Air compressor

Abstract

An air compressor comprises an air storage tank, a pair of air cylinder assemblies fixed to the upper portion of the air storage tank, a driving assembly contained in the pair of air cylinder assemblies and a capacitor box installed on the periphery of the air storage tank, and the driving assembly reciprocates in the pair of air cylinder assemblies. External air is compressed and stored in the air storage tank; the capacitor box comprises a bottom plate fixed to the gas storage tank and a capacitor box body installed on the bottom plate in a sliding mode. After the bottom plate is fixed to the gas storage tank, the capacitor box body can be installed on the bottom plate in a sliding mode from front to back through the sliding grooves in the bottom, convenience and rapidness are achieved, and installation is reliable.

Description

[Technical field]

[0001] The utility model relates to the technical field of air compressors, in particular to an air compressor with an improved capacitor box installation method. [Background Technology]

[0002] An air compressor is an industrial equipment that compresses gas. It is a device that converts mechanical energy into gas pressure energy. Air compressors are widely used in machinery, medical, food, automobile, chemical and building materials industries. The common piston compressors in our daily life include a gas tank, an electric motor installed on the gas tank, a drive mechanism driven by the electric motor and an exhaust pipe for transmitting gas. The electric motor drives the piston of the drive mechanism to make reciprocating linear motion in the cylinder to perform suction and exhaust actions. In addition, a capacitor device is usually fixed on the gas tank. The capacitor device is electrically connected to the motor, which can provide stable current, help the motor start, improve the efficiency of the motor, and protect the motor.

[0003] The current mainstream method of fixing capacitor devices is to first fix the bracket to the outer periphery of the gas tank by welding or screwing, and then fix the capacitor box to the bracket by screwing. This method requires tightening or loosening the screws when installing and removing the capacitor box, which is a relatively complicated process.

[0004] In view of this, it is indeed necessary to provide an improved air compressor to overcome the defects of the prior art. [Contents of the utility model]

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an air compressor with an improved capacitor box installation method, which can conveniently and quickly install and remove the capacitor box on the air compressor.

[0006] The utility model adopts the following technical solution to solve the problems of the prior art: an air compressor, comprising an air tank, a pair of cylinder assemblies fixed above the air tank, a driving assembly accommodated in the pair of cylinder assemblies, and a capacitor box installed on the periphery of the air tank, wherein the driving assembly reciprocates in the pair of cylinder assemblies to compress external gas and store it in the air tank; the capacitor box comprises a bottom plate fixed to the air tank and a capacitor box body slidably installed to the bottom plate.

[0007] A further improved solution is: the bottom plate includes a base fixed to the surface of the gas storage tank and a matching portion extending from the base, and the capacitor box body is slidably mounted on the matching portion.

[0008] A further improved solution is: the bottom of the left and right sides of the capacitor box body include sliding grooves bent inwardly, and the sliding grooves are slidably installed on the matching portion from front to back.

[0009] A further improved solution is: a side plate protrudes from the bottom of the rear end of the capacitor box body, and the bottom surface of the side plate is in contact with the upper surface of the matching portion.

[0010] A further improved solution is: the side plate includes a recess running through the middle, the upper surface of the matching portion is provided with a protrusion, the protrusion is located at the rear end of the matching portion, and the protrusion cooperates with the recess to limit the movement of the capacitor box body.

[0011] A further improved solution is: the base and the matching portion are integrally formed, and the bottom plate is made of metal material.

[0012] A further improvement is that the thickness of the base is not less than 2 mm, and the width of the slide groove in the left-right direction is not less than 3 mm.

[0013] A further improved solution is: the bottom plate is welded and fixed to the gas storage tank.

[0014] A further improvement is that the capacitor box is made of metal material or plastic.

[0015] A further improvement is that the capacitor box has an inverted U-shape in the cross section in the left-right direction.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the capacitor box includes a bottom plate fixed to the gas tank and a capacitor box body slidably mounted to the bottom plate; after the bottom plate is first fixed to the gas tank, the capacitor box body can be slidably mounted to the bottom plate from front to back through the slide groove at the bottom, which is convenient, fast and reliable to install. [Drawings]

[0017] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings:

[0018] Figure 1 It is a three-dimensional schematic diagram of the air compressor of the utility model;

[0019] Figure 2 yes Figure 1 A three-dimensional schematic diagram of a capacitor box of an air compressor shown;

[0020] Figure 3 yes Figure 2 A cross-sectional view of a capacitor box of an air compressor shown;

[0021] Figure 4 yes Figure 2 Another cross-sectional view of the capacitor box of the air compressor shown.

[0022] Meaning of the reference numerals in the figures:

[0023] Air compressor 100 Air tank 1

[0024] Cylinder assembly 2 Cylinder head 20

[0025] Cylinder 21 Capacitor box 3

[0026] Bottom plate 30 Base 301

[0027] Matching portion 302 Protrusion 303

[0028] Capacitor box body 31 Slide slot 32

[0029] Side plate 33 Notch 34

[0030] Opening 35 Handle 4

[0031] Roller 5 [Specific implementation method]

[0032] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. For example, the words "upper", "lower", "front", "back", etc., which indicate the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0033] See also Figures 1 to 4 The utility model is shown as an air compressor 100, which includes a cylindrical gas tank 1, a motor assembly (not shown) fixed above the gas tank 1, a pair of cylinder assemblies 2 connected to both ends of the motor assembly, a driving assembly (not shown) accommodated in the pair of cylinder assemblies 2, a capacitor box 3 fixed to the outer periphery of the gas tank 1, a handle 4 installed on the gas tank 1 and a roller 5 installed below the gas tank 1.

