A wall hole opener support device for building construction

Abstract

The present invention relates to the technical field of construction machinery, and specifically to a support device for a wall hole opener for construction, comprising a support main frame and a hydraulic jack, wherein the top of the support main frame is connected to a top telescopic frame, the bottom of the support main frame is fixedly connected to the hydraulic jack, an installation groove is provided inside the support main frame, a fixing component is slidably engaged on one side of the installation groove, and an adjustment mechanism for facilitating the height adjustment of the fixing component is installed inside the installation groove, and one side of the adjustment mechanism is connected to a power mechanism; the use of this device reduces the physical labor of the constructors, improves the manual lifting process to mechanical lifting, avoids various risks of manual lifting, and also avoids the possibility of expansion bolts falling off, reduces waste, and can better adjust the position of the hole than when using expansion bolts.

Description

Technical Field

[0001] The invention relates to the technical field of construction machinery, in particular to a wall hole opener supporting device for construction. Background Art

[0002] After the completion of existing buildings, some pipelines and holes are not pre-buried in molds in advance, resulting in the need to use a hole opener to drill holes in the walls at the later stage of wall completion.

[0003] Especially the drilling process of some large holes is more complicated and time-consuming and labor-intensive, as shown in the attached figure of the manual. Figure 1 The following is a relatively common hole opener shown in the figure. This type of hole opener has a wide range of applications and is moderately priced. It is a common type of hole opener at general construction sites. When drilling a hole, it is generally necessary to first drive an expansion bolt into the wall 00 above the hole, and then use the expansion bolt to fix the fixing base 21 of the hole opener 1. Only then can the hole opener 1 be opened and the rotating rod 11 of the hole opener 1 be rotated so that the hole opener 1 gradually pushes the drill bit into the wall along the rack 22 on the connecting rod 2 to drill a hole. However, this type of hole opener 1 is prone to the following problems during use:

[0004] (1) When the hole opening position is high, the construction worker is generally required to install the expansion bolt first, and then manually lift the hole opener to the expansion bolt position for fixing. Since the holes opened at the construction site are generally opened in batches of a large number, and this type of hole opener is heavy, when lifting the hole opener to the expansion bolt, it is easy to cause the hole opener to fall off and be hit, etc., and lifting the hole opener for a long time and multiple times can easily cause fatigue to the construction worker, which increases the risk of injury to the construction worker;

[0005] (2) During the drilling process, this type of hole opener can only drill one hole with one expansion bolt. It is used once and the frequency of use is too low, resulting in a waste of expansion bolts. Moreover, once the expansion bolts are fixed to the wall and fall off, the hole opener cannot bear the force to continue drilling. At this time, it is very troublesome to re-fix the expansion bolts. It is necessary to use a larger-sized expansion bolt to hit the previous position or switch to another position to re-fix the expansion bolt to fix the hole opener. It is even necessary to change the position to drill the hole. In either case, the drilling process becomes more cumbersome and time-consuming and labor-intensive, which seriously affects the efficiency of drilling.

[0006] (3) When using expansion bolts, it is not convenient to adjust the hole position. If the position is incorrect, the expansion bolts need to be re-inserted and the hole opener needs to be adjusted, which will also cause waste and inconvenience in operation.

[0007] Therefore, the present invention provides a wall hole opener supporting device for construction that can solve the above-mentioned problems. Summary of the Invention

[0008] To address the problems of the existing technology, the present invention provides a support device for a wall hole opener used in construction. This device is designed to address a series of issues, including the potential for accidental injury when lifting the hole opener to the expansion bolt, as well as the waste caused by infrequent expansion bolt use and the resulting effects of bolts falling off.

[0009] The technical solution adopted by the present invention to solve its technical problems is: a wall hole opener support device for construction, comprising a support main frame and a hydraulic jack, wherein the top of the support main frame is connected to a top telescopic frame, the bottom of the support main frame is fixedly connected to the hydraulic jack, a mounting groove is provided inside the support main frame, a fixing component for fixing the hole opener is slidably engaged on one side of the mounting groove, and an adjustment mechanism for facilitating the height adjustment of the fixing component is installed inside the mounting groove, and a power mechanism is connected to one side of the adjustment mechanism;

[0010] The cam is connected to the second sprocket via a link tracing mechanism and the second sprocket via a link tracing mechanism is connected to the second sprocket via a link tracing mechanism.

