Connecting piece for installation in narrow space

Abstract

The utility model provides a connecting piece for installation in a narrow space, and belongs to connecting pieces for construction. According to the technical scheme, the connecting piece for installation in the narrow and small space is characterized by comprising a stud, a U-shaped groove is formed in one end of the stud, a fixing shaft is fixedly arranged on the side wall of the U-shaped groove, a limiting plate is rotationally arranged on the fixing shaft, the length of the limiting plate is larger than the outer diameter of the stud, and the width of the limiting plate is smaller than the outer diameter of the stud; when the limiting plate is not subjected to external force and the stud is horizontally placed, the limiting plate is in an inclined state under the action of gravity, and the two ends of the limiting plate extend out of the stud; a nut is arranged on the stud in a threaded connection mode. The connecting piece has the advantages that the connecting piece can be installed in a narrow space, the structure is simple, use is convenient, and the welding condition is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a connecting piece for construction, especially a connecting piece for installation in a narrow space. BACKGROUND

[0002] In the process of foundation engineering construction, main body structure construction, roofing engineering construction and decoration engineering construction, sometimes due to work failure (construction failure and design drawing failure), connecting pieces need to be installed on the already installed framework or board in order to be used later, or need to be installed on angle steels, U-shaped steels or square steels for installing a construction platform temporarily at a construction site. When the above-mentioned situations occur, the connecting pieces are usually welded at specified positions, and the connecting pieces are usually studs. Since a welding machine needs to be used for welding, it is very inconvenient. Sometimes, the studs are passed through after being punched, but since the space is narrow, it is difficult to tighten the nuts with hands, which is time-consuming and laborious. SUMMARY

[0003] The utility model aims at providing a connecting piece for installation in a narrow space.

[0004] The utility model is realized through the following measures: a connecting piece for installation in a narrow space, characterized by comprising a stud, one end of the stud is provided with a U-shaped groove, a fixed shaft is fixedly arranged on the side wall of the U-shaped groove, a limiting plate is rotatably arranged on the fixed shaft, the length of the limiting plate is greater than the outer diameter of the stud, and the width of the limiting plate is less than the outer diameter of the stud.

[0005] When the stud is placed horizontally, the limiting plate is in an inclined state under the action of gravity and both ends of the limiting plate extend out of the stud when the limiting plate is not subjected to external force.

[0006] A nut is arranged on the stud through thread connection.

[0007] Further, a threaded hole is concentrically arranged on the stud, a screw rod is arranged in the threaded hole through thread connection, and a blind hole matched with the screw rod is arranged on the limiting plate.

[0008] The limiting plate is in a horizontal state, and the screw rod can extend into the blind hole. Through cooperation of the screw rod and the blind hole, the limiting plate is prevented from being extended into the installation hole by mistake and is difficult to disassemble. When the screw rod extends into the blind hole, the limiting plate is also in a horizontal position and cannot be deviated under the action of gravity.

[0009] The limiting plate is eccentrically arranged on the fixed shaft, that is, when the limiting plate takes the axis of the fixed shaft as a center line, the weights of both ends of the limiting plate are different.

[0010] The center position of the limiting plate is rotatably mounted on the fixed shaft, and a counterweight is provided at any end of the limiting plate. When the limiting plate tilts under gravity, the counterweight moves away from the nut.

[0011] The stud is marked with a corresponding mark to the counterweight, which makes it easy to determine the position of the counterweight during installation and ensures that the counterweight is at the bottom during installation.

[0012] The screw is provided with concentric multi-faceted blind holes.

[0013] The limiting plate is generally rectangular.

[0014] Usage: Place the limiting plate in a horizontal position and insert the screw into the blind hole. Insert the limiting plate and screw into the mounting hole. Unscrew the screw out of the blind hole. The limiting plate will tilt under the action of gravity. Slightly pull the stud so that the limiting plate presses against the inner wall of the mounting plate. Finally, tighten the nut to fix it.

[0015] The advantages of this utility model are: the connector can be installed in a small space, the structure is simple, the use is convenient, and welding is avoided. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model (the limiting plate and the stud are parallel).

[0017] Figure 2 This is a schematic diagram of the structure in the first embodiment where the limiting plate is perpendicular to the stud.

[0018] Figure 3 This is a schematic diagram of the structure after the stud has been cut open;

[0019] Figure 4 This is a schematic diagram of the limiting plate in Example 1;

[0020] Figure 5 This is a schematic diagram of the overall structure of Example 2;

[0021] Figure 6 This is a schematic diagram of the limiting plate in Example 2;

[0022] Figure 7 This is a schematic diagram of the stud structure;

[0023] Figure 8 This is a reference diagram showing the usage status;

[0024] Figure 9 for Figure 8 A magnified view of a portion of point A in the middle.

[0025] The attached diagram is labeled as follows: 1. Stud; 2. U-groove; 3. Limiting plate; 4. Nut; 5. Screw; 6. Wall; 7. Angle steel; 101. Mark; 102. Threaded hole; 201. Fixed shaft; 301. Counterweight; 302. Blind hole; 501. Multi-faceted blind hole. Detailed Implementation

[0026] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0027] Example 1:

[0028] See Figures 1-4 , Figures 7-9 A connector for installation in confined spaces includes a stud 1, one end of which is provided with a U-shaped groove 2, a fixed shaft 201 is fixedly provided on the side wall of the U-shaped groove 2, and a limiting plate 3 is rotatably provided on the fixed shaft 201. The length of the limiting plate 3 is greater than the outer diameter of the stud 1, and the width of the limiting plate 3 is less than the outer diameter of the stud 1.

