Energy-saving building ventilating duct air volume control device based on BIM (Building Information Modeling)

Abstract

The invention relates to the technical field of ventilation pipeline air volume control, in particular to an energy-saving building ventilation pipeline air volume control device based on BIM. The energy-saving building ventilation pipeline air volume control device comprises a ventilation pipeline body, and a baffle for shielding the air volume is arranged in the ventilation pipeline body; a protection plate for protecting the ventilation pipeline body is fixed to one end of the ventilation pipeline body, an adjusting device for controlling the air volume is arranged in the ventilation pipeline body, and the ventilation pipeline body and the adjusting device are provided with fixing devices facilitating disassembly and assembly of the adjusting device. Through cooperation of structures such as the first ventilation barrel, the second ventilation barrel, the third ventilation barrel, the threaded rod and the adjusting mechanism, the first ventilation barrel, the second ventilation barrel and the third ventilation barrel are arranged in a line to control the air volume, and meanwhile foreign matter can be left in the first ventilation barrel, the second ventilation barrel and the third ventilation barrel; foreign matters are prevented from directly entering the ventilation pipeline to damage the ventilation pipeline or the air volume control device.

Description

Technical Field

[0001] The present invention relates to the technical field of ventilation duct air volume control, and in particular to an energy-saving building ventilation duct air volume control device based on BIM. Background Art

[0002] BIM's energy-saving building refers to a building that uses building information modeling technology to reduce energy consumption, reduce carbon emissions, and improve environmental quality throughout the entire life cycle of the building by optimizing building design, adopting energy-saving materials and equipment, and improving energy utilization efficiency. Ventilation ducts are one of the indispensable structures in a building. In order to facilitate people's lives, it is necessary to install air volume control devices in the ventilation ducts.

[0003] Although the existing ventilation duct air volume control device can control the air volume by changing the cross-sectional area of ​​the ventilation duct by controlling the flipping angle of multiple wind shields, when the multiple wind shields are flipped, when foreign objects pass through the vents, the foreign objects will directly enter the ventilation duct or collide with the side of the wind shield, which will not only easily damage the ventilation duct, but also the wind shield, making the air volume control device unable to adjust. Therefore, we propose an energy-saving building ventilation duct air volume control device based on BIM. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides an energy-saving building ventilation duct air volume control device based on BIM.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] An energy-saving building ventilation duct air volume control device based on BIM, comprising:

[0007] A ventilation duct body, wherein a baffle for shielding the air volume is arranged inside the ventilation duct body, and a protective plate for protecting the ventilation duct body is fixed at one end of the ventilation duct body;

[0008] The ventilation duct body is provided with an adjusting device for controlling the air volume, and the ventilation duct body and the adjusting device are provided with fixing devices for facilitating the disassembly and assembly of the adjusting device;

[0009] The regulating device comprises a first ventilator fixed on the inner wall of the protective plate, a movable second ventilator is arranged inside the first ventilator, a movable third ventilator is arranged inside the second ventilator, a plurality of first air outlets are arranged on the rear half of the first ventilator, a plurality of second air outlets are arranged on the second ventilator and the third ventilator, and an regulating mechanism is arranged between the first ventilator, the second ventilator and the third ventilator and the ventilation duct body, an end of the first ventilator away from the first air outlet is fixed to the inner wall of the protective plate, the outer wall of the second ventilator contacts the inner wall of the first ventilator, the outer wall of the third ventilator contacts the inner wall of the second ventilator, and the first ventilator is provided with a plurality of first air outlets. The diameter of the cylinder is larger than the diameter of the second ventilation cylinder, the diameter of the second ventilation cylinder is larger than the diameter of the third ventilation cylinder, the first ventilation cylinder, the second ventilation cylinder and the third ventilation cylinder are sequentially sleeved inside the ventilation duct body from small to large, and when one end of the first ventilation cylinder, the second ventilation cylinder and the third ventilation cylinder are on the same vertical level with the protection plate, the first air outlet and the second air outlet are alternately staggered, and the third ventilation cylinder moves toward the outside of the second ventilation cylinder through the third ventilation cylinder, and the second ventilation cylinder moves toward the outside of the first ventilation cylinder, so that the first ventilation cylinder, the second ventilation cylinder and the third ventilation cylinder are arranged in a row, and the air volume of the ventilation duct body is controlled through the plurality of the first air outlets and the second air outlets;

