Hand-operated direction valve for partition of air mattress

Abstract

The manual reversing valve comprises a valve seat, a valve element, a valve element pressing plate and a manual knob, a connecting column is arranged at the end, extending out of the valve seat and the valve element pressing plate, of the valve element, a connecting column mounting hole for fixing the connecting column is formed in the manual knob, and an air inlet pipe and an air outlet pipe which are communicated with the valve element are arranged on the side wall of the valve seat. An air supply pipe communicated with the valve element is arranged at the end of the valve seat, a vent hole communicated with the air inlet pipe or the air outlet pipe in a one-way mode is formed in the side wall of the valve element, a vent channel communicated with the vent hole is formed in the valve element, and a through hole communicated with the vent channel and the air supply pipe is formed in the other end, away from the connecting column, of the valve element. The valve seat, the valve element and the knob are arranged, the vent hole is formed in the side wall of the valve element, the top of the valve element is communicated with the air supply pipe, the valve element is controlled to rotate through the manual knob, the vent hole is controlled to be communicated with the air inlet pipe or the air outlet pipe in a one-way mode, and therefore the functions of valve opening air bag air inlet and valve closing air inlet separation air bag independent air outlet are achieved, the structure is simple, operation is convenient, and cost is low.

Description

Technical Field

[0001] The utility model belongs to a device for preventing and treating bedsores or helping patients lie prone or turn over, such as the technical field of special mattresses for this purpose, and specifically relates to a manual reversing valve for air mattress partitioning. Background Art

[0002] Technology is changing with each passing day. When people suffer from diseases or injuries, they often need to go to hospitals or related medical institutions for treatment. However, if they suffer from more serious diseases or injuries, they must stay in the hospital for a period of time to facilitate medical treatment or observation. In this way, when patients are hospitalized for treatment or observation, they will lie on the bed for a long time to facilitate rest and treatment. However, since the common mattresses cannot provide appropriate support according to different parts of the human body, some people now use air cushions. The air cushions are filled with gas inside, and the pressure generated by the air fluid provides users with more appropriate support.

[0003] The applicant applied for a utility model patent in 2020, the patent application number is 2020208176629, and the patent name is: Novel anti-bedsore air cushion device, which includes a U-shaped mattress, a receiving groove is provided on the U-shaped mattress, and a turning pad, a suspension pad and an alternating inflatable pad are stacked in the receiving groove, a pipe hole is provided on the U-shaped mattress, and an air tube bundle for inflating the turning pad, the suspension pad and the alternating inflatable pad is provided in the pipe hole, a right air bag and a left air bag are provided in the turning pad, and vertical air bags are evenly distributed in the suspension pad. Transverse air bags I, transverse air bags II and transverse air bags III are arranged at intervals in the alternating inflatable pad. A U-shaped mattress is provided, and a turning pad, a suspension pad and an alternating inflatable pad are stacked in sequence in the U-shaped mattress, and transverse air bags I, transverse air bags II and transverse air bags III are arranged in sequence in the alternating inflatable pad, so that the control box can be used to control the transverse air bags I, transverse air bags II and transverse air bags III respectively. Inflation makes it convenient to inflate and support various parts of the bedridden person separately to avoid the formation of bedsores. It is also beneficial for the patient to carry out rehabilitation activities in various parts of the body under the action of the airbag, promote blood circulation, and improve the efficiency of the air cushion.

[0004] In actual operation, multiple airbags share one air supply pipeline, and multiple airbags take in and out air at the same time. However, in some patients, the air supply airbag happens to be at the injured part, so it is necessary to stop supplying air to the airbag to prevent the airbag from working. In this case, a manual reversing valve is required to shut off the local airbag position to ensure that the airbag is in a closed working state and does not interfere with the normal operation of other airbags. Summary of the invention

[0005] In view of this, in order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide a manual reversing valve for air mattress partitions, which is installed on the air supply pipeline and is arranged one-to-one with the air bags. A valve seat, a valve core and a knob are arranged, and a vent hole is arranged on the side wall of the valve core, and the top of the valve core is connected with the air supply pipe. The manual knob is used to control the rotation of the valve core to control the vent hole to be connected with the air inlet pipe or the air discharge pipe in one direction, thereby realizing the function of opening the valve to let air into the air bag and closing the valve to let air into the partition air bag and deflate it separately. The utility model has a simple structure, is easy to operate and has low cost.

