A manual air volume control valve with an external operating mechanism

Abstract

The utility model relates to the field of manual air valve, concretely relates to a manual air volume regulating valve of operating mechanism external, the utility model sets up air valve shell, shell end plate, valve plate connecting shaft, valve plate main part, connecting rod subassembly, transmission assembly, operating subassembly, scale board and locking assembly, operating subassembly and scale board cooperation constitute the external operating mechanism of manual air valve, and the valve plate main part is installed in the air valve shell inside through valve plate connecting shaft, drives transmission assembly to rotate through operating subassembly when using, drives connecting rod subassembly to rotate through transmission assembly, further drives valve plate connecting shaft to rotate through connecting rod subassembly, drives valve plate main part to rotate through rotating valve plate connecting shaft, reach the operation of opening and closing valve plate main part, determine the rotation angle of operating subassembly through scale board in the operation process to judge the opening angle of valve plate main part, can avoid the problem of inconvenient operation because of the operation space limitation when regulating the opening of manual air valve.

Description

Technical Field

[0001] This utility model relates to the field of manual air valves, specifically to a manual air volume regulating valve with an external operating mechanism. Background Technology

[0002] A manual air damper is a device installed on ventilation ducts to manually adjust airflow for precise control. It mainly consists of a valve body, valve plate, and handle. The materials are usually sturdy and durable thickened materials or stainless steel to ensure good sealing performance. During operation, the handle needs to be rotated to adjust the blade opening to change the air volume. It is widely used in ventilation, smoke extraction, and air conditioning systems to help optimize air circulation. Existing manual air valves require a space of more than 0.5m on one side of the operating mechanism after installation to facilitate personnel control of the valve blade opening. Sometimes, when the manual air valve is installed in a position where the operating space on both sides is relatively small (less than 0.5m), the operator cannot control the opening angle of the valve blades due to the limited operating space. Therefore, a manual air volume regulating valve with an external operating mechanism is proposed. Utility Model Content

[0003] In order to solve the technical problems existing in the prior art, the present invention provides a manual air volume regulating valve with an external operating mechanism.

[0004] To solve the above technical problems, this utility model provides the following technical solution: a manual air volume regulating valve with an external operating mechanism, including an air valve housing, with housing end plates at both ends of the air valve housing, a valve plate connecting shaft inserted inside the housing end plates, a valve plate body installed inside the valve plate connecting shaft, a connecting rod assembly installed outside the valve plate connecting shaft, a transmission assembly connected outside the connecting rod assembly, an operating assembly connected to the top of the transmission assembly, a scale plate installed inside the operating assembly, and a locking assembly installed on the top inside the operating assembly; The two sets of valve plate connecting shafts are symmetrically arranged inside the air valve housing with the valve plate body. The connecting rod assembly connects the two sets of valve plate connecting shafts. The operating component is connected to the connecting rod assembly through the transmission component. The operating component and the scale plate cooperate to form an external operating mechanism for the manual air valve.

[0005] Preferably, the top and bottom of the outer casing end plate are provided with thickened side plates, and the inner side of the connection between the outer casing end plate and the valve plate connecting shaft is provided with reinforcing ribs.

[0006] Preferably, the valve plate connecting shaft is inserted into the outer casing end plate, and the valve plate connecting shaft is located on the inner side of the outer casing end plate and is fixed at the center of the valve plate body.

[0007] Preferably, the linkage assembly includes a pivot connecting arm, a connecting rod is provided on the outside of the pivot connecting arm, one end of the pivot connecting arm is fitted onto the outer end of the valve plate connecting shaft, and both ends of the connecting rod are respectively connected to the ends of two sets of pivot connecting arms via pivots.

[0008] Preferably, the transmission assembly includes a rocker arm, the end of which is connected to a transmission rod. One end of the rocker arm is fixed to the outer end of the valve plate connecting shaft, and the bottom end of the transmission rod is connected to the end of the rocker arm via a rotating shaft.

[0009] Preferably, the operating component includes an operating plate, a connecting shaft at the bottom of the operating plate, a scale indicator rod on the inner side of the operating plate, a limit rod on the bottom side of the scale indicator rod, an operating handle installed on the inner top of the operating plate, the bottom of the operating plate and the top of the transmission rod connected by a rotating shaft, and the connecting shaft passing through the corner at the bottom of the operating plate and connected to the scale plate.

[0010] Preferably, the scale plate includes a plate body, a fixed base is provided at the bottom of the plate body, a scale groove is provided at the top of the plate body, a limit groove is provided in the middle of the plate body, and the plate body is fixed to the top of the outer shell end plate by the fixed base.

[0011] Preferably, the scale groove is an arc-shaped groove, a scale ruler is provided at the top of the scale groove, the scale indicator rod is inserted inside the scale groove, the limiting groove is an arc-shaped groove, and the limiting rod is inserted inside the limiting groove.

