KR102313847B1 - Manifold - Google Patents

Abstract

The present invention relates to a manifold, and in the present invention, a body having a first accommodating space formed on a side surface in the rear direction and a second accommodating space formed on a side surface in the front direction, and to cover the first accommodating space It is installed and has four inlet holes (T1I, T2I, T3I, T4I) connected to the inlet pipe of each tire (T1, T2, T3, T4) and air hose, and an inlet hole (TAI) through which air is introduced from the outside atmosphere. And, the first accommodating space 245 is installed to cover the intake side cover portion provided with one water outlet hole (TO) for withdrawing the air stored in the outside (the first air tank), and the second accommodating space, Four water outlet holes (T1O, T2O, T3O, T4O) connected to the water outlet pipe of each tire (T1, T2, T3, T4) and the air hose, and the water outlet hole (TAO) that discharges air to the outside atmosphere; A manifold having a water outlet side cover provided with one inlet hole (TI) for introducing air supplied from the second accommodation space is presented.

Description

Manifold {MANIFOLD}

The present invention relates to a manifold, and more particularly, to a manifold constituting a tire pressure regulating device known as a Central Tire Inflation System (CTIS), and to a manifold in which air injection and exhaust are smoothly performed.

If the vehicle is continuously operated, it is necessary to check the tire pressure every day, and even in the case of general vehicle operation, it is important to check the condition of the tires by measuring the air pressure at least once a month and to maintain the proper tire pressure. do. However, in the process of checking the tire air pressure as described above, the general user presses the tire with their hand or presses the tire with their foot to roughly determine whether the tire air pressure is appropriate. There was a problem in that it was difficult to know the state of the air pressure and whether it was appropriate, and for this reason, most maintenance shops had to go through the cumbersome process of measuring the air pressure of the tire and replenishing it.

1 is an embodiment of a conventional tire pressure regulating device. The tire pressure regulating device is generally referred to as a Central Tire Inflation Systems (CTIS) or CTI, hereinafter referred to as a 'CTIS' or a 'tire pressure regulating device'. CTIS allows remote control of one or more tire inflation pressures using a pressure fluid source (usually a vehicle air brake compressor or storage tank) typically mounted within the vehicle while the vehicle is stationary and/or driving. A device that allows the driver to remotely, manually or automatically change or maintain the pressure of one or more tires in the air system of a vehicle (usually a truck) when present and, in the case of advanced specifications, when in motion. In FIG. 1 , a dotted line between the control unit 120 , the air compressor 110 , and the manifold 140 shows a control signal. CTIS includes air compressor 110, air tank 150, speed sensing unit 130, control unit 120, manifold 140, wheel valves 100a to 100d, front air distribution ports 160a, rear wheels It consists of an air distribution port 160b, a display device 170, and an input device 180. An air hose is used between the air compressor 110, the air tank 150, the manifold 140, the wheel valves 100a to 100d, the front air distribution port 160a, and the rear wheel air distribution port 160b. Connected.

2 is a perspective view, a cross-sectional view, and a cross-sectional view of a male screw showing the shape of an air flow path of a manifold used in a conventional tire pressure regulator. In FIG. 2, (a) is a perspective view of a manifold, and (b) is a cross-sectional view showing an internal air flow path of the manifold. The conventional manifold has a main distribution hole formed so as to cross in the horizontal direction of FIG. is provided, an air inlet 51 connected to the air tank to receive air is formed on the front side, and a shut off outlet 55 and a decompression outlet 57 are provided on the rear surface. However, in the case of the manifold 140 having a flow path having a shape as shown in FIGS. 2 (a) and (b), the air injected from the air inlet 51 passes through the main distribution hole as indicated by the reference symbol 100 in the drawing. It forms a flow through which air is injected as it collides with the opposite pipe wall to be formed. As such, the opposite pipe wall forming the main distribution hole interfered with the flow of air injected from the air tank 150, thereby reducing the injection speed. In addition, since the diameter of the main distribution hole formed in the manifold 140 is uniformly provided, the air injected into the main distribution hole of the manifold 140 through the air tank 150 is supplied to the front wheel air outlet 53 and the rear wheel air outlet 59 ), the blocking outlet 55 or the decompression outlet 57 must be discharged from the air tank 150, so the front wheel air outlet 53, the rear wheel air outlet 59, the blocking outlet 55 or the decompression outlet As the flow path up to (57) becomes longer, there is a problem in that pressure loss occurs, making it difficult to pressurize or depressurize.

