Device for installing smoke pipe at air outlet of range hood
By combining the installation unit and the fixing unit, the installation problem of the range hood outlet connection structure when space is insufficient is solved, realizing a fast and stable connection of the flue pipe, and improving installation efficiency and convenience.
Patent Information
- Application Number
- CN202423131743.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-18
AI Technical Summary
The existing range hood outlet connection structure is difficult to install when space is limited, and the installation efficiency of bolt and thread connection is low.
The design employs a combination of installation and fixing units, including rigid tubes, mounting blocks, side plates, springs, guide rods, connecting plates, connecting shafts, knobs, and locking rods. The knobs drive the locking rods to connect with the mounting blocks via thread, and the components are then fixed to the wall with bolts, enabling rapid installation.
It improves the ease and efficiency of installing the range hood's exhaust pipe, ensures a stable connection of the pipe to prevent shaking, and allows operation in low-light conditions.
Smart Images

Figure CN223740853U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of range hood technology, specifically to a range hood exhaust pipe installation device. Background Technology
[0002] A range hood, also known as a kitchen exhaust hood, is a kitchen appliance that purifies the kitchen environment. It is installed above the kitchen stove and can quickly remove the waste from the stove and the harmful fumes produced during cooking, exhausting them outdoors. At the same time, it condenses and collects the fumes, reducing pollution, purifying the air, and providing safety features such as preventing poisoning and explosions.
[0003] While existing range hood vent connection structures are convenient for installation, in actual use, the vent mount of the range hood vent connection structure in this patent is quite high. When there is insufficient space, it becomes difficult for the exhaust pipe to connect to the range hood through the vent mount, causing great inconvenience to the installation of the range hood.
[0004] As disclosed in the vent connection structure with announcement number CN220379780U, after the range hood is installed in the required position, the lower end of the vent seat is inserted into the vent of the range hood and fixed. Then, the flue pipe is inserted into the slot, and the position of the clamp is supported by the top pressure component. The support component also prevents the clamp from shifting, thus securing the flue pipe inside the slot. By inserting the lower end of the vent seat into the range hood, the space occupied by the vent seat is effectively reduced, avoiding the problem of insufficient reserved space affecting the installation of the range hood. It also makes the installation and disassembly of the flue pipe more convenient and quick.
[0005] However, during use, the device is connected to the range hood via a bolt thread, and the air outlet seat is fixed to the range hood via a fixing component, resulting in low installation efficiency.
[0006] Therefore, we urgently need to provide a range hood exhaust pipe installation device. Utility Model Content
[0007] The purpose of this utility model is to provide a range hood exhaust pipe installation device to solve the problem of low installation efficiency mentioned in the background art, which involves connecting the lower end of a bolt to the range hood via a threaded connection and then fixing the exhaust pipe seat to the range hood via a fixing component.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a range hood exhaust pipe installation device, comprising a range hood and an exhaust pipe, wherein the exhaust pipe is connected to the top of the range hood, and an installation device is provided on the top of the range hood, the installation device comprising an installation unit and a fixing unit.
[0009] The installation unit is located on the top of the range hood, and the fixing unit is located on the front and rear sides of the range hood.
[0010] The installation unit includes a rigid pipe, an installation block, a side plate, a spring, a guide rod, a connecting plate, a connecting shaft, a knob, and a locking rod. The rigid pipe is fixedly installed at the bottom of the exhaust pipe. The installation block is fixedly installed on the front and rear sides of the outer surface of the rigid pipe. The side plates are fixedly installed on the front and rear sides of the top of the range hood. The spring is fixedly installed on one side of the two adjacent side plates. The guide rod is fixedly installed on one side of the side plate, located inside the spring. The connecting plate is fixedly installed at the end of the guide rod away from the side plate. The connecting shaft is fixedly installed at both ends of the connecting plate on the side away from the guide rod. The knob is rotatably connected to the end of the connecting shaft away from the connecting plate. The locking rod is fixedly installed on the side of the knob away from the connecting shaft.
[0011] Preferably, the knob has an annular groove inside, and the end of the connecting shaft away from the connecting plate has a protrusion. The protrusion is engaged in the annular groove and rotates along the annular groove. Through the cooperation between the protrusion and the annular groove, the knob can rotate around the connecting shaft.
[0012] Preferably, the mounting block has a locking hole with the same diameter as the locking rod, and the locking hole has an internal thread. The locking rod has a threaded groove in the middle. After the locking rod is inserted into the locking hole, the knob is turned to drive the locking rod to rotate and connect with the threaded groove in the locking hole, so that the locking rod enters the locking rod, which further improves the installation quality of the exhaust pipe and prevents the exhaust pipe from shaking.
