A pressurized oxygen-enriched vehicle

Abstract

This utility model discloses a pressurized oxygen-enriched vehicle, including a chassis and a pressurized oxygen-enriched cargo box. The cargo box is mounted on the chassis and has an expansion chamber inside. The expansion chamber can extend to one side of the cargo box to expand the pressurized oxygen-enriched space inside. The cargo box has a blocking part, and the expansion chamber has a limiting part. The blocking part and the limiting part cooperate to limit the extension length of the expansion chamber. A sealing structure is provided between the blocking part and the limiting part to ensure a sealed fit between the expansion chamber and the cargo box. This pressurized oxygen-enriched vehicle has the advantages of meeting the cargo box expansion requirements and achieving excellent sealing.

Description

Technical Field

[0001] This utility model relates to the field of mobile booster equipment technology, specifically to a booster oxygen-enriching vehicle. Background Technology

[0002] The low overall air pressure in high-altitude areas greatly disrupts the daily lives of people living there. While pressurized oxygen-enriched buildings have alleviated altitude sickness to some extent in fixed structures, pressurizing and sealing passenger transport vehicles during travel remains a technical challenge that needs to be addressed and overcome.

[0003] Existing pressurized passenger vehicles generally consist of a chassis and a cargo box mounted on the chassis. The cargo box contains a pressurized chamber that functions as a medical oxygen chamber for passengers. Due to the need for a sealed design, the pressurized chamber is typically fixed within the cargo box. For example, patent CN202490105U discloses a high-altitude pressurized medical support vehicle with the pressurized chamber fixed within the cargo box; patent application CN118928568A discloses a pressurized passenger vehicle based on a type of chassis, which has a sealed pressurized space fixed within the cargo box; and patent CN116001530A discloses a vehicle-mounted pressurized oxygen-enriched vehicle, where the interior of the cargo box forms a sealed space capable of oxygenation. However, the pressurized chamber, fixed within the cargo box, has a fixed and limited capacity, which cannot meet the needs of expanding the cargo box's capacity.

[0004] Although there are already expansion vehicles in the field of non-pressurized oxygen-enriched vehicles, such as the expansion broadcast vehicle disclosed in authorization announcement number CN118741021B, which includes a vehicle body, a main body of the vehicle, an expansion side compartment, a telescopic support component, and a telescopic drive mechanism, with the telescopic support component used to support the expansion side compartment and the telescopic drive mechanism used to drive the expansion side compartment to enter or exit the main body of the vehicle, in the field of pressurized oxygen-enriched vehicles, due to the need for pressurization and oxygen enrichment inside the vehicle body, high sealing requirements are required. If a movable expansion compartment is added inside the vehicle body, the sealing problem between the expansion compartment and the vehicle body will be difficult to solve with existing technologies. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a pressurized oxygen-enriched vehicle that meets the needs of expanding the cargo box and achieves excellent sealing requirements.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A pressurized oxygen-enriched vehicle includes a chassis and a pressurized oxygen-enriched cargo box. The cargo box is mounted on the chassis and has an expansion compartment inside. The expansion compartment can extend to one side of the cargo box to expand the pressurized oxygen-enriched space inside the cargo box. The cargo box has a blocking part, and the expansion compartment has a limiting part. The blocking part and the limiting part cooperate to limit the extension length of the expansion compartment. A sealing structure is provided between the blocking part and the limiting part to seal the expansion compartment with the cargo box.

[0008] As a further improvement to the above technical solution:

[0009] The blocking part is ring-shaped and is located on the inner wall of the vehicle body, while the limiting part is ring-shaped and is fitted onto the outer wall of the expansion compartment.

[0010] The sealing structure includes a flexible ring and a guide boss. The guide boss is located inside the blocking part or outside the limiting part. The flexible ring is sleeved outside the guide boss and is longer than the axial length of the guide boss.

[0011] The flexible ring arches outward from the center, and the outer periphery of the flexible ring is connected to the interior space of the vehicle body.

[0012] The blocking part and the limiting part are respectively provided with a fixing groove and a slot on opposite sides. One end of the flexible ring is fixed in the fixing groove and the other end is detachably snapped into the slot.

