Compressed air supply device

Abstract

The utility model discloses a compressed air supply device, which belongs to the technical field of air suspension, and comprises two fixed shells, the two fixed shells are symmetrically arranged, a double-shaft motor is fixedly connected between the two fixed shells, two output ends of the double-shaft motor respectively penetrate into the two fixed shells, a connecting shell is fixedly connected between the two fixed shells, and the two output ends of the double-shaft motor respectively penetrate into the connecting shell. The top ends of the two fixing shells are fixedly connected with first-stage compression cylinders, the top end of the connecting shell is fixedly connected with second-stage compression cylinders, the second-stage compression cylinders are located between the two first-stage compression cylinders, and the top ends of the two first-stage compression cylinders are fixedly connected with first-stage valve assemblies. The top end of the second-stage compression cylinder is fixedly connected with a second-stage valve assembly; according to the air compressor, air is compressed synchronously on the two sides, first-stage compression of the air is rapidly completed, the working efficiency is effectively improved, meanwhile, second-stage compression is conducted on the air through the second-stage piston in the middle, and the air compression efficiency is further improved.

Description

Technical Field

[0001] This utility model relates to the field of air suspension technology, and more specifically, to a compressed air supply device. Background Technology

[0002] Air suspension is an advanced automotive suspension technology that uses inflatable airbags as elastic elements to achieve precise adjustment of the vehicle's suspension system. It mainly utilizes a compressed air supply device to generate compressed air and adjusts the vehicle's ground clearance by adjusting the compressed air.

[0003] Currently, compressed air supply devices play a very important role in air suspension systems. Common compressed air supply devices use the reciprocating motion of a piston to compress air. However, most existing compressed air supply devices are usually single-piston devices, which can only perform single-stage compression of air and have low compression efficiency. Therefore, this utility model proposes a compressed air supply device. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a compressed air supply device, which aims to solve the problem that most compressed air supply devices in the prior art are usually single pistons, which can only perform single-stage compression of air and have low compression efficiency.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution:

[0008] A compressed air supply device includes two fixed housings symmetrically arranged. A dual-shaft motor is fixedly connected between the two fixed housings, with its two output ends penetrating into each of the two fixed housings. A connecting housing is fixedly connected between the two fixed housings, positioned above the dual-shaft motor. A primary compression cylinder is fixedly connected to the top of each of the two fixed housings. A secondary compression cylinder is fixedly connected to the top of the connecting housing, located between the two primary compression cylinders. A primary valve assembly is fixedly connected to the top of each of the two primary compression cylinders. A secondary valve assembly is fixedly connected to the top of each of the secondary compression cylinders, located between the two primary valve assemblies. Each of the two primary valve assemblies has an air inlet. A primary drying tank is fixedly connected between each of the secondary valve assemblies and the two primary valve assemblies. A drive gear is fixedly connected to each of the two output ends of the dual-shaft motor. The system comprises two driving gears located within two fixed housings, each housing containing a driven gear that meshes with one driving gear. A primary eccentric block is fixedly connected to the far end of each driven gear. A primary connecting rod is hinged to the far end of each primary eccentric block via a hinge shaft. A primary piston is slidably connected within each of the two primary compression cylinders, with its bottom end hinged to the two primary connecting rods via hinge shafts. A rotating rod is fixedly connected to the near end of each driven gear, extending through a connecting housing. A secondary eccentric block is fixedly connected to the near end of each rotating rod, with a secondary connecting rod hinged between the two secondary eccentric blocks via a hinge shaft. A secondary piston is slidably connected within the secondary compression cylinder, with its bottom end hinged to the secondary connecting rod via a hinge shaft. An air outlet is provided on the secondary valve assembly.

[0009] As a preferred embodiment of this utility model, each of the two air inlets is fixedly connected with a filter assembly, and the two filter assemblies correspond to the two primary valve assemblies respectively.

