Angled base bolt preformed hole setting device and construction method

Abstract

The invention discloses an angled base bolt preformed hole setting device and a construction method, and belongs to the technical field of preformed hole construction. The angled base bolt preformed hole setting device comprises a reinforcement cage framework used for fixing steel needle bundles; the reinforcement cage framework is composed of a plurality of steel bar circular rings and a plurality of plain round steel bars which are equal in length and are arranged at equal intervals, the steel bar circular rings are arranged in the length direction of the plain round steel bars, and the steel bar circular rings are symmetrically welded to the outer sides of the plain round steel bars; the distance between every two adjacent steel bar circular rings is not larger than 200 mm. According to the invention, the construction of the bolt preformed hole can be quickly completed.

Description

Technical Field

[0001] The invention belongs to the technical field of reserved hole construction, and in particular relates to an angled base bolt reserved hole setting device and a construction method. Background Art

[0002] With the rapid development of the national economy, there are more and more mechanical equipment in modern industrial buildings, and the structure is becoming more and more complex. Correspondingly, the connection requirements between the equipment and the concrete base are becoming higher and higher. The connection bridge between large equipment and the concrete foundation is mainly bolts. Therefore, the connection strength and quality of the bolts are the key to ensure the normal operation of various equipment. At present, the number of base bolts of large mechanical equipment is large, the angles are complex, and the precision requirements are high. The construction difficulty of the bolt reserved holes is also increasing, because any deviation in the direction and position of the reserved holes will directly affect the normal installation and commissioning of the equipment.

[0003] Usually, a square or round wood with a large upper opening and a small lower opening is hung on the foundation formwork, and the core formwork is fixed with steel bars at the top and bottom. The wooden core formwork is rotated after the initial setting of the base concrete, and is pried out with the help of a pressure rod or a lever before the final setting of the concrete. The disadvantage of this method is that the plug material and the concrete hole wall will be damaged if the wooden core formwork is not pulled out in time, and the wood consumption is large. After the reserved hole with a large upper opening and a small lower opening is grouting, an inverted tetrahedron is formed, which will reduce the pull-out resistance of the bolt and affect the normal use of the upper equipment. A method that can avoid damaging the reserved hole wall is now proposed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a device and a construction method for setting angled base bolt pre-holes, which solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a device and construction method for setting angled base bolt reserved holes, including a steel cage skeleton for fixing a steel needle bundle; and a steel needle bundle core mold for positioning the reserved holes: the steel cage skeleton is composed of several steel rings and several smooth round steel bars of equal length and equal spacing, and several steel rings are arranged along the length direction of the smooth round steel bars. Multiple steel rings are symmetrically welded to the outside of multiple smooth round steel bars, and the spacing between adjacent steel rings is not more than 200mm.

[0006] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0007] Further technical solution: the steel cage skeleton is arranged in the foundation steel mesh, the foundation steel mesh is arranged in the concrete foundation, the position and angle of the steel cage skeleton are determined according to the requirements of the reserved holes, and steel bars are respectively welded on the plurality of plain round steel bars, and the other ends of the plurality of steel bars are respectively welded to the foundation steel mesh.

[0008] Further technical solution: The steel needle bundle core mold includes a steel needle bundle and lead wire. The steel needle bundle is a pull-out plug body formed by a number of steel needles of the same length and different diameters tied together by several lead wires. The position and number of the lead wires are determined according to the steel rings of the steel cage skeleton. Both ends of each lead wire on the steel needle bundle have excess length, and the excess length at both ends is buckled to the steel rings at corresponding positions.

[0009] Further technical solution: the diameter of the steel needle bundle is consistent with the inner diameter of the steel cage frame, the total length of the steel needle bundle is 150-180mm larger than the steel cage frame, the steel needles of the steel needle bundle are solid stainless steel, with a diameter range of 5-8mm, tapered at both ends, and the tapered length is 30mm.

[0010] Further technical solution: the steel needle bundle is in the steel cage frame, the lower end of the steel needle bundle extends out of the steel cage frame by 30 mm, and the upper end extends out of the steel cage frame by 120-150 mm.

