CN211154752U - Mattress with good sealing performance - Google Patents

Abstract

The utility model relates to a mattress with good sealing performance. The existing pipeline has the problem of poor sealing performance, and the profile cannot be maintained during transportation. The utility model discloses an air pump box is established to air cushion layer and air pump box, establishes the air pump in the air pump box, and air pump and air cushion layer are led to through the pipeline, and the pipeline includes the built-in nest of tubes and external nest of tubes that lead to through joint Assembly, and joint Assembly is including setting up the socket on built-in nest of tubes gas outlet and setting up the plug on external nest of tubes air inlet, is equipped with the locating part that can reset on the plug, and the plug inserts the socket and puts the location through the locating part card to make built-in nest of tubes and external nest of. Set up the locating part on original socket for plug and socket that the installation target in place can be through locating part card position location, effectively prevent socket and plug and take place the condition of pine and take off because of exogenic action in the use, ensure that the high-pressure gas that the air pump box produced can accurately carry to the air cushion in situ effectively, promote gas transmission stability, and then promote and use experience.

Description

Mattress with good sealing performance

Technical Field

The utility model relates to a bedding field, concretely relates to mattress.

Background

The existing inflatable mattress comprises an air cushion layer and an external air pump box, the air pump box is communicated with the air cushion layer through a pipeline, the air pump box generates high-pressure air and inputs the air cushion layer through the pipeline, and the hardness of the mattress is controlled by adjusting the air pressure in the air cushion layer. In order to promote the bearing comfort, the air cushion layer comprises a plurality of regions capable of independently controlling air pressure, so that the pipeline comprises a plurality of unit pipes which are not communicated with each other, and in addition, in order to facilitate the dismounting and carrying, the pipeline comprises an internal pipe set arranged in the air pump box and an external pipe set exposed out of the air pump box, and the pipeline is dismounted to realize convenient transportation. However, this structure has the following drawbacks: contain the external nest of tubes and the built-in nest of tubes of a plurality of unit pipes and can influence connection stability because of individual unit union coupling dislocation, and then lead to taking place the condition of gas leakage because of the pipe connection pine takes off in the use, the influence is used and is experienced, in addition, the air cushion layer need keep its profile in the transportation, in handling, need to pull apart external nest of tubes and built-in nest of tubes, lead to the air in the air cushion layer to leak, make the air cushion layer take place the condition of buckling damage easily.

SUMMERY OF THE UTILITY MODEL

In order to solve the not enough of prior art, the utility model provides a mattress that leakproofness is good plays limiting displacement to the socket through set up the locating part on the plug, ensures plug and socket stable connection, ensures the connection leakproofness between built-in nest of tubes and external nest of tubes, promotes to use and experiences.

The utility model discloses a following mode realizes: the utility model provides a mattress that leakproofness is good, includes air cushion layer and the outer air pump box of arranging the air cushion layer in, is equipped with the air pump in the air pump box, air pump and air cushion layer are led to through the pipeline and are linked to each other, the pipeline is including dividing built-in nest of tubes and external nest of tubes of putting in the air pump box, built-in nest of tubes expose in the gas outlet of air pump box pass through joint Assembly with the air inlet of external nest of tubes leads to even, joint Assembly is including setting up socket on built-in nest of tubes gas outlet and setting up the plug on external nest of tubes air inlet, be equipped with reducible locating part on the plug, the plug inserts the socket and puts the location through the locating part card to make built. Set up the locating part on original socket for plug and socket that the installation target in place can be through locating part card position location, effectively prevent socket and plug and take place the condition of pine and take off because of exogenic action in the use, ensure that the high-pressure gas that the air pump box produced can accurately carry to the air cushion in situ effectively, promote gas transmission stability, and then promote and use experience.