[0010] The adjusting mechanism comprises a first transmission rod, a second transmission rod and a first extension rod, one end of the first transmission rod is fixed to the top of the side of the third ventilating duct, one end of the second transmission rod is fixed to the top of the side of the second ventilating duct, one end of the first extension rod is fixed to the top of the inner wall of the ventilation duct body, and a retractable second extension rod is arranged inside the first extension rod, and a retractable third extension rod is arranged inside the second extension rod, a first connecting rod is arranged between the first transmission rod and the third extension rod, and a second connecting rod is arranged between the second transmission rod and the second extension rod, and two rings are fixed at both ends of the first connecting rod and the second connecting rod. The two rings fixed on the first connecting rod are respectively sleeved on the outer walls of the first transmission rod and the third extension rod, and the two rings fixed on the second connecting rod are respectively sleeved on the second transmission rod and the second extension rod. The first connecting rod is driven by the third extension rod to drive the first transmission rod to move, so that the first transmission rod drives the third ventilation tube to move, and the third ventilation tube moves to the outside of the second ventilation tube. At the same time, the third extension rod drives the second extension rod to move, so that the second extension rod drives the second connecting rod to drive the second transmission rod to move, and the second transmission rod drives the second ventilation tube to move, and the second ventilation tube moves to the outside of the first ventilation tube.

[0011] As a preferred technical solution of the present invention, a rotatable rotating rod is provided at one end of the third extension rod away from the second extension rod, a rotatable threaded rod is provided at the bottom of the ventilation duct body, a threaded sleeve matching the threaded rod is provided at one end of the rotating rod away from the third extension rod, a sealing sleeve is provided between the ventilation duct body and the threaded rod, and the threaded sleeve is screwed to the top of the threaded rod.

[0012] As a preferred technical solution of the present invention, a mounting block is fixed to the bottom of the baffle, a positioning rod is fixed to the bottom of the side of the third ventilator, and the mounting block is sleeved on the outside of the positioning rod.

[0013] As a preferred technical solution of the present invention, a U-shaped handle is fixed to the side of the baffle, a rotatable locking rod is provided on the side of the handle away from the baffle, and an end of the locking rod away from the handle is inserted into one of the second air outlets.

[0014] As a preferred technical solution of the present invention, the fixing device includes an insertion rod inserted into the protective plate, a rectangular groove is provided in the middle of the insertion rod, a liftable baffle rod is provided in the rectangular groove, an annular groove matching the ventilation duct body is provided on the side of the protective plate, and the bottom of the limit plate passes through the annular groove and contacts with the ventilation duct body.

[0015] As a preferred technical solution of the present invention, a limit plate is fixed in the rectangular groove, and an inclined groove matched with the limit plate is provided on the side of the pressure rod. The limit plate cooperates with the inclined groove to make the limit plate drive the inclined groove to move vertically up and down.

[0016] As a preferred technical solution of the present invention, a stop rod is fixed to one end of the insertion rod, and a threaded portion is provided at one end of the insertion rod away from the stop rod, and two nuts are screwed onto the threaded portion.

[0017] As a preferred technical solution of the present invention, a pull ball is fixed on the top of the pressure rod for people to grasp, and a buffer pad is provided at the bottom of the pressure rod, which can reduce the wear of the pressure rod and the ventilation duct body.

[0018] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0019] 1. The first ventilator, the second ventilator, the third ventilator, the threaded rod, the adjusting mechanism and other structures are coordinated to make the first ventilator, the second ventilator and the third ventilator line up in a row, and the first ventilator, the second ventilator and the third ventilator overlap each other to block or open the first air outlet and control the air volume. At the same time, foreign matter can be retained inside the first ventilator, the second ventilator and the third ventilator to prevent foreign matter from directly entering the ventilation duct and damaging the ventilation duct or the air volume control device, which not only improves the safety of the device, but also makes it easier for people to clean up foreign matter.

