CN116548776A - Air pressure distributor - Google Patents

Abstract

An air pressure distributor comprises an air pressure dividing device and a driving device. The air pressure split device comprises a main body and a cover body, wherein the main body is provided with a first air pressure conversion cavity, a leakage communication cavity and a plurality of air pressure communication cavities. The first air pressure conversion cavity is communicated with at least one air pressure input port, the air release communication cavity is communicated with an air release recovery port, and the air pressure output ports are respectively communicated with the corresponding air pressure communication cavity and the air release recovery port; the cover body is covered on the main body, a second air pressure conversion cavity and a third air pressure conversion cavity are concavely arranged on one side surface facing the main body, and the second air pressure conversion cavity is communicated with the first air pressure conversion cavity; the driving device is connected to the air pressure dividing device and drives the cover body to rotate, and the second air pressure conversion cavity is communicated with at least one air pressure communication cavity through the rotation of the cover body, and one air pressure communication cavity is communicated with the air leakage communication cavity through the third air pressure conversion cavity. When one of the air pressure communication cavities is communicated with the air leakage communication cavity, air is leaked to the air leakage recovery port through the air pressure output port corresponding to the air pressure communication cavity.

Description

Air pressure distributor

Technical Field

The invention relates to the technical field of air pressure regulation, in particular to an air pressure distributor which is applied to air pressure supply of an air cushion bed and has an adjustable air pressure distribution state.

Background

With the progress of the age, people's demands for sleep quality become more important. Beds are a piece of living furniture indispensable in human life, and various uses and kinds of beds are also present in the life of people. Wherein, the air cushion bed is supported by a plurality of air cushions and is filled with air to support a human body, thereby generating a comfort level different from that of the prior spring bed.

In the prior art, the air cushion cylinder is inflated and filled with air by directly inputting and storing the air into the closed air cushion cylinder. However, under the above-mentioned structure, the air stored in the air cushion cylinder is often affected by humidity and human body temperature to generate pressure unevenness or damp condition of the air cushion cylinder, thereby affecting the comfort level of the user when lying down.

Therefore, in order to overcome the above-mentioned shortcomings, a micro-leakage air cushion bed is available on the market, and the non-closed air cushion cylinder is continuously inflated by the air pressure pump, so that the air can be circulated in the air cushion cylinder, and the air cushion cylinder is prevented from being influenced by humidity and human body temperature. However, because the air cushion cylinder is continuously positioned in the air leakage state and the body weight of the user is pressed and attached above the air cushion cylinder, the current micro air leakage air cushion bed can realize the air pressure input of the supporting air cushion cylinder by using a large air pressure pumping method with larger output efficiency.

Please refer to fig. 1, which is a schematic diagram illustrating a conventional micro air leakage air mattress. The micro air leakage air cushion bed is characterized in that air pressure input is respectively carried out on a plurality of independent air cylinders a of the air cushion bed A through an air pump C and a connecting pipe T. Because the inflator a is designed with a pressure relief orifice (not shown), the inflator C is continuously operated to supply gas to maintain the air pressure of the air bed a. When the human body P lies on the air bed a, each air cylinder supports a human body part having a different weight, for example: the back B is a core part for supporting the human body, and the supporting force provided by the back B is different from the supporting force provided by the heel H for supporting only the weight of the sole part of the human body. Whether a general air cushion bed or a micro air leakage air cushion bed, the function of adjusting the air pressure of each part of the human body lying on the air cushion bed body cannot be further performed. Thus, when the pressure of the air input into each air cylinder is the same, a user often feels comfortable when lying on the air cylinder, but another part feels too hard or too soft of the air cushion cylinder, so that the comfort of the product is reduced, and gaps are easily generated between the body of the user and the air cushion bed body, thereby causing injury to skeletal tendons.

Therefore, it is necessary to provide an air pressure dispenser to solve the above-mentioned problems by improving the existing air pressure pump and air cushion bed so that the air pressure dispenser can be used for air pressure distribution according to the body area in practice to improve the lying comfort of the air cushion bed.

