Housing structure of water bath heat preservation pot
The mechanical linkage limit mechanism solves the problem of easy detachment of the water bath insulated pot cover, realizes stable locking and sealing of the cover, and improves the operational stability and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-06
- Publication Date
- 2026-03-31
AI Technical Summary
The existing cover structure of the water bath insulated pot is prone to detaching from the installation slot due to water vapor lubrication and external force during long-term use, resulting in sealing failure and equipment instability, affecting safety and performance.
The mechanical linkage limiting mechanism, which includes the cooperation of rectangular insert plate, roller and arc surface slider, combined with the elastic constraint of return spring, realizes bidirectional locking of the cover, enhancing stability and protection.
It effectively prevents the casing from sliding, improves the stability and safety of equipment operation, and maintains sealing performance to ensure ease of operation and visual monitoring.
Smart Images

Figure CN224057424U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermal cooker technology, specifically to a water bath thermal cooker cover structure. Background Technology
[0002] A water bath insulated cooker is a device that achieves uniform temperature control through water bath heating. It mainly consists of a cooker body, a heating system, a temperature control device, and a supporting container support. Its working principle involves placing the container to be heated inside the cooker cavity, which contains a heat-conducting medium. Circulating heating maintains a constant temperature for the medium, thus ensuring continuous heat preservation of the object. This equipment has significant application value in fields such as laboratory sample processing and constant-temperature food processing.
[0003] In existing technologies, detachable cover structures are commonly used to improve the thermal efficiency and operational safety of water bath insulated pots. The cover forms a closed space by covering the opening at the top of the pot, effectively reducing heat loss and preventing external impurities from entering the working area. This cover is typically designed to match the annular groove on the top of the pot, achieving positioning and installation through edge fitting. This adaptable structure maintains the overall appearance of the equipment while ensuring a tight seal between the cover and the pot, providing reliable scalding protection for operators.
[0004] However, due to the shallow depth of the annular groove, when water vapor generated during equipment operation condenses at the contact surface between the groove and the casing, it creates a lubricating effect, reducing the coefficient of friction. If the casing is accidentally touched by an operating tool or subjected to slight vibrations, the casing is prone to displacement along the groove. Especially in long-term continuous operation scenarios, repeated thermal expansion and contraction can further weaken structural stability, causing the casing to eventually detach from its mounting position and fall, resulting in casing deformation or seal failure, directly affecting the equipment's continuous performance and safety features. Utility Model Content
[0005] The purpose of this utility model is to provide a water bath insulated pot cover structure to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a water bath insulated pot cover structure, comprising: a pot body, an annular groove formed on the upper surface of the pot body, the annular groove being adapted to the bottom of the cover, rectangular grooves formed on the side walls of the cover, and limiting mechanisms for limiting the position of the cover provided on both sides of the pot body.
[0007] The limiting mechanism includes a rectangular insert plate that can move laterally. One side of the rectangular insert plate is slidably inserted into a rectangular groove, and the other side of the rectangular insert plate is fixedly connected to a limiting seat. A roller is rotatably installed at one end of the limiting seat. One side of the roller is slidably connected to a curved slider that can slide vertically. The curved slider is slidably installed in the support plate. The upper side of the contact surface between the curved slider and the roller is a concave arc surface, and the lower side of the contact surface between the curved slider and the roller is a convex arc surface. The support plate is fixedly connected to the side wall of the pot body. An adjustment component is provided at the bottom of the curved slider to adjust the vertical sliding of the curved slider.
[0008] Preferably, transparent plates are fixedly installed on both sides of the upper surface of the cover, and a handle is provided between the two transparent plates, with the bottom ends of the handle fixedly connected to the upper surface of the cover.
[0009] Preferably, a vent plate is fixedly installed in the middle of the transparent plate, and a dustproof mesh cover is provided on the upper side of the vent plate. The dustproof mesh cover is detachably connected to the transparent plate by bolts.
