Intelligent constant pressure blower with air pressure detection function

Abstract

The application relates to the technical field of air blowers, in particular to an intelligent constant-pressure air blower with air pressure detection function, which comprises an air blower, a blowing pipe, an outer sleeve, an elastic piece one, an inner sleeve and a fixing plate and the like. The blowing pipe is arranged on the air blower. The outer sleeve is slidably connected to the outside of the blowing pipe. The elastic piece one is arranged on the blowing pipe. The elastic piece one is connected to the outer sleeve. The inner sleeve is slidably connected to the outside of the blowing pipe. The inner sleeve is located on the left side of the outer sleeve. A plurality of fixing plates for fixing the inflation port of a model are rotatably connected to the outside of the inner sleeve. Each fixing plate is provided with an extrusion part for clamping the inflation port. The inner sleeve is provided with a recess part matched with the extrusion part. The inflation port is pressed to the outside of the inner sleeve through the fixing plate, so that the inflation port is fixed without the mode of binding with a rope by the staff, the convenient fixation of the inflation port of the model is realized, and the fixation effect of the inflation port of the model is ensured.

Description

Technical Field

[0001] This invention relates to the field of blower technology, and in particular to an intelligent constant pressure blower with air pressure detection function. Background Technology

[0002] Inflatable model blowers are large-scale devices specifically designed for inflatable advertising models, event props, and entertainment facilities. Their core function is to maintain the inflatable model's expansion and stable shape by continuously supplying airflow. Because inflatable models filled with gas are large in volume and light in weight, they are highly susceptible to strong winds and can generate significant wind loads. In windy weather, inflatable models filled with gas are easily lifted off the ground by the wind force. Traditionally, the inflation port of inflatable models is usually tied to the blower with ropes. When the inflatable model is lifted by strong winds, it can easily cause the blower to swing, which can not only easily damage the equipment but also pose a risk of accidental impact to people in the vicinity. This safety hazard is even more prominent in densely populated event venues.

[0003] Furthermore, since the existing blowers and inflatable models use ropes to secure the inflation port, the disassembly and assembly process is cumbersome and difficult for workers. Specifically, the rope knots are prone to loosening and need to be tightened repeatedly, which significantly increases the operation time; the limited binding angle leads to insufficient sealing and the risk of air leakage, which not only reduces the efficiency of disassembly and assembly but also reduces the securing effect on the inflation port. Summary of the Invention

[0004] To overcome the shortcomings of existing inflatable models where the inflation port and blower are usually fixed with ropes, which can easily cause the inflatable model to be lifted and the blower to swing in windy weather, resulting in equipment damage and personnel collision risks, this invention provides an intelligent constant pressure blower with air pressure detection function.

[0005] Technical Solution: An intelligent constant pressure blower with air pressure detection function includes a blower and an air blowing pipe; the blower is equipped with the air blowing pipe; it also includes an outer sleeve, an elastic element, an inner sleeve, a fixing plate, and a locking assembly; the outer sleeve is slidably connected to the outside of the air blowing pipe; the elastic element is provided on the air blowing pipe; the elastic element is connected to the outer sleeve; the inner sleeve is slidably connected to the outside of the air blowing pipe; the inner sleeve is located on the left side of the outer sleeve; several fixing plates for fixing the inflation port of the model are rotatably connected to the outside of the inner sleeve; each fixing plate is provided with a squeezing part for clamping the inflation port; the inner sleeve has a recessed part that cooperates with the squeezing part; the outer sleeve is provided with a locking assembly for locking the inner sleeve.

[0006] Optionally, the locking assembly includes a movable ring, a locking block, a second elastic element, and a connecting rope; the movable ring is slidably connected to the outer sleeve; the movable ring is provided with several insert rods; the outer sleeve has several movable slots; each insert rod is inserted into a corresponding movable slot; a locking block for locking and fixing the inner sleeve is slidably connected in each movable slot; each locking block has a locking groove; each locking groove is inclined towards the inner sleeve; a second elastic element is fixedly connected in each movable slot; each second elastic element is fixedly connected to a corresponding locking block; several locking slots are provided on the outer side of the inner sleeve; several connecting ropes are fixedly connected to the movable ring; each connecting rope is fixedly connected to the air blowing pipe.

