A terminal pressing mechanism and pressing method

Abstract

A terminal press-fitting mechanism and method, belonging to the field of terminal blocks, includes a housing, a top cover, a ball bearing, and a positioning block; the top cover is provided at the top of the housing, and a cylindrical cavity is provided on the side of the rectangular block formed by the housing and the top cover; the ball bearing is disposed within the cylindrical cavity, and the ball bearing slides with the housing and the top cover; the positioning block is disposed near the opening of the cylindrical cavity, and the positioning block also slides with the housing and the top cover. The present invention not only prevents wires from slipping, but also eliminates the need for bending before use, thus avoiding difficulty in controlling the size of the ring opening and wasting time. Furthermore, the device is easy to reinstall after disassembly.

Description

Technical Field

[0001] The invention relates to a connection terminal press-fitting mechanism and a press-fitting method, belonging to the field of connection terminals. Background Art

[0002] The terminal pressing mechanism currently on the market is simple to operate. It only requires inserting the wire and then turning the screw to press the wire. However, this operation makes the wire easy to slip to both sides. Another method is to bend the insertion end of the wire into a ring and then insert it. Although this can avoid slipping, during the bending process, if the ring mouth is large, the wire will shake. The size of the ring mouth is difficult to control, so it is necessary to improve it. Summary of the Invention

[0003] The purpose of the present invention is to solve the above-mentioned problems existing in the background technology and to provide a terminal pressing mechanism and a pressing method.

[0004] The present invention achieves the above-mentioned purpose by adopting the following technical solutions:

[0005] A terminal press-fitting mechanism includes a shell, a top cover, a ball, and a positioning block; the top cover is provided at the top end of the shell, and a cylindrical cavity is provided on the side of the rectangular block formed by the shell and the top cover; the ball is arranged in the cylindrical cavity, and the ball is slidably engaged with the shell and the top cover; the positioning block is arranged at a position close to the opening of the cylindrical cavity, and the positioning block is also slidably engaged with the shell and the top cover.

[0006] A press-fitting method for a terminal block press-fitting mechanism, comprising the following steps:

[0007] Step 1: When installing, insert the wire into the round hole;

[0008] Step 2: Turn the metal ball and then replace the top cover;

[0009] Step 3: When disassembling, turn the knob, then remove the top cover, and finally remove the positioning block and wire.

[0010] Compared with the prior art, the present invention has the following advantages: the present invention can not only prevent the wire from slipping, but also eliminate the need for bending before use, thus avoiding the difficulty in controlling the size of the loop and wasting time, and the device is also easy to reinstall after disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a front view and cross-sectional view of a terminal pressing mechanism of the present invention;

[0012] Figure 2 It is a cross-sectional view of the connection between the housing and the top cover of a terminal pressing mechanism of the present invention;

[0013] Figure 3 It is a side view of the connection between the housing and the top cover of a terminal pressing mechanism of the present invention;

[0014] Figure 4 It is a schematic diagram of the position of the arc groove of a terminal pressing mechanism of the present invention;

[0015] Figure 5 It is a front cross-sectional view of a ball of a terminal press-fitting mechanism of the present invention;

[0016] Figure 6 It is a left side view of a ball of a terminal press-fitting mechanism of the present invention;

[0017] Figure 7 This is a schematic diagram of the position structure of a positioning block of a terminal pressing mechanism of the present invention;

[0018] Figure 8 It is a cross-sectional view of a positioning block of a terminal pressing mechanism of the present invention;

[0019] Figure 9 This is a structural schematic diagram of a wire insertion circular hole of a terminal pressing mechanism of the present invention;

[0020] Figure 10 This is a schematic structural diagram of a terminal press-fitting mechanism of the present invention in a wire installation completion state;

[0021] Figure 11 The present invention is a schematic structural diagram of a terminal pressing mechanism in a wire disassembly state. DETAILED DESCRIPTION

[0022] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] Specific implementation method 1: Figure 1-11 As shown, this embodiment records a terminal pressing mechanism, including a shell 1, a top cover 2, a ball 3 and a positioning block 4; the top of the shell 1 is provided with a top cover 2, and the side of the rectangular block composed of the shell 1 and the top cover 2 is provided with a cylindrical cavity; the ball 3 is arranged in the cylindrical cavity, and the ball 3 slides with the shell 1 and the top cover 2; the positioning block 4 is arranged at a position close to the opening of the cylindrical cavity, and the positioning block 4 also slides with the shell 1 and the top cover 2.

