Air conditioning unit air supply hose connector with stress detection function

Abstract

The utility model discloses an air-conditioning unit air supply hose joint with stress detection, which comprises an upper joint pipe and a lower joint pipe which are butted up and down, and the upper joint pipe is positioned above the lower joint pipe; the upper section pipe and the lower section pipe are matched with the fixed support, the reset spring and the stress sensor, so that the stress condition between the upper section pipe and the lower section pipe and the state of the upper section pipe and the air connecting port of the airplane are detected and identified, and the air connecting port of the airplane is connected with the air connecting port of the airplane through the fixed support, the reset spring and the stress sensor. The upper section pipe can move up and down on the top of the lower section pipe, and when the upper section pipe is pulled to move, the stress sensor detects the pressing force of the upper section pipe on the stress sensor and transmits a signal to the control unit; and a worker determines whether to determine to move the aircraft air conditioning unit according to the transmitted signal.

Description

Technical Field

[0001] This utility model relates to the field of air supply hose connectors for air conditioning units, and in particular to an air supply hose connector for air conditioning units with stress detection. Background Technology

[0002] Currently, commonly used aircraft ground air conditioning units are installed at the bottom of the boarding bridge or placed directly on the ground. When the aircraft ground air conditioning unit supplies cool air, fresh air, or heat to the aircraft, ground staff usually manually connect the air supply duct connector to the aircraft's air inlet and tighten it. When the aircraft ground air conditioning unit is started, it sends an air conditioning unit use signal to the boarding bridge, interlocking the boarding bridge. At this time, for safe operation, the boarding bridge cannot be moved.

[0003] However, in actual use, when the aircraft ground air conditioning unit is supplying air to the aircraft, there are often situations where it is necessary to move the boarding bridge. If the boarding bridge is moved without opening the air duct, the air supply hose and connector that are connected to the aircraft may pull on the aircraft, causing safety accidents such as damage to equipment and aircraft. Therefore, an air supply hose connector for the air conditioning unit with stress detection is needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an air supply hose connector for air conditioning units with force detection, which solves the problem that the air supply hose connector cannot trigger an alarm when it is moved while connected.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An air supply hose connector for an air conditioning unit with stress detection, comprising:

[0007] An upper section pipe and a lower section pipe are connected vertically, with the upper section pipe located above the lower section pipe;

[0008] A fixed bracket is sleeved on the outside of the lower section tube. The inner wall of the fixed bracket has multiple movable holes. A movable rod is inserted into each of the movable holes and into the upper section tube. The upper section tube moves up and down along the movable rod. A return spring is sleeved on the outside of the movable rod. The top and bottom of the return spring are connected to the fixed bracket and the upper section tube, respectively.

[0009] A force sensor is mounted on the fixed bracket, and the output end of the force sensor abuts against the upper section of the tube.

[0010] Furthermore, the ends of the upper and lower sections of the tube that are connected to each other protrude outward to form a disc, and a through hole is provided on the disc. The movable rod is inserted into the through hole, and the return spring abuts between the two discs.

[0011] Furthermore, the fixed bracket has a ring structure, and the top of the fixed bracket has multiple mounting slots circumferentially formed along its own center. The force sensor is installed inside the mounting slot, and the multiple force sensors are distributed circumferentially and abut against the upper section tube.

[0012] Furthermore, the top of the upper section tube protrudes outward to form a frustum, and multiple openings are provided on the frustum.

[0013] Furthermore, a pressure sensor is installed at the top of the truncated cone at the location of the opening, and a reset spring that can move up and down is installed on the pressure sensor, with the bottom end of the reset spring moving up and down within the opening.

[0014] Furthermore, an air supply hose is sleeved on the outside of the upper section pipe and the lower section pipe, the air supply hose including a flexible hose and a folded pipe.

[0015] Furthermore, the top portion of the flexible tube is wrapped around the outside of the lower section tube, the folded tube is wrapped around the outside of the lower section tube, and the top portion of the folded tube is wrapped around the outside of the upper section tube.

[0016] Furthermore, a lower tightening buckle is provided on the outside of the hose, and the lower tightening buckle is located at the position of the lower section of the tube.

[0017] Furthermore, an upper tightening buckle is fitted over the outside of the folded tube, and the upper tightening buckle is located at the position of the upper section of the tube.

