Inflatable bathtub sleeve air inlet accessory assembling mechanism and inflatable bathtub sleeve

Abstract

The utility model relates to an air inlet accessory assembling mechanism for an inflatable bathtub sleeve, which can be used for processing the inflatable bathtub sleeve with an air inlet accessory. The assembling mechanism comprises a product positioning block, an automatic feeding component and a pushing component. The automatic feeding component achieves ordered conveying of air inlet accessories (such as suction pipes) through a hopper, a material stirring plate and a V-shaped stock bin, and it is guaranteed that the accessories are accurately positioned on a product positioning block. The pushing component accurately pushes the air inlet accessory into the air inlet or the inflation channel of the inflatable bathtub sleeve, and assembling is completed. The mechanism is further provided with a glue spraying component used for spraying glue to fix the air inlet accessory and preventing the air inlet accessory from deviating. In addition, the assembling mechanism is provided with an upper film traction roller, a lower film traction roller and a traction protection roller, stable traction and stacking of the covering film are achieved through adjustable installation blocks and strip-shaped holes, and meanwhile the covering film is protected against damage. And an adjustable V-shaped stock bin and a width adjusting plate are arranged in the hopper, so that the hopper is suitable for air inlet accessories of different specifications.

Description

Technical Field

[0001] This utility model specifically relates to an assembly mechanism for air inlet accessories of an inflatable bathtub cover and an inflatable bathtub cover. Background Technology

[0002] Utility model patent application CN217598213U discloses a novel inflatable bathtub cover, mainly composed of a bag body, a skirt, an air inlet cavity, and an air inlet. The air inlet cavity contains several sets of crisscrossing and interconnected inflation channels. When using this inflatable bathtub cover, it needs to be inflated to ensure all inflation channels expand, thus achieving the full function of the inflatable bathtub cover. However, this inflatable bathtub cover does not have any air inlet accessories. Since the bag body is made of disposable plastic and is generally soft, inflating it requires manually inserting the air inlet component at the end of the inflation mechanism into the air inlet. This is not only cumbersome but also prone to insufficient inflation, greatly affecting the usability of the bathtub cover. Therefore, it is necessary to add air inlet accessories to the existing bathtub cover.

[0003] The key issue is how to "produce inflatable bathtub covers with air intake components". For example, the utility model patent application with publication number "CN217597958U" discloses a new type of inflatable bathtub cover manufacturing machine, which mainly consists of a film coating and unwinding device, a rubber band welding device, an air channel imprinting device, a longitudinal folding device, a transverse welding device, and a cutting device. This bathtub cover manufacturing machine can realize the fully automatic production of inflatable bathtub covers with publication number "CN217598213U", but it cannot realize the "production of inflatable bathtub covers with air intake components".

[0004] In summary, this application proposes an assembly mechanism capable of "producing an inflatable bathtub sleeve with an air intake component". Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an assembly mechanism for air inlet accessories of an inflatable bathtub cover, which is able to "produce inflatable bathtub covers with air inlet accessories" to address the shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An assembly mechanism for air intake accessories of an inflatable bathtub cover, characterized in that: it includes a product positioning block, an automatic feeding component for orderly transporting air intake accessories to the product positioning block is provided above the product positioning block, and a pushing component for pushing the air intake accessories is provided at one end of the product positioning block.

[0008] Using the above technical solution, firstly, the product positioning block is used to accurately position the air intake components (including but not limited to straws), ensuring stable and precise positioning during installation into the inflatable bathtub cover. An automatic feeding component transports the air intake components orderly to the product positioning block. This process provides a continuous and stable supply of air intake components, avoiding the tedious manual handling and improving production efficiency. When the air intake component reaches the product positioning block, the pushing component begins to work, accurately pushing the component into the air inlet or air intake cavity of the inflatable bathtub cover, completing the assembly of the air intake component. This entire working principle results in a high degree of automation in the assembly process, effectively avoiding inaccurate assembly or low assembly efficiency caused by human error, thereby achieving efficient production of inflatable bathtub covers with air intake components.

