TWI548812B - Air compressor device - Google Patents

Description

Air compressor unit

The invention provides an air compressor device, in particular to a mechanical safety valve that does not need to be installed, so that the air compressor can be kept within a safe pressure range during the operation phase, which is sufficient to protect the tire from overfilling when inflated. Invention of the phenomenon of tire pressure safety value.

The present inventors have long been committed to the development of small air compressors, and have not only transformed the air compressors, which were laborious and complicated in the early stage, into a product that is compact in construction and quick to assemble. In US Patent No. 7,462,018, the outlet tube of the case is provided with a plurality of ducts, one of which is used to assemble a mechanical pressure relief valve. (safety valve), when the piston body of the air compressor moves linearly in the cylinder at the top dead center, the top plane of the piston head of the piston body of the case is completely against the top wall surface of the cylinder compression chamber, on the piston body The action of the stroke allows the compressed air to completely enter the gas-cating seat for communication with the cylinder compression chamber. However, under the improper inflation operation, it is easy for the air compressor to generate a higher tire pressure than the tire to be tested. In this case, a mechanical pressure relief valve must be additionally used to automatically relieve the pressure. If the mechanical safety valve is stuck due to a long service life, the user inflates the tire. The process can cause the tire to be overfilled and prone to a puncture hazard.

The main object of the present invention is to provide an air compressor device, especially one It is not necessary to install a mechanical pressure safety valve to keep the air compressor within the pressure safety value during the operation phase, which is enough to protect the tire from inflating when the safety value of the tire pressure is not generated. The outer wall of the cylinder of the air compressor is provided with a manifold having a secondary air chamber, and the auxiliary air chamber is in communication with the cylinder compression chamber but is not connected to the gas storage seat for the air outlet, when the top plane of the piston head of the air compressor is completely opposite The top wall of the cylinder compression chamber, when part of the compressed air enters the auxiliary air chamber, not only makes the movement of the piston body under the stroke more smooth, but also allows the air compressor to prevent the occurrence of a value beyond the safe pressure value without a separate pressure safety valve. Inflating action.

In order to achieve the above object, the solution of the present invention is: an air compressor device comprising: a casing body having an air compressor capable of generating air pressure by starting from a power source, the air compressor system comprising There is a main frame body, the main frame body can be coupled to a cylinder for the piston body to operate, and a power mechanism including a motor can be fixed thereon, and a weight rotating disk having a crank pin can be disposed on the main frame body. The crank pin can pivot the piston body, and the motor can drive the crank pin to perform circular motion, thereby driving the piston head of the piston body to reciprocate in the cylinder, so that most of the compressed air in the cylinder can be pushed into the air compressor. In the gas storage seat, the gas storage seat is provided with a plurality of manifolds. When the piston body reciprocates in the cylinder at the top dead center, the top plane of the piston head of the piston body completely abuts against the top wall surface of the cylinder compression chamber. At this point, a portion of the compressed air enters the secondary air chamber located in the manifold that is disposed on the outer wall of the cylinder but in communication with the cylinder compression chamber.

The air storage seat of the air compressor is adjacent to the top wall of the cylinder at the bottom and forms a common intermediate wall, and an air hole and a circulation port are provided on the intermediate wall, and the air hole allows the compression chamber of the inner cavity of the cylinder to The contents of the gas storage chamber are connected, and the flow port allows the compression chamber of the inner chamber of the cylinder to communicate with the auxiliary air chamber surrounded by the manifold provided with the adjustment regulating valve; a valve seat can be placed in the foregoing The upper end of the air hole of the intermediate wall; one end of one spring can be placed on the valve seat, and the other end is against the top cover.

After adopting the above structure, the air compressor device of the present invention can achieve the installation without mechanical The pressure safety valve can keep the air compressor within the safe pressure range during the operation phase, which is enough to protect the tire from inflating the safety value of the tire pressure, not only to reduce the manufacturing cost, but also to make the piston The movement of the stroke under the body is smoother.

The specific construction of the present invention and its practical functions are described in detail below.

