A hinged chimney grille structure

Abstract

The application discloses a hinge type chimney grille structure, which comprises a grille main body installed on a chimney platform frame; the grille at a valve part and the chimney platform frame grille main body are connected through a hinge, so that the device can be operated to be opened and closed by one hand, and the opening angle can reach 180 degrees; the grille opening and closing angle is flexibly controlled through the hinge, and the grille is opened when maintenance operation is needed and is closed again after the maintenance operation is completed, so that the operation is flexible and convenient; in addition, a locking mechanism is additionally arranged, so that the closing stability and use safety of the grille structure are further improved on the basis of retaining the advantages of the basic grille structure, and the chimney platform scene with frequent personnel passing and accidental collision risks can be effectively prevented from the safety hidden danger caused by the accidental opening of the valve special grille plate, convenience and safety are considered, and the application range is wider.

Description

Technical Field

[0001] This invention relates to the field of hull grid cover technology, specifically a hinged chimney grid structure. Background Technology

[0002] Chimney grilles are generally fixed structures, secured with saddle clamps and bolts. While they provide basic protection, in practice, it has been found that when the grilles above the chimney valves need to be operated, inspected, adjusted, or disassembled, the operation is time-consuming and poses a risk of working at height.

[0003] Therefore, developing a chimney grille structure that can balance protection and safety with ease of operation and maintenance, structural stability, and smooth operation has become an urgent technical problem to be solved. Summary of the Invention

[0004] The purpose of this invention is to provide a hinged chimney grille structure to solve the problems existing in the operation of existing devices.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hinged chimney grille structure, comprising: The grille body is installed on the chimney platform frame; A hinge element, which is disposed on the grid body, is used to provide a rotatable hinge support point; A special grating plate for valve components is hinged inside the grating body via a hinge component. When closed, the grating plate forms a complete grating surface with the grating body to block the chimney platform opening. When open, it avoids the chimney valve components, so as to facilitate the inspection, maintenance and disassembly of the valve components. A locking mechanism is provided between the grille body and the valve-specific grille plate to securely lock the valve-specific grille plate in the closed state, preventing the valve-specific grille plate from being opened accidentally.

[0006] Furthermore, the interior of the grille body is provided with a positioning groove for installing a special grille plate for valve components, and a number of hinge grooves are provided on the top side of one side of the positioning groove for adapting to the installation of hinge components and providing installation space for them.

[0007] Furthermore, the hinge component includes a hinge shaft fixedly installed inside the hinge groove to provide a rotation axis. A connecting piece for connecting the hinge shaft and the valve-specific grid plate is rotatably installed on the outer surface of the hinge shaft. The other end of the connecting piece is fixedly connected to the valve-specific grid plate to enable the valve-specific grid plate to rotate flexibly around the hinge shaft.

[0008] Furthermore, the locking mechanism includes multiple sets of lock seat assemblies installed on the inner wall of one side of the positioning groove and multiple sets of lock tongues installed at corresponding positions on the bottom of the valve-specific grid plate.

[0009] Furthermore, the lock seat assembly includes a base installed on the inner wall of the positioning groove. A locking slider is slidably installed inside the base via a limiting mechanism. Locking tongue claws are movably connected to both sides of the top of the locking slider. A return spring is fixedly connected to one side of the bottom of the locking slider. A locking groove is formed on the other side of the bottom of the locking slider. The bottom of the return spring is fixedly connected to the bottom of the inner cavity of the base. A first guide block is fixedly connected to both sides of the bottom of the inner cavity of the locking groove. A second guide block is fixedly connected to the top of the inner cavity of the locking groove. A positioning lock block is fixedly connected to the middle of the inner cavity of the locking groove. A locking ring is also fixedly connected to the bottom of the inner cavity of the base.

[0010] Furthermore, a first guide groove is formed between the two first guide blocks to precisely define the vertical movement trajectory of the locking ring and prevent the locking ring from deviating during vertical movement.

[0011] Furthermore, a second guide groove is formed between the second guide block and the positioning lock block to provide a movement trajectory for the precise limiting lock ring during unlocking and to ensure smooth unlocking action.

[0012] Furthermore, the top of the positioning lock block is provided with a groove that is adapted to the locking ring and is used to achieve precise engagement and positioning of the locking ring and enhance locking stability.