[0009] The aforementioned air inlet fitting assembly mechanism for the inflatable bathtub cover can be further configured to include a glue spraying component located at the other end of the product positioning block. The glue spraying component includes a glue storage tank and a nozzle and pipe connected to the glue storage tank.

[0010] Using the above technical solution, the adhesive spraying component is used to spray adhesive onto the film covering the inflatable bathtub sleeve. When air intake accessories such as straws are assembled into the inflatable bathtub sleeve, the adhesive positions the air intake accessories such as straws to prevent them from deviating.

[0011] The above-mentioned inflatable bathtub sleeve air inlet accessory assembly mechanism can be further configured as follows: it also includes an upper film traction roller and a lower film traction roller that are distributed vertically opposite to each other. There is a material passage gap between the upper film traction roller and the lower film traction roller that can accommodate the air inlet accessory, and the material passage gap corresponds to the other end of the product positioning block. A traction protection roller is provided above the upper film traction roller.

[0012] Using the above technical solution, the upper film traction roller is used to pull the upper film layer, and the lower film traction roller is used to pull the lower film layer. After the two film layers pass through the material passage gap, they are stacked on top of each other. At the same time, the material passage gap can also help push air intake accessories such as suction tubes between the two film layers to complete the assembly. Among them, the traction protection roller not only further pulls the upper film layer, but also prevents the upper film layer from contacting the glue spraying parts and other working parts after passing through the traction protection roller, thereby protecting the film layer.

[0013] The above-mentioned inflatable bathtub sleeve air inlet accessory assembly mechanism can be further configured as follows: the two ends of the upper film traction roller are respectively rotatably connected to a first mounting block, the two ends of the lower film traction roller are respectively rotatably connected to a set of first mounting blocks, the two ends of the traction protection roller are respectively rotatably connected to a second mounting block, a frame is provided on the same side of the first mounting block and the second mounting block, the frame is provided with a first strip hole, and the first mounting block and the second mounting block are respectively connected to screw holes corresponding to the first strip hole.

[0014] By adopting the above technical solution, the design of the first strip hole allows the first mounting block and the second mounting block to move within a certain range along the direction of the strip hole. This allows the positions of the upper film traction roller, the lower film traction roller, and the traction protection roller to be finely adjusted according to actual production needs, in order to adapt to different sizes of film coating or air intake accessories. This improves the versatility and adaptability of the assembly mechanism, and at the same time helps to ensure that the film remains flat during the traction process, avoiding wrinkles or damage caused by uneven film tension, thereby improving product quality and production efficiency.

[0015] The above-mentioned inflatable bathtub sleeve air inlet accessory assembly mechanism can be further configured as follows: the product positioning block is provided with an arc-shaped positioning groove, the other end of the product positioning block is provided with a discharge guide block, the lower part of the discharge guide block is provided with a second strip hole, the product positioning block is provided with a screw connection hole corresponding to the second strip hole, and the upper part of the discharge guide block is provided with an arc-shaped guide groove communicating with the arc-shaped positioning groove.

[0016] Using the above technical solution, the arc-shaped positioning groove can better adapt to the shape of air intake accessories such as straws, ensuring that these accessories fall accurately onto the product positioning block, and the pushing component can more accurately push them. When the air intake accessories are pushed between the upper and lower layers of film, the arc-shaped guide groove on the discharge guide block further guides them, ensuring accurate entry between the two layers of film and improving assembly precision. A second strip-shaped hole and screw connection hole are designed to facilitate adjustment of the position of the discharge guide block.

