Elliptical handle type manual regulating valve

Abstract

The utility model discloses an oval handle type manual regulating valve which comprises a mounting frame, a valve body is arranged in an inner cavity of the mounting frame, a plurality of baffles are arranged in an inner cavity of the valve body, a rotating rod is connected to the center of the bottom of each baffle, a bottom box is arranged at the bottom of the mounting frame, a protective frame is arranged at the top of the bottom box, and a cover plate is arranged at the top of the protective frame. A plurality of gears are rotatably arranged in an inner cavity of the protection frame, outer rings of the gears are jointly sleeved with a toothed belt, a rotating groove is axially formed in an inner cavity of the bottom box in a penetrating mode, a crank is rotatably arranged in an inner cavity of the rotating groove, an anti-scraping pad is arranged on the inner wall of the valve body, and a groove is formed in the inner wall of the anti-scraping pad. And through cooperative use of the anti-scraping pad and the groove, direct contact between the baffle and the valve body can be avoided, and the situation that gaps are generated due to mutual friction between the structures, and consequently the sealing performance of the valve is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valves, in particular to an elliptical handle type manual regulating valve. Background Art

[0002] The air volume regulating valve, also known as the damper, is an indispensable central air-conditioning terminal accessory in the ventilation, air conditioning and air purification projects of industrial plants and civil buildings. It is generally used in air-conditioning and ventilation system pipes to adjust the air volume of the branch pipes. It can also be used for the mixing and adjustment of fresh air and return air.

[0003] After searching, in the prior art, a utility model with announcement number CN216078337U discloses a manual air volume regulating valve, comprising a shell, a symmetrical rotating rod is horizontally arranged inside the shell, a fan blade is fixedly arranged on the rod wall of the rotating rod, an operating cover is fixedly arranged on the right side wall of the shell, the left ends of the two rotating rods are rotatably connected to the left side wall of the shell through a first bearing, the right ends of the two rotating rods pass through the right side wall of the shell and extend to the interior of the operating cover and are fixedly provided with a gear plate, a symmetrical connecting block is fixedly arranged on the right end of the inner wall of the operating cover, a screw rod is rotatably arranged between the two connecting blocks through a second bearing, a first bevel gear is fixedly arranged on the upper end of the screw rod, and an adjusting rod is rotatably arranged on the upper end of the right side wall of the operating cover, when the air volume needs to be adjusted, it can be achieved through simple operation, and the operation is convenient.

[0004] And the prior art, a manual split multi-leaf air volume regulating valve with announcement number CN218031464U.

[0005] The above-mentioned technical solutions, through different methods, make the use effect of the regulating valve better, but the above-mentioned methods still have the following shortcomings: when the wind shield structure rotates, there will be certain scratches between its side wall and the valve body, which will easily cause noise during adjustment, and after long-term scratches, there will be a certain gap between the wind shield structure and the valve body, which will affect the sealing of the regulating valve. Utility Model Content

[0006] The utility model aims to provide an elliptical handle type manual regulating valve to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: comprising a mounting frame, the inner cavity of the mounting frame is provided with a valve body, the inner cavity of the valve body is provided with a plurality of baffles, a rotating rod is connected to the bottom center position of the baffle, a bottom box is provided at the bottom of the mounting frame, a protective frame is provided at the top of the bottom box, a cover plate is provided at the top of the protective frame, a plurality of gears are rotatably provided in the inner cavity of the protective frame, a toothed belt is commonly sleeved on the outer rings of the plurality of gears, a rotating groove is axially penetrated through the inner cavity of the bottom box, a crank is rotatably provided in the inner cavity of the rotating groove, an anti-scratch pad is provided on the inner wall of the valve body, and a groove is provided on the inner wall of the anti-scratch pad.

[0008] Preferably, one end of the rotating rod is fixedly connected to the top of the gear, one end of the crank is fixedly connected to the bottom of the gear, and the edge of the baffle is rounded.

[0009] Preferably, the outer ring of the crank is provided with an anti-slip sleeve, the inner wall of the protective frame is provided with a plurality of fixing rods, one end of the fixing rod is provided with a roller, and the roller is located between two gears.

[0010] Preferably, a mounting groove is provided on the front side of the valve body, and a filter plate is movably provided in the inner cavity of the mounting groove.

[0011] Preferably, a shell is provided on the back side of the mounting frame, and a fan is provided in the inner cavity of the shell.

[0012] Preferably, a screw is provided on the front side of the mounting frame, a pressure plate is provided on the outer ring of the screw, a nut is threadedly connected to the outer ring of the screw, a limiting hole is formed through the inner cavity of the pressure plate, a limiting rod is provided on the front side of the valve body, and the limiting rod is movably connected to the limiting hole.