[0011] A further technical solution: includes a frame and a positioning assembly for assembling a steel cage skeleton, the positioning assembly includes a support plate, a sliding sleeve, a main shaft, a cam, a connecting plate and a guide rod, a plurality of the support plates are symmetrically slidably connected in the grooves of the frame, a plurality of the sliding sleeves are slidably connected to the support plate, the sliding sleeve is used to position the steel ring, the main shaft is rotatably connected to the frame, the cam is fixedly connected to the main shaft, the cam is used to push the support plate to slide out of the groove of the frame, the connecting plate is fixedly connected to the support plate, the connecting plate is slidably connected to the guide rod, a spring is sleeved on the guide rod, one end of the spring is fixedly connected to the connecting plate, the other end of the spring is fixedly connected to the positioning block, the positioning block is fixedly connected to the frame, the frame is fixedly connected to the base, the main shaft is connected to the connecting assembly, and the frame is connected to the limit assembly.

[0012] Further technical solution: The connecting assembly includes a cam B, a disc, a slide plate and an insert cylinder, the cam B is fixedly connected to the bottom of the main shaft, the disc is fixedly connected to the slide plate, the slide plate is fixedly connected with an insert cylinder, the insert cylinder is used to position the smooth round steel bars, the slide plate is slidably connected to the slide rod, the slide rod is fixedly connected to the connecting block, the connecting block is fixedly connected to the base, a return spring is sleeved on the slide rod, one end of the return spring is fixedly connected to the slide plate, and the other end of the return spring is fixedly connected to the connecting block.

[0013] Further technical solution: the frame is rotatably connected to a shaft disk A and a shaft disk B, with a certain distance between the shaft disk A and the shaft disk B. A plurality of chucks are fixedly connected to the shaft disk A and the shaft disk B, respectively. The plurality of chucks are staggered with each other, and two adjacent chucks on the upper and lower sides can form a complete cylinder. A bevel gear A is fixedly connected to the shaft disk A and the shaft disk B, respectively. The two bevel gears A are meshed with the bevel gear B, and the bevel gear B is fixedly connected to the output shaft of the motor, and the motor is rotatably connected to the main shaft.

[0014] Further technical solution: The limiting assembly includes a sleeve, a screw rod, a turntable and a slide cylinder. The sleeve is fixedly connected to the top of the frame, the screw rod is fixedly connected to the main shaft, the screw rod is rotatably connected to the sleeve, the slide cylinder is threadedly connected to the screw rod, the slide cylinder is slidably connected to the sleeve, the turntable is fixedly connected to the screw rod, the slide cylinder is symmetrically hinged with a pull rod, the other end of the pull rod is hinged to the clamp rod, one end of the clamp rod is hinged to the sleeve, the other end of the clamp rod is fixedly connected with an arc plate A, the arc plate A is symmetrically fixedly connected with a rod, the rod is slidably connected with an arc plate B, the arc plate B is fixedly connected with a plurality of guide plates, the guide plates are used for slidingly guiding the steel bars, a spring A is sleeved on the rod, one end of the spring A is fixedly connected to the arc plate A, and the other end of the spring A is fixedly connected to the arc plate B.

[0015] Beneficial Effects

[0016] The present invention provides a device and a construction method for setting angled base bolt pre-holes, which have the following beneficial effects compared with the prior art:

[0017] According to the specifications and directions of the equipment base bolts, the size and angle of the reserved holes are determined on the concrete foundation, and the steel cage skeleton is designed and manufactured according to the size of the reserved holes; the steel needle bundle plug is manufactured according to the size of the steel cage skeleton, and the diameter of the steel needle bundle is consistent with the inner diameter of the steel cage skeleton, and then several lead wires are tied along the length direction of the steel needle bundle. The number and position of the lead wires are matched according to the steel bar rings on the steel cage skeleton, and extra length is left at both ends of each lead wire. In the process of tying the foundation steel mesh, the steel cage skeleton is placed according to the position of the bolt reserved holes. The direction of the steel cage skeleton is consistent with the angle of the bolt reserved holes. The steel cage skeleton is connected to the foundation steel mesh through steel bars. One end of the steel bar is welded to the steel cage skeleton, and the other end is welded to the steel cage skeleton. Weld the foundation steel mesh at the end, bury the steel cage frame in the foundation steel mesh, and after the steel cage frame is fixed, put the steel needle bundle into the steel cage frame. At the same time, the excess length of each lead wire at both ends of the steel needle bundle must be firmly buckled on the steel ring at the corresponding position of the steel cage frame. Then check the position, elevation and angle of the steel needle bundle plug, pour concrete around the steel cage frame, and vibrate along the length direction of the steel cage frame. When the concrete is initially solidified and reaches a certain strength, before final solidification, pull out the steel needles in the hole from the middle to the surrounding areas to form a reserved hole, clean the concrete on its surface in time and store it properly. After the concrete has finally solidified, clean the debris in the reserved hole and cover the hole mouth. The hole mouth covering is a plastic plate or a thin steel plate glued with transparent tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention.

