A wire clamp with phased opening restrictions

Abstract

This utility model belongs to the field of civil explosives production technology and special equipment. It discloses a wire clamp with a phased opening restriction, comprising a base and a top cover. The base has a plate-shaped first extension extending away from the front of the base at its tail. Rotating shafts are respectively provided on the left and right sides of the first extension. An abutment block is provided below the first extension, and the rear end face and lower end face of the abutment block have a chamfered structure. The top cover has ear plates on the left and right sides of its tail, with rotating shaft connection holes in the ear plates. The base and top cover are connected to the rotating shafts by rotating the ear plates. When the top cover rotates along the rotating shafts within a specific angle range, the tail of the top cover contacts and presses against the chamfered structure of the abutment block, forming a point positioning or range positioning of the relative opening angle of the base and top cover. This wire clamp can lock after the base and top cover are opened to a certain angle, facilitating subsequent assembly and use.

Description

Technical Field

[0001] This utility model belongs to the field of civil explosives production technology and special equipment, and in particular is a wire clamp with a phased opening restriction. Background Technology

[0002] In the production process of wire clamps, after the base and top cover of the clamp are assembled, they need to be fed to the next stage of assembly equipment via a vibratory feeder. During the feeding process in the vibratory feeder, the feeder continuously vibrates, and existing wire clamp bases and top covers lack damping and limiting structures. Therefore, the base and top cover are prone to closing during the movement of the wire clamp in the vibratory feeder. If the base and top cover close, the subsequent assembly equipment cannot add the annular metal piece to the wire clamp, thus causing problems during the automatic assembly process of the wire clamp.

[0003] Secondly, during the use of wire clamps, the base and top cover need to be kept open to facilitate wiring due to different usage environments. However, the base and top cover of existing wire clamps lack damping and limiting structures, making it impossible to keep them open, which can cause inconvenience during use. Utility Model Content

[0004] To address the aforementioned issues, this invention proposes a wire clamp with a phased opening restriction. This wire clamp increases rotational friction after the base and top cover are opened to a certain angle, thereby facilitating subsequent assembly and use.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A wire clamp with a phased opening restriction includes a base and a top cover. The tail of the base has a plate-shaped first extension extending away from the front of the base. A pivot is provided on the left and right sides of the first extension. An abutment block is provided below the first extension. The rear end face and the lower end face of the abutment block have a chamfered structure. The upper cover has ear plates on the left and right sides of the tail, and the ear plates have swivel connection holes. The base and the upper cover are connected by rotating the ear plates to the swivel. When the top cover rotates along the pivot within a specific angle range, the tail of the top cover contacts and presses against the chamfered structure of the abutment block, forming a point positioning or range positioning of the relative opening and closing angles of the base and the top cover.

[0006] Preferably, the chamfered structure is a first snap-fit ​​surface with a smooth transition.

[0007] Preferably, the tail of the upper cover has a plate-shaped second extension that extends away from the front of the upper cover, and the ear plates are disposed on the left and right sides of the second extension.

[0008] Preferably, the connection between the rear end face of the second extension portion and the lower part of the second extension portion is formed with a chamfered structure.

[0009] Preferably, the connection between the rear end face of the second extension portion and the lower part of the second extension portion is a smoothly transitioning second snap-fit ​​surface.

[0010] Preferably, there are two abutment blocks that are spaced apart.

[0011] The beneficial effects of using this utility model are: This clamp features a first extended portion at the tail of the base, with an abutment block below it. The rear end face and lower end face of the abutment block have a chamfered structure. When the base and the top cover rotate relative to each other via the hinged structure at the tail, the tail of the top cover contacts and presses against the chamfered structure. This increases the rotational friction between the base and the top cover, achieving point positioning or range positioning of the relative opening and closing angles of the base and the top cover. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the wire clamp with phased opening restriction of this utility model.

[0013] Figure 2 This is an exploded view of the base and top cover of the wire clamp with phased opening restrictions of this utility model.

[0014] Figure 3 for Figure 1 A magnified view of section A in the image.

[0015] Figure 4 This is a schematic diagram of the wire clamp with phased opening restrictions of this utility model, opened to the locking point.

[0016] Figure 5 This is a schematic diagram of the wire clamp with phased opening restrictions of this utility model after it has been opened beyond the locking position.

[0017] The reference numerals in the figures include: 1-Base, 11-Hinge, 12-First extension, 121-Abutting block, 1211-First snap-fit ​​curved surface; 2-Top cover, 21-Ear plate, 22-Second extension, 23-Rear end face of the second extension, 24-Second snap-fit ​​curved surface. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this technical solution clearer, the following detailed description, in conjunction with specific embodiments, further illustrates this technical solution. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this technical solution.

[0019] like Figure 1 and Figure 2 As shown, this embodiment discloses a cable clamp with a phased opening restriction. The cable clamp mainly includes a base 1 and an upper cover 2. The left and right sides of the tail of the base 1 are respectively provided with a rotating shaft 11 integrally formed with the main body of the base 1, and the left and right sides of the tail of the upper cover 2 are respectively provided with an ear plate 21 integrally formed with the upper cover 2.

