Silencing cavity-cylinder cover structure with self-locking function

Abstract

The noise reduction cavity-cylinder cover structure with the self-locking function comprises a plastic noise reduction cavity and a cylinder cover, and the bottom face and the side face of the head of an air outlet of the plastic noise reduction cavity are provided with a first bottom face arc-shaped sheet and a second side face arc-shaped sheet respectively; an air cylinder cover mounting groove is formed in the air cylinder cover, an air cylinder cover side surface mounting notch is formed in the air cylinder cover mounting groove, the side surface second arc-shaped sheet has an outward expanding radian in a free state, and the opening width of the side surface second arc-shaped sheet is larger than the width of the air cylinder cover side surface mounting notch. The plastic silencing cavity is in self-locking clamping connection with a cylinder cover mounting groove of the cylinder cover through a first arc-shaped sheet on the bottom surface and a second arc-shaped sheet on the side surface; according to the technical scheme, the plastic silencing cavity achieves the self-locking function through elastic deformation, a traditional metal air cylinder cover clamp is omitted, the assembling procedure is simplified, and the production cost is reduced; and therefore, the effects of improving the sealing reliability, reducing the gasket damage risk, reducing the production control difficulty and enhancing the mounting stability are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a compressor device technical field, specifically, relate to a take self locking function's sound attenuation chamber - cylinder cover structure. BACKGROUND

[0002] The traditional suction sound attenuation chamber in the compressor is mainly used for reducing the noise generated in the suction process of the compressor, and the structure usually comprises an upper chamber and a lower chamber, the upper chamber is connected with the cylinder cover, and the lower chamber is connected with the suction pipeline. The head of the upper chamber gas outlet of the traditional suction sound attenuation chamber is usually designed in clearance fit between the cylinder cover mounting groove, in order to ensure firm assembly and sealing effect, a metal sheet-shaped cylinder cover card is usually added between the two. The cylinder cover card utilizes its high elastic property, so that the sealing rib of the upper sound attenuation chamber gas outlet can be embedded into the cylinder cover gasket, thereby realizing the close fit between the sound attenuation chamber and the gasket, and reducing the gas leakage.

[0003] However, this traditional structure has some obvious shortcomings:

[0004] Firstly, the existence of the cylinder cover card increases the additional assembly process, improves the production cost and assembly complexity; secondly, the metal cylinder cover card has strong elasticity, even a small compression variable (such as 0.5mm) can bring a large elastic pressure change, and the excessive elastic pressure can cause the sealing rib to be embedded too deep, which increases the risk of gasket damage, which puts higher requirements on the interference size control of related parts; in addition, the cylinder cover card has elasticity in the front and rear directions, but has no elasticity in the left and right directions, and the fixation in the left and right directions mainly relies on the friction force between the parts after interference compression to prevent relative shaking, when the sound attenuation chamber is impacted by airflow, the embedded sealing rib will extrude the cylinder cover gasket in the left and right directions, and after long time operation, the risk of gasket damage is significantly increased.

[0005] Although the design of the traditional suction sound attenuation chamber plays a certain role in reducing noise, its complex structure, high assembly difficulty and many vulnerable parts limit its further application and improvement. INVENTION CONTENTS

[0006] In view of the above technical problems in the related art, the utility model provides a sound attenuation chamber-cylinder cover structure with self-locking function, which can overcome the above shortcomings of the prior art.

[0007] To achieve the above technical purposes, the technical scheme of the utility model is as follows:

[0008] A sound attenuation chamber-cylinder cover structure with self-locking function;

[0009] The sound attenuation cavity-gas cylinder cover structure with self-locking function comprises a plastic sound attenuation cavity and a gas cylinder cover which are arranged in clamping connection, the bottom surface and the side surface of the head of the gas outlet of the plastic sound attenuation cavity are respectively provided with a first arc-shaped thin sheet on the bottom surface and a second arc-shaped thin sheet on the side surface, the gas cylinder cover is provided with a gas cylinder cover mounting groove, the gas cylinder cover mounting groove is provided with a gas cylinder cover side surface mounting slot, the second arc-shaped thin sheet on the side surface has an outward curvature in a free state, the opening width of the second arc-shaped thin sheet on the side surface is greater than the width of the gas cylinder cover side surface mounting slot, and the plastic sound attenuation cavity is arranged in self-locking clamping connection with the gas cylinder cover mounting groove of the gas cylinder cover through the first arc-shaped thin sheet on the bottom surface and the second arc-shaped thin sheet on the side surface.

