Built-in rotary connecting structure of inflator pump

Abstract

The utility model provides a built-in rotary connection structure of an inflator pump. The built-in rotary connection structure of the inflator pump comprises an inner-layer air film and an outer-layer air film, wherein the inner-layer air film is sleeved outside the inflator pump, and the outer-layer air film is sleeved outside the inner-layer air film; a movable connecting piece is arranged at the bottom of the inflator pump, and a fixed connecting piece communicated with the movable connecting piece and the outer-layer air film is fixedly arranged on the inner-layer air film. And the inflator pump is arranged in the inner layer air film, so that the inflator pump cannot be lost. When inflation is needed, the sealing ring is inserted into the annular sealing groove, and gas leakage is prevented while the gas outlet and the vent hole are communicated. And then the inflator pump is rotated, the fixed connecting hook and the movable connecting hook are rotationally clamped, the position of the inflator pump is fixed, and the inflator pump fixing device has the advantage of being convenient to operate. The air pump is arranged in the inner layer air film and the outer layer air film, the fixed connecting piece is in sealed butt joint with the inner layer air film through the fixing ring and the ring cover, and it is stably guaranteed that the air pump inflates air into the outer layer air film and external equipment.

Description

Technical Field

[0001] The utility model relates to an inflatable device, in particular to a built-in rotating connection structure of an inflatable pump. Background Art

[0002] An air pump is a common device that uses the rotation of a motor to generate a pressure difference and loads gas into the device to be inflated. With the development of the times, air pumps are widely used outdoors, helping people to quickly and conveniently inflate various inflatable items in outdoor environments. Common air pumps use an external structure. Users carry the air pump with them and connect the air pump to the inflation port of the device to be inflated when inflation is needed. Obviously, it is not convenient to carry an air pump with you. Even if the air pump and the device to be inflated are stored together, it is easy to cause the air pump to be lost.

[0003] Therefore, the prior art has produced a built-in structure in which the air pump is placed inside the device to be inflated, and the specific structure is roughly as follows: one is to fix the air pump to the device to be inflated. The air pump of this solution usually adopts a disposable inflation structure, which is inconvenient to replace the air pump; the other is to dock it on the inflation port through an inflation tube or a matching structure, but due to the insufficient stability of the connection, gas leakage occurs at the inflation port of the air pump and the device, which leads to a decrease in inflation efficiency. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a built-in rotating connection structure of an air pump, including an air pump and an inner air film and an outer air film arranged outside the air pump, the air pump includes a shell, a gas nozzle assembly is arranged at the bottom of the shell, the gas nozzle assembly includes a movable connecting piece arranged in the shell and a fixed connecting piece fixed on the inner air film 5, an air outlet is arranged at the center of the movable connecting piece, and a vent hole connecting the air outlet and the outer air film is arranged on the fixed connecting piece;

[0005] The movable connecting member comprises a movable ring, and a movable connecting hook is protruding from the surface of the movable ring; the fixed connecting member comprises a fixed ring, and the inner air film is sealed and connected to the circumference of the fixed ring, and the movable connecting hook and the fixed connecting hook are rotatably engaged with each other.

[0006] Furthermore, the opposite end faces of the movable ring and the fixed ring are respectively provided with an annular sealing groove and a protruding sealing ring, and the sealing ring is inserted into the annular sealing groove.

[0007] Furthermore, a ring cover is provided on a side of the fixed ring away from the movable ring, and the inner layer air film is sealed and connected to a surface of the ring cover.

[0008] Furthermore, a fastening ring is provided between the sealing ring and the annular sealing groove.

[0009] Furthermore, a battery assembly, an air pump body, and an air nozzle assembly are sequentially arranged in the shell from top to bottom. The air nozzle assembly includes an air valve seat, one end of the air valve seat is sealably docked with the air outlet end of the air pump body, so that the gas ejected from the air pump body flows into the air valve seat, and the movable connecting piece is sealably docked with the end of the air valve seat away from the air pump body, and the air outlet of the movable connecting piece is connected to the internal air cavity of the air valve seat.

[0010] Furthermore, an air pressure sensor is connected to the outer side of the air valve seat to sense the air cavity pressure in the air valve seat.

