Automatic pressure supply lifesaving valve body for inflatable lifesaving appliance

Abstract

The utility model relates to an automatic pressure supply lifesaving valve body for an inflatable lifesaving appliance, and relates to the technical field of lifesaving appliances. One end of the valve body is provided with an inflation channel, the side wall of the valve body is provided with an inflation channel, a blocking piece is arranged in the inflation channel, the side wall of the valve body is communicated with an inflation pipe, the other end of the inflation pipe is communicated with the inflation channel, the inner wall of the inflation channel is provided with a blocking plate, the blocking plate is slidably connected with an air inlet piston, and an air inlet channel is formed in the air inlet piston; a driving assembly is arranged in the valve body and used for opening the blocking piece and the air inlet channel, an air overflowing hole is formed in the blocking plate, a detection device used for detecting the air pressure in the air inflation channel is arranged on the inner wall of the air inflation channel, and the detection device is electrically connected with the air inflation equipment and the driving assembly so that the air inflation equipment and the driving assembly can be started when the detection value is lower than a preset value. The lifesaving valve has the advantages that the lifesaving valve body can continuously inflate and supply pressure to the lifesaving appliance, and the anti-sinking performance and safety of the lifesaving appliance are improved.

Description

Technical Field

[0001] The present application relates to the technical field of life-saving equipment, and in particular to an automatic pressure-supplying life-saving valve body for an inflatable life-saving equipment. Background Art

[0002] An inflatable life-saving device is an automatically inflated life-saving device, usually used for water rescue. Common inflatable life-saving devices include lifebuoys, life rafts, etc.

[0003] In the related art, a life-saving quick-release valve is designed, which includes a valve body, an air intake pipe channel, an air expansion component channel, a valve member channel and a chamber, the chamber is arranged at the intersection of the air intake pipe channel, the air expansion component channel and the valve member channel, a screw plug is arranged in the chamber, an air hole is arranged on the screw plug, a baffle is arranged in the screw plug, the baffle is used to seal the air intake pipe channel, a striker is arranged in the valve member channel, the needle tip of the striker is used to pierce the baffle, a spring and a pressure cover are arranged on the striker, and the striker head is connected to a pull ring safety pin. During use, the air expansion component channel is connected to the inflatable life-saving device, the air intake pipe channel is connected to the inflatable device, the striker slides through the pull ring safety pin, and the baffle is pierced, so that the airflow of the inflatable device can enter the inflatable life-saving device through the air intake pipe and the air expansion component channel to complete the inflation.

[0004] In the process of realizing the above-mentioned related technologies, there are the following problems: when the life-saving equipment is put into use, since the life-saving equipment is not airtight, the internal gas will slowly leak through the tiny gap, resulting in insufficient internal pressure of the life-saving equipment, and then the life-saving equipment cannot provide effective buoyancy and sinks. The life-saving valve body in the above-mentioned technology lacks the function of automatic pressure supply. At this time, personnel are required to manually start the inflation device. However, during the life-saving process, both the life-saving personnel and the rescued personnel are highly concentrated, and it is difficult to pay attention to the internal pressure status of the life-saving equipment, and it is also difficult to open and close the inflation device in an emergency, which brings inconvenience and safety hazards to the life-saving operation, so it needs to be improved. Utility Model Content

[0005] In order to enable the life-saving valve body to continuously inflate and pressure-supply the life-saving equipment, thereby improving the anti-sinking performance and safety of the life-saving equipment, the present application provides an automatic pressure-supplying life-saving valve body for an inflatable life-saving equipment.

[0006] The present application provides an automatic pressure-supplying lifesaving valve body for an inflatable lifesaving device, which adopts the following technical solution:

[0007] 14. The air intake valve according to claim 13, wherein the air intake valve is provided with a pressure relief valve, and the pressure relief valve is provided with a pressure relief valve. The pressure relief valve is provided with a pressure relief valve, and the pressure relief valve is provided with a pressure relief valve.

