Constructional engineering environment monitoring equipment

Abstract

The invention discloses constructional engineering environment monitoring equipment, and relates to the technical field of constructional engineering, the constructional engineering environment monitoring equipment comprises a main body, the upper part of the main body is provided with an environment monitor for monitoring the constructional engineering environment, one side of the main body is provided with an observation window for observing the color of a prompt board, and the main body is internally provided with a color rotating mechanism; the color conversion mechanism is used for rotating the corresponding prompt board to the side close to the observation window according to data monitored by the environment monitoring instrument, and the side, close to the observation window, of the main body is provided with a lowering mechanism. The building engineering environment monitoring equipment can automatically rotate the red prompt board to the observation window when environment data is abnormal, and sound reminding is made through cooperation of the hit rod and the knocking rod, so that the early warning capability is remarkably improved, and field personnel can immediately sense the environment problem and make a response quickly.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and in particular to a construction engineering environment monitoring device. Background Art

[0002] Construction engineering refers to the engineering entity formed by the construction of various types of buildings and their ancillary facilities and the installation of supporting lines, pipelines, and equipment. These buildings include roofs, beams, columns, walls, foundations, and various types of buildings that can form internal spaces to meet people's needs for production, residence, study, public activities, etc., such as factories, theaters, hotels, shops, schools, hospitals, and residences. During the construction process of construction projects, a large amount of pollutants such as dust, noise, and wastewater will be generated, which will have a serious impact on the environment. At the same time, some safety hazards during the construction process may also cause damage to personnel and equipment. In order to effectively monitor and manage these pollutants and safety hazards, construction engineering environmental monitoring equipment came into being.

[0003] After searching, the Chinese patent number CN216283671 U discloses a green building engineering environmental monitoring device, including a base, a universal wheel is provided below the base, a sleeve, a storage battery and a push handle are provided on the base, a gear rod that can move up and down is provided in the sleeve, a rotating shaft that penetrates the side wall of the sleeve is provided at the top of the sleeve, a gear meshing with the gear rod is provided at one end of the rotating shaft located in the sleeve, and a crank is provided at one end located outside the sleeve, a cross bar, a wind sensor and a rotatable camera are provided on the top of the gear rod from bottom to top, a dust sensor is provided at one end of the cross bar, and a humidity sensor is provided at the other end, a controller is provided on the side wall of the sleeve, and the controller is electrically connected to the storage battery, wind sensor, camera, dust sensor and humidity sensor respectively. The advantages of this patent are: easy to move, height adjustment, and video recording function.

[0004] However, in actual use, the above patent lacks early warning function, making it difficult to quickly respond to sudden environmental changes, reducing the effectiveness of its monitoring. In other words, it is difficult to ensure that on-site personnel can immediately perceive environmental problems and respond quickly. Therefore, it is necessary to propose a construction project environmental monitoring device. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the prior art, such as lack of early warning function, difficulty in quickly responding to sudden environmental changes, and reduced effectiveness of monitoring, that is, difficulty in ensuring that on-site personnel can immediately perceive environmental problems and difficulty in responding quickly, and to propose a construction project environmental monitoring device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A construction engineering environment monitoring device comprises a main body, an environmental monitoring instrument for monitoring the construction engineering environment is arranged on the upper part of the main body, an observation window for observing the color of a prompt plate is opened on one side of the main body, a color rotating mechanism is arranged inside the main body, the color converting mechanism is used to rotate the corresponding prompt plate to a side close to the observation window according to data monitored by the environmental monitoring instrument, a lowering mechanism is arranged on the side of the main body close to the observation window, the lowering mechanism is used to move a struck rod out of a protective cover when the data monitored by the environmental monitoring instrument is abnormal, a reciprocating knocking mechanism is arranged on the side of the main body close to the observation window, the reciprocating knocking mechanism is used to make the knocking rod reciprocately knock the struck rod to emit a sound to remind relevant personnel when the data of the environmental monitoring instrument is abnormal;

[0008] Wherein, the observation window is convenient for relevant personnel to observe the color of the prompt board.

