Suspension type inverted air outlet air pump

Abstract

The utility model provides a suspension type inverted air outlet air pump which comprises a shell, an air inlet, an air outlet and an air outlet. The air pump assembly is suspended in the mounting space through a suspension device; the soft sealing film is arranged in the mounting space, one end of the soft sealing film is connected with the shell, the other end of the soft sealing film is connected with the air pump assembly, the soft sealing film is used for dividing the mounting space into a first cavity and a second cavity, the first cavity communicates with the air outlet, and the second cavity communicates with the air inlet; the air pump assembly comprises an air inlet end and an air outlet end, the air inlet end is unidirectionally communicated with an air path of the air outlet end, the air inlet end is located in the second cavity, the air outlet end is located in the first cavity, and the air outlet end is communicated with the air outlet through the first cavity; the air pump assembly further comprises a driving mechanism and at least one actuating piece, and the driving mechanism and the actuating piece are used for pressurizing air sucked from the air inlet end. The air pump provided by the utility model is small in air flow fluctuation and can be suitable for an inverted air outlet application scene.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of automobile seat massage devices, in particular to a suspension type inverted air outlet air pump. BACKGROUND

[0002] The existing automobile seat massage function is mainly realized by an air pump. The working principle is that the air pump is connected to a controller, the controller has a switch valve, the air pump is used as an air source, and the air bag is inflated and deflated by the opening and closing of the switch valve and the air pump to realize the massage function. The traditional air pump usually takes in air at the bottom end and discharges air at the top end. When installed in the interior of the automobile seat, due to the installation requirements of the special structure, the airflow fluctuates greatly in the narrow space inside the seat. CONTENT OF THE UTILITY MODEL

[0003] In view of the above defects or deficiencies in the prior art, it is desirable to provide a suspension type inverted air outlet air pump to solve the above problems.

[0004] The present application provides an inverted air outlet air pump arranged in an automobile seat, comprising:

[0005] A housing having a mounting space inside, an air inlet at the top of the housing, and an air outlet at the bottom or sidewall of the housing;

[0006] An air pump assembly suspended in the mounting space by a hanger;

[0007] A soft sealing membrane arranged in the mounting space, one end of the soft sealing membrane connected to the housing and the other end connected to the air pump assembly, for dividing the mounting space into a first cavity and a second cavity, the first cavity communicating with the air outlet, and the second cavity communicating with the air inlet; the air pump assembly comprising an air inlet end and an air outlet end, the air inlet end arranged close to the headrest of the automobile seat relative to the air outlet end, the air path from the air inlet end to the air outlet end being unidirectional, the air inlet end located in the second cavity, and the air outlet end located in the first cavity, the air outlet end communicating with the air outlet through the first cavity;

[0008] The air pump assembly further comprises a driving mechanism and at least one actuator, the driving mechanism and the actuator being used to increase the pressure of the gas sucked from the air inlet end.

[0009] According to the technical scheme provided by the embodiments of the present application, the air pump assembly further comprises a gas distribution assembly, at least one gas distribution passage is formed on the gas distribution assembly, the actuator and the gas distribution assembly cooperate to form an actuating cavity, and the volume of the actuating cavity is variable; the gas distribution assembly further forms at least one gas distribution cavity, one gas distribution passage communicates one actuating cavity and one gas distribution cavity, and the gas distribution cavity is communicated to the first cavity.

[0010] According to the technical scheme provided by the embodiment of the present application, the air distribution assembly comprises:

[0011] An air distribution pad, which is elastic, has at least one first air guide part;

[0012] An air distribution top cover, which is arranged on the side of the air distribution pad close to the air inlet, forms the air distribution cavity together with the air distribution pad, and has at least one second air guide part;

[0013] An air distribution bottom cover, which is arranged on the side of the air distribution pad away from the air inlet, has at least one third air guide part; the third air guide part, the second air guide part and the first air guide part are connected to the actuating cavity and the second cavity, and the second cavity is unidirectionally connected to the actuating cavity.

[0014] According to the technical scheme provided by the embodiment of the present application, the air distribution passage comprises a first air inlet, a first air outlet, a second air inlet and a second air outlet, the first air inlet and the first air outlet are arranged on the air distribution pad and penetrate the air distribution pad, the second air inlet and the second air outlet are arranged on the air distribution bottom cover and penetrate the air distribution bottom cover, the second air inlet and the first air inlet are connected to an air distribution cavity and an actuating cavity, and the first air outlet and the second air outlet are connected to the actuating cavity and the first cavity.

[0015] According to the technical scheme provided by the embodiment of the present application, a transfer cavity is arranged on the air pump assembly, the transfer cavity is arranged between the second air outlet and the first cavity, one end of the transfer cavity is connected to the second air outlet, and the other end is connected to the first cavity through an exhaust nozzle.