[0006] In order to achieve the above-mentioned purpose, the utility model discloses a manual reversing valve for air mattress partition, comprising a valve seat installed on the air mattress, a valve core rotating in the valve seat, a valve core pressure plate connected to the valve seat and a manual knob, wherein one end of the valve core extending from the valve seat and the valve core pressure plate is provided with a connecting column, the manual knob is provided with a connecting column mounting hole for fixing the connecting column, an air inlet pipe and an air discharge pipe which are connected to the valve core and whose connecting positions are at the same height are provided on the side wall of the valve seat, an air supply pipe which is connected to the valve core and whose connecting positions are at the same height is provided on the end of the valve seat, a vent which is unidirectionally connected to the air inlet pipe or the air discharge pipe when the valve core rotates is provided on the side wall of the valve core, a vent which is connected to the vent and has an air passage connected to the vent, a through hole which is connected to the air passage and has an air supply pipe which is unidirectionally connected to the air passage and has an air passage when the valve core rotates is provided on the side wall of the valve core, an upper sealing groove and a lower sealing groove which are respectively provided on the upper and lower ends of the vent on the outer wall of the valve core, and a vent sealing groove which is provided around the vent.

[0007] Furthermore, a Y-shaped sealing ring is arranged in the upper sealing groove and the lower sealing groove, and an O-shaped sealing ring is arranged in the vent hole sealing groove.

[0008] Furthermore, the air intake pipe and the air exhaust pipe are symmetrically arranged.

[0009] Furthermore, bolt connection columns are extended from the walls of the air inlet pipe and the air release pipe toward one side of the valve core pressure plate, and bolt installation countersunk holes corresponding to the bolt connection columns are arranged on both sides of the valve core pressure plate.

[0010] Furthermore, the other side of the valve seat away from the air release pipe is connected to a section pipe, the other end of the section pipe is connected to a section right-angle joint, the air intake pipe is connected to the section right-angle joint, and bolt connecting columns I are extended from the wall of the section pipe and the air release pipe toward one side of the valve core pressure plate, and bolt mounting countersunk holes I corresponding to the bolt connecting columns I are provided on both sides of the valve core pressure plate.

[0011] Furthermore, a limit block is extended outwardly from the connecting column near the valve core pressure plate, and a limit groove is provided on the valve core pressure plate for limiting the position of the limit block when it rotates.

[0012] Furthermore, the limiting groove is configured as a semicircular structure.

[0013] Furthermore, a mounting plate for mounting the valve seat on the side wall of the air mattress is arranged between the valve core pressure plate and the manual knob, and bolt connection holes are evenly distributed around the connecting column on the valve core pressure plate, and bolt mounting countersunk holes I are arranged on the mounting plate in one-to-one correspondence with the bolt connection holes.

[0014] Furthermore, the manual knob is provided with a receiving groove for receiving the mounting plate, and the connecting column mounting hole is provided on the bottom of the receiving groove.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model discloses a manual reversing valve for air mattress partition, which is installed on the air supply pipeline and is arranged one-to-one with the air bags. By arranging the valve seat, the valve core and the knob, a vent hole is arranged on the side wall of the valve core, and the top of the valve core is connected with the air supply pipe. The manual knob is used to control the rotation of the valve core to control the vent hole to be connected with the air inlet pipe or the air discharge pipe in one direction, so as to realize the function of opening the valve to let air into the air bag and closing the valve to let air into the partition air bag and release air separately. The utility model has the advantages of simple structure, convenient operation and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the purpose, technical solution and beneficial effects of the utility model clearer, the utility model provides the following drawings for explanation:

[0018] Figure 1 This is a diagram of the installation state of a manual reversing valve for air mattress partition according to the utility model;

[0019] Figure 2 This is a diagram of the gas circuit connection state of a manual reversing valve used for air mattress partitioning according to the utility model;

[0020] Figure 3 This is a cross-sectional view of a manual reversing valve for air mattress partitioning according to the utility model;

[0021] Figure 4 It is an exploded schematic diagram of a manual reversing valve for air mattress partition of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of a valve seat in a manual reversing valve for air mattress partitioning according to the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of a valve core in a manual reversing valve for air mattress partitioning according to the utility model;

[0024] Figure 7 This is a schematic diagram of the installation of a valve core pressure plate in a manual reversing valve for air mattress partitioning according to the utility model;

[0025] Figure 8 The utility model is a schematic diagram of the connection between a manual knob and a mounting plate in a manual reversing valve for air mattress partition.

