Detection device of central air-conditioning system

Abstract

The invention discloses a detection device of a central air-conditioning system in the technical field of central air-conditioning detection, and the detection device comprises a height adjusting mechanism, the top of the height adjusting mechanism is provided with a box body, the right side of the height adjusting mechanism is provided with a locking mechanism, one end, far away from the height adjusting mechanism, of the box body is provided with a shell, and a connecting pipe is connected between the shell and the box body. A detection mechanism is arranged between the connecting pipe and the box body, an air inlet is formed in the front face of the shell, a clamping mechanism is arranged on the front side of the shell, a transmission mechanism is arranged on the right side of the shell, and the left end of the transmission mechanism is connected with the right end of the clamping mechanism. Through cooperative arrangement of the shell, the transmission mechanism, the air inlet and the clamping mechanism, the air inlet covers the air outlet of the central air conditioner, the clamping mechanism is driven to work through the transmission mechanism until the two groups of clamping plates are clamped at the air outlet of the central air conditioner, and then the shell is fixedly mounted conveniently, so that an operator does not need to hold the device by hand for detection, and the detection efficiency is improved. And the use is more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of central air-conditioning detection, and in particular to a detection device for a central air-conditioning system. Background Art

[0002] The central air conditioning system consists of one or more cold and heat source systems and multiple air conditioning systems. This system is different from traditional refrigerant air conditioning. It centrally processes air to meet comfort requirements and uses the principle of liquid vaporization refrigeration to provide the required cooling capacity for the air conditioning system to offset the heat load of the indoor environment. The heating system provides the required heat for the air conditioning system to offset the cooling and heating loads of the indoor environment. Currently, after leaving the factory, the central air conditioner needs to be tested for energy efficiency and then the power consumption of the air conditioner is detected.

[0003] Patent announcement number CN213091031U discloses a central air-conditioning outlet detection assembly, including: a mounting shell, a detection assembly arranged in the mounting shell, a clamping assembly for clamping the mounting shell, and a hand-held telescopic rod arranged below the clamping assembly, the mounting shell is provided with an air inlet connected to the inside of the mounting shell; the detection assembly includes a wind speed sensor fixed in the mounting shell for detecting wind speed, a temperature sensor fixed in the mounting shell for detecting central air-conditioning temperature, a flow sensor fixed in the mounting shell for detecting flow, and a controller fixed on the hand-held telescopic rod, the controller is wirelessly connected to the wind speed sensor, the temperature sensor, and the flow sensor. The central air-conditioning outlet detection assembly of the present invention is small in size and can be handheld by the operator for detection, but the above device requires the operator to hold the device for detection during detection, which is time-consuming and labor-intensive, inconvenient to operate, and also reduces the detection efficiency of the device. Summary of the invention

[0004] In order to improve the problem that the above-mentioned device requires an operator to hold the device in hand for detection, which is time-consuming and labor-intensive, inconvenient to operate, and also reduces the detection efficiency of the device, the present invention provides a detection device for a central air-conditioning system.

[0005] The present invention provides a detection device for a central air conditioning system, which adopts the following technical solution: A detection device for a central air-conditioning system comprises a height adjustment mechanism, a fixing mechanism is arranged at the bottom of the height adjustment mechanism, a box is installed at the top of the height adjustment mechanism, a locking mechanism is arranged on the right side of the height adjustment mechanism, a shell is installed at the end of the box away from the height adjustment mechanism, a connecting pipe is connected between the shell and the box, a detection mechanism is arranged between the connecting pipe and the box, an air inlet is opened on the front side of the shell, a clamping mechanism is arranged on the front side of the shell, a transmission mechanism is arranged on the right side of the shell, and the left end of the transmission mechanism is connected to the right end of the clamping mechanism.

[0006] By adopting the above technical solution, the device is installed at a suitable position through the fixing mechanism, and the height of the shell and the box is adjusted through the height adjustment mechanism, so that 10) covers the central air-conditioning outlet, and the clamping mechanism is driven to work through the transmission mechanism, and then the shell can be clamped at the central air-conditioning outlet through the clamping mechanism, thereby eliminating the need for the operator to hold the device for detection, and the use is faster and more convenient.

[0007] Optionally, the height adjustment mechanism includes a hollow seat, a movable column is installed inside the hollow seat, and the top of the movable column extends out of the hollow seat and is fixedly connected to the bottom of the box.

[0008] By adopting the above technical solution, the position of the movable column inside the hollow seat is adjusted, thereby driving the upper shell and box to move up and down.

