Measuring pen quick-insertion secondary terminal strip connecting tool

Abstract

A measuring pen quick-insertion secondary terminal strip connecting tool relates to a measuring pen connecting tool, and is characterized in that a frustum (16) extends into a through hole (23) along the upper end of an expansion head (6), the side wall of the frustum (16) is tightly connected with the side wall of a conical cavity (31), the upper end of the expansion head (6) is fixedly connected with the lower end of an insulating sleeve (4), an external expanding diameter (15) can slide in the through hole (23), the lower end of the frustum (16) is provided with an elastic telescopic contact, and the lower end of the conical cavity (31) is provided with an external expanding diameter (15). The lower end of the elastic telescopic contact extends out of an expansion head (6); according to the utility model, one end of the tool is sleeved on a pen point of a universal meter pen, and the other end of the tool is inserted into a screwdriver entering hole which is arranged on a secondary terminal strip and is used for pressing a terminal pressing plate, so that the elastic telescopic contact is contacted with a screw head; the expansion head with the expansion function can enable the secondary terminal block to be firmly connected with a screw hole and to be easily taken out, and the purpose that the secondary terminal block is rapidly measured by the measuring pen is achieved.

Description

Technical Field

[0001] The utility model relates to a measuring pen connecting tool, in particular to a measuring pen quick-insertion secondary terminal row connecting tool. Background Art

[0002] In the power control system of the petrochemical workshop, the secondary control elements can monitor, control, and protect the working conditions of the primary equipment, and provide the operating personnel with operating conditions or production command signals. The secondary terminal blocks are required for connecting various measuring instruments, high-voltage switch opening and closing coils, opening and closing position signals, ground knife signals, various contactors, intermediate relays, indicator lights and other electrical and off-screen devices. When a control circuit fails, it is necessary to use a multimeter in combination with the schematic diagram to measure and judge the secondary terminals. When the multimeter pen is fixedly connected to the corresponding secondary terminal, it is necessary to loosen the connected terminal pressure plate with a screwdriver each time, insert the multimeter pen into the terminal plug port, and then fix it with a screwdriver, which is extremely inconvenient to operate. Utility Model Content

[0003] In order to overcome the deficiencies in the background technology, the utility model discloses a measuring pen quick-insertion secondary terminal block connection tool. By putting one end of the utility model on the tip of the multimeter pen, the other end of the utility model is inserted into a screwdriver entry hole for tightening the terminal pressing plate provided in the secondary terminal block, so that the elastic telescopic contact and the screw head are in contact. The expansion head with an expansion function can make the utility model and the screw hole firmly connected and easy to take out, thereby achieving the purpose of the measuring pen quickly measuring the secondary terminal block.

[0004] In order to achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0005] A measuring pen quick-plug secondary terminal block connection tool comprises a connecting rod, an insulating sleeve and an expansion head, wherein a through hole B is provided in the insulating sleeve, an inner expansion diameter is provided at the lower end of the through hole B, an outer expansion diameter is provided at the lower end of the connecting rod, a frustum is provided at the lower end of the outer expansion diameter, the insulating sleeve is slidably sleeved on the lower part of the connecting rod, the outer expansion diameter is placed in the inner expansion diameter, an insulating handle is sleeved on the upper end of the connecting rod, a blind plug hole is provided on the end face of the upper end of the connecting rod, a through hole is provided in the expansion head, a conical cavity is provided at the lower end of the through hole, expansion seams with the lower end penetrating the bottom of the expansion head are arranged around and spaced on the side wall of the conical cavity, the frustum extends into the through hole along the upper end of the expansion head, the side wall of the frustum is in close contact with the side wall of the conical cavity, the upper end of the expansion head is fixedly connected to the lower end of the insulating sleeve, the outer expansion diameter can slide in the through hole, an elastic telescopic contact is provided at the lower end of the frustum, and the lower end of the elastic telescopic contact extends out of the expansion head.