Finally, male screws are respectively fastened to the air inlet 51, the front wheel air outlet 53, the rear wheel air outlet 59, the blocking outlet 55 and the decompression outlet 57 of the manifold 140, respectively. It has a configuration in which other piping is installed on the outside of the male thread or directly connected to the solenoid valve. At this time, the male screw had the inconvenience of using a screw provided to have an orifice shape on the inside in order to form an appropriate air injection pressure or discharge pressure. 2 (c) shows a cross-sectional view of a male screw installed to be inserted into the air inlet 51, as shown in the figure, it can be seen that an orifice shape is provided on the inner surface of the male screw 126, and having such an orifice shape Air collides with the stepped surface, which causes inflow and outflow of air, and the price of the male screw having an orifice-shaped inner diameter is higher than that of the male screw 126 having the same inner diameter, resulting in an increase in cost. In addition, the conventional manifold has a problem in that it is difficult to attach it to a vehicle because it is bulky and heavy.

Patent Document 1: U.S. Patent No. 6,083,205 (registered on July 4, 2000)

The present invention is to solve the above problems, minimizes a structure that prevents the air flow so that the air injected from the air tank is smoothly introduced into the interior, and includes a storage for storing air in a constant volume inside the body, , An object of the present invention is to provide a manifold provided in a shape in which air flows smoothly through a plurality of air outlets provided in the manifold.

Another object of the present invention is to provide a manifold having an integrated structure that simultaneously allows air to be drawn from one tire and introduced into the other tire.

The above object of the present invention is connected to the air inlet of each tire (T1, T2, T3, T4), on the output side, a plurality of having an inlet pipe through which air is introduced into each tire and an outlet pipe through which the air stored in each tire is discharged. A manifold having one branch pipe and used to inject or withdraw air into or out of each tire through a plurality of branch pipes, the first body part having a polyhedral shape and having a first accommodating space formed in the inward direction from the first side And, the intake side cover portion that covers the first accommodating space exposed on the first side so as to be sealed, and each of the tires (T1, T2, T3, T4) connected to the plurality of branch pipes and each of the first air hoses Four inlet holes (T1I, T2I, T3I, T4I) that connect the first accommodating space through A first manifold having one water outlet hole (TO) for drawing out air stored in the space, a second body portion having a polyhedral shape and a second accommodating space formed inwardly from the second side, and the second side The second accommodation through the water outlet side cover part that covers the second accommodation space exposed to the airtight seal, the water outlet pipe of a plurality of branch pipes connected to each tire (T1, T2, T3, T4), and each third air hose Four water outlet holes (T1O, T2O, T3O, T4O) connecting the spaces, an outlet hole (TAO) connecting the outside atmosphere and the second accommodation space through the fourth air hose, and air from the outside to the second accommodation space It can be achieved by a manifold, characterized in that it includes a second manifold having one inlet hole (TI) for introducing the.

Preferably, the first body portion and the second body portion are formed of a polygonal integral body portion formed to be connected to each other, and the first side and the second side are preferably side surfaces spaced apart from each other in the integral body portion.

The manifold according to the present invention has the advantage of being able to provide one manifold for air inlet and air outlet. When provided as an integral piece in this way, there are advantages in that the number of parts can be reduced and installation space can be saved.

In addition, the manifold according to the present invention has an air reservoir having a sufficient capacity on the inlet side and the outlet side, respectively, despite being manufactured in one piece, so that the amount of air is increased compared to the conventional manifold, and the amount of air is increased in one direction and at the same time in the other direction. can be excreted, thus enhancing the Bernoulli effect, thus increasing the rate of infusion or excretion.

1 is a conceptual diagram of a conventional tire pressure regulating device.
2 is a perspective view, a cross-sectional view, and a cross-sectional view of a male screw showing the shape of an air flow path of a manifold used in a conventional tire pressure regulator;
Figure 3 is a configuration diagram of a pneumatic vehicle attitude control device that provides a function of adjusting the vehicle attitude together with the CTIS function.
4 is an exploded perspective view of a manifold according to an embodiment of the present invention;
5 is a combined perspective view of a manifold according to an embodiment according to the present invention;
6 is a partial perspective view and a partially enlarged view in a planar direction of a manifold of an embodiment according to the present invention;

