Protective tool

Abstract

The utility model discloses a protector which comprises an air pump, a plurality of air bags, a plurality of three-way valves and an inflation channel, an air outlet of the air pump is communicated with an air inlet of the inflation channel, the connecting ends of the three-way valves are all communicated with an air outlet of the inflation channel, the common end of each three-way valve is communicated with one air bag, and the air bag is communicated with the air bag. When the three-way valves are powered on, the connecting ends of the three-way valves are communicated with the common ends of the three-way valves, when the three-way valves are powered off, the common ends of the three-way valves are communicated with the deflation ends of the three-way valves, and each air bag is deflated by the corresponding three-way valve. Therefore, the deflation speed of the air bag is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of massage protective gears, in particular to a protective gear. Background Art

[0002] Protective gears are essential nursing supplies in daily life. By setting air bags on the protective gears and inflating and deflating the air bags, pressure can be applied to the muscles, playing a role in massage and treatment.

[0003] Existing protective gears usually have an air pump and multiple air bags. A first two-way valve is arranged between the air pump and each of the multiple air bags; the first end of the first two-way valve is connected to the air bag, and the second end is connected to the air pump and a second two-way valve; when inflating, the air pump is turned on, the second two-way valve is closed, and according to the inflation mode, the corresponding first two-way valve is controlled to be opened to inflate the air bag, and the first two-way valve is closed after inflation; when deflating, the air pump is turned off, the second two-way valve is opened, and according to the deflation mode, the corresponding first two-way valve is controlled to be opened to deflate the air bag. However, this setting requires at least one additional second two-way valve, which not only increases the cost but also has only one deflation channel, resulting in a slow deflation speed.

[0004] Therefore, how to quickly deflate the air bags on the protective gear has become the focus of attention in this field and among related personnel. Summary of the Utility Model

[0005] In view of this, the utility model provides a protective gear to solve the problem of slow deflation speed of the air bags on the existing protective gear.

[0006] To achieve one or part or all of the above purposes or other purposes, the utility model provides a protective gear, which includes an air pump, multiple air bags, multiple three-way valves, and an inflation channel. The air outlet of the air pump is communicated with the air inlet of the inflation channel. The connecting ends of the multiple three-way valves are all communicated with the air outlet of the inflation channel. The common end of each three-way valve is communicated with one air bag. When the three-way valve is powered on, the connecting end and the common end of the three-way valve are communicated. When the three-way valve is powered off, the common end and the deflation end of the three-way valve are communicated.

[0007] Preferably, the three-way valve includes a valve body and an electromagnetic valve. The valve body includes a first pipe body and a second pipe body that are communicated with each other. The two ends of the first pipe body are respectively a connecting end and a deflation end, and one end of the second pipe body is a common end. The electromagnetic valve is connected to the valve body. When the electromagnetic valve is powered on, the connecting end and the common end are communicated. When the electromagnetic valve is powered off, the common end and the deflation end are communicated.

[0008] Preferably, the solenoid valve includes an electromagnetic coil, a movable valve, and a spring. The electromagnetic coil is sleeved on the first pipe body, the first pipe body has a first valve cavity, the movable valve is slidably arranged in the first valve cavity, and the spring is arranged between the movable valve and the air release end. When the solenoid valve is energized, the electromagnetic coil drives the movable valve to move downward, and the connection end and the common end are communicated. When the solenoid valve is de-energized, the spring pushes the movable valve to move upward, and the common end and the air release end are communicated.

[0009] Preferably, the valve body includes an air release member. The air release member is arranged in the first valve cavity and is located at the air release end. The air release member is provided with an air release cavity for discharging the gas in the airbag. The spring is arranged between the movable valve and the air release member.

[0010] Preferably, a sealing groove is formed on the air release member. The three-way valve includes a sealing ring. The sealing ring is arranged in the sealing groove, and the outer wall of the sealing ring abuts against the first valve cavity.

[0011] Preferably, the valve body includes a first sealing block. A first groove is formed at one end of the movable valve, and the first sealing block is installed in the first groove. When the movable valve moves upward, the first sealing block seals the channel of the connection end.

