CN220930275U - One-way air charging valve for inflatable life-saving device - Google Patents

Abstract

The utility model discloses a one-way inflation valve for an inflatable life-saving device, which comprises a valve body, wherein one end of the valve body is connected with a pipe joint in a screwed manner, a hexagonal nut is sleeved on the pipe joint, the outer diameter of the other end of the valve body is connected with a valve seat in a screwed manner, an outer hexagonal bolt head part and a stud part are integrally arranged on the valve seat, a layer of circular baffle plate is integrally arranged between the bolt head part and the stud part, a locking nut is connected on the stud part of the valve seat in a screwed manner, and a circular pressing plate integrally extends out of the nut body end of the locking nut. The inflatable valve is fixed on the floating raft of the inflatable life-saving device in a mechanical structure fixing mode by using the valve seat and the locking nut. The novel mechanical fixing mode is simpler than the traditional bonding fixing mode, is more environment-friendly after no chemicals such as adhesive are used, and meanwhile, the novel mechanical fixing mode does not need bonding, so that the novel mechanical fixing mode has no requirement on the material of the life raft body, can be applied, and improves the universality of the air charging valve.

Description

One-way air charging valve for inflatable life-saving device

Technical Field

The utility model belongs to the technical field of inflatable life-saving devices, and particularly relates to a one-way inflation valve for an inflatable life-saving device.

Background

The inflatable life-saving device is mainly a life raft, and is fixedly tied on a raft frame on the side of a ship at ordinary times, when the ship is in distress in accidents such as typhoons, reefs and the like in navigation, passengers can use the life raft as a raft tool without self-navigation ability for life saving to escape. The inflatable life raft is divided into two types of rigid life rafts and inflatable life rafts according to the structural form, the inflatable life rafts are provided with buoyancy by a floating tire made of rubber materials, at the moment, the life rafts are inflated into a raft with a tent in a round, oval or polygonal shape by means of mixed gas such as carbon dioxide and the like which is arranged on the life raft. Inflatable life rafts are widely used on various civil and military vessels at sea due to their simple operation, convenient movement and rapid shaping.

Chinese patent publication (bulletin) No.: CN203162259U, patent title: a one-way intake valve, which states: the one-way air inlet valve comprises a valve shell 1, a valve body 2, a connecting nut 3, an air outlet hole 4, a long groove 5, a top sheet 6, a sealing sheet 7, an inner hexagonal screw rod 8, a valve body molding piece 9, a spring 10 and the like, and is connected with a life raft body (also called as a floating tyre raft cloth) in the prior art by bonding and fixing the valve body molding piece 9 and a rubber material of the raft body into a whole, so that the life raft body is sealed. Since the material of the life raft body is the common rubber material, the valve body molding part 9 is the common rubber material, the materials are the same, the adhesion is convenient, and the sealing performance after the adhesion can be ensured.

With the rapid development of social science and technology, new materials such as silicone rubber, ethylene-propylene-diene monomer, polyurethane and nitrile rubber can replace common rubber, and the new materials are superior to common rubber materials in oxidation resistance, heat resistance, cold resistance, wear resistance and the like. The material of the valve body moulding 9 changes with the material of the liferaft body, which results in poor versatility of parts and inconvenience in production of the unidirectional inlet valve, since the material is different and the firmness and sealing properties after bonding are somewhat reduced.

Disclosure of Invention

The utility model aims to provide a one-way inflation valve for an inflatable life-saving device, which solves the problems in the background art.

In order to solve the technical problems, the utility model is realized by the following technical measures: the one-way inflation valve for the inflatable life-saving device comprises a valve body, wherein a pipe nipple is connected in an inner hole at one end of the valve body in a screwed manner, a hexagonal nut is sleeved on the pipe nipple, a valve seat is connected on the outer diameter of the other end of the valve body in a screwed manner, the valve seat is in a flat outer hexagonal bolt, an outer hexagonal bolt head and a stud part are integrally arranged on the valve seat, a round baffle plate is integrally arranged between the bolt head and the stud part, the diameter of the baffle plate is larger than the outer diameter of the stud part, a deep inner cavity is formed in the end face of the bolt head of the valve seat, an inner thread is formed in the upper half part of the inner cavity, a spring seat is arranged in the lower half part of the inner cavity, a sealing cavity is formed in the middle position of the inner cavity, a valve core hole penetrates through the center of the spring seat, and an air inlet hole is formed in the top surface of the stud part; the screw bolt part of disk seat is last threaded connection has lock nut, lock nut's nut body end an organic whole extends circular shape clamp plate, the external diameter of clamp plate is greater than lock nut's external diameter.