[0010] As a preferred embodiment of this utility model, a drying tank assembly is fixedly connected to the top of the connecting shell. The drying tank assembly is provided with a connecting port assembly and an air outlet assembly, and the connecting port assembly corresponds to the air outlet.

[0011] As a preferred embodiment of this utility model, both primary drying tanks and the drying tank group are equipped with material changing caps.

[0012] As a preferred embodiment of this utility model, each of the two fixed shells is fixedly connected to a mounting plate at its bottom end, and each of the two mounting plates is provided with mounting holes.

[0013] 3. Beneficial effects

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) In this scheme, the dual-shaft motor controls the rotation of two active gears through dual shafts, so that the two first-stage pistons synchronously perform the first-stage compression of air in the two first-stage compression cylinders. At the same time, the second-stage piston draws the first-stage compressed air in the second-stage compression cylinder for second-stage compression. The first-stage compressed air passes through two first-stage drying tanks and a second-stage valve assembly and enters the second-stage compression cylinder to complete the second-stage compression. The compressed air is delivered to the air suspension system through the air outlet. This device adopts dual-side synchronous air compression, so that the air can quickly complete the first-stage compression, effectively improving the working efficiency. At the same time, the second-stage piston in the middle performs second-stage compression of air, further improving the air compression efficiency. Attached Figure Description

[0016] Figure 1 This is the front view of the present invention;

[0017] Figure 2 This is a perspective view of the present utility model;

[0018] Figure 3 This is an exploded view of the present invention;

[0019] Figure 4 This is a cross-sectional view of the present invention;

[0020] Figure 5 This is a diagram of the internal structure of this utility model.

[0021] Explanation of the labels in the diagram:

[0022] 1. Fixed housing; 2. Dual-shaft motor; 3. Connecting housing; 4. Primary compression cylinder; 5. Secondary compression cylinder; 6. Primary valve assembly; 7. Secondary valve assembly; 8. Air inlet; 9. Primary drying tank; 10. Drive gear; 11. Driven gear; 12. Primary eccentric block; 13. Primary connecting rod; 14. Primary piston; 15. Rotating rod; 16. Secondary eccentric block; 17. Secondary connecting rod; 18. Secondary piston; 19. Air outlet; 20. Filter assembly; 21. Drying tank assembly; 22. Connecting port assembly; 23. Air supply nozzle assembly; 24. Material changing cap; 25. Mounting plate; 26. Mounting hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example:

[0027] Please see Figure 1-5A compressed air supply device includes two fixed housings 1 arranged symmetrically. A dual-shaft motor 2 is fixedly connected between the two fixed housings 1, and the two output ends of the dual-shaft motor 2 respectively penetrate into the two fixed housings 1. A connecting housing 3 is fixedly connected between the two fixed housings 1, and the connecting housing 3 is located above the dual-shaft motor 2. A primary compression cylinder 4 is fixedly connected to the top of each of the two fixed housings 1. A secondary compression cylinder 5 is fixedly connected to the top of the connecting housing 3, and the secondary compression cylinder 5 is located between the two primary compression cylinders 4. A primary valve assembly 6 is fixedly connected to the top of each of the two primary compression cylinders 4. A secondary valve assembly 7 is fixedly connected to the top of the secondary compression cylinder 5, and the secondary valve assembly 7 is located between the two primary valve assemblies 6. Each of the two primary valve assemblies 6 is provided with an air inlet 8. A primary drying tank 9 is fixedly connected between the secondary valve assembly 7 and each of the two primary valve assemblies 6. A drive gear 10 is fixedly connected to the two output ends of the dual-shaft motor 2, and the two drive gears 10 are... The components are located within two fixed housings 1, each containing a driven gear 11 rotatably connected to a driving gear 10. Each driven gear 11 meshes with a driving gear 10. A primary eccentric block 12 is fixedly connected to the far end of each driven gear 11. A primary connecting rod 13 is hinged to the far end of each primary eccentric block 12 via a hinge shaft. A primary piston 14 is slidably connected within each of the two primary compression cylinders 4, with the bottom ends of each primary piston 14 hinged to a driving gear 10 via a hinge shaft. The first-stage connecting rod 13 has two driven gears 11 with one end of each rod fixedly connected to a rotating rod 15, and both rotating rods 15 extend into the connecting housing 3. The two rotating rods 15 have one end of each rod fixedly connected to a second-stage eccentric block 16, and the two second-stage eccentric blocks 16 are hinged together by a hinge shaft. The second-stage piston 18 is slidably connected inside the second-stage compression cylinder 5, and the bottom end of the second-stage piston 18 is hinged to the second-stage connecting rod 17 by a hinge shaft. The second-stage valve assembly 7 is provided with an air outlet 19.