[0009] The above technical solution further includes:

[0010] The color rotation mechanism comprises a first rotation shaft arranged inside the main body, the first rotation shaft is fixedly connected with a rotation column, the first rotation shaft penetrates the main body and the rotation column and extends to the upper part of the main body.

[0011] The rotating column is fixedly connected to four reminder plates, and the reminder plates on two opposite sides form a group. One group of reminder plates is provided with a red plate inside for reminding when the environmental monitor monitors abnormal data, and the other group of reminder plates is provided with a green plate inside for reminding when the environmental monitor monitors normal data.

[0012] The lowering mechanism includes a protective cover arranged on a side of the main body close to the observation window, the protective cover is fixedly connected to the main body, a second connecting plate is slidably connected inside the protective cover, a limiting hole for limiting the second connecting plate is opened on one side of the second connecting plate, and a striking rod for being struck is fixedly connected to the lower part of the second connecting plate.

[0013] A second rack is fixedly connected to one side of the second connecting plate away from the limiting hole, the second rack is meshingly connected to a second gear, the second gear is fixedly connected to a fourth rotating shaft, and the fourth rotating shaft is rotatably connected to the protective sleeve.

[0014] The fourth rotating shaft is fixedly connected to the first gear, the first gear is meshedly connected to the first rack, the first rack is fixedly connected to the first connecting plate, the first connecting plate and the protective cover are slidingly connected, the lower part of the first connecting plate is sleeved with a spring, the side of the spring away from the first connecting plate is sleeved on the upper part of the second connecting plate, and the inside of the protective cover is fixedly connected to a fixing rod for preventing the second connecting plate and the first connecting plate from falling off.

[0015] The reciprocating knocking mechanism comprises a limit plate arranged on a side of the main body close to the observation window, the limit plate is rotatably connected to a second rotating shaft, the second rotating shaft is fixedly connected to an incomplete gear, the limit plate is slidably connected to a slide plate, and a slide groove is provided on the surface of the slide plate for the second rotating shaft to pass through;

[0016] The slide groove facilitates the slide plate to remain stable when it slides.

[0017] Teeth are provided on both sides of the slide plate, and the teeth provided on both sides of the slide plate are intermittently meshed with the incomplete gears. A knocking rod for knocking the struck rod is fixedly connected to one side of the slide plate.

[0018] A first motor for controlling the rotation of a first rotating shaft is fixedly installed at the lower part of the main body, a second motor for controlling the rotation of a second rotating shaft is fixedly installed inside the main body, and a control panel is provided on one side of the main body close to the observation window.

[0019] A threaded rod is rotatably connected to one side of the main body near the observation window, a slider is threadedly connected to the threaded rod, the slider is slidably connected to the main body, a limit rod for inserting into the limit hole is fixedly connected to the side of the slider near the protective sleeve, the threaded rod is fixedly connected to a bevel gear set, the bevel gear set is fixedly connected to a third rotating shaft, the third rotating shaft is rotatably connected to the main body, the third rotating shaft is transmission-connected to a belt, and the belt is transmission-connected to the first rotating shaft;

[0020] The limiting rod is convenient for limiting the limiting hole when the monitoring data of the environmental monitor is normal.

[0021] The present invention has the following beneficial effects:

[0022] 1. In the present invention, through the combination of the color rotating mechanism and the lowering mechanism, the construction engineering environmental monitoring equipment can automatically rotate the red prompt plate to the observation window when the environmental data is abnormal, and send out a sound reminder through the cooperation of the struck rod and the knocking rod, thereby significantly improving the early warning capability and ensuring that on-site personnel can immediately perceive environmental problems and respond quickly.

[0023] 2. In the present invention, through real-time monitoring and timely alarm, the equipment can monitor and manage the construction project environment more effectively, and on-site personnel can obtain information on abnormal environmental data in a timely manner and take corresponding measures to reduce environmental risks, thereby improving the effectiveness of monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural schematic diagram of a construction engineering environment monitoring device proposed by the present invention;

[0025] Figure 2 It is a schematic diagram of the first structure of the present invention;

[0026] Figure 3 It is a second structural schematic diagram of the present invention;

[0027] Figure 4 It is a schematic diagram of the third structure of the present invention;

[0028] Figure 5 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0029] Figure 6 for Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0030] Figure 7 for Figure 3 Enlarged schematic diagram of the structure at point C in the middle.