[0008] By adopting the above technical solution, the driving component is started, the baffle and the air inlet channel are opened, and the life-saving device is inflated. After the inflation is completed, the driving component is reset and the air inlet channel is closed. At this time, the gas in the life-saving device will enter the inflation channel through the overflow hole, so that the air pressure in the inflation channel is consistent with the air pressure in the life-saving device. The air pressure in the inflation channel detected by the detection device is the air pressure in the life-saving device. When the detection value is lower than the preset value, the detection device will control the inflation device and the driving component to start, thereby automatically supplying pressure to keep the air pressure in the life-saving device stable. The degree of automation is high, no manual operation is required, and it has high convenience and safety.

[0009] Optionally, the driving assembly includes a telescopic member, a rack, a rotating rod, a gear, a first plug, a second plug and an elastic member, the telescopic member is arranged in the valve body, the rack is connected to the piston rod of the telescopic member, the end of the rack away from the telescopic member is arranged toward the baffle, the rotating rod is rotatably connected to the valve body, the gear is sleeved on the peripheral wall of the rotating rod, the gear is meshed with the rack, one end of the rotating rod passes through the valve body and is inserted into the inflation channel, the first plug is connected to the end wall of the rotating rod located in the valve body, and the second plug is arranged at the inlet piston near the first plug The end wall of the head, the air intake passage is opened through the second plug, the first plug and the second plug are both in contact with the inner wall of the air expansion passage, the connecting port of the inflation tube and the air expansion passage is located between the first plug and the second plug, the end walls of the first plug and the second plug close to each other are both provided with a yielding curved surface, the first plug and the second plug are fitted to each other through their respective yielding curved surfaces, the elastic member is sleeved on the peripheral wall of the intake piston, the elastic member is in contact with between the baffle plate and the second plug, and the elastic member enables the intake piston to maintain a movement trend toward the first plug.

[0010] By adopting the above technical solution, when the detection device detects that the air pressure in the inflation channel is insufficient, it will control the inflation device and the driving assembly to start, the telescopic part will start, and the rack will be driven to move. After the rack abuts against the baffle, the inflation channel is opened. At the same time, the rack is meshed with the gear to drive the rotating rod to rotate, and the rotating rod drives the first plug to rotate. The first plug and the second plug respectively produce a misaligned abutment relationship through the yielding surfaces. The air intake piston slides toward the direction of the life-saving equipment, the elastic part is compressed, and the elastic potential energy is accumulated. At this time, the entrance of the air intake channel on the second plug is exposed, and the gas can enter the air intake channel through the inflation tube, thereby passing through the air intake channel When the pressure in the air inflation channel reaches a preset value, the telescopic part is reset, the rotating rod and the first plug are reversed, and under the action of the elastic part, the air intake piston and the second plug are reset, and the first plug and the second plug are again abutted against each other through the yielding curved surface to achieve the closure of the air intake channel. Since the first plug and the second plug are both abutted against the inner wall of the air inflation channel, the gas cannot pass through, thereby maintaining the air pressure in the air inflation channel and the life-saving device stable. The driving component of the present application can realize the automatic pressure supply function, which is helpful to improve the safety of life-saving operations.

[0011] Optionally, a limiting rod is provided on a side of the second plug facing away from the first plug, the limiting rod is arranged parallel to the intake piston, and an end of the limiting rod facing away from the second plug passes through the blocking plate.

[0012] By adopting the above technical solution, the setting of the limit rod can prevent the second plug and the intake piston from rotating, so that the drive assembly and the intake piston can operate stably, thereby improving the stability of the pressure supply.

[0013] Optionally, sealing gaskets are provided on the yielding curved surfaces of the first plug and the second plug.

[0014] By adopting the above technical solution, the provision of a sealing gasket can further improve the sealing performance when the first plug and the second plug are fitted together, and effectively prevent the gas leakage in the lifesaving equipment.

