Heating plate suitable for vacuum drying oven

Abstract

The utility model belongs to the technical field of vacuum drying boxes, and particularly relates to a heating plate suitable for a vacuum drying box. The bottom plate corresponds to the lower portion of the heating plate body, and the two ends of the bottom plate extend outwards to form clamping edges used for clamping; the fixing mechanism comprises a positioning plate and a positioning pin, the positioning plate is correspondingly and fixedly arranged above the clamping edge in the first direction, the positioning pin is arranged on the positioning plate in a sliding mode and used for limiting the clamping edge, and the lower portion, perpendicular to the positioning plate, of the clamping edge is provided with a positioning hole allowing the positioning pin to be inserted and pulled out. A circular plate is fixedly connected with the positioning pin in the second direction perpendicular to the first direction, and the tension spring is arranged on the positioning pin in a stretchable and sleeving mode and fixedly connected with the circular plate and the positioning plate. The structure is simple, the design that the clamping edge slides into the clamping base to be matched with the positioning pin for automatic locking is adopted, accurate positioning can be completed without an additional fixing piece, the positioning pin is released only by pulling the pull ring in the disassembling process, and people can use the positioning pin conveniently.

Description

Technical Field

[0001] This utility model relates to the field of vacuum drying oven technology, and in particular to a heating plate suitable for vacuum drying ovens. Background Technology

[0002] Vacuum drying ovens are widely used in chemical, pharmaceutical, and food processing industries. Their core function is to lower the boiling point of materials through a vacuum environment and to efficiently dry them using heating plates. Currently, the heating plates in vacuum drying ovens typically use resistance wires or heating tubes as heating elements.

[0003] In existing technologies, heating plates are mostly fixed to the inner wall of the box by bolts, welding or complex sealing structures, which makes disassembly during maintenance and installation after maintenance cumbersome. Utility Model Content

[0004] The purpose of this invention is to solve the problems of existing technologies where heating plates are mostly fixed to the inner wall of the chamber by bolts, welding or complex sealing structures, which makes disassembly and reinstallation during maintenance cumbersome. The invention proposes a heating plate suitable for vacuum drying ovens.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A heating plate suitable for a vacuum drying oven, comprising:

[0007] Heating plate body;

[0008] The base plate, corresponding to the lower part of the heating plate, has snap-fit ​​edges extending outward at both ends for snapping;

[0009] The fixing mechanism includes a positioning plate fixedly disposed above the clamping edge along a first direction and a positioning pin slidably disposed on the positioning plate for limiting the clamping edge. The clamping edge has a positioning hole perpendicular to the bottom of the positioning plate for inserting and removing the positioning pin. A circular plate is fixedly connected to the positioning pin along a second direction perpendicular to the first direction, and a tension spring is stretched and sleeved on the positioning pin and fixedly connected to the circular plate and the positioning plate. A pull ring is fixedly disposed on the circular plate.

[0010] Furthermore, the base plate and the heating plate body are symmetrically provided with heating grooves that can accommodate heating tubes and semi-circular notches for wires to pass through. The semi-circular notches allow the wires to pass through, effectively improving the aesthetics after installation.

[0011] Furthermore, a fixed plate with a certain elasticity is fixedly provided at one end of the heating plate near the heating groove. A clamping block for squeezing and deforming the fixed plate is fixedly provided perpendicular to the first direction. An arc-shaped edge is provided at one corner of the bottom of the fixed plate away from the fixed plate.

[0012] Furthermore, the base plate is provided with a slot below the fixed plate and a hole on one side of the slot for limiting the card block. When the card block enters the slot, the card hole can be used to limit the card block.

[0013] Furthermore, the top of the heating plate body is connected to the heating tank and has heat outlet holes for uniform heating. The setting of heat outlet holes can quickly exhaust hot air and improve drying efficiency.