[0031] In the figure: 1. main body; 2. environmental monitor; 3. control panel; 4. protective cover; 5. limit plate; 6. observation window; 7. prompt plate; 8. first rotating shaft; 9. belt; 10. impact rod; 11. incomplete gear; 12. second rotating shaft; 13. slide plate; 14. first motor; 15. knock rod; 16. slide groove; 17. first connecting plate; 18. second connecting plate; 19. limit hole; 20. second motor; 21. rotating column; 22. third rotating shaft; 23. bevel gear set; 24. threaded rod; 25. slider; 26. limit rod; 27. spring; 28. first gear; 29. ​​second gear; 30. first rack; 31. second rack; 32. fourth rotating shaft; 33. fixing rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0033] Embodiment 1

[0034] like Figure 1 - Figure 7As shown, a construction engineering environment monitoring device comprises a main body 1, an environment monitor 2 for monitoring the construction engineering environment is arranged on the upper part of the main body 1, an observation window 6 for observing the color of a prompt plate 7 is opened on one side of the main body 1, a color rotating mechanism is arranged inside the main body 1, the color conversion mechanism is used to rotate the corresponding prompt plate 7 to the side close to the observation window 6 according to the data monitored by the environment monitor 2, a lowering mechanism is arranged on the side of the main body 1 close to the observation window 6, the lowering mechanism is used to move the struck rod 10 out of the inside of the protective cover 4 when the monitoring data of the environment monitor 2 is abnormal, a reciprocating knocking mechanism is arranged on the side of the main body 1 close to the observation window 6, the reciprocating knocking mechanism is used to make the knocking rod 15 reciprocately knock the struck rod 10 to make a sound to remind relevant personnel when the data of the environment monitor 2 is abnormal;

[0035] The color rotation mechanism includes a first rotation shaft 8 disposed inside the main body 1, the first rotation shaft 8 is fixedly connected to a rotation column 21, the first rotation shaft 8 penetrates the main body 1 and the rotation column 21 and extends to the upper part of the main body 1;

[0036] The rotating column 21 is fixedly connected with four prompt plates 7, and two opposite prompt plates 7 form a group. One group of prompt plates 7 is provided with a red plate for reminding when the monitoring data of the environmental monitor 2 is abnormal, and the other group of prompt plates 7 is provided with a green plate for reminding when the monitoring data of the environmental monitor 2 is normal;

[0037] The lowering mechanism includes a protective cover 4 arranged on one side of the main body 1 near the observation window 6, the protective cover 4 is fixedly connected to the main body 1, a second connecting plate 18 is slidably connected inside the protective cover 4, a limiting hole 19 for limiting the second connecting plate 18 is opened on one side of the second connecting plate 18, and a striking rod 10 for striking is fixedly connected to the lower part of the second connecting plate 18;

[0038] A second rack 31 is fixedly connected to one side of the second connecting plate 18 away from the limiting hole 19, the second rack 31 is meshedly connected to the second gear 29, the second gear 29 is fixedly connected to a fourth rotating shaft 32, and the fourth rotating shaft 32 is rotatably connected to the protective sleeve 4;

[0039] The fourth rotating shaft 32 is fixedly connected with the first gear 28, the first gear 28 is meshedly connected with the first rack 30, the first rack 30 is fixedly connected with the first connecting plate 17, the first connecting plate 17 and the protective cover 4 are slidably connected, the lower part of the first connecting plate 17 is sleeved with a spring 27, the side of the spring 27 away from the first connecting plate 17 is sleeved on the upper part of the second connecting plate 18, and the interior of the protective cover 4 is fixedly connected with a fixing rod 33 for preventing the second connecting plate 18 and the first connecting plate 17 from falling off;

[0040] The reciprocating knocking mechanism includes a limit plate 5 arranged on the side of the main body 1 close to the observation window 6, the limit plate 5 is rotatably connected to the second rotating shaft 12, the second rotating shaft 12 is fixedly connected to the incomplete gear 11, the limit plate 5 is slidably connected to the slide plate 13, and the surface of the slide plate 13 is provided with a slide groove 16 for the second rotating shaft 12 to pass through;