[0011] Preferably, the fixing assembly includes a square tube, a rotating fixing rod and a cross slider. The two cross sliders are slidably engaged on one side of the mounting groove, and the upper and lower ends of the cross sliders are fixedly connected to the chain. One side of the cross slider is fixedly connected to the square tube, and the top of the square tube is threadedly connected to the rotating fixing rod.

[0012] Preferably, a rotating assembly for rotating the top telescopic frame is provided between the top telescopic frame and the supporting main frame;

[0013] The cam is secured to the bottom of the support frame and is secured to the bottom of the support frame with a first end in contact with the first gear and a second end in contact with the support frame.

[0014] Preferably, the sliding clamping assembly includes a fixed tooth and a clamping tooth, a cylindrical portion is provided in the middle of the spline sliding shaft, the cylindrical portion is not provided with a spline, the clamping tooth is fixed to the side wall of the spline sliding shaft, the fixed tooth is fixed to the side wall of the sliding groove inside the first worm, and the clamping tooth and the fixed tooth are installed in a staggered manner.

[0015] Preferably, the power mechanism is configured as a crank or a drive motor, and the output shaft of the crank or the drive motor is fixedly connected to one end of the second worm.

[0016] Preferably, a bottom telescopic frame is fixed to the bottom of the hydraulic jack, and the top telescopic frame and the bottom telescopic frame both include a sleeve rod, a sliding rod is slidably connected inside the sleeve rod, and the top telescopic frame and the bottom telescopic frame are both provided with a pin connection structure.

[0017] Preferably, the latch connection structure includes sockets provided on the side walls of the sleeve rod and the slide rod, and latches are inserted into the sockets of the sleeve rod and the slide rod.

[0018] Preferably, support fixing plates are welded to the tops of the sliding rods of the top telescopic frame and the bottom telescopic frame, and anti-slip spikes are provided on the side of the support fixing plates away from the connection.

[0019] Preferably, a receiving groove is provided at the bottom of the top telescopic frame, close to the rotating groove, and a top block is rotatably connected inside the receiving groove.

[0020] Beneficial effects of the present invention:

[0021] (1) The wall hole opener support device for construction described in the present invention adopts the cooperation of an adjustment mechanism and a hydraulic jack. The main support frame and the top telescopic frame are raised to the upper floor by the hydraulic jack, and then the adjustment mechanism is used to complete the upward movement of the hole opener. The use of this device reduces the physical labor of the constructors, improves the manual lifting process to mechanical lifting, and avoids various risks of manual lifting. At the same time, it also avoids the possibility of expansion bolts falling off, reduces waste, and is better than using expansion bolts to adjust the position of the hole.

[0022] (2) The present invention relates to a support device for a wall hole opener for construction, which adopts a rotating assembly. The push block drives the spline sliding shaft, and the spline sliding shaft drives the latching teeth to slide toward the fixed teeth until the latching teeth slide into between the fixed teeth. The latching teeth drive the first worm through the fixed teeth, and the first worm drives the meshed first worm wheel to rotate. The first worm wheel drives the top telescopic frame to rotate through the rotating block until the rotating block rotates 90°, so that the top telescopic frame has a certain angle adjustment function, which realizes the lifting operation of the hole opener without manual labor between floors that are too high, when there is no top support, and when multiple holes need to be opened vertically, and also makes the support device more applicable.

[0023] (3) The present invention provides a support device for a wall hole opener for construction, which adopts a worm gear combination. The worm gear combination of the second worm and the second worm wheel of the device has a self-locking property, so that the hole opener can be stably maintained at the current height without sliding downward. The worm gear combination of the first worm and the first worm wheel also has a self-locking property, so that the top telescopic frame can be stably maintained in a vertical state with the supporting main frame. The support device has stronger applicability and can adapt to different external wall conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings and examples.