[0012] Preferably, the locking assembly includes a locking shaft, a locking pressure plate is mounted on the side of the locking shaft, a rubber pressure block is provided on the bottom side of the locking pressure plate, a locking spring is provided on the inner side of the top of the locking pressure plate, a pull rod is provided on the outer side of the top of the locking pressure plate, the locking shaft is fixed to the side of the operating plate via the shaft, the side of the rubber pressure block abuts against the side of the scale plate, and the two ends of the locking spring abut against the side of the operating plate and the inner side of the locking pressure plate, respectively.

[0013] Preferably, the pull rod is configured as an arc-shaped plate with a concave top, and the pull rod is located on the bottom side of the operating grip.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model includes a damper housing with end plates at both ends. A valve plate connecting shaft is inserted within each end plate, and a valve plate body is installed inside the connecting shaft. A connecting rod assembly is installed outside the connecting shaft, and a transmission assembly is connected to the outside of the connecting rod assembly. An operating component is connected to the top of the transmission assembly, and a scale plate is installed inside the operating component. A locking component is installed on the top of the inner side of the operating component. Two sets of valve plate connecting shafts are symmetrically arranged inside the damper housing with the valve plate body. The connecting rod assembly connects the two sets of valve plate connecting shafts. The operating component is connected to the connecting rod assembly through the transmission assembly. The scale plate, in conjunction with the external operating mechanism of the manual air valve, forms the valve plate body, which is installed inside the air valve housing via the valve plate connecting shaft. In use, the operating component drives the transmission component to rotate, which in turn drives the connecting rod component to rotate, which in turn drives the valve plate connecting shaft to rotate. Rotating the valve plate connecting shaft then drives the valve plate body to rotate, thus opening and closing the valve plate body. During operation, the rotation angle of the operating component is determined by the scale plate to judge the opening angle of the valve plate body. This avoids the inconvenience caused by limited operating space when adjusting the opening of the manual air valve. 2. This utility model also includes a locking assembly, which includes a locking shaft, a locking pressure plate mounted on the side of the locking shaft, a rubber pressure block on the bottom side of the locking pressure plate, a locking spring on the inner top side of the locking pressure plate, and a pull rod on the outer top side of the locking pressure plate. The locking shaft is fixed to the side of the operating plate via the shaft. The side of the rubber pressure block abuts against the side of the scale plate. The two ends of the locking spring abut against the side of the operating plate and the inner side of the locking pressure plate, respectively. The locking pressure plate is connected to the operating plate via the locking shaft. By pushing the top of the locking pressure plate with the locking spring, the bottom end of the locking pressure plate presses the rubber pressure block against the side of the scale plate, thus fixing the angle between the operating plate and the scale plate. The pull rod is a concave arc-shaped plate at the top and is located on the bottom side of the operating handle. When rotating the operating assembly, squeezing the pull rod moves the rubber pressure block away from the side of the scale plate, thereby releasing the fixed state of the operating assembly. This allows for easy fixation of the current angle position during the adjustment of the air valve angle, facilitating timely adjustments. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a side view of the present invention. Figure 3 This is a partial structural diagram of the operating mechanism of this utility model; Figure 4 This is a side view of the operating mechanism of this utility model; Figure 5 This is a partial structural diagram of the locking component of this utility model; Figure 6This is a side view of the locking assembly of this utility model.

[0016] The numbers in the image represent: 1. Air valve housing; 2. Housing end plate; 3. Valve plate connecting shaft; 4. Valve plate body; 5. Linkage assembly; 51. Rotary shaft connecting arm; 52. Connecting rod; 6. Transmission assembly; 61. Rocker arm; 62. Transmission rod; 7. Operating assembly; 71. Operating panel; 72. Connecting shaft; 73. Scale indicator rod; 74. Limiting rod; 75. Operating handle; 8. Scale plate; 81. Plate body; 82. Fixed base; 83. Scale groove; 831. Scale ruler; 84. Limiting groove; 9. Locking assembly; 91. Locking rotating shaft; 92. Locking pressure plate; 93. Rubber pressure block; 94. Locking spring; 95. Pull rod. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, highlighting the above and other technical features and advantages of the present invention. However, the following embodiments are merely preferred embodiments of the present invention and are not exhaustive.

