Adjustable screw fixing device

Abstract

The utility model relates to the technical field of screw rod fixing devices, in particular to an adjustable screw rod fixing device which comprises two supporting plates, connecting blocks are symmetrically and fixedly installed on the surfaces of the two supporting plates, inserting holes are formed in the surfaces of the connecting blocks, a connecting bolt is arranged between every two connecting blocks, and the connecting bolts are fixedly connected with the supporting plates. Arc-shaped screw holes are formed in the surfaces of the two supporting plates, mounting blocks are fixedly mounted on the surfaces of the supporting plates, moving holes are formed in the surfaces of the mounting blocks, moving rods are slidably inserted into the moving holes, telescopic springs sleeve the moving rods, and strip-shaped blocks are fixedly mounted at one ends of the moving rods; clamping blocks are symmetrically installed on the strip-shaped block in a sliding mode, and a transmission assembly is arranged on the supporting plate. The screw fastening device plays a role in fastening the screw, prevents the screw from swinging and moving, can ensure that the screw is fastened in complex environments such as pumped storage and the like, and creates favorable conditions for safe and stable operation of a power station.

Description

Technical Field

[0001] The utility model relates to the technical field of screw rod fixing devices, in particular to an adjustable screw rod fixing device. Background Art

[0002] With the development of economy and society, modern society has higher and higher requirements for productivity. People regard safe production as the top priority. In power plants and pumped storage power stations, screws are a commonly used mechanical device. When the volute or other large equipment is hoisted and aligned with the holes, it is often necessary to connect them with each other through screws.

[0003] When connecting through a screw rod, one end of the screw rod needs to be aligned with the connecting hole. However, during the lifting process, the screw rod is prone to shaking and swaying, which makes it more difficult to align the hole. In serious cases, it will affect the safety quality of the unit and the progress of the project. Utility Model Content

[0004] The purpose of the utility model is to solve the following shortcomings in the prior art: during the lifting process, the screw rod is prone to shaking and swaying, which increases the difficulty of hole alignment, which in serious cases will affect the safety quality of the unit and the progress of the project, and an adjustable screw rod fixing device is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An adjustable screw fixing device comprises two support plates, the surfaces of the two support plates are symmetrically fixed with connection blocks, the surfaces of the plurality of connection blocks are provided with insertion holes, a connection bolt is provided between every two connection blocks, the connection bolt is inserted into the insertion hole, and the surfaces of the two support plates are provided with arc-shaped screw holes;

[0007] A mounting block is fixedly installed on the surface of the support plate, a moving hole is opened on the surface of the mounting block, a moving rod is slidably inserted in the moving hole, a round block is fixedly installed on one end of the moving rod, a telescopic spring is sleeved on the moving rod, two ends of the telescopic spring are respectively fixedly connected to the round block and the mounting block, a strip block is fixedly installed on one end of the moving rod, a clamping block is symmetrically slidably installed on the strip block through a sliding assembly, and a transmission assembly for driving the moving rod to move toward the screw hole is provided on the support plate.

[0008] Preferably, the transmission assembly includes two connecting rods, two first spring rods, two rectangular rods and a moving part arranged on the connecting block for driving the rectangular rods to move, the two connecting rods are symmetrically fixedly installed on the moving rods, one end of the two first spring rods is respectively fixedly connected to the two connecting rods, and the other end is respectively fixedly connected to the two rectangular rods, and the elastic coefficient of the first spring rod is greater than the elastic coefficient of the telescopic spring.

[0009] Preferably, the moving component includes two slide rails, two sliders and a baffle, the two slide rails are symmetrically fixedly installed on the connecting block, the two sliders are respectively slidably installed on the two slide rails, the baffle is fixedly installed between the two sliders, and one end of the rectangular rod is fixedly connected to the side of the baffle.

[0010] Preferably, a movable groove is provided on the surface of the bar block, and the sliding assembly includes two movable blocks, which are symmetrically slidably installed in the movable groove, and the two movable blocks are respectively fixedly connected to two clamping blocks, and a locking assembly for locking the two movable blocks is provided on the bar block.

