Box-type resistance furnace

Abstract

The utility model relates to a box-type resistance furnace which comprises a base, a furnace body is supported on the base through a vertical plate, a furnace opening is formed in the bottom of the furnace body, lifting seats driven by a lifting mechanism to ascend and descend are arranged on the two sides of the lower portion of the furnace body, and a movable seat is slidably supported between the two lifting seats. The output end of the first rotating motor penetrates through the movable base to be fixed to a rotary disc located on the inner side of the sealing block, one side of the supporting disc is hinged to the rotary disc, a containing groove hinged to a telescopic rod is formed in the rotary disc, the other end of the telescopic rod is hinged to the supporting disc, and at least two sets of vertical screws are arranged on the supporting disc. And a plurality of storage trays are sequentially arranged on the two groups of vertical screw rods in the vertical direction. By adopting the resistance furnace, the utilization rate of the internal space of the resistance furnace can be improved by arranging a plurality of layers of storage trays in the furnace body, the resistance furnace can adapt to medicinal materials with different sizes by adjusting the heights of the storage trays, the medicinal materials can be uniformly heated by rotating the turntable, the burning effect of the medicinal materials is improved, the use is flexible, and the adaptability is strong.

Description

Technical Field

[0001] The utility model relates to the technical field of resistance furnaces, in particular to a box-type resistance furnace. Background Art

[0002] During high-temperature calcination, medicinal materials undergo a series of physical and chemical changes, ultimately causing the organic components to volatilize and dissipate, while the inorganic components remain. This residue is called ash, and it is an indicator of the total amount of inorganic components in the medicinal material. High-temperature calcination of medicinal materials requires the use of a box-type resistance furnace. Existing box-type resistance furnaces have a single interior space, and medicinal material samples can only be placed at the bottom, resulting in low space utilization. There are also methods for improving space utilization by providing multiple placement plates on a sealed door. For example, Chinese patent publication number "CN214172937U" discloses a box-type resistance furnace with multiple placement plates on a sealed door. However, with this method, the spacing between the multiple placement plates cannot be adjusted according to the size of the sample, and the sample is fixedly placed on the placement plates during calcination, resulting in uneven heating, inconvenience, and unsatisfactory calcination results. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a box-type resistance furnace to solve the problems of low space utilization and unsatisfactory burning effect of the box-type resistance furnace in the prior art.

[0004] In order to solve the above technical problems, the utility model provides a box-type resistance furnace, comprising a base, a furnace body is supported on the base by a vertical plate, a heating element is provided on the inner cavity wall of the furnace body, a furnace opening is opened at the bottom of the furnace body, and lifting seats driven to rise and fall by a lifting mechanism are provided on both sides below the furnace body, a movable seat is slidably supported between the two lifting seats, a sealing block that cooperates with the edge of the furnace opening is provided on the movable seat, a first rotating motor is fixed to the bottom of the movable seat, and an output end of the first rotating motor passes through the movable seat and a rotating shaft located inside the sealing block. The disc is fixed, and a supporting disc is provided on the turntable, one side of the supporting disc is hinged to the turntable, and a accommodating groove is provided on the turntable, a telescopic rod is hinged in the accommodating groove, and the other end of the telescopic rod is hinged to the supporting disc, and at least two groups of vertical screws are provided on the supporting disc, and a plurality of storage discs are provided on the two groups of vertical screws in sequence along the vertical direction, and a ring is provided on the storage disc that can be sleeved on the vertical screw, and a threaded sleeve that cooperates with the thread of the vertical screw is rotatable in one of the rings, and locking nuts that cooperate with the thread of the vertical screw are provided on the upper and lower sides of the ring.

[0005] Furthermore, the lifting mechanism includes bidirectional screws arranged on both sides of the base, one of the bidirectional screws is fixed to the output end of the second rotating motor, and the two bidirectional screws rotate synchronously through a transmission mechanism. The two ends of the bidirectional screws are threadedly connected to movable sleeves, and a connecting rod is hinged on the movable sleeve. The middle parts of the two connecting rods on the same side are hinged in an X shape and the tops are slidably connected to the bottom of the lifting seat.

[0006] Furthermore, a limiting groove is provided on the lifting seat, a guide rod is provided in the limiting groove, two sliders hinged to the connecting rod are slidably provided on the guide rod, and an elastic member is provided between the slider and the side wall of the limiting groove.

[0007] Furthermore, sliding grooves with front openings are provided on the facing sides of the two lifting seats, and sliding rails cooperating with the sliding grooves are provided on both sides of the movable seat.

[0008] Furthermore, the rear sides of the two lifting seats are connected by a limit stop bar.

