Outdoor power transformation equipment foundation embedded bolt positioning device

Abstract

The invention relates to the field of embedded bolt positioning tools, and discloses an outdoor power transformation equipment foundation embedded bolt positioning device which is characterized in that a positioning plate is detachably connected to a corresponding foundation in a working state; the horizontal sliding block is connected to the positioning plate in a sliding mode. When the adjusting structure is in a rotating state, each horizontal sliding block slides along the positioning plate, and the bolt positioning structures are connected to the corresponding horizontal sliding blocks so as to clamp and position embedded bolts. The device has the beneficial effects that the horizontal sliding block is slidably connected to the positioning plate, and the bolt positioning structure is arranged on the horizontal sliding block to clamp and position the embedded bolt, so that the embedded bolt can be conveniently positioned on a foundation after penetrating through the foundation bolt mounting hole, the mounting precision of the embedded bolt (foundation bolt) is improved, and the mounting efficiency is improved. The installation precision of frameworks of 220kV / 110kV switches, lightning arresters, disconnecting switches and the like is ensured, and the conductivity of the frameworks is ensured.

Description

Technical Field

[0001] The invention relates to the field of embedded bolt positioning tooling, and in particular to a embedded bolt positioning device for outdoor power transformation equipment foundation. Background Art

[0002] Before installing the structures of 220kV / 110kV switches, lightning arresters, disconnectors, and other equipment at substation maintenance sites, anchor bolts must be pre-embedded in the foundation. Before embedding the anchor bolts, temporary fixed molds for the pre-embedded bolts must be made based on different voltage levels and equipment sizes from different manufacturers. Each fixed mold cannot be reused. Due to the low positioning accuracy of the temporary fixed molds, the pre-embedded anchor bolts have large installation errors, which in turn leads to large installation errors in the structures of 220kV / 110kV switches, lightning arresters, disconnectors, etc., which may cause poor contact and affect their conductive performance. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the positioning accuracy of the temporarily made embedded bolt fixing mold is low, resulting in large installation errors between the embedded anchor bolts, affecting the conductive performance of the switch contacts. The purpose is to provide a pre-embedded bolt positioning device for the foundation of outdoor substation equipment, which positions the embedded bolts through the positioning plate and the anchor bolt mounting holes provided on the horizontal slider, thereby improving the installation accuracy of the embedded bolts and ensuring the conductive performance of the switch contacts.

[0004] The present invention is achieved through the following technical solutions: A device for positioning pre-embedded bolts for the foundation of outdoor substation equipment comprises a positioning plate, several bolt positioning structures, several horizontal sliders and an adjustment structure. In a working state, the positioning plate can be detachably connected to the corresponding foundation; the horizontal slider can be slidably connected to the positioning plate; when the adjustment structure is in a rotating state, each horizontal slider slides along the positioning plate; the bolt positioning structure is connected to the corresponding horizontal slider to clamp and position the pre-embedded bolts.

[0005] The beneficial effects of the present invention are that, by setting a positioning plate to form a positioning reference of the embedded bolt positioning device, the positioning plate is detachably connected to the foundation, so that the embedded bolt positioning device can be conveniently removed from the foundation after the embedded bolt is installed, so that the device can be reused, thereby improving the versatility of the device; the horizontal slider is slidably connected to the positioning plate, and a bolt positioning structure is provided on the horizontal slider, so that the embedded bolt is conveniently clamped by the clamped and positioned embedded bolt after passing through the bolt positioning structure, thereby improving the installation accuracy of the embedded bolt (anchor bolt), ensuring the installation accuracy of the frame of 220kV / 110kV switches, lightning arresters, disconnectors, etc., ensuring the conductive performance of the switch contacts, and also by sliding the horizontal slider so that the embedded bolt positioning device can meet the needs of embedded bolts in different installation ranges, thereby improving the versatility of the device; and by providing an adjustment structure, when the adjustment structure is in a rotating state, each of the horizontal sliders slides along the positioning plate, so that multiple horizontal sliders slide at the same time, thereby simultaneously determining the installation position of the embedded bolts, thereby improving the efficiency of installing the embedded bolts.

