Flue monitoring device convenient to install

Abstract

The utility model discloses a flue monitoring device convenient to install. The flue monitoring device comprises an installation pipe fitting, an assembly seat, a sealing wedge block, a supporting spring, a bayonet socket, a detection sensor and a gland. The two ends of the installation pipe fitting are in butt joint with the smoke pipe, the assembly base is detachably fixed to the installation pipe fitting, sealing wedge blocks are symmetrically arranged in an inner installation cavity of the assembly base, and the supporting spring abuts against the sealing wedge blocks to enhance the sealing performance. The bayonet socket is fixed on the assembling seat through the gland, and the wedge surface B at the inner side end of the bayonet socket is attached to the wedge surface A of the sealing wedge block to ensure tight connection. The detection sensor is installed at the inner side end of the bayonet socket, and a wire is led out from the outer side of the assembly seat. The device is convenient to install and reliable in sealing, supports rapid maintenance and function extension, is suitable for long-term stable monitoring of flue emission in the catering industry, and assists merchants in efficient and compliant operation.

Description

Technical Field

[0001] This utility model relates to the field of catering smoke detection technology, specifically a smoke duct monitoring device that is easy to install. Background Technology

[0002] With the rapid development of the catering industry, the emission issues from kitchen exhaust ducts have received increasing attention. Pollutants emitted from these ducts, such as cooking fumes, volatile organic compounds (VOCs), nitrogen oxides (NOx), and carbon monoxide (CO), not only affect the environment but may also harm the health of nearby residents. Therefore, real-time monitoring of catering exhaust ducts to ensure that pollutants are emitted in compliance with standards has become an important requirement for environmental supervision.

[0003] Currently, flue gas monitoring devices are typically installed using fixed or embedded structures, which presents the following problems:

[0004] 1. Complex installation: Traditional monitoring equipment usually needs to be welded or flanged on the flue, which is a complicated installation process. Moreover, the entire equipment needs to be disassembled for maintenance or sensor replacement, which affects the normal operation of the flue.

[0005] 2. Sealing: When sensors are not installed or equipment is being maintained, flue gas leakage is likely to occur at the flue interface, leading to distorted monitoring data or environmental pollution.

[0006] 3. Insufficient scalability: Existing devices mostly use a single sensor for fixed installation, making it difficult to flexibly adjust the sensor type (such as particulate matter, VOCs, temperature, etc.) according to monitoring needs, and cannot achieve simultaneous monitoring of multiple parameters.

[0007] 4. Low stability: The airflow in the flue flue fluctuates greatly. If the sensor is not installed securely or is not sealed properly, it is easy to cause monitoring errors or equipment damage due to vibration or flue gas erosion.

[0008] To address the aforementioned issues, there is an urgent need for a flue gas monitoring device that is easy to install, has good sealing properties, and can be flexibly expanded, in order to achieve efficient and stable monitoring of pollutants from restaurant flues. Utility Model Content

[0009] In view of the above-mentioned shortcomings of the existing technology, the purpose of this utility model is to provide a flue gas monitoring device that is easy to install. It is superior to traditional solutions in terms of ease of installation, sealing reliability, functional expandability and maintenance efficiency. It is suitable for long-term stable monitoring of flue gas emissions in the catering industry and helps businesses operate efficiently and in compliance with regulations.

[0010] The technical solution adopted by this utility model to achieve the above objectives is: a flue monitoring device that is easy to install, including an installation pipe, an assembly base, a sealing wedge, a support spring, a plug-in base, a detection sensor, and a pressure cover.

[0011] The two ends of the mounting fitting are connected to the flue pipe. The mounting base is detachably fixed to the mounting fitting in a radial manner. The mounting base has a mounting cavity. Two sets of symmetrically arranged sealing wedges are slidably installed in the mounting cavity. The support spring is assembled into the mounting cavity and keeps in contact with the sealing wedges. The inner end of the mounting base has an assembly interface that communicates with the mounting cavity.

[0012] The plug-in socket is radially inserted into the mounting base and fixed by the pressure cap. The sealing wedge has a wedge surface A. The inner end of the plug-in socket has a wedge surface B that fits and conforms to the wedge surface A. The inner end of the plug-in socket is inserted into the mounting interface. The detection sensor is mounted on the inner end of the plug-in socket. The wiring of the detection sensor is led out from the outer end of the mounting base and arranged on the outer side of the mounting pipe.