[0015] Optionally, the baffle includes two rotating plates, both of which are rotatably connected to the inner wall of the inflation channel, and after the telescopic member drives the rack to slide, the rack abuts against the junction of the two rotating plates and drives the rotating plates to rotate.

[0016] By adopting the above technical solution, the movement of the rack will counteract the rotating plate. As the telescopic part continues to operate, the two rotating plates will rotate away from each other, thereby opening the inflation channel, allowing the gas of the inflatable equipment to enter the valve body, the inflation tube, the inflation channel, the air intake channel and the life-saving equipment, which is highly convenient.

[0017] Optionally, a reset member is provided at the rotation connection between the rotating plate and the inflation channel, and the reset member enables the rotating plate to maintain a rotation tendency in a direction away from the inflation channel.

[0018] By adopting the above technical solution and setting a reset member, the baffle of the present application can be restored after the force of the rack is cancelled, so that the life-saving valve body of the present application can be reused, thereby improving the economic benefits.

[0019] Optionally, two limit plates are provided on the inner wall of the inflation channel, the limit plates and the rotating plates correspond one to one, the limit plates are located on the side of the rotating plate away from the inlet of the air inlet channel, and the rotating plate abuts against the corresponding bottom wall of the limit plate when not rotating.

[0020] By adopting the above technical solution, the limiting plate is provided to limit the rotation angle of the rotating plate, so that the two rotating plates can always maintain a closed state under the action of the reset member and the limiting plate, preventing gas circulation and improving the overall sealing.

[0021] Optionally, an air baffle is provided in the valve body, the air baffle is located above the connection port between the inflation tube and the valve body, and the rack passes through the air baffle.

[0022] By adopting the above technical solution, the air baffle is provided to limit the flow direction of the gas entering the valve body from the inflation device, so that the gas can flow stably toward the inflation tube, thereby improving the efficiency of the inflation pressure supply.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Due to the presence of the overflow hole, the air pressure in the life-saving appliance and the inflation channel remains consistent. The air pressure detected by the detection device is the air pressure in the life-saving appliance. When the detection value is lower than the preset value, the detection device will control the inflation device and the drive component to start, thereby automatically supplying pressure to keep the air pressure in the life-saving appliance stable. The automation level is high, no manual operation is required, and it has high convenience and safety;

[0025] 2. The baffle is configured as two rotatable plates, so that the baffle of the present application can be reset under the action of a reset member after use, so that the valve body of the present application can be reused, with high economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of an automatic pressure-supplying life-saving valve body for an inflatable life-saving device in an embodiment of the present application.

[0027] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle.

[0028] Explanation of the reference numerals in the accompanying drawings: 1. valve body; 11. inflation channel; 12. baffle; 121. rotating plate; 122. reset member; 123. limit plate; 13. inflation tube; 2. inflation channel; 21. baffle plate; 211. overflow hole; 22. intake piston; 221. intake channel; 23. detection device; 3. drive assembly; 31. telescopic member; 32. rack; 33. rotating rod; 34. gear; 35. first plug; 36. second plug; 361. limit rod; 37. elastic member; 38. yielding surface; 39. sealing pad; 4. air baffle. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-2 This application is described in further detail.

[0030] The embodiment of the present application discloses an automatic pressure-supplying lifesaving valve body for an inflatable lifesaving device. Figure 1 and Figure 2 , including a valve body 1, one end of the valve body 1 is provided with an inflation channel 11, the inflation channel 11 is used to communicate with the inflation device to allow gas to enter; the side wall of the valve body 1 is provided with an inflation channel 2 by welding, the inflation channel 2 is used to communicate with the life-saving equipment, and an inflation tube 13 is provided between the valve body 1 and the inflation channel 2, the inflation tube 13 is used to communicate the valve body 1 and the inflation channel 2 to inflate the life-saving equipment.

