and oil inlet pipe 2 are respectively connected to oil inlet port 1 and oil inlet port 2.

[0012] A further improvement is that an annular boss is provided at the bottom of the truncated cone, and the annular boss is slidably matched with the annular groove.

[0013] A further improvement is that filters are provided at the ends of the first oil inlet pipe and the second oil inlet pipe.

[0014] 3. Beneficial effects: Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention increases the contact area between the end of the push rod and the brake pad by providing an anti-skid component, making it less likely to slide, avoiding brake failure caused by sliding, and greatly improving driving safety; The present invention can adjust the amount of oil entering the brake cylinder body as needed by arranging the adjustment mechanism, thereby improving its practical performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial cross-sectional structural schematic diagram of the present invention; Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle; Figure 4 For the present invention Figure 3 The enlarged structural diagram at B in the middle; Figure 5 It is a schematic diagram of the connection relationship of the fixing plate of the present invention; Figure 6 It is a schematic diagram of the structure of the regulating component of the present invention; Figure 7 For the present invention Figure 6 Cross-sectional view of the center adjustment assembly.

[0016] Reference numerals: 1- pump body; 2- piston; 3- push rod; 4- anti-skid assembly; 41- shell one; 42- slide plate; 43- moving plate; 44- slider; 45- connecting rod; 46- elastic contact plate; 47- shell two; 48- return spring; 49- air bag; 410- air guide tube; 411- slide groove; 412- slot; 5- sleeve; 6- fixed plate; 61- annular groove; 62- oil inlet one; 63- oil inlet two; 7- adjustment assembly; 71- frustum; 711- annular boss; 72- oil inlet pipe one; 73- oil inlet pipe two; 74- filter screen. DETAILED DESCRIPTION

[0017] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0018] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] It should be noted that the structures not introduced in the present invention all adopt the existing technology because they do not involve the design points and improvement directions of the present invention.

[0020] The present embodiment provides a novel brake cylinder, including a pump body 1, a piston 2 is slidably provided in the pump body 1, a push rod 3 is provided at the output end of the piston 2, the end of the push rod 3 is connected to an anti-skid component 4, the anti-skid component 4 includes a shell 41 fixed to the push rod 3, two groups of symmetrically arranged slide plates 42 are limitedly slidable in the shell 41, a moving plate 43 is provided in the middle of the slide plate 42, a slider 44 is hinged at the end of the moving plate 43, and the slider 44 is limitedly slidable on the inner wall of the shell 41; A connecting rod 45 is hinged in the middle of the moving plate 43, and an elastic contact plate 46 is hinged at the other end of the connecting rod 45. Two sets of elastic contact plates 46 are adapted to be arranged in the second housing 47, and the two sets of elastic contact plates 46 are connected by a return spring 48; A plurality of air bags 49 are provided between the shell 1 41 and the shell 2 48, and the air bags 49 are connected to the shell 1 41 through an air guide tube 410; During the braking process, hydraulic oil enters the pump body 1, and the piston 2 pushes the push rod 3 to move in the direction of the brake pad. During the movement of the push rod 3, the housing 1 41 and the housing 2 47 are driven to move. The housing 2 47 moves to squeeze the brake pad and continues to push the push rod 3 under the action of the piston 2. At this time, the housing 1 41 squeezes the housing 2 47, and the gas generated by the squeezing of the airbag 49 is input into the housing 1 41 through the air guide pipe 410, so that the two groups of slide plates 42 move toward the two ends of the housing 1 41. During the movement of the two groups of slide plates 42, the moving plate 43 is driven to move in the direction of the housing 2 47. At this time, the slider 44 performs limited sliding on the inner wall of the housing 1 41, and the elastic contact plate 46 moves to the two ends of the housing 2 47 under the pull of the connecting rod 45. After the elastic contact plate 46 is pulled out of the housing 2 47, it will return to its original state, thereby increasing the contact area with the brake pad and greatly improving the anti-skid effect. After braking, under the action of the reset spring 48, the two sets of elastic contact plates 46 enter the shell 2 47. At this time, the connecting rod 45 will push the movable plate 43 to reset and wait for the next use. It should be noted that after long-term use, even if the anti-skid component 4 cannot be reset in the later stage, it will not affect the braking effect.

[0021] Through the above technical solution, the present invention increases the contact area between the end of the push rod 3 and the brake pad by setting the anti-skid component 4, making it less likely to slide, avoiding brake failure caused by sliding, and greatly improving driving safety.

[0022] In a preferred embodiment, sleeves 5 are provided at both ends of the pump body 1 , and anti-skid components 4 are provided inside the sleeves 5 . The anti-skid components 4 are symmetrically arranged around the center of the pump body 1 .

[0023] In a preferred embodiment, the slide plate 42 is arranged at an angle, and the two ends of the slide plate 42 are respectively in contact with the inner walls on both sides of the shell 41. This arrangement method ensures that when the slide plate 42 is subjected to the ventilation effect of the airbag 49, the slide plate 42 moves toward the two ends of the shell 41 and pushes the movable plate 43 to move toward the direction of the shell 2 47, thereby moving and stretching the elastic contact plate 46 toward the two ends of the shell 2 47 under the pull of the connecting rod 45.

[0024] In a preferred embodiment, the inner walls at the top and bottom ends of the shell 1 41 are provided with slide grooves 411 adapted to the slider 44, and the slider 44 slides in the corresponding slide grooves 411 to ensure that the sliding plate 42 pushes the moving plate 43 to move toward the direction of the shell 2 47 during the movement toward the two ends of the inner wall of the shell 1.

