Building repairing tool

Abstract

The invention discloses a building repairing tool which comprises a bottom plate, a lifting rod fixing device and a supporting device. A stand column is fixed to the bottom plate, a first screw rod is installed in the stand column, a lifting rod is arranged in the stand column in a sliding mode, and the lifting rod is in threaded connection with the first screw rod. The lifting rod fixing device is installed on the stand column, the lifting rod fixing device comprises a pair of clamping tooth grooves, the clamping tooth grooves are formed in the two sides of the lifting rod, and a pair of sliding rails are formed in the end, away from the bottom plate, of the stand column; and the supporting device is installed on the bottom plate, the supporting device comprises two pairs of fixing rings, the two pairs of fixing rings are in threaded connection with second screw rods, and supporting bases are rotationally arranged at the bottom ends of the second screw rods. The adjustable supporting device is arranged, the balance of the equipment can be adjusted according to the uneven degree of the construction ground, and therefore the stability of the equipment in the supporting process is effectively improved.

Description

Technical Field

[0001] The invention belongs to the technical field of building repair, and in particular relates to a building repair tool. Background Art

[0002] Building restoration refers to the restoration and protection of damaged or degraded buildings through a series of technical means and methods to restore them to their original state or improve their condition. During the restoration process of a building, support work is required to ensure the stability and safety of the building.

[0003] Due to the uneven ground during building repair, operators are required to level the ground before installing the support device. If the ground is uneven, the base of the support device will be unstable during installation. An unstable base of the support device will cause the entire support device to be at risk of tilting during the support process, which may eventually lead to the risk of secondary damage during the building repair process.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0005] The object of the present invention is to provide a building repair tool, which can solve the problem that the base of the existing building repair support device is not fixed stably.

[0006] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0007] A building repair tool, comprising: a base plate, a lifting rod fixing device, and a supporting device;

[0008] A column is fixed on the bottom plate, a first screw is installed in the column, a lifting rod is slidably arranged in the column, the lifting rod is threadedly connected to the first screw, a plurality of fixing rods are fixed on the lifting rod, a support head is slidably arranged on the plurality of fixing rods, and a first spring is installed between the support head and the lifting rod on the plurality of fixing rods;

[0009] The lifting rod fixing device is installed on the column, and the lifting rod fixing device includes a pair of tooth grooves, and the tooth grooves are cut on both sides of the lifting rod. A pair of slide rails are cut at one end of the column away from the bottom plate, and a slider is slidably arranged in the pair of slide rails. The slider is arranged at one end outside the slide rail and fixed with a tooth, and the pair of teeth are clamped on the pair of tooth grooves. A second spring is installed between the slider and the inner wall of the slide rail;

[0010] The cam is provided with a second screw threadedly connected to the second end of the fixing ring, the second screw being rotatably provided with a support base, the support base being provided with a rotating groove, the second screw being provided with a rotating head fixed at one end in the rotating groove, a control rod being inserted in the second screw, the control rod being provided with an elliptical control member fixed at one end in the rotating head, a pair of push rods being inserted in the rotating head, a control head being fixed at one end in the rotating head, the control head and the elliptical control member being slidably arranged between the control head and the elliptical control member, the push rod being provided with a plug fixed at one end outside the rotating head, a plurality of pairs of slots being evenly drilled on the inner wall of the rotating groove, a pair of the plugs being stuck in a pair of slots, a limiting slot being drilled at the top end of the second screw, a fixing head being fixed at one end in the limiting slot, a rotating rod being inserted in the fixed head, and a second handle being fixed at one end of the rotating rod being provided outside the second screw.

[0011] In one or more embodiments of the present invention, a first rotating shaft is inserted into the column, the first rotating shaft is arranged inside the column and is fixed with a worm, the first rotating shaft is used to drive the worm to rotate, the worm is used to drive the worm wheel to rotate, and the first rotating shaft is arranged at one end outside the column and is fixed with a first handle, the first handle is used to drive the first rotating shaft to rotate, so that the first rotating shaft drives the worm to rotate.

[0012] In one or more embodiments of the present invention, a worm wheel is fixed on the first screw, and the worm wheel and the worm are meshed with each other. The worm is driven to rotate, and the worm drives the worm wheel to rotate, thereby rotating the first screw. The rotation of the first screw drives the lifting rod to move up and down.

[0013] In one or more embodiments of the present invention, a pair of spirit levels are installed on the base plate, and the pair of spirit levels are respectively installed on two adjacent edges of the base plate, and are used for calibration to adjust the level of the base plate. Two pairs of universal wheels are installed at the bottom of the base plate, and the universal wheels facilitate the movement of the device when no supporting operation is performed.

