Operating rod special for fuse unit installation

Abstract

The utility model relates to the technical field of fuse cylinder installation, and discloses a special operating rod for fuse cylinder installation, which comprises an operating rod, a locking mechanism is arranged at the top of the operating rod, and the locking mechanism comprises a sliding sleeve, a supporting transverse plate, a connecting rod, a connecting rope and a locking arc plate. When the fuse circuit breaker is sleeved with the multiple locking arc plates, a user pushes the sliding sleeve, the multiple arc-shaped locking plates are not stretched outwards by the locking rods any more, the multiple compression springs drive the locking rods respectively, the locking arc plates are made to be attached to the outer portion of the fuse circuit breaker, and at the moment, the containing cylinder is arranged at the bottom of the fuse circuit breaker; according to the technical scheme of the utility model, the phenomenon that the fuse cylinder is not aligned with the bottom of the fuse circuit breaker due to the shaking of the operating rod in the process of lifting the operating rod by a user can be avoided, and when the plurality of locking arc plates are attached to the outside of the fuse circuit breaker, the user continues to lift the operating rod, and the fuse cylinder can be installed.

Description

Technical Field

[0001] The utility model relates to the technical field of fuse barrel installation, in particular to a special operating rod for fuse barrel installation. Background Art

[0002] The fuse tube is an important overcurrent protection component. When the current in the circuit exceeds the specified value, the fuse in the fuse tube will melt due to the thermal effect, thereby cutting off the circuit and protecting the power grid equipment from damage. A special operating lever is required when installing the fuse tube. The special operating lever for fuse tube installation is a tool specially designed for fuse tube installation. It is used to install, replace and maintain fuse tubes in high-voltage circuits.

[0003] In the application number "202020789421.8", the disclosed "A pre-opening device for the fuse cover of a high-voltage ring network cabinet" solves the problem of high-pressure metal vapor in the existing fuse barrel, which sprays outward and is easy to injure people. However, the application does not provide a locking mechanism that is convenient for users to lock the fuse circuit breaker. In practice, when installing the fuse barrel, some operating rods are fixed on the operating rod. When the operating rod is lifted, the fuse barrel has a certain weight and the force on the operating rod is uneven, which makes it easy for the fuse barrel to misalign with the bottom of the fuse circuit breaker, thereby reducing the efficiency of fuse barrel installation. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a special operating rod for installing a fuse tube, which solves the problem that the fuse tube has a certain weight and the force applied to the operating rod when it is lifted is uneven, which makes it easy for the fuse tube to be misaligned with the bottom of the fuse circuit breaker, thereby reducing the efficiency of fuse tube installation.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a special operating rod for installing a fuse tube, comprising an operating rod, a locking mechanism is arranged on the top of the operating rod, the locking mechanism comprises a sliding sleeve, a supporting cross plate, a connecting rod, a connecting rope and a locking arc plate, the side wall of the sliding sleeve is fixedly connected with three supporting cross plates, the top ends of the three supporting cross plates are rotatably connected with connecting rods, the top ends of the three connecting rods are fixedly connected with connecting ropes, one ends of the three connecting ropes are fixedly connected with locking rods, the bottom ends of the three locking rods are rotatably connected with supporting plates, the inner sides of the three locking rods are fixedly connected with compression springs, the top ends of the three locking rods are rotatably connected with locking arc plates, a placing cylinder is arranged on the top of the operating rod, and a fuse tube is arranged inside the placing cylinder;

[0006] A lifting mechanism is provided inside the operating rod, and the lifting mechanism includes an extended fixed rod, a sliding support, a screw rod and a rotating handle. The operating rod is rotatably connected to the screw rod inside, and the middle part of the screw rod is threadedly connected to the sliding support. The top end of the sliding support is fixedly connected to two extended fixed rods, and the inner wall of the placing cylinder is fixedly connected to two extrusion springs, and one end of the two extrusion springs is fixedly connected to a clamping plate.