[0014] Compared with the prior art, the advantages of this utility model are:

[0015] 1. This solution utilizes the elastic snap-fit ​​structure of the card block and card slot to achieve tool-free quick installation and separation, reducing maintenance time;

[0016] 2. The heating element in this solution is designed with a uniform distribution of heating grooves and heat outlet holes, which allows heat to be quickly conducted into the vacuum drying oven, avoiding local overheating or temperature difference problems and improving the drying quality of the product. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0018] Figure 1 This is a schematic diagram of the structure of a heating plate suitable for a vacuum drying oven proposed in this utility model;

[0019] Figure 2 This is a side view of a heating plate suitable for a vacuum drying oven, as proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of part A of a heating plate suitable for a vacuum drying oven, as proposed in this utility model.

[0021] The correspondence between the numbers in the attached diagram is as follows:

[0022] 1. Base plate; 101. Edge clamping; 102. Heating groove; 103. Notch; 2. Heating plate body; 201. Fixing plate; 202. Clamping block; 203. Arc edge; 204. Clamping groove; 205. Clamping hole; 206. Heat outlet hole; 3. Positioning plate; 301. Positioning pin; 302. Tension spring; 303. Circular plate; 304. Pull ring. Detailed Implementation

[0023] 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.

[0024] Reference Figures 1-3 A heating plate suitable for a vacuum drying oven, comprising:

[0025] Heating plate 2;

[0026] The base plate 1 is located below the heating plate 2, and both ends of the base plate 1 have snap-fit ​​edges 101 for snap-fitting.

[0027] The fixing mechanism includes a positioning plate 3 fixedly mounted above the clamping edge 101 along a first direction, and a positioning pin 301 slidably mounted on the positioning plate 3 for limiting the clamping edge 101. The clamping edge 101 has a positioning hole perpendicular to the bottom of the positioning plate 3 for the positioning pin 301 to be inserted and removed. A circular plate 303 is fixedly connected to the positioning pin 301 along a second direction perpendicular to the first direction. A tension spring 302 is stretched and sleeved on the positioning pin 301 and fixedly connected to the circular plate 303 and the positioning plate 3. A pull ring 304 is fixedly mounted on the circular plate 303. The pull ring 304 pulls the circular plate 303 to move the positioning pin 301. The tension spring 302 stretches with the circular plate 303. The circular plate 303 drives the positioning pin 301 to disengage from the positioning hole. The base plate 1 can then be dragged to remove the clamping edge 101 from the pre-reserved clamping seat in the vacuum drying oven.

[0028] Preferably, the base plate 1 and the heating plate 2 are symmetrically provided with a heating groove 102 for accommodating the heating tube and a semi-circular notch 103 for the wires to pass through. The semi-circular notch 103 allows the wires to pass through, effectively improving the aesthetics after installation.

[0029] Preferably, a fixed plate 201 with a certain elasticity is fixed at one end of the heating plate 2 near the heating groove 102. A clamping block 202 that compresses and deforms the fixed plate 201 is fixed on the fixed plate 201 perpendicular to the first direction. An arc-shaped edge 203 is provided at one corner of the bottom of the fixed plate 201 away from the fixed plate 201. The arc-shaped edge 203 is provided so that the clamping block 202 is pressed against the corresponding clamping groove 204 when it moves downward.

[0030] Preferably, the base plate 1 is provided with a slot 204 and a hole 205 on one side of the slot 204 for limiting the card block 202. When the card block 202 enters the slot 204, the hole 205 can be used to limit the card block 202.

[0031] Preferably, the top of the heating plate 2 is connected to the heating tank 102 and has a heat outlet hole 206 for uniform heating. The heat outlet hole 206 can quickly exhaust hot air and improve drying efficiency.