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail. This is not intended to limit the present invention to a specific embodiment, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a configuration diagram of a pneumatic vehicle attitude control device that provides a function of adjusting a vehicle attitude along with a CTIS function. Front driver side tire (hereinafter referred to as 'Tire T1'), front passenger side tire (hereinafter referred to as 'Tire T2'), rear wheel driver side tire (hereinafter referred to as 'Tire T3'), and rear passenger side tire (hereinafter referred to as 'tire T4') is provided with each air inlet (not shown). Branch pipes b1, b2, b3, and b4 connected to the air inlet of each tire and air are provided under the vehicle. On the output side of each branch pipe (b1, b2, b3, b4), the inlet pipe (T1I, T2I, T3I, T4I) through which air flows into the tire and the water outlet pipe (T1O, T2O, T3O) through which the air stored in the tire flows out , T4O) is provided.

Each inlet pipe (T1I, T2I, T3I, T4I) provided in the branch pipe (b1, b2, b3, b4) is provided in the first manifold 241 and corresponding to each inlet hole (T1I, T2I, T3I) , T4I) and air hose, and between each inlet pipe (T1I, T2I, T3I, T4I) and each corresponding inlet hole (T1I, T2I, T3I, T4I), the air flow can be shielded with an electrical signal. possible valves (eg, solenoid valves) are provided. These valves are used in place of wheel valves because they provide the functions of the wheel valves 100a, 100b, 100c, and 100d shown in FIG. 1 .

The first manifold 241 is provided with five inlet holes (T1I, T2I, T3I, T4I and TAI) and one outlet hole (TO). The remaining inlet hole TAI, which is not described, is a hole for introducing atmospheric air into the first receiving space 245 of the first manifold 241, and the inlet hole TAI has a one-way check for controlling the inflow of air in the atmosphere. A valve is provided. The water outlet hole TO provided in the first manifold 241 is connected to the first air tank 210 through an air hose, and air inflow is blocked between the water outlet hole TO and the first air tank 210 . A one-way check valve is provided. A one-way check valve is a mechanically operated valve designed to allow air to flow in only one direction. The plurality of one-way check valves shown in FIG. 3 are mechanically operated so that air can flow only in the direction indicated by the arrow on the drawing.

Each of the water outlet pipes T10, T2O, T3O, and T4O provided in the branch pipes b1, b2, b3, and b4 has respective corresponding water outlet holes T10, T2O, T3O provided in the second manifold 243. , T4O) and air hose, and between each water outlet pipe (T1O, T2O, T3O, T4O) and each corresponding water outlet hole (T1O, T2O, T3O, T4O), the air flow is controlled by an electrical control signal. A shutoff valve (eg a solenoid valve) is provided.

The second manifold 243 is provided with five water outlet holes T10, T2O, T3O, T4O and TAO and one inlet hole TI. The remaining water outlet holes (TAO), which are not described, are holes for discharging the air stored in the second accommodation space 247 of the second manifold 243 to the atmosphere, and can also block the inflow of air into the water outlet holes TAO. A one-way check valve is provided. The acquisition hole TI provided in the second manifold 243 is connected to the second air tank 230 through an air hose, and the air inflow is blocked between the acquisition hole TI and the second air tank 230 . A one-way check valve is provided.

The first air pump 220 is a pump for withdrawing the stored air and moving it to the second air tank 230 . By the first air pump 220 , the first air tank 210 maintains a low pressure state close to almost 0 atm. A one-way check valve capable of blocking the air flow in one direction is provided between the first air tank 210 and the first air pump 220 . In addition, a bypass 213 for directly connecting between the first air tank 210 and the second air tank 230 with an air hose is provided, and the first air tank 210 and the second air tank 230 are connected to each other. A one-way check valve is provided in the bypass 213 directly connected thereto. The second air pump 240 is a pump that sucks air in the atmosphere (ATM) and provides compressed air to the second air tank 230 , and a one-way check valve is provided between the second air tank 230 and the air tank 230 . .

The vehicle is provided with a rolling sensor 250 for detecting an inclined state in the left and right directions and a pitching sensor 260 for detecting an inclined state in the front and rear directions.

