An experimental product placement bracket and an oven for laboratory use

Abstract

The present invention provides an experimental article placement bracket and an oven for laboratory use, relating to the field of experimental tools, including a bracket; the bracket is located on the side of the oven body, and L-shaped rods are inserted into the inner sides of the front ends of the bracket. A cross bar is connected between the two rods. The bracket is connected to a splicing structure through a vertical rod and a bottom plate. The splicing structure is connected to a sealing structure through a plugging groove, and the rods are inserted into the inner part of the limiting holes. The bracket is connected to the vertical rod, and then the bracket is inserted into the limiting holes through the rods. The bracket can be controlled to be used at different heights, and the number of brackets used can be freely added, improving the flexibility during use. The bracket can be freely disassembled and removed, facilitating removal for cleaning and maintenance. Moreover, after the sealing structure drives the bracket and the experimental articles to be taken out, the experimental articles will be exposed outside, facilitating heat dissipation, solving the problems of low flexibility in using the bracket inside the laboratory oven and laborious maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of experimental tools, and particularly to a placement bracket for experimental articles and an oven for laboratory use. Background Art

[0002] In laboratories, many items such as reagents, drugs, and compounds need to be stored under dry conditions to ensure the accuracy and repeatability of experiments. For example, in fields such as chemistry, biology, and medicine, many reagents and materials need to be stored and processed in drying ovens. When performing drying treatments, laboratory ovens are used. Laboratory ovens are equipment used for drying, baking, melting wax, and sterilization in factories, mines, universities, research institutions, medical units, and various laboratories. Inside a laboratory oven, there is usually a bracket for holding experimental articles. However, for commonly used laboratory ovens on the market, after multiple uses or improper operations, it is easy to cause dirt and residues inside the oven, especially the dirt removal at the edge and gap positions is difficult. Moreover, after the experimental articles are dried and the cabinet door is opened, the experimental articles and the bracket are at a relatively high temperature, which is likely to scald the experimental personnel, and the cooling speed of the experimental articles is slow, affecting efficiency. In addition, the bracket inside the oven has low flexibility in use and is laborious to maintain. Summary of the Invention

[0003] Embodiments of the present disclosure relate to a placement bracket for experimental articles and an oven for laboratory use. The bracket is connected to a vertical rod, and then the bracket is inserted into a limiting hole through an insertion rod, so that the bracket can be controlled to be used at different heights, and the number of brackets used can be freely added, improving the flexibility in use. The bracket can be freely disassembled and removed, which is convenient for removal and cleaning and maintenance. Moreover, after the sealed structure drives the bracket and the experimental articles to be taken out, the experimental articles will be exposed outside, facilitating heat dissipation.

[0004] In the first aspect of the present invention, there is provided a placement bracket for experimental articles and an oven for laboratory use, which are achieved by the following specific technical means:

[0005] A laboratory oven includes an oven body; a controller and operation buttons are arranged on the left side of the oven body. Inside the oven body, a scraping assembly with a U-shaped structure is installed and can slide freely back and forth inside the oven body. The front cross-section of the scraping assembly is an inclined structure. A contact member with a U-shaped structure is adhered to the outside of the scraping assembly, and the contact member made of sponge moves together with the scraping assembly; a heat dissipation bracket; two heat dissipation brackets are installed on the right side of the oven body. Inside the heat dissipation bracket, a heat dissipation member is installed through an embedding groove and drives the heat dissipation member to move together. A positioning plate is fixed at the outer end of the heat dissipation bracket, and a fixing component for connection is inserted into the positioning plate. The inner side of the fixing component with a T-shaped structure is an arc structure.

[0006] In at least some embodiments, on both sides of the inner top of the oven body, there is respectively provided a guiding chute. The two L-shaped chutes are symmetrically arranged. On the right side of the oven body, there are two T-shaped outer chutes. Inside the outer chutes, there is a flow-through chute communicating with the inside of the oven body. On the left side of the oven body, there is a heat dissipation chute. The flow-through chute is communicated with the heat dissipation chute. Inside the outer chutes, there is inserted a heat dissipation bracket, and it can be freely pulled in and out inside the heat dissipation bracket; Inside the chutes, there is inserted a slider, and it can freely slide inside the chutes. The two L-shaped sliders are symmetrically fixed at both upper ends of the scraping assembly. At the inner side angle positions of both sides of the scraping assembly, there is respectively fixed a guiding rod; The outer part of the guiding rod is sleeved with a connecting assembly, and it can freely slide on the outer part of the guiding rod. The inner side of the connecting assembly is provided with a pulling plate for operation. The outer end bottom of the connecting assembly is of a cylindrical structure, and the outer end of the connecting assembly is inserted into the top inner part of the connecting head.