Compared with the prior art, the utility model has the advantages that: the inflatable valve is fixed on the floating raft of the inflatable life-saving device in a mechanical structure fixing mode by using the valve seat and the locking nut, so that the traditional mode of fixing by using an adhesive is replaced. The novel mechanical fixing mode is simpler than the traditional bonding fixing mode, is more environment-friendly after no chemicals such as adhesive are used, and meanwhile, the novel mechanical fixing mode does not need bonding, so that the novel mechanical fixing mode has no requirement on the material of the life raft body, can be applied, and improves the universality of the air charging valve.

As an improvement of the utility model, the baffle plate of the valve seat is provided with at least one circle of groove, the pressing plate of the locking nut is provided with at least one circle of convex ring, and the convex ring can be placed in the groove when being installed. The purpose of the design is selected: on the sealed face of two contacts, set up the structure that recess and bead mutually support, make the leakproofness better.

As an improvement of the utility model, the shape of the groove is trapezoid, and the shape of the convex ring is trapezoid. The purpose of the design is selected: the trapezoid shape, when being stressed, has larger pressure, so that the rubber material can deform and fill the gap.

As an improvement of the utility model, reinforcing ribs are arranged between the nut body and the pressing plate, and the number of the reinforcing ribs is six and the reinforcing ribs are uniformly distributed on the nut body. The purpose of the design is selected: the reinforcing ribs have two functions, one is used for reinforcing the integral strength of the lock nut, and the other is used as a force application point when the lock nut is screwed, so that the lock nut is not easy to slide.

As an improvement of the utility model, the sealing cavity is provided with an O-shaped ring. The purpose of the design is selected: the valve body and the valve seat are both made of metal copper materials, and after the O-shaped ring is additionally arranged, no air leakage can occur during inflation.

As an improvement of the utility model, the shape of the spring seat is in a ladder shape, and the spring seat and the valve seat are integrally formed. The purpose of the design is selected: the stepped design is to place the spring, and under normal state, the one-way valve core is sleeved in the valve core hole, the spring is pressed between the one-way valve core and the spring seat, and under the reaction force of the spring, the sealing gasket on the one-way valve core head props against the pipe joint mouth to realize the sealing of the life raft.

As an improvement of the utility model, the air inlets are uniformly distributed on the top surface of the stud part, and the number of the air inlets is six. The purpose of the design is selected: in order to make the air intake uniform and smooth, the air can be quickly introduced into the raft body of the life raft.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

Fig. 1 is a cross-sectional view of a one-way inflation valve for an inflatable life-saving apparatus according to the present utility model.

FIG. 2 is a schematic illustration of a prior art one-way inflation valve according to the present utility model.

Fig. 3 is a perspective view of a valve seat according to the present utility model.

Fig. 4 is a perspective view of a lock nut according to the present utility model.

Fig. 5 is an enlarged view of the portion a according to the present utility model.

Fig. 6 is a cross-sectional view of a valve seat according to the present utility model mated with a one-way valve cartridge.

Reference numerals illustrate: 1. a valve seat; 2. floating tire raft cloth; 3. a lock nut; 4. a one-way valve core; 5. a spring; 6. an O-ring; 7. a sealing gasket; 8. a valve body; 9. a pipe joint mouth; 10. a hexagonal nut; 11. a groove; 12. a convex ring; 13. an air inlet hole; 14. a spring seat; 15. a valve core hole; 16. a baffle; 17. a bolt head; 18. a stud portion; 19. a nut body; 20. a pressing plate; 21. reinforcing ribs; 22. sealing the cavity.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, and may be, for example, either fixed or removable; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Unless expressly stated or limited otherwise, a first feature being "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

Example 1

Referring to fig. 1-6, the one-way inflation valve for an inflatable life-saving device provided in this embodiment includes a valve body 8, a nipple 9 screwed into an inner hole at one end of the valve body 8, a hexagonal nut 10 sleeved on the nipple 9, a valve seat 1 screwed onto an outer diameter at the other end of the valve body 8, and a lock nut 3 screwed onto the valve seat 1. Inside the valve seat 1, there is a one-way valve core 4, the head of the one-way valve core 4 is provided with a sealing gasket 7, under the reaction force of the spring 5, the sealing gasket 7 on the head of the one-way valve core 4 props against the pipe joint mouth 9 to realize the sealing of the life raft.