[0041] Teeth are provided on both sides of the slide plate 13, and the teeth provided on both sides of the slide plate 13 are intermittently meshed with the incomplete gear 11. A striking rod 15 for striking the struck rod 10 is fixedly connected to one side of the slide plate 13;

[0042] A first motor 14 for controlling the rotation of the first rotating shaft 8 is fixedly installed at the lower part of the main body 1 , a second motor 20 for controlling the rotation of the second rotating shaft 12 is fixedly installed inside the main body 1 , and a control panel 3 is provided on one side of the main body 1 close to the observation window 6 .

[0043] In this embodiment, when in use, the device is moved to a position where construction engineering environment monitoring is required, and the construction engineering environment is monitored by the environment monitor 2 arranged on the upper part of the main body 1. The environment monitor 2 can be placed at any desired position and connected to the control part to control the operation of the equipment. When the environment monitor 2 detects that the environmental data is normal, the prompt board 7 observed by the staff through the observation window 6 is in green. When the environment monitor 2 detects that the environmental data is abnormal, the control panel 3 will control the color rotation mechanism inside the main body 1 to rotate, that is, the first motor 14 will be started to drive the first rotating shaft 8 arranged at its output end to rotate. The rotation of the first rotating shaft 8 will drive the fixedly connected rotating column 21 to rotate, and the rotation of the rotating column 21 will cause the fixedly connected multiple prompt boards 7 to rotate;

[0044] That is, the red reminder plate 7 provided inside will be rotated to a position where it can be observed through the observation window 6, so as to serve as a reminder to relevant personnel. When the first rotating shaft 8 rotates, the lowering mechanism will be operated, that is, the second connecting plate 18 will not be limited by the limiting hole 19 opened on one side of the second connecting plate 18, and the second connecting plate 18 will slide downward under the gravity of the struck rod 10 and the elasticity of the spring 27. When the second connecting plate 18 slides, it will drive the fixedly connected second rack 31 to slide, and the second rack 31 will cause the meshingly connected second gear 29 to rotate, and the second gear 29 will make the fourth rotating shaft 32 which is fixedly connected to rotate, and the fourth rotating shaft 32 will drive the first gear 28 which is fixedly connected to rotate, and the first gear 28 will make the first rack 30 which is meshingly connected to descend at the same time, that is, it will drive the first connecting plate 17 to descend at the same time, the upper part of the spring 27 is fixedly connected to the first connecting plate 17, and the lower part of the spring 27 is fixedly connected to the second connecting plate 18 to prevent the spring 27 from falling off, and the first connecting plate 17 and the second connecting plate 18 have a protruding column on one side close to the spring 27, so that the spring 27 is sleeved on the protruding column to prevent the spring 27 from being deformed;

[0045] The fixing rod 33 fixedly connected inside the protective cover 4 can prevent the first connecting plate 17 and the second connecting plate 18 from falling off from the inside of the protective cover 4 when descending. The fixing rod 33 is thick enough and has strong hardness, and will not be deformed due to long-term use. That is, the impact rod 10 fixedly connected to the lower part of the second connecting plate 18 will eventually drop to one side of the limit plate 5. At this time, the control panel 3 will start the second motor 20 to drive the second rotating shaft 12 set at its output end to rotate. The second rotating shaft 12 will cause the fixedly connected incomplete gear 11 to rotate. The rotation of the incomplete gear 11 will cause the incomplete gear 11 to intermittently mesh with the teeth provided on both sides of the slide plate 13. The slide groove 16 provided on the surface of the slide plate 13 facilitates the slide plate 13 to remain stable when it slides back and forth inside the limit plate 5.

