Crucible taking and placing tongs for high-temperature box-type resistance furnace

Abstract

The utility model discloses a kind of high-temperature box type resistance furnace with crucible taking and placing tongs, including hollow branch pipe, the hollow branch pipe one end is provided with reset pushing component, the reset pushing component one end is provided with rectangular handle, the hollow branch pipe outside is provided with auxiliary handle, the hollow branch pipe is inserted with sliding rod, the sliding rod is connected with reset pushing component and one end is inserted into rectangular handle, the utility model relates to crucible tongs technical field, when using, left hand holds auxiliary handle, right hand thumb and heel of the foot part hold rectangular handle, and make right hand other fingers rest on T type pull rod, send into high-temperature box type resistance furnace with clamp and carry out preheating, after preheating, further send clamp to crucible two side positions, pull T type pull rod, utilize sliding rod to pull clamp, so that clamp is clamped and fixed from two sides to crucible, two hands cooperate and keep balance, take out crucible, compact structure, convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of crucible clamp technology, specifically a crucible handling clamp for a high-temperature box-type resistance furnace. Background Technology

[0002] High-temperature box-type resistance furnaces mainly consist of two parts: the furnace body and the control box. Box-type resistance furnaces generally operate under natural atmosphere conditions and mostly use internal heating, employing refractory and insulating materials for the furnace lining. Due to the high internal temperature of the box-type resistance furnace, users cannot directly handle the crucibles; sampling tools are required. Currently, the commonly used tool for sampling from inside the box-type resistance furnace is crucible tongs. In existing technology, most crucible tongs adopt a scissor-type design, controlled by rotating the handle to increase the friction between the jaws and the crucible, thus clamping the crucible. Applying force with both hands simultaneously is inconvenient; insufficient force or a loose clamp can cause the crucible to fall; excessive force may directly cause cracks on the crucible surface. Therefore, this project was developed to address these issues through in-depth research. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a crucible handling tong for a high-temperature box-type resistance furnace, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a crucible handling clamp for a high-temperature box-type resistance furnace, comprising a hollow branch pipe, a reset pushing component at one end of the hollow branch pipe, a rectangular handle at one end of the reset pushing component, an auxiliary handle on the outside of the hollow branch pipe, a sliding rod inserted inside the hollow branch pipe, the sliding rod being connected to the reset pushing component and having one end extending into the rectangular handle, a T-shaped pull rod being fitted at one end of the sliding rod located inside the rectangular handle, a guide sleeve being embedded in the other end of the hollow branch pipe, symmetrically provided limit grooves in the guide sleeve, limit protrusions being provided on both sides of the sliding rod corresponding to the limit groove positions, two clamps being hinged together in the middle by a fixed shaft, and the tails of the clamps being rotatably connected to the ends of the sliding rods by connecting rods.

[0005] The aforementioned clamp includes a clamp body and a clamp jaw. The clamp body is rotatably engaged with a fixed shaft, and the two clamp bodies form a scissor structure. A connecting pin is provided at the tail of the clamp body, and the connecting pin is rotatably engaged with a connecting rod. The clamp jaw is an arc-shaped plate structure and is fixed on the front end of the clamp body. An arc-shaped support plate is provided at the lower part of the clamp jaw.

[0006] The aforementioned reset and push component includes a fixed tube, both ends of which are threaded interfaces for assembly and connection with a hollow branch tube and a rectangular handle, respectively. The fixed tube is provided with a fixed retaining ring and a movable retaining ring. The movable retaining ring is fixedly welded to the sliding rod. A compression spring is inserted into the fixed tube, with one end of the compression spring in contact with the fixed retaining ring and the other end in contact with the movable retaining ring.

[0007] The sliding rod has an external thread at one end inside the rectangular grip, and the T-shaped pull rod has a threaded groove at the end that matches the external thread.

[0008] The sliding rod is provided with a connecting frame at one end, and a limit pin is provided on the connecting frame. The limit pin is rotatably engaged with the connecting rod. Beneficial effects

[0009] This invention provides a crucible handling clamp for a high-temperature box-type resistance furnace. It offers the following advantages: Based on a hollow branch tube, a sliding rod is installed inside the hollow branch tube. In use, the left hand holds the auxiliary handle, while the right thumb and forefinger hold the rectangular handle, with the other fingers resting on the T-shaped pull rod. The clamp is inserted into the high-temperature box-type resistance furnace for preheating. After preheating, the clamp is further moved to both sides of the crucible. Pulling the T-shaped pull rod, along with the sliding rod, clamps the crucible from both sides. Both hands work together to maintain balance and remove the crucible. The structure is compact and easy to use. Moving the crucible to the placement platform and releasing the T-shaped pull rod causes the clamp to automatically release under the resetting force of the resetting pusher. Single-handed application of force effectively ensures stability, and the operator only needs to maintain balance. The handheld parts are kept away from the high-temperature zone, making it suitable for use with various types of high-temperature box-type resistance furnaces. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the crucible handling tongs for a high-temperature box-type resistance furnace described in this utility model.