[0024] Specific implementation method 2: Figure 1-11As shown, this embodiment is a further explanation of the specific embodiment one, the shell 1 includes a shell body 11, a knob 15 and a connecting rod 16; a threaded hole is provided on the side wall of the shell body 11; the connecting rod 16 is connected to the threaded hole by a thread, and the end of the connecting rod 16 arranged inside the shell body 11 is provided with a groove 17 that penetrates the connecting rod 16 along the diameter direction of the connecting rod 16, and the end of the connecting rod 16 arranged outside the shell body 11 is fixedly connected with the knob 15; the bottom end of the inner wall of the shell body 11 is provided with a limiting sliding groove 12 along the length direction of the shell body 11, and an arc-shaped limiting groove I13 and an arc-shaped limiting groove II14 with the connecting rod 16 as the axis are provided on the inner wall of the shell body 11; the inner bottom surface of the shell body 11 is also provided with an arc-shaped groove 18 connected to the arc-shaped limiting groove I13, and the lowest point of the arc-shaped groove 18 is located below the arc-shaped limiting groove I13.

[0025] Specific implementation method three: Figure 1-11 As shown, this embodiment is a further explanation of the specific embodiment one, the top cover 2 includes a top cover body 21, an insert block 22 and a metal plate 23; the bottom end of the top cover body 21 is fixedly connected with the insert block 22, the upper end surface of the shell body 11 is provided with a slot, and the insert block 22 is inserted into the slot; the top end of the top cover body 21 is also provided with a groove, the metal plate 23 is fixedly connected in the groove, and the lower end surface of the top cover body 21 is provided with an arc-shaped limit groove III 24 and an arc-shaped limit groove IV 25; when the insert block 22 is located in the slot, the arc-shaped limit groove III 24 is connected with the arc-shaped limit groove I 13, and the arc-shaped limit groove IV 25 is connected with the arc-shaped limit groove II 14, and after being connected, they all form an annular groove.

[0026] Specific implementation method four: Figure 1-11 As shown, this embodiment is a further explanation of the specific embodiment 1, the ball 3 includes a metal ball 31, a limit rod I 33, a slide rod 34, a spring 35, a clamping plate 37 and two limit rods II 38; the metal ball 31 is provided with a circular hole 32 which is coaxial with the metal ball 31 and passes through the metal ball 31 for inserting the wire 5, and the metal ball 31 is also provided with an oblique slide 36, which passes from the outer surface of the metal ball 31 into the interior of the metal ball 31 until it is connected with the circular hole 32; the slide rod 34 and the slide rod 35 are connected to each other. The slide 36 slides in cooperation, and a splint 37 is provided at the connection between the slide 36 and the circular hole 32. One end of the splint 37 is movably connected to the inner wall of the slide 36 through an axle rod, and a spring 35 is provided between the splint 37 and the slide rod 34; a limit rod I 33 and two limit rods II 38 are also fixedly connected to the outer surface of the metal ball 31; the slide rod 34 and the two limit rods II 38 are all in sliding cooperation with the arc-shaped limit groove III 24 and the arc-shaped limit groove I 13; the limit rod I 33 slides in cooperation with the limit slide groove 12 and the groove 17.

[0027] Specific implementation method five: Figure 1-11As shown, this embodiment is a further explanation of the specific embodiment 1, and the two limit rods II 38 are symmetrically arranged about the plane where the midpoint connection line of the circular hole 32, the limit rod I 33 and the sliding rod 34 is located.

[0028] Specific implementation method six: Figure 1-11 As shown, this embodiment is a further explanation of the specific embodiment one. The angle between the limit rod I 33, the slide rod 34 and the center of the metal ball 31 is 90°, and when the wire 5 is just inserted into the circular hole 32, the slide rod 34 is located above the circular hole 32, and the limit rod I 33 is located below the circular hole 32.

[0029] Specific implementation method seven: Figure 1-11 As shown, this embodiment is a further explanation of the specific embodiment one, and the positioning block 4 includes a positioning block body 41 and a slider 42; the lower end face of the positioning block body 41 is adapted to the inner wall of the cylindrical cavity, and the lower end face of the positioning block body 41 is also fixedly connected to a slider 42 that slides with the arc-shaped limit groove IV25 and the arc-shaped limit groove II14. The end face of the positioning block body 41 close to the metal ball 31 is adapted to the spherical surface of the metal ball 31, and a wire clamping groove 43 is provided along the extension direction of the cylindrical cavity.