[0011] Preferably, a plurality of limit holes are provided at the upper end of the bar block, a positioning hole is provided at the upper ends of the two moving blocks, the locking assembly comprises two second spring rods, two L-shaped rods, a cross rod and a plurality of limit rods, the two second spring rods are symmetrically fixedly mounted on the bar block, the two L-shaped rods are respectively fixedly connected to one end of the two second spring rods, the cross rod is fixedly mounted between the two L-shaped rods, the plurality of limit rods are fixedly mounted on the lower surface of the cross rod, the plurality of limit rods are respectively inserted into the plurality of limit holes, wherein one end of the two limit rods are respectively inserted into the two positioning holes.

[0012] Preferably, a pull block is fixedly mounted on the surface of the cross bar.

[0013] Preferably, the surface of the pull block is provided with anti-slip grooves.

[0014] Preferably, one end of each of the clamping blocks is an arc-shaped end, and a protective pad is fixedly mounted on the arc-shaped end surface of the clamping block.

[0015] Preferably, anti-slip pads are fixedly mounted on the lower surfaces of the two support plates.

[0016] Preferably, the anti-slip pad is made of rubber.

[0017] In the utility model, the beneficial effects are:

[0018] 1. When in use, put the fixing device on the screw, then install the two support plates together through the connecting bolts, and then drive multiple clamps to contact the screw through two moving rods, so as to tighten the screw and prevent the screw from swinging. It can ensure the tightening of the screw in complex environments such as pumped storage, creating favorable conditions for the safe and stable operation of the power station. When the hoisting is completed, the two support plates can be disassembled by loosening the connecting bolts, and the fixing device can be removed to complete the hoisting;

[0019] 2. Under the action of the transmission assembly, when the two support plates are connected together by the connecting bolts, the moving rod on the support plate will be driven to move toward the screw rod. When the screw rod needs to be tightened, it only needs one step to complete. The operation is simple and time-saving.

[0020] 3. Through the cooperation of the bar block, the sliding assembly, the locking assembly and the moving block, the distance between the two clamping blocks on the bar block can be adjusted, so that screws of different diameters can be tightened, effectively improving the practicability of the fixing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 This is a three-dimensional structural schematic diagram of an adjustable screw fixing device proposed by the utility model;

[0023] Figure 2 This is a schematic diagram of a three-dimensional exploded structure of a strip block in an adjustable screw fixing device proposed by the utility model;

[0024] Figure 3 for Figure 1 A magnified view of the structure at center;

[0025] Figure 4 for Figure 1 Enlarged view of the structure at point B in the middle.

[0026] In the figure: 1 support plate, 2 connecting block, 3 connecting bolt, 4 screw hole, 5 mounting block, 6 moving rod, 7 round block, 8 telescopic spring, 9 strip block, 10 clamping block, 11 connecting rod, 12 first spring rod, 13 rectangular rod, 14 slide rail, 15 slider, 16 baffle, 17 moving block, 18 second spring rod, 19 L-shaped rod, 20 cross rod, 21 limit rod, 22 pull block. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Reference Figure 1-Figure 4 An adjustable screw fixing device includes two support plates 1, and connecting blocks 2 are symmetrically fixedly installed on the surfaces of the two support plates 1. Plug holes are opened on the surfaces of multiple connecting blocks 2, and connecting bolts 3 are arranged between every two connecting blocks 2. The connecting bolts 3 are inserted into the plug holes, and arc-shaped screw holes 4 are opened on the surfaces of the two support plates 1.

[0029] When the two support plates 1 need to be connected together, one end of the connecting bolt 3 is inserted into the socket opened in the connecting block 2 on the two support plates 1, and then the nut is sleeved on the connecting bolt 3, and the two connecting blocks 2 on the two support plates 1 are connected together through the connecting bolt 3, thereby realizing the connection of the two support plates 1.

[0030] After the two support plates 1 are connected together, the two screw holes 4 thereof will form a circular hole, and the screw to be tightened is inserted into the screw hole 4 .

