Crucible clamping tool

Abstract

The utility model relates to the technical field of metal smelting, and particularly discloses a crucible clamping tool. Comprising handles and a clamping opening connected with the handles, the clamping opening comprises a fixed jaw and a movable jaw, the handles comprise a fixed handle and a movable handle, the two ends of the fixed jaw are connected with the fixed handle, one end of the movable jaw is hinged to the fixed jaw, and the other end of the movable jaw is fixedly connected with the movable handle which can be rotatably attached to the fixed handle. The problems that in the prior art, when two persons clamp the same crucible, the two persons use two crucible tongs, due to the fact that the crucible tongs of the two persons are separated but not integrated, the clamping process is not stable enough, the crucible falls off accidentally, and the clamping efficiency is high are solved through the fixed handles arranged at the two ends of the clamping opening and the movable handles capable of being attached in a rotating mode. And the risk of major safety accidents caused by overflow of high-temperature molten liquid is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of metal smelting, in particular to a crucible clamping tool. Background Art

[0002] In the metal smelting process, the metal is usually placed in a crucible and heated to melt the metal. The crucible containing the high-temperature molten metal liquid is then taken out of the furnace with crucible tongs, and the crucible is clamped with crucible tongs and poured out before solidification.

[0003] In order to clamp the crucible well, the crucible tongs are usually designed with a circular clamping opening that is consistent with the size of the crucible. For example, the patent document with application number: CN202223351760.6 discloses an anti-falling assembly for crucible tongs and crucible tongs, whose structure includes a left handle, a right handle, and a left jaw and a right jaw, wherein the left handle and the right jaw form a first component, the right handle and the left jaw form a second component, the first component and the second component are arranged crosswise, and a pivot is arranged at the intersection; wherein the left jaw and the right jaw together form a clamping opening for clamping the crucible, and the clamping opening can fit the outer circumference of the crucible well, so that the crucible is more stable during the clamping process.

[0004] However, the clamping mouth of the crucible tongs is formed by two separate parts that are hinged. When in use, pressure is applied to the handle of the crucible clamps to close the clamping mouth. This method is very practical for small crucibles in the laboratory, but when facing crucibles in production, one person cannot operate it because the overall mass of the crucible and the molten metal in the crucible is too large. If two people work together, each worker uses a crucible tongs to clamp the crucible, but because the two crucible tongs are separated, the crucible is not stable enough during clamping. If the crucible accidentally falls off during this process, the overflow of high-temperature molten liquid will cause a major safety accident. Utility Model Content

[0005] The utility model aims to provide a crucible clamping tool to solve the problem that in the prior art mentioned above, when two people clamp the same crucible, they use two crucible tongs. Since the crucible tongs of the two people are separate rather than integrated, the clamping process is not stable enough, and there is a risk of the crucible accidentally falling off and the high-temperature molten liquid overflowing, causing a major safety accident.

[0006] In order to solve the above problems, the technical solution adopted by the utility model is as follows: a crucible clamping tool, comprising a handle, a clamping mouth connected to the handle, the clamping mouth comprising a fixed jaw and a movable jaw, the handle comprising a fixed handle and a movable handle, both ends of the fixed jaw are connected to the fixed handle, one end of the movable jaw is hinged to the fixed jaw, and the other end is fixedly connected to the movable handle which can be rotatably fitted with the fixed handle.

[0007] The beneficial effects of this embodiment are:

[0008] 1. In the prior art, when facing a heavy crucible, one person cannot clamp the crucible. When two people work together, since they use different crucible tongs, the force on the crucible is not in the same direction, and the clamping process is not stable enough. There is a risk of the crucible accidentally falling off and the high-temperature molten liquid spilling out, causing a major safety accident. However, the present application sets handles at both ends of the crucible clamping mouth, making it more practical for two people to work together at both ends of the clamping mouth, and the entire device is a whole and more stable.

[0009] Furthermore, the fixed handle is provided with a U-shaped handle for easy gripping, so that workers can grip the crucible more conveniently.

[0010] Furthermore, the U-shaped handle is wrapped with a fireproof cloth. Although workers wear gloves when using it, directly wrapping the fireproof cloth can still reduce the surface temperature of the U-shaped handle.

[0011] Furthermore, the clamping opening is a bottomless cone barrel structure with a gradually decreasing diameter.

[0012] Furthermore, the movable handle is provided with a fitting rod, and the fixed handle is provided with a socket for the fitting rod to pass through. The socket and the rod can play a positioning role when the movable handle and the fixed handle are fitted, thereby ensuring that the movable jaw and the fixed jaw are closed.