Preferably, the plug includes a housing and a position-limiting member exposed from the housing, the air inlet of the external pipe set is inserted into the housing, the end of the air outlet of the internal pipe set is provided with a positioning groove, and after the plug is inserted into the socket, the inner end of the position-limiting member is radially clamped into the positioning groove, so that the plug and the socket are fixedly connected. Built-in nest of tubes and external nest of tubes realize the expert through the axial plug bush and link to each other, and the locating part goes into the constant head tank through radial card and carries out the axial counterpoint to built-in nest of tubes and external nest of tubes, plays the anticreep effect.

As preferred, the air inlet department of external nest of tubes is equipped with the seal assembly, the seal assembly including the built-in linking pipe that seals the stopper and with seal stopper complex spacing spring, link up and be equipped with on the pipe inner wall and seal the sealed area that the stopper matches, spacing spring orders about the stopper in linking intraductal axial displacement to the messenger seals the stopper and removes to the sealed station with sealed area separation by the logical station of linking up who contradicts with the sealed area. The subassembly of sealing orders about through spacing spring and seals the stopper and reset, seals the stopper and can switch to sealed station when plug and socket separation to make the air cushion layer internal gas pressure keep invariable, prevent that the air cushion layer from taking place the condition of damaging because of excessive deformation, can also switch to leading to the station after the plug inserts the socket, make things convenient for the air pump box to carry high-pressure gas to the air cushion layer.

Preferably, the shell comprises a bottom shell and an upper cover, a clamping strip is arranged on the bottom shell, and the connecting pipe is clamped and positioned on the bottom shell through the clamping strip so as to be axially limited. The holding strip is fixedly connected to the bottom shell through a fastener, plays a role in vertically clamping the connecting pipe, and ensures that the sealing plug can be flexibly switched between a sealing station and a communicating station by improving the axial positioning stability of the connecting pipe.

Preferably, the limiting part is L-shaped and comprises a pressing unlocking part and a vertically-arranged triggering part, the pressing unlocking part is transversely arranged and exposed out of the shell, a reset spring is arranged in the shell, the pressing unlocking part is pressed to move downwards and compress the reset spring, so that the triggering part is radially separated from the positioning groove, a notch of the limiting groove is formed downwards, when a user presses the unlocking part from top to bottom, the triggering part is downwards separated from the limiting groove, a plug is conveniently separated from a socket, the internal pipe group and the external pipe group are conveniently detached, the sealing plug can be ensured to move to a sealing station from a communication station under the action of the reset spring, and the outline of the air cushion layer is kept.

Preferably, the reset spring is clamped between the top surface of the clamping strip and the bottom surface of the pressing unlocking part, and the reset spring drives the trigger part to be radially clamped in the positioning groove. The bottom end of the reset spring is lapped on the clamping strip, the top end of the reset spring is abutted to the bottom surface of the pressing unlocking part, and the reset spring drives the trigger part to move upwards and be clamped into the limiting groove.

Preferably, the internal pipe set comprises a plurality of internal single pipes arranged in a matrix shape, and the external pipe set comprises external single pipes which correspond to the internal single pipes one by one. The air cushion layer is provided with a plurality of regions capable of independently controlling the hardness by increasing the number of the built-in single tubes and the number of the external single tubes, so that the comfort is improved.

Preferably, the socket comprises a lantern ring arranged on the surface of the air pump box and a fixed pipe inserted and connected onto the lantern ring, one end of the fixed pipe is communicated with an air outlet of the internal pipe group, and the other end of the fixed pipe penetrates through the lantern ring to be exposed and communicated with the external pipe group. The fixed pipe has both played the effect of leading to with built-in nest of tubes, still plays and exposes and supply the effect of plug grafting, and fixed pipe passes through the lantern ring rigid coupling on the air pump box, ensures to lead to stability with external nest of tubes.

Preferably, the air pump box is provided with a mounting frame with a through hole, and the lantern ring is inserted into the through hole and is buckled on the mounting frame. The mounting bracket rigid coupling is on the air pump box, and the lantern ring is planted the lock joint in the through-hole, and the convenience is through dismantling the lantern ring to come built-in nest of tubes to detach the air pump box.