[0011] Figure 2 This is a top view of the crucible handling tongs for a high-temperature box-type resistance furnace according to the present invention.

[0012] Figure 3 This utility model Figure 1 A partially enlarged structural diagram.

[0013] Figure 4 This utility model Figure 1 A partial cross-sectional structural diagram.

[0014] Figure 5 This is an isometric structural diagram of the guide sleeve described in this utility model.

[0015] Figure 6 This is an isometric structural diagram of the crucible handling tongs for a high-temperature box-type resistance furnace described in this utility model, in use.

[0016] In the diagram: 1. Hollow branch pipe; 2. Rectangular handle; 3. Auxiliary handle; 4. Sliding rod; 5. T-shaped pull rod; 6. Guide sleeve; 7. Limiting groove; 8. Limiting protrusion; 9. Fixed shaft; 10. Connecting rod; 11. Pliers body; 12. Pliers jaws; 13. Connecting pin; 14. Arc-shaped support plate; 15. Fixed pipe; 16. Fixed retaining ring; 17. Movable retaining ring; 18. Compression spring; 19. Connecting frame; 20. Limiting pin. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example: Refer to the appendix of the instruction manual Figure 1-6As can be seen, this application specifically designs a crucible handling clamp for a high-temperature box-type resistance furnace, including a hollow branch pipe 1. A reset pushing component is provided at one end of the hollow branch pipe 1, and a rectangular handle 2 is provided at one end of the reset pushing component. An auxiliary handle 3 is provided on the outside of the hollow branch pipe 1. A sliding rod 4 is inserted into the hollow branch pipe 1. The sliding rod 4 is connected to the reset pushing component and one end extends into the rectangular handle 2. A T-shaped pull rod 5 is installed at one end of the sliding rod 4 located in the rectangular handle 2. A guide sleeve 6 is embedded in the other end of the hollow branch pipe 1. A limit groove 7 is symmetrically opened in the guide sleeve 6. Limiting protrusions 8 are provided on both sides of the sliding rod 4 corresponding to the positions of the limit grooves 7. The two clamps are hinged together in the middle by a fixed shaft 9. The tails of the clamps are rotatably connected to the ends of the sliding rod 4 by connecting rods 10. A connecting frame 19 is provided at one end of the sliding rod 4, and a limit pin 20 is provided on the connecting frame 19. The limiting pin 20 and the connecting rod 10 rotate and engage. When in use, the left hand holds the auxiliary handle 3, and the right thumb and the web of the hand hold the rectangular handle 2, with the other fingers of the right hand resting on the T-shaped pull rod 5. The clamp is then inserted into the high-temperature box-type resistance furnace for preheating. After preheating, the clamp is further inserted to both sides of the crucible. The T-shaped pull rod 5 is pulled, and the sliding rod 4 is used to pull the clamp, so that the clamp clamps the crucible from both sides. Both hands work together to maintain balance and remove the crucible. The structure is compact and easy to use. The crucible is moved to the placement platform, and the T-shaped pull rod 5 is released. Under the action of the reset pushing component, the clamp automatically releases. Applying force with one hand can effectively ensure the stability of the applied force. The auxiliary hand of the experimental operator only needs to maintain balance. The hand-held parts are all away from the high-temperature area, making it suitable for use in different types of high-temperature box-type resistance furnaces.

[0019] In specific implementation, as a preferred configuration, the above-mentioned clamp includes a clamp body 11 and a clamp jaw 12. The clamp body 11 is rotatably engaged with the fixed shaft 9, and the two clamp bodies 11 form a scissor structure. A connecting pin 13 is provided at the tail of the clamp body 11, and the connecting pin 13 is rotatably engaged with the connecting rod 10. The clamp jaw 12 is an arc-shaped plate structure and is fixed on the front end of the clamp body 11. An arc-shaped support plate 14 is provided at the lower part of the clamp jaw 12. In use, the clamp jaw 12 clamps the upper side wall of the crucible in a clamping and limiting manner, while the arc-shaped support plate 14 provides auxiliary clamping to the lower side wall of the crucible and provides a vertical support force, thereby making the clamping effect of the crucible more stable.