[0013] Preferably, the outer surface of the knob is provided with anti-slip texture. The anti-slip texture improves the visibility of the knob by the operator's hand and increases the friction between the hand and the knob, so that the operator can easily find the knob and fix the exhaust pipe in low light conditions.
[0014] Preferably, the fixing unit includes a side lug and a bolt, the side lug being fixedly installed on the front and rear sides of the range hood, and the bolt being threaded into the inside of the side lug.
[0015] Preferably, the side ear has a threaded hole inside, and a bolt passes through the threaded hole to connect with a reserved hole in the wall, so as to facilitate fixing the range hood to the wall.
[0016] Preferably, a sealing gasket is installed at the connection between the rigid pipe and the range hood to prevent fumes from escaping from the gap at the connection between the rigid pipe and the range hood.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. This range hood exhaust pipe installation device, through the setting of an installation unit, pushes the connecting plate outward to compress the spring, and then inserts the rigid pipe connected to the bottom of the exhaust pipe into the top of the range hood. When the locking hole of the installation block and the locking rod are on the same straight line, the connecting plate is released, and under the action of the spring, the connecting plate is pushed to move the locking rod, so that the unthreaded end of the locking rod is inserted into the installation block. Then, the knob is turned to drive the locking rod to rotate, thereby making the locking rod threadedly connected to the installation block, and inserting the locking rod into the installation block to further fix the exhaust pipe. The installation is convenient and efficient, solving the problem of low installation efficiency in the background technology, which involves connecting the lower end of the bolt to the range hood threadedly, and then fixing the exhaust pipe seat to the range hood through the fixing component.
[0019] 2. The range hood exhaust pipe installation device is designed with a fixing unit, which connects to a pre-drilled hole in the wall via bolts through threaded holes, thus facilitating the fixing of the range hood to the wall. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a partial structural diagram of the installation unit of this utility model;
[0022] Figure 3 This is an exploded view of the connection between the knob and the connecting shaft of this utility model;
[0023] Figure 4 This is a schematic diagram of the connection between the exhaust pipe and the rigid pipe of this utility model.
[0024] In the diagram: 1. Range hood; 2. Exhaust duct; 301. Rigid duct; 302. Mounting block; 303. Side plate; 304. Spring; 305. Guide rod; 306. Connecting plate; 307. Connecting shaft; 308. Knob; 309. Locking rod; 401. Side lug; 402. Bolt; 5. Sealing gasket. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figures 1-4 This utility model provides a technical solution:
[0027] Example 1: A range hood exhaust pipe installation device includes a range hood 1 and an exhaust pipe 2. The exhaust pipe 2 is connected to the top of the range hood 1. An installation device is provided on the top of the range hood 1. The installation device includes an installation unit and a fixing unit.
[0028] The mounting unit is located on the top of the range hood 1, and the fixing unit is located on the front and rear sides of the range hood 1.
[0029] The installation unit includes a rigid pipe 301, an installation block 302, a side plate 303, a spring 304, a guide rod 305, a connecting plate 306, a connecting shaft 307, a knob 308, and a locking rod 309. The rigid pipe 301 is fixedly installed at the bottom of the exhaust pipe 2. The installation block 302 is fixedly installed on the front and rear sides of the outer surface of the rigid pipe 301. The installation block 302 has a locking hole with the same diameter as the locking rod 309, and the locking hole has an internal thread. The locking rod 309 has a threaded groove in the middle. After the locking rod 309 is inserted into the locking hole, the knob 308 is rotated to drive the locking rod 309 to rotate and connect with the threaded groove in the locking hole, so that the locking rod 309 enters the locking rod 309, further improving the installation quality of the exhaust pipe 2 and preventing the exhaust pipe 2 from shaking. The side plate 303 is fixedly installed on the front and rear sides of the top of the range hood 1. On one side, spring 304 is fixedly installed on one side of the two adjacent side plates 303. Guide rod 305 is fixedly installed on one side of side plate 303 located inside spring 304. Connecting plate 306 is fixedly installed on the end of guide rod 305 away from side plate 303. Connecting shaft 307 is fixedly installed on the front and rear ends of connecting plate 306 away from guide rod 305. Knob 308 is rotatably connected to the end of connecting shaft 307 away from connecting plate 306. Knob 308 has an annular groove inside. Connecting shaft 307 has a protrusion at the end away from connecting plate 306. The protrusion is engaged in the annular groove and rotates along the annular groove. Through the cooperation of the protrusion and the annular groove, knob 308 can rotate around connecting shaft 307. Locking rod 309 is fixedly installed on the side of knob 308 away from connecting shaft 307.
