TWI708894B - Air venting structure of a cylinder of an air compressor - Google Patents

Abstract

An air venting structure of a cylinder of an air compressor contains a holder arranged on the cylinder, multiple air outlets defined on an outer wall of the holder, and a flexible film fitted on the outer wall of the holder. Thereby, the air compressor produces air, and the air enters into an air accommodation chamber of an air store seat after flowing through the multiple air outlets to push the flexible film, then the flexible film closes the air accommodation chamber quickly so as to increase compressed air greatly in the air accommodation chamber of the air store seat, and the compressed air flows into the air accommodation chamber quickly via the multiple air outlets, thus operating a piston smoothly and enhancing air pumping efficiency.

Description

Improvement of the air outlet structure of the air compressor

The present invention is an improvement of the air outlet structure of the cylinder of an air compressor, in particular to a cylinder provided with an outlet tube seat, the outer tube wall of the outlet tube seat is provided with a plurality of air outlet holes, and the outer tube wall is provided with an elastic Membrane, the compressed air generated by the air compressor can enter the air storage chamber of the air storage seat by pushing the elastic membrane through the plurality of air outlets, and use the fast closing feature of the elastic membrane to allow compression per unit time into the air storage chamber of the air storage seat The air volume is greatly increased, so that the compressed air can quickly enter the air storage chamber through the air outlet, so that the operation of the piston body is smoother and the pumping efficiency is improved.

The air compressor used at this stage basically has a cylinder in its structure. The cylinder can provide a piston body to reciprocate to generate compressed air. The generated compressed air can be pushed by the cylinder's air outlet to a valve mechanism to compress Air enters another space for storing compressed air. This space can be a space in an air storage seat (or an air collection tank). The air storage seat is also equipped with an air outlet to deliver compressed air to the air to be inflated. In order to complete the whole inflation purpose. Since there is only a single vent hole between the conventional cylinder and the air storage seat, the opening or closing of the vent hole is controlled by a valve mechanism, and the valve mechanism is composed of a valve seat and a spring. The piston body produces The compressed air pushes the valve seat and compresses the spring. The compressed air can enter the air storage chamber of the air storage seat. Since the compressed air collected in the air storage chamber will produce back pressure on the valve seat, the back pressure will be suppressed during the pumping phase The opening of the valve seat, in contrast, is that the compressed air generated during the operation of the piston body will have more resistance and not smooth when it moves the valve seat. This factor makes the piston body more resistant and slows down the inflation speed. , It is easy to cause the motor of the air compressor to overheat, reduce the efficiency of the motor, and even cause the loss of the latent motor to burn. In view of the lack of the cylinder structure design of the conventional air compressor, the inventor developed it and developed the present invention after many efforts.

The main purpose of the present invention is to provide an improvement in the air outlet structure of the cylinder of an air compressor. The air compressor is provided with an outlet tube seat on the cylinder. The outlet tube seat and a cylinder that provide the operation of the piston body are assembled separately, and combined with The engine plate combined with the cylinder can provide the fixing of the motor.

Another object of the present invention is to provide an improvement in the air outlet structure of the cylinder of an air compressor. The air compressor is provided with an outlet tube seat on the cylinder, and the outer wall of the outlet tube seat is provided with a plurality of outlet holes outside the outlet tube seat. The cylinder wall is covered with an elastic film. The compressed air generated by the air compressor can enter the air storage chamber of the air storage seat by pushing the elastic film through the plurality of air outlets. The quick closing feature of the elastic film allows the air to enter the air storage seat per unit time. The amount of compressed air in the air storage chamber is greatly increased.

