A two-stage piston integrated compressor piston connecting rod mechanism

Abstract

The utility model discloses a one two stage piston integrated compressor piston connecting rod mechanism, include: the conjoined piston, including the support plate and two pistons, and the opposite two ends of support plate are coaxially connected with piston respectively, and the piston is equipped with the leather bowl, and the middle part of support plate is equipped with two perforated holes, left connecting rod is pasted in one side of support plate, right connecting rod is pasted in the other side of support plate, and one end of right connecting rod is connected in one end of left connecting rod through the dowel, and the dowel is rotatably arranged in a perforated hole, and the other end of left connecting rod is formed with the boss, and the boss is movably arranged in another perforated hole and is connected in the other end of left connecting rod, and the boss is formed with the jack, and the drive shaft of the motor for transmission connection, and the eccentric shaft is eccentrically connected with the drive shaft, and the eccentric shaft is rotatably inserted in the jack. The utility model solves the problem that the traditional two stage compressor for the automobile air suspension cannot make linear motion with the same frequency, and the leather bowl on the piston is unevenly stressed, and the working life is low.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, specifically to a compressor piston connecting rod mechanism with an integrated first and second stage piston. Background Technology

[0002] Existing single-stage air compressors have a simple structure, low operating costs, and are relatively easy to maintain. They also offer high air compression efficiency, producing high-quality compressed air. However, single-stage air compressors rely on a single compressor head, which may not meet some high-pressure requirements. Furthermore, the single-stage compressor head has a relatively short lifespan and needs periodic replacement.

[0003] Two-stage compressors have two compressor heads, enabling them to provide a higher compression ratio and produce higher pressure air. Additionally, two-stage compressor heads have a longer service life than single-stage compressor heads.

[0004] Currently, traditional two-stage compressors used in automotive air suspension have the following technical problems: the first and second stage pistons cannot move linearly at the same frequency, the piston cups are subjected to uneven force, and their service life is relatively short. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, a compressor piston connecting rod mechanism with an integrated first and second stage piston is provided to solve the problems of traditional two-stage compressors used in automotive air suspensions, where the first and second stage pistons cannot move linearly at the same frequency, the piston cups are subjected to uneven force, and the service life is relatively short.

[0006] To achieve the above objectives, a compressor piston connecting rod mechanism with an integrated first and second stage piston is provided, comprising:

[0007] The integrated piston includes a support plate and two pistons. The pistons are coaxially connected to opposite ends of the support plate. The pistons are fitted with cups. Two through holes are provided in the middle of the support plate.

[0008] The left connecting rod is attached to one side of the support plate;

[0009] The right connecting rod is attached to the other side of the support plate. One end of the right connecting rod is connected to one end of the left connecting rod by a pin. The pin is rotatably inserted into a through hole. The other end of the left connecting rod has a protrusion. The protrusion is movably inserted into another through hole and connected to the other end of the left connecting rod. The protrusion has an insertion hole.

[0010] A drive shaft for transmitting power to a motor, wherein the drive shaft is eccentrically connected to an eccentric shaft, the eccentric shaft being rotatably inserted into the socket.

[0011] Furthermore, the width of the support plate gradually decreases from the middle of the support plate towards both ends of the support plate.

[0012] Furthermore, the eccentric shaft is rotatably inserted into the socket via a bearing.

[0013] Furthermore, a bushing is fitted onto the pin, and the bushing is inserted into the through hole.

[0014] The beneficial effects of this invention are as follows: the integrated first and second stage piston connecting rod mechanism of this invention uses a combined or integrated first and second stage piston configuration, allowing the first and second stage pistons to move linearly at the same frequency under the drive shaft. This results in uniform radial force on the piston cups and a longer service life. The integrated first and second stage piston connecting rod mechanism of this invention operates more smoothly and has a longer lifespan. Furthermore, the drive shaft and eccentric shaft of this integrated first and second stage piston connecting rod mechanism are separate from the integrated piston, resulting in lower manufacturing costs and easier maintenance. Attached Figure Description

[0015] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the piston connecting rod mechanism of a compressor with an integrated first and second stage piston according to an embodiment of the present invention.

[0017] Figure 2 for Figure 1 The sectional view at point AA.

[0018] Figure 3 This is a three-dimensional structural diagram of the piston connecting rod mechanism of the compressor with an integrated first and second stage piston according to an embodiment of the present invention.

[0019] Figure 4 This is an exploded structural diagram of the piston connecting rod mechanism of the compressor with an integrated first and second stage piston according to an embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram showing the usage state of the integrated first and second stage piston piston connecting rod mechanism of the compressor according to an embodiment of the present invention.

[0021] Figure 6 This is a cross-sectional view of the cylinder according to an embodiment of the present utility model.

[0022] Figures 7 to 10 This is a schematic diagram of the extreme position of the protrusion in another perforation according to an embodiment of the present invention.

[0023] Figure 11This is a schematic diagram showing the relative positional relationship between the right connecting rod and the support plate after deflection in an embodiment of this utility model.

[0024] Figure label:

[0025] Support plate 11, piston 12, leather cup 13, pressure ring 14, valve plate 15, screw 16;

[0026] Left connecting rod 2, protruding post 21, C-shaped retaining ring 22;

[0027] Right connecting rod 3, pin 31, bushing 32, wear-resistant bushing 33, wear-resistant plate 34;

[0028] Drive shaft 4, eccentric shaft 41, bearing 42, bearing 43;

[0029] Motor 5;

[0030] Cylinder 6. Detailed Implementation

[0031] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] Reference Figures 1 to 6 As shown, this utility model provides a compressor piston connecting rod mechanism with an integrated first and second stage piston, including an integrated piston, a left connecting rod 2, a right connecting rod 3, and a drive shaft 4.