[0013] Based on the above technical solutions, in order to ensure that the mounting base can be stably assembled from the inside of the installation pipe fitting, and at the same time facilitate its assembly and disassembly, the following technical solutions are provided.

[0014] An assembly wing plate is fixedly connected to the inner end of the assembly base. An assembly groove is provided on the inner wall of the mounting pipe to fit the assembly base and the assembly wing plate. The assembly base and the assembly wing plate are nested and installed in the assembly groove. A fixing bolt that is screwed to the mounting pipe is inserted into the assembly wing plate.

[0015] Based on the above technical solutions, and given the limited space in the mounting cavity, in order to ensure the rational arrangement of the support spring and sealing wedge within it, and to enable the mechanical sealing wedge to slide stably, the following technical solution is provided.

[0016] A guide strip is fixed to the side wall of the mounting cavity, and a guide groove that nests and matches the guide strip is opened on the side wall of the sealing wedge. A receiving groove is opened at the outer end of the sealing wedge, and the support spring is arranged in the receiving groove.

[0017] Based on the above technical solutions, in order to ensure that the plug can be effectively inserted into the assembly base and fixedly installed by the pressure cap, the following technical solutions are provided.

[0018] The outer wall of the mounting fitting is fixedly connected to an mounting sleeve that communicates with the assembly groove. The outer end of the assembly base is fixedly connected to an assembly sleeve arranged in the mounting sleeve. The outer end of the assembly sleeve is provided with a threaded groove arranged on the outside of the mounting sleeve. The plug is inserted into the assembly sleeve. The top outer wall of the plug is fixedly connected to an abutment ring seat. The pressure cap is sleeved around the plug and screwed into the threaded groove. The abutment ring seat abuts against the pressure cap and the assembly sleeve.

[0019] In the above technical solution, in order to ensure that the plug-in socket can be stably plugged into the assembly base and the assembly sleeve in a relatively sliding manner, and thus ensure that the plug-in socket can be stably installed therein.

[0020] A positioning ring is fixedly connected to the connection between the assembly sleeve and the mounting cavity. A guide seat is provided on the outer wall of the insertion seat to maintain contact with the positioning ring. A slide rail is fixedly connected to the inner wall of the assembly sleeve. A slide groove is provided on the guide seat to maintain sliding contact with the slide rail.

[0021] The beneficial effects of this utility model are:

[0022] 1. Quick installation and disassembly: The detachable assembly base design allows for stable connection with the installation pipe fittings through assembly grooves, fixing bolts, and other structures. The plug-in base equipped with detection sensors can be quickly assembled onto the installation pipe fittings through plug-in and pressure cap fixation, eliminating the need for complicated installation and reducing the time spent on disassembly and maintenance.

[0023] 2. High sealing performance to prevent smoke leakage. When the sensor is not installed, the support spring pushes the sealing wedge to close, automatically sealing the assembly interface and effectively preventing smoke leakage. When the connector is inserted, wedge surface A and wedge surface B cooperate to push open the sealing wedge, ensuring that the sensor remains sealed while extending into the flue, avoiding data distortion. The sealing ring further enhances the leak-proof performance of the connector, preventing oil fumes generated during cooking from leaking from the assembly part.

[0024] 3. Modular design, flexibly adaptable to various sensors. The mounting base can be arranged in a ring array along the mounting pipe, supporting the simultaneous installation of multiple sensors to meet multi-parameter monitoring needs. The standardized design of the plug-in socket facilitates the expansion or upgrading of monitoring functions and reduces modification costs.

[0025] 4. Stable guidance and precise positioning: The guide strip and guide groove ensure smooth sliding of the sealing wedge block and avoid jamming. The slide rail and slide groove structure ensures precise alignment of the plug seat and ensures tight fit of the wedge surface. The positioning ring and guide seat further fix the position of the plug seat, prevent sensor displacement, and improve monitoring accuracy.