[0006] In some embodiments, the adjustment structure includes a pull rod anchor plate, a main shaft screw and at least two pull rods, the bottom of the main shaft screw is rotatably connected to the positioning plate, the pull rod anchor plate is adjustable up and down on the main shaft screw, and the two ends of the pull rod are respectively hinged to the pull rod anchor plate and the corresponding horizontal slider. By rotatably connecting the bottom of the main shaft screw to the positioning plate, the main shaft screw can be rotated on the positioning plate, and the pull rod anchor plate can move up and down when the main shaft screw rotates, and the two ends of the pull rod are respectively connected to the pull rod anchor plate and the corresponding horizontal slider, so that when the main shaft screw rotates, all the horizontal sliders are driven to slide along the corresponding positions of the positioning plate at the same time. When the horizontal slider slides to the designed position, the main shaft screw stops rotating, thereby determining the installation position of all embedded bolts, thereby improving the efficiency of installing the embedded bolts.

[0007] In some embodiments, the tie rod anchor disc is cylindrical in shape, and is provided with at least two connecting lugs on its outer circumference. The connecting lugs are evenly distributed along the outer circumference of the tie rod anchor disc, and each tie rod is connected to a corresponding connecting lug at one end away from the horizontal slider. The evenly distributed connecting lugs on the outer circumference of the tie rod anchor disc facilitate connection to the tie rods via the connecting lugs, thereby improving the positional accuracy, strength, and rigidity of the connection points.

[0008] In some embodiments, the positioning plate includes a spindle mounting portion and at least two legs, the legs being located on the periphery of the spindle mounting portion and being evenly distributed along the periphery of the spindle mounting portion. The horizontal sliders are respectively disposed on corresponding legs. Providing at least two legs on the positioning plate facilitates direct determination of the installation orientation of each embedded bolt via the positioning plate. Furthermore, by disposing the horizontal sliders on the corresponding legs, the embedded bolts are then positioned at the corresponding orientations via the horizontal sliders, thereby achieving accurate positioning of the embedded bolts.

[0009] In some embodiments, each leg is provided with a strip-shaped through-hole extending along the length of the leg, and the bolt positioning structure is movable along the inner cavity of the corresponding strip-shaped through-hole. By providing the strip-shaped through-hole extending along the length of the leg and allowing the bolt positioning structure to move along the inner cavity of the corresponding strip-shaped through-hole, it is convenient to pass the embedded bolt through the bolt positioning structure during installation. The clamping force of the positioning structure prevents the embedded bolt from displacement or deflection during concrete pouring or during the concrete curing period. The strip-shaped through-hole further limits the embedded bolt, thereby improving the positioning effect of the embedded bolt while ensuring the versatility of the device.

[0010] In some embodiments, the bolt positioning structure includes a positioning cylinder, a radial locking bolt, and a bellows. The top of the positioning cylinder is connected to the side wall of the corresponding central through hole of the horizontal slider. The bottom of the positioning cylinder is provided with a limiting portion. The axial hole of the bellows is matched with the inner cavity of the positioning cylinder and is located above the limiting portion. The inner side wall of the positioning cylinder is provided with an internal thread that is screwed with the radial locking bolt. The axis of the positioning cylinder and the radial locking bolt are both provided with a through hole for the embedded bolt to pass through. When the bellows is axially compressed, the bellows applies a radial clamping force to the embedded bolt. When the embedded bolt needs to be positioned, the radial locking bolt is first continuously screwed with the internal thread of the positioning cylinder. The radial locking bolt gradually axially compresses the bellows. The folds of the bellows will expand evenly, generating a uniform radial clamping force, so that the embedded bolt is vertically positioned inside the positioning cylinder, preventing the embedded bolt from displacement or deflection during concrete pouring or concrete curing, and ensuring the installation accuracy of the embedded bolt.

[0011] In some embodiments, the bolt positioning structure includes a positioning cylinder, a radial locking bolt and an expansion rubber cylinder. The top of the positioning cylinder is connected to the side wall of the corresponding central through hole of the horizontal slider. The bottom of the positioning cylinder is provided with a limiting portion. The axial hole of the expansion rubber cylinder is matched with the inner cavity of the positioning cylinder and is located above the limiting portion. The inner side wall of the positioning cylinder is provided with an internal thread that is screwed with the radial locking bolt. The inner diameter of the expansion rubber cylinder is smaller than the outer diameter of the embedded bolt by 0.05mm-0.08mm, and the outer diameter is larger than the inner diameter of the internal thread. The centers of the positioning cylinder and the radial locking bolt are both provided with through holes for the embedded bolts to pass through. When the expansion rubber cylinder is axially compressed, the expansion rubber cylinder applies a radial clamping force to the embedded bolt. When the embedded bolt needs to be positioned, the radial locking bolt is first screwed into the internal thread of the positioning tube continuously. The radial locking bolt gradually axially compresses the expansion rubber tube. The inner diameter of the expansion rubber tube will expand evenly, generating a radial clamping force, so that the embedded bolt is vertically positioned inside the positioning tube, preventing the embedded bolt from displacement or deflection during concrete pouring or concrete curing period, and ensuring the installation accuracy of the embedded bolt.

