Steel structure anti-sliding detection device

Abstract

The utility model relates to the technical field of steel structure anti-slip detection, and discloses a steel structure anti-slip detection device, which comprises a mounting plate and an anti-slip test piece, and two groups of clamping pieces are arranged on the top surface of the mounting plate; the clamping piece comprises a bottom plate, a sliding plate is arranged on the upper side of the bottom plate, a through groove is formed in the outer surface of the sliding plate, a gear is arranged in the through groove, a first rack is fixedly connected to the inner wall of the through groove, and two sets of clamping plates are further arranged on the upper side of the bottom plate. According to the utility model, through the arrangement of the clamping pieces, when anti-slip detection is carried out, after the mounting plate is fixed on the tool table, the anti-slip test piece is placed on the sliding plate, and then the anti-slip test piece is pressed downwards to drive the two clamping plates to move, so that the anti-slip test piece can be fixed, and the anti-slip test piece can also be fixed; and therefore, a torque wrench can be conveniently used for tightening the large hexagonal head high-strength bolt, so as to achieve more accurate fastening axial force.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure anti-slip detection, in particular to a steel structure anti-slip detection device. Background Art

[0002] Due to the rise and development of steel structure buildings, steel structure buildings have become a more common form. As the key connector in steel structures, high-strength bolts, their construction and installation technology occupies an important position. High-strength bolts have many advantages: reduced labor intensity, most of the work can be completed in the factory, avoiding large-scale welding operations to harm the welder's body, etc., so they are increasingly used in steel structure projects. Therefore, the importance of on-site inspection of the tightening torque of high-strength bolts is self-evident;

[0003] The anti-slip coefficient is also called the friction coefficient. The anti-slip coefficient refers to the ratio of the external force that causes the friction surface of the connection to slide in the high-strength bolt connection to the sum of the high-strength bolt pre-tension perpendicular to the friction surface. The principle is to clamp the steel plate with the clamping force generated by the high-strength bolt tightening, thereby generating friction between the contact surfaces of the steel plates, and then transmitting to the stress perpendicular to the screw axis direction;

[0004] However, the current problem with the anti-slip coefficient test is that in the anti-slip coefficient test, the large hexagonal high-strength bolts need to be initially tightened with a tightening axial force of about 50%, and then finally tightened. The tightening axial force after the final tightening is between 0.95P and 1.05P. Since the anti-slip coefficient test has relatively high requirements on the tightening axial force accuracy of the bolts, the torque wrench used is not easy to control, and the conventional rack for fixing the test piece is not convenient to operate, resulting in low inspection efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a steel structure anti-slip detection device to solve the problem in the above background that the anti-slip coefficient test has relatively high requirements on the tightening axial force accuracy of the bolts, the torque wrench used is not easy to control, and the conventional rack for fixing the test piece is not convenient to operate, resulting in low inspection efficiency.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A steel structure anti-slip detection device comprises a mounting plate and an anti-slip test piece, wherein the top surface of the mounting plate is provided with two groups of clamping members; wherein the clamping members comprise a base plate, a sliding plate is provided on the upper side of the base plate, a through groove is provided on the outer surface of the sliding plate, a gear is provided inside the through groove, a first rack is fixedly connected to the inner wall of the through groove, two groups of clamping plates are further provided on the upper side of the base plate, the opposite surfaces of the clamping plates are fixedly connected to a connecting frame, and the inner wall of the connecting frame is fixedly connected to a second rack; two groups of fixing members are provided inside the sliding plate, and the fixing members are adapted to the slots provided on the outer surface of the base plate.

[0008] As a further solution of the utility model: the sliding plate is L-shaped, and a plurality of guide grooves are provided on the outer surface of the sliding plate, and the inner walls of two groups of the guide grooves are provided with first elastic members.

[0009] As a further solution of the utility model: a guide rod is fixedly connected to the outer surface of the bottom plate, and the outer surface of the guide rod is slidably matched with the inner wall of one group of guide grooves.

[0010] As a further solution of the utility model: two groups of connecting plates are fixedly connected to the outer surface of the base plate, the outer surfaces of the connecting plates are slidably matched with the inner walls of the other two groups of guide grooves, the top surface of the connecting plates is fixedly connected to the bottom end of the first elastic member, and the top end of the first elastic member is fixedly connected to the inner wall of the guide groove.