In order for the examiner to understand the specific structure of the present invention in more detail, please refer to the first and second figures. The air compressor in the present invention will provide the cylinder 2 for the operation of the piston body 14 and the plate 11 for the fixing of the motor 12 , The cylinder 2 and the machine plate 11 can be designed to be integrally formed, or they can be separated and combined. One end of the cylinder 2 has an opening into which the piston body 14 can extend, and the other end has a top wall 21. The motor 12 drives the gear 13 so that the piston body 14 can reciprocate in the cylinder 2 to generate compressed air. The compressed air can enter the outlet cylinder seat 3 through the circulation port 22 of the top wall 21. The outer cylinder wall 30 is provided with a plurality of outlet holes 31, 32, and an elastic film 4 is sleeved on the outer cylinder wall 30 of the outlet cylinder seat 3. The compressed air generated by the air compressor can be moved elastically by the plurality of outlet holes 31, 32 The membrane 4 enters the air storage chamber 50 of the air storage seat 5. The air storage seat 5 is used to collect and store the generated compressed air, and the air storage seat 5 is provided with one or more air outlet manifolds 52,53,54,55. Used as a hose (not shown in the figure) for the connected pneumatic tires, another manifold 53 can be used to quickly connect a pressure gauge 6, and multiple manifolds 54 and 55 can be respectively provided with a pressure relief valve 7 and A safety valve 8.

Please refer to the first to fourth figures at the same time. In the present invention, the design of the top wall 21 of the cylinder 2 is completely different from the conventional single outlet hole. The top wall 21 is provided with the aforementioned outlet cylinder seat 3, which The top wall 21 of the cylinder 2 is designed as a separate assembly unit, and the bottom of the outlet tube seat 3 is provided with a positioning seat 36, and an outer ring groove 360 is provided on the outer peripheral wall of the positioning seat 36, and a sealing ring is sleeved on the outer ring groove 360 37. The outlet cylinder seat 3 with the sealing ring 37 is placed in the positioning groove 210 provided on the top wall 21 of the cylinder 2 by the positioning seat 36, and the outlet cylinder seat 3 is provided with a plurality of outlet holes on the outer cylinder wall 30 31, 32 and at least one ring groove 33. The plurality of air outlet holes 31, 32 can also be designed with the same or different apertures. An elastic membrane 4 is sleeved on the cylinder wall 30 outside the outlet cylinder seat 3. One end of the elastic membrane 4 At least one convex ring 41 is provided on the inner surface, which can be clamped and fixed to the ring groove 33 of the outer wall 30 of the outlet tube seat 3 to prevent the elastic film 4 from slipping off the outer tube wall 30 of the outlet tube seat 3. The other end of the elastic film 4 can close the aforementioned air outlets 31 and 32, as shown in the second figure. The aforementioned air outlets 31, 32 are in an open or closed state, which is completely controlled by the elastic membrane 4 sheathed on the outer cylinder wall 30 of the outlet cylinder seat 3 (refer to the third and fourth figures); the cylinder 2 is generally close to A long side plate 23 extends horizontally from the front and back sides of the top wall 21. The left and right ends of the two long side plates 23 extend upwards. Two corresponding and inverted L-shaped inserts 231, the inserts 231 A receiving groove 232 is formed between the long side plate 23, as shown in the first and second figures. A cylindrical air storage seat 5 with an opening 51 and an air storage chamber 50 at one end. The air storage seat 5 is provided with a plurality of manifolds 52, 53, 54 and 55 communicating with the air storage seat 5. The air storage seat 5 At the opening 51, a flat side plate 56 of appropriate thickness is extended to the surroundings, and an L-shaped panel 561 is provided on each of the two opposite flat side plates 56. A containing groove is formed between the panel 561 and the flat side plate 56 562, by rotating the air holder 5, the flat side plate 56 of the air holder 5 can quickly enter the receiving groove 232 of the insert body 231, and the long side plate 23 of the cylinder 2 is received in the receiving groove of the panel 561 In 562, the air reservoir 5 is very firmly combined with the cylinder 2 so that the air reservoir 5 and the cylinder 2 are movably assembled or disassembled, and the air reservoir 5 can resist the aforementioned outlet tube seat. 3 The top surface 340 makes the outlet tube seat 3 stably fixed in the air storage chamber 50 of the air storage seat 5.