[0009] Optionally, the locking mechanism includes two groups of mounting seats, both groups of mounting seats are installed at the upper end of the right side of the hollow seat, and movable blocks are installed at one end of the two groups of mounting seats close to the hollow seat, and a reset spring is connected between the movable block and the inner wall of the mounting seat, and a mounting plate is connected between the two groups of movable blocks, a pull rod is connected to the right side of the mounting plate, and a limiting rod is connected to the left side of the mounting plate, and a plurality of limiting grooves that are plugged into and cooperate with the limiting rod are evenly spaced on the right side of the movable column.

[0010] By adopting the above technical solution, when it is necessary to release the fixing effect of the limit rod on the movable column, pull the pull rod to the right, the pull rod drives the mounting plate to move to the right, the mounting plate drives the movable block to move and compresses the reset spring, and the mounting plate moves while driving the limit rod to move until the limit rod is separated from the limit slot.

[0011] Optionally, the fixing mechanism includes a positioning seat, which is installed at the bottom of the hollow seat, a one-way threaded rod is screwed on the right side of the positioning seat, a rotating wheel is installed on the side of the one-way threaded rod away from the center of the positioning seat, and a movable plate is connected to the end of the one-way threaded rod away from the rotating wheel.

[0012] By adopting the above technical solution, the positioning seat is clamped in the appropriate position, and the staff rotates the wheel, which drives the one-way threaded rod to rotate, and the one-way threaded rod drives the movable plate to move to the left, so that the positioning seat can be clamped at the connection, which is convenient for fixing and installing the entire device.

[0013] Optionally, the left side of the movable plate and the left side wall of the inner cavity of the positioning seat are both connected with rubber pads.

[0014] By adopting the above technical solution, the friction between the positioning seat and the movable plate and the connection is increased by the rubber pad.

[0015] Optionally, a sliding mechanism is provided between the movable plate and the positioning seat, the sliding mechanism includes a slider, the slider is installed on the top of the movable plate, a sliding groove is provided on the inner top wall of the positioning seat, and the sliding groove is slidably connected to the slider.

[0016] By adopting the above technical solution, when the movable plate moves, it can drive the slider to slide inside the slide groove, and then the movable plate can be limited, so that the movable plate always moves horizontally.

[0017] Optionally, the clamping mechanism includes two groups of fixed plates, which are respectively installed at the left and right ends of the front side of the shell, and the upper and lower ends between the two groups of fixed plates are symmetrically connected with bidirectional threaded rods, and the two ends of the outer sides of the two groups of bidirectional threaded rods are screwed with movable sleeves, and a clamping plate is installed between the two groups of movable sleeves.

[0018] By adopting the above technical solution, when the bidirectional threaded rod rotates, it drives the two sets of movable sleeves to move and approach each other. The movement of the movable sleeves drives the two sets of clamping plates to move and approach each other until the two sets of clamping plates are clamped on both sides of the air outlet, so that the shell can be fixedly installed at the air outlet of the central air conditioner.

[0019] Optionally, the transmission mechanism includes a servo motor, which is installed on the right side of the shell, and a first transmission rod is installed at the power output end of the servo motor, and a first transmission gear is installed at the end of the first transmission rod away from the servo motor, and the top and bottom of the first transmission gear are meshed and connected with a second transmission gear, and a second transmission shaft is connected between the two groups of the second transmission gears and the two groups of bidirectional threaded rods.

[0020] By adopting the above technical solution, when the servo motor is working, the first transmission rod drives the first transmission gear to rotate, and the rotation of the first transmission gear drives the two sets of second transmission gears to rotate, thereby driving the two sets of bidirectional threaded rods to rotate simultaneously.

[0021] Optionally, the bottom of the shell and the top of the box are both connected with sealing rings, and two sets of sealing rings are sleeved on the outside of the connecting pipe.

[0022] By adopting the above technical solution, the sealing performance when the connecting pipe is connected to the shell and the box body is improved.

[0023] Optionally, the detection mechanism includes an air volume flow meter, which is installed inside the connecting pipe, and a temperature sensor and a wireless transmitter are respectively installed on the left and right ends of the top wall of the box body, a controller is installed on the top of the box body, and a timer is installed on the left side of the box body, and the output ends of the air volume flow meter, temperature sensor and timer are electrically connected to the input end of the controller, and the output end of the controller is electrically connected to the input end of the wireless transmitter.

