Air conditioning unit air supply hose connector with stress detection function

Abstract

The invention discloses an air conditioning unit air supply hose connector with stress detection, which comprises an upper section pipe and a lower section pipe which are butted up and down, and the upper section pipe is positioned above the lower section pipe; the device has the following beneficial effects that the upper section pipe and the lower section pipe are matched with the fixing 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 opening of the airplane are detected and recognized; 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] The invention 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 force detection function. Background Art

[0002] Currently, commonly used aircraft ground air conditioning units are installed at the bottom of boarding bridges or placed directly on the ground. When the aircraft ground air conditioning unit supplies cooling air, fresh air or heating to the aircraft, ground staff generally manually connect the air supply pipe connector to the aircraft air inlet and tighten it. When the aircraft ground air conditioning unit is started, the air conditioning unit will send an air conditioning unit use signal to the boarding bridge, interlocking the boarding bridge. At this time, for safe operation, the boarding bridge cannot move.

[0003] However, in actual use, when the aircraft ground air conditioning unit is supplying air to the aircraft, it is often necessary to move the boarding bridge. When the boarding bridge has not yet been unlocked, if the air duct is not disconnected, the air supply hose and connector connected to the aircraft will cause pulling on the aircraft, causing safety accidents such as damage to equipment and aircraft. Therefore, an air supply hose connector for an air conditioning unit with force detection is needed to solve the above problem. Summary of the Invention

[0004] The purpose of the present invention is to provide an air supply hose connector for an air conditioner unit with force detection, so as to solve the problem that the current air supply hose connector cannot alarm after being moved when in a connected state.

[0005] To achieve this object, the present invention adopts the following technical solutions: An air supply hose connector for an air conditioning unit with force detection function, comprising: An upper tube section and a lower tube section connected to each other, wherein the upper tube section is located above the lower tube section; A fixed bracket, the fixed bracket is sleeved on the outside of the lower tube, the inner ring inner wall of the fixed bracket is provided with a plurality of movable holes, a movable rod is inserted into the inside of the movable hole, and the movable rod is inserted into the upper tube, the upper tube moves up and down on the movable rod, the movable rod is sleeved on the outside of the return spring, the top and bottom of the return spring are respectively connected to the fixed bracket and the upper tube; and A force sensor is mounted on the fixing bracket, and an output end of the force sensor abuts against the upper tube.

[0006] Furthermore, the ends of the upper tube and the lower tube that are connected to each other are both protruded outward to form a disc, and a through hole is opened on the disc, the movable rod is inserted into the through hole, and the return spring is pressed between the two discs.

[0007] Furthermore, the fixing bracket is annular in structure, and a plurality of mounting grooves are provided on the top of the fixing bracket along its own central ring shape, the force sensor is installed inside the mounting groove, and the plurality of force sensors are distributed along the ring shape and against the upper tube section.

[0008] Furthermore, the top of the upper tube section protrudes outward to form a truncated cone, and a plurality of openings are formed on the truncated cone.

[0009] Furthermore, a pressure sensor is installed on the top of the cone at the position of the opening, and a reset spring that can move up and down is installed on the pressure sensor, and the bottom end of the reset spring moves up and down in the opening.

[0010] Furthermore, an air supply hose is sleeved on the exterior of the upper tube section and the lower tube section, and the air supply hose includes a hose and a folding tube.

[0011] Furthermore, the top portion of the hose is wrapped around the outside of the lower tube section, the folded tube is wrapped around the outside of the lower tube section, and the top portion of the folded tube is wrapped around the outside of the upper tube section.

[0012] Furthermore, a lower tightening buckle is provided on the outer sleeve of the hose, and the lower tightening buckle is located at the position of the lower section of the tube.

[0013] Furthermore, an upper tightening buckle is provided on the outside of the folding tube, and the upper tightening buckle is located at the position of the upper section tube.