[0020] like Figure 3 As shown, a first extension portion 12 is provided at the tail end of the base 1 near the junction of the base 1 and the upper cover 2. The first extension portion 12 is integrally formed with the base 1 and is basically a horizontally arranged plate-like structure. Two abutment blocks 121 are provided below the first extension portion 12, and the abutment blocks 121 are integrally formed with the first extension portion 12. The two abutment blocks 121 are spaced apart and extend along the front-rear direction of the base 1. The rear end face and the lower end face of the abutment block have a chamfer structure. In this embodiment, the chamfer structure between the rear end face and the lower end face of the abutment block is a smoothly transitioning first snap-fit ​​curved surface 1211.

[0021] A second extension 22 is provided at the tail end of the upper cover 2 near the junction of the base 1 and the upper cover 2. The second extension 22 is integrally formed with the upper cover 2. The top surface of the second extension 22 is basically flush with the top surface of the upper cover 2. On both the left and right sides of the second extension 22, there are downwardly extending ear plates 21. The ear plates 21 are integrally formed with the second extension 22. A pivot 11 connection hole is opened in the ear plate 21. The base 1 and the upper cover 2 are connected by rotating the ear plate 21 to the pivot 11.

[0022] like Figure 4 As shown, when the upper cover 2 and the base 1 are hinged through the ear plate 21 and the pivot 11, after the base 1 and the upper cover 2 rotate relative to each other to a certain angle, the tail of the upper cover 2 will contact the first snap-fit ​​curved surface 1211 of the abutment block 121. Since both the base 1 and the upper cover 2 are made of plastic material, both the base 1 and the upper cover 2 have a certain elastic deformation ability. Therefore, the tail of the upper cover 2 and the first snap-fit ​​curved surface 1211 form contact and compression. At this time, the friction between the tail of the upper cover 2 and the first snap-fit ​​curved surface 1211 increases. When the base 1 and the upper cover 2 are not intentionally moved, the base 1 and the upper cover 2 are difficult to fasten.

[0023] In this embodiment, a large frictional force is generated when the base 1 and the top cover 2 are opened relative to each other at 120°-150°. In other embodiments, a large frictional force can also be generated when the base 1 and the top cover 2 are opened relative to each other at a specific angle, that is, to achieve point positioning or interval positioning to form the relative opening angle of the base 1 and the top cover 2.

[0024] Preferably, the tail of the upper cover 2 has a plate-shaped second extension 22 extending away from the front of the upper cover 2, and ear plates 21 are disposed on the left and right sides of the second extension 22. The connection between the rear end face 23 of the second extension and the lower part of the second extension 22 forms a chamfer structure. The connection between the rear end face 23 of the second extension and the lower part of the second extension 22 is a smoothly transitioned second snap-fit ​​curved surface 24. The function of the second snap-fit ​​curved surface 24 is to prevent the second extension 22 from jamming with the first snap-fit ​​curved surface 1211, and to form an area where the base 1 and the upper cover 2 rotate to increase friction.

[0025] like Figure 5 As shown, another advantage of the base 1 having a first extension 12 and the top cover 2 having a second extension 22 is that the base 1 and the top cover 2 can also cross the range of increased friction, reaching a relative opening angle of 180 degrees. The base 1 and the top cover 2 need to cross the range of increased friction to engage, and in this state, a large driving force is required to cross this range, making it more difficult for the base 1 and the top cover 2 to engage unintended.

[0026] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0027] The above content is only a preferred embodiment of this utility model. For those skilled in the art, many changes can be made in the specific implementation and application scope based on the ideas of this technical content. As long as these changes do not depart from the concept of this utility model, they all fall within the protection scope of this patent.

Claims

1. A cable clamp with phased opening restriction, comprising a base and a top cover, characterized in that: The base has a plate-shaped first extension extending away from the front of the base at its tail end. A pivot is provided on the left and right sides of the first extension, and an abutment block is provided below the first extension. The rear end face and the lower end face of the abutment block have a chamfered structure. The upper cover has ear plates on the left and right sides of the tail, and the ear plates have swivel connection holes. The base and the upper cover are connected by rotating the ear plates to the swivel. When the top cover rotates along the pivot within a specific angle range, the tail of the top cover contacts and presses against the chamfered structure of the abutment block, forming a point positioning or range positioning of the relative opening and closing angles of the base and the top cover.

2. The wire clamp with phased opening restriction according to claim 1, characterized in that: The chamfered structure is a first snap-fit ​​surface with a smooth transition.

3. The wire clamp with phased opening restriction according to claim 1, characterized in that: The tail of the upper cover has a plate-shaped second extension that extends away from the front of the upper cover, and the ear plates are disposed on the left and right sides of the second extension.

4. The wire clamp with phased opening restriction according to claim 3, characterized in that: The connection between the rear end face of the second extension portion and the lower part of the second extension portion forms a chamfered structure.

5. The wire clamp with phased opening restriction according to claim 4, characterized in that: The connection between the rear end face of the second extension portion and the lower part of the second extension portion is a smoothly transitioning second snap-fit ​​surface.

6. The wire clamp with phased opening restriction according to claim 1, characterized in that: There are two abutment blocks, which are spaced apart.

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