In FIG. 3, the first manifold 241 and the second manifold 243 are illustrated as being formed as one integrated structure 240, but since they each provide separate functions, they can be configured as physically separate body parts. of course there is

A case in which the manifold is composed of physically separated first and second manifolds will be described. The first manifold 241 has a polyhedral shape and a first body portion having a first accommodating space formed in the inward direction from the first side, and the acquisition side cover that covers the first accommodating space exposed to the first side to be sealed The four inlet holes (T1I, T2I, T1I, T2I, T3I, T4I), an intake hole (TAI) connecting the external atmosphere and the first accommodation space through the second air hose, and one water outlet hole (TO) for drawing out the air stored in the first accommodation space. do. Similarly, the second manifold 243 has a polyhedral shape and includes a second body portion having a second accommodating space formed inwardly from the second side of the material, and the second accommodating space exposed on the second side so as to be sealed. The water outlet side cover part, the water outlet pipes of a plurality of branch pipes connected to each tire (T1, T2, T3, T4), and four water outlet holes (T10, T10, T2O, T3O, T4O), an outlet hole (TAO) connecting the external atmosphere and the second accommodation space through the fourth air hose, and one inlet hole (TI) for introducing air into the second accommodation space from the outside be configured to have .

In the remaining configuration, the control unit 120 for controlling the operation of the plurality of solenoid valves and the air pump is provided, and a speed sensing unit 130 for additionally sensing the vehicle speed may be added. The second air pump 240 is also additional and is not an essential component constituting the pneumatic vehicle attitude control device of an embodiment according to the present invention, so it may be omitted. However, in order to provide the CTIS function using the pneumatic vehicle attitude control device according to the present invention, the second air pump 240 must be provided. Also, although not shown, an air pressure sensor for measuring the air pressure of each tire is installed, respectively, a display device (not shown) for displaying the tire pressure state and operation state to the vehicle driver, and an input device for receiving an input related to operation, etc. from the vehicle driver (US city) is provided.

When designing the pneumatic vehicle attitude control device, the capacity of the first air tank 210 should be designed to be smaller than the capacity of the second air tank 230 . In more detail, the capacity of the first air tank 210 should be formed to be smaller than the pumping amount per minute (170 liters/minute) of the first air pump 220 , preferably, the capacity of the first air tank 210 . is smaller than 1/4 of the pumping amount per minute (170 liters/minute) of the first air pump 220 . In some cases, it is necessary to simultaneously withdraw air from the four tires, and even in this case, it is preferable that the first air tank 210 always maintains an empty vacuum state.

The capacity of the second air tank 230 should be formed to be smaller than the discharge amount per minute (170 liters/minute) of the second air pump 240, preferably, the discharge amount per minute of the second air pump 240 (170 liters/minute). min), it is better to form it smaller than 1/4. When the capacity of the second air tank 230 is designed in this way, the second air tank 230 can be formed at a high pressure by using the second air pump 240 quickly. For example, if the second air tank 230 is designed to have a capacity of 200 liters and the second air pump 240 is designed to have a discharge rate of 170 liters per minute, the pressure of the second air tank 230 is atmospheric pressure only after 1 minute has passed. The pressure can be raised to higher pressures. On the contrary, when the second air tank 230 is designed to have a capacity of 20 liters and the second air pump 240 is designed to have a discharge rate of 170 liters per minute, arithmetic, the second air tank 230 from the time exceeding 0.11 seconds. ) can be increased to an air pressure above atmospheric pressure. In addition, assuming that air is simultaneously injected into four tires, the capacity of the second air tank 230 is formed to be smaller than 1/4 of the discharge rate per minute (170 liters/minute) of the second air pump 240. it's good

In addition, since the second air tank 230 is used for injecting air into the tire, it should have a capacity of a certain size or more in a high pressure state in order to reduce the injection time. Even when the second air tank 230 satisfies the high pressure characteristic but has a small capacity, it takes a lot of time to inject sufficient air into the tire. For a similar reason, although the capacity of the second air tank 230 is designed to be sufficiently large, it takes a lot of time to inject air into the tire even if the high pressure characteristic is not satisfied. In order to satisfy these characteristics, the capacity of the second air tank 230 should be smaller than 1/4 of the discharge amount per minute (170 liters/minute) of the second air pump 240, and the capacity of the first air tank 210 It should be made larger than that.

Here, the pumping amount per minute and the discharge amount per minute of the air pump are merely described separately as two functional expressions for convenience of explanation, and both are used to describe the same performance.

The manifold 240 proposed in the present invention is one of the components used in the pneumatic vehicle attitude control device shown in FIG. 3 . 4 is an exploded perspective view of a manifold of an embodiment according to the present invention, FIG. 5 is a coupled perspective view of a manifold of an embodiment according to the present invention, and FIG. 6 is a part in the planar direction of the manifold of an embodiment according to the present invention It is a perspective view. Hereinafter, a manifold according to an embodiment according to the present invention will be described with reference to FIGS. 4 to 6 .