[0031] A mounting block 5 is fixedly mounted on the surface of the support plate 1, a moving hole is opened on the surface of the mounting block 5, a moving rod 6 is slidably inserted in the moving hole, a round block 7 is fixedly mounted on one end of the moving rod 6, a telescopic spring 8 is sleeved on the moving rod 6, and both ends of the telescopic spring 8 are respectively fixedly connected to the round block 7 and the mounting block 5, a strip block 9 is fixedly mounted on one end of the moving rod 6, a clamping block 10 is symmetrically slidably mounted on the strip block 9 through a sliding assembly, and a transmission assembly for driving the moving rod 6 to move toward the screw hole 4 is provided on the support plate 1.

[0032] When the screw is inserted into the screw hole 4, the moving rod 6 is driven to move in the direction of the screw under the action of the transmission assembly. During the movement of the moving rod 6, the round block 7 moves the telescopic spring 8, and the mounting block 5 limits the movement of one end of the telescopic spring 8, thereby squeezing the telescopic spring 8 to compress. When the moving rod 6 moves, the clamping block 10 is driven to move in the direction of the screw through the strip block 9 until the clamping block 10 contacts the screw. The multiple clamping blocks 10 on the two support plates 1 surround the screw and apply force to the screw. Under the action of the force, the screw is tightened to prevent the screw from swinging.

[0033] When the hoisting is completed, the two support plates 1 can be separated by loosening the connecting bolts 3, and the fixing device can be removed to complete the hoisting, which creates favorable conditions for the safe and stable operation of the power station.

[0034] The transmission assembly includes two connecting rods 11, two first spring rods 12, two rectangular rods 13 and a moving part arranged on the connecting block 2 for driving the rectangular rods 13 to move. The two connecting rods 11 are symmetrically fixedly installed on the moving rod 6. One ends of the two first spring rods 12 are respectively fixedly connected to the two connecting rods 11, and the other ends are respectively fixedly connected to the two rectangular rods 13. The elastic coefficient of the first spring rod 12 is greater than the elastic coefficient of the telescopic spring 8.

[0035] The moving component will drive the rectangular rod 13 to move toward the connecting block 2, because the elastic coefficient of the first spring rod 12 is greater than the elastic coefficient of the telescopic spring 8. Therefore, when the rectangular rod 13 moves, it will first drive the moving rod 6 to move through the connecting rod 11, and the telescopic spring 8 will be compressed until the clamping block 10 contacts the screw rod, and the screw rod will limit the movement of the moving rod 6. At this time, the first spring rod 12 will begin to stretch to ensure that the rectangular rod 13 can continue to move toward the connecting block 2.

[0036] When the first spring rod 12 is stretched, the movable rod 6 has a movement tendency to move toward the screw rod. However, the force of the screw rod swinging during hoisting will not be greater than the elastic force of the first spring rod 12. Under the action of the elastic force, the screw rod will not swing.

[0037] The moving parts include two slide rails 14, two sliders 15 and a baffle 16. The two slide rails 14 are symmetrically fixedly installed on the connecting block 2. The two sliders 15 are slidably installed on the two slide rails 14 respectively. The baffle 16 is fixedly installed between the two sliders 15. One end of the rectangular rod 13 is fixedly connected to the side of the baffle 16.

[0038] When the two connecting bolts 3 connect the two support plates 1 together, the two ends of the connecting bolts 3 will contact the baffle 16, thereby driving the baffle 16 to move toward the connecting block 2. The slider 15 and the slide rail 14 support the baffle 16. The slider 15 can move on the slide rail 14 to ensure that the baffle 16 can move smoothly toward the connecting block 2.

[0039] When the baffle 16 moves, it will drive the rectangular rod 13 to move, and then drive the moving rod 6 to move through the first spring rod 12 and the connecting rod 11 until the clamping block 10 contacts the screw rod, and the baffle 16 then stretches the first spring rod 12 through the rectangular rod 13 until the connecting bolt 3 connects the support plate 1 together.

[0040] A moving groove is provided on the surface of the bar block 9 , and the sliding assembly includes two moving blocks 17 , which are symmetrically slidably installed in the moving groove. The two moving blocks 17 are respectively fixedly connected to the two clamping blocks 10 , and a locking assembly for locking the two moving blocks 17 is provided on the bar block 9 .

[0041] The moving block 17 can move in the moving groove, thereby adjusting the distance between the two clamping blocks 10 to meet the needs of screws with different diameters. After the adjustment is completed, the two moving blocks 17 are locked by the locking assembly.