[0014] In one or more embodiments of the present invention, a first connecting rod is fixed to one end of a pair of sliders away from the lifting rod, and a second connecting rod is inserted into the slide rail. The second connecting rod pulls the slider by pulling the first connecting rod, and the slider drives the latching tooth to move out of the latching tooth groove. A limit head is fixed to one end of the second connecting rod outside the slide rail, and the limit head is used to pull the second connecting rod outward.

[0015] In one or more embodiments of the present invention, a second shaft is fixed to one end of the first connecting rod away from the slider, a sliding groove is fixed to one end of the second connecting rod arranged in the slide rail, the second shaft slides in the sliding groove, the second connecting rod drives the slider to move outward of the slide rail through the first connecting rod, and the slider drives the latching tooth away from the latching tooth groove. When the second connecting rod is completely moved out of the slide rail, the second shaft is rotated 90 degrees as the axis, and then the second connecting rod is moved to make the second shaft slide from one end of the sliding groove to the other end, so that the second connecting rod clamps the first connecting rod. At this time, since the latching tooth is not stuck in the latching tooth groove, the lifting rod can be retracted into the column.

[0016] In one or more embodiments of the present invention, an installation groove is excavated at the bottom of the support base, and the installation groove is used to install an anti-slip pad. An anti-slip pad is installed in the installation groove, and the anti-slip pad is arranged to be replaceable. The bottom of the anti-slip pad can be selected to be anti-slip rubber or anti-slip spikes according to the time conditions of the construction ground.

[0017] In one or more embodiments of the present invention, a third spring is installed on the push rod between the plug and the inner wall of the rotating head. The elastic force of the third spring is used to push the plug outward from the rotating head so that the plug is stuck in the slot. The control head is installed with a pulley in the elliptical control member. The pulley is set to achieve a sliding setting between the control head and the elliptical control member.

[0018] In one or more embodiments of the present invention, a groove is bored on the fixed head, a block is fixed at the bottom end of the rotating rod, and the block is stuck in the groove. When the rotating rod rotates, the control rod is driven to rotate.

[0019] In one or more embodiments of the present invention, a second limit block is fixed in the limit groove, and a first limit block is fixed on the rotating rod. By setting the first limit block and the second limit block, after the rotating rod is inserted into the limit groove, it is rotated ninety degrees and then the first limit block is stuck in the second limit block once, so that the rotation of the rotating rod drives the second screw rod to rotate, thereby causing the second screw rod to move up and down.

[0020] Compared with the prior art, the present invention can adjust the balance of the equipment according to the unevenness of the construction ground by providing an adjustable supporting device, thereby effectively improving the stability of the device during the supporting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A three-dimensional diagram of a building repair tool in one embodiment of the present invention;

[0023] Figure 2 is a cross-sectional view of a building repair tool in one embodiment of the present invention;

[0024] Figure 3 for Figure 2 The schematic diagram of the structure shown at A in the middle;

[0025] Figure 4 This is a schematic diagram of the internal structure of a column in one embodiment of the present invention;

[0026] Figure 5 A three-dimensional diagram of a lifting rod in one embodiment of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the latch teeth and the slider in one embodiment of the present invention;

[0028] Figure 7 A schematic diagram of the connection between the first connecting rod and the second connecting rod in another state in one embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of a second screw rod and a support base in one embodiment of the present invention;

[0030] Fig. 9 for Figure 8 The schematic diagram of the structure shown at B in the figure;

[0031] Fig.10 It is a schematic diagram of the structure of the second screw rod and the control rod in one embodiment of the present invention;

[0032] Fig.11 for Fig.10 The schematic diagram of the structure shown at C in the middle;

[0033] Fig.12 for Fig.10 The schematic diagram of the structure shown at D in the figure;

[0034] Fig.13 1 is a diagram showing the positional relationship between the first limiting block and the second limiting block in one embodiment of the present invention.

