Flange bolt fastener for air duct

Abstract

The present invention discloses a flange bolt fixer for air ducts, which relates to the technical field of bolt fixers and includes a workbench, a locking assembly, and a docking assembly. A first motor is provided at the left inner end of the workbench, and a bidirectional screw is provided at the output end of the first motor, and a sliding seat is connected to the outer end of the bidirectional screw. A sliding plate is provided at the outer end of the sliding seat, and a bearing seat is provided on the inner side of the sliding plate. The locking assembly is provided on the inner side of the bearing seat, and a second motor is provided on both sides of the inner side of the workbench. The device of the present invention rotates concentrically with the flange and the air duct to achieve flange bolt locking, wherein the thickness of the arc plate after being placed at the outer end of the air duct does not exceed the thickness of the flange, and the workbench is tightly attached to the top of the flange. The bolt tightening method of the device does not need to consider space issues, which can effectively avoid the situation where the bolt cannot be tightened due to interference between the device and external objects when the air duct is placed near a corner.

Description

Technical Field

[0001] The present invention relates to the technical field of bolt fixers, in particular to a flange bolt fixer for an air duct. Background Art

[0002] There are many ways to connect air ducts, such as strip connection, thin steel plate flange connection, flangeless connection, etc., but flange connection is still the most widely used method. Among them, flange connection is used for air ducts, which can achieve the best sealing effect and the highest strength. In addition, the air ducts of the smoke exhaust system must be connected with flanges to ensure their sealing.

[0003] When installing air ducts, it is often encountered that the air duct is close to the top floor or there is a wall on one side of the air duct. This will cause blind spots or interference between the air duct and external objects during installation, making it difficult to use a conventional wrench to tighten the flange. As a result, the bolts of some flanges of the air duct cannot be fully tightened, thereby affecting the testing of the air duct and the realization of system functions.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a flange bolt fastener for air duct is proposed. Summary of the Invention

[0005] The object of the present invention is to provide a flange bolt fastener for an air duct to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a flange bolt fixer for an air duct, comprising a workbench, a locking assembly and a docking assembly, a first motor being provided at the left inner end of the workbench, and a bidirectional lead screw being provided at the output end of the first motor, and a sliding seat being connected at the outer end of the bidirectional lead screw, a sliding plate being provided at the outer end of the sliding seat, and a bearing seat being provided at the inner side of the sliding plate, the locking assembly being provided at the inner side of the bearing seat, second motors being provided at both inner sides of the workbench, and a driving gear being connected at the output end of the second motor, a steering assembly being provided at the outer side of the bottom of the workbench, and adjustment grooves being provided at both outer sides of the workbench, and the docking assembly being provided at the outer side of the bottom of the steering assembly.

[0007] Furthermore, the first motor drives the bidirectional lead screw to rotate, and the sliding seats are provided at both ends of the bidirectional lead screw.

[0008] Furthermore, the locking assembly includes a locking shaft, a docking groove and a driven gear sleeve. The inner side of the locking shaft is provided with a docking groove, and the outer end of the locking shaft is provided with a driven gear sleeve.

[0009] Furthermore, the sliding seat is fixedly connected to the sliding plate, and the sliding plate is sleeve-connected to the locking shaft via a bearing seat.

[0010] Furthermore, the locking shaft is fixedly connected to the driven gear sleeve, and the driven gear sleeve and the driving gear are meshed with each other.

[0011] Furthermore, the steering assembly includes a steering seat, a right-angle frame and a locking bolt. The right-angle frame is provided on the outer side of the top of the steering seat, and the locking bolt is provided on the inner side of the right-angle frame.

[0012] Furthermore, the steering seat is fixedly connected to the right-angle frame, and the right-angle frame is fixedly connected to the workbench by locking the locking bolt and the adjustment groove.

[0013] Furthermore, the docking assembly includes an arc-shaped plate, a strong magnet, an electric push rod, a third motor and a drive wheel. A strong magnet is provided at the end of the arc-shaped plate, and an electric push rod is provided at the outer end of the arc-shaped plate. The output end of the electric push rod is provided with a third motor, and the output end of the third motor is connected to the drive wheel.

[0014] Furthermore, the arc-shaped plate is rotatably connected to the steering seat, and the two arc-shaped plates are butted together to form a perfect circle.

[0015] Furthermore, the third motor drives the driving wheel to rotate, and the outer surface of the driving wheel fits with the outer surface of the air duct.