[0012] In some embodiments, the bolt positioning structure includes a positioning cylinder and a magnet. The top of the positioning cylinder is connected to the side wall of the corresponding central through hole of the horizontal slider. A limiting portion is provided at the bottom of the positioning cylinder. The magnet is cylindrical and tubular. The magnet shaft hole fits in the inner cavity of the positioning cylinder and is located above the limiting portion. The inner cavity diameter of the magnet is larger than the outer diameter of the embedded bolt by 0.03mm-0.05mm and is radially magnetized. The horizontal slider, positioning plate and positioning cylinder are all made of plastic or 304 stainless steel, and the embedded bolt is martensitic stainless steel. By setting the magnet to be radially magnetized, the inner and outer rings of the magnet are the N pole and S pole respectively. The magnetic field lines diverge radially from the inner ring to the outer ring, or converge from the outer ring to the inner ring, so that a uniform radial magnetic field is formed in the center hole of the magnet. Then, when a magnetic object (embedded bolt made of martensitic stainless steel) is inserted into the center hole, the magnetic field lines preferentially pass through the magnetic object to form a closed loop, generating radial attraction, and thus being "clamped" in the center position of the magnet. Even when the embedded bolt deviates from the center, the magnetic field gap on the deviated side decreases and the attraction increases, eventually automatically pulling the object toward the center of the circle, achieving concentric positioning, so that the embedded bolt is vertically positioned on the inner axis of the positioning cylinder, preventing the embedded bolt from displacement or deflection during concrete pouring or concrete curing period, and ensuring the installation accuracy of the embedded bolt.

[0013] In some embodiments, the horizontal slider has an N-shaped cross-section, with mounting shafts connected to both sides of the slider, the virtual axes of the mounting shafts being parallel to the top of the slider. Second bearings are sleeved around the mounting shafts, each located inside the slider, with the outer rings of the second bearings in sliding contact with the bottoms of the corresponding legs. By configuring the horizontal slider's N-shaped cross-section and installing the second bearings inside the slider, friction between the slider and the legs is reduced during movement, ensuring smooth movement of the slider.

[0014] In some embodiments, the system further comprises at least two levels and at least two leveling bolts, each of which is provided on a corresponding leg. Each leg is provided with a threaded hole, and the leveling bolt is screwed into the corresponding threaded hole and first locking nut in sequence, and the locking nut abuts against the corresponding leg. By providing a leveling bolt and a level on each leg, the position of the leg can be adjusted by adjusting the relative position of the leveling bolt and the leg, and the level is used to measure whether the leg is in a horizontal state, so that the leg operates in a horizontal state, ensuring the accuracy of the position of the horizontal slider, and further ensuring the accuracy of the position of the embedded bolt.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The horizontal slider is slidably connected to the positioning plate, and anchor bolt mounting holes are set on the horizontal slider to facilitate the positioning of the embedded bolts on the foundation after passing through the anchor bolt mounting holes, thereby improving the installation accuracy of the embedded bolts (anchor bolts), ensuring the installation accuracy of the structure of 220kV / 110kV switches, lightning arresters, disconnectors, etc., and ensuring their conductive performance.

[0016] 2. By setting a bolt positioning structure on the horizontal slider, a radial clamping force is generated on the embedded bolts by radially compressing the bellows or expanding the rubber tube, ensuring that the embedded bolts are vertically positioned on the inner axis of the positioning tube, preventing the embedded bolts from displacement or deflection during concrete pouring or concrete curing period, and ensuring the installation accuracy of the embedded bolts.

[0017] 3. The bottom of the spindle screw is rotatably connected to the positioning plate. When the spindle screw rotates, the pull rod anchor plate can move up and down, so that when the spindle screw rotates, all the horizontal sliders are driven to slide along the corresponding support legs at the same time. When the horizontal slider slides to the designed position, the spindle screw is stopped, and the installation position of all embedded bolts is determined, thereby improving the efficiency of installing the embedded bolts.

[0018] 4. By setting the cross section of the horizontal slider to be n-shaped and installing a second bearing on the inner side of the horizontal slider, the friction between the horizontal slider and the support legs is reduced when the horizontal slider moves, so that the horizontal slider can move smoothly.