[0025] Figure 1 This is a schematic diagram of the working state of a hole opener in the prior art;

[0026] Figure 2 A vertical schematic diagram of a wall hole opener support device for construction provided by the present invention;

[0027] Figure 3 A vertical schematic diagram of a wall hole opener support device for construction provided by the present invention;

[0028] Figure 4 A schematic diagram of the internal structure of a mounting slot of a wall hole opener support device for construction provided by the present invention;

[0029] Figure 5 for Figure 4 Enlarged view of point E;

[0030] Figure 6 A schematic diagram of the connection structure of the adjustment mechanism and the rotating assembly provided by the present invention;

[0031] Figure 7 for Figure 6 A magnified view of point A;

[0032] Figure 8 A schematic diagram of the connection structure of the receiving groove and the rotating groove provided by the present invention;

[0033] Figure 9 A schematic diagram of the connection structure of the top telescopic frame and the rotating assembly provided by the present invention;

[0034] Figure 10 A top view of a wall hole opener support device for construction provided by the present invention;

[0035] Figure 11 for Figure 10 EE cross-sectional view;

[0036] Figure 12 for Figure 11 Enlarged view of point C;

[0037] Figure 13 A schematic diagram of the internal structure of the first worm provided by the present invention;

[0038] Figure 14 Figure 11 Enlarged view of point D.

[0039] In the figure: 00, wall; 1, hole opener; 11, rotating rod; 2, connecting rod; 21, fixed seat; 22, rack; 3, supporting main frame; 4, top telescopic frame; 5, bottom telescopic frame; 6, hydraulic jack; 7, rotating assembly; 71, rotating groove; 72, first worm gear; 73, first worm; 74, push block; 75, rotating block; 76, sliding groove; 77, fixed tooth; 78, latching tooth; 79, fixed block; 8, Adjusting mechanism; 81. Chain; 82. Second worm gear; 83. Rotating shaft; 84. First sprocket; 85. Second worm gear; 86. Second sprocket; 87. Splined sliding shaft; 9. Fixing assembly; 91. Square tube; 92. Rotating fixing rod; 93. Cross slider; 10. Mounting groove; 12. Top block; 13. Storage groove; 14. Crank handle; 16. Pin connection structure; 17. Sliding rod; 18. Sleeve rod; 19. Support fixing plate. DETAILED DESCRIPTION

[0040] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0041] Example 1:

[0042] like Figures 1-14 As shown, the present invention relates to a wall hole opener support device for construction, comprising a support main frame 3 and a hydraulic jack 6. The top of the support main frame 3 is connected to a top telescopic frame 4, and the bottom of the support main frame 3 is fixedly connected to the hydraulic jack 6. A mounting groove 10 is provided inside the support main frame 3, and a fixing component 9 for fixing the hole opener 1 is slidably engaged on one side of the mounting groove 10. An adjusting mechanism 8 for adjusting the height of the fixing component 9 is installed inside the mounting groove 10, and a power mechanism is connected to one side of the adjusting mechanism 8.

[0043] The adjusting mechanism 8 includes a chain 81, a second worm 82, a rotating shaft 83, a first sprocket 84, a second worm wheel 85, a second sprocket 86 and a spline sliding shaft 87. The two ends of the second worm 82 are rotatably connected to the side walls of the support main frame 3 at the bottom of the installation groove 10. The second worm 82 is connected to the power mechanism, and a rotating shaft 83 is provided above the second worm 82. The rotating shaft 83 and the second worm 82 are perpendicular to each other. The rotating shaft 83 is rotatably connected to the other two side walls of the support main frame 3 at the bottom of the installation groove 10. A second worm wheel 85 is fixed in the middle of the rotating shaft 83. The bottom of the second worm wheel 85 is engaged with the second worm 82. The first sprockets 84 are symmetrically mounted on both sides of the wheel 85. The first sprockets 84 are fixedly connected to the rotating shaft 83. Both ends of the spline sliding shaft 87 are inserted into the side walls of the supporting main frame 3, and the spline sliding shaft 87 and the rotating shaft 83 are connected to the same pair of side walls of the supporting main frame 3. The two ends of the spline sliding shaft 87 are symmetrically spline-connected with the second sprockets 86. The two second sprockets 86 are rotatably connected to the side walls of the supporting main frame 3 on the side away from each other. The second sprockets 86 are located directly above the first sprocket 84, and a chain 81 is connected between the second sprocket 86 and the first sprocket 84 on the same side, and the adjacent sides of the two chains 81 are commonly connected to the fixed component 9.