[0020] Figure 3 It is an enlarged schematic diagram of the bottom structure of the present invention.

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the present invention.

[0022] Figure 5 It is an enlarged schematic diagram of the transmission structure of the present invention.

[0023] Figure 6 It is an enlarged schematic diagram of the cross-sectional structure of the present invention.

[0024] Figure 7 It is a schematic diagram of the enlarged structure of the present invention.

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the present invention.

[0026] Fig. 9 It is a schematic diagram of the steel needle bundle structure of the present invention.

[0027] Fig.10This is a schematic diagram of the reserved hole construction of the present invention.

[0028] Notes on the accompanying drawings: steel bar ring 1, plain round steel bar 2, steel bar bar 3, basic steel mesh 4, steel needle bundle 5, lead wire 6, concrete foundation 7, frame 101, positioning assembly 20, connecting assembly 30, limiting assembly 40, stop plate 201, sliding sleeve 202, main shaft 203, cam 204, connecting plate 205, guide rod 206, spring 207, positioning block 208, base 209, cam B301, disc 302, slide plate 3 03, insert cylinder 304, slide rod 305, connecting block 306, return spring 307, shaft disc A308, shaft disc B309, bevel gear A3001, clamp cylinder 3002, bevel gear B3003, motor 3004, sleeve 401, screw rod 402, turntable 403, slide cylinder 404, clamp rod 405, pull rod 406, arc plate A407, rod 408, arc plate B409, spring A4001, guide plate 4002. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of 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 intended to limit the present invention.

[0030] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0031] See also Figure 1 , Figure 2 as well as Figure 3 , provided in one embodiment of the present invention, is a device and a construction method for setting angled base bolt pre-holes, comprising a frame 101, and further comprising:

[0032] Positioning assembly 20, used for assembling the steel cage framework;

[0033] The positioning assembly 20 includes a plate 201, a sleeve 202, a main shaft 203, a cam 204, a connecting plate 205 and a guide rod 206. A plurality of the plates 201 are symmetrically slidably connected in the grooves of the frame 101. A plurality of the sleeves 202 are slidably connected to the plates 201. The sleeves 202 are used to position the steel bar ring 1. The main shaft 203 is rotatably connected to the frame 101. The cam 204 is fixedly connected to the main shaft 203. The cam 204 is used to push the plate 201 to move it out of the groove of the frame 101. The connecting plate 205 is fixedly connected to the abutment plate 201, and the connecting plate 205 is slidably connected to the guide rod 206. A spring 207 is sleeved on the guide rod 206, and one end of the spring 207 is fixedly connected to the connecting plate 205, and the other end of the spring 207 is fixedly connected to the positioning block 208, and the positioning block 208 is fixedly connected to the frame 101, and the frame 101 is fixedly connected to the base 209, the main shaft 203 is connected to the connecting assembly 30, and the frame 101 is connected to the limit assembly 40.

