Telescopic adjustable smoke exhaust pipe

Abstract

The utility model belongs to the technical field of smoke exhaust pipes, and particularly relates to a telescopic adjustable smoke exhaust pipe which comprises a first smoke exhaust pipe and a telescopic mechanism arranged above the first smoke exhaust pipe, the telescopic mechanism comprises a mounting seat, a driving gear and a connecting gear, the mounting seat is mounted on the front end face of the first smoke exhaust pipe, and the driving gear is connected with the connecting gear. The device comprises a mounting seat, a hand wheel is arranged on the mounting seat, a driving gear is arranged in the mounting seat, two sides of the driving gear are meshed with connecting gears, and threaded rods are arranged in the connecting gears. The second smoke exhaust pipes on the two sides can stretch out and draw back on the first smoke exhaust pipe through the positioning grooves and the positioning blocks, the smoke exhaust pipes can adapt to different working environments and use scenes, telescopic adjustment is conducted according to needs during installation, then the second smoke exhaust pipes slide between the sliding grooves and the sliding rods, and the smoke exhaust pipes can be installed conveniently. And the stability of the second smoke exhaust pipe during telescopic adjustment is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke exhaust pipes, in particular to a telescopic and adjustable smoke exhaust pipe. Background Art

[0002] The purpose of smoke exhaust ducts is to exhaust indoor smoke and dust to the outside through exhaust machinery. Since smoke and dust often stick to the pipes, the smoke exhaust ducts need to be cleaned frequently. After installation, they are generally fixed and unchanged. The smoke exhaust ducts have a wide range of applications, including hotels, factories, etc.

[0003] However, when installing the existing smoke exhaust pipe, the uncertainty of the installation position causes difficulties in installing the smoke exhaust pipe. In addition, the inner wall of the smoke exhaust pipe is provided with a filter to block external dust, which is inconvenient to disassemble after long-term use. Therefore, a retractable and adjustable smoke exhaust pipe is proposed to address the above problems. Utility Model Content

[0004] In order to make up for the shortcomings of the existing technology and solve the problems that the smoke exhaust pipe is difficult to install due to the uncertainty of the installation position, and the filter screen on the inner wall of the smoke exhaust pipe is set to block external dust, which makes it inconvenient to disassemble after long-term use, the utility model proposes a retractable and adjustable smoke exhaust pipe.

[0005] The technical solution adopted by the present invention to solve its technical problem is as follows: the telescopic adjustable smoke exhaust pipe described in the present invention comprises a first smoke exhaust pipe and a telescopic mechanism arranged above the first smoke exhaust pipe, the telescopic mechanism comprises a mounting seat, a driving gear and a connecting gear, the front end surface of the first smoke exhaust pipe is mounted with a mounting seat, the interior of the mounting seat is mounted with a driving gear, both sides of the driving gear are meshed with connecting gears, a threaded rod is mounted inside the connecting gear, a second smoke exhaust pipe is mounted on the outer surface of the threaded rod, a fixing plate is mounted on the side wall of the mounting seat, and a sliding plate is mounted on the left side wall of the fixing plate Rod, positioning blocks are installed on both sides of the front end face of the first smoke exhaust pipe, a positioning groove is provided on the inner wall of the second smoke exhaust pipe, a sliding groove is provided above the positioning groove, an installation cavity is provided inside the upper end of the second smoke exhaust pipe, a connecting spring is installed on the inner wall of the installation cavity, a connecting plate is installed on the end of the connecting spring, a locking block is installed on the lower end face of the connecting plate, a limiting plate is installed on the inner wall of the second smoke exhaust pipe, a limiting hole is provided on the inner wall of the limiting plate, a limiting bolt is installed inside the limiting hole, a filter bracket is installed on the end of the limiting bolt, and a locking hole is provided on the upper end face of the filter bracket.

[0006] The four ends of the second smoke exhaust pipe are installed with mounting plates, and threaded holes are opened inside the mounting plates.

[0007] Preferably, the second smoke exhaust pipe forms a sliding structure through the threaded rod, the positioning groove and the positioning block, and the threaded rod forms a rotating structure through the driving gear and the connecting gear.

[0008] Preferably, the second smoke exhaust pipe forms a sliding structure through a sliding groove and a sliding rod, and the sliding rod is provided in two groups.

[0009] Preferably, the filter bracket forms a locking structure with the limiting plate through the limiting hole and the limiting bolt.

[0010] Preferably, the connecting plate and the locking block form an elastic structure with the installation cavity through a connecting spring, and the locking block is engaged with the locking hole.

[0011] Preferably, the mounting plates are arranged in four groups, and the four groups of mounting plates are distributed in a matrix along the four ends of the second smoke exhaust pipe.