[0012] Preferably, the valve body includes a second sealing block. A second groove is formed at the other end of the movable valve, and the second sealing block is installed in the second groove. When the movable valve moves downward, the second sealing block seals the air release cavity.

[0013] Preferably, the three-way valve includes a one-way valve. The one-way valve is arranged in the connection end, and the one-way valve allows the gas in the inflation channel to pass through.

[0014] Preferably, the three-way valve includes a housing and a top shell. A convex block is arranged on the housing, a groove is formed on the top shell, the convex block is inserted into the groove, the housing and the top shell are connected to form an installation cavity, the electromagnetic coil is arranged in the installation cavity, and a through hole is formed on the bottom wall of the housing. The air release cavity is communicated with the through hole.

[0015] Preferably, the protective device further includes a plurality of air delivery channels. The air inlet of each air delivery channel is communicated with a common end, and the air outlet of each air delivery channel is communicated with an airbag.

[0016] Implementing the embodiments of the present invention will have the following beneficial effects:

[0017] After adopting the above-mentioned protective gear, when inflating, the air pump is turned on, the corresponding three-way valve is powered on, the channel between the connection end of the three-way valve and the common end of the three-way valve is opened, and the channel between the air release end of the three-way valve and the common end of the three-way valve is closed to inflate the airbag; when deflating, the air pump is turned off, the corresponding three-way valve is powered off, the channel between the air release end of the three-way valve and the common end of the three-way valve is opened, and the channel between the connection end of the three-way valve and the common end of the three-way valve is closed to deflate the airbag. Since each airbag has an independent air release channel, the air release speed of the airbag is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Wherein:

[0020] Figure 1 It is a schematic diagram of the internal connection structure of the protective gear in an embodiment;

[0021] Figure 2 It is a schematic diagram of the structure of the three-way valve of the protective gear in an embodiment;

[0022] Figure 3 It is an exploded view of the three-way valve of the protective gear in an embodiment;

[0023] Figure 4 It is a sectional view of the three-way valve of the protective gear in a power-off state in an embodiment;

[0024] Figure 5 It is a sectional view of the three-way valve of the protective gear in a powered-on state in an embodiment;

[0025] Figure 6 It is a schematic diagram of the structure of the protective gear in an embodiment.

[0026] Description of reference numerals: 1. Air pump; 2. Airbag; 3. Three-way valve; 31. Housing; 311. Protrusion; 312. Through hole; 32. Top shell; 321. Groove; 33. Valve body; 331. First pipe body; 332. Second pipe body; 333. First valve cavity; 334. Second valve cavity; 335. Connection end; 336. Common end; 337. Air release end; 34. Solenoid valve; 341. Electromagnetic coil; 342. Movable valve; 343. First groove; 344. Second groove; 345. Spring; 35. Installation cavity; 36. Air release member; 361. Sealing groove; 362. Air release cavity; 37. Sealing ring; 38. First sealing block; 381. Second sealing block; 39. Check valve; 4. Inflation channel; 5. Air delivery channel; 6. Controller. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Refer to Figure 1 , an embodiment of the present invention provides a protective device, which includes an air pump 1, a plurality of airbags 2, a plurality of three-way valves 3, and an inflation channel 4. The air outlet of the air pump 1 is communicated with the air inlet of the inflation channel 4. The connection ends 335 of the plurality of three-way valves 3 are all communicated with the air outlet of the inflation channel 4. The common end 336 of each three-way valve 3 is communicated with an airbag 2. The air pump 1 is used to inflate the plurality of airbags 2, and the inflation and deflation of the airbags 2 are controlled by the corresponding three-way valves 3. When the three-way valve 3 is powered on, the connection end 335 of the three-way valve 3 is communicated with the common end 336 of the three-way valve 3. When the three-way valve 3 is powered off, the common end 336 of the three-way valve 3 is communicated with the air release end 337 of the three-way valve 3. One three-way valve 3 is provided corresponding to one airbag 2, and the air release end 337 of the three-way valve 3 deflates the airbag 2, thereby improving the deflation speed of the airbag 2. It should be noted that the number of airbags 2 is two or more.

