Intelligent constant-pressure air blower with air pressure detection function

Abstract

The invention relates to the technical field of air blowers, in particular to an intelligent constant-pressure air blower with an air pressure detection function, which comprises an air blower, an air blowing pipe, an outer sleeve, an elastic piece I, an inner sleeve, a fixed plate and the like, an air blowing pipe is arranged on the air blower; an outer sleeve is slidably connected to the outer side of the blowing pipe; an elastic piece I is arranged on the air blowing pipe; the elastic piece I is connected with the outer sleeve; the outer side of the blowing pipe is slidably connected with an inner sleeve; the inner sleeve is positioned on the outer sleeve; the outer side of the inner sleeve is rotationally connected with a plurality of fixing plates used for fixing a model inflation inlet. Each fixing plate is provided with an extrusion part used for clamping an inflation inlet. And the inner sleeve is provided with a concave part matched with the extrusion part. According to the inflation port fixing device, the inflation port is pressed to the outer side of the inner sleeve through the fixing plate, a worker does not need to fix the inflation port in a rope binding mode, and the model inflation port is conveniently fixed while the fixing effect of the model inflation port is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of blowers, and in particular to an intelligent constant-pressure blower with an air pressure detection function. Background Art

[0002] An inflatable model blower is a large-scale equipment specially used for inflatable advertising models, event props, entertainment facilities, etc. Its core function is to keep the inflatable model expanded and stable by continuously delivering airflow. Since the inflatable model filled with gas is large in size and light in weight, it is extremely susceptible to strong winds and produces large wind loads. When encountering strong winds, the inflatable model filled with gas is extremely susceptible to the wind and is lifted off the ground. The inflation port and blower of the traditional inflatable model are usually fixed with ropes. When the inflatable model is lifted by strong winds, it is easy to drive the blower to swing, which is not only easy to cause damage to the equipment, but also may cause the risk of accidental collision to surrounding people. This safety hazard is more prominent especially at event sites with a large number of people.

[0003] Furthermore, since the existing blowers and inflatable models use rope tying to fix the inflation port, the workers suffer from cumbersome and difficult operations during the disassembly and assembly process. Specifically, the rope knot is easy to loosen and needs to be repeatedly tightened, which significantly increases the operation time; the limited tying angle leads to insufficient sealing and the risk of air leakage, which not only reduces the disassembly and assembly efficiency, but also reduces the fixing effect of the inflation port. Summary of the Invention

[0004] In order to overcome the shortcomings of existing inflatable models in which the inflation port and blower are usually fixed with ropes, which may easily cause the inflatable model to tilt and the blower to swing in windy weather, posing the risk of equipment damage and personal collision, the present invention provides an intelligent constant pressure blower with an air pressure detection function.

[0005] Technical solution: An intelligent constant pressure blower with an air pressure detection function includes a blower and an air pipe; the blower is provided with an air pipe; it also includes an outer sleeve, an elastic part, an inner sleeve, a fixing plate and a locking assembly; the outer side of the air pipe is slidably connected to the outer side; the air pipe is provided with an elastic part; the elastic part is connected to the outer sleeve; the outer side of the air pipe is slidably connected to the inner sleeve; the inner sleeve is located on the left side of the outer sleeve; the outer side of the inner sleeve is rotatably connected to a number of fixing plates for fixing the model inflation port; each fixing plate is provided with an extrusion portion for clamping the inflation port; the inner sleeve is provided with a recessed portion cooperating with the extrusion portion; the outer sleeve is provided with a locking assembly for locking the inner sleeve.

[0006] Optionally, the locking assembly includes a movable ring, a block, an elastic member 2 and a connecting rope; a movable ring is slidably connected to the outer sleeve; a number of insertion rods are provided on the movable ring; a number of movable grooves are provided on the outer sleeve; each insertion rod is inserted into the corresponding movable groove; a block for locking and fixing the inner sleeve is slidably connected in each movable groove; a locking groove is provided on each block; each locking groove is inclined toward the inner sleeve; an elastic member 2 is fixed in each movable groove; each elastic member 2 is fixed to the corresponding block; a number of slots are provided on the outside of the inner sleeve; a number of connecting ropes are fixed to the movable ring; each connecting rope is fixed to the blowing pipe.