[0010] Further, the second arc-shaped thin sheet on the side surface comprises a side surface second arc-shaped thin sheet side wall and a side surface second arc-shaped thin sheet top wall.

[0011] Further, the gas cylinder cover comprises a gas cylinder cover mounting groove bottom surface, the first arc-shaped thin sheet on the bottom surface is extruded from front to back by the gas cylinder cover mounting groove bottom surface and the valve plate during assembly, and is elastically deformed and clamped into the gas cylinder cover mounting groove.

[0012] Further, the second arc-shaped thin sheet on the side surface is extruded from left to right by the side wall of the gas cylinder cover side surface mounting slot during assembly, and is elastically deformed and clamped into the gas cylinder cover side surface mounting slot.

[0013] Further, the gas cylinder cover side surface mounting slot is provided with a gas cylinder cover slot cover plate, and the top wall of the second arc-shaped thin sheet on the side surface abuts against the gas cylinder cover slot cover plate.

[0014] Further, the first arc-shaped thin sheet on the bottom surface and the second arc-shaped thin sheet on the side surface are integrally injection molded by a plastic material.

[0015] Further, the outward curvature range of the second arc-shaped thin sheet on the side surface is five to fifteen degrees, so as to adapt to gas cylinder cover side surface mounting slots of different sizes.

[0016] Further, the contact surface of the head of the gas outlet of the plastic sound attenuation cavity and the gas cylinder cover mounting groove is provided with anti-skid lines for enhancing the fixing effect.

[0017] The utility model discloses the beneficial effects: through the optimization improvement design of the utility model product, so that the plastic sound attenuation cavity realizes self-locking function through the elastic deformation of the first arc-shaped thin sheet on the bottom surface and the second arc-shaped thin sheet on the side surface, cancels the traditional metal gas cylinder cover card, simplifies the assembly process, and reduces the production cost, and further reaches the effect of improving the sealing reliability, reducing the gasket breakage risk, reducing the production control difficulty, enhancing the installation stability, and reducing the gas leakage and the noise. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0019] Figure 1 is a sectional view of the traditional compressor muffling cavity-cylinder cover structure according to the embodiments of the present application;

[0020] Figure 2 is a partial perspective view of the muffling cavity of the muffling cavity-cylinder cover structure with self-locking function according to the embodiments of the present application;

[0021] Figure 3 is a partial perspective view of the cylinder cover of the muffling cavity-cylinder cover structure with self-locking function according to the embodiments of the present application;

[0022] Figure 4 is a front sectional view of the bottom surface first arc-shaped sheet clamping of the muffling cavity-cylinder cover structure with self-locking function according to the embodiments of the present application;

[0023] Figure 5 is a rear sectional view of the bottom surface first arc-shaped sheet clamping of the muffling cavity-cylinder cover structure with self-locking function according to the embodiments of the present application;

[0024] Figure 6 is a front sectional view of the side surface second arc-shaped sheet clamping of the muffling cavity-cylinder cover structure with self-locking function according to the embodiments of the present application;

[0025] Figure 7 is a rear sectional view of the side surface second arc-shaped sheet clamping of the muffling cavity-cylinder cover structure with self-locking function according to the embodiments of the present application;

[0026] In the drawings: 1, traditional suction muffling cavity; 2, traditional suction muffling cavity sealing protruding rib; 3, traditional cylinder cover; 4, traditional cylinder cover clamp; 5, traditional cylinder cover gasket; 6, plastic muffling cavity; 7, bottom surface first arc-shaped sheet; 8, side surface second arc-shaped sheet; 9, side surface second arc-shaped sheet side wall; 10, side surface second arc-shaped sheet top wall; 11, cylinder cover; 12, cylinder cover mounting groove; 13, cylinder cover mounting groove bottom surface; 14, cylinder cover side surface mounting groove opening; 15, cylinder cover groove opening cover plate; 16, valve plate. DETAILED DESCRIPTION

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art are within the protection scope of the present utility model.