[0011] Furthermore, an exhaust port is provided on the outer air film.

[0012] Furthermore, a battery seat for accommodating the battery assembly is provided on the peripheral wall of the shell, one end of the battery seat extends to the outside of the shell and is open at the end to form a connecting portion protruding from the surface of the shell; the other end of the battery seat extends to the inner cavity of the shell to form a fixing portion for fixing the position of the battery assembly; an air guide gap is provided between the peripheral wall of the battery seat and the battery assembly, and an air guide hole connecting the air guide gap and the inner cavity of the shell is provided on the peripheral wall of the battery seat.

[0013] Furthermore, the surfaces of the inner air film and the outer air film are provided with a notch for the connecting portion to extend out, and the inner air film and the outer air film are sealed and connected at the edges of the notch.

[0014] Furthermore, the shell is composed of two radially divided half shells; the shell is provided with an annular boss at a position corresponding to the circumferential end surface of the movable ring; a clamping rib is protruding from the surface of the movable ring, and a clamping groove for the clamping rib to extend into is provided on the inner side of the annular boss.

[0015] The utility model provides a built-in rotating connection structure of an air pump, including an inner air membrane sleeved on the outside of the air pump and an outer air membrane sleeved on the outside of the inner air membrane; a movable connecting piece is provided at the bottom of the air pump, and a fixed connecting piece connecting the movable connecting piece and the outer air membrane is fixedly provided on the inner air membrane. The air pump is built into the inner air membrane, and the air pump will not be lost. When inflation is required, the sealing ring is inserted into the annular sealing groove to connect the air outlet and the air vent while preventing gas leakage. Then the air pump is rotated, the fixed connecting hook and the movable connecting hook are rotatably engaged, and the position of the air pump is fixed, which has the advantage of convenient operation.

[0016] The utility model embeds the air pump in the inner air film and the outer air film, and the fixed connecting piece is sealed and connected with the inner air film by means of a fixed ring and a ring cover, so as to stably ensure that the air pump inflates the outer air film and the external equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a built-in rotating connection structure of an air pump of the utility model;

[0018] Figure 2 It is a disassembly schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the inner air film and the outer air film without the air pump;

[0020] Figure 4 is a schematic structural diagram of the gas nozzle assembly in the embodiment;

[0021] Figure 5 It is a structural schematic diagram of a movable connecting member;

[0022] Figure 6 It is a structural schematic diagram of a fixed connection part;

[0023] Figure 7 is a schematic structural diagram of an air pump in an embodiment;

[0024] Figure 8 It is a schematic diagram of the explosion of the air pump;

[0025] Fig. 9 It is a schematic diagram of the structure of the shell;

[0026] Fig.10 It is a schematic diagram of the structure of a battery assembly;

[0027] Reference numerals:

[0028] Shell 1, battery holder 11, connecting portion 111, fixing portion 112, air guide gap 113, air guide hole 114, limiting end hole 115, connecting column 12, threaded hole 13, positioning ring 14, annular boss 15, slot 16, gland 17, fastening nut 18;

[0029] Air pump body 2;

[0030] Battery assembly 3, battery casing 31, battery board 32, control panel 33, conductive electrode sheet 34, jack 35, button 36, push switch 37, waterproof cover 38, pull ring 39;

[0031] The air nozzle assembly 4, the air valve seat 41, the movable connecting piece 42, the movable ring 421, the air outlet 422, the annular sealing groove 423, the movable connecting hook 424, the sealing cover 425, the clamping rib 426, the fixed connecting piece 43, the fixing ring 431, the vent hole 432, the sealing ring 433, the fixed connecting hook 434, the ring cover 435, the fastening ring 44, and the air pressure sensor 45;

[0032] Inner air film 5;

[0033] Outer air film 6, notch 61, pump port 62, exhaust port 63;

[0034] Equipment to be inflated 7. DETAILED DESCRIPTION

[0035] like Figures 1 to 3 The shown built-in rotating connection structure of an air pump includes an air pump and an inner air membrane 5 and an outer air membrane 6 arranged outside the air pump. The air pump includes a housing 1, including the housing 1, an air pump body 2 composed of a diaphragm pump and a driving motor, a battery assembly 3 providing power for the air pump body 2, and an air nozzle assembly 4 connected to an external device to be inflated 7. The housing 1 is a roughly cylindrical structure, and the housing 1 is provided with a battery assembly 3, an air pump body 2, and an air nozzle assembly 4 in sequence from top to bottom.

