Small carbon tube furnace
By designing a hydraulic cylinder and a rotating block system in the carbon tube furnace, the receiving bucket can be quickly replaced, solving the problem that existing carbon tube furnaces require cooling before material removal, thus improving the practicality and safety of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-03-13
AI Technical Summary
Existing carbon tube furnaces require cooling after heating before materials can be removed, resulting in resource waste and reduced equipment usability.
A small carbon tube furnace was designed. A hydraulic cylinder drives a rotating block and a cover plate to seal the carbon tube furnace. A receiving bucket is used to heat the carbon tube furnace. After heating, the material can be quickly replaced by rotating the cover plate to avoid cooling.
This technology enables rapid heating and removal of materials, reducing resource waste and improving the practicality and safety of the device.
Smart Images

Figure CN223992481U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of carbon tube furnace technology, specifically a small carbon tube furnace. Background Technology
[0002] Carbon tube furnaces, also known as carbon tube resistance furnaces, are mainly used in the industrial ceramics, structural ceramics, cermets, and cemented carbide industries as sintering equipment for materials under atmospheric and pressure conditions. They are high-temperature, high-vacuum resistance furnaces using high-quality graphite as the heating element, with a rated temperature of 2000°C. Under special conditions, they can operate at 2400°C-2500°C for short periods in a protective atmosphere. They can be used for heating metals, refractory compounds, and ceramic materials in a vacuum or protective atmosphere.
[0003] However, in the use of some existing carbon tube furnaces, the materials need to be placed inside the furnace for heating. After heating, the furnace and the materials inside need to be cooled before they can be removed. This means that the furnace needs to be reheated for subsequent material heating, resulting in resource waste and reduced practicality of the device. Therefore, a small carbon tube furnace is proposed to address the above problems. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A small carbon tube furnace of this utility model includes a base, a carbon tube furnace body disposed on the outer side of the base, a hydraulic cylinder fixedly connected to the outer side of the base, a rotating block rotatably connected to the output end of the hydraulic cylinder, a cover plate fixedly connected to the outer side of the rotating block, and a receiving bucket fixedly connected to the outer side of the cover plate. The receiving bucket and the carbon tube furnace body are used in conjunction. This step involves setting up the carbon tube furnace body, hydraulic cylinder, rotating block, cover plate, and receiving bucket, aligning one side of the receiving bucket with the opening of the carbon tube furnace body, and then using the hydraulic cylinder to drive the rotating block downwards, thereby moving the furnace body downwards. The movable cover plate moves down to seal the carbon tube furnace body, allowing one side of the receiving bucket to enter the inner side of the carbon tube furnace body for heating. After heating is complete, the receiving bucket is raised, and the cover plate is rotated, causing the heated receiving bucket to move away from the carbon tube furnace body. The other side of the receiving bucket moves the material closer to the carbon tube furnace body for heating. This allows the material before or after heating to be interchanged between the receiving buckets, facilitating the quick placement and removal of heated and unheated materials. Consequently, the inner side of the carbon tube furnace body does not need to be cooled, reducing resource waste and improving the practicality of the device.
[0006] Preferably, a support frame is fixedly connected to the outer side of the base, a motor is fixedly connected to the outer side of the support frame, a square rod is fixedly connected to the output end of the motor, and a square groove is opened on the inner side of the rotating block. The square rod and the square groove are used in conjunction. In this step, by setting up the support frame, motor, square rod, and square groove, when changing the position between the receiving barrels, the rotating block can be driven to rise by the hydraulic cylinder, so that the square groove is close to the square rod, and the square rod is inserted into the inner side of the square groove. This allows the square rod to be rotated by the motor, thereby driving the rotating block, the cover plate, and the receiving barrel to rotate. This makes the replacement of the receiving barrel faster and more convenient, and allows the user to avoid contact with the cover plate. This also makes it less likely that the cover plate will burn the user when heated due to being close to the carbon tube furnace body, thus improving the safety and convenience of using the device.