[0007] In at least some embodiments, inside the heat dissipation bracket, there is an embedding groove. On the inner side of the embedding groove, there are four round holes, and the positions of the round holes correspond to the positions of the heat dissipation elements. On the side of the positioning plate, there is fixed an L-shaped pushing component. The pushing component made of elastic metal is in a fitting connection with the fixing component; On the outer side of the heat dissipation bracket, there are fixed four fixing components. Inside each fixing component, there is opened a T-shaped slot at the upper part. Inside the two corresponding slots, there is fittingly inserted a baffle component. The inner side of the baffle component contacts the outer side of the heat dissipation element and blocks the heat dissipation element.

[0008] An experimental article placement bracket includes: a bracket; The bracket is located at the side of the oven body. At the front end of the bracket, there is a guiding round rod. The outer part of the round rod is sleeved with a spring. At the corner position of the bracket, there is a ring. Inside the front end of both sides of the bracket, there is inserted an L-shaped inserting rod. Between the two inserting rods, there is connected by a cross bar. At both ends of the cross bar, there are collar rings. The collar rings are sleeved on the round rod and move. The side of the collar ring contacts the spring. The bracket is connected with a splicing structure through a vertical rod and a bottom plate. The splicing structure is connected with a sealing structure through a plugging groove. The sealing structure drives the bracket to move together. After the sealing structure at the side of the oven body is closed, the bracket is inside the oven body. At the bottom of the sealing structure, there are rotating wheels for movement. On both inner sides of the sealing structure for closing, there are evenly arranged limiting holes. The inserting rod is inserted into the limiting holes. On the side of the sealing structure, there is a clamping groove. Inside the clamping groove, there is inserted a fixing component.

[0009] In at least some embodiments, a vertical rod is inserted inside the collar and can freely slide up and down outside the vertical rod. There are a total of six vertical rods. The bottoms of the three vertical rods on the same side are welded and fixed to the bottom plate. The front end of the bottom plate is welded and fixed to the splicing structure. A plug-in plate is welded and fixed between two splicing structures with an L-shaped structure at the front end. The inner end of the bottom plate is fixed with a connector by bolts and drives the connector to displace together. Three support structures with a T-shaped structure are fitted and inserted inside the plug-in plate. The support structures are welded and fixed to the inner side of the sealing structure. Two L-shaped plug-in slots are provided on the inner side of the sealing structure. The splicing structure is inserted inside the plug-in slots. At both ends of the inner bottom of the sealing structure, a pull rod with a T-shaped shaft structure is fixed by threaded holes. The pull rod is inserted inside the oven body and can be freely pulled.

[0010] The present invention provides an experimental article placement bracket and an oven for laboratory use, having the following beneficial effects:

[0011] 1. The bracket is connected to the vertical rod, and then the bracket is inserted into the limit hole through the plug rod, so that the bracket can be controlled to be used at different heights, and the number of brackets used can be freely added, improving the flexibility during use. The bracket can be freely disassembled and removed, facilitating removal for cleaning and maintenance. Moreover, after the sealing structure drives the bracket and the experimental article out, the experimental article will be exposed outside, facilitating heat dissipation.

[0012] 2. The scraping component can be connected to the connector through the connecting component. Since the connector is connected to the bottom plate, after the sealing structure is opened, it drives the connecting component and the connector to move together, and at the same time drives the scraping component to move together. The outside of the scraping component fits and displaces with the inner wall of the oven body, scraping off the residues and dirt, and the dirt and residues in the gaps and corner positions can also be removed, improving the cleaning efficiency. While the scraping component is moving, the contact part can assist in wiping and cleaning the dirt, improving the cleaning effect.

