Elliptical worm and gear type manual regulating valve

Abstract

The utility model discloses an oval worm and gear type manual regulating valve which comprises a mounting frame, mounting plates are arranged on the two sides of the mounting frame, mounting holes are formed in the front faces of the mounting plates in a penetrating mode, 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, and rotating rods are connected to the centers of the bottoms of the baffles. The outer ring of the rotating rod is sleeved with a worm gear, and a bottom box is arranged at the bottom of the mounting frame. Through cooperative use of a flow guide rod, a buffer groove, a buffer spring, a fixing rod and a buffer plate, after the flow guide rod disperses airflow, the impact of the airflow on the baffle can be reduced, the airflow exists inside and outside the baffle, the resistance of the baffle to the external airflow can be improved to a certain degree, and when the external airflow impacts the baffle, the baffle is prevented from being damaged. And the buffer plate compresses the buffer spring through the fixing rod, and at the moment, the buffer spring rebounds or counteracts the impact force, so that the impact of the airflow on the baffle is further relieved, and the overall service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valves, in particular to an elliptical worm gear 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 publication number CN212360991U discloses a manual air volume regulating valve with a locking structure, including a valve body, a first blade and a second blade are movably connected between the left and right sides of the inner wall of the valve body, the right end of the blade shaft of the first blade passes through the right side of the inner wall of the valve body and is provided with a first driven gear, the right end of the blade shaft of the second blade passes through the right side of the inner wall of the valve body and is provided with a second driven gear, a U-shaped fixing plate is vertically provided in the middle of the right side of the valve body, a crank is rotatably connected in the middle of the outer side of the U-shaped fixing plate, the end of the crank passes through the side of the U-shaped fixing plate and is provided with a driving gear, and a locking device is movably connected in the middle of the crank. The manual air volume regulating valve with a locking structure fixes the position of the crank through the locking device, thereby preventing the first blade and the second blade from rotating after long-term use, ensuring the normal use of the manual air volume regulating valve.

[0004] And the prior art, a manual air volume regulating valve with publication number CN210088016U.

[0005] The above-mentioned various technical solutions make the use effect of the regulating valve better through different methods, but the above-mentioned various methods still have the following shortcomings. After the valve is opened, the airflow will cause a certain impact on the baffle when entering the valve. Since the gear serves as the locking and transmission structure of the baffle, the impact force is ultimately borne by the gear. After a long time, the gear will be severely worn, and eventually it will be difficult for the teeth to mesh, affecting the overall service life. Utility Model Content

[0006] The utility model aims to provide an elliptical worm gear 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: it includes a mounting frame, mounting plates are arranged on both sides of the mounting frame, a mounting hole is penetrated through the front side of the mounting plate, a valve body is arranged in the inner cavity of the mounting frame, a plurality of baffles are arranged in the inner cavity of the valve body, a rotating rod is connected to the bottom center position of the baffle, a worm gear is arranged on the outer ring of the rotating rod, a bottom box is arranged at the bottom of the mounting frame, a worm is arranged in the inner cavity of the bottom box, a turntable is connected to one end of the worm, a handle is arranged on the side wall of the turntable, a plurality of guide rods are distributed in the inner cavity of the baffle, a buffer plate is arranged on the front side of the baffle, and a plurality of fixing rods are arranged on the back side of the buffer plate.

[0008] Preferably, the worm and the worm wheel are meshed with each other, and the two guide rods are spaced a certain distance apart.

[0009] Preferably, a buffer groove is provided in the inner cavity of the guide rod, a plurality of buffer springs are arranged in the inner cavity of the buffer groove, and the fixing rod is movably connected to the buffer groove.

[0010] Preferably, the inner wall of the baffle is connected to a plurality of sleeve rods, the inner cavity of the sleeve rods is provided with a limiting groove, a limiting ring is provided at one end of the limiting groove, a T-shaped limiting rod is movably provided in the inner cavity of the limiting ring, and one end of the T-shaped limiting rod is fixedly connected to the buffer plate.

[0011] Preferably, a plurality of Z-shaped sealing rods are fixedly disposed in the inner cavity of the valve body, and the Z-shaped sealing rods are located between two baffles.