[0028] In this embodiment, a dual-axis motor 2 drives two drive gears 10 to rotate. The two drive gears 10 mesh to cause two driven gears 11 to rotate within the fixed housing 1, simultaneously driving two primary eccentric blocks 12 to rotate. The two primary eccentric blocks 12, through two primary connecting rods 13, cause two primary pistons 14 to reciprocate within two primary compression cylinders 4. During the reciprocating motion of the two primary pistons 14, air is drawn in through two air inlets 8 and two primary valve assemblies 6 for primary compression. The compressed air enters a primary drying tank 9 for drying. Simultaneously, the two driven gears 11 drive two rotating rods 15 to rotate. The two rotating rods 15 drive two secondary eccentric blocks 16 to rotate. The two secondary eccentric blocks 16, through a secondary connecting rod 17, cause a secondary piston 18 to reciprocate within a secondary compression cylinder 5, thereby drawing in the compressed air. The compressed air enters a secondary compression cylinder 5 through two primary drying tanks 9 and a secondary valve assembly 7 for secondary compression. The compressed air is discharged through an air outlet 19, thus providing compressed air to the air suspension system and ensuring stable operation of the air suspension system.

[0029] Specifically, each of the two air inlets 8 is fixedly connected to a filter assembly 20, and the two filter assemblies 20 correspond to the two primary valve assemblies 6 respectively.

[0030] In this embodiment, two filter components 20 are used to perform preliminary filtration of the incoming air, removing impurities and some moisture from the air to ensure the stable operation of the device.

[0031] Specifically, a drying tank assembly 21 is fixedly connected to the top of the connecting shell 3. The drying tank assembly 21 is provided with a connecting port assembly 22 and an air supply nozzle assembly 23, and the connecting port assembly 22 corresponds to the air outlet nozzle 19.

[0032] In this embodiment, the connection port group 22 on the drying tank group 21 is connected to the air outlet 19 through a pipe. The compressed air output by the air outlet 19 to the air suspension system first enters the drying tank group 21, the drying tank group 21 further dries the compressed air, and finally outputs it through the air supply nozzle group 23.

[0033] Specifically, both primary drying tanks 9 and drying tank group 21 are equipped with material changing caps 24.

[0034] In this embodiment, compressed air is dried using desiccant in both primary drying tanks 9 and drying tank group 21. Multiple material change caps 24 allow the two primary drying tanks 9 and drying tank group 21 to be opened to replace the desiccant inside.

[0035] Specifically, each of the two fixed shells 1 is fixedly connected to a mounting plate 25 at its bottom, and each of the two mounting plates 25 has a mounting hole 26.

[0036] In this embodiment, the mounting holes 26 on the two mounting plates 25 are used in conjunction with bolts to facilitate the installation of the entire device.