Preferably, the outer peripheral wall of the lantern ring is provided with a buckling groove, and the periphery of the through hole is radially inserted into the buckling groove so that the lantern ring is fastened and fixed with the mounting rack. One side wall surface of the buckle groove can be deformed, and during installation, the periphery of the through hole is avoided through deformation of one side wall surface of the buckle groove, so that the periphery of the through hole is clamped in the buckle groove, and the lantern ring is positioned.

Preferably, the fixed pipe radially extends outwards to form a connecting lug, the inner side of the through hole is provided with a screw connecting column, and after the fixed pipe is installed in place, the connecting lug is fixedly connected to the screw connecting column through a fastening piece, so that the fixed pipe and the mounting frame are fixedly connected and positioned. Fixed pipe passes through engaging lug and spiro union post rigid coupling to make fixed pipe and mounting bracket cooperation press from both sides tight lantern ring, promote joint strength.

Preferably, the inner edge of the lantern ring is sunken to form an embedded groove, the fixed pipe extends outwards in the radial direction to form a limiting plate, after the fixed pipe is installed in place, the fixed pipe penetrates through the lantern ring, and the limiting plate is embedded and positioned in the embedded groove. The limiting plate is matched and attached to the wall surface of the caulking groove, the axial limiting and radial positioning effects are achieved on the fixed pipe, and the connection stability between the fixed pipe and the lantern ring is effectively improved.

The utility model has the advantages that: the limiting piece is additionally arranged on the original socket, so that the plug and the socket which are installed in place can be clamped and positioned through the limiting piece, the situation that the socket and the plug are loosened due to external force in the using process is effectively prevented, high-pressure gas generated by the air pump box can be accurately and effectively conveyed into the air cushion layer, the gas conveying stability is improved, and the use experience is further improved; in addition, the subassembly of sealing orders about through spacing spring and seals the stopper and reset, seals the stopper and can switch to sealed station when plug and socket separation to make air cushion layer internal gas pressure keep invariable, prevent that the air cushion layer from taking place the condition of damaging because of excessive deformation, can also switch to the station of leading to after the plug inserts the socket, make things convenient for the air pump box to carry high-pressure gas to the air cushion layer.

Drawings

FIG. 1 is a schematic view of a partial cross-section of the assembly structure of the present invention;

FIG. 2 is a schematic view of the structure of the air pump box;

FIG. 3 is a schematic cross-sectional view of the plug and receptacle when disassembled;

FIG. 4 is a schematic cross-sectional view of the plug and receptacle assembly;

FIG. 5 is a schematic view of a disassembled structure of the plug and the socket;

FIG. 6 is a schematic view of a mounting frame structure;

FIG. 7 is a schematic view of a collar construction;

in the figure: 1. the air pump comprises an air pump box, 2, an internal pipe group, 3, an external pipe group, 4, a socket, 5, a plug, 6, a limiting piece, 7, a positioning groove, 8, a connecting pipe, 9, a sealing plug, 10, a limiting spring, 11, a bottom shell, 12, an upper cover, 13, a clamping strip, 14, a pressing unlocking part, 15, a triggering part, 16, a reset spring, 17, a fixing pipe, 18, a lantern ring, 19, a through hole, 20, a limiting plate, 21, an installation frame, 22, a connecting lug, 23, a screw connection column, 24, a caulking groove, 25 and an air cushion layer.

Detailed Description

The essential features of the invention will be further explained below with reference to the drawings and the detailed description of the invention.