[0029] When the limiting plate 3 is not subjected to external force, when the stud 1 is placed horizontally, the limiting plate 3 is tilted under the action of gravity and both ends of the limiting plate 3 extend out of the stud 1.

[0030] A nut 4 is provided on the stud 1 via a threaded connection.

[0031] Furthermore, the stud 1 is concentrically provided with a threaded hole 102, and a screw 5 is provided through the threaded hole 102 by a threaded connection. The limiting plate 3 is provided with a blind hole 302 that mates with the screw 5.

[0032] With the limiting plate in a horizontal position, the screw 5 can extend into the blind hole 302. The cooperation between the screw 5 and the blind hole 302 prevents the limiting plate 3 from being mistakenly inserted into the mounting hole, which would make disassembly difficult. With the screw 5 extended into the blind hole 302, the limiting plate 3 remains horizontal and will not shift under gravity.

[0033] The center position of the limiting plate 3 is rotatably set on the fixed shaft 201, and a counterweight 301 is provided at any end of the limiting plate 3. When the limiting plate 3 tilts under gravity, the counterweight 301 moves away from the nut 4.

[0034] The stud 1 is marked with a mark 101 corresponding to the counterweight 301, which makes it easy to determine the position of the counterweight 301 during installation and ensures that the counterweight 301 is at the bottom during installation.

[0035] The screw 5 is concentrically provided with multi-faceted blind holes 501.

[0036] Limiting plate 3 is generally rectangular.

[0037] Usage instructions: (e.g.) Figure 8As shown, the angle steel is set against the obstacle (here, wall 6). If bolts are used, the internal nuts are difficult to install, and welding is generally used to connect the studs. This application can be used to address this situation. Specifically: the limiting plate 3 is placed in a horizontal position and the screw 5 is inserted into the blind hole 302. The limiting plate 3 and the screw 5 are inserted into the mounting hole on the angle steel 7. The screw 5 is unscrewed out of the blind hole 302. The limiting plate 3 tilts under the action of gravity, and the stud 1 is slightly pulled so that the limiting plate 3 presses against the inner wall of the angle steel. Finally, the nut 4 is tightened to achieve fixation.

[0038] Example 2:

[0039] See Figure 3 , Figures 5-7 A connector for installation in confined spaces includes a stud 1, one end of which is provided with a U-shaped groove 2, a fixed shaft 201 is fixedly provided on the side wall of the U-shaped groove 2, and a limiting plate 3 is rotatably provided on the fixed shaft 201. The length of the limiting plate 3 is greater than the outer diameter of the stud 1, and the width of the limiting plate 3 is less than the outer diameter of the stud 1.

[0040] When the limiting plate 3 is not subjected to external force, when the stud 1 is placed horizontally, the limiting plate 3 is tilted under the action of gravity and both ends of the limiting plate 3 extend out of the stud 1.

[0041] A nut 4 is provided on the stud 1 via a threaded connection.

[0042] The limiting plate 3 is eccentrically set on the fixed shaft 201, that is, when the limiting plate 3 is centered on the axis of the fixed shaft 201, the weights at both ends of the limiting plate 3 are different.

[0043] Furthermore, the stud 1 is concentrically provided with a threaded hole 102, and a screw 5 is provided through the threaded hole 102 by a threaded connection. The limiting plate 3 is provided with a blind hole 302 that mates with the screw 5.

[0044] With the limiting plate 3 in a horizontal position, the screw 5 can extend into the blind hole 302. The cooperation between the screw 5 and the blind hole 302 prevents the limiting plate 3 from being mistakenly inserted into the mounting hole, which would make disassembly difficult. With the screw 5 extended into the blind hole 302, the limiting plate 3 remains horizontal and will not shift under gravity.

[0045] The screw 5 is concentrically provided with multi-faceted blind holes 501.

[0046] Limiting plate 3 is generally rectangular.

[0047] The working principle of Embodiment 2 is largely the same as that of Embodiment 1, except that the specific structure of the limiting plate is different.

[0048] The technical features of this utility model not described can be implemented by or by using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this utility model, and this utility model is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model should also be within the protection scope of this utility model.

Claims

1. A connector for installation in confined spaces, characterized in that, The screw post is provided with a U-shaped groove at one end, a fixing shaft is fixedly arranged on the side wall of the U-shaped groove, a limiting plate is rotatably arranged on the fixing shaft, the length of the limiting plate is greater than the outer diameter of the screw post, and the width of the limiting plate is less than the outer diameter of the screw post; When the screw post is horizontally placed, the limiting plate is in an inclined state under the action of gravity and both ends of the limiting plate extend out of the screw post; A nut is threadedly connected on the screw post.

2. The connection for tight-space installation according to claim 1, characterized in that A threaded hole is concentrically arranged on the screw post, a screw rod is threadedly connected and penetrates through the threaded hole, and a blind hole matched with the screw rod is arranged on the limiting plate; The limiting plate is in a horizontal state, and the screw rod can extend into the blind hole.

3. The connection for tight-space installation of claim 1, wherein The limiting plate is eccentrically arranged on the fixing shaft.

4. The connection for tight space installation according to claim 1, characterized in that, The limiting plate is rotatably arranged at the center position of the fixing shaft, and counterweights are arranged at any end of the limiting plate, the counterweights are away from the nut when the limiting plate is inclined under the action of gravity.

5. The connection for tight-space installation according to claim 4, characterized in that A mark corresponding to the counterweight is arranged on the screw post.

6. The connection for tight space installation according to claim 2, wherein A multi-rib blind hole is concentrically arranged on the screw rod.

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