[0006] The measuring pen quick-plug secondary terminal block connection tool, the elastic telescopic contact includes a contact head and a tube body, a blind hole is provided on the upper end face of the contact head, an outer flange is provided on the outer side wall of the upper end of the contact head, a tube cavity is provided in the tube body, an internal thread C is provided at the upper end of the tube cavity, an internal flange is provided at the lower end of the tube cavity, a screw is provided at the lower end of the cone, the lower end of the contact head passes through the tube cavity along the upper end of the tube cavity, the outer flange rests on the internal flange, the contact head can slide in the tube cavity, the screw and the internal thread C are screwed together, and a spring is provided between the bottom of the blind hole and the bottom of the screw.

[0007] The measuring pen quick-insert secondary terminal block connection tool is provided with a through hole A between two opposite bottom surfaces of the insulating handle, an internal thread A is provided at the lower end of the through hole A, and an external thread A is provided on the outer wall of the upper end of the connecting rod. The internal thread A and the external thread A are screwed together.

[0008] The measuring pen quick-insert secondary terminal block connection tool is provided with anti-skid corrugations on the outer wall of the lower end of the expansion head.

[0009] The measuring pen quick-insert secondary terminal block connection tool is provided with an internal thread B at the lower end of the inner expansion diameter, and an external thread B is provided on the outer wall of the upper end of the expansion head, and the external thread B and the internal thread B are screwed together.

[0010] The measuring pen quick-insert secondary terminal row connection tool is provided with an expansion hole at the upper end of each expansion joint.

[0011] The measuring pen quick-insertion secondary terminal block connection tool is provided with an annular groove in the perforation B, and a damping rubber ring is provided between the annular groove and the connecting rod.

[0012] The measuring pen quick-insert secondary terminal block connection tool is provided with an anti-slip ring groove on the outer wall of the insulating handle.

[0013] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0014] The measuring pen quick-insertion secondary terminal block connection tool disclosed in the present invention is configured by putting one end of the utility model on the tip of the multimeter pen, and inserting the other end of the utility model into a screwdriver entry hole for tightening the terminal pressure plate provided in the secondary terminal block, so that the elastic telescopic contact and the screw head are in contact, and the expansion head with an expansion function can make the utility model and the screw hole firmly connected and easy to remove, thereby achieving the purpose of the measuring pen quickly measuring the secondary terminal block; the utility model has the characteristics of simple structure, easy use, improved efficiency, safety and reliability, and solves the time-consuming and labor-intensive disadvantage of constantly turning the pressure plate screws during traditional measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the assembly structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the insulating handle of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the insulating sleeve of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the connecting rod of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the pipe body of the utility model;

[0021] Figure 7 It is the structural schematic diagram of the practical expansion head.

[0022] In the figure: 1. Insulated handle; 2. Anti-slip ring groove; 3. Connecting rod; 4. Insulating sleeve; 5. Expansion hole; 6. Expansion head; 7. Expansion joint; 8. Anti-slip corrugation; 9. Contact head; 10. Perforation A; 11. Damping rubber ring; 12. Perforation B; 13. Blind plug; 14. External thread A; 15. External expansion; 16. Cone; 17. Screw; 18. Spring; 19. Blind hole; 20. External flange; 21. Tube cavity; 22. Tube body; 23. Through hole; 24. External thread B; 25. Internal thread A; 26. Ring groove; 27. Internal expansion; 28. Internal thread B; 29. ​​Internal thread C; 30. Internal flange; 31. Conical cavity. DETAILED DESCRIPTION

[0023] The present invention can be explained in more detail through the following embodiments. The present invention is not limited to the following embodiments. The purpose of disclosing the present invention is to protect all changes and improvements within the scope of the present invention.