[0026] Figure markings: 1-air mattress; 2-manual reversing valve; 3-air supply pipeline; 4-air bag; 5-valve seat; 6-valve core; 7-valve core pressure plate; 8-manual knob; 9-mounting plate; 10-connecting column; 11-vent pipe; 12-air supply pipe; 13-intake pipe; 14-vent channel; 15-vent hole; 16-upper sealing groove; 17-lower sealing groove; 18-vent hole sealing groove; 19-limiting block; 20-bolt connecting column; 21-transition pipe; 22-transition right-angle joint; 23-limiting groove; 24-bolt mounting countersunk hole; 25-bolt connecting hole; 26-connecting column mounting hole; 27-bolt mounting countersunk hole I; 28-accommodating groove. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings.

[0028] like Figure 1-Figure 8 The utility model is a schematic diagram of the structure of a manual reversing valve for air mattress partition; the utility model is a manual reversing valve for air mattress partition, comprising a valve seat 5 installed on the air mattress 1, a valve core 6 rotating in the valve seat 5, a valve core pressing plate 7 connected to the valve seat 5 and a manual knob 8, a connecting column 10 is provided at one end of the valve core 6 extending from the valve seat 5 and the valve core pressing plate 7, a connecting column mounting hole 26 for fixing the connecting column 10 is provided on the manual knob 8, and an air inlet 26 connected to the valve core 6 and at the same height as the valve seat 5 is provided on the side wall of the valve seat 5. Tube 13 and exhaust pipe 11, an air supply pipe 12 connected with the valve core 6 is arranged at the end of the valve seat 5, a vent hole 15 is arranged on the side wall of the valve core 6 which is unidirectionally connected with the intake pipe 13 or the exhaust pipe 11 when it rotates, a vent channel 14 connected with the vent hole 15 is arranged in the valve core 6, a through hole connecting the vent channel 14 and the air supply pipe 12 is arranged at the other end of the valve core 6 away from the connecting column 10, an upper sealing groove 16 and a lower sealing groove 17 are respectively arranged at the upper and lower ends of the vent hole 15 on the outer wall of the valve core 6, and a vent hole sealing groove 18 is arranged around the vent hole 15.

[0029] In this embodiment, a manual reversing valve 2 is installed on the air supply pipeline 3 of the air mattress 1, and is arranged one-to-one with the airbag 4. A valve seat 5, a valve core 6 and a manual knob 8 are arranged, and a vent hole 15 is arranged on the side wall of the valve core 6, and its top is connected with the air supply pipe 12. The manual knob 8 is used to control the rotation of the valve core 6 to control the vent hole 15 to be connected with the air intake pipe 13 or the exhaust pipe 11 in one direction, thereby realizing the functions of opening the valve to intake air to the airbag and closing the valve to intake air to isolate the airbag from exhausting separately. The structure is simple, the operation is convenient and the cost is low.

[0030] During the implementation of this embodiment, taking the alternating airbag as an example, when its controller supplies air, two of the three air intake pipes among the air intake pipes A, B and C are simultaneously supplied with air, and the other air intake pipe stops supplying air.

[0031] 1) The manual reversing valve 2 is fully opened, and all the alternating airbags can work normally to achieve the effect of alternating air intake.

[0032] 2) The manual reversing valve 2 is partially opened, and the part of the alternating airbag connected to the opened manual reversing valve can work normally to achieve the alternating air intake effect. The other part of the alternating airbag connected to the unopened manual reversing valve is in a deflated state, and the air intake is cut off.

[0033] In a preferred embodiment, Y-shaped sealing rings are provided in the upper sealing groove 16 and the lower sealing groove 18, and an O-shaped sealing ring is provided in the vent sealing groove 18. The structure of this embodiment uses a Y-shaped sealing ring to improve the sealing effect when the valve core rotates, and is conducive to realizing the air path sealing reversal.

[0034] In a preferred embodiment, the air intake pipe 13 and the air discharge pipe 11 are symmetrically arranged. In this structure, the air intake pipe 13 and the air discharge pipe 11 are symmetrically arranged on both sides of the valve seat 5. When reversing, the manual knob 8 can be manually controlled to rotate 180 degrees, which is convenient for operation.

[0035] In a preferred embodiment, bolt connection columns 20 are extended from the walls of the intake pipe 13 and the exhaust pipe 11 toward one side of the valve core pressure plate 7, and bolt installation countersunk holes 24 corresponding to the bolt connection columns 20 are provided on both sides of the valve core pressure plate 7. The structure of this embodiment facilitates the installation of the valve core pressure plate 7 and the valve core seal on the valve seat, wherein the valve seat 5, the intake pipe 13, the exhaust pipe 11 and the bolt connection columns 20 are an integral injection molding structure made of hard plastic, which is easy to process and low in cost.