(1) ‧‧‧Machine box

(11)‧‧‧Switch

(12)‧‧‧Touch plate

(121)‧‧‧Pole

(13) ‧‧‧through holes

(20)‧‧‧Main frame

(21)‧‧‧Motor

(22)‧‧‧Spindles

(23) ‧‧‧Gears

(24)‧‧‧ crank pin

(25)‧‧‧ piston body

(26)‧‧‧ piston head

(260)‧‧‧Top plane

(27)‧‧‧Dissipation fan blades

(28)‧‧‧ Weight rotating disk

(3) ‧‧‧ cylinder

(30)‧‧‧Intermediate wall

(31)‧‧‧ top wall

(32) ‧‧‧ stomata

(33) ‧‧‧Compression chamber

(34) ‧‧‧ lumen

(35) ‧ ‧ Circulation

(41)‧‧‧ Seat

(42) ‧ ‧ spring

(5) ‧‧‧ gas storage seat

(51) ‧‧‧Content Room

(52)(53)(54)(55)‧‧‧Management

(541)‧‧‧Sub-chamber

(6) ‧ ‧ top cover

(61)‧‧‧ Rotary button

(62) ‧‧‧ cylindrical column

(621)‧‧‧Convex ring

(622)‧‧‧ Ring groove

(63) ‧‧‧Bottom edge

(64) ‧‧‧Depression

(65) ‧‧‧Seal ring

(7)‧‧‧Discharge valve

(71)‧‧‧Cap type soft cover

(711) ‧ ‧ outer head

(712)‧‧‧Bumps

(713)‧‧‧Circulation slots

(72)‧‧‧ Nuts

(721) ‧ ‧ openings

(722)‧‧‧through holes

(8) ‧‧‧ regulating valve

(9) ‧ ‧ pressure gauge

(91)‧‧‧Hose

First Fig.: is a perspective view of a casing of an air compressor device of the present invention.

Second drawing: is an exploded perspective view of the air compressor of the present invention.

Third Fig.: Another perspective exploded view of the air compressor of the present invention.

Figure 4 is a schematic cross-sectional view of an air compressor unit of the present invention.

Figure 5: A partial enlarged view of the fourth figure.

Fig. 6 is a schematic view showing the action of the present invention for controlling the pressure relief valve to perform pressure relief.

Figure 7 is a schematic view showing the action of adjusting the regulating valve to change the volume of the sub-chamber.

Figure 8 is a schematic cross-sectional view of another angle of the present invention.

In order to further disclose the technical means of the present invention, the present invention will be described in detail by way of specific embodiments.

Please refer to the first to fourth figures. The air compressor device of the present invention comprises a casing 1 , and a switch 11 , a contact plate 12 and a hollow shape are arranged on the casing 1 . The through hole 13 is provided with an air compressor inside the casing 1 , and the air compressor can design the cylinder 3 for providing the piston body 25 and the main frame 20 for fixing the motor 21 to be integrally formed. The main frame body 20 can fix the power mechanism of the air compressor, and the power mechanism includes a motor 21, a pinion 22 for transmission purposes, a large gear 23, a weight rotating disk 28 having a crank pin 24, and a dispersion. Cooling fan blades 27 for heat use. The piston 21 of the piston body 25 can be reciprocally compressed in the inner cavity 34 of the cylinder 3 by the motor 21 driving the power mechanism of the air compressor, and the compressed air can be moved through the air hole 32 to move the valve seat 41. The spring 42 is compressed so that the compressed air can enter the air reservoir 5. The gas storage seat 5 can be provided with a plurality of manifolds 52, 53, 55 connected to the gas storage seat 5 (refer to the eighth figure at the same time), the manifold 52 can be connected to a hose 91; the manifold 53 can be It is applied to set a bleed valve 7; the manifold 55 can be provided with a pressure gauge 9. The most important structural feature of the present invention is that a manifold 54 is disposed on the outer wall of the cylinder 3. The manifold 54 is provided with a sub-air chamber 541, and communicates with the compression chamber 33 of the cylinder 3 through a flow port 35. The air chamber 541 is not in communication with the content chamber 51 of the air reservoir 5 for air outlet use, and a swingable rotation regulating valve 8 is provided at the outer end opening of the manifold 54 to adjust the screwing depth of the regulator valve 8 The volume size state of the sub air chamber 541 can be adjusted.