[0014] Furthermore, the upper tightening buckle includes two semicircular tightening buckles, and a fixing block is fixed at the position where the two tightening buckles are connected to each other, and the two fixing blocks are connected by bolts.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the upper and lower tubes, in conjunction with the fixing bracket, return spring and force sensor, the force condition between the upper and lower tubes and the status of the upper tube and the aircraft air inlet are detected and identified, and the force detection signal generated during the detection process is transmitted to the centralized control unit through the signal cable. That is, the upper tube can move up and down on the top of the lower tube. When it is pulled and moved by the upper tube, the force sensor detects the pressure of the upper tube on itself and transmits the signal to the control unit. The staff determines whether to move the aircraft air conditioning unit based on the transmitted signal, avoiding accidental damage to the aircraft and the ground air conditioning unit due to the boarding bridge operator withdrawing the bridge when the aircraft ground air conditioning unit is connected to the aircraft, effectively ensuring the safe operation of the airport aircraft ground air conditioning unit.

[0016] 2. Through the pressure sensor and reset spring on the upper tube, the connection status between the upper tube and the aircraft is detected in real time, and the electrical signal is transmitted to the centralized 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. Whether the upper tube is docked with the aircraft is determined based on these two situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and objectives that can be achieved by the present invention.

[0019] Figure 1 It is the first stereoscopic schematic diagram of the whole; Figure 2 is a second stereoscopic schematic diagram of the whole; Figure 3 This is a schematic diagram of the overall front combination; Figure 4 It is a schematic cross-sectional view of the overall front assembly; Figure 5 for Figure 1 Enlarged schematic diagram of point A in the middle.

[0020] Illustration: 1. Upper tube section; 101. Opening; 2. Lower tube section; 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 DESCRIPTION

[0021] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0023] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0024] The embodiment of the present invention provides an air supply hose connector for an air conditioner unit with force detection, see Figure 1-Figure 3 , including: an upper tube section 1 and a lower tube section 2 connected to each other, a fixed bracket 4 and a force sensor 5, the upper tube section 1 is located above the lower tube section 2; the fixed bracket 4 is sleeved on the outside of the lower tube section 2, and a plurality of movable holes are opened on the inner wall of the inner ring of the fixed bracket 4, and a movable rod 301 is inserted into the inside of the movable hole, and the movable rod 301 is inserted into the upper tube section 1, and the upper tube section 1 moves up and down on the movable rod 301, and a reset spring 3 is sleeved on the outside of the movable rod 301, and the top and bottom of the reset spring 3 are respectively connected to the fixed bracket 4 and the upper tube section 1; the force sensor 5 is installed on the fixed bracket 4, and the output end of the force sensor 5 is against the upper tube section 1.

[0025] like Figure 1-Figure 3 As shown, the upper tube section 1 and the lower tube section 2 constitute the main structure of the air supply hose 6 joint. The lower tube section 2 is used to connect to the air supply duct of the air conditioning unit, and the upper tube section 1 is used to connect to the aircraft to realize air transportation.

[0026] The fixed bracket 4 provides stable support and fixing for the entire joint structure. At the same time, the force sensor 5 is installed on it. The fixed bracket 4 is fixed on the lower section pipe 2 in a circular ring structure, and is used to install the upper section pipe 1 on the lower section pipe 2 to ensure that the various components of the joint maintain a stable relative position during the operation of the air-conditioning unit.

[0027] The cooperation between the movable rod 301 and the movable hole provides guidance and constraints for the upper section tube 1 to move up and down, so that the upper section tube 1 can only move limitedly in the vertical direction. This design allows the upper section tube 1 to move up and down within a certain range, that is, in order to provide subsequent upper section tube 1 when moving up and down, the force sensor 5 can detect the pressure of the upper section tube 1 on itself, and the reset spring 3 provides elastic force to restore the upper section tube 1 to its initial position when the upper section tube 1 is displaced up and down by external force, that is, after being pulled, the staff unlocks the upper section tube 1 from the aircraft, so that the upper section tube 1 returns to its initial position, ensuring the normal working state of the joint and providing normal data for subsequent detection.