[0016] The present invention provides a flange bolt fastener for an air duct, which has the following beneficial effects:

[0017] 1. When the first motor of the present invention is working, it can drive the bidirectional screw to rotate. When the bidirectional screw rotates, it can drive the sliding plate to move to one side of the vertical center line of the workbench. During the displacement process, the sliding plate can drive the position of the bolt at the outer end of the locking axial flange to approach. The shape of the docking groove inside the locking shaft is consistent with the shape of the bolt. This makes it possible for the docking groove to dock with the bolt after the locking shaft approaches the bolt. After the docking of the docking groove and the bolt is completed, the driving gear is driven by the second motor to rotate, which can drive the driving gear to drive the driven gear sleeve to rotate. Since the driven gear sleeve is fixed to the locking shaft, the locking shaft can tighten the bolt of the flange by rotation. After the bolt is tightened, the bidirectional screw drives the locking shaft to retreat, which can separate the locking shaft from the bolt, and the third motor drives The rotation of the driving wheel can make the driving wheel rotate at the outer end of the air duct, and during the rotation of the driving wheel, it can drive the workbench to move at the outer end of the flange, so that the workbench can drive the locking shaft to approach the bolts at other positions of the outer end of the flange. By repeating the above operations, the equipment can tighten the flange at all positions of the outer end of the flange. During the above operation, the equipment rotates with the flange and the air duct as concentric circles to achieve flange bolt locking. The thickness of the arc plate after being placed at the outer end of the air duct does not exceed the thickness of the flange, and the workbench is close to the top of the flange. The bolt tightening method of the equipment does not need to consider space issues, which can effectively avoid the situation where the air duct is placed near a corner and the equipment interferes with external objects, resulting in the bolts being unable to be tightened.

[0018] 2. In the process of installing the air duct and the flange surface, the present invention only needs to buckle the curved plate at the outer end of the air duct and make the bottom end of the workbench fit with the top end of the flange to achieve installation, which can greatly improve the installation convenience of the equipment. In addition, in the process of buckling the curved plate and the air duct, since the curved plate at the left end and the curved plate at the right end are both connected to the workbench, the two sets of curved plates can always maintain the same height, and the two sets of curved plates can support the air duct during the buckling process of the air duct, which can ensure that the air ducts at both ends of the equipment always maintain the same height, so as to ensure the position accuracy of the air duct docking after the flange bolts are tightened. In addition, thanks to the circular tightening method of the equipment, it can effectively adapt to the rule that "the flange bolts should be tightened symmetrically and evenly, not excessively, and the two flanges should be kept parallel and concentric after the bolts are tightened, and during the installation process, do not use strong pulling, strong pushing, strong twisting and other methods to make up for manufacturing or installation errors". This improves the stability of the flange after installation.

[0019] 3. The present invention works through an electric push rod, which can drive the third motor and the driving wheel to move, so that the position of the driving wheel on the inner side of the arc plate can be changed. By changing the position of the driving wheel, it can fit with the diameter of the air duct, which enables the equipment to adapt to air ducts of different diameters. In addition, by loosening the locking bolt on the inner side of the right-angle frame, the lock between the right-angle frame and the workbench can be released. At this time, pulling the workbench can change the locking position between the workbench and the right-angle frame. By changing the locking position of the workbench and the right-angle frame, the workbench can fit with flanges of different diameters, so that the equipment can adapt to flanges of different diameters. Through the above operations, the flexibility of use of the equipment can be greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view schematic diagram of the overall structure of a flange bolt fastener for an air duct according to the present invention;

[0021] Figure 2 This is a schematic structural diagram of a driven gear sleeve structure of a flange bolt fastener for an air duct according to the present invention;

[0022] Figure 3 This is a front view structural diagram of a docking assembly of a flange bolt fastener for an air duct according to the present invention;

[0023] Figure 4 This is a schematic diagram of the sliding plate structure of a flange bolt fastener for an air duct according to the present invention;

[0024] Figure 5 The present invention is a schematic diagram of the driving wheel structure of a flange bolt fastener for an air duct.