[0037] Working principle: When the air suspension system needs air supply, the dual-shaft motor 2 drives two drive gears 10 to rotate. The two drive gears 10 cause two driven gears 11 to rotate, and the two driven gears 11 respectively drive two first-stage eccentric blocks 12 to rotate. The two first-stage eccentric blocks 12 cause two first-stage pistons 14 to reciprocate within two first-stage compression cylinders 4 via two first-stage connecting rods 13. During the reciprocating motion of the two first-stage pistons 14, air is drawn in through two air inlets 8 and two first-stage valve assemblies 6 for first-stage compression. The compressed air then enters the first-stage dryer 9 for further processing. During the drying process, two driven gears 11 drive two rotating rods 15 to rotate, which in turn drive two secondary eccentric blocks 16 to rotate. The two secondary eccentric blocks 16, through the secondary connecting rod 17, cause the secondary piston 18 to reciprocate within the secondary compression cylinder 5 to extract the air compressed in the first stage. After being dried by two primary drying tanks 9, the compressed air enters the secondary compression cylinder 5 through the secondary valve assembly 7 for secondary compression. The compressed air is then discharged through the air outlet 19, thereby providing compressed air to the air suspension system and ensuring its stable operation.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A compressed air supply device, comprising two fixed housings (1), characterized in that: Two fixed shells (1) are symmetrically arranged, and a dual-axis motor (2) is fixedly connected between the two fixed shells (1). The two output ends of the dual-axis motor (2) respectively penetrate into the two fixed shells (1). A connecting shell (3) is fixedly connected between the two fixed shells (1), and the connecting shell (3) is located above the dual-axis motor (2). A primary compression cylinder (4) is fixedly connected to the top of each of the two fixed shells (1). A secondary compression cylinder (5) is fixedly connected to the top of the connecting shell (3), and the secondary compression cylinder (5) is located between the two primary compression cylinders (4). A primary valve assembly (6) is fixedly connected to the top of each primary compression cylinder (4). A secondary valve assembly (7) is fixedly connected to the top of each secondary compression cylinder (5), and the secondary valve assembly (7) is located between the two primary valve assemblies (6). Each of the two primary valve assemblies (6) is provided with an air inlet (8). A primary drying tank (9) is fixedly connected between the secondary valve assembly (7) and the two primary valve assemblies (6). Both output ends of the dual-shaft motor (2) are fixedly connected with drive gears (10), and the two drive gears (10) are located at two fixed... Inside the housing (1), each of the two fixed housings (1) is rotatably connected to a driven gear (11), and the two driven gears (11) mesh with the two driving gears (10) respectively. The ends of the two driven gears (11) that are far apart are fixedly connected to a first-stage eccentric block (12). The ends of the two first-stage eccentric blocks (12) that are far apart are respectively hinged to a first-stage connecting rod (13) via a hinge shaft. Each of the two first-stage compression cylinders (4) is slidably connected to a first-stage piston (14), and the bottom ends of the two first-stage pistons (14) are respectively hinged to the two first-stage connecting rods (13) via hinge shafts. Two driven gears (11) are fixedly connected to a rotating rod (15) at their close ends, and both rotating rods (15) penetrate into the connecting shell (3). Two secondary eccentric blocks (16) are fixedly connected to the close ends of the two rotating rods (15). Two secondary eccentric blocks (16) are movably hinged to each other via a hinge shaft. A secondary piston (18) is slidably connected inside the secondary compression cylinder (5), and the bottom end of the secondary piston (18) is movably hinged to the secondary connecting rod (17) via a hinge shaft. An air outlet (19) is provided on the secondary valve assembly (7).

2. The compressed air supply device according to claim 1, characterized in that: Each of the two air inlets (8) is fixedly connected with a filter assembly (20), and the two filter assemblies (20) correspond to the two primary valve assemblies (6) respectively.

3. The compressed air supply device according to claim 2, characterized in that: The top of the connecting shell (3) is fixedly connected to a drying tank assembly (21). The drying tank assembly (21) is provided with a connecting port assembly (22) and an air supply nozzle assembly (23), and the connecting port assembly (22) corresponds to the air outlet nozzle (19).

4. A compressed air supply device according to claim 3, characterized in that: Both primary drying tanks (9) and drying tank group (21) are equipped with material changing caps (24).

5. A compressed air supply device according to claim 4, characterized in that: The bottom ends of the two fixed shells (1) are fixedly connected to mounting plates (25), and mounting holes (26) are opened on the two mounting plates (25).

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