Guide rail sliding type bolt fastener

Abstract

The utility model belongs to the technical field of bolt fasteners, and particularly relates to a guide rail sliding type bolt fastener which comprises a bolt rod and an L-shaped gasket, one end of the bolt rod is fixedly connected with a bolt head, the outer surface of the bolt head is fixedly connected with a table-shaped hoop in a penetrating mode, and the outer surface of the table-shaped hoop is provided with four slit rails which are distributed at equal intervals in an annular array mode. The outer surface of the bolt rod is in threaded connection with a nut, four equidistant annular array distribution point inserting grooves are formed in one end of the nut, and an external connection structure is jointly connected into the four inserting grooves in a penetrating mode. The contact ends of the four L-shaped fan blades in the L-shaped gasket are each provided with a plurality of anti-skid edges, and when the device is used for fastening operation, and the nut is tightened to enable the L-shaped gasket to be attached to a connecting body, the anti-skid edges can be embedded into the surface of the connecting body and tightly clamped with the connecting body, so that the anti-skid effect is achieved, and the phenomenon that the anti-skid edges are damaged when the nut is screwed is avoided. And the L-shaped gasket rotates and cannot be clamped with the connecting body, so that the fastening operation of the device is influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of bolt fasteners, and specifically relates to a guide rail sliding bolt fastener. Background Art

[0002] With the rapid development of modern engineering technology, especially in the fields of civil engineering and mechanical assembly, the demand for connecting and fastening structural components is increasing day by day. During the fastening process of traditional bolt connectors, operations are usually required on both sides of the component, that is, inserting the bolt rod from one side of the bolt hole and using tools to tighten the nut on the other side. Although this connection method is simple to operate and has good load-bearing capacity, in some specific scenarios, such as the connection of closed cross-sections like steel pipe columns, due to the presence of blocking parts that cannot be crossed by hand, the traditional method is not applicable;

[0003] In a guide rail sliding single-sided bolt fastener with the publication number CN208764081U, the guide rail sliding single-sided bolt fastener is composed of an L-shaped gasket, a frustum-shaped hoop, a round head bolt, and a nut. The L-shaped gasket is composed of four L-shaped fan blades connected by elastic material A. The frustum-shaped hoop is provided with four slit tracks along the circumferential direction, and the tail end is provided with a concave part; during the movement of the L-shaped gasket along the slit track, radial contraction or expansion can be achieved. When the L-shaped fan blades of the L-shaped gasket touch each other, the radial dimension is smaller than the bolt hole diameter. When the L-shaped gasket separates from the frustum-shaped hoop and expands, its radial dimension is larger than the bolt hole diameter, thereby achieving single-sided fastening. The utility model can achieve single-sided operation, connection and fastening between connecting plates, has good mechanical properties, and can be reused;

[0004] When the above-mentioned guide rail sliding single-sided bolt fastener is in use, single-sided operation can be achieved through the L-shaped gasket. However, the contact surface between the L-shaped gasket and the connecting body is relatively smooth. During the fastening operation of the bolt, the L-shaped gasket is prone to sliding with the connecting body, which will affect the fastening operation of the bolt. Moreover, during the fastening operation, when the operation scenario is relatively narrow, it is also inconvenient for the operator to tighten the nut. Therefore, in view of the above problems, a guide rail sliding bolt fastener is proposed. Summary of the Invention

[0005] The main purpose of the utility model is to provide a guide rail sliding bolt fastener, which can effectively solve the problems in the background art.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A guide rail sliding bolt fastener includes a bolt rod and an L-shaped gasket. One end of the bolt rod is fixedly connected with a bolt head, and a frustum-shaped ferrule is fixedly connected through the outer surface of the bolt head. Four equally spaced annularly arrayed slit tracks are arranged on the outer surface of the frustum-shaped ferrule. A nut is threadedly connected to the outer surface of the bolt rod. Four equally spaced annularly arrayed point slots are provided at one end of the nut, and an external structure is commonly inserted and connected inside the four slots.

[0008] Preferably, the L-shaped gasket is slidably connected with the frustum-shaped ferrule and inserted through the bolt rod.

[0009] Preferably, the L-shaped gasket includes four L-shaped fan blades. The four L-shaped fan blades are equally spaced and annularly arrayed, and elastic materials are commonly fixedly connected between the four L-shaped fan blades. Fixed beads are fixedly connected to the inner surfaces of the four L-shaped fan blades, and a plurality of anti-slip ridges are fixedly connected to the contact ends of the four L-shaped fan blades.

[0010] Preferably, the four L-shaped fan blades are commonly inserted through the bolt rod and slidably connected with the frustum-shaped ferrule, and the four fixed beads are respectively slidably connected with the four slit tracks.