[0020] 2. By rotating the locking rod, the locking rod drives the sleeve to rotate around the positioning rod, so that the locking rod moves to the outside of the second air outlet, pushes it to flip downward, and the baffle drives the mounting block to rotate around the positioning rod, so that the baffle is separated from the third ventilator, thereby increasing the ventilation area, further increasing the ventilation volume, and enhancing the ventilation effect.

[0021] 3. Push the plug rod so that it passes through the protective plate and is screwed to the nut, and turn the blocking rod downward so that the bottom of the blocking rod contacts the sides of the first ventilator, the second ventilator and the third ventilator, so as to limit the first ventilator, the second ventilator and the third ventilator, thereby preventing the first ventilator, the second ventilator and the third ventilator from falling off from the ventilation duct body, causing the device to be unable to be used normally.

[0022] 4. By rotating the nut, the nut is separated from the insertion rod, the insertion rod is pushed to move, and the insertion rod drives the limit plate to move, so that the limit plate and the inclined groove cooperate to drive the pressure rod to move, so that the bottom of the pressure rod is separated from the outer wall of the ventilation duct body, and then the insertion rod is separated from the protective plate, so that the blocking rod is away from the first ventilation tube, the second ventilation tube and the third ventilation tube, so as to facilitate the disassembly and assembly of the adjustment device, and further improve the convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the regulating device of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the first ventilator of the present invention;

[0026] Figure 4 is a schematic cross-sectional structural diagram of the second ventilator of the present invention;

[0027] Figure 5 is a schematic cross-sectional structure diagram of a third ventilator of the present invention;

[0028] Figure 6 is a schematic structural diagram of a first transmission rod of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the fixing device of the present invention;

[0030] Figure 8 Schematic diagram of the cross-sectional structure of the protection plate of the present invention;

[0031] Fig. 9 It is a structural schematic diagram of the plug rod of the present invention;

[0032] Fig.10 It is a structural schematic diagram of the locking rod of the present invention;

[0033] Fig.11 For the present invention Figure 4 Schematic diagram of the local enlarged structure at point A in the middle.

[0034] Wherein: 1. ventilation duct body; 2. baffle; 3. protection plate; 4. adjustment device; 5. fixing device; 401. first ventilator; 402. second ventilator; 403. third ventilator; 404. first transmission rod; 405. second transmission rod; 406. third extension rod; 407. first extension rod; 408. second extension rod; 409. threaded rod; 410. positioning rod; 411. locking rod; 412. rotating rod; 501. insertion rod; 502. blocking rod; 503. pressure rod; 504. nut; 505. limiting plate. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

[0036] Embodiment: The present invention provides as Figure 1 The BIM-based energy-saving building ventilation duct air volume control device shown includes:

[0037] The ventilation duct body 1 has a baffle 2 disposed inside the ventilation duct body 1 for shielding the air volume, and a protection plate 3 is fixed at one end of the ventilation duct body 1 for protecting the ventilation duct body 1 .

[0038] As can be seen from the above, when the air volume of the ventilation duct of the building needs to be controlled during use, the area of ​​the air inlet of the ventilation duct body 1 is changed by opening and closing the baffle 2, thereby adjusting the air volume of the ventilation duct body 1.

[0039] refer to Figure 1-Figure 4 As shown, a regulating device 4 for controlling the air volume is provided inside the ventilation duct body 1, and a fixing device 5 for facilitating the disassembly and assembly of the regulating device 4 is provided on the ventilation duct body 1 and the regulating device 4;