[0036] The air pump is built into the inner air membrane 5, and the outer air membrane 6 is sleeved on the outside of the inner air membrane 5. The outer air membrane 6 is connected to the part to be inflated, and the air pump fills gas into the to-be-inflated equipment 7 through the outer air membrane 6; for example, in the field of outdoor inflatable tents, the outer air membrane 6 and the air column of the inflatable tent are sleeved, and the air flow can be transmitted to the air column through the outer air membrane 6 to complete the inflation process of the air column.

[0037] After the external airflow flows into the inner cavity, it flows in through the air inlet end of the air pump body 2, and then flows out through the air outlet end of the air pump body 2. The air nozzle assembly 4 is connected to the air outlet end of the air pump body 2 to output the inflation airflow. Figure 8 As shown, the air nozzle assembly 4 is located at the bottom of the shell 1, and includes an air valve seat 41 and a movable connecting piece 42. One end of the air valve seat 41 is sealed and docked with the air pump body 2, and the interior of the air valve seat 41 is connected with the air outlet end, so that the gas ejected from the air pump body 2 flows into the air valve seat 41, and an air cavity for accommodating gas is formed inside the air valve seat 41; the movable connecting piece 42 is sealed and docked with one end of the air valve seat 41 away from the air pump body 2, and the center of the movable connecting piece 42 is provided with an air outlet 422 connected to the internal air cavity of the air valve seat 41.

[0038] The inner air film 5 is provided with a fixed connection piece 43 connected to the movable connection piece 42 . The center of the fixed connection piece 43 is connected to the air outlet 422 of the movable connection piece 42 and the outer air film 6 , respectively. The inner air film 5 and the outer circumference of the fixed connection piece 43 are sealed and connected.

[0039] In the present invention, the movable connecting member 42 and the fixed connecting member 43 adopt a rotating clamping structure. Figures 4 to 6As shown, the movable connecting member 42 includes a sealing cover 425 and a movable ring 421 protruding from the surface of the sealing cover 425, the sealing cover 425 is sealingly docked at the end of the air valve seat 41, and the air outlet 422 is located at the center of the movable ring 421; the fixed connecting member 43 includes a fixed ring 431, the inner air film 5 is sealed and connected to the circumference of the fixed ring 431 by hot pressing, and the opposite end faces of the movable ring 421 and the fixed ring 431 are respectively provided with an annular sealing groove 423 and a protruding sealing ring 433; the center of the annular sealing groove 423 is provided with an air vent 432 connected to the air outlet 422, and the sealing ring 433 is inserted into the annular sealing groove 423 to maintain the air-tight connection between the air vent 432 and the air outlet 422.

[0040] Furthermore, a fastening ring 44 is provided between the sealing ring 433 and the annular sealing groove 423 to enhance the airtight connection capability between the two.

[0041] A movable connecting hook 424 is protruding from the surface of the movable ring 421, and a fixed connecting hook 434 is protruding from the surface of the fixed ring 431. The fixed connecting member 43 is rotated to engage the movable connecting hook 424 with the fixed connecting hook 434, thereby limiting the positions of the fixed connecting member 43 and the movable connecting member 42, and connecting the air outlet 422 with the air vent 432.

[0042] A ring cover 435 is provided on one side of the fixed ring 431 away from the movable ring 421 , and the inner air film 5 is heat-pressed and sealed on the surface of the ring cover 435 , further ensuring the air tightness of the connection between the fixed connector 43 and the inner air film 5 .

[0043] Furthermore, an air pressure sensor 45 is connected to the outside of the air valve seat 41, which determines whether the inflated component is fully inflated based on the sensed air cavity pressure of the air valve seat 41, and automatically closes the air pump body when the air pressure in the air valve seat 41 reaches the target threshold.

[0044] Furthermore, the outer air film 6 is provided with an exhaust port 63, and an exhaust cover is detachably connected to the exhaust port 63. By opening the exhaust cover, the gas in the outer air film 6 and the device can be quickly released.