[0026] 5. The compact structure reduces airflow interference. The mounting base and mounting flange are embedded in the mounting groove, avoiding the protruding structure from affecting the airflow in the flue and ensuring the accuracy of monitoring data.

[0027] 6. Easy maintenance and reduced operating costs: The modular design of the sensors supports online replacement without disassembling the flue or shutting down the machine, reducing maintenance time and costs. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2This is a structural diagram of the installed pipe fittings;

[0030] Figure 3 A structural diagram showing the assembly of components such as mounting base, sealing wedge, plug-in base, detection sensor, and gland;

[0031] Figure 4 A detailed schematic diagram showing the assembly of the mounting base, connector, and detection sensor on the mounting pipe fitting;

[0032] Figure 5 This is a structural schematic diagram of the assembly base;

[0033] Figure 6 This is a structural diagram of the sealing wedge and support spring in their disassembled state.

[0034] Figure 7 This is a schematic diagram of the connector and the components mounted on it.

[0035] In the diagram: 1. Installation fitting, 11. Connecting flange, 12. Assembly groove, 13. Installation sleeve, 2. Assembly seat, 21. Installation cavity, 211. Guide strip, 22. Assembly interface, 23. Assembly flange, 231. Fixing bolt, 24. Assembly sleeve, 241. Positioning ring, 242. Slide rail, 3. Sealing wedge, 31. Wedge surface A, 32. Guide groove, 33. Receiving groove, 4. Support spring, 5. Plug-in seat, 51. Wedge surface B, 52. Abutment ring seat, 53. Guide seat, 531. Slide groove, 6. Detection sensor, 61. Wiring, 7. Pressure cap. Detailed Implementation

[0036] 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.

[0037] Please see Figure 1-7 A flue gas monitoring device that is easy to install includes an installation fitting 1, an assembly base 2, a sealing wedge 3, a support spring 4, a plug-in base 5, a detection sensor 6, and a pressure cap 7.

[0038] The two ends of the mounting fitting 1 are connected to the flue pipe. The mounting base 2 is detachably fixed to the mounting fitting 1 in a radial manner. The mounting base 2 has a mounting cavity 21. Two sets of symmetrically arranged sealing wedges 3 are slidably installed in the mounting cavity 21. The support spring 4 is assembled into the mounting cavity 21 and keeps in contact with the sealing wedges 3. The inner end of the mounting base 2 has an assembly interface 22 that is connected to the mounting cavity 21.

[0039] The plug-in base 5 is inserted radially into the mounting base 2 and fixed by the pressure cap 7. The sealing wedge block 3 is provided with a wedge surface A31. The inner end of the plug-in base 5 is provided with a wedge surface B51 that fits and conforms to the wedge surface A31. The inner end of the plug-in base 5 is inserted into the mounting interface 22. The detection sensor 6 is assembled to the inner end of the plug-in base 5. The wiring 61 of the detection sensor 6 is led out from the outer end of the mounting base 2 and arranged on the outer side of the mounting pipe 1.

[0040] The installation fitting 1 can stably connect with the flue pipe for emission or transportation, and at the same time, it can ensure that the mounting base 2 can be stably installed on it in a detachable manner, thereby realizing the integrated installation of the sealing wedge 3 and the support spring 4. When the plug-in base 5 with the detection sensor 6 is not installed, the two sets of sealing wedges 3 are brought together by the support spring 4 and effectively seal the assembly interface 22, preventing the flue gas from leaking out through the assembly interface 22 when the detection sensor 6 and the plug-in base 5 are not installed.

[0041] To ensure that the installation fitting 1 can be effectively connected to the end of the flue, connecting flanges 11 are provided at both ends of the installation fitting 1. The connecting flanges 11 can be effectively connected to the flue or the exhaust port of the range hood.

[0042] A sealing adhesive layer can be sprayed onto the outer surface of the sealing wedge 3 to ensure the sealing effect of the two sets of sealing wedges 3 when they are in contact, as well as the sealing effect on the assembly interface 22.

[0043] The mounting base 2 can be arranged in a ring array on the mounting pipe 1. Different detection sensors 6 with different detection functions can be installed through the matching plug-in base 5. The detection sensors 6 can be used to detect harmful substances in the smoke generated by catering and cooking, as well as temperature sensors, such as oil fume particulate matter sensors, volatile organic compounds (VOCs) sensors, nitrogen oxide concentration sensors, carbon monoxide concentration sensors, etc.