[0007] Optionally, each clamping block is provided with an inclined surface on a side facing the inner sleeve; and each clamping slot is provided with an inclined shape that fits the inclined surface.

[0008] Optionally, the inner sleeve is provided with a protrusion for facilitating pushing the inner sleeve.

[0009] Optionally, a side of each fixing plate facing the inner sleeve is configured as a frosted surface.

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

[0011] Optionally, a guide cover is also included; the left end of the blowing tube is fixedly connected to the guide cover for easy connection to the model inflation port; the guide cover is set to be hemispherical; and a plurality of air holes are opened on the guide cover.

[0012] Optionally, a rubber band is also included; the outer side of the inner sleeve is connected to a rubber band for fixing the inflation port of the model.

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

[0014] Optionally, a magnetic system is also included, which includes magnetic ring 1 and magnetic ring 2; magnetic ring 1 is fixed to the left part of the blowing tube; and magnetic ring 2 is fixed to the left end of the inner sleeve for fixing the inner sleeve.

[0015] The beneficial effects of the present invention are as follows: the present invention realizes pressing the inflation port to the outside of the inner sleeve by the fixing plate, eliminating the need for workers to fix the inflation port by tying it with a rope, thereby ensuring the fixing effect of the inflation port of the model while achieving convenient fixing of the inflation port 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, so that the inflation port and the blower are automatically separated in an emergency, preventing the blower from being swung when the inflatable model is lifted by strong wind, and avoiding accidental collision and injury to surrounding personnel caused by the blower;

[0017] By providing an inclined surface on the side of the clamping block facing the inner sleeve and making the clamping groove have an inclined structure with a depth on the left and a shallowness on the right, it is ensured that the rebound force of the second elastic member can drive the clamping block to reset, ultimately ensuring the normal operation of the emergency separation function of the inner sleeve and the outer sleeve;

[0018] The inflation port is guided to the left side of the inner sleeve through the guide cover, which makes it easier for the inflation port to be connected to the outer surface of the inner sleeve, thereby reducing the difficulty of connecting the inflation port. During normal inflation, the air flow through the air pipe can directly inflate the model through the air holes on the guide cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the intelligent constant pressure blower with air pressure detection function according to the present invention from a first viewing angle;

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

[0021] Figure 3 This is a schematic diagram of the combined three-dimensional structure of the blow pipe, outer sleeve, inner sleeve, fixing plate and guide cover of the present invention;

[0022] Figure 4 This is a schematic diagram of the combined three-dimensional structure of the blowpipe, outer sleeve, elastic member 1, inner sleeve, fixing plate, locking assembly and magnetic attraction system of the present invention;

[0023] Figure 5 A side view 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 state of the inflation port 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 clamping block assembly of the present invention.

[0026] The meanings of the reference numerals in the figure are: 1-blower, 2-blowing pipe, 3-outer sleeve, 3001-movable groove, 4-elastic part 1, 5-inner sleeve, 5001-recessed portion, 5002-protruding portion, 5003-slot, 6-fixing plate, 6001-extrusion portion, 101-movable ring, 10101-insertion rod, 102-block, 10201-locking groove, 10202-inclined surface, 103-elastic part 2, 104-connecting rope, 201-guide cover, 202-rubber band, 301-magnetic ring 1, 302-magnetic ring 2. DETAILED DESCRIPTION

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

[0028] Example 1: Figure 1-Figure 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 provided with the air blowing pipe 2; the blower 1 is composed of a servo motor, a fan housing and an impeller; the fan housing is provided with an air inlet and an air outlet; the air inlet is provided with a filter element for intercepting water vapor and impurities; the air blowing pipe 2 is connected to the air outlet; an electromagnetic relay is provided inside the blower 1 for controlling the start and stop of the blower 1; a pressure sensor is provided inside the blower 1 for real-time detection of air pressure; a controller is provided inside the blower 1 for receiving sensor signals and executing control logic; an electromagnetic exhaust valve is provided inside the blower 1 for automatic pressure relief in the event of overpressure; a power protection module is provided inside the blower 1 for overload protection and emergency stop of the blower 1;

