Rotatable structure for air inflation port of air inflation bag

Abstract

The utility model relates to the technical field of inflatable bags, and discloses a rotatable structure for an inflatable port of an inflatable bag, which comprises an I-shaped positioning shaft mounted on the surface of the inflatable bag; the rotating shaft is rotatably arranged in the positioning shaft, one side of the rotating shaft extends outwards to form an extension plate, a positioning bolt is arranged on the surface of the extension plate, and the positioning bolt penetrates through the extension plate to be connected with the surface of the positioning shaft; the plastic sealing shaft is inserted into the plastic rotating shaft; the L-shaped inflation tube penetrates through the plastic sealing shaft, and the surface of one end of the L-shaped inflation tube is flush with the surface of one side of the plastic sealing shaft. The connecting structure is simple and low in cost, the cost of the inflatable bag is not increased, the service life of the connecting structure can be prolonged, the maintenance frequency is reduced compared with the arrangement of the connecting structure, meanwhile, when loss occurs, the inflatable bag does not need to be wholly replaced, only the rotating structure part needs to be replaced, and the maintenance cost can be relatively reduced.

Description

Technical Field

[0001] This utility model relates to the field of inflatable bag technology, specifically to a rotatable structure for the inflation port of an inflatable bag. Background Technology

[0002] With the widespread application of airbag technology, inflatable bags are widely used in various fields such as medical auxiliary equipment, cushioning packaging, emergency safety devices, shock-absorbing pads, and inflatable support structures. In actual use, the structure of the inflatable port of the bag directly affects its inflation efficiency, sealing performance, and ease of subsequent maintenance. Currently, most common inflatable ports are fixed structures, meaning the inflator body is fixed to the bag body and cannot be adjusted in direction or angle during inflation. This structure presents many inconveniences in practical use. For example, in scenarios with limited space or complex pipeline layouts, inflation operations are difficult to complete smoothly, and the inflation tube is prone to twisting and pulling, which in turn affects the reliability of the sealing connection and the inflation effect.

[0003] In addition, although some inflation ports use flexible hoses, they are prone to folding and blockage or misalignment after use due to a lack of structural support, affecting their applicability. In response to the multiple requirements of flexible connection, rotation adjustment and stable sealing in complex application environments, the existing technology still lacks a universal inflation port structure that is simple in structure, flexible in rotation, has good sealing performance and can be applied to multiple types of bags.

[0004] In view of the above, this application proposes a rotatable structure for the inflation port of an inflatable bag to solve the above problems, and to solve the problems of inconvenience in inflation, lack of flexibility, and high maintenance costs that require replacement of the entire inflatable bag due to rigid connection of the port in the prior art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a rotatable structure for the inflation port of an inflatable bladder, thus solving the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A rotatable structure for the inflation port of an inflatable bladder includes,

[0008] The positioning shaft, which is I-shaped, is installed on the surface of the inflatable bag.

[0009] A rotating shaft is rotatably disposed inside a positioning shaft. One side of the rotating shaft extends outward to form an extension plate. The surface of the extension plate is provided with positioning bolts, which penetrate the extension plate and connect to the surface of the positioning shaft.

[0010] The plastic sealing shaft is arranged in the rotating shaft, and the surface of the plastic sealing shaft is matched with the shape of the inner cavity of the rotating shaft, so that the plastic sealing shaft moves linearly up and down along the inner cavity of the rotating shaft.

[0011] The L-shaped inflation pipe is arranged through the plastic sealing shaft, and one end surface of the L-shaped inflation pipe is flush with one side surface of the plastic sealing shaft.

[0012] Optionally, the extension plate is provided with a threaded groove, and the threaded groove comprises an upper region and a lower region.

[0013] The diameter of the upper region is matched with the diameter of the positioning bolt.

[0014] The diameter of the lower region gradually increases from the connection position with the upper region.

[0015] Optionally, the positioning bolt comprises a screw rod and an anti-skid pad.

[0016] The surface of the screw rod is threadedly connected with the upper region.

[0017] The anti-skid pad is arranged at one end of the screw rod and located in the lower region and in contact with the positioning shaft.

[0018] Optionally, the middle part of the surface of the rotating shaft is outwardly protruded to form a ring shaft, the middle part of the ring shaft is inwardly recessed to form a ring groove, and the positioning shaft is provided with a clamping groove matched with the ring shaft and the ring groove.

[0019] Optionally, the inner cavity of the rotating shaft is protruded to form a clamping block in the middle part, and the surface shape of the plastic sealing shaft is matched with the clamping block.