[0012] The utility model is beneficial in that:

[0013] 2. The utility model rotates the driving gear through the hand wheel, driving the threaded rod inside the connecting gear to rotate, thereby realizing the extension and retraction of the second exhaust pipes on both sides on the first exhaust pipe through the positioning groove and the positioning block, so that the exhaust pipe can adapt to different working environments and usage scenarios. During installation, the extension and retraction adjustment can be performed as needed, and then the second exhaust pipe slides between the sliding groove and the sliding rod to ensure the stability of the second exhaust pipe during the extension and retraction adjustment;

[0014] 3. The filter bracket set up in this utility model prevents large particles from being sucked into the interior of the smoke pipe. The filter bracket is then installed by engaging with the limit plate through the limit hole and the limit bolt. The connecting plate is then compressed inside the installation cavity along the connecting spring through the pull rod to separate the locking block from the locking hole, making it easy to disassemble and install the filter bracket and to clean it after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the telescopic structure of the second smoke exhaust pipe of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of the second smoke exhaust pipe of the present invention.

[0019] In the figure: 1. First smoke exhaust pipe; 2. Mounting seat; 3. Driving gear; 4. Connecting gear; 5. Threaded rod; 6. Fixing plate; 7. Sliding rod; 8. Second smoke exhaust pipe; 9. Positioning groove; 10. Sliding groove; 11. Positioning block; 12. Mounting cavity; 13. Connecting plate; 14. Locking block; 15. Limiting plate; 16. Limiting hole; 17. Limiting bolt; 18. Filter bracket; 19. Locking hole; 20. Mounting cavity; 21. Mounting plate; 22. Threaded hole. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1

[0022] See also Figure 1-3 As shown, a telescopic and adjustable smoke exhaust pipe includes a first smoke exhaust pipe 1 and a telescopic mechanism arranged above the first smoke exhaust pipe 1. The telescopic mechanism includes a mounting seat 2, a driving gear 3 and a connecting gear 4. The front end face of the first smoke exhaust pipe 1 is mounted with a mounting seat 2, the interior of the mounting seat 2 is mounted with a driving gear 3, both sides of the driving gear 3 are meshed with connecting gears 4, a threaded rod 5 is mounted inside the connecting gear 4, and a second smoke exhaust pipe 8 is mounted on the outer surface of the threaded rod 5. A fixing plate 6 is mounted on the side wall of the mounting seat 2, and a sliding rod 7 is mounted on the left side wall of the fixing plate 6. Positioning blocks 1 are mounted on both sides of the front end face of the first smoke exhaust pipe 1. 1. A positioning groove 9 is provided on the inner wall of the second smoke exhaust pipe 8, and a slide groove 10 is provided above the positioning groove 9. A mounting cavity 12 is provided inside the upper end of the second smoke exhaust pipe 8. A connecting spring 20 is installed on the inner wall of the mounting cavity 12. A connecting plate 13 is installed at the end of the connecting spring 20. A locking block 14 is installed on the lower end surface of the connecting plate 13. A limiting plate 15 is installed on the inner wall of the second smoke exhaust pipe 8. A limiting hole 16 is provided on the inner wall of the limiting plate 15. A limiting bolt 17 is installed inside the limiting hole 16. A filter bracket 18 is installed at the end of the limiting bolt 17. A locking hole 19 is provided on the upper end surface of the filter bracket 18.

[0023] Furthermore, the second smoke exhaust pipe 8 forms a sliding structure with the first smoke exhaust pipe 1 through the threaded rod 5, the positioning groove 9 and the positioning block 11. The threaded rod 5 forms a rotating structure through the driving gear 3 and the connecting gear 4. The second smoke exhaust pipe 8 forms a sliding structure with the slide rod 7 through the slide groove 10. The slide rod 7 is set into two groups. The driving gear 3 is rotated by the handwheel to drive the threaded rod 5 inside the connecting gear 4 to rotate, thereby realizing the extension and retraction of the second smoke exhaust pipes 8 on both sides on the first smoke exhaust pipe 1 through the positioning groove 9 and the positioning block 11, so that the smoke exhaust pipe can adapt to different working environments and usage scenarios. It can be extended and retracted as needed during installation, and then the second smoke exhaust pipe 8 slides between the slide groove 10 and the slide rod 7 to ensure the stability of the second smoke exhaust pipe 8 during extension and retraction adjustment.

[0024] Furthermore, the filter bracket 18 forms a locking structure with the limit plate 15 through the limit hole 16 and the limit bolt 17, and the connecting plate 13 and the locking block 14 form an elastic structure with the installation cavity 12 through the connecting spring 20. The locking block 14 is connected to the locking hole 19 in a locking connection. The filter bracket 18 is set to prevent large particles from being sucked into the interior of the smoke pipe. Then the filter bracket 18 is installed by locking between the limit hole 16 and the limit bolt 17 and the limit plate 15, and then the connecting plate 13 is compressed along the connecting spring 20 inside the installation cavity 12 by the pull rod, so that the locking block 14 is separated from the locking hole 19, which is convenient for disassembly and installation of the filter bracket 18 and convenient for cleaning after long-term use.