[0011] As a further solution of the utility model: the gear is rotationally matched with the outer surface of the base plate, the outer surface of the gear is meshingly matched with the outer surface of the first rack, the outer surface of the gear is meshingly matched with the outer surfaces of the two groups of second racks, and the two groups of second racks are arranged in a centrally symmetrical manner.

[0012] As a further solution of the utility model: the fixing part includes two groups of clamping columns, and one side surface of the two groups of clamping columns is fixedly connected to a second elastic part, the second elastic part is fixedly installed inside a groove opened on the outer surface of the sliding plate, and the outer surface of the clamping column is slidably matched with the inner wall of the groove, and the outer surface of the base plate is provided with a clamping groove adapted to the clamping column.

[0013] As a further solution of the utility model: one group of the clamping members is slidably matched with the top surface of the bottom mounting plate, and another group of the clamping members is fixedly connected to the top surface of the mounting plate.

[0014] As a further solution of the utility model: a group of base plates slidingly matched with the mounting plate are fixedly connected to the output end of the cylinder, and the cylinder is fixedly mounted on the top surface of the mounting plate.

[0015] As a further solution of the utility model: a plurality of groups of mounting ears are fixedly connected to the outer surface of the mounting plate.

[0016] Beneficial effects of the utility model:

[0017] (1) The utility model provides a clamping piece, so that when performing anti-slip testing, after the mounting plate is fixed on the workbench, the anti-slip test piece is placed on the sliding plate, and then the anti-slip test piece is pressed downward to drive the two clamping plates to move, so that the anti-slip test piece can be fixed, and then the large hexagonal high-strength bolts therein can be tightened conveniently using a torque wrench to achieve a more accurate tightening axial force;

[0018] (2) The utility model provides a cylinder to drive one of the clamping members to slide on the mounting plate, thereby adjusting the distance between the two clamping members, and can be adapted to anti-slip test pieces of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the clamping member in the utility model;

[0022] Figure 3 It is a schematic diagram of the structure decomposition of the clamping member in the utility model;

[0023] Figure 4 It is a plan view of the clamping member in the utility model;

[0024] Figure 5 It is a schematic diagram of the structural decomposition of the bottom plate and the sliding plate of the utility model;

[0025] Figure 6 It is a schematic diagram of the clamping process in the utility model.

[0026] In the figure: 1. mounting plate; 2. clamping member; 21. bottom plate; 211. guide rod; 212. connecting plate; 213. slot; 214. push rod; 22. sliding plate; 221. through slot; 222. first rack; 223. guide slot; 224. first elastic member; 225. second elastic member; 226. clamping column; 23. gear; 24. clamping plate; 241. connecting frame; 242. second rack; 3. cylinder; 4. mounting ear; 5. anti-slip test piece. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-Figure 6 As shown, the utility model is a steel structure anti-slip detection device, comprising a mounting plate 1 and an anti-slip test piece 5;

[0029] The anti-slip test piece 5 includes a core plate and a side plate, and the two side plates are located on both sides of the core plate. The sensor sleeve is set on the outside of the bolt, and then passes through the mounting holes on the core plate and the side plate, and then the gasket and nut are installed on the outside of the bolt and tightened. During the experiment, the two ends of the core plate are clamped and fixed, that is, the entire anti-slip test piece 5 can be fixed;

[0030] Two groups of clamping members 2 are arranged on the top surface of the mounting plate 1, one group of the clamping members 2 is slidably matched with the top surface of the mounting plate 1, and the other group of the clamping members 2 is fixedly connected with the top surface of the mounting plate 1;

[0031] A group of bottom plates 21 that are slidably matched with the mounting plate 1 are fixedly connected to the output end of the cylinder 3, and the cylinder 3 is fixedly mounted on the top surface of the mounting plate 1. The bottom plates 21 can be driven to move by the provided cylinder 3, and the distance between the two bottom plates 21 can be adjusted, so that core plates of different lengths can be clamped and fixed;

[0032] The clamping member 2 includes a bottom plate 21, which is configured in an L-shape, similar to the shape of the sliding plate 22;