[0028] It should be understood that in the description of the embodiments of this utility model, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of 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. Therefore, they should not be construed as limitations on the embodiments 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 or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0029] like Figures 2-7 As shown in the embodiment of this utility model, a muffler-cylinder head structure with self-locking function includes a plastic muffler 6 and a cylinder head 11 that are interlocked. The bottom surface and side surface of the outlet head of the plastic muffler 6 are respectively provided with a first arc-shaped thin plate 7 on the bottom surface and a second arc-shaped thin plate 8 on the side surface. The cylinder head 11 is provided with a cylinder head mounting groove 12, and the cylinder head mounting groove 12 is provided with a cylinder head side mounting groove 14. The second arc-shaped thin plate 8 has an outward arc in the free state, and the opening width of the second arc-shaped thin plate 8 is greater than the width of the cylinder head side mounting groove 14. The plastic muffler 6 is self-lockingly interlocked with the cylinder head mounting groove 12 of the cylinder head 11 through the first arc-shaped thin plate 7 on the bottom surface and the second arc-shaped thin plate 8 on the side surface.

[0030] According to an embodiment of the present invention, a muffler-cylinder head structure with self-locking function is provided. In a specific embodiment, the second arc-shaped sheet 8 on the side includes a side wall 9 and a top wall 10.

[0031] The utility model discloses a silencing cavity - cylinder cover structure with self locking function, in a specific embodiment, the cylinder cover 11 includes cylinder cover installation groove bottom surface 13, the bottom surface first arc sheet 7 is extruded by cylinder cover installation groove bottom surface 13 and valve plate 16 before and after in the assembling process, and the elastic deformation is formed and is clamped into cylinder cover installation groove 12.

[0032] The utility model discloses a silencing cavity - cylinder cover structure with self locking function, in a specific embodiment, the side surface second arc sheet 8 is extruded by cylinder cover side installation slot mouth 14 lateral wall in the assembling process, and the elastic deformation is formed and is clamped into cylinder cover side installation slot mouth 14.

[0033] The utility model discloses a silencing cavity - cylinder cover structure with self locking function, in a specific embodiment, cylinder cover slot mouth cover plate 15 is equipped on cylinder cover side installation slot mouth 14, and the side surface second arc sheet top wall 10 is abutted with cylinder cover slot mouth cover plate 15.

[0034] The utility model discloses a silencing cavity - cylinder cover structure with self locking function, in a specific embodiment, the bottom surface first arc sheet 7 and side surface second arc sheet 8 are integrally injection moulded by plastic material.

[0035] The utility model discloses a silencing cavity - cylinder cover structure with self locking function, in a specific embodiment, the side surface second arc sheet 8's outer tension arc range is five to fifteen degrees, to adapt to the cylinder cover side installation slot mouth 14 of different size.

[0036] The utility model discloses a silencing cavity - cylinder cover structure with self locking function, in a specific embodiment, the plastic silencing cavity 6 outlet head and cylinder cover installation groove 12's contact surface are equipped with the anti -skid line of reinforcing fixed effect.

[0037] In order to facilitate understanding the above technical scheme of the utility model, the above technical scheme of the utility model is explained in detail through specific use mode below.

[0038] In specific use, according to the utility model discloses a kind of self-locking function's sound attenuation cavity-cylinder cover structure, wherein, plastic sound attenuation cavity outlet head bottom surface and side are equipped with bottom surface first arc-shaped sheet and side second arc-shaped sheet respectively.A side second arc-shaped sheet includes side second arc-shaped sheet side wall, side second arc-shaped sheet top wall, during assembly, plastic sound attenuation cavity outlet head bottom surface and cylinder cover installation groove bottom surface are pasted first, the other end of plastic sound attenuation cavity head is pressed, and bottom surface first arc-shaped sheet is deformed to generate elasticity.Under the extrusion of the pressure, the opening width of the side second arc-shaped sheet is narrowed until it slides into the cylinder cover slot cover plate, the side wall of the side second arc-shaped sheet of the side second arc-shaped sheet and the side of the cylinder cover side installation slot opening are pasted, the top wall of the side second arc-shaped sheet and the cylinder cover slot cover plate of the cylinder cover side installation slot opening are contacted, and the effect of fixed locking is achieved.The installation process is convenient, simple and easy to operate.The bottom surface first arc-shaped sheet is extruded by the cylinder cover side installation slot and valve plate, and the side second arc-shaped sheet is extruded by the cylinder cover side installation slot side wall, in addition, the cylinder cover slot cover plate also presses the top surface of the glass sheet, so that it does not slip out.The elastic force of the structure increases in the left and right directions, which can relieve the extrusion of the sealing rib in the left and right directions on the cylinder cover gasket, and improve the reliability.