[0007] Optionally, each card block has an inclined surface facing the inner sleeve; each card slot is set to be inclined to fit the inclined surface.

[0008] Optionally, the inner sleeve is provided with a protrusion to facilitate pushing the inner sleeve.

[0009] Optionally, each fixing plate is provided with a frosted surface on the side facing the inner sleeve.

[0010] Optionally, the left end of the outer sleeve is set as an arc surface.

[0011] Optionally, it also includes a guide cover; the left end of the air pipe is fixed with a guide cover that facilitates connection to the model's air inlet; the guide cover is hemispherical; and the guide cover has several ventilation holes.

[0012] Optionally, it also includes a rubber band; the outer side of the inner sleeve is connected to a rubber band for fixing the model's air inlet.

[0013] Optionally, the outer surface of the air tube is a smooth surface.

[0014] Optionally, it also includes a magnetic attraction system, which includes a magnetic attraction ring one and a magnetic attraction ring two; the left side of the air blowing tube is fixedly connected to the magnetic attraction ring one; and the left end of the inner sleeve is fixedly connected to the magnetic attraction ring two for fixing the inner sleeve.

[0015] The beneficial effects of the present invention are: the present invention achieves the ability to press the air inlet to the outside of the inner sleeve by fixing the fixing plate, eliminating the need for workers to fix the air inlet by tying it with ropes, thus ensuring the fixation effect of the air inlet of the model while achieving convenient fixation of the air inlet of the model.

[0016] By pulling the movable ring to the right relative to the outer sleeve through the connecting rope, the locking block on the inner sleeve is released, and the connection between the outer sleeve and the inner sleeve is disconnected. This enables the automatic separation of the inflation port from the blower in case of an emergency, preventing the blower from being thrown by strong winds and avoiding accidental impact injuries to surrounding personnel.

[0017] By setting an inclined surface on the side of the locking block facing the inner sleeve, and making the locking groove have an inclined structure that is deeper on the left and shallower on the right, it is ensured that the rebound force of the second elastic element can drive the locking block to reset, and ultimately ensure the normal operation of the emergency separation function between the inner sleeve and the outer sleeve.

[0018] The air inlet is guided to the left side of the inner sleeve by the guide cover, which makes it easier to fit the air inlet onto the outer surface of the inner sleeve. This reduces the difficulty of fitting the air inlet. During normal inflation, the airflow through the air pipe can directly inflate the model through the vent on the guide cover. Attached Figure Description

[0019] Figure 1 This is a first-view three-dimensional structural diagram of the intelligent constant pressure blower with air pressure detection function according to the present invention.

[0020] Figure 2 This is a second perspective three-dimensional structural diagram of the intelligent constant pressure blower with air pressure detection function according to the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the air blowing pipe, outer sleeve, inner sleeve, fixing plate and guide cover of the present invention;

[0022] Figure 4 This is a three-dimensional structural diagram of the air blowing tube, outer sleeve, elastic element 1, inner sleeve, fixing plate, locking assembly and magnetic attraction system of the present invention.

[0023] Figure 5 This is a side view of the combination of the outer sleeve, inner sleeve, fixing plate, locking assembly and magnetic attraction system of the present invention.

[0024] Figure 6 This is a diagram showing the air inlet state of the fixed model of the outer sleeve, inner sleeve, fixing plate, and locking assembly of the present invention.

[0025] Figure 7 This is a cross-sectional view of the outer sleeve, inner sleeve, fixing plate, and locking block assembly of the present invention.