[0013] Furthermore, the limiting mechanism includes a limiting groove formed on the side of the base and a limiting plate installed on the side of the locking slider. The limiting plate is slidably connected to the limiting groove to limit the locking slider to slide only vertically, so as to prevent it from shifting horizontally.

[0014] Furthermore, the top of the locking tongue claw and the locking slider are flexibly hinged, which is used to synchronously realize the radial opening and contraction of the locking tongue claw with the vertical movement of the locking slider.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention connects the grille at the valve component and the main body of the grille on the chimney platform frame via a hinge, allowing the device to be operated with one hand to open and close, with an opening angle of up to 180°. The hinge flexibly controls the opening and closing angle of the grille, allowing it to be opened for maintenance and closed again after maintenance, making operation flexible and convenient. In addition, by adding a locking mechanism, the closing stability and safety of the grille structure are further improved while retaining the advantages of the basic grille structure. This makes it suitable for chimney platform scenarios with frequent personnel passage and the risk of accidental collisions, effectively preventing safety hazards caused by accidental opening of the valve-specific grille plate. It balances convenience and safety, and has a wider range of applications. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the special grating plate and grating body of the present invention in the closed state; Figure 2 This is a top view of the entire invention; Figure 3 This is a schematic diagram of the valve-specific grating plate and the grating body in the open state in this invention; Figure 4 This is a schematic diagram of the connection between the valve-specific grille and the hinge component in this invention. Figure 5 This is a schematic diagram of the structure of the valve-specific grille plate and the locking tongue connection part in this invention; Figure 6 This is a schematic diagram of the structure of the grille body in this invention; Figure 7 This is a schematic diagram of the lock seat assembly in this invention; Figure 8 This is a front view of the lock seat assembly and the lock tongue in the unlocked state in this invention; Figure 9 This is a front view of the lock seat assembly and the lock tongue in the locked state in this invention; Figure 10 This is a schematic diagram of the internal structure of the lock seat assembly in this invention.

[0017] In the diagram: 1. Grille body; 101. Positioning groove; 102. Hinge groove; 2. Valve-specific grille plate; 3. Hinge component; 4. Lock seat assembly; 401. Base; 402. Locking slider; 403. Locking tongue claw; 404. Return spring; 405. Locking ring; 406. Locking groove; 407. First guide block; 408. Second guide block; 409. Positioning lock block; 410. Limiting plate; 411. Limiting groove; 5. Locking tongue. Detailed Implementation

[0018] The technical solutions 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 only some embodiments of the present invention, and not all embodiments.