[0017] The aforementioned inflatable bathtub sleeve air inlet accessory assembly mechanism can be further configured as follows: the automatic feeding component includes a hopper and a feeding plate. The hopper is provided with a V-shaped hopper and a product discharge channel distributed below and connected to the V-shaped hopper. The feeding plate is distributed between the V-shaped hopper and the product discharge channel. The feeding plate is linked to a feeding drive shaft. Both ends of the feeding drive shaft are rotatably connected to the hopper through bearings. The end of the feeding drive shaft is linked to a transmission plate. The end of the transmission plate away from the feeding drive shaft is hinged to a swing arm. The end of the swing arm away from the transmission plate is linked to an outer ring. The middle part of the outer ring is sleeved on the outer circumference of an eccentric wheel through a bearing. The eccentric wheel is linked to a servo motor.

[0018] Using the above technical solution, the V-shaped hopper inside the material bin can not only store a large number of air intake accessories such as straws, but also allow these accessories to slide smoothly downwards until they enter the product discharge channel. During processing, the gap of the product discharge channel is reasonably controlled, thereby controlling the order of the straws in the product discharge channel according to actual needs, ensuring that each straw falling onto the product positioning block is a single straw (the number can be changed according to actual needs). The servo motor drives the outer ring through the eccentric wheel, and the outer ring then drives the transmission plate and the feeding transmission shaft through the swing arm, finally driving the feeding plate to rotate, avoiding bridging between the V-shaped hopper and the product discharge channel, and promoting the smooth falling of the straws and other air intake accessories into the product discharge channel.

[0019] The above-mentioned inflatable bathtub sleeve air inlet accessory assembly mechanism can be further configured as follows: the V-shaped hopper is provided with a width adjustment plate, the width adjustment plate is fixedly connected to a screw, the screw is threadedly connected to an inner sleeve, the inner sleeve is rotatably installed on the hopper, and the inner sleeve is linked to an adjustment wheel, the outer circumference of the adjustment wheel is provided with anti-slip texture.

[0020] Using the above technical solution, rotating the adjusting wheel causes the inner sleeve to rotate. Since the end of the screw is fixedly connected to the width adjusting plate, the screw can move along the axis of the inner sleeve, thereby changing the position of the width adjusting plate to accommodate different specifications and types of straws and other air intake accessories. The anti-slip texture enhances the friction on the outer circumference of the adjusting wheel, making it easier for the hand to grip.

[0021] The above-mentioned inflatable bathtub sleeve air inlet accessory assembly mechanism can be further configured as follows: the hopper is linked to an angled plate, the angled plate is linked to a first cylinder, the lower end of the first cylinder is connected to a base plate, the bottom of the base plate is linked to a linear bearing, the linear bearing is linked to a sliding shaft, and the two ends of the sliding shaft are fixed; the servo motor, product positioning block, and pushing component are all mounted on the base plate.

[0022] Using the above technical solution, the first cylinder controls the lifting and lowering of the hopper via an angle plate, thereby adjusting the hopper's vertical position according to actual conditions. It is important to note that when adjusting the hopper's vertical position, the swing arm can be disassembled first to avoid interference. Normally, the hopper's position is adjusted during assembly, and then the swing arm is assembled, so interference will not occur. When the "air-type bathtub sleeve air inlet accessory assembly mechanism" is applied to a fully automated production line for inflatable bathtub sleeves, the linear bearings and sliding shafts installed under the base plate allow for adjustment of the overall lateral position of components such as the hopper, product positioning block, and pushing parts according to the film coating position, better adapting to the fully automated production line for inflatable bathtub sleeves.

[0023] The aforementioned inflatable bathtub sleeve air inlet accessory assembly mechanism can be further configured such that: the pushing component includes a second cylinder, and the output end of the second cylinder is linked to a pushing block.

[0024] Using the above technical solution, the second cylinder controls the forward and backward movement of the push block, thereby pushing the air intake accessories such as the suction tube to assist in completing the assembly.

