Anti-loosening terminal special for transformer

Abstract

The utility model aims to provide an anti-loosening terminal special for a transformer, which comprises a first wiring guide sheet and a conducting piece which is arranged on the first wiring guide sheet and can conduct electricity, a wiring assembly is elastically arranged on the conducting piece, the wiring assembly comprises a second wiring guide sheet, and the second wiring guide sheet is arranged on the conducting piece. When the wiring assembly is installed on the conduction piece, the second wiring guide piece can be driven to make elastic movement, a wire fixing assembly is movably arranged on the second wiring guide piece, a wiring head can be fixed in the wire fixing assembly and makes contact with the second wiring guide piece, and when the wire fixing assembly is loosened, the second wiring guide piece can bounce to press the wiring head tightly, so that the wiring head is fixed. The beneficial effects are that through cooperative use of the second wiring guide sheet, the clamping member, the spring and other structures, when the bolt is loosened, the clamping member is pushed by the elastic force of the spring to pull the second wiring guide sheet upwards, so that the second wiring guide sheet pushes the connector lug upwards, and the connector lug is pressed against the bolt; loosening between the connector lug and the second wiring guide sheet is prevented, and normal operation of the transformer is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of connection terminals, and in particular relates to a special terminal for transformers which is anti-loosening. Background Art

[0002] Transformer terminal blocks are used to connect transformers to external wires or cables. Their function is to achieve electrical connection, ensure safe and stable transmission of electrical energy, and enable transformers to be effectively connected to power supplies and load devices. Existing transformer-specific terminal blocks (such as the ones in the attached manual) Figure 6 When wiring, the connection head is usually inserted into the terminal block to contact the terminal guide, and then the bolts on the terminal block are tightened to compress the connection head. However, over time, the bolts on the terminal block will loosen and move upward, which will cause the connection head and the terminal guide to loosen and cause poor contact. Utility Model Content

[0003] To achieve the above-mentioned purpose, the specific technical solution of the present invention is: a special terminal for transformers that is anti-loosening, comprising a first wiring guide and a conductive member that can conduct electricity and is attached to the first wiring guide, the conductive member can be elastically provided with a wiring assembly, the wiring assembly includes a second wiring guide, and when the wiring assembly is installed on the conductive member, it can drive the second wiring guide to perform elastic movement, and a fixed wire assembly can be movably provided on the second wiring guide, and the wiring head can be fixed in the fixed wire assembly and contact with the second wiring guide. When the fixed wire assembly is loose, the second wiring guide will bounce up and press the wiring head, and the wiring head will always be pressed to ensure that the second wiring guide and the wiring head are always energized.

[0004] According to the above technical solution, the wiring assembly further includes a clamping piece, the second wiring guide is arranged on the clamping piece, a spring is arranged in the clamping piece, the clamping piece can be arranged on the conductive piece, the spring is in contact with the conductive piece, and the clamping piece can move elastically along the conductive piece under the elastic force of the spring, so that the second wiring guide has an elastic force that is always upward.

[0005] According to the above technical solution, the wire fixing assembly further includes a terminal block, which is movably arranged on the second terminal guide, and a terminal cavity for inserting the second terminal and the connecting wire is provided on the terminal block. A bolt that can tighten the connecting wire is threadedly connected in the terminal block. When the connecting wire is inserted into the terminal cavity, it falls between the second terminal and the bolt, and the bolt can be twisted to tighten the connecting wire onto the second terminal.

[0006] According to the above technical solution, further, a through groove is provided on the second wiring guide, a fixing protrusion is provided in the through groove, a positioning groove for the fixing protrusion to pass through is provided on the clamping piece, a transverse groove is provided in the positioning groove, a fixing groove that can cooperate with the fixing protrusion is provided in the transverse groove, and a limiting protrusion that can limit the fixing protrusion is provided in the fixing groove. The clamping piece can be inserted into the through groove by aligning the positioning groove with the fixing protrusion, and then the clamping piece is twisted to make the fixing protrusion slide through the transverse groove and enter the fixing groove, thereby realizing the assembly between the clamping piece and the second wiring guide.

[0007] According to the above technical solution, the clamping piece is further provided with a knob, and the knob is provided with anti-slip grooves, and the anti-slip grooves can increase the friction between the finger and the knob when twisting the knob.

[0008] According to the above technical solution, further, the first wiring guide is provided with a first wiring terminal that is convenient for connecting with a wire or a terminal.

[0009] According to the above technical solution, further, a second wiring terminal that can contact the connecting wire is provided on the second wiring guide. When the wiring terminal is installed in the wiring cavity, the bolt will press the wiring terminal and the second wiring terminal, and the second wiring terminal will contact the bottom of the wiring cavity.

[0010] According to the above technical solution, further, when the second wiring terminal is pressed against the bottom of the wiring cavity by the bolt, the phase spring is in a force storage state.