[0013] 3. After the sealing structure is closed, the heat dissipation bracket is controlled to be embedded inside the outer groove, so that the heat dissipation part operates, and the airflow is controlled to flow inside the circulation groove and the heat dissipation groove, improving the heat dissipation efficiency of the oven body itself. After the sealing structure is opened, the heat dissipation bracket is driven to move together through the fixing part and the positioning plate. The heat dissipation bracket drives the heat dissipation part to be used on the side of the bracket. After the heat dissipation part operates, the experimental article is dissipated by the wind, improving the cooling efficiency of the experimental article. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0015] The drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0016] In the drawings:

[0017] Figure 1 Shows a three-dimensional structural schematic diagram of the present application;

[0018] Figure 2 Shows a three-dimensional structural schematic diagram of the closed state of the present application;

[0019] Figure 3 Shows a disassembled three-dimensional structural schematic diagram of the present application;

[0020] Figure 4 Shows an exploded disassembled three-dimensional structural schematic diagram of the present application;

[0021] Figure 5 Shows a partial cross-sectional view from below and a partially enlarged structural schematic diagram of the oven body of the present application;

[0022] Figure 6 Shows a disassembled three-dimensional structural schematic diagram of the heat dissipation bracket of the present application;

[0023] Figure 7 Shows a three-dimensional structural schematic diagram of the bracket of the present application;

[0024] Figure 8 Shows a disassembled three-dimensional and partial cross-sectional structural schematic diagram of the bracket of the present application.

[0025] List of reference numerals

[0026] 1. Oven body; 101. Guide groove; 102. Outer groove; 103. Slide block; 104. Scraping component; 105. Contact member; 106. Guide rod; 107. Connection component; 108. Connector;

[0027] 2. Heat dissipation bracket; 201. Embedded groove; 202. Positioning plate; 203. Pushing component; 204. Fixing component; 205. Fixing piece; 206. Slot; 207. Heat dissipation piece; 208. Baffle component;

[0028] 3. Bracket; 301. Plug rod; 302. Bottom plate; 303. Splicing structure; 304. Plug-in plate; 305. Support structure; 306. Sealing structure; 307. Plug-in slot; 308. Pull rod. Detailed implementation manners

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figures 1 to 8 :

[0031] The present invention provides an oven for laboratory use, including an oven body 1; a controller and control buttons are arranged on the left side of the oven body 1, and a scraping component 104 with a U-shaped structure is installed inside the oven body 1 and freely slides back and forth inside the oven body 1, fitting the displacement inside the oven body 1 to remove residual dirt and residues, improving the cleaning efficiency. The front cross-section of the scraping component 104 is an inclined structure and fits and moves along the inner wall of the oven body 1. A contact member 105 with a U-shaped structure is adhesively bonded to the outside of the scraping component 104. The contact member 105 made of sponge moves together with the scraping component 104 and wipes the inner wall of the oven body 1 in a fitting manner, improving the cleaning effect; a heat dissipation bracket 2; two heat dissipation brackets 2 are installed on the right side of the oven body 1. A heat dissipation element 207 is installed inside the heat dissipation bracket 2 through an embedding groove 201 and drives the heat dissipation element 207 to move together, driving the heat dissipation element 207 to move to the side of the oven body 1 so that the heat dissipation element 207 dissipates heat from the experimental product, improving the heat dissipation efficiency. A positioning plate 202 is fixed to the outer end of the heat dissipation bracket 2, and a fixing component 204 for connection is inserted into the positioning plate 202. The inner side of the fixing component 204 with a T-shaped structure is an arc-shaped structure and is inserted into the card slot of the sealing structure 306, enabling the heat dissipation bracket 2 to move flexibly together with the sealing structure 306 for use.