[0010] Preferably, a limit block is fixedly installed on one side of the top of the support plate, and the two side walls of the bottom of the support plate are welded to the side wall of the pot body by fixing rods.
[0011] Preferably, a limiting rod is slidably sleeved inside the limiting block. One end of the limiting rod is fixedly connected to the rectangular insert plate, and the other end of the limiting rod passes through the support plate and is fixedly connected to the support plate by a first reset spring. A limiting rail is provided between the two limiting blocks. One side of the limiting rail is slidably connected to the arc-shaped slider, and the other side of the limiting rail is fixedly connected to the support plate.
[0012] Preferably, the adjusting assembly includes a fixed seat, one side of which is fixedly connected to a support plate, and the other side of which is slidably connected to an adjusting rod. The adjusting rod and the fixed seat are fixedly connected by a second return spring.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This structure achieves a two-way locking function for the cover through a mechanical linkage limiting mechanism. The roller and the curved surface of the slider drive the insert plate to extend and retract laterally. Combined with the elastic constraint of the return spring, it forms a dual limiting effect of elastic pressing and rigid insertion of the cover, effectively eliminating the risk of cover slippage caused by water vapor lubrication or external force interference, and significantly improving the stability of equipment operation and the reliability of protection.
[0015] 2. The observable enclosure integrates a transparent window and a multi-stage ventilation system. While maintaining the sealing and heat preservation performance, it enables visual monitoring of the working status through a high-temperature resistant transparent panel. Combined with the detachable dustproof mesh and the venting holes, it ensures the safety of internal and external air pressure balance and prevents external pollution from entering, taking into account both operational convenience and the integrity of equipment functions. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a top view of the overall structure of this utility model;
[0018] Figure 3 This is a side view of the internal structure of this utility model;
[0019] Figure 4 This is a top view of the internal structure of this utility model.
[0020] In the diagram: 1. Pot body; 2. Annular groove; 3. Cover; 4. Rectangular groove; 5. Rectangular insert plate; 6. Limiting seat; 7. Roller; 8. Arc-shaped slider; 9. Support plate; 10. Transparent plate; 11. Handle; 12. Vent plate; 13. Dustproof mesh cover; 14. Limiting block; 15. Fixing rod; 16. First return spring; 17. Limiting rail; 18. Fixing seat; 19. Adjusting rod; 20. Second return spring; 21. Limiting rod. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0022] Example 1: Please refer to Figures 1-4This utility model provides a technical solution: a water bath insulated pot cover structure, including: a pot body 1, which is existing technology; a heating system, a temperature control device, and a matching container rack are installed inside the pot body 1; an annular groove 2 is formed on the upper surface of the pot body 1, which is adapted to the bottom of the cover 3; the fit between the annular groove 2 and the bottom of the cover 3 facilitates the closing of the cover 3; rectangular grooves 4 are formed on both side walls of the cover 3; and limiting mechanisms are provided on both sides of the pot body 1 for limiting the cover 3; the limiting mechanisms limit the cover 3 after it is closed, thereby preventing it from shifting or falling off; the limiting mechanisms include rectangular inserts that can move laterally. 5. A rectangular insert plate 5 is slidably inserted into a rectangular groove 4 on one side, and a limiting seat 6 is fixedly connected to the other side of the rectangular insert plate 5. A roller 7 is rotatably installed on one end of the limiting seat 6, and the limiting seat 6 provides limiting support for the roller 7. The roller 7 and the limiting seat 6 are rotatably connected by a limiting pin. One side of the roller 7 is slidably connected to a vertically sliding arc-shaped slider 8. The arc-shaped slider 8 is slidably installed in the support plate 9. The upper side of the contact surface between the arc-shaped slider 8 and the roller 7 is a concave arc surface, and the lower side of the contact surface between the arc-shaped slider 8 and the roller 7 is a convex arc surface. The support plate 9 is fixedly connected to the side wall of the pot body 1. An adjustment component is provided at the bottom of the arc-shaped slider 8 to adjust the vertical sliding of the arc-shaped slider 8.