[0034] The user places a plurality of steel bar rings 1 on a plurality of sliding sleeves 202, and pushes the steel bar rings 1 to make them abut against the sliding sleeves 202. At this time, the user rotates the turntable 403, so that the main shaft 203 starts to rotate at a uniform speed. At this time, the cam 204 fixedly connected to the main shaft 203 starts to rotate synchronously, and the cam 204 gradually starts to contact with the abutment plate 201 and starts to push the abutment plate 201. At this time, the connecting plates 205 fixedly connected on both sides of the abutment plate 201 start to move linearly along the connection between them and the guide rod 206, and start to stretch the spring 207 fixedly connected thereto, so that the spring 207 is in a stretched state so that when the cam 204 stops supporting the abutment plate 201, the spring 207 can The cam 204 is able to quickly rebound and reset, thereby pulling the plate 201 into the frame 101. When the central axis of the cam 204 is aligned with the plate 201, the cam 204 completely pushes the plate 201 out of the frame 101, so that the multiple plates 201 slide out of the plate 201 synchronously. At this time, the multiple plates 201 cooperate with each other to tighten the steel ring 1, thereby fixing the steel ring 1 on the frame 101. Subsequently, the user can manually move the sleeve 202 as needed to make it linearly displace along the connection with the sleeve 201, thereby adjusting the positions of the multiple sleeves 202, and then the steel rings 1 fixed on the multiple sleeves 202 can slide synchronously, thereby adjusting the spacing of the steel rings 1 according to usage needs.

[0035] See also Figure 3 Specifically, the connecting assembly 30 includes a cam B301, a disc 302, a slide plate 303 and an insert 304. The cam B301 is fixedly connected to the bottom of the main shaft 203, the disc 302 is fixedly connected to the slide plate 303, and the slide plate 303 is fixedly connected with an insert 304, which is used to position the plain round steel bar 2.

[0036] See also Figure 3 Specifically, the slide plate 303 is slidably connected to the slide rod 305, the slide rod 305 is fixedly connected to the connecting block 306, the connecting block 306 is fixedly connected to the base 209, and a return spring 307 is sleeved on the slide rod 305, one end of the return spring 307 is fixedly connected to the slide plate 303, and the other end of the return spring 307 is fixedly connected to the connecting block 306.

[0037] See also Figure 5 Specifically, the frame 101 is rotatably connected with a shaft disk A308 and a shaft disk B309, and there is a certain distance between the shaft disk A308 and the shaft disk B309. The shaft disk A308 and the shaft disk B309 are respectively fixedly connected with a plurality of chucks 3002, and the plurality of chucks 3002 are staggered with each other, and two adjacent chucks 3002 on the upper and lower sides can form a complete cylinder. The shaft disk A308 and the shaft disk B309 are respectively fixedly connected with a bevel gear A3001, and the two bevel gears A3001 are meshedly connected with the bevel gear B3003, and the bevel gear B3003 is fixedly connected to the output shaft of the motor 3004, and the motor 3004 is rotatably connected with the main shaft 203.

[0038] When the user presses the steel bar ring 1 against the sliding sleeve 202, the user inserts the steel bar ring 1 into the insertion tube 304, and then when the main shaft 203 rotates, the cam B301 fixedly connected thereto is driven to rotate synchronously. Since the connection between the cam B301 and the disc 302 is an arc surface, the cam B301 can gradually stop supporting the disc 302. At this time, the reset spring 307 begins to gradually rebound and reset, and begins to push the slide plate 303 fixedly connected thereto, so that the slide plate 303 begins to move linearly along the connection between it and the slide rod 305, and the insertion tube 304 fixedly connected to the slide plate 303 begins to slide synchronously, so that the light round steel bars 2 inserted in the insertion tube 304 begin to move synchronously, and the multiple light round steel bars 2 begin to move centripetally, and then the multiple light round steel bars 2 are tightly attached to the steel bar ring 1 fixed on the sliding sleeve 202, so that the user can weld the light round steel bars 2 to the steel bar ring 1, and the user can start The motor 3004, at this time, the bevel gear B3003 fixedly connected to its output shaft begins to rotate at a uniform speed, so that the bevel gear B3003 drives the bevel gear A3001 meshingly connected on its upper and lower sides to start rotating, so that the bevel gear A3001 drives the shaft disk A308 and the shaft disk B309 fixedly connected to it to rotate synchronously. At this time, the multiple clamps 3002 fixedly connected to the shaft disk A308 and the shaft disk B309 begin to rotate synchronously, and the two adjacent clamps 3002 on the upper and lower sides are engaged with the smooth round steel bar 2 on the insert cylinder 304, thereby clamping the smooth round steel bar 2 to increase the positioning stability. After welding is completed, the steel bar ring 1 and the smooth round steel bar 2 form a steel cage skeleton, and then the user can lift the steel cage skeleton. When the smooth round steel bar 2 is separated from the insert cylinder 304, the user can rotate the turntable 403 in the opposite direction, thereby resetting the insert cylinder 304 and the support plate 201, and the steel cage skeleton can be removed from the support plate 201.