[0040] The adjusting device 4 includes a first ventilating tube 401 fixed on the inner wall of the protective plate 3, a movable second ventilating tube 402 is arranged inside the first ventilating tube 401, a movable third ventilating tube 403 is arranged inside the second ventilating tube 402, a plurality of first air outlets are arranged in the rear half of the first ventilating tube 401, a plurality of second air outlets are arranged on the second ventilating tube 402 and the third ventilating tube 403, and an adjusting mechanism is arranged between the first ventilating tube 401, the second ventilating tube 402 and the third ventilating tube 403 and the ventilation duct body 1, an end of the first ventilating tube 401 away from the first air outlet is fixed to the inner wall of the protective plate 3, the outer wall of the second ventilating tube 402 is in contact with the inner wall of the first ventilating tube 401, the outer wall of the third ventilating tube 403 is in contact with the inner wall of the second ventilating tube 402, and the first ventilating tube 401 is provided with a plurality of first air outlets. The diameter of the air cylinder 401 is larger than the diameter of the second air cylinder 402, and the diameter of the second air cylinder 402 is larger than the diameter of the third air cylinder 403. The first air cylinder 401, the second air cylinder 402 and the third air cylinder 403 are sequentially sleeved in the interior of the ventilation duct body 1 from small to large, and when one end of the first air cylinder 401, the second air cylinder 402 and the third air cylinder 403 are on the same vertical level with the protection plate 3, the first air outlet and the second air outlet are alternately staggered, and the third air cylinder 403 moves toward the outside of the second air cylinder 402, and the second air cylinder 402 moves toward the outside of the first air cylinder 401, so that the first air cylinder 401, the second air cylinder 402 and the third air cylinder 403 are arranged in a row, and the air volume of the ventilation duct body 1 is controlled by a plurality of first air outlets and second air outlets;

[0041] The adjustment mechanism includes a first transmission rod 404, a second transmission rod 405 and a first extension rod 407, one end of the first transmission rod 404 is fixed to the top of the side of the third ventilation tube 403, one end of the second transmission rod 405 is fixed to the top of the side of the second ventilation tube 402, one end of the first extension rod 407 is fixed to the top of the inner wall of the ventilation duct body 1, and a retractable second extension rod 408 is arranged inside the first extension rod 407, and a retractable third extension rod 406 is arranged inside the second extension rod 408, a first connecting rod is arranged between the first transmission rod 404 and the third extension rod 406, a second connecting rod is arranged between the second transmission rod 405 and the second extension rod 408, and two rings are fixed at both ends of the first connecting rod and the second connecting rod. The two rings fixed on the first connecting rod are respectively sleeved on the outer walls of the first transmission rod 404 and the third extension rod 406, and the two rings fixed on the second connecting rod are respectively sleeved on the second transmission rod 405 and the second extension rod 408. The first connecting rod is driven by the third extension rod 406 to drive the first transmission rod 404 to move, so that the first transmission rod 404 drives the third ventilation tube 403 to move, and the third ventilation tube 403 moves to the outside of the second ventilation tube 402. At the same time, the third extension rod 406 drives the second extension rod 408 to move, so that the second extension rod 408 drives the second connecting rod to drive the second transmission rod 405 to move, so that the second transmission rod 405 drives the second ventilation tube 402 to move, and the second ventilation tube 402 moves to the outside of the first ventilation tube 401.

[0042] A rotatable rotating rod 412 is provided at one end of the third extension rod 406 away from the second extension rod 408, a rotatable threaded rod 409 is provided at the bottom of the ventilation duct body 1, and a threaded sleeve matching the threaded rod 409 is provided at one end of the rotating rod 412 away from the third extension rod 406, a sealing sleeve is provided between the ventilation duct body 1 and the threaded rod 409, and the threaded sleeve is screwed to the top of the threaded rod 409.

[0043] By adopting the above technical solution:

[0044] During use, when the air volume needs to be controlled, the threaded rod 409 is rotated, and the threaded rod 409 cooperates with the threaded sleeve, so that the threaded sleeve moves downward along the outer wall of the threaded rod 409, and the threaded sleeve drives the rotating rod 412 to move downward, so that the rotating rod 412 drives the third extension rod 406 to move, and the third extension rod 406 moves to the outside of the second extension rod 408, and the third extension rod 406 drives the first connecting rod to drive the first transmission rod 404 to move, so that the first transmission rod 404 drives the third ventilation tube 403 to move, and the third ventilation tube 403 moves to the outside of the second ventilation tube 402, and at the same time, the third extension rod 406 drives the second extension rod 408 to move, so that the second extension rod 408 drives the second connecting rod to drive the second transmission rod 405 to move, so that the second transmission rod 405 drives the second ventilation tube 402 to move, and the second ventilation tube 402 moves The outside of the first ventilator 401 is arranged in a row with the first ventilator 401, the part of the third ventilator 403 with the second air outlet is moved to the outside of the second ventilator 402, and the second ventilator 402 drives the part of the second air outlet to move to the outside of the first ventilator 401, and exhaust is carried out through multiple first air outlets and multiple second air outlets. The first ventilator 401, the second ventilator 402 and the third ventilator 403 overlap with each other to block or open the first air outlet and control the air volume. When foreign matter enters the vent, the baffle 2 blocks the foreign matter and keeps it inside the first ventilator 401, the second ventilator 402 and the third ventilator 403, so as to prevent the foreign matter from damaging the ventilation duct and facilitate people to remove the foreign matter.

[0045] Secondly, refer to Figure 1-Figure 4 As shown, a mounting block is fixed to the bottom of the baffle 2 , a positioning rod 410 is fixed to the bottom of the side of the third ventilating tube 403 , and the mounting block is sleeved on the outside of the positioning rod 410 .

[0046] A U-shaped handle is fixed to the side of the baffle 2, and a rotatable locking rod 411 is provided on the side of the handle away from the baffle 2, and an end of the locking rod 411 away from the handle is inserted into one of the second air outlets.

[0047] By adopting the above technical solution:

[0048] When in use, rotate the locking rod 411 so that the locking rod 411 drives the sleeve to rotate around the positioning rod 410, moves the locking rod 411 to the outside of the second air outlet, pushes it to flip downward, and drives the mounting block to rotate around the positioning rod 410, so that the baffle 2 is separated from the third ventilator 403, thereby increasing the ventilation area, further increasing the ventilation volume, and enhancing the ventilation effect.

[0049] Again, reference Figure 1-Figure 4As shown, the fixing device 5 includes an insertion rod 501 inserted on the protection plate 3, a rectangular groove is provided in the middle of the insertion rod 501, a liftable blocking rod 502 is provided in the rectangular groove, and an annular groove adapted to the ventilation duct body 1 is provided on the side of the protection plate 3, and the bottom of the limiting plate 505 passes through the annular groove and contacts with the ventilation duct body 1.

[0050] A stop rod 502 is fixed to one end of the insertion rod 501 , and a threaded portion is provided at one end of the insertion rod 501 away from the stop rod 502 , on which two nuts 504 are screwed.

[0051] A pull ball is fixed on the top of the pressure rod 503 for people to grasp, and a buffer pad is arranged at the bottom of the pressure rod 503, which can reduce the wear of the pressure rod 503 and the ventilation duct body 1.

[0052] By adopting the above technical solution:

[0053] When in use, push the insertion rod 501 so that the insertion rod 501 passes through the protective plate 3 and is screwed with the nut 504, and turn the blocking rod 502 downward so that the bottom of the blocking rod 502 contacts the side surfaces of the first ventilating tube 401, the second ventilating tube 402 and the third ventilating tube 403, so that the first ventilating tube 401, the second ventilating tube 402 and the third ventilating tube 403 are limited, thereby preventing the first ventilating tube 401, the second ventilating tube 402 and the third ventilating tube 403 from falling off from the ventilation duct body 1, causing the device to be unable to be used normally.

[0054] Finally, reference Figure 1-Figure 4 As shown, a limit plate 505 is fixed in the rectangular groove, and an inclined groove matched with the limit plate 505 is arranged on the side of the pressure rod 503. The limit plate 505 cooperates with the inclined groove, so that the limit plate 505 drives the inclined groove to move vertically up and down.

[0055] By adopting the above technical solution:

[0056] When in use, rotate nut 504 to separate nut 504 from plug rod 501, push plug rod 501 to move, so that plug rod 501 drives limit plate 505 to move, so that limit plate 505 cooperates with inclined groove to drive pressure rod 503 to move, so that the bottom of pressure rod 503 is separated from the outer wall of ventilation duct body 1, and then plug rod 501 is separated from protective plate 3, so that blocking rod 502 is away from first ventilation tube 401, second ventilation tube 402 and third ventilation tube 403, so as to facilitate disassembly and assembly of adjustment device 4, and further improve the convenience of the device.