[0025] In a preferred embodiment, a groove 412 for moving the connecting rod 45 is provided on the side of the shell 1 41 close to the shell 2 47. Since the two ends of the connecting rod 45 are respectively hinged to the movable plate 43 and the elastic contact plate 46, the groove 412 is provided to ensure the convenience of moving the connecting rod 45.

[0026] In a preferred embodiment, a fixing plate 6 is provided on one side of the pump body 1, the fixing plate 6 is provided with an annular groove 61, and an oil inlet 1 62 and an oil inlet 2 63 which are connected to the pump body 1 and have different sizes are provided on the surface of the fixing plate 6.

[0027] In a preferred embodiment, the side of the fixed plate 6 is provided with an adjustment component 7 adapted thereto, and the adjustment component 7 includes a frustum 71 arranged on the surface of the fixed plate 6, and the surface of the frustum 71 is provided with an oil inlet pipe 1 72 and an oil inlet pipe 2 73, and the oil inlet pipe 1 72 and the oil inlet pipe 2 73 are respectively connected to the oil inlet port 1 62 and the oil inlet port 2 63.

[0028] By implementing the above technical solution, when the brake cylinder is working, when we need to use a large flow of hydraulic oil, we can connect the oil pipe from the brake master cylinder to the oil inlet pipe, and the hydraulic oil will reach the pump body 1 from the oil inlet pipe 1 72 through the oil inlet 1 62, and then push the piston 2 to push the brake pad through the anti-skid component 4 to achieve braking. Conversely, it is only necessary to connect the oil pipe from the brake master cylinder to the oil inlet pipe 2 73 to achieve a small flow of hydraulic oil.

[0029] In a preferred embodiment, an annular boss 711 is provided at the bottom of the truncated table 71, and the annular boss 711 is slidably matched with the annular groove 61. By inserting the annular boss 711 into the annular groove 61, a sealing ring is provided around the two. At this time, the oil inlet pipe 1 72 cooperates with the oil inlet port 1 62, and the oil inlet pipe 2 73 cooperates with the oil inlet port 2 63, so that the hydraulic oil can enter the pump body 1 from the external oil pipe. This arrangement makes it convenient to install and disassemble the pump body oil circuit at a later stage.

[0030] In a preferred embodiment, filters 74 are provided at the ends of the first oil inlet pipe 72 and the second oil inlet pipe 73 to facilitate filtering of hydraulic oil containing impurities.

[0031] The above-described embodiments only express a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A novel brake cylinder, comprising a pump body, a piston slidably disposed in the pump body, and a push rod disposed at the output end of the piston, characterized in that: The end of the push rod is connected to the anti-skid component, and the anti-skid component includes a shell 1 fixed to the push rod, and two groups of symmetrically arranged slide plates are limitedly slidable in the shell 1, and a moving plate is provided in the middle of the slide plate, and a slider is hinged at the end of the moving plate, and the slider is limitedly slidable on the inner wall of the shell 1; A connecting rod is hinged in the middle of the movable plate, and an elastic contact plate is hinged at the other end of the connecting rod. Two groups of elastic contact plates are adapted to be arranged in the second housing, and the two groups of elastic contact plates are connected by a return spring. A plurality of air bags are arranged between the shell 1 and the shell 2, and the air bags are connected with the shell 1 through an air guide tube; During the braking process, hydraulic oil enters the pump body, and the piston pushes the push rod to move toward the brake pad. During the movement of the push rod, it will drive shell one and shell two to move. Shell two moves to squeeze the brake pad and continues to push the push rod under the action of the piston. At this time, shell one squeezes shell two, and the gas generated by the squeezing of the airbag is input into shell one through the air duct, causing the two groups of slides to move toward the two ends of shell one. During the movement of the two groups of slides, the moving plate will be driven to move in the direction of shell two. The elastic contact plate moves toward the two ends of shell two under the pull of the connecting rod, thereby increasing the contact area with the brake pad and achieving a good anti-skid effect.

2. A novel brake cylinder according to claim 1, characterized in that: Both ends of the pump body are provided with sleeves, and anti-skid components are arranged inside the sleeves.

3. A novel brake cylinder according to claim 1, characterized in that: The slide plate is arranged in an inclined manner, and two ends of the slide plate are respectively in contact with two inner walls of the shell.

4. A novel brake cylinder according to claim 1, characterized in that: The inner walls of the top end and the bottom end of the shell body 1 are both provided with sliding grooves adapted to the sliding block.

5. The novel brake cylinder according to claim 1 is characterized in that: The side of the shell 1 close to the shell 2 is provided with a slot for connecting rod movement.

6. A novel brake cylinder according to claim 1, characterized in that: A fixing plate is provided at one side of the pump body, an annular groove is formed on the fixing plate, and an oil inlet 1 and an oil inlet 2 of different sizes which are connected to the pump body are provided on the surface of the fixing plate.

7. A novel brake cylinder according to claim 6, characterized in that: The side of the fixed plate is provided with an adjustment component adapted thereto, and the adjustment component includes a frustum arranged on the surface of the fixed plate, and the surface of the frustum is provided with oil inlet pipe 1 and oil inlet pipe 2, and the oil inlet pipe 1 and oil inlet pipe 2 are respectively connected to oil inlet port 1 and oil inlet port 2.

8. The novel brake cylinder according to claim 7 is characterized in that: An annular boss is arranged at the bottom of the truncated cone, and the annular boss is slidably matched with the annular groove.

9. A novel brake cylinder according to claim 7, characterized in that: Filters are provided at the ends of the first oil inlet pipe and the second oil inlet pipe.

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