Fastener with locking function

Abstract

The utility model relates to the technical field of fasteners, and discloses a fastener with a locking function, which comprises a bolt body and a nut, the nut is in threaded connection with the bolt body, the top surface of the bolt body is provided with a placing hole I along the vertical direction, a conical block is slidably connected in the placing hole I along the vertical direction, and the conical block is in threaded connection with the bolt body. A second through hole is formed in the peripheral side of the bolt body, and a fixing pin abutting against the conical block is slidably connected into the second through hole. The two fixing pins have the limiting effect on the bolt body, the situation that the bolt body moves relative to the through hole is reduced, and the connecting strength between the bolt body and the through hole is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fastener technical field, concretely is a fastener with locking function. BACKGROUND

[0002] Fastener is also called bolt, and the bolt is a cylindrical threaded fastener with nut for connecting two or more components, and is widely used in various industrial equipment and daily life, such as in automobile, building, railway, bridge and other industries, the bolt is an important tool for connecting and fixing various components, and tools such as screwdriver and wrench are often used for installation.

[0003] The Chinese patent with publication number CN217519037U discloses a hexagonal head bolt fastener, which comprises a screw rod and a nut, the nut is threadedly installed with the screw rod, and further comprises a bolt assembly and a filling assembly. The bolt assembly comprises a bolt head and a round rod, the round rod is connected to the top of the screw rod, and the bolt head is connected to the top of the round rod. A first spare hole is formed in the top of the bolt head, and a second spare hole is formed in the side of the nut. According to the scheme, the first spare hole is arranged in the top of the bolt head, a tool can be inserted into the first spare hole and then rotated, the bolt head can be rotated, and when the outer wall of the bolt head is worn out and cannot be used normally, the bolt can be unscrewed through the first spare hole. Similarly, when the outer wall of the nut is severely worn and difficult to rotate, a tool can be inserted into the second spare hole to rotate the nut.

[0004] However, in the prior art, when the bolt is inserted into the through hole for use, the bolt and the through hole are prone to relative rotation, which affects the use strength of the bolt, and further improvement is needed.

[0005] Therefore, based on the above technical problems, it is necessary for those skilled in the art to develop a fastener with locking function. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a fastener with locking function to solve the problems in the background art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] A fastener with locking function technical scheme, including bolt body and nut, the nut is threadedly connected on the bolt body, the top surface of the bolt body is provided with a placing hole one along the vertical direction, the placing hole one is slidably connected with a taper block along the vertical direction, the circumferential side of the bolt body is provided with a through hole two, and the through hole two is slidably connected with a fixed pin abutting against the taper block.

[0009] As a preferred technical scheme, the side wall of the second through hole is horizontally provided with a spring, and the other end of the spring is fixed to the inner end of the fixing pin.

[0010] As a preferred technical scheme, the top end of the screw rod is provided with a bracelet.

[0011] As a preferred technical scheme, the nut is provided with a plurality of third through holes on the circumferential side.

[0012] As a preferred technical scheme, the bottom wall of the first placement hole is provided with an arc block matched with the conical block.

[0013] As a preferred technical scheme, the top end of the bolt is detachably provided with an anti-skid cover, and the bracelet is arranged in the anti-skid cover.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] (1) After the bolt body is placed into the through hole, the conical block is moved downward, the two fixing pins are horizontally moved under the driving of the conical block, the two fixing pins are moved outward along the two second through holes and abut against the hole wall of the through hole, the two fixing pins have a limiting effect on the bolt body, the movement between the bolt body and the through hole is reduced, and the connection strength between the bolt body and the through hole is further improved.

[0016] (2) The screw rod is rotated, the conical block is vertically moved under the driving of the screw rod, when the two fixing pins need to be moved, the user only needs to twist the screw rod, and the operation of the user is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an embodiment 1 cross-sectional view of the fastener with the locking function.

[0018] Figure 2 It is an embodiment 2 cross-sectional view of the fastener with the locking function.

[0019] In the drawing, 1, bolt body; 2, nut; 3, first placement hole; 4, conical block; 5, second through hole; 6, fixing pin; 7, spring; 8, threaded hole; 9, screw rod; 10, bracelet; 11, third through hole; 12, arc block; 13, anti-skid cover. DETAILED DESCRIPTION

[0020] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a further detailed description. For those skilled in the art, this utility model can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of this utility model by illustrating examples.