[0007] Preferably, a groove is provided on the inner side of the carbon tube furnace body, and a heat insulation plate is fixedly connected to the outer side of the cover plate. The groove and the heat insulation plate are used in conjunction. This step, by setting the groove and the heat insulation plate, allows the heat insulation plate to be inserted into the groove when the cover plate is moved to fit tightly against the carbon tube furnace body, thereby further sealing and insulating the gap between the cover plate and the carbon tube furnace body, further reducing heat loss during heating, and improving the temperature performance of the device.
[0008] Preferably, a lifting frame is slidably connected to the inner side of the receiving bucket, and a push plate is fixedly connected to the outer side of the base. The lifting frame and the push plate are used in conjunction. This step, by setting up the lifting frame and the push plate, allows the lifting frame to be pushed up when one side of the receiving bucket moves down, through the contact between the push plate and the lifting frame, thereby driving the material inside the receiving bucket to rise, making the material easier to remove and improving the convenience of using the device.
[0009] Preferably, a fixing plate is fixedly connected to the outer side of the carbon tube furnace body, and a locking plate is slidably connected to the inner side of the fixing plate. This step, by setting the fixing plate and the locking plate, allows the cover plate to be moved to fit tightly against the outer side of the carbon tube furnace body. The locking plate can then be pulled to limit the upper part of the cover plate, thereby making the connection between the cover plate and the carbon tube furnace body more stable and improving the stability of the device.
[0010] Preferably, a magnetic plate is fixedly connected to the inner side of the cover plate, and the magnetic plate and the card plate are used in conjunction. By setting the magnetic plate, when the card plate moves to limit the cover plate, it can be attracted to the outside of the card plate by the magnetic plate, thereby further restricting the position of the card plate and improving the stability of the device.
[0011] The advantages of this utility model are:
[0012] 1. This utility model, by setting up a carbon tube furnace body, a hydraulic cylinder, a rotating block, a cover plate, and a receiving bucket, aligns one side of the receiving bucket with the opening of the carbon tube furnace body. Then, the hydraulic cylinder drives the rotating block to move down, which in turn drives the cover plate to move down to close the carbon tube furnace body. This allows one side of the receiving bucket to enter the inner side of the carbon tube furnace body for heating. After heating is completed, the receiving bucket is raised, and the cover plate is rotated, causing the heated receiving bucket to move away from the carbon tube furnace body. The other side of the receiving bucket moves the material closer to the carbon tube furnace body for heating. This allows the material before or after heating to be interchanged between the receiving buckets, facilitating the quick placement and removal of heated and unheated materials. Consequently, the inner side of the carbon tube furnace body does not need to be cooled, reducing resource waste and improving the practicality of the device.
[0013] 2. This utility model, by setting up a support frame, motor, square rod, and square groove, allows for position changes between receiving barrels. A hydraulic cylinder can drive a rotating block to rise, bringing the square groove closer to the square rod, allowing the square rod to insert into the inner side of the square groove. The motor can then drive the square rod to rotate, thereby rotating the rotating block, cover plate, and receiving barrel. This facilitates faster and more convenient replacement of the receiving barrel and prevents the user from contacting the cover plate. Furthermore, it reduces the risk of burns from the cover plate being heated when pressed against the carbon tube furnace body, thus improving the safety and convenience of the device. Attached Figure Description
[0014] 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.
[0015] Figure 1 This is a front view of the structure in this utility model;
[0016] Figure 2 This is a side view of the structure in this utility model;
[0017] Figure 3 This is a schematic diagram of the hydraulic cylinder structure in this utility model;
[0018] Figure 4 This is a schematic diagram of the cover plate structure in this utility model;
[0019] Figure 5 This is a schematic diagram of the receiving bucket structure in this utility model.
[0020] In the diagram: 1. Base; 2. Carbon tube furnace body; 201. Groove; 3. Hydraulic cylinder; 4. Rotating block; 5. Cover plate; 6. Receiving bucket; 7. Support frame; 8. Motor; 9. Square rod; 10. Square groove; 11. Heat insulation board; 12. Lifting frame; 13. Push plate; 14. Fixing plate; 15. Card plate; 16. Magnetic plate. Detailed Implementation
[0021] 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 scope of protection of the present utility model.
