Disconnecting link furnace changing switch

Abstract

The utility model discloses a disconnecting link furnace changing switch, and belongs to the technical field of electric power control. The device mainly comprises a base; the blade is hinged to the upper end of the base; the elastic sheet clamping group is used for clamping the blade; the clamping mechanism is mounted at one end of the base, is used for clamping the blade, and is provided with a first placement plate, a second placement plate and a clamping mechanism; the height of the first placing plate is higher than that of the second placing plate, and a placing cavity is formed and used for placing a blade; the movable plate is movably connected to the second placing plate; the protruding plate is fixed to the upper end of the first containing plate, one end of the protruding plate protrudes out of the first containing plate, and the other end of the movable plate is located below the protruding plate; and the adjusting part is mounted at the lower end of the movable plate and used for adjusting the position of the movable plate. According to the knife switch furnace changing switch, the effects that the knife switch cannot be turned off if an operator touches the switch by mistake, mistaken work or direct shutdown of an industrial electric furnace cannot be caused, and the fault occurrence probability is reduced are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of power control, and in particular to a knife switch for changing furnaces. Background Art

[0002] Knife switch refers to a knife switch, which is a switch that uses a hinged lever to open or close the circuit. The furnace changer indicates that the purpose of the switch is to achieve the transition between different furnaces. Therefore, the knife switch furnace changer refers to a switching device used to switch or switch between different furnaces in an industrial environment.

[0003] After searching, for example, the Chinese utility model patent with publication number CN204303644U provides a fast phase-changing knife switch, which has a simple structure and changes the traditional installation and wire winding methods, saving trouble and labor, and is safe and reliable.

[0004] Existing electric furnace switches are usually installed near the electric furnace equipment or directly on the furnace body of the electric furnace. However, when the electric furnace is in use or when loading and unloading materials into the furnace, the operator may easily touch the switch due to negligence, causing the industrial electric furnace to malfunction or directly stop working, increasing the probability of failure and even posing certain safety hazards. Therefore, it is necessary to provide a knife switch to solve the above problems.

[0005] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0006] Based on the above-mentioned problems existing in the prior art, the problem to be solved by the present application is: to provide a knife switch for changing furnaces, so that if the operator accidentally touches the switch, the knife switch will not be closed, and the industrial electric furnace will not be caused to malfunction or directly stop working, thereby reducing the probability of failure.

[0007] The technical solution adopted by the present application to solve the technical problem is: a knife switch furnace change switch, comprising:

[0008] Base;

[0009] a blade hinged to the upper end of the base;

[0010] A spring clip assembly, which is used to clamp the blade;

[0011] A clamping mechanism, which is installed at one end of the base and is used to clamp the blade, and the clamping mechanism has:

[0012] First placement board;

[0013] a second placement plate, wherein the height of the first placement plate is higher than that of the second placement plate and forms a placement cavity, wherein the placement cavity is used to place the blade;

[0014] A movable plate, the movable plate is movably connected to the second placement plate;

[0015] A convex plate, the convex plate is fixed to the upper end of the first placement plate, one end of the convex plate protrudes from the first placement plate, and the other end of the movable plate is located below the convex plate;

[0016] An adjusting member is installed at the lower end of the movable plate, and is used to adjust the position of the movable plate.

[0017] Furthermore, the second placement plate is divided into a vertical plate located at the lower end, a bottom plate located at the upper end of the vertical plate, and a support plate located at the upper end of the bottom plate. The bottom plate is horizontally installed on the vertical plate, and the support plate is vertically installed on the other end of the bottom plate. The movable plate is movably connected to the upper end of the support plate.

[0018] Furthermore, the adjusting member has a connecting rod, which is hinged to the lower end of the movable plate, and the connecting rod passes through and protrudes from the bottom plate. A spring is fixedly installed between the inner side of the bottom plate and the hinged member, and the spring is sleeved on the connecting rod.

[0019] Furthermore, a handle ring is fixedly mounted on the protruding end of the connecting rod.

[0020] Furthermore, a fixing mechanism is fixedly installed at the lower end of the locking mechanism, and the fixing mechanism also includes a support rod, the upper end of the support rod is fixedly connected to the lower ends of the first placement plate and the second placement plate, and the lower end of the support rod is also fixedly installed with a fixing seat, and both ends of the fixing seat are fixedly installed with mounting plates, and the mounting plates are threaded with fixing bolts.

[0021] Furthermore, a handle is fixedly mounted on the other end of the blade.

[0022] Furthermore, the outer sides of the handle and the engaging mechanism are both provided with flame-retardant reinforced nylon material.