[0029] It also includes an outer sleeve 3, an elastic part 4, an inner sleeve 5, a fixed plate 6 and a locking assembly; the outer side of the blowing tube 2 is slidably connected to the outer sleeve 3; the blowing tube 2 is provided with an elastic part 4, and the elastic part 4 is a spring; the elastic part 4 is connected to the outer sleeve 3; the outer side of the blowing tube 2 is slidably connected to the inner sleeve 5; the inner sleeve 5 is located on the left side of the outer sleeve 3; the outer side of the inner sleeve 5 is rotatably connected to a number of fixed plates 6 in a circular array through a torsion spring; the model inflation port is made of nylon fabric; each fixed plate 6 is provided with an extrusion portion 6001; the inner sleeve 5 is provided with a recessed portion 5001 that cooperates with the extrusion portion 6001; and a locking assembly is provided on the outer sleeve 3.

[0030] The locking assembly includes a movable ring 101, a clamping block 102, an elastic member 103 and a connecting rope 104; the outer sleeve 3 is slidably connected to the movable ring 101; the movable ring 101 is provided with a plurality of inserting rods 10101 in a circular array; the outer sleeve 3 is provided with a plurality of movable grooves 3001; each inserting rod 10101 is inserted into the corresponding movable groove 3001; each movable groove 3001 is slidably connected to a clamping block 102; each clamping block 102 is provided with a Locking groove 10201; each locking groove 10201 is set to an inclined shape toward the side of the inner sleeve 5; each movable groove 3001 is fixed with an elastic member 103, and the elastic member 103 is a spring; each elastic member 103 is fixed to the corresponding block 102; a plurality of grooves 5003 in a circular array are provided on the outside of the inner sleeve 5; a plurality of connecting ropes 104 in a circular array are fixed to the movable ring 101; each connecting rope 104 is fixed to the blowing tube 2.

[0031] Each block 102 is provided with an inclined surface 10202 on the side facing the inner sleeve 5 ; each slot 5003 is configured to be inclined to fit the inclined surface 10202 , so that the inner sleeve 5 can squeeze and separate the block 102 from the slot 5003 .

[0032] A protrusion 5002 is provided on the inner sleeve 5 .

[0033] The side of each fixing plate 6 facing the inner sleeve 5 is set to be a frosted surface, which is beneficial to enhancing the friction between the fixing plate 6 and the model inflation port and enhancing the pressing and fixing effect of the inflation port.

[0034] The left end of the outer sleeve 3 is configured as an arc surface, which is beneficial to reducing the friction between the fixing plate 6 and the left end of the outer sleeve 3 , and at the same time, facilitates the separation of the extrusion part 6001 from the left end of the outer sleeve 3 .

[0035] The air blowing tube 2 further comprises a guide cover 201 ; the left end of the air blowing tube 2 is fixedly connected to the guide cover 201 ; the guide cover 201 is configured to be hemispherical; and a plurality of air holes are provided on the guide cover 201 .

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

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

[0038] When it is necessary to inflate a large inflatable model, the staff first connects 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 part of the fixed plate 6 and the inner sleeve 5. Then the staff presses the protrusion 5002 across the inflation port and pushes the inner sleeve 5 together with the inflation port into the outer sleeve 3. During this process, the fixed plate 6 is squeezed by the left end of the outer sleeve 3 and rotates toward the surface of the inner sleeve 5. At the same time, the torsion spring on the fixed plate 6 is compressed, and the inflatable The air port is pressed to the outside of the inner sleeve 5 to achieve convenient fixation of the inflation port. When the extrusion part 6001 contacts the left end of the outer sleeve 3 as the inner sleeve 5 moves, the extrusion part 6001 is pressed into the recessed part 5001 through the left end of the outer sleeve 3, so that the extrusion part 6001 presses the inflation port into the recessed part 5001 and cooperates with the protrusion 5002 to make the outer side of the inflation port S-shaped and fixed on the outside of the inner sleeve 5, thereby strengthening the inflation port. When the inner sleeve 5 moves into the outer sleeve 3, combined with Figure 7 It is understood that the staff pushes the movable ring 101 to the left, so that the movable ring 101 drives the insertion rod 10101 to be inserted into the locking groove 10201. In this process, the insertion rod 10101 is guided by the inclined contact surface in the locking groove 10201 to push the card block 102 out of the movable groove 3001, and at the same time stretches the elastic member 103 to insert the card block 102 into the card groove 5003, and then fixes the inner sleeve 5 together with the model inflation port to the outer sleeve 3. There is no need for the staff to fix the inflation port by tying it with a rope. While ensuring the fixing effect of the model inflation port, the convenient fixation of the model inflation port is achieved.