[0039] See also Figure 6 Specifically, the limit assembly 40 includes a sleeve 401, a screw rod 402, a turntable 403 and a slide 404. The sleeve 401 is fixedly connected to the top of the frame 101, the screw rod 402 is fixedly connected to the main shaft 203, the screw rod 402 is rotatably connected to the sleeve 401, the slide 404 is threadedly connected to the screw rod 402, the slide 404 is slidably connected to the sleeve 401, and the turntable 403 is fixedly connected to the screw rod 402.

[0040] See also Figure 6 as well as Figure 7Specifically, a pull rod 406 is symmetrically hinged on the slide 404, the other end of the pull rod 406 is hinged to a clamping rod 405, one end of the clamping rod 405 is hinged to a sleeve 401, the other end of the clamping rod 405 is fixedly connected to an arc plate A407, a rod 408 is symmetrically fixedly connected to the arc plate A407, an arc plate B409 is slidably connected to the rod 408, a plurality of guide plates 4002 are fixedly connected to the arc plate B409, the guide plates 4002 are used for slidingly guiding the steel bars, a spring A4001 is sleeved on the rod 408, one end of the spring A4001 is fixedly connected to the arc plate A407, and the other end of the spring A4001 is fixedly connected to the arc plate B409.

[0041] When the user rotates the turntable 403, the screw rod 402 fixedly connected to its axis begins to rotate at a constant speed. At this time, the slide cylinder 404 threadedly connected to the screw rod 402 begins to move linearly along the connection between it and the sleeve 401, and drives the multiple pull rods 406 hinged on it to slide synchronously, so that the pull rod 406 begins to pull the clamp rod 405 hinged thereto, so that the clamp rod 405 begins to rotate downward at its hinge with the sleeve 401. When the plain round steel bar 2 is pushed to fit on the steel bar ring 1, the inclined surface on the guide plate 4002 synchronously contacts the plain round steel bar 2. At this time, the clamp rod 405 continues to slide, so that the plain round steel bar 2 can It is able to push the arc plate B409 along the inclined surface of the guide plate 4002, so that the arc plate B409 starts to move linearly along the connection between it and the rod 408, and stretch the spring A4001 fixedly connected to it, so that when the smooth round steel bar 2 slides between the arc plate B409 and the arc plate A407, the spring A4001 can rebound and reset, thereby pulling the guide plate 4002 to fit on the smooth round steel bar 2, positioning the top of the smooth round steel bar 2, so that it cooperates with multiple clamps 3002, and positioning the top and bottom of the smooth round steel bar 2 to increase its stability and avoid sliding displacement of the smooth round steel bar 2 during welding.

[0042] See also Figures 8 to 10 , provided in one embodiment of the present invention, is a construction structure and method for a base bolt reserved hole with an angle, comprising a steel cage skeleton for fixing a steel needle bundle 5; and a steel needle bundle core mold for positioning the reserved hole;

[0043] The steel cage skeleton is composed of several steel rings 1 and several plain round steel bars 2 of equal length and equal spacing. Several steel rings 1 are arranged along the length direction of the plain round steel bars 2. Multiple steel rings 1 are symmetrically welded on the outside of multiple plain round steel bars 2, and the spacing between adjacent steel rings 1 is not more than 200 mm.

[0044] Specifically, the steel cage skeleton is arranged in the foundation steel mesh 4, and the foundation steel mesh 4 is arranged in the concrete foundation 7. The position and angle of the steel cage skeleton are determined according to the requirements of the reserved holes. The plurality of plain round steel bars 2 are respectively welded with steel bars 3, and the other ends of the plurality of steel bars 3 are respectively welded to the foundation steel mesh 4.

[0045] Specifically, the steel needle bundle core mold includes a steel needle bundle 5 and a lead wire 6. The steel needle bundle 5 is a pull-out plug body formed by a number of steel needles of the same length and different diameters tied together by a number of lead wires 6. The position and number of the lead wires 6 are determined according to the steel rings 1 of the steel cage skeleton. Both ends of each lead wire 6 on the steel needle bundle 5 have excess length, and the excess length at both ends is buckled to the corresponding position of the steel rings 1.