[0018] Furthermore, the upper tightening buckle includes two semi-circular tightening buckles, and a fixing block is fixed at the position where the two tightening buckles meet. The two fixing blocks are connected by bolts.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Through the upper and lower sections of the air conditioning unit, along with a fixed bracket, a return spring, and a force sensor, the system detects and identifies the force between the upper and lower sections and the status of the upper section relative to the aircraft's air inlet. The force detection signal generated during the detection process is transmitted to the centralized control unit via a signal cable. The upper section can move up and down above the lower section. When the upper section is pulled, the force sensor detects the pressure exerted by the upper section and transmits the signal to the control unit. This allows staff to determine whether to move the aircraft air conditioning unit based on the transmitted signal. This prevents accidental damage to the aircraft and ground air conditioning unit caused by the boarding bridge operator removing the bridge during connection to the aircraft, effectively ensuring the safe operation of the airport's aircraft ground air conditioning unit.

[0021] 2. The connection status between the upper tube and the aircraft is detected in real time by the pressure sensor and reset spring on the upper tube and the electrical signal is transmitted to the central control unit. That is, when the upper tube is docked with the aircraft, the pressure sensor is pressed. When the upper tube is not docked with the aircraft, the pressure sensor is not pressed. The connection status of the upper tube with the aircraft is determined based on the two situations. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0024] Figure 1 This is the first three-dimensional schematic diagram of the whole;

[0025] Figure 2 This is a schematic diagram of the second three-dimensional structure as a whole;

[0026] Figure 3 This is a schematic diagram of the overall front view.

[0027] Figure 4 This is a schematic diagram of the overall frontal sectional view;

[0028] Figure 5 for Figure 1 Enlarged diagram of point A in the middle.

[0029] Illustration: 1. Upper section tube; 101. Opening; 2. Lower section tube; 3. Return spring; 301. Movable rod; 4. Fixed bracket; 5. Force sensor; 6. Air supply hose; 7. Upper tightening buckle; 8. Lower tightening buckle; 9. Pressure sensor; 10. Return spring. Detailed Implementation

[0030] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below 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 skilled in the art without creative effort are within the scope of protection of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0032] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0033] This utility model embodiment provides an air supply hose connector for an air conditioning unit with stress detection. Please refer to [link / reference]. Figures 1-3 The system includes: an upper tube 1 and a lower tube 2 connected vertically, a fixed bracket 4, and a force sensor 5. The upper tube 1 is located above the lower tube 2. The fixed bracket 4 is sleeved on the outside of the lower tube 2. The inner ring of the fixed bracket 4 has multiple movable holes. A movable rod 301 is inserted into the movable holes and is inserted into the upper tube 1. The upper tube 1 moves up and down on the movable rod 301. A return spring 3 is sleeved on the outside of the movable rod 301. The top and bottom of the return spring 3 are connected to the fixed bracket 4 and the upper tube 1, respectively. The force sensor 5 is installed on the fixed bracket 4, and the output end of the force sensor 5 abuts against the upper tube 1.

[0034] like Figures 1-3As shown, the upper section pipe 1 and the lower section pipe 2 constitute the main structure of the air supply hose 6 connector. The lower section pipe 2 is used to connect the air supply duct of the air conditioning unit, and the upper section pipe 1 is used to connect the aircraft to realize the air supply.

[0035] The fixed bracket 4 provides stable support and fixation for the entire joint structure. At the same time, the force sensor 5 is installed on it. The fixed bracket 4 is fixed to the lower section pipe 2 in a circular structure, which is used for the upper section pipe 1 to be installed on the lower section pipe 2, so as to ensure that the components of the joint maintain a stable relative position during the operation of the air conditioning unit.

[0036] The cooperation between the movable rod 301 and the movable hole provides guidance and constraint for the upper tube 1 to move up and down, allowing the upper tube 1 to move only in a limited vertical direction. This design allows the upper tube 1 to move up and down within a certain range. That is, in order to provide the force sensor 5 to detect the pressure on the upper tube 1 itself when it moves up and down, and the return spring 3 provides elastic force to restore the upper tube 1 to its initial position when it is displaced up and down by external force. That is, after being pulled, the staff can unlock the upper tube 1 from the aircraft to return the upper tube 1 to its initial position, ensuring the normal working condition of the connector and providing normal data for subsequent testing.