[0035] Description of main reference numerals:

[0036] 1-bottom plate, 101-column, 102-first screw, 103-worm gear, 104-first rotating shaft, 105-worm, 106-first handle, 107-lifting rod, 108-fixing rod, 109-support head, 110-first spring, 111-level, 112-universal wheel, 2-lifting rod fixing device, 201-grip groove, 202-slide rail, 203-grip, 204-slider, 205-first connecting rod, 206-second connecting rod, 207-second spring, 208-limiting head, 209-slide groove, 210-second rotating shaft, 3 -support device, 301-fixing ring, 302-second screw, 303-support base, 304-installing groove, 305-anti-slip pad, 306-rotation groove, 307-rotation head, 308-control rod, 309-fixed head, 310-card slot, 311-rotation rod, 312-card block, 313-first limit block, 314-second handle, 315-elliptical control piece, 316-push rod, 317-control head, 318-pulley, 319-plug, 320-slot, 321-third spring, 322-limiting groove, 323-second limit block. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 should fall within the scope of protection of the present invention.

[0038] like Figures 1 to 13 As shown, a building repair tool in one embodiment of the present invention includes: a base plate 1, a lifting rod fixing device 2, and a supporting device 3.

[0039] like Figures 1 to 5 As shown, a column 101 is fixed on the base plate 1, and the column 101 plays a major supporting role. A first screw rod 102 is installed in the column 101, and the first screw rod 102 is used to control the lifting and lowering of a lifting rod 107. The lifting rod 107 is driven to lift and lower after the first screw rod 102 is rotated. A lifting rod 107 is slidably arranged in the column 101, and the lifting rod 107 drives the support head 109 to lift and lower, so as to support the building. The lifting rod 107 is threadedly connected to the first screw rod 102, and the threaded connection is used so that the lifting rod 107 is driven to move up and down when the first screw rod 102 rotates. A plurality of fixing rods 108 are fixed on the lifting rod 107, and the fixing rods 108 are used to install the support head 109.

[0040] like Figures 1 to 5As shown, a plurality of fixed rods 108 are slidably provided with support heads 109, which are used to abut against the bottom of the building, thereby starting to support the building. A first spring 110 is installed between the support heads 109 and the lifting rods 107 on the plurality of fixed rods 108, and the first spring 110 plays a certain buffering role. A first rotating shaft 104 is inserted into the column 101, and the first rotating shaft 104 is provided in the column 101 and fixed with a worm 105, and the first rotating shaft 104 is used to drive the worm 105 to rotate, and the worm 105 is used to drive the worm wheel 103 to rotate, and a first handle 106 is fixed at one end of the first rotating shaft 104 provided outside the column 101, and the first handle 106 is used to drive the first rotating shaft 104 to rotate, so that the first rotating shaft 104 drives the worm 105 to rotate.

[0041] like Figures 1 to 5 As shown, a worm wheel 103 is fixed on the first screw 102, and the worm wheel 103 and the worm 105 are meshed with each other. By driving the worm 105 to rotate, the worm 105 drives the worm wheel 103 to rotate, thereby rotating the first screw 102, and the rotation of the first screw 102 drives the lifting rod 107 to move up and down. A pair of level gauges 111 are installed on the base plate 1, and the pair of level gauges 111 are respectively installed on two adjacent sides of the base plate 1, and are used for calibration when adjusting the level of the base plate 1. Two pairs of universal wheels 112 are installed at the bottom of the base plate 1, and the universal wheels 112 facilitate the movement of the device when it is not supporting.

[0042] like Figures 2 to 7 As shown, the lifting rod fixing device 2 is installed on the column 101, and the lifting rod fixing device 2 includes a pair of latching grooves 201, which are excavated on both sides of the lifting rod 107. The latching teeth 203 are latched on the latching grooves 201, thereby preventing the lifting rod 107 from sliding down. A pair of slide rails 202 are excavated at one end of the column 101 away from the bottom plate 1, and a slider 204 is slidably arranged in the pair of slide rails 202. The slider 204 drives the latching teeth 203 to slide along the direction of the slide rails 202. When the lifting rod 107 is raised upward, the latching grooves 201 push the latching teeth 203 along the sliding track of the slider 204 in the slide rail 202, and move obliquely upward.

[0043] like Figures 2 to 7As shown, by setting the inclined slide rail 202, when the device is in the supporting state, the latching teeth 203 support the lifting rod 107, and absorb the downward pressure from the lifting rod 107, and distribute the pressure obliquely to the inclined wall of the slide rail 202, thereby effectively improving the supporting force. The slider 204 is provided at one end outside the slide rail 202 and is fixed with latching teeth 203, and a pair of latching teeth 203 are clamped on a pair of latching tooth grooves 201, and the lifting rod 107 is stabilized by the latching teeth 203 being clamped on the latching tooth grooves 201. A second spring 207 is installed between the slider 204 and the inner wall of the slide rail 202, and the elastic force of the second spring 207 is used to push the latching teeth 203 into the latching tooth grooves 201.

