Crucible tongs with replaceable tong heads

Abstract

The utility model discloses a pair of crucible tongs with a replaceable tong head. The crucible tongs comprise a movable sleeve, a movable rod, a first connecting plate, a second connecting plate and the tong head, a movable rod is movably inserted into the movable sleeve, a first connecting plate is fixedly welded to the lower portion of one end of the movable sleeve, a handle is fixedly welded to the upper portion of the other end of the movable sleeve, and a second connecting plate parallel to the first connecting plate is fixedly welded to the end, located on the first connecting plate, of the movable rod; a handle is welded and fixed at the other end of the movable rod; opposite tong heads are movably connected to the opposite faces of the first connecting plate and the second connecting plate in a clamped mode respectively. The crucible tongs with the replaceable tong heads have the beneficial effects that the structure is simple, the implementation is easy, the practicability of the crucible tongs is improved, the operation of clamping a boat-shaped crucible is simple and convenient, and the success rate of an experiment is improved; the crucible grabbing device can grab a plurality of crucibles at the same time, so that the working efficiency is improved, the energy consumption is reduced, and the damage to a hearth is reduced.

Description

Technical Field

[0001] This utility model patent belongs to the field of experimental equipment technology, specifically relating to a crucible tong with replaceable tong heads. Background Technology

[0002] In laboratory pilot tests, crucible tongs are used with high-temperature box furnaces. Samples need to be fed into the furnace at high temperatures, necessitating the use of crucible tongs and protective equipment to ensure personnel safety. Existing box furnaces are equipped with simple crucible tongs, allowing only one crucible to be fed at a time. When multiple samples need to be fed simultaneously, the furnace door must be kept open for extended periods, increasing energy consumption and causing damage to the furnace chamber due to large temperature differences between the inside and outside. Furthermore, these simple crucible tongs are generally suitable for round crucibles, making them difficult to use when holding boat-shaped crucibles, potentially leading to material spillage and experimental failure. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a crucible tong with a simple structure, improved practicality, and increased work efficiency, and a replaceable tong head.

[0004] This utility model discloses a crucible tong with replaceable tongs, comprising a movable sleeve, a movable rod, a first connecting plate, a second connecting plate, and tongs. The movable rod is movably inserted into the movable sleeve. The first connecting plate is welded and fixed to the lower part of one end of the movable sleeve, and a handle is welded and fixed to the upper part of the other end of the movable sleeve. A second connecting plate, parallel to the first connecting plate, is welded and fixed to the end of the movable rod located at the first connecting plate. A handle is welded and fixed to the other end of the movable rod. The tongs are movably engaged with the opposing surfaces of the first and second connecting plates.

[0005] Furthermore, opposing slots are respectively provided on the opposing surfaces of the first connecting plate and the second connecting plate, and the clamping plate of the pliers head is engaged with the slots.

[0006] Furthermore, the clamp head includes a fixing plate, a "7"-shaped clamping plate, and a clamping head; the clamping plate is welded and fixed to one side of the fixing plate, and the clamping head is welded and fixed to the lower side of the other side of the fixing plate.

[0007] Furthermore, the card head consists of several arc-shaped plates arranged side by side, with the back of the arc-shaped plates fixed to the fixing plate, and the inner arc surface of the arc-shaped plates forming a snap-fit ​​space.

[0008] Furthermore, the card head consists of several straight plates arranged side by side, one side of which is fixed to the fixed plate, and a snap-fit ​​space is formed between adjacent straight plates.

[0009] Furthermore, at least one slider is integrally formed on the inner wall of the movable sleeve along its length direction, and a limiting groove matching the slider is provided on the surface of the movable rod, and the slider is slidably disposed in the limiting groove.

[0010] Advantages of this utility model:

[0011] 1. The present invention discloses a crucible tong with replaceable tong heads. It has a simple structure and is easy to implement. By designing the tong heads to be detachable, the corresponding tong heads can be selected and installed according to the shape of the crucible, which expands the functionality of the crucible tong. It can be used to clamp both round crucibles and boat-shaped crucibles, which improves the practicality of the crucible tong. In turn, it makes the operation of clamping boat-shaped crucibles simple and improves the success rate of experiments.

[0012] 2. The present invention discloses a crucible tong with replaceable tong heads. By designing the tong heads, the number of clamping spaces is increased, thereby enabling the simultaneous gripping of multiple crucibles, improving work efficiency, reducing energy consumption, and reducing damage to the furnace. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 for Figure 1 A cross-sectional view of section AA.

[0016] Figure 3 This is a schematic diagram of the pliers head in Example 1.

[0017] Figure 4 This is a schematic diagram of the pliers head in Example 2.

[0018] 1. Movable sleeve, 2. Movable rod, 21. Limiting groove, 3. First connecting plate, 4. Second connecting plate, 5. Pliers head, 51. Fixing plate, 52. Clamping plate, 53. Arc plate, 531. Straight plate, 532. Handle, 6. Handle, 7. Clamping slot, 8. Slider, 9. Detailed Implementation

[0019] The present invention will be further described in detail below through embodiments.