[0032] In the embodiment of the present disclosure, as Figure 3 and Figure 5 shown, two guiding grooves 101 for guiding are respectively arranged on both sides of the inner top of the oven body 1. A sliding block 103 is inserted to control the smooth guiding displacement of the scraping component 104. The two L-shaped guiding grooves 101 are symmetrically arranged. Two T-shaped outer grooves 102 are arranged on the right side of the oven body 1. A flow-through groove communicating with the inside of the oven body 1 is arranged inside the outer groove 102. A heat dissipation groove is arranged on the left side of the oven body 1. The flow-through groove is communicated with the heat dissipation groove. The heat dissipation bracket 2 is inserted into the outer groove 102 and can be freely pulled in and out inside the heat dissipation bracket 2, enabling the heat dissipation bracket 2 to freely adjust the use position; the sliding block 103 is inserted into the guiding groove 101 and can freely slide inside the guiding groove 101. The two L-shaped sliding blocks 103 are symmetrically fixed at both upper ends of the scraping component 104. A guiding rod 106 for guiding is respectively fixed at the included angle positions on both sides inside the scraping component 104 to control the up-and-down guiding displacement of the connecting component 107; the connecting component 107 is sleeved outside the guiding rod 106 and can freely slide outside the guiding rod 106. A pulling plate for control is arranged inside the connecting component 107 to pull the connecting component 107 to displace. The bottom of the outer end of the connecting component 107 is a cylindrical structure, and the outer end of the connecting component 107 is inserted into the top inner part of the connecting head 108 and is flexibly connected with the connecting head 108 for use.

[0033] In the present disclosure, Figure 4 and Figure 6 As shown, an embedding groove 201 is provided inside the heat dissipation bracket 2, and four circular holes are provided on the inner side of the embedding groove 201. The positions of the circular holes correspond to the positions of the heat dissipation element 207, so that the wind emitted by the heat dissipation element 207 enters the inner part of the oven body 1 for heat dissipation. An L-shaped pushing component 203 is fixed to the side of the positioning plate 202. The pushing component 203 made of elastic metal is fitted and connected with the fixing component 204, and the fixing component 204 is continuously pushed to be inserted into the inner part of the card slot for fixing; four fixing components 205 are fixed on the outer side of the heat dissipation bracket 2, and a T-shaped slot 206 is provided on the upper inner side of each fixing component 205. A baffle component 208 is fitted and inserted into the two slots 206 at the corresponding positions, and the inner side of the baffle component 208 contacts the outer side of the heat dissipation element 207 and blocks the heat dissipation element 207, so that the heat dissipation element 207 is conveniently fixed and disassembled.

[0034] A bracket for placing experimental products, comprising: a bracket 3; the bracket 3 is located at the side of the oven body 1, the front end of the bracket 3 is provided with a round rod for guidance, the outside of the round rod is sleeved with a spring, which continuously pushes the ring to move, so that the insertion rod 301 is inserted into the limiting holes at different heights, so that the bracket 3 is fixed at different heights for use, thereby improving the flexibility of the bracket 3 when used, and the corners of the bracket 3 are provided with round rings, and the front sides of the bracket 3 are inserted with L-shaped insertion rods 301, and the two insertion rods 301 are connected by a cross bar to facilitate the control of displacement, and the two ends of the cross bar are provided with rings, which are sleeved on the outside of the round rod for movement, and the side of the ring is in contact with the spring, the bracket 3 is connected to the splicing structure 303 through the vertical rod and the bottom plate 302, and the splicing structure 303 is connected with the splicing structure 303 through the plug groove 307 The sealing structure 306 is connected, and the sealing structure 306 drives the bracket 3 to move together. After the sealing structure 306 is closed on the side of the oven body 1, the bracket 3 is inside the oven body 1. The sealing structure 306 drives the bracket 3 to move freely. The bottom of the sealing structure 306 is provided with a rotating wheel for movement, which is used to smoothly contact and rotate with the placement surface. The inner sides of the sealing structure 306 for closure are provided with evenly arranged limiting holes, and the insertion rod 301 is inserted into the inside of the limiting hole to fix the insertion rod 301 and the bracket 3 at the required height for use. The side of the sealing structure 306 is provided with a slot, and the fixing component 204 is inserted into the inside of the slot, which is firmly connected to the fixing component 204 and the heat dissipation bracket 2, so that the sealing structure 306 drives the heat dissipation bracket 2 to move together.