[0019] Example 1 Please see Figure 1-6This invention provides a technical solution: a hinged chimney grille structure without a locking mechanism, comprising: a grille body 1, which is mounted on a chimney platform frame; a hinge component 3, which is disposed on the grille body 1 and provides a rotatable hinge support point; and a valve-specific grille plate 2, which is hinged inside the grille body 1 via the hinge component 3, and is used to form a complete grille surface with the grille body 1 in the closed state to block the chimney platform opening, and to avoid chimney valves in the open state, so as to facilitate the inspection, maintenance and disassembly of the valves. During installation, the main body 1 of the grille is first fixed on the chimney platform frame. Then, the hinge 3 is assembled to the preset position of the main body 1 of the grille. Subsequently, the valve-specific grille plate 2 is hinged to the main body 1 of the grille through the hinge 3. When closed, the valve-specific grille plate 2 and the main body 1 form a complete grille surface, blocking the platform opening. During maintenance, the valve-specific grille plate 2 is directly pushed to rotate around the hinge 3 to open, thereby achieving the function of ensuring the foundation protection of the chimney platform and the convenience of valve operation and maintenance, and thus greatly improving the practicality and ease of operation of the grille structure. Furthermore, the interior of the grille body 1 is provided with a positioning groove 101 for installing the valve-specific grille plate 2. Multiple sets of hinge grooves 102 are provided on the top side of one side of the positioning groove 101 to accommodate and provide installation space for the hinge component 3. During assembly, the valve-specific grille plate 2 is embedded into the positioning groove 101 of the grille body 1 to achieve initial positioning of the valve-specific grille plate 2. Then, the hinge component 3 is installed into the hinge groove 102 at the top of the positioning groove 101, providing stable installation support for the hinge component 3. Simultaneously, the hinge groove 102 can precisely limit the installation position of the hinge component 3, thereby achieving precise positioning of the valve-specific grille plate 2 and the hinge component 3, ensuring assembly accuracy, and greatly improving the stability and convenience of grille structure assembly. Furthermore, the hinge component 3 includes a hinge shaft fixedly installed inside the hinge groove 102 to provide a rotation axis. A connecting piece is rotatably mounted on the outer surface of the hinge shaft to connect the hinge shaft to the valve-specific grid plate 2. The other end of the connecting piece is fixedly connected to the valve-specific grid plate 2, enabling the valve-specific grid plate 2 to rotate flexibly around the hinge shaft. When the valve-specific grid plate 2 needs to be opened, the operator applies external force to push the valve-specific grid plate 2. The connecting piece rotates flexibly around the hinge shaft with the force exerted by the valve-specific grid plate 2, thereby driving the valve-specific grid plate 2 to rotate synchronously. When closing, the valve-specific grid plate 2 is pushed in the opposite direction, and the connecting piece rotates in the opposite direction until the valve-specific grid plate 2 closes and embeds into the positioning groove 101. The hinge shaft remains fixed throughout, providing stable support for the rotation process. This achieves the function of enabling the valve-specific grid plate 2 to open and close flexibly and ensuring a smooth and stable rotation process, thereby greatly improving the convenience and efficiency of valve maintenance. This embodiment has no locking mechanism, has a simple structure and is easy to assemble. It is suitable for scenarios where valve maintenance is frequent and there is no frequent passage of personnel in the platform area and no risk of accidental collision. It relies on the gravity of the valve-specific grating plate 2 and the cooperation of the positioning groove 101 to achieve closed positioning, which can quickly complete the opening and closing operation of the valve-specific grating plate 2, greatly improving the operation and maintenance efficiency, while simplifying the grating structure and reducing manufacturing costs.

[0020] Example 2 Please see Figure 1-10 This invention provides a technical solution: a hinged chimney grille structure with a locking mechanism, comprising: a grille body 1, which is mounted on a chimney platform frame; a hinge component 3, which is disposed on the grille body 1 and provides a rotatable hinge support point; a valve-specific grille plate 2, which is hinged inside the grille body 1 via the hinge component 3, and is used to form a complete grille surface with the grille body 1 in the closed state to block the chimney platform opening, and to avoid chimney valves in the open state, so as to facilitate the inspection, maintenance and disassembly of the valves; and a locking mechanism, which is correspondingly disposed between the grille body 1 and the valve-specific grille plate 2, and is used to securely lock the valve-specific grille plate 2 in the closed state to prevent the valve-specific grille plate 2 from being accidentally opened. During installation, the main body 1 of the grille is first fixed on the chimney platform frame. Then, the hinge 3 is assembled to the preset position of the main body 1 of the grille. Subsequently, the valve-specific grille 2 is hinged to the main body 1 through the hinge 3. Finally, a locking mechanism is installed at the corresponding positions of the two. When closed, the locking mechanism fixes the valve-specific grille 2, so that it forms a complete grille surface with the main body 1. During maintenance, the locking mechanism is unlocked, and the valve-specific grille 2 rotates around the hinge 3 to open. This achieves the dual purpose of protecting the chimney platform and facilitating the maintenance of valves, thereby greatly improving the practicality and operational safety of the grille structure.

[0021] Furthermore, the interior of the grille body 1 is provided with a positioning groove 101 for installing the valve-specific grille plate 2. Multiple sets of hinge grooves 102 are provided on the top side of one side of the positioning groove 101 to accommodate and provide installation space for the hinge component 3. During assembly, the valve-specific grille plate 2 is embedded into the positioning groove 101 of the grille body 1 to achieve initial positioning of the valve-specific grille plate 2. Then, the hinge component 3 is installed into the hinge groove 102 at the top of the positioning groove 101, providing stable installation support for the hinge component 3. Simultaneously, the hinge groove 102 can precisely limit the installation position of the hinge component 3, thereby achieving precise positioning of the valve-specific grille plate 2 and the hinge component 3, ensuring assembly accuracy, and greatly improving the stability and convenience of grille structure assembly.

