Air inlet device of engine

Abstract

The utility model belongs to the technical field of engine application, and particularly relates to an air inlet device of an engine. An air inlet device of an engine comprises an air inlet mechanism, the air inlet mechanism is connected with an air inlet hole of the engine, and the air inlet mechanism is connected with a first air inlet switch mechanism; the first fan blade can be pulled and driven to rotate through the pull rope, the first fan blade can drive the first connecting pin and the first rotating shaft to rotate, the opening degree of the throttle valve plate is controlled, the throttle valve plate is completely closed, and the throttle valve plate can be closed when an engine is stopped emergently.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the engine application technical field, specifically, the utility model relates to an air intake device of engine. BACKGROUND

[0002] At present, various engine products are applied to some special scenes, such as coal mining, oil exploitation, etc., and production safety is particularly important, therefore, safety measures need to be guaranteed, in case of some emergencies, the engine needs to be stopped in emergency, and a measure of stopping by closing the air intake pipe air brake is added, so that the production safety is greatly guaranteed.

[0003] Chinese patent (publication number: 103104384A) discloses a double-layer structure including an outer pipe and an inner pipe with a spacing through the engine air intake pipe, sound insulation function can be effectively realized through the spacing between the outer pipe and the inner pipe, heat in the engine cabin can be reduced or isolated from the air flow in the air intake pipe, but the air intake pipe can be closed when the engine is stopped in emergency. UTILITY MODEL CONTENT

[0004] The utility model is carried out in order to solve the above problem, and aims at providing an air intake device of engine, which can close the air intake pipe when the engine is stopped in emergency.

[0005] In order to realize the above purpose, the technical scheme adopted by the utility model is as follows: an air intake device of engine, which comprises an air intake mechanism, the air intake mechanism is connected with an engine air intake hole, and the air intake mechanism is connected with a first air intake switch mechanism.

[0006] The air intake mechanism comprises a first air intake pipe, the first air intake pipe is communicated with the engine air intake hole, a throttle valve plate is arranged in the first air intake pipe, and the throttle valve plate is connected with the first air intake switch mechanism.

[0007] The first air intake switch mechanism comprises a first rotating shaft, the first rotating shaft is movably arranged at both ends of the first air intake pipe, the first rotating shaft is connected with the throttle valve plate, one end of the first rotating shaft is connected with a first connecting pin, a first fan blade is sleeved on the first connecting pin, and the first fan blade is connected with a pull rope.

[0008] The first fan blade is connected with a limiting mechanism, the limiting mechanism comprises a first blocking pin, the first fan blade is provided with a first through groove, one end of the first blocking pin is connected with the first air intake pipe, and the other end of the first blocking pin is arranged in the first through groove.

[0009] The first sector is provided with a second air inlet switch mechanism, the second air inlet switch mechanism comprises a first pull rod and a controller, the first pull rod is connected with the first sector, one end of the first pull rod is connected with a solenoid valve, and the solenoid valve is connected with the controller.

[0010] The first base and the connecting plate are fixedly connected on the engine shell, the first connecting pin is connected with a locking bolt, the locking bolt abuts against the first sector, and the solenoid valve is connected with a solenoid valve base.

[0011] The first bottom plate comprises first bottom plates, and the first bottom plates are connected with fixed plates at two ends.

[0012] The first bottom plate and the fixed plate are in an integral forming structure.

[0013] The first bottom plate and the fixed plate are provided with a reinforcing plate.

[0014] The technical effect of the utility model is that the first sector can be pulled by the pull rope, the first sector is driven to rotate, the first sector can drive the first connecting pin and the first rotating shaft to rotate, the opening of the throttle valve piece is controlled, the throttle valve piece is completely closed, the throttle valve piece can be closed when the engine is in emergency shutdown, the pull rod can be controlled to move through the solenoid valve, the first sector can be pulled by the pull rod, the first sector can drive the first connecting pin and the first rotating shaft to rotate, and the opening of the throttle valve piece can be controlled. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present specification comprises the following drawings, and the shown contents are respectively:

[0016] Fig. 1 It is an air inlet mechanism, a first air inlet switch mechanism and a limiting mechanism structure schematic view of the utility model of an engine air inlet device.

[0017] Fig. 2 It is an overall structure schematic view of the utility model of an engine air inlet device.