[0009] Furthermore, a handle is provided at the bottom of the movable seat.

[0010] The beneficial effects of the present invention are as follows: the base supports the furnace body, and the heating element on the inner wall of the furnace body is used to provide heat energy. The lifting seat is driven by the lifting mechanism to lift and lower the movable seat between the two lifting seats, thereby driving the turntable, support plate, and storage tray on the lifting seat to rise synchronously into the inner cavity of the furnace body, or to descend and move out of the inner cavity of the furnace body, facilitating the discharge or removal of materials. The sealing block is set so that when the movable seat rises and abuts the bottom of the furnace body, it seals the furnace opening to prevent heat loss. The first rotating motor at the bottom of the movable seat is used to provide rotational power for the turntable. When the turntable rotates, it drives the support plate on it to rotate synchronously, and then drives the storage tray supported by the vertical screw to rotate synchronously, ensuring that the medicinal materials placed on the storage tray are evenly heated and improving the burning effect. The support plate is hinged to the turntable. When the telescopic rod is extended, it drives the support plate to rotate around the hinge axis between it and the turntable, causing the support plate to tilt, and then drives the storage tray on it to tilt, facilitating the pouring of medicinal materials on the plant tray. The storage tray cooperates with the vertical screw through a collar. During installation, a locking nut is inserted into the vertical screw, and then the collar on the outside of the storage tray is installed on the vertical screw. The threaded sleeve in one of the collars is rotated. Since the vertical screw is fixed, the threaded sleeve moves on the vertical screw, driving the storage tray to move, thereby adjusting the height of the storage tray and realizing the adjustment of the distance between two adjacent storage trays to adapt to different sizes of medicinal materials.

[0011] During use, multiple storage trays are mounted on the vertical screw according to the size of the medicinal materials. After placing the medicinal materials in the storage trays, the lifting mechanism drives the lifting seat and movable seat to rise, causing the sealing block on the movable seat to seal the furnace mouth of the furnace body. The heating element is then turned on to burn the medicinal materials. At the same time, the first rotary motor starts to rotate the turntable, which in turn drives the support plate and plant plate to rotate, ensuring that the medicinal materials are heated evenly. After burning is completed, the lifting mechanism drives the lifting seat and movable seat to descend. After the vertical screw and storage trays are removed from the furnace body, the movable seat can be pulled forward and removed from the lifting seat. The telescopic rod is then extended to tilt the storage tray, and the burned medicinal materials can be poured out.

[0012] In summary, by adopting the present invention, a multi-layer storage tray can be arranged in the furnace body to improve the utilization rate of the internal space of the resistance furnace, and the height of the storage tray can be adjusted to accommodate medicinal materials of different sizes. Furthermore, the rotation of the turntable drives the storage tray to rotate, so that the medicinal materials can be heated evenly, thereby improving the burning effect of the medicinal materials. It is flexible to use and has strong adaptability.

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the threaded sleeve of the utility model.

[0017] In the accompanying drawings: 1-base, 2-furnace body, 201-furnace mouth, 3-lifting seat, 301-limiting groove, 302-guide rod, 303-slider, 304-elastic member, 305-slide groove, 4-lifting mechanism, 401-bidirectional screw, 402-second rotating motor, 403-transmission mechanism, 404-movable sleeve, 405-connecting rod, 5-movable seat, 501-sealing block, 502-slide rail, 503-handle, 6-first rotating motor, 7-turntable, 701-accommodating groove, 8-support plate, 9-telescopic rod, 10-vertical screw, 11-placement plate, 111-ring, 112-threaded sleeve, 12-locking nut, 13-limiting block. DETAILED DESCRIPTION

[0018] With reference to the accompanying drawings, specific embodiments of the present invention will be described in detail.

[0019] Reference Figures 1 to 3The utility model provides a box-type resistance furnace, including a base 1, on which a furnace body 2 is supported by a vertical plate. A heating element is provided on the inner cavity wall of the furnace body 2 for providing heat energy, and a furnace mouth 201 is opened at the bottom of the furnace body 2.