[0031] Reference Figure 1 and Figure 2 A baffle 12 is provided in the inflation channel 11. The baffle 12 is located below the communication port between the inflation tube 13 and the valve body 1. The baffle 12 includes two rotating plates 121. The two rotating plates 121 are symmetrical to each other. Both rotating plates 121 are rotatably connected to the inner wall of the inflation channel 11. A reset member 122 is provided at the rotation connection between the two rotating plates 121 and the inner wall of the inflation channel 11. In this embodiment, the reset member 122 is a torsion spring, one end of which is connected to the rotating plate 121 by gluing, and the other end of which is connected to the inner wall of the inflation channel 11 by gluing. Under the action of the reset member 122, the rotating plate 121 is always kept It maintains a rotation tendency toward the direction away from the entrance of the inflation channel 11, so that the baffle 12 of the present application can be restored after opening, thereby maintaining the reusability of the valve body 1 of the present application; two limit plates 123 are arranged on the inner wall of the inflation channel 11 by welding, and the limit plates 123 and the rotating plates 121 are arranged one by one. The limit plates 123 are located on the side of the rotating plate 121 away from the entrance of the intake channel 221. When the rotating plate 121 is not rotated, the rotating plate 121 abuts against the corresponding bottom wall of the limit plate 123 to keep the two rotating plates 121 abutting against each other, blocking the intake channel 221 and the inflation tube 13.

[0032] Reference Figure 1A baffle plate 21 is provided on the inner wall of the inflation channel 2 close to the life-saving device, and an air intake piston 22 is slidably connected to the baffle plate 21. An air intake channel 221 is provided in the air intake piston 22. The air intake channel 221 is used to connect the inflation channel 2 and the life-saving device to inflate and supply pressure to the life-saving device.

[0033] Reference Figure 1 A driving assembly 3 is provided in the valve body 1, and the driving assembly 3 is used to open the baffle 12 and the air inlet channel 221 so that the gas enters the air inlet channel 221 through the inflation tube 13. The driving assembly 3 includes a telescopic member 31, a rack 32, a rotating rod 33, a gear 34, a first plug 35, a second plug 36 and an elastic member 37.

[0034] Reference Figure 1 The telescopic member 31 is arranged in the valve body 1. In the present embodiment, the telescopic member 31 is a cylinder, and its piston rod is arranged along the height direction of the valve body 1. The rack 32 is connected to the piston rod of the telescopic member 31 by welding. The rack 32 is arranged vertically, and the end of the rack 32 away from the telescopic member 31 is arranged toward the baffle 12. When the telescopic member 31 drives the rack 32 to slide, the bottom end of the rack 32 will abut against the baffle 12, and the rotating plate 121 will rotate, thereby opening the inflation channel 11; an air baffle plate 4 is arranged on the inner wall of the valve body 1 by welding, and the air baffle plate 4 is located above the connection port between the inflation tube 13 and the valve body 1, and the rack 32 passes through the air baffle plate 4 to limit the flow direction of the gas.

[0035] Reference Figure 1 The rotating rod 33 is rotatably connected to the valve body 1. The rotating rod 33 is located above the baffle 12. The gear 34 is sleeved on the peripheral wall of the rotating rod 33 by a key connection. The gear 34 is meshed with the rack 32. When the telescopic member 31 drives the rack 32 to move, the meshing relationship between the rack 32 and the gear 34 can drive the rotating rod 33 to rotate synchronously; one end of the rotating rod 33 passes through the valve body 1 and is inserted into the inflation channel 2. The first plug 35 is connected to the end wall of the rotating rod 33 located in the valve body 1 by gluing. The second plug 36 is gluingly arranged on the end wall of the intake piston 22 close to the first plug 35. The intake channel 221 is opened through the second plug 36. The first plug 35 and the second plug 36 both abut against the inner wall of the inflation channel 2 to prevent the flow of gas.

