Supporting device

Abstract

The utility model discloses a supporting device, and relates to the technical field of supporting equipment, the supporting device is used for supporting a drilling machine, the potential safety hazard brought to constructors when the constructors drill holes in a top plate is avoided, and meanwhile, the working efficiency can be improved. The supporting device comprises a bearing frame, a first connecting rod, a second connecting rod and a driving mechanism, the first connecting rod is provided with a first end and a second end which are oppositely arranged, and the bearing frame is arranged at the first end of the first connecting rod. The second connecting rod is movably arranged on the first connecting rod, and one end of the second connecting rod is used for supporting the drilling machine. The driving mechanism is arranged on the first connecting rod, the second connecting rod is arranged at the driving end of the driving mechanism, and the driving mechanism is used for driving the second connecting rod to move in the length direction of the first connecting rod.

Description

Technical Field

[0001] The utility model relates to the technical field of supporting equipment, in particular to a supporting device. Background Art

[0002] In existing construction projects, during the construction of concrete top slab ceilings, pipe supports, etc., it is necessary to drill holes in the top slab.

[0003] In the prior art, when it is necessary to drill holes on the roof, a portable drill is generally used. When the building floor height is too high or the area is large, scaffolding is often required. In this way, there are great safety hazards when construction workers operate the drill on the scaffolding. Moreover, construction workers need to frequently go up and down the scaffolding to move positions, which reduces work efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a supporting device for supporting a drilling rig to avoid potential safety hazards to construction workers when construction workers drill holes on a top plate, and at the same time, to improve work efficiency.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a supporting device for supporting a drilling rig, the supporting device comprising a bearing frame, a first connecting rod, a second connecting rod and a driving mechanism, the first connecting rod having a first end and a second end arranged opposite to each other, the bearing frame being arranged at the first end of the first connecting rod. The second connecting rod is movably arranged at the first connecting rod, and one end of the second connecting rod is used to support the drilling rig. The driving mechanism is arranged at the first connecting rod, the second connecting rod is arranged at the driving end of the driving mechanism, and the driving mechanism is used to drive the second connecting rod to move along the length direction of the first connecting rod.

[0006] When the above technical solution is adopted, the drilling rig is installed at one end of the second connecting rod. When the driving mechanism drives the second connecting rod to move along the length direction of the first connecting rod, the drilling rig is synchronously driven to move along the length direction of the first connecting rod. When it is necessary to drill a hole on the wall, the driving mechanism can be started to drive the second connecting rod to move on the first connecting rod and move in the direction close to the wall. When the drill bit of the drilling rig contacts the wall, the drilling rig can be started. At the same time, the driving mechanism continues to drive the second connecting rod to move in the direction close to the wall on the first connecting rod, so that the drill bit of the drilling rig drills into the wall, thereby enabling drilling on the wall. Based on this, when it is necessary to drill a hole on the top plate, the supporting device can be placed on the ground, that is, the bearing frame is placed on the ground, and the driving mechanism drives the second connecting rod to rise and fall. In this way, there is no need to use a scaffold, which saves costs, and there is no need for construction personnel to stand on the scaffold to drill holes on the top plate, avoiding safety hazards to construction personnel when drilling holes on the top plate. In addition, when it is necessary to drill holes at different positions on the top plate, only the supporting device needs to be moved, and there is no need for construction personnel to go up and down the scaffold, which can improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0008] Figure 1 A schematic diagram of the positional relationship between the support device and the drilling rig provided in an embodiment of the utility model;

[0009] Figure 2 A schematic diagram of the connection relationship between the support rod and the first connecting rod provided in an embodiment of the utility model.

[0010] Reference numerals:

[0011] 1-carrying frame, 11-support rod, 12-universal wheel, 2-first connecting rod, 21-toothed ear plate,

[0012] 3-second connecting rod, 4-driving mechanism, 41-hand crank, 5-dust cover, 51-connecting sleeve, 6-storage box,

[0013] 7-driving rod, 8-connecting rod, 9-elastic part, 10-handle, 30-hoop,

[0014] 40-Retractable Hose, 100-Drilling Rig. DETAILED DESCRIPTION

[0015] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0016] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0017] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The meaning of "several" is one or more, unless otherwise clearly and specifically defined.