The manifold 240 is composed of a body portion 520 , an acquisition-side cover portion 503 , an exit-side cover portion 501 , a first mounting member 505 and a second mounting member 507 . The body portion 520 is formed of aluminum, and is formed on a first accommodating space formed on a side surface in the rear direction (surface coupled to the intake side cover part), and a side surface in the front direction (surface coupled to the water outlet side cover part). It is formed to have a second accommodating space 247 . Of course, the first accommodating space and the second accommodating space 247 do not communicate with each other and are configured to be separated from each other by the body portion 520 (see FIG. 3 ). The first accommodating space 245 is a space for temporarily storing the air sucked from the tires T1 , T2 , T3 , and T4 , and then withdrawing it to the outside through the water outlet hole TO. The first accommodating space 245 is formed to a predetermined depth inward from the side in the rear direction, and the outer edge of the rim is formed to be rounded inward from the surface coupled to the acquisition side cover, so that each tire (T1, T2, T3, T4) Alternatively, it was formed in a shape to minimize the vortex caused by the air sucked from the atmosphere.

The acquisition side cover part 503 has four acquisition holes (T1I, T2I, T3I, T4I) connected to the inlet pipe and the air hose of each tire (T1, T2, T3, T4) are installed, and also the acquisition side cover It can be seen that the unit 503 is further provided with an acquisition hole TAI through which air is introduced from the external atmosphere. For example, the shape of the T2I hole is as shown in Fig. 6(b), the inlet holes (T1I, T2I, T3I, T4I, TAI) for receiving air from the outside into the inner first accommodating space 245 are external and The area of the contacting side (a1) is formed wider than the area of the side (a2) in contact with the first accommodating space 245, and the inner diameter of each inlet hole has a shape gradually narrowing from the outside to the inside (a, orifice) area) can be seen. The acquisition-side cover part 503 is provided with one water outlet hole (TO) for drawing out the air stored in the first accommodation space 245 to the outside (the first air tank). The water outlet hole (TO) has a different shape from the inlet holes (T1I, T2I, T3I, T4I), and the area on the side in contact with the outside is formed narrower than the area in contact with the first receiving space 245 rhk, and the inner diameter of the water outlet hole is inside It can be seen that it has an intermediate portion (orifice region) having a shape gradually narrowing in the outward direction.

Four water outlet holes (T10, T2O, T3O, T4O) connected to the water outlet pipe of each tire (T1, T2, T3, T4) and the air hose are installed in the water outlet cover part 501, and also the water outlet cover It can be seen that the unit 501 is further provided with a water outlet hole TAO for discharging air from the outside atmosphere. For example, the shape of the T2O hole is, as shown in FIG. 6(c), the water outlet holes (T10, T2O, T3O, T4O, TAO) for discharging air from the outside to the inner second accommodation space 247 are connected to the outside. The area of the contacting side (c1) is formed to be narrower than the area of the side (c2) in contact with the second receiving space 247, and the inner diameter of each water outlet hole has a shape (c) that gradually narrows from the inside to the outside. It can be seen that it is available. The water outlet side cover part 501 is provided with one inlet hole TI for receiving the air stored in the second receiving space 247 from the outside (the second air tank). The inlet hole TI has a shape different from that of the water outlet holes T10, T2O, T3O, and T4O, and the area on the side in contact with the outside is formed wider than the area in contact with the second receiving space 247, and the inner diameter of the inlet hole is outside It can be seen that it has an intermediate portion having a shape gradually narrowing in the inward direction.

A first mounting member 505 and a second mounting member 507 for coupling with a vehicle are respectively provided on left and right side surfaces of the manifold 240 . A first gasket 523 for improving the airtightness may be provided between the body portion 520 and the acquisition side cover portion 503, and also between the body portion 520 and the water outlet side cover portion 501 for airtightness. A second gasket 521 to improve it may be provided.

The body portion 520 and the intake side cover portion 503 of the manifold, the body portion 520 and the water outlet side cover portion 501 of the manifold were fastened with a plurality of screws. Similarly, the first mounting member 505 and the second mounting member 507 are also screwed to the body 520 of the manifold.