In the embodiment of the present application, please refer to fig. 3 and 6, the valve seat 1 is a flat outer hexagonal bolt, an outer hexagonal bolt head 17 and a stud 18 are integrally provided on the outer hexagonal bolt, a circular baffle 16 is integrally provided between the bolt head 17 and the stud 18, the diameter of the baffle 16 is larger than the outer diameter of the stud 18, a deep cavity is provided on the end face of the bolt head 17 of the valve seat 1, an inner thread is provided on the upper half of the cavity, a spring seat 14 is provided on the lower half of the cavity, a sealing cavity 22 (on the inner wall of the valve seat 1) is provided in the middle of the cavity, a valve core hole 15 is penetrated in the center of the spring seat 14, an air inlet hole 13 is provided on the top surface of the stud 18, the air inlet hole 13 is communicated with the cavity, and air is filled.

In the embodiment of the present application, referring to fig. 4 and 5, a locking nut 3 is screwed on a stud portion 18 of a valve seat 1, a circular pressing plate 20 integrally extends from a nut body 19 end of the locking nut 3, and an outer diameter of the pressing plate 20 is larger than an outer diameter of the locking nut 3, that is, the locking nut 3 is formed by two parts of the nut body 19 and the pressing plate 20, and the two parts are integrally formed. Reinforcing ribs 21 are arranged between the nut body 19 and the pressing plate 20, the number of the reinforcing ribs 21 is six, and the reinforcing ribs are uniformly distributed on the nut body. The reinforcing ribs 21 have two functions, one is to strengthen the overall strength of the lock nut 3, and the other is that the reinforcing ribs 21 can be used as force application points when the lock nut 3 is rotated, so that the lock nut is not easy to slide.

In the embodiment of the utility model, two circles of grooves 11 are formed in the baffle 16 of the valve seat 1, two circles of convex rings 12 are formed in the pressing plate 20 of the locking nut 3, and when the locking nut is installed, the two convex rings 12 can be placed in the two grooves 11, so that the sealing performance is further improved.

In the embodiment of the present application, referring to fig. 5, the shape of the groove 11 is trapezoid, and the shape of the collar 12 is trapezoid. The trapezoid shape, when being stressed, has larger pressure, so that the rubber material can deform and fill the gap.

In the embodiment of the present application, referring to fig. 6, an O-ring 6 is provided on the sealing chamber 22. Because the valve body 8 and the valve seat 1 are both made of metal copper materials, the external threads on the valve body 8 are in threaded connection with the internal threads in the valve seat 1, and after the O-shaped ring 6 is additionally arranged, no air leakage occurs during inflation.

In the embodiment of the present application, referring to fig. 6, the spring seat 14 is stepped, and the spring seat 14 is integrally formed with the valve seat 1. The purpose of the design is selected: the stepped design is that in order to place the spring 5, normally the one-way valve core 4 is sleeved in the valve core hole 15, the spring 5 is pressed between the one-way valve core 4 and the spring seat 14, and under the reaction force of the spring 5, the sealing gasket 7 on the head of the one-way valve core 4 is propped against the pipe joint mouth 9, so that the sealing of the life raft is realized.

In the embodiment of the present utility model, the air inlets 13 are uniformly distributed on the top surface of the stud portion 18, and the number of the air inlets 13 is six. In order to make the air intake uniform and smooth, the air can be quickly introduced into the raft body of the life raft.

Referring to fig. 1 and 6, the one-way inflation valve for an inflatable life-saving device provided in this embodiment is installed by being connected with the one-way inflation valve itself as follows: the method comprises the steps of sleeving a hexagonal nut 10 on a pipe joint nozzle 9, screwing the pipe joint nozzle 9 in a valve body 8, putting an O-shaped ring 6 into a sealing cavity, wrapping the head of a one-way valve core 4 by a sealing gasket 7, sleeving the one-way valve core 4 with a spring 5, and putting the one-way valve core 4 into a valve core hole 15 for accommodating the one-way valve core 4. Next, the external thread is arranged on the external diameter of the other end of the valve body 8, and the external thread and the internal thread of the valve seat 1 can be mutually screwed and fixed, so that a set of one-way inflation valve is formed.