[0046] Specifically, the diameter of the steel needle bundle 5 is consistent with the inner diameter of the steel cage frame, and the total length of the steel needle bundle 5 is 150-180 mm larger than the steel cage frame. The steel needles of the steel needle bundle 5 are solid stainless steel, with a diameter range of 5-8 mm, tapered at both ends, and a tapered length of 30 mm.

[0047] Specifically, the steel needle bundle 5 is in the steel cage frame, the lower end of the steel needle bundle 5 extends out of the steel cage frame by 30 mm, and the upper end extends out of the steel cage frame by 120-150 mm.

[0048] In the embodiment of the present invention, the size and angle of the reserved holes are determined on the concrete foundation 7 according to the specifications and directions of the equipment base bolts, and the steel cage skeleton is designed and manufactured according to the size of the reserved holes; the steel needle bundle plug is manufactured according to the size of the steel cage skeleton, the diameter of the steel needle bundle 5 is consistent with the inner diameter of the steel cage skeleton, and the length is 150-180 mm greater than the steel cage skeleton. The steel needle bundle 5 is composed of a number of stainless steel needles of equal length and different diameters, and the diameter range of the steel needles is 5-8 mm, and the two ends are tapered. Then, several lead wires 6 are tied along the length direction of the steel needle bundle 5, and the number and position of the lead wires 6 are matched according to the steel bar ring 1 on the steel cage skeleton, and extra length is left at both ends of each lead wire 6. In the process of tying the foundation steel mesh 4, the steel cage skeleton is placed according to the position of the bolt reserved holes, and the direction of the steel cage skeleton is consistent with the angle of the bolt reserved holes. The steel cage skeleton is connected to the foundation steel mesh 4 through the steel bars 3 , one end of the steel bar 3 is welded to the steel cage skeleton, and the other end is welded to the basic steel mesh 4, and the steel cage skeleton is buried in the basic steel mesh 4. After the steel cage skeleton is fixed, the steel needle bundle 5 is placed in the steel cage skeleton, and the lower end of the steel needle bundle 5 extends out of the steel cage skeleton by 30mm, and the upper end extends out of the steel cage skeleton by 120-150mm. At the same time, the excess length of each lead wire at both ends of the steel needle bundle 5 should be firmly buckled on the steel ring 1 at the corresponding position of the steel cage skeleton, and then the position, elevation and angle of the steel needle bundle plug are checked, concrete is poured around the steel cage skeleton, and vibrated along the length direction of the steel cage skeleton. After the concrete is initially solidified and reaches a certain strength, before the final solidification, the steel needles in the hole are pulled out one by one from the middle to the surrounding areas to form a reserved hole, and the concrete on its surface is cleaned in time and properly stored. After the concrete is finally solidified, the debris in the reserved hole is cleaned and the hole mouth is covered. The hole mouth covering is a plastic plate or a thin steel plate pasted with transparent tape.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] The fixed connection referred to in this application refers to a connection in which a part or component is fixed without any relative movement, which can be divided into detachable connection and non-detachable connection.

[0051] (1) Removable connection: The parts are fixed together by screws, splines, wedge pins, etc. This connection method can be disassembled for maintenance without damaging the parts. However, the specifications of the connectors used must be correct (such as the length of the bolts, keys, and wedge pins) and they must be properly tightened.

[0052] (2) Non-detachable connection: mainly refers to welding, riveting and tenoning. Since forging, sawing or oxygen cutting are required for disassembly during maintenance or replacement, spare parts generally cannot be reused. At the same time, attention should be paid to process quality, technical inspection and remedial measures (such as calibration, polishing, etc.) during connection.

[0053] The sliding connection referred to in the present application means that the component can slide along a linear trajectory, and the hinged connection referred to in the present application means that the component can rotate along an axial constraint.