[0037] Force sensor 5 is used to detect the magnitude and direction of the force on the upper pipe 1 in real time. By installing force sensor 5, the force on the joint during the air supply process of the air conditioning unit can be monitored in real time. When the force exceeds the set safety range, an alarm can be issued in time to remind the staff to check and avoid damage to the joint due to excessive force, which would affect the air supply system of the entire air conditioning unit and improve the safety and reliability of the system.

[0038] Operation Process: During normal operation of the air conditioning unit, air is delivered through the air supply hose 6 connector. The upper section 1 and lower section 2 maintain a relatively stable position under the support of the fixed bracket 4. When some factors cause the upper section 1 to be subjected to an upward force during the operation of the air conditioning unit, the upper section 1 will move upward along the movable rod 301, compressing the return spring 3 at the same time. The force sensor 5 detects the upward force on the upper section 1 in real time and transmits the signal to the control system, thereby triggering an alarm and reminding the staff not to continue moving the boarding bridge. When the external force disappears, the elasticity of the return spring 3 will cause the upper section 1 to move downward and return to its initial position. If the upper section 1 is subjected to a downward force, the process is similar. The upper section 1 moves downward and compresses the return spring 3. The force sensor 5 detects the downward force and transmits the signal. After the external force disappears, the return spring 3 causes the upper section 1 to return upward. Throughout the process, the force sensor 5 continuously monitors the force to ensure that the connector operates within a safe force range.

[0039] Please see Figure 1 and Figure 2 The upper tube 1 and the lower tube 2 are connected at opposite ends and both protrude outward to form a disc. The disc has a through hole, the movable rod 301 is inserted into the through hole, and the return spring 3 is pressed between the two discs.

[0040] like Figure 1 and Figure 2 As shown, the disc increases the contact area at the joint of the upper tube 1 and the lower tube 2, providing a stable support platform for the insertion of the movable rod 301 and the installation of the return spring 3. At the same time, the disc structure enables the upper tube 1 and the lower tube 2 to be better positioned and connected during the joint, ensuring the structural stability of the entire joint.

[0041] The through hole provides a precise installation position for the movable rod 301, allowing it to be accurately inserted into the upper tube 1 and the lower tube 2, enabling the upper tube 1 to move up and down on the movable rod 301. The cooperation between the movable rod 301 and the through hole serves as a guide and limiter, ensuring that the upper tube 1 can only move up and down in the vertical direction and will not deviate in the horizontal direction.

[0042] When the upper tube 1 is subjected to external force and moves up and down, the return spring 3 provides elastic force to restore the upper tube 1 to its initial position. When the upper tube 1 moves upward, the return spring 3 is compressed, generating a downward elastic force. When the upper tube 1 moves downward, the return spring 3 is stretched, generating an upward elastic force.

[0043] Please continue reading. Figure 1 and Figure 2 The fixed bracket 4 has a ring structure, and multiple mounting slots are provided on the top of the fixed bracket 4 along its own center. The force sensor 5 is installed inside the mounting slot, and the multiple force sensors 5 are distributed along the ring and abut against the upper section tube 1.

[0044] like Figure 1 and Figure 2 As shown, the force sensor 5 can detect the axial and radial forces on the upper section pipe 1 in 360 degrees and transmit the electrical signals to the centralized control unit.

[0045] The ring-shaped fixing bracket 4 can be tightly and evenly fitted onto the outside of the lower section pipe 2, providing a stable support frame for the entire joint. It can adapt well to the cylindrical shape of the pipe, ensuring that the connection between the fixing bracket 4 and the lower section pipe 2 is firm and will not easily loosen or shift due to external forces.

[0046] The mounting slots provide a precise mounting position for the force sensor 5, ensuring that the force sensor 5 can be accurately installed on the fixed bracket 4. The annular distribution design of multiple mounting slots allows the force sensor 5 to be installed in a specific layout to meet the needs of force detection at different positions of the upper tube 1.

[0047] Installing the force sensor 5 in the mounting slot can protect it from collisions or damage during installation and use. At the same time, the mounting slot can provide a certain positioning and fixing function for the force sensor 5, ensuring a tight connection between the force sensor 5 and the fixed bracket 4 and stable signal transmission.