[0016] According to the technical scheme provided by the embodiment of the present application, the third air guide part comprises a mounting hole and a plurality of air passing holes, the mounting hole and the air passing holes penetrate the air distribution bottom cover, and the plurality of air passing holes are arranged around the mounting hole; a gas isolation part is arranged in the mounting hole, the gas isolation part is provided with an elastic gas isolation part on the side of the air distribution bottom cover away from the air distribution pad, and the elastic gas isolation part abuts against the air distribution bottom cover; when the gas is guided from the second cavity to the actuating cavity, the elastic gas isolation part opens the air passing holes, and when the gas is guided from the actuating cavity to the second cavity, the elastic gas isolation part closes the air passing holes.

[0017] According to the technical scheme provided in the embodiment of the present application, the shell comprises an upper shell and a lower shell which are detachably connected, the upper shell is provided with an air inlet nozzle, and the air inlet is formed on the air inlet nozzle; the lower shell is provided with an air outlet nozzle, and the air outlet is formed on the air outlet nozzle; and the soft sealing film is clamped between the upper shell and the lower shell.

[0018] According to the technical scheme provided in the embodiment of the present application, the hanging fastener comprises a first clamping part and a second clamping part, the first clamping part is clamped with the air distribution top cover, and the second clamping part penetrates through the upper shell and is clamped with the upper shell.

[0019] According to the technical scheme provided in the embodiment of the present application, the hanging fastener is hollow inside and communicates at both ends, the air inlet is formed inside the hanging fastener, and the air inlet extends into the second cavity and directly communicates with the air inlet end.

[0020] According to the technical scheme provided in the embodiment of the present application, the free volume of the second cavity after the installation of the air pump assembly is three times or more than the volume of the actuating cavity.

[0021] Compared with the prior art, the present application has the beneficial effects that: by arranging the air inlet on the top of the shell and the air outlet on the bottom or sidewall of the shell, the present application is different from the existing air pump, meets the installation requirements of special structures, and ensures easy assembly in a small space; by externally connecting the air bag to the air outlet and repeatedly extruding the actuator by the driving mechanism, the air bag can be inflated, and the massage effect is realized; by arranging the air distribution passage as one-way conduction, the air in the actuator can be prevented from returning to the second cavity during the compression process, and the problem of poor inflation effect caused by insufficient air supply of the actuator is avoided; by arranging the first cavity and the second cavity for gas transition, the air pressure balance can be ensured, and the large air flow fluctuation of the discharged gas is avoided; by arranging the hanging fastener to fix the air distribution assembly, compared with the traditional assembly method, the contact between the air distribution assembly and the shell is reduced, and the vibration generated during work is transmitted to the shell, thereby avoiding noise generated by the vibration of the shell. BRIEF DESCRIPTION OF DRAWINGS

[0022] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments made with reference to the accompanying drawings:

[0023] Figure 1 The structural schematic diagram of the suspension type inverted air outlet air pump provided in the embodiment of the present application is shown in the figure;

[0024] Figure 2 The structural schematic diagram of the suspension type inverted air outlet air pump provided in the embodiment of the present application is shown in the figure; Figure 1 The exploded view of the suspension type inverted air outlet air pump shown in the figure;

[0025] Figure 3Fig. 1 is a perspective view of a suspension type inverted air outlet pump according to an embodiment of the present application; Figure 2 Fig. 2 is an enlarged schematic view of a gas distribution assembly in the suspension type inverted air outlet pump shown in Fig. 1;

[0026] Figure 4 Fig. 3 is a front view of the suspension type inverted air outlet pump shown in Fig. 1; Figure 1

[0027] Figure 5 Fig. 4 is a sectional view of the suspension type inverted air outlet pump shown in Fig. 1 in the A-A direction; Figure 4

[0028] Figure 6 Fig. 5 is a sectional view of the suspension type inverted air outlet pump shown in Fig. 1 in the B-B direction; Figure 4

[0029] Figure 7 Fig. 6 is a schematic view of the inside of the suspension type inverted air outlet pump shown in Fig. 1; Figure 1

[0030] Figure 8 Fig. 7 is a schematic view of the inside of the suspension type inverted air outlet pump provided for Embodiment 2;

[0031] Figure 9 Fig. 8 is a schematic view of the inside of the suspension type inverted air outlet pump provided for Embodiment 3;

[0032] Figure 10 Fig. 9 is a schematic view of the inside of the suspension type inverted air outlet pump provided for Embodiment 4.