Disclosure of Invention

In order to achieve the above object, the present invention provides an air pressure dispenser, comprising:

an air pressure shunt device, comprising:

the main body is provided with a first air pressure conversion cavity, a leakage communication cavity and a plurality of air pressure communication cavities, wherein the first air pressure conversion cavity is communicated with at least one air pressure input port, the leakage communication cavity is communicated with a leakage recovery port, and a plurality of air pressure output ports are respectively communicated with the corresponding air pressure communication cavity and the leakage recovery port; and

the cover body is covered on the main body, a second air pressure conversion cavity and a third air pressure conversion cavity are concavely arranged on one side surface facing the main body, and the second air pressure conversion cavity is communicated with the first air pressure conversion cavity; and

the driving device is connected with the air pressure dividing device and drives the cover body to rotate, and the second air pressure conversion cavity is communicated with at least one air pressure communication cavity through the rotation of the cover body, and one air pressure communication cavity is communicated with the air leakage communication cavity through the third air pressure conversion cavity;

when one of the air pressure communication cavities is communicated with the air leakage communication cavity, air is leaked to the air leakage recovery port through the air pressure output port corresponding to the air pressure communication cavity.

Further, the air pressure input port is connected with an air pressure sensor, the main body is further provided with an air leakage detection cavity, the cover body is provided with at least one pressure relief through hole, and the air pressure sensor detects air leakage pressure when the pressure relief through hole is communicated with the air leakage detection cavity.

The air pressure distributor further comprises a trigger switch, the trigger switch is provided with a switch element and a signal connecting piece, at least one protruding part protrudes from the peripheral wall of the cover body, the protruding part triggers the switch element through the rotation of the cover body, and a trigger signal is transmitted to an external control device through the signal connecting piece.

Further, there are three of the projections.

Further, the main body of the air pressure shunt device is formed with a trigger switch bearing bump, and the trigger switch is arranged on the trigger switch bearing bump.

Further, the driving device comprises a signal connection terminal, a plurality of positioning pieces and a buffer spring, wherein the signal connection terminal is used for being connected with the external control device, and the buffer spring is arranged between the driving device and the air pressure shunt device.

Further, the air pressure input port has two, and the air pressure output port has three.

Further, the number of the air pressure input ports is two, and the number of the air pressure output ports is four.

Further, the main body is formed with a through hole, and a driving shaft of the driving device passes through the through hole and is axially connected to an axial connection hole of the cover body.

Further, the driving shaft is provided with a bolt in a penetrating way, and the bolt is used for fixing the air pressure dividing device and the driving device.

The invention realizes the effect that different air pressure amounts can be output simultaneously by using only a single air source, thereby having respective air pressure saturation in the air cushion cylinders in different areas. Compared with the prior art that the gas pressure of each inflator is the same, the utility model is more comfortable for users and has remarkable industrial utilization.

Drawings

FIG. 1 is a schematic diagram of a conventional micro air leakage air cushion bed;

FIG. 2 is a schematic view of an air pressure dispenser according to a first embodiment of the invention;

FIG. 3 is an exploded view of a pneumatic dispenser according to a first embodiment of the present invention;

FIG. 4 is a schematic view of a main body of a first embodiment of the present invention at different viewing angles;

FIG. 5 is a schematic view of a cover at a viewing angle according to a first embodiment of the present invention;

FIGS. 6A-9B are schematic diagrams illustrating the operation of the air pressure dispenser according to the first embodiment of the invention;

FIG. 10 is a schematic view of a pneumatic dispenser according to a second embodiment of the present invention;

FIG. 11 is an exploded view of a pneumatic dispenser according to a second embodiment of the present invention; and

fig. 12 is a schematic view of a main body of a second embodiment of the present invention at different viewing angles.