[0028] The force sensor 5 is used to detect the magnitude and direction of the force applied to the upper section pipe 1 in real time. By installing the force sensor 5, the force conditions at 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, so as to avoid damage to the joint due to excessive force, which in turn affects the air supply system of the entire air-conditioning unit, thereby improving the safety and reliability of the system.

[0029] Operation process: When the air-conditioning unit is operating normally, air is transported through the air supply hose 6 connector, and the upper section pipe 1 and the lower section pipe 2 maintain a relatively stable position relationship under the support of the fixed bracket 4. When some factors occur during the operation of the air-conditioning unit and cause the upper section pipe 1 to be subjected to an upward force, the upper section pipe 1 will move upward along the movable rod 301 and compress the reset spring 3 at the same time. The force sensor 5 detects the upward force applied to the upper section pipe 1 in real time and transmits the signal to the control system, thereby alarming and reminding the staff not to continue moving the boarding bridge. When the external force disappears, the elastic force of the reset spring 3 will cause the upper section pipe 1 to move downward and return to its initial position. If the upper section pipe 1 is subjected to a downward force, the process is similar. The upper section pipe 1 moves downward to compress the reset spring 3. The force sensor 5 detects the downward force and transmits a signal. After the external force disappears, the reset spring 3 resets the upper section pipe 1 upward. During the entire process, the force sensor 5 continuously monitors the force situation to ensure that the joint operates within a safe force range.

[0030] See also Figure 1 and Figure 2 The ends of the upper tube 1 and the lower tube 2 that are connected to each other are protruded outward to form a disc, and a through hole is opened on the disc, the movable rod 301 is inserted into the through hole, and the return spring 3 is pressed between the two discs.

[0031] like Figure 1 and Figure 2As shown, the disc increases the contact area of the joint between the upper tube section 1 and the lower tube section 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 section 1 and the lower tube section 2 to be better positioned and connected when docking, ensuring the structural stability of the entire joint.

[0032] The through hole provides a precise installation position for the movable rod 301, so that the movable rod 301 can be accurately inserted into the upper section tube 1 and the lower section tube 2, realizing the up and down movement of the upper section tube 1 on the movable rod 301. The cooperation between the movable rod 301 and the through hole plays a guiding and limiting role, ensuring that the upper section tube 1 can only move up and down in the vertical direction and will not deviate in the horizontal direction.

[0033] When the upper tube section 1 is displaced up and down by external force, the return spring 3 provides elastic force to restore the upper tube section 1 to its initial position. When the upper tube section 1 moves upward, the return spring 3 is compressed, generating a downward elastic force. When the upper tube section 1 moves downward, the return spring 3 is stretched, generating an upward elastic force.

[0034] Please continue reading Figure 1 and Figure 2 The fixed bracket 4 has an annular structure, and a plurality of mounting grooves are provided on the top of the fixed bracket 4 along its own center ring. The force sensor 5 is installed inside the mounting groove. The plurality of force sensors 5 are distributed along the ring and against the upper tube 1.

[0035] like Figure 1 and Figure 2 As shown, the force sensor 5 can detect the 360-degree axial and radial force conditions of the upper tube section 1 and transmit the electrical signal to the centralized control unit.

[0036] The annular structure of the fixing bracket 4 can be tightly and evenly mounted on the outside of the lower pipe section 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 pipe section 2 is firm and will not be easily loosened or displaced due to external forces.

[0037] The mounting groove provides a precise installation 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 grooves allows the force sensor 5 to be installed according to a specific layout to meet the needs of force detection at different positions of the upper section pipe 1.

[0038] Installing the force sensor 5 in the installation groove can protect the force sensor 5 and prevent it from being hit or damaged during installation and use. At the same time, the installation groove can provide certain positioning and fixing functions for the force sensor 5, ensuring that the connection between the force sensor 5 and the fixing bracket 4 is tight and the signal transmission is stable.