[0033] The accompanying drawings are included to provide a further understanding of the application, and are incorporated herein and constitute a part of this application. The drawings illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application. In the drawings:1, housing; 2, air inlet; 3, air outlet; 4, hanger; 5, soft sealing membrane; 6, first cavity; 7, second cavity; 8, driving mechanism; 9, actuator; 10, gas distribution assembly; 11, actuating cavity; 12, gas distribution passage; 13, gas distribution cavity; 14, gas distribution pad; 15, first air guide portion; 16, gas distribution top cover; 17, second air guide portion; 18, gas distribution bottom cover; 19, third air guide portion; 20, first air inlet portion; 21, first air outlet portion; 22, second air inlet portion; 23, second air outlet portion; 24, mounting hole; 25, air passage hole; 26, air blocking member; 27, elastic air blocking portion; 28, upper housing; 29, lower housing; 30, air inlet nozzle; 31, air outlet nozzle; 32, first clamping portion; 33, second clamping portion; 34, elastic clamping member; 35, driving device; 36, rotating member; 37, extruding member; 38, transmission shaft; 39, oscillating member; 40, connecting portion; 41, mounting seat; 42, base; 43, connecting member; 44, limiting portion; 45, partition wall; 46, air guide cavity; 47, air pipe; 48, lead-out wire; 49, transfer cavity; 50, air outlet. DETAILED DESCRIPTION

[0034] ​​​The application will be described in further detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related application, and not to limit the application. In addition, it should be noted that only parts related to the application are shown in the drawings for ease of description.

[0035] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and embodiments.

[0036] Embodiment 1

[0037] Please refer to Figures 1-7 The application provides a suspension type inverted air outlet air pump arranged in a car seat, comprising:

[0038] A housing 1 has a mounting space inside, the top of the housing 1 is provided with an air inlet 2, and the bottom or sidewall of the housing 1 is provided with an air outlet 3;

[0039] An air pump assembly is suspended in the mounting space by a hanger 4;

[0040] A soft sealing film 5 is arranged in the mounting space, one end of the soft sealing film 5 is connected with the housing 1, and the other end is connected with the air pump assembly, for separating the mounting space into a first cavity 6 and a second cavity 7, the first cavity 6 is communicated with the air outlet 3, and the second cavity 7 is communicated with the air inlet 2; the air pump assembly comprises an air inlet end and an air outlet end, the air inlet end is arranged close to the headrest of the car seat relative to the air outlet end, the air path from the air inlet end to the air outlet end is unidirectional, the air inlet end is located in the second cavity 7, and the air outlet end is located in the first cavity 6, and the air outlet end is communicated with the air outlet 3 through the first cavity 6;

[0041] The air pump assembly further comprises a driving mechanism 8 and at least one actuator 9, and the driving mechanism 8 and the actuator 9 are used for pressurizing the gas sucked from the air inlet end.

[0042] Specifically, the mounting space is formed in the hollow inside of the housing 1. The air inlet 2 and the air outlet 3 are both communicated with the mounting space, the air inlet 2 is arranged on the top of the housing 1 for air inlet into the mounting space, and the air outlet 3 is arranged on the bottom or sidewall of the housing 1 for being communicated with the external air bag through the air pipe 47 to repeatedly inflate the air bag. The arrangement of the positions of the air inlet 2 and the air outlet 3 forms an inverted air outlet type air pump, which can meet some special installation requirements, such as the scene that it is not convenient to invert the traditional air pump due to the limitation of air path in a small space.

[0043] The soft sealing film 5 and the air pump assembly are arranged in the installation space. The air pump assembly is a core component of the air pump. The air pump assembly includes an air inlet end for air intake and an air outlet end for air exhaust. The air inlet end is arranged near one side of the air inlet 2, and the air outlet end is arranged near one side of the air exhaust port. The air pump assembly is used for pressurizing the air entering the air inlet 2 and exhausting the air through the air exhaust port. In this embodiment, when the air pump is installed in the car seat, the air pump can be installed in the cushion or the backrest of the car seat. Regardless of where the air pump is installed, the air inlet end is always arranged near one side of the headrest of the car seat relative to the air outlet end due to the inverted arrangement of the air pump. The air pump assembly is connected to the shell 1 through the hanger 4. One end of the hanger 4 is connected to the upper shell 28, and the other end is connected to the air pump assembly. The hanger 4 suspends the air pump assembly in the installation space, reduces the contact of the air pump assembly with the shell 1, and thus reduces the vibration generated by the air pump assembly during operation and transmitted to the shell 1, thereby reducing the noise generated by the vibration of the shell 1. Optionally, the hanger 4 can be made of elastic material, thereby reducing the stiffness of the contact position of the air pump assembly and the shell 1, so that the vibration transmitted to the shell 1 by the air pump assembly during operation is further reduced. Preferably, the hanger 4 is a rubber pull pin. The soft sealing film 5 is connected to the air pump assembly and the shell 1, respectively. The soft sealing film 5 separates the installation space into a first cavity 6 and a second cavity 7. The first cavity 6 is connected to the air outlet end and the air outlet 3, and the second cavity 7 is connected to the air inlet end and the air inlet 2. In the second cavity 7, the air entering through the air inlet 2 is fully buffered, and the air is smoothly accumulated to continuously provide stable air supply for the air inlet end of the air pump assembly. In the second cavity 7, the high-pressure air discharged by the air outlet end of the air pump assembly is smoothly transitioned, effectively avoiding the airflow fluctuation phenomenon when the air is directly supplied outward through the air outlet 3, and ensuring the continuity and stability of the air output.