[0034] The motor assembly drives the driving assembly to reciprocate in a pair of the cylinder assemblies 2 to compress the external gas and store it in the gas storage tank 1; the handle 4 is located in front of the pair of cylinder assemblies 2. By lifting and pulling the handle 4, the air compressor 100 can be moved to different work places with the assistance of the roller 5, which is convenient and quick.

[0035] Furthermore, the pair of cylinder assemblies 2 includes a cylinder head 20 disposed at the upper end and a cylinder body 21 located below the cylinder head 20 .

[0036] The capacitor box 3 is arranged adjacent to the motor assembly to facilitate electrical connection between the two; a capacitor (not shown) is installed inside the capacitor box 3, and the capacitor can stabilize power output, store electrical energy, and eliminate irregular fluctuations in the power supply, thereby providing a strong guarantee for the normal operation of the air compressor 100.

[0037] See also Figures 2 to 4 As shown, the capacitor box 3 includes a bottom plate 30 fixed on the gas storage tank 1 and a capacitor box body 31 slidably mounted on the bottom plate 30. The bottom plate 30 is made of metal material and can be fixed to the outer peripheral surface of the gas storage tank 1 by welding or screwing.

[0038] Specifically, the bottom plate 30 includes a base 301 fixed to the surface of the gas tank 1 and a mating portion 302 in contact with the capacitor box body 31, and the mating portion 302 is extended from the base 301; in this embodiment, the base 301 and the mating portion 302 are square, and the length of the base 301 in the left-right direction is smaller than the length of the mating portion 302 in the left-right direction.

[0039] Furthermore, the base portion 301 and the matching portion 302 are integrally manufactured from metal material.

[0040] The bottom of the capacitor box body 31 on both sides includes a slide groove 32 bent inwardly, and the rear end of the slide groove 32 slides from the front end of the matching portion 302 and slides to the rear end of the matching portion 302.

[0041] Furthermore, the thickness of the base 301 is not less than 2 mm, and the width of the slide groove 32 in the left-right direction is not less than 3 mm.

[0042] Furthermore, a side plate 33 is protruded from the bottom of the rear end of the capacitor box body 31, and the bottom surface of the side plate 33 is attached to the upper surface of the matching portion 302, and the side plate 33 includes a through recess 34. A protrusion 303 is provided on the upper surface of the matching portion 302, and the protrusion 303 is located at the rear end of the matching portion 302, and the shape of the protrusion 303 is adapted to the shape of the recess 34; as the capacitor box body 31 slides in, the protrusion 303 falls into the recess 34, and at this time, there is a click sound when the two are engaged, which is used to prompt the operator that the capacitor box body 31 is assembled in place and limit the sliding of the capacitor box body 31.

[0043] An opening 35 is provided on the left side of the capacitor box body 31 , and the lead wire of the capacitor passes through the opening 35 so that the capacitor is electrically connected to the motor assembly.

[0044] In this embodiment, the bottom plate 30 is fixed to the outer surface of the gas storage tank 1 by welding; optionally, the bottom plate 30 can also be fixed to the gas storage tank 1 by screws.

[0045] Furthermore, the capacitor box body 31 is integrally injection molded from plastic.

[0046] In this embodiment, the capacitor box 3 includes a bottom plate 30 fixed to the gas tank 1 and a capacitor box body 31 slidably installed on the bottom plate 30; after the bottom plate 30 is first fixed to the gas tank 1, the capacitor box body 31 can be slidably installed from front to back to the bottom plate 30 through the slide groove 32 at the bottom, which is convenient, fast and reliable to install.

[0047] The utility model is not limited to the above specific implementations. Those skilled in the art can easily understand that there are many alternatives to the air compressor of the utility model without departing from the principle and scope of the utility model. The protection scope of the utility model shall be based on the content of the claims.

Claims

1. An air compressor, comprising a gas storage tank, a cylinder assembly fixed above the gas storage tank, a drive assembly accommodated in the cylinder assembly, and a capacitor box installed on the outer periphery of the gas storage tank, wherein the drive assembly reciprocates in the cylinder assembly to compress external gas and store it in the gas storage tank; Features: The capacitor box comprises a bottom plate fixed to the gas storage tank and a capacitor box body slidably mounted to the bottom plate.

2. The air compressor according to claim 1, Features: The bottom plate includes a base portion fixed to the surface of the gas storage tank and a matching portion extending from the base portion, and the capacitor box body is slidably mounted on the matching portion.

3. The air compressor according to claim 2, Features: The bottom of the capacitor box body on both sides includes a slide groove bent inwardly, and the slide groove is slidably installed on the matching part from front to back.

4. The air compressor according to claim 3, Features: A side plate protrudes from the bottom of the rear end of the capacitor box body, and the bottom surface of the side plate is in contact with the upper surface of the matching portion.

5. The air compressor according to claim 4, Features: The side plate includes a notch running through the middle, and a protrusion is provided on the upper surface of the matching portion. The protrusion is located at the rear end of the matching portion, and the protrusion cooperates with the notch to limit the movement of the capacitor box body.

6. The air compressor according to claim 5, Features: The base and the matching portion are integrally formed, and the bottom plate is made of metal material.

7. The air compressor according to claim 3, Features: The thickness of the base is not less than 2 mm, and the width of the slide groove in the left-right direction is not less than 3 mm.

8. The air compressor according to claim 1, Features: The bottom plate is welded and fixed to the gas storage tank.

9. The air compressor according to claim 1, Features: The capacitor box is made of metal material or plastic.

10. The air compressor according to claim 1, Features: The capacitor box has an inverted U-shape in a cross section in the left-right direction.

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