[0033] A sliding plate 22 is disposed on the upper side of the bottom plate 21, a through groove 221 is formed on the outer surface of the sliding plate 22, a gear 23 is disposed inside the through groove 221, a first rack 222 is fixedly connected to the inner wall of the through groove 221, the gear 23 is rotatably matched with the outer surface of the bottom plate 21, and the outer surface of the gear 23 is meshed with the outer surface of the first rack 222;

[0034] By cooperating with the gear 23, the first rack 222 is provided, so that when the anti-slip test piece 5 is pressed downward, the sliding plate 22 is forced to move downward, and the first rack 222 moves downward, driving the gear 23 to rotate;

[0035] Two groups of clamping plates 24 are also provided on the upper side of the bottom plate 21. The opposite surfaces of the clamping plates 24 are fixedly connected with connection frames 241. The inner walls of the connection frames 241 are fixedly connected with second racks 242. The outer surface of the gear 23 is meshed with the outer surfaces of the two groups of second racks 242. The two groups of second racks 242 are centrally symmetrically arranged, so that when the gear 23 rotates, the two second racks 242 move in opposite directions.

[0036] The sliding plate 22 is L-shaped, and a plurality of guide grooves 223 are provided on the outer surface of the sliding plate 22. The inner walls of the two guide grooves 223 are provided with first elastic members 224. The first elastic members 224 are configured as springs, which can apply force to the sliding plate 22, so that the sliding plate 22 is in a state where ... Figure 4 The position shown in the figure;

[0037] Two groups of connecting plates 212 are fixedly connected to the outer surface of the bottom plate 21. The outer surfaces of the connecting plates 212 are slidably matched with the inner walls of the other two groups of guide grooves 223. The top surface of the connecting plate 212 is fixedly connected to the bottom end of the first elastic member 224, and the top end of the first elastic member 224 is fixedly connected to the inner wall of the guide groove 223.

[0038] The outer surface of the bottom plate 21 is fixedly connected with a guide rod 211, and the outer surface of the guide rod 211 is slidably matched with the inner wall of one set of guide grooves 223, so that the sliding plate 22 can be limited to slide in the vertical direction;

[0039] Two sets of fixing members are arranged inside the sliding plate 22, and the fixing members are adapted to the slots 213 provided on the outer surface of the bottom plate 21. The setting of the fixing members can keep the sliding plate 22 and the clamping plate 24 in a fixed state during the clamping process;

[0040] The fixing member includes two groups of posts 226, the ends of which are provided with rounded corners, so that the movement is relatively smooth. The second elastic member 225 is fixedly connected to one side of the two groups of posts 226, and the second elastic member 225 is provided as a spring, which exerts a force on the posts 226 so that the posts 226 can be fixed inside the slot 213. The second elastic member 225 is fixedly installed inside the groove formed on the outer surface of the sliding plate 22, and the outer surface of the posts 226 is slidably matched with the inner wall of the groove. The outer surface of the bottom plate 21 is provided with a slot 213 adapted for the posts 226.

[0041] It should be noted that an external accessory push rod 214 is provided, such as Figure 5 As shown, the push rod 214 can push the card post 226 out of the interior of the card slot 213;

[0042] The outer surface of the mounting plate 1 is fixedly connected with a plurality of mounting ears 4, and four mounting ears 4 are provided and located at the four corners of the mounting plate 1, so as to facilitate fixing the mounting plate 1 on the workbench, so that the clamping member 2 on the upper side of the mounting plate 1 is fixed;

[0043] The working principle of this utility model:

[0044] During the inspection, the anti-slip test piece 5 is first installed, and then the bottom plate 21 is driven to move by controlling the cylinder 3 so that the distance between the two bottom plates 21 matches the length of the anti-slip test piece 5 to be inspected, and then the anti-slip test piece 5 is placed on the top surface of the sliding plate 22, and then the anti-slip test piece 5 is pressed downward. At this time, the sliding plate 22 moves downward, the first rack 222 is transmitted with the gear 23, and the gear 23 rotates, thereby driving the two second racks 242 to move, so that the two clamping plates 24 move synchronously toward the anti-slip test piece 5 to clamp and fix it. In the process of the sliding plate 22 being forced to move downward, the clamping column 226 will enter the corresponding clamping groove 213, and be fixed in the clamping groove 213 under the action of the second elastic member 225, so that the sliding plate 22 and the two clamping plates 24 are in a clamped and fixed state against the anti-slip test piece 5;

