A heating and cooling integrated fireplace and a control method thereof
By employing a dual-authentication opening system and sealing mechanism, the safety hazards caused by the ease of operation of integrated heating and cooling fireplaces are resolved, achieving safe and reliable fireplace control. This ensures that only authorized users can adjust the fireplace status, improving safety and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENGZHOU JINGXIN ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-06-02
AI Technical Summary
The operating buttons and adjustment knobs of existing integrated heating and cooling fireplaces are easily accessible, leading to safety hazards and operational risks. In particular, children or unauthorized personnel may adjust them at will, causing safety accidents such as equipment overload, blockage, and fire.
The fireplace is opened and adjusted using a dual authentication system, which combines a specially designed embedded block and a rotating rod. Combined with a sealing mechanism and a lock system to prevent accidental operation, it ensures that only authorized users can open the fireplace.
It effectively prevents children or unauthorized personnel from operating the equipment, improving its safety and stability, ensuring optimal ventilation in any location, and reducing safety risks caused by misoperation.
Smart Images

Figure CN120777610B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of fireplace technology, and more specifically, to a combined heating and cooling fireplace and its control method. Background Technology
[0002] In modern home environments, integrated heating and cooling fireplaces, as a multi-functional temperature control device, are gradually becoming an ideal choice for home users due to their dual functions of heating in winter and cooling in summer. Compared with traditional split air conditioning systems, integrated heating and cooling fireplaces have significant differences in installation location. Traditional air conditioners are usually installed high on the wall or in the ceiling area, far from the ground, making it difficult for ordinary people, especially children, to directly access the control panel and air inlet / outlet. However, due to their design features and aesthetic considerations, integrated heating and cooling fireplaces are usually installed in lower positions in indoor spaces such as living rooms and bedrooms, such as below the wall, near the floor, or embedded in low niches. While this low installation method facilitates maintenance and operation, it also places the various operation buttons, adjustment knobs, and other key parts of the device within easy reach of anyone, including family members, visitors, and even young children.
[0003] This easily accessible installation presents serious safety hazards and operational risks. Due to the lack of effective access control mechanisms, anyone can freely operate various functions of the fireplace, including temperature adjustment, fan speed control, and mode switching. Improper operation may lead to a variety of dangerous situations: First, frequent and arbitrary adjustments may cause the equipment to operate within unreasonable parameter ranges, resulting in overload of the internal heat exchanger and abnormal operation of the fan system. Second, personnel unfamiliar with the equipment's working principles may incorrectly adjust the direction of the air inlet and outlet or block the ventilation path, causing poor air circulation and leading to problems such as excessively high internal temperature and abnormal pressure. These blockages not only affect the normal operating efficiency of the equipment and reduce its cooling and heating effects, but may also cause serious safety accidents such as overheating, short circuits, or even fires, posing a direct threat to the lives and property of family members. Summary of the Invention
[0004] (a) Technical problems to be solved
[0005] In view of the problems existing in the prior art, the present invention provides a combined heating and cooling fireplace and its control method to solve the technical problems mentioned in the background art.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, the present invention provides the following technical solution: a combined heating and cooling fireplace, comprising a fireplace body fixedly mounted and a fixed frame mounted on the fireplace body; further comprising a sealing mechanism, the sealing mechanism comprising an installation tube fixedly mounted on the fixed frame, a push rod slidably mounted inside the installation tube, an internal rod slidably mounted inside the push rod, a connecting rod coaxially mounted on the internal rod, a plurality of recessed slots equally spaced on the side of the push rod near the connecting rod, a plurality of recessed blocks slidably mounted in the recessed slots, an axial rod mounted on each recessed block, an axial disc coaxially mounted on the plurality of axial rods, a central rod rotatably mounted inside the axial disc, a rotating rod coaxially mounted on the central rod, a hexagonal slot opened on the connecting rod, and the rotating rod inserted into the hexagonal slot; further comprising a rotating mechanism, the rotating mechanism comprising a plurality of inclined platforms equally spaced inside the installation tube.
[0008] Preferably, the sealing mechanism further includes a rotating disk coaxially mounted on the intermediate rod, and two limiting disks are equally spaced on the intermediate rod, with the two limiting disks respectively abutting against both sides of the axial disk.
[0009] Preferably, multiple guide rods are installed at equal intervals on the side wall of the push rod, and multiple guide grooves corresponding to the guide rods are opened in the mounting tube, with the guide rods slidably connected in the guide grooves.
[0010] Preferably, a plurality of closed leaves are rotatably mounted at equal intervals on the fixed frame, and a follower plate is fixedly mounted on each of the plurality of closed leaves, and a synchronization plate is rotatably connected to each of the plurality of follower plates.