[ symbolic description ]

A, air cushion bed

B, back

C, inflating pump

H heel of foot

P is the human body

T-connecting pipe

Inflator a

1 air pressure split device

11 main body

111 first air pressure conversion cavity

112, venting communication cavity

113 air pressure communication cavity

113a first air pressure communication cavity

113b second air pressure communication cavity

114 air pressure inlet

114a first air pressure input port

114b second pneumatic input port

115, leakage recovery port

116 air pressure outlet

116a first air pressure outlet

116b second pneumatic outlet

116c third air pressure outlet

117 detection cavity for leakage

118 through holes

119 trigger switch bearing bump

12 cover body

121 second air pressure conversion cavity

122 third air pressure conversion cavity

123. 123a pressure relief through hole

124. 124a, projection

125 shaft connecting hole

2 drive device

21 drive shaft

22 signal connection terminal

23 positioning piece

24 buffer spring

25 plug pin

3 trigger switch

31 switching element

32 signal connector

S: air pressure sensor

Detailed Description

The features, means, and specific functions and objects achieved by the present invention will be further understood by reference to the drawings, detailed description of the preferred embodiments, and the like.

The following description of the embodiments refers to the accompanying drawings, which illustrate embodiments of the invention that may be practiced. Directional terms, such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "horizontal", "vertical", etc., are merely referring to the directions of the attached drawings. The directional terminology is used for purposes of illustration and understanding of the invention and is not intended to be limiting of the invention.

Fig. 2 to 5 are schematic diagrams of an air pressure dispenser according to a first embodiment of the invention, an exploded schematic diagram of the air pressure dispenser, a schematic diagram of the main body 11 at different viewing angles, and a schematic diagram of the cover 12 at a viewing angle. The air pressure distributor is composed of an air pressure dividing device 1, a driving device 2 and a trigger switch 3.

Further, the air pressure dividing device 1 is composed of a main body 11 and a cover 12 covering the main body 11. In the first embodiment, the main body 11 is concavely provided with a first air pressure conversion chamber 111, a venting communication chamber 112, and two air pressure communication chambers 113. The first air pressure conversion chamber 111 is communicated with the two air pressure input ports 114, the air release communication chamber 112 is communicated with an air release recovery port 115, the air release recovery port 115 is arranged at one side far away from the two air pressure input ports 114, the three air pressure output ports 116 are respectively communicated with the corresponding two air pressure communication chambers 113 and the air release recovery port 115 (i.e. the first air pressure output port 116a is communicated with the first air pressure communication chamber 113a, the second air pressure output port 116b is communicated with the second air pressure communication chamber 113b, and the third air pressure output port 116c is communicated with the air release recovery port 115). Further, the two air pressure input ports 114 are connected to an air supply device (not shown) for delivering air into the air pressure splitting device 1 (specifically, into the first air pressure communication chamber 113) through the two air pressure input ports 114. The main body 11 further has a leakage detecting chamber 117, and the leakage detecting chamber 117 is in communication with the second air pressure input port 114b (may also be in communication with the first air pressure input port 114a in an embodiment). The cover 12 is in a circular shape, and has a protruding portion 124 protruding from its outer peripheral wall, and a second air pressure conversion chamber 121 and a third air pressure conversion chamber 122 are concavely disposed on a side of the cover 12 facing the main body 11, where the second air pressure conversion chamber 121 is in communication with the first air pressure conversion chamber 111. In the first embodiment, the air pressure input port is connected to the air pressure sensor S, the cover 12 is provided with two pressure release through holes 123, when the two pressure release through holes 123 are respectively communicated with the air release detecting cavity 117, the air pressure sensor S can detect the air release pressure, detect the pressure change of the body weight in the pressure release state, and determine the weight carried by the air cushion bed by recording and calculating the pressure release time, so as to automatically feedback and set the air pressure inflated in the air cylinder, and enable users with different body weights to obtain more comfortable experience of lying on the air cushion bed. It should be noted that, the three air pressure output ports 116 are air cylinders connected to the air cushion bed in this embodiment, so that air is transferred to the air cylinders through the three air pressure output ports 116 to inflate the air cylinders. The air pressure sensor S may be disposed on the control device PCB board, but is not limited thereto. The arrangement of the air pressure sensor S enables the control device to monitor the air pressure input state and the pressure value of the air pressure conversion cavity, and the air pressure pump is adjusted.