[0018] In the drawing, marks are: 1, air inlet mechanism; 101, first air pipe; 102, throttle valve piece; 2, first air inlet switch mechanism; 201, first rotating shaft; 202, first connecting pin; 203, first sector; 204, pull rope; 3, limiting mechanism; 301, first stop pin; 302, first through slot; 4, second air inlet switch mechanism; 401, first pull rod; 402, controller; 403, solenoid valve; 5, first base; 501, first bottom plate; 502, fixed plate; 6, connecting plate; 7, locking bolt; 8, solenoid valve base; 9, reinforcing plate. DETAILED DESCRIPTION

[0019] The specific embodiments of the present application will be further described in detail below with reference to the drawings, and the purpose is to help the skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solutions of the present application, and to help its implementation.

[0020] As Figs. 1-2 shown, an air intake device of an engine includes an air intake mechanism 1 connected to the engine air hole, and a first air intake switch mechanism 2 connected to the air intake mechanism 1. The air intake mechanism 1 is connected to the engine air hole, and air can enter the engine through the air intake mechanism 1. The first air intake switch mechanism 2 can be used to open and close the air intake mechanism 1 to control the air entering the engine. When the engine is in emergency shutdown, the air intake pipe can be closed to prevent air from entering the engine.

[0021] The air intake mechanism 1 includes a first air pipe 101 connected to the engine air hole, and a throttle valve 102 provided in the first air pipe 101. The throttle valve 102 is connected to the first air intake switch mechanism 2, and the first air pipe 101 serves as an air intake passage to guide external air to the engine air hole. It is the main passage of the entire air intake process, which ensures that air can smoothly enter the engine interior to participate in the combustion process, creating a stable delivery pipeline for air entering the engine and ensuring the continuity of air intake. The throttle valve 102 is connected to the first air pipe 101 and is used to control the amount of air entering the engine. By adjusting the opening size of the throttle valve 102, the air intake flow rate can be controlled, and by adjusting the opening degree of the throttle valve 102, the air intake amount can be accurately controlled, so that the engine can obtain a suitable air-fuel ratio under different working conditions, and the throttle valve 102 can also be closed to prevent air from entering the engine.

[0022] The first air intake switch mechanism 2 comprises a first rotating shaft 201 movably arranged at both ends of the first air pipe 101, the first rotating shaft 201 being connected with the throttle valve 102, one end of the first rotating shaft 201 being connected with a first connecting pin 202, the first connecting pin 202 being sleeved with a first fan blade 203, and the first fan blade 203 being connected with a pull rope 204. The first rotating shaft 201 is movably arranged at both ends of the first air pipe 101, and plays a role of supporting and rotating. It is connected with the throttle valve 102, so that the throttle valve 102 can rotate around the first rotating shaft 201, thereby realizing control of the air intake amount. The first rotating shaft 201 provides a stable fulcrum for rotation of the throttle valve 102, and guarantees smoothness of the throttle valve 102 in the adjustment process; the first connecting pin 202 is sleeved with the first fan blade 203, the first fan blade 203 is fixed on the first connecting pin 202, the first fan blade 203 can drive the first connecting pin 202 and the first rotating shaft 201 to rotate by rotating, the opening of the throttle valve 102 is controlled, and the pull rope 204 can pull the first fan blade 203 to drive the first fan blade 203 to rotate, so that the throttle valve 102 is completely closed.

[0023] The first fan blade 203 is connected with a limiting mechanism 3, the limiting mechanism 3 comprises a first stop pin 301, the first fan blade 203 is provided with a first through slot 302, one end of the first stop pin 301 is connected with the first air pipe 101, and the other end of the first stop pin 301 is arranged in the first through slot 302. The first stop pin 301 is mainly used for limiting the movement range of the first fan blade 203, and the throttle valve 102 can be completely closed when the first fan blade 203 moves to a limiting position.

[0024] The first fan blade 203 is provided with a second air intake switch mechanism 4, the second air intake switch mechanism 4 comprises a first pull rod 401 and a controller 402, the controller 402 is a PLC controller, the first pull rod 401 is connected with the first fan blade 203, one end of the first pull rod 401 is connected with a solenoid valve 403, and the solenoid valve 403 is connected with the controller 402. The solenoid valve 403 is always open without electricity, under the condition of power supply, the controller 402 is a PLC controller, controls the solenoid valve 5, controls the movement of the pull rod 3 through the solenoid valve 5, the pull rod 3 pulls the first fan blade 203, and the first rotating shaft 201 drives the throttle valve 102 to open or close.

[0025] The first connecting pin 202 is connected with a locking bolt 7, the locking bolt 7 abuts against the first fan blade 203, and the electromagnetic valve 403 is connected with an electromagnetic valve base 8. The first base 5 and the connecting plate 6 are used for fixing the first air pipe 101 on the engine shell, the locking bolt 7 is used for fixing the first fan blade 203 on the first connecting pin 202, and the electromagnetic valve base 8 is used for fixing the electromagnetic valve 403 and provides a stable mounting position for the electromagnetic valve 403.