[0024] Combined with Figures 1 to 7The measuring pen quick-insert secondary terminal block connection tool described in the invention comprises a connecting rod 3, an insulating sleeve 4 and an expansion head 6, a through hole B12 is provided in the insulating sleeve 4, an inner diameter expansion 27 is provided at the lower end of the through hole B12, an outer diameter expansion 15 is provided at the lower end of the connecting rod 3, a frustum 16 is provided at the lower end of the outer diameter expansion 15, the insulating sleeve 4 is slidably sleeved on the lower part of the connecting rod 3, the outer diameter expansion 15 is placed in the inner diameter expansion 27, an annular groove 26 is provided in the through hole B12, a damping rubber ring 11 is provided between the annular groove 26 and the connecting rod 3, and an insulating handle 1 is sleeved on the upper end of the connecting rod 3 The outer wall of the insulating handle 1 is provided with an anti-slip ring groove 2, a through hole A10 is provided between the two opposite bottom surfaces of the insulating handle 1, an internal thread A25 is provided at the lower end of the through hole A10, an external thread A14 is provided on the outer wall of the upper end of the connecting rod 3, the internal thread A25 and the external thread A14 are screwed, a blind plug hole 13 is provided on the end face of the upper end of the connecting rod 3, a through hole 23 is provided in the expansion head 6, a tapered cavity 31 is provided at the lower end of the through hole 23, and expansion joints 7 whose lower ends pass through the bottom of the expansion head 6 are arranged around and spaced on the side wall of the tapered cavity 31, and each expansion joint 7 is provided at the upper end Expansion hole 5, cone 16 extends into through hole 23 along the upper end of expansion head 6, the side wall of cone 16 and the side wall of conical cavity 31 are in close contact, an internal thread B28 is provided at the lower end of inner expansion 27, an external thread B24 is provided on the outer wall of the upper end of expansion head 6, the external thread B24 and the internal thread B28 are screwed, the outer expansion 15 can slide in the through hole 23, an anti-slip corrugation 8 is provided on the outer wall of the lower end of expansion head 6, an elastic telescopic contact is provided at the lower end of cone 16, the lower end of the elastic telescopic contact extends out of expansion head 6, the elastic telescopic contact includes contact head 9 and tube body 22, A blind hole 19 is provided on the upper end face of the contact head 9, an outer flange 20 is provided on the outer side wall of the upper end of the contact head 9, a lumen 21 is provided in the tube body 22, an internal thread C29 is provided at the upper end of the lumen 21, an internal flange 30 is provided at the lower end of the lumen 21, a screw 17 is provided at the lower end of the cone 16, the lower end of the contact head 9 passes through the lumen 21 along the upper end of the lumen 21, the outer flange 20 rests on the internal flange 30, the contact head 9 can slide in the lumen 21, the screw 17 is threadedly connected to the internal thread C29, and a spring 18 is provided between the bottom of the blind hole 19 and the bottom of the screw 17.

[0025] When using the measuring pen quick-insertion secondary terminal block connection tool described in the utility model, first insert the tip of the multimeter pen into the blind plug hole 13. When measuring the secondary terminal block, the user holds the insulating handle 1 to insert the expansion head 6 into the screwdriver entry hole provided in the secondary terminal to be measured. After the expansion head 6 is applied to the screwdriver entry hole, the lower end of the contact head 9 is in contact with the screw provided in the screwdriver entry hole. The setting of the spring 18 enables the contact head 9 to maintain contact with the screw under the elastic force of the spring. The user then continues to apply force to make the cone 16 press the conical cavity 31, causing the side wall of the conical cavity 31 to expand, and the expanded side wall of the conical cavity 31 is tightly attached to the screwdriver entry hole. The expansion head 6 is stuck on the inner wall of the entry hole, and the anti-slip corrugation 8 can prevent the expansion head 6 from being easily dislodged. When the cone 16 moves, the connecting rod 3 also slides in the insulating sleeve 4. The damping rubber ring 11 increases the stability of the expansion head 6 from being easily dislodged from the screwdriver entry hole. When the secondary terminal needs to be dislodged from the screwdriver entry hole after measuring the secondary terminal, the user pulls the insulating handle 1 with force, and the pulling force breaks through the friction of the damping rubber ring 11, causing the connecting rod 3 to slide in the insulating sleeve 4, and the cone 16 no longer compresses the conical cavity 31, and the side wall of the conical cavity 31 no longer expands, thereby causing the utility model to be dislodged from the screwdriver entry hole.