[0013] Preferably, mounting plates are provided on both sides of the mounting frame, a mounting hole is penetrated through the front side of the mounting plate, a support rod is provided on the outer wall of the shell, a connecting block is provided at one end of the support rod, and a connecting hole is penetrated through the inner cavity of the connecting block.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The oval handle manual regulating valve can avoid direct contact between the baffle and the valve body through the use of anti-scratch pads and grooves, and avoid gaps between structures due to mutual friction, which affects the sealing of the valve.

[0016] 2. The oval handle manual regulating valve uses a filter plate, which is located just in front of the baffle. It is used to filter the air entering the device to prevent dust and other impurities in the outside air from entering the valve body, making it difficult to clean, so as to improve practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the valve body structure of the utility model.

[0019] Figure 3 This is a schematic diagram of the fan structure of the utility model.

[0020] Figure 4 This is a schematic diagram of the baffle structure of the utility model.

[0021] Figure 5 It is a disassembly schematic diagram of the bottom box structure of the utility model.

[0022] Figure 6 For this utility model Figure 1 A schematic diagram of the enlarged structure in the middle.

[0023] In the figure: 1. mounting frame; 2. bottom box; 3. mounting plate; 4. mounting hole; 5. valve body; 6. filter plate; 7. cover plate; 8. rotating groove; 9. crank; 10. anti-slip sleeve; 11. protective frame; 12. gear; 13. toothed belt; 14. fixing rod; 15. roller; 16. screw; 17. pressure plate; 18. nut; 19. limiting rod; 20. limiting hole; 21. anti-scratch pad; 22. groove; 23. rotating rod; 24. baffle; 25. housing; 26. fan; 27. support rod; 28. connecting block; 29. ​​connecting hole; 30. mounting groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example: See Figure 1-6The utility model provides a technical solution: an elliptical handle type manual regulating valve, comprising a mounting frame 1, an inner cavity of the mounting frame 1 is provided with a valve body 5, an inner cavity of the valve body 5 is provided with a plurality of baffles 24, a rotating rod 23 is connected to the bottom center of the baffle 24, a bottom box 2 is provided at the bottom of the mounting frame 1, a protective frame 11 is provided at the top of the bottom box 2, a cover plate 7 is provided at the top of the protective frame 11, a plurality of gears 12 are rotatably provided in the inner cavity of the protective frame 11, a toothed belt 13 is commonly sleeved on the outer rings of the plurality of gears 12, a rotating groove 8 is axially penetrated through the inner cavity of the bottom box 2, a crank 9 is rotatably provided in the inner cavity of the rotating groove 8, an anti-scratch pad 21 is provided on the inner wall of the valve body 5, and a groove 22 is provided on the inner wall of the anti-scratch pad 21.

[0026] Among them, one end of the rotating rod 23 is fixedly connected to the top of the gear 12, one end of the crank 9 is fixedly connected to the bottom of the gear 12, and the edge of the baffle 24 is rounded.

[0027] In this embodiment, the gear 12 is rotated by the crank 9, and the gear 12 drives the rotating rod 23. At this time, the rotating rod 23 drives the baffle 24 to rotate to open the valve body 5. Between 0 and 90 degrees of the rotation of the baffle 24, the larger the value, the greater the ventilation volume, and vice versa, the valve body 5 can be closed; the toothed belt 13 is used for the linkage between multiple gears 12, so that multiple baffles 24 can rotate at the same time, thereby improving the working efficiency of the valve body 5;

[0028] The anti-scratch pad 21 is made of rubber, which is soft and elastic as a whole. It can avoid direct contact between the baffle 24 and the valve body 5, and avoid gaps between the structures due to mutual friction, which affects the sealing of the valve. After the valve body 5 is closed, the edge of the baffle 24 will be embedded in the groove 22 to avoid gaps between the baffle 24 and the valve body 5, so as to improve the sealing. The edge of the baffle 25 is rounded. After this arrangement, the baffle 25 can be prevented from damaging the anti-scratch pad 21 when rotating, so as to improve the service life of the device.

[0029] The outer ring of the crank 9 is provided with an anti-slip sleeve 10 , the inner wall of the protective frame 11 is provided with a plurality of fixing rods 14 , one end of the fixing rod 14 is provided with a roller 15 , and the roller 15 is located between the two gears 12 .

[0030] In this embodiment, the anti-skid sleeve 10 plays an anti-skid role, which can facilitate the staff to turn the crank 9; the fixing rod 14 is used for the installation of the roller 15, refer to Figure 5 The two rollers 15 squeeze the toothed belt 13 between the two gears 12 so that the toothed belt 13 can be close to the outer ring of the gear 12 to avoid looseness between the toothed belt 13 and the gear 12, thereby ensuring that the toothed belt 13 can drive multiple gears 12 to rotate simultaneously.

[0031] A mounting groove 30 is provided on the front of the valve body 5 , and a filter plate 6 is movably provided in the inner cavity of the mounting groove 30 .