[0039] In summary, by means of the above technical scheme of the utility model, through the optimization and improvement design of the utility model product, the plastic sound attenuation cavity realizes self-locking function through the elastic deformation of the bottom surface first arc-shaped sheet and the side second arc-shaped sheet, the traditional metal cylinder cover clamp is cancelled, the assembly process is simplified, and the production cost is reduced, thereby improving the sealing reliability, reducing the risk of gasket damage, reducing the production control difficulty, enhancing the installation stability, and reducing the effects of gas leakage and noise

[0040] The above only describes preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A sound deadening cavity-cylinder head structure with self-locking function, characterized by, The application relates to a plastic sound-damping cavity (6) and a cylinder cover (11) which are arranged in a clamping mode, wherein the bottom surface and the side surface of the outlet head of the plastic sound-damping cavity (6) are respectively provided with a bottom surface first arc-shaped sheet (7) and a side surface second arc-shaped sheet (8); the cylinder cover (11) is provided with a cylinder cover mounting groove (12), the cylinder cover mounting groove (12) is provided with a cylinder cover side surface mounting groove opening (14), the side surface second arc-shaped sheet (8) has an outward bending arc in a free state, the opening width of the side surface second arc-shaped sheet (8) is greater than the width of the cylinder cover side surface mounting groove opening (14), and the plastic sound-damping cavity (6) is arranged in a self-locking clamping mode with the cylinder cover mounting groove (12) of the cylinder cover (11) through the bottom surface first arc-shaped sheet (7) and the side surface second arc-shaped sheet (8).

2. The sound attenuation cavity-cylinder head structure with self- locking function according to claim 1, characterized in that, The side surface second arc-shaped sheet (8) comprises a side surface second arc-shaped sheet side wall (9) and a side surface second arc-shaped sheet top wall (10).

3. The sound attenuation cavity-cylinder head structure with self- locking function according to claim 1, characterized in that, The cylinder cover (11) comprises a cylinder cover mounting groove bottom surface (13), the bottom surface first arc-shaped sheet (7) is pressed from front to back by the cylinder cover mounting groove bottom surface (13) and a valve plate (16) during assembly, is elastically deformed and clamped into the cylinder cover mounting groove (12).

4. The sound attenuation cavity-cylinder head structure with self- locking function according to claim 1, characterized in that, The side surface second arc-shaped sheet (8) is pressed from left to right by the side wall of the cylinder cover side surface mounting groove opening (14) during assembly, is elastically deformed and clamped into the cylinder cover side surface mounting groove opening (14).

5. The sound attenuation cavity-cylinder head structure with self- locking function according to claim 2, characterized in that, The cylinder cover side surface mounting groove opening (14) is provided with a cylinder cover groove opening cover plate (15), and the side surface second arc-shaped sheet top wall (10) abuts against the cylinder cover groove opening cover plate (15).

6. The sound attenuation cavity-cylinder head structure with self- locking function according to claim 1, characterized in that, The bottom surface first arc-shaped sheet (7) and the side surface second arc-shaped sheet (8) are integrally injection molded by a plastic material.

7. The sound attenuation cavity-cylinder head structure with self- locking function according to claim 1, characterized in that, The outward bending arc of the side surface second arc-shaped sheet (8) ranges from five to fifteen degrees, so as to adapt to cylinder cover side surface mounting groove openings (14) of different sizes.

8. The sound attenuation cavity-cylinder head structure with self- locking function according to claim 1, characterized in that, The contact surface between the outlet head of the plastic sound-damping cavity (6) and the cylinder cover mounting groove (12) is provided with anti-skid lines for enhancing the fixing effect.

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