[0044] Further, the air pump assembly further comprises a gas distribution assembly 10, at least one gas distribution passage 12 is formed on the gas distribution assembly 10, the actuator 9 and the gas distribution assembly 10 cooperate to form an actuating cavity 11, and the volume of the actuating cavity 11 is variable; the gas distribution assembly 10 further forms at least one gas distribution cavity 13, one gas distribution passage 12 is connected to one actuating cavity 11 and one gas distribution cavity 13, and the gas distribution cavity 13 is connected to the first cavity 6.

[0045] Specifically, the air pump assembly comprises a driving mechanism 8 and at least one actuator 9, the actuator 9 is elastic and has a variable-volume accommodating space, the actuator 9 forms an actuating cavity 11 by being clamped on the air distribution assembly 10 to seal the accommodating space, in the embodiment, the number of the actuator 9 is four, the four actuators 9 are arranged around the axis of the air pump assembly, and the driving mechanism 8 is connected with the four actuators 9 respectively; optionally, the actuator 9 is a leather cup. The air distribution assembly 10 is arranged on the side of the air pump assembly close to the air inlet 2, the air distribution assembly 10 is formed with at least one air distribution passage 12 and at least one air distribution cavity 13, the number of the air distribution passage 12 and the air distribution cavity 13 is the same as that of the actuating cavity 11, in the embodiment, the air distribution passage 12 and the air distribution cavity 13 are each provided with four, each air distribution passage 12 is connected with one actuating cavity 11 and one air distribution cavity 13 in correspondence, and each air distribution passage 12 further connects the corresponding air distribution cavity 13 to the first cavity 6.

[0046] When the driving mechanism 8 works, the four actuators 9 are repeatedly extruded in turn, the gas in the actuating cavity 11 is pressurized when the actuator 9 is extruded, the pressurized gas enters the corresponding air distribution cavity 13 from the air distribution passage 12, and then is discharged into the first space from the air outlet end through the air distribution passage 12, and then is discharged from the air outlet 3 after transition through the first space. Through the sequential action of the four actuators 9, the inflation efficiency can be improved.

[0047] Further, the driving mechanism 8 comprises a driving device 35, a rotating piece 36 and an extruding piece 37, the rotating piece 36 is rotatably arranged in the first space, the rotating piece 36 is in transmission connection with the output shaft of the driving device 35, the driving device 35 can be selected as a motor, and the driving device 35 is installed on the mounting seat 41 through the base 42; the extruding piece 37 comprises a transmission shaft 38 and an oscillating piece 39 connected with one end of the transmission shaft 38, the free end of the transmission shaft 38 is in transmission connection with the rotating piece 36, and the oscillating piece 39 is provided with a connecting part 40 on the peripheral side, the connecting part 40 is sleeved on the actuator 9.

[0048] Specifically, as shown in Figure 2 the rotating piece 36 is a torsion shaft, the oscillating piece 39 is a swing disc, the connecting part 40 is arranged on the outer peripheral side of the oscillating piece 39, the connecting part 40 is annular and is sleeved on the position where the actuator 9 extends, and is fixed with the actuator 9; the rotating piece 36 and the oscillating piece 39 are coaxially arranged with the driving device 35, and the driving device 35 is connected with the external power supply through the lead-out wire 48. The rotating piece 36 is in transmission connection with the output shaft of the driving device 35, the top surface of the rotating piece 36 is eccentrically provided with a hole position, one end of the transmission shaft 38 extends into the hole position and can rotate in the hole position, the rotating direction is around the axis of the transmission shaft 38, the transmission shaft 38 is inclined to the axis direction of the oscillating piece 39 and the other end is fixedly connected with the center of the oscillating piece 39.

[0049] When the drive device 35 rotates, it drives the rotating member 36 to rotate around the axis of the drive device 35. When the rotating member 36 rotates, it drives the transmission shaft 38 to perform circular motion around the axis of the drive device 35, thereby causing the oscillating member 39 to rotate with the transmission shaft 38. The connecting portion 40 located at the peripheral edge of the oscillating member 39 moves along... Figure 2 The vertical direction of the actuator swings up and down, thereby repeatedly squeezing the actuator 9 so that the actuator 9 switches between the natural state and the compressed state.

[0050] Furthermore, the air distribution assembly 10 includes:

[0051] An air distribution cushion 14 is elastic and has at least one first air guiding part 15.

[0052] A top cover 16 is provided on the side of the air distribution pad 14 near the air inlet 2. After the top cover 16 and the air distribution pad 14 are closed, the air distribution cavity 13 is formed. At least one second air guide part 17 is provided on the top cover 16.

[0053] A bottom cover 18 is provided on the side of the air distribution pad 14 away from the air inlet 2. At least one third air guide 19 is provided on the bottom cover 18. The third air guide 19, the second air guide 17 and the first air guide 15 cooperate to connect the actuation chamber 11 and the second cavity 7, and unidirectionally connect the second cavity 7 to the actuation chamber 11.