[0021] Example 1: As Figure 1 As shown, this utility model provides a fastener technical solution with locking function: it includes a bolt body 1, on which a nut 2 is threadedly connected. The user inserts the bolt body 1 into the through hole, and then threads the nut 2 onto the bolt body 1 to achieve fixation.

[0022] In this embodiment, a placement hole 3 is provided vertically on the top surface of the bolt body 1. The placement hole 3 is cylindrical in shape. A conical block 4 is slidably connected vertically inside the placement hole 3. At the same time, two through holes 5 are symmetrically provided on the periphery of the bolt body 1. The two through holes 5 are horizontally arranged and connected to the placement hole 3. Fixing pins 6 are slidably connected horizontally inside the two through holes 5. After the bolt body 1 is placed into the through hole, the conical block 4 is moved downward. The conical block 4 drives the two fixing pins 6 to move horizontally. The two fixing pins 6 move outward along the two through holes 5 and abut against the hole wall of the through hole. The two fixing pins 6 have a limiting effect on the bolt body 1, reducing the spontaneous movement of the bolt body 1 in the through hole and further improving the connection strength between the bolt body 1 and the through hole.

[0023] In this embodiment, the placement hole 3 is divided into two parts. The upper part of the placement hole 3 is a threaded hole 8. A screw 9, which is fixed to the conical block 4, is threadedly connected in the threaded hole 8. When the screw 9 is rotated, the screw 9 drives the conical block 4 to move vertically. When it is necessary to move the two fixing pins 6, the user only needs to turn the screw 9, which is convenient for the user's operation.

[0024] In this embodiment, an arc-shaped block 12 adapted to the conical block 4 is installed on the bottom wall of the placement hole 3. After the conical block 4 moves to a pre-set position, the conical block 4 just enters the arc-shaped block 12. The arc-shaped block 12 has a limiting effect on the downward movement of the conical block 4.

[0025] In the embodiment, two springs 7 are horizontally arranged on the side wall of the through hole two 5, the two springs 7 are symmetrically arranged, and the other end of the two springs 7 is fixed with the inner end of the two fixed pins 6, when the outer end of the two fixed pins 6 is located outside, the spring 7 is in a compressed state, when the two fixed pins 6 are not needed, the user only needs to move the conical block 4 upwards, the two springs 7 return to deformation and drive the two fixed pins 6 to move to the pre-set position.

[0026] In the embodiment, the through hole three 11 is arranged on the side of the nut 2, when the bolt slips, the user can insert the device for rotating the nut 2 into the through hole three 11, so that the user can conveniently rotate the nut 2.

[0027] In the embodiment, in order to facilitate the user to rotate the screw rod 9, the bracelet 10 is arranged at the top end of the screw rod 9, when the bolt is rotated, the user can hold the bracelet 10.

[0028] Embodiment 2: refer to Figure 2 The difference between the embodiment 1 and the embodiment 2 is that the circular groove is arranged on the top surface of the bolt body 1, the anti-skid cover 13 is detachably arranged in the circular groove, the bracelet 10 is arranged in the circular groove, and the circular groove has a protection effect on the bracelet 10.

[0029] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

[0030] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore it cannot be understood as a limitation of the utility model.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The embodiments described above are not exhaustive, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the invention, enabling those skilled in the art to effectively utilize the invention and its modifications. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. A fastener with a locking function, characterized in that, The bolt body (1) and nut (2) are included. The nut (2) is threaded onto the bolt body (1). The top surface of the bolt body (1) has a vertically oriented placement hole (3). A conical block (4) is slidably connected in the vertical direction inside the placement hole (3). A through hole (5) is slidably connected in the through hole (5) and a fixing pin (6) abuts against the conical block (4). A spring (7) is horizontally arranged on the side wall of the second through hole (5), and the other end of the spring (7) is fixed to the inner end of the fixing pin (6); The placement hole 1 (3) is a threaded hole (8), and the threaded hole (8) is internally threaded with a screw (9) that is fixed to the conical block (4); An arc-shaped block (12) adapted to the conical block (4) is installed on the bottom wall of the placement hole (3).

2. A fastener with locking function according to claim 1, characterized in that: A wristband (10) is installed at the top of the screw (9).

3. A fastener with locking function according to claim 1, characterized in that: The nut (2) has multiple through holes (11) on its circumference.

4. A fastener with locking function according to claim 2, characterized in that: The top surface of the bolt body (1) is provided with an annular groove, and an anti-slip cover (13) is detachably installed in the annular groove.

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