[0036] Reference Figure 1The communication port between the inflation tube 13 and the inflation channel 2 is located between the first plug 35 and the second plug 36. The end walls of the first plug 35 and the second plug 36 that are close to each other are provided with a yielding curved surface 38. A sealing gasket 39 is provided on the surface of the yielding curved surface 38 by gluing to improve the sealing between the first plug 35 and the second plug 36. The elastic member 37 is sleeved on the peripheral wall of the intake piston 22. The elastic member 37 adopts a spring. The elastic member 37 abuts between the baffle plate 21 and the second plug 36. Under the drive of the elastic member 37, The intake piston 22 always maintains a movement trend toward the first plug 35. When the rotating rod 33 does not rotate, the first plug 35 and the second plug 36 fit each other through their respective yielding curved surfaces 38, thereby closing the intake channel 221 and preventing gas from passing through. When the rotating rod 33 rotates, the yielding curved surfaces 38 of the first plug 35 and the second plug 36 are misaligned, thereby causing the intake piston 22 to move, the elastic member 37 to compress, and the opening of the intake channel 221 to be exposed, thereby allowing gas to be filled.

[0037] Reference Figure 1 The side of the second plug 36 facing away from the first plug 35 is connected to a limiting rod 361 by welding. The limiting rod 361 is arranged parallel to the intake piston 22. The end of the limiting rod 361 facing away from the second plug 36 passes through the blocking plate 21 to prevent the intake piston 22 from rotating, thereby maintaining the stability of the operation of the drive assembly 3.

[0038] Reference Figure 1 The baffle plate 21 is provided with a plurality of overflow holes 211 along the thickness direction, and the overflow holes 211 are used to connect the inflation channel 2 and the life-saving equipment so as to balance the air pressure in the life-saving equipment and the inflation channel 2. The inner wall of the inflation channel 2 is provided with a detection device 23 for detecting the air pressure in the inflation channel 2 by gluing. In this embodiment, the detection device 23 adopts a PLC controller and an air pressure sensor. A preset value of the air pressure (such as 3.5Kpa) is preset in the controller. When the air pressure sensor detects that the actual air pressure is lower than the preset value, an alarm is sent to the controller. The controller is electrically connected to the inflation device and the drive component 3 to start the inflation device and the drive component 3 when the detection value is lower than the preset value, thereby realizing fully automatic continuous inflation pressure supply.

[0039] The implementation principle of an automatic pressure-supply life-saving valve body for an inflatable life-saving device in an embodiment of the present application is as follows: start the drive component 3, open the baffle 12 and the air inlet channel 221, and inflate the life-saving device. After the inflation is completed, the drive component 3 is reset and the air inlet channel 221 is closed. At this time, the gas in the life-saving device will enter the inflation channel 2 through the overflow hole 211, so that the air pressure in the inflation channel 2 is consistent with the air pressure in the life-saving device. The detection device 23 detects that the air pressure in the inflation channel 2 is the air pressure in the life-saving device. When the detection value is lower than the preset value, the detection device 23 will control the inflation device and the drive component 3 to start, thereby automatically supplying pressure.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic pressure-supplying lifesaving valve body for an inflatable lifesaving device, comprising a valve body (1), one end of the valve body (1) is provided with an inflation channel (11), the inflation channel (11) is connected to an inflation device, the side wall of the valve body (1) is provided with an inflation channel (2), the inflation channel (2) is connected to the lifesaving device, and is characterized in that: A baffle (12) is provided in the inflation channel (11); an inflation tube (13) is communicated with the side wall of the valve body (1); the other end of the inflation tube (13) is communicated with the inflation channel (2); a baffle plate (21) is provided on the inner wall of the inflation channel (2); an air intake piston (22) is slidably connected to the baffle plate (21); an air intake channel (221) is provided in the air intake piston (22); a drive assembly (3) is provided in the valve body (1); the drive assembly (3) is used to The baffle (12) and the air inlet passage (221) are opened to allow gas to enter the air inlet passage (221) through the inflation tube (13); the baffle plate (21) is provided with an overflow hole (211) extending through the baffle plate along the thickness direction; the inner wall of the inflation passage (2) is provided with a detection device (23) for detecting the air pressure in the inflation passage (2); the detection device (23) is electrically connected to the inflation device and the drive assembly (3) to start the inflation device and the drive assembly (3) when the detection value is lower than a preset value.

