Steel structure bolt fastening force adjusting device

Abstract

The utility model discloses a steel structure bolt fastening force adjusting device, which belongs to the field of fastening force adjusting equipment, and structurally comprises two polygonal inserting cylinders, the two polygonal inserting cylinders are respectively sleeved at two ends of a bolt, the bolt can slide in the polygonal inserting cylinders along the axis direction of the bolt, the end parts of the two polygonal inserting cylinders are respectively connected with a cross arm, and the cross arm is connected with a connecting rod. The other ends of the two cross arms are connected with a limiting part, the limiting part is in lap joint with the side edge of the steel structure to limit rotation of the cross arms, and the cross arm on one side is fixedly connected with the corresponding polygonal insertion barrel; the cross arm on the other side is rotationally connected with the corresponding polygonal insertion cylinder, and a torsion motor for driving the polygonal insertion cylinder to rotate is mounted on the cross arm; according to the device, fasteners at all positions of a steel structure can be screwed at the same time, and potential safety hazards at the connecting position of the steel structure are reduced.

Description

Technical Field

[0001] The utility model relates to the field of fastening force adjusting devices, and particularly to a steel structure bolt fastening force adjusting device. Background Art

[0002] The load of a steel structure is transmitted through the pre-tightening force of bolts to ensure the overall stability of the structure; proper adjustment of the fastening force can ensure that the connection will not loosen due to the action of the load;

[0003] In the prior art, a wrench or an electric wrench is usually used to twist the bolts on the steel structure one by one to achieve the loosening and tightening of the bolts; when initially installing the bolts on the steel structure, the two parts of the steel structure may not fit completely, and affected by the scattered positions of the bolts on the steel structure, it is easy to cause some bolts to not be tightened sufficiently. As the bolts between the two parts of the steel structure are installed and tightened one by one, the two parts of the steel structure gradually fit. The bolts that were not tightened sufficiently at the beginning are scattered at various positions of the steel structure and are easily left behind, resulting in the bolts at that place being in a loose state, increasing the safety hazards at the connection of the steel structure. Therefore, this application provides a steel structure bolt fastening force adjusting device. Summary of the Utility Model

[0004] In order to solve the above deficiencies in the prior art, the purpose of the utility model is to provide a steel structure bolt fastening force adjusting device, which can simultaneously tighten the fasteners at various positions of the steel structure and reduce the safety hazards at the connection of the steel structure.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] A steel structure bolt fastening force adjusting device is provided, which includes two polygonal insertion cylinders. The two polygonal insertion cylinders are respectively sleeved at both ends of the bolt, and the bolt can slide along its own axis direction within the polygonal insertion cylinder. The ends of the two polygonal insertion cylinders are respectively connected with cross arms, and the other ends of the two cross arms are connected with a limiting component. The limiting component overlaps with the side edge of the steel structure to restrict the rotation of the cross arms.

[0007] Further, one side of the cross arm is fixedly connected to the corresponding polygonal insertion cylinder; the cross arm on the other side is rotatably connected to the corresponding polygonal insertion cylinder, and a torque motor for driving the polygonal insertion cylinder to rotate is installed on this cross arm.

[0008] For the limiting component used in this application, an optional technical solution is: the limiting component includes a fixed docking plate, the fixed docking plate is inserted and connected with the two cross arms, and the outer side surface of the fixed docking plate overlaps with the side edge of the steel structure.

[0009] Another optional technical solution for the limiting component used in the present application is: the limiting component includes two movable docking plates and two obstacle crossing arms, the two movable docking plates are detachably fixedly connected to each other, the obstacle crossing arm is rotatably connected to the movable docking plates, and the other end of the obstacle crossing arm is rotatably connected to the cross arm.

[0010] Furthermore, a magnetic sheet capable of being connected to the bolt through magnetic adsorption coupling is provided on the inner side of the polygonal insert.