[0030] Specific implementation eight: Figure 1-11 As shown, this embodiment provides a press-fitting method for a terminal press-fitting mechanism, the press-fitting method comprising the following steps:

[0031] Step 1: During installation, insert the wire 5 into the round hole 32;

[0032] Step 2: Rotate the metal ball 31 and then replace the top cover 2;

[0033] Step 3: When disassembling, turn the knob 15, then take out the top cover 2, and finally take out the positioning block 4 and the wire 5.

[0034] The working principle of the present invention is: when using the present device to install the wire, the wire 5 is passed through the wire slot 43 and inserted into the round hole 32, and then one hand holds the wire 5, and the other hand rotates the metal ball 31 with the limit rod II 38 as the axis. While the metal ball 31 rotates, it also drives the limit rod I 33 and the slide rod 34 to rotate together, and during the rotation process, the positioning block 4 is always controlled by the hand holding the wire 5 to be located at the lower end of the cylindrical cavity until the slide rod 34 moves to the top end of the metal ball 31. During the movement of the slide rod 34, after the slide rod 34 contacts the lower end surface of the top cover 2, the spring 35 is compressed, and then after the slide rod 34 moves to the highest point of the metal ball 31, the slide rod 34 pops out under the action of the spring 35, and when the slide rod 34 moves to the uppermost end of the metal ball 31, the limit rod I 33 moves to the metal ball 31 as shown in FIG. Figure 9The leftmost end of the direction shown, and the limit rod I 33 moves into the groove 17, and finally the top cover 2 is covered, so that the slide bar 34 is located in the arc-shaped limit groove III 24, and the top cover 2 presses the slide bar 34 downward through the metal plate 23. The spring 35 is in a compressed state, so that the top of the slide bar 34 is close to the lower end of the metal plate 23. The spring 35 also drives the splint 37 to rotate around the shaft through the elastic force, so that the splint 37 is close to the wire 5 and clamps the wire 5; in the process of the ball 3 rotating, the ball 3 bends the wire into the shape of the round hole 32 and the positioning block 4. Figure 9 In the state shown, the wire 5 has two bending positions, which prevents the wire 5 from being pulled out by external force during use and detaching from the metal ball 31. At the same time, since the limit rod I 33 is located in the groove 17, and the connecting rod 16 is connected to the housing 1 by a thread, the self-locking of the thread prevents the metal ball 31 from rotating about the connecting rod 16 as the axis. The sliding rod 34 is located in the arc-shaped limit groove III 24, preventing the metal ball 31 from rotating about the limit rod II 38 as the axis, thereby preventing the wire 5 from shaking back and forth.

[0035] Remove the top cover 2, then turn the knob 15 so that the knob 15 drives the connecting rod 16 through the groove 17 to drive the rectangular limit rod Ⅰ 33 to rotate with the connecting rod 16 as the axis, so that the wire 5 moves to the upper end of the metal ball 31. At this time, the slide bar 34 is located in the arc groove 18. Since the lowest point of the arc groove 18 is located below the arc limit groove Ⅰ 13, the spring 35 is stretched to its original length, so that the clamping plate 37 no longer applies pressure to the wire 5. Then, the positioning block 4 is taken out through the opening position of the cylindrical cavity, and the wire 5 can be taken out by pushing it upward, which is convenient for maintenance and repair. During the rotation of the knob 15, the limit rod Ⅰ 33 will never be separated from the groove 17. After the maintenance is completed, the disassembly steps are reversed to complete the installation again.