[0048] Multiple force sensors 5 are distributed in a ring to simultaneously detect the force on the upper tube 1 from different directions, enabling comprehensive and accurate acquisition of the force on the upper tube 1 at various positions. The force sensors 5 press against the upper tube 1, allowing the upper tube 1 to directly transmit the force to the force sensors 5 when it is subjected to force, thus achieving real-time force detection.

[0049] Please see Figures 1-3 The top of the upper section tube 1 protrudes outward to form a truncated cone. Multiple openings 101 are provided on the truncated cone. A pressure sensor 9 is installed at the top of the truncated cone at the position of the opening 101. A reset spring 10 that can move up and down is installed on the pressure sensor 9. The bottom end of the reset spring 10 moves up and down within the opening 101.

[0050] like Figures 1-3 As shown, the frustum structure increases the surface area of ​​the top of the upper tube 1, providing more space for subsequent operations such as installing the pressure sensor 9 and opening the hole 101. At the same time, the shape of the frustum has a certain guiding and force-dispersing effect. When an external force is applied to the top of the upper tube 1, the frustum can make the force distribution more uniform and reduce local stress concentration.

[0051] The opening 101 provides an installation position for the subsequent installation of the pressure sensor 9 and the reset spring 10. The design of multiple openings 101 can arrange the pressure sensor 9 according to actual needs to realize the detection of pressure at different positions.

[0052] The pressure sensor 9 is a key component for detecting pressure changes. Installed at the opening 101, it can detect the connection status between the air supply hose 6 connector and the aircraft and transmit the electrical signal to the central control unit so as to monitor the pressure on the top of the upper section pipe 1 in real time.

[0053] The reset spring 10 serves to transmit pressure and reset. When pressure is applied to the reset spring 10, the reset spring 10 will move downward and transmit the movement signal to the pressure sensor 9. When the pressure disappears, the reset spring 10 returns to its initial position to ensure accurate detection of pressure changes next time. A spring is provided between the pressure sensor 9 and the reset spring 10.

[0054] The bottom end of the reset spring 10 moves up and down within the opening 101. When pressure is applied to the reset spring 10, the reset spring 10 moves downward and enters the interior of the opening 101. The opening 101 provides space for the reset spring 10 to move up and down, preventing obstruction.

[0055] Please continue reading. Figures 1-3 An air supply hose 6 is fitted over the upper section pipe 1 and the lower section pipe 2. The air supply hose 6 includes a hose and a folded pipe. The top part of the hose is wrapped around the outside of the lower section pipe 2, the folded pipe is wrapped around the outside of the lower section pipe 2, and the top part of the folded pipe is wrapped around the outside of the upper section pipe 1.

[0056] like Figures 1-3 As shown, the air supply hose 6 serves to connect and transport air, delivering the cold or hot air generated by the air conditioning unit from the unit to the area requiring ventilation. As an air transmission channel, it is an indispensable component of the air conditioning air supply system and can flexibly adapt to different installation environments and layout requirements.

[0057] The combination design of flexible hoses and folded pipes fully leverages the advantages of two different pipe structures. Flexible hoses typically have good flexibility and sealing properties, ensuring smooth air delivery, while folded pipes have better extensibility and compensation capabilities, allowing them to adapt to movement between the upper pipe section 1 and the lower pipe section 2.

[0058] The top portion of the flexible hose is wrapped around the outside of the lower section 2. This wrapping method securely connects the flexible hose to the lower section 2, preventing air leakage at the connection point. The top portion of the folded tube is wrapped around the outside of the upper section 1. This wrapping method tightly connects the folded tube to the upper section 1, forming a complete air supply channel. At the same time, it can also limit the range of motion of the upper section 1 to a certain extent, ensuring that the upper section 1 can move stably up and down under the action of the movable rod 301 and the return spring 3, without excessive deviation. During the up and down movement of the upper section 1, the upper section 1 will drive the folded tube to extend, retract, and fold, without affecting the force sensor 5's detection of the activity pressure of the upper section 1.

[0059] Please continue reading. Figures 1-3 The hose is fitted with a lower tightening buckle 8, which is located at the lower section 2. The folded tube is fitted with an upper tightening buckle 7, which is located at the upper section 1. The upper tightening buckle 7 includes two semi-circular tightening buckles. Fixing blocks are fixed at the joints of the two tightening buckles, and the two fixing blocks are connected by bolts.

