Vacuum booster made of aluminum material

Abstract

The utility model relates to the technical field of automobile vacuum boosters, and discloses an aluminum material vacuum booster, which comprises an upper mounting pipe and an upper extrusion mechanism, the top of the upper mounting pipe is fixedly connected with an upper connecting pipe, the inner wall of the upper connecting pipe is sleeved with an upper extrusion pipe, the outer wall of the upper extrusion pipe is fixedly connected with an extrusion disc, and the extrusion disc is fixedly connected with a lower connecting pipe. An isolation soft belt is arranged on the outer wall of the extrusion disc, a second sliding groove is formed in the outer wall of the extrusion disc, the second sliding groove and the isolation soft belt are distributed on the outer wall of the extrusion disc in a circumferential array shape, and a backflow prevention valve is fixedly connected to the side, away from the upper extrusion pipe, of the extrusion disc. According to the vacuum booster made of the aluminum material, the isolation lining is arranged in the upper mounting pipe, so that the sealing performance of equipment is enhanced, and the isolation soft belt and the anti-backflow valve are arranged outside the extrusion disc, so that when the equipment works, external air backflow can be effectively avoided, and the situation that the vacuum environment is damaged can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile vacuum boosters, in particular to a vacuum booster made of aluminum. Background Art

[0002] The vacuum booster is a brake servo device in the brake system of light vehicles, cars and micro vehicles, and is a key component in the automobile brake system. Its working principle is to use the vacuum generated by the working gasoline engine, or the vacuum generated by the vacuum pump installed on the diesel engine. When the driver steps on the brake pedal, the thrust generated by the different pressure differences between the two working chambers in the vacuum booster is amplified according to the designed proportion to push the brake master cylinder piston, compress the brake fluid in the brake master cylinder to generate hydraulic pressure, and then transport it to the wheel brake to make the brake shoe contact with the wheel hub or the brake pad contact with the wheel brake disc, thereby generating friction resistance to control the vehicle to slow down or brake.

[0003] Traditionally, the sealing between the diaphragm and the valve body is mostly achieved by embedding the inner hole of the diaphragm in the annular groove of the valve body. Due to the annular groove of the valve body, the injection mold has a very complex structure and high manufacturing cost due to the demoulding problem. This structure has a simple mold structure and low manufacturing cost, but sometimes it cannot reliably guarantee the sealing between the front and rear cavities, affecting the sealing performance of the vacuum booster. Therefore, a vacuum booster made of aluminum is proposed. Utility Model Content

[0004] The utility model provides the following technical solution: a vacuum booster made of aluminum material, comprising an upper mounting tube and an upper extrusion mechanism, the top of the upper mounting tube is fixedly connected with an upper connecting tube, the inner wall of the upper connecting tube is sleeved with an upper extrusion tube, the outer wall of the upper extrusion tube is fixedly connected with an extrusion disk, the outer wall of the extrusion disk is provided with an insulating soft belt, the outer wall of the extrusion disk is provided with a second slide groove, the second slide groove and the insulating soft belt are distributed in a circular array on the outer wall of the extrusion disk, the extrusion disk is fixedly connected with an anti-backflow valve on the side away from the upper extrusion tube, the inner wall of the anti-backflow valve is fixedly connected with a block, the inner wall of the anti-backflow valve is sleeved with a rotating shaft, the outer wall of the rotating shaft is fixedly connected with a closing plate, and the closing plate is rotatably connected to the anti-backflow valve.

[0005] As a preferred technical solution of the utility model, the inner wall of the upper mounting tube is sleeved with an isolation bushing, the inner wall of the isolation bushing is provided with a plurality of limit platforms, and the plurality of limit platforms are distributed in a circular array on the inner wall of the isolation bushing, and the isolation bushing is slidably connected to the extrusion disk.

[0006] As a preferred technical solution of the utility model, the upper mounting tube is provided with a lower mounting tube on the side away from the upper connecting tube, the outer wall of the lower mounting tube is fixedly connected to the lower connecting tube, the outer wall of the upper mounting tube is sleeved with a limiting ring, the outer wall of the limiting ring is fixedly connected with a fixing buckle, the inner wall of the lower connecting tube is provided with a lower lifting mechanism, and the outer wall of the lower mounting tube is provided with a vacuum exhaust mechanism.

[0007] As a preferred technical solution of the utility model, the inner wall of the lower connecting tube is sleeved with a lower lifting column, and the lower lifting column is fixedly connected with an extrusion disc on the side away from the lower connecting tube. The outer wall of the extrusion disc is provided with a first sliding groove, and the first sliding grooves are distributed in a circular array on the outer wall of the extrusion disc, and the extrusion disc is slidably connected to the limit platform.

[0008] As a preferred technical solution of the utility model, the inner wall of the lower mounting tube is sleeved with a through tube, the outer wall of the through tube is fixedly connected to the exhauster body, the outer wall of the exhauster body is fixedly connected to the exhaust pipe, and the through tube is fixedly connected to a connecting recessed plate on the side away from the exhauster body.