[0022] Specific implementation examples are given below.
[0023] Please see Figures 1 to 5 As shown, a small carbon tube furnace includes a base 1, a carbon tube furnace body 2 disposed on the outer side of the base 1, a hydraulic cylinder 3 fixedly connected to the outer side of the base 1, a rotating block 4 rotatably connected to the output end of the hydraulic cylinder 3, a cover plate 5 fixedly connected to the outer side of the rotating block 4, and a receiving bucket 6 fixedly connected to the outer side of the cover plate 5. The receiving bucket 6 and the carbon tube furnace body 2 are used in conjunction. This step involves aligning the receiving bucket 6 on one side of the carbon tube furnace body 2 with the opening of the carbon tube furnace body 2 by setting up the carbon tube furnace body 2, the hydraulic cylinder 3, the rotating block 4, the cover plate 5, and the receiving bucket 6, and then moving the rotating block 4 downwards via the hydraulic cylinder 3, which in turn moves the cover plate 5 downwards to the carbon tube furnace body 2. The carbon tube furnace body 2 is sealed, allowing one side of the receiving bucket 6 to enter the interior of the carbon tube furnace body 2 for heating. After heating is complete, the receiving bucket 6 is raised, and the cover plate 5 is rotated, causing the heated receiving bucket 6 to move away from the carbon tube furnace body 2. The other side of the receiving bucket 6 moves the material closer to the carbon tube furnace body 2 for heating. This allows the heated or unheated material to be interchanged between the receiving buckets 6, facilitating the quick placement and removal of heated and unheated materials. Consequently, the interior of the carbon tube furnace body 2 does not need to be cooled, reducing resource waste and improving the practicality of the device.
[0024] Furthermore, such as Figure 1 , Figure 3 and Figure 4As shown, a support frame 7 is fixedly connected to the outer side of the base 1, a motor 8 is fixedly connected to the outer side of the support frame 7, and a square rod 9 is fixedly connected to the output end of the motor 8. A square groove 10 is opened on the inner side of the rotating block 4, and the square rod 9 and the square groove 10 are used in conjunction. In this step, by setting up the support frame 7, motor 8, square rod 9 and square groove 10, when changing the position between the receiving barrels 6, the hydraulic cylinder 3 can drive the rotating block 4 to rise, so that the square groove 10 is close to the square rod 9, and the square rod 9 is inserted into the inner side of the square groove 10. This allows the motor 8 to drive the square rod 9 to rotate, thereby driving the rotating block 4, the cover plate 5 and the receiving barrel 6 to rotate, so that the replacement of the receiving barrel 6 is faster and more convenient, and the user does not have to contact the cover plate 5. This makes it less likely that the cover plate 5 will be burned by the user when heated due to being close to the carbon tube furnace body 2, thus improving the safety and convenience of the device.
[0025] Furthermore, such as Figure 1 As shown, a groove 201 is provided on the inner side of the carbon tube furnace body 2, and a heat insulation plate 11 is fixedly connected to the outer side of the cover plate 5. The groove 201 and the heat insulation plate 11 are used in conjunction. By setting the groove 201 and the heat insulation plate 11, when the cover plate 5 is moved to fit tightly against the carbon tube furnace body 2, the heat insulation plate 11 can be inserted into the inner side of the groove 201 to further seal and insulate the gap between the cover plate 5 and the carbon tube furnace body 2, further reducing heat loss during heating and improving the temperature performance of the device.
[0026] Furthermore, such as Figure 1 As shown, a lifting frame 12 is slidably connected to the inner side of the receiving bucket 6, and a push plate 13 is fixedly connected to the outer side of the base 1. The lifting frame 12 and the push plate 13 are used in conjunction. This step, by setting up the lifting frame 12 and the push plate 13, allows the lifting frame 12 to be pushed up when one side of the receiving bucket 6 moves down, through the contact between the push plate 13 and the lifting frame 12, thereby driving the material inside the receiving bucket 6 to rise, making the material easier to remove and improving the convenience of using the device.