[0013] The expansion compartment slides into the vehicle body, and the rear side of the vehicle body is provided with an entrance and exit for the expansion compartment to enter and exit.

[0014] The expansion compartment is provided with a limiting part for limiting the depth of the expansion compartment into the vehicle body. The vehicle body is provided with a rear door at the entrance and exit, and the rear door is pressed against the expansion compartment when closed.

[0015] The vehicle body is equipped with a drive mechanism for sliding the expansion compartment.

[0016] The vehicle body includes a front body and a rear body, the expansion compartment is located in the rear body, and the blocking part is located on the rear body; the front body, the rear body, and the chassis are fixed as one piece; or the front body and the chassis are fixed as one piece, and the rear body and the chassis are detachably connected.

[0017] The carriage includes an inner shell, an outer shell, and a pressure-bearing inner liner sandwiched between the inner shell and the outer shell.

[0018] Compared with the prior art, the advantages of this utility model are:

[0019] This utility model discloses a pressurized oxygen-enriched vehicle. The expansion chamber extends to one side of the vehicle body, where it clamps the sealing structure between the blocking and limiting parts. This expands the pressurized oxygen-enriched space within the vehicle body. When the vehicle body is pressurized and oxygen-enriched, the clamping force of the blocking and limiting parts on the sealing structure is increased, thereby improving the sealing performance. On one hand, the extension of the expansion chamber expands the pressurized oxygen-enriched space within the vehicle body, meeting the need for increased vehicle body capacity. On the other hand, the sealing structure between the blocking and limiting parts ensures that the higher the air pressure inside the vehicle body, the greater the clamping force on the sealing structure, resulting in a better seal and achieving excellent sealing requirements. This effectively solves the sealing problem between the vehicle body and the expansion chamber.

[0020] The pressurized oxygen-enriched vehicle of this invention has an inner side of the blocking part facing the limiting part, and an outer side of the limiting part facing the blocking part. Due to the blocking effect of the guide boss between the blocking part and the limiting part, the flexible ring is prevented from being excessively clamped between the blocking part and the limiting part, thus improving the service life of the flexible ring. Furthermore, the guide boss guides the expansion and contraction of the flexible ring, ensuring that the flexible ring expands and contracts along the guide boss in a constant direction, further contributing to improved service life.

[0021] In this invention, the outer periphery of the flexible ring can be subjected to the air pressure inside the vehicle body, causing the middle part of the flexible ring to be subjected to an inward deformation force. This increases the clamping force between the flexible ring and the blocking and limiting parts, thereby improving the tightness and sealing degree. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the pressurized oxygen-enriched vehicle of this utility model.

[0023] Figure 2 This is a top view schematic diagram of the pressurized oxygen-enriched vehicle of this utility model.

[0024] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure of AA.

[0025] Figure 4 yes Figure 3 A magnified structural diagram at point B in the middle.

[0026] Figure 5 This is a three-dimensional structural diagram of the cargo box and chassis of the pressurized oxygen-enriched vehicle of this utility model.

[0027] Figure 6 This is a first-view three-dimensional structural diagram of the expansion chamber of the pressurized oxygen-enriched vehicle of this utility model.

[0028] Figure 7 This is a two-dimensional structural diagram of the expansion chamber of the pressurized oxygen-enriched vehicle of this utility model from a second perspective.

[0029] Figure 8This is a partial structural diagram of the cargo box of the pressurized oxygen-enriched vehicle of this utility model.

[0030] Figure 9 This is a schematic diagram of the drive mechanism of the pressurized oxygen-enriched vehicle of this utility model.