[0022] Furthermore, the hinge component 3 includes a hinge shaft fixedly installed inside the hinge groove 102 to provide a rotation axis. A connecting piece is rotatably mounted on the outer surface of the hinge shaft to connect the hinge shaft to the valve-specific grid plate 2. The other end of the connecting piece is fixedly connected to the valve-specific grid plate 2, enabling the valve-specific grid plate 2 to rotate flexibly around the hinge shaft. When the valve-specific grid plate 2 needs to be opened, the operator applies external force to push the valve-specific grid plate 2. The connecting piece rotates flexibly around the hinge shaft with the force exerted by the valve-specific grid plate 2, thereby driving the valve-specific grid plate 2 to rotate synchronously. When closing, the valve-specific grid plate 2 is pushed in the opposite direction, and the connecting piece rotates in the opposite direction until the valve-specific grid plate 2 is closed. The hinge shaft remains fixed throughout, providing stable support for the rotation process. This achieves the function of enabling the valve-specific grid plate 2 to open and close flexibly and ensuring smooth rotation, thus greatly improving the convenience and efficiency of valve maintenance.

[0023] Furthermore, the locking mechanism includes multiple sets of lock seat assemblies 4 installed on the inner wall of one side of the positioning groove 101 and multiple sets of lock tongues 5 installed at corresponding positions at the bottom of the valve-specific grating plate 2. When the valve-specific grating plate 2 is closed and embedded in the positioning groove 101, the lock tongues 5 at its bottom will simultaneously engage with the lock seat assemblies 4 on the inner wall of the positioning groove 101. The lock seat assemblies 4 engage and limit the lock tongues 5, thereby locking the valve-specific grating plate 2. When unlocking, operating the lock seat assemblies 4 will disengage them from limiting the lock tongues 5, thus pushing the valve-specific grating plate 2 open. This achieves the function of securely locking the valve-specific grating plate 2 in the closed state and preventing accidental opening, thereby greatly improving the safety of the grating structure.

[0024] Furthermore, the lock seat assembly 4 includes a base 401 installed on the inner wall of the positioning groove 101. A locking slider 402 is slidably installed inside the base 401 through a limiting mechanism. Locking tongue claws 403 are movably connected to both sides of the top of the locking slider 402. A return spring 404 is fixedly connected to one side of the bottom of the locking slider 402. A locking groove 406 is opened on the other side of the bottom of the locking slider 402. The bottom of the return spring 404 is fixedly connected to the bottom of the inner cavity of the base 401. A first guide block 407 is fixedly connected to both sides of the bottom of the inner cavity of the locking groove 406. A second guide block 408 is fixedly connected to the top of the inner cavity of the locking groove 406. A positioning lock block 409 is fixedly connected to the middle of the inner cavity of the locking groove 406. A locking ring 405 is also fixedly connected to the bottom of the inner cavity of the base 401. When locked, the return spring 404 extends naturally, pushing the locking slider 402 to slide upward along the limiting mechanism. The locking slider 402 drives the locking tongue claws 403 on both sides to retract and engage the locking tongue 5. At the same time, the locking ring 405 is engaged with the positioning locking block 409 in the locking groove 406. The first guide block 407 and the second guide block 408 guide the locking ring 405. When unlocking, pressing the locking ring 405 pushes the locking slider 402 to slide downward and compresses the return spring 404. The locking tongue claws 403 open and disengage from the locking tongue 5, thereby achieving the function of precise locking and smooth unlocking of the locking mechanism and ensuring locking stability, thus greatly improving the reliability and ease of operation of the locking mechanism.

[0025] Furthermore, a first guide groove is formed between the two first guide blocks 407 to precisely limit the vertical movement trajectory of the locking ring 405 and prevent the locking ring 405 from deviating during vertical movement. When the locking ring 405 moves vertically with the locking slider 402, the locking ring 405 moves along the first guide groove formed by the two first guide blocks 407. The first guide groove strictly limits the movement direction of the locking ring 405, preventing it from deviating horizontally or getting stuck during movement. This achieves the effect of precisely limiting the movement trajectory of the locking ring 405 and preventing deviating and getting stuck, thereby greatly improving the smoothness and stability of the unlocking and locking actions of the locking mechanism.