[0018] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0019] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0020] In existing construction projects, during the construction of concrete top slab ceilings, pipe supports, etc., it is necessary to drill holes in the top slab.

[0021] In the prior art, when it is necessary to drill holes on the roof, a portable drill is generally used. When the building floor height is too high or the area is large, scaffolding is often required. Since the torque of the portable drill is small, construction workers operating the portable drill on the scaffolding are at risk of being thrown out by the drill or their wrists are easily injured, which poses a great hidden danger to personal safety. At the same time, construction workers need to frequently go up and down the scaffolding to move positions, which reduces work efficiency. If the scaffolding area is large, more manpower is required to move the scaffolding together, and the economic investment is large. In addition, if there is a stepped floor at the construction site, the scaffolding cannot be used, and the drilling of the roof is difficult.

[0022] In view of the above technical problems existing in the prior art, see Figure 1 As shown, the embodiment of the utility model provides a supporting device for supporting a drilling rig 100, the supporting device comprises a carrier 1, a first connecting rod 2, a second connecting rod 3 and a driving mechanism 4, the first connecting rod 2 has a first end and a second end arranged opposite to each other, the carrier 1 is arranged at the first end of the first connecting rod 2. The second connecting rod 3 is movably arranged on the first connecting rod 2, and one end of the second connecting rod 3 is used to support the drilling rig 100. The driving mechanism 4 is arranged on the first connecting rod 2, and the second connecting rod 3 is arranged at the driving end of the driving mechanism 4, and the driving mechanism 4 is used to drive the second connecting rod 3 to move along the length direction of the first connecting rod 2.

[0023] When the above technical solution is adopted, the drilling machine 100 is installed at one end of the second connecting rod 3. When the driving mechanism 4 drives the second connecting rod 3 to move along the length direction of the first connecting rod 2, the drilling machine 100 is synchronously driven to move along the length direction of the first connecting rod 2. When it is necessary to drill a hole on the wall, the driving mechanism 4 can be started to drive the second connecting rod 3 to move on the first connecting rod 2 and move in the direction close to the wall. When the drill bit of the drilling machine 100 contacts the wall, the drilling machine 100 can be started. At the same time, the driving mechanism 4 continues to drive the second connecting rod 3 to move in the direction close to the wall on the first connecting rod 2, so that the drill bit of the drilling machine 100 drills into the wall, thereby achieving drilling on the wall. Based on this, when it is necessary to drill a hole on the top plate, the supporting device can be placed on the ground, that is, the supporting frame 1 is placed on the ground. At this time, the axis of the first connecting rod 2 can be in the vertical direction, and at the same time, the axis of the second connecting rod 3 can also be in the vertical direction. The driving mechanism 4 drives the second connecting rod 3 to rise and fall. In this way, there is no need to use a scaffold, which saves costs, and there is no need for construction workers to stand on the scaffold to drill holes in the top plate, avoiding safety hazards to construction workers when drilling holes in the top plate. At the same time, there is no need for construction workers to hold the drill 100, avoiding wrist injuries to construction workers. In addition, when it is necessary to drill holes at different positions on the top plate, only the support device needs to be moved, and there is no need for construction workers to go up and down the scaffold, which can improve work efficiency.

[0024] It can be seen that when the support device provided in the embodiment of the utility model is used to support the drill rig 100 to drill holes on the top plate, it can solve the problem in the prior art that an operating frame needs to be set up when using a portable drill rig. The drill rig 100 is installed on the support device without the need to set up a scaffolding. The lifting operation can be completed on the ground, and the drill bit can directly reach the working surface, reducing the safety hazards and cost investment caused by setting up an operating frame.