[0031] The labels in the diagram represent:

[0032] 1. Chassis; 2. Cargo box; 21. Front box; 22. Rear box; 23. Inner shell; 24. Outer shell; 25. Pressure-bearing inner liner; 26. Pressure-bearing surface; 27. Side door; 3. Expansion compartment; 31. Limiting part; 32. Bearing surface; 33. Opening; 4. Blocking part; 41. Fixing groove; 5. Limiting part; 51. Slot; 6. Sealing structure; 61. Flexible ring; 62. Guide boss; 7. Inlet / outlet; 8. Rear door; 9. Drive mechanism; 91. Gear; 92. Rack. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Figures 1 to 9This invention illustrates one embodiment of the pressurized oxygen-enriched vehicle. The pressurized oxygen-enriched vehicle of this embodiment includes a chassis 1 and a pressurized oxygen-enriched cargo box 2. The cargo box 2 is mounted on the chassis 1. An expansion chamber 3 is provided inside the cargo box 2. The expansion chamber 3 can extend to one side of the cargo box 2 to expand the pressurized oxygen-enriched space within the cargo box 2. A blocking part 4 is provided on the cargo box 2, and a limiting part 5 is provided on the expansion chamber 3. The blocking part 4 and the limiting part 5 cooperate to limit the extension length of the expansion chamber 3. A sealing structure 6 is provided between the blocking part 4 and the limiting part 5 to ensure a sealed fit between the expansion chamber 3 and the cargo box 2.

[0038] In this pressurized oxygen-enriched vehicle, the expansion chamber 3 can extend to one side of the vehicle body 2, where the blocking part 4 and the limiting part 5 clamp the sealing structure 6, thereby expanding the pressurized oxygen-enriched space inside the vehicle body 2. When the vehicle body 2 is pressurized and oxygen-enriched, the clamping force of the blocking part 4 and the limiting part 5 on the sealing structure 6 is increased, thus improving the sealing degree. On the one hand, by extending the expansion chamber 3, the pressurized oxygen-enriched space inside the vehicle body 2 can be expanded to meet the expansion requirements of the vehicle body 2. On the other hand, the sealing structure 6 is provided between the blocking part 4 and the limiting part 5. The higher the air pressure inside the vehicle body 2, the greater the clamping force on the sealing structure 6, and the better the seal, thus achieving excellent sealing requirements and effectively solving the sealing problem between the vehicle body 2 and the expansion chamber 3.

[0039] Furthermore, in this embodiment, the blocking part 4 is annular and is disposed on the inner wall of the carriage 2, and the limiting part 5 is annular and is fitted onto the outer wall of the expansion compartment 3. The annular shape can be circular, elliptical, polygonal, etc., as long as it fits the inner wall of the carriage 2 and the outer wall of the expansion compartment 3.

[0040] Furthermore, in this embodiment, the sealing structure 6 includes a flexible ring 61 and a guide boss 62. The guide boss 62 is located inside the blocking portion 4 or outside the limiting portion 5. The flexible ring 61 is sleeved on the guide boss 62 and is longer than the axial length of the guide boss 62. The inner side of the blocking portion 4 faces the limiting portion 5, and the outer side of the limiting portion 5 faces the blocking portion 4. Due to the blocking effect of the guide boss 62 between the blocking portion 4 and the limiting portion 5, the blocking portion 4 and the limiting portion 5 are prevented from excessively clamping the flexible ring 61, thereby improving the service life of the flexible ring 61. In addition, the guide boss 62 can guide the expansion and contraction of the flexible ring 61, so that the flexible ring 61 expands and contracts along the guide boss 62 in a constant direction, further improving its service life. Preferably, both the flexible ring 61 and the guide boss 62 are annular in shape and adapted to the shape of the blocking portion 4.

[0041] Furthermore, in this embodiment, the center of the flexible ring 61 arches outward, and the outer periphery of the flexible ring 61 communicates with the internal space of the vehicle body 2. In this way, the outer periphery of the flexible ring 61 can be subjected to the air pressure inside the vehicle body 2, causing the center of the flexible ring 61 to be subjected to an inward deformation force, thereby increasing the clamping force between the flexible ring 61 and the blocking part 4 and the limiting part 5, so as to improve the degree of clamping and sealing.