[0020] Optionally, the inner cavity of the rotating shaft is divided into an A region and a B region.

[0021] The diameter of the A region is matched with the diameter of the plastic sealing shaft.

[0022] The diameter of the B region is smaller than that of the A region.

[0023] Optionally, a stainless steel supporting shaft is arranged in the plastic sealing shaft.

[0024] Optionally, a threaded shaft is arranged on the surface of the end of the L-shaped inflation pipe away from the plastic sealing shaft, and the threaded shaft is threadedly connected with the inner cavity of the external conveying pipe.

[0025] The utility model provides a rotatable structure for the inflation port of an inflatable bag, which has the following beneficial effects:

[0026] 1. The positioning shaft, the rotating shaft and the L-shaped inflation pipe are matched to realize free rotation during inflation and reduce the occurrence of pulling and other situations.

[0027] 2. The fit between the plastic sealing shaft and the rotating shaft allows for easy insertion and disassembly when not in use, making operation convenient and easy to control.

[0028] 3. The connection structure is simple and inexpensive, and does not increase the cost of the airbag. The design of this application can extend its service life and reduce the frequency of maintenance. In the event of wear and tear, it is not necessary to replace the entire airbag; only the rotating structure needs to be replaced, which can relatively reduce maintenance costs. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the plastic sealing shaft structure of this utility model;

[0031] Figure 3 This is a schematic diagram of the rotating shaft structure of this utility model;

[0032] Figure 4 This is a schematic diagram of the threaded shaft structure of this utility model;

[0033] Figure 5 This is a schematic diagram of the positioning bolt structure of this utility model;

[0034] Figure 6 This is a schematic diagram of the support shaft structure of this utility model;

[0035] Figure 7 This is a schematic diagram of the rotating shaft structure of this utility model.

[0036] In the diagram: 1. Positioning shaft; 101. Locking groove; 11. Inflatable bag; 2. Rotating shaft; 201. Ring shaft; 202. Ring groove; 203. Locking block; 204. Area A; 205. Area B; 21. Extension plate; 211. Threaded groove; 2111. Upper area; 2112. Lower area; 22. Positioning bolt; 221. Screw; 222. Anti-slip pad; 3. Plastic sealing shaft; 31. Support shaft; 4. L-shaped inflation tube; 41. Threaded shaft; 5. Delivery tube. Detailed Implementation

[0037] In order to make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0038] In the description of this utility model, it should be understood that the terms "lateral", "longitudinal", "end", "edge", "sidewall", "upper", "lower", "upper part", "lower part", "directly above", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "end", "head", "tail", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of 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.

[0039] This application proposes a rotatable structure for the inflation port of an inflatable bladder, as detailed below;

[0040] For reference Figures 1-4 This application mainly consists of a positioning shaft 1, a rotating shaft 2, a plastic sealing shaft 3, and an L-shaped inflation tube 4 connected together. The structure is set on the inflatable bag 11 and connected to the inflation device through the delivery pipe 5 to achieve the effect of inflating the inside of the inflatable bag 11. During the inflation process, the L-shaped inflation tube 4 can rotate in a ring, thereby reducing the pulling at the connection with the inflatable bag 11, reducing wear and tear, and increasing its service life.

[0041] For reference Figures 1-4 The positioning shaft 1 is I-shaped and installed on the surface of the inflatable bag 11. One end of the positioning shaft 1 is inserted into the inside of the inflatable bag 11, while the other end is exposed on the outside of the inflatable bag 11; thus, it is fixedly mounted on the inflatable bag 11. To further prevent the positioning shaft 1 from being squeezed and deformed during use, affecting its stability, a fixing plate with a volume larger than that of the positioning shaft 1 is provided on the inflatable bag 11 (see reference). Figure 1 The positioning shaft 1 is installed through the fixed plate, and the fixed plate can reduce the deformation near the edge of the positioning shaft 1.

[0042] For reference Figures 1-4 The rotating shaft 2 is located inside the positioning shaft 1 and can rotate within the rotating shaft 2. Since the positioning shaft 1 is fixed, the rotating shaft 2 will not affect each other during rotation, thus preventing unstable rotation.

[0043] Specifically, to achieve the rotation effect of the rotating shaft 2, the rotating shaft 2 is further configured such that the center of its surface protrudes outward to form a ring shaft 201, and the center of the ring shaft 201 is recessed inward to form a ring groove 202. The positioning shaft 1 is provided with a locking groove 101 to fit the ring shaft 201 and the ring groove 202. The inner cavity of the rotating shaft 2 protrudes towards the center to form a locking block 203, and the surface shape of the plastic sealing shaft 3 is adapted to the locking block 203. The locking relationship between the two sides makes the rotating shaft 2 stably connected in the positioning shaft 1, and also reduces the frequency of its shaking.