[0025] In specific implementation, the supporting device provided by the embodiment of the utility model can be made of lightweight anti-shear steel as a whole. When drilling holes at different positions on the top plate, it is easy to move and simple to operate. Only one person is needed to complete the operation, thereby improving work efficiency and reducing labor input. In actual situations, a motor with appropriate power can be installed by calculating the reaction force during drilling. The motor can be welded and fixed to the top of the second connecting rod 3. At the same time, different types of drill bits can be installed on the motor to meet the actual hole size requirements.

[0026] It should be noted that in a specific implementation, the driving mechanism 4 can be a linear module, in which case the first connecting rod 2 can be equivalent to the guide rail of the linear module, and the second connecting rod 3 can be installed on the slider of the linear module. Of course, this is just an example and is not a specific limitation.

[0027] In one possible implementation, see Figure 1As shown, along the length direction of the first connecting rod 2, a threaded hole penetrating the second end is provided in the first connecting rod 2. The second connecting rod 3 is provided with an external thread matching the threaded hole, so that the first connecting rod 2 is threadedly connected with the second connecting rod 3, and the second connecting rod 3 is used to support one end of the drilling rig 100 and extends out of the second end to facilitate the installation of the drilling rig 100. In specific implementation, the first connecting rod 2 can be a carbon steel pipe with a wall thickness of 6mm, the diameter of the first connecting rod 2 can be 50mm, the length of the first connecting rod 2 can be 1.5m, and the inner wall is threaded to form a threaded hole. In actual situations, the pitch of the threaded hole is required to be as small as possible to improve the footage accuracy of the drill bit. The length of the second connecting rod 3 can be 2.5m, and the lower 1.5m part of the second connecting rod 3 is threaded with an external thread, the specification of the external thread is the same as that of the threaded hole, and one end of the second connecting rod 3 is threadedly connected to the threaded hole. Of course, the relevant dimensions of the first connecting rod 2 and the second connecting rod 3 here are only examples and are not specifically limited.

[0028] In an optional manner, a connecting hole is provided on the outer wall of the first connecting rod 2, and the connecting hole is connected to the threaded hole. The driving mechanism 4 includes a conversion wheel and a hand crank 41, the conversion wheel is rotatably arranged in the connection hole, and the conversion wheel is threadedly matched with the second connecting rod 3. The hand crank 41 is rotatably arranged in the connection hole, and the conversion wheel is fixedly arranged at one end of the hand crank 41. In specific implementation, an external thread that matches the external thread on the second connecting rod 3 can be provided on the outer peripheral wall of the conversion wheel, so that when the hand crank 41 is shaken, the conversion wheel is driven to rotate, thereby driving the second connecting rod 3 to move relative to the first connecting rod 2, thereby driving the drilling rig 100 to move. It should be noted that the connection method between the conversion wheel and the second connecting rod 3 is similar to the worm gear drive connection. The hand crank 41 can use a finished "Z" shaped hand crank 41 with a plastic sleeve to facilitate the rotation of the hand crank 41.

[0029] In the prior art, the use of a portable drill requires high experience from construction workers. Drilling too deep can easily penetrate the floor slab, destroying the safety of the building. Drilling too shallow does not meet the subsequent construction requirements. If the drilling depth needs to be perfectly controlled, a drill bit of corresponding length needs to be customized, which is not economically reasonable. Therefore, in the embodiment provided by the utility model, a scale is provided on the outer wall of the second connecting rod 3 along the length direction of the second connecting rod 3. In this way, when the construction workers operate the hand crank 41 to advance the drill bit to drill, they can accurately control the drill bit penetration depth through the scale to ensure the drilling depth. Specifically, the scale is required to be located at the position where the second connecting rod 3 extends out of the first connecting rod 2, and at the same time, it is convenient for the operator to clearly see the scale line.