[0020] In a preferred embodiment, the aforementioned reset and push-up component includes a fixed tube 15. Both ends of the fixed tube 15 have threaded interfaces for assembly and connection with the hollow branch tube 1 and the rectangular handle 2, respectively. The fixed tube 15 contains a fixed retaining ring 16 and a movable retaining ring 17. The movable retaining ring 17 is fixedly welded to the sliding rod 4. A compression spring 18 is inserted into the fixed tube 15, with one end of the compression spring 18 contacting the fixed retaining ring 16 and the other end contacting the movable retaining ring 17. In a preferred embodiment, the sliding rod 4 has an external thread at one end inside the rectangular handle 2, and the T-shaped pull rod 5 has a threaded groove at its end that matches the external thread. In the non-use state, the compression spring 18... In the expanded state, the front end of the sliding rod 4 extends outside the hollow branch pipe 1, pushing the connecting frame 19 and the connecting rod 10 closer to the fixed shaft 9. At this time, the connecting rod 10 pushes the clamp body 11 to move, keeping the clamp jaws 12 open. When it is necessary to clamp the crucible in the high-temperature box-type resistance furnace, after aligning the clamp jaws 12 with both sides of the crucible, pull the T-shaped pull rod 5, so that the movable retaining ring 17 moves closer to the fixed retaining ring 16 to compress the compression spring 18. At this time, the sliding rod 4 moves to the rectangular handle 2, and the connecting rod 10 pulls the clamp body 11 to move, so that the clamp jaws 12 move closer to each other to clamp and fix the crucible. The structure is compact, easy to use, and allows for single-handed force control, making the force control more reliable. In addition, after a period of use, the compression spring 18 can be replaced. First, remove the T-shaped pull rod 5 from one end of the sliding rod 4, then remove the rectangular handle 2 from one end of the fixed tube 15, and then remove the fixed tube 15 from the hollow branch tube 1. After replacing the compression spring 18, reinstall it in reverse order.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crucible handling tong for a high-temperature box-type resistance furnace, characterized in that, The device includes a hollow branch pipe, one end of which is provided with a reset pushing component, and one end of which is provided with a rectangular handle. An auxiliary handle is provided on the outside of the hollow branch pipe. A sliding rod is inserted into the hollow branch pipe, and the sliding rod is connected to the reset pushing component with one end extending into the rectangular handle. A T-shaped pull rod is fitted to one end of the sliding rod located in the rectangular handle. A guide sleeve is embedded in the other end of the hollow branch pipe. Limiting grooves are symmetrically formed in the guide sleeves. Limiting protrusions are provided on both sides of the sliding rod corresponding to the positions of the limiting grooves. The two clamps are hinged together in the middle by a fixed shaft, and the tails of the clamps are rotatably connected to the ends of the sliding rods by connecting rods.

2. The crucible handling tongs for a high-temperature box-type resistance furnace according to claim 1, characterized in that, The clamp includes a clamp body and a jaw. The clamp body is rotatably engaged with a fixed shaft, and the two clamp bodies form a scissor structure. A connecting pin is provided at the tail of the clamp body, and the connecting pin is rotatably engaged with a connecting rod. The jaw is an arc-shaped plate structure and is fixed on the front end of the clamp body. An arc-shaped support plate is provided at the lower part of the jaw.

3. The crucible handling tongs for a high-temperature box-type resistance furnace according to claim 1, characterized in that, The reset pusher component includes a fixed tube with threaded interfaces at both ends for assembly and connection with a hollow branch tube and a rectangular handle, respectively. The fixed tube is provided with a fixed retaining ring and a movable retaining ring. The movable retaining ring is fixedly welded to the sliding rod. A compression spring is inserted into the fixed tube, with one end of the compression spring in contact with the fixed retaining ring and the other end in contact with the movable retaining ring.

4. The crucible handling tongs for a high-temperature box-type resistance furnace according to claim 1, characterized in that, The sliding rod has an external thread at one end inside the rectangular grip, and the T-shaped pull rod has a threaded groove at its end that matches the external thread.

5. The crucible handling tongs for a high-temperature box-type resistance furnace according to claim 1, characterized in that, One end of the sliding rod is provided with a connecting frame, and a limit pin is provided on the connecting frame. The limit pin is rotatably engaged with the connecting rod.

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