[0045] In this embodiment, the structure of the air pump is as follows: Figure 7 and Figure 8As shown, a battery holder 11 for accommodating the battery assembly 3 is provided on the peripheral wall of the shell 1, one end of the battery holder 11 extends outward from the shell 1 and is open at the end, forming a connecting portion 111 protruding from the surface of the shell 1; the other end of the battery holder 11 extends toward the inner cavity of the shell 1, forming a fixing portion 112 for fixing the position of the battery assembly 3; an air guide gap 113 is provided between the peripheral wall of the battery holder 11 and the battery assembly 3, and an air guide hole 114 connecting the air guide gap 113 and the inner cavity of the shell 1 is provided on the peripheral wall of the battery holder 11. The air guide gap 113 is the air flow inlet of the entire air pump. When the air pump is working, the external air flow is sucked into the battery holder 11 through the air guide gap 113, and then guided to the inner cavity of the shell 1 through the air guide hole 114.

[0046] The air pump is built into the inner air membrane 5, and the outer air membrane 6 is sleeved on the outside of the inner air membrane 5. The outer air membrane 6 is connected to the part to be inflated, and the air pump fills gas into the to-be-inflated equipment 7 through the outer air membrane 6; for example, in the field of outdoor inflatable tents, the outer air membrane 6 and the air column of the inflatable tent are sleeved, and the air flow can be transmitted to the air column through the outer air membrane 6 to complete the inflation process of the air column.

[0047] The surfaces of the inner air film 5 and the outer air film 6 are provided with a notch 61 for the connecting portion 111 to extend out, and the edges of the notch 61 of the inner air film 5 and the outer air film 6 are sealed and connected by hot pressing. After the movable connecting member 42 and the fixed connecting member 43 are connected, since the outer air film 6 is sealed and connected to the inner air film 5 at the notch 61, the external air flow can only enter the outer air film 6 and the inflatable device 7 through the connected fixed connecting member 43; the outer circumference of the inner air film 5 and the fixed connecting member 43 is also sealed and connected, which can prevent the gas between the inner air film 5 and the outer air film 6 from circulating each other, thereby ensuring the airtightness of the inflation process.

[0048] A gland 17 is also sleeved on the connection portion 111 of the battery holder 11, and the gland 17 covers the surface of the outer air film 6 located at the notch 61 to fix the position of the outer air film 6. Specifically, an external thread is arranged around the circumference of the connection portion 111, and a fastening nut 18 is threadedly mounted on the external thread, and the gland 17 is located between the fastening nut 18 and the outer air film 6. Rotating the fastening nut 18 can make it move along the connection portion 111, press tightly against the surface of the gland 17, apply a fastening force to the gland 17, and prevent the gland 17 and the outer air film 6 from moving.

[0049] like Figure 8 and Fig.10As shown, the battery assembly 3 is a lithium power battery, including a battery casing 31, a battery board 32 and a control panel 33 arranged in the battery casing 31. The energy supply of lithium power batteries has been widely used in the prior art, and can realize the power supply of electrical equipment. The battery casing 31 makes the entire battery assembly 3 form an integrated structure, which is convenient for the entire battery assembly 3 to be taken out, charged and replaced in the battery holder 11.

[0050] The battery case 31 is provided with a plurality of groups of jacks 35, and the battery holder 11 is provided with a limiting end hole 115 corresponding to the position of each group of jacks 35. The jacks 35 are correspondingly plugged into and matched with the limiting end holes 115. When the battery assembly 3 is inserted into the outer notch 61 of the battery holder 11, the limiting end holes 115 can quickly locate the position of each group of jacks 35, so that the jacks 35 are engaged with each limiting end hole 115 to fix the position of the battery case 31; in addition, the corresponding relationship between the limiting end holes 115 and the jacks 35 can prevent the battery assembly 3 from being installed incorrectly.

[0051] Furthermore, a plurality of conductive electrode sheets 34 are extended from the control panel 33 and extend into the corresponding sockets 35; the limiting end holes 115 are connected to the conductive parts electrically connected to the air pump body 2 through cables and terminals. When the socket 35 is plugged into the limiting end holes 115, the conductive electrode sheets 34 can quickly conduct electricity between the battery assembly 3 and the air pump body 2.