At the same time, in conjunction with the fourth to seventh figures, the gas storage base 5 is adjacent to the top wall 31 of the cylinder 3 at the bottom portion 50 and forms a common intermediate wall 30. The intermediate wall 30 is provided with an air hole 32 and a flow port 35. The air hole 32 allows the compression chamber 33 of the inner chamber 34 of the cylinder 3 to communicate with the inner chamber 51 of the air reservoir 5, and the flow port 35 allows the compression chamber 33 of the inner chamber 34 of the cylinder 3 to be associated with the manifold 54 The gas chamber 541 is in communication; a valve seat 41 can be placed at the upper end of the air hole 32 of the intermediate wall 30. a rectangular top cover 6 (refer to FIG. 5), a rotary knob 61 is disposed at an upper end thereof, and a cylindrical column 62 extends downwardly from a central portion of the top cover 6, and a plurality of cylinders 62 extend outwardly from the cylindrical column 62. A plurality of concave ring grooves 622 are formed between the top cover 6 and the convex ring 621, and the cylindrical column 62 has a bottom end edge 63 at the bottom end edge 63 toward the cylinder. The inner portion of the column 62 further forms a convex pressing portion 64; the number of sealing rings 65 can be sleeved on the annular groove 622 of the cylindrical column 62. The top cover 6 can be coupled to the air reservoir 5 correspondingly. As shown in the second figure, by rotating the rotary knob 61, the top cover 6 is relatively firmly locked and coupled to the air reservoir 5, and there is no Loose. One end of a spring 42 can be placed on the aforementioned valve seat 41, and the other end is abutted against the convex ring 621 on the cylindrical post 62 of the top cover 6. Please also refer to the third and fifth figures, a deflation valve 7, which comprises a hollow hat-shaped soft cover 71, one at one end The outer end of the outer end 711 is provided with an outer ring, and the outer ring is provided with a plurality of bumps 712 spaced apart from each other to form a flow groove 713 between the spaced apart bumps 712; a nut 72 having one end An opening 721, the other end of the nut 72 extends through a through hole 722 having an inner diameter smaller than the opening 721; at this time, the cap type soft cover 71 can be placed into the manifold 53 and the end of the through hole 722 of the nut 72 can be The cap type soft cover 71 is coupled into the manifold 53. At this stage, the outer ring of one end of the cap type soft cover 71 is abutted against the inner wall of the manifold 53, and the other end of the cap type soft cover 71 is abutted against the nut 72. At the end of the through hole 722, the ejector 121 of the inner side of the touch panel 12 of the casing 1 can pass through a nut 72 and correspond to the outer end 711 of the cap-shaped soft cover 71. When the touch panel 12 is pressed, the touch panel 12 can be touched. Pressing to the outer end 711 of the cap-shaped soft cover 71 of the deflation valve 7, the cap-shaped soft cover 51 can be compressed and deformed, and the excess pressure of the inflated body is vented by the manifold 53 provided with the venting valve group, such as The fifth and sixth figures are shown. A regulating valve 8 is screwed into the manifold 54 and can be rotated to adjust the inner volume of the auxiliary air chamber 541. The outer peripheral wall of the regulating valve 8 is provided with a concave ring groove 81, and a sealing ring is sleeved thereon. 82.

When the piston body 25 of the present invention performs a reciprocating linear motion in the inner cavity 34 of the cylinder 3 at the top dead center, the top plane 260 of the piston head 26 completely abuts against the top wall 31 of the compression chamber 33 of the cylinder 3 (as shown in the seventh figure). At this time, most of the compressed air compresses the valve seat 41 via the air hole 32 provided in the top wall 31 of the cylinder 3 to compress the spring 42 so that the compressed air can flow into the content chamber 51 of the air reservoir 5, and then Each of the air outlet manifolds 52, 53, 55 is coupled to an item of different nature and function. However, some of the compressed air outputted from the cylinder 3 still enters the sub-chamber 541 of the manifold 54 via the flow port 35. By the amount of air contained in the sub-chamber 541, the air compressor is not only inflated. There is no such thing as a range of safe pressure values, and the piston body 25 can operate smoothly when it starts its undershooting stroke. The valve seat 41 can still be resisted by the pressing portion 64 at the bottom end of the cylindrical column 62 of the top cover 6 when it is opened, and its operation state can be as shown in FIGS. 7 and 8.

