Piston type air brake mechanism and compressor thereof

Abstract

The piston type air brake mechanism comprises an air brake body, a power cavity is formed in the upper surface of the air brake body, a cam is rotationally arranged on the inner wall of the power cavity through a connecting shaft rod, a driven disc is arranged at the other end of the connecting shaft rod, and a driving motor is arranged on one side of the power cavity. A driving disc is arranged on a rotating shaft of the driving motor, the driven disc is matched with the driving disc through a transmission belt, a compression cavity is formed above the power cavity, a connecting rod is rotationally arranged on the cam, a compression cylinder is rotationally arranged at the end of the connecting rod and arranged in the compression cavity, and an anti-collision assembly matched with the compression cylinder is arranged at the top of the compression cavity. An air inlet valve assembly and an air outlet valve assembly are arranged on the side wall of the compression cavity respectively, the air inlet valve assembly and the air outlet valve assembly are the same in structure, and an air filtering assembly is arranged on the air inlet valve assembly. On the premise that high-rotating-speed continuous work is guaranteed, the problem of gas internal leakage is further solved, and therefore the unit gas production rate is increased.

Description

Technical Field

[0001] The utility model belongs to the field of compressors, and in particular relates to a piston type air brake mechanism and a compressor thereof. Background Art

[0002] A compressor is a driven fluid machine that boosts low-pressure gas to high-pressure gas. Compressors are divided into piston compressors, screw compressors, centrifugal compressors, linear compressors, etc. The actual responsibility of the compressor is to increase the pressure, raising the suction pressure state to the exhaust pressure state, so no matter what type of compressor it is, the main effect achieved is the same.

[0003] Among them, the public document CN217926207U discloses a piston compressor, which mainly solves the problem that the existing compressor piston encounters large resistance when moving up and down, resulting in a low exhaust rate. However, it is found during long-term use that under high-intensity continuous work, the brake mechanism leaks a lot of gas during the compression process, thereby reducing the unit gas production. In order to optimize this solution, practitioners have designed a piston air brake mechanism and its compressor. Utility Model Content

[0004] The utility model aims to provide a piston type air brake mechanism and a compressor thereof in order to solve the problem that the existing piston type air compressor has a large internal gas leakage during the compression process, thereby reducing the unit gas output.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions: a piston-type air brake mechanism, comprising an air brake body, a power chamber is arranged on the upper surface of the air brake body, a cam is rotatably arranged on the inner wall of the power chamber through a connecting rod, a driven disc is arranged at the other end of the connecting rod, a driving motor is arranged on the upper surface of the air brake body located on one side of the power chamber, a driving disc is arranged on the rotating shaft of the driving motor, the driven disc and the driving disc are matched through a transmission belt, wherein a compression chamber is arranged above the power chamber, a connecting rod is rotatably arranged on the cam, a compression cylinder is rotatably arranged on the end of the connecting rod, and the compression cylinder is placed in the compression chamber;

[0006] An anti-collision assembly cooperating with the compression cylinder is arranged on the top of the compression chamber, and an air inlet valve assembly and an air outlet valve assembly are respectively arranged on the side walls of the compression chamber. The air inlet valve assembly has the same structure as the air outlet valve assembly, and an air filter assembly is arranged on the air inlet valve assembly.

[0007] Furthermore, an oil filling hole communicating with the cavity is provided on the side wall of the power cavity.

[0008] Furthermore, the anti-collision component includes an anti-collision body fixed to the inner wall of the top of the compression chamber, an anti-collision spring is arranged in the cavity of the anti-collision body, a retractable rod matching the anti-collision spring is arranged at the end of the anti-collision body, and an anti-collision gasket is arranged at the end of the retractable rod.

[0009] Furthermore, the intake valve assembly includes a valve body, a limit ring is provided on the inner wall of the valve body cavity, a valve stem is movably provided in the limit ring, a return spring is provided between the limit ring and the valve stem, and a sealing sheet is provided at the end of the valve stem.

[0010] Furthermore, the air filter assembly includes an air filter body, an air filter element is arranged on the inner wall of the cavity of the air filter body, and a plurality of air inlet holes which are connected with the cavity of the air filter body are opened on the side wall of the air filter body.

[0011] A compressor comprises a compressor body and a piston-type air brake mechanism, wherein the piston-type air brake mechanism is arranged on the top of the compressor body, the side wall of the compressor body is connected to the air outlet valve assembly through a gas pipeline, a vent hole is arranged on the side wall of the compressor body, and a pressure gauge is arranged on one side of the vent hole.

[0012] Beneficial effects: The utility model has reasonable design, simple and stable structure, strong practicality, and has the following beneficial effects:

[0013] 1. The cam is controlled externally through the drive motor, and then under the linkage of various components, high-intensity continuous work can be achieved;

[0014] 2. The inner diameter of the compression chamber matches the compression cylinder, thus avoiding the risk of air leakage between the two under high-intensity continuous action;

[0015] 3. The air inlet valve assembly and the air outlet valve assembly are set in reverse during the setting process, which can achieve that the air outlet is closed when the air is inlet, and the air inlet is closed when the air is out, thereby further ensuring that gas leakage will not easily occur when compressing the air, and also increasing the unit gas production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the utility model;

[0017] Figure 2 This is a structural schematic diagram of the piston type air brake mechanism of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the piston type air brake mechanism of the utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the connecting rod and the compression cylinder of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the anti-collision component of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the intake valve assembly of the utility model;

[0022] Figure 7 It is a structural schematic diagram of the air filter assembly of the utility model.