[0039] When the model is inflated, the electromagnetic relay on the blower 1 is controlled to make the servo motor drive the impeller to rotate, and the outside air is drawn into the blower housing from the air inlet, and then blown into the inflatable model from the air pipe 2 to inflate the model. During the inflation process, the water vapor and impurities in the air are intercepted by the filter element arranged at the air inlet, so as to ensure the air intake while preventing water vapor and impurities from entering the inflatable model. During the continuous inflation process, the internal air pressure of the model is monitored in real time by the pressure sensor. When the internal air pressure of the inflatable model is high, the electromagnetic exhaust valve on the blower 1 is used to automatically relieve the pressure inside the model to prevent the model from over-expansion and rupture due to excessive air pressure. When the blower 1 is used up and the inflation port of the inflatable model needs to be separated from the blower 1, the electromagnetic relay is used. 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, thereby accelerating the recovery efficiency of the inflatable model. When the model is exhausted, the blower 1 is stopped by controlling the electromagnetic relay. Then the staff pushes the movable ring 101 to the right on the outer sleeve 3, driving the insertion rod 10101 to disengage from the locking groove 10201. After the block 102 loses the lock of the insertion rod 10101, it shrinks toward the movable groove 3001 under the elastic force of the elastic member 103, causing the block 102 to disengage from the slot 5003, thereby releasing the lock on the inner sleeve 5. Then the staff pulls the inner sleeve 5 together with the inflation port out of the outer sleeve 3 to the left. After the inner sleeve 5 is separated from the outer sleeve 3, the fixed plate 6 rebounds to the position as shown below under the elastic force of the torsion spring. Figure 3 The expanded state shown in the figure is 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, thereby realizing convenient disassembly of the inflation port.

[0040] It is also taken into consideration that when encountering strong winds, the inflatable model filled with gas is very likely to be lifted off the ground by the wind, and the inflation port of the traditional inflatable model is usually fixed with the blower 1 by a rope. When the inflatable model is lifted by the strong wind, it is easy to drive the blower 1 to swing, and the swinging blower 1 is easy to cause accidental collision and injury to the surrounding staff, posing a serious safety hazard. Therefore, when the inflatable model is about to be lifted off the ground by the blower 1 due to the wind, the model pulls the inner sleeve 5 through the inflation port. At this time, the inner sleeve 5 is blocked by the block 1. 02 is locked in the outer sleeve 3. When the inner sleeve 5 is pulled, the inflation port is pulled together with the outer sleeve 3, so that the inner sleeve 5 and the outer sleeve 3 move to the left on the blowing pipe 2 together, and the elastic member 4 is stretched at the same time. As the outer sleeve 3 moves to the left on the blowing pipe 2, the connecting rope 104 is gradually stretched by the movable ring 101. When the blower 1 is separated from the ground, the weight of the blower 1 is fully applied to the connection between the inflation port and the inner sleeve 5, so that the inflation port drives the inner sleeve 5 and the outer sleeve 3 to move to the left on the blowing pipe 2. At this time, the connecting rope 104 It is stretched and straightened, and limits the movable ring 101. As the outer sleeve 3 continues to move, the movable ring 101 moves to the right compared to the outer sleeve 3, driving the insertion rod 10101 to disengage from the locking groove 10201. After the block 102 loses the lock of the insertion rod 10101, it shrinks toward the movable groove 3001 under the elastic force of the elastic member 103, so that the block 102 disengages from the slot 5003, thereby releasing the lock on the inner sleeve 5. At this time, the connection between the outer sleeve 3 and the inner sleeve 5 is disconnected, and the outer sleeve 3 loses the pull of the inner sleeve 5. The force is released, and the air port is disengaged from between the inner sleeve 5 and the fixed plate 6, thereby realizing automatic separation of the air port and the blower 1 as a whole in an emergency, preventing the blower 1 from being swung when the inflatable model is lifted up by strong wind, and avoiding accidental collision damage to the surrounding staff by the blower 1, thereby improving the protection effect for the staff.