[0026] The first through groove 302 is in an arc-shaped structure, the first base 5 comprises a first bottom plate 501, the first bottom plate 501 is connected with a fixing plate 502 at both ends, and the fixing plate 502 is connected with the first air pipe 101. The arc-shaped structure of the first through groove 302 can cooperate with the first blocking pin 301 to define the movement track of the first fan blade 203, and the fixing plate 502 connected at both ends of the first bottom plate 501 can more stably fix the first air pipe 101.

[0027] The first bottom plate 501 and the fixing plate 502 are in an integrally formed structure. The integrally formed structure can strengthen the connection strength between the first bottom plate 501 and the fixing plate 502.

[0028] A reinforcing plate 9 is arranged between the first bottom plate 501 and the fixing plate 502. The reinforcing plate 9 can strengthen the connection strength between the first bottom plate 501 and the fixing plate 502.

[0029] Effects of the embodiment

[0030] The first fan blade 203 can be pulled to drive the first fan blade 203 to rotate through the pull rope 204, the first fan blade 203 can drive the first connecting pin 202 and the first rotating shaft 201 to rotate, the opening degree of the air door valve piece 102 is controlled, the air door valve piece 102 is completely closed, the air door valve piece 102 can be closed when the engine is in emergency shutdown, and the pull rod 3 can also be controlled to move through the electromagnetic valve 5, the first fan blade 203 is pulled by the pull rod 3, the first fan blade 203 can drive the first connecting pin 202 and the first rotating shaft 201 to rotate, and the opening degree of the air door valve piece 102 can be controlled.

[0031] The utility model is described exemplarily above in combination with the drawings. Apparently, the specific implementation of the utility model is not limited by the above-mentioned mode. As long as various non-essential improvements are made by adopting the method concept and technical scheme of the utility model, or the above-mentioned concept and technical scheme of the utility model are directly applied to other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. An intake device for an engine, characterized by, The utility model provides an air intake mechanism (1) is connected with engine air hole, first air intake switch mechanism (2) is connected to the air intake mechanism (1), the air intake mechanism (1) includes first air pipe (101), first air pipe (101) is communicated with engine air hole, the first air pipe (101) is provided with air throttle valve piece (102) in, air throttle valve piece (102) is connected with first air intake switch mechanism (2).

2. An air intake device for an engine according to claim 1, characterized in that: The first air intake switch mechanism (2) includes first rotary shaft (201), first rotary shaft (201) both ends are movably arranged on first air pipe (101), first rotary shaft (201) is connected with air throttle valve piece (102), first rotary shaft (201) one end is connected with first connecting pin (202), first connecting pin (202) is sleeved with first fan blade (203), first fan blade (203) is connected with pull rope (204).

3. An air induction device for an engine as claimed in claim 2, wherein: The first fan blade (203) is connected with a limiting mechanism (3), the limiting mechanism (3) includes a first stop pin (301), the first fan blade (203) is provided with a first through slot (302), one end of the first stop pin (301) is connected with the first air pipe (101), and the other end of the first stop pin (301) is arranged in the first through slot (302).

4. An air induction device for an engine as claimed in claim 3, wherein: The first fan blade (203) is provided with a second air intake switch mechanism (4), the second air intake switch mechanism (4) includes a first pull rod (401) and a controller (402), the first pull rod (401) is connected with the first fan blade (203), one end of the first pull rod (401) is connected with a solenoid valve (403), and the solenoid valve (403) is connected with the controller (402).

5. An air induction device for an engine as claimed in claim 4, wherein: The first air pipe (101) is connected with a first base (5) and a connecting plate (6), the first base (5) and the connecting plate (6) are fixedly connected on an engine shell, the first connecting pin (202) is connected with a locking bolt (7), the locking bolt (7) abuts against the first fan blade (203), and the solenoid valve (403) is connected with a solenoid valve base (8).

6. An air induction device for an engine as claimed in claim 5, wherein: The first through slot (302) is an arc structure, the first base (5) includes a first bottom plate (501), both ends of the first bottom plate (501) are connected with a fixed plate (502), and the fixed plate (502) is connected with the first air pipe (101).

7. An air induction device for an engine as claimed in claim 6, wherein: The first bottom plate (501) and the fixed plate (502) are an integral molding structure.

8. An air intake device for an engine according to claim 6, characterized in that: A reinforcing plate (9) is arranged between the first bottom plate (501) and the fixed plate (502).

Images