Adjustable air inlet grille structure of air compressor

Abstract

The embodiment of the utility model provides an adjustable air inlet grille structure of an air compressor. The adjustable air inlet grille structure comprises a frame, blades and a driving assembly. The frame is installed on a shell of the compressor body so as to define a ventilation opening for air circulation in the shell, and the multiple blades are relatively parallel and rotatably installed at the ventilation opening; the driving assembly is in transmission connection with the blades and used for driving the multiple blades to rotate synchronously. The driving assembly comprises a rocker, a handle and a connecting rod; the rocker is rotatably installed on the inner side wall of the frame, a rotating shaft of the rocker penetrates out of the frame to be fixedly connected with the handle, the free end of the rocker is in transmission connection with the connecting rod, and each blade is in transmission connection with the connecting rod; the driving assembly is used for driving the multiple blades to rotate synchronously, and therefore the air inlet amount is adjusted by changing the air inlet area of the ventilation opening.

Description

TECHNICAL FIELD

[0001] The utility model relates to air compressor technical field, concretely relates to adjustable air compressor's air inlet grille structure. BACKGROUND

[0002] Air compressor is a kind of equipment by prime mover drives host compression gas, to realize driving work.In actual working process, because prime mover runs and air compression process will produce a large amount of heat, to avoid affecting normal operation, need to be discharged by cooling system heat. Cooling system often realizes the circulation of air by fan and the like device, and the greater the air intake, the better the cooling effect. But for cold temperature or temperature variation is larger area, often need to change air intake according to actual temperature, can obtain appropriate cooling capacity.

[0003] The existing air compressor is usually by changing the speed of prime mover to realize the regulation of air intake, and the control mode is complex, and for mobile air compressor, its prime mover is often engine, and frequent adjustment of its speed will affect the fuel economy of engine, and will also affect the actual driving load capacity, and it is not suitable to change speed frequently. Therefore, the traditional air compressor can only choose to maintain constant air intake to avoid frequent adjustment of engine speed, which will cause excessive cooling capacity under low temperature conditions, affect system efficiency, and even damage system components. SUMMARY

[0004] Therefore, the embodiment of the utility model provides an adjustable air inlet grille structure of air compressor, which realizes the adjustment of air intake by adjusting the opening angle of the blades of the air inlet grille.

[0005] The adjustable air inlet grille structure of air compressor provided by the utility model embodiment comprises:

[0006] A frame is mounted on the shell of the compressor body to define a ventilation opening for air circulation on the shell.

[0007] A plurality of blades are mounted in the ventilation opening in parallel, and both ends of the blades are rotatably connected to the frame.

[0008] A drive assembly is in transmission connection with the blades and is configured to drive the plurality of blades to rotate synchronously.

[0009] The drive assembly comprises a rocker, a handle and a connecting rod. The rocker is rotatably mounted on the inner side wall of the frame, the rotating shaft of the rocker penetrates the frame and is fixedly connected with the handle, and the free end of the rocker is in transmission connection with the connecting rod. Each blade is in transmission connection with the connecting rod.

[0010] Optionally, the free end of the rocker is hinged to the connecting rod by a pin.

[0011] Optionally, the mounting hole of the pin is a round hole or an oblong hole.

[0012] Optionally, the free end of the rocker is drivingly connected to the connecting rod by a transmission rod, both ends of the transmission rod being hinged to the rocker and the connecting rod respectively.

[0013] Optionally, the number of the connecting rods is two; the middle section of the blade at both ends is rotatably connected to the frame by a rotating shaft, and the two connecting rods are oppositely arranged on both sides of the rotating shaft and are drivingly connected to the blade, so that the two adjacent blades and the two connecting rods form a parallelogram structure; the rotating shaft of the rocker is arranged at the middle section of the rocker, and both ends of the rocker are drivingly connected to the two connecting rods.

[0014] Optionally, the connecting rod is provided with a positioning pin mounting hole and a positioning pin matched with the positioning pin mounting hole, and the frame is provided with a plurality of positioning holes for the positioning pin to be inserted.

[0015] Optionally, the rocker is provided with a positioning pin mounting hole and a positioning pin matched with the positioning pin mounting hole, and the frame is provided with a plurality of positioning holes for the positioning pin to be inserted.