[0054] In some cases, the sliding connection and hinge referred to in the present application may also be damped so that the components have the ability to maintain a desired position.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for setting a pre-set hole for a base bolt with an angle, characterized in that: It includes a steel cage frame for fixing the steel needle bundle; and a steel needle bundle core mold for positioning the reserved holes: The steel cage skeleton is composed of a plurality of steel rings (1) and a plurality of plain round steel bars (2) arranged with equal length and equal spacing. A plurality of the steel rings (1) are arranged along the length direction of the plain round steel bars (2). A plurality of the steel rings (1) are symmetrically welded to the outside of a plurality of plain round steel bars (2), and the spacing between adjacent steel rings (1) is not greater than 200 mm.

2. The angled base bolt reserved hole setting device according to claim 1, characterized in that: The steel cage skeleton is arranged in a foundation steel mesh (4), and the foundation steel mesh (4) is arranged in a concrete foundation (7). The position and angle of the steel cage skeleton are determined according to the requirements of the reserved holes. A plurality of the plain round steel bars (2) are respectively welded with steel bars (3), and the other ends of the plurality of the steel bars (3) are respectively welded to the foundation steel mesh (4).

3. The angled base bolt reserved hole setting device according to claim 1, characterized in that: The steel needle bundle core mold comprises a steel needle bundle (5) and lead wires (6). The steel needle bundle (5) is a pull-out plug body formed by binding a number of steel needles of the same length and different diameters through a number of lead wires (6). The positions and number of the lead wires (6) are determined according to the steel bar rings (1) of the steel cage skeleton. The two ends of each lead wire (6) on the steel needle bundle (5) have excess length, and the excess length at the two ends is buckled onto the steel bar rings (1) at corresponding positions.

4. The angled base bolt pre-hole arrangement device according to claim 3, characterized in that: The diameter of the steel needle bundle (5) is consistent with the inner diameter of the steel cage frame, and the total length of the steel needle bundle (5) is 150-180 mm greater than the steel cage frame. The steel needles of the steel needle bundle (5) are solid stainless steel with a diameter ranging from 5 to 8 mm, and are tapered at both ends with a tapered length of 30 mm.

5. The angled base bolt pre-hole arrangement device according to claim 3, characterized in that: The steel needle bundle (5) is located in the steel cage frame, with the lower end of the steel needle bundle (5) extending out of the steel cage frame by 30 mm, and the upper end extending out of the steel cage frame by 120-150 mm.

6. The angled base bolt pre-hole setting device according to claim 1 comprises a frame (101) and a positioning assembly (20) for assembling a steel cage skeleton, wherein the positioning assembly (20) comprises a butt plate (201), a sleeve (202), a main shaft (203), a cam (204), a connecting plate (205) and a guide rod (206), wherein a plurality of the butt plates (201) are symmetrically slidably connected in the grooves of the frame (101), a plurality of the sleeves (202) are slidably connected to the butt plates (201), the sleeves (202) are used to position the steel ring (1), the main shaft (203) is rotatably connected to the frame (101), the cam (204) is fixedly connected to the main shaft (203), and the The cam (204) is used to push the abutment plate (201) to make it slide out of the groove of the frame (101); the connecting plate (205) is fixedly connected to the abutment plate (201); the connecting plate (205) is slidably connected to the guide rod (206); a spring (207) is sleeved on the guide rod (206); one end of the spring (207) is fixedly connected to the connecting plate (205); the other end of the spring (207) is fixedly connected to the positioning block (208); the positioning block (208) is fixedly connected to the frame (101); the frame (101) is fixedly connected to the base (209); the main shaft (203) is connected to the connecting assembly (30); and the frame (101) is connected to the limiting assembly (40).

7. According to the angled base bolt pre-hole setting device described in claim 6, the connecting assembly (30) comprises a cam B (301), a disc (302), a slide plate (303) and an insert tube (304), the cam B (301) is fixedly connected to the bottom of the main shaft (203), the disc (302) is fixedly connected to the slide plate (303), the slide plate (303) is fixedly connected with an insert tube (304), the insert tube (304) is used to position the smooth round steel bar (2), the slide plate (303) is slidably connected to the slide rod (305), the slide rod (305) is fixedly connected to the connecting block (306), the connecting block (306) is fixedly connected to the base (209), a return spring (307) is sleeved on the slide rod (305), one end of the return spring (307) is fixedly connected to the slide plate (303), and the other end of the return spring (307) is fixedly connected to the connecting block (306).