Further, the driving device 2 has a driving shaft 21, the main body 11 is formed with a through hole 118, and the driving shaft 21 passes through the through hole 118 to be pivotally connected to a shaft connection hole 125 of the cover 12, and drives the cover 12 to rotate. Through the rotation of the cover 12, the second air pressure conversion chamber 121 is connected to at least one of the air pressure communication chambers 113, and one of the air pressure communication chambers 113 is connected to the air release communication chamber 112 through the third air pressure conversion chamber 122. The driving device 2 has a signal connection terminal 22, a plurality of positioning members 23, and a buffer spring 24, wherein the signal connection terminal 22 is used for being connected to an external control device (not shown), and the buffer spring 24 is arranged between the driving device 2 and the air pressure dividing device 1, so as to buffer the impact generated by the driving device 2 and the air pressure dividing device 1 due to the operation, and prevent the impact from damaging the two devices due to long-term impact. In addition, the driving shaft 21 is provided with a pin 25, and the pin 25 is used for fixing the air pressure dividing device 1 and the driving device 2, i.e. preventing the driving shaft 21 from being separated from the through hole 118.

Further, the trigger switch 3 has a switch element 31 and a signal connection member 32, and the protrusion 124 of the cover 12 triggers the switch element 31 through the rotation of the cover 12, and transmits a trigger signal to an external control device through the signal connection member 32. Furthermore, the main body 11 of the air pressure diversion apparatus 1 is formed with a trigger switch carrying bump 119, and the trigger switch 3 is disposed on the trigger switch carrying bump 119. It should be noted that, by the arrangement of the trigger switch 3 and the protruding portion 124 of the cover 12, when the protruding portion 124 touches the trigger switch 3, the external control device can precisely know the operation state of the air pressure split module 1, and further adjust the time and frequency of rotation or stop of the air pressure split module through the driving module 2.

In the first embodiment, when the rotation angle of the cover 12 is defined as 0 degree (as shown in fig. 6A) or rotated clockwise, for example, 180 degrees (as shown in fig. 6B), the second air pressure conversion chamber 121 is communicated with all the first air pressure communication chamber 113a and all the second air pressure communication chamber 113B, and the air conveyed by the air supply device is inflated to the air cylinders of the air cushion bed sequentially through the air pressure input port 114, the first air pressure conversion chamber 111, the second air pressure conversion chamber 121, the two air pressure communication chambers 113 and the two air pressure output ports 116.

Further, when the cover 12 rotates clockwise, for example 22.5 degrees (as shown in fig. 7A) or 202.5 degrees (as shown in fig. 7B), the second air pressure conversion chamber 121 is connected to part of the first air pressure communication chamber 113a and part of the second air pressure communication chamber 113B, and the air leakage detection chamber 117 is connected to one of the two pressure release through holes 123, the air in the air cylinder will reduce the air charge amount and release air through the pressure release through holes 123, and the air pressure input port 114 connected to the air leakage detection chamber 117 can be connected to an air pressure sensor S, thereby detecting the air leakage pressure while releasing air, determining the weight carried by the air cushion bed by recording and calculating the pressure release time, so as to automatically feedback the air pressure inside the inflated air cylinder through an external control device (not shown), and enable a user with different weight to lie on the air cushion massage bed comfortably.