Please refer to Figures 2 to 4, the top surface 340 of the outlet tube seat 3 is provided with at least one recess 34. The present invention can use at least one recess 34 to change the pressure storage space 35 to change the compression ratio. To achieve a reasonably controlled high pressure value, when the longitudinal depth of the recess 34 is A, and the longitudinal depth A>0, the pressure storage space 35 in the outlet cylinder seat 3 is reduced, so that the compressed air can quickly pass through the outlet hole 31 , 32 enters the air storage chamber 50, and the maximum output pressure value at this time is also relatively high.

Please refer to the second and fourth figures. The compressed air generated by the continuous reciprocating movement of the piston body 14 in the cylinder 2 can push the elastic membrane 4 so that the compressed air can enter the air storage chamber 50 of the air storage seat 5 through the air outlets 31 and 32 Inside. During the period from the beginning of the movement to the end of the movement of the piston body 14 of the cylinder 2, the amount of compressed air generated in the initial stage of air pumping can quickly enter the air storage chamber 50 through the air outlets 31 and 32 at the same time, using the elastic film 4 to quickly The shut-off feature greatly increases the amount of compressed air entering the air storage chamber 50 of the air storage seat 5 per unit time; when it comes to the middle and late stages of air pumping, since a large amount of compressed air has already entered the air storage chamber 50, The compressed air inside will produce a reaction force on the elastic membrane 4, which is represented by back pressure in this article. This back pressure phenomenon will inhibit the opening of the elastic membrane 4, which also means that the piston body 14 has more resistance to pushing compressed air. The present invention also has outlet holes 31 and 32 of different diameters and the elastic membrane 4 as a cooperation. Although the back pressure existing in the air storage chamber 50 makes the elastic membrane 4 in a compressed state, the outlet holes 31 of different diameters are blocked. 32. The back pressure of the elastic membrane 4 is different, so that the compressed air can preferentially and effectively push the elastic membrane 4 with a smaller back pressure, so that the compressed air continuously generated in the cylinder 2 can easily enter the air storage chamber 50. On the whole, it can make the piston body 14 operate smoothly and have pumping efficiency, and can achieve the inflation speed more easily and quickly.

Another embodiment of the present invention can be shown in Figures 5 and 6, where the cylinder 2 and the air reservoir 9 are formed in one piece. The top of the air reservoir 9 has an upper opening 91. The aforementioned outlet tube seat 3 is The upper port 91 is inserted into the air storage chamber 90 of the air storage seat 9, and the positioning seat 36 of the air outlet tube seat 3 is seated on the top wall 21 of the cylinder 2, and a top cover 92 is used to abut against the air outlet tube seat 3 The top surface 340 makes the outlet tube seat 3 stably fixed in the air storage chamber 90 of the air storage seat 9, and at the same time, the top cover 92 is movably connected to the air storage seat 9; the recessed portion 34 in this embodiment The longitudinal depth of A is A, and the longitudinal depth A>0 makes the pressure storage space 35 in the outlet cylinder seat 3 smaller, so that the compressed air can quickly enter the air storage chamber 50 through the outlet holes 31 and 32. At this time, the output The maximum pressure value has also become relatively higher.

Another embodiment of the present invention can be shown in Figures 7 and 8, where the cylinder 2 and the air reservoir 9 are formed as an integral structure. The top of the air reservoir 9 has an upper opening 91. The aforementioned outlet tube seat 3 is The upper port 91 is inserted into the air storage chamber 90 of the air storage seat 9, and the positioning seat 36 of the air outlet tube seat 3 is seated on the top wall 21 of the cylinder 2, and a top cover 92 is used to abut against the air outlet tube seat 3 The top surface 340 enables the outlet tube seat 3 to be stably fixed in the air storage chamber 90 of the air storage seat 9, and at the same time the top cover 92 is movably combined with the air storage seat 9; the outlet tube seat 3 in this embodiment The top surface 340 does not have a recess, that is, the pressure storage space 35 in the outlet tube seat 3 is the maximum pressure storage space.