In describing the embodiments of the present specification, when it is determined that a detailed description of a related known configuration or function may obscure the gist of the present specification, the detailed description thereof is omitted.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is referred to as being “connected” or “connected” to another component, it is understood that the other component may be directly connected or connected to the other component, but other components may exist in between. it should be On the other hand, when it is mentioned that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

In addition, the components shown in the embodiment of the present invention are shown independently to represent different characteristic functions, and it does not mean that each component is composed of separate hardware or a single software component. That is, each component is listed as each component for convenience of description, and at least two components of each component are combined to form one component, or one component can be divided into a plurality of components to perform a function, and each Integrated embodiments and separate embodiments of components are also included in the scope of the present invention without departing from the essence of the present invention.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

51: air inlet 53: front wheel air outlet
55: outlet for shut off 57: outlet for pressure reduction
59: rear wheel air outlet 100a to 100d: wheel valve
110: air pump 126: male screw
120: control unit 130: speed sensing unit
140, 240: manifold 150: air tank
160a: front wheel air outlet 160b: rear wheel air outlet
170: display device 180: input device
210: first air tank 220: first air pump
230: second air tank 240: second air pump
250: rolling sensor 260: pitching sensor
241: first manifold 243: second manifold
245: first accommodating space 247: second accommodating space
250: rolling sensor 260: pitching sensor
b1, b2, b3, b4: branch pipe T1, T2, T3, T4: tire
T1I, T2I, T3I, T4I: inlet pipe, inlet hole
T1O, T2O, T3O, T4O: water outlet pipe, water outlet hole

Claims (7)

A plurality of branch pipes connected to the air inlet of each tire (T1, T2, T3, T4) and having an inlet pipe through which air flows into each tire and an outlet pipe through which the air stored in each tire flows out on the output side A manifold used for injecting or withdrawing air to each tire through the plurality of branch pipes,
A polyhedral shape, and a first body portion having a first accommodating space formed in an inward direction from the first side, and an acquisition-side cover portion covering the first accommodating space exposed on the first side to be sealed, each tire ( T1, T2, T3, T4) and four inlet holes (T1I, T2I, T3I, T4I) connecting the first receiving space through the inlet pipe of a plurality of branch pipes and each first air hose; A first manifold having an inflow hole (TAI) connecting the external atmosphere and the first accommodating space through a second air hose, and one outlet hole (TO) for drawing out the air stored in the first accommodating space; ,
A second body portion having a polyhedral shape and having a second accommodating space formed in an inward direction from a second side surface, a water outlet side cover portion for sealingly covering the second accommodating space exposed on the second side, and each tire ( Four water outlet holes (T10, T2O, T3O, T4O) connecting the second accommodation space through the outlet pipe of a plurality of branch pipes connected to T1, T2, T3, T4 and each third air hose; A second manifold having an outlet hole (TAO) connecting the external atmosphere and the second accommodating space through a fourth air hose, and one inlet hole (TI) for introducing air into the second accommodating space from the outside. A manifold comprising a.
According to claim 1,
The first body part and the second body part are formed as a polygonal integral body part that is formed to be connected to each other, and the first side and the second side surface are side surfaces spaced apart from each other in the integral body part.
3. The method of claim 1 or 2,
The first accommodating space formed in the first manifold has a shape that is rounded inward from the first side,
The second accommodating space formed in the second manifold has a shape that is rounded inward from the second side surface.
3. The method of claim 1 or 2,
The four acquisition holes (T1I, T2I, T3I, T4I), the acquisition hole (TAI), and the water outlet hole (TO) is a manifold, characterized in that provided in the acquisition side cover.
3. The method of claim 1 or 2,
The four water outlet holes (T10, T2O, T3O, T4O), the water outlet hole (TAO), and the inlet hole (TI) are manifold, characterized in that provided in the water outlet side cover.
3. The method of claim 1 or 2,
At least one of the acquisition holes formed in the acquisition side cover portion is formed with an area of the side (a1) in contact with the outside is wider than the area of the side (a2) in contact with the first receiving space, the inner diameter of the acquisition hole is from the outside to the inside A manifold, characterized in that it is provided with an intermediate portion (a) having a shape gradually narrowing in the direction.
3. The method of claim 1 or 2,
At least one of the water outlet holes formed in the water outlet cover part has an area on a side c1 in contact with the outside is smaller than an area on a side c2 in contact with the second accommodation space, and the inner diameter of the water outlet hole is from the outside to the inside. A manifold, characterized in that it is provided with an intermediate portion (c) having a shape that gradually widens in the direction.

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