[0011] Preferably, a tension spring is installed at the lower end of the synchronization plate, and the other end of the tension spring is connected to the fixed frame. A semi-circular groove is provided on the push rod, and a ball is rotatably installed in the semi-circular groove, with the ball abutting against the middle position of the synchronization plate.
[0012] Preferably, the rotating mechanism further includes inclined blocks slidably connected to the inclined platform, and multiple telescopic rods are installed at equal intervals on each inclined block. Multiple side grooves corresponding to the telescopic rods are opened on the side wall of the push rod, and the telescopic rods are slidably connected in the side grooves.
[0013] Preferably, the internal rod has multiple variable pitch slots at equal intervals corresponding to the inclined blocks, and multiple telescopic rods on each inclined block abut against the variable pitch slots.
[0014] Preferably, multiple anti-slip strips are installed at equal intervals on the multiple variable pitch grooves, and the multiple telescopic rods abut against the anti-slip strips respectively.
[0015] Preferably, each of the telescopic rods has a rounded corner.
[0016] This invention provides a method for controlling an integrated heating and cooling fireplace, comprising the following steps:
[0017] Sealing status and safety protection
[0018] When the fireplace is not in use, the device remains in a secure, sealed state. Multiple sealing blades are tightly closed under the continuous action of tension springs, forming a complete protective barrier to prevent dust and foreign objects from entering the fireplace. It also prevents children from putting their hands or objects inside. Even if someone attempts to temporarily open these blades with external force, the tension springs will immediately return the blades to the sealed position once the force is removed, ensuring the fireplace's continuous protection. This automatic reset function requires no additional user intervention, providing 24 / 7 safety for the family.
[0019] Authorization activation and adjustment operations
[0020] When the fireplace needs to be used, authorized users need to prepare two key elements: a dedicated insert and a rotating rod. First, insert the insert into the groove on the push rod, and simultaneously insert the rotating rod into the hexagonal groove on the connecting rod, completing the double authentication preparation. Next, the user rotates the rotating disc and pushes it forward, causing the push rod to move forward and move the internal ball to contact the synchronization plate. As the push rod moves, the synchronization plate causes multiple follower plates to lift upward, thereby gradually opening the closed blades and revealing the fireplace's operating interface. Users can adjust the opening degree as needed, and the fireplace remains stable in any position without changing its position due to external interference, achieving precise control of the opening state.
[0021] Safety Lock and Reset
[0022] After use, the user can restore the fireplace to a sealed state by reversing the operation. First, rotate the rotating disc in the reverse direction to disengage the telescopic rod from the pitch groove. At the same time, the force of the tension spring will automatically pull the synchronizing plate back to its original position, causing the sealing blades to close again. After completing the closing operation, the user needs to pull the insert block out of the insert groove and remove the rotating rod from the hexagonal slot, taking these two key operating components with them. At this point, even if someone tries to open the fireplace by pushing the connecting rod, the push rod cannot move due to the lack of rotational operation, and the sealing blades cannot open. This design ensures that only authorized users with both operating components can complete the fireplace opening operation, fundamentally guaranteeing safety.
[0023] (III) Beneficial Effects
[0024] Compared with the prior art, the present invention provides a combined heating and cooling fireplace and its control method, which has the following beneficial effects:
[0025] This integrated heating and cooling fireplace features an innovative sealing mechanism for enhanced safety. Its most notable feature is its unique dual-authentication opening system, requiring the operator to possess two key elements to operate: a specially designed embedded block component and a dedicated rotating rod. These two elements must be inserted simultaneously and operate in tandem to open the fireplace. This design, similar to the dual-key authentication mechanism of a modern financial safe, effectively prevents unauthorized operation by children or other individuals, significantly improving the safety of the device. Parents can safeguard these key components, ensuring that only adults with full operating authority can adjust the fireplace, fundamentally eliminating safety hazards caused by unauthorized operation.
[0026] The fireplace's sealing mechanism features a stepless adjustment design, allowing users to flexibly control the opening degree of the sealing blades according to actual needs. Through the rotation and pushing operation of the rotating disc, the ball precisely controls the position of the synchronization plate, thereby affecting the opening angle of the follower plate and the sealing blades. More importantly, the system has a self-locking function at any opening position. Once adjusted to the ideal position, the sealing blades can remain in that position even without external force. This multi-level adjustment capability allows the fireplace to achieve optimal ventilation in different seasons and usage scenarios, meeting usage needs while avoiding the safety risks caused by over-opening.