[0020] The furnace body 2 is provided with lifting seats 3 on both sides below the two lifting seats 3, which are driven to rise and fall by the lifting mechanism 4. A movable seat 5 is slidably supported between the two lifting seats 3. The movable seat 5 is provided with a sealing block 501 that cooperates with the edge of the furnace opening 201. The sealing block 501 is provided so that when the movable seat 5 rises and abuts against the bottom of the furnace body 2, it seals the furnace opening 201 and prevents heat loss. The two lifting seats 3 jointly support the movable seat 5 to ensure the stability of the device. The lifting seats 3 are driven to rise and fall by the lifting mechanism 4, which drives the movable seat 5 between the two lifting seats 3 to rise and fall, thereby driving the turntable 7, support plate 8 and storage plate 11 on the lifting seats 3 to synchronously rise into the inner cavity of the furnace body 2, or to descend and move out of the inner cavity of the furnace body 2. Furthermore, the two lifting seats 3 are provided with a front-opening slide 305 on the facing sides, and the movable seat 5 is provided with a slide rail 502 on both sides that cooperate with the slide 305. Through the cooperation of the chute 305 and the slide rail 502, the movable seat 5 can be moved horizontally between the two lifting seats 3, making it convenient to pull out the storage tray 11 after the burning is completed, so as to facilitate the material removal. Furthermore, a handle 503 is also provided at the bottom of the movable seat 5 for easy operation. Preferably, a limiting chute 305 is also provided on the inner wall of the chute 305, and a limiting protrusion that cooperates with the limiting chute 305 is provided at the rear end of the slide rail 502 to prevent the movable seat 5 from detaching from the lifting seat 3. Furthermore, the rear sides of the two lifting seats 3 are connected by a limiting stop bar 13. At this time, the setting of the limiting stop bar 13 can connect the two lifting seats 3 as a whole, improve stability, and limit the extreme position of the movable seat 5 moving backward so that the sealing block 501 on the movable seat 5 can be aligned with the furnace door.

[0021] Furthermore, the lifting mechanism 4 includes bidirectional screws 401 disposed on both sides of the base 1, one of which is fixed to the output end of the second rotary motor 402. The two bidirectional screws 401 rotate synchronously via a transmission mechanism 403. Specifically, the transmission mechanism 403 includes sprockets disposed on the two bidirectional screws 401, and a chain transmission is provided between the two sprockets. When one bidirectional screw 401 rotates under the action of the second rotary motor 402, the chain transmission drives the other bidirectional screw 401 to rotate synchronously. The two ends of the bidirectional screw 401 are threadedly connected to a movable sleeve 404, and the movable sleeve 404 is hinged to a connecting rod 405. The middle parts of the two connecting rods 405 on the same side are hinged in an X-shape, and the tops are slidably connected to the bottom of the lifting base 3. When the second rotary motor 402 drives the bidirectional screw 401 to rotate, the movable sleeves 404 on the same side move toward each other on the bidirectional screw 401, causing the two connecting rods 405 on the same side to drive the lifting seat 3 upward. Alternatively, the movable sleeves 404 move away from each other on the bidirectional screw 401, causing the two connecting rods 405 on the same side to drive the lifting seat 3 downward. The synchronous rotation of the two bidirectional screws 401 causes the lifting seats 3 on both sides to rise or fall synchronously, thereby driving the movable seat 5 upward or downward. Furthermore, the lifting seat 3 is provided with a limiting groove 301, within which a guide rod 302 is disposed. Two sliders 303, hingedly connected to the connecting rod 405, are slidably mounted on the guide rod 302. An elastic member 304 is disposed between the sliders 303 and the sidewalls of the limiting groove 301. The elastic member 304 can be a spring, which is sleeved on the guide rod 302 and cooperates with the sliders 303 through the guide rod 302 to improve the stability of the sliders 303's movement. When the lifting base 3 rises under the action of the connecting rod 405 , the two sliders 303 on the same side move toward each other. When the lifting base 3 descends under the action of the connecting rod 405 , the two sliders 303 move away from each other.

[0022] A first rotary motor 6 is fixed to the bottom of the movable seat 5. The output end of the first rotary motor 6 passes through the movable seat 5 and is fixed to the turntable 7 located inside the sealing block 501. The turntable 7 is driven to rotate by the first rotary motor 6. Specifically, a sealed bearing is provided between the output end of the first rotary motor 6 and the movable seat 5. A ball bearing is provided at the bottom of the turntable 7. The upper surface of the movable seat 5 is provided with an annular groove that rolls with the ball bearing to ensure the stability of the turntable 7 during rotation.

[0023] A support plate 8 is provided on the turntable 7, one side of the support plate 8 is hinged to the turntable 7, and a receiving groove 701 is provided on the turntable 7. A telescopic rod 9 is hinged in the receiving groove 701, and the other end of the telescopic rod 9 is hinged to the support plate 8. When the telescopic rod is extended, it drives the support plate 8 to rotate around the hinge axis between it and the turntable 7, so that the support plate 8 tilts, and then drives the placement plate 11 thereon to tilt, so as to facilitate pouring out the medicinal materials on the plant plate.

