Wiring terminal sleeve

Abstract

The utility model provides a wiring terminal sleeve which comprises a terminal sleeve body, a through hole is arranged on the terminal sleeve body, a fixing nail is movably arranged in the through hole, a protruding part is arranged on the terminal sleeve body, and the through hole and the protruding part are arranged oppositely. According to the utility model, the cable can be prevented from sliding in the terminal sleeve, and the wiring reliability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of terminal sleeves, in particular to a wiring terminal sleeve. Background Art

[0002] Existing crimp-type electricity meter terminal sleeve designs mainly include the following forms: the bottom of the terminal sleeve is flat or has anti-slip grooves, but the flat surface or anti-slip grooves cause low friction between the cable and the terminal sleeve. When the torque of the terminal block screw is relatively small (less than 1N.M), it is still easy for the connection to be loose when connecting the aluminum wire, resulting in excessive temperature rise, thereby posing a risk of burning the meter.

[0003] Utility model publication number CN209497007U discloses a non-slip terminal block housing comprising a terminal block housing, two threaded through holes at the top of the housing, each containing a screw, and an L-shaped support plate at the bottom of the housing, each containing a plurality of V-shaped grooves. However, these non-slip terminal blocks are prone to insecure wiring, which can lead to burnout. Utility Model Content

[0004] The purpose of the present invention is to provide a wiring terminal sleeve to solve the defects in the prior art, thereby preventing the cable from sliding in the terminal sleeve and improving the wiring reliability.

[0005] To achieve the above purpose, the utility model provides a terminal sleeve, including a terminal sleeve body, a through hole is provided on the terminal sleeve body, a fixing nail is movably provided in the through hole, a protrusion is provided on the terminal sleeve body, and the through hole and the protrusion are arranged opposite to each other.

[0006] The through hole and the protrusion are relatively arranged on the terminal sleeve body. The terminal sleeve body is inserted into the copper bar connected to the electric meter. There is a fixing nail at the upper end of the terminal sleeve body. The cable is inserted into the middle of the terminal sleeve body. The cable is located at the lower end of the copper bar. When the fixing nail moves toward the protrusion, because the aluminum wire is relatively soft, even if the torque of the fixing nail is relatively small, the protrusion will squeeze the cable and press the connection between the cable and the protrusion into a dent. When the cable is pulled by force, this place is equivalent to a resistance point, preventing the cable from being pulled out of the terminal sleeve body, or requiring greater force to pull the cable out. The wiring is firm, preventing the aluminum wire from being pulled out under a slight force, and also preventing the meter from burning due to an unreliable connection.

[0007] Optionally, the through hole is connected to the fixing pin via a thread to enable the fixing pin to move in the through hole.

[0008] Optionally, a protrusion is provided on the bottom plate of the terminal sleeve body, and the bottom plate is a straight plate or an L-shaped plate.

[0009] Optionally, an anti-skid pad is provided at the bottom of the fixing nail to prevent the copper bar from sliding, so that the connection between the terminal sleeve body and the copper bar is more secure.

[0010] Optionally, the protrusion is perpendicular to the cable placed in the terminal sleeve to increase the friction between the bottom plate and the cable.

[0011] Optionally, the top of the fixing nail is provided with a straight groove, a cross groove or a composite groove to facilitate tightening the fixing nail.

[0012] Beneficial effects:

[0013] The utility model provides a protrusion on the terminal sleeve body relative to the through hole. When the fixing nail moves toward the protrusion, because the aluminum wire is relatively soft, even if the torsional force of the fixing nail is relatively small, the protrusion provided on the bottom plate will squeeze the cable, pressing the connection between the cable and the protrusion into a dent. When the cable is pulled by force, this point acts as a resistance point, preventing the cable from being pulled out of the terminal sleeve body, or requiring greater force to pull the cable out. The connection is firm, preventing the aluminum wire from being pulled out by a slight force, and also preventing the meter from burning due to an unreliable connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the implementation methods or the description of the prior art. Obviously, the drawings described below are only some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0015] Figure 1 This is a structural diagram of the terminal block cover disclosed in the present utility model;

[0016] Figure 2 This is a cross-sectional view of the terminal block sleeve disclosed in the present utility model;

[0017] Figure 3 This is a structural diagram of the terminal sleeve body in the wiring terminal sleeve disclosed in the present utility model;

[0018] Figure 4 This is a structural diagram of another terminal sleeve body in the terminal sleeve disclosed in the present utility model;

[0019] Figure 5 The utility model is a cross-sectional view of the terminal sleeve body in the wiring terminal sleeve disclosed in the present invention.