[0034] Specifically, the integrated piston includes a support plate 11 and two pistons 12.

[0035] The support plate 11 has two opposite ends in its length direction and two opposite left and right sides in its thickness direction.

[0036] Pistons 12 are coaxially connected to both ends of the support plate 11. Pistons 12 are fitted with cups 13. Two through holes are provided in the middle of the support plate 11.

[0037] In this embodiment, the size of the piston 12 at one end of the support plate 11 is smaller than the size of the piston 12 at the other end of the support plate 11.

[0038] In this embodiment, the cup is mounted on the piston via a pressure ring 14, a valve plate 15, and a screw 16.

[0039] The left connecting rod 2 is attached to the left side of the support plate 11. The right connecting rod 3 is attached to the right side of the support plate 11. The left connecting rod 2 and the right connecting rod 3 are respectively arranged along the length direction of the support plate 11.

[0040] In this embodiment, one end of the right connecting rod 3 is connected to one end of the left connecting rod 2 via a pin 31. The pin 31 is rotatably inserted into a through hole. The other end of the left connecting rod 2 has a protrusion 21. The protrusion 21 is movably inserted into another through hole and connected to the other end of the left connecting rod 2. The protrusion 21 has an insertion hole.

[0041] In a preferred embodiment, a bushing 32 is fitted onto the pin, and the bushing 32 is inserted into a through hole.

[0042] In this embodiment, a bushing 32 is fitted onto the middle of the pin 31. The bushing 32 is a copper bushing. The bushing is disposed in a through hole. A wear-resistant bushing 33 is fitted onto one end of the pin 31. A wear-resistant plate 34 is fitted onto the other end of the pin 31.

[0043] The drive shaft 4 is eccentrically positioned relative to the insertion hole on the protrusion 21. In this embodiment, the drive shaft 4 is eccentrically connected to an eccentric shaft 41. The eccentric shaft 41 is rotatably inserted into the insertion hole. The drive shaft 4 is used for transmission connection to the motor 5.

[0044] See Figure 5 and Figure 6 As shown, in use, the piston connecting rod mechanism of the integrated primary and secondary piston compressor of this utility model is assembled in the cylinder 6 of the reciprocating piston compressor, and the drive shaft 4 is coaxially connected to the output shaft of the motor 5. After the motor 5 is started, the drive shaft 4 rotates and drives the integrated piston to reciprocate up and down through the eccentric setting of the eccentric shaft 41 to perform secondary gas compression.

[0045] The piston connecting rod mechanism of the compressor with integrated first and second stage pistons of this utility model adopts the first and second stage pistons as a single unit or integral unit, so that the first and second stage pistons move linearly at the same frequency under the drive of the drive shaft, so that the piston cups are subjected to uniform radial force and have a longer service life.

[0046] The integrated piston and connecting rod mechanism of the compressor with one or two pistons in this invention operates more smoothly and has a longer service life.

[0047] On the other hand, the drive shaft and eccentric shaft of the integrated first and second stage piston compressor piston connecting rod mechanism of this utility model are set separately from the integrated piston, which has low manufacturing cost and is convenient to maintain.

[0048] In a preferred embodiment, the width of the support plate 11 gradually decreases from the middle of the support plate 11 towards both ends. The support plate 11 as a whole has a structure that is wider in the middle and narrower at both ends.

[0049] In this embodiment, the eccentric shaft 41 is rotatably inserted into the insertion hole via the bearing 42. The drive shaft 4 is rotatably mounted inside the cylinder 6 via the bearing 43.

[0050] See Figure 7 The diagram shows the position of the protrusion in another hole when the eccentric shaft is at its lower limit position on the drive shaft; see reference. Figure 8 The diagram shows the position of the protrusion in another through hole when the eccentric shaft is at its right extreme position relative to the drive shaft; see reference. Figure 9 The diagram shows the position of the protrusion in the other hole when the eccentric shaft is at its left extreme position relative to the drive shaft; see reference. Figure 10 The figure shows the position of the protrusion in another hole when the eccentric shaft is at the upper limit position of the drive shaft. Figure 11 This describes the relative position of the right connecting rod to the support plate after deflection when the eccentric shaft is at its right limit position on the drive shaft. The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the specific combination of the above-described technical features, but should also cover other technical solutions formed by any combination of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A compressor piston connecting rod mechanism with an integrated first and second stage piston, characterized in that, include: The integrated piston includes a support plate and two pistons. The pistons are coaxially connected to opposite ends of the support plate. The pistons are fitted with cups. Two through holes are provided in the middle of the support plate. The left connecting rod is attached to one side of the support plate; The right connecting rod is attached to the other side of the support plate. One end of the right connecting rod is connected to one end of the left connecting rod by a pin. The pin is rotatably inserted into a through hole. The other end of the left connecting rod has a protrusion. The protrusion is movably inserted into another through hole and connected to the other end of the left connecting rod. The protrusion has an insertion hole. A drive shaft for transmitting power to a motor, wherein the drive shaft is eccentrically connected to an eccentric shaft, the eccentric shaft being rotatably inserted into the socket.

2. The compressor piston connecting rod mechanism with integrated primary and secondary pistons according to claim 1, characterized in that, The width of the support plate gradually decreases from the middle of the support plate towards both ends of the support plate.

3. The compressor piston connecting rod mechanism with integrated primary and secondary pistons according to claim 1, characterized in that, The eccentric shaft is rotatably inserted into the socket via a bearing.

4. The compressor piston connecting rod mechanism with integrated primary and secondary pistons according to claim 1, characterized in that, A bushing is fitted onto the pin, and the bushing is inserted into the through hole.

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