[0029] Refer to Figure 1 , the protective device further includes a plurality of air delivery channels 5. The air inlet of each air delivery channel 5 is communicated with the common end 336 of a three-way valve 3, and the air outlet of each air delivery channel 5 is communicated with an airbag 2. The three-way valve 3 is used to communicate the air delivery channel 5 with the inflation channel 4, so as to facilitate the control of the inflation of the airbag 2.

[0030] Refer to Figure 6, the protective gear further includes a controller 6 which is arranged on the outer side of the protective gear. There are four airbags 2 arranged inside the protective gear; both the air pump 1 and the three-way valve 3 are electrically connected to the controller 6, and the controller 6 can control the opening and closing of the air pump 1 and the three-way valve 3; the air pump 1 and the three-way valve 3 can be arranged inside the controller 6 or inside the protective gear.

[0031] Referring to Figure 2 and Figure 3 , the three-way valve 3 includes a housing 31, a top shell 32, a valve body 33 and a solenoid valve 34. There is a convex block 311 arranged on the housing 31, and a groove 321 is opened on the top shell 32. The convex block 311 is inserted into the groove 321, so as to realize the connection and fixation between the top shell 32 and the housing 31. The top shell 32 and the housing 31 are connected to form an installation cavity 35. The lower end of the valve body 33 is inserted into the installation cavity 35, and the solenoid valve 34 is connected to the valve body 33.

[0032] Referring to Figure 3 , the valve body 33 includes a first pipe body 331 and a second pipe body 332 which are communicated with each other. The first pipe body 331 and the second pipe body 332 are arranged perpendicular to each other. The first pipe body 331 is provided with a first valve cavity 333, and the second pipe body 332 is provided with a second valve cavity 334. The first valve cavity 333 and the second valve cavity 334 constitute the inner cavity of the valve body 33, so as to facilitate the transportation of gas inside the valve body 33.

[0033] Referring to Figure 3 , both ends of the first pipe body 331 are respectively a connection end 335 and a deflation end 337. One end of the second pipe body 332 is a common end 336. The connection end 335 is communicated with the inflation channel 4, and the common end 336 is communicated with the airbag 2. When the solenoid valve 34 is powered on, the connection end 335 and the common end 336 are communicated, and the airbag 2 is inflated. When the solenoid valve 34 is powered off, the common end 336 and the deflation end 337 are communicated, and the airbag 2 is deflated. The on-off of the common end 336 and the deflation end 337 is controlled by the solenoid valve 34.

[0034] Referring to Figure 3 , the solenoid valve 34 includes an electromagnetic coil 341, a movable valve 342 and a spring 345. The electromagnetic coil 341 is sleeved on the first pipe body 331. The movable valve 342 is slidably arranged in the first valve cavity 333. The spring 345 is arranged between the movable valve 342 and the deflation end 337; the movable valve 342 is made of a magnetically conductive material, so as to facilitate the control of the electromagnetic coil 341 over the movable valve 342. When the solenoid valve 34 is powered on, the electromagnetic coil 341 drives the movable valve 342 to move downward, and the spring 345 is compressed by force, and the connection end 335 and the common end 336 are communicated. When the solenoid valve 34 is powered off, the spring 345 resets, and the spring 345 pushes the movable valve 342 to move upward, and the common end 336 and the deflation end 337 are communicated.

[0035] Referring to Figure 3, the valve body 33 includes a gas bleeder 36. The gas bleeder 36 is disposed within the first valve chamber 333 and is located below the movable valve 342. The gas bleeder 36 is provided with a gas bleeder chamber 362. A through hole 312 is formed in the bottom wall of the housing 31. The gas bleeder chamber 362 communicates with the through hole 312 to facilitate the discharge of the gas within the airbag 2 through the gas bleeder chamber 362. A spring 345 is disposed between the movable valve 342 and the gas bleeder 36. A sealing groove 361 is formed in the gas bleeder 36. The three-way valve 3 includes a sealing ring 37. The sealing ring 37 is disposed within the sealing groove 361. The outer wall of the sealing ring 37 abuts against the inner wall of the first valve chamber 333, thereby enhancing the sealing effect between the gas bleeder 36 and the first valve chamber 333.