As shown in fig. 1 and 2, the mattress with good sealing performance is composed of an air cushion layer 25 and an air pump box 1 externally arranged on the air cushion layer 25, an air pump is arranged in the air pump box 1, the air pump is communicated with the air cushion layer 25 through a pipeline, the pipeline comprises an internal pipe set 2 and an external pipe set 3 which are respectively arranged inside and outside the air pump box 1, an air outlet of the internal pipe set 2 exposed out of the air pump box 1 is communicated with an air inlet of the external pipe set 3 through a connector assembly, the connector assembly comprises a socket 4 arranged on an air outlet of the internal pipe set 2 and a plug 5 arranged on an air inlet of the external pipe set 3, a resettable limiting part 6 is arranged on the plug 5, and the plug 5 is inserted into the socket 4 and is clamped and positioned through the limiting part 6, so that the internal pipe set 2 is. Add locating part 6 on original socket 4 for plug 5 and socket 4 that the installation targets in place can be put the location through locating part 6 card, prevent effectively that socket 4 and plug 5 from taking place the condition of pine and taking off because of exogenic action in the use, ensure that the high-pressure gas that air pump box 1 produced can be accurate carry to air cushion layer 25 effectively in, promote gas transmission stability, and then promote and use experience.

In this embodiment, the mattress includes spring layer, air cushion layer 25 and the comfortable layer of superpose in proper order from bottom to top, controls the softness and hardness of air cushion layer 25 through adjusting the air pressure numerical value in air cushion layer 25, and then provides comfortable lying experience for the user.

In this embodiment, the socket 4 is fixed to the air pump box 1 by a mounting bracket 21. Specifically, first, the mounting bracket 21 is fixedly connected to the air pump box 1; then, the air inlet end of the built-in pipe group 2 is communicated with the air outlet of the air pump, and the air outlet is sleeved on the inner end of the fixed pipe 17; then, the outer end of the fixed tube 17 is wiped to pass through the lantern ring 18 and is exposed; finally, the lantern ring 18 is inserted into the through hole 19, after the lantern ring is installed in place, the outer port of the fixed pipe 17 is exposed out of the air pump box 1, the lantern ring 18 plays a role in radially limiting the fixed pipe 17, and the fixed pipe 17 is fixedly connected with the mounting frame 21 and plays a role in axially clamping and limiting the lantern ring 18.

In this embodiment, the plug 5 is mounted on the air inlet of the outer tube set 3. Specifically, the air inlet of the external pipe group 3 is sleeved on the inner port of the connecting pipe 8, and the outer port of the connecting pipe 8 is exposed out of the shell for inserting the outer port of the fixing pipe 17; the pressing unlocking part 14 swings upwards under the action of a return spring 16 and is connected with the top surface of the shell in a flush mode, a sealing plug 9 is arranged in the connecting pipe 8, and the sealing plug 9 is positioned at a sealing station under the action of a limiting spring 10.

In the present embodiment, the plug 5 is inserted into the socket 4, and the outer port of the fixing tube 17 is axially inserted into the outer port of the engaging tube 8 (as shown in fig. 3 and 4). In the process, the front port of the fixed tube 17 pushes the sealing plug 9 axially, so that the sealing plug 9 moves from the sealing station to the communicating station under the condition of overcoming the acting force of the limiting spring 10, the fixed tube 17 pushes the limiting part 6, so that the limiting part 6 drives the triggering part 15 to move downwards under the condition of overcoming the acting force of the resetting spring 16, after the fixed tube 17 is inserted in place, the triggering part 15 coincides with the radial projection of the limiting groove, the triggering part 15 is radially clamped into the limiting groove under the action of the resetting spring 16, so that the sealing plug 9 is positioned at the communicating station due to the fact that the side wall of the triggering part 15 is abutted against the side wall of the limiting groove, and the air outlet of the air pump is ensured to be communicated with the air cushion layer.

