Multi-stage regulation variable air volume valve

Abstract

The utility model relates to the technical field of air volume valves, and discloses a multi-stage adjusting variable air volume valve which comprises a shell, two connecting plates are fixedly connected to the top of the shell, butt joint plates are fixedly connected to the tops of the two connecting plates, a base is arranged at the top of the shell, two sliding grooves are symmetrically formed in the bottom of the base, and the two butt joint plates are slidably connected to the interiors of the sliding grooves. Four lock holes are formed in the tops of the two butt-joint plates, restraining mechanisms used for restraining the butt-joint plates are arranged at the bottoms of the four lock holes, a baffle is slidably connected to the interior of the shell, a lifting mechanism used for lifting the baffle is arranged at the top of the shell, butt-joint rings are fixedly connected to the two ends of the shell, and storage grooves are formed in one sides of the two butt-joint rings. Sealing rings are slidably connected to the interiors of the two storage grooves correspondingly, and adjusting mechanisms used for adjusting the sealing rings are arranged on one sides of the two butt joint rings correspondingly. Through the arrangement of the base, it can be ensured that the device can be more convenient to overhaul and maintain.

Description

Technical Field

[0001] This utility model relates to the field of air volume valve technology, and in particular to a multi-stage adjustable variable air volume valve. Background Technology

[0002] A multi-stage adjustable variable air volume (VAV) valve is a device used in ventilation systems, primarily for regulating airflow and achieving more precise environmental control. Unlike traditional single-stage regulating valves, multi-stage adjustable VAV valves can adjust airflow at multiple levels, thus providing more flexible and efficient air distribution. They are widely used in commercial buildings, office buildings, hotels, hospitals, and other locations, suitable for environments requiring flexible airflow adjustment. Multi-stage adjustable VAV valves play a crucial role in modern ventilation systems, contributing to improved system flexibility and energy efficiency.

[0003] However, most existing multi-stage variable air volume valves are connected to the ventilation duct via bolts. Because multiple bolts are independently installed, a lot of time is required to disassemble and install the bolts during maintenance, resulting in low overall work efficiency. Therefore, this problem needs to be solved. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-stage adjustable variable air volume valve.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-stage adjustable variable air volume valve includes a housing. Two connecting plates are fixedly connected to the top of the housing, and a docking plate is fixedly connected to the top of each of the two connecting plates. A base is provided on the top of the housing, and two sliding grooves are symmetrically opened on the bottom of the base. The two docking plates are slidably connected inside the sliding grooves. Four locking holes are opened on the top of each of the two docking plates, and a constraint mechanism for constraining the docking plates is provided at the bottom of each of the four locking holes. A baffle is slidably connected inside the housing, and a lifting mechanism for raising and lowering the baffle is provided on the top of the housing. A docking ring is fixedly connected to both ends of the housing. A storage groove is opened on one side of each of the two docking rings, and a sealing ring is slidably connected inside each of the two storage grooves. An adjustment mechanism for adjusting the sealing ring is provided on one side of each of the two docking rings. The base design ensures that the device can be more easily inspected and maintained.

[0007] As a further embodiment of this utility model, the constraint mechanism includes a locking post, which is slidably connected to the bottom of the slide groove. The locking post and the locking hole are configured to cooperate with each other. A second pull plate is fixedly connected to the bottom of the locking post. A second tension spring is sleeved on the surface of the locking post near the second pull plate. The top end of the second tension spring is fixedly connected to the bottom of the slide groove, and the bottom end of the second tension spring is fixedly connected to the top of the second pull plate. By setting the locking post, the docking plate can be constrained.

[0008] As a further embodiment of this utility model, the lifting mechanism includes a lead screw, which is rotatably connected inside the housing. A baffle is sleeved on the surface of the lead screw, and the baffle and the lead screw are configured to cooperate with each other. A motor is fixedly connected to the top of the lead screw, and the motor is fixedly connected to the top of the housing.