[0026] Furthermore, a second guide groove is formed between the second guide block 408 and the positioning lock block 409 to precisely limit the movement trajectory of the locking ring 405 during unlocking and ensure smooth unlocking. During the unlocking process, after the locking ring 405 disengages from the positioning lock block 409, it moves along the second guide groove formed by the second guide block 408 and the positioning lock block 409. The second guide groove precisely limits the unlocking movement trajectory of the locking ring 405, preventing it from deviating and causing unlocking obstruction. At the same time, it reduces the friction between the locking ring 405 and the inner wall of the locking groove 406, thereby achieving the function of precisely limiting the unlocking trajectory and ensuring smooth unlocking, thus greatly improving the unlocking efficiency and service life of the locking mechanism.

[0027] Furthermore, the top of the positioning lock block 409 is provided with a groove that matches the locking ring 405 and is used to achieve precise engagement and positioning of the locking ring 405 and enhance locking stability. When the locking mechanism is in the locked state, the locking ring 405 will precisely engage in the groove on the top of the positioning lock block 409. The groove engages and limits the locking ring 405, preventing accidental movement of the locking ring 405 that would cause the locking slider 402 to slide down, further strengthening the locking effect. This achieves the effect of enhancing the engagement stability of the locking ring 405 and preventing accidental unlocking of the locking mechanism, thereby greatly improving the locking reliability of the entire locking mechanism and the safety of the grid structure.

[0028] Furthermore, the limiting mechanism includes a limiting groove 411 formed on the side of the base 401 and a limiting plate 410 installed on the side of the locking slider 402. The limiting plate 410 is slidably connected to the limiting groove 411 and is used to limit the locking slider 402 to slide only vertically to prevent it from shifting horizontally. When the locking slider 402 slides inside the base 401, the limiting plate 410 on the side of the locking slider 402 will slide vertically along the limiting groove 411 on the side of the base 401. The limiting groove 411 limits the movement direction of the limiting plate 410, thereby limiting the locking slider 402 to move only vertically and preventing it from shifting horizontally, which would cause the locking tongue pawl 403 to fail to accurately engage the locking tongue 5. This achieves the function of accurately limiting the sliding direction of the locking slider 402 and ensuring the accuracy of the locking action, thereby greatly improving the locking accuracy and smoothness of the locking mechanism.

[0029] Furthermore, the top of the locking tongue claw 403 and the locking slider 402 are flexibly hinged, allowing the locking tongue claw 403 to open and close radially in sync with the vertical movement of the locking slider 402. When the locking slider 402 slides upward, the locking tongue claw 403, under its own weight and the action of the locking slider 402, radially closes around the hinge point, precisely engaging with the surface of the locking tongue 5 to achieve locking. When the locking slider 402 slides downward, the locking tongue claw 403 loses its upward pull, radially opens around the hinge point, disengages from the locking tongue 5, and unlocks. The hinged design ensures that the opening and closing action of the locking tongue claw 403 is flexible and without jamming, thus achieving the effect of synchronizing the actions of the locking tongue claw 403 and the locking slider 402, ensuring smooth and flexible locking and unlocking actions, and greatly improving the ease of operation and reliability of the locking mechanism.