[0016] Optionally, the blade adopts a single-piece structure, a reinforced structure with edges bent, or a box-shaped structure formed by tailor-welding.

[0017] The embodiment of the utility model has the following beneficial effects: a plurality of rotatable blades are arranged in the air vent of the compressor body, and the driving assembly is used for driving the plurality of blades to rotate synchronously, so that the air inlet amount is adjusted by changing the air inlet area of the air vent. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0019] Figure 1 It is the overall structure schematic view of the embodiment of the utility model;

[0020] Figure 2 It is the partial enlarged schematic view of Figure 1

[0021] Figure 3 ​It is one kind of connection structure diagram of the swing bar and the connecting rod (with positioning pin) in the embodiment of the utility model;

[0022] Figure 4 It is one kind of connection structure diagram of the swing bar (with positioning pin) and the connecting rod in the embodiment of the utility model;

[0023] Figure 5 It is another connection structure diagram of the swing bar and the connecting rod in the embodiment of the utility model;

[0024] The numbers in the drawing represent:

[0025] 1, frame; 2, blade; 21, rotating shaft; 3, handle; 4, rocker; 41, rotating shaft; 5, connecting rod; 6, pin shaft; 7, transmission rod; 8, positioning pin mounting hole; 9, positioning pin; 10, positioning hole. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer to Figure 1 The embodiment of the utility model provides an adjustable air inlet grille structure of air compressor, including frame 1, blade 2 and drive assembly. Frame 1 is installed on the shell of compressor body (not shown in the drawing), to define the ventilation opening for air circulation on the shell. A plurality of blades 2 are installed in the ventilation opening relatively parallel, and both ends of each blade 2 are rotatably connected to frame 1. Drive assembly is drivingly connected with blade 2, and is configured to be able to drive a plurality of blades 2 to rotate synchronously, so as to change the air inlet area of the ventilation opening by adjusting the opening angle of blade 2, thereby realizing the adjustment of air inlet amount.

[0028] As Figure 2 , Figure 3 The drive assembly in the embodiment of the utility model includes handle 3, rocker 4 and connecting rod 5. Among them, rocker 4 is rotatably installed on the inner side wall of frame 1, and the rotating shaft 41 of rocker 4 penetrates out of frame 1 and is fixedly connected with handle 3, and rotating handle 3 can drive rocker 4 to rotate. The free end of rocker 4 is drivingly connected with connecting rod 5, and each blade 2 is drivingly connected with connecting rod 5, so that the free end of rocker 4 can drive connecting rod 5 to move up and down when rocker 4 rotates, thereby driving a plurality of blades 2 to flip synchronously through connecting rod 5, realizing the adjustment of air inlet amount.

[0029] As an optional driving connection mode, as shown inFigure 3 , Figure 4 As shown, the free end of the rocker arm 4 can be hinged to the connecting rod 5 via a pin 6. The mounting hole of the pin 6 can be a circular hole or an oblong hole. The oblong hole can improve the problem of motion jamming caused by assembly errors.

[0030] As another optional transmission connection method, such as Figure 5 As shown, the free end of the rocker arm 4 can also be connected to the connecting rod 5 via a transmission rod 7. Both ends of the transmission rod 7 are hinged to the rocker arm 4 and the connecting rod 5 respectively. When the rocker arm 4 rotates, its free end can drive the connecting rod 5 to move up and down via the transmission rod 7. Different ratios of the rotation angles of the rocker arm 4 and the blade 2 can be achieved through different length designs of the rocker arm 4, transmission rod 7, and connecting rod 5. Preferably, in this embodiment of the invention, the distance from the rotation shaft 41 of the rocker arm 4 to its free end is greater than the distance from the rotation shaft 21 of the blade 2 to the connecting rod 5. Therefore, by rotating the handle 3 and the rocker arm 4 at small angles, a large angle of rotation of the blade 2 can be achieved, thereby enabling rapid adjustment of the blade 2's angle.