In summary, the present invention breaks through the design of only a single outlet hole on the intermediate wall between the cylinder 2 and the air storage seat 5 of the conventional air compressor. The present invention provides an air outlet tube seat 3 on the cylinder 2 , The outlet cylinder seat 3 is provided with a plurality of outlet holes 31, 32 on the outer cylinder wall 30, and an elastic membrane 4 is sleeved on the outer cylinder wall 30 of the outlet cylinder seat 3. The compressed air generated by the air compressor can be produced by these plural outlets The air holes 31 and 32 push the elastic membrane 4 into the air storage chamber 50 of the air storage seat 5. The quick closing feature of the elastic membrane 4 allows the compressed air volume per unit time to enter the air storage chamber 50 of the air storage seat 5 to increase greatly, so that The compressed air can quickly enter the air storage chamber 50 through the air outlet holes 31 and 32, so that the operation of the piston body 14 is smoother and the pumping efficiency is improved. The present invention is obviously advanced and practical.

(11): Machine board

(12): Motor

(13): Gear

(14): Piston body

(2): Cylinder

(21): Top wall

(210): positioning slot

(22): Circulation port

(23): Long side panel

(231): Inlay

(232): containment slot

(3): Punching bag seat

(30): Outer cylinder wall

(31)(32): Vent

(33): Ring groove

(34): Depressed part

(340): Top face

(35): Pressure storage space

(36): Positioning seat

(360): Outer ring groove

(37): Sealing ring

(4): Elastic film

(41): Convex Ring Wall

(5): Air storage seat

(50): Air storage chamber

(51): Opening

(52)(53)(54)(55): Manifold

(56): Flat side panel

(561): Panel

(562): Tolerance

(6): Pressure gauge

(7): Pressure relief valve

(8): Safety valve

(9): Air storage seat

(90): Air storage chamber

(91): Shangtongkou

(92): Top cover

The first figure: is a three-dimensional exploded view of the air compressor of the present invention. Figure 2: is a partial cross-sectional view of the air compressor of the present invention. The third figure: is a partial cross-sectional view of an elastic film sleeved on the outer cylinder wall of the outlet cylinder seat of the present invention. The fourth figure: the compressed air generated by the air compressor of the present invention moves through a plurality of vent holes to move the elastic film into the air storage chamber of the air storage seat. Figure 5: is another embodiment of the present invention. Figure 6: A partial cross-sectional view of Figure 5. Figure 7: is another embodiment of the present invention. Figure 8: A partial cross-sectional view of Figure 7.

(11): Machine board

(12): Motor

(13): Gear

(14): Piston body

(2): Cylinder

(21): Top wall

(210): positioning slot

(22): Circulation port

(23): Long side panel

(231): Inlay

(232): containment slot

(3): Punching bag seat

(30): Outer cylinder wall

(31)(32): Vent

(33): Ring groove

(34): Depressed part

(340): Top face

(36): Positioning seat

(360): Outer ring groove

(37): Sealing ring

(4): Elastic film

(41): Convex Ring Wall

(5): Air storage seat

(51): Opening

(52)(53)(54)(55): Manifold

(56): Flat side panel

(561): Panel

(562): Tolerance

(6): Pressure gauge

(7): Pressure relief valve

(8): Safety valve

Claims (9)