[0054] Specifically, such as Figure 2 and Figure 3 As shown, the valve train assembly 10 consists of three parts: a valve train cushion 14, a valve train top cover 16, and a valve train bottom cover 18. The valve train cushion 14 is elastic. The valve train top cover 16 is fitted tightly against the side of the valve train cushion 14 near the air inlet 2, and the valve train bottom cover 18 is fitted tightly against the side of the valve train cushion 14 near the air outlet 3. The valve train cushion 14, the valve train top cover 16, and the valve train bottom cover 18 are connected by a connector 43. The connector 43 is rod-shaped and passes through the valve train top cover 16, the valve train cushion 14, and the valve train bottom cover 18 in sequence. The end of the connector 43 is provided with a limiting part 44. The end of the connector 43 also passes through a mounting base 41. The limiting part 44 tightly installs the mounting base 41 and the valve train bottom cover 18 together, so that the mounting base 41 presses the actuator 9 tightly against the valve train bottom cover 18. It should be noted that the holes on the valve train top cover 16 and the valve train cushion 14 through which the connector 43 passes are not connected to the valve train cavity 13.

[0055] The side of the air distribution top cover 16 close to the air distribution pad 14 is provided with a partition wall 45. After the air distribution top cover 16 is combined with the air distribution pad 14, the partition wall 45 cooperates with the side wall of the air distribution top cover 16 to at least separate two areas which are not communicated with each other. The area close to the axis of the air distribution top cover 16 forms four air distribution cavities 13, and the area far from the axis of the air distribution top cover 16 forms four air guide cavities 46. The first air guide part 15 is arranged on the air distribution pad 14 at the position corresponding to the air guide cavities 46. The first air guide part 15 is a petal-shaped hole arranged on the air distribution top cover 16. The first air guide part 15 is communicated with the air guide cavities 46. The second air guide part 17 is arranged on the air distribution top cover 16 at the position corresponding to the air guide cavities 46. The second air guide part 17 is a through hole arranged on the air distribution top cover 16. The second air guide part 17 is communicated with the air guide cavities 46. The second air guide part 17 is provided with a plurality of protrusions around the end close to the air inlet 2. The third air guide part 19 is a hole arranged on the air distribution bottom cover 18. The third air guide part 19 is communicated with the actuating cavity 11. The gas entering from the air inlet end passes through the second air guide part 17, the air guide cavities 46, the first air guide part 15 and the third air guide part 19 in sequence, enters the actuating cavity 11, and is discharged from the air distribution passage 12 through the extrusion of the actuating cavity 11. The third air guide part 19 is unidirectionally communicated from the first air guide part 15 to the actuating cavity 11, so as to avoid the backflow of the gas in the actuating cavity 11 to the air inlet end when the actuating cavity 11 is extruded, and affect the inflation efficiency. The embodiment provides an implementation mode for realizing the unidirectional communication of the third air guide part 19, and the implementation mode is as follows:

[0056] Further, the third air guide part 19 comprises a mounting hole 24 and a plurality of air passing holes 25. The mounting hole 24 and the air passing holes 25 penetrate the air distribution bottom cover 18. The air passing holes 25 are arranged around the mounting hole 24. An air separation part 26 is arranged in the mounting hole 24. The air separation part 26 is provided with an elastic air separation part 27 on the side of the air distribution bottom cover 18 far from the air distribution pad 14. The elastic air separation part 27 abuts against the air distribution bottom cover 18. When the air is guided from the second cavity 7 to the actuating cavity 11, the elastic air separation part 27 opens the air passing holes 25. When the air is guided from the actuating cavity 11 to the second cavity 7, the elastic air separation part 27 closes the air passing holes 25.

[0057] Specifically, the diameter of the mounting hole 24 is larger than the diameter of the air passing hole 25. The mounting hole 24 and the air passing hole 25 penetrate the air distribution bottom cover 18. The air passing holes 25 are uniformly distributed on the outer circumferential side of the air passing hole 25. The air separation part 26 is arranged in the mounting hole 24. The air separation part 26 is elastic. One end of the air separation part 26 is provided with the elastic air separation part 27. The air separation part 26 blocks the mounting hole 24 when the air separation part 26 is arranged in the mounting hole 24, so as to close the mounting hole 24. The elastic air separation part 27 is arranged on the side of the air distribution bottom cover 18 close to the air outlet 3. The radial dimension of the elastic air separation part 27 satisfies the requirement of covering all the air passing holes 25. The side of the elastic air separation part 27 close to the air distribution bottom cover 18 forms an arc surface facing the air distribution bottom cover 18. The air separation part 26 can be selected asFigure 3 The umbrella nail is shown.

[0058] When the actuating cavity 11 is expanded, the air pressure in the actuating cavity 11 is reduced, and the gas in the gas distribution cavity 13 is pressed out of the air hole 25 by the elastic air separation part 27. At this time, the elastic air separation part 27 is not blocked, so that the elastic air separation part 27 opens the air hole 25, and the gas can be supplemented into the actuating cavity 11. When the actuating cavity 11 is compressed, the air pressure in the actuating cavity 11 is increased, and the gas in the actuating cavity 11 is discharged to the second cavity 7. At the position of the elastic air separation part 27, the gas pressurizes the elastic air separation part 27 to tightly adhere to the gas distribution bottom cover 18 to close the air hole 25, thereby realizing one-way conduction of the gas.