The one-way inflation valve for the inflatable life-saving device provided by the embodiment is installed with the life raft as follows: the lock nut 3 is firstly put into the life raft body (formed by encircling the floating raft cloth 2), the lock nut can be put into the life raft body when the life raft body is manufactured, the lock nut 3 can be put into a position with holes (such as a position for installing a pressure relief valve and other parts) on the life raft body, or can be hard-extruded into the position of a mounting hole for installing the one-way inflation valve (the rubber is also elastic), and then the installed one-way inflation valve is put into the mounting hole, namely the stud part 18 on the valve seat 1 is put into the mounting hole, and the baffle 16 is thicker than the stud part 18, can not pass through the floating raft cloth 2, and then the lock nut 3 is found to screw the stud part 18.

The unidirectional air charging valve for the inflatable life-saving device provided by the embodiment is characterized in that under the normal state, the unidirectional valve core 4 props against the pipe joint nozzle 9 under the reaction force of the spring 5, so that the life raft is sealed. When the life raft is inflated, the compressed gas overcomes the action of the spring 5, presses down the one-way valve core 4 to open the air passage, and when the life raft is not inflated, the one-way valve core 4 resets to prop against the pipe joint mouth 9, so that the life raft is sealed.

The utility model has the beneficial effects that: the inflatable valve is fixed on the floating raft 2 of the inflatable life-saving device in a mechanical structure fixing mode by using the valve seat 1 and the locking nut 3, and replaces the traditional mode of fixing by using an adhesive. The novel mechanical fixing mode is simpler than the traditional bonding fixing mode, is more environment-friendly after no chemicals such as adhesive are used, and meanwhile, the novel mechanical fixing mode does not need bonding, so that the novel mechanical fixing mode has no requirement on the material of the life raft body, can be applied, and improves the universality of the air charging valve.

The foregoing is illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the claims. The present utility model is not limited to the above embodiments, and the specific structure thereof is allowed to vary. All changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (7)

1. The utility model provides a one-way inflation valve that inflatable life saving equipment was used, includes valve body (8), has connect nipple (9) in the hole spiro union of valve body (8) one end, has cup jointed hexagonal nut (10), characterized by on nipple (9): the valve seat (1) is screwed on the outer diameter of the other end of the valve body (8), the valve seat (1) is a flat outer hexagon bolt, an outer hexagon bolt head (17) and a stud part (18) are integrally arranged on the valve seat, a round baffle plate (16) is integrally arranged between the bolt head (17) and the stud part (18), the diameter of the baffle plate (16) is larger than the outer diameter of the stud part (18), a deep inner cavity is formed in the end face of the bolt head (17) of the valve seat (1), an inner thread is formed in the upper half part of the inner cavity, a spring seat (14) is arranged in the lower half part of the inner cavity, a sealing cavity (22) is formed in the middle of the inner cavity, a valve core hole (15) penetrates through the center of the spring seat (14), and an air inlet hole (13) is formed in the top surface of the stud part (18); the screw bolt part (18) of the valve seat (1) is connected with a lock nut (3) in a threaded manner, a round pressing plate (20) integrally extends out of the end of a nut body (19) of the lock nut (3), and the outer diameter of the pressing plate (20) is larger than that of the lock nut (3).

2. A one-way inflation valve for an inflatable life-saving apparatus according to claim 1, wherein: at least one circle of groove (11) is formed in the baffle plate (16) of the valve seat (1), at least one circle of convex ring (12) is arranged on the pressing plate (20) of the locking nut (3), and when the locking nut is installed, the convex ring (12) can be placed into the groove (11).

3. A one-way inflation valve for an inflatable life-saving apparatus according to claim 2, wherein: the shape of the groove (11) is trapezoid, and the shape of the convex ring (12) is trapezoid.

4. A one-way inflation valve for an inflatable life-saving apparatus according to claim 1, wherein: reinforcing ribs (21) are arranged between the nut body (19) and the pressing plate (20), the number of the reinforcing ribs (21) is six, and the reinforcing ribs are uniformly distributed on the nut body.

5. A one-way inflation valve for an inflatable life-saving apparatus according to claim 1, wherein: an O-shaped ring (6) is arranged on the sealing cavity (22).

6. A one-way inflation valve for an inflatable life-saving apparatus according to claim 1, wherein: the shape of the spring seat (14) is in a step shape, and the spring seat (14) and the valve seat (1) are integrally formed.

7. A one-way inflation valve for an inflatable life-saving apparatus according to claim 1, wherein: the air inlets (13) are uniformly distributed on the top surface of the stud part (18), and the number of the air inlets (13) is six.