[0035] In the present disclosure, Figure 7 and Figure 8As shown, a vertical rod is inserted inside the collar and can slide freely up and down outside the vertical rod, enabling the bracket 3 to be adjusted in height freely for use. There are a total of six vertical rods. The bottoms of the three vertical rods on the same side are welded and fixed to the bottom plate 302. The front end of the bottom plate 302 is welded and fixed to the splicing structure 303. A plug-in board 304 is welded and fixed between two splicing structures 303 with an L-shaped structure at the front end for splicing with the plug-in slot 307. The inner end of the bottom plate 302 is fixed with a connecting head 108 by bolts, driving the connecting head 108 to displace together and driving the scraping component 104 to move together. Three support structures 305 with a T-shaped structure are fitted and inserted inside the plug-in board 304. The support structures 305 are welded and fixed to the inner side of the sealing structure 306, enabling the plug-in board 304 to drive the bottom plate 302 and the splicing structure 303 to be spliced conveniently and facilitating complete disassembly for maintenance. There are two plug-in slots 307 with an L-shaped structure on the inner side of the sealing structure 306. The splicing structure 303 is inserted inside the plug-in slot 307. At both ends of the inner bottom of the sealing structure 306, a pull rod 308 with a T-shaped shaft structure is fixed by threaded holes, facilitating the disassembly of the pull rod 308. The pull rod 308 is inserted inside the oven body 1 and can be pulled freely, driving the sealing structure 306 to be pulled and guided for use.

[0036] The working principle of this embodiment: When it is necessary to dry the experimental product, first control the oven body 1 to be placed at the position where it is needed, then pull the sealing structure 306 to move and open, driving the bracket 3 to move together. Then, according to the usage requirements, control an appropriate number of brackets 3 to be installed and used, insert the vertical rod into the inside of the ring, and then control the insertion rod 301 to be inserted into the limit hole at an appropriate height to fix the bracket 3 at different heights for use, improving the flexibility during use. Then, control the experimental product to be dried to be placed inside the bracket 3, and then control the sealing structure 306 to close to seal the experimental product. Then, operate the oven body 1 to run, enabling the entire oven body 1 to run to dry the experimental product. At the same time, control the heat dissipation component 207 to run, so that the wind dissipated by the heat dissipation component 207 passes through the circulation groove and the heat dissipation groove, improving the heat dissipation effect of the oven body 1. After drying is completed, pull the sealing structure 306 to move outwards, driving the experimental product to be taken out together. When the sealing structure 306 displaces, it drives the connection component 107 and the scraping component 104 to displace together through the connecting head 108. At the same time, the sealing structure 306 drives the heat dissipation bracket 2 to displace through the fixing component 204 and the card slot, enabling the heat dissipation bracket 2 to be at the front end of the oven body 1. When the scraping component 104 displaces, it scrapes off the residues and dirt at the corner and included angle positions inside the oven body 1, and then wipes and cleans through the contact part 105 to improve the cleaning effect. When the heat dissipation bracket 2 is at the front end of the oven body 1, the heat dissipation component 207 operates to quickly dissipate heat from the experimental product, improving the heat dissipation efficiency and the drying efficiency.

[0037] In this article, the following points need attention:

[0038] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0039] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0040] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A laboratory oven, characterized in that: The invention comprises an oven body (1) and a bracket (3); a controller and a control button are arranged on the left side of the oven body (1); a scraping assembly (104) of a U-shaped structure is installed inside the oven body (1) and can slide freely forward and backward inside the oven body (1); the front end cross section of the scraping assembly (104) is an inclined structure; a contact piece (105) of a U-shaped structure is bonded to the outside of the scraping assembly (104); the contact piece (105) of a sponge material moves with the scraping assembly (104); a heat dissipation bracket (2); two heat dissipation brackets (2) are installed on the right side of the oven body (1); the inside of the heat dissipation bracket (2) is installed on the heat dissipation element (207) through an embedding groove (201) and drives the heat dissipation element (207) to move together; a positioning plate (202) is fixed to the outer end of the heat dissipation bracket (2); a fixing component (204) for connection is inserted into the inside of the positioning plate (202); and the inside of the fixing component (204) of the T-shaped structure is an arc-shaped structure; A guide groove (101) is provided on both sides of the top of the oven body (1), the two guide grooves (101) being symmetrically arranged in an L-shaped structure; two outer grooves (102) being provided on the right side of the oven body (1); a flow groove communicating with the interior of the oven body (1) is provided inside the outer groove (102); a heat dissipation groove is provided on the left side of the oven body (1); the flow groove is communicated with the heat dissipation groove; a heat dissipation bracket (2) is inserted into the interior of the outer groove (102) and can be freely drawn inside the heat dissipation bracket (2); A slider (103) is inserted into the guide groove (101) and slides freely inside the guide groove (101); two L-shaped sliders (103) are symmetrically fixed at the upper ends of the scraping assembly (104); and a guide rod (106) for guiding is respectively fixed at an angle position on both sides of the scraping assembly (104); The guide rod (106) is sleeved with a connecting assembly (107) on its exterior and is freely slidable on the exterior of the guide rod (106); a pull plate for manipulation is provided on the interior of the connecting assembly (107); the bottom of the outer end of the connecting assembly (107) is a cylindrical structure; the outer end of the connecting assembly (107) is inserted into the interior of the top end of the connector (108); The bracket (3) is located on the side of the oven body (1); a round rod for guiding is provided at the front end of the bracket (3); a spring is sleeved on the outside of the round rod; a round ring is provided at the corner of the bracket (3); L-shaped plug rods (301) are inserted into the inside of both sides of the front end of the bracket (3); the two plug rods (301) are connected by a cross bar; sleeve rings are provided at both ends of the cross bar; the sleeve rings are sleeved on the outside of the round rod and move; the side of the sleeve ring contacts the spring; the bracket (3) is connected to the splicing structure (303) through the vertical rod and the bottom plate (302); the splicing structure (303) is inserted into the inside of the two sides of the front end of the bracket (3); The connection groove (307) is connected to the sealing structure (306), and the sealing structure (306) drives the bracket (3) to move together. After the sealing structure (306) is located at the side of the oven body (1) and is closed, the bracket (3) is located inside the oven body (1). A rotating wheel for movement is provided at the bottom of the sealing structure (306), and evenly arranged limiting holes are provided on both sides of the inner side of the sealing structure (306) for sealing. The insertion rod (301) is inserted into the inside of the limiting hole. A slot is provided on the side of the sealing structure (306), and a fixing component (204) is inserted into the inside of the slot. After the sealing structure (306) is opened, it drives the scraping component (104) to move together; After the sealing structure (306) is opened, it drives the heat dissipation bracket (2) to move together, and the heat dissipation bracket (2) drives the heat dissipation element (207) to be located on the side of the bracket (3).

2. A laboratory oven according to claim 1, characterized in that: An embedding groove (201) is provided inside the heat dissipation bracket (2), and four circular holes are provided inside the embedding groove (201), the positions of the circular holes correspond to the positions of the heat dissipation element (207), and a pushing component (203) with an L-shaped structure is fixed to the side of the positioning plate (202), and the pushing component (203) made of elastic metal material is fitted and connected with the fixing component (204).

3. A laboratory oven according to claim 2, characterized in that: Four fixing members (205) are fixed to the outside of the heat dissipation bracket (2), and a slot (206) with a T-shaped structure is provided on the upper part of each fixing member (205). A baffle member (208) is inserted into two corresponding slots (206), and the inner side of the baffle member (208) contacts the outer side of the heat dissipation member (207) and blocks the heat dissipation member (207).

4. A laboratory oven according to claim 1, characterized in that: A vertical rod is inserted into the interior of the collar and freely slides up and down on the exterior of the vertical rod. A total of six vertical rods are provided. The bottoms of three vertical rods on the same side are welded and fixed to the bottom plate (302). The front end of the bottom plate (302) is welded and fixed to the splicing structure (303). A plug-in board (304) is welded and fixed between two splicing structures (303) with L-shaped front ends.

5. A laboratory oven according to claim 4, characterized in that: The inner end of the bottom plate (302) is fixed with a connector (108) by means of bolts, and drives the connector (108) to move together. The interior of the plug-in board (304) is fitted with three T-shaped support structures (305), and the support structures (305) are welded and fixed to the inner side of the sealing structure (306).

6. A laboratory oven according to claim 5, characterized in that: The inner side of the sealing structure (306) is provided with two L-shaped plug-in grooves (307), the splicing structure (303) is inserted into the plug-in grooves (307), and threaded holes at both ends of the inner bottom of the sealing structure (306) are respectively used to fix a pull-out rod (308) with a T-shaped shaft structure, and the pull-out rod (308) is inserted into the interior of the oven body (1) and can be pulled out freely.

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