[0031] To ensure driving stability, this embodiment of the invention uses two connecting rods 5. The middle sections of both ends of the blade 2 are rotatably connected to the frame 1 via their pivots 21. The two connecting rods 5 are arranged parallel to each other on both sides of the pivot 21 and are both connected to the blade 2, allowing adjacent blades 2 to form a stable parallelogram structure with the two connecting rods 5. The pivot 41 of the rocker arm 4 is also located in its middle section. Both ends of the rocker arm 4 are connected to the two connecting rods 5, allowing the rocker arm 4 to rotate simultaneously, driving the two connecting rods 5 to move in opposite directions, thereby causing the blades 2 to rotate more smoothly.

[0032] Furthermore, such as Figure 3 As shown, a positioning pin mounting hole 8 and a positioning pin 9 matching the positioning pin mounting hole 8 can be provided on the connecting rod 5, and multiple positioning holes 10 for the positioning pin 9 to be inserted are correspondingly provided on the frame 1 (e.g. Figure 2 As shown), the connecting rod 5 is positioned by the positioning pin 9 and the positioning holes 10 at different positions, thereby locking the blade 2 at different opening angles. Similarly, as... Figure 4 As shown, the positioning pin mounting hole 8 and the positioning pin 9 can also be set on the rocker arm 4. The rocker arm 4 can be positioned by the positioning pin 9 and the positioning holes 10 in different positions, which can also achieve locking of the blade 2 at different opening angles.

[0033] In addition, blade 2 can adopt a single-piece structure, an edge-bent reinforced structure, or a box-shaped structure formed by welding, etc. It is necessary to ensure that blade 2 has a large rigidity to prevent blade 2 from deforming during rotation.

[0034] The principle and implementation mode of the present application are described by using specific examples in the present application, and the above examples are only used for helping to understand the technical scheme and core idea of the present application; it should be understood by those skilled in the art that the technical scheme recorded in the foregoing examples can be modified, or some technical features can be replaced equivalently; and the modification or replacement does not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of the embodiments of the present application.

Claims

1. An adjustable inlet air grille structure for an air compressor, comprising: The utility model relates to a compressor air outlet structure, comprising: a frame mounted on the outer shell of the compressor body to define an air passage on the outer shell; a plurality of blades mounted on the air passage in parallel, both ends of the blades being rotatably connected to the frame; a driving assembly in driving connection with the blades and configured to drive the plurality of blades to rotate synchronously; wherein the driving assembly comprises a rocker, a handle and a connecting rod; the rocker is rotatably mounted on the inner side wall of the frame, the rotation axis of the rocker penetrates through the frame and is fixedly connected with the handle, and the free end of the rocker is in driving connection with the connecting rod; each of the blades is in driving connection with the connecting rod.

2. An adjustable inlet air grille structure for an air compressor as claimed in claim 1, wherein: The free end of the rocker is hinged to the connecting rod through a pin shaft.

3. An adjustable inlet air grille structure for an air compressor as claimed in claim 2, wherein: The mounting hole of the pin shaft is a circular hole or an oblong hole.

4. An adjustable inlet air grille structure for an air compressor as claimed in claim 1, wherein: The free end of the rocker is in driving connection with the connecting rod through a transmission rod, both ends of the transmission rod being hinged to the rocker and the connecting rod respectively.

5. An adjustable inlet air grille structure for an air compressor as claimed in claim 1, wherein: The number of the connecting rods is two; the middle section of both ends of the blades is rotatably connected to the frame through a rotating shaft, the two connecting rods are arranged on the two sides of the rotating shaft in parallel and are in driving connection with the blades, so that the two adjacent blades can form a parallelogram structure with the two connecting rods; the rotation axis of the rocker is arranged at the middle section of the rocker, and both ends of the rocker are in driving connection with the two connecting rods respectively.

6. An adjustable inlet air grille structure for an air compressor as claimed in claim 1, wherein: The connecting rod is provided with a positioning pin mounting hole and a positioning pin matched with the positioning pin mounting hole, and the frame is provided with a plurality of positioning holes for the positioning pin to be inserted into.

7. An adjustable inlet air grille structure for an air compressor as claimed in claim 1, wherein: The rocker is provided with a positioning pin mounting hole and a positioning pin matched with the positioning pin mounting hole, and the frame is provided with a plurality of positioning holes for the positioning pin to be inserted into.

8. An adjustable inlet air grille structure for an air compressor as claimed in claim 1, wherein: The blades adopt a single-piece structure, a reinforced structure with edges bent or a box-shaped structure formed by tailor-welding.

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