[0026] The meanings of the reference numerals in the attached diagram are as follows: 1-Blower, 2-Air pipe, 3-Outer sleeve, 3001-Modible groove, 4-Elastic component one, 5-Inner sleeve, 5001-Recessed part, 5002-Protruding part, 5003-Slot, 6-Fixing plate, 6001-Extrusion part, 101-Modible ring, 10101-Insertion rod, 102-Card block, 10201-Locking groove, 10202-Inclined surface, 103-Elastic component two, 104-Connecting rope, 201-Guide cover, 202-Rubber band, 301-Magnetic ring one, 302-Magnetic ring two. Detailed Implementation

[0027] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0028] Example 1: As Figures 1-7 As shown, an intelligent constant pressure blower with air pressure detection function includes a blower 1 and an air blowing pipe 2; the blower 1 is equipped with the air blowing pipe 2; the blower 1 consists of a servo motor, a blower housing, and an impeller; the blower housing has an air inlet and an air outlet; the air inlet is equipped with a filter element to intercept water vapor and impurities; the air blowing pipe 2 is connected to the air outlet; the blower 1 is equipped with an electromagnetic relay for controlling the start and stop of the blower 1; the blower 1 is equipped with a pressure sensor for real-time air pressure detection; the blower 1 is equipped with a controller for receiving sensor signals and executing control logic; the blower 1 is equipped with an electromagnetic exhaust valve for automatic pressure relief in case of overpressure; the blower 1 is equipped with a power protection module for overload protection and emergency stop of the blower 1.

[0029] It also includes an outer sleeve 3, an elastic element 4, an inner sleeve 5, a fixing plate 6, and a locking assembly; the outer sleeve 3 is slidably connected to the outside of the air pipe 2; the elastic element 4, which is a spring, is provided on the air pipe 2; the elastic element 4 is connected to the outer sleeve 3; the inner sleeve 5 is slidably connected to the outside of the air pipe 2; the inner sleeve 5 is located to the left of the outer sleeve 3; several fixing plates 6 arranged in a ring array are rotatably connected to the outside of the inner sleeve 5 through a torsion spring; the model inflation port is made of nylon fabric; each fixing plate 6 is provided with a compression part 6001; the inner sleeve 5 has a recessed part 5001 that cooperates with the compression part 6001; the outer sleeve 3 is provided with a locking assembly.

[0030] The locking assembly includes a movable ring 101, a locking block 102, an elastic element 103, and a connecting rope 104; the movable ring 101 is slidably connected to the outer sleeve 3; the movable ring 101 is provided with a plurality of insert rods 10101 arranged in a circular array; the outer sleeve 3 is provided with a plurality of movable slots 3001; each insert rod 10101 is inserted into a corresponding movable slot 3001; a locking block 102 is slidably connected in each movable slot 3001; each locking block 102 is provided with a locking mechanism. Locking groove 10201; each locking groove 10201 is inclined on the side facing the inner sleeve 5; each movable groove 3001 is fixedly connected to an elastic element 103, which is a spring; each elastic element 103 is fixedly connected to the corresponding locking block 102; the outer side of the inner sleeve 5 is provided with several locking grooves 5003 arranged in a ring; several connecting ropes 104 arranged in a ring are fixedly connected to the movable ring 101; each connecting rope 104 is fixedly connected to the air blowing pipe 2.

[0031] Each card block 102 has an inclined surface 10202 on the side facing the inner sleeve 5; each card slot 5003 is set to be inclined to fit the inclined surface 10202, so that the inner sleeve 5 can squeeze the card block 102 out of the card slot 5003.

[0032] The inner sleeve 5 is provided with a protrusion 5002.

[0033] Each fixing plate 6 has a frosted surface on the side facing the inner sleeve 5, which helps to increase the friction between the fixing plate 6 and the model's air inlet and enhance the pressing and fixing effect on the air inlet.

[0034] The left end of the outer sleeve 3 is set as an arc surface, which helps to reduce the friction between the fixing plate 6 and the left end of the outer sleeve 3. At the same time, it facilitates the separation of the extrusion part 6001 from the left end of the outer sleeve 3.

[0035] It also includes a guide cover 201; the left end of the air blowing pipe 2 is fixed to the guide cover 201; the guide cover 201 is set in a hemispherical shape; and several air vents are opened on the guide cover 201.