8. According to the angled base bolt pre-hole setting device according to claim 7, the frame (101) is rotatably connected to a shaft disk A (308) and a shaft disk B (309), and there is a certain distance between the shaft disk A (308) and the shaft disk B (309). The shaft disk A (308) and the shaft disk B (309) are respectively fixedly connected to a plurality of chucks (3002), and the plurality of chucks (3002) are arranged alternately with each other, and two adjacent chucks (3002) on the upper and lower sides can form a complete cylinder. The shaft disk A (308) and the shaft disk B (309) are respectively fixedly connected to a bevel gear A (3001), and the two bevel gears A (3001) are meshedly connected to the bevel gear B (3003), and the bevel gear B (3003) is fixedly connected to the output shaft of the motor (3004), and the motor (3004) is rotatably connected to the main shaft (203).

9. According to the angled base bolt pre-hole setting device described in claim 6, the limiting assembly (40) includes a sleeve (401), a screw rod (402), a turntable (403) and a slide cylinder (404), the sleeve (401) is fixedly connected to the top of the frame (101), the screw rod (402) is fixedly connected to the main shaft (203), the screw rod (402) is rotatably connected to the sleeve (401), the slide cylinder (404) is threadedly connected to the screw rod (402), the slide cylinder (404) is slidably connected to the sleeve (401), the turntable (403) is fixedly connected to the screw rod (402), and the slide cylinder (404) is symmetrically hinged with a pull rod (406), and the pull rod (406) The other end is hinged to the clamp rod (405), one end of the clamp rod (405) is hinged to the sleeve (401), the other end of the clamp rod (405) is fixedly connected to an arc plate A (407), the arc plate A (407) is symmetrically fixedly connected to a rod (408), the rod (408) is slidably connected to an arc plate B (409), the arc plate B (409) is fixedly connected to a plurality of guide plates (4002), the guide plates (4002) are used for slidingly guiding the steel bars, a spring A (4001) is sleeved on the rod (408), one end of the spring A (4001) is fixedly connected to the arc plate A (407), and the other end of the spring A (4001) is fixedly connected to the arc plate B (409).

10. A method for constructing angled base bolt reserved holes, characterized in that: The following steps are involved: S1. According to the specifications and directions of the equipment base bolts, the size and angle of the reserved holes are determined on the concrete foundation. According to the size of the reserved holes, a steel cage skeleton is designed and manufactured. The steel cage skeleton is welded by a number of equal-length plain round steel bars and steel rings. The plain round steel bars in the steel cage skeleton are arranged at equal intervals. The steel rings are welded to the outside of the plain round steel bars and are arranged in multiples along the length direction of the plain round steel bars. S2. Make a steel needle bundle according to the size of the steel cage frame. The diameter of the steel needle bundle is consistent with the inner diameter of the steel cage frame, and the length is 150-180mm longer than the steel cage frame. The steel needle bundle is composed of several stainless steel needles of equal length and different diameters. The diameter of the steel needles ranges from 5 to 8mm, and the two ends are tapered. Then, several lead wires are tied along the length direction of the steel needle bundle. The number and position of the lead wires match the steel rings on the steel cage frame, and there is extra length at both ends of each lead wire. S3. During the process of tying the foundation steel mesh, a steel cage skeleton is placed according to the position of the bolt reserved holes. The direction of the steel cage skeleton is consistent with the angle of the bolt reserved holes. The steel cage skeleton is connected to the foundation steel mesh through steel bars. One end of the steel bar is welded to the steel cage skeleton, and the other end is welded to the foundation steel mesh. S4. Put the steel needle bundle into the steel cage frame, with the lower end of the steel needle bundle extending 30 mm from the steel cage frame and the upper end extending 120-150 mm from the steel cage frame. Securely buckle the excess length of each lead wire at both ends of the steel needle bundle to the steel ring at the corresponding position of the steel cage frame; S5. Check the position, elevation and angle of the steel needle bundle plug, then pour concrete evenly and slowly around the steel cage frame, and vibrate along the length of the steel cage frame. After the concrete is initially set and reaches a certain strength, and before final setting, pull out the steel needles in the holes from the middle to the surrounding areas to form reserved holes, and clean the concrete on the surface in time and store it properly. After the concrete is finally set, cover the hole opening with a plastic plate or thin steel plate taped with transparent tape.

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