Further, when the cover 12 rotates clockwise by, for example, 67.5 degrees (as shown in fig. 8A) or 247.5 degrees (as shown in fig. 8B), the third air pressure conversion chamber 122 communicates the first air pressure communication chamber 113a or the second air pressure communication chamber 113B with the air release communication chamber 112, and the air pressure communication chamber 113 communicating with the air release communication chamber 112 is communicated with the air release recovery port 115. Further, when the cover 12 rotates 67.5 ° clockwise to allow the first air pressure communication cavity 113a to communicate with the air release communication cavity 112, the air in the air cylinder connected to the first air pressure communication cavity 113a flows into the third air pressure output port 116c through the air release recovery port 115, so that the released air can be recovered and supplied to the air cylinder in communication with the air release recovery port 115, so that the air supply device can reduce the pressure of the output efficiency thereof and reduce the probability of damage thereof. At this time, the second air pressure conversion chamber 121 communicates with the second air pressure communication chamber 113b to inflate the air to the air tube in communication with the second air pressure output port 116 b. Further, when the cover 12 rotates 247.5 degrees clockwise to allow the third air pressure conversion chamber 122 to communicate the second air pressure communication chamber 113b with the air release communication chamber 112, the air in the air cylinder connected to the second air pressure communication chamber 113b flows into the third air pressure output port 116c through the air release recovery port 115, so that the released air can be recovered and supplied to the air cylinder communicating with the air release recovery port 115, and the air supply device also has the effect of reducing the pressure of the output efficiency of the air supply device. At this time, the second air pressure conversion chamber 121 communicates with the first air pressure communication chamber 113a to inflate the air to the air cylinder in communication with the first air pressure output port 116 a.

Further, when the cover 12 is rotated clockwise, for example, 135 degrees (as shown in fig. 9A) or 315 degrees (as shown in fig. 9B), the second air pressure conversion chamber 121 is communicated with the first air pressure communication chamber 113a or the second air pressure communication chamber 113B, and air is inflated to an air cylinder communicated with the first air pressure output port 116a or the second air pressure output port 116B. Further, when the cover 12 is rotated clockwise by 135 degrees, for example, the second air pressure conversion chamber 121 is connected to the first air pressure communication chamber 113a to charge air to the air cylinder connected to the first air pressure output port 116a (the second air pressure output port 116b is in a closed state). Further, when the cover 12 rotates clockwise by 315 degrees, for example, the second air pressure conversion chamber 121 is connected to the second air pressure communication chamber 113b to charge air to the air cylinder connected to the second air pressure output port 116b (the first air pressure output port 116a is in a closed state). The rotation may be reverse clock rotation, and is not limited thereto.

Fig. 10 to 12 are schematic diagrams of an air pressure dispenser, an exploded air pressure dispenser, and a main body 11 with different viewing angles according to a second embodiment of the present invention. The difference between the second embodiment and the first embodiment is that the main body 11 of the air pressure splitting device 1 has four air pressure outlets 116, and the four air pressure outlets 116 are respectively communicated with the corresponding three air pressure communication cavities 113 and the air leakage recovery port 115. The air leakage recovering opening 115 is disposed at a side far from the four air pressure outlets 116, and the cover 12 is provided with three pressure releasing through holes 123a and three protruding portions 124a. When the three air pressure communication chambers 113 are communicated with the second air pressure conversion chamber 121 and the air leakage detection chamber 117 is communicated with one of the pressure release through holes 123a, air in the air cylinder is leaked through the pressure release through hole 123a, and the air leakage pressure is detected while the air is leaked through the air pressure sensor S, so that the weight of a user is calculated, and the air pressure inside the air cylinder after the air cylinder is inflated can be automatically fed back and set through an external control device; when one of the air pressure communication chambers 113 is communicated with the air release communication chamber 112, the third air pressure conversion chamber 122 can release air in the air cylinder corresponding to the air pressure communication chamber to the air cylinder communicated with the air release recovery port 115, thereby reducing the output efficiency pressure caused by the continuous supply of air by the air supply device. It should be noted that the details and the operation principle of the second embodiment may be the same as or explained with reference to the first embodiment, i.e. those skilled in the art can know the details and the operation principle of the second embodiment after referring to the first embodiment, and are not described herein.