[0052] Furthermore, a button 36 is provided at one end of the battery assembly 3 away from the inner cavity, and the button 36 is connected to the control panel 33 via a push switch 37. The activation of the entire inflation pump is controlled by pressing the button 36.

[0053] Furthermore, a waterproof cover 38 is clamped at one end of the battery assembly 3 near the notch 61 of the battery seat 11, and the waterproof cover 38 covers the outer end surface of the battery casing 31. The waterproof cover 38 can prevent external water vapor from flowing into the battery assembly 3 through the notch 61 of the battery seat 11 and causing damage to the electrical components in the battery casing 31. A pull ring 39 is further provided on the waterproof cover 38, and the entire battery assembly 3 can be taken out of the battery seat 11 by pulling the pull ring 39.

[0054] Furthermore, the outer air film 6 and the inner air film 5 are provided with a penetrating pump port 62 on their surfaces, and the outer air film 6 and the inner air film 5 are sealed and docked at the edge of the pump port 62 by means of heat pressing. The pump port 62 is used to facilitate the placement and removal of the housing 1 in the inner air film 5, so that the air pump can be quickly replaced when a failure occurs. The pump port 62 is not connected to the notch 61, and the gland 17 presses the notch 61, so that the external airflow can completely flow into the inner cavity of the housing through the air guide gap 113 during inflation.

[0055] In order to facilitate the installation of the components in the housing 1, the housing 1 in this embodiment is composed of two radially divided half shells. The two half shells can be disassembled to conveniently install the air pump body 2 into the inner cavity. Connecting columns 12 for plug-in matching are provided at the corresponding positions of the two half shells. One set of connecting columns 12 is inserted into the other set of connecting columns 12, and the two half shells are assembled into an integral structure. The center of the connecting column 12 is provided with a threaded hole 13, and at least one set of threaded holes 13 extends out of the circumferential end face of the half shell. The threaded fasteners are installed from the end face of the half shell to fasten the position of the two half shells.

[0056] Furthermore, the inner wall of the half shell is provided with a positioning ring 14 on the outer side of the air pump body 2. The size of the positioning ring 14 is set according to the outer wall size of the diaphragm pump or the drive motor. After assembly, the air pump body 2 is clamped in the positioning ring 14 to limit the radial movement of the air pump body 2. At the same time, due to the different radial dimensions of the air pump body 2, a step surface will be formed at the location where the size changes. Part of the positioning ring 14 is arranged on the step surface, which limits the radial movement of the air pump body 2 while limiting its axial movement, thereby maintaining the stability of the air pump body 2 in the housing 1.

[0057] Likewise, this embodiment is also provided with a structure for limiting the position of the movable connecting member 42. Figure 4 and Fig. 9 As shown, the shell 1 is provided with an annular boss 15 at a position corresponding to the circumferential end surface of the movable ring 421; a clamping rib 426 is protruding from the surface of the movable ring 421, and a clamping groove 16 for the clamping rib 426 to extend into is provided on the inner side of the annular boss 15, and the position of the movable connecting member 42 is further limited by the cooperation between the clamping rib 426 and the clamping groove 16.

[0058] The working process of this embodiment is as follows: the air pump body 2 and the air nozzle assembly 4 are assembled in the housing 1 to form a whole; the assembled housing 1 is installed in the self-placed pump port 62, the connecting portion 111 of the battery holder 11 extends out of the notch 61 of the outer air film 6, and the movable connecting member 42 and the fixed connecting member 43 on the inner air film 5 are rotated and docked, so that the housing 1 can be built into the inner air film 5, and a gas flow path is formed in sequence through the outside, the air guide gap 113, the air guide hole 114, the air pump body 2, the movable connecting member 42, the fixed connecting member 43, the outer air film 6, and the inflatable device 7. Then the battery assembly 3 is installed in the battery holder 11, and the fastening nut 18 and the pressure cap 17 are tightened to fix the position of the housing 1 to prevent the battery holder 11 from being separated from the notch 61 of the outer air film 6. When the air pump fails, it is only necessary to separate the movable connecting member 42 and the fixed connecting member 43 and then take the housing 1 out of the pump port 62 to replace the air pump without destroying the outer air membrane 6 and the inner air membrane 5.