[0032] The implementation principle of a heating plate suitable for a vacuum drying oven according to an embodiment of this application is as follows: When the heating plate body 2 needs to be installed in the vacuum drying oven, the operator can place the heating tube connected with the wire into the heating groove 102, and then press the heating plate body 2 down above the bottom plate 1, so that the arc-shaped edge 203 of the locking block 202 is pressed against the corresponding locking groove 204, causing the locking block 202 to drive the fixing plate 201 to produce a certain deformation. At the same time, the locking block 202 enters the locking groove 204 and continues to press the heating plate body 2. When the locking block 202 is aligned with the locking hole 205, the fixing plate 201 can be lifted by its own weight. The elastic reset of the plate causes the locking block 202 to engage with the locking hole 205, thus completing the installation between the heating plate 2 and the base plate 1. Then, the operator slides the locking edge 101 on the base plate 1 into the pre-reserved slot 204 or mounting base inside the vacuum drying oven. Simultaneously, the pull ring 304 pulls the circular plate 303, causing the positioning pin 301 to move. The tension spring 302 follows the stretching of the circular plate 303. When the positioning hole corresponding to the locking edge 101 in the mounting base inside the vacuum drying oven aligns, the pull ring 304 is released. The tension spring 302's own elasticity causes the circular plate 303 to move and reset, thus causing the circular plate 303 to engage with the mounting hole 205. The positioning pin 301 is inserted into the positioning hole reserved in the bracket and the positioning hole of the clamping edge 101 inside the vacuum drying oven, thereby achieving the effect of fixing the base plate 1, thus completing the installation. The heating tube placed in the heating tank 102 is electrically heated by an electric wire, and the heat is dissipated through the evenly distributed heat outlet holes 206 to evenly heat the products inside the vacuum drying oven. When maintenance or disassembly of the heating plate is required, the operator uses the pull ring 304 to pull the circular plate 303, causing the positioning pin 301 to move. The tension spring 302 follows the stretching of the circular plate 303, causing the circular plate 303 to disengage the positioning pin 301 from its positioning position. The hole allows the base plate 1 to be dragged to remove the retaining edge 101 from the pre-reserved retaining seat inside the vacuum drying oven, facilitating disassembly from the vacuum drying oven. When it is necessary to separate the heating plate 2 from the base plate 1, the operator can press the retaining block 202 to move it away from the retaining hole 205 and into the retaining groove 204, and then drag the heating plate 2 upwards to complete the disassembly between the base plate 1 and the heating plate 2. All structures in this application can be selected in terms of material and length according to actual use. The attached drawings are schematic structural diagrams, and the actual dimensions can be adjusted appropriately.

[0033] The above description is only a preferred embodiment of this practice, but the scope of protection of this embodiment is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in this embodiment, based on the technical solution and the inventive concept of this embodiment, should be covered within the scope of protection of this embodiment.

Claims

1. A heating plate for a vacuum drying oven, characterized in that, The utility model relates to a heating plate body, a bottom plate corresponding to the lower side of the heating plate body, two ends of the bottom plate extending outward for clamping, a fixing mechanism including a positioning plate corresponding to the upper side of the clamping edge and a positioning pin slidably arranged on the positioning plate for limiting the clamping edge, the clamping edge being provided with a positioning hole for inserting and pulling out the positioning pin vertically below the positioning plate, a round plate being fixedly connected with the positioning pin in the second direction perpendicular to the first direction, a tension spring being stretchably arranged on the positioning pin and fixedly connected with the round plate and the positioning plate, and a pull ring being fixedly arranged on the round plate. The bottom plate and the heating plate body are symmetrically provided with a heating groove capable of accommodating a heating pipe and a semicircular notch for passing through a circuit on the opposite side. The heating plate body is fixedly provided with a fixed plate with a certain elasticity near one end of the heating groove, the fixed plate is fixedly provided with a clamping block deforming the extrusion fixed plate vertically in the first direction, and the bottom of the fixed plate is provided with an arc-shaped edge away from a corner of the fixed plate. The bottom plate is provided with a clamping groove corresponding to the lower side of the fixed plate and a clamping hole provided on one side of the clamping groove for limiting the clamping block.

2. A heating plate for a vacuum drying oven according to claim 1, characterized in that The top of the heating plate body is communicated with the heating groove and has a heat outlet hole for uniform heating.

3. A heater plate for a vacuum drying cabinet according to claim 2, wherein, ​ 4. A heater plate for a vacuum drying cabinet according to claim 3, wherein ​ 5. A heater plate for a vacuum drying cabinet according to claim 2, wherein ​

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