[0044] In this embodiment, the power mechanism can drive the second worm 82 to rotate, and the second worm 82 drives the meshed second worm wheel 85 to rotate. The second worm wheel 85 drives the two first sprockets 84 through the rotating shaft 83. The first sprocket 84 drives the second sprocket 86 to rotate through the chain 81. After the second sprocket 86 rotates, the chain 81 drives the fixed component 9 fixed on one side to move upward along the installation groove 10, and the fixed component 9 drives the hole opener 1 to move upward until the hole opener 1 moves to the position where a hole is required to be opened. Since the worm and worm combination of the second worm 82 and the second worm wheel 85 used here has a self-locking property, the hole opener 1 can stably maintain the current height without sliding downward.

[0045] In this embodiment, the spline sliding shaft 87 assists in fixing the two second sprockets 86 .

[0046] like Figure 2-7As shown, the fixing assembly 9 includes a square tube 91, a rotating fixing rod 92 and a cross slider 93. The two cross sliders 93 are slidably engaged with one side of the mounting groove 10, and the upper and lower ends of the cross sliders 93 are fixedly connected to the chain 81. One side of the cross sliders 93 is fixedly connected to the square tube 91, and the rotating fixing rod 92 is threadedly connected to the top of the square tube 91.

[0047] In this embodiment, the connecting rod 2 of the hole opener 1 is inserted into the square tube 91 of the fixing assembly 9, and then the rotating fixing rod 92 is rotated so that the rotating fixing rod 92 moves downward along the thread, gradually contacts and squeezes the side wall of the connecting rod 2 of the hole opener 1, and fixes the connecting rod 2 to the square tube 91.

[0048] like Figure 3-7 As shown, the power mechanism is configured as a crank 14 or a drive motor, and the output shaft of the crank 14 or the drive motor is fixedly connected to one end of the second worm 82 for providing power.

[0049] like Figure 2 、 3 As shown in 4 , a bottom telescopic frame 5 is fixed to the bottom of the hydraulic jack 6 , and both the top telescopic frame 4 and the bottom telescopic frame 5 include a sleeve rod 18 , a slide rod 17 is slidably connected inside the sleeve rod 18 , and both the top telescopic frame 4 and the bottom telescopic frame 5 are provided with a latch connection structure 16 .

[0050] like Figure 3 、 4 As shown, the latch connection structure 16 includes a socket opened on the side wall of the sleeve rod 18 and the slide rod 17. The sockets of the sleeve rod 18 and the slide rod 17 are plugged with latches. By pulling out the latch and pulling the slide rod 17, the length of the sleeve rod 18 and the slide rod 17 can be adjusted. Then, the latch is inserted into the appropriate socket to be fixed. Figure 3 In the state shown in the figure), the length of the sleeve rod 18 and the slide rod 17 is greater than the length of the hole opener 1.

[0051] like Figure 2-4 As shown, a support fixing plate 19 is welded to the top of the slide rod 17 of the top telescopic frame 4 and the bottom telescopic frame 5. The support fixing plate 19 is provided with anti-slip spikes on the side away from the connection, which can effectively increase the friction to improve the stability of the device.

[0052] Example 2:

[0053] like Figure 4 、 6, 8, 9, 11, 12, 13, based on Example 1, a wall hole opener support device for construction according to the present invention further includes a rotating assembly 7 for rotating the top telescopic frame 4 provided between the top telescopic frame 4 and the supporting main frame 3; the rotating assembly 7 includes a rotating groove 71, a first worm gear 72, a first worm 73, a push block 74, a rotating block 75, a sliding groove 76 and a fixed block 79, a rotating groove 71 is provided on the side wall of the top of the supporting main frame 3 adjacent to the fixed assembly 9, a rotating block 75 is installed inside the rotating groove 71, and the rotating block 75 is fixed to the bottom of the top telescopic frame 4, A first worm gear 72 is fixed to the bottom of the block 75, and both ends of the first worm gear 72 are rotatably connected to the inner wall of the support main frame 3. The first worm 73 is sleeved on the outside of the spline sliding shaft 87, and fixed blocks 79 are provided on both sides of the first worm 73. The fixed blocks 79 are fixed to the inner wall of the support main frame 3 inside the mounting groove 10. The first worm 73 is rotatably connected between the two fixed blocks 79, and the second sprocket 86 is rotatably connected to the inside of the fixed block 79 on the side away from the inner wall of the support main frame 3. A sliding groove 76 is provided inside the first worm 73, and a sliding clamping assembly for controlling the transmission of power to the rotating assembly 7 is provided inside the sliding groove 76;