[0018] Example 1: like Figure 1 - Figure 6 As shown, this utility model provides a manual air volume regulating valve with an external operating mechanism, including a valve housing 1, with housing end plates 2 at both ends of the valve housing 1, a valve plate connecting shaft 3 inserted inside the housing end plate 2, a valve plate body 4 installed inside the valve plate connecting shaft 3, a connecting rod assembly 5 installed outside the valve plate connecting shaft 3, a transmission assembly 6 connected outside the connecting rod assembly 5, an operating assembly 7 connected to the top of the transmission assembly 6, a scale plate 8 installed inside the operating assembly 7, and a locking assembly 9 installed on the top inside the operating assembly 7. Two sets of valve plate connecting shafts 3 and valve plate bodies 4 are symmetrically arranged inside the air valve housing 1. The connecting rod assembly 5 connects the two sets of valve plate connecting shafts 3. The operating assembly 7 is connected to the connecting rod assembly 5 through the transmission assembly 6. The operating assembly 7 and the scale plate 8 cooperate to form the external operating mechanism of the manual air valve. The valve plate body 4 is installed inside the air valve housing 1 through the valve plate connecting shafts 3. In use, the operating assembly 7 drives the transmission assembly 6 to rotate, which in turn drives the connecting rod assembly 5 to rotate. The connecting rod assembly 5 further drives the valve plate connecting shafts 3 to rotate, which in turn drives the valve plate body 4 to rotate, thus opening and closing the valve plate body 4. During operation, the rotation angle of the operating assembly 7 is determined by the scale plate 8 to judge the opening angle of the valve plate body 4. This avoids the problem of inconvenient operation caused by limited operating space when adjusting the opening of the manual air valve.

[0019] Thickened side plates are provided at the top and bottom of the outer casing end plate 2, and reinforcing ribs are provided on the inner side of the connection between the outer casing end plate 2 and the valve plate connecting shaft 3. The strength of the outer casing end plate 2 is increased by the side plates and reinforcing ribs to prevent the outer casing end plate 2 from deforming under stress.

[0020] The valve plate connecting shaft 3 is inserted into the outer shell end plate 2. The valve plate connecting shaft 3 is located inside the outer shell end plate 2 and is fixed at the center of the valve plate body 4. The valve plate body 4 is installed inside the outer shell end plate 2 through the valve plate connecting shaft 3.

[0021] The linkage assembly 5 includes a rotating shaft connecting arm 51, and a connecting rod 52 is provided on the outside of the rotating shaft connecting arm 51. One end of the rotating shaft connecting arm 51 is fitted onto the outer end of the valve plate connecting shaft 3. The two ends of the connecting rod 52 are respectively connected to the ends of the two sets of rotating shaft connecting arms 51 through rotating shafts. The two sets of rotating shaft connecting arms 51 are connected through the connecting rod 52, so that the two sets of rotating shaft connecting arms 51 can rotate simultaneously.

[0022] The transmission assembly 6 includes a rocker arm 61, with a transmission rod 62 connected to the end of the rocker arm 61. One end of the rocker arm 61 is fixed to the outer end of the valve plate connecting shaft 3, and the bottom end of the transmission rod 62 is connected to the end of the rocker arm 61 through a rotating shaft. The transmission rod 62 drives the rocker arm 61 to rotate.

[0023] The operating component 7 includes an operating plate 71, a connecting shaft 72 at the bottom of the operating plate 71, a scale indicator rod 73 on the inner side of the operating plate 71, a limit rod 74 on the bottom side of the scale indicator rod 73, an operating handle 75 installed on the inner top of the operating plate 71, the bottom of the operating plate 71 is connected to the top of the transmission rod 62 via a rotating shaft, the connecting shaft 72 passes through the corner of the bottom of the operating plate 71 and is connected to the scale plate 8, and the operating plate 71 can rotate on the side of the scale plate 8 via the connecting shaft 72.

[0024] The scale plate 8 includes a plate body 81, a fixed base 82 at the bottom of the plate body 81, a scale groove 83 at the top of the plate body 81, and a limit groove 84 in the middle of the plate body 81. The plate body 81 is fixed to the top of the outer shell end plate 2 by the fixed base 82.

[0025] The scale groove 83 is set as an arc-shaped groove, and a scale ruler 831 is set at the top of the scale groove 83. The scale indicator rod 73 is inserted inside the scale groove 83. The limit groove 84 is set as an arc, and the limit rod 74 is inserted inside the limit groove 84. When the operating plate 71 is rotated, it drives the scale indicator rod 73 to move in the scale groove 83. By determining the position of the scale indicator rod 73 in the scale groove 83 and the reading of the scale ruler 831 at this time, the opening angle of the valve plate body 4 in the current state can be determined.

[0026] Example 2: like Figure 5 - Figure 6As shown, this utility model provides a manual airflow regulating valve with an external operating mechanism, including a locking assembly 9. The locking assembly 9 includes a locking shaft 91, a locking pressure plate 92 mounted on the side of the locking shaft 91, a rubber pressure block 93 provided on the bottom side of the locking pressure plate 92, a locking spring 94 provided on the inner side of the top of the locking pressure plate 92, and a pull rod 95 provided on the outer side of the top of the locking pressure plate 92. The locking shaft 91 is fixed to the side of the operating plate 71 via the shaft. The side of the rubber pressure block 93 abuts against the side of the scale plate 8. The two ends of the locking spring 94 abut against the side of the operating plate 71 and the inner side of the locking pressure plate 92, respectively. The locking pressure plate 92 is connected to the operating plate 71 via the locking shaft 91. By pushing the top of the locking pressure plate 92 with the locking spring 94, the bