Air pump assembly, controller using air pump assembly, and bed using controller

Abstract

An air pump assembly, a controller using the air pump assembly, and a bed using the controller. The air pump assembly comprises a pump housing internally provided with an assembly cavity and a pump body (1) arranged in the assembly cavity. The pump housing comprises a housing body (2) and a cover body (3) which are sealedly connected to each other. An air suction nozzle (4) communicated with the assembly cavity and an inflation nozzle (5) communicated with an air outlet of the pump body (1) are provided on the cover body (3). The pump body (1) obtains an air source through the air suction nozzle (4) and compresses the air source to form a high-pressure airflow deflated through the inflation nozzle (5). The air pressure in a target space can be adjusted by means of switchable communication between the target space and the air suction nozzle (4) or the inflation nozzle (5). The target space is an air bag provided on the bed, the assembly cavity sealed with respect to the external space is provided in the pump housing, and the air suction nozzle (4) and the inflation nozzle (5) which can be connected to the air bag in a switching manner and can deflate and inflate the air bag are provided on the pump housing, thereby ensuring the inflation and deflation efficiency of the air bag, and improving the air pressure adjustment precision of the air bag, improving the use experience.

Description

An air pump assembly, a controller using the air pump assembly, and a bed using the controller Technical Field

[0001] The present invention relates to the field of bedding, and in particular to an air pump assembly, a controller using the air pump assembly, and a bed using the controller. Background Art

[0002] Existing mattresses include a cushion body and a controller disposed within the cushion body. The controller includes an air pump assembly and a solenoid valve assembly. The high-pressure airflow generated by the air pump assembly is diverted by the solenoid valve assembly to each air cell. The hardness of the cushion body is adjusted by adjusting the air pressure within the air cell. The existing air pump assembly includes a pump housing and a pump body disposed within the pump housing. During use, the pump body inflates the air cells by drawing air from the outside world, increasing the air pressure and increasing the hardness of the air cells. When exhaust is required, the air cells are exhausted through the air pressure difference between the air cells and the outside world. Since the air pressure difference between the air cells and the outside world gradually decreases as exhaust is implemented, this not only reduces the exhaust efficiency of the air cells, affecting the speed of adjusting the hardness of the air cells, but also makes it more difficult to accurately control the air pressure after exhaust, affecting the accuracy of air cell hardness adjustment and the user experience. Summary of the Invention

[0003] In order to address the deficiencies of the prior art, the present invention provides an air pump assembly, a controller using the air pump assembly, and a bed using the controller. An assembly cavity sealed from the external space is provided in the pump housing, and an exhaust nozzle and an inflation nozzle that can be switchably connected to the airbag and can exhaust and inflate the airbag are provided on the pump housing. This not only ensures the inflation and deflation efficiency of the airbag, but also improves the air pressure regulation accuracy of the airbag, thereby enhancing the user experience.

[0004] The present invention is implemented in the following manner: an air pump assembly comprises a pump housing with an assembly cavity therein and a pump body arranged in the assembly cavity, the pump housing comprises a shell and a cover body which are sealed and connected, the cover body is provided with an air extraction nozzle connected to the assembly cavity and an inflation nozzle connected to the air outlet of the pump body, the pump body obtains an air source through the air extraction nozzle and compresses it to form a high-pressure airflow which is discharged through the inflation nozzle, and the target space is switched to be connected with the air extraction nozzle or the inflation nozzle to achieve air pressure regulation. The target space is an air bag arranged on a bed, an assembly cavity which is sealed from the external space is provided in the pump housing, and an air extraction nozzle and an inflation nozzle which can be switched to be connected with the air bag and can exhaust and inflate the air bag are provided on the pump housing, the air pump assembly extracts air from the air bag through the air extraction nozzle, so that the air pressure in the air bag drops quickly and accurately, and delivers air to the air bag through the inflation nozzle, so that the air pressure in the air bag rises quickly and accurately, which not only ensures the efficiency of air bag inflation and deflation, but also improves the air pressure regulation accuracy of the air bag, thereby improving the user experience.

[0005] Preferably, the housing is cylindrical, with an assembly slot having an open end face provided therein. A sealing ring is provided around the slot opening of the assembly slot. The cover is fitted over the slot opening and tightly holds the sealing ring, thereby providing a sealed connection between the cover and the housing. The cylindrical housing facilitates both plug-in and assembly of the pump body and the sealing of the cover. The sealing ring is clamped between the slot opening and the cover opening, ensuring a sealed connection between the cover and the housing. This in turn ensures that the assembly chamber is connected to the outside world only through the exhaust nozzle, effectively improving the exhaust efficiency of the exhaust nozzle.

[0006] Preferably, an annular embedding groove is provided around the periphery of the notch, the sealing ring being embedded in the embedding groove, and a convex ring is provided around the periphery of the end surface of the cover body facing the housing, the convex ring being inserted into the embedding groove and tightly clamping the sealing ring. The convex ring is embedded in the embedding groove along the axis of the cover body, thereby improving the sealing effect by increasing the contact area between the convex ring and the embedding groove, clamping and positioning the sealing ring to ensure sealing reliability, and radially limiting the cover body and the housing to ensure that the cover body completely seals the notch of the assembly groove.

[0007] Preferably, the cross-sectional profiles of the embedding groove and the convex ring are both square, and the width of the embedding groove matches the width of the convex ring so that the groove wall fits and contacts the side wall of the convex ring. The convex ring is inserted into the embedding groove so that the side wall of the convex ring matches and contacts the side wall of the embedding groove, thereby improving the sealing reliability.

[0008] Preferably, the height of the raised ring is less than the depth of the groove, and the raised ring is fully inserted into the groove, so that the periphery of the cover body and the periphery of the groove opening are tightly fitted. Fully inserting the raised ring into the groove not only ensures that the sealing ring is tightly clamped by both, but also ensures that the periphery of the cover body and the periphery of the assembly groove opening are tightly fitted, thereby improving sealing reliability by increasing the contact area between the cover body and the housing.

[0009] Preferably, the pump body is suspended and fixed in the assembly cavity through a vibration-damping assembly. The vibration-damping assembly includes a plurality of screws disposed in the assembly cavity and a vibration-damping member spanning between the screw and the pump body. A screw hole is provided on the wall of the assembly groove away from the notch, and a through-hole is provided on the cover body. The screw passes through the sealing ring, the through-hole and the vibration-damping member and is then screwed and locked with the corresponding screw hole to seal the through-hole. The vibration-damping member not only fixes and positions the pump body, but also uses its own elastic deformation to offset the vibration generated by the operation of the pump body, thereby reducing the noise of the air pump assembly and reducing the impact on the user's sleep. The screw passes through the cover body and is screwed and locked with the screw hole, which not only pulls and positions the vibration-damping member, but also limits the cover body, ensuring that the cover body can cooperate with the shell to clamp the sealing ring.

[0010] Preferably, a retaining ring is provided on the end of the screw exposed from the cover, and the sealing ring is sleeved over the section of the screw located between the retaining ring and the cover. Once installed, the retaining ring and the cover tightly clamp the sealing ring. The retaining ring not only forces the cover to fit tightly against the housing and clamp the sealing ring, but also forces the sealing ring to fit tightly against the cover, thereby sealing the perforation.

[0011] Preferably, the vibration damper comprises a first connecting portion through which the screw passes, a second connecting portion that is sleeved and fixed to the pump body, and a vibration damper portion that spans between the first and second connecting portions. The vibration damper portion offsets vibrations generated by the pump body through its own deformation, thereby reducing noise generated by the vibration of the housing.

[0012] Preferably, an air outlet pipe is provided within the assembly chamber, one end of the air outlet pipe communicating with the air outlet of the pump body and the other end communicating with the inflation nozzle, thereby isolating the inflation nozzle from the assembly chamber. High-pressure airflow generated by the pump body is delivered to the inflation nozzle through the air outlet pipe, where it can be delivered to a target space through the inflation nozzle to inflate the airbag, and can also be discharged to the outside space through the inflation nozzle to deflate the airbag.

[0013] Preferably, the air inlet of the pump body is exposed within the assembly chamber, so that the air inlet obtains an air source for forming a high-pressure airflow through the air extraction nozzle. The pump body extracts air from the assembly chamber through the air inlet, causing the assembly chamber to reduce air pressure and replenish the air source through the air extraction nozzle. The air extraction nozzle can be used to extract air from the target space to deflate the airbag, and can also be used to extract air from the external space to inflate the airbag.

[0014] A controller includes a housing with a mounting cavity, and a solenoid valve assembly, an air pump assembly, and a circuit board disposed within the mounting cavity. The air pump assembly and the solenoid valve assembly are suspended on a suspension frame via a vibration-damping strap, and the suspension frame is attached to the bottom wall of the mounting cavity via a silicone foot pad. The vibration-damping strap reduces vibrations in the air pump assembly and the solenoid valve assembly, preventing noise generated by their operation from affecting a user's sleep.

[0015] Preferably, the controller is provided with a piping assembly comprising a noise reduction box, an internal tube spanning the air pump assembly and the solenoid valve assembly, and an external tube connecting the solenoid valve assembly to an external target space. The noise reduction box is connected in series to the internal tube or the external tube. The noise reduction box can reduce the noise of airflow through the piping assembly, thereby reducing the operating noise of the control box and minimizing the impact on the user's sleep.

[0016] Preferably, the suction nozzle and the inflation nozzle are switchedly connected to the target space via a solenoid valve assembly. The air pump assembly is connected to the airbag via the solenoid valve assembly. The solenoid valve assembly can switch between the inflation nozzle and the airbag, and between the suction nozzle and the airbag, by opening and closing each unit valve therein, thereby achieving rapid inflation and deflation of the airbag.

[0017] A bed includes a cushion body, the cushion body comprising a comfort layer, an adjustment layer, and a spring layer arranged sequentially from top to bottom. The adjustment layer comprises a front sponge section, a middle adjustment section, and a rear sponge section arranged sequentially from front to back. The middle adjustment section is provided with an airbag with adjustable hardness and softness, and the rear sponge section is provided with a controller for controlling the hardness of the airbag, the controller being connected to the airbag via an air pipe. Placing the controller within the cushion body effectively shortens the distance between the controller and the middle adjustment section, facilitating piping layout. A multi-stage vibration damping structure is provided to prevent vibrations generated by the operation of the air pump assembly and the solenoid valve assembly from being transmitted through the outer casing to the cushion body, thereby ensuring a better sleeping experience for the user.

[0018] The beneficial effects of the present invention are as follows: the target space is an airbag arranged on the bed, an assembly cavity sealed from the external space is arranged in the pump housing, and an exhaust nozzle and an inflation nozzle which can be switchably connected to the airbag and can exhaust and inflate the airbag are arranged on the pump housing. The air pump assembly extracts the air in the airbag through the exhaust nozzle, so that the air pressure in the airbag drops quickly and accurately, and supplies air to the airbag through the inflation nozzle, so that the air pressure in the airbag rises quickly and accurately, which not only ensures the efficiency of inflation and deflation of the airbag, but also improves the air pressure regulation accuracy of the airbag, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG1 is a schematic cross-sectional view of the air pump assembly according to Example 1;

[0020] FIG2 is a partial cross-sectional structural schematic diagram of the air pump assembly according to Example 1;

[0021] FIG3 is a schematic diagram of the disassembled structure of the air pump assembly according to Example 1;

[0022] FIG4 is a schematic diagram of the air circuit structure of the air pump assembly according to Example 1;

[0023] FIG5 is a schematic diagram of the assembly structure of the pump body and the vibration damping assembly according to the first embodiment;

[0024] FIG6 is a partial cross-sectional structural diagram of the controller according to the second embodiment;

[0025] FIG7 is a schematic diagram of the disassembled structure of the pad body according to the third embodiment;

[0026] In the figure: 1. Pump body, 2. Shell, 3. Cover, 4. Vacuum nozzle, 5. Inflation nozzle, 6. Sealing ring, 7. Groove, 8. Convex ring, 9. Screw, 10. Vibration damping part, 11. Sealing ring, 12. Perforation, 13. Screw hole, 14. Limiting ring, 15. First connecting part, 16. Second connecting part, 17. Vibration damping part, 18. Exhaust pipe, 19. Shell, 20. Solenoid valve assembly, 21. Air pump assembly, 22. Suspension, 23. Silicone foot pad, 24. Spring layer, 25. Front sponge section, 26. Rear sponge section, 27. Middle adjustment section, 28. Controller, 29. Vibration damping belt, 30. Comfort layer. Modes for Carrying Out the Invention

[0027] The essential features of the present invention will be further described below with reference to the accompanying drawings and specific implementation methods.

[0028] Example 1:

[0029] This embodiment provides an air pump assembly.

[0030] An air pump assembly as shown in Figures 1 and 2 consists of a pump casing with an assembly cavity therein and a pump body 1 arranged in the assembly cavity. The pump casing includes a shell body 2 and a cover body 3 that are sealed and connected. The cover body 3 is provided with an air suction nozzle 4 connected to the assembly cavity and an inflation nozzle 5 connected to the air outlet of the pump body 1. The pump body 1 obtains the air source through the air suction nozzle 4 and compresses it to form a high-pressure airflow that is discharged through the inflation nozzle 5. The target space realizes air pressure regulation by switching the connection with the air suction nozzle 4 or the inflation nozzle 5. The target space is an air bag set on the bed. An assembly cavity sealed from the external space is set in the pump housing, and an exhaust nozzle 4 and an inflation nozzle 5 that can be switchably connected to the air bag and can exhaust and inflate the air bag are set on the pump housing. The air pump assembly 21 extracts the air in the air bag through the exhaust nozzle 4, so that the air pressure in the air bag drops quickly and accurately, and supplies air to the air bag through the inflation nozzle 5, so that the air pressure in the air bag rises quickly and accurately, which not only ensures the inflation and deflation efficiency of the air bag, but also improves the air pressure adjustment accuracy of the air bag, thereby improving the user experience.

[0031] In this embodiment, the housing 2 and the cover 3 are sealed and connected to form an assembly cavity isolated from the outside space. The assembly cavity is connected to the outside space through the air extraction nozzle 4, providing the pump body 1 with an air source for forming a high-pressure airflow. An air outlet pipe 18 is provided in the assembly cavity. One end of the air outlet pipe 18 is connected to the air outlet of the pump body 1, and the other end is connected to the inflation nozzle 5, so that the inflation nozzle 5 is isolated from the assembly cavity and the high-pressure airflow generated by the pump body 1 is discharged. The air inlet of the pump body 1 is exposed in the assembly cavity so that the air inlet obtains the air source for forming the high-pressure airflow through the air extraction nozzle 4. When the air pump assembly 21 is in operation, the air extraction nozzle 4 can provide an air source for the air inlet of the pump body 1 (as shown in Figure 4), and the inflation nozzle 5 can convey the high-pressure airflow generated by the air outlet of the pump body 1, so that the pump body 1 can operate normally in the pump housing.

[0032] In this embodiment, the housing 2 is cylindrical and includes an assembly slot with an open end face (as shown in FIG3 ). A sealing ring 6 is provided around the edge of the slot opening of the assembly slot. The cover 3 fits over the slot opening of the assembly slot and tightly clamps the sealing ring 6, thereby providing a sealed connection between the cover 3 and the housing 2. The cover 3 fits over the slot opening of the assembly slot and is sealed to the housing 2, ensuring that air within the assembly chamber cannot escape through the gap between the cover 3 and the housing 2. To enhance the sealing performance of the connection between the cover 3 and the housing 2, a sealing ring 6 is provided between the periphery of the cover 3 and the periphery of the slot opening. The sealing ring 6 is in sealing contact with the cover 3 and the housing 2, respectively, thereby sealing the gap between the cover 3 and the housing 2.

[0033] In this embodiment, the notch is provided with an annular beading 7 around its periphery, into which the sealing ring 6 is embedded. A raised ring 8 is provided around the periphery of the cover 3's end surface facing the housing 2. The raised ring 8 is inserted into the beading 7 and tightly holds the sealing ring 6. The sealing ring 6, embedded in the beading 7, serves as a radial limiter for the sealing ring 6, preventing localized deviation of the sealing ring 6 from affecting the sealing reliability between the cover 3 and the housing 2. When the cover 3 is placed over the housing 2, the raised ring 8, inserted into the beading 7, compresses the sealing ring 6, causing it to deform under pressure and form a tight fit with the walls of the beading 7 and the surface of the raised ring 8.

[0034] In this embodiment, the cross-sectional profiles of the embedding groove 7 and the protruding ring 8 are both square. The width of the embedding groove 7 matches the width of the protruding ring 8, and the height of the protruding ring 8 is less than the depth of the embedding groove 7. The protruding ring 8 is fully inserted into the embedding groove 7, so that the periphery of the cover 3 and the periphery of the notch are tightly fitted. During installation, the protruding ring 8 is fully inserted into the embedding groove 7, so that the periphery of the cover 3, excluding the protruding ring 8, can tightly fit the area around the embedding groove 7. The sidewalls of the protruding ring 8 are tightly fitted with the sidewalls of the embedding groove 7, thereby improving the sealing reliability by increasing the contact area between the cover 3 and the housing 2.

[0035] In this embodiment, the pump body 1 is suspended and fixed in the assembly cavity by a vibration damping assembly. The vibration damping assembly includes a plurality of screws 9 disposed in the assembly cavity and a vibration damping member 10 spanning between the screws 9 and the pump body 1 (as shown in FIG5 ). A screw hole 13 is provided on the wall of the assembly groove away from the notch, and a through-hole 12 is provided on the cover 3. The screw 9 passes through the sealing ring 11, the through-hole 12, and the vibration damping member 10, and is then screwed and locked with the corresponding screw hole 13 to seal the through-hole 12. A limiting ring 14 is provided on the end of the screw 9 exposed to the cover 3. The sealing ring 11 is sleeved on the section of the screw 9 located between the limiting ring 14 and the cover 3. After installation, the limiting ring 14 and the cover 3 tightly clamp the sealing ring 11.

[0036] During installation, first, the vibration damper 10 is fixedly mounted on the pump body 1 through the second connecting portion 16. After that, the end of the screw 9 passes through the sealing ring 11, the through-hole 12 and the corresponding first connecting portion 15 in sequence, so that the pump body 1, the vibration damper 10, the screw 9 and the cover body 3 are assembled and connected; finally, the cover body 3 is covered on the notch of the assembly groove, and is screwed and locked with the corresponding screw hole 13 through the end of the screw 9.

[0037] After being installed in place, the cover body 3 is tightly fitted with the notch of the assembly groove under the pulling action of the screw 9, and the limiting ring 14 is used to cooperate with the cover body 3 to clamp the sealing ring 11 to seal the through hole 12.

[0038] In this embodiment, the vibration damper 10 includes a first connecting portion 15 through which the screw 9 passes, a second connecting portion 16 that is sleeved and fixedly connected to the pump body 1, and a vibration damper 17 that spans between the first and second connecting portions 15, 16. The first connecting portion 15 is in the shape of a collar, facilitating the insertion and connection of the screw 9. The second connecting portion 16 is also in the shape of a collar, facilitating sleeved and fixed connection to the pump body 1.

[0039] Example 2:

[0040] Compared with the first embodiment, this embodiment provides a controller 28 .

[0041] As shown in Figure 6, a controller 28 comprises a housing 19 with an internal mounting cavity, and a solenoid valve assembly 20, an air pump assembly 21, and a circuit board disposed within the cavity. The air pump assembly 21 and solenoid valve assembly 20 are suspended on a suspension 22 via vibration-damping straps 29. The suspension 22 is attached to the bottom wall of the mounting cavity via silicone pads 23. The circuit board controls the operation of the solenoid valve assembly 20 and air pump assembly 21. The high-pressure airflow generated by the air pump assembly 21 is guided by the solenoid valve assembly 20 and delivered to the target space, enabling adjustable air pressure within the target space.

[0042] In this embodiment, the air pump assembly 21 and the solenoid valve assembly 20 are suspended on the suspension 22 through a vibration-damping belt 29, and the suspension 22 is overlapped on the bottom wall of the installation cavity through a silicone foot pad 23, so that the vibration generated by the operation of the air pump assembly 21 and the solenoid valve assembly 20 will be offset by the deformation of the vibration-damping belt 29 and the silicone foot pad 23 in turn, and the vibration of the housing 19 is reduced through multi-stage vibration reduction, thereby reducing the noise during the operation of the controller 28 and reducing the impact on the user's sleep.