[0012] Preferably, a T-shaped sleeve rod is provided on one side of the bottom box, and positioning holes are provided on the side walls of the T-shaped sleeve rod and the turntable, and a positioning screw is threadedly connected to the inner cavity of the positioning hole.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The elliptical worm gear manual regulating valve, through the coordinated use of the guide rod, buffer groove, buffer spring, fixed rod and buffer plate, can reduce the impact of the airflow on the baffle after the guide rod disperses the airflow. There is airflow both inside and outside the baffle, which can improve the baffle's resistance to external airflow to a certain extent. When the external airflow impacts the baffle, the buffer plate compresses the buffer spring through the fixed rod. At this time, the buffer spring rebounds or offsets the impact force to further reduce the impact of the airflow on the baffle, thereby improving the overall service life.

[0015] 2. The elliptical worm gear manual regulating valve uses a Z-shaped sealing rod. The Z-shaped sealing rod can seal the gap between the two baffles when the valve body is closed, thereby improving the overall sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0017] Figure 2 This is a schematic diagram of the bottom box structure of the utility model.

[0018] Figure 3 It is a cross-sectional schematic diagram of the sleeve rod structure of the utility model.

[0019] Figure 4 The figure is a schematic diagram of the disassembly of the guide rod structure of the utility model.

[0020] Figure 5 This is a schematic diagram of the structure of the Z-shaped sealing rod of the utility model.

[0021] Figure 6 It is a schematic diagram of the disassembly of the baffle structure of the utility model.

[0022] In the figure: 1. mounting frame; 2. mounting plate; 3. mounting hole; 4. valve body; 5. baffle; 6. buffer plate; 7. guide rod; 8. sleeve rod; 9. buffer groove; 10. buffer spring; 11. fixing rod; 12. limit groove; 13. limit ring; 14. T-shaped limit rod; 15. worm; 16. T-shaped sleeve rod; 17. positioning hole; 18. turntable; 19. handle; 20. positioning screw; 21. worm gear; 22. rotating rod; 23. Z-shaped sealing rod; 24. bottom box. DETAILED DESCRIPTION

[0023] 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.

[0024] Example: See Figure 1-6 The utility model provides a technical solution: an elliptical worm gear type manual regulating valve, comprising a mounting frame 1, mounting plates 2 are arranged on both sides of the mounting frame 1, a mounting hole 3 is penetrated through the front of the mounting plate 2, a valve body 4 is arranged in the inner cavity of the mounting frame 1, a plurality of baffles 5 are arranged in the inner cavity of the valve body 4, a rotating rod 22 is connected to the bottom center position of the baffle 5, a worm gear 21 is arranged on the outer ring sleeve of the rotating rod 22, a bottom box 24 is arranged at the bottom of the mounting frame 1, a worm 15 is arranged in the inner cavity of the bottom box 24, a turntable 18 is connected to one end of the worm 15, a handle 19 is arranged on the side wall of the turntable 18, a plurality of guide rods 7 are distributed in the inner cavity of the baffle 5, a buffer plate 6 is arranged on the front of the baffle 5, and a plurality of fixing rods 11 are arranged on the back of the buffer plate 6.

[0025] The worm 15 and the worm wheel 21 are meshed with each other, and the two guide rods 7 are spaced a certain distance apart.

[0026] The inner cavity of the guide rod 7 is provided with a buffer groove 9 , the inner cavity of the buffer groove 9 is provided with a plurality of buffer springs 10 , and the fixing rod 11 is movably connected to the buffer groove 9 .

[0027] In this embodiment, the handle 19 drives the turntable 18 to rotate, thereby driving the worm 15 to rotate. At this time, the worm 15 drives the baffle 5 to rotate through the worm gear 21, thereby opening the valve body 4. At this time, the airflow can pass through the gap between the two baffles 5, and the user can adjust the amount of airflow according to the rotation amplitude of the baffle 5; when the airflow passes through the inner cavity of the baffle 5, it will be dispersed by the guide rod 7 to reduce the impact of the airflow on the baffle 5, and the airflow passes through the inside and outside of the baffle 5 at the same time, which can improve the resistance of the baffle 5 to the external airflow to a certain extent, thereby reducing the amplitude of the worm gear 21 driven by the baffle 5 to rotate under the impact of the airflow; when the external airflow causes an impact on the baffle 5, the buffer plate 6 compresses the buffer spring 10 through the fixing rod 11. At this time, the buffer spring 10 rebounds or offsets the impact force to further reduce the impact on the baffle 5 when the airflow passes.