[0054] like Figure 12 、 13 As shown, the sliding clamping assembly includes a fixed tooth 77 and a clamping tooth 78. A cylindrical portion is provided in the middle of the spline sliding shaft 87. The cylindrical portion is not provided with a spline. The clamping tooth 78 is fixed to the side wall of the spline sliding shaft 87. The fixed tooth 77 is fixed to the side wall of the sliding groove 76 inside the first worm 73. The clamping tooth 78 and the fixed tooth 77 are installed in a staggered manner with respect to each other.

[0055] In this embodiment, the vertical shape (such as Figure 2 Adjust the vertical shape (as shown) Figure 3 When the state shown is reached, it is necessary to press the push block 74, which drives the spline sliding shaft 87, and the spline sliding shaft 87 drives the latching teeth 78 to slide toward the fixed teeth 77 until the latching teeth 78 slide between the fixed teeth 77. At this time, the crank 14 is turned or the electric drive motor is turned on to drive the second worm 82 to rotate, and the second worm 82 drives the meshing second worm gear 85 to rotate, and the second worm gear 85 drives the two first sprockets 84 through the rotating shaft 83, and the first sprocket 84 drives the second sprocket 86 to rotate through the chain 81, and the second sprocket 86 drives the spline sliding shaft 8 7 rotates, the spline sliding shaft 87 drives the latching tooth 78 to rotate, the latching tooth 78 drives the first worm 73 through the fixed tooth 77, the first worm 73 drives the meshing first worm gear 72 to rotate, and the first worm gear 72 drives the top telescopic frame 4 to rotate through the rotating block 75 until the rotating block 75 rotates 90°, and then presses the push block 74 on the other side to push the latching tooth 78 out of the position of the fixed tooth 77. Since the worm gear combination of the first worm 73 and the first worm gear 72 has a self-locking property, the top telescopic frame 4 can stably maintain a vertical state with the supporting main frame 3.

[0056] Working principle:

[0057] (1) Vertical shape (such as Figure 2 The state shown): When used between normal floors, the support device is placed near the wall 00 where a hole needs to be drilled, and then the lever handle of the hydraulic jack 6 is repeatedly pressed to make the hydraulic jack 6 push the support main frame 3 upward, and the support main frame 3 drives the top telescopic frame 4 to rise until it reaches the upper floor, and then the hydraulic jack 6 is continued to be pressed until the constructor can no longer press the lever handle of the hydraulic jack 6 by manpower. At this time, the support device is clamped between the two floors. It should be noted that the position of the fixing assembly 9 needs to be adjusted before tightening so that the hole opener 1 can be aligned with the position where the hole is required to be drilled. After clamping and aligning the position, the connecting rod 2 of the hole opener 1 is inserted into the square tube 91 of the fixing assembly 9, and then the rotating fixing rod 92 is rotated so that the rotating fixing rod 92 moves downward along the thread, gradually contacts and squeezes the side wall of the connecting rod 2 of the hole opener 1, and fixes the connecting rod 2 to the square tube 91, and then shakes the crank 14 or turns on the electric drive motor to drive the second worm 82 to rotate, and the second worm 82 drives the meshing second worm gear 8 5 rotates, the second worm gear 85 drives the two first sprockets 84 through the rotating shaft 83, and the first sprocket 84 drives the second sprocket 86 to rotate through the chain 81. After the second sprocket 86 rotates, the chain 81 drives the cross slider 93 fixed on one side to move up along the installation groove 10, and the cross slider 93 drives the square tube 91 to move up, and the square tube 91 drives the hole opener 1 fixed by the rotating fixing rod 92 inside it to move up until the hole opener 1 moves up to the position where the hole needs to be opened. Due to the worm gear worm ... The rod assembly has a self-locking property, so that the hole opener 1 can be stably maintained at the current height without sliding downward. Then, the rotating fixing rod 92 can be loosened, and the connecting rod 2 of the hole opener 1 can be pushed to press the fixing seat 21 of the hole opener 1 against the wall 00 to increase the stability of the supporting device. Then, the rotating fixing rod 92 is rotated again to fix the connecting rod 2. Then, the hole opener 1 can be opened to perform the drilling operation. After the drilling is completed, the oil drain valve of the hydraulic jack 6 is turned. Under the action of the deadweight of the heavy object, the hydraulic jack 6 drops to its original position.