[0009] As a preferred technical solution of the utility model, the outer wall of the extrusion disk is provided with a telescopic rod, the outer wall of the telescopic rod is sleeved with a reset spring, and the telescopic rod is distributed in a circular array on the outer wall of the extrusion disk.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The vacuum booster made of aluminum material has an isolation bushing arranged in the upper mounting tube to enhance the sealing performance of the equipment, and an isolation soft belt and an anti-backflow valve are arranged outside the extrusion disk, so that the equipment can effectively prevent the external air from flowing back when working, which would cause the vacuum environment to be destroyed.

[0012] 2. The vacuum booster made of aluminum material has multiple limit platforms arranged in the isolation bushing, so that the lower lifting mechanism and the upper extrusion mechanism can be limited when the equipment is working to prevent them from being separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the three-dimensional structure of a vacuum booster made of aluminum;

[0014] Figure 2 A schematic diagram of the structure of a lower mounting tube in a vacuum booster made of aluminum;

[0015] Figure 3 A schematic diagram of the structure of a telescopic rod in a vacuum booster made of aluminum;

[0016] Figure 4A schematic diagram of the structure of an upper extrusion mechanism in a vacuum booster made of aluminum;

[0017] Figure 5 A schematic diagram of the structure of an anti-backflow valve in a vacuum booster made of aluminum;

[0018] Figure 6 The figure is a schematic diagram of the structure of the lower lifting mechanism of a vacuum booster made of aluminum material.

[0019] In the figure: 1. upper mounting tube; 2. lower mounting tube; 3. upper connecting tube; 4. lower connecting tube; 5. limiting ring; 6. fixing buckle; 7. vacuum exhaust mechanism; 71. exhauster body; 72. exhaust pipe; 73. through pipe; 74. connecting concave plate; 8. lower lifting mechanism; 81. lower lifting column; 82. squeezing disc; 83. first slide; 9. isolating bushing; 10. limiting platform; 11. telescopic rod; 12. reset spring; 13. upper squeezing mechanism; 131. upper squeezing tube; 132. squeezing disc; 133. isolating soft belt; 134. second slide; 135. anti-backflow valve; 136. block; 137. closing plate; 138. rotating shaft. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-6A vacuum booster made of aluminum material comprises an upper mounting tube 1 and an upper extrusion mechanism 13, the top of the upper mounting tube 1 is fixedly connected with an upper connecting tube 3, the inner wall of the upper connecting tube 3 is sleeved with an upper extrusion tube 131, the outer wall of the upper extrusion tube 131 is fixedly connected with an extrusion disk 132, the outer wall of the extrusion disk 132 is provided with an insulating soft belt 133, the outer wall of the extrusion disk 132 is provided with a second slide groove 134, the second slide groove 134 and the insulating soft belt 133 are both distributed in a circumferential array on the outer wall of the extrusion disk 132, the extrusion disk 132 is fixedly connected with an anti-backflow valve 135 on the side away from the upper extrusion tube 131, the inner wall of the anti-backflow valve 135 is fixedly connected with a stopper 136, the inner wall of the anti-backflow valve 135 is sleeved with a rotating shaft 138, and the outer wall of the rotating shaft 138 is fixedly connected with The sealing plate 137 is rotatably connected to the anti-backflow valve 135, wherein the block 136 arranged in the anti-backflow valve 135 enables the rotating shaft 138 to be blocked by the block 136 when the device is performing vacuum extraction, so that the device can effectively avoid leakage of the device, and the multiple isolation soft belts 133 arranged outside the extrusion disk 132 also enhance the sealing performance of the device. The inner wall of the upper mounting tube 1 is sleeved with an isolation bushing 9, and the inner wall of the isolation bushing 9 is provided with a plurality of limit platforms 10, and the plurality of limit platforms 10 are distributed in a circular array on the inner wall of the isolation bushing 9, and the isolation bushing 9 is slidably connected to the extrusion disk 132, wherein the isolation bushing 9 can play a role of partition protection inside the device, and a limit plate 133 is arranged inside the isolation bushing 9. The positioning platform 10 enables the limiting platform 10 to limit the extrusion disk 132 when it is lifted and lowered, and can also effectively enhance the working efficiency of the equipment. The upper mounting tube 1 is provided with a lower mounting tube 2 on the side away from the upper connecting tube 3. The outer wall of the lower mounting tube 2 is fixedly connected with the lower connecting tube 4. The outer wall of the upper mounting tube 1 is sleeved with a limiting ring 5. The outer wall of the limiting ring 5 is fixedly connected with a fixing buckle 6. The inner wall of the lower connecting tube 4 is provided with a lower lifting mechanism 8. The outer wall of the lower mounting tube 2 is provided with a vacuum exhaust mechanism 7. Among them, the limiting ring 5 and the fixing buckle 6 can enhance the connection stability between the upper mounting tube 1 and the lower mounting tube 2. When the equipment is working, the equipment can fasten the upper mounting tube 1 and the lower mounting tube 2. The inner wall of the lower connecting tube 4 is sleeved with a lower lifting column 81. The lower lifting column 81 is fixedly connected with an extrusion disc 82 on the side away from the lower connecting tube 4. The outer wall of the extrusion disc 82 is provided with a first slide groove 83. The first slide groove 83 is distributed in a circular array on the outer wall of the extrusion disc 82. The extrusion disc 82 is slidably connected with the limit platform 10, wherein the extrusion disc 82 can be sleeved with the isolation bushing 9 when the equipment is working, and the extrusion disc 82 can also effectively seal the isolation bushing 9 when the equipment is working. The inner wall of the lower mounting tube 2 is sleeved with a through pipe 73, and the outer wall of the through pipe 73 is fixedly connected with the exhauster body 71, and the outer wall of the exhauster body 71 is fixedly connected with the exhaust pipe 72. The through pipe 73 is fixedly connected with a connecting concave disc 74 on the side away from the exhauster body 71, wherein,When the exhauster body 71 is working, the air in the connecting concave disc 74 can be sucked out through the exhauster body 71 and discharged through the exhaust pipe 72, so that the device can suck out the air in the isolation bushing 9. The outer wall of the extrusion disc 132 is provided with a telescopic rod 11, and the outer wall of the telescopic rod 11 is sleeved with a reset spring 12, and the telescopic rod 11 is distributed on the outer wall of the extrusion disc 132 in a circumferential array. Among them, the reset spring 12 sleeved on the outer surface of the telescopic rod 11 enables the reset spring 12 to reset the extrusion disc 132 through elastic force after the device performs the sealing work.