[0045] Therefore, the anti-slip test piece 5 can be effectively fixed, and the large hexagonal high-strength bolts therein can be tightened conveniently using a torque wrench to achieve a more accurate tightening axial force;

[0046] When the anti-slip test piece 5 needs to be removed, the two clamping columns 226 are pushed out from the inside of the clamping groove 213 by using the push rod 214, and then the sliding plate 22 and the clamping plate 24 return to their original positions under the action of the first elastic member 224, and the anti-slip test piece 5 can be removed.

[0047] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A steel structure anti-slip detection device, comprising a mounting plate (1) and an anti-slip test piece (5), characterized in that: The top surface of the mounting plate (1) is provided with two groups of clamping members (2); The clamping member (2) comprises a bottom plate (21), a sliding plate (22) is arranged on the upper side of the bottom plate (21), a through groove (221) is provided on the outer surface of the sliding plate (22), a gear (23) is arranged inside the through groove (221), a first rack (222) is fixedly connected to the inner wall of the through groove (221), two groups of clamping plates (24) are also arranged on the upper side of the bottom plate (21), the opposite surfaces of the clamping plates (24) are fixedly connected to the connecting frames (241), and the inner walls of the connecting frames (241) are fixedly connected to the second racks (242); Two groups of fixing members are arranged inside the sliding plate (22), and the fixing members are adapted to the clamping grooves (213) provided on the outer surface of the bottom plate (21).

2. A steel structure anti-slip detection device according to claim 1, characterized in that: The sliding plate (22) is L-shaped, and a plurality of guide grooves (223) are provided on the outer surface of the sliding plate (22), and first elastic members (224) are provided on the inner walls of two groups of the guide grooves (223).

3. A steel structure anti-slip detection device according to claim 2, characterized in that: The outer surface of the bottom plate (21) is fixedly connected with a guide rod (211), and the outer surface of the guide rod (211) is slidably matched with the inner wall of one group of guide grooves (223).

4. The anti-slip detection device for steel structure according to claim 2, characterized in that: Two groups of connecting plates (212) are fixedly connected to the outer surface of the bottom plate (21), and the outer surfaces of the connecting plates (212) are slidably matched with the inner walls of the other two groups of guide grooves (223). The top surface of the connecting plate (212) is fixedly connected to the bottom end of the first elastic member (224), and the top end of the first elastic member (224) is fixedly connected to the inner wall of the guide groove (223).

5. The anti-slip detection device for steel structure according to claim 1, characterized in that: The gear (23) is rotationally matched with the outer surface of the bottom plate (21), the outer surface of the gear (23) is meshed with the outer surface of the first rack (222), the outer surface of the gear (23) is meshed with the outer surfaces of the two sets of second racks (242), and the two sets of second racks (242) are arranged in a centrally symmetrical manner.

6. The anti-slip detection device for steel structure according to claim 1, characterized in that: The fixing member comprises two groups of clamping columns (226), one side of each of the two groups of clamping columns (226) is fixedly connected to a second elastic member (225), the second elastic member (225) is fixedly installed inside a groove formed on the outer surface of the sliding plate (22), and the outer surface of the clamping column (226) is slidably matched with the inner wall of the groove, and the outer surface of the bottom plate (21) is provided with a clamping groove (213) adapted to the clamping column (226).

7. The anti-slip detection device for steel structure according to claim 1, characterized in that: One group of the clamping members (2) is slidably matched with the top surface of the bottom mounting plate (1), and the other group of the clamping members (2) is fixedly connected to the top surface of the mounting plate (1).

8. The anti-slip detection device for steel structure according to claim 7, characterized in that: A group of bottom plates (21) that are slidably matched with the mounting plate (1) are fixedly connected to the output end of the cylinder (3), and the cylinder (3) is fixedly mounted on the top surface of the mounting plate (1).

9. The anti-slip detection device for steel structure according to claim 1, characterized in that: The outer surface of the mounting plate (1) is fixedly connected with a plurality of groups of mounting ears (4).

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