[0043] In this embodiment, the controller 28 is equipped with a piping assembly, which includes a noise reduction box, an internal tube connecting the air pump assembly 21 and the solenoid valve assembly 20, and an external tube that connects the solenoid valve assembly 20 to the external target space. The internal tube is completely hidden within the housing 19, and multiple external tubes are provided to connect to different target spaces. The high-pressure airflow generated by the operation of the air pump assembly 21 is transmitted through the internal tube to the solenoid valve assembly 20. The solenoid valve assembly 20 is controlled by opening and closing to guide the high-pressure airflow to the airbag forming the target space, thereby making the airbag softness and hardness adjustable.

[0044] In this embodiment, the exhaust nozzle 4 and the inflation nozzle 5 are switchably connected to the target space via the solenoid valve assembly 20. When there is a single target space, the target space is switchably connected to the exhaust nozzle 4 and the inflation nozzle 5 via the solenoid valve assembly 20, thereby achieving independent exhaust and inflation operations. When there are multiple target spaces, the solenoid valve assembly 20 can independently connect the exhaust nozzle 4 and the inflation nozzle 5 to each target space, enabling both independent exhaust and inflation operations for a single target space and gas transfer between different target spaces.

[0045] The other structures and effects of the air pump assembly described in this embodiment are consistent with those in the first embodiment and will not be described in detail.

[0046] Example 3:

[0047] Compared with the second embodiment, this embodiment provides a bed.

[0048] The bed shown in Figure 7 is composed of a cushion body, which includes a comfort layer 30, an adjustment layer, and a spring layer 24 arranged in sequence from top to bottom. The adjustment layer includes a front sponge section 25, a middle adjustment section 27, and a rear sponge section 26 arranged in sequence from front to back. The middle adjustment section 27 is provided with an airbag with adjustable hardness and softness, and the rear sponge section 26 is provided with a controller 28 for controlling the hardness of the airbag. The controller 28 is connected to the airbag via an air pipe. Placing the controller 28 in the cushion body effectively shortens the distance between the controller 28 and the middle adjustment section 27, facilitating the arrangement of pipelines. By providing a multi-stage vibration reduction structure, the vibration generated by the operation of the air pump assembly 21 and the solenoid valve assembly 20 is prevented from being transmitted to the cushion body through the housing 19, ensuring that the user has a better sleeping experience.

[0049] In this embodiment, the cushion body comprises an outer cover that integrally encloses the comfort layer 30, the adjustment layer, and the spring layer 24. The comfort layer 30 conforms closely to the user's surface, increasing contact area and enhancing support comfort. The adjustment layer adjusts the hardness of the cushion body by controlling the air pressure within the airbags, making the hardness adjustable to meet the user's varying needs. The spring layer 24 provides overall support for the user.

[0050] In this embodiment, the controller 28 is disposed inside the cushion body, which effectively shortens the distance between the controller 28 and the airbag and facilitates pipeline laying.

[0051] The other structures and effects of the controller described in this embodiment are consistent with those in the second embodiment and will not be described in detail.

Claims

1. An air pump assembly, comprising a pump housing with an assembly cavity therein and a pump body (1) arranged in the assembly cavity, characterized in that: The pump housing comprises a housing (2) and a cover (3) which are sealed and connected to each other. The cover (3) is provided with an air suction nozzle (4) which is connected to the assembly cavity and an air charging nozzle (5) which is connected to the air outlet of the pump body (1). The pump body (1) obtains an air source through the air suction nozzle (4) and compresses it to form a high-pressure airflow which is discharged through the air charging nozzle (5). The target space realizes air pressure regulation by switching between the air suction nozzle (4) and the air charging nozzle (5).

2. An air pump assembly according to claim 1, characterized in that: The shell (2) is columnar, and is provided with an assembly groove with an end surface opening in the shell (2). A sealing ring (6) is provided at the periphery of the groove opening of the assembly groove. The cover (3) covers the groove opening and tightly clamps the sealing ring (6) so that the cover (3) and the shell (2) are sealed and connected.