[0030] In one possible implementation, see Figure 1As shown, the support device provided by the embodiment of the utility model also includes a dust cover 5 and an elastic member 9, which are movably arranged on the second connecting rod 3. The dust cover 5 has an opening, and the opening faces the end away from the second end, which is used to form a dustproof space for accommodating the drilling rig 100 by surrounding the dust cover 5 and the wall surface to be drilled. In this way, when drilling holes on the top plate, the construction workers can avoid looking up in real time to check the upper drilling situation. The dust, particulate impurities, etc. generated by the drilling can easily enter the eyes, and the goggles can easily be covered by dust and cannot see clearly. At the same time, dust splashing can be avoided to pollute the environment. When drilling holes is required, the opening of the dust cover 5 can be directed toward the wall surface, and the dust cover 5 can be pressed against the wall surface. The drilling rig 100 is located in the dustproof space between the dust cover 5 and the wall surface. The elastic member 9 is sleeved on the second connecting rod 3, one end of the elastic member 9 is connected to the second connecting rod 3, and the other end of the elastic member 9 is connected to the dust cover 5. The two ends of the elastic member 9 elastically act on the second connecting rod 3 and the dust cover 5, respectively, to apply a force away from the second end to the dust cover 5. In a specific implementation, the elastic member 9 can be a spring, and the elastic member 9 is located inside the dust cover 5. When the dust cover 5 is pressed against the wall, the dust cover 5 is subjected to a force from the wall close to the second end, and the elastic member 9 is stretched. When the driving mechanism 4 drives the second connecting rod 3 to drive the drill bit of the drilling rig 100 to drill into the wall to drill a hole, the elastic member 9 is further stretched.

[0031] In actual situations, the dust cover 5 is a conical structure, which facilitates particles and dust to slide down along the inner wall of the dust cover 5. A connecting sleeve 51 is installed at one end of the dust cover 5 close to the first connecting rod 2. The connecting sleeve 51 is movably sleeved outside the second connecting rod 3. The connecting sleeve 51 can move up and down smoothly along the second connecting rod 3, and the elastic member 9 is connected to the connecting sleeve 51. Exemplarily, when the diameter of the second connecting rod 3 is 50 mm, the connecting sleeve 51 can be a stainless steel pipe with a wall thickness of 3 mm, a length of 50 mm, and a diameter of 60 mm. Lubricating oil can be used between the connecting sleeve 51 and the second connecting rod 3 to facilitate the sliding of the connecting sleeve 51.

[0032] In some embodiments, Figure 1As shown, the supporting device provided by the embodiment of the utility model further includes a driving rod 7 and a connecting rod 8, one end of the driving rod 7 is rotatably arranged on the first connecting rod 2, one end of the connecting rod 8 is rotatably connected to the driving rod 7, and the other end of the connecting rod 8 is rotatably connected to the dust cover 5, specifically, the other end of the connecting rod 8 is rotatably connected to the connecting sleeve 51. In this way, when the construction personnel hold the driving rod 7 and rotate the end of the driving rod 7 away from the first connecting rod 2 toward the first end close to the first connecting rod 2, the connecting sleeve 51 can be driven by the connecting rod 8 to move toward the direction close to the first connecting rod 2, so that the drill bit protrudes from the dust cover 5, which is conducive to the drill bit to accurately locate the drilling position. After the drill bit is aligned with the drilling position, the driving rod 7 is rotated upward to make the collector completely close to the top plate to prevent leakage of particles and dust. In specific implementation, the driving rod 7 can be made of a stainless steel tube, and plastic is arranged on the outer surface of the driving rod 7. The connecting rod 8 can be made of round steel with a diameter of 6 mm. An axle pin can be used at the connection position of the driving rod 7 and the connecting rod 8 to make the driving rod 7 and the connecting rod 8 rotatably connected.

[0033] In an alternative approach, Figure 1 As shown, the supporting device provided by the embodiment of the utility model further includes a storage box 6, which is arranged at the first end of the first connecting rod 2, and the storage box 6 is connected to the dust cover 5, and is used to collect dust and particulate matter generated when the drilling rig 100 drills a hole on the wall. The storage box 6 can be connected to the dust cover 5 through a retractable hose 40, and the retractable hose 40 can be fixed to the first connecting rod 2 by a clamp 30.