[0020] Reference numerals: 1 terminal sleeve body; 2 bottom plate; 3 protrusion; 4 through hole; 5 fixing nail; 6 copper bar; 7 cable.

[0021] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0024] In the description of the present invention, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0025] See also Figure 1-4 According to an embodiment of the present invention, a terminal sleeve includes a terminal sleeve body 1, a through hole 4 is provided on the terminal sleeve body 1, a fixing nail 5 is movably provided in the through hole 4, a protrusion 3 is provided on the terminal sleeve body 1, and the through hole 4 is arranged opposite to the protrusion 3.

[0026] In this embodiment, the through hole 4 and the protrusion 3 are relatively arranged on the terminal sleeve body 1, and the terminal sleeve body 1 is inserted into the copper bar 6 connected to the electric meter. A fixing nail 5 is provided at the upper end of the terminal sleeve body 1. The cable 7 is inserted into the middle of the terminal sleeve body 1, and the cable 7 is located at the lower end of the copper bar. When the fixing nail 5 moves toward the protrusion 3, because the aluminum wire is relatively soft, even if the torque of the fixing nail 5 is relatively small, the protrusion 3 will squeeze the cable 7, and press the connection between the cable 7 and the protrusion 3 into a dent. When the cable 7 is pulled by force, this place is equivalent to a resistance point, preventing the cable 7 from being pulled out of the terminal sleeve body 1, or requiring greater force to pull the cable 7 out. The connection is firm, preventing the aluminum wire from being pulled out by a slight force, and also preventing the meter from burning due to an unreliable connection.

[0027] The through holes 4 are symmetrically distributed on the top plate of the terminal sleeve body 1 and have the same size. The protrusions 3 can be convex points, convex ribs or irregular convex strips.

[0028] See also Figure 1 and 2 In some embodiments of the present invention, the through hole 4 is connected to the fixing nail 5 by a thread to enable the fixing nail 5 to move in the through hole 4.

[0029] See also Figure 3 and 4 In some embodiments of the present invention, a protrusion 3 is provided on the bottom plate 2 of the terminal sleeve body 1, and the bottom plate 2 is a straight plate or an L-shaped plate.

[0030] The terminal sleeve body 1 includes a terminal sleeve with a baffle and a terminal sleeve without a baffle. The terminal sleeve with a baffle is shown in FIG. Figure 3 , the bottom plate 2 is an L-shaped plate; without baffle terminal cover, see Figure 4 , its bottom plate 2 is a straight plate. However, the shape of the bottom plate 2 includes but is not limited to a straight plate or an L-shaped plate, and its shape can also be adjusted according to demand.

[0031] See also Figure 2 In some embodiments of the present invention, a non-slip pad is provided at the bottom of the fixing nail 5 to prevent the copper bar 6 from sliding, making the connection between the terminal sleeve body 1 and the copper bar 6 more secure.

[0032] See also Figure 2 In some embodiments of the present invention, the protrusion 3 is perpendicular to the cable 7 placed in the terminal sleeve to increase the friction between the bottom plate 2 and the cable 7, further preventing the cable 7 from falling out of the terminal sleeve body 1.

[0033] See also Figure 1 In some embodiments of the present invention, a slot, a cross slot or a composite slot is provided on the top of the fixing nail 5 to facilitate tightening of the fixing nail 5 .

[0034] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the practical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A terminal block sleeve, characterized in that: The terminal sleeve body (1) comprises a terminal sleeve body (1), a through hole (4) is provided on the terminal sleeve body (1), a fixing nail (5) is movably provided in the through hole (4), a protrusion (3) is provided on the terminal sleeve body (1), and the through hole (4) and the protrusion (3) are arranged opposite to each other.

2. The terminal sleeve according to claim 1, wherein: The through hole (4) is connected to the fixing nail (5) via threads.

3. The terminal sleeve according to claim 1, wherein: A protrusion (3) is provided on the bottom plate (2) of the terminal sleeve body (1), and the bottom plate (2) is a straight plate or an L-shaped plate.

4. The terminal sleeve according to claim 1, wherein: An anti-slip pad is provided at the bottom of the fixing nail (5).

5. The terminal sleeve according to claim 1, wherein: The protrusion (3) is perpendicular to the cable (7) placed in the terminal sleeve.

6. The terminal sleeve according to claim 1, wherein: The top of the fixing nail (5) is provided with a straight groove, a cross groove or a composite groove.

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