[0036] The slide bar 34 is made of metal, and the present invention is suitable for crimping a conductor 5 made of hard copper wire.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other configurations without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations coming within the meaning and range of equivalents of the claims are intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0038] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A terminal pressing mechanism, characterized in that: It comprises a shell (1), a top cover (2), a ball (3) and a positioning block (4); the top of the shell (1) is provided with a top cover (2), and the side of the rectangular block formed by the shell (1) and the top cover (2) is provided with a cylindrical cavity; the ball (3) is arranged in the cylindrical cavity, and the ball (3) is slidably engaged with the shell (1) and the top cover (2); the positioning block (4) is arranged at a position close to the opening of the cylindrical cavity, and the positioning block (4) is also slidably engaged with the shell (1) and the top cover (2); The ball (3) includes a metal ball (31), a limit rod I (33), a slide rod (34), a spring (35), a clamp (37) and two limit rods II (38); the metal ball (31) is provided with a circular hole (32) which is coaxial with the metal ball (31) and passes through the metal ball (31) for inserting the wire (5); the metal ball (31) is also provided with an oblique slideway (36), which penetrates the interior of the metal ball (31) from the outer surface of the metal ball (31) until it is connected with the circular hole (32); the slide rod (34) is in sliding cooperation with the slideway (36), and the slideway (3 6) A splint (37) is provided at the connection with the circular hole (32), one end of the splint (37) is movably connected to the inner wall of the slideway (36) through a shaft, and a spring (35) is provided between the splint (37) and the slide bar (34); a limit rod I (33) and two limit rods II (38) are also fixedly connected to the outer surface of the metal ball (31); the slide bar (34) and the two limit rods II (38) are all slidably matched with the arc-shaped limit groove III (24) and the arc-shaped limit groove I (13); the limit rod I (33) is slidably matched with the limit slideway (12) and the groove (17).

2. A terminal pressing mechanism according to claim 1, characterized in that: The housing (1) comprises a housing body (11), a knob (15) and a connecting rod (16); a threaded hole is provided on a side wall of the housing body (11); the connecting rod (16) is connected to the threaded hole by a thread, and one end of the connecting rod (16) disposed inside the housing body (11) is provided with a groove (17) penetrating the connecting rod (16) along the diameter direction of the connecting rod (16); and one end of the connecting rod (16) disposed outside the housing body (11) is fixedly connected to the knob (15); The bottom end of the inner wall of the shell body (11) is provided with a limiting groove (12) along the length direction of the shell body (11), and an arc-shaped limiting groove I (13) and an arc-shaped limiting groove II (14) with the connecting rod (16) as the axis are provided on the inner wall of the shell body (11); an arc-shaped groove (18) connected to the arc-shaped limiting groove I (13) is also provided on the inner bottom surface of the shell body (11), and the lowest point of the arc-shaped groove (18) is located below the arc-shaped limiting groove I (13).

3. A terminal pressing mechanism according to claim 2, characterized in that: The top cover (2) comprises a top cover body (21), an insert (22) and a metal plate (23); the bottom end of the top cover body (21) is fixedly connected with the insert (22), the upper end surface of the shell body (11) is provided with a slot, and the insert (22) is inserted into the slot; the top end of the top cover body (21) is also provided with a groove, the metal plate (23) is fixedly connected in the groove, and the lower end surface of the top cover body (21) is provided with an arc-shaped limit groove III (24) and an arc-shaped limit groove IV (25); when the insert (22) is located in the slot, the arc-shaped limit groove III (24) is connected with the arc-shaped limit groove I (13), and the arc-shaped limit groove IV (25) is connected with the arc-shaped limit groove II (14), and after being connected, they all form an annular groove.

4. A terminal pressing mechanism according to claim 3, characterized in that: The two limiting rods II (38) are symmetrically arranged about a plane where a line connecting the midpoints of the circular hole (32), the limiting rod I (33) and the sliding rod (34) is located.

5. The terminal pressing mechanism according to claim 3, characterized in that: The angle between the line connecting the limit rod I (33), the slide rod (34) and the center of the metal ball (31) is 90°, and when the wire (5) is just inserted into the circular hole (32), the slide rod (34) is located above the circular hole (32) and the limit rod I (33) is located below the circular hole (32).

6. A terminal pressing mechanism according to claim 4 or 5, characterized in that: The positioning block (4) includes a positioning block body (41) and a slider (42); the lower end surface of the positioning block body (41) is adapted to the inner wall of the cylindrical cavity, and the lower end surface of the positioning block body (41) is fixedly connected to a slider (42) that slides with the arc-shaped limiting groove IV (25) and the arc-shaped limiting groove II (14). The end surface of the positioning block body (41) close to the metal ball (31) is adapted to the spherical surface of the metal ball (31), and a wire clamping groove (43) is provided along the extension direction of the cylindrical cavity.

7. A method for pressing a terminal block according to claim 6, characterized in that: The press-fitting method comprises the following steps: Step 1: During installation, insert the wire (5) into the round hole (32); Step 2: Rotate the metal ball (31) and then replace the top cover (2); Step 3: When disassembling, turn the knob (15), then take out the top cover (2), and finally take out the positioning block (4) and the wire (5).

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