[0025] In the figure: 1. workbench; 2. first motor; 3. bidirectional lead screw; 4. sliding seat; 5. sliding plate; 6. bearing seat; 7. locking assembly; 701. locking shaft; 702. docking groove; 703. driven gear sleeve; 8. second motor; 9. driving gear; 10. steering assembly; 1001. steering seat; 1002. right-angle bracket; 1003. locking bolt; 11. adjustment groove; 12. docking assembly; 1201. curved plate; 1202. strong magnet; 1203. electric push rod; 1204. third motor; 1205. driving wheel. Implementation Method

[0026] See also Figures 1 to 5 The present invention provides a technical solution: a flange bolt fixer for an air duct, comprising a workbench 1, a locking assembly 7 and a docking assembly 12, a first motor 2 is provided at the left end inside the workbench 1, and a bidirectional screw 3 is provided at the output end of the first motor 2, and the outer end of the bidirectional screw 3 is connected to a sliding seat 4, a sliding plate 5 is provided at the outer end of the sliding seat 4, and a bearing seat 6 is provided on the inner side of the sliding plate 5, the locking assembly 7 is provided on the inner side of the bearing seat 6, second motors 8 are provided on both sides of the interior of the workbench 1, and the output end of the second motor 8 is connected to a driving gear 9, a steering assembly 10 is provided on the outer side of the bottom of the workbench 1, and adjustment grooves 11 are opened on both sides of the outside of the workbench 1, and the docking assembly 12 is provided on the outer side of the bottom of the steering assembly 10.

[0027] See also Figures 1 to 5, the first motor 2 drives the bidirectional screw 3 to rotate, and the sliding seat 4 is provided at both ends of the bidirectional screw 3, the locking assembly 7 includes a locking shaft 701, a docking groove 702 and a driven gear sleeve 703, the inner side of the locking shaft 701 is provided with a docking groove 702, and the outer end of the locking shaft 701 is provided with a driven gear sleeve 703, the sliding seat 4 is fixedly connected to the sliding plate 5, and the sliding plate 5 is sleeved with the locking shaft 701 through the bearing seat 6, the locking shaft 701 is fixedly connected to the driven gear sleeve 703, and the driven gear sleeve 703 is meshed with the driving gear 9, the steering assembly 10 includes a steering seat 1001, a right-angle frame 1002 and a locking bolt 1003, a right-angle frame 1002 is provided on the top outer side of the steering seat 1001, and a locking bolt 1003 is provided on the inner side of the right-angle frame 1002, the steering seat 1001 and The right-angle frame 1002 is fixedly connected, and the right-angle frame 1002 is fixedly connected to the workbench 1 by locking the locking bolt 1003 and the adjustment slot 11. The docking assembly 12 includes a curved plate 1201, a strong magnet 1202, an electric push rod 1203, a third motor 1204 and a driving wheel 1205. The end of the curved plate 1201 is provided with a strong magnet 1202, and the outer end of the curved plate 1201 is provided with an electric push rod 1203. The output end of the electric push rod 1203 is provided with a third motor 1204, and the output end of the third motor 1204 is connected to the driving wheel 1205. The curved plate 1201 is rotatably connected to the steering seat 1001, and the two curved plates 1201 are docked to form a perfect circle. The third motor 1204 drives the driving wheel 1205 to rotate, and the outer surface of the driving wheel 1205 fits the outer surface of the air duct;