[0023] In the figure: 1-air brake body, 2-power chamber, 3-cam, 4-driven disc, 5-drive motor, 6-drive disc, 7-drive belt, 8-compression chamber, 9-connecting rod, 10-compression cylinder, 11-anti-collision assembly, 12-intake valve assembly, 13-exhaust valve assembly, 14-air filter assembly, 15-oil filling hole, 16-compressor body, 17-air release hole, 18-pressure gauge;

[0024] 1101-anti-collision body, 1102-anti-collision spring, 1103-retraction rod, 1104-anti-collision gasket, 1201-air valve body, 1202-limiting ring, 1203-air valve stem, 1204-return spring, 1205-sealing sheet, 1401-air filter body, 1402-air filter element, 1403-air inlet. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Embodiment 1:

[0027] Combination Figures 1 to 4The piston air brake mechanism shown in the figure comprises an air brake body 1, a power chamber 2 is arranged on the upper surface of the air brake body 1, a cam 3 is arranged on the inner wall of the power chamber 2 through the rotation of a connecting rod, a bearing is arranged on the side wall of the power chamber 2 when the connecting rod is installed, and then the connecting rod is sleeved therein, so as to ensure its basic rotation function, a driven disc 4 is arranged on the other end of the connecting rod, a driving motor 5 is arranged on the upper surface of the air brake body 1 on one side of the power chamber 2, a driving disc 6 is arranged on the rotating shaft of the driving motor 5, and the driven disc 4 and the driving disc 6 are connected to each other. Through the cooperation of the transmission belt 7, a compression chamber 8 is arranged above the power chamber 2, a connecting rod 9 is rotatably arranged on the cam 3, a compression cylinder 10 is rotatably arranged at the end of the connecting rod 9, and the compression cylinder 10 is placed in the compression chamber 8. This part of the structure drives the driving disc 6 to rotate through the driving motor 5, and then the driven disc 4 is rotated under the action of the transmission belt 7, and the driven disc 4 drives the connecting rod to drive the cam 3 to rotate. During the rotation of the cam 3, the connecting rod 9 is driven to move up and down, so that the compression cylinder 10 reciprocates in the compression chamber 8 to realize continuous compressed gas work;

[0028] An anti-collision component 11 that cooperates with the compression cylinder 10 is arranged on the top of the compression chamber 8. The anti-collision component 11 prevents the compression cylinder 10 from colliding with the top of the compression chamber 8 when it operates to the top under special circumstances. An intake valve component 12 and an exhaust valve component 13 are respectively arranged on the side walls of the compression chamber 8. The intake valve component 12 and the exhaust valve component 13 are oppositely arranged when they are set. During the working process, one group is open and the other group is in a closed state, so as to ensure the airtight effect of the compression chamber 8 during operation and avoid internal gas leakage and loss. The intake valve component 12 and the exhaust valve component 13 have the same structure. An air filter component 14 is arranged on the intake valve component 12. The air filter component 14 prevents some dust in the air from entering the compression chamber 8.

[0029] In this embodiment, an oil filling hole 15 which is in communication with the power chamber 2 is provided on the side wall thereof. The oil filling hole 15 facilitates the addition of lubricating oil into the power chamber 2 from the outside, thereby ensuring efficient and continuous operation of the cam 3 .

[0030] In this embodiment, refer to Figure 5 The anti-collision component 11 shown includes an anti-collision body 1101 fixed to the top inner wall of the compression chamber 8, an anti-collision spring 1102 is arranged in the cavity of the anti-collision body 1101, a retractable rod 1103 matching the anti-collision spring 1102 is arranged at the end of the anti-collision body 1101, and an anti-collision gasket 1104 is arranged at the end of the retractable rod 1103. The anti-collision gasket 1104 is made of rubber material and can perform effective impact protection in the later stage. The anti-collision component 11 mainly operates passively under special circumstances such as the compression cylinder 10 facing cylinder decoupling. When the compression cylinder 10 contacts the anti-collision gasket 1104, it will drive the retractable rod 1103 to compress the anti-collision spring 1102, thereby preventing the compression cylinder 10 from directly impacting the top wall of the compression chamber 8 and causing damage between the two.