[0027] This fireplace employs an innovative anti-misoperation locking system. Through the precise coordination of the telescopic rod, the variable pitch groove, and the anti-slip strip, a reliable locking mechanism is achieved when the fireplace is open. After the operator completes the adjustment, the telescopic rod will firmly abut against the anti-slip strip of the variable pitch groove, forming a stable locked state under the continuous action of the tension spring. This locking mechanism can effectively resist the impact of accidental collisions or vibrations, ensuring that the open state of the fireplace will not change due to external interference. At the same time, the locking system also has an anti-slip design, so the locking effect will not be reduced due to wear even after long-term use, greatly improving the long-term safety and stability of the equipment. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the overall structure of a combined heating and cooling fireplace according to the present invention;
[0029] Figure 2 This is a schematic diagram of the structure of the fixing block and the closing leaf in this invention;
[0030] Figure 3 This is a schematic diagram of the structure of the closed leaf and the synchronization plate in this invention;
[0031] Figure 4 This is a schematic diagram of the mounting tube and push rod in this invention;
[0032] Figure 5This is a cross-sectional view of the mounting tube in this invention;
[0033] Figure 6 This is a schematic diagram of the rotating disk in this invention;
[0034] Figure 7 This is a schematic diagram of the axial disk structure in this invention;
[0035] Figure 8 This is a cross-sectional view of the push rod in this invention;
[0036] Figure 9 In this invention Figure 8 A cross-sectional structural diagram.
[0037] In the diagram: 11. Fireplace body; 12. Fixing frame; 21. Mounting tube; 22. Push rod; 23. Internal rod; 24. Connecting rod; 25. Embedded groove; 26. Embedded block; 27. Axial rod; 28. Axial disc; 29. Intermediate rod; 31. Inclined platform; 32. Inclined block; 33. Telescopic rod; 34. Side groove; 35. Variable pitch groove; 36. Anti-slip strip; 37. Rounded corner; 210. Rotating rod; 211. Hexagonal groove; 212. Rotating disc; 213. Limiting disc; 214. Guide rod; 215. Guide groove; 216. Sealing leaf; 217. Follower plate; 218. Synchronizing plate; 219. Tension spring; 220. Semicircular groove; 221. Rolling ball. Detailed Implementation
[0038] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0039] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0040] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.
[0041] Please see Figures 1 to 9A combined heating and cooling fireplace includes a fireplace body 11 fixedly mounted and a fixed frame 12 mounted on the fireplace body 11; it also includes a sealing mechanism, which includes a mounting tube 21 fixedly mounted on the fixed frame 12, a push rod 22 slidably mounted inside the mounting tube 21, an inner rod 23 slidably mounted inside the push rod 22, a connecting rod 24 coaxially mounted on the inner rod 23, a plurality of recessed slots 25 equally spaced on the side of the push rod 22 near the connecting rod 24, a plurality of recessed blocks 26 slidably mounted in the recessed slots 25, an axial rod 27 mounted on each recessed block 26, an axial disc 28 coaxially mounted on the plurality of axial rods 27, a middle rod 29 rotatably mounted inside the axial disc 28, a rotating rod 210 coaxially mounted on the middle rod 29, a hexagonal groove 211 opened on the connecting rod 24, and the rotating rod 210 inserted into the hexagonal groove 211. The sealing mechanism also includes a coaxially mounted... A rotating disk 212 is mounted on the intermediate rod 29. Two limiting disks 213 are equally spaced on the intermediate rod 29. The two limiting disks 213 are respectively attached to both sides of the axial disk 28. Multiple guide rods 214 are equally spaced on the side wall of the push rod 22. Multiple guide grooves 215 corresponding to the guide rods 214 are opened in the mounting tube 21. The guide rods 214 are slidably connected in the guide grooves 215. Multiple closing leaves 216 are rotatably mounted at equal intervals on the fixed frame 12. Each of the multiple closing leaves 216 is fixedly mounted with a follower plate 217. Each of the multiple follower plates 217 is rotatably connected with a synchronization plate 218. A tension spring 219 is installed at the lower end of the synchronization plate 218. The other end of the tension spring 219 is connected to the fixed frame 12. A semi-circular groove 220 is opened on the push rod 22. A ball 221 is rotatably mounted in the semi-circular groove 220. The ball 221 abuts against the middle position of the synchronization plate 218.