[0019] 5. Each leg is equipped with a horizontal bolt and a spirit level, which makes it easy to adjust the position of the leg by adjusting the relative position of the horizontal bolt and the leg, and use the spirit level to measure whether the leg is in a horizontal state, so that the leg can work in a horizontal state, ensuring the accuracy of the position of the horizontal slider, and then ensuring the accuracy of the position of the embedded bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the examples. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be considered as limiting the scope. A person of ordinary skill in the art can also derive other relevant drawings based on these drawings without inventive effort. In the drawings: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a structural diagram of the pull rod anchor plate in the present invention; Figure 3 It is a structural diagram of the pull rod in the present invention; Figure 4 A top view of the positioning plate of the present invention; Figure 5 A top view of the horizontal slider of the present invention; Figure 6 For the present invention Figure 5 Cross-sectional view of AA; Figure 7 For the present invention Figure 5 Cross-sectional view of AA; Figure 8 This is a cross-sectional view of Example 3 of the present invention.

[0021] Markings and corresponding parts names in the accompanying drawings: Adjusting handle 1, spindle screw 2, pull rod anchor plate 3, pull rod 4, horizontal slider 5, positioning plate 6, spirit level 7, horizontal bolt 8, first locking nut 9, connecting part 10, external thread 11, connecting lug 12, connecting hole 13, first bearing 14, positioning cylinder 15, connecting block 16, strip through hole 17, spindle mounting part 18, threaded hole 19, scale 20, second locking nut 21, second bearing 22, radial locking bolt 30, bolt through hole 301, positioning cylinder 31, limiting part 32, bellows 33, expansion rubber cylinder 34, magnet 35. DETAILED DESCRIPTION

[0022] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with examples and drawings. The exemplary embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0023] Throughout this specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment of the present invention. Therefore, appearances of the phrases "one embodiment," "an embodiment," "an example," or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combinations and / or subcombinations. Furthermore, it will be understood by those of ordinary skill in the art that the figures provided herein are for illustrative purposes only and are not necessarily drawn to scale. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0024] In the description of the present invention, the terms "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0025] The terms "first" and "second" used in the present invention are only used to distinguish corresponding components for the sake of clarity of description and are not intended to limit any order or emphasize importance. In addition, the term "connected" used in this article can refer to direct connection or indirect connection via other components unless otherwise specified.

[0026] Example 1 See also Figures 1-6 This embodiment 1 provides a pre-embedded bolt positioning device for the foundation of an outdoor substation equipment, including a positioning plate 6, several horizontal sliders 5 and an adjustment structure. The positioning plate 6 can be detachably connected to the corresponding foundation in the working state; the horizontal slider 5 can be slidably connected to the positioning plate 6, and the horizontal slider 5 is provided with an anchor bolt mounting hole 15; when the adjustment structure is in a rotating state, each of the horizontal sliders 5 slides along the positioning plate 6.

[0027] See also Figure 1A connecting portion 10 is provided at the top of the spindle screw 2. The connecting portion 10 is a polygonal column. The polygonal column cooperates with the polygonal hole of the adjustment handle 1, so that when the spindle screw 2 is rotated, it is convenient to rotate the adjustment handle 1.

[0028] See also Figures 1-6 The adjustment structure includes a tie rod anchor plate 3, a main shaft screw 2 and at least two tie rods 4. The bottom of the main shaft screw 2 is rotatably connected to the positioning plate 6. The tie rod anchor plate 3 is adjustable up and down on the main shaft screw 2. The two ends of the tie rod 4 are respectively hinged to the tie rod anchor plate 3 and the corresponding horizontal slider 5. By rotatably connecting the bottom of the main shaft screw 2 to the positioning plate 6, the main shaft screw 2 can be rotated on the positioning plate 6. When the main shaft screw 2 rotates, the tie rod anchor plate 3 can move up and down. The two ends of the tie rod 4 are respectively connected to the tie rod anchor plate 3 and the corresponding horizontal slider 5. When the main shaft screw 2 rotates, all the horizontal sliders 5 are driven to slide along the corresponding positions of the positioning plate 6 at the same time. When the horizontal slider 5 slides to the designed position, the main shaft screw 2 stops rotating, thereby determining the installation position of all embedded bolts, thereby improving the efficiency of installing embedded bolts.