[0060] like Figures 1-3As shown, the lower tightening buckle 8 is mainly used to tighten and fix the hose sleeved on the outside of the lower section tube 2. It can provide sufficient pressure to make the hose fit tightly against the lower section tube 2, preventing the hose from loosening, shifting or leaking air between the hose and the lower section tube 2.

[0061] The function of the upper tightening buckle 7 is similar to that of the lower tightening buckle 8. It tightens and fixes the folded tube wrapped around the upper section tube 1. Since the folded tube has a certain degree of elasticity and flexibility, the upper tightening buckle 7 can ensure that the folded tube and the upper section tube 1 are tightly connected, preventing the folded tube from sliding or deforming during use, while not affecting the up-and-down movement of the upper section tube 1.

[0062] The upper tightening buckle 7 and the lower tightening buckle 8 have the same structure, both adopting a design of two semi-circular ring tightening buckles, which facilitates the installation and disassembly of the upper tightening buckle 7 and the lower tightening buckle 8. During installation, the two semi-circular ring tightening buckles can be put on the folded pipe and the flexible hose respectively, and then the fixing block is connected by bolts to tighten and fix the folded pipe and the flexible hose. During disassembly, simply loosen the bolts to separate the two semi-circular ring tightening buckles, which facilitates the maintenance and repair of the air supply hose 6 connector.

[0063] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A flexible air supply hose connector for an air conditioning unit with stress detection, characterized in that, include: The upper section pipe (1) and the lower section pipe (2) are connected vertically, with the upper section pipe (1) located above the lower section pipe (2); A fixed bracket (4) is sleeved on the outside of the lower section tube (2). The inner wall of the fixed bracket (4) has multiple movable holes. A movable rod (301) is inserted into the movable holes and into the upper section tube (1). The upper section tube (1) moves up and down on the movable rod (301). A return spring (3) is sleeved on the outside of the movable rod (301). The top and bottom of the return spring (3) are connected to the fixed bracket (4) and the upper section tube (1) respectively. Force sensor (5) is installed on the fixed bracket (4), and the output end of the force sensor (5) abuts against the upper tube (1).

2. The air supply hose connector for an air conditioning unit with force detection according to claim 1, characterized in that, The upper tube (1) and the lower tube (2) both protrude outward to form a disc, and the disc has a through hole. The movable rod (301) is inserted into the through hole, and the return spring (3) abuts between the two discs.

3. The air supply hose connector for an air conditioning unit with force detection according to claim 1, characterized in that, The fixed bracket (4) has a ring structure, and the top of the fixed bracket (4) is provided with multiple mounting slots along its own center. The force sensor (5) is installed inside the mounting slot, and the multiple force sensors (5) are distributed along the ring and abut against the upper section tube (1).

4. The air supply hose connector for an air conditioning unit with force detection according to claim 1, characterized in that, The top of the upper section tube (1) protrudes outward to form a frustum, and multiple openings (101) are provided on the frustum.

5. The air supply hose connector for an air conditioning unit with force detection according to claim 4, characterized in that, A pressure sensor (9) is installed at the top of the truncated cone at the position of the opening (101). A reset spring (10) that can move up and down is installed on the pressure sensor (9). The bottom end of the reset spring (10) moves up and down within the opening (101).

6. The air supply hose connector for an air conditioning unit with force detection according to claim 1, characterized in that, An air supply hose (6) is fitted around the upper section pipe (1) and the lower section pipe (2), the air supply hose (6) including a hose and a folded pipe.

7. The air supply hose connector for an air conditioning unit with force detection according to claim 6, characterized in that, The top part of the hose is wrapped around the outside of the lower section tube (2), the folded tube is wrapped around the outside of the lower section tube (2), and the top part of the folded tube is wrapped around the outside of the upper section tube (1).

8. The air supply hose connector for an air conditioning unit with force detection according to claim 7, characterized in that, The hose is fitted with a lower tightening buckle (8), which is located at the position of the lower section (2).

9. The air supply hose connector for an air conditioning unit with force detection according to claim 7, characterized in that, The folded tube is fitted with an upper tightening buckle (7), which is located at the position of the upper section tube (1).

10. An air supply hose connector for an air conditioning unit with force detection according to claim 9, characterized in that, The upper tightening buckle (7) includes two semi-circular tightening buckles. A fixing block is fixed at the position where the two tightening buckles meet. The two fixing blocks are connected by bolts.

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