Please refer to the sixth and seventh figures. If the internal pressure of the inflated body has exceeded the range of the safe pressure value, the user can also perform the pressure relief action by the operation of the venting valve 7.

In view of the foregoing, the present invention has a manifold 54 having a sub-chamber 541 at the periphery of the cylinder 3, The sub air chamber 541 is connected to the compression chamber 33 of the cylinder 3 through a flow port 35, and the air reservoir 5 extending outside the cylinder 3 is connected to the compression chamber 33 of the cylinder 3 by a gas hole 32, but the sub air chamber 541 is connected. And the air chamber 5 content chamber 51 is not in communication, so that most of the compressed air is output to the other functional components and the objects to be inflated through the air outlet manifold provided by the air reservoir 5, and the other portion of the compressed air enters and remains. In the auxiliary air chamber 541, the structural design not only makes the piston body 25 not operate to generate an inflation behavior exceeding the safe range of pressure, and does not need to be provided with a pressure safety valve, and at the same time, the action of the piston body 25 under the stroke is more Smooth and practical.

(1). . . Case

(12). . . Touch plate

(121). . . Pole

(20). . . Main frame

(twenty two). . . gear

(twenty three). . . big gear

(twenty four). . . Crank pin

(25). . . Piston body

(26). . . Piston head

(28). . . Weight rotating disk

(3). . . cylinder

(30). . . Intermediate wall

(31). . . Top wall

(32). . . Stomata

(33). . . Compression chamber

(34). . . Inner cavity

(35). . . Circulation

(41). . . Seat

(42). . . spring

(5). . . Gas storage seat

(50). . . bottom

(51). . . Content room

(53) (54). . . Manifold

(541). . . Secondary air chamber

(6). . . Top cover

(61). . . Rotary button

(62). . . Cylindrical column

(63). . . Bottom edge

(64). . . Pressing department

(65). . . Sealing ring

(7). . . Vent valve

(71). . . Cap type soft cover

(711). . . Outer end

(713). . . Flow channel

(72). . . Nut

(8). . . Regulating valve

Claims (2)

An air compressor device comprises: a casing body having an air compressor capable of generating air pressure by starting from a power source, the air compressor driving the piston head of the piston body in the cylinder when the motor is actuated The reciprocating motion is carried out so that the compressed air in the cylinder can be pushed into the air storage seat of the air compressor, and the gas storage seat is provided with a plurality of manifolds connected to the gas storage seat, wherein: The outer wall of the cylinder of the air compressor is provided with a manifold having a sub air chamber, the outer end opening of the manifold is provided with a spirally rotating regulating valve, and the auxiliary air chamber is connected to the cylinder compression chamber but is not used for the gas storage seat. Connected, the regulating valve is screwed into the manifold and can be rotated to adjust the inner volume of the enclosed sub-chamber, when the top plane of the piston head of the air compressor completely abuts against the top wall of the cylinder compression chamber, At this time, part of the compressed air enters the auxiliary air chamber, which not only makes the action of the piston body under the stroke more smooth, but also allows the air compressor to prevent the generation of the charge beyond the safe pressure value range without a separate pressure safety valve. Action. The air compressor device according to claim 1, wherein the casing body is provided with a contact pressure plate; a manifold on the gas storage seat can be applied to a gas release valve, the gas release valve The utility model comprises a hollow hat-shaped soft cover, an outer end is arranged at one end, an outer ring is arranged at the other end, and a plurality of bumps are arranged at the outer ring, and a gap is formed between the spaced apart bumps. a flow nut; a nut having an opening at one end thereof, and the other end of the nut extends through a through hole having an inner diameter smaller than the opening; at this time, the cap type soft cover can be placed into the manifold, and then the through hole end of the nut Abutting the cap-shaped soft cover and incorporating it into the manifold, at this stage, the outer ring of one end of the cap-shaped soft cover is abutted against the inner wall of the manifold, and the other end of the cap-shaped soft cover is abutted against the through-hole end of the nut. The ejector rod on the inner side of the touch panel of the casing body can pass through a nut and corresponds to the outer end of the cap-type soft cover, that is, pressing the touch panel can be pressed to the outer end of the cap type soft cover of the deflation valve. The head allows the cap-shaped soft cover to be compressed and deformed, and the excess pressure of the inflated material is released through the flow channel and the through hole.