[0027] Furthermore, such as Figure 1 As shown, a fixing plate 14 is fixedly connected to the outer side of the carbon tube furnace body 2, and a clamping plate 15 is slidably connected to the inner side of the fixing plate 14. By setting the fixing plate 14 and the clamping plate 15, after the cover plate 5 moves to be close to the outer side of the carbon tube furnace body 2, the clamping plate 15 can be pulled to limit the upper side of the cover plate 5, thereby making the connection between the cover plate 5 and the carbon tube furnace body 2 more stable and improving the stability of the device.
[0028] Furthermore, such as Figure 1As shown, a magnetic plate 16 is fixedly connected to the inner side of the cover plate 5. The magnetic plate 16 and the clamping plate 15 are used together. By setting the magnetic plate 16, when the clamping plate 15 moves to limit the cover plate 5, it can be attracted to the outside of the clamping plate 15 by the magnetic plate 16, thereby further restricting the position of the clamping plate 15 and improving the stability of the device.
[0029] The working principle is as follows: one receiving bucket 6 is aligned with the opening of the carbon tube furnace body 2, and then the hydraulic cylinder 3 drives the rotating block 4 to move down. The rotating block 4 drives the cover plate 5 to move down to close the carbon tube furnace body 2, so that one receiving bucket 6 enters the inside of the carbon tube furnace body 2 for heating. After heating is completed, the receiving bucket 6 is raised so that the square groove 10 is close to the square rod 9. After the square rod 9 is inserted into the inside of the square groove 10, the motor 8 drives the square rod 9 to rotate. The square rod 9 drives the cover plate 5 to rotate, so that the heated receiving bucket 6 moves away from the carbon tube furnace body 2. The other receiving bucket 6 moves the material to be close to the carbon tube furnace body 2 for heating. The material before or after heating can be exchanged between the receiving buckets 6 to facilitate the quick placement and removal of the heated and unheated materials into and out of the receiving buckets 6, so that the inside of the carbon tube furnace body 2 does not need to be cooled.
[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A small carbon tube furnace comprising a base (1), characterized in that: The outside of the base (1) is provided with a carbon tube furnace body (2), the outside of the base (1) is fixedly connected with a hydraulic cylinder (3), the output end of the hydraulic cylinder (3) is rotatably connected with a rotating block (4), the outside of the rotating block (4) is fixedly connected with a cover plate (5), the outside of the cover plate (5) is fixedly connected with a receiving barrel (6), and the receiving barrel (6) is used in cooperation with the carbon tube furnace body (2).
2. A small carbon tube furnace according to claim 1, characterized in that: The outside of the base (1) is fixedly connected with a support frame (7), the outside of the support frame (7) is fixedly connected with a motor (8), the output end of the motor (8) is fixedly connected with a square rod (9), the inside of the rotating block (4) is provided with a square groove (10), and the square rod (9) is used in cooperation with the square groove (10).
3. A small carbon tube furnace according to claim 2, characterized in that: The inside of the carbon tube furnace body (2) is provided with a groove (201), the outside of the cover plate (5) is fixedly connected with a heat insulation plate (11), and the groove (201) is used in cooperation with the heat insulation plate (11).
4. A small carbon tube furnace according to claim 3, wherein: The inside of the receiving barrel (6) is slidably connected with a lifting frame (12), the outside of the base (1) is fixedly connected with a push plate (13), and the lifting frame (12) is used in cooperation with the push plate (13).
5. A small carbon tube furnace according to claim 4, wherein: The outside of the carbon tube furnace body (2) is fixedly connected with a fixed plate (14), and the inside of the fixed plate (14) is slidably connected with a clamping plate (15).
6. A small carbon tube furnace according to claim 5, wherein: The inside of the cover plate (5) is fixedly connected with a magnetic plate (16), and the magnetic plate (16) is used in cooperation with the clamping plate (15).