Stud jointing clamp

Abstract

The utility model relates to the field of electrical equipment, in particular to a stud jointing clamp, which comprises a lead mechanism and a fastening mechanism connected with a stud, the lead mechanism comprises a wiring hole, a lead gasket, three threaded holes and a bolt, and the lead gasket is provided with an arc-shaped groove with non-uniform width and thickness, so that the contact area with a lead is increased, and the wiring quality is improved. And the conductivity and the stability are improved. And the fastening mechanism comprises an inverted halfpace groove structure and an inverted frustum which is internally provided with an internal thread matched with the stud, so that the convenience and the stability of the connection between the stud and the wire clamp are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of electrical equipment, and particularly relates to a stud terminal. TECHNICAL BACKGROUND

[0002] The stud terminal is a connecting device of a stud and a wire, is an important component of a stud structure electrical connection, and directly influences safe operation of electrical equipment and efficiency of electric energy transmission. However, the existing stud terminal usually adopts a mode of directly extruding and fixing the wire by a bolt, the connecting mode is easily affected by factors such as temperature change and vibration, the bolt is prone to loosening, the stability of electrical connection is affected, and the contact area of the bolt and the wire is small, so that the conductive area is limited, the wire is often damaged due to excessive local stress, and the resistance is increased, so that local heating is serious. In view of the above problems, the utility model provides a stud terminal which is stable in connection, good in conductive performance and reduces damage to the wire. SUMMARY

[0003] The utility model aims at providing a stud terminal, which solves the problems of easy loosening, unsatisfactory contact effect and easy damage to external wires of the existing stud terminal during use.

[0004] The technical scheme adopted is as follows:

[0005] A stud terminal, characterized by comprising a wire mechanism and a fastening mechanism connected with a stud, the wire mechanism is connected to the side wall of the fastening mechanism, the wire mechanism comprises a terminal hole, a wire gasket, three threaded holes and a bolt, the terminal hole is arranged along the axial direction of the wire mechanism, and the wire gasket is placed in the terminal hole; a reverse ladder groove is arranged in the middle of the top end of the fastening mechanism, two sliding grooves are arranged on the side wall of the reverse ladder groove, a ring groove is arranged along the circumference of the reverse ladder groove at the bottom of the sliding groove, and the sliding groove is communicated with the ring groove; a circular groove with the same diameter as the reverse ladder groove is further arranged downward on the bottom wall of the reverse ladder groove, and a through hole matched with the stud is arranged at the bottom of the circular groove; a reverse conical table matched with the reverse ladder groove is arranged in the reverse ladder groove, an inner thread matched with the stud is arranged in the center of the reverse conical table; a plurality of grooves are uniformly distributed on the top of the reverse conical table along the circumference, and the two ends of the groove penetrate the conical surface and the inner thread surface of the reverse conical table; two sliding blocks are arranged in the middle of the conical surface of the reverse conical table, and the sliding blocks are slidingly arranged in the sliding grooves; the sliding blocks can continue to slide along the ring groove after sliding to the bottom of the sliding groove; the wire gasket is an integrated part composed of three arc-shaped tables with decreasing thickness and width from right to left, the connecting part of the three arc-shaped tables of the gasket has an arc-shaped groove recessed inward, the upper surfaces of the three arc-shaped tables are all cut to form platforms with diameters consistent with those of the three threaded holes, the platforms are aligned with the threaded holes of the wire mechanism, the bolt applies pressure to the platforms through the threaded holes, and the bottom of the bolt is embedded in the platform of the wire gasket.

[0006] Further, the bottom of the ring groove is uniformly provided with a plurality of taper grooves in the circumferential direction, the top of the sliding block is provided with a column groove, the bottom of the column groove is provided with a spring, the top of the spring is provided with a ball, the ball can slide into and out of the taper groove, thereby stabilizing the orientation of the wire guide mechanism.

[0007] Further, the bottom of the bolt is provided with a square column, a pin is arranged on the edge close to the bottom end of the square column, the arc-shaped edge of the platform is provided with a radial groove, and the pin and the radial groove are in sliding fit.

[0008] Further, one side of the gasket that is attached to the wire is provided with a protrusion that is consistent with the length of the gasket, and the size of the protrusion on the arc-shaped platform from right to left gradually increases.

[0009] The utility model discloses can improve the contact area of wire, improve the electric conductivity and the connection stability. Improve the connection ability of wire clamp and stud, improve stability and provide the convenient wiring angle. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the structure schematic diagram of the stud wiring clamp device of the utility model;

[0011] Figure 2 It is the section view of the stud wiring clamp device of the utility model;

[0012] Figure 3 It is the structure schematic diagram of the wire gasket;

[0013] Figure 4 It is the overhead view of wire gasket;

[0014] Figure 5 It is the inside protrusion schematic diagram of wire gasket;

[0015] The main component symbol explanation in drawing is as follows:

[0016] 1, gasket;2, inverted cone platform;3, the round platform of gasket;4, gasket protrusion;5, gasket recess;6, wiring hole;7, threaded hole;8, bolt. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantage of the utility model more clear and explicit, the utility model is further explained in detail below in combination with specific implementation manners and with reference to the drawings.