[0023] In use, first adjust the position of the curved slider 8 using the adjustment component. The curved slider 8 moves downward, causing its concave surface to gradually slide against the roller 7. During this process, the roller 7 drives the limiting seat 6 to move synchronously, causing the limiting seat 6 to drive the rectangular insert plate 5 to move laterally away from the side wall of the pot body 1. Then, through the cooperation between the annular groove 2 and the cover 3, the bottom of the cover 3 is inserted into the annular groove 2, initially limiting the cover 3. Next, adjust the position of the curved slider 8 using the adjustment component, causing it to slide upward on the support plate 9. This allows the convex surface of the curved slider 8 to gradually slide against the roller 7, pushing the roller 7. This causes the roller 7 to drive the limiting seat 6 and the rectangular insert plate 5 to move synchronously. The rectangular insert plate 5 then inserts into the rectangular groove 4, further limiting the cover 3 and the pot body 1, preventing the cover 3 from falling off the mounting annular groove 2, causing shell deformation or sealing failure, which would directly affect the continuous performance and safety function of the equipment.
[0024] Example 2: Based on Example 1, transparent plates 10 are fixedly installed on both sides of the upper surface of the cover 3. The transparent plates 10 are made of high-temperature resistant material. The transparent plates 10 facilitate viewing the inside of the pot body 1 after the cover 3 is closed. A handle 11 is provided between the two transparent plates 10. The bottom ends of the handle 11 are fixedly connected to the upper surface of the cover 3. The handle 11 makes it easy to lift the cover 3 and remove it for subsequent operations. A vent plate 12 is fixedly installed in the middle of the transparent plate 10. A dustproof mesh cover 13 is provided on the upper side of the vent plate 12. The dustproof mesh cover 13 is detachably connected to the transparent plate 10 by bolts. By providing the vent plate 12, it is easy for gas to flow inside and outside the pot body 1, thereby avoiding excessive internal pressure and potential safety hazards. The dustproof mesh cover 13 on the vent plate 12 reduces the entry of impurities into the container inside the pot body 1.
[0025] Example 3: Based on Example 2, a limiting block 14 is fixedly installed on one side of the top of the support plate 9. The two bottom side walls of the support plate 9 are welded and fixed to the side walls of the pot body 1 through fixing rods 15, which provide stable support for the support plate 9. A limiting rod 21 is slidably sleeved inside the limiting block 14, limiting the limiting rod 21. One end of the limiting rod 21 is fixedly connected to the rectangular insert plate 5, and the other end of the limiting rod 21 passes through the support plate 9 and is fixedly connected to the support plate 9 through a first return spring 16. A spacer is provided between the two limiting blocks 14. A limiting rail 17 is slidably connected to the arc-shaped slider 8 on one side, limiting the movement of the slider 8 and improving its stability. The other side of the limiting rail 17 is fixedly connected to the support plate 9. The adjusting assembly includes a fixed seat 18, one side of which is fixedly connected to the support plate 9, and the other side of which is slidably connected to an adjusting rod 19. The adjusting rod 19 is sleeved inside the fixed seat 18, and the adjusting rod 19 and the fixed seat 18 are fixedly connected by a second return spring 20. The elastic force of the second return spring 20 is greater than that of the first return spring 16.