[0036] Refer to Figure 3 , the valve body 33 includes a first sealing block 38 and a second sealing block 381. A first groove 343 is formed at the upper end of the movable valve 342, and a second groove 344 is formed at the lower end of the movable valve 342. The first sealing block 38 is installed within the first groove 343, and the second sealing block 381 is installed within the second groove 344. When the movable valve 342 moves upward, the first sealing block 38 seals the passage of the connecting end 335. When the movable valve 342 moves downward, the second sealing block 381 seals the gas bleeder chamber 362, thereby sealing the connection between the movable valve 342 and the connecting end 335 and the connection between the movable valve 342 and the gas bleeding end 337 within the first valve chamber 333.

[0037] Refer to Figure 3 , the three-way valve 3 includes a check valve 39. The check valve 39 is disposed within the first valve chamber 333 and is located at the connecting end 335, thereby preventing the increase in the volume of the three-way valve 3 and saving the space required for the installation of the three-way valve 3. Through the setting of the check valve 39, the check valve 39 allows the gas within the inflation passage 4 to pass through, such that the gas can only flow through the connecting end 335, through the common end 336, and then into the airbag 2. The gas within the airbag 2 will not flow out through the common end 336 via the connecting end 335. At the same time, the gas within the airbag 2 will not flow back into other airbags 2 with lower pressure values, achieving the effect of maintaining pressure. Thus, after the pressure within the first inflated airbag 2 reaches the preset value, the second three-way valve 3 is opened to inflate the second airbag 2, and the gas within the first airbag 2 will not flow into the second airbag 2. Among them, the check valve 39 is made of a silicone material and is in a closed state under normal conditions. During inflation, due to the certain pressure of the air pump 1, the check valve 39 is pushed open.

[0038] Refer to Figure 5 , during inflation, the air pump 1 is turned on. According to the inflation mode, the corresponding three-way valve 3 is powered on. The passage between the connecting end 335 and the common end 336 is opened, and the movable valve 342 blocks the passage of the gas bleeding end 337, thereby closing the passage between the gas bleeding end 337 and the common end 336 and inflating the airbag 2.

[0039] Reference Figure 4 Figure 4 , when deflating, the air pump 1 is turned off. According to the deflation mode, the corresponding three-way valve 3 is powered off. The channel between the deflation end 337 and the common end 336 is opened, and the movable valve 342 blocks the channel of the connection end 335, so that the channel between the connection end 335 and the common end 336 is closed, and the airbag 2 is deflated. Since each airbag 2 has an independent deflation channel, the deflation speed of the airbag 2 is increased.

[0040] Reference Figure 4 and Figure 5 Figure 4 and Figure 5 , usually during the use of the two-way valve, if the user accidentally presses the inflating airbag 2, the device will determine that the pressure in the airbag 2 has reached the set value and will close the two-way valve to stop the inflation of the airbag 2, resulting in a small amount of gas in the airbag 2. In fact, the pressure in the airbag 2 has not reached the set value. It is necessary to wait for all the airbags 2 to complete one cycle before the unfilled airbag 2 can be normally filled in the next cycle; however, in this application, the three-way valve 3 is selected. Even if there is a problem with the two-way valve, when inflating the next airbag 2, the previously unfilled airbag 2 will also be filled together, solving the problem of waiting for the next cycle to arrive to be filled, and improving the user experience.

[0041] The above-disclosed are only the preferred embodiments of the present utility model. Of course, the scope of the rights of the present utility model cannot be limited thereby. Therefore, equivalent changes made according to the claims of the present utility model still fall within the scope covered by the present utility model.