[0029] See also Figure 3 The connecting lug 12 is provided with a connecting hole 13, and the pull rod 4 is provided with a through hole. Rivets or bolts pass through the connecting hole 13 and the through hole to connect the pull rod 4 to the hinged lug. Figure 1 and Figure 2 The anchor plate 3 is cylindrical and has at least two connecting lugs 12 arranged on its outer circumference. The connecting lugs 12 are evenly distributed along the outer circumference of the anchor plate 3. Each of the tie rods 4 is connected to a corresponding connecting lug 12 at one end away from the horizontal slider 5. The evenly distributed four connecting lugs 12 on the outer circumference of the anchor plate 3 facilitate connection with the tie rods 4 through the connecting lugs 12, improving the positional accuracy, strength, and rigidity of the connection points. Figure 1-Figure 3 The spindle screw 2 is provided with an external thread 11, which extends along the length of the spindle screw 2. The inner side of the tie rod anchor plate 3 is provided with an internal thread that screws into the external thread 11. By providing the external thread 11 on the spindle screw 2 and the internal thread that screws into the tie rod anchor plate 3, the tie rod anchor plate 3 can be easily moved up and down along the spindle screw 2 by rotating the spindle screw 2, thereby driving the tie rod 4 to move. The tie rod 4 drives the horizontal slider 5 to slide along the positioning plate 6 to determine the installation position of the embedded bolt.

[0030] See also Figure 1 and Figure 6The positioning plate 6 includes a spindle mounting portion 18 and at least two legs. The legs are located on the outer periphery of the spindle mounting portion 18 and are evenly distributed along the outer periphery of the spindle mounting portion 18. The horizontal sliders 5 are respectively disposed on the corresponding legs. Specifically, the number of legs can be four, and the angle between two adjacent legs is a right angle. By providing four legs on the positioning plate 6, the positioning plate 6 can directly determine the installation orientation of the four embedded bolts. Then, by disposing the horizontal sliders 5 on the corresponding legs, the embedded bolts can be positioned at the corresponding orientations by the horizontal sliders 5, thereby achieving accurate positioning of the embedded bolts.

[0031] Specifically, a plurality of support leg mounting holes may be evenly distributed on the periphery of the main shaft mounting portion 18 to facilitate installation of a corresponding number of support legs according to actual needs, thereby further improving the versatility of the device.

[0032] See also Figure 1 The spindle mounting portion 18 is located at the center of the positioning plate 6. A bearing mounting hole is provided on the spindle mounting portion 18. A first bearing 14 is mounted in the bearing mounting hole. The bottom of the spindle screw 2 is engaged with the inner ring shaft hole of the first bearing 14. By locating the spindle mounting portion 18 at the center of the positioning plate 6, the distance between the spindle screw 2 and each horizontal slider 5 is ensured to be the same, thereby ensuring the positional accuracy of the horizontal sliders 5. Furthermore, by providing the first bearing 14 to mount the spindle screw 2, the spindle screw 2 does not affect the position of the positioning plate 6 during rotation, thereby ensuring smooth rotation of the spindle screw 2.

[0033] See also Figure 1 and Figure 6 In some embodiments, each leg is provided with a strip-shaped through-hole 17 extending along the length of the leg, and the bolt positioning structure is movable along the inner cavity of the corresponding strip-shaped through-hole 17. By providing the strip-shaped holes extending along the length of the leg and allowing the bolt positioning structure to move along the inner cavity of the corresponding strip-shaped through-hole 17, it is convenient to pass the embedded bolts through the bolt positioning structure during installation. Under the clamping force of the positioning structure, the embedded bolts are prevented from displacement or deflection during concrete pouring or during the concrete curing period. The strip-shaped holes further limit the position of the embedded bolts, thereby improving the positioning effect of the embedded bolts while ensuring the versatility of the device.

[0034] See also Figure 1 and Figure 6The bolt positioning structure includes a positioning cylinder 15, a radial locking bolt 30 and a bellows 33. The top of the positioning cylinder 15 is connected to the side wall of the central through hole of the corresponding horizontal slider 5. The bottom of the positioning cylinder 15 is provided with a limiting portion 32. The axial hole of the bellows 33 cooperates with the inner cavity of the positioning cylinder 15 and is located above the limiting portion 32. The inner side wall of the positioning cylinder 15 is provided with an internal thread that is screwed with the radial locking bolt 30. The axis of the positioning cylinder 15 and the radial locking bolt 30 are both provided with through holes for the embedded bolts to pass through. When the bellows 33 is axially compressed, the bellows 33 applies a radial clamping force to the embedded bolts. To facilitate positioning of the embedded bolts, radial locking bolts 30 are first continuously screwed into the internal threads of the positioning cylinder 15. The radial locking bolts 30 gradually axially compress the bellows 33, evenly expanding the folds of the bellows 33 and generating a uniform radial clamping force. This allows the embedded bolts to be vertically positioned inside the positioning cylinder 15, preventing displacement or deflection of the embedded bolts during concrete pouring or curing, and ensuring accurate installation of the embedded bolts. The bellows 33 is made of an elastic material, such as rubber or stainless steel.