[0011] Furthermore, a curved guide edge is provided on the inner side of the end of the polygonal insert close to the bolt.

[0012] Furthermore, a magnetic ring is fixedly mounted on the outer side of the end of the polygonal insert close to the bolt.

[0013] Furthermore, the output shaft of the torque motor is connected to an extension tube via a flange structure, and the end of the extension tube is detachably fixedly connected to the polygonal insert tube.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The steel structure bolt tightening force adjustment device of the utility model example prepares multiple steel structure bolt tightening force adjustment devices according to the number of fastening bolts used between two parts of the steel structure; when using a single steel structure bolt tightening force adjustment device, two polygonal inserts are respectively sleeved on both ends of the bolt, and then the torque motor is started to make the polygonal inserts on both sides rotate relative to each other to achieve the tightening operation of the bolt; when using multiple steel structure bolt tightening force adjustment devices at the same time, the fasteners at various positions of the steel structure are tightened at the same time to avoid the loss of some bolts that are not fully tightened due to the incomplete fit of the two parts of the steel structure; it is ensured that multiple bolts scattered at various positions of the steel structure can remain in a tightened state, reducing the safety hazards at the connection of the steel structure.

[0016] 2. The steel structure bolt tightening force adjustment device of the utility model example, the limiting component includes a fixed docking plate, the fixed docking plate is plug-connected with the two cross arms, the outer side surface of the fixed docking plate overlaps the side edge of the steel structure; the fixed docking plate is used to lock the position of the two cross arms to limit the relative rotation of the two cross arms.

[0017] 3. The steel structure bolt tightening force adjustment device of the utility model example, the limiting component includes two movable docking plates and two obstacle crossing arms, the two movable docking plates are detachably fixed to each other, the obstacle crossing arm is rotatably connected to the movable docking plate, and the other end of the obstacle crossing arm is rotatably connected to the cross arm; the obstacle crossing arm is used to connect the end of the cross arm and the movable docking plate. Since the obstacle crossing arm is tilted relative to the cross arm, it can avoid the edge of the steel structure to cope with steel structures of different specifications and shapes, and has good applicability. Description of the Drawings

[0018] Other features, objects, and advantages of the present application will become more apparent by reading the following detailed description of non - limiting embodiments with reference to the accompanying drawings:

[0019] Figure 1 Structural schematic of the overall steel - structure bolt tightening - force adjusting device provided by the embodiment of the present utility model Figure 1 ;

[0020] Figure 2 Cross - sectional profile of the polygonal insertion cylinder and the cross - arm provided by the embodiment of the present utility model;

[0021] Figure 3 For the present utility model Figure 2 Enlarged view of part A;

[0022] Figure 4 Exploded view of the bolt and two polygonal insertion cylinders provided by the embodiment of the present utility model;

[0023] Figure 5 Structural schematic of the overall steel - structure bolt tightening - force adjusting device provided by the embodiment of the present utility model Figure 2 .

[0024] In the figure: 1 steel structure, 11 polygonal insertion cylinder, 111 arc - surface guiding edge, 112 magnetic sheet, 12 cross - arm, 13 magnetic ring, 2 bolt, 21 extension cylinder, 22 torque motor, 31 fixed docking plate, 32 movable docking plate, 33 obstacle - crossing arm. Detailed Description of the Preferred Embodiments

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model.

[0026] Components of the embodiments of the present utility model usually described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model.

[0027] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] It should be noted that, without conflict, the embodiments and the features in the embodiments in the present application can be combined with each other. Additionally, it should be noted that for the convenience of description, only the parts related to the utility model are shown in the drawings.