[0039] Multiple force sensors 5 distributed along a ring can simultaneously detect the force applied to the upper section pipe 1 from different directions, and can comprehensively and accurately obtain the force conditions of the upper section pipe 1 at various positions. The force sensor 5 is pressed against the upper section pipe 1, so that the upper section pipe 1 can directly transmit the force to the force sensor 5 when subjected to force, thereby realizing real-time detection of force.

[0040] See also Figure 1-Figure 3 The top of the upper tube section 1 protrudes outward to form a frustum, on which a plurality of openings 101 are provided. A pressure sensor 9 is installed at the top of the frustum at the position of the opening 101. A reset spring 10 that can move up and down is installed on the pressure sensor 9, and the bottom end of the reset spring 10 moves up and down in the opening 101.

[0041] like Figure 1-Figure 3 As shown, the frustum structure increases the surface area of the top of the upper tube section 1, providing more sufficient space for subsequent operations such as installing the pressure sensor 9 and opening the opening 101. At the same time, the shape of the frustum has a certain guiding and dispersing force function. When an external force acts on the top of the upper tube section 1, the frustum can make the force distribution more uniform and reduce local stress concentration.

[0042] The opening 101 provides an installation location 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.

[0043] The pressure sensor 9 is a key component for detecting pressure changes. It is installed at the opening 101 to detect the connection status between the air supply hose 6 connector and the aircraft, and transmit the electrical signal to the centralized control unit to monitor the pressure on the top of the upper section pipe 1 in real time.

[0044] The reset spring 10 plays the role of transmitting pressure and resetting. When pressure acts on 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 that the pressure change can be accurately detected next time. A spring is arranged between the pressure sensor 9 and the reset spring 10.

[0045] The bottom end of the reset spring 10 moves up and down in the opening 101. When pressure acts on 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 to prevent obstruction.

[0046] Please continue reading Figure 1-Figure 3An air supply hose 6 is provided on the outside of the upper section pipe 1 and the lower section pipe 2. The air supply hose 6 includes a hose and a folding tube. The top part of the hose is wrapped around the outside of the lower section pipe 2, the folding tube is wrapped around the outside of the lower section pipe 2, and the top part of the folding tube is wrapped around the outside of the upper section pipe 1.

[0047] like Figure 1-Figure 3 As shown, the air supply hose 6 serves to connect and transport air, transporting the cold air or hot air generated by the air-conditioning unit from the unit to the area that needs 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.

[0048] The combined design of the hose and the folding tube gives full play to the advantages of two pipes with different structures. The hose usually has good flexibility and sealing, which can ensure the smooth transmission of air. The folding tube has better elasticity and compensation ability, which can adapt to the movement between the upper section tube 1 and the lower section tube 2.

[0049] The top portion of the hose is wrapped around the exterior of the lower tube section 2. This wrapping method securely connects the hose and lower tube section 2 together, preventing air leakage at the connection. The top portion of the folding tube is wrapped around the exterior of the upper tube section 1. This wrapping method tightly connects the folding tube and the upper tube section 1, forming a complete air supply channel. At the same time, it also limits the range of motion of the upper tube section 1 to a certain extent, ensuring that the upper tube section 1 can stably move up and down without excessive deviation under the action of the movable rod 301 and the return spring 3. During the upward and downward movement of the upper tube section 1, the upper tube section 1 drives the folding tube to expand and contract, which does not affect the force sensor 5 detecting the active pressure of the upper tube section 1.

[0050] Please continue reading Figure 1-Figure 3 The outer sleeve of the hose is provided with a lower tightening buckle 8, and the lower tightening buckle 8 is located at the position of the lower section tube 2. The outer sleeve of the folding tube is provided with an upper tightening buckle 7, and the upper tightening buckle 7 is located at the position of the upper section tube 1. The upper tightening buckle 7 includes two semicircular tightening buckles, and the two tightening buckles are fixed with fixed blocks at the positions where they are connected to each other. The two fixed blocks are connected by bolts.