[0032] In this embodiment, the filter plate 6 is located directly in front of the baffle 24 and is used to filter the air entering the device to prevent dust and other impurities in the outside air from entering the valve body 5, which would make it difficult to clean, thereby improving practicality.

[0033] A shell 25 is disposed on the back of the mounting frame 1 , and a fan 26 is disposed in the inner cavity of the shell 25 .

[0034] In this embodiment, the fan 26 is located directly behind the baffle 24. After being started, the air flow rate can be accelerated. When necessary, the exhaust work of the regulating valve can be quickly completed, further improving the practicality.

[0035] Among them, a screw 16 is arranged on the front of the mounting frame 1, and a pressure plate 17 is arranged on the outer ring of the screw 16. A nut 18 is threadedly connected to the outer ring of the screw 16. A limiting hole 20 is formed through the inner cavity of the pressure plate 17. A limiting rod 19 is arranged on the front of the valve body 5, and the limiting rod 19 is movably connected to the limiting hole 20.

[0036] Among them, mounting plates 3 are provided on both sides of the mounting frame 1, and a mounting hole 4 is opened through the front of the mounting plate 3. A support rod 27 is provided on the outer wall of the shell 25, and a connecting block 28 is provided at one end of the support rod 27. A connecting hole 29 is opened through the inner cavity of the connecting block 28.

[0037] In this embodiment, after the filter plate 6 is placed in the installation groove 30, the nut 18 is rotated. At this time, the nut 18 moves on the outer ring of the screw rod 16 through the thread and squeezes the pressure plate 17. At this time, one end of the pressure plate 17 will squeeze the filter plate 6, thereby limiting the position of the filter plate 6 in the installation groove 30 to prevent the filter plate 6 from falling off during use; the limiting rod 19 and the limiting hole 20 play a limiting role to prevent the pressure plate 17 from shaking during use; the support rod 27 and the connecting block 28 are used for the connection between the shell 25 and the mounting frame 1. When in use, fasteners such as bolts are passed through the connecting hole 29 and connected to the mounting frame 1 to complete the installation of the shell 25. The overall installation and disassembly are relatively convenient, which can improve the convenience of use.

[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oval handle type manual regulating valve, comprising a mounting frame (1), characterized in that: The inner cavity of the mounting frame (1) is provided with a valve body (5), the inner cavity of the valve body (5) is provided with a plurality of baffles (24), the bottom center position of the baffle (24) is connected with a rotating rod (23), the bottom of the mounting frame (1) is provided with a bottom box (2), the top of the bottom box (2) is provided with a protective frame (11), the top of the protective frame (11) is provided with a cover plate (7), the inner cavity of the protective frame (11) is provided with a plurality of gears (12) for rotation, the outer rings of the plurality of gears (12) are jointly sleeved with a toothed belt (13), the inner cavity of the bottom box (2) is provided with a rotating groove (8) axially penetrating therethrough, the inner cavity of the rotating groove (8) is provided with a crank (9) for rotation, the inner wall of the valve body (5) is provided with an anti-scratch pad (21), and the inner wall of the anti-scratch pad (21) is provided with a groove (22).

2. The oval handle type manual regulating valve according to claim 1, characterized in that: One end of the rotating rod (23) is fixedly connected to the top of the gear (12), one end of the crank (9) is fixedly connected to the bottom of the gear (12), and the edge of the baffle (24) is rounded.

3. The oval handle type manual regulating valve according to claim 1, characterized in that: The outer ring of the crank (9) is provided with an anti-slip sleeve (10), the inner wall of the protection frame (11) is provided with a plurality of fixing rods (14), one end of the fixing rod (14) is provided with a roller (15), and the roller (15) is located between the two gears (12).

4. The oval handle type manual regulating valve according to claim 1, characterized in that: The front surface of the valve body (5) is provided with a mounting groove (30), and a filter plate (6) is movably arranged in the inner cavity of the mounting groove (30).

5. The oval handle type manual regulating valve according to claim 1, characterized in that: A shell (25) is arranged on the back of the mounting frame (1), a fan (26) is arranged in the inner cavity of the shell (25), a support rod (27) is arranged on the outer wall of the shell (25), a connecting block (28) is arranged at one end of the support rod (27), and a connecting hole (29) is opened through the inner cavity of the connecting block (28).

6. The oval handle type manual regulating valve according to claim 1, characterized in that: A screw rod (16) is arranged on the front of the mounting frame (1), a pressure plate (17) is arranged on the outer ring of the screw rod (16), a nut (18) is threadedly connected to the outer ring of the screw rod (16), a limiting hole (20) is formed through the inner cavity of the pressure plate (17), and a limiting rod (19) is arranged on the front of the valve body (5), and the limiting rod (19) is movably connected to the limiting hole (20).

7. The oval handle type manual regulating valve according to claim 1, characterized in that: Mounting plates (3) are provided on both sides of the mounting frame (1), and mounting holes (4) are provided through the front of the mounting plates (3).

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