[0044] When the plug-in base 5 equipped with the detection sensor 6 is inserted radially into the mounting base 2 from the outside of the mounting pipe 1, the wedge surface B51 provided on it can interact with the wedge surface A31 provided on the sealing wedge block 3, thereby pushing the sealing wedge block 3 to both sides, so that the inner end of the plug-in base 5 extends into the mounting interface 22, and the detection sensor 6 provided on its inner end can effectively detect the flue gas transmitted in the mounting pipe 1.

[0045] To ensure that the mounting base 2 can be stably assembled from the inside of the mounting pipe 1, and to facilitate its assembly and disassembly, the following technical solution is provided.

[0046] The inner end of the mounting base 2 is fixedly connected to the mounting wing plate 23. The inner wall of the mounting pipe 1 is provided with a mounting groove 12 that nests and matches the mounting base 2 and the mounting wing plate 23. The mounting base 2 and the mounting wing plate 23 are nested and installed in the mounting groove 12. The mounting wing plate 23 is fitted with a fixing bolt 231 that is screwed to the mounting pipe 1.

[0047] The assembly groove 12 ensures the stable installation of the assembly wing plate 23 and the assembly seat 2, preventing them from extending into the installation pipe fitting 1 and affecting the stability of the flue gas flow. The assembly wing plate 23 is used to fix the bolts 231 stably, so as to achieve the stable installation of the assembly seat 2 in the installation pipe fitting 1.

[0048] Due to the limited space in the mounting cavity 21, in order to ensure the reasonable arrangement of the support spring 4 and the sealing wedge 3 within it, and to enable the mechanical sealing wedge 3 to slide stably, the following technical solution is provided.

[0049] A guide strip 211 is fixed to the side wall of the mounting cavity 21. A guide groove 32 that nests and matches the guide strip 211 is provided on the side wall of the sealing wedge 3. A receiving groove 33 is provided on the outer end of the sealing wedge 3. The support spring 4 is arranged in the receiving groove 33.

[0050] The combination of guide bar 211 and guide groove 32 can ensure that the sealing wedge 3 is stably assembled in the mounting cavity 21 in a relatively sliding manner. The setting of receiving groove 33 can arrange one end of support spring 4 therein, thereby enabling support spring 4 and sealing wedge 3 to be stably arranged in mounting cavity 21.

[0051] To ensure that the connector 5 can be effectively inserted into the mounting base 2 and fixedly installed through the pressure cap 7, the following technical solution is provided.

[0052] The outer wall of the mounting fitting 1 is fixedly connected to the mounting sleeve 13, which is in communication with the mounting groove 12. The outer end of the mounting base 2 is fixedly connected to the mounting sleeve 13, and the outer end of the mounting sleeve 24 is provided with a threaded groove on the outer side of the mounting sleeve 13. The plug seat 5 is inserted into the mounting sleeve 24. The top outer wall of the plug seat 5 is fixedly connected to the abutment ring seat 52. The pressure cap 7 is sleeved on the periphery of the plug seat 5 and is screwed into the threaded groove. The abutment ring seat 52 abuts against the pressure cap 7 and the mounting sleeve 24.

[0053] The installation sleeve 13 ensures that the installation sleeve 24 on the mounting base 2 extends to the outside of the installation pipe 1, and can tightly abut against the end of the installation sleeve 13 after the pressure cap 7 is tightened. At the same time, the pressure cap 7 can also abut against and fix the abutting ring seat 52 on the plug seat 5, so as to ensure that the plug seat 5 is stably installed in the mounting base 2 and the installation sleeve 24.

[0054] A sealing ring can be fitted on the plug-in seat 5. The sealing ring abuts against the assembly sleeve 24 and the abutment ring seat 52, which can prevent flue gas from leaking out through the gap between the plug-in seat 5 and the assembly seat 2 and the assembly pipe.

[0055] To ensure that the connector 5 can be stably inserted into the mounting base 2 and the mounting sleeve 24 in a relatively sliding manner, thereby ensuring that the connector 5 can be stably installed therein.