[0036] It also includes a rubber band 202; the outer side of the inner sleeve 5 is detachably connected with a rubber band 202.

[0037] The outer surface of the air blowing pipe 2 is smooth, which helps to reduce the friction between the outer sleeve 3 and the inner sleeve 5 and the outer surface of the air blowing pipe 2, thereby reducing equipment wear.

[0038] When inflating a large inflatable model, the operator first attaches the nylon fabric inflation port of the inflatable model to the outside of the inner sleeve 5, so that the end of the inflation port contacts the connection between the fixing plate 6 and the inner sleeve 5. Then, the operator presses down on the protrusion 5002 through the inflation port and pushes the inner sleeve 5 along with the inflation port into the outer sleeve 3. During this process, the fixing plate 6 is squeezed by the left end of the outer sleeve 3 and rotates towards the surface of the inner sleeve 5, while compressing the torsion spring on the fixing plate 6. The inflation is then carried out through the fixing plate 6. The air inlet is pressed to the outside of the inner sleeve 5 to easily fix the air inlet. When the squeezing part 6001 moves with the inner sleeve 5 and contacts the left end of the outer sleeve 3, the left end of the outer sleeve 3 presses the squeezing part 6001 into the recessed part 5001, so that the squeezing part 6001 presses the air inlet into the recessed part 5001 and cooperates with the protrusion 5002, so that the outer side of the air inlet is fixed in an S-shape on the outside of the inner sleeve 5, thereby reinforcing the air inlet. When the inner sleeve 5 moves into the outer sleeve 3, it combines with... Figure 7 The operator pushes the movable ring 101 to the left, causing it to drive the insert rod 10101 into the locking groove 10201. During this process, guided by the inclined contact surface in the locking groove 10201, the insert rod 10101 pushes the locking block 102 out of the movable groove 3001, while simultaneously stretching the elastic element 103, causing the locking block 102 to insert into the locking groove 5003. This fixes the inner sleeve 5 along with the model inflation port to the outer sleeve 3, eliminating the need for the operator to use ropes to secure the inflation port. This ensures effective fixation of the model inflation port while providing convenient fixation.

[0039] During model inflation, the electromagnetic relay on blower 1 controls the servo motor to rotate the impeller, drawing outside air into the blower housing through the air inlet and then blowing it into the inflatable model through the air pipe 2, causing the model to inflate. During inflation, a filter at the air inlet intercepts moisture and impurities from the air, ensuring sufficient airflow while preventing moisture and impurities from entering the inflatable model. During continuous inflation, a pressure sensor monitors the internal air pressure in real time. When the internal pressure is too high, the electromagnetic exhaust valve on blower 1 automatically releases pressure to prevent over-expansion and cracking. After use, when disconnecting the inflation port from blower 1, an electromagnetic relay... The device controls the servo motor to drive the impeller to rotate in the opposite direction, actively extracting the gas inside the inflatable model to the outside, accelerating the recovery efficiency of the inflatable model. After the model is deflated, the blower 1 is stopped by the electromagnetic relay. Then, the operator pushes the movable ring 101 to the right on the outer sleeve 3, causing the insertion rod 10101 to disengage from the locking groove 10201. After the locking block 102 is no longer locked by the insertion rod 10101, it retracts into the movable groove 3001 under the elastic force of the elastic element 103, causing the locking block 102 to disengage from the groove 5003, thereby releasing the lock on the inner sleeve 5. Then, the operator pulls the inner sleeve 5 along with the inflation port out of the outer sleeve 3 to the left. After the inner sleeve 5 separates from the outer sleeve 3, the fixing plate 6 rebounds under the elastic force of the torsion spring. Figure 3 The inflation port is in the expanded state shown, and the pressing and fixing of the inflation port is released. At this time, the staff only needs to remove the inflation port from the inner sleeve 5 to achieve convenient disassembly of the inflation port.