[0009] As a further embodiment of this utility model, the adjusting mechanism includes four connecting columns, all of which are slidably connected to one side of the docking ring and are evenly arranged in a square shape. Each of the four connecting columns is fixedly connected to one side of the sealing ring, and the other end of each of the four connecting columns is fixedly connected to the same first pull plate. Each of the four connecting columns near the first pull plate is fitted with a first tension spring, one end of each of the four first tension springs is fixedly connected to one side of the docking ring, and the other end of each of the four first tension springs is fixedly connected to one side of the first pull plate. The sealing ring can be adjusted by the arrangement of the first pull plate.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. This utility model adopts a technical solution of supporting the shell with a base, which ensures that the device can be more convenient for inspection and maintenance. This effectively solves the problem that because multiple bolts are set independently, a lot of time needs to be spent on disassembling and installing the bolts during inspection and maintenance, resulting in low overall work efficiency. A locking post is installed on the top of the second pull plate. The locking post is initially set inside the docking plate to achieve the purpose of constraining and fixing the shell. When the second pull plate is pulled, the locking post can be pulled out from inside the docking plate to release the constraint on the shell. After the constraint is released, the shell can be removed to achieve the purpose of inspection and maintenance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a multi-stage adjustable variable air volume valve proposed in this utility model.

[0013] Figure 2 This is a schematic diagram of the lifting mechanism of a multi-stage adjustable variable air volume valve proposed in this utility model.

[0014] Figure 3This is a schematic diagram of the constraint mechanism of a multi-stage adjustable variable air volume valve proposed in this utility model.

[0015] In the diagram: 1. Housing; 2. First pull plate; 3. Baffle; 4. Base; 101. Connecting ring; 102. Storage slot; 103. Connecting plate; 104. Connecting plate; 105. Lock hole; 201. Sealing ring; 202. Connecting post; 203. First tension spring; 301. Motor; 302. Lead screw; 401. Slide groove; 402. Locking post; 403. Second tension spring; 404. Second pull plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figures 1-3 A multi-stage adjustable variable air volume valve includes a housing 1. Two connecting plates 103 are fixedly connected to the top of the housing 1, and docking plates 104 are fixedly connected to the top of each of the two connecting plates 103. A base 4 is provided on the top of the housing 1, and two sliding grooves 401 are symmetrically opened on the bottom of the base 4. The two docking plates 104 are slidably connected inside the sliding grooves 401. The housing 1 and the base 4 can be connected through the docking plates 104. Four locking holes 105 are opened on the top of each of the two docking plates 104, and a constraint mechanism for constraining the docking plates 104 is provided at the bottom of each of the four locking holes 105. A baffle 3 is slidably connected inside the housing 1, and a lifting mechanism for raising and lowering the baffle 3 is provided on the top of the housing 1. Dock rings 101 are fixedly connected to both ends of the housing 1. A storage groove 102 is opened on one side of each of the two docking rings 101, and a sealing ring 201 is slidably connected inside each of the two storage grooves 102. An adjustment mechanism for adjusting the sealing ring 201 is provided on one side of each of the two docking rings 101. The base 4 ensures that the device can be more easily inspected and maintained.

[0018] Preferably, the constraint mechanism includes a locking post 402, which is slidably connected to the bottom of the slide groove 401. The locking post 402 and the locking hole 105 are mutually matched. A second pull plate 404 is fixedly connected to the bottom of the locking post 402. A second tension spring 403 is sleeved on the surface of the locking post 402 near the second pull plate 404. The locking post 402 can be reset by the second tension spring 403. The top end of the second tension spring 403 is fixedly connected to the bottom of the slide groove 401, and the bottom end of the second tension spring 403 is fixedly connected to the top of the second pull plate 404. The locking post 402 can constrain the docking plate 104.

[0019] Preferably, the lifting mechanism includes a lead screw 302, which is rotatably connected inside the housing 1. A baffle 3 is sleeved on the surface of the lead screw 302, and the baffle 3 and the lead screw 302 are configured to cooperate with each other. A motor 301 is fixedly connected to the top of the lead screw 302, and the motor 301 is fixedly connected to the top of the housing 1.

[0020] Preferably, the adjustment mechanism includes four connecting posts 202, all of which are slidably connected to one side of the docking ring 101 and are evenly arranged in a square shape. Each of the four connecting posts 202 is fixedly connected to one side of the sealing ring 201, and the other end of each is fixedly connected to the same first pull plate 2. Each of the four connecting posts 202 has a first tension spring 203 fitted onto its surface near the first pull plate 2. The first tension springs 203 allow the sealing ring 201 to be reset. One end of each of the four first tension springs 203 is fixedly connected to one side of the docking ring 101, and the other end is fixedly connected to one side of the first pull plate 2. The first pull plate 2 allows for adjustment of the sealing ring 201.

