CN212020614U

CN212020614U - Special pliers is changed to protective tube

Info

Publication number: CN212020614U
Application number: CN202020749925.7U
Authority: CN
Inventors: 王建涛; 冉峰
Original assignee: LUOYANG SANLONG INSTALLATION AND MAINTENANCE CO LTD
Current assignee: LUOYANG SANLONG INSTALLATION AND MAINTENANCE CO LTD
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2020-11-27
Anticipated expiration: 2030-05-09

Abstract

A pair of special pliers for replacing a fuse tube relates to a pair of pliers, wherein two S-shaped rods (9) are oppositely arranged, the middle parts of the S-shaped rods are hinged and connected to form a pliers body, the end parts of two connecting rods (7) respectively penetrate through two through holes along the opposite surfaces of two pliers head blocks (4) and then are limited by two end caps (5), springs A (6) are respectively sleeved on the connecting rods (7) between the two supporting blocks (8) and the two pliers head blocks (4), two arc plates (1) extending upwards are respectively and oppositely arranged on the two supporting blocks (8), coaxial insertion rods (12) are respectively arranged on the opposite surfaces of the two pliers tail blocks (13), and two ends of a spring B (11) are respectively sleeved on the two insertion rods (12); the utility model discloses a set up the supporting shoe through connecting rod sliding connection respectively on two binding clip pieces of the pincers body to set up the arc board respectively in the upper end of two supporting shoes, thereby played and utilized two spring A to play the effectual protective tube who has protected glass, ceramic material and not receive the purpose that harms.

Description

Special pliers is changed to protective tube

Technical Field

The utility model relates to a pliers especially relates to a special pliers is changed to protective tube.

Background

In a power supply loop of an electronic instrument and a signal loop of an instrument control system, a large number of protective tubes are used, and the protective tubes can be used for quickly fusing and cutting off the power supply of the loop after the power supply loop is overloaded, so that the safety of equipment is ensured. The fuse tubes used in electronic instruments and instrument control systems are usually glass or ceramic fuse tubes, which are small in size (e.g. commonly known as 5 mm + 20 mm) and fragile, some fuse tubes are clamped in the terminal row, some fuse tubes are clamped in the related metal hoop sheets, and the fuse tubes are firmly fixed, and when the fuse tubes are fused, the fuse tubes need to be replaced. When the fuse is replaced, the fuse tube is pried off by the end part of a straight screwdriver and then installed by bare hands, but the method has potential safety hazards: 1. when the safety tube is pried, the safety tube is easy to break and fall into an instrument circuit board, and personnel are easy to be injured; 2. because the signal circuit fuses on the 16-channel or 32-channel DI and DO terminal boards adopted by part of control systems are densely arranged and the system is running, when a single circuit fuse tube is dismounted, no special tool is used, and conventional tools such as a screwdriver and the like are adopted to easily miss touch metal parts of other circuits to cause short circuit, so that the fluctuation of the used circuits and even the power supply of a superior level are tripped off; 3. the installation of a protective tube on a part of a circuit board or an electronic component which is electrified by bare hands is easy to cause electric shock of people.

Disclosure of Invention

In order to overcome not enough among the background art, the utility model discloses a special pliers is changed to protective tube through set up the supporting shoe through connecting rod sliding connection respectively on two binding clip pieces of the pincers body to set up the arc board respectively in the upper end of two supporting shoes, thereby played and utilized two spring A to play the effectual protective tube of having protected glass, ceramic material and not receive the purpose that harms.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a special pliers is changed to protective tube, including supporting shoe and "S" shape pole, be equipped with the tong head piece in the upper end of "S" shape pole, be equipped with the tong tail piece at the lower extreme of "S" shape pole, two "S" shape poles set up relatively and the middle part articulates the connection and forms the pincers body, be equipped with coaxial perforation respectively on two tong head pieces, the supporting shoe is two, be equipped with the connecting rod respectively on two supporting shoes, the tip of two connecting rods passes two perforation after passing two opposite faces of two tong head pieces respectively and is restricted by both ends cap, two connecting rods and two perforation are sliding connection respectively, it has spring A to overlap respectively on the connecting rod between two supporting shoes and two tong head pieces, be equipped with the arc board that upwards extends respectively relatively on two supporting shoes, be equipped with coaxial inserted bar respectively on the opposite face of two tong tail pieces, the both ends of spring B overlap respectively on two inserted bars.

The special pliers for replacing the fuse tube are respectively provided with connecting plates between the two supporting blocks and the two arc plates.

The inner arc surfaces of the two arc plates are respectively covered with a rubber layer.

The special pliers for replacing the safety tube are characterized in that the middle parts of the two S-shaped rods are hinged and connected through a pin shaft to form a pliers body.

The special pliers for replacing the safety tube are characterized in that the two connecting rods and the two through holes are respectively in corresponding polygons.

The special pliers are replaced by the safety tube, and the distance between the two inserted rods is larger than the distance between the two support blocks.