[0057] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An energy-saving building ventilation duct air volume control device based on BIM, characterized in that: include: A ventilation duct body (1), wherein a baffle (2) for shielding air volume is arranged inside the ventilation duct body (1), and a protection plate (3) for protecting the ventilation duct body (1) is fixed to one end of the ventilation duct body (1); The ventilation duct body (1) is provided with an adjusting device (4) for controlling the air volume, and the ventilation duct body (1) and the adjusting device (4) are provided with a fixing device (5) for facilitating the disassembly and assembly of the adjusting device (4); The regulating device (4) comprises a first ventilating cylinder (401) fixed to the inner wall of the protective plate (3); a movable second ventilating cylinder (402) is arranged inside the first ventilating cylinder (401); a movable third ventilating cylinder (403) is arranged inside the second ventilating cylinder (402); a plurality of first air outlet holes are arranged in the rear half of the first ventilating cylinder (401); a plurality of second air outlet holes are arranged on the second ventilating cylinder (402) and the third ventilating cylinder (403); and regulating mechanisms are arranged between the first ventilating cylinder (401), the second ventilating cylinder (402) and the third ventilating cylinder (403) and the ventilation duct body (1); The adjustment mechanism comprises a first transmission rod (404), a second transmission rod (405) and a first extension rod (407), one end of the first transmission rod (404) is fixed to the top of the side of the third ventilation duct (403), one end of the second transmission rod (405) is fixed to the top of the side of the second ventilation duct (402), one end of the first extension rod (407) is fixed to the top of the inner wall of the ventilation duct body (1), and a retractable second extension rod (408) is arranged inside the first extension rod (407), and a retractable third extension rod (406) is arranged inside the second extension rod (408), a first connecting rod is arranged between the first transmission rod (404) and the third extension rod (406), and a second connecting rod is arranged between the second transmission rod (405) and the second extension rod (408).

2. According to the BIM-based energy-saving building ventilation duct air volume control device of claim 1, it is characterized in that: A rotatable rotating rod (412) is arranged at one end of the third extension rod (406) away from the second extension rod (408), a rotatable threaded rod (409) is arranged at the bottom of the ventilation duct body (1), and a threaded sleeve matching the threaded rod (409) is arranged at one end of the rotating rod (412) away from the third extension rod (406).

3. The BIM-based energy-saving building ventilation duct air volume control device according to claim 1 is characterized in that: A mounting block is fixed to the bottom of the baffle (2), a positioning rod (410) is fixed to the bottom of the side of the third ventilating cylinder (403), and the mounting block is sleeved on the outside of the positioning rod (410).

4. The BIM-based energy-saving building ventilation duct air volume control device according to claim 1 is characterized in that: A U-shaped handle is fixed to the side of the baffle (2), and a rotatable locking rod (411) is provided on the side of the handle away from the baffle (2).

5. The BIM-based energy-saving building ventilation duct air volume control device according to claim 1 is characterized in that: The fixing device (5) comprises an insertion rod (501) inserted on the protection plate (3), a rectangular groove is provided in the middle of the insertion rod (501), and a liftable blocking rod (502) is provided in the rectangular groove.

6. The BIM-based energy-saving building ventilation duct air volume control device according to claim 5 is characterized in that: A limiting plate (505) is fixed in the rectangular groove, and an oblique groove adapted to the limiting plate (505) is arranged on the side of the pressure rod (503).

7. The BIM-based energy-saving building ventilation duct air volume control device according to claim 6 is characterized in that: A stop rod (502) is fixed to one end of the insertion rod (501), and a threaded portion is provided at one end of the insertion rod (501) away from the stop rod (502), on which two nuts (504) are screwed.

8. The BIM-based energy-saving building ventilation duct air volume control device according to claim 6 is characterized in that: A pull ball is fixed on the top of the pressure rod (503) for people to grasp, and a buffer pad is arranged on the bottom of the pressure rod (503).

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