An improved structure of the air outlet of the cylinder of an air compressor. The air compressor has a plate for fixing the motor and a cylinder for the operation of the piston body. One end of the cylinder has an opening for the piston body to extend into, and the other end is It has a top wall on which there is an outlet tube seat. The outlet tube seat and the top wall of the cylinder are designed as a separate assembly and combination. The piston body can reciprocate in the cylinder through the motor drive gear. Compressed air is characterized in that: the bottom of the outlet cylinder seat is provided with a positioning seat, an outer ring groove is provided on the outer peripheral wall of the positioning seat, and the outer ring groove is sleeved with a sealing ring; the compressed air can pass through the circulation port provided on the top wall Into the outlet tube seat, the outer tube wall of the outlet tube seat is provided with a plurality of air outlet holes, and an elastic film is sleeved on the outer tube wall of the outlet tube seat. The compressed air generated by the air compressor can enter by pushing the elastic film through the plurality of air outlet holes The gas storage chamber of the gas holder. As described in item 1 of the scope of patent application, the air outlet structure of the air compressor is improved, wherein the air outlet tube seat with the sealing ring is placed in the positioning groove provided on the top wall of the cylinder by the positioning seat. As described in item 1 of the scope of the patent application, the air outlet structure of the air compressor is improved, wherein the plurality of air outlet holes have the same or different diameters. As described in item 1 of the scope of patent application, the air outlet structure of the air compressor is improved, wherein at least one ring groove is provided on the outer wall of the air outlet tube seat, and at least one convex ring wall is provided on the inner surface of one end of the elastic film, It can be clamped and fixed to the ring groove of the outer wall of the outlet tube seat to prevent the elastic film from slipping off the outer tube wall of the outlet tube seat, and the other end of the elastic film can close the aforementioned air outlet hole. As described in item 4 of the scope of patent application, the air outlet structure of the air compressor is improved, wherein at least one recess is provided on the top surface of the air outlet tube seat, which can use the at least one recess to change the pressure storage space to change The compression ratio can reach a reasonably controlled high pressure The force value, when the longitudinal depth of the recess is A, and the longitudinal depth A>0, the pressure storage space in the outlet cylinder seat becomes smaller, so that the compressed air can quickly enter the air storage chamber through the outlet hole, and the output at this time The maximum pressure value has also become relatively higher. As described in item 4 of the scope of patent application, the air outlet structure of the air compressor is improved. Among them, a long side plate extends horizontally outward on both sides of the cylinder before and after the cylinder is approximately close to the top wall. The end extends upwards with two corresponding and inverted L-shaped insert clamp bodies, which form a containing groove between the insert clamp body and the long side plate; a cylindrical gas holder with an opening and a gas chamber at one end, on the gas holder It is provided with a plurality of manifolds communicating with the air storage seat. The opening of the air storage seat extends around a flat side plate of appropriate thickness, and an L-shaped panel is provided on each of the two opposite flat side plates. A container is formed between the panel and the flat side plate. By rotating the air storage seat, the flat side panel of the air seat can quickly enter the receiving groove of the insert clamp body, and the long side panel of the cylinder is accommodated in the panel In the accommodating tank, the air storage seat is very firmly combined with the cylinder, the air storage seat and the cylinder, etc., can be assembled or disassembled movably, and the air storage seat can abut against the top surface of the outlet cylinder seat. The outlet tube seat is stably fixed in the air storage chamber of the air storage seat. As described in item 6 of the scope of patent application, the air compressor cylinder air outlet structure is improved, wherein the air storage seat is provided with the aforementioned multiple air outlet manifolds, and one of the manifolds can be used for pneumatic tires that can be quickly engaged with a hook For flexible hoses, another manifold can be quickly inserted into a pressure gauge, and multiple manifolds can be equipped with a pressure relief valve and a safety valve. As described in item 4 of the scope of patent application, the air outlet structure of the air compressor is improved, wherein the cylinder and the air reservoir are integrally formed, the top of the air reservoir has an upper opening, and the air outlet seat is made of The upper port is placed in the air storage chamber of the air storage seat, and the positioning seat of the air outlet tube seat is seated on the top wall of the cylinder, and then the air outlet tube seat is stably fixed by a top cover against the top surface of the air outlet tube seat In the air storage chamber of the air storage seat, and at the same time the top cover is The movable type is combined with the air storage seat. As described in item 4 of the scope of patent application, the air outlet structure of the air compressor is improved, wherein the top surface of the outlet tube seat does not have a recess, so that the pressure storage space in the outlet tube seat is the maximum pressure storage space.

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