[0022] Working principle: when the device is needed, by connecting the upper connecting pipe 3 and the lower connecting pipe 4 to the external pipeline, when the device starts to work, the exhauster body 71 can suck out the control in the isolation sleeve 9 through the connecting concave disc 74, and discharge it through the exhaust pipe 72, and the squeezing disc 82 will press down and suck out the air in the isolation sleeve 9.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum booster made of aluminum material, comprising an upper mounting tube (1) and an upper extrusion mechanism (13), characterized in that: The top of the upper mounting tube (1) is fixedly connected to an upper connecting tube (3), the inner wall of the upper connecting tube (3) is sleeved with an upper extrusion tube (131), the outer wall of the upper extrusion tube (131) is fixedly connected to an extrusion disk (132), the outer wall of the extrusion disk (132) is provided with an insulating soft belt (133), the outer wall of the extrusion disk (132) is provided with a second slide groove (134), and the second slide groove (134) and the insulating soft belt (133) are both in a circumferential array shape. The anti-backflow valve (135) is fixedly connected to the outer wall of the extrusion disk (132) at a side of the extrusion disk (132) away from the upper extrusion tube (131), the inner wall of the anti-backflow valve (135) is fixedly connected to a stopper (136), the inner wall of the anti-backflow valve (135) is sleeved with a rotating shaft (138), the outer wall of the rotating shaft (138) is fixedly connected to a closing plate (137), and the closing plate (137) is rotatably connected to the anti-backflow valve (135).

2. The vacuum booster made of aluminum material according to claim 1, characterized in that: The inner wall of the upper mounting tube (1) is sleeved with an isolating bushing (9), the inner wall of the isolating bushing (9) is provided with a plurality of limit platforms (10), and the plurality of limit platforms (10) are distributed in a circular array on the inner wall of the isolating bushing (9), and the isolating bushing (9) is slidably connected to the extrusion disk (132).

3. The vacuum booster made of aluminum material according to claim 2, characterized in that: The upper mounting tube (1) is provided with a lower mounting tube (2) on a side away from the upper connecting tube (3); the outer wall of the lower mounting tube (2) is fixedly connected to the lower connecting tube (4); the outer wall of the upper mounting tube (1) is sleeved with a limiting circular ring (5); the outer wall of the limiting circular ring (5) is fixedly connected to a fixing buckle (6); the inner wall of the lower connecting tube (4) is provided with a lower lifting mechanism (8); and the outer wall of the lower mounting tube (2) is provided with a vacuum exhaust mechanism (7).

4. The vacuum booster made of aluminum material according to claim 3, characterized in that: The inner wall of the lower connecting tube (4) is sleeved with a lower lifting column (81), and the lower lifting column (81) is fixedly connected with an extrusion disc (82) on a side away from the lower connecting tube (4). The outer wall of the extrusion disc (82) is provided with a first sliding groove (83), and the first sliding grooves (83) are distributed in a circular array on the outer wall of the extrusion disc (82). The extrusion disc (82) is slidably connected to the limiting platform (10).

5. The vacuum booster made of aluminum material according to claim 3, characterized in that: The inner wall of the lower mounting tube (2) is sleeved with a through tube (73), the outer wall of the through tube (73) is fixedly connected to the exhauster body (71), the outer wall of the exhauster body (71) is fixedly connected to an exhaust pipe (72), and the through tube (73) is fixedly connected to a connecting recessed plate (74) on a side away from the exhauster body (71).

6. The vacuum booster made of aluminum material according to claim 1, characterized in that: The outer wall of the extrusion disk (132) is provided with a telescopic rod (11), the outer wall of the telescopic rod (11) is sleeved with a return spring (12), and the telescopic rods (11) are distributed in a circular array on the outer wall of the extrusion disk (132).

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