[0024] By adopting the above technical solution, the air volume of the air conditioner can be detected by the air volume flow meter, and the cooling air and heating air generated by the air conditioner are transported to the inside of the box through the connecting pipe, and the temperature is detected by the temperature sensor. The timer is used to calculate the time it takes for the cooling and heating temperature inside the box to reach a certain level, and finally it is transmitted to the remote terminal through the wireless transmitter, so as to calculate the energy efficiency and performance of the air conditioner and improve the efficiency of detection.

[0025] In summary, the present invention includes at least one of the following beneficial effects: Through the coordinated arrangement of the shell, transmission mechanism, air inlet and clamping mechanism, the air inlet is covered at the central air-conditioning outlet, and the clamping mechanism is driven to work by the transmission mechanism, so that the distance between the two sets of clamping plates can be adjusted until the two sets of clamping plates are clamped at the central air-conditioning outlet, thereby facilitating the fixed installation of the shell, thereby eliminating the need for operators to hold handheld devices for detection, and making it more convenient to use.

[0026] The air volume flow meter can detect the air volume of the air conditioner, and the cooling and heating air generated by the air conditioner can be transported to the inside of the box through the connecting pipe. The temperature is detected by the temperature sensor. The timer is used to calculate the time it takes for the cooling and heating temperature inside the box to reach a certain level, and finally it is transmitted to the remote terminal through the wireless transmitter, which calculates the energy efficiency and performance of the air conditioner and improves the efficiency of detection.

[0027] Through the coordinated arrangement of the positioning seat, the movable plate, the one-way threaded rod and the rotating wheel, the positioning seat is engaged in a suitable position, and the rotating wheel is rotated. The rotating wheel drives the one-way threaded rod to rotate, thereby adjusting the lateral position of the movable plate, making it convenient to fix and install the device, thereby improving the stability of the device during detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0029] Figure 1 It is a cross-sectional structural schematic diagram of the present invention; Figure 2 It is a front view structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the top view structure of the present invention; Figure 4 For the present invention Figure 1 Enlarged structural diagram at A in the middle.

[0030] In the figure: 1, shell; 2, connecting pipe; 3, detection mechanism; 301, air volume flow meter; 302, wireless transmitter; 303, controller; 304, temperature sensor; 305, timer; 4, box; 5, height adjustment mechanism; 501, movable column; 502, hollow seat; 6, fixing mechanism; 601, positioning seat; 602, movable plate; 603, one-way threaded rod; 604, rotating wheel; 7, sliding mechanism; 701, slide groove; 702, slider; 8, sealing ring; 9, transmission mechanism; 901, the first A transmission gear; 902, a first transmission rod; 903, a servo motor; 904, a second transmission gear; 905, a second transmission shaft; 10, an air inlet; 11, a rubber pad; 12, a locking mechanism; 1201, a limiting rod; 1202, a limiting groove; 1203, a mounting seat; 1204, a movable block; 1205, a reset spring; 1206, a mounting plate; 1207, a pull rod; 13, a clamping mechanism; 1301, a fixing plate; 1302, a clamping plate; 1303, a bidirectional threaded rod; 1304, a movable sleeve. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 The present invention is described in further detail.

[0032] Please refer to the attached figure in the instruction manual Figure 1 and Figure 2 , an embodiment provided by the present invention: a detection device for a central air conditioning system, comprising a height adjustment mechanism 5, a fixing mechanism 6 is arranged at the bottom of the height adjustment mechanism 5, the fixing mechanism 6 comprises a positioning seat 601, the positioning seat 601 is installed at the bottom of the hollow seat 502, a one-way threaded rod 603 is screwed on the right side of the positioning seat 601, a rotating wheel 604 is installed on the side of the one-way threaded rod 603 away from the center of the positioning seat 601, and a movable plate 602 is rotatably connected to the end of the one-way threaded rod 603 away from the rotating wheel 604. The positioning seat 601 is clamped at a suitable position, and the staff rotates the rotating wheel 604, and the rotation of the rotating wheel 604 drives the one-way threaded rod 603 to rotate, and the rotation of the one-way threaded rod 603 drives the movable plate 602 to move to the left, so that the positioning seat 601 can be clamped at the connection, which is convenient for fixing and installing the entire device.