[0021] Working principle: When the device needs to be inspected and maintained, the second pull plate 404 at the bottom of the base 4 is pulled first. A sliding groove 401 is provided at the bottom of the base 4, and the housing 1 slides inside the sliding groove 401 through the docking plate 104. A locking pin 402 is installed on the top of the second pull plate 404. The locking pin 402 is initially set inside the docking plate 104 to achieve the purpose of constraining and fixing the housing 1. When the second pull plate 404 is pulled, the locking pin 402 can be pulled out from inside the docking plate 104, thereby releasing the constraint on the housing 1. After the constraint is released, the housing 1 can be removed, thereby achieving the purpose of inspection and maintenance. Sealing rings 201 are installed at both ends of the housing 1, and the sealing rings 201 are connected to the housing 1 through the first tension spring 203. After the housing 1 is installed, the sealing rings 201 will be tightly connected to the ventilation pipe under the action of the first tension spring 203, thereby preventing leakage.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-stage adjustable variable air volume valve, comprising a housing (1), characterized in that, Two connecting plates (103) are fixedly connected to the top of the housing (1), and a mating plate (104) is fixedly connected to the top of each of the two connecting plates (103). A base (4) is provided on the top of the housing (1), and two sliding grooves (401) are symmetrically opened at the bottom of the base (4). The two mating plates (104) are slidably connected inside the sliding grooves (401). Four locking holes (105) are opened on the top of each of the two mating plates (104), and the bottom of each of the four locking holes (105) is provided with a restraint mechanism. The constraint mechanism of the connecting plate (104) includes a baffle (3) slidably connected inside the housing (1), a lifting mechanism for raising and lowering the baffle (3) provided on the top of the housing (1), docking rings (101) fixedly connected at both ends of the housing (1), a storage groove (102) provided on one side of each of the two docking rings (101), a sealing ring (201) slidably connected inside each of the two storage grooves (102), and an adjustment mechanism for adjusting the sealing ring (201) provided on one side of each of the two docking rings (101).

2. The multi-stage adjustable variable air volume valve according to claim 1, characterized in that, The restraint mechanism includes a locking pin (402), which is slidably connected to the bottom of the slide groove (401). The locking pin (402) and the lock hole (105) are configured to cooperate with each other. A second pull plate (404) is fixedly connected to the bottom of the locking pin (402).

3. The multi-stage adjustable variable air volume valve according to claim 2, characterized in that, A second tension spring (403) is sleeved on the surface of the locking pin (402) near the second pull plate (404). The top end of the second tension spring (403) is fixedly connected to the bottom of the slide groove (401), and the bottom end of the second tension spring (403) is fixedly connected to the top of the second pull plate (404).

4. The multi-stage adjustable variable air volume valve according to claim 1, characterized in that, The lifting mechanism includes a lead screw (302), which is rotatably connected inside the housing (1). A baffle (3) is sleeved on the surface of the lead screw (302), and the baffle (3) and the lead screw (302) are configured to cooperate with each other. A motor (301) is fixedly connected to the top of the lead screw (302), and the motor (301) is fixedly connected to the top of the housing (1).

5. The multi-stage adjustable variable air volume valve according to claim 1, characterized in that, The adjustment mechanism includes four connecting columns (202), all of which are slidably connected to one side of the docking ring (101), and the four connecting columns (202) are evenly arranged in a square shape. All four connecting columns (202) are fixedly connected to one side of the sealing ring (201), and the other end of the four connecting columns (202) is fixedly connected to the same first pull plate (2).

6. The multi-stage adjustable variable air volume valve according to claim 5, characterized in that, Each of the four connecting posts (202) is fitted with a first tension spring (203) on the side of the first pull plate (2). One end of each of the four first tension springs (203) is fixedly connected to one side of the docking ring (101), and the other end of each of the four first tension springs (203) is fixedly connected to one side of the first pull plate (2).

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