[0024] The support plate 8 is provided with at least two sets of vertical screws 10, and a plurality of storage trays 11 are arranged in sequence along the vertical direction on the two sets of vertical screws 10. When the turntable 7 rotates, the support plate 8 on it is driven to rotate synchronously, and in turn, the storage trays 11 supported by the vertical screws 10 are driven to rotate synchronously, ensuring that the medicinal materials placed on the storage trays 11 are evenly heated, thereby improving the burning effect. Preferably, there are three sets of vertical screws 10, two of which are symmetrically arranged, and one set is arranged between the two symmetrically arranged sets of vertical screws 10. The three sets of vertical screws 10 ensure the stability of the storage trays 11.

[0025] The storage tray 11 is provided with a collar 111 that can be sleeved on the vertical screw rod 10. A threaded sleeve 112 that is threadedly engaged with the vertical screw rod 10 is rotatably provided in one of the collars 111. Furthermore, the collar 111 extends from the upper or lower end of the threaded sleeve 112 to facilitate the rotation of the threaded sleeve 112. Locking nuts 12 that are threadedly engaged with the vertical screw rod 10 are provided on the upper and lower sides of the collar 111. During installation, after a locking nut 12 is sleeved onto the vertical screw rod 10, the collar 111 on the outside of the storage tray 11 is installed onto the vertical screw rod 10, and the threaded sleeve 112 in one of the collars 111 is rotated. Since the vertical screw rod 10 is fixed, the threaded sleeve 112 moves on the vertical screw rod 10, driving the storage tray 11 to move, thereby adjusting the height of the storage tray 11 and adjusting the distance between two adjacent storage trays 11 to accommodate different sizes of medicinal materials.

[0026] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0027] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A box-type resistance furnace, characterized in that: The furnace body (2) comprises a base (1), a furnace body (2) is supported on the base (1) via a vertical plate, a heating element is provided on the inner cavity wall of the furnace body (2), and a furnace opening (201) is provided at the bottom of the furnace body (2). Lifting seats (3) driven to rise and fall by a lifting mechanism (4) are provided on both sides below the furnace body (2); a movable seat (5) is slidably supported between the two lifting seats (3); a sealing block (501) is provided on the movable seat (5) and is matched with the edge of the furnace opening (201). A first rotating motor (6) is fixed to the bottom of the movable seat (5), and an output end of the first rotating motor (6) passes through the movable seat (5) and is fixed to a turntable (7) located inside the sealing block (501). A support plate (8) is provided on the turntable (7), and one side of the support plate (8) is hinged to the turntable (7). A receiving groove (701) is provided on the turntable (7), and a telescopic rod (9) is hinged in the receiving groove (701). The other end of the telescopic rod (9) is hinged to the support plate (8). The support plate (8) is provided with at least two groups of vertical screw rods (10), and a plurality of storage plates (11) are sequentially provided on the two groups of vertical screw rods (10) in a vertical direction. The storage plates (11) are provided with collars (111) that can be sleeved on the vertical screw rods (10), wherein a threaded sleeve (112) that is threadably matched with the vertical screw rods (10) is provided in one collar (111), and locking nuts (12) that are threadably matched with the vertical screw rods (10) are provided on the upper and lower sides of the collar (111).

2. The box-type resistance furnace according to claim 1, characterized in that: The lifting mechanism (4) includes bidirectional screws (401) arranged on both sides of the base (1), wherein one bidirectional screw (401) is fixed to the output end of the second rotating motor (402), and the two bidirectional screws (401) rotate synchronously through a transmission mechanism (403), and the two ends of the bidirectional screw (401) are threadedly connected to a movable sleeve (404), and the movable sleeve (404) is hinged with a connecting rod (405), and the middle parts of the two connecting rods (405) on the same side are hinged in an X shape, and the tops are slidably connected to the bottom of the lifting seat (3).

3. The box-type resistance furnace according to claim 2, characterized in that: The lifting seat (3) is provided with a limiting groove (301), a guide rod (302) is provided in the limiting groove (301), two sliders (303) hinged to the connecting rod (405) are slidably provided on the guide rod (302), and an elastic member (304) is provided between the slider (303) and the side wall of the limiting groove (301).

4. The box-type resistance furnace according to claim 1, characterized in that: The two lifting seats (3) are provided with sliding grooves (305) with front openings on the facing sides, and the movable seat (5) is provided with sliding rails (502) that match the sliding grooves (305) on both sides.

5. The box-type resistance furnace according to claim 1, characterized in that: The rear sides of the two lifting seats (3) are connected via a limit stop bar (13).

6. The box-type resistance furnace according to claim 1, characterized in that: A handle (503) is also provided at the bottom of the movable seat (5).

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