[0035] See also Figure 4 and Figure 5 The horizontal slider 5 has an N-shaped cross-section. Mounting shafts are connected to both sides of the slider, with their virtual axes parallel to the top of the slider. Second bearings 22 are sleeved around each mounting shaft, located inside the slider. The outer rings of the second bearings 22 slide in contact with the bottoms of the corresponding legs. By designing the horizontal slider 5 as an N-shaped cross-section and mounting the second bearings 22 inside the slider, friction between the slider 5 and the legs is reduced, ensuring smooth movement.

[0036] See also Figure 5 One end of the mounting shaft is provided with a connecting thread, and the side wall of the horizontal slider 5 is provided with a thread matching the connecting thread. One end of the mounting shaft is screwed into the inner side of the horizontal slider 5 and the second locking nut 21 in sequence, and the second locking nut 21 is abutted against the horizontal slider 5 to position the mounting shaft. The second bearing 22 is installed at the end of the mounting shaft away from the second locking nut 21.

[0037] See also Figure 4 and Figure 5A connecting block 16 is provided at the top of the horizontal slider 5, located in the middle of the slider. A connecting hole is provided in the connecting block 16, and the end of the pull rod 4, which is remote from the spindle screw 2, is connected to the connecting hole via a bolt. By placing the connecting block 16 in the middle of the horizontal slider 5, the forces acting on the slider 5 are balanced during sliding, ensuring smooth movement.

[0038] See also Figure 5 Specifically, the end of the pull rod 4 away from the main shaft screw 2 is set as a Y-shaped fork structure, and through holes are set on both side walls of the Y-shaped fork structure. Rivets or bolts pass through the connecting hole 13 and the connecting through hole to hinge the pull rod 4 with the horizontal slider 5. The Y-shaped fork structure can further improve the uniform force of the horizontal slider 5 and ensure the stability of the horizontal slider 5 during movement.

[0039] See also Figure 1 , also includes at least two levels 7 and at least two horizontal bolts 8, each of the levels 7 is respectively provided on the corresponding support leg, each of the support legs is provided with a threaded hole 19, the horizontal bolt 8 is screwed into the corresponding threaded hole 19 and the first locking nut 9 in turn, and the first locking nut 9 is abutted against the corresponding support leg. By providing a horizontal bolt 8 and a level 7 on each support leg, it is convenient to adjust the position of the support leg by adjusting the relative position of the horizontal bolt 8 and the support leg, and to measure whether the support leg is in a horizontal state by using the level 7, so that the support leg works in a horizontal state, ensuring the accuracy of the position of the horizontal slider 5, and then ensuring the accuracy of the position of the embedded bolt. The first locking nut 9 and the horizontal bolt 8 are both made of insulating plastic material.

[0040] See also Figure 6 Each of the legs is provided with a scale 20, which extends along the length of the legs. This allows the operator to directly observe the specific dimensions of the horizontal slider 5 on the legs, thereby further improving the accuracy of the position of the horizontal slider 5.

[0041] See also Figure 1 The positioning plate 6 is provided with a horizontal groove, the bottom of which is parallel to the positioning plate 6. The spirit level 7 is embedded in the horizontal groove and is located on a side away from the scale 20. The base of the spirit level 7 can be made of a strong magnetic material so that the spirit level can be attached to the positioning plate 6 to ensure that the spirit level itself is parallel to the positioning plate 6.