[0034] like Figure 1 As shown, when drilling on the top plate, the dust cover 5 is located above the storage box 6, so that the particles and dust generated by the drilling are guided into the storage box 6 under the action of their own gravity, so as to centrally collect and classify the particles and dust for processing, protect the environment, and solve the problem of "flying dust all over the sky" when using a portable drill in the prior art. A dust collector is used to collect and classify the generated dust, particulate impurities, etc.

[0035] In specific implementation, the storage box 6 can be made of iron sheet, the specification of the storage box 6 can be a cube with an edge length of 200mm, the top of the storage box 6 can be made into an inverted cone structure, and the storage box 6 can be welded to the first end of the first connecting rod 2. At the same time, a 100mm X100mm side door can be opened on one side of the storage box 6 to facilitate the dumping of collected particles and dust. A cone hole is opened on one side of the top of the storage box 6 so that the storage box 6 is connected to the retractable hose 40, and a brush can be installed on the top of the storage box 6 to avoid the storage box 6 from being poorly sealed due to the uneven connection with the first connecting rod 2, causing dust to fly out. The retractable hose 40 can be a retractable metal hose, or a retractable plastic hose, of course, but not limited to this.

[0036] As an optional method, the support frame 1 includes a plurality of support rods 11, which are arranged circumferentially along the axis of the first connecting rod 2, and the support rods 11 are rotatably arranged on the first connecting rod 2. The number of the support rods 11 can be three, four or more, and the plurality of support rods 11 are evenly arranged circumferentially along the axis of the first connecting rod 2. For specific implementation, see Figure 2 As shown, a toothed ear plate 21 corresponding to the support rod 11 can be provided on the first connecting rod 2, and one support rod 11 can correspond to one toothed ear plate 21. One end of the support rod 11 can be rotatably connected to the toothed ear plate 21 through a pin shaft. At the same time, a latch that is engaged with the tooth groove of the toothed ear plate 21 is provided on the support rod 11. In addition, a spring can be provided, one end of the spring is mounted on the pin shaft, and the other end of the spring can be mounted on the support rod 11. In specific operation, the support rod 11 can be rotated to insert the latch into a tooth groove, so that the support rod 11 can be fixed. The support rod 11 can be a stainless steel pipe with a diameter of 30 mm, and the length of the support rod 11 can be 600 mm. The toothed ear plate 21 is fixed to the first end of the first connecting rod 2. When folding, the end of the support rod 11 away from the first connecting rod 2 can be rotated in the direction close to the second end, and the folding and locking can be controlled by the spring and latch.

[0037] Further, see Figure 1 As shown, a universal wheel 12 with a brake structure is provided at the bottom of the carrier 1, and the universal wheel 12 can be locked when drilling. The universal wheel 12 can adopt the existing market finished product with brake rubber wheel, and the diameter of the rubber wheel is selected to be 80mm-100mm. Too large or too small is not conducive to stability and walking.

[0038] like Figure 1 As shown, the support device provided by the embodiment of the utility model also includes a handle 10, which is arranged on the first connecting rod 2. When drilling a hole, the construction worker holds the handle 10, which can brake the friction between the universal wheel 12 and the ground and the handle 10 to support and eliminate the motor reaction force, thereby avoiding wrist injuries of the construction worker. In addition, the drill 100 switch can be installed on the handle 10, and the handle 10 can be a finished product with a plastic sleeve handle 10, and the handle 10 can be fixed on the first connecting rod 2 by welding or connecting with a clamp 30.

[0039] In addition, a folding bracket can be provided on the first connecting rod 2, and the folding bracket can be opened when the supporting device is laid flat to avoid damage to components. The folding bracket is rotatably connected to the first connecting rod 2, and the folding bracket can be folded when drilling holes on the top plate to avoid taking up space and affecting operation.