[0040] Furthermore, considering that in windy weather, inflatable models filled with gas are easily lifted off the ground by the wind, and that the inflation port of traditional inflatable models is usually fixed to the blower 1 with ropes, when the inflatable model is lifted by strong winds, it can easily cause the blower 1 to swing, which can cause accidental impact injuries to surrounding personnel, posing a serious safety hazard. Therefore, when the inflatable model is about to be lifted off the ground by the wind, the model pulls on the inner sleeve 5 through the inflation port. At this time, the inner sleeve 5 is locked by block 1. 02 is locked in the outer sleeve 3. When the inner sleeve 5 is pulled, the air inlet is pulled together with the outer sleeve 3, causing the inner sleeve 5 and the outer sleeve 3 to move to the left on the air pipe 2. At the same time, the elastic element 4 is stretched. As the outer sleeve 3 moves to the left on the air pipe 2, the connecting rope 104 is gradually stretched by the movable ring 101. When the blower 1 separates from the ground, the weight of the blower 1 is fully applied to the connection between the air inlet and the inner sleeve 5, causing the air inlet to move the inner sleeve 5 and the outer sleeve 3 to the left on the air pipe 2. At this time, the connecting rope 104... The outer sleeve 3 is stretched and taut, limiting the movement of the movable ring 101. As the outer sleeve 3 continues to move, the movable ring 101 moves to the right relative to the outer sleeve 3, causing the insert rod 10101 to disengage from the locking groove 10201. After the locking block 102 loses the locking of the insert rod 10101, it retracts into the movable groove 3001 under the elastic force of the elastic element 103, causing the locking block 102 to disengage from the groove 5003, thereby releasing the locking of the inner sleeve 5. At this time, the connection between the outer sleeve 3 and the inner sleeve 5 is broken, and the outer sleeve 3 loses the pulling force of the inner sleeve 5. The force, under the elastic force of the elastic element 4, moves to the right and resets, while the inner sleeve 5 and the fixing plate 6 are pulled out of the outer sleeve 3 by the air inlet. The fixing plate 6 then rebounds and resets under the elastic force of the torsion spring, releasing the pressure and fixing of the air inlet, so that the air inlet is separated from the inner sleeve 5 and the fixing plate 6. This realizes the automatic separation of the air inlet from the blower 1 in case of an emergency, preventing the blower 1 from being blown away by strong winds and avoiding accidental impact injury to the surrounding staff by the blower 1, thus improving the protection effect for the staff.

[0041] Furthermore, considering the aforementioned strong wind conditions, when the movable ring 101 moves to the right relative to the outer sleeve 3, causing the insertion rod 10101 to disengage from the locking groove 10201, the reset pull of the outer sleeve 3 acts on the end of the locking block 102 near the elastic element 103. Simultaneously, the inner sleeve 5 is subjected to a leftward pull from the inflation port, causing the end of the locking block 102 inserted into the slot 5003 to experience a reverse force. This results in the locking block 102 forming a bidirectional clamping state at the junction of the movable groove 3001 and the slot 5003. At this time, the rebound force of the elastic element 103 is insufficient to overcome this clamping resistance, causing the locking block 102 to remain in the slot 5003. Ultimately, this causes the emergency separation function of the inner sleeve 5 and the outer sleeve 3 to fail, making it impossible to achieve the desired result. The air inlet and the blower 1 are automatically disengaged. Therefore, by setting an inclined surface 10202 on the side of the locking block 102 facing the inner sleeve 5, and making the locking groove 5003 have an inclined structure that is deeper on the left and shallower on the right, when the inner sleeve 5 is pulled to the left by the air inlet and moves the insertion end of the locking block 102, the inclined surface of the locking groove 5003 applies an outward force to the inclined surface 10202, pushing the locking block 102 out of the locking groove 5003, thereby releasing the clamping state of the movable groove 3001 and the locking groove 5003 on the locking block 102, ensuring that the rebound force of the elastic element 2 103 can drive the locking block 102 to reset, and finally ensuring the normal operation of the emergency separation function of the inner sleeve 5 and the outer sleeve 3.