[0007] Preferably, the sliding sleeve is slidably connected to the outside of the operating rod, and the inner walls of the three locking arc plates are fixedly connected with a plurality of balls.

[0008] Preferably, one end of the three support plates is fixedly connected to the outer wall of the placement tube, and one end of the three compression springs is fixedly connected to the outer wall of the placement tube.

[0009] Preferably, the middle fixing sleeve of the operating rod is provided with an anti-slip sleeve.

[0010] Preferably, two sides of the sliding support are respectively slidably connected to two sides of the inner wall of the operating rod.

[0011] Preferably, one end of the two extended fixing rods is fixedly connected to the bottom end of the placement tube.

[0012] Preferably, a rotating handle is provided at the bottom of the operating rod, and the top end of the rotating handle passes through the bottom end of the operating rod and is fixedly connected to one end of the screw rod.

[0013] Preferably, the inner walls of the two clamping plates are in contact with the outer wall of the fuse tube.

[0014] Beneficial Effects

[0015] The utility model provides a special operating rod for installing a fuse barrel. Compared with the prior art, it has the following beneficial effects:

[0016] The two clamping plates are respectively compressed by the two extrusion springs, and then the user places the fuse tube between the two clamping plates, and then the two extrusion springs respectively drive the two clamping plates to fix the fuse tube, and the user lifts the operating rod, and then slides the sliding sleeve down, and the sliding sleeve drives the plurality of connecting rods to descend, and the connecting rods respectively drive the connecting ropes to descend, and the plurality of connecting ropes drive the locking rods, so that the plurality of locking rods drive the plurality of locking arc plates away from the fuse tube, and the user lifts the operating rod, and when the plurality of locking arc plates are sleeved on the outside of the fuse circuit breaker, the user pushes the sliding sleeve, and when the plurality of arc-shaped locking plates are no longer stretched outward by the locking rod, the plurality of compression springs respectively drive the locking rods, so that the locking arc plates fit the outside of the fuse circuit breaker, and at this time, the placing tube is placed at the bottom of the fuse circuit breaker, which can prevent the user from aligning the fuse tube with the bottom of the fuse circuit breaker due to the shaking of the operating rod during the process of lifting the operating rod, and when the plurality of locking arc plates fit the outside of the fuse circuit breaker, the user continues to lift the operating rod to install the fuse tube.

[0017] 2. In the utility model, by providing a lifting mechanism, when the height of the operating rod is not enough, the user can rotate the rotating handle to make the rotating handle drive the screw rod to rotate, and the rotating screw rod drives the sliding support to slide inside the operating rod, the sliding support rises, and the sliding support drives the two extended fixing rods to rise. The two extended fixing rods can lift the placement sleeve so as to be suitable for fuse circuit breakers of different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a special operating rod for installing a fuse tube proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the front side structure of a special operating rod for installing a fuse barrel proposed by the utility model;

[0020] Figure 3 A special operating rod for installing a fuse tube proposed by the utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a structural cross-sectional view of a special operating rod for installing a fuse barrel proposed by the utility model;

[0022] Figure 5 A special operating rod for installing a fuse tube proposed by the utility model Figure 4 Enlarged view of point B in the middle.

[0023] Legend:

[0024] 1. Operating lever; 2. Locking mechanism; 201. Sliding sleeve; 202. Supporting horizontal plate; 203. Connecting rod; 204. Connecting rope; 205. Locking rod; 206. Supporting plate; 207. Compression spring; 208. Locking arc plate; 209. Ball; 3. Placing cylinder; 301. Clamping plate; 302. Extrusion spring; 4. Lifting mechanism; 401. Extended fixing rod; 402. Sliding support; 403. Screw rod; 404. Turning handle; 5. Fuse cylinder; 6. Anti-slip sleeve. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 5 The utility model provides two technical solutions, which specifically include the following embodiments:

[0027] Embodiment 1:

[0028] A special operating rod for installing a fuse tube, comprising an operating rod 1, a locking mechanism 2 is provided at the top of the operating rod 1, the locking mechanism 2 comprises a sliding sleeve 201, a supporting cross plate 202, a connecting rod 203, a connecting rope 204 and a locking arc plate 208, the side wall of the sliding sleeve 201 is fixedly connected with three supporting cross plates 202, the tops of the three supporting cross plates 202 are rotatably connected with connecting rods 203, the tops of the three connecting rods 203 are fixedly connected with connecting ropes 204, one ends of the three connecting ropes 204 are fixedly connected with locking rods 205, the bottom ends of the three locking rods 205 are rotatably connected with supporting plates 206, the inner sides of the three locking rods 205 are fixedly connected with compression springs 207, the tops of the three locking rods 205 are rotatably connected with locking arc plates 208, a placing tube 3 is provided at the top of the operating rod 1, a fuse tube 5 is provided inside the placing tube 3, the sliding sleeve 201 is slidably connected On the outside of the operating rod 1, the inner walls of the three locking arc plates 208 are fixedly connected with a plurality of balls 209, and one end of the three compression springs 207 is fixedly connected to the outer wall of the placement tube 3. The middle fixed sleeve of the operating rod 1 is provided with an anti-slip sleeve 6. The material of the protective sleeve 6 is made of silicone and has a certain anti-slip property to prevent the operating rod 1 from slipping due to sweating on the palms of the user. The inner walls of the two clamping plates 301 are in contact with the outer wall of the fuse tube 5. It should be noted that the materials of the balls 209 and the locking arc plates 208 are both made of insulating materials. By arranging the balls 209, the friction between the locking arc plates 208 and the fuse circuit breaker can be reduced. The inner wall of the placement tube 3 is fixedly connected with two extrusion springs 302, and one end of the two extrusion springs 302 is fixedly connected with the clamping plate 301. The two sides of the sliding support 402 are respectively slidably connected to the two sides of the inner wall of the operating rod 1, and one end of the two extended fixed rods 401 is fixedly connected to the bottom end of the placement tube 3.

[0029] During operation, the user separates the two clamping plates 301, and the two clamping plates 301 compress the two extrusion springs 302 respectively. Then, the user places the fuse tube 5 between the two clamping plates 301, and then the two extrusion springs 302 respectively drive the two clamping plates 301 to fix the fuse tube 5. The user lifts the operating rod 1, and then slides the sliding sleeve 201 down. The sliding sleeve 201 drives the multiple connecting rods 203 to descend, and the connecting rods 203 drive the connecting ropes 204 to descend respectively. The multiple connecting ropes 204 drive the locking rods 205, so that the multiple locking rods 205 drive the multiple locking arc plates 208 away from the fuse tube 5. The user lifts When the operating rod 1 and the plurality of locking arc plates 208 are sleeved on the outside of the fuse circuit breaker, the user pushes the sliding sleeve 201, and the plurality of arc-shaped locking plates are no longer stretched outward by the locking rod 205, and the plurality of compression springs 207 respectively drive the locking rod 205 to make the locking arc plates 208 fit the outside of the fuse circuit breaker. At this time, the placement tube 3 is placed at the bottom of the fuse circuit breaker, which can prevent the user from shaking the operating rod 1 during the process of lifting the operating rod 1, and prevent the fuse tube 5 from being misaligned with the bottom of the fuse circuit breaker. When the plurality of locking arc plates 208 fit the outside of the fuse circuit breaker, the user continues to lift the operating rod 1 to install the fuse tube 5.

[0030] Embodiment 2:

[0031] On the basis of Example 1, a lifting mechanism 4 is provided inside the operating rod 1, and the lifting mechanism 4 includes an extended fixed rod 401, a sliding support 402, a screw rod 403 and a rotating handle 404. The inside of the operating rod 1 is rotatably connected to the screw rod 403, and the middle part of the screw rod 403 is threadedly connected to the sliding support 402. The top of the sliding support 402 is fixedly connected to two extended fixed rods 401. The extended fixed rods 401 can extend the use height of the placement tube 3. A rotating handle 404 is provided at the bottom of the operating rod 1. The top of the rotating handle 404 passes through the bottom end of the operating rod 1 and is fixedly connected to one end of the screw rod 403.

