Connecting piece with flat long hole

Abstract

The utility model relates to a connecting piece for a flat long hole. The connecting piece is provided with a lower limiting part (1), a connecting part (2), an upper limiting part (3) and a hand screwing part (4) from bottom to top, the upper surface of the lower limiting part (1) is a plane; the connecting part (2) is of a square structure and is connected between the lower limiting part (1) and the upper limiting part (3), the height of the connecting part is matched with the depth size of the flat long hole, and the two side end faces are flush with the plane where the two side outer walls of the lower limiting part (1) are located; the lower surface of the upper limiting part (3) is a plane, and the maximum size in the direction perpendicular to the length direction of the lower limiting part (1) is larger than the width of the lower limiting part (1). And the hand screwing part (4) stands on the upper limiting part (3). According to the connecting piece, the one-piece structure is adopted, connection work can be completed only through one piece, compared with a traditional bolt and nut combination mode, connection failure caused by accessory loss is avoided, operation is easy, the connecting part is of the square structure and cannot rotate in the flat long hole, and therefore the falling phenomenon is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hole connecting piece, specifically to a connecting piece of flat and long hole. BACKGROUND

[0002] The connecting edge position of the earthwork cell is generally connected together by the ultrasonic welding machine adjacent to the film piece, and the connecting piece is sometimes increased on the connecting edge for further improving the connecting strength. The connecting piece is generally selected as the combination of the bolt and the nut, the hole is punched on the connecting edge, the bolt is inserted, and then the nut is screwed. In order to facilitate the bolt to pass through, the hole on the connecting edge is arranged as the flat and long hole.

[0003] But the bolt and nut connecting mode is easy to lose the accessory and cause the connection failure, or the cylindrical bolt is slightly rotated in the flat and long hole and is loose, and the operation is time-consuming on the other hand. UTILITY MODEL CONTENTS

[0004] In order to solve the technical problems in the above background technology, the utility model provides a connecting piece of flat and long hole, which replaces the bolt and the nut with one piece, is simple to operate, and can prevent the connection failure.

[0005] The utility model technical scheme is as follows:

[0006] A connecting piece of flat and long hole is provided with a lower limiting part, a connecting part, an upper limiting part and a hand screwing part from bottom to top;

[0007] The upper surface of the lower limiting part is a plane;

[0008] The connecting part is a square structure, is connected between the lower limiting part and the upper limiting part, the height is matched with the depth size of the flat and long hole, and the two side end faces are aligned with the faces of the two side outer walls of the lower limiting part;

[0009] The lower surface of the upper limiting part is a plane, and the maximum size in the vertical direction of the lower limiting part is greater than the width of the lower limiting part;

[0010] The hand screwing part is vertically arranged on the upper limiting part.

[0011] As one of the implementation manners, the lower limiting part can be an equal-width strip-shaped structure, and the length size is greater than the length size of the flat and long hole.

[0012] Specifically, the upper length of the lower limiting part is greater than the lower length, and the horizontal section is a rectangle. When used, one end of the lower limiting part is first inclined downward and inserted into the flat and long hole. Since the height of the connecting part is matched with the depth size of the flat and long hole, one end of the upper limiting part will extrude the surrounding area of the flat and long hole, and the greater the inclined insertion angle, the greater the extrusion area. In order to facilitate the insertion, the length of the bottom edge of the lower limiting part is reduced, which can effectively reduce the inclined angle and make the other end of the lower limiting part more easily enter below the flat and long hole.

[0013] As a preferred embodiment, the lower part of the lower limiting part is in an inverted isosceles trapezoidal structure.

[0014] As a further preferred embodiment, the length of the bottom edge of the lower limiting part is slightly greater than the length of the oblong hole, which can effectively prevent the lower limiting part from falling off the oblong hole.

[0015] In addition, the length of the lower limiting part is smoothly transitioned at both ends in the length direction, which can further reduce friction and facilitate installation.

[0016] Regarding the structure of the connecting part, the width of the connecting part is equal to the width of the lower limiting part.

[0017] The connecting part is connected between the center of the lower limiting part and the center of the upper limiting part.

[0018] Regarding the upper limiting part, a disc structure can be used, and the diameter is less than the length of the lower limiting part, so as to increase the contact area with the part to be connected and improve the connection strength.

[0019] The hand screwing part is in a semi-disc structure and is vertically arranged on the upper limiting part, which facilitates manual operation.

[0020] As a preferred embodiment, the hand screwing part passes through the center of the upper limiting part and forms an angle of 45-90 degrees with the length direction of the lower limiting part, which facilitates the transverse force of the hand and enables the connecting piece to be inserted along the length direction of the oblong hole.

[0021] Through the above design, the connecting piece of the oblong hole of the utility model adopts a one-piece structure, and only one piece is needed to complete the connection work. Compared with the combination mode of the traditional bolt and nut, the connection will not be invalid due to the loss of the accessory.

[0022] Moreover, manual operation is simple, and only one insertion and one pulling are needed to complete the operation, without the need to screw the screw.

[0023] Moreover, the connecting part between the lower limiting part and the upper limiting part adopts a square structure, which is different from the cylindrical structure of the bolt and will not rotate in the oblong hole, thereby preventing the falling phenomenon. BRIEF DESCRIPTION OF DRAWINGS

[0024] In the drawings:

[0025] Figure 1 is a perspective view of the connecting piece Figure 1 ;

[0026] Figure 2 is a perspective view of the connecting piece Figure 2 ;

[0027] The components represented by the reference numerals in the drawings are:

[0028] 1. Lower limiting part; 2. Connecting part; 3. Upper limiting part; 4. Hand screwing part. DETAILED DESCRIPTION

[0029] Referring to Figure 1 and Figure 2 The embodiment provides a long and flat hole connecting piece which can be used for connecting long and flat holes on a geotechnical cell or other objects provided with long and flat holes.