[0042] During the specific operation, first open the positioning plate 6 of the device, then install the horizontal bolts 8 and the first locking nuts 9 at the four corners of the device in turn, and while fixing the horizontal bolts 8, observe whether the spirit level 7 located at the four corners of the positioning plate 6 is in a horizontal state, and adjust the level of the four side bottom plates (that is, each support leg) of the positioning plate 6 one by one until the four support legs are completely level; then, by rotating the adjusting handle 1, the pull rod anchor plate 3 and the pull rod 4 are driven to rotate, thereby driving the horizontal slider 5 to slide horizontally until the horizontal slider 5 is adjusted to the corresponding position where the embedded bolts need to be installed, and then the anchor bolts are fixed in turn on the circular holes of the horizontal slider to ensure that the bolts are perpendicular to the positioning plate, and then the embedded bolts are installed on the bolt positioning structure, and the embedded bolts are clamped by the bolt positioning structure so that the embedded bolts are vertically positioned. After casting and fixing, the positioning device is retracted to achieve rapid positioning and installation.

[0043] Example 2 See also Figure 1 and 7 The difference between this embodiment 2 and embodiment 1 is that the bolt positioning structure includes a positioning tube 15, a radial locking bolt 30 and an expansion rubber tube 34, the top of the positioning tube 15 is connected to the side wall of the central through hole of the corresponding horizontal slider 5, and a limiting portion 32 is provided at the bottom of the positioning tube 15. The axial hole of the expansion rubber tube 34 is matched with the inner cavity of the positioning tube 15 and is located above the limiting portion 32. The inner side wall of the positioning tube 15 is provided with an internal thread that is screwed with the radial locking bolt 30. The inner diameter of the expansion rubber tube 34 is smaller than the outer diameter of the embedded bolt by 0.05mm-0.08mm, and the outer diameter of the expansion rubber tube 34 is larger than the inner diameter of the internal thread. The centers of the positioning tube 15 and the radial locking bolt 30 are both provided with through holes for the embedded bolts to pass through. When the expansion rubber tube 34 is axially compressed, the expansion rubber tube 34 applies a radial clamping force to the embedded bolt. When the embedded bolt needs to be positioned, the radial locking bolt 30 is first screwed into the internal thread of the positioning tube 15. The radial locking bolt 30 gradually axially compresses the expansion rubber tube 34. The inner diameter of the expansion rubber tube 34 will expand evenly, generating a radial clamping force, so that the embedded bolt is vertically positioned on the inner side of the positioning tube 15, preventing the embedded bolt from being displaced or deflected during concrete pouring or concrete curing period, thereby ensuring the installation accuracy of the embedded bolt.

[0044] Example 3 See also Figure 1 and 8The difference between this embodiment 3 and embodiment 1 is that the bolt positioning structure includes a positioning cylinder 15 and a magnet 35. The top of the positioning cylinder 15 is connected to the side wall of the central through hole of the corresponding horizontal slider 5. The bottom of the positioning cylinder 15 is provided with a limiting portion 32. The magnet 35 is cylindrical and tubular. The axial hole of the magnet 35 fits in the inner cavity of the positioning cylinder 15 and is located above the limiting portion 32. The inner cavity diameter of the magnet 35 is larger than the outer diameter of the embedded bolt by 0.03mm-0.05mm and is radially magnetized. The horizontal slider 5, positioning plate 6 and positioning cylinder 15 are all made of plastic or 304 stainless steel, and the embedded bolt is martensitic stainless steel. By setting the magnet 35 to be radially magnetized, the inner and outer rings of the magnet 35 are the N pole and S pole respectively, and the magnetic field lines radially diverge from the inner ring to the outer ring, or converge from the outer ring to the inner ring, so that a uniform radial magnetic field is formed in the center hole of the magnet 35. Then, when the magnetic object (embedded bolts made of martensitic stainless steel) is inserted into the center hole, the magnetic field lines will preferentially pass through the magnetic object to form a closed loop, generating radial attraction, and thus being "clamped" in the center position of the magnet 35. Even when the embedded bolt deviates from the center, the magnetic field gap on the deviated side decreases, the attraction increases, and a "correcting force" is formed, which eventually automatically pulls the object toward the center of the circle to achieve concentric positioning, so that the embedded bolt is vertically positioned on the inner axis of the positioning tube 15, preventing the embedded bolt from displacement or deflection during concrete pouring or concrete curing period, and ensuring the installation accuracy of the embedded bolt.

[0045] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A positioning device for pre-embedded bolts in the foundation of outdoor substation equipment, characterized in that: include: A positioning plate, which is detachably connected to the corresponding base in a working state; a plurality of horizontal sliders, wherein the horizontal sliders are slidably connected to the positioning plate; an adjusting structure, wherein when the adjusting structure is in a rotating state, each of the horizontal sliding blocks slides along the positioning plate; Several bolt positioning structures are connected to the corresponding horizontal sliders to clamp and position the embedded bolts.