[0011] The specific principle of anti-loosening:

[0012] After the terminal head is inserted into the terminal cavity, twist the bolt to press the terminal head against the upper surface of the second terminal head, and then the connecting wire head can be fixed. As the bolt loosens and moves upward with long-term use, the spring will push the clamp upward, causing the clamp to pull the second terminal guide upward, so that the second terminal head will press the connecting wire head upward and stick to the bolt.

[0013] Compared with the prior art, the beneficial effect of the present invention is that: by cooperating with the second wiring guide, the clamping piece and the spring and other structures, when the bolt is loosened, the elastic force of the spring pushes the clamping piece to pull the second wiring guide upward, so that the second wiring guide pushes the wiring head upward, so that the wiring head is pressed against the bolt, preventing the wiring head and the second wiring guide from loosening, thereby ensuring the normal operation of the transformer, and with the cooperation of the fixing protrusion, the positioning groove, the transverse groove and the fixing groove and other structures, the second wiring guide and the clamping piece can be quickly installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0015] Figure 1 This is a reference schematic diagram of the overall structural state of an embodiment of the present utility model.

[0016] Figure 2 This is a reference diagram of the state where the spring of the embodiment of the utility model is located on the conductive member and the clamping member.

[0017] Figure 3 This is a reference schematic diagram of the through-slot structure on the second wiring guide according to an embodiment of the present invention.

[0018] Figure 4 This is a reference schematic diagram of the detailed structural state of the wire fixing assembly of an embodiment of the present utility model.

[0019] Figure 5 This is a reference schematic diagram of the structural state of the clamping fixture according to an embodiment of the present invention.

[0020] Figure 6 This is a reference schematic diagram of the connection structure between the second wiring guide and the clamping member in the prior art.

[0021] Explanation of the marks in the figure: 1. First wiring guide; 2. Conducting part; 3. Wiring assembly; 4. Wire fixing assembly; 5. Second wiring guide; 6. Clamping part; 7. Knob; 8. Wiring seat; 9. Bolt; 10. Spring; 11. First wiring terminal; 12. Second wiring terminal; 13. Wiring cavity; 14. Through groove; 15. Fixing protrusion; 16. Positioning groove; 17. Horizontal groove; 18. Fixing groove; 19. Limiting protrusion; 20. Anti-slip groove. DETAILED DESCRIPTION

[0022] The embodiments of the present disclosure are described in detail below in conjunction with the accompanying drawings. The implementation methods of the present disclosure are explained below through specific examples. Those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification, which are further explained below in conjunction with the accompanying drawings.

[0023] See also Figure 1-6It can be seen that an embodiment of the present invention is a special terminal for transformers that is designed to prevent loosening, comprising a first wiring guide 1, on which a first wiring terminal 11 is provided for convenient connection with a wire or a terminal, in which a conductive member 2 capable of conducting electricity is installed, on which a wiring assembly 3 is elastically provided, and the wiring assembly 3 comprises a second wiring guide 5, on which a wire fixing assembly 4 is movably provided, by which the connecting wire and the second wiring guide 5 can be fixed and pressed, and under the elastic force of the wiring assembly 3, the second wiring guide 5 will be driven to press the connecting wire upward.

[0024] Furthermore, the wiring assembly 3 also includes a knob 7, in which a clamping member 6 is provided that can be assembled with the second wiring guide 5. A spring 10 is provided between the conductive member 2 and the clamping member 6. The spring 10 pushes the clamping member 6 upward under the elastic force, so that the clamping member 6 drives the second wiring guide 5 to press the connecting wire upward.

[0025] Furthermore, a through slot 14 is provided on the second wiring guide 5, a fixing protrusion 15 is provided in the through slot 14, a positioning slot 16 for the fixing protrusion 15 to pass through is provided on the clamping piece 6, a transverse slot 17 is provided in the positioning slot 16, a fixing slot 18 that can cooperate with the fixing protrusion 15 is provided in the transverse slot 17, and a limiting protrusion 19 that can limit the fixing protrusion 15 is provided in the fixing slot 18. The clamping piece 6 can be inserted into the through slot 14 through the positioning slot 16 and aligned with the fixing protrusion 15, and then the clamping piece 6 is twisted to make the fixing protrusion 15 slide through the transverse slot 17 and enter the fixing slot 18, thereby realizing the assembly between the clamping piece 6 and the second wiring guide 5.

[0026] It is worth mentioning that after the clamping member 6 is assembled on the second wiring guide 5 , the spring 10 will push the clamping member 6 to pull the second wiring guide 5 upwards. At this time, the fixing protrusion 15 will be stably stuck in the fixing groove 18 .

[0027] Furthermore, the knob 7 is provided with anti-slip grooves 20, which can increase the friction between the finger and the knob 7 when the knob 7 is twisted, thereby preventing the finger and the knob 7 from sliding.