[0058] (2) Vertical (e.g. Figure 3The state shown): It is used between floors that are too high or when there is no top support or when multiple holes need to be opened vertically, it is necessary to first rotate the top block 12 to the storage slot 13, and then press the push block 74. The push block 74 drives the spline sliding shaft 87, and the spline sliding shaft 87 drives the latching teeth 78 to slide toward the fixed teeth 77 until the latching teeth 78 slide between the fixed teeth 77. At this time, turn the crank 14 or turn on the electric drive motor to drive the second worm 82 to rotate. The second worm 82 drives the meshing second worm gear 85 to rotate. The second worm gear 85 drives the two first sprockets 84 through the rotating shaft 83. The first sprocket 84 drives the second sprocket 86 to rotate through the chain 81. The second sprocket 86 drives the rotating spline sliding shaft 87 to rotate. The spline sliding shaft 87 drives the latching teeth 78 to rotate. The latching teeth 78 drive the first worm 73 through the fixed teeth 77. The first worm 73 drives the meshing first worm gear 72 to rotate. The movable block 75 drives the top telescopic frame 4 to rotate until the rotating block 75 rotates 90 degrees, and then presses the pushing block 74 on the other side to push the locking tooth 78 out of the position of the fixed tooth 77. Since the worm gear combination of the first worm 73 and the first worm wheel 72 has self-locking properties, the top telescopic frame 4 can be stably maintained vertically with the supporting main frame 3. The pin connection structure 16 of the top telescopic frame 4 is then adjusted to lengthen the distance between the sleeve rod 18 and the slide rod 17 so that the length of the sleeve rod 18 and the slide rod 17 is greater than the length of the hole opener 1. The top telescopic frame 4 is fixed to the wall 00 by the expansion bolt. The hole opener 1 is then fixed and the hole opening operation can be started. By using the various components of the rotating assembly 7, the hole opener 1 can be lifted without manual labor when it is between floors that are too high, when there is no top support, and when multiple holes need to be opened vertically. This also makes the support device more applicable.