In this embodiment, the plug 5 includes a housing and a limiting member 6 (as shown in fig. 5) exposed out of the housing, an air inlet of the external pipe set 3 is inserted into the housing, a positioning groove 7 is disposed at an end of an air outlet of the internal pipe set, after the plug 5 is inserted into the socket 4, an inner end of the limiting member 6 is radially clamped into the positioning groove 7, so that the plug 5 is fixedly connected to the socket 4, the limiting member 6 is L-shaped, and includes a pressing unlocking portion 14 horizontally exposed out of the housing and a vertically-arranged triggering portion 15, a return spring 16 is disposed in the housing, the pressing unlocking portion 14 is pressed to move downward and compress the return spring 16, so that the triggering portion 15 is radially separated from the positioning groove 7, a notch of the positioning groove 7 is opened downward, a long hole for the fixing pipe 17 to penetrate and vertically disposed is formed in the triggering portion 15, the long hole can provide a space for the vertical movement of the limiting member 6, and a bottom edge of the long hole forms a triggering portion 15 radially clamped into the positioning groove 7, so that a user can drive the triggering portion 15 to be downwardly.

In this embodiment, the air inlet department of external nest of tubes 3 is equipped with the seal assembly, the seal assembly include that the built-in linking pipe 8 of sealing stopper 9 and with seal stopper 9 complex spacing spring 10, be equipped with on the 8 inner walls of linking pipe and seal the sealed area that stopper 9 matches, spacing spring 10 orders about to seal stopper 9 axial displacement in linking pipe 8 to the messenger seals stopper 9 and removes to the sealed station with sealed area separation by the logical station of linking with the sealed area conflict. It is outer little big in the reducing form that is in the linking pipe 8, and the middle part is equipped with the seal area who offers inwards, seal stopper 9 and outwards remove and make seal ring and seal area laminating under spacing spring 10 drives about and make air cushion layer 25 keep apart with external space after losing fixed pipe 17 pushing effect, the outer fringe diameter of sealing ring is less than the inner port diameter of linking pipe 8 in the sealed stopper 9 towards the spacing sealing ring of inner port periphery of air cushion layer 25 dorsad. When the fixed tube 17 is inserted into the socket 4, the sealing plug 9 moves inwards and disengages the sealing ring from the sealing area to form an air flow channel between the outer edge of the sealing ring and the inner port of the adapter tube 8.

In the present embodiment, the housing includes a bottom shell 11 and an upper cover 12, a clamping strip 13 is provided on the bottom shell 11, and the connecting tube 8 is clamped and positioned on the bottom shell 11 by the clamping strip 13, so that the connecting tube 8 is axially limited. The connecting pipe 8 is lapped on the bottom shell 11, and two ends of the holding strip 13 are fixedly connected on the bottom shell 11 through fasteners to play a role in clamping and positioning the connecting pipe 8.

In this embodiment, the return spring 16 is clamped between the top surface of the clamping bar 13 and the bottom surface of the press unlocking portion 14, and the return spring 16 drives the trigger portion 15 to be radially clamped in the positioning groove 7. The reset spring 16 applies a pretightening force to the pressing unlocking part 14, so that the triggering part 15 can be clamped into the limiting groove under the action of the reset spring 16, the situation that the fixed pipe 17 is loosened from the connecting pipe 8 due to the fact that the triggering part 15 is separated from the limiting groove is prevented, the conveying stability of high-pressure gas is ensured, and the control precision of the air pressure in the air cushion layer 25 is improved.

In actual operation, the internal pipe group 2 includes a plurality of internal single pipes arranged in a matrix shape, and the external pipe group 3 includes external single pipes corresponding to the internal single pipes one by one. The number of the built-in single tubes and the number of the external single tubes are matched with the number of the independent control areas of the inner shell of the air cushion layer 25, the arrangement structure of the built-in single tubes is consistent with that of the external single tubes, the built-in single tubes and the external single tubes are conveniently connected in an inserting mode, the assembly difficulty is reduced, and the sealing stability after assembly is improved.