2. The outdoor substation equipment foundation embedded bolt positioning device according to claim 1 is characterized in that: The adjustment structure includes a pull rod anchor plate, a main shaft screw and at least two pull rods. The bottom of the main shaft screw is rotatably connected to the positioning plate. The pull rod anchor plate is connected to the main shaft screw so as to be adjustable up and down. The two ends of the pull rod are respectively hinged to the pull rod anchor plate and the corresponding horizontal slider.

3. The outdoor substation equipment foundation embedded bolt positioning device according to claim 2, characterized in that: The tie rod anchor plate is cylindrical, and at least two connecting lugs are provided on the outer circumference of the tie rod anchor plate. The connecting lugs are evenly distributed along the outer circumference of the tie rod anchor plate. One end of each tie rod away from the horizontal slider is connected to the corresponding connecting lug.

4. The outdoor substation equipment foundation embedded bolt positioning device according to claim 2, characterized in that: The positioning plate includes a main shaft mounting portion and at least two supporting legs, the supporting legs are evenly distributed along the outer circumference of the main shaft mounting portion, and the horizontal sliding blocks are respectively arranged on the corresponding supporting legs.

5. The outdoor substation equipment foundation embedded bolt positioning device according to claim 4, characterized in that: Each of the legs is provided with a strip-shaped through hole, which extends along the length direction of the leg, and the bolt positioning structure can move along the corresponding inner cavity of the strip-shaped through hole.

6. The outdoor substation equipment foundation embedded bolt positioning device according to claim 5, characterized in that: The bolt positioning structure includes a positioning cylinder, a radial locking bolt and a bellows. The top of the positioning cylinder is connected to the side wall of the central through hole of the corresponding horizontal slider. The bottom of the positioning cylinder is provided with a limiting portion. The axial hole of the bellows cooperates with the inner cavity of the positioning cylinder and is located above the limiting portion. The inner side wall of the positioning cylinder is provided with an internal thread that is screwed with the radial locking bolt. The axis of the positioning cylinder and the radial locking bolt are both provided with through holes for the embedded bolts to pass through. When the bellows is axially compressed, the bellows applies a radial clamping force to the embedded bolts.

7. The outdoor substation equipment foundation embedded bolt positioning device according to claim 5, characterized in that: The bolt positioning structure includes a positioning tube, a radial locking bolt and an expansion rubber tube. The top of the positioning tube is connected to the side wall of the central through hole of the corresponding horizontal slider. The bottom of the positioning tube is provided with a limiting portion. The axial hole of the expansion rubber tube is matched with the inner cavity of the positioning tube and is located above the limiting portion. The inner side wall of the positioning tube is provided with an internal thread screwed with the radial locking bolt. The centers of the positioning tube and the radial locking bolt are both provided with through holes for the embedded bolts to pass through. When the expansion rubber tube is axially compressed, the expansion rubber tube applies a radial clamping force to the embedded bolts.

8. The outdoor substation equipment foundation embedded bolt positioning device according to claim 5, characterized in that: The bolt positioning structure includes a positioning cylinder and a magnet. The top of the positioning cylinder is connected to the side wall of the central through hole of the corresponding horizontal slider. A limiting portion is provided at the bottom of the positioning cylinder. The magnet is cylindrical and tubular. The magnet shaft hole fits in the inner cavity of the positioning cylinder and is located above the limiting portion. The inner cavity diameter of the magnet is larger than the outer diameter of the embedded bolt by 0.03mm-0.05mm and is radially magnetized. The horizontal slider, positioning plate and positioning cylinder are all made of plastic or 304 stainless steel, and the embedded bolt is martensitic stainless steel.

9. The outdoor substation equipment foundation embedded bolt positioning device according to claim 5, characterized in that: The cross-section of the horizontal slider is n-shaped, and mounting shafts are connected to both sides of the horizontal slider. The virtual axis of the mounting shafts is parallel to the top of the horizontal slider. Second bearings are sleeved on the mounting shafts. The second bearings are located on the inner side of the horizontal slider, and the outer rings of the second bearings are in sliding contact with the bottom of the corresponding support legs.

10. The outdoor substation foundation embedded bolt positioning device according to any one of claims 5 to 9, characterized in that: It also includes at least two levels and at least two horizontal bolts, each of the levels is respectively arranged on the corresponding support leg, each of the support legs is provided with a threaded hole, the horizontal bolts are screwed into the corresponding threaded hole and the first locking nut in turn, and the first locking nut is abutted against the corresponding support leg.

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