[0030] The upper surface of the lower limiting part 1 is a plane to be flush with the bottom surface of the long and flat hole.

[0031] The connecting part 2 is a square structure which is connected between the lower limiting part 1 and the upper limiting part 3, and the height is matched with the depth of the long and flat hole, and the two side end surfaces are aligned with the surfaces of the two side outer walls of the lower limiting part 1 to adapt to the width of the long and flat hole, so that the connecting part 2 is completely immersed in the long and flat hole after connection, and the square structure cannot rotate.

[0032] The lower surface of the upper limiting part 3 is a plane, and the maximum size in the vertical direction of the lower limiting part 1 is greater than the width of the lower limiting part 1 to be flush with the upper surface of the long and flat hole.

[0033] The hand screwing part 4 is erected on the upper limiting part 3.

[0034] As one of the embodiments, the lower limiting part 1 can be an equal-width strip-shaped structure, and the length size is greater than the length size of the long and flat hole.

[0035] Specifically, the upper part of the lower limiting part 1 has a length greater than that of the lower part, and the horizontal cross section is a rectangle. As a preferred embodiment, the lower part of the lower limiting part 1 is an inverted isosceles trapezoidal structure. When manufacturing, the rectangular block can be used to remove the corner area of the two ends of the lower part.

[0036] As a further preferred scheme, the length of the bottom edge of the lower limiting part 1 is slightly greater than the length of the long and flat hole, which can effectively prevent the lower limiting part 1 from falling off from the long and flat hole.

[0037] In addition, the two ends of the length direction of the lower limiting part 1 are smoothly transitioned, which can further reduce the friction and facilitate installation.

[0038] When in use, one end of the lower limiting part 1 is first inserted into the long and flat hole obliquely downward, and due to the height of the connecting part 2 matched with the depth of the long and flat hole, one end of the upper limiting part 3 will press the surrounding area of the long and flat hole, and the greater the oblique insertion angle, the greater the pressing area. In order to facilitate the insertion, the length of the bottom edge of the lower limiting part 1 is reduced in the embodiment, especially the material removed at the two ends, which can effectively reduce the oblique angle when the end part is pressed with the long and flat hole, so that the other end of the lower limiting part 1 can more easily enter the lower part of the long and flat hole.

[0039] Regarding the structure of the connecting part 2, the width of the connecting part 2 is equal to the width of the lower limiting part 1.

[0040] The connecting part 2 is connected between the center of the lower limiting part 1 and the center of the upper limiting part 3.

[0041] As to the upper limiting part 3, a disc structure can be adopted, and the diameter is less than the length of the lower limiting part 1, which can prevent the disconnection and increase the contact area with the to-be-connected part 2, thereby improving the connecting strength.

[0042] The hand screwing part 4 is a half disc structure, which is vertically arranged on the upper limiting part 3, and is convenient for the hand operation.

[0043] As a preferred scheme, the hand screwing part 4 passes through the center of the upper limiting part 3, and forms an angle of 45-90 degrees with the length direction of the lower limiting part 1, which is convenient for the hand to apply the force transversely, and the connecting part is inserted along the length direction of the flat and long hole.

[0044] Through the above design, the connecting part of the flat and long hole adopts a one-piece structure, and only one part is needed to complete the connecting work, compared with the combination mode of the traditional bolt and nut, the connection will not be invalid due to the loss of the parts.

[0045] Moreover, the artificial operation is simple, and only one insertion and one pulling are needed to complete the operation, without screwing the screw.

[0046] Moreover, the connecting part 2 between the lower limiting part 1 and the upper limiting part 3 adopts a square structure, compared with the cylindrical structure of the bolt, the square structure will not rotate in the flat and long hole, thereby preventing the disconnection.

Claims

1. An elongated slot connector, characterized by, From bottom to top, lower limit part (1), connecting part (2), upper limit part (3) and hand screw part (4) are arranged; The upper surface of the lower limit part (1) is a plane; The connecting part (2) is a square structure, connected between the lower limit part (1) and the upper limit part (3), the height is matched with the depth size of the oblong hole, and the two side end faces are aligned with the facing of the two side outer walls of the lower limit part (1); The lower surface of the upper limit part (3) is a plane, and the maximum size perpendicular to the length direction of the lower limit part (1) is greater than the width of the lower limit part (1); The hand screw part (4) stands on the upper limit part (3).

2. A slot connector according to claim 1, wherein The lower limit part (1) is an equal-width strip-shaped structure.

3. A slot connector according to claim 2, wherein The upper part length of the lower limit part (1) is greater than the lower part length, and the horizontal cross section is a rectangle.

4. A slot connector according to claim 3, wherein The lower part of the lower limit part (1) is an inverted isosceles trapezoidal structure.

5. An elongated aperture connector according to claim 2, wherein, The length direction of the lower limit part (1) is smoothly transitioned at both ends.

6. A slot connector according to claim 2, wherein The width of the connecting part (2) is equal to the width of the lower limit part (1).

7. An elongated aperture connector according to claim 6, wherein, The connecting part (2) is connected between the center of the lower limit part (1) and the center of the upper limit part (3).

8. A slot connector according to claim 1, wherein The upper limit part (3) is a circular disc structure, and the diameter is less than the length of the lower limit part (1).

9. An elongated aperture connector according to claim 1, wherein, The hand screw part (4) is a semicircular disc structure, which is vertically arranged on the upper limit part (3).

10. An elongated aperture connector according to claim 9, wherein, The hand screw part (4) passes through the center of the upper limit part (3) and forms an angle of 45-90 degrees with the length direction of the lower limit part (1).

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