[0028] Among them, the inner wall of the baffle 5 is connected to multiple sleeve rods 8, the inner cavity of the sleeve rod 8 is provided with a limiting groove 12, one end of the limiting groove 12 is provided with a limiting ring 13, and the inner cavity of the limiting ring 13 is movably provided with a T-shaped limiting rod 14, one end of the T-shaped limiting rod 14 is fixedly connected to the buffer plate 6.

[0029] In this embodiment, when the buffer plate 6 is pushed by the airflow, the T-shaped limit rod 14 connected to its back side moves in the inner cavity of the limit groove 12; there are four T-shaped limit rods 14, which can limit the movement trajectory of the buffer plate 6 to prevent the buffer plate 6 from shaking.

[0030] A plurality of Z-shaped sealing rods 23 are fixedly disposed in the inner cavity of the valve body 4 , and the Z-shaped sealing rods 23 are located between the two baffles 5 .

[0031] In this embodiment, when the valve body 4 is closed, the gap between the two baffles 5 will be sealed by the Z-shaped sealing rod 23 to prevent airflow from penetrating through the gap, thereby improving the overall sealing performance.

[0032] A T-shaped sleeve rod 16 is disposed on one side of the bottom box 24 , and positioning holes 17 are formed on the side walls of the T-shaped sleeve rod 16 and the turntable 18 , and a positioning screw 20 is threadedly connected to the inner cavity of the positioning hole 17 .

[0033] In this embodiment, one end of the positioning screw 20 is passed through the positioning hole 17 opened by the turntable 18 and connected to the positioning hole 17 opened by the T-shaped sleeve 16, so that the position of the turntable 18 can be fixed, thereby locking the position of the baffle 5 to limit the expansion range of the baffle 5, thereby maintaining the current ventilation volume; after the positioning screw 20 is removed, the turntable 18 can be rotated to adjust the ventilation volume.

[0034] 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.

[0035] 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 elliptical worm gear type manual regulating valve, comprising a mounting frame (1), characterized in that: Mounting plates (2) are provided on both sides of the mounting frame (1), and a mounting hole (3) is provided through the front of the mounting plate (2). A valve body (4) is provided in the inner cavity of the mounting frame (1), and a plurality of baffles (5) are provided in the inner cavity of the valve body (4). A rotating rod (22) is connected to the center of the bottom of the baffle (5), and a worm gear (21) is provided on the outer ring of the rotating rod (22). A bottom box (24) is provided at the bottom of the mounting frame (1), and a worm (15) is provided in the inner cavity of the bottom box (24). A rotating disk (18) is connected to one end of the worm (15), and a handle (19) is provided on the side wall of the rotating disk (18). A plurality of guide rods (7) are distributed in the inner cavity of the baffle (5), a buffer plate (6) is provided on the front of the baffle (5), and a plurality of fixing rods (11) are provided on the back of the buffer plate (6).

2. The elliptical worm gear manual regulating valve according to claim 1, characterized in that: The worm (15) and the worm wheel (21) are meshed with each other, and the two guide rods (7) are spaced a certain distance apart.

3. The elliptical worm gear manual regulating valve according to claim 1, characterized in that: The inner cavity of the guide rod (7) is provided with a buffer groove (9), the inner cavity of the buffer groove (9) is provided with a plurality of buffer springs (10), and the fixing rod (11) is movably connected to the buffer groove (9).

4. The elliptical worm gear manual regulating valve according to claim 1, characterized in that: The inner wall of the baffle plate (5) is connected to a plurality of sleeve rods (8), the inner cavity of the sleeve rod (8) is provided with a limit groove (12), one end of the limit groove (12) is provided with a limit ring (13), the inner cavity of the limit ring (13) is movably provided with a T-shaped limit rod (14), and one end of the T-shaped limit rod (14) is fixedly connected to the buffer plate (6).

5. The elliptical worm gear manual regulating valve according to claim 1, characterized in that: A plurality of Z-shaped sealing rods (23) are fixedly arranged in the inner cavity of the valve body (4), and the Z-shaped sealing rods (23) are located between two baffles (5).

6. The elliptical worm gear manual regulating valve according to claim 1, characterized in that: A T-shaped sleeve rod (16) is provided on one side of the bottom box (24), and a positioning hole (17) is provided on the side wall of the T-shaped sleeve rod (16) and the rotating disk (18), and a positioning screw rod (20) is threadedly connected to the inner cavity of the positioning hole (17).

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