[0046] That is, the slide plate 13 will eventually move back and forth inside the limit plate 5, and the slide plate 13 will drive the knocking rod 15 fixedly connected on one side to continuously knock the lowered struck rod 10 to make a sound, that is, timely reminders can be given to the on-site personnel, so that the on-site personnel can immediately perceive the environmental problems and respond quickly. At the same time, a mobile phone card for dialing the person in charge of the environment is provided inside the device. The environmental monitor 2 monitors the environmental abnormality and controls the mobile phone card to dial the person in charge of the environment through the control panel 3 to prevent the person in charge from not being around the device at the time from not hearing the sound. After the relevant personnel have taken corresponding measures, the struck rod 10 is pushed to drive the second connecting plate 18 to rise, and the second connecting plate 18 drives the second gear 29 to rotate through the fixedly connected second rack 31, and the second gear 29 drives the fourth rotating shaft 32 to rotate, and the fourth rotating shaft 32 causes the meshing first rack 30 to synchronously drive the first connecting plate 17 to rise, that is, the device will eventually be restored to its original position, and at the same time, the first motor 14 drives the first rotating shaft 8 to rotate in the opposite direction through the control panel 3, so that the green prompt plate 7 is rotated back to the observation window 6.

[0047] Embodiment 2

[0048] like Figure 1 - Figure 7 As shown, a threaded rod 24 is rotatably connected to one side of the main body 1 near the observation window 6, and a slider 25 is threadedly connected to the threaded rod 24. The slider 25 and the main body 1 are slidably connected, and a limit rod 26 for inserting into the limit hole 19 is fixedly connected to the side of the slider 25 near the protective sleeve 4. The threaded rod 24 is fixedly connected to a bevel gear set 23, and the bevel gear set 23 is fixedly connected to a third rotating shaft 22. The third rotating shaft 22 and the main body 1 are rotatably connected, and the third rotating shaft 22 is transmission-connected to a belt 9, and the belt 9 and the first rotating shaft 8 are transmission-connected.

[0049] In this embodiment, when the first rotating shaft 8 rotates, the transmission-connected belt 9 will be transmitted, and the transmission of the belt 9 will cause the transmission-connected third rotating shaft 22 to rotate, and the rotation of the third rotating shaft 22 will drive the fixedly connected bevel gear set 23 to rotate, and the rotation of the bevel gear set 23 will drive the fixedly connected threaded rod 24 to rotate, and the rotation of the threaded rod 24 will cause the threaded slider 25 to move on the threaded rod 24, that is, the slider 25 will drive the limit rod 26 fixedly connected to the side of the protective sleeve 4 to move, so as to facilitate the limit rod 26 to move out of the limit hole 19, so as to facilitate the striking rod 10 to move out of the protective sleeve 4, so that the knocking rod 15 can continuously reciprocate. Knocking on the struck rod 10 serves as a reminder to the on-site personnel, ensuring that they can immediately perceive the environmental problems. At the same time, the upper part of the belt 9 and the side of the bevel gear set 23, the threaded rod 24 and the slider 25 away from the main body 1 are provided with a dust cover that prevents sunlight from penetrating, to prevent damage caused by sunlight exposure and dust accumulation. When the first rotating shaft 8 rotates in the opposite direction to drive the reminder plate 7 to return to its position, the third rotating shaft 22 is driven to rotate in the opposite direction through the belt 9, and finally the threaded rod 24 is driven to rotate in the opposite direction through the bevel gear set 23, and the slider 25 drives the limit rod 26 to return to its original position, that is, the limit rod 26 is reinserted into the limit hole 19 to keep the device stable.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction engineering environment monitoring device, comprising a main body (1), characterized in that: An environmental monitoring instrument (2) for monitoring the construction project environment is arranged on the upper part of the main body (1); an observation window (6) for observing the color of a prompt plate (7) is provided on one side of the main body (1); a color rotating mechanism is arranged inside the main body (1); the color rotating mechanism is used to rotate the corresponding prompt plate (7) to a side close to the observation window (6) according to data monitored by the environmental monitoring instrument (2); a lowering mechanism is arranged on the side of the main body (1) close to the observation window (6); the lowering mechanism is used to move the struck rod (10) out of the protective cover (4) when the data monitored by the environmental monitoring instrument (2) is abnormal; a reciprocating knocking mechanism is arranged on the side of the main body (1) close to the observation window (6); the reciprocating knocking mechanism is used to make the knocking rod (15) knock the struck rod (10) back and forth to emit a sound to remind relevant personnel when the data of the environmental monitoring instrument (2) is abnormal.