[0025] An inflatable bathtub cover includes at least two layers of overlapping membranes, with the outer peripheries of the at least two layers of membranes sealed together to form a skirt. An air inlet cavity and an air inlet communicating with the air inlet cavity are provided between each pair of adjacent membranes. The air inlet cavity includes several sets of crisscrossing and interconnected inflation channels. The feature is that an air inlet accessory is provided in the air inlet or inflation channel, which is transported by the air inlet accessory assembly mechanism of the inflatable bathtub cover described in any one of the preceding claims.

[0026] By adopting the above technical solution, and by setting air intake accessories (most air intake accessories such as straws are located at the air intake) in the air inlet or inflation channel, the inflatable bathtub cover eliminates the need to manually insert the air intake component of the inflation mechanism into the air inlet during use. The inflation mechanism can be more easily inserted into the straw. At the same time, the straw has better support than soft plastic film, thus allowing for better control of the inflation process and ensuring uniform expansion of each inflation channel. This achieves the complete function of the inflatable bathtub cover, enhancing its functionality and improving the user experience.

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0029] Figure 2 This is a partial structural diagram of Embodiment 1 of the present utility model. Figure 1 ;

[0030] Figure 3 This is a schematic diagram of the pushing component according to Embodiment 1 of this utility model;

[0031] Figure 4 This is a partial structural diagram of Embodiment 1 of the present utility model. Figure 2 ;

[0032] Figure 5 This is an exploded view of a portion of the hopper structure in Embodiment 1 of this utility model. Figure 1 ;

[0033] Figure 6 This is an exploded view of a portion of the hopper structure in Embodiment 1 of this utility model. Figure 2 ;

[0034] Figure 7 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0035] Labeling notes: 1. Product positioning block; 2. Glue spraying component; 3. Upper film traction roller; 4. Lower film traction roller; 5. Material passage gap; 6. Traction protection roller; 7. First mounting block; 8. Second mounting block; 9. Frame; 10. First strip hole; 11. Arc-shaped positioning groove; 12. Discharge guide block; 13. Second strip hole; 14. Arc-shaped guide groove; 15. Hopper; 16. Material feeding plate; 17. V-shaped hopper; 18. Product discharge channel; 19. Material feeding drive shaft; 20. Transmission plate; 21. Swing arm; 22. Outer ring; 23. Eccentric wheel; 24. Servo motor; 25. Width adjustment plate; 26. Screw; 27. Inner sleeve; 28. Adjusting wheel; 29. ​​Anti-slip texture; 30. Angle plate; 31. First cylinder; 32. Base plate; 33. Linear bearing; 34. Sliding shaft; 35. Second cylinder; 36. Push block; 37. Film coating; 38. Skirt; 39. Air inlet; 40. Expansion channel; 41. Air inlet accessory. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Example 1: As Figures 1 to 6 The inflatable bathtub sleeve air inlet accessory assembly mechanism shown includes a product positioning block 1. An automatic feeding component is provided above the product positioning block 1 for orderly transporting the air inlet accessory 41 onto the product positioning block 1. A pushing component is provided at one end of the product positioning block 1 for pushing the air inlet accessory 41.

[0038] It also includes a glue spraying component 2 located at the other end of the product positioning block 1. The glue spraying component 2 includes a glue storage tank and a nozzle and pipe connected to the glue storage tank. The glue spraying component is used to spray glue onto the film 37 of the inflatable bathtub cover. When the air intake accessories 41, such as the straw, are assembled into the inflatable bathtub cover, the glue positions the air intake accessories 41, such as the straw, to prevent the air intake accessories 41 from deviating.