[0059] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A built-in rotating connection structure of an air pump, characterized in that: The invention comprises an air pump and an inner air membrane (5) and an outer air membrane (6) arranged outside the air pump, wherein the air pump comprises a shell (1), a gas nozzle assembly (4) is arranged at the bottom of the shell (1), the gas nozzle assembly (4) comprises a movable connecting member (42) arranged inside the shell (1) and a fixed connecting member (43) fixed on the inner air membrane (5), an air outlet (422) is arranged at the center of the movable connecting member (42), and a vent hole (432) is arranged on the fixed connecting member (43) for connecting the air outlet (422) and the outer air membrane (6); The movable connecting member (42) comprises a movable ring (421), and a movable connecting hook (424) is protruding from the surface of the movable ring (421); the fixed connecting member (43) comprises a fixed ring (431), and the inner layer air film (5) is sealed and connected to the circumference of the fixed ring (431), and the movable connecting hook (424) and the fixed connecting hook (434) are rotatably engaged with each other.

2. The built-in rotating connection structure of an air pump according to claim 1, characterized in that: An annular sealing groove (423) and a protruding sealing ring (433) are respectively provided on the opposite end surfaces of the movable ring (421) and the fixed ring (431), and the sealing ring (433) is inserted into the annular sealing groove (423).

3. The built-in rotating connection structure of an air pump according to claim 2, characterized in that: A ring cover (435) is provided on the side of the fixed ring (431) away from the movable ring (421), and the inner layer air film (5) is sealingly connected to the surface of the ring cover (435).

4. The built-in rotating connection structure of an air pump according to claim 2, characterized in that: A fastening ring (44) is provided between the sealing ring (433) and the annular sealing groove (423).

5. The built-in rotating connection structure of an air pump according to claim 1, characterized in that: The housing (1) is provided with a battery assembly (3), an air pump body (2), and an air nozzle assembly (4) in order from top to bottom. The air nozzle assembly (4) includes an air valve seat (41). One end of the air valve seat (41) is sealed and docked with the air outlet end of the air pump body (2), so that the gas ejected from the air pump body (2) flows into the air valve seat (41). The movable connecting member (42) is sealed and docked with the end of the air valve seat (41) away from the air pump body (2), and the air outlet (422) of the movable connecting member (42) is connected to the internal air cavity of the air valve seat (41).

6. The built-in rotating connection structure of an air pump according to claim 5, characterized in that: An air pressure sensor (45) is connected to the outer side of the air valve seat (41) to sense the air cavity pressure in the air valve seat (41).

7. The built-in rotating connection structure of an air pump according to claim 1, characterized in that: The outer air membrane (6) is provided with an exhaust port (63).

8. The built-in rotating connection structure of an air pump according to claim 5, characterized in that: A battery seat (11) for accommodating a battery assembly (3) is provided on the peripheral wall of the shell (1); one end of the battery seat (11) extends outward from the shell (1) and is open at the end, forming a connecting portion (111) protruding from the surface of the shell (1); the other end of the battery seat (11) extends toward the inner cavity of the shell (1) to form a fixing portion (112) for fixing the position of the battery assembly (3); an air guide gap (113) is provided between the peripheral wall of the battery seat (11) and the battery assembly (3), and an air guide hole (114) connecting the air guide gap (113) and the inner cavity of the shell (1) is provided on the peripheral wall of the battery seat (11).

9. The built-in rotating connection structure of an air pump according to claim 8, characterized in that: The surfaces of the inner air membrane (5) and the outer air membrane (6) are provided with a notch (61) for the connecting portion (111) to extend out, and the edges of the notch (61) of the inner air membrane (5) and the outer air membrane (6) are sealed and connected.

10. The built-in rotating connection structure of an air pump according to claim 1, characterized in that: The shell (1) is composed of two radially divided half shells; the shell (1) is provided with an annular boss (15) at a position corresponding to the circumferential end surface of the movable ring (421); a clamping rib (426) is protruding from the surface of the movable ring (421), and a clamping groove (16) is provided on the inner side of the annular boss (15) for the clamping rib (426) to extend into.

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