[0030] Working Principle: This hinged chimney grating structure is mainly used at the opening of industrial chimney platforms, suitable for chimney valve installation and subsequent maintenance. It effectively solves the problems of inconvenient disassembly of traditional chimney gratings, low efficiency caused by the need to completely remove the grating during valve maintenance, and prominent safety hazards. It ensures the convenience and safety of normal passage of the chimney platform and valve maintenance operations. Its overall working principle is coherent and fits the actual operation requirements, as follows: Under normal operation of the chimney platform, the valve-specific grating plate 2 is hinged in the positioning groove 101 of the grating body 1 via the hinge 3. Pre-fixed on the chimney platform frame, the positioning groove 101 can accurately position the valve-specific grating plate 2, preventing it from shifting horizontally. At the same time, the hinge groove 102 on the top side of the positioning groove 101 provides a stable installation space for the hinge 3, ensuring the structural stability of the hinge 3 after installation. At this time, the valve-specific grating plate 2 is in a closed state, forming a complete grating surface together with the grating body 1, which can effectively block the opening of the chimney platform, prevent personnel and debris from falling into the chimney, ensure the safety of platform passage, and at the same time not affect the overall structural integrity and aesthetics of the chimney platform. To further enhance the stability of the closed state, the locking mechanism between the grille body 1 and the valve-specific grille plate 2 works simultaneously. The locking tongue 5 at the bottom of the valve-specific grille plate 2 is engaged in the lock seat assembly 4 on the inner wall of the positioning groove 101 of the grille body 1. The return spring 404 in the lock seat assembly 4 is in a naturally extended state, pushing the locking slider 402 to move upward, causing the locking tongue claws 403 on both sides to retract radially and tightly engage with the surface of the locking tongue 5, thus achieving a stable lock on the valve-specific grille plate 2. At the same time, the locking ring 405 is engaged in the groove at the top of the positioning lock block 409. The first guide groove formed by the first guide block 407 limits the vertical movement trajectory of the locking ring 405, preventing it from deviating, further enhancing the locking stability, and effectively preventing the valve-specific grille plate 2 from opening due to external force collisions, vibrations, or other unexpected situations, ensuring the safety of platform operation. When it is necessary to inspect, maintain, or disassemble the chimney valve components, the operator can first unlock the locking mechanism. By pressing the locking ring 405 with external force, the locking ring 405 moves downward along the first guide groove formed by the first guide block 407, compressing the return spring 404 and causing it to deform. At the same time, the locking ring 405 moves along the second guide groove formed by the second guide block 408 and the positioning lock block 409, disengaging from the groove on the top of the positioning lock block 409. During the downward movement of the locking ring 405, the locking slider 402 slides downward synchronously. The limiting plate 410 in the limiting mechanism slides vertically along the limiting groove 411 on the side of the base 401, limiting the locking slider 402 to move only vertically, preventing it from shifting horizontally, and ensuring smooth unlocking. When the locking slider 402 slides downward, the locking tongue claw 403 hinged at its top opens radially simultaneously, disengaging from the locking tongue 5, thus completing the unlocking of the locking mechanism.After unlocking, the valve-specific grating plate 2 can rotate flexibly around the hinge axis under the action of the hinge component 3. The connecting piece in the hinge component 3 is fixedly connected to the valve-specific grating plate 2 and rotates synchronously around the hinge axis as the valve-specific grating plate 2 rotates. The hinge axis is fixedly installed in the hinge groove 102, providing a stable hinge support point for the entire rotation process, ensuring that the valve-specific grating plate 2 can be opened smoothly and steadily until it is opened to an angle that does not affect the operation of the valve, thereby avoiding the chimney valve and providing sufficient working space for the operator. This facilitates the operator to quickly carry out the inspection, maintenance and disassembly of the valve, greatly improving work efficiency and reducing the labor intensity of the operator. At the same time, it avoids the problems of component damage and installation misalignment that may occur during the disassembly and installation of traditional gratings. After the valve maintenance is completed, the operator can rotate the valve-specific grille plate 2 in the reverse direction, causing it to rotate around the hinge axis of the hinge component 3, gradually closing it into the positioning groove 101 of the grille body 1. The positioning groove 101 again provides precise positioning for the valve-specific grille plate 2, ensuring it fits perfectly with the grille body 1 to form a complete grille surface. During this process, the locking tongue 5 is simultaneously inserted into the lock seat assembly 4. As the locking tongue 5 is inserted, it squeezes the locking tongue claw 403 to open radially, pushing the locking slider 402 downward and compressing the return spring 404. When the valve-specific grille plate 2 is completely closed, the locking tongue 5 moves to the locking tongue claw 403. At position 3, the return spring 404 loses external pressure, elastically resets, and pushes the locking slider 402 upward, causing the locking tongue claw 403 to retract radially again and engage with the surface of the locking tongue 5. At the same time, the locking ring 405 moves upward along the first guide groove formed by the first guide block 407 and gets into the groove at the top of the positioning lock block 409, completing the automatic reset and locking of the locking mechanism. This ensures that the valve-specific grid plate 2 is once again in a stable closed state, restoring the normal function of the chimney platform. The entire workflow is smooth and seamless, ensuring the safe operation of the chimney platform and greatly improving the convenience and efficiency of valve maintenance.