[0040] In summary, the support device provided by the embodiment of the utility model can avoid the problems of using a traditional portable drilling rig, such as the need to set up scaffolding, low work efficiency, and greater safety risks. At the same time, for ease of understanding, the use of the support device provided by the embodiment of the utility model to support the drilling rig 100 to drill holes on the top plate is now illustrated by way of example and comparison, which can save costs compared to the prior art. Of course, this is not a specific limitation here.

[0041] Assume that a room top plate ceiling fixing suspension rod needs to be drilled, the labor wage is 300 yuan / day, and the rental fee of a scaffold is 50 yuan / day. If the traditional scaffolding is used, two people are required to cooperate in the operation, installation, moving scaffolding, etc., and the work needs two days to complete. Without considering other expenses, the labor cost generated is 600 yuan, and the scaffolding rental fee is 100 yuan, which requires a total of 700 yuan. If the support device provided by the embodiment of the utility model is used, one person can complete the operation, eliminating the preparation time for setting up and moving scaffolding, and the work can be completed in 1 day. Without considering other expenses, the labor cost generated is 300 yuan, a total of 300 yuan, and the cost saving is 400 yuan. At the same time, the support device of the present application can be reused. From the above examples, it can be seen that the support device of the present application can save costs.

[0042] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0043] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited to them. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A supporting device, characterized in that: Used to support the drilling rig; the supporting device comprises: Carrying frame; A first connecting rod having a first end and a second end that are oppositely disposed; the supporting frame is disposed at the first end of the first connecting rod; A second connecting rod, movably disposed on the first connecting rod; one end of the second connecting rod is used to support the drilling rig; The driving mechanism is arranged on the first connecting rod, and the second connecting rod is arranged on the driving end of the driving mechanism, and the driving mechanism is used to drive the second connecting rod to move along the length direction of the first connecting rod.

2. The support device according to claim 1, characterized in that: Along the length direction of the first connecting rod, a threaded hole penetrating the second end is opened in the first connecting rod; the second connecting rod is provided with an external thread matching the threaded hole, so that the first connecting rod is threadedly connected to the second connecting rod, and the second connecting rod is used to support one end of the drilling rig to extend out of the second end.

3. The supporting device according to claim 2, characterized in that: A connecting hole is provided on the outer wall of the first connecting rod, and the connecting hole is connected to the threaded hole; the driving mechanism comprises: A conversion wheel, rotatably disposed in the connection hole, the conversion wheel being threadably engaged with the second connection rod; A hand crank is rotatably arranged on the connecting hole; and the conversion wheel is fixedly arranged on one end of the hand crank.

4. The supporting device according to claim 2, characterized in that: Along the length direction of the second connecting rod, a scale is arranged on the outer wall of the second connecting rod.

5. The supporting device according to claim 1, characterized in that: The supporting device also includes: A dust cover is movably arranged on the second connecting rod; the dust cover has an opening, the opening is toward an end away from the second end, and is used for the dust cover and the wall surface to be drilled to form a dustproof space for accommodating the drilling machine; An elastic member is sleeved on the second connecting rod, and two ends of the elastic member elastically act on the second connecting rod and the dust cover respectively, so as to apply a force to the dust cover away from the second end.

6. The supporting device according to claim 5, characterized in that: The supporting device also includes: A driving rod, one end of which is rotatably disposed on the first connecting rod; One end of the linkage rod is rotatably connected to the driving rod, and the other end is rotatably connected to the dust cover.

7. The supporting device according to claim 5, characterized in that: The supporting device further comprises a storage box, which is arranged at the first end of the first connecting rod. The storage box is communicated with the dust cover and is used for collecting dust and particles generated when the drilling rig drills a hole on the wall surface.

8. The supporting device according to claim 1, characterized in that: The support frame includes a plurality of support rods, which are circumferentially arranged along the axis of the first connecting rod; and the support rods are rotatably arranged on the first connecting rod.

9. The supporting device according to claim 1, characterized in that: A universal wheel with a brake structure is arranged at the bottom of the carrier.

10. The supporting device according to claim 1, characterized in that: The supporting device further includes a handle, and the handle is arranged on the first connecting rod.

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