[0013] Furthermore, the fitting rod has a limit hole, and the fixed handle is provided with a fixing pin that can be inserted into the limit hole. The fixing pin cooperates with the limit block to lock the movable wrench and the fixed handle when they fit together, so that the crucible is not easily shaken during clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an embodiment of the utility model,

[0015] Figure 2 This is a schematic diagram of the structure of the locking device according to an embodiment of the utility model. DETAILED DESCRIPTION

[0016] The following is further described in detail through specific implementation methods:

[0017] The reference numerals in the drawings of the specification include: first fixed handle 11, second fixed handle 12, plug hole 121, locking device 122, base 1221, support 1222, fixing pin 1223, limiting block 1224, limiting handle 1225, U-shaped handle 13, movable jaw 21, fixed jaw 22, hinge 23, movable handle 3, fitting plug rod 31, limiting hole 32

[0018] Implementation example Figures 1-2As shown: it includes a fixed handle, which is divided into a first fixed handle 11 and a second fixed handle 12. U-shaped handles 13 are welded at both ends of the fixed handles, and fireproof cloth can be wrapped around the U-shaped handles 13 for workers to hold conveniently.

[0019] A fixed jaw 22 is welded between the first fixed handle 11 and the second fixed handle 12, so the first fixed handle 11, the second fixed handle 12 and the fixed jaw 22 are a fixed structure welded together. A hinge 23 is welded on the circumference of the first fixed handle 11 on the opposite side of the welding point between the first fixed handle 11 and the fixed jaw 22. The first fixed handle 11 is rotatably connected with the movable jaw 21 through the hinge 23. The cross-sections of the movable jaw 21 and the fixed jaw 22 are both semi-circular ring structures, and the movable jaw 21 can be rotated with the fixed jaw 22 to form a clamping opening that fits the outer circumference of the crucible. The inner circular space formed by the clamping opening is not a cylinder with the same diameter at the top and bottom, but a bottomless cone barrel structure with a large opening diameter at the top and a small opening diameter at the bottom. This structure not only fits the cone-like outer contour of the crucible better, but the small diameter opening at the bottom can support the crucible to prevent the crucible from shaking.

[0020] A movable handle 3 is welded on the outer circumference of the end of the movable jaw 21 away from the hinge 23. The movable handle 3 and the fixed handle structure are both stainless steel pipe structures. Since the movable handle 3 and the movable jaw 21 are welded as a whole, the movable handle 3 can be used to drive the movable jaw 21 to rotate around the hinge 23. When the movable handle 3 is fitted with the second fixed handle 12, the fixed jaw 22 and the movable jaw 21 are just closed. A fitting rod 31 is provided on the circumferential surface of the movable handle 3 facing the second fixed handle 12, and a plug hole 121 is provided at the corresponding position of the second fixed handle 12, and a limiting hole 32 is provided at the end of the fitting rod 31 to penetrate the fitting rod 31. Therefore, when the movable handle 3 is fitted with the second fixed handle 12, the fitting rod 31 can be just inserted into the plug hole 121 and exposed from the other side of the second fixed handle 12, and the limiting hole 32 is also completely exposed on the other side of the second fixed handle 12; a locking device 122 is provided at a position of the second fixed handle 12 close to the plug hole 121.

[0021] The locking device 122 is as follows Figure 2 As shown, it includes a base 1221 welded with the second fixed handle 12, a support 1222 is arranged on the base 1221, two through holes are horizontally opened on the support 1222, a fixing pin 1223 is sleeved in the through hole, a limiting handle 1225 which is integrated with the fixing pin 1223 is arranged on the fixing pin 1223, and a limiting block 1224 is arranged on the base 1221. During use, the fixing pin 1233 can be pushed into the limiting hole 32 on the fitting plug rod 31, so that the fitting of the movable handle 3 and the second fixed handle 12 is locked, and then the movable jaw 21 and the fixed jaw 22 are closed and locked.

[0022] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A crucible clamping tool, comprising a handle and a clamping opening connected to the handle, characterized in that: The clamping mouth includes a fixed jaw and a movable jaw, and the handle includes a fixed handle and a movable handle. Both ends of the fixed jaw are connected to the fixed handle. One end of the movable jaw is hinged to the fixed jaw, and the other end is fixedly connected to the movable handle which can be rotatably fitted with the fixed handle.

2. The crucible clamping tool according to claim 1, characterized in that: The fixed handle is provided with a U-shaped handle which is convenient for holding.

3. The crucible clamping tool according to claim 2, characterized in that: The U-shaped handle is wrapped with a fireproof cloth.

4. The crucible clamping tool according to claim 1, characterized in that: The clamping opening is a bottomless cone barrel structure with a gradually decreasing diameter.

5. The crucible clamping tool according to claim 1, characterized in that: The movable handle is provided with a fitting rod, and the fixed handle is provided with a plug hole for the fitting rod to pass through.

6. The crucible clamping tool according to claim 5, characterized in that: The fitting insertion rod is provided with a limiting hole, and the fixing handle is provided with a fixing pin which can be inserted into the limiting hole.

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