[0044] To prevent the rotating shaft 2 from rotating automatically due to collision after being adjusted in position, an extension plate 21 is formed by extending outward from one side of the rotating shaft 2. The surface of the extension plate 21 is provided with positioning bolts 22, which pass through the extension plate 21 and connect to the surface of the positioning shaft 1. The movement of the positioning bolts 22 causes the rotating shaft 2 to be positioned on the positioning shaft 1, thereby reducing the frequency of rotation.

[0045] Furthermore, to ensure a more stable fixation of the positioning bolt 22, the section on the extension plate 21 that supports the positioning bolt 22 is optimized. The extension plate 21 is provided with a threaded groove 211, which is used to receive the insertion of the positioning bolt 22. The threaded groove 211 includes an upper section 2111 and a lower section 2112. The diameter of the upper section 2111 is adapted to the diameter of the positioning bolt 22, and the diameter of the lower section 2112 gradually increases from the connection with the upper section 2111, making the lower section 2112 present a tapered transition section. At this time, the diameter of the end facing the positioning shaft 1 will be larger than the diameter of the positioning bolt 22, so that the positioning bolt 22 can better connect with the surface of the positioning shaft 1, and the clamping effect is better after adjustment and pressing against the positioning shaft 1.

[0046] Furthermore, to reduce friction and slippage between the positioning bolt 22 and the positioning shaft 1 during positioning, the positioning bolt 22 is further configured to include two parts: a screw 221 and an anti-slip pad 222. The surface of the screw 221 is threaded to the upper region 2111, and the anti-slip pad 222 is located at one end of the screw 221, inside the lower region 2112, in contact with the positioning shaft 1. The anti-slip pad 222 reduces friction marks between the anti-slip pad and the positioning shaft 1, and increases the resistance after fixing, reducing the possibility of loosening due to automatic rotation. Due to the elasticity of the anti-slip pad 222, in conjunction with the diameter of the lower region 2112, the anti-slip pad 222 will compress during use, thereby increasing its diameter and improving its grip, thus increasing the stability of the connection between the anti-slip pad 222 and the positioning shaft 1.

[0047] For reference Figures 1-4The L-shaped inflation tube 4 passes through the plastic sealing shaft 3, with one end of its surface flush with one side of the plastic sealing shaft 3. The L-shaped inflation tube 4 is inserted into the rotating shaft 2 through the plastic sealing shaft 3. During operation, the plastic sealing shaft 3 increases the stability of the connection and the sealing during inflation. Inflation is completed through the L-shaped inflation tube 4. A threaded shaft 41 is provided on the surface of the L-shaped inflation tube 4 away from the plastic sealing shaft 3. The threaded shaft 41 is threadedly connected to the inner cavity of the external delivery tube 5.

[0048] Furthermore, to prevent rotation between the plastic sealing shaft 3 and the rotating shaft 2 after insertion, the inner cavity of the rotating shaft 2 and the surface of the plastic sealing shaft 3 are further modified. The plastic sealing shaft 3 is inserted into the rotating shaft 2, and the surface of the plastic sealing shaft 3 is adapted to the shape of the inner cavity of the rotating shaft 2, so that the plastic sealing shaft 3 moves linearly up and down along the inner cavity of the rotating shaft 2 without shaking during insertion, thus preventing the internal rotating shaft 2 and the sealing plastic shaft 3 from rotating synchronously and causing rotational instability. Specifically, the inner cavity of the rotating shaft 2 is made to protrude towards the center as a locking block 203, and the surface shape of the plastic sealing shaft 3 is adapted to the locking block 203. After the plastic sealing shaft 3 is connected to the rotating shaft 2, the locking block 203 and the plastic sealing shaft 3 form a locking connection, thereby increasing the connection area, increasing its resistance, and reducing the possibility of rotation.

[0049] For reference Figure 6 The plastic sealing shaft 3 is made of anti-slip material, which reduces the risk of slipping outward after insertion and increases the stability of the connection. At the same time, in order to prevent the plastic sealing shaft 3 from deforming easily during use, a stainless steel support shaft 31 is set inside the plastic sealing shaft 3. The support shaft 31 maintains its shape, reduces its deformation, and avoids incompatibility with the rotating shaft 2.