[0031] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

Claims

1. A hinged chimney grille structure, characterized in that, include: The grille body (1) is installed on the chimney platform frame; Hinge (3), which is disposed on the grid body (1) to provide a rotatable hinge support point; Valve-specific grating plate (2), the valve-specific grating plate (2) is hinged inside the grating body (1) by a hinge (3), and is used to form a complete grating surface with the grating body (1) in the closed state to block the chimney platform opening, and avoid the chimney valve in the open state, so as to facilitate the inspection, maintenance and disassembly of the valve. The locking mechanism is disposed between the grille body (1) and the valve-specific grille plate (2) to securely lock the valve-specific grille plate (2) in the closed state and prevent the valve-specific grille plate (2) from being opened accidentally.

2. The hinged chimney grille structure according to claim 1, characterized in that: The inside of the grille body (1) is provided with a positioning groove (101) for installing a special grille plate (2) for valve components. On the top side of the positioning groove (101), there are multiple sets of hinge grooves (102) for adapting to the installation of hinge components (3) and providing installation space for them.

3. The hinged chimney grille structure according to claim 2, characterized in that: The hinge component (3) includes a hinge shaft fixedly installed inside the hinge groove (102) to provide a rotation axis. A connecting piece for connecting the hinge shaft and the valve-specific grid plate (2) is rotatably installed on the outer surface of the hinge shaft. The other end of the connecting piece is fixedly connected to the valve-specific grid plate (2) to realize the flexible rotation of the valve-specific grid plate (2) around the hinge shaft.

4. The hinged chimney grille structure according to claim 3, characterized in that: The locking mechanism includes multiple sets of lock seat assemblies (4) installed on the inner wall of one side of the positioning groove (101) and multiple sets of lock tongues (5) installed at the corresponding positions at the bottom of the valve-specific grid plate (2).

5. A hinged chimney grille structure according to claim 4, characterized in that: The lock seat assembly (4) includes a base (401) installed on the inner wall of the positioning groove (101). A locking slider (402) is slidably installed inside the base (401) through a limiting mechanism. Locking tongue claws (403) are movably connected to both sides of the top of the locking slider (402). A return spring (404) is fixedly connected to one side of the bottom of the locking slider (402). A locking groove (406) is opened on the other side of the bottom of the locking slider (402). The bottom of the return spring (404) is fixedly connected to the bottom of the inner cavity of the base (401). A first guide block (407) is fixedly connected to both sides of the bottom of the inner cavity of the locking groove (406). A second guide block (408) is fixedly connected to the top of the inner cavity of the locking groove (406). A positioning lock block (409) is fixedly connected to the middle of the inner cavity of the locking groove (406). A locking ring (405) is also fixedly connected to the bottom of the inner cavity of the base (401).

6. A hinged chimney grille structure according to claim 5, characterized in that: A first guide groove is formed between the two first guide blocks (407) to precisely define the vertical movement trajectory of the locking ring (405) and prevent the locking ring (405) from deviating during vertical movement.

7. A hinged chimney grille structure according to claim 5, characterized in that: The second guide block (408) and the positioning lock block (409) form a second guide groove for the movement trajectory of the precise limiting locking ring (405) when unlocking and to ensure smooth unlocking action.

8. A hinged chimney grille structure according to claim 5, characterized in that: The top of the positioning locking block (409) has a groove that is adapted to the locking ring (405) and is used to achieve precise engagement and positioning of the locking ring (405) and enhance locking stability.

9. A hinged chimney grille structure according to claim 5, characterized in that: The limiting mechanism includes a limiting groove (411) formed on the side of the base (401) and a limiting plate (410) installed on the side of the locking slider (402). The limiting plate (410) is slidably connected to the limiting groove (411) to limit the locking slider (402) to slide only vertically to prevent it from shifting horizontally.

10. A hinged chimney grille structure according to claim 5, characterized in that: The top of the locking tongue claw (403) and the locking slider (402) are hinged and can rotate flexibly, so as to realize the radial opening and contraction of the locking tongue claw (403) in sync with the vertical movement of the locking slider (402).

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