[0042] Furthermore, considering that when the outer diameter of the air inlet equipped with the model is small, the assembly gap between the outer surface of the inner sleeve 5 and the inner wall of the air inlet is insufficient, and the operator needs to overcome a large frictional resistance when performing the fitting operation. At the same time, the fitting process is difficult due to the limited elastic deformation range of the air inlet material. Therefore, by setting a guide cover 201 at the left end of the air blowing pipe 2, the operator can guide the air inlet to the left side of the inner sleeve 5 during fitting, which makes it easier for the air inlet to fit onto the outer surface of the inner sleeve 5. This helps to reduce the difficulty of fitting the air inlet. During normal inflation, the airflow through the air blowing pipe 2 can directly inflate the model through the vent on the guide cover 201.

[0043] Furthermore, considering that when the outer diameter of the inflation port on the model is large, after completing the connection between the inflation port and the inner sleeve 5, the staff needs to fold the excess part of the inflation port. However, due to the structural limitations of the fixing plate 6, during the process of pushing the assembled inner sleeve 5 into the outer sleeve 3, the staff cannot apply continuous and effective pressure to the folded part of the inflation port. This causes the folded structure of the inflation port to unfold on its own during the movement due to the loss of external force constraint, thereby reducing the final fixing effect of the fixing plate 6 on the inflation port. Therefore, after the staff completes the connection between the inflation port and the inner sleeve 5, the rubber band 202 is removed from the surface of the inner sleeve 5 and re-attached to the folded part of the inflation port to implement constraint and limitation. During the subsequent process of pushing the inner sleeve 5 into the outer sleeve 3, the rubber band 202 continuously applies radial pressure to the folded structure of the inflation port, effectively preventing the folded part from unfolding on its own due to the loss of constraint. This ensures that the fixing plate 6 can accurately act on the predetermined fixing position and guarantees the final fixing effect of the fixing plate 6 on the inflation port.

[0044] Example 2: Based on Example 1, as follows Figures 3-7 As shown, it also includes a magnetic attraction system, which includes a magnetic attraction ring 301 and a magnetic attraction ring 302; the left side of the air blowing pipe 2 is fixedly connected to the magnetic attraction ring 301; the left end of the inner sleeve 5 is fixedly connected to the magnetic attraction ring 302.

[0045] Furthermore, considering that when the outer diameter of the inflation port on the model is small, the insufficient assembly gap between the outer surface of the inner sleeve 5 and the inner wall of the inflation port makes it easy for the operator to push the inner sleeve 5 into the outer sleeve 3 during the fitting operation, preventing the inflation port from being properly fitted onto the outside of the inner sleeve 5 and increasing the difficulty of the fitting operation. Therefore, when fitting the inflation port onto the outside of the inner sleeve 5, the magnetic ring 301 is used to attract the magnetic ring 302, thereby attracting and fixing the inner sleeve 5 to prevent it from moving into the outer sleeve 3 during the fitting process, thus reducing the difficulty of the fitting operation. After the fitting operation is completed, the operator pushes the inner sleeve 5 along the axial direction of the air pipe 2 to overcome the magnetic attraction force, which allows the magnetic ring 301 and the magnetic ring 302 to separate.