[0039] It also includes an upper film traction roller 3 and a lower film traction roller 4, which are arranged opposite each other. A material passage gap 5 is provided between the upper film traction roller 3 and the lower film traction roller 4 to accommodate the air intake component 41. The material passage gap 5 corresponds to the other end of the product positioning block 1. A traction protection roller 6 is provided above the upper film traction roller 3. The upper film traction roller 3 is used to pull the upper layer film 37, and the lower film traction roller 4 is used to pull the lower layer film 37. The two layers of film 37 are stacked on each other after passing through the material passage gap 5. At the same time, the material passage gap 5 can also help the air intake component 41, such as the suction tube, to be pushed between the two layers of film 37 to complete the assembly. Among them, the traction protection roller 6 not only further pulls the upper layer film 37, but also prevents the upper layer film 37 from contacting the working components such as the glue spraying component 2 after passing through the traction protection roller 6, thereby protecting the film 37.

[0040] The upper film traction roller 3 has two ends rotatably connected to first mounting blocks 7, and the lower film traction roller 4 has two ends rotatably connected to a set of first mounting blocks 7. The traction protection roller 6 has two ends rotatably connected to second mounting blocks 8. A frame 9 is provided on the same side of the first mounting blocks 7 and the second mounting blocks 8. The frame 9 has a first strip hole 10, and the first mounting blocks 7 and the second mounting blocks 8 are respectively connected to screw holes corresponding to the first strip hole 10. The design of the first strip hole 10 allows the first mounting blocks 7 and the second mounting blocks 8 to move within a certain range along the direction of the strip hole, so that the positions of the upper film traction roller 3, the lower film traction roller 4 and the traction protection roller 6 can be finely adjusted according to actual production needs to adapt to different sizes of film 37, improving the versatility and adaptability of the assembly mechanism. At the same time, it helps to ensure that the film 37 remains flat during the traction process, avoiding wrinkles or damage caused by uneven tension of the film 37, thereby improving product quality and production efficiency.

[0041] The product positioning block 1 has an arc-shaped positioning groove 11, and the other end of the product positioning block 1 has a discharge guide block 12. Below the discharge guide block 12 is a second strip-shaped hole 13, and the product positioning block 1 has screw connection holes corresponding to the second strip-shaped hole 13. Above the discharge guide block 12 is an arc-shaped guide groove 14 communicating with the arc-shaped positioning groove 11. The arc-shaped positioning groove 11 can better adapt to the shape of the straw and other air intake accessories 41, ensuring that the straw and other air intake accessories 41 fall accurately onto the product positioning block 1, and the pushing component can push the straw and other air intake accessories 41 more accurately. When the straw and other air intake accessories 41 are pushed between the upper and lower layers of film 37, the arc-shaped guide groove 14 on the discharge guide block 12 further guides the straw and other air intake accessories 41, ensuring that they accurately enter between the two layers of film 37, improving assembly accuracy. The design of the second strip-shaped hole 13 and screw connection holes facilitates the adjustment of the position of the discharge guide block 12.

[0042] The automatic feeding component includes a hopper 15 and a feeding plate 16. The hopper 15 contains a V-shaped hopper 17 and a product discharge channel 18 located below and connected to the V-shaped hopper 17. The feeding plate 16 is positioned between the V-shaped hopper 17 and the product discharge channel 18. The feeding plate 16 is linked to a feeding drive shaft 19, whose two ends are rotatably connected to the hopper 15 via bearings. A drive plate 20 is linked to the end of the drive shaft 19. A swing arm 21 is hinged to the end of the drive plate 20 away from the feeding drive shaft 19. An outer ring 22 is linked to the end of the swing arm 21 away from the drive plate 20. The middle of the outer ring 22 is sleeved on the outer circumference of an eccentric wheel 23 via a bearing. A servo motor 24 is linked to the eccentric wheel 23. The V-shaped hopper 17 within the hopper 15 can store a large number of air intake accessories 41, such as straws, which can then smoothly slide downwards into the product discharge channel 18. During processing, the gap of the product outlet channel 18 is reasonably controlled, thereby controlling the order of the straws in the product outlet channel 18 according to actual needs, so that each straw falling onto the product positioning block 1 is a single straw (the number can be changed according to actual needs). The servo motor 24 drives the outer ring 22 through the eccentric wheel 23, and the outer ring 22 then drives the transmission plate 20 and the feeding transmission shaft 19 to move through the swing arm 21, and finally drives the feeding plate 16 to rotate, so as to avoid bridging between the straws and other air intake accessories 41 between the V-shaped hopper 17 and the product outlet channel 18, and promote the smooth falling of the straws and other air intake accessories 41 into the product outlet channel 18.