[0042] Furthermore, such as Figure 4 As shown, in this embodiment, the blocking part 4 and the limiting part 5 are respectively provided with a fixing groove 41 and a locking groove 51 on opposite sides. One end of the flexible ring 61 is fixed in the fixing groove 41, and the other end is detachably locked with the locking groove 51. Specifically, the fixing groove 41 is provided on the blocking part 4, the locking groove 51 is provided on the limiting part 5, and the guide boss 62 is provided on the blocking part 4. In other embodiments, the fixing groove 41 is provided on the limiting part 5, the locking groove 51 is provided on the blocking part 4, and the guide boss 62 is provided on the limiting part 5. The flexible ring 61 and the blocking part 4 are fixedly engaged by the fixing groove 41. For example, the fixing groove 41 is set as an arc groove with an arc greater than 180°. One end of the flexible ring 61 is a fixed end that is adapted to the fixing groove 41. On the one hand, it is convenient to squeeze the fixed end of the flexible ring 61 into the fixing groove 41. On the other hand, the fixing groove 41 has a circumferential clamping force on the fixed end of the flexible ring 61, which can prevent the flexible ring 61 from detaching. The other end of the flexible ring 61 is designed as a snap-fit ​​end that can be separably snapped into the slot 51. The slot 51 and the snap-fit ​​end of the flexible ring 61 can be separated. For example, the slot 51 can be designed as an arc-shaped groove with an arc angle of less than 180°. Under compression deformation, the snap-fit ​​end of the flexible ring 61 can be tightly engaged with the slot 51. When the compression pressure is released, the snap-fit ​​end of the flexible ring 61 can be separated from the slot 51 and moved out from the opening of the slot 51. Furthermore, the groove-shaped structure can increase the mating area with the flexible ring 61, improving the sealing performance.

[0043] Furthermore, in this embodiment, the expansion compartment 3 is slidably fitted with the vehicle body 2, and the rear side of the vehicle body 2 is provided with an inlet / outlet 7 for the expansion compartment 3 to enter and exit. The slidable fit between the expansion compartment 3 and the vehicle body 2 facilitates the movement of the expansion compartment 3. Preferably, the expansion compartment 3 and the vehicle body 2 can achieve a slidable fit through a guide rail and guide groove, or through a pulley and guide rail, or other existing slidable fit methods. The expansion compartment 3 enters and exits from the rear side of the vehicle body 2, which can meet the usage requirements of existing Class I and Class II chassis 1.

[0044] Furthermore, such as Figure 5 and Figure 6 As shown, the expansion compartment 3 has protruding pressure-bearing surfaces 26 on both sides, and the carriage 2 has bearing surfaces 32 on both sides. The pressure-bearing surfaces 26 on both sides of the expansion compartment 3 are supported on the bearing surfaces 32 on both sides of the carriage 2 and slide in cooperation with the bearing surfaces 32.

[0045] Furthermore, such as Figure 6 and Figure 7As shown, in this embodiment, the expansion compartment 3 is provided with a limiting part 31 for limiting the depth of the expansion compartment 3 extending into the vehicle body 2. The vehicle body 2 is provided with a rear door 8 at the inlet / outlet 7. When the rear door 8 is closed, it abuts against the expansion compartment 3. When the expansion compartment 3 is retracted into the vehicle body 2 to its maximum depth, the limiting part 31 abuts against the vehicle body 2 (the vehicle body 2 is provided with a blocking part for blocking the limiting part 31). At this time, the rear door 8 is closed, and the rear door 8 abuts against the expansion compartment 3. That is, the sliding of the expansion compartment 3 is restricted by the combined action of the rear door 8 and the blocking part.

[0046] Furthermore, in this embodiment, the carriage 2 is provided with a drive mechanism 9 for driving the expansion compartment 3 to slide. For example... Figure 9 As shown, the drive mechanism 9 may include a gear 91, a rack 92, and a drive motor 93. The rack 92 is fixed to the expansion compartment 3, the gear 91 is mounted on the vehicle body 2 and meshes with the rack 92, and the drive motor 93 is connected to the gear 91, driving the gear 91 to rotate, thereby pushing the rack 92 and the expansion compartment 3 to move. Of course, the drive mechanism 9 may also be an existing drive mechanism such as a telescopic mechanism or a hoisting mechanism.

[0047] Furthermore, in this embodiment, the vehicle body 2 includes a front body 21 and a rear body 22, with an expansion compartment 3 disposed within the rear body 22 and a blocking part 4 disposed on the rear body 22; the front body 21, the rear body 22, and the chassis 1 are fixed as one unit (i.e., a type I chassis); or the front body 21 and the chassis 1 are fixed as one unit, and the rear body 22 and the chassis 1 are detachably connected (i.e., a type II chassis). That is, the expansion compartment 3 can be used for both type I and type II chassis.