[0025] Example 2

[0026] See also Figure 1 and Figure 3 As shown, in contrast to Example 1, as another embodiment of the present invention, four ends of the second smoke exhaust pipe 8 are mounted with mounting plates 21 , and threaded holes 22 are provided inside the mounting plates 21 .

[0027] Furthermore, the mounting plates 21 are arranged in four groups, and the four groups of mounting plates 21 are distributed in a matrix along the four ends of the second smoke exhaust pipe 8. The arranged mounting plates 21 can be used to hang the equipment on the wall by bolts.

[0028] Working principle: First, when installing the equipment, the driving gear 3 is rotated by the handwheel to drive the threaded rod 5 inside the connecting gear 4 to rotate, so that the second smoke exhaust pipes 8 on both sides are extended and retracted on the first smoke exhaust pipe 1 through the positioning groove 9 and the positioning block 11, so that the smoke exhaust pipe can adapt to different working environments and usage scenarios. During installation, it is extended and retracted as needed, which is convenient for adjusting the smoke exhaust pipe according to needs. Then the filter bracket 18 is set to prevent large particles from being sucked into the interior of the smoke pipe. Then the filter bracket 18 is installed by engaging with the limit plate 15 through the limit hole 16 and the limit bolt 17. Then, the connecting plate 13 is compressed along the connecting spring 20 inside the installation cavity 12 through the pull rod, so that the locking block 14 is separated from the locking hole 19, which is convenient for disassembly and installation of the filter bracket 18, and convenient for cleaning after long-term use to protect the equipment.

[0029] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A telescopic and adjustable smoke exhaust pipe, comprising a first smoke exhaust pipe (1) and a telescopic mechanism arranged above the first smoke exhaust pipe (1), characterized in that: The telescopic mechanism comprises a mounting seat (2), a driving gear (3) and a connecting gear (4); the front end surface of the first smoke exhaust pipe (1) is mounted with a mounting seat (2); the interior of the mounting seat (2) is mounted with a driving gear (3); both sides of the driving gear (3) are meshed with connecting gears (4); the interior of the connecting gear (4) is mounted with a threaded rod (5); the outer surface of the threaded rod (5) is mounted with a second smoke exhaust pipe (8); the side wall of the mounting seat (2) is mounted with a fixing plate (6); the left side wall of the fixing plate (6) is mounted with a sliding rod (7); positioning blocks (11) are mounted on both sides of the front end surface of the first smoke exhaust pipe (1); the inner wall of the second smoke exhaust pipe (8) is provided with a positioning groove (9); A sliding groove (10) is provided above the positioning groove (9), an installation cavity (12) is provided inside the upper end of the second smoke exhaust pipe (8), a connecting spring (20) is installed on the inner wall of the installation cavity (12), a connecting plate (13) is installed at the end of the connecting spring (20), a locking block (14) is installed on the lower end surface of the connecting plate (13), a limiting plate (15) is installed on the inner wall of the second smoke exhaust pipe (8), a limiting hole (16) is provided on the inner wall of the limiting plate (15), a limiting bolt (17) is installed inside the limiting hole (16), a filter bracket (18) is installed at the end of the limiting bolt (17), and a locking hole (19) is provided on the upper end surface of the filter bracket (18).

2. The telescopic and adjustable smoke exhaust pipe according to claim 1, characterized in that: The four ends of the second smoke exhaust pipe (8) are mounted with mounting plates (21), and threaded holes (22) are provided inside the mounting plates (21).

3. The telescopic and adjustable smoke exhaust pipe according to claim 1, characterized in that: The second smoke exhaust pipe (8) forms a sliding structure with the first smoke exhaust pipe (1) through the threaded rod (5), the positioning groove (9) and the positioning block (11), and the threaded rod (5) forms a rotating structure through the driving gear (3) and the connecting gear (4).

4. The telescopic and adjustable smoke exhaust pipe according to claim 1, characterized in that: The second smoke exhaust pipe (8) forms a sliding structure with the sliding rod (7) through the sliding groove (10), and the sliding rod (7) is provided in two groups.

5. The telescopic and adjustable smoke exhaust pipe according to claim 1, characterized in that: The filter bracket (18) forms a snap-fit ​​structure with the limiting plate (15) through the limiting hole (16) and the limiting bolt (17).

6. The telescopic and adjustable smoke exhaust pipe according to claim 1, characterized in that: The connecting plate (13) and the locking block (14) form an elastic structure with the installation cavity (12) via a connecting spring (20), and the locking block (14) is engaged with the locking hole (19).

7. The telescopic and adjustable smoke exhaust pipe according to claim 2, characterized in that: The mounting plates (21) are arranged in four groups, and the four groups of mounting plates (21) are distributed in a matrix along the four ends of the second smoke exhaust pipe (8).

Images