[0044] like Figures 2 to 7 As shown, a pair of sliders 204 are fixed with a first connecting rod 205 at one end away from the lifting rod 107, and a second connecting rod 206 is inserted on the slide rail 202. The second connecting rod 206 pulls the slider 204 by pulling the first connecting rod 205. The slider 204 drives the latching tooth 203 to move out of the latching tooth groove 201. The second connecting rod 206 is fixed with a limiting head 208 at one end outside the slide rail 202. The limiting head 208 is used to pull the second connecting rod 206 outward.

[0045] like Figures 2 to 7 As shown, a second shaft 210 is fixed to one end of the first connecting rod 205 away from the slider 204, and a slide groove 209 is fixed to one end of the second connecting rod 206 arranged in the slide rail 202. The second shaft 210 slides in the slide groove 209, and the second connecting rod 206 drives the slider 204 to move outward from the slide rail 202 through the first connecting rod 205, and the slider 204 drives the latching tooth 203 away from the latching tooth groove 201. When the second connecting rod 206 is completely moved out of the slide rail 202, the second connecting rod 206 is rotated 90 degrees with the second shaft 210 as the axis, and then the second connecting rod 206 is moved to make the second shaft 210 slide from one end of the slide groove 209 to the other end, so that the second connecting rod 206 clamps the first connecting rod 205. At this time, since the latching tooth 203 is not stuck in the latching tooth groove 201, the lifting rod 107 can be retracted into the column 101.

[0046] like Figure 1 and Figure 8As shown, the support device 3 is installed on the bottom plate 1, and the support device 3 includes two pairs of fixing rings 301, and the second screw rods 302 are threadedly connected to the two pairs of fixing rings 301. By driving the second screw rods 302 to rotate on the fixing rings 301, the second screw rods 302 can be lifted up and down, and the levelness of the bottom plate 1 can be adjusted by adjusting the height of each second screw rod 302 in conjunction with the level 111. A support base 303 is rotatably provided at the bottom end of the second screw rod 302, and the support base 303 is used to support on the ground to play a supporting role. The second screw rod 302 is rotatably provided with the second screw rod 302, so that when the support base 303 supports the ground, the second screw rod 302 can also be rotated to adjust the height of the bottom plate 1.

[0047] like Figures 8 to 13 As shown, a rotation groove 306 is cut on the support base 303, and a rotation head 307 is fixed at one end of the second screw 302 disposed in the rotation groove 306. The rotation head 307 is disposed in the rotation groove 306, so that the second screw 302 and the support base 303 are rotatably connected. A control rod 308 is inserted into the second screw 302, and an elliptical control member 315 is fixed at one end of the control rod 308 disposed in the rotation head 307. The control rod 308 is used to drive the elliptical control member 315 to rotate. After the elliptical control member 315 rotates 90 degrees, the control head 317 moves from the long axis side of the elliptical control member 315 to the short axis side, or from the short axis side to the long axis side, so as to pull a pair of push rods 316 closer to or away from the direction of the elliptical control member 315.

[0048] like Figures 8 to 13 As shown, a pair of push rods 316 are inserted into the rotating head 307, and the push rods 316 are used to drive the plug 319 to move out of the slot 320 or insert into the slot 320. A control head 317 is fixed to one end of the pair of push rods 316 disposed in the rotating head 307, and the control head 317 is slidably disposed between the control head 317 and the elliptical control member 315. The control head 317 is used to pull the push rods 316 toward the elliptical control member 315, so that the push rods 316 drive the plug 319 to move. A plug 319 is fixed to one end of the push rod 316 outside the rotating head 307, and a plurality of pairs of slots 320 are evenly drilled on the inner wall of the rotating groove 306. A pair of plugs 319 are stuck in a pair of slots 320. The plugs 319 are stuck in the slots 320 to fix the second screw rod 302 and the support base 303, so that the second screw rod 302 cannot rotate relative to the support base 303. When the support base 303 is supported on the ground, the second screw rod 302 is fixed to prevent the second screw rod 302 from rotating, thereby preventing the second screw rod 302 from changing the supporting height of the base plate 1, thereby stabilizing the horizontality of the base plate 1 and improving the stability of the support of the device.

[0049] like Figures 8 to 13As shown, a limiting groove 322 is cut at the top of the second screw rod 302, and a fixed head 309 is fixed to one end of the control rod 308 disposed in the limiting groove 322, and a rotating rod 311 is inserted into the fixed head 309, and the rotating rod 311 is used to drive the control rod 308 and the second screw rod 302 to rotate. A second handle 314 is fixed to one end of the rotating rod 311 disposed outside the second screw rod 302, and the second handle 314 is used to drive the rotating rod 311 to rotate.