[0032] When the height of the operating rod 1 is not enough, the user can rotate the rotating handle 404 so that the rotating handle 404 drives the screw rod 403 to rotate, and the rotating screw rod 403 drives the sliding support 402 to slide inside the operating rod 1, and the sliding support 402 rises. The sliding support 402 drives the two extended fixed rods 401 to rise, and the two extended fixed rods 401 can lift the placement sleeve so as to be suitable for fuse circuit breakers of different heights.

[0033] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the application should be included in the scope of protection of the present application.

Claims

1. A special operating rod for installing a fuse barrel, comprising an operating rod (1), characterized in that: A locking mechanism (2) is provided at the top of the operating rod (1), and the locking mechanism (2) comprises a sliding sleeve (201), a supporting transverse plate (202), a connecting rod (203), a connecting rope (204) and a locking arc plate (208); the side wall of the sliding sleeve (201) is fixedly connected to three supporting transverse plates (202); the top ends of the three supporting transverse plates (202) are rotatably connected to the connecting rod (203); the top ends of the three connecting rods (203) are fixedly connected to the connecting rope (204) 204), one end of the three connecting ropes (204) is fixedly connected to a locking rod (205), the bottom ends of the three locking rods (205) are rotatably connected to a support plate (206), the inner sides of the three locking rods (205) are fixedly connected to a compression spring (207), the top ends of the three locking rods (205) are rotatably connected to a locking arc plate (208), the top of the operating rod (1) is provided with a placement tube (3), and the interior of the placement tube (3) is provided with a fuse tube (5); The operating rod (1) is provided with a lifting mechanism (4) inside, and the lifting mechanism (4) comprises an extended fixed rod (401), a sliding support (402), a screw rod (403) and a rotating handle (404); the operating rod (1) is rotatably connected with the screw rod (403) inside, the middle part of the screw rod (403) is threadedly connected with the sliding support (402), the top end of the sliding support (402) is fixedly connected with two extended fixed rods (401), the inner wall of the placement tube (3) is fixedly connected with two extrusion springs (302), and one end of each of the two extrusion springs (302) is fixedly connected with a clamping plate (301).

2. A special operating rod for installing a fuse barrel according to claim 1, characterized in that: The sliding sleeve (201) is slidably connected to the outside of the operating rod (1), and the inner walls of the three locking arc plates (208) are fixedly connected with a plurality of balls (209).

3. The special operating rod for installing a fuse barrel according to claim 1, characterized in that: One end of each of the three support plates (206) is fixedly connected to the outer wall of the placement tube (3), and one end of each of the three compression springs (207) is fixedly connected to the outer wall of the placement tube (3).

4. The special operating rod for installing a fuse barrel according to claim 1, characterized in that: The middle fixed sleeve of the operating rod (1) is provided with an anti-slip sleeve (6).

5. The special operating rod for installing a fuse tube according to claim 1, characterized in that: The two sides of the sliding support (402) are respectively slidably connected to the two sides of the inner wall of the operating rod (1).

6. The special operating rod for installing a fuse tube according to claim 1, characterized in that: One end of the two extended fixing rods (401) is fixedly connected to the bottom end of the placement tube (3).

7. The special operating rod for installing a fuse barrel according to claim 1, characterized in that: A rotating handle (404) is provided at the bottom of the operating rod (1), and the top end of the rotating handle (404) passes through the bottom end of the operating rod (1) and is fixedly connected to one end of the screw rod (403).

8. The special operating rod for installing a fuse barrel according to claim 1, characterized in that: The inner walls of the two clamping plates (301) are both in contact with the outer wall of the fuse tube (5).

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