[0059] Further, the gas distribution passage 12 includes a first air inlet 20, a first air outlet 21, a second air inlet 22, and a second air outlet 23. The first air inlet 20 and the first air outlet 21 are arranged on the gas distribution pad 14 and penetrate the gas distribution pad 14. The second air inlet 22 and the second air outlet 23 are arranged on the gas distribution bottom cover 18 and penetrate the gas distribution bottom cover 18. The second air inlet 22 and the first air inlet 20 are in communication with the gas distribution cavity 13 and the actuating cavity 11. The first air outlet 21 and the second air outlet 23 are in communication with the actuating cavity 11 and the first cavity 6.

[0060] Specifically, the gas distribution passage 12 includes two sections that are in communication with the actuating cavity 11 and the gas distribution cavity 13 and in communication with the gas distribution cavity 13 and the first cavity 6. The first air inlet 20 and the first air outlet 21 are through holes arranged on the gas distribution pad 14. The second air inlet 22 and the second air outlet 23 are through holes arranged on the gas distribution bottom cover 18. The first air inlet 20 is in communication with the gas distribution cavity 13, and the second air inlet 22 is in communication with the actuating cavity 11. The first air inlet 20 and the second air inlet 22 cooperate to form one section of the gas distribution passage 12 that is in communication with the actuating cavity 11 and the gas distribution cavity 13. The first air outlet 21 and the second air outlet 23 cooperate to form another section of the gas distribution passage 12 that is in communication with the gas distribution cavity 13.

[0061] Further, a transfer cavity 49 is formed on the gas pump assembly. The transfer cavity 49 is arranged between the second air outlet 23 and the first cavity 6. One end of the transfer cavity 49 is in communication with the second air outlet, and the other end is in communication with the first cavity 6 through an exhaust nozzle 50.

[0062] Specifically, the mounting seat 41 and the base 42 are installed to form a hollow transfer cavity 49 inside, the mounting seat 41 is provided with a plurality of air holes respectively communicating with each second air outlet 23, the air holes communicate the corresponding second air outlet 23 and the transfer cavity 49, and the second air outlet 23 and the first cavity 6 are communicated through the transfer cavity 46. The sidewall of the base 42 is provided with an exhaust nozzle 50, the exhaust nozzle 50 communicates the transfer cavity 49 and the first cavity 6, and is used for conveniently discharging the gas from the transfer cavity 49 to the first cavity 6.

[0063] Further, the shell 1 comprises a detachably connected upper shell 28 and lower shell 29, the upper shell 28 is provided with an air inlet nozzle 30, and the air inlet 2 is formed on the air inlet nozzle 30; the lower shell 29 is provided with an air outlet nozzle 31, and the air outlet 3 is formed on the air outlet nozzle 31; and the soft sealing film 5 is clamped between the upper shell 28 and the lower shell 29.

[0064] Specifically, the upper shell 28 and the lower shell 29 are detachably connected, and in this embodiment, the upper shell 28 and the lower shell 29 are detachably connected by clamping. After the upper shell 28 and the lower shell 29 are installed, a clamping groove is formed between the upper shell 28 and the lower shell 29, the soft sealing film 5 is clamped in the clamping groove between the upper shell 28 and the lower shell 29, the soft sealing film 5 is pressed on the shell 1 by the air pressure in the first cavity 6 and the second cavity 7, thereby separating the installation space into two parts of the first cavity 6 and the second cavity 7, and sealing between the first cavity 6 and the second cavity 7. The soft sealing film 5 also supports the air pump assembly, avoids the air pump assembly from shaking in the installation space, improves the stability of the air pump assembly during work, and in addition, the soft sealing film 5 has elasticity, thereby reducing the rigidity of the contact position of the air pump assembly and the shell 1, and further reducing the transmission of vibration of the air pump assembly during work.

[0065] The air inlet 2 is arranged on the top of the upper shell 28, and the air outlet 3 is arranged on the bottom or sidewall of the lower shell 29. In this embodiment, the upper shell 28 is provided with the air inlet nozzle 30, the air inlet 2 is arranged in the air inlet nozzle 30 and communicates with the second space, and the lower shell 29 is provided with the air outlet nozzle 31 on the bottom or sidewall, and the air outlet 3 is arranged in the air outlet nozzle 31. When the air pump works, the air outlet nozzle 31 and the air bag are communicated through the air pipe 47 to inflate the air bag.

[0066] Further, the hanger 4 comprises a first clamping part 32 and a second clamping part 33, the first clamping part 32 is clamped with the air distribution top cover 16, and the second clamping part 33 penetrates through the upper shell 28 and is clamped with the upper shell 28.