[0033] Please refer to the attached figure in the instruction manual Figure 1 and Figure 2The left side of the movable plate 602 and the left side wall of the inner cavity of the positioning seat 601 are fixedly connected with a rubber pad 11. The friction between the positioning seat 601 and the movable plate 602 and the connection is increased by the rubber pad 11. A sliding mechanism 7 is arranged between the movable plate 602 and the positioning seat 601, and the sliding mechanism 7 includes a slider 702, which is fixedly mounted on the top of the movable plate 602, and a slide groove 701 is provided on the inner top wall of the positioning seat 601, and the slide groove 701 and the slider 702 are slidably connected. When the movable plate 602 moves, it can drive the slider 702 to slide inside the slide groove 701, and then the movable plate 602 can be limited, so that the movable plate 602 always moves horizontally.

[0034] Please refer to the attached figure in the instruction manual Figure 1 and Figure 2 The top of the height adjustment mechanism 5 is equipped with a box body 4, the right side of the height adjustment mechanism 5 is provided with a locking mechanism 12, the end of the box body 4 away from the height adjustment mechanism 5 is equipped with a shell 1, the height adjustment mechanism 5 includes a hollow seat 502, the interior of the hollow seat 502 is slidably equipped with a movable column 501, the top of the movable column 501 extends out of the hollow seat 502 and is fixedly connected to the bottom of the box body 4. By adjusting the position of the movable column 501 inside the hollow seat 502, the upper shell 1 and the box body 4 can be driven to rise and fall.

[0035] Please refer to the attached figure in the instruction manual Figure 2 and Figure 4 The locking mechanism 12 includes two groups of mounting seats 1203, both of which are mounted on the upper end of the right side of the hollow seat 502, and movable blocks 1204 are installed at one end of the two groups of mounting seats 1203 close to the hollow seat 502, and a return spring 1205 is connected between the movable block 1204 and the inner wall of the mounting seat 1203, and a mounting plate 1206 is connected between the two groups of movable blocks 1204, a pull rod 1207 is connected to the right side of the mounting plate 1206, and a limiting rod 1201 is connected to the left side of the mounting plate 1206, and a plurality of limiting grooves 1202 that are plugged into and matched with the limiting rod 1201 are evenly spaced on the right side of the movable column 501. When it is necessary to release the fixing effect of the limit rod 1201 on the movable column 501, pull the pull rod 1207 to the right, and the pull rod 1207 drives the mounting plate 1206 to move to the right. The mounting plate 1206 drives the movable block 1204 to move and compresses the return spring 1205. The mounting plate 1206 moves and drives the limit rod 1201 to move at the same time until the limit rod 1201 is separated from the limit slot 1202.

[0036] Please refer to the attached figure in the instruction manual Figure 1 and Figure 2The shell 1 and the box 4 are fixedly connected with a connecting pipe 2, the bottom of the shell 1 and the top of the box 4 are connected with sealing rings 8, and the two sets of sealing rings 8 are sleeved on the outside of the connecting pipe 2. Thereby, the sealing performance of the connecting pipe 2 when connected with the shell 1 and the box 4 is increased.

[0037] Please refer to the attached figure in the instruction manual Figure 1 and Figure 2 , a detection mechanism 3 is provided between the connecting pipe 2 and the box 4, and the detection mechanism 3 includes an air volume flow meter 301, which is installed inside the connecting pipe 2, and a temperature sensor 304 and a wireless transmitter 302 are respectively installed at the left and right ends of the top wall of the box 4, a controller 303 is installed on the top of the box 4, and a timer 305 is installed on the left side of the box 4. The output ends of the air volume flow meter 301, the temperature sensor 304 and the timer 305 are electrically connected to the input end of the controller 303, and the output end of the controller 303 is electrically connected to the input end of the wireless transmitter 302. The air volume of the air conditioner can be detected by the air volume flow meter 301, and the cooling air and heating air generated by the air conditioner are transported to the inside of the box 4 through the connecting pipe 2, and the temperature is detected by the temperature sensor 304. The timer 305 is used to calculate the time consumed when the cooling and heating temperature inside the box 4 reaches a certain value, and finally transmitted to the remote terminal through the wireless transmitter 302, so as to calculate the energy efficiency and performance of the air conditioner, thereby improving the efficiency of detection.

[0038] Please refer to the attached figure in the instruction manual Figure 2 and Figure 3 The front of the housing 1 is provided with an air inlet 10, and the front side of the housing 1 is provided with a clamping mechanism 13, which includes two sets of fixing plates 1301, which are respectively installed at the left and right ends of the front side of the housing 1, and the upper and lower ends between the two sets of fixing plates 1301 are symmetrically rotatably connected with a bidirectional threaded rod 1303, and both ends of the outer sides of the two sets of bidirectional threaded rods 1303 are screwed with movable sleeves 1304, and a clamping plate 1302 is fixedly installed between the two sets of movable sleeves 1304. When the bidirectional threaded rod 1303 rotates, the two sets of movable sleeves 1304 are driven to move and approach each other, and the movement of the movable sleeves 1304 drives the two sets of clamping plates 1302 to move and approach each other, until the two sets of clamping plates 1302 are clamped on both sides of the air outlet, so that the housing 1 can be fixedly installed at the air outlet of the central air conditioner.