[0050] For reference Figure 7 To avoid excessive insertion of the plastic sealing shaft 3 during insertion, the size of the inner cavity of the rotating shaft 2 is optimized by dividing the inner cavity of the rotating shaft 2 into area A 204 and area B 205. The diameter of area A 204 matches the diameter of the plastic sealing shaft 3, while the diameter of area B 205 is smaller than that of area A 204. Therefore, when the plastic sealing shaft 3 is inserted into the rotating shaft 2, the bottom of the plastic sealing shaft 3 will be blocked due to the size setting of area B 205, reducing the continuous downward movement of the plastic sealing shaft 3 and preventing it from exceeding the rotating shaft 2 and entering the airbag 11, thus affecting its connection and sealing effect.

[0051] In this invention, the working steps of the device are as follows:

[0052] 1. First, install the positioning shaft 1 and the rotating shaft 2 on the inflatable bag 11;

[0053] 2. Secondly, a plastic sealing shaft 3 is installed on the L-shaped inflation tube 4, with one end of the plastic sealing shaft 3 flush with one end of the L-shaped inflation tube 4.

[0054] 3. Then, insert the L-shaped inflation tube 4 with the plastic sealing shaft 3 onto the rotating shaft 2;

[0055] 4. Finally, connect the delivery pipe 5 to one end of the L-shaped inflation pipe 4 and connect the other end of the delivery pipe 5 to the gas delivery device. When the device starts to work, it delivers gas to the inflation bag 11 through the L-shaped inflation pipe 4. When the delivery pipe 5 needs to be adjusted during the process, the L-shaped inflation pipe 4 can rotate synchronously.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rotatable structure for the inflation port of an inflatable bladder, characterized in that: include, The positioning shaft (1), which is I-shaped, is installed on the surface of the inflatable bag (11); A rotating shaft (2) is rotatably disposed inside a positioning shaft (1). One side of the rotating shaft (2) extends outward to form an extension plate (21). The surface of the extension plate (21) is provided with a positioning bolt (22). The positioning bolt (22) passes through the extension plate (21) and connects to the surface of the positioning shaft (1). A plastic sealing shaft (3) is inserted into a rotating shaft (2). The surface of the plastic sealing shaft (3) is adapted to the shape of the inner cavity of the rotating shaft (2), so that the plastic sealing shaft (3) moves up and down in a straight line along the inner cavity of the rotating shaft (2). An L-shaped inflation tube (4) is installed through the plastic sealing shaft (3), with one end of its surface flush with one side of the plastic sealing shaft (3).

2. The rotatable structure for the inflation port of an inflatable bladder according to claim 1, characterized in that: The extension plate (21) is provided with a threaded groove (211), which includes an upper region (2111) and a lower region (2112); The diameter of the upper region (2111) is adapted to the diameter of the positioning bolt (22); The diameter of the lower region (2112) gradually increases from the point where it connects with the upper region (2111).

3. The rotatable structure for the inflation port of an inflatable bladder according to claim 2, characterized in that: The positioning bolt (22) includes a screw (221) and an anti-slip pad (222); The surface of the screw (221) is threadedly connected to the upper region (2111); The anti-slip pad (222) is located at one end of the screw (221) and is in contact with the positioning shaft (1) in the lower area (2112).

4. The rotatable structure for the inflation port of an inflatable bladder according to claim 1, characterized in that: The rotating shaft (2) has a ring shaft (201) that protrudes outward from the center of its surface, and a ring groove (202) that is recessed inward from the center of its surface. The positioning shaft (1) is fitted with a locking groove (101) to accommodate the ring shaft (201) and the ring groove (202).

5. The rotatable structure for the inflation port of an inflatable bladder according to claim 1, characterized in that: The inner cavity of the rotating shaft (2) protrudes towards the center to form a locking block (203), and the surface shape of the plastic sealing shaft (3) is adapted to the locking block (203).

6. The rotatable structure for the inflation port of an inflatable bladder according to claim 1, characterized in that: The inner cavity of the rotating shaft (2) is divided into area A (204) and area B (205); The diameter of area A (204) is compatible with the diameter of the plastic sealing shaft (3); The diameter of region B (205) is smaller than that of region A (204).

7. The rotatable structure for the inflation port of an inflatable bladder according to claim 1, characterized in that: The plastic sealing shaft (3) has a stainless steel support shaft (31) inside.

8. The rotatable structure for the inflation port of an inflatable bladder according to claim 1, characterized in that: The surface of the L-shaped inflation tube (4) away from the plastic sealing shaft (3) is provided with a threaded shaft (41), and the threaded shaft (41) is threadedly connected to the inner cavity of the external delivery tube (5).

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