[0031] Embodiment 1:

[0032] As Figure 2 shown, this embodiment provides a steel structure bolt fastening force adjusting device, which includes two polygonal insertion cylinders 11. The two polygonal insertion cylinders 11 are respectively sleeved at both ends of the bolt 2. The bolt 2 can slide along its own axis direction within the polygonal insertion cylinder 11, so that the end of the polygonal insertion cylinder 11 can be in contact with the surface of the steel structure 1; cross arms 12 are respectively connected to the ends of the two polygonal insertion cylinders 11, and the other ends of the two cross arms 12 are connected to a limiting component, and the limiting component is lapped with the side edge of the steel structure 1 to limit the rotation of the cross arm 12.

[0033] As Figure 2 and Figure 4 shown, the cross arm 12 on one side is fixedly connected to the corresponding polygonal insertion cylinder 11; the cross arm 12 on the other side is rotationally connected to the corresponding polygonal insertion cylinder 11 in an embedded manner, and a torque motor 22 for driving the polygonal insertion cylinder 11 to rotate is installed on this cross arm 12.

[0034] Among them, an open mouth for the stud to pass through is provided at the end of the polygonal insertion cylinder 11 not connected to the torque motor 22 and away from the bolt 2, so as to prevent the protruding length of the stud on the other side of the nut from being too long and causing the equipment to be unable to be normally installed and used.

[0035] When using the steel structure bolt tightening force adjustment device of the present application;

[0036] First, according to the number of fastening bolts used between the two parts of the steel structure 1, multiple steel structure bolt fastening force adjustment devices are prepared; when a single steel structure bolt fastening force adjustment device is used, the bolt is installed between the two parts of the steel structure 1, at this time, the nut is not completely tightened with the stud, and then two polygonal inserts 11 are respectively sleeved on both ends of the bolt 2;

[0037] Afterwards, the torque motor 22 is started to control the polygonal insert 11 on one side to rotate on the corresponding cross arm 12. Since the polygonal insert 11 on the other side is fixedly connected to the corresponding cross arm 12 and does not rotate, the polygonal inserts 11 on both sides rotate relative to each other in an offset manner, thereby realizing the tightening operation of the bolts. The parameters of the torque motor 22 are adjusted to control the tightening force of the bolts.

[0038] When multiple steel structure bolt tightening force adjustment devices are used at the same time, fasteners at various locations of the steel structure are tightened simultaneously to avoid some bolts that are not fully tightened from being left behind due to incomplete fit between the two parts of the steel structure 1; it ensures that multiple bolts scattered throughout the steel structure 1 can remain in a tightened state, reducing safety hazards at the steel structure connections.

[0039] In order to increase the convenience of installing the polygonal insert 11 at the end of the bolt 2, as shown in FIG. Figure 3 and Figure 4 As shown, an arc guide edge 111 is provided on the inner side of the end of the polygonal insert 11 close to the bolt 2 , and the arc guide edge 111 plays a guiding role so that the polygonal insert 11 can be quickly sleeved on the end of the bolt 2 .

[0040] In order to increase the installation stability of the polygonal insert 11 at the end of the bolt 2, as shown in FIG. Figure 2 , Figure 3 and Figure 4 As shown, a magnetic sheet 112 that can be coupled with the bolt 2 through magnetic adsorption is provided on the inner side of the polygonal insert 11, and a magnetic ring 13 is fixedly installed on the outer side of the end of the polygonal insert 11 close to the bolt 2. The magnetic sheet 112 is coupled with the bolt 2 through magnetic adsorption, and the magnetic ring 13 is coupled with the steel structure 1 through magnetic adsorption, thereby increasing the installation stability of the polygonal insert 11 at the end of the bolt 2.

[0041] In this embodiment, Figure 1 As shown, the limiting component includes a fixed docking plate 31, which is plug-connected to the two cross arms 12, and the outer side surface of the fixed docking plate 31 overlaps the side edge of the steel structure 1; the fixed docking plate 31 is used to lock the position of the two cross arms 12 to limit the relative rotation of the two cross arms 12.