[0050] like Figures 8 to 13 As shown, a mounting groove 304 is excavated at the bottom of the support base 303, and the mounting groove 304 is used to install an anti-skid pad 305. The anti-skid pad 305 is installed in the mounting groove 304. The anti-skid pad 305 is set to be replaceable. According to the actual situation of the construction ground, the bottom of the anti-skid pad 305 can be selected to be anti-skid rubber or anti-skid spikes. The push rod 316 is provided between the plug 319 and the inner wall of the rotating head 307. The elastic force of the third spring 321 is used to push the plug 319 out of the rotating head 307 so that the plug 319 is stuck in the slot 320. The control head 317 is provided in the elliptical control member 315 and is installed with a pulley 318. The pulley 318 is provided to achieve a sliding setting between the control head 317 and the elliptical control member 315.

[0051] like Figures 8 to 13 As shown, a slot 310 is bored on the fixed head 309, and a block 312 is fixed at the bottom of the rotating rod 311. The block 312 is stuck in the slot 310. The block 312 is stuck in the slot 310, so that the rotating rod 311 drives the control rod 308 to rotate. A second limit block 323 is fixed in the limit slot 322, and a first limit block 313 is fixed on the rotating rod 311. By setting the first limit block 313 and the second limit block 323, after the rotating rod 311 is inserted into the limit slot 322, the first limit block 313 is stuck in the second limit block 323 after rotating ninety degrees, so that the rotation of the rotating rod 311 drives the second screw rod 302 to rotate, so that the second screw rod 302 moves up and down.

[0052] Working principle: Move the device to the bottom of the position that needs to be supported, first support the bottom plate 1 through the lifting rod fixing device 2, and adjust the horizontality of the bottom plate 1 to ensure stability during the support process, insert the rotating rod 311 into the limiting groove 322, and clamp the block 312 in the clamping groove 310. When the rotating rod 311 is inserted, the position relationship between the first limiting block 313 and the second limiting block 323 is as follows: Fig.13As shown, the second handle 314 then drives the rotating rod 311 to rotate, the rotating rod 311 first drives the control rod 308 to rotate, the control rod 308 drives the elliptical control member 315 to rotate, so that the control head 317 moves from the long axis side of the elliptical control member 315 to the short axis side, thereby pulling a pair of push rods 316 toward the direction of the elliptical control member 315, and the push rods 316 drive the plug 319 to be pulled out of the slot 320;

[0053] When the rotating rod 311 rotates ninety degrees, the plug 319 is pulled out of the slot 320, and the second screw rod 302 rotates relative to the support base 303, and the first limit block 313 is stuck on one side of the second limit block 323. At this time, the rotating rod 311 continues to be rotated, and the rotating rod 311 drives the second screw rod 302 to rotate on the fixing ring 301. The second screw rod 302 first drives the support base 303 to move downward so that the support base 303 is supported on the ground. After the support base 303 is supported on the ground, the second screw rod 302 pushes the bottom plate 1 upward. After adjusting one second screw rod 302, the rotating rod 311 is rotated ninety degrees, then pulled out from the limit slot 322, and inserted into the remaining second screw rod 302, and the levelness of the bottom plate 1 is adjusted in conjunction with the level meter 111.

[0054] When the rotating rod 311 rotates 90 degrees, the rotating rod 311 drives the control rod 308 to rotate. At this time, the control head 317 moves from the elliptical control member 315 from the short axis side to the long axis side, pushing the pair of push rods 316 toward the plug 319. At the same time, the elastic force of the third spring 321 pushes the plug 319 to move out of the rotating head 307, and the plug 319 is re-stuck in the slot 320, locking the second screw 302 and the support base 303 together;

[0055] Then, by rotating the first handle 106, the first handle 106 drives the worm 105 to rotate through the first rotating shaft 104, and the worm 105 drives the worm wheel 103 to rotate. The worm wheel 103 drives the first screw rod 102 to rotate, and drives the lifting rod 107 to move upward. The lifting rod 107 drives the supporting head 109 to move upward to the bottom end of the building to be supported. During the upward movement of the lifting rod 107, the latching tooth 203 is pushed to move obliquely upward along the sliding direction of the slider 204 in the slide rail 202. After the lifting rod 107 moves, the elastic force of the second spring 207 pushes the slider 204, and the slider 204 drives the latching tooth 203 to be stuck in the latching tooth groove 201, thereby fixing the lifting rod 107;