2. A construction engineering environment monitoring device according to claim 1, characterized in that: The color rotation mechanism comprises a first rotation shaft (8) arranged inside the main body (1), the first rotation shaft (8) being fixedly connected to a rotation column (21), the first rotation shaft (8) penetrating the main body (1) and the rotation column (21) and extending to the upper part of the main body (1).

3. A construction engineering environment monitoring device according to claim 2, characterized in that: The rotating column (21) is fixedly connected with four prompting plates (7), and the two opposite prompting plates (7) form a group. One group of prompting plates (7) is provided with a red plate for prompting when the monitoring data of the environmental monitor (2) is abnormal, and the other group of prompting plates (7) is provided with a green plate for prompting when the monitoring data of the environmental monitor (2) is normal.

4. A construction engineering environment monitoring device according to claim 1, characterized in that: The lowering mechanism comprises a protective cover (4) arranged on a side of the main body (1) close to the observation window (6); the protective cover (4) is fixedly connected to the main body (1); a second connecting plate (18) is slidably connected inside the protective cover (4); a limiting hole (19) for limiting the second connecting plate (18) is provided on one side of the second connecting plate (18); and a striking rod (10) for being struck is fixedly connected to the lower part of the second connecting plate (18).

5. A construction engineering environment monitoring device according to claim 4, characterized in that: A second rack (31) is fixedly connected to a side of the second connecting plate (18) away from the limiting hole (19); the second rack (31) is meshingly connected to a second gear (29); the second gear (29) is fixedly connected to a fourth rotating shaft (32); and the fourth rotating shaft (32) is rotatably connected to the protective sleeve (4).

6. A construction engineering environment monitoring device according to claim 5, characterized in that: The fourth rotating shaft (32) is fixedly connected with a first gear (28), the first gear (28) is meshingly connected with a first rack (30), the first rack (30) is fixedly connected with a first connecting plate (17), the first connecting plate (17) and the protective sleeve (4) are slidably connected, a spring (27) is sleeved on the lower part of the first connecting plate (17), the side of the spring (27) away from the first connecting plate (17) is sleeved on the upper part of the second connecting plate (18), and the interior of the protective sleeve (4) is fixedly connected with a fixing rod (33) for preventing the second connecting plate (18) and the first connecting plate (17) from falling off.

7. A construction engineering environment monitoring device according to claim 1, characterized in that: The reciprocating knocking mechanism comprises a limit plate (5) arranged on a side of the main body (1) close to the observation window (6); the limit plate (5) is rotatably connected to a second rotating shaft (12) inside, the second rotating shaft (12) is fixedly connected to an incomplete gear (11); the limit plate (5) is slidably connected to a slide plate (13) inside, and a sliding groove (16) is provided on the surface of the slide plate (13) for the second rotating shaft (12) to pass through.

8. A construction engineering environment monitoring device according to claim 7, characterized in that: Teeth are provided on both sides of the slide plate (13), and the teeth provided on both sides of the slide plate (13) are intermittently meshed with the incomplete gear (11). A knocking rod (15) for knocking the struck rod (10) is fixedly connected to one side of the slide plate (13).

9. A construction engineering environment monitoring device according to claim 1, characterized in that: A first motor (14) for controlling the rotation of the first rotating shaft (8) is fixedly installed at the lower part of the main body (1), a second motor (20) for controlling the rotation of the second rotating shaft (12) is fixedly installed inside the main body (1), and a control panel (3) is provided on a side of the main body (1) close to the observation window (6).

10. A construction engineering environment monitoring device according to claim 1, characterized in that: A threaded rod (24) is rotatably connected to a side of the main body (1) close to the observation window (6), and a slider (25) is threadedly connected to the threaded rod (24). The slider (25) is slidably connected to the main body (1). A limit rod (26) for inserting into the limit hole (19) is fixedly connected to the side of the slider (25) close to the protective sleeve (4). The threaded rod (24) is fixedly connected to a bevel gear set (23), and the bevel gear set (23) is fixedly connected to a third rotating shaft (22). The third rotating shaft (22) is rotatably connected to the main body (1). The third rotating shaft (22) is transmission-connected to a belt (9), and the belt (9) is transmission-connected to the first rotating shaft (8).

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