2. The automatic pressure-supplying lifesaving valve body for an inflatable lifesaving device according to claim 1, characterized in that: The driving assembly (3) comprises a telescopic member (31), a rack (32), a rotating rod (33), a gear (34), a first plug (35), a second plug (36) and an elastic member (37); the telescopic member (31) is arranged in the valve body (1); the rack (32) is connected to the piston rod of the telescopic member (31); the end of the rack (32) away from the telescopic member (31) is arranged toward the baffle (12); the rotating rod (33) is rotatably connected to the valve body (1); the gear (34) is sleeved on the peripheral wall of the rotating rod (33); the gear (34) is meshed with the rack (32); one end of the rotating rod (33) passes through the valve body (1) and is inserted into the inflation channel (2); the first plug (35) is connected to the end wall of the rotating rod (33) located in the valve body (1); the second plug (36) is arranged on the intake piston (22); ) is close to the end wall of the first plug (35), the air intake passage (221) is opened through the second plug (36), the first plug (35) and the second plug (36) are both in contact with the inner wall of the inflation passage (2), the communication port between the inflation tube (13) and the inflation passage (2) is located between the first plug (35) and the second plug (36), the end walls of the first plug (35) and the second plug (36) close to each other are both provided with a yielding curved surface (38), the first plug (35) and the second plug (36) are fitted to each other through their respective yielding curved surfaces (38), the elastic member (37) is sleeved on the peripheral wall of the air intake piston (22), the elastic member (37) is in contact between the baffle plate (21) and the second plug (36), and the elastic member (37) enables the air intake piston (22) to maintain a movement trend toward the first plug (35).

3. The automatic pressure-supplying lifesaving valve body for an inflatable lifesaving device according to claim 2, characterized in that: A limiting rod (361) is provided on a side of the second plug (36) facing away from the first plug (35), and the limiting rod (361) is arranged parallel to the intake piston (22). An end of the limiting rod (361) facing away from the second plug (36) passes through the blocking plate (21).

4. The automatic pressure-supplying lifesaving valve body for an inflatable lifesaving device according to claim 2, characterized in that: The surfaces of the yielding curved surfaces (38) of the first plug (35) and the second plug (36) are both provided with sealing pads (39).

5. The automatic pressure-supplying lifesaving valve body for an inflatable lifesaving device according to claim 2, characterized in that: The blocking piece (12) comprises two rotating plates (121), and the two rotating plates (121) are both rotatably connected to the inner wall of the inflation channel (11). After the telescopic member (31) drives the rack (32) to slide, the rack (32) abuts against the joint of the two rotating plates (121) and drives the rotating plates (121) to rotate.

6. The automatic pressure-supplying lifesaving valve body for an inflatable lifesaving device according to claim 5, characterized in that: A resetting member (122) is provided at the rotational connection between the rotating plate (121) and the inflation channel (11), and the resetting member (122) enables the rotating plate (121) to maintain a rotational tendency in a direction away from the inflation channel (11).

7. The automatic pressure-supplying lifesaving valve body for an inflatable lifesaving device according to claim 5, characterized in that: Two limit plates (123) are arranged on the inner wall of the inflation channel (11), the limit plates (123) and the rotating plates (121) correspond to each other one by one, the limit plates (123) are located on the side of the rotating plate (121) away from the entrance of the air inlet channel (221), and the rotating plate (121) abuts against the bottom wall of the corresponding limit plate (123) when not rotating.

8. The automatic pressure-supplying lifesaving valve body for an inflatable lifesaving device according to claim 2, characterized in that: An air baffle (4) is arranged inside the valve body (1), the air baffle (4) is located above the connection port between the inflation tube (13) and the valve body (1), and the rack (32) passes through the air baffle (4).

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