[0042] A plurality of limiting holes are provided at the upper end of the bar block 9, and a positioning hole is provided at the upper ends of the two moving blocks 17. The locking assembly includes two second spring rods 18, two L-shaped rods 19, a cross rod 20 and a plurality of limiting rods 21. The two second spring rods 18 are symmetrically fixedly installed on the bar block 9, the two L-shaped rods 19 are respectively fixedly connected to one end of the two second spring rods 18, the cross rod 20 is fixedly installed between the two L-shaped rods 19, and the plurality of limiting rods 21 are fixedly installed on the lower surface of the cross rod 20. The plurality of limiting rods 21 are respectively inserted in the plurality of limiting holes, wherein one end of the two limiting rods 21 are respectively inserted in the two positioning holes.

[0043] When the distance between the two clamping blocks 10 needs to be adjusted, the cross bar 20 is driven to move vertically upward, and the second spring rod 18 is stretched until the limit rod 21 is moved out of the positioning hole. At this time, the moving block 17 is moved again to align the positioning hole formed in the moving block 17 with the other limit rod 21, and then the cross bar 20 is released. Under the action of the elastic force of the second spring rod 18, the limit rod 21 is inserted into the positioning hole, and the moving block 17 is locked again.

[0044] A pull block 22 is fixedly mounted on the surface of the cross bar 20 . The surface of the pull block 22 is provided with anti-skid grooves. The cross bar 20 can be driven to move vertically upward by pulling the pull block 22 . The anti-skid grooves can increase the friction between the finger and the pull block 22 .

[0045] One end of each of the clamping blocks 10 is an arc-shaped end, and a protective pad is fixedly installed on the arc-shaped end surface of the clamping block 10. When the clamping block 10 contacts the screw rod, the protective pad can protect the screw rod.

[0046] Anti-skid pads are fixedly installed on the lower surfaces of the two support plates 1. The anti-skid pads are made of rubber material. The anti-skid pads can increase the friction between the support plates 1 and the supporting positions to prevent the support plates 1 from moving.

[0047] In the utility model, after the screw is inserted into the screw hole 4, the moving rod 6 is driven to move in the direction of the screw under the action of the transmission assembly. During the movement of the moving rod 6, the round block 7 moves the telescopic spring 8, and the mounting block 5 limits the movement of one end of the telescopic spring 8, thereby squeezing the telescopic spring 8 to compress. When the moving rod 6 moves, the clamping block 10 is driven to move in the direction of the screw through the strip block 9 until the clamping block 10 contacts the screw. The multiple clamping blocks 10 on the two support plates 1 surround the screw and apply force to the screw. Under the action of the force, the screw is tightened to prevent the screw from swinging and moving. The screw can be tightened in complex environments such as pumped storage, creating favorable conditions for the safe and stable operation of the power station.

[0048] When the hoisting is completed, the two support plates 1 can be separated by loosening the connecting bolts 3, and the fixing device can be removed to complete the hoisting.

[0049] In general, in view of the technical problem that during the hoisting process, the screw rod is prone to shaking and swaying, which increases the difficulty of hole alignment, and in serious cases affects the safety quality of the unit and the progress of the project; a technical solution is adopted: the two support plates 1 are installed together by connecting bolts 3, and then the two moving rods 6 drive multiple clamping blocks 10 to contact the screw rod, thereby tightening the screw rod; because the implementation process of the technical solution is: after the screw rod is inserted into the screw rod hole 4, the moving rod 6 is driven to move in the direction of the screw rod under the action of the transmission component, and during the movement of the moving rod 6, the round block 7 will expand and contract the spring 8 to move When the movable rod 6 moves, the strip block 9 will drive the clamping block 10 to move in the direction of the screw rod until the clamping block 10 contacts the screw rod. The multiple clamping blocks 10 on the two support plates 1 will surround the screw rod and apply force to the screw rod. Under the action of the force, the screw rod is tightened. Therefore, the technical problem can be solved inevitably, and the technical effect achieved is: preventing the screw rod from swinging and swaying, ensuring the tightening of the screw rod in complex environments such as pumped storage, and creating favorable conditions for the safe and stable operation of the power station.