[0056] A positioning ring 241 is fixedly connected to the connection between the mounting sleeve 24 and the mounting cavity 21. A guide seat 53 is provided on the outer wall of the insertion seat 5 to maintain contact with the positioning ring 241. A slide rail 242 is fixedly connected to the inner wall of the mounting sleeve 24. A slide groove 531 is provided on the guide seat 53 to maintain sliding contact with the slide rail 242.

[0057] The guide seat 53 can abut against the positioning ring 241, further ensuring the stability and accuracy of the positioning and installation of the plug seat 5. The cooperation between the slide rail 242 and the slide groove 531 can ensure that the wedge surface B51 always fits and conforms to the wedge surface A31 during the installation of the plug seat 5 in the assembly seat 2.

[0058] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0059] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A flue monitoring device for ease of installation, characterised in that: The utility model provides a kind of smoke pipe sealing device, including installation pipe fitting (1), assembly seat (2), sealing wedge (3), support spring (4), plug-in seat (5), detection sensor (6), gland (7), Two ends of the installation pipe fitting (1) are connected with the smoke pipe, the assembly seat (2) is fixed to the installation pipe fitting (1) in a detachable manner along the radial direction, the assembly seat (2) is provided with an installation cavity (21), two groups of symmetrically arranged sealing wedges (3) are slidably installed in the installation cavity (21), the support spring (4) is assembled into the installation cavity (21) and abuts against the sealing wedge (3), the inner side of the assembly seat (2) is provided with an assembly interface (22) in communication with the installation cavity (21). The plug-in seat (5) is inserted into the assembly seat (2) along the radial direction and is fixed by the gland (7), the sealing wedge (3) is provided with a wedge surface A (31), the inner side of the plug-in seat (5) is provided with a wedge surface B (51) matched with the wedge surface A (31), the inner side of the plug-in seat (5) is inserted into the assembly interface (22), the detection sensor (6) is assembled into the inner side of the plug-in seat (5), and the wire (61) of the detection sensor (6) is led out from the outer side of the assembly seat (2) and arranged on the outer side of the installation pipe fitting (1).

2. A flue monitoring device for ease of installation according to claim 1 characterised in that: The inner side of the assembly seat (2) is fixedly connected with an assembly wing plate (23), the inner wall of the installation pipe fitting (1) is provided with an assembly groove (12) matched with the assembly seat (2) and the assembly wing plate (23), the assembly seat (2) and the assembly wing plate (23) are nested and installed into the assembly groove (12), and the assembly wing plate (23) is inserted with a fixing bolt (231) rotatably connected with the installation pipe fitting (1).

3. A flue monitoring device for ease of installation according to claim 1 characterised in that: The side wall of the installation cavity (21) is fixedly connected with a guide strip (211), the side wall of the sealing wedge (3) is provided with a guide groove (32) matched with the guide strip (211), the outer side of the sealing wedge (3) is provided with a receiving groove (33), and the support spring (4) is arranged in the receiving groove (33).

4. A flue monitoring device for ease of installation according to claim 2, characterised in that: The outer wall of the installation pipe fitting (1) is fixedly connected with an installation sleeve (13) in communication with the assembly groove (12), the outer side of the assembly seat (2) is fixedly connected with an assembly sleeve (24) arranged in the installation sleeve (13), the outer side of the assembly sleeve (24) is provided with a threaded groove arranged outside the installation sleeve (13), the plug-in seat (5) is inserted into the assembly sleeve (24), the top outer wall of the plug-in seat (5) is fixedly connected with an abutting ring seat (52), the gland (7) is sleeved outside the plug-in seat (5) and rotatably connected with the threaded groove, and the abutting ring seat (52) abuts against the gland (7) and the assembly sleeve (24).

5. A flue monitoring device for ease of installation according to claim 4, characterised in that: The connecting part between the assembly sleeve (24) and the mounting cavity (21) is fixedly connected with a positioning ring (241), an outer wall of the plug-in seat (5) is provided with a guide seat (53) abutting against the positioning ring (241), an inner wall of the assembly sleeve (24) is fixedly connected with a sliding rail (242), and a sliding groove (531) is arranged on the guide seat (53) and is in sliding connection with the sliding rail (242).

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