[0042] Embodiment 2:

[0043] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 5 As shown, in this embodiment, the limiting component includes two movable docking plates 32 and two obstacle crossing arms 33. The two movable docking plates 32 are detachably fixedly connected to each other, the obstacle crossing arm 33 is rotatably connected to the movable docking plates 32, and the other end of the obstacle crossing arm 33 is rotatably connected to the cross arm 12.

[0044] The obstacle crossing arm 33 is used to connect the end of the cross arm 12 and the movable docking plate 32. Since the obstacle crossing arm 33 is tilted relative to the cross arm 12, it can avoid the edge of the steel structure 1 to cope with steel structures of different specifications and shapes.

[0045] Embodiment three:

[0046] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 1 , Figure 3 and Figure 5 As shown, in this embodiment, the ends of the two polygonal inserts 11 away from the bolt 2 are both provided with an opening, the output shaft of the torque motor 22 is connected to the extension tube 21 through a flange structure, and the end of the extension tube 21 is detachably fixedly connected to the polygonal insert 11;

[0047] By utilizing the above solution, the end of the stud can pass through the opening of the polygonal insert 11 and then extend into the extension tube 21, thereby preventing the protruding length of the stud on the other side of the nut from being too long, which may cause the equipment to be unable to be installed and used normally. Compared with the technical solution in Example 1, in this embodiment, both polygonal inserts 11 are provided with openings, which can flexibly cope with the use of the stud being installed upward or downward.

[0048] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

[0049] Except for the technical features described in the specification, the other technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present utility model, the other technical features will not be described in detail here.

Claims

1. A steel structure bolt fastening force adjusting device, characterized in that It includes two polygonal sockets (11) that can be respectively sleeved on both ends of the bolt (2). Cross arms (12) are respectively connected to the end parts of the two polygonal sockets (11). The other ends of the two cross arms (12) are connected to the limiting component, and the limiting component overlaps with the side edge of the steel structure (1). The cross arm (12) on one side is fixedly connected to the corresponding polygonal socket (11); the cross arm (12) on the other side is rotatably connected to the corresponding polygonal socket (11), and a torsion motor (22) for driving the rotation of the polygonal socket (11) is installed on this cross arm (12).

2. The steel structure bolt fastening force adjusting device according to claim 1, characterized in that The limiting component includes a fixed docking plate (31). The fixed docking plate (31) is inserted and connected to the two cross arms (12), and the outer side surface of the fixed docking plate (31) overlaps with the side edge of the steel structure (1).

3. The steel structure bolt fastening force adjusting device according to claim 1, characterized in that, The limiting component includes two movable docking plates (32) and two obstacle-crossing arms (33). The two movable docking plates (32) are detachably and fixedly connected to each other. The obstacle-crossing arms (33) are rotatably connected to the movable docking plates (32), and the other ends of the obstacle-crossing arms (33) are rotatably connected to the cross arms (12).

4. The steel structure bolt fastening force adjusting device according to claim 1, characterized in that, An open end is provided at the end of the polygonal socket (11) that is not connected to the torsion motor (22) and is far from the bolt (2).

5. The steel structure bolt fastening force adjusting device according to claim 1, characterized in that, Open ends are provided at the ends of the two polygonal sockets (11) that are far from the bolt (2). The output shaft of the torsion motor (22) is connected with an extension cylinder (21) through a flange structure, and the end of the extension cylinder (21) is detachably and fixedly connected to the polygonal socket (11).

6. The steel structure bolt fastening force adjusting device according to claim 3 or 2, characterized in that A magnetic sheet (112) that can be coupled to the bolt (2) through magnetic adsorption is provided inside the polygonal socket (11).

7. The steel structure bolt fastening force adjusting device according to claim 3 or 2, characterized in that, An arc-shaped guiding edge (111) is provided inside the end of the polygonal socket (11) close to the bolt (2).

8. The steel structure bolt fastening force adjusting device according to claim 3 or 2, characterized in that A magnetic ring (13) is fixedly installed on the outer side of the end of the polygonal socket (11) close to the bolt (2).

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