[0059] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wall hole opener support device for construction, comprising a support main frame (3) and a hydraulic jack (6), characterized in that: The top of the supporting main frame (3) is connected to a top telescopic frame (4), the bottom of the supporting main frame (3) is fixedly connected to a hydraulic jack (6), a mounting groove (10) is provided inside the supporting main frame (3), a fixing component (9) is slidably engaged on one side of the mounting groove (10), and an adjusting mechanism (8) for adjusting the height of the fixing component (9) is installed inside the mounting groove (10), and a power mechanism is connected to one side of the adjusting mechanism (8); The regulating mechanism (8) comprises a chain (81), a second worm (82), a rotating shaft (83), a first sprocket (84), a second worm (85), a second sprocket (86) and a spline sliding shaft (87), wherein both ends of the second worm (82) are rotatably connected to the side walls of the supporting main frame (3) at the bottom of the mounting groove (10), the second worm (82) is connected to the power mechanism, and a rotating shaft (83) is provided above the second worm (82), and the rotating shaft (83) and the second worm (82) are perpendicular to each other, the rotating shaft (83) is rotatably connected to the other two side walls of the supporting main frame (3) at the bottom of the mounting groove (10), a second worm (85) is fixed to the middle of the rotating shaft (83), and the bottom of the second worm (85) is engaged with the second worm (82). , the second worm wheel (85) is symmetrically mounted with a first sprocket (84) on both sides, the first sprocket (84) is fixedly connected to the rotating shaft (83), the two ends of the spline sliding shaft (87) are inserted into the side wall of the supporting main frame (3), and the spline sliding shaft (87) and the rotating shaft (83) are connected to the same pair of side walls of the supporting main frame (3), the two ends of the spline sliding shaft (87) are symmetrically spline-connected with the second sprocket (86), the two second sprockets (86) are both rotatably connected to the side wall of the supporting main frame (3) on the side away from each other, the second sprocket (86) is located directly above the first sprocket (84), and a chain (81) is connected between the second sprocket (86) and the first sprocket (84) on the same side, and the adjacent sides of the two chains (81) are commonly connected to the fixed component (9); A rotating assembly (7) for rotating the top telescopic frame (4) is provided between the top telescopic frame (4) and the supporting main frame (3); The rotating assembly (7) includes a rotating groove (71), a first worm wheel (72), a first worm (73), a push block (74), a rotating block (75), a sliding groove (76) and a fixed block (79). A rotating groove (71) is provided on a side wall of the top of the supporting main frame (3) adjacent to the fixed assembly (9). A rotating block (75) is installed inside the rotating groove (71). The rotating block (75) is fixed to the bottom of the top telescopic frame (4). The bottom of the rotating block (75) is fixed with a first worm wheel (72). Both ends of the first worm wheel (72) are rotatably connected to the inner wall of the supporting main frame (3). The spline The sliding shaft (87) is sleeved with a first worm (73) on the outside, and fixed blocks (79) are provided on both sides of the first worm (73), and the fixed blocks (79) are fixed to the inner wall of the support main frame (3) inside the installation groove (10), the first worm (73) is rotatably connected between the two fixed blocks (79), and the second sprocket (86) is rotatably connected to the inside of the fixed blocks (79) on the side away from the inner wall of the support main frame (3), and a sliding groove (76) is provided inside the first worm (73), and a sliding clamping assembly for controlling the transmission of power to the rotating assembly (7) is provided inside the sliding groove (76); The sliding clamping assembly includes a fixed tooth (77) and a clamping tooth (78); a cylindrical portion is provided in the middle of the spline sliding shaft (87); the cylindrical portion is not provided with a spline; the clamping tooth (78) is fixed to the side wall of the spline sliding shaft (87); the fixed tooth (77) is fixed to the side wall of the sliding groove (76) inside the first worm (73); and the clamping tooth (78) and the fixed tooth (77) are installed in a staggered manner with respect to each other.

2. A wall hole opener support device for construction according to claim 1, characterized in that: The fixing assembly (9) comprises a square tube (91), a rotating fixing rod (92) and a cross slider (93). The two cross sliders (93) are both slidably connected to one side of the mounting groove (10), and the upper and lower ends of the cross sliders (93) are fixedly connected to the chain (81). One side of the cross sliders (93) is fixedly connected to the square tube (91), and the top of the square tube (91) is threadedly connected to the rotating fixing rod (92).

3. A wall hole opener support device for construction according to claim 1 or 2, characterized in that: The power mechanism is configured as a crank (14) or a drive motor, and the output shaft of the crank (14) or the drive motor is fixedly connected to one end of the second worm (82).

4. A wall hole opener support device for construction according to claim 3, characterized in that: A bottom telescopic frame (5) is fixed to the bottom of the hydraulic jack (6), and both the top telescopic frame (4) and the bottom telescopic frame (5) include a sleeve rod (18), a slide rod (17) is slidably connected inside the sleeve rod (18), and both the top telescopic frame (4) and the bottom telescopic frame (5) are provided with a latch connection structure (16).

5. A wall hole opener support device for construction according to claim 4, characterized in that: The latch connection structure (16) comprises a socket provided on the side walls of the sleeve rod (18) and the slide rod (17), and a latch is inserted into the sockets of the sleeve rod (18) and the slide rod (17).

6. A wall hole opener support device for construction according to claim 5, characterized in that: The tops of the slide bars (17) of the top telescopic frame (4) and the bottom telescopic frame (5) are both welded with support fixing plates (19), and the side of the support fixing plates (19) away from the connection is provided with anti-slip spikes.

7. A wall hole opener support device for construction according to claim 6, characterized in that: A receiving groove (13) is provided on one side of the bottom of the top telescopic frame (4) close to the rotating groove (71), and a top block (12) is rotatably connected inside the receiving groove (13).

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