[0011] By adopting the above technical solution: by providing a plurality of equally spaced anti-slip ridges at the contact end of the L-shaped gasket, when the device is in use and the nut is rotated to make the L-shaped gasket contact the connecting body, the plurality of anti-slip ridges in the L-shaped gasket can be mutually engaged with the surface of the connecting body, avoiding the rotation of the L-shaped gasket during the fastening operation of the device and affecting the fastening operation of the device.

[0012] Preferably, the external structure includes a fixed head. A hexagonal groove is provided at one end of the fixed head, and four equally spaced annularly arrayed connecting rods are fixedly connected to the other end of the fixed head.

[0013] Preferably, the four connecting rods are respectively inserted and connected into the four slots.

[0014] By adopting the above technical solution: by providing an external structure in the device, when the device is operated and used in a narrow space, the external structure can be connected to the slots in the nut, and then a hexagonal wrench is inserted into the hexagonal groove inside the external structure, so as to conveniently tighten the nut and facilitate the operation and use of the device in a narrow space.

[0015] The beneficial effects of the present utility model:

[0016] 1. The present utility model provides a rail - sliding bolt fastener. By arranging a number of anti - slip ridges at the contact ends of the four L - shaped fan blades in the L - shaped gasket, when using this device for fastening operation, when tightening the nut so that the L - shaped gasket fits with the connecting body, a number of anti - slip ridges will embed into the surface of the connecting body and tightly engage with the connecting body, playing a role in anti - slipping. This can avoid the L - shaped gasket from rotating when the nut is turned, preventing it from being unable to engage with the connecting body and affecting the fastening operation of the device.

[0017] 2. The present utility model provides a rail - sliding bolt fastener. By opening four slots at one end of the nut and arranging an external structure in the device, when the operation space is relatively narrow during the use of the device, the external structure can be connected to the four slots in the nut, and then a hexagonal wrench is inserted into the hexagonal groove in the external structure to rotate it, thus facilitating the fastening operation of the device in a narrow space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0019] Figure 1 is the overall structure schematic diagram of the present utility model;

[0020] Figure 2 is the schematic diagram of the overall structure split of the present utility model;

[0021] Figure 3 is the overall structure schematic diagram of the L - shaped gasket in the present utility model;

[0022] Figure 4 is the overall structure schematic diagram of the external structure in the present utility model.

[0023] LEGEND DESCRIPTION:

[0024] 1. Bolt rod; 2. Bolt head; 3. Frustum - shaped ferrule; 4. Slit track; 5. L - shaped gasket; 6. Nut; 7. Slot; 8. External structure; 51. L - shaped fan blade; 52. Elastic material; 53. Fixed ball; 54. Anti - slip ridge; 81. Fixed head; 82. Hexagonal groove; 83. Connecting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] The following gives specific embodiments.

[0027] Please refer to Figure 1 - Figure 2 , the present invention provides a rail-sliding bolt fastener, including a bolt rod 1 and an L-shaped gasket 5. One end of the bolt rod 1 is fixedly connected with a bolt head 2. A frustum-shaped ferrule 3 is fixedly connected through the outer surface of the bolt head 2. Four equally spaced annularly arrayed slit tracks 4 are arranged on the outer surface of the frustum-shaped ferrule 3. A nut 6 is threadedly connected to the outer surface of the bolt rod 1. Four equally spaced annularly arrayed point slots 7 are opened at one end of the nut 6. An external structure 8 is commonly inserted and connected inside the four slots 7. The L-shaped gasket 5 is slidably connected to the frustum-shaped ferrule 3 and is inserted and connected to the bolt rod 1.

[0028] Furthermore, as Figure 3 shown, the L-shaped gasket 5 includes four L-shaped fan blades 51. The four L-shaped fan blades 51 are equally spaced and annularly arrayed. Elastic materials 52 are commonly fixedly connected between the four L-shaped fan blades 51. Fixed beads 53 are fixedly connected to the inner surfaces of the four L-shaped fan blades 51. A number of anti-slip ridges 54 are fixedly connected to the contact ends of the four L-shaped fan blades 51. The four L-shaped fan blades 51 are commonly inserted and connected to the bolt rod 1 and are commonly slidably connected to the frustum-shaped ferrule 3. The four fixed beads 53 are respectively slidably connected to the four slit tracks 4.