[0048] Furthermore, such as Figure 8 As shown, in this embodiment, the vehicle body 2 includes an inner shell 23, an outer shell 24, and a pressure-bearing inner liner 25 sandwiched between the inner shell 23 and the outer shell 24.

[0049] Furthermore, such as Figure 7 As shown, in this embodiment, the front of the expansion compartment 3 is open, forming an opening 33 that communicates with the interior of the vehicle body 2. The interior of the expansion compartment 3 is connected to the interior of the vehicle body 2 through the opening 33.

[0050] Furthermore, such as Figure 1 and Figure 5 As shown in this embodiment, the front of the carriage 2 is provided with a side door 27 to facilitate personnel entering and exiting the carriage 2.

[0051] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A pressurized oxygen enriched vehicle comprising a chassis (1) and a pressurized oxygen enriched vehicle cabin (2) arranged on the chassis (1), characterized in that: The carriage (2) is provided with an expansion chamber (3), which can extend to one side of the carriage (2) to expand the pressurized oxygen-enriched space inside the carriage (2). The carriage (2) is provided with a blocking part (4), and the expansion chamber (3) is provided with a limiting part (5). The blocking part (4) and the limiting part (5) cooperate to limit the extension length of the expansion chamber (3). A sealing structure (6) is provided between the blocking part (4) and the limiting part (5) to make the expansion chamber (3) and the carriage (2) seal together.

2. The pressurized oxygen enriched vehicle of claim 1, wherein: The blocking part (4) is annular and is located on the inner wall of the carriage (2), and the limiting part (5) is annular and is fitted on the outer wall of the expansion compartment (3).

3. The pressurized oxygen enriched vehicle of claim 2, wherein: The sealing structure (6) includes a flexible ring (61) and a guide boss (62). The guide boss (62) is located inside the blocking part (4) or outside the limiting part (5). The flexible ring (61) is sleeved outside the guide boss (62) and is longer than the axial length of the guide boss (62).

4. The pressurized oxygen-enriched vehicle according to claim 3, characterized in that: The flexible ring (61) arches outward from the center, and the outer periphery of the flexible ring (61) is connected to the interior space of the vehicle body (2).

5. The pressurized oxygen-enriched vehicle according to claim 3, characterized in that: The blocking part (4) and the limiting part (5) are respectively provided with a fixing groove (41) and a card slot (51) on opposite sides. One end of the flexible ring (61) is fixed in the fixing groove (41), and the other end is detachably connected to the card slot (51).

6. The pressurized oxygen-enriched vehicle according to any one of claims 1 to 5, characterized in that: The expansion compartment (3) is slidably fitted with the carriage (2), and the rear side of the carriage (2) is provided with an entrance and exit (7) for the expansion compartment (3) to enter and exit.

7. The pressurized oxygen-enriched vehicle according to claim 6, characterized in that: The expansion compartment (3) is provided with a limiting part (31) for limiting the depth of the expansion compartment (3) into the carriage (2). The carriage (2) is provided with a rear door (8) at the entrance (7). When the rear door (8) is closed, it abuts against the expansion compartment (3).

8. The pressurized oxygen-enriched vehicle according to claim 6, characterized in that: The carriage (2) is equipped with a drive mechanism (9) for sliding the expansion compartment (3).

9. The pressurized oxygen-enriched vehicle according to any one of claims 1 to 5, characterized in that: The vehicle body (2) includes a front body (21) and a rear body (22), the expansion compartment (3) is located inside the rear body (22), and the blocking part (4) is located on the rear body (22); the front body (21), the rear body (22) and the chassis (1) are fixed as one unit; or the front body (21) and the chassis (1) are fixed as one unit, and the rear body (22) and the chassis (1) are detachably connected.

10. The pressurized oxygen-enriched vehicle according to any one of claims 1 to 5, characterized in that: The carriage (2) includes an inner shell (23), an outer shell (24), and a pressure-bearing inner liner (25) sandwiched between the inner shell (23) and the outer shell (24).

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