3. An air pump assembly according to claim 2, characterized in that: An annular embedding groove (7) is provided on the periphery of the notch, and the sealing ring (6) is embedded in the embedding groove (7). A convex ring (8) is provided on the periphery of the end surface of the cover body (3) facing the shell body (2), and the convex ring (8) is inserted into the embedding groove (7) and tightly clamps the sealing ring (6).

4. An air pump assembly according to claim 3, characterized in that: The cross-sectional profiles of the embedding groove (7) and the convex ring (8) are both square, and the width of the embedding groove (7) matches the width of the convex ring (8), so that the groove wall of the embedding groove (7) and the side wall of the convex ring (8) fit in contact with each other; or, the height of the convex ring (8) is less than the depth of the embedding groove (7), and the convex ring (8) is completely inserted into the embedding groove (7), so that the periphery of the cover body (3) fits tightly with the periphery of the groove opening.

5. An air pump assembly according to claim 2, characterized in that: The pump body (1) is suspended and fixed in the assembly cavity via a vibration-damping component, the vibration-damping component comprising a plurality of screws (9) disposed in the assembly cavity and a vibration-damping member (10) spanning between the screws (9) and the pump body (1), a screw hole (13) being provided on a wall of the assembly groove away from the groove opening, a through hole (12) being provided on the cover body (3), the screw (9) passing through the sealing ring (11), the through hole (12) and the vibration-damping member (10) and then being screwed and locked with the corresponding screw hole (13) to seal the through hole (12).

6. An air pump assembly according to claim 5, characterized in that: A limiting ring (14) is provided on the end of the screw rod (9) exposed outside the cover body (3); the sealing ring (11) is sleeved on the section of the screw rod (9) located between the limiting ring (14) and the cover body (3); after being installed in place, the limiting ring (14) and the cover body (3) tightly clamp the sealing ring (11); or the vibration damping member (10) comprises a first connecting portion (15) for the screw rod (9) to pass through, a second connecting portion (16) sleeved and fixedly connected to the pump body (1), and a vibration damping portion (17) spanning between the first connecting portion (15) and the second connecting portion (16).

7. An air pump assembly according to claim 1, characterized in that: An air outlet pipe (18) is provided in the assembly cavity, one end of the air outlet pipe (18) is connected to the air outlet of the pump body (1), and the other end is connected to the inflation nozzle (5), so that the inflation nozzle (5) is isolated from the assembly cavity; or, the air inlet of the pump body (1) is exposed in the assembly cavity, so that the air inlet obtains an air source for forming a high-pressure airflow through the suction nozzle (4).

8. A controller using the air pump assembly according to any one of claims 1 to 7, comprising a housing (19) having a mounting cavity therein, and a solenoid valve assembly (20), an air pump assembly (21) and a circuit board arranged in the mounting cavity, characterized in that: The air pump assembly (21) and the solenoid valve assembly (20) are suspended on a suspension frame (22) via a vibration-damping belt (29); the suspension frame (22) is overlapped on the bottom wall of the installation cavity via a silicone pad (23).

9. A controller according to claim 8, characterized in that: The controller is provided with a pipeline assembly, the pipeline assembly comprising a noise reduction box, an internal pipe spanning between the air pump assembly (21) and the electromagnetic valve assembly (20), and an external pipe for connecting the electromagnetic valve assembly (20) with an external target space, the noise reduction box being connected in series to the internal pipe or the external pipe; or the air suction nozzle (4) and the air charging nozzle (5) are switched to connect with the target space via the electromagnetic valve assembly (20).

10. A bed using the controller according to claim 8 or 9, comprising a mattress, characterized in that: The cushion body comprises a comfort layer (30), an adjustment layer and a spring layer (24) which are arranged in sequence from top to bottom; the adjustment layer comprises a front sponge segment (25), a middle adjustment segment (27) and a rear sponge segment (26) which are arranged in sequence from front to back; the middle adjustment segment (27) is provided with an airbag with adjustable hardness and softness; the rear sponge segment (26) is provided with a controller (28) for controlling the hardness and softness of the airbag; the controller (28) is connected to the airbag via an air pipe.

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