[0051] like Figure 1-Figure 3 As shown, the lower tightening buckle 8 is mainly used to tighten and fix the hose that is sleeved on the outside of the lower section pipe 2. It can provide sufficient pressure to make the hose fit tightly on the lower section pipe 2, preventing the hose and the lower section pipe 2 from loosening, shifting or air leakage.

[0052] The function of the upper tightening buckle 7 is similar to that of the lower tightening buckle 8, which is to tighten and fix the folding tube wrapped around the outside of the upper section tube 1. Since the folding tube has certain elasticity and flexibility, the upper tightening buckle 7 can ensure that the folding tube and the upper section tube 1 maintain a tight connection, preventing the folding tube from sliding or deforming during use, while not affecting the upper section tube 1's ability to move up and down.

[0053] The upper tightening buckle 7 and the lower tightening buckle 8 have the same structure, and both adopt the structural 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 respectively put on the folding tube and the hose, and then the fixing blocks are connected by bolts to tighten and fix the folding tube and the hose. During disassembly, only the bolts need to be loosened to separate the two semi-circular ring tightening buckles, which is convenient for maintenance and inspection of the air supply hose 6 joint.

[0054] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An air supply hose connector for an air conditioner unit with force detection, characterized in that: include: An upper tube section (1) and a lower tube section (2) connected to each other, wherein the upper tube section (1) is located above the lower tube section (2); A fixed bracket (4), the fixed bracket (4) is sleeved on the outside of the lower tube (2), the inner ring inner wall of the fixed bracket (4) is provided with a plurality of movable holes, a movable rod (301) is inserted into the inside of the movable hole, and the movable rod (301) is inserted into the upper tube (1), the upper tube (1) moves up and down on the movable rod (301), the movable rod (301) is sleeved on the outside of the return spring (3), and the top and bottom of the return spring (3) are respectively connected to the fixed bracket (4) and the upper tube (1); and A force sensor (5) is mounted on the fixed bracket (4), and an output end of the force sensor (5) abuts against the upper tube (1).

2. The air supply hose connector for an air conditioner unit with force detection according to claim 1, characterized in that: The ends of the upper tube section (1) and the lower tube section (2) that are connected to each other are both protruded outward to form a disc, and a through hole is provided on the disc. The movable rod (301) is inserted into the through hole, and the return spring (3) is pressed between the two discs.

3. The air supply hose connector for an air conditioner unit with force detection according to claim 1, characterized in that: The fixing bracket (4) is annular in structure, and a plurality of mounting grooves are provided on the top of the fixing bracket (4) along its own central ring shape. The force sensors (5) are installed inside the mounting grooves. The plurality of force sensors (5) are distributed along the ring shape and abut against the upper tube section (1).

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

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

6. The air supply hose connector for an air conditioner unit with force detection according to claim 1, characterized in that: An air supply hose (6) is sleeved on the exterior of the upper tube section (1) and the lower tube section (2), and the air supply hose (6) comprises a hose and a folding tube.

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

8. The air supply hose connector for an air conditioner unit with force detection according to claim 7, characterized in that: The outer sleeve of the hose is provided with a lower tightening buckle (8), and the lower tightening buckle (8) is located at the position of the lower section pipe (2).

9. The air supply hose connector for an air conditioner unit with force detection according to claim 7, characterized in that: An upper tightening buckle (7) is provided on the outer sleeve of the folding tube, and the upper tightening buckle (7) is located at the position of the upper section tube (1).

10. The air supply hose connector for an air conditioner unit with force detection according to claim 9, characterized in that: The upper tightening buckle (7) comprises two semicircular tightening buckles, and a fixing block is fixed at the position where the two tightening buckles are butted against each other, and the two fixing blocks are connected by bolts.

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