Through the above structure, the air cushion bed can be circularly inflated and deflated to achieve the massage effect through the air pressure distributor provided by the invention, and the deflated pressure can be detected through the air pressure sensor S while deflating so as to calculate the weight of a user, and the pressure of the gas inside the inflated air cylinder is automatically fed back and set through the external control device, so that the user with different weights can lie on the air cushion bed comfortably, and the gas is recovered to the air cylinder communicated with the deflated recovery port 115 through the deflated communication cavity 112, thereby achieving the effect of reducing the pressure load generated by continuously supplying the gas to the air supply device. Further, the second embodiment provides more pneumatic outlets, allowing the air mattress to have more controllable massage areas.

However, the present invention has been described in terms of the preferred embodiments, and is not intended to be limiting, but rather to enable any person skilled in the art to make various changes and modifications without departing from the spirit and scope of the invention, which is defined in the appended claims.

In view of the above, it will be apparent to those skilled in the art that the present invention can achieve the above-mentioned objects, and the present invention meets the requirements of the patent laws.

Claims (10)

1. An air pressure dispenser comprising:

an air pressure shunt device, comprising:

the main body is provided with a first air pressure conversion cavity, a leakage communication cavity and a plurality of air pressure communication cavities, wherein the first air pressure conversion cavity is communicated with at least one air pressure input port, the leakage communication cavity is communicated with a leakage recovery port, and a plurality of air pressure output ports are respectively communicated with the corresponding air pressure communication cavity and the leakage recovery port; and

the cover body is covered on the main body, a second air pressure conversion cavity and a third air pressure conversion cavity are concavely arranged on one side surface facing the main body, and the second air pressure conversion cavity is communicated with the first air pressure conversion cavity; and

the driving device is connected with the air pressure dividing device and drives the cover body to rotate, and the second air pressure conversion cavity is communicated with at least one air pressure communication cavity through the rotation of the cover body, and one air pressure communication cavity is communicated with the air leakage communication cavity through the third air pressure conversion cavity;

when one of the air pressure communication cavities is communicated with the air leakage communication cavity, air is leaked to the air leakage recovery port through the air pressure output port corresponding to the air pressure communication cavity.

2. The air pressure dispenser of claim 1, wherein the air pressure input port is connected to an air pressure sensor, the main body further has an air leakage detecting cavity, the cover body is provided with at least one pressure relief through hole, and the air pressure sensor detects air leakage pressure when the pressure relief through hole is communicated with the air leakage detecting cavity.

3. The air pressure dispenser of claim 1 further comprising a trigger switch having a switch element and a signal connection, wherein the cover has at least one protrusion extending from its outer peripheral wall, wherein rotation of the cover causes the protrusion to actuate the switch element and transmit a trigger signal to an external control device via the signal connection.

4. A pneumatic dispenser as claimed in claim 3, wherein there are three of the projections.

5. A pneumatic dispenser as recited in claim 3, wherein the body of the pneumatic splitter device defines a trigger switch carrying tab and the trigger switch is disposed on the trigger switch carrying tab.

6. The air pressure distributor as in claim 3, wherein the driving device comprises a signal connection terminal, a plurality of positioning members, and a buffer spring, wherein the signal connection terminal is used for being connected to the external control device, and the buffer spring is arranged between the driving device and the air pressure distribution device.

7. The air pressure dispenser of claim 1 wherein there are two air pressure input ports and three air pressure output ports.

8. The air pressure dispenser of claim 1 wherein there are two air pressure input ports and four air pressure output ports.

9. The air pressure dispenser of claim 1 wherein the body is formed with a through hole and a drive shaft of the drive device is journaled to a journaling hole of the cover through the through hole.

10. The air pressure dispenser of claim 9 wherein the drive shaft is threaded with a pin for securing the air pressure diversion device and the drive device.