[0043] The V-shaped hopper 17 is equipped with a width adjustment plate 25, which is fixedly connected to a screw 26. The screw 26 is threadedly connected to an inner sleeve 27, which is rotatably mounted on the hopper 15. The inner sleeve 27 is linked to an adjustment wheel 28, which has anti-slip textures 29 on its outer circumference. Rotating the adjustment wheel 28 causes the inner sleeve 27 to rotate. Since the end of the screw 26 is fixedly connected to the width adjustment plate 25, the screw 26 can move along the axis of the inner sleeve 27, thereby changing the position of the width adjustment plate 25 to accommodate different specifications and types of air intake accessories 41 such as straws. The anti-slip textures 29 enhance the friction on the outer circumference of the adjustment wheel 28, making it easier for the hand to grip.

[0044] The hopper 15 is linked to an angle plate 30, which in turn links to a first cylinder 31. The lower end of the first cylinder 31 is connected to a base plate 32. A linear bearing 33 is linked to the bottom of the base plate 32, and the linear bearing 33 is linked to a sliding shaft 34, with both ends of the sliding shaft 34 fixed. The servo motor 24, product positioning block 1, and pushing components are all mounted on the base plate 32. The first cylinder 31 controls the lifting and lowering of the hopper 15 via the angle plate 30, thereby adjusting the vertical position of the hopper 15 according to actual conditions. It should be noted that when adjusting the vertical position of the hopper 15, the swing arm 21 can be disassembled first to avoid interference. Normally, the position of the hopper 15 is adjusted during assembly, and then the swing arm 21 is assembled, so interference will not occur. When the "air-type bathtub sleeve air inlet accessory 41 assembly mechanism" is applied to the fully automatic production line of inflatable bathtub sleeves, since the linear bearing 33 and sliding shaft 34 are installed under the base plate 32, the lateral position of the hopper 15, product positioning block 1, pushing component and other components can be adjusted according to the position of the film 37, so as to better adapt to the fully automatic production line of inflatable bathtub sleeves.

[0045] The pushing component includes a second cylinder 35, and a pushing block 36 is linked to the output end of the second cylinder 35. The second cylinder 35 controls the forward and backward movement of the pushing block 36, thereby pushing the air intake accessories 41 such as the suction tube to assist in completing the assembly.

[0046] The working principle of Example 1 is as follows: The upper film traction roller 3 and the lower film traction roller 4 respectively pull the upper film 37 and the lower film 37. After passing through the material passage gap 5, the upper film 37 and the lower film 37 become stacked on each other. Before the upper film 37 passes through the material passage gap 5, the glue spraying component 2 sprays glue onto the upper film 37 (it can also spray glue onto the lower film 37, or both films 37 can be sprayed with glue, depending on the actual situation). At the same time, the hopper 15 orderly transports the suction tube and other air intake accessories 41 to the arc-shaped positioning groove 11 of the product positioning block 1. The second cylinder 35 controls the forward movement of the push block 36, thereby pushing the suction tube and other air intake accessories 41 into the space between the two sets of films 37 (that is, in the material passage gap 5 between the upper film traction roller 3 and the lower film traction roller 4). The glue fixes the suction tube and other air intake accessories 41 to prevent them from deviating between the two films 37. This embodiment achieves efficient production of inflatable bathtub sleeves with air intake accessories 41.