[0028] The specific operation is as follows: the staff screws the bolts into the inside of the flange by hand to make the bolts virtually connected inside the flange. Then the staff places the workbench 1 on the top of the flange and presses down the arc plate 1201 at the same time, so that the arc plate 1201 can rotate through the steering seat 1001, which enables the steering seat 1001 to drive the arc plate 1201 to rotate and move downward, so that the arc plate 1201 can wrap the air duct and at the same time enable the driving wheel 1205 to fit the surface of the air duct. When the two arc plates 1201 wrap the air duct, the strong magnets 1202 at the bottom of the two can be attracted to each other. By making the strong magnets 1202 attract each other, the arc plates 1201 can be interlocked to form a perfect circle. After the interlocking of the arc plates 1201 is completed, through the When the first motor 2 is working, it can drive the bidirectional screw 3 to rotate. When the bidirectional screw 3 rotates, it can drive the sliding plate 5 to move to one side of the vertical center line of the workbench 1. During the displacement process, the sliding plate 5 can drive the locking shaft 701 to approach the position of the bolt at the outer end of the flange. The shape of the docking groove 702 inside the locking shaft 701 is consistent with the shape of the bolt. This allows the locking shaft 701 to approach the bolt and enable the docking groove 702 to dock with the bolt. After the docking groove 702 and the bolt are docked, the second motor 8 drives the driving gear 9 to rotate, which can drive the driving gear 9 to rotate the driven gear sleeve 703. Because the driven gear sleeve 703 is fixed to the locking shaft 701, the locking shaft 701 can tighten the bolt of the flange by rotation. After the bolt is tightened, the The screw 3 drives the locking shaft 701 to retract, which can separate the locking shaft 701 from the bolt, and the third motor 1204 drives the driving wheel 1205 to rotate, which can make the driving wheel 1205 rotate at the outer end of the air duct. During the rotation of the driving wheel 1205, it can drive the workbench 1 to move at the outer end of the flange, which enables the workbench 1 to drive the locking shaft 701 to approach the bolts at other positions of the outer end of the flange. By repeating the above operations, the equipment can tighten the flange at all positions of the outer end of the flange. During the above operations, the equipment rotates with the flange and the air duct as concentric circles to realize flange bolt locking, wherein the thickness of the arc plate 1201 after being placed at the outer end of the air duct does not exceed the thickness of the flange, and the workbench 1 is close to the top of the flange, and the bolts of the equipment are tightened. The tightening method does not need to consider space issues, which can effectively avoid the situation where the equipment interferes with external objects when the air duct is placed near the corner of the wall, resulting in the inability to tighten the bolts. In addition, during the installation of the equipment on the air duct and the flange surface, it is only necessary to buckle the curved plate 1201 at the outer end of the air duct, and make the bottom end of the workbench 1 fit with the top end of the flange to achieve installation, which can greatly improve the installation convenience of the equipment. In addition, in the process of buckling the curved plate 1201 with the air duct, because the curved plate 1201 at the left end and the curved plate 1201 at the right end are both connected to the workbench 1, this makes the two sets of curved plates 1201 always keep the same height, and the two sets of curved plates 1201 can support the air duct during the buckling process of the air duct, which can ensure that the air ducts at both ends of the equipment always keep the same height.To ensure the position accuracy of the air duct docking after the flange bolts are tightened, in addition, thanks to the circumferential tightening method of the equipment, it can effectively adapt to the rules of "should be tightened symmetrically and evenly, not excessively, and after the bolts are tightened, the two flanges should remain parallel and concentric, and during the installation process, do not use strong pulling, strong pushing, strong twisting and other methods to make up for manufacturing or installation errors". This improves the stability of the flange after installation. In addition, during use, the equipment can drive the third motor 1204 and the drive wheel 1205 to move through the electric push rod 1203, which makes the drive wheel 1205 move on the inner side of the curved plate 1201. The position of the drive wheel 1205 can be changed, and by changing the position of the drive wheel 1205, it can fit with the diameter of the air duct, which makes the device adaptable to air ducts of different diameters. In addition, by loosening the locking bolt 1003 on the inner side of the right-angle frame 1002, the lock between the right-angle frame 1002 and the workbench 1 can be released. At this time, pulling the workbench 1 can change the locking position between the workbench 1 and the right-angle frame 1002. By changing the locking position of the workbench 1 and the right-angle frame 1002, the workbench 1 can fit with flanges of different diameters, so that the device can adapt to flanges of different diameters. Through the above operations, the flexibility of the device can be greatly improved.

[0029] In summary, when using the flange bolt fastener for air ducts, the worker first screws the bolts into the inner side of the flange by hand to make the bolts virtually connected inside the flange. Then, the worker places the workbench 1 on the top of the flange and presses down the curved plate 1201 at the same time, so that the curved plate 1201 can rotate through the steering seat 1001, which enables the steering seat 1001 to drive the curved plate 1201 to rotate and move downward, so that the curved plate 1201 can wrap the air duct and at the same time enable the driving wheel 1205 to fit the surface of the air duct. When the two curved plates 1201 wrap the air duct, the strong magnets 1202 at the bottom of the two can be attracted to each other. By making the strong magnets 1202 attract each other, the curved plates 1201 can be interlocked to form a perfect circle.

[0030] After the interlocking of the arc plate 1201 is completed, the first motor 2 works to drive the bidirectional screw 3 to rotate. When the bidirectional screw 3 rotates, it can drive the sliding plate 5 to move to one side of the vertical center line of the workbench 1. During the displacement process, the sliding plate 5 can drive the locking shaft 701 to approach the position of the bolt at the outer end of the flange. The shape of the docking groove 702 inside the locking shaft 701 is consistent with the shape of the bolt, so that after the locking shaft 701 approaches the bolt, the docking groove 702 can dock with the bolt. After the docking groove 702 and the bolt are docked, the second motor 8 drives the driving gear 9 to rotate, which can drive the driving gear 9 to drive the driven gear sleeve 703 to rotate. Because the driven gear sleeve 703 is fixed to the locking shaft 701, the locking shaft 701 can tighten the bolt of the flange by rotation;

[0031] After the bolts are tightened, the bidirectional lead screw 3 drives the locking shaft 701 to retract, so that the locking shaft 701 can be separated from the bolts, and the third motor 1204 drives the driving wheel 1205 to rotate, so that the driving wheel 1205 can rotate at the outer end of the air duct. During the rotation of the driving wheel 1205, the workbench 1 can be driven to move at the outer end of the flange, so that the workbench 1 can drive the locking shaft 701 to approach bolts at other positions of the outer end of the flange. By repeating the above operations, the device can tighten the flanges at all positions of the outer end of the flange.