[0018] For example Figure 1As shown, a kind of stud terminal device, including wire mechanism, the fastening mechanism of connecting stud, wire mechanism is connected to the side wall of fastening mechanism, wire mechanism includes terminal hole, wire gasket, three threaded holes and bolt, terminal hole is arranged along the axial direction of wire mechanism, wire gasket is placed in terminal hole.The middle part of the top of fastening mechanism is provided with inverted trapezoidal groove, two grooves are opened in the side wall of inverted trapezoidal groove, and ring groove is arranged along the circumference of inverted trapezoidal groove at the bottom of groove, and groove is communicated with ring groove.The bottom wall of inverted trapezoidal groove is continuously provided with circular groove of same diameter, and through hole matched with stud is opened in the bottom of circular groove.Inverted trapezoidal groove is provided with inverted trapezoidal cone matched therewith in the inside, and internal thread is opened in the center of inverted trapezoidal cone;Multiple recesses are uniformly distributed on the top of inverted trapezoidal cone along the circumference, and the two ends of recess penetrate the taper surface and internal thread surface of inverted trapezoidal cone.Two sliding blocks are arranged in the middle part of taper surface of inverted trapezoidal cone, and sliding block is slidingly arranged in groove.After sliding block slides to the bottom of groove, it can continue to slide along ring groove, so that the connecting direction of wire mechanism can be changed.Further, multiple taper grooves are uniformly arranged in the bottom of ring groove along the circumference, column groove is arranged on the top of sliding block, spring is arranged at the bottom of column groove, and ball is arranged at the top of spring, ball can slide into and out of taper groove, to further stabilize the orientation of wire mechanism.

[0019] Wire gasket is as shown in Figure 3 Wire gasket is an integral part consisting of three arc-shaped platforms decreasing in thickness and width from right to left, and the connecting part of the three arc-shaped platforms of the gasket has an inwardly recessed arc-shaped groove, which is beneficial to extruding the external wire and buckling the wire to avoid loosening, and the upper surface of the three arc-shaped platforms is cut into a circular platform with a diameter consistent with the size of the three threaded holes as shown in Figure 4 The circular platform of the gasket is aligned with the threaded hole of the terminal mechanism, the bolt passes through the threaded hole to apply pressure to the circular platform, and then the platform disperses the local pressure to the entire gasket to extrude and fit the external wire, and the bottom of the bolt is embedded in the circular platform of the gasket to prevent the gasket from being pulled out, specifically: the bottom of the bolt is provided with a square column, a pin is arranged on the edge of the square column close to the bottom end, the arc-shaped edge of the platform is provided with a radial groove, and the pin and the radial groove are slidingly matched.The side of the gasket fitted with the wire is provided with a protrusion consistent with the length of the gasket as shown in Figure 5 The size of the protrusion on the arc-shaped platform from right to left gradually increases, which is used to embed the external wire to extrude and fit the wire to the terminal hole, thereby increasing the conductive area.

[0020] When installing, first place the inverted cone in the inverted ladder groove, and the slider in the sliding groove. Then connect the wire stud with the inverted cone through the through hole and the internal thread, and further rotate the fastening mechanism to connect the fastening mechanism with the wire stud. When connecting the external wire, first insert the wire and the gasket into the wire hole, align the circular platform of the gasket with the threaded hole of the wire connection mechanism, then insert the three bolts through the threaded holes and press the circular platform of the gasket, and then press the wire to avoid damage due to excessive local pressure. At the same time, the circular platform of the gasket is embedded in the bottom of the bolt, so that the gasket is not easy to be directly pulled off, the inside protrusion of the gasket is embedded in the wire under pressure, so that the wire is extruded to the inside wall of the wire hole, increasing the conductive area, the arc-shaped groove at each level of the gasket allows the adjacent arc-shaped platforms to have a relative bending ability, and the space for extruding the wire is different, and the thickness and width are different, so that the wire is bifurcated and contacts the back of the gasket, increasing the contact area with the wire. The characteristics of the gasket, which is narrower on the left and thicker on the right, will make the space at the end of the wire hole larger than the space at the one end of the wire hole, increasing the resistance to pulling the wire outward and improving the stability of the wire clamp.

Claims

1. A stud terminal clamp, characterized in that: The lock thread is threaded and has a hole, and the locking bolt has a lock thread on the top end, and the locking bolt has a lock thread on the bottom end, and the lock thread is locked. The wire gasket is an integrated part consisting of three arc-shaped platforms with decreasing thickness and width from right to left. There are inward-concave arc grooves at the connection of the three arc-shaped platforms of the gasket. The upper surfaces of the three arc-shaped platforms are cut into platforms with diameters consistent with the size of the three threaded holes. The platforms are aligned with the threaded holes of the wire mechanism. Bolts pass through the threaded holes to apply pressure to the platforms, and the bottom of the bolts are embedded in the platforms of the wire gasket.

2. The stud terminal clamp according to claim 1, characterized in that: A plurality of conical grooves are evenly arranged along the circumference at the bottom of the annular groove, a column groove is arranged on the top of the slider, a spring is arranged at the bottom of the column groove, and a ball is arranged on the top of the spring. The ball can slide in and out of the conical groove, thereby stabilizing the direction of the wire mechanism.

3. The stud terminal clamp according to claim 1, characterized in that: A notched circular convex block with a diameter larger than that of the bolt is provided at the bottom of the bolt, a radial groove is provided on the platform, and the notched circular convex block is slidably matched with the radial groove.

4. The stud terminal clamp according to claim 1, characterized in that: A protrusion with the same length as the gasket is provided on the side where the gasket contacts the wire, and the size of the protrusion on the arc-shaped platform gradually increases from right to left.

Images