In this embodiment, the socket 4 comprises a collar 18 disposed on the surface of the air pump box 1 and a fixing tube 17 inserted into the collar 18, wherein one end of the fixing tube 17 is connected to the air outlet of the inner tube set 2, and the other end of the fixing tube 17 passes through the collar 18 to be exposed and connected to the outer tube set 3. Fixed pipe 17 is many, and matches with the quantity of built-in single tube, and fixed pipe 17 lateral wall outwards extends, has both ensured fixed pipe 17 matching rigid coupling, can also form engaging lug 22, ensures engaging lug 22's structural strength.

In this embodiment, the fixing tube 17 extends radially outward to form a connection lug 22, a screw connection column 23 is arranged inside the through hole 19, and after the fixing tube is installed in place, the connection lug 22 is fixedly connected to the screw connection column 23 through a fastener, so that the fixing tube 17 and the installation frame 21 are fixedly connected and positioned. The air pump box 1 is provided with a mounting rack 21 with a through hole 19, and the lantern ring 18 is inserted into the through hole 19 and is buckled on the mounting rack 21. The connecting lug 22 and the threaded column 23 are arranged on the mounting frame 21, so that the fixing tube 17 and the lantern ring 18 can be independently and fixedly connected on the mounting frame 21 and are mutually limited. The number of the screw connection columns 23 is two (as shown in fig. 6), and the screw connection columns are respectively arranged on two sides of the fixed connection pipe, so that the connection stability of the fixed connection pipe is effectively improved.

In this embodiment, the outer peripheral wall of the collar 18 is provided with a fastening groove, and the periphery of the through hole 19 is radially inserted into the fastening groove, so that the collar 18 is fastened and fixed with the mounting frame 21. The inner edge of the lantern ring 18 is sunken to form an embedded groove 24 (as shown in fig. 7), the fixing pipe 17 extends outwards in the radial direction to form a limiting plate 20, after the fixing pipe 17 is installed in place, the fixing pipe 17 passes through the lantern ring 18, and the limiting plate 20 is embedded and positioned in the embedded groove 24. The interface contour of the caulking groove 24 is matched with the contour of the limiting plate 20, and the lantern ring 18 is embedded in the caulking groove 24, so that the external port of the fixed connecting pipe is exposed and the requirement of inserting the connecting pipe 8 is met.

In this embodiment, sealing rings are respectively disposed between the internal pipe group 2 and the fixed pipe 17, between the fixed pipe 17 and the connecting pipe 8, and between the connecting pipe 8 and the external pipe group 3, so as to ensure the sealing performance of the pipeline along the way. The sealing ring is provided with a sealing ring, so that the sealing performance between the sealing ring and the sealing area is effectively improved.

In this embodiment, the air cushion layer includes a plurality of independent partitions capable of independently adjusting air pressure, and the number of the built-in pipe sets, the fixed pipes, the connecting pipes, and the external pipe sets is the same as that of the independent partitions, and the air cushion layer plays a role in independently controlling the independent partitions. The number of the independent partitions is at least two, so that the use experience is effectively improved. The connecting pipe is multiple and is formed by integral injection molding. The fixed pipe is a plurality of, and forms through integrative moulding plastics.

Claims (10)

1. A mattress with good sealing performance comprises an air cushion layer (25) and an air pump box (1) arranged outside the air cushion layer, an air pump is arranged in the air pump box (1), the air pump is communicated with the air cushion layer through a pipeline, the pipeline comprises an internal pipe group (2) and an external pipe group (3) which are respectively arranged inside and outside the air pump box (1), it is characterized in that the air outlet of the internal pipe group (2) exposed out of the air pump box (1) is communicated with the air inlet of the external pipe group (3) through a joint component, the joint component comprises a socket (4) arranged on the air outlet of the internal pipe group (2) and a plug (5) arranged on the air inlet of the external pipe group (3), the plug (5) is provided with a resettable limiting piece (6), and the plug (5) is inserted into the socket (4) and clamped and positioned through the limiting piece (6) so that the internal pipe group (2) is in sealed communication with the external pipe group (3).