Claims

1. A protective gear, characterized in that: The invention comprises an air pump (1), a plurality of air bags (2), a plurality of three-way valves (3) and an inflation channel (4); the air outlet of the air pump (1) is connected to the air inlet of the inflation channel (4); the connection ends (335) of the plurality of three-way valves (3) are all connected to the air outlet of the inflation channel (4); the common end (336) of each of the three-way valves (3) is connected to one of the air bags (2); when the three-way valve (3) is powered on, the connection end (335) of the three-way valve (3) is connected to the common end (336) of the three-way valve (3); when the three-way valve (3) is powered off, the common end (336) of the three-way valve (3) is connected to the deflation end (337) of the three-way valve (3).

2. A protective gear as claimed in claim 1, characterized in that: The three-way valve (3) comprises a valve body (33) and a solenoid valve (34); the valve body (33) comprises a first tube body (331) and a second tube body (332) which are connected to each other; the two ends of the first tube body (331) are a connecting end (335) and a venting end (337), respectively; one end of the second tube body (332) is a common end (336); the solenoid valve (34) is connected to the valve body (33); when the solenoid valve (34) is powered on, the connecting end (335) is connected to the common end (336); when the solenoid valve (34) is powered off, the common end (336) is connected to the venting end (337).

3. A protective gear as claimed in claim 2, characterized in that: The electromagnetic valve (34) comprises an electromagnetic coil (341), a movable valve (342) and a spring (345); the electromagnetic coil (341) is sleeved on the first tube body (331); the first tube body (331) has a first valve cavity (333); the movable valve (342) is slidably arranged in the first valve cavity (333); and the spring (345) is arranged between the movable valve (342) and the air release end (337); when the electromagnetic valve (34) is powered on, the electromagnetic coil (341) drives the movable valve (342) to move downward, and the connecting end (335) is connected to the common end (336); when the electromagnetic valve (34) is powered off, the spring (345) pushes the movable valve (342) to move upward, and the common end (336) is connected to the air release end (337).

4. A protective gear as claimed in claim 3, characterized in that: The valve body (33) comprises a deflation member (36), wherein the deflation member (36) is arranged in the first valve cavity (333) and is located at the deflation end (337), and the deflation member (36) is provided with a deflation cavity (362), and the deflation cavity (362) is used for discharging the gas in the airbag (2); the spring (345) is arranged between the movable valve (342) and the deflation member (36).

5. A protective gear as claimed in claim 4, characterized in that: The air release member (36) is provided with a sealing groove (361), and the three-way valve (3) comprises a sealing ring (37). The sealing ring (37) is arranged in the sealing groove (361), and the outer wall of the sealing ring (37) abuts against the first valve cavity (333).

6. A protective gear as claimed in claim 4, characterized in that: The valve body (33) includes a first sealing block (38). A first groove (343) is formed at one end of the movable valve (342). The first sealing block (38) is installed in the first groove (343). When the movable valve (342) moves upward, the first sealing block (38) seals the channel of the connecting end (335).

7. A protective gear as claimed in claim 6, characterized in that: The valve body (33) includes a second sealing block (381). A second groove (344) is formed at the other end of the movable valve (342). The second sealing block (381) is installed in the second groove (344). When the movable valve (342) moves downward, the second sealing block (381) seals the degassing cavity (362).

8. A protective gear as claimed in claim 1, characterized in that: The three-way valve (3) comprises a one-way valve (39), wherein the one-way valve (39) is arranged in the connecting end (335), and the one-way valve (39) allows the gas in the inflation channel (4) to pass through.

9. A protective gear as claimed in claim 4, characterized in that: The three-way valve (3) comprises an outer shell (31) and a top shell (32); the outer shell (31) is provided with a protrusion (311); the top shell (32) is provided with a groove (321); the protrusion (311) is inserted into the groove (321); the outer shell (31) and the top shell (32) are connected to form a mounting cavity (35); the electromagnetic coil (341) is arranged in the mounting cavity (35); a through hole (312) is provided on the bottom wall of the outer shell (31); and the air release cavity (362) is connected to the through hole (312).

10. A protective gear as claimed in claim 1, characterized in that: The protective gear further comprises a plurality of air delivery channels (5), the air inlet of each of the air delivery channels (5) being connected to a common end (336), and the air outlet of each of the air delivery channels (5) being connected to a gas bag (2).

Images