Since the technical scheme is used, the utility model discloses following beneficial effect has:

the special pliers for replacing the protective tube of the utility model has the advantages that the supporting blocks which are connected in a sliding way through the connecting rods are respectively arranged on the two pliers head blocks of the pliers body, and the arc plates are respectively arranged at the upper ends of the two supporting blocks, so that the purpose of utilizing the two springs A to play a buffering role and effectively protecting the protective tube made of glass and ceramic materials from being damaged is achieved; the utility model discloses simple structure, convenient and practical, safety ring protect are fit for promoting on a large scale.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. an arc plate; 2. a rubber layer; 3. a connecting plate; 4. a tong head block; 5. an end cap; 6. a spring A; 7. a connecting rod; 8. a support block; 9. an "S" shaped rod; 10. a pin shaft; 11. a spring B; 12. inserting a rod; 13. and (4) clamping a tail block.

Detailed Description

The present invention will be explained in more detail by the following examples, which are not intended to limit the invention, and the purpose of disclosing the invention is to protect all the changes and improvements that come within the scope of the invention;

the special pliers for replacing the fuse tube, which is described by combining with the attached figure 1, comprises a supporting block 8 and an S-shaped rod 9, wherein the upper end of the S-shaped rod 9 is provided with a plier head block 4, the lower end of the S-shaped rod 9 is provided with a plier tail block 13, the middle parts of the two S-shaped rods 9 are hinged and connected through a pin shaft 10 to form a plier body, the two plier head blocks 4 are respectively provided with a coaxial through hole, the two supporting blocks 8 are respectively provided with two connecting rods 7, the end parts of the two connecting rods 7 respectively penetrate through the two through holes along the opposite surfaces of the two plier head blocks 4 and are limited by two end caps 5, the two connecting rods 7 and the two through holes are respectively in sliding connection, the two connecting rods 7 and the two through holes are respectively in corresponding polygons, the connecting rods 7 between the two supporting blocks 8 and the two plier head blocks 4 are respectively sleeved with springs A6, the two supporting blocks 8 are respectively and are respectively provided with arc plates 1 which extend upwards, the inner arc surfaces, the connecting plates 3 are respectively arranged between the two supporting blocks 8 and the two arc plates 1, the opposite surfaces of the two tong tail blocks 13 are respectively provided with coaxial inserted bars 12, two ends of a spring B11 are respectively sleeved on the two inserted bars 12, and the distance between the two inserted bars 12 is larger than that between the two supporting blocks 8.

Implement special pliers is changed to protective tube, when not using, the upper end and the lower extreme of the pincers body are the state of opening under spring B11's support, the operator holds the lower part of the pincers body, be located the both sides of the protective tube that need change with two arc boards 1, the lower part of the pincers body is held tightly gradually with the hand, two arc boards 1 begin to tighten up to the centre, and begin to embrace the protective tube that needs to be changed, treat that the inner wall of two arc boards 1 and the protective tube that needs to be changed hug closely the time, the operator again lasts hard, two connecting rods 7 begin to slide in two perforation, and give the buffering by two spring A6 with the power of using and fall, so even the operator is too hard when carelessly operating, also can not superpose the protective tube that needs to be changed with too big strength gas, so with regard to effectual protection glass, the protective tube of ceramic material is not harmed.

The part of the utility model not detailed is prior art.

Claims

1. The utility model provides a special pliers is changed to protective tube which characterized by: comprises supporting blocks (8) and S-shaped rods (9), wherein the upper ends of the S-shaped rods (9) are provided with tong head blocks (4), the lower ends of the S-shaped rods (9) are provided with tong tail blocks (13), the two S-shaped rods (9) are oppositely arranged, the middle parts of the S-shaped rods are hinged and connected to form a tong body, the two tong head blocks (4) are respectively provided with coaxial through holes, the two supporting blocks (8) are respectively provided with connecting rods (7), the end parts of the two connecting rods (7) respectively penetrate through the two through holes along the opposite surfaces of the two tong head blocks (4) and are limited by two end caps (5), the two connecting rods (7) and the two through holes are respectively in sliding connection, the connecting rods (7) between the two supporting blocks (8) and the two tong head blocks (4) are respectively provided with springs A (6), the two supporting blocks (8) are respectively and oppositely sleeved with arc plates (1) extending upwards, the opposite surfaces of the two tong tail blocks (13) are respectively provided with coaxial plug-in a way, two ends of the spring B (11) are respectively sleeved on the two inserted rods (12).

2. The pair of special pliers for replacing a fuse according to claim 1, wherein: connecting plates (3) are respectively arranged between the two supporting blocks (8) and the two arc plates (1).

3. The pair of special pliers for replacing a fuse according to claim 1, wherein: the inner arc surfaces of the two arc plates (1) are respectively covered with a rubber layer (2).

4. The pair of special pliers for replacing a fuse according to claim 1, wherein: the middle parts of the two S-shaped rods (9) are hinged and connected through a pin shaft (10) to form a clamp body.

5. The pair of special pliers for replacing a fuse according to claim 1, wherein: the two connecting rods (7) and the two through holes are respectively corresponding polygons.

6. The pair of special pliers for replacing a fuse according to claim 1, wherein: the distance between the two inserted rods (12) is larger than the distance between the two supporting blocks (8).