[0023] The beneficial effect of the present application is that the knife switch for changing furnaces provided in the present application is provided with a locking mechanism. If the operator touches the switch by mistake, the knife switch will not be closed, and the industrial electric furnace will not be caused to malfunction or directly stop working, thereby reducing the probability of failure.

[0024] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings in the specification, which constitute a part of the present application, are used to provide further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0026] In the attached picture:

[0027] Figure 1 This is an overall schematic diagram of a knife switch furnace changer in this application;

[0028] Figure 2 for Figure 1 A magnified schematic diagram of the middle A area;

[0029] Figure 3 for Figure 2 A schematic front view of the overall structure;

[0030] Among them, the reference numerals in the figure are:

[0031] 1. Base; 11. Knife holder; 12. Blade; 13. Handle; 14. First spring clip; 15. Second spring clip;

[0032] 2. Clamping mechanism; 21. First placement plate; 22. Second placement plate; 221. Vertical plate; 23. Bottom plate; 24. Support plate; 25. Movable plate; 26. Convex plate; 27. Connecting rod; 28. Spring; 29. ​​Handle ring;

[0033] 3. Fixing mechanism; 31. Support rod; 32. Fixing seat; 33. Mounting plate; 34. Fixing bolt. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0036] like Figure 1As shown, the present application provides a knife switch furnace switch, including a base 1, two sets of knife seats 11 are fixedly installed at the center of the base 1, and blades 12 are hinged on the two sets of knife seats 11 respectively. A handle 13 is fixedly installed at the other end of the blade 12, and the position of the blade 12 is conveniently adjusted by the handle 13;

[0037] At the same time, a spring clip group is fixedly installed at both ends of the base 1, and the spring clip group is used to clamp the blade 12. The spring clip group has a first spring clip 14 and a second spring clip 15. The first spring clip 14 and the second spring clip 15 are respectively arranged on both sides of the knife seat 11. It should be noted that when the blade 12 is engaged with the second spring clip 15, the knife switch is in the closed state, and when the blade 12 is engaged with the first spring clip 14, the knife switch is in the open state.

[0038] In order to prevent the operator from accidentally touching and closing the knife switch, a locking mechanism 2 is installed at one end of the base 1 close to the first spring clip 14, and the locking mechanism 2 is provided with two groups. It should be noted that when the blade 12 is located in the first spring clip 14, the blade 12 is located in the locking mechanism 2 at this time, and the two groups of blades 12 are locked by the two groups of locking mechanisms 2, and a fixing mechanism 3 is fixedly installed at the lower end of the locking mechanism 2, and the locking mechanism 2 is fixed to the base 1 by the fixing mechanism 3.

[0039] like Figure 2-Figure 3 As shown, the locking mechanism 2 has a first placement plate 21 and a second placement plate 22, the height of the first placement plate 21 is higher than the height of the second placement plate 22, and the first placement plate 21 and the second placement plate 22 are arranged relative to each other to form a placement cavity, which is used to place the blade 12.

[0040] Furthermore, the second placement plate 22 is divided into a vertical plate 221 at the lower end, a bottom plate 23 at the upper end of the vertical plate 221, and a support plate 24 at the upper end of the bottom plate 23. It should be noted that the bottom plate 23 is horizontally mounted on the vertical plate 221, and the support plate 24 is vertically mounted on the other end of the bottom plate 23. The upper end of the support plate 24 is movably connected to a movable plate 25.

[0041] At the same time, a protruding plate 26 is fixedly installed on the upper end of the first placing plate 21, and one end of the protruding plate 26 protrudes from the first placing plate 21. It should be noted that under normal conditions, the end of the movable plate 25 away from the support plate 24 is located below the protruding plate 26, so that the support plate 24 cannot be rotated upward to open, so as to block the blade 12 in the placing cavity.

[0042] In order to facilitate the adjustment of the position of the movable plate 25, an adjusting member is installed at the lower end of the movable plate 25, and the adjusting member has a connecting rod 27. At the same time, a hinge (marked in the figure) is installed at the lower end of the movable plate 25, through which the connecting rod 27 can be hinged to the lower end of the movable plate 25. The connecting rod 27 passes through and protrudes from the bottom plate 23. At the same time, a spring 28 is fixedly installed between the inner side of the bottom plate 23 and the hinge. The spring 28 is sleeved on the connecting rod 27. Therefore, the movable plate 25 can be supported by the spring 28 and the connecting rod 27, and the end of the movable plate 25 is always close to the bottom of the convex plate 26.

[0043] A handle ring 29 is fixedly mounted on the protruding end of the connecting rod 27 , and the position of the connecting rod 27 can be easily adjusted by the handle ring 29 .