[0028] Furthermore, the wire fixing assembly 4 includes a terminal block 8, which is movably arranged on the second terminal guide 5, and the second terminal guide 5 is provided with a second terminal 12 that can contact the connecting wire. The terminal block 8 is provided with a terminal cavity 13 for inserting the second terminal 12 and the connecting wire. The terminal block 8 is threaded with a bolt 9 that can press the connecting wire. When the connecting wire is inserted into the terminal cavity 13, it falls between the second terminal 12 and the bolt 9. The bolt 9 can be twisted to press the connecting wire onto the second terminal 12.

[0029] It is worth mentioning that when the bolt 9 presses the terminal head to be fixed on the second terminal head 12, in the initial state, the second terminal head 12 is located at the bottom of the terminal cavity 13, and the spring 10 is in a state of storing force at this time.

[0030] The specific principle of anti-loosening:

[0031] After the terminal head is inserted into the terminal cavity 13, the bolt 9 is twisted to press the terminal head tightly against the upper surface of the second terminal head 12, and then the terminal head of the connecting wire can be fixed. As the bolt 9 loosens and moves upward after long-term use, the spring 10 will push the clamping member 6 upward, causing the clamping member 6 to pull the second terminal guide 5 upward, so that the second terminal head 12 will press the terminal head of the connecting wire upward against the bolt 9.

[0032] In summary, the above is only a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited to this. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A transformer terminal for preventing loosening, comprising a first wiring guide (1) and a conductive member (2) attached to the first wiring guide (1) and capable of conducting electricity, characterized in that: The conductive member (2) is elastically provided with a wiring assembly (3), the wiring assembly (3) including a second wiring guide (5), and when the wiring assembly (3) is mounted on the conductive member (2), the second wiring guide (5) can be driven to perform elastic movement, and a fixed line assembly (4) is movably provided on the second wiring guide (5), and a wiring head can be fixed in the fixed line assembly (4) and contact with the second wiring guide (5), and when the fixed line assembly (4) is loosened, the second wiring guide (5) will spring up and press the wiring head.

2. The anti-loosening transformer terminal according to claim 1, characterized in that: The wiring assembly (3) further includes a clamping member (6), the second wiring guide (5) is arranged on the clamping member (6), a spring (10) is arranged in the clamping member (6), the clamping member (6) can be arranged on the conductive member (2), the spring (10) contacts the conductive member (2), and the clamping member (6) can perform elastic movement along the conductive member (2) under the elastic force of the spring (10), so that the second wiring guide (5) can always have an upward elastic force.

3. The anti-loosening transformer terminal according to claim 1, characterized in that: The wire fixing assembly (4) includes a terminal block (8), the terminal block (8) is movably arranged on the second terminal guide (5), and a terminal cavity (13) is provided on the terminal block (8) for inserting the second terminal (12) and the connecting wire. A bolt (9) for pressing the connecting wire is threadedly connected in the terminal block (8). When the connecting wire is inserted into the terminal cavity (13), it falls between the second terminal (12) and the bolt (9), and the bolt (9) can be twisted to press the connecting wire onto the second terminal (12).

4. The anti-loosening transformer terminal according to claim 2, characterized in that: The second wiring guide (5) is provided with a through slot (14), a fixing protrusion (15) is provided in the through slot (14), a positioning slot (16) for the fixing protrusion (15) to pass through is provided on the clamping member (6), a transverse slot (17) is provided in the positioning slot (16), a fixing slot (18) that can cooperate with the fixing protrusion (15) is provided in the transverse slot (17), and a limiting protrusion (19) that can limit the fixing protrusion (15) is provided in the fixing slot (18). The clamping member (6) can be inserted into the through slot (14) by aligning with the fixing protrusion (15) through the positioning slot (16), and then the clamping member (6) can be twisted to make the fixing protrusion (15) slide through the transverse slot (17) and enter the fixing slot (18), thereby realizing the assembly between the clamping member (6) and the second wiring guide (5).

5. The anti-loosening transformer terminal according to claim 2, characterized in that: The clamping member (6) is provided with a knob (7), and the knob (7) is provided with an anti-slip pattern (20). The anti-slip pattern (20) can increase the friction between the finger and the knob (7) when the knob (7) is twisted.

6. The anti-loosening transformer terminal according to claim 1, characterized in that: The first wiring guide (1) is provided with a first wiring terminal (11) for convenient connection with a wire or a terminal.

7. The anti-loosening transformer terminal according to claim 1, characterized in that: The second wiring guide (5) is provided with a second wiring terminal (12) that can contact the connecting wire. When the wiring terminal is installed in the wiring cavity (13), the bolt (9) presses the wiring terminal and the second wiring terminal (12), and the second wiring terminal (12) contacts the bottom of the wiring cavity (13).

8. The anti-loosening transformer terminal according to claim 7, characterized in that: When the second wiring terminal (12) is pressed against the bottom of the wiring cavity (13) by the bolt (9), the phase spring (10) is in a force storage state.

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