[0020] Example 1: As Figure 1-3 As shown, a crucible tong with replaceable tongs includes a movable sleeve 1, a movable rod 2, a first connecting plate 3, a second connecting plate 4, and tongs 5. The movable rod 2 is movably inserted into the movable sleeve 1. The first connecting plate 3 is welded and fixed to the lower part of one end of the movable sleeve 1, and a handle 6 is welded and fixed to the upper part of the other end of the movable sleeve 1. The second connecting plate 4, which is parallel to the first connecting plate 3, is welded and fixed to the end of the movable rod 2 located at the first connecting plate 3. A handle 7 is welded and fixed to the other end of the movable rod 2. Opposite tongs 5 ​​are movably engaged on the opposing surfaces of the first connecting plate 3 and the second connecting plate 4. Opposite slots 8 are opened on the opposing surfaces of the first connecting plate 3 and the second connecting plate 4, and the locking plates 52 of the tongs 5 ​​are engaged on the slots 8.

[0021] The clamp head 5 includes a fixed plate 51, a "7"-shaped clamping plate 52, and a clamp head 53. The clamping plate 52 is welded and fixed on one side of the fixed plate 51, and the clamp head 53 is welded and fixed on the lower side of the other side of the fixed plate 51. The clamp head 53 consists of four arc-shaped plates 531 arranged side by side. The back of the arc-shaped plates 531 is fixed to the fixed plate 51. The inner arc surface of the arc-shaped plates 531 forms a clamping space, with a total of four clamping spaces, which are used to clamp the round crucibles and realize the gripping of multiple round crucibles.

[0022] At least one slider 9 is integrally formed on the inner wall of the movable sleeve 1 along its length. A limiting groove 21 matching the slider 9 is provided on the surface of the movable rod 2. The slider 9 is slidably disposed in the limiting groove 21 to ensure that the movable rod 2 only moves back and forth within the movable sleeve 1, preventing it from rotating, thereby ensuring that the two clamps 5 can clamp and release the crucible.

[0023] Example 2: Its overall structure is the same as that of Example 1, except that, as Figure 4 As shown, the clamping head 53 consists of six straight plates 532 arranged side by side. One side of each straight plate 532 is fixed to a fixing plate 51. Five clamping spaces are formed between adjacent straight plates 532 for clamping boat-shaped crucibles. This makes clamping boat-shaped crucibles easier, improves the success rate of experiments, and enables the grasping of multiple boat-shaped crucibles.

[0024] The crucible tongs of this invention are made of refractory steel.

[0025] Working principle: In use, first select the corresponding pair of clamp heads 5 and install them on the first connecting plate 3 and the second connecting plate 4 respectively. The clamp head 5 is installed by locking it onto the bayonet 8 through the clamp plate 52. Next, check the position of the crucible inside the box furnace. Then, grab the handle 6 above the movable sleeve 1 with one hand and the handle 7 on the movable rod 2 with the other hand, and send the crucible clamp into the furnace. Then, align the two clamp heads 5 with the crucible and place them on both sides. Then, pull the movable rod 2 to grab the crucible. Finally, remove multiple crucibles from the box furnace. Similarly, when multiple crucibles need to be placed into the furnace, use the crucible clamp to hold multiple crucibles, then send them into the furnace. Push the movable rod 2 to release the crucibles, then lift the crucible clamp, and finally remove the crucible clamp from the furnace. Close the furnace door. This improves work efficiency, reduces energy consumption, and reduces damage to the furnace chamber.

[0026] The above are preferred embodiments of this utility model. For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A crucible tong with replaceable tong heads, characterized in that, It includes a movable sleeve, a movable rod, a first connecting plate, a second connecting plate, and pliers heads; the movable rod is movably inserted into the movable sleeve; the first connecting plate is welded and fixed below one end of the movable sleeve; a handle is welded and fixed above the other end of the movable sleeve; a second connecting plate, parallel to the first connecting plate, is welded and fixed at the end of the movable rod located at the first connecting plate; a handle is welded and fixed at the other end of the movable rod; and the pliers heads are movably engaged on the opposing surfaces of the first and second connecting plates.

2. The crucible tongs with replaceable tong heads according to claim 1, characterized in that, The first connecting plate and the second connecting plate have opposing slots on their respective surfaces, and the clamping plate of the pliers head engages with the slots.

3. A crucible tong with replaceable tong heads according to claim 2, characterized in that, The clamp head includes a fixing plate, a "7"-shaped clamping plate, and a clamping head; the clamping plate is welded and fixed to one side of the fixing plate, and the clamping head is welded and fixed to the lower side of the other side of the fixing plate.

4. A crucible tong with replaceable tong heads according to claim 3, characterized in that, The clamping head consists of several arc-shaped plates arranged side by side. The back of the arc-shaped plates is fixed to the fixing plate, and the inner arc surface of the arc-shaped plates forms a clamping space.

5. A crucible tong with replaceable tong heads according to claim 3, characterized in that, The clip head consists of several straight plates arranged side by side, with one side of each straight plate fixed to a fixed plate, and a snap-fit ​​space formed between adjacent straight plates.

6. A crucible tong with replaceable tong heads according to any one of claims 1-5, characterized in that, At least one slider is integrally formed on the inner wall of the movable sleeve along its length direction, and a limiting groove matching the slider is provided on the surface of the movable rod, and the slider is slidably disposed in the limiting groove.

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