[0030] Example 2: Based on Example 1: The fixing unit includes a side ear 401 and a bolt 402. The side ear 401 is fixedly installed on the front and rear sides of the range hood 1. The side ear 401 has a threaded hole inside. The bolt 402 passes through the threaded hole and connects to the reserved hole in the wall, so as to facilitate fixing the range hood 1 to the wall. The bolt 402 is threadedly connected to the inside of the side ear 401.
[0031] Example 3: Based on Example 1: The outer surface of the knob 308 is provided with anti-slip texture. The anti-slip texture improves the visibility of the knob 308 by the operator's hand and increases the friction between the hand and the knob 308, so that the operator can easily find the knob 308 and fix the exhaust pipe 2 in low light conditions.
[0032] Example 4: Based on Example 1: A sealing gasket 5 is installed at the connection between the rigid pipe 301 and the range hood 1 to prevent oil fumes from escaping from the gap at the connection between the rigid pipe 301 and the range hood 1.
[0033] In use, the range hood 1 is fixed to the wall by connecting the bolt 402 through the threaded hole to the reserved hole in the wall. Then, push the connecting plate 306 outward to compress the spring 304, and insert the rigid pipe 301 connected to the bottom of the exhaust pipe 2 into the top of the range hood 1. When the locking hole in the mounting block 302 and the locking rod 309 are on the same straight line, release the connecting plate 306. Under the action of the spring 304, push the connecting plate 306 to move the locking rod 309, so that the unthreaded end of the locking rod 309 is inserted into the mounting block 302. Then, turn the knob 308 to rotate the locking rod 309, so that the locking rod 309 is threadedly connected to the mounting block 302 and inserted into the mounting block 302, further fixing the exhaust pipe 2 and improving the installation quality.
[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A range hood air outlet flue mounting device, comprising a range hood (1) and an air outlet flue (2), the air outlet flue (2) being connected to the top of the range hood (1), characterized in that: The top of the range hood (1) is provided with a mounting device, the mounting device comprises a mounting unit and a fixing unit; The mounting unit is arranged on the top of the range hood (1), and the fixing unit is arranged on the front and rear sides of the range hood (1); The mounting unit comprises a hard pipe (301), a mounting block (302), a side plate (303), a spring (304), a guide rod (305), a connecting plate (306), a connecting shaft (307), a knob (308) and a clamping rod (309), the hard pipe (301) is fixedly installed on the bottom of the air outlet pipe (2), the mounting block (302) is fixedly installed on the outer surface of the hard pipe (301) on the front and rear sides, the side plate (303) is fixedly installed on the top of the range hood (1) on the front and rear sides, the spring (304) is fixedly installed on one side adjacent to the two side plates (303), the guide rod (305) is fixedly installed on one side of the side plate (303) inside the spring (304), the connecting plate (306) is fixedly installed on one end of the guide rod (305) away from the side plate (303), the connecting shaft (307) is fixedly installed on the front and rear ends of one side of the connecting plate (306) away from the guide rod (305), the knob (308) is rotatably connected to one end of the connecting shaft (307) away from the connecting plate (306), and the clamping rod (309) is fixedly installed on one side of the knob (308) away from the connecting shaft (307).
2. The cooking fume exhaust hood outlet chimney mounting device according to claim 1, characterized in that: An annular sliding groove is formed in the knob (308), a protrusion is formed on one end of the connecting shaft (307) away from the connecting plate (306), the protrusion is clamped in the annular sliding groove, and the protrusion rotates along the annular sliding groove.
3. The cooking fume exhaust hood outlet duct mounting device according to claim 1, characterized in that: A clamping hole with the same diameter as the clamping rod (309) is formed in the mounting block (302), and the clamping hole is provided with an internal thread, and a threaded groove is formed in the middle of the clamping rod (309).
4. The cooking fume exhaust hood outlet duct mounting device according to claim 1, characterized in that: Anti-skid lines are formed on the outer surface of the knob (308).
5. The cooking fume exhaust hood outlet duct mounting device according to claim 1, characterized in that: The fixing unit comprises a side lug (401) and a bolt (402), the side lug (401) is fixedly installed on the front and rear sides of the range hood (1), and the bolt (402) is threadedly connected to the inside of the side lug (401).
6. The range hood air outlet flue mounting device according to claim 5, characterized in that: A threaded hole is formed in the inside of the side lug (401).
7. The cooking fume exhaust hood outlet duct mounting device according to claim 1, characterized in that: A sealing gasket (5) is installed at the connection between the hard pipe (301) and the range hood (1).
Citation Information
Patent Citations
Air outlet connecting structure
CN220379780U