[0047] Example 2: Figure 7The inflatable bathtub cover shown includes at least two layers of overlapping membrane 37. The outer periphery of the at least two layers of membrane 37 is sealed to form a skirt 38. An air inlet cavity and an air inlet 39 communicating with each adjacent pair of membranes 37 are provided. The air inlet cavity includes several sets of crisscrossing and interconnected inflation channels 40. An air inlet accessory 41, which is transported by the air inlet accessory 41 assembly mechanism of the inflatable bathtub cover of Embodiment 1, is provided in the air inlet 39 or the inflation channel 40.

[0048] By incorporating air intake accessories 41 (most air intake accessories 41, such as straws, are located at the air intake 39) within the air inlet 39 or inflation channel 40, the inflatable bathtub cover eliminates the need for manual insertion of the air intake components of the inflation mechanism into the air inlet 39 during use. This allows for easier insertion of the inflation mechanism into the straw. Furthermore, the straw provides better support compared to soft plastic sheeting, enabling better control of the inflation process and ensuring uniform expansion of each inflation channel 40. This achieves the full functionality of the inflatable bathtub cover, enhancing its usability and improving the user experience.

Claims

1. An air bath tub liner air fitting assembly mechanism characterized by: The product positioning block is provided with an automatic feeding component for orderly transporting the air inlet accessory to the product positioning block, and one end of the product positioning block is provided with a pushing component for pushing the air inlet accessory.

2. An inflatable tub sleeve air inlet fitting assembly mechanism according to claim 1, wherein: The product positioning block is provided with an automatic feeding component for orderly transporting the air inlet accessory to the product positioning block, and one end of the product positioning block is provided with a pushing component for pushing the air inlet accessory.

3. An inflatable tub sleeve air inlet fitting assembly mechanism according to claim 1, wherein: The product positioning block is provided with an automatic feeding component for orderly transporting the air inlet accessory to the product positioning block, and one end of the product positioning block is provided with a pushing component for pushing the air inlet accessory.

4. An inflatable bath insert air inlet fitting assembly according to claim 3, wherein: The product positioning block is provided with an automatic feeding component for orderly transporting the air inlet accessory to the product positioning block, and one end of the product positioning block is provided with a pushing component for pushing the air inlet accessory.

5. An inflatable bath insert air inlet fitting assembly according to any one of claims 1 to 4 wherein: The product positioning block is provided with an automatic feeding component for orderly transporting the air inlet accessory to the product positioning block, and one end of the product positioning block is provided with a pushing component for pushing the air inlet accessory.

6. An inflatable bath insert air inlet fitting assembly according to any one of claims 1 to 4, wherein: The product positioning block is provided with an automatic feeding component for orderly transporting the air inlet accessory to the product positioning block, and one end of the product positioning block is provided with a pushing component for pushing the air inlet accessory.

7. An inflatable bath insert air inlet fitting assembly mechanism according to claim 6, characterised in that: The product positioning block is provided with an automatic feeding component for orderly transporting the air inlet accessory to the product positioning block, and one end of the product positioning block is provided with a pushing component for pushing the air inlet accessory.

8. An inflatable tub sleeve inflation fitting assembly mechanism according to claim 6, wherein: The product positioning block is provided with an automatic feeding component for orderly transporting the air inlet accessory to the product positioning block, and one end of the product positioning block is provided with a pushing component for pushing the air inlet accessory.

9. An inflatable tub sleeve air inlet fitting assembly mechanism according to any one of claims 1 to 4, wherein: The product positioning block is provided with an automatic feeding component for orderly transporting the air inlet accessory to the product positioning block, and one end of the product positioning block is provided with a pushing component for pushing the air inlet accessory.

10. An inflatable bathtub cover, comprising at least two layers of film laminated together, the outer periphery of the at least two layers of film being sealed together to form a skirt, and wherein between each adjacent pair of layers of film there is provided an air inlet chamber and an air inlet in communication with the air inlet chamber, the air inlet chamber comprising a plurality of groups of air expansion channels which are arranged in a criss-cross pattern and are in communication with one another, characterised in that: ​

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