[0067] Specifically, the first clamping part 32 is arranged at one end of the hanging tightener 4, the second clamping part 33 is arranged at the other end of the hanging tightener 4, the gas distribution top cover 16 is provided with a through hole corresponding to the first clamping part 32, the upper shell 28 is provided with a through hole corresponding to the second clamping part 33, the hanging tightener 4 passes through the gas distribution top cover 16 and the upper shell 28, and the first clamping part 32 is clamped in the through hole on the gas distribution top cover 16, and the second clamping part 33 is clamped in the through hole on the upper shell 28. By arranging the hanging tightener 4, the gas pump assembly is suspended in the shell 1, and the contact between the gas pump assembly and the shell 1 is reduced. In the embodiment, the hanging tightener 4 is of a solid structure, and after installation is completed, the end of the hanging tightener 4 outside the shell 1 needs to be cut off by scissors.

[0068] Further, the empty volume of the second cavity 7 after the gas pump assembly is installed is three times or more than three times the volume of the actuating cavity 11.

[0069] Specifically, the first cavity 6 serves as a transfer cavity for air conducted by the gas distribution assembly 10 to the air outlet 3, and can balance the air pressure. By setting the empty volume of the first cavity 6 after the gas pump assembly is installed to be three times or more than three times the volume of the actuating cavity 11, the effect of balancing the air pressure can be further improved.

[0070] Embodiment 2

[0071] On the basis of the above-mentioned embodiment 1, another suspension type inverted air outlet gas pump is provided in the embodiment, and the same content as that of the embodiment 1 will not be described herein again, and the difference lies in that:

[0072] The hanging tightener 4 is hollow inside and communicates at both ends, the air inlet 2 is formed in the inside of the hanging tightener 4, and the air inlet 2 extends into the second cavity 7 and directly communicates with the air inlet end.

[0073] Specifically, in the embodiment, as shown in Figure 8 The upper shell 28 is not separately provided with the air inlet nozzle 30, the hanging tightener 4 is arranged in a hollow form, the air inlet 2 is integrated in the hanging tightener 4, the hanging tightener 4 can achieve the purpose of suspending the gas pump assembly, the air inlet nozzle 30 does not need to be separately arranged, and the manufacturing of the upper shell 28 is further facilitated. It should be noted that in the embodiment, only the first cavity 6 is used for stable transition of air, and the second cavity 7 is used for accommodating the hanging tightener 4.

[0074] Embodiment 3

[0075] On the basis of the above-mentioned embodiment 1, another suspension type inverted air outlet gas pump is provided in the embodiment, and the same content as that of the embodiment 1 will not be described herein again, and the difference lies in that:

[0076] The bottom of the shell 1 is clamped with a elastic clamping piece 34, one end of the elastic clamping piece 34 is clamped with the bottom of the shell 1, the other end is placed outside the shell 1; the elastic clamping piece 34 is hollow inside and the two ends are communicated, the air outlet 3 is formed in the inside of the elastic clamping piece 34.

[0077] Specifically, in the present embodiment, as shown in Figure 9 The side wall or the bottom of the lower shell 29 is provided with an opening, the side wall or the bottom of the lower shell 29 is not provided with the air outlet nozzle 31, by setting an elastic clamping piece 34 at the opening position of the lower shell 29, the elastic clamping piece 34 is clamped at the opening position, the elastic clamping piece 34 is set as a hollow form, the air outlet 3 is integrated in the elastic clamping piece 34, without separately setting the air outlet nozzle 31. Optionally, the elastic clamping piece 34 is a rubber pull pin similar to the hanger 4.

[0078] Embodiment 4

[0079] On the basis of the above-mentioned embodiment 1, the present embodiment provides another kind of suspended inverted air outlet air pump, the same content of the present embodiment and embodiment 1 is not described again, the difference is that:

[0080] In the present embodiment, as shown in Figure 10 The air inlet nozzle 30 is not separately set on the upper shell 28, the air inlet 2 is integrated in the inside of the hanger 4 for air intake, and the air outlet nozzle 31 is not separately set on the lower shell 29, by setting the elastic clamping piece 34 and integrating the air outlet 3 in the elastic clamping piece 34 for air outlet.

[0081] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by the above technical features or their equivalent features in any combination without departing from the inventive concept. For example, the above features are replaced with the technical features disclosed in the present application (but not limited to) having similar functions to form technical solutions.

Claims

1. A suspended inverted air pump, installed inside a car seat, characterized in that, include: The outer casing (1) has an installation space inside, and the top of the outer casing (1) is provided with an air inlet (2), and the bottom or side wall of the outer casing (1) is provided with an air outlet (3). An air pump assembly, which is suspended in the installation space by a tensioner (4); A soft sealing membrane (5) is disposed in the installation space. One end of the soft sealing membrane (5) is connected to the outer shell (1), and the other end is connected to the air pump assembly. It is used to divide the installation space into a first cavity (6) and a second cavity (7). The first cavity (6) is connected to the air outlet (3), and the second cavity (7) is connected to the air inlet (2). The air pump assembly includes an air inlet end and an air outlet end. The air inlet end is disposed near the headrest of the car seat relative to the air outlet end. The air path from the air inlet end to the air outlet end is unidirectional. The air inlet end is located in the second cavity (7), and the air outlet end is located in the first cavity (6). The air outlet end is connected to the air outlet (3) through the first cavity (6). The air pump assembly further includes a drive mechanism (8) and at least one actuator (9) for pressurizing gas drawn in from the air inlet.