2. The mattress with good sealing performance as claimed in claim 1, wherein the plug (5) comprises a casing and a limiting member (6) exposed out of the casing, the air inlet of the external pipe set (3) is inserted into the casing, the end of the air outlet of the internal pipe set is provided with a positioning groove (7), and after the plug (5) is inserted into the socket (4), the inner end of the limiting member (6) is radially clamped into the positioning groove (7) so as to fixedly connect the plug (5) and the socket (4).

3. The mattress with good sealing performance according to claim 2, wherein a sealing assembly is arranged at the air inlet of the external pipe set (3), the sealing assembly comprises a connecting pipe (8) with a built-in sealing plug (9) and a limiting spring (10) matched with the sealing plug (9), a sealing area matched with the sealing plug (9) is arranged on the inner wall of the connecting pipe (8), and the limiting spring (10) drives the sealing plug (9) to axially move in the connecting pipe (8) so that the sealing plug (9) moves from a communicating station abutting against the sealing area to a sealing station separated from the sealing area.

4. A mattress with good sealing performance according to claim 3, wherein the casing comprises a bottom shell (11) and an upper cover (12), the bottom shell (11) is provided with a holding strip (13), and the connecting pipe (8) is clamped and positioned on the bottom shell (11) through the holding strip (13) so that the connecting pipe (8) is axially limited.

5. The mattress with good sealing performance as claimed in claim 2, wherein the limiting member (6) is L-shaped and comprises a pressing unlocking portion (14) which is transversely arranged and exposed out of the shell and a vertically arranged triggering portion (15), a return spring (16) is arranged in the shell, the pressing unlocking portion (14) is pressed to move downwards and compress the return spring (16), so that the triggering portion (15) is radially separated from the positioning groove (7).

6. A mattress with good sealing performance as claimed in claim 5, wherein the return spring (16) is clamped between the top surface of the clamping strip (13) and the bottom surface of the pressing unlocking part (14), and the return spring (16) drives the trigger part (15) to be radially clamped in the positioning groove (7).

7. The mattress with good sealing performance as claimed in claim 1, wherein the internal pipe set (2) comprises a plurality of internal single pipes arranged in a matrix shape, and the external pipe set (3) comprises external single pipes which correspond to the internal single pipes one by one.

8. A mattress with good sealing performance as claimed in any one of claims 1 to 7, wherein the socket (4) comprises a collar (18) arranged on the surface of the air pump box (1) and a fixed pipe (17) inserted and connected on the collar (18), one end of the fixed pipe (17) is communicated with the air outlet of the inner pipe group (2), and the other end of the fixed pipe passes through the collar (18) to be exposed and communicated with the outer pipe group (3).

9. A mattress with good sealing performance as claimed in claim 8, wherein the air pump box (1) is provided with a mounting frame (21) with a through hole (19), and the collar (18) is inserted into the through hole (19) and fastened on the mounting frame (21).

10. The mattress with good sealing performance as claimed in claim 9, wherein the outer peripheral wall of the collar (18) is provided with a fastening groove, and the periphery of the through hole (19) is radially inserted into the fastening groove so as to fasten and fix the collar (18) and the mounting frame (21); or the fixing pipe (17) extends outwards in the radial direction to form a connecting lug (22), a screw connecting column (23) is arranged on the inner side of the through hole (19), and after the fixing pipe is installed in place, the connecting lug (22) is fixedly connected to the screw connecting column (23) through a fastening piece, so that the fixing pipe (17) and the mounting frame (21) are fixedly connected and positioned; or the inner edge of the lantern ring (18) is sunken to form an embedding groove (24), the fixed pipe (17) extends outwards in the radial direction to form a limiting plate (20), after the fixing pipe is installed in place, the fixed pipe (17) penetrates through the lantern ring (18), and the limiting plate (20) is embedded and positioned in the embedding groove (24).

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