[0029] Through the above solution: By providing a number of equally spaced anti-slip ridges 54 at the contact end of the L-shaped gasket 5, when the device is in use and the nut 6 is turned so that the L-shaped gasket 5 contacts the connecting body, a number of anti-slip ridges 54 in the L-shaped gasket 5 can be mutually engaged with the surface of the connecting body, avoiding the rotation of the L-shaped gasket 5 during the fastening operation of the device and affecting the fastening operation of the device.

[0030] Furthermore, as Figure 4 shown, the external structure 8 includes a fixed head 81. A hexagonal groove 82 is opened at one end of the fixed head 81. Four equally spaced annularly arrayed connecting rods 83 are fixedly connected to the other end of the fixed head 81. The four connecting rods 83 are respectively inserted and connected to the four slots 7.

[0031] Through the above scheme: by providing an external structure 8 in the device, when the device is operated and used in a small space, the external structure 8 can be connected to the slot 7 in the nut 6, and then a hexagonal wrench can be inserted into the hexagonal groove 82 in the external structure 8, so that the nut 6 can be conveniently tightened, which is convenient for the operation of the device in a small space.

[0032] Working principle: The utility model provides a guide rail sliding bolt fastener, whose core features lie in the unique structure of the L-shaped gasket 5 and the convenient operation design of the nut 6. Specifically, the L-shaped gasket 5 is cleverly arranged with multiple anti-slip edges 54 at the contact ends of its four L-shaped fan blades 51. This design shows significant advantages in the fastening process: when the nut 6 is gradually tightened, forcing the L-shaped gasket 5 to fit tightly against the surface of the connector, the anti-slip edges 54 are like tiny anchor points, deeply embedded in the material of the connector, forming a strong bite force, which effectively prevents the L-shaped gasket 5 from accidentally rotating during the tightening process. This mechanism ensures a stable and secure connection between the fastener and the connector, and avoids fastening failure caused by looseness.

[0033] In addition, in response to the challenges of narrow space that may be encountered in actual operation, the utility model carefully designs four slots 7 at one end of the nut 6, and provides an external structure 8 as a solution. In a restricted operating environment, the user only needs to simply align and insert the corresponding part of the external structure 8 into the slot 7 of the nut 6, and then use a hexagonal wrench to easily insert it into the hexagonal groove 82 of the external structure 8 for rotation. This innovative design greatly broadens the scope of application of fasteners, so that even in extremely limited space, the fastening operation can be completed efficiently and conveniently.

[0034] In summary, the utility model enhances the stability of the fastener through the anti-slip edge 54 design of the L-shaped gasket 5, and at the same time utilizes the ingenious combination of the slot 7 of the nut 6 and the external structure 8 to solve the problem of fastening operation in a small space, bringing unprecedented convenience and efficiency to the bolt tightening operation.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A guide rail sliding bolt fastener, comprising a bolt rod (1) and an L-shaped gasket (5), characterized in that: One end of the bolt rod (1) is fixedly connected to a bolt head (2), the outer surface of the bolt head (2) is interlaced and fixedly connected to a table-shaped hoop (3), the outer surface of the table-shaped hoop (3) is provided with four slit tracks (4) distributed in an equidistant annular array, the outer surface of the bolt rod (1) is threadedly connected to a nut (6), one end of the nut (6) is provided with four slots (7) distributed in an equidistant annular array, and the four slots (7) are interlaced and connected together with an external structure (8) inside.

2. A guide rail sliding bolt fastener according to claim 1, characterized in that: The L-shaped gasket (5) is slidably connected to the table-shaped hoop (3) and is interlacedly connected to the bolt rod (1).

3. The guide rail sliding bolt fastener according to claim 1, characterized in that: The L-shaped gasket (5) comprises four L-shaped segments (51), the four L-shaped segments (51) are arranged in an equidistant annular array, and elastic material (52) is fixedly connected between the four L-shaped segments (51), fixed round beads (53) are fixedly connected to the inner surfaces of the four L-shaped segments (51), and a plurality of anti-slip edges (54) are fixedly connected to the contact ends of the four L-shaped segments (51).

4. A guide rail sliding bolt fastener according to claim 3, characterized in that: The four L-shaped segments (51) are interpenetratingly connected with the bolt rod (1) and are slidably connected with the table-shaped hoop (3); the four fixing balls (53) are slidably connected with the four slit rails (4) respectively.

5. The guide rail sliding bolt fastener according to claim 1, characterized in that: The external connection structure (8) comprises a fixed head (81), one end of the fixed head (81) is provided with a hexagonal groove (82), and the other end of the fixed head (81) is fixedly connected to four connecting rods (83) distributed in an equidistant annular array.

6. A guide rail sliding bolt fastener according to claim 5, characterized in that: The four connecting rods (83) are respectively inserted and connected with the four slots (7).

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