[0046] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. An intelligent constant pressure blower with air pressure detection function, comprising an air blowing pipe (2); the blower (1) is provided with the air blowing pipe (2); characterized in that, It also includes an outer sleeve (3), an elastic element (4), an inner sleeve (5), a fixing plate (6), and a locking assembly; the outer sleeve (3) is slidably connected to the outside of the air pipe (2); an elastic element (4) is provided on the air pipe (2); the elastic element (4) is connected to the outer sleeve (3); the inner sleeve (5) is slidably connected to the outside of the air pipe (2); the inner sleeve (5) is located on the left side of the outer sleeve (3); several fixing plates (6) for fixing the air inlet of the model are rotatably connected to the outside of the inner sleeve (5); each fixing plate (6) is provided with a compression part (6001) for reinforcing the air inlet; a recess (5001) that cooperates with the compression part (6001) is provided on the inner sleeve (5); a locking assembly for locking the inner sleeve (5) is provided on the outer sleeve (3); The locking assembly includes a movable ring (101), a locking block (102), an elastic element (103), and a connecting rope (104); the movable ring (101) is slidably connected to the outer sleeve (3); several insert rods (10101) are provided on the movable ring (101); several movable slots (3001) are opened on the outer sleeve (3); each insert rod (10101) is inserted into the corresponding movable slot (3001); a locking inner sleeve (5) is slidably connected in each movable slot (3001). The inner sleeve (5) has several locking blocks (102); each locking block (102) has a locking groove (10201); each locking groove (10201) is inclined towards the inner sleeve (5); each movable groove (3001) has an elastic element (103) fixedly connected to it; each elastic element (103) is fixedly connected to the corresponding locking block (102); the outer side of the inner sleeve (5) has several locking grooves (5003); several connecting ropes (104) are fixedly connected to the movable ring (101); Each connecting rope (104) is fixed to the air tube (2); when inflating the inflatable model, first, the air inlet of the inflatable model is fitted to the outside of the inner sleeve (5), and then the inner sleeve (5) along with the air inlet is pushed into the outer sleeve (3). During this process, the fixing plate (6) is squeezed by the left end of the outer sleeve (3) and rotates towards the surface of the inner sleeve (5). The air inlet is pressed to the outside of the inner sleeve (5) by the fixing plate (6), thus fixing the air inlet; after the inner sleeve (5) moves into the outer sleeve (3), Push the movable ring (101) to the left, so that the movable ring (101) drives the insert rod (10101) to insert into the locking groove (10201). During this process, the insert rod (10101) pushes the locking block (102) out of the movable groove (3001) through the guide of the inclined contact surface in the locking groove (10201), and at the same time stretches the elastic element two (103), so that the locking block (102) is inserted into the locking groove (5003), thereby fixing the inner sleeve (5) together with the model inflation port to the outer sleeve (3).

2. The intelligent constant pressure blower with air pressure detection function according to claim 1, characterized in that, Each card block (102) has an inclined surface (10202) on the side facing the inner sleeve (5); each card slot (5003) is set to be inclined to fit the inclined surface (10202).

3. The intelligent constant pressure blower with air pressure detection function according to claim 2, characterized in that, The inner sleeve (5) is provided with a protrusion (5002) to facilitate pushing the inner sleeve (5).

4. The intelligent constant pressure blower with air pressure detection function according to claim 3, characterized in that, Each fixing plate (6) is set with a frosted surface on the side facing the inner sleeve (5).

5. The intelligent constant pressure blower with air pressure detection function according to claim 1, characterized in that, The left end of the outer sleeve (3) is set as an arc surface.

6. The intelligent constant pressure blower with air pressure detection function according to claim 1, characterized in that, It also includes a guide cover (201); the left end of the air pipe (2) is fixed with a guide cover (201) that is convenient for connecting the air inlet of the model; the guide cover (201) is set as a hemispherical shape; and several air holes are opened on the guide cover (201).

7. The intelligent constant pressure blower with air pressure detection function according to claim 4, characterized in that, It also includes a rubber band (202); the outer side of the inner sleeve (5) is connected to a rubber band (202) for fixing the air inlet of the model.

8. The intelligent constant pressure blower with air pressure detection function according to claim 6, characterized in that, The outer surface of the air tube (2) is smooth.

9. The intelligent constant pressure blower with air pressure detection function according to claim 8, characterized in that, It also includes a magnetic attraction system, which includes a magnetic ring one (301) and a magnetic ring two (302); the left side of the air blowing pipe (2) is fixed with magnetic ring one (301); the left end of the inner sleeve (5) is fixed with magnetic ring two (302); magnetic ring one (301) attracts magnetic ring two (302) to prevent the inner sleeve (5) from moving into the outer sleeve (3) during the process of attaching the air inlet to the outside of the inner sleeve (5).

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