[0056] When the supporting work is completed and the device needs to be folded up, the limit head 208 is first pulled outward, and the limit head 208 pulls the slider 204 through the second connecting rod 206 and the first connecting rod 205, and the slider 204 drives the latching tooth 203 to move out of the slide rail 202. When the second connecting rod 206 is completely moved out of the slide rail 202, the second connecting rod 206 is rotated 90 degrees with the second rotating shaft 210 as the axis, and then the second connecting rod 206 is moved to make the second rotating shaft 210 slide from one end of the slide groove 209 to the other end, so that the second connecting rod 206 clamps the first connecting rod 205. At this time, since the latching tooth 203 is not stuck in the latching tooth groove 201, the lifting rod 107 can be retracted into the column 101.

[0057] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0058] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A building repair tool, characterized in that: include: A bottom plate, a column is fixed on the bottom plate, a first screw is installed in the column, a lifting rod is slidably arranged in the column, the lifting rod is threadedly connected to the first screw, a plurality of fixing rods are fixed on the lifting rod, a support head is slidably arranged on the plurality of fixing rods, and a first spring is installed on the plurality of fixing rods between the support head and the lifting rod; A lifting rod fixing device is installed on the column, and the lifting rod fixing device includes a pair of tooth grooves, the tooth grooves are cut on both sides of the lifting rod, and a pair of slide rails are cut on one end of the column away from the bottom plate, and a slider is slidably arranged in the pair of slide rails, and a tooth is fixed on one end of the slider outside the slide rail, and the pair of teeth is clamped on the pair of tooth grooves, and a second spring is installed between the slider and the inner wall of the slide rail; The support device is installed on the bottom plate, and the support device comprises two pairs of fixing rings, and the two pairs of fixing rings are both threadedly connected with the second screw, and the bottom of the second screw is rotatably provided with a supporting base, and a rotating groove is chiseled on the support base, and a rotating head is fixed on one end of the second screw arranged in the rotating groove, and a control rod is inserted in the second screw, and an elliptical control piece is fixed on one end of the control rod arranged in the rotating head, and a pair of push rods are inserted in the rotating head, and a control head is fixed on one end of a pair of push rods arranged in the rotating head, and a plug is slidingly arranged between the control head and the elliptical control piece, and a plurality of pairs of slots are evenly chiseled on the inner wall of the rotating groove, and a pair of the plugs are stuck in a pair of slots, and a limiting groove is chiseled on the top of the second screw, and a fixing head is fixed on one end of the control rod arranged in the limiting groove, and a rotating rod is inserted on the fixed head, and a second handle is fixed on one end of the rotating rod arranged outside the second screw.

2. A building repair tool according to claim 1, characterized in that: A first rotating shaft is inserted into the column, a worm is fixed to the first rotating shaft arranged inside the column, and a first handle is fixed to one end of the first rotating shaft arranged outside the column.

3. A building repair tool according to claim 2, characterized in that: A worm wheel is fixed on the first screw rod, and the worm wheel and the worm rod are meshed with each other.

4. A building repair tool according to claim 1, characterized in that: A pair of levels are installed on the base plate, and two pairs of universal wheels are installed at the bottom of the base plate.

5. A building repair tool according to claim 1, characterized in that: A first connecting rod is fixed to one end of a pair of sliding blocks away from the lifting rod, a second connecting rod is inserted on the slide rail, and a limiting head is fixed to one end of the second connecting rod arranged outside the slide rail.

6. A building repair tool according to claim 5, characterized in that: A second rotating shaft is fixed to one end of the first connecting rod away from the sliding block, a sliding groove is fixed to one end of the second connecting rod arranged in the sliding rail, and the second rotating shaft slides in the sliding groove.

7. A building repair tool according to claim 1, characterized in that: A mounting groove is formed at the bottom of the support base, and a non-slip pad is installed in the mounting groove.

8. A building repair tool according to claim 1, characterized in that: The push rod is provided with a third spring between the plug and the inner wall of the rotating head, and the control head is provided in the elliptical control member and is provided with a pulley.

9. A building repair tool according to claim 1, characterized in that: A slot is bored on the fixed head, a block is fixed at the bottom end of the rotating rod, and the block is stuck in the slot.

10. A building repair tool according to claim 9, characterized in that: A second limiting block is fixed in the limiting groove, and a first limiting block is fixed on the rotating rod.

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