[0044] The fixing mechanism 3 also includes a support rod 31, the upper end of which is fixedly connected to the lower ends of the first placement plate 21 and the second placement plate 22, and a fixing seat 32 is fixedly installed at the lower end of the support rod 31, and mounting plates 33 are fixedly installed at both ends of the fixing seat 32, and fixing bolts 34 are threadedly connected to the mounting plates 33. Therefore, when installing the locking mechanism 2, the fixing seat 32 and the mounting plate 33 are sleeved on the end of the base 1, and then the fixing bolts 34 are tightened to fix the locking mechanism 2.

[0045] In the present application, the outer sides of the handle 13 and the engaging mechanism 2 are provided with flame-retardant reinforced nylon material to prevent safety accidents caused by electrical conduction.

[0046] To sum up: when the knife switch needs to be opened, the blade 12 is manually pushed toward the first spring clip 14 through the handle 13 until the blade 12 is stuck in the first spring clip 14. At the same time, in the process of pushing the blade 12, when the blade 12 reaches the position of the locking mechanism 2, the movable plate 25 will be pushed downward, so that the movable plate 25 pushes the connecting rod 27 downward and squeezes the spring 28. When the blade 12 completely passes through the movable plate 25 and enters the placement cavity, the spring 28 is reset and pushes the movable plate 25 to reset and stick to the convex plate 26. At this time, if the operator accidentally touches the switch, the knife switch will not be closed, and the industrial electric furnace will not be caused to malfunction or directly stop working, thereby reducing the probability of failure.

[0047] When the knife switch is closed again, the operator manually pulls the ring 29 outward, and the ring 29 drives the connecting rod 27 outward, so that the movable plate 25 rotates inward to open the placement cavity. At this time, the handle 13 is bent downward to drive the blade 12 downward to complete the closing.

[0048] In the present application, a similar locking mechanism 2 may also be provided at one end of the second spring clip 15 to prevent the knife switch from being accidentally touched and opened.

[0049] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A knife switch furnace change switch, characterized in that: include: Base (1); A blade (12), the blade (12) being hinged to the upper end of the base (1); A spring clip assembly, the spring clip assembly being used to clamp the blade (12); A snap-fit ​​mechanism (2), the snap-fit ​​mechanism (2) being mounted on one end of the base (1), the snap-fit ​​mechanism (2) being used to snap-fit ​​the blade (12), the snap-fit ​​mechanism (2) comprising: A first placement plate (21); a second placement plate (22), wherein the height of the first placement plate (21) is higher than the height of the second placement plate (22) and forms a placement cavity, wherein the placement cavity is used to place the blade (12); A movable plate (25), the movable plate (25) being movably connected to the second placement plate (22); a convex plate (26), the convex plate (26) being fixed to the upper end of the first placement plate (21), one end of the convex plate (26) protruding from the first placement plate (21), and the other end of the movable plate (25) being located below the convex plate (26); An adjusting member is installed at the lower end of the movable plate (25), and is used to adjust the position of the movable plate (25).

2. A knife switch for changing furnaces according to claim 1, characterized in that: The second placement plate (22) is divided into a vertical plate (221) located at the lower end, a bottom plate (23) located at the upper end of the vertical plate (221), and a support plate (24) located at the upper end of the bottom plate (23); the bottom plate (23) is horizontally installed on the vertical plate (221), the support plate (24) is vertically installed at the other end of the bottom plate (23), and the movable plate (25) is movably connected to the upper end of the support plate (24).

3. A knife switch for changing furnaces according to claim 2, characterized in that: The adjusting member comprises a connecting rod (27), the connecting rod (27) is hinged to the lower end of the movable plate (25), the connecting rod (27) penetrates and protrudes from the bottom plate (23), a spring (28) is fixedly installed between the inner side of the bottom plate (23) and the hinged member, and the spring (28) is sleeved on the connecting rod (27).

4. A knife switch furnace changeover switch according to claim 3, characterized in that: A handle ring (29) is also fixedly mounted on the protruding end of the connecting rod (27).

5. The knife switch for changing furnaces according to claim 1, characterized in that: A fixing mechanism (3) is fixedly mounted on the lower end of the locking mechanism (2), and the fixing mechanism (3) further comprises a support rod (31), the upper end of the support rod (31) is fixedly connected to the lower ends of the first placement plate (21) and the second placement plate (22), and a fixing seat (32) is also fixedly mounted on the lower end of the support rod (31), and mounting plates (33) are fixedly mounted on both ends of the fixing seat (32), and fixing bolts (34) are threadedly connected to the mounting plates (33).

6. The knife switch for changing furnaces according to claim 1, characterized in that: A handle (13) is fixedly mounted on the other end of the blade (12).

7. A knife switch for changing furnaces according to claim 6, characterized in that: The outer sides of the handle (13) and the engaging mechanism (2) are both provided with flame-retardant reinforced nylon material.

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