[0041] It is also taken into consideration that in the above-mentioned strong wind situation, the movable ring 101 moves to the right compared to the outer sleeve 3, driving the insertion rod 10101 to disengage from the locking groove 10201, and the reset pulling force of the outer sleeve 3 acts on the end of the block 102 near the elastic member 2 103. At the same time, the inner sleeve 5 is pulled to the left by the inflation port, so that the end of the block 102 inserted into the groove 5003 is subjected to a reverse force, resulting in the block 102 forming a two-way force clamping state at the junction of the movable groove 3001 and the groove 5003. At this time, the rebound force of the elastic member 2 103 is not enough to overcome the clamping resistance, causing the block 102 to remain in the groove 5003, and ultimately causing the emergency separation function of the inner sleeve 5 and the outer sleeve 3 to fail, and it cannot be realized. The inflation port and the blower 1 are automatically separated as a whole. Therefore, by setting an inclined surface 10202 on the side of the block 102 facing the inner sleeve 5, and making the slot 5003 have an inclined structure with a left-deep and a right-shallow angle, when the inner sleeve 5 is pulled to the left by the inflation port and drives the insertion end of the block 102 to move, the inclined surface of the slot 5003 exerts an outward force on the inclined surface 10202, pushing the block 102 out of the slot 5003, thereby releasing the clamping state of the movable slot 3001 and the slot 5003 on the block 102, ensuring that the rebound force of the elastic member 103 can drive the 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] It is also taken into consideration that when the outer diameter of the inflation port equipped with the model is small, due to the insufficient assembly gap between the outer surface of the inner sleeve 5 and the inner wall of the inflation port, the staff needs to overcome a large friction resistance when performing the sleeve operation, and is also limited by the elastic deformation range of the inflation port material, which makes the sleeve process difficult. Therefore, by providing a guide cover 201 at the left end of the blowing tube 2, the staff can guide the inflation port to the left side of the inner sleeve 5 during sleeve operation, which facilitates the sleeve connection of the inflation port to the outer surface of the inner sleeve 5, and helps to reduce the difficulty of sleeve connection of the inflation port. During normal inflation, the air flow passing through the blowing tube 2 can directly inflate the model through the air holes on the guide cover 201.

[0043] It is also taken into consideration that when the outer diameter of the inflation port equipped with the model is large, the staff needs to fold the excess part of the inflation port after completing the operation of fitting the inflation port and the inner sleeve 5. However, due to the structural limitations of the fixing plate 6, in the process of pushing the assembled inner sleeve 5 into the outer sleeve 3, the staff cannot apply continuous and effective pressing pressure to the folded part of the inflation port, resulting in the folding structure of the inflation port to unfold automatically due to the loss of external force constraint during the movement, thereby reducing the final fixing effect of the fixing plate 6 on the inflation port. Therefore, after the staff completes the fitting operation of the inflation port and the inner sleeve 5, the rubber band 202 is removed from the surface of the inner sleeve 5 and re-fitted to the folded part of the inflation port to implement constraint and limitation. In the subsequent process of pushing the inner sleeve 5 as a whole into the interior of the outer sleeve 3, the rubber band 202 continues to apply radial pressure to the folding structure of the inflation port, effectively preventing the folded part from unfolding automatically due to loss of constraint, thereby ensuring that the fixing plate 6 can accurately act on the predetermined fixed position, thereby ensuring the final fixing effect of the fixing plate 6 on the inflation port.

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

[0045] It is also taken into consideration that when the outer diameter of the inflation port equipped with the model is small, due to the insufficient assembly gap between the outer surface of the inner sleeve 5 and the inner wall of the inflation port, the staff may easily push the inner sleeve 5 into the outer sleeve 3 when performing the sleeve operation, so that the inflation port cannot be normally sleeved on the outside of the inner sleeve 5, which increases the difficulty of the sleeve operation. Therefore, when the inflation port is sleeved to the outside of the inner sleeve 5, the magnetic ring 1 301 adsorbs the magnetic ring 2 302, and then adsorbs and fixes the inner sleeve 5 to prevent the inner sleeve 5 from moving into the outer sleeve 3 during the sleeve operation, thereby reducing the difficulty of the sleeve operation. When the sleeve operation is completed, the staff pushes the inner sleeve 5 axially along the blowing tube 2 to overcome the magnetic attraction force to separate the magnetic ring 1 301 and the magnetic ring 2 302.