[0039] Please refer to the attached figure in the instruction manual Figure 2 and Figure 3A transmission mechanism 9 is provided on the right side of the housing 1, and the left end of the transmission mechanism 9 is connected to the right end of the clamping mechanism 13. The transmission mechanism 9 includes a servo motor 903, which is installed on the right side of the housing 1. A first transmission rod 902 is installed at the power output end of the servo motor 903, and a first transmission gear 901 is installed at one end of the first transmission rod 902 away from the servo motor 903. The top and bottom of the first transmission gear 901 are both meshed and connected with a second transmission gear 904, and a second transmission shaft 905 is connected between the two groups of second transmission gears 904 and the two groups of bidirectional threaded rods 1303. When the servo motor 903 is working, the first transmission gear 901 is driven to rotate through the first transmission rod 902, and the rotation of the first transmission gear 901 drives the two groups of second transmission gears 904 to rotate, and then the two groups of bidirectional threaded rods 1303 can be driven to rotate simultaneously.

[0040] Working principle: When in use, first engage the positioning seat 601 in a suitable position, and then the operator rotates the rotating wheel 604, and the rotation of the rotating wheel 604 drives the one-way threaded rod 603 to rotate. Under the sliding cooperation of the sliding groove 701 and the slider 702, the one-way threaded rod 603 rotates and drives the movable plate 602 to move to the left, thereby being able to clamp the positioning seat 601 at the connection.

[0041] Then pull rod 1207 to the right, pull rod 1207 drives mounting plate 1206 to move to the right, mounting plate 1206 drives movable block 1204 to move and compresses reset spring 1205, and mounting plate 1206 drives limit rod 1201 to move while moving, until limit rod 1201 is separated from limit slot 1202, and the fixing effect of limit rod 1201 on movable column 501 is released. At this time, pull up movable column 501, movable column 501 drives shell 1 and box body 4 to move upward, and when box body 4 covers the air outlet of central air conditioner, release pull rod 1207 again, and under the elastic force of reset spring 1205, mounting plate 1206 is reset and drives limit rod 1201 to be inserted into limit slot 1202 again, so that the position of movable column 501 can be fixed.

[0042] At the same time, the servo motor 903 is turned on, and the servo motor 903 drives the first transmission gear 901 to rotate through the first transmission rod 902. The rotation of the first transmission gear 901 drives the two sets of second transmission gears 904 to rotate. The rotation of the second transmission gear 904 drives the second transmission shaft 905 to rotate, thereby driving the two sets of two-way threaded rods 1303 to rotate synchronously. The rotation of the two-way threaded rod 1303 drives the movable sleeve 1304 to move. The movement of the movable sleeve 1304 drives the two sets of clamping plates 1302 to move and approach each other until the two sets of clamping plates 1302 abut against the air outlet, so that the shell 1 is fixedly installed at the air outlet.

[0043] At this time, the wind at the air outlet of the central air conditioner enters the interior of the shell 1 through the air inlet 10, and the wind inside the shell 1 passes through the interior of the connecting pipe 2. When the wind passes through the air volume flowmeter 301, the air volume of the air conditioner can be detected by the air volume flowmeter 301, and the cooling air and heating air generated by the air conditioner are transported to the interior of the box 4 through the connecting pipe 2, and the temperature is detected by the temperature sensor 304. The timer 305 is used to calculate the time it takes for the cooling and heating temperatures inside the box 4 to reach a certain level, and finally it is transmitted to the remote terminal through the wireless transmitter 302, so as to calculate the energy efficiency and performance of the air conditioner and improve the efficiency of detection.

[0044] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A detection device for a central air conditioning system, comprising a height adjustment mechanism (5), characterized in that: A fixing mechanism (6) is arranged at the bottom of the height adjustment mechanism (5), a box body (4) is installed at the top of the height adjustment mechanism (5), a locking mechanism (12) is arranged on the right side of the height adjustment mechanism (5), a shell (1) is installed at one end of the box body (4) away from the height adjustment mechanism (5), a connecting pipe (2) is connected between the shell body (1) and the box body (4), a detection mechanism (3) is arranged between the connecting pipe (2) and the box body (4), an air inlet (10) is opened on the front side of the shell body (1), a clamping mechanism (13) is arranged on the front side of the shell body (1), a transmission mechanism (9) is arranged on the right side of the shell body (1), and the left end of the transmission mechanism (9) is connected to the right end of the clamping mechanism (13).