[0042] Since the fixed frame 12 is installed on the fireplace body 11, the synchronous plate 218 will move downward under the action of the tension spring 219. Then, multiple follower plates 217 will drive multiple sealing leaves 216 to stick together, and the two sealing leaves 216 at the head and tail will stick to the fixed frame 12 respectively. At this time, the sealing leaves 216 are continuously in a sealed state. When the sealing leaves 216 are forcibly opened by the outer wall, they will continue to be sealed as long as the external force is removed, thus ensuring the sealing effect. When it is necessary to continuously open, the rotating disk 212 is driven to rotate and push, so that the push rod 22 drives the ball 221 to move forward. The ball 221 abuts against the synchronous plate 218, so that the synchronous plate 218 drives multiple follower plates 217 to open, and then the sealing leaves 216 are unsealed, thus completing the unsealing process.
[0043] When opening, since the two limiting discs 213 are respectively attached to both ends of the axial disc 28, the inner blocks 26 are first inserted into the inner grooves 25, and then the axial disc 28 is rotated so that the inner blocks 26 are locked in the inner grooves 25. At the same time, the rotating rod 210 is inserted into the hexagonal groove 211, thus ensuring the synchronous rotation of the rotating disc 212 and the internal rod 23. At this time, the connection between the rotating rod 210 and the hexagonal groove 211 ensures circumferential rotation, and the connection between the inner blocks 26 and the inner groove 25 ensures axial movement. At this time, the rotation of the rotating disc 212 pushes, and since the telescopic rod 33 abuts against the pitch groove 35, the rotation of the internal rod 23 allows the telescopic rod 33 to move. 3. Push outward to expand it, and push the push rod 22 at the same time. Since the telescopic rod 33 is slidably connected in the side groove 34, the inclined block 32 will also expand along the inclined platform 31. Therefore, the operation of the two cooperates with each other. At this time, the ball 221 on the push rod 22 abuts against the synchronous plate 218 to push it outward. Since the tension spring 219 can apply a pushing force to the ball 221 in the direction of the connecting rod 24, and cannot apply a rotational torque, the telescopic rod 33 will be pressed against the variable pitch groove 35 to prevent it from retracting. Therefore, it can be fixed in any position, thus ensuring that the closed leaf 216 can be fixed in any position, improving the convenience of use. To untie it, the reverse operation process is required.
[0044] After adjustment, the insert 26 is pulled out from the insert slot 25. At this time, the rotating rod 210 is also pulled out from the hexagonal slot 211. Only the connecting rod 24 remains, which can be held. The position of the push rod 22 cannot be adjusted by pushing but not rotating, thus ensuring safety in use. Adjustment can only be achieved by the synchronous action of the insert 26 and the rotating rod 210, thereby improving safety in use.
[0045] The rotating mechanism includes multiple inclined platforms 31 installed at equal intervals within the mounting tube 21. It also includes inclined blocks 32 slidably connected to the inclined platforms 31. Multiple telescopic rods 33 are installed at equal intervals on each inclined block 32. Multiple side grooves 34 corresponding to the telescopic rods 33 are opened on the side wall of the push rod 22. The telescopic rods 33 are slidably connected within the side grooves 34. Multiple variable-pitch grooves 35 corresponding to the inclined blocks 32 are opened at equal intervals on the internal rod 23. The multiple telescopic rods 33 on each inclined block 32 abut against the variable-pitch grooves 35. Multiple anti-slip strips 36 are installed at equal intervals on the multiple variable-pitch grooves 35, and the multiple telescopic rods 33 abut against the anti-slip strips 36. Each telescopic rod 33 has a rounded corner 37.
[0046] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. 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 variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A combined heating and cooling fireplace, comprising a fireplace body (11) fixedly mounted and a fixed frame (12) mounted on the fireplace body (11); characterized in that: Also includes A sealing mechanism includes a mounting tube (21) fixedly mounted on the fixed frame (12). A push rod (22) is slidably mounted inside the mounting tube (21). An inner rod (23) is slidably mounted inside the push rod (22). A connecting rod (24) is coaxially mounted on the inner rod (23). Multiple recessed slots (25) are equally spaced on the side of the push rod (22) near the connecting rod (24). Multiple recessed blocks (26) are slidably mounted inside the recessed slots (25). An axial rod (27) is mounted on each recessed block (26). An axial disk (28) is coaxially mounted on the multiple axial rods (27). An intermediate rod (29) is rotatably mounted inside the axial disk (28). A rotating rod (210) is coaxially provided on the intermediate rod (29). A hexagonal groove (211) is provided on the connecting rod (24). The rotating rod (210) is inserted into the hexagonal groove (211). Two limiting discs (213) are provided at equal intervals on the intermediate rod (29). The two limiting discs (213) are respectively attached to both sides of the axial disc (28). Multiple closing leaves (216) are rotatably installed at equal intervals on the fixed frame (12). Each of the multiple closing leaves (216) is fixedly installed with a follower plate (217). Each of the multiple