[0026] When the cover 3 needs to be covered, the adjusting rod 19 is pulled down to slide under the limit of the fixed seat 18. At the same time, the adjusting rod 19 will stretch the second return spring 20. The adjusting rod 19 will also pull the arc-shaped slider 8 to slide vertically downward within the limit rail 17. During this process, the concave arc surface of the arc-shaped slider 8 gradually slides between itself and the roller 7. The roller 7 drives the limit seat 6 to move synchronously, causing the limit seat 6 to drive the rectangular insert plate 5 to move. Under the limit of the limit rod 21 and the limit block 14, the rectangular insert plate 5 moves laterally away from the side wall of the pot body 1. At this time, the compressed first return spring 16 is also stretched. Then, the bottom of the cover 3 can be inserted through the cooperation between the annular groove 2 and the cover 3. Within the annular groove 2, the cover 3 is initially positioned. Then, the adjusting rod 19 is released, and under the reverse elastic force of the second return spring 20, the adjusting rod 19 pushes the arc-shaped slider 8 upward, causing the convex arc surface of the arc-shaped slider 8 to gradually slide between the roller 7, thereby pushing the roller 7. Simultaneously, under the reverse contraction of the first return spring 16, the roller 7 further drives the limiting seat 6 and the rectangular insert 5 to move synchronously. The rectangular insert 5 then inserts into the rectangular groove 4, further limiting the position between the cover 3 and the pot body 1, ensuring safety during use and preventing the cover 3 from being easily displaced along the annular groove 2 due to external forces such as accidental contact with operating tools or slight vibration of the equipment.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A water bath incubator cover shell structure comprising a pot body (1), characterized in that: The upper surface of the pot body (1) is provided with a ring groove (2), the ring groove (2) is matched with the bottom of the cover shell (3), the two side walls of the cover shell (3) are provided with rectangular grooves (4), and the two sides of the pot body (1) are provided with limiting mechanisms for limiting the cover shell (3). The limiting mechanism comprises a rectangular insertion plate (5) capable of moving horizontally, the rectangular insertion plate (5) is slidably connected with the rectangular groove (4) on one side, the other side of the rectangular insertion plate (5) is fixedly connected with a limiting seat (6), one end of the limiting seat (6) is rotatably connected with a roller (7), one side of the roller (7) is slidably connected with an arc-shaped sliding block (8) capable of vertically sliding, the arc-shaped sliding block (8) is slidably connected with the support plate (9), the upper side of the contact surface between the arc-shaped sliding block (8) and the roller (7) is a concave arc surface, the lower side of the contact surface between the arc-shaped sliding block (8) and the roller (7) is a convex arc surface, the support plate (9) is fixedly connected with the side wall of the pot body (1), and the bottom of the arc-shaped sliding block (8) is provided with an adjusting assembly capable of adjusting the vertical sliding of the arc-shaped sliding block (8).
2. The water bath incubator shell structure of claim 1, wherein: The upper surface of the cover shell (3) is fixedly connected with transparent plates (10) on both sides, a handle (11) is arranged between the two transparent plates (10), and both ends of the bottom of the handle (11) are fixedly connected with the upper surface of the cover shell (3).
3. The water bath incubator shell structure of claim 2, wherein: The middle part of the transparent plate (10) is fixedly connected with a vent hole plate (12), the upper side of the vent hole plate (12) is provided with a dust screen cover (13), and the dust screen cover (13) is detachably connected with the transparent plate (10) through bolts.
4. The water bath incubator shell structure of claim 1, wherein: The top of the support plate (9) is fixedly connected with a limiting block (14) on one side, and the bottom of the support plate (9) is fixedly connected with the side wall of the pot body (1) through the fixed rod (15).
5. The water bath incubator shell structure of claim 4, wherein: The limiting block (14) is slidably connected with a limiting rod (21), one end of the limiting rod (21) is fixedly connected with the rectangular insertion plate (5), the other end of the limiting rod (21) penetrates through the support plate (9) and is fixedly connected with the support plate (9) through the first reset spring (16), a limiting rail (17) is arranged between the two limiting blocks (14), one side of the limiting rail (17) is slidably connected with the arc-shaped sliding block (8), and the other side of the limiting rail (17) is fixedly connected with the support plate (9).
6. The water bath incubator shell structure of claim 1, wherein: The adjusting assembly comprises a fixed seat (18), one side of the fixed seat (18) is fixedly connected with the support plate (9), the other side of the fixed seat (18) is slidably connected with an adjusting rod (19), and the adjusting rod (19) and the fixed seat (18) are fixedly connected through the second reset spring (20).