[0026] The parts not described in detail in this utility model are prior art.

Claims

1. A measuring pen quick-insert secondary terminal block connection tool, characterized by: The invention comprises a connecting rod (3), an insulating sleeve (4) and an expansion head (6), wherein a through hole B (12) is provided in the insulating sleeve (4), an inner diameter expansion (27) is provided at the lower end of the through hole B (12), an outer diameter expansion (15) is provided at the lower end of the connecting rod (3), a frustum (16) is provided at the lower end of the outer diameter expansion (15), the insulating sleeve (4) is slidably sleeved on the lower part of the connecting rod (3), the outer diameter expansion (15) is placed in the inner diameter expansion (27), an insulating handle (1) is sleeved on the upper end of the connecting rod (3), a blind plug hole (13) is provided on the end surface of the upper end of the connecting rod (3), and a A through hole (23) is provided, a conical cavity (31) is provided at the lower end of the through hole (23), expansion joints (7) are provided on the side wall of the conical cavity (31) at intervals, and the lower end of the expansion joint (6) passes through the bottom of the expansion head (6). A frustum (16) extends into the through hole (23) along the upper end of the expansion head (6), the side wall of the frustum (16) and the side wall of the conical cavity (31) are in close contact, the upper end of the expansion head (6) and the lower end of the insulating sleeve (4) are fixedly connected, the outer expansion diameter (15) can slide in the through hole (23), and an elastic telescopic contact is provided at the lower end of the frustum (16), and the lower end of the elastic telescopic contact extends out of the expansion head (6).

2. The measuring pen quick-insert secondary terminal block connection tool according to claim 1 is characterized in that: The elastic telescopic contact comprises a contact head (9) and a tube body (22). A blind hole (19) is provided on the upper end surface of the contact head (9). An outer flange (20) is provided on the outer side wall of the upper end of the contact head (9). A tube cavity (21) is provided in the tube body (22). An internal thread C (29) is provided at the upper end of the tube cavity (21). An inner flange (30) is provided at the lower end of the tube cavity (21). A screw rod (17) is provided at the lower end of a cone (16). The lower end of the contact head (9) passes through the tube cavity (21) along the upper end of the tube cavity (21). The outer flange (20) rests on the inner flange (30). The contact head (9) can slide in the tube cavity (21). The screw rod (17) and the internal thread C (29) are screwed together. A spring (18) is provided between the bottom of the blind hole (19) and the bottom of the screw rod (17).

3. The measuring pen quick-insert secondary terminal block connection tool according to claim 1 is characterized in that: A through hole A (10) is provided between two opposite bottom surfaces of the insulating handle (1), an internal thread A (25) is provided at the lower end of the through hole A (10), an external thread A (14) is provided on the outer wall of the upper end of the connecting rod (3), and the internal thread A (25) and the external thread A (14) are screwed together.

4. The measuring pen quick-insert secondary terminal block connection tool according to claim 1 is characterized in that: An anti-slip corrugation (8) is provided on the outer wall of the lower end of the expansion head (6).

5. The measuring pen quick-insert secondary terminal block connection tool according to claim 1 is characterized in that: An internal thread B (28) is provided at the lower end of the inner expansion (27), and an external thread B (24) is provided on the outer wall of the upper end of the expansion head (6). The external thread B (24) and the internal thread B (28) are screwed together.

6. The measuring pen quick-insert secondary terminal block connection tool according to claim 1 is characterized in that: An expansion hole (5) is provided at the upper end of each expansion joint (7).

7. The measuring pen quick-insert secondary terminal block connection tool according to claim 1 is characterized in that: An annular groove (26) is provided in the through hole B (12), and a damping rubber ring (11) is provided between the annular groove (26) and the connecting rod (3).

8. The measuring pen quick-insert secondary terminal block connection tool according to claim 1 is characterized in that: An anti-slip ring groove (2) is provided on the outer wall of the insulating handle (1).

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