2. The suspended inverted exhaust air pump according to claim 1, characterized in that, The air pump assembly further includes an air distribution assembly (10), on which at least one air distribution passage (12) is formed. The actuator (9) cooperates with the air distribution assembly (10) to form an actuation chamber (11), the volume of which is variable. The air distribution assembly (10) also forms at least one air distribution chamber (13). One air distribution passage (12) connects one actuation chamber (11) and one air distribution chamber (13), and connects the air distribution chamber (13) to the first cavity (6).

3. The suspended inverted exhaust air pump according to claim 2, characterized in that, The gas distribution assembly (10) includes: An air distribution pad (14) is elastic and has at least one first air guide portion (15) on it. The air distribution top cover (16) is located on the side of the air distribution pad (14) near the air inlet (2). After the air distribution top cover (16) and the air distribution pad (14) are closed, the air distribution cavity (13) is formed. The air distribution top cover (16) is provided with at least one second air guide part (17). A bottom cover (18) is provided on the side of the air distribution pad (14) away from the air inlet (2). At least one third air guide (19) is provided on the bottom cover (18). The third air guide (19), the second air guide (17) and the first air guide (15) cooperate to connect the actuation chamber (11) and the second cavity (7), and the second cavity (7) provides unidirectional communication to the actuation chamber (11).

4. The suspended inverted exhaust air pump according to claim 3, characterized in that, The gas distribution passage (12) includes a first air inlet (20), a first air outlet (21), a second air inlet (22), and a second air outlet (23). The first air inlet (20) and the first air outlet (21) are disposed on the gas distribution pad (14) and penetrate the gas distribution pad (14). The second air inlet (22) and the second air outlet (23) are disposed on the gas distribution bottom cover (18) and penetrate the gas distribution bottom cover (18). The second air inlet (22) and the first air inlet (20) cooperate to connect a gas distribution chamber (13) and an actuation chamber (11). The first air outlet (21) and the second air outlet (23) cooperate to connect an actuation chamber (11) and the first cavity (6).

5. The suspended inverted exhaust air pump according to claim 4, characterized in that, A transfer chamber (49) is formed on the air pump assembly. The transfer chamber (49) is located between the second air outlet (23) and the first cavity (6). One end of the transfer chamber (49) is connected to the second air outlet, and the other end is connected to the first cavity (6) through the exhaust nozzle (50).

6. The suspended inverted exhaust air pump according to claim 5, characterized in that, The third air guide section (19) includes a mounting hole (24) and a plurality of air passage holes (25). The mounting hole (24) and the air passage holes (25) penetrate the air distribution bottom cover (18). The plurality of air passage holes (25) are arranged around the mounting hole (24). An air-blocking component (26) is installed in the mounting hole (24). The air-blocking component (26) has an elastic air-blocking part (27) on the side of the air distribution bottom cover (18) away from the air distribution pad (14). The elastic air-blocking part (27) abuts against the air distribution bottom cover (18). When air is guided from the second cavity (7) to the actuation cavity (11), the elastic air-blocking part (27) opens the air passage hole (25). When air is guided from the actuation cavity (11) to the second cavity (7), the elastic air-blocking part (27) closes the air passage hole (25).

7. The suspended inverted exhaust air pump according to claim 6, characterized in that, The outer shell (1) includes a detachably connected upper shell (28) and a lower shell (29). The upper shell (28) is provided with an air inlet (30), and the air inlet (2) is formed on the air inlet (30). The lower shell (29) is provided with an air outlet (31), and the air outlet (3) is formed on the air outlet (31). The soft sealing membrane (5) is sandwiched between the upper shell (28) and the lower shell (29).

8. The suspended inverted exhaust air pump according to claim 7, characterized in that, The tensioner (4) includes a first snap-fit ​​part (32) and a second snap-fit ​​part (33). The first snap-fit ​​part (32) snaps into the air distribution top cover (16), and the second snap-fit ​​part (33) passes through the upper housing (28) and snaps into the upper housing (28).

9. The suspended inverted exhaust air pump according to claim 1, characterized in that, The tensioner (4) is hollow inside and connected at both ends. The air inlet (2) is formed inside the tensioner (4) and extends into the second cavity (7) and is directly connected to the air inlet end.

10. The suspended inverted exhaust air pump according to any one of claims 1-9, characterized in that, The empty volume of the second cavity (7) after the air pump assembly is installed is three times or more the volume of one of the actuation chambers (11).

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