[0036] In a preferred embodiment, the other side of the valve seat 5 away from the air release pipe 11 is connected to a section pipe 21, the other end of the section pipe is connected to a section right-angle joint 22, the air inlet pipe 13 is connected to the section right-angle joint 22, and bolt connecting columns I are extended from the section pipe 21 and the air release pipe 11 to one side of the valve core pressure plate on the pipe wall, and bolt mounting countersunk holes I corresponding to the bolt connecting columns I are provided on both sides of the valve core pressure plate. The structure of this embodiment utilizes the section pipe 21 and the section right-angle joint 22 to facilitate the parallel arrangement of the goal pipe 13 and the air supply pipe 12, so as to facilitate the connection of the goal pipe 13, the air supply pipe 12 and the air supply pipeline 3, and facilitate the connection operation.

[0037] In a preferred embodiment, a limit block 19 extends outward from the connecting column 10 near the valve core pressure plate 7, and a limit groove 23 is provided on the valve core pressure plate for limiting the limit block 19 when it rotates. The limit groove 19 is set to a semicircular structure. In this embodiment, the structure uses the limit groove 23 to limit the limit block 19 when it rotates, and controls the manual rotation range of the manual knob 8 to 180 degrees, which is convenient for operation.

[0038] In a preferred embodiment, a mounting plate 9 for mounting the valve seat on the side wall of the air mattress is provided between the valve core pressure plate 7 and the manual knob 8, bolt connection holes 25 are evenly distributed around the connecting column on the valve core pressure plate 7, and bolt mounting countersunk holes 127 corresponding to the bolt connection holes are provided on the mounting plate. In this embodiment, the structure adopts a bolt connection structure between the mounting plate 9 and the valve core pressure plate 7, so that the valve seat can be fixedly mounted on the fabric at the outer wall of the mattress of the air mattress 1, and the fabric can be clamped between the mounting plate 9 and the valve core pressure plate 7 to achieve the installation of the manual reversing valve, and a receiving groove 28 for accommodating the mounting plate 9 is provided on the manual knob 8, and the connecting column mounting hole 26 is provided on the bottom of the receiving groove 28. After the manual directional valve 2 is installed in place, the manual knob 8 can be clamped on the connecting column 10 and the mounting plate 9 at the same time to achieve the installation of the manual knob 8, which is easy to operate.

[0039] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. A manual reversing valve for air mattress partition, characterized in that: The vent pipe is an air intake pipe which is connected to the vent pipe at the bottom of the vent pipe and the vent pipe is an air intake pipe which is connected to the vent pipe at the bottom of the vent pipe.

2. The manual reversing valve for air mattress partition according to claim 1, characterized in that: Y-shaped sealing rings are arranged in the upper sealing groove and the lower sealing groove, and an O-shaped sealing ring is arranged in the vent hole sealing groove.

3. The manual reversing valve for air mattress partition according to claim 1, characterized in that: The air intake pipe and the air exhaust pipe are symmetrically arranged.

4. The manual reversing valve for air mattress partition according to any one of claims 1 to 3, characterized in that: Bolt connection columns are extended from the pipe walls of the air inlet pipe and the air release pipe toward one side of the valve core pressure plate, and bolt installation countersunk holes corresponding to the bolt connection columns are arranged on both sides of the valve core pressure plate.

5. The manual reversing valve for air mattress partition according to any one of claims 1 to 3, characterized in that: The other side of the valve seat away from the air leakage pipe is connected to a section pipe, the other end of the section pipe is connected to a section right-angle joint, the air intake pipe is connected to the section right-angle joint, and bolt connection columns I are extended from the wall of the section pipe and the air leakage pipe toward one side of the valve core pressure plate, and bolt installation countersunk holes I corresponding to the bolt connection columns I are arranged on both sides of the valve core pressure plate.

6. The manual reversing valve for air mattress partition according to claim 1, characterized in that: A limiting block extends outwardly from the connecting column near the valve core pressure plate, and a limiting groove for limiting the position of the limiting block when it rotates is arranged on the valve core pressure plate.

7. The manual reversing valve for air mattress partition according to claim 6, characterized in that: The limiting groove is arranged as a semicircular structure.

8. The manual reversing valve for air mattress partition according to claim 1, characterized in that: A mounting plate for mounting the valve seat on the side wall of the air mattress is arranged between the valve core pressure plate and the manual knob, and bolt connection holes are evenly distributed around the connecting column on the valve core pressure plate, and bolt mounting countersunk holes I are arranged on the mounting plate in a one-to-one correspondence with the bolt connection holes.

9. The manual reversing valve for air mattress partition according to claim 1, characterized in that: The manual knob is provided with a receiving groove for receiving the mounting plate, and the connecting column mounting hole is arranged on the bottom of the receiving groove.

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