[0046] The above is a detailed introduction to the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, based on the idea of ​​the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An intelligent constant pressure blower with an air pressure detection function, comprising a blower (1) and an air blowing pipe (2); the blower (1) is provided with the air blowing pipe (2); and the characteristics are: The outer sleeve (3), an elastic member (4), an inner sleeve (5), a fixing plate (6) and a locking assembly are also included; the outer sleeve (3) is slidably connected to the outer side of the air blowing tube (2); the elastic member (4) is provided on the air blowing tube (2); the elastic member (4) is connected to the outer sleeve (3); the inner sleeve (5) is slidably connected to the outer side of the air blowing tube (2); the inner sleeve (5) is located on the left side of the outer sleeve (3); the outer side of the inner sleeve (5) is rotatably connected to a plurality of fixing plates (6) for fixing the model inflation port; each fixing plate (6) is provided with an extrusion portion (6001) for reinforcing the inflation port; the inner sleeve (5) is provided with a recessed portion (5001) that cooperates with the extrusion portion (6001); The outer sleeve (3) is provided with a locking assembly for locking the inner sleeve (5).

2. The intelligent constant pressure blower with air pressure detection function according to claim 1 is characterized in that: The locking assembly comprises a movable ring (101), a clamping block (102), a second elastic member (103) and a connecting rope (104); the outer sleeve (3) is slidably connected to the movable ring (101); a plurality of insertion rods (10101) are provided on the movable ring (101); a plurality of movable grooves (3001) are provided on the outer sleeve (3); each insertion rod (10101) is inserted into a corresponding movable groove (3001); a clamping block (102) for locking the inner sleeve (5) is slidably connected in each movable groove (3001); Each clamping block (102) is provided with a locking groove (10201); each locking groove (10201) is arranged in an inclined shape toward the side of the inner sleeve (5); each movable groove (3001) is fixedly connected to an elastic member 2 (103); each elastic member 2 (103) is fixedly connected to the corresponding clamping block (102); a plurality of clamping grooves (5003) are provided on the outer side of the inner sleeve (5); a plurality of connecting ropes (104) are fixedly connected to the movable ring (101); each connecting rope (104) is fixedly connected to the blowing pipe (2).

3. The intelligent constant pressure blower with air pressure detection function according to claim 2 is characterized in that: Each clamping block (102) is provided with an inclined surface (10202) on the side facing the inner sleeve (5); and each clamping slot (5003) is provided in an inclined shape that fits in with the inclined surface (10202).

4. The intelligent constant pressure blower with air pressure detection function according to claim 3 is characterized in that: The inner sleeve (5) is provided with a protrusion (5002) for facilitating the pushing of the inner sleeve (5).

5. The intelligent constant pressure blower with air pressure detection function according to claim 4 is characterized in that: The side of each fixing plate (6) facing the inner sleeve (5) is configured as a frosted surface.

6. The intelligent constant pressure blower with air pressure detection function according to claim 2, characterized in that: The left end of the outer sleeve (3) is arranged as an arc surface.

7. The intelligent constant pressure blower with air pressure detection function according to claim 2, characterized in that: The invention also comprises a guide cover (201); the left end of the blowing pipe (2) is fixedly connected with the guide cover (201) for easy connection with the inflation port of the model; the guide cover (201) is arranged in a hemispherical shape; and a plurality of air holes are provided on the guide cover (201).

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

9. The intelligent constant pressure blower with air pressure detection function according to claim 7, characterized in that: The outer side surface of the air blowing pipe (2) is a smooth surface.

10. The intelligent constant pressure blower with air pressure detection function according to claim 9, characterized in that: The invention also includes a magnetic attraction system, which includes a magnetic attraction ring 1 (301) and a magnetic attraction ring 2 (302); the left part of the blowing pipe (2) is fixedly connected to the magnetic attraction ring 1 (301); and the left end of the inner sleeve (5) is fixedly connected to the magnetic attraction ring 2 (302) for fixing the inner sleeve (5).

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