follower plates (217) is rotatably connected with a synchronization plate (218). A tension spring (219) is installed at the lower end of the synchronization plate (218). The other end of 219) is connected to the fixed frame (12). A semi-circular groove (220) is provided on the push rod (22). A ball (221) is rotatably installed in the semi-circular groove (220). The ball (221) abuts against the middle position of the synchronous plate (218). It also includes a rotating mechanism, which includes multiple inclined platforms (31) installed at equal intervals in the mounting tube (21). The rotating mechanism also includes inclined blocks (32) slidably connected to the inclined platforms (31). Multiple telescopic rods (33) are installed at equal intervals on each inclined block (32). Multiple side grooves (34) corresponding to the telescopic rods (33) are provided on the side wall of the push rod (22). The telescopic rods (33) The slide is connected in the side groove (34). Multiple variable pitch grooves (35) corresponding to the inclined blocks (32) are opened at equal intervals on the internal rod (23). Multiple telescopic rods (33) on each inclined block (32) abut against the variable pitch grooves (35). The axial disk is limited by two limiting disks set on the middle rod, so that the axial disk can rotate relative to the middle rod in the limiting space. Multiple closing leaves are set on the fixed frame. The closing leaves cooperate with the follower plate. The follower plate can be rotatably connected to the synchronous plate. A semi-circular groove is opened on the push rod and it is rotatably installed with the ball. The ball can abut against the synchronous plate. Through the above settings, when the push rod is pushed axially, the ball can push the synchronous plate, thereby realizing the opening control of the closing leaf.The synchronization plate is reset and the closing of the sealing blade is achieved by a tension spring mounted on the fixed frame at its lower end. The rotating mechanism, through the cooperation of the inclined block on the inclined platform with the telescopic rod and the pitch groove inside the internal rod, enables the push rod to move and position itself when the internal rod rotates, thus keeping the blade in an open state at a certain angle.
2. The integrated heating and cooling fireplace according to claim 1, characterized in that: The sealing mechanism also includes a rotating disk (212) coaxially mounted on the intermediate rod (29).
3. A combined heating and cooling fireplace according to claim 2, characterized in that: Multiple guide rods (214) are installed at equal intervals on the side wall of the push rod (22). Multiple guide grooves (215) corresponding to the guide rods (214) are opened in the mounting tube (21). The guide rods (214) are slidably connected in the guide grooves (215).
4. A combined heating and cooling fireplace according to claim 3, characterized in that: Multiple anti-slip strips (36) are installed at equal intervals on the multiple variable pitch grooves (35), and multiple telescopic rods (33) abut against the anti-slip strips (36).
5. A combined heating and cooling fireplace according to claim 4, characterized in that: Each of the telescopic rods (33) has a rounded corner (37).
6. A method for controlling an integrated heating and cooling fireplace, using the integrated heating and cooling fireplace described in claim 5, characterized in that: Includes the following steps: Sealing status and safety protection When the fireplace is not in use, the multiple closed blades (216) are tightly sealed under the continuous action of the tension spring (219), forming a complete protective barrier to prevent dust and foreign objects from entering the fireplace and to prevent children from putting their hands or objects inside. Once the external force is removed, the tension spring (219) will immediately return the blades to the sealed position to ensure the continuous protection of the fireplace. Authorization activation and adjustment operations When the fireplace needs to be used, the special insert (26) and rotating rod (210) are used. First, insert the insert (26) into the insert groove (25) on the push rod (22), and at the same time insert the rotating rod (210) into the hexagonal groove (211) of the connecting rod (24) to complete the double authentication preparation. Next, the user rotates the rotating disk (212) and pushes it forward to move the push rod (22) forward, causing the internal rolling ball (221) to abut against the synchronization plate (218). As the push rod (22) moves, the synchronization plate (218) drives multiple follower plates (217) to lift upward, thereby gradually opening the closed blade (216) to reveal the fireplace's operating interface. Safety Lock and Reset After use, the user can restore the fireplace to a sealed state by reversing the operation. First, rotate the rotating disk (212) in reverse so that the telescopic rod (33) exits from the pitch groove (35). At the same time, the force of the tension spring (219) will automatically pull the synchronization plate (218) back to its original position, causing the sealing leaf (216) to close again. After completing the closing operation, the user needs to pull the insert block (26) out of the insert groove (25) and take the rotating rod (210) out of the hexagonal groove (211) to take away these two key operating components. At this time, even if someone tries to open the fireplace by pushing the connecting rod (24), the push rod (22) cannot move due to the lack of rotation operation, and the sealing leaf (216) cannot be opened.
Citation Information
Patent Citations
Shutter fixing structure
CN223330466U