[0031] In this embodiment, refer to Figure 6 The air intake valve assembly 12 shown includes an air valve body 1201, a limit ring 1202 is provided on the inner wall of the cavity of the air valve body 1201, an air valve stem 1203 is movably provided in the limit ring 1202, a return spring 1204 is provided between the limit ring 1202 and the air valve stem 1203, and a sealing sheet 1205 is provided at the end of the air valve stem 1203. This part of the structure will work passively with the up and down movement of the compression cylinder 10. When the compression cylinder 10 moves downward, air will be drawn into the compression chamber 8. At this time, the sealing sheet 1205 will automatically open. When the air is drawn in, the air valve stem 1203 will be in the return spring 1204. Under the action, the sealing sheet 1205 is driven to reset and form a seal, and an embedding groove is provided at the sealing sheet 1205 located at the end of the valve body 1201, which can ensure the sealing effect after the sealing sheet 1205 is reset and avoid subsequent shaking during operation. Taking this structure as an example, since the intake valve assembly 12 and the outlet valve assembly 13 have the same structure, the working principle is the same, but the two are set oppositely during the setting process. Because when the compression cylinder 10 produces a displacement effect, only one group of the intake valve assembly 12 and the outlet valve assembly 13 will work, and the other group will be in a sealed state, thereby preventing internal leakage of gas during the compression process.

[0032] In this embodiment, refer to Figure 7 The air filter assembly 14 shown includes an air filter body 1401, an air filter element 1402 is arranged on the inner wall of the cavity of the air filter body 1401, and a plurality of air inlet holes 1403 which are connected with the cavity of the air filter body 1401 are opened on the side wall. The air enters the air filter body 1401 through the air inlet holes 1403 and then enters the air inlet valve assembly 12 after being acted upon by the air filter element 1402, thereby effectively filtering some dust in the air.

[0033] A compressor includes a compressor body 16 and a piston air brake mechanism, wherein the piston air brake mechanism is arranged on the top of the compressor body 16, and the side wall of the compressor body 16 is connected to the air outlet valve assembly 13 through a gas pipeline to ensure that the compressed air is effectively stored in the compressor body 16, and a vent hole 17 is arranged on the side wall of the compressor body 16, and the vent hole 17 has a valve to facilitate the subsequent release of the gas stored in the compressor body 16, and a pressure gauge 18 is arranged on one side of the vent hole 17, and the pressure gauge 18 is used to monitor the pressure value in the compressor body 16.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A piston type air brake mechanism, comprising an air brake body (1), characterized in that: The upper surface of the air brake body (1) is provided with a power chamber (2), the inner wall of the power chamber (2) is rotatably provided with a cam (3) via a connecting rod, a driven disc (4) is provided at the other end of the connecting rod, a drive motor (5) is provided on the upper surface of the air brake body (1) located on one side of the power chamber (2), a drive disc (6) is provided on the rotating shaft of the drive motor (5), the driven disc (4) and the drive disc (6) are matched via a transmission belt (7), wherein a compression chamber (8) is provided above the power chamber (2), a connecting rod (9) is rotatably provided on the cam (3), a compression cylinder (10) is rotatably provided at the end of the connecting rod (9), and the compression cylinder (10) is placed in the compression chamber (8); An anti-collision assembly (11) cooperating with the compression cylinder (10) is arranged at the top of the compression chamber (8), and an air intake valve assembly (12) and an air outlet valve assembly (13) are arranged on the side walls of the compression chamber (8), respectively. The air intake valve assembly (12) and the air outlet valve assembly (13) have the same structure, and an air filter assembly (14) is arranged on the air intake valve assembly (12).

2. A piston type air brake mechanism according to claim 1, characterized in that: An oil injection hole (15) communicating with the power cavity (2) is provided on the side wall of the power cavity (2).

3. A piston type air brake mechanism according to claim 2, characterized in that: The anti-collision component (11) comprises an anti-collision body (1101) fixed to the top inner wall of the compression chamber (8), an anti-collision spring (1102) is arranged in the cavity of the anti-collision body (1101), a retractable rod (1103) matching with the anti-collision spring (1102) is arranged at the end of the anti-collision body (1101), and an anti-collision gasket (1104) is arranged at the end of the retractable rod (1103).

4. A piston type air brake mechanism according to claim 3, characterized in that: The air intake valve assembly (12) comprises an air valve body (1201), a limit ring (1202) is provided on the inner wall of the cavity of the air valve body (1201), an air valve stem (1203) is movably provided in the limit ring (1202), a return spring (1204) is provided between the limit ring (1202) and the air valve stem (1203), and a sealing sheet (1205) is provided at the end of the air valve stem (1203).

5. A piston type air brake mechanism according to claim 4, characterized in that: The air filter assembly (14) comprises an air filter body (1401), an air filter element (1402) is arranged on the inner wall of the cavity of the air filter body (1401), and a plurality of air inlet holes (1403) which are in communication with the cavity of the air filter body (1401) are arranged on the side wall of the air filter body (1401).

6. A compressor, characterized in that: It comprises a compressor body (16) and a piston-type air brake mechanism as claimed in any one of claims 1 to 5, wherein the piston-type air brake mechanism is arranged on the top of the compressor body (16), the side wall of the compressor body (16) is connected to the air outlet valve assembly (13) through a gas pipeline, and a vent hole (17) is arranged on the side wall of the compressor body (16), and a pressure gauge (18) is arranged on one side of the vent hole (17).

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