[0032] Finally, during use of the equipment, the electric push rod 1203 can drive the third motor 1204 and the driving wheel 1205 to move, so that the position of the driving wheel 1205 on the inner side of the arc plate 1201 can be changed. By changing the position of the driving wheel 1205, it can fit with the diameter of the air duct, which enables the equipment to adapt to air ducts of different diameters. In addition, by loosening the locking bolt 1003 on the inner side of the right-angle frame 1002, the lock between the right-angle frame 1002 and the workbench 1 can be released. At this time, pulling the workbench 1 can change the locking position between the workbench 1 and the right-angle frame 1002. By changing the locking position of the workbench 1 and the right-angle frame 1002, the workbench 1 can fit with flanges of different diameters, so that the equipment can adapt to flanges of different diameters.

[0033] The embodiments of the present invention are presented for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as suited for specific applications.

Claims

1. A flange bolt fastener for an air duct, characterized in that: The invention comprises a workbench (1), a locking assembly (7) and a docking assembly (12), wherein a first motor (2) is provided at the left end of the interior of the workbench (1), and a bidirectional screw (3) is provided at the output end of the first motor (2), and the outer end of the bidirectional screw (3) is connected to a sliding seat (4), a sliding plate (5) is provided at the outer end of the sliding seat (4), and a bearing seat (6) is provided on the inner side of the sliding plate (5), and the locking assembly (7) is provided on the inner side of the bearing seat (6), a second motor (8) is provided on both sides of the interior of the workbench (1), and the output end of the second motor (8) is connected to a driving gear (9), a steering assembly (10) is provided on the outer side of the bottom of the workbench (1), and adjustment grooves (11) are provided on both sides of the exterior of the workbench (1), and the docking assembly (12) is provided on the inner side of the steering assembly (10). On the outside of the bottom, the docking assembly (12) comprises an arc-shaped plate (1201), a strong magnet (1202), an electric push rod (1203), a third motor (1204) and a driving wheel (1205); the end of the arc-shaped plate (1201) is provided with a strong magnet (1202), and the outer end of the arc-shaped plate (1201) is provided with an electric push rod (1203); the output end of the electric push rod (1203) is provided with a third motor (1204), and the output end of the third motor (1204) is connected to the driving wheel (1205); the arc-shaped plate (1201) is rotatably connected to the steering seat (1001), and the two arc-shaped plates (1201) are docked to form a perfect circle; the third motor (1204) drives the driving wheel (1205) to rotate, and the outer surface of the driving wheel (1205) is in contact with the outer surface of the air duct.

2. The flange bolt fastener for air duct according to claim 1, characterized in that: The first motor (2) drives the bidirectional lead screw (3) to rotate, and the sliding seat (4) is provided at both ends of the bidirectional lead screw (3).

3. The flange bolt fastener for air duct according to claim 1, characterized in that: The locking assembly (7) comprises a locking shaft (701), a docking groove (702) and a driven gear sleeve (703); the docking groove (702) is provided on the inner side of the locking shaft (701), and the driven gear sleeve (703) is provided on the outer end of the locking shaft (701).

4. The flange bolt fastener for air duct according to claim 3, characterized in that: The sliding seat (4) is fixedly connected to the sliding plate (5), and the sliding plate (5) is sleeve-connected to the locking shaft (701) via the bearing seat (6).

5. The flange bolt fastener for air duct according to claim 3, characterized in that: The locking shaft (701) is fixedly connected to the driven gear sleeve (703), and the driven gear sleeve (703) and the driving gear (9) are meshed with each other.

6. The flange bolt fastener for air duct according to claim 1, characterized in that: The steering assembly (10) comprises a steering seat (1001), a right-angle frame (1002) and a locking bolt (1003); the right-angle frame (1002) is provided on the outer side of the top of the steering seat (1001), and the locking bolt (1003) is provided on the inner side of the right-angle frame (1002).

7. The flange bolt fastener for air duct according to claim 6, characterized in that: The steering seat (1001) is fixedly connected to the right-angle frame (1002), and the right-angle frame (1002) is fixedly connected to the workbench (1) by locking the locking bolt (1003) and the adjustment groove (11).

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