2. A detection device for a central air conditioning system according to claim 1, characterized in that: The height adjustment mechanism (5) comprises a hollow seat (502), a movable column (501) is installed inside the hollow seat (502), and the top of the movable column (501) extends out of the hollow seat (502) and is fixedly connected to the bottom of the box body (4).

3. A detection device for a central air conditioning system according to claim 2, characterized in that: The locking mechanism (12) comprises two groups of mounting seats (1203), both groups of mounting seats (1203) are mounted on the upper end of the right side of the hollow seat (502), and movable blocks (1204) are mounted on one end of the two groups of mounting seats (1203) close to the hollow seat (502), and a return spring (1205) is connected between the movable block (1204) and the inner wall of the mounting seat (1203), and a mounting plate (1206) is connected between the two groups of movable blocks (1204), and a pull rod (1207) is connected to the right side of the mounting plate (1206), and a limiting rod (1201) is connected to the left side of the mounting plate (1206), and a plurality of limiting grooves (1202) that are plugged into and matched with the limiting rod (1201) are evenly spaced on the right side of the movable column (501).

4. A detection device for a central air conditioning system according to claim 1, characterized in that: The fixing mechanism (6) comprises a positioning seat (601), wherein the positioning seat (601) is mounted on the bottom of the hollow seat (502), a one-way threaded rod (603) is screwed on the right side of the positioning seat (601), a rotating wheel (604) is mounted on the side of the one-way threaded rod (603) away from the center of the positioning seat (601), and a movable plate (602) is connected to the end of the one-way threaded rod (603) away from the rotating wheel (604).

5. A detection device for a central air conditioning system according to claim 4, characterized in that: The left side of the movable plate (602) and the left side wall of the inner cavity of the positioning seat (601) are both connected with a rubber pad (11).

6. A detection device for a central air conditioning system according to claim 4, characterized in that: A sliding mechanism (7) is provided between the movable plate (602) and the positioning seat (601), the sliding mechanism (7) comprising a sliding block (702), the sliding block (702) being mounted on the top of the movable plate (602), a sliding groove (701) being provided on the inner top wall of the positioning seat (601), and the sliding groove (701) and the sliding block (702) being slidably connected.

7. A detection device for a central air conditioning system according to claim 1, characterized in that: The clamping mechanism (13) comprises two groups of fixing plates (1301), the two groups of fixing plates (1301) being respectively mounted on the left and right ends of the front side of the housing (1), the upper and lower ends between the two groups of fixing plates (1301) being symmetrically connected with bidirectional threaded rods (1303), the two ends of the outer sides of the two groups of bidirectional threaded rods (1303) being both screwed with movable sleeves (1304), and a clamping plate (1302) being mounted between the two groups of movable sleeves (1304).

8. A detection device for a central air conditioning system according to claim 7, characterized in that: The transmission mechanism (9) comprises a servo motor (903), wherein the servo motor (903) is mounted on the right side of the housing (1); a first transmission rod (902) is mounted on the power output end of the servo motor (903); a first transmission gear (901) is mounted on the end of the first transmission rod (902) away from the servo motor (903); the top and bottom of the first transmission gear (901) are meshedly connected with second transmission gears (904); and second transmission shafts (905) are connected between two groups of the second transmission gears (904) and two groups of bidirectional threaded rods (1303).

9. A detection device for a central air conditioning system according to claim 1, characterized in that: The bottom of the shell (1) and the top of the box (4) are both connected with sealing rings (8), and the two sets of sealing rings (8) are sleeved on the outside of the connecting pipe (2).

10. A detection device for a central air conditioning system according to claim 1, characterized in that: The detection mechanism (3) comprises an air volume flow meter (301), the air volume flow meter (301) being installed inside the connecting pipe (2), a temperature sensor (304) and a wireless transmitter (302) being installed at the left and right ends of the inner top wall of the box (4), a controller (303) being installed at the top of the box (4), and a timer (305) being installed at the left side of the box (4), the output ends of the air volume flow meter (301), the temperature sensor (304) and the timer (305) being electrically connected to the input end of the controller (303), and the output end of the controller (303) being electrically connected to the input end of the wireless transmitter (302).

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