[0050] In the present utility model, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0051] In the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connected", "fixed" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustable screw fixing device, comprising two support plates (1), characterized in that: The surfaces of the two support plates (1) are both symmetrically fixedly mounted with connection blocks (2), the surfaces of the plurality of connection blocks (2) are both provided with insertion holes, a connection bolt (3) is provided between each two connection blocks (2), the connection bolt (3) is inserted into the insertion hole, and the surfaces of the two support plates (1) are both provided with arc-shaped screw holes (4); a mounting block (5) is fixedly mounted on the surface of the support plate (1), a moving hole is provided on the surface of the mounting block (5), a moving rod (6) is slidably inserted into the moving hole, a round block (7) is fixedly mounted on one end of the moving rod (6), a telescopic spring (8) is sleeved on the moving rod (6), the two ends of the telescopic spring (8) are respectively fixedly connected to the round block (7) and the mounting block (5), a strip block (9) is fixedly mounted on one end of the moving rod (6), a clamping block (10) is symmetrically slidably mounted on the strip block (9) through a sliding assembly, and a transmission assembly for driving the moving rod (6) to move toward the screw hole (4) is provided on the support plate (1).

2. An adjustable screw fixing device according to claim 1, characterized in that: The transmission assembly comprises two connecting rods (11), two first spring rods (12), two rectangular rods (13) and a moving component arranged on the connecting block (2) for driving the rectangular rods (13) to move, the two connecting rods (11) being symmetrically fixedly mounted on the moving rod (6), one end of the two first spring rods (12) being respectively fixedly connected to the two connecting rods (11), and the other end being respectively fixedly connected to the two rectangular rods (13), and the elastic coefficient of the first spring rod (12) being greater than the elastic coefficient of the telescopic spring (8).

3. An adjustable screw fixing device according to claim 2, characterized in that: The moving component comprises two slide rails (14), two sliders (15) and a baffle (16); the two slide rails (14) are symmetrically fixedly mounted on the connecting block (2); the two sliders (15) are slidably mounted on the two slide rails (14) respectively; the baffle (16) is fixedly mounted between the two sliders (15); and one end of the rectangular rod (13) is fixedly connected to a side surface of the baffle (16).

4. The adjustable screw fixing device according to claim 1, characterized in that: A moving groove is provided on the surface of the strip block (9), and the sliding assembly comprises two moving blocks (17). The two moving blocks (17) are symmetrically slidably installed in the moving groove, and the two moving blocks (17) are respectively fixedly connected to the two clamping blocks (10). A locking assembly for locking the two moving blocks (17) is provided on the strip block (9).

5. An adjustable screw fixing device according to claim 4, characterized in that: A plurality of limiting holes are formed at the upper end of the bar block (9), and a positioning hole is formed at the upper ends of the two moving blocks (17). The locking assembly comprises two second spring rods (18), two L-shaped rods (19), a cross rod (20) and a plurality of limiting rods (21). The two second spring rods (18) are symmetrically fixedly mounted on the bar block (9), the two L-shaped rods (19) are respectively fixedly connected to one end of the two second spring rods (18), the cross rod (20) is fixedly mounted between the two L-shaped rods (19), and the plurality of limiting rods (21) are fixedly mounted on the lower surface of the cross rod (20). The plurality of limiting rods (21) are respectively inserted into the plurality of limiting holes, wherein one end of two limiting rods (21) are respectively inserted into the two positioning holes.

6. An adjustable screw fixing device according to claim 5, characterized in that: A pull block (22) is fixedly mounted on the surface of the cross bar (20).

7. An adjustable screw fixing device according to claim 6, characterized in that: The pull block (22) has anti-slip grooves on its surface.

8. The adjustable screw fixing device according to claim 1, characterized in that: One end of each of the plurality of clamping blocks (10) is an arc-shaped end.

9. An adjustable screw fixing device according to claim 8, characterized in that: A protective pad is fixedly mounted on the arc-shaped end surface of the clamping block (10).

10. The adjustable screw fixing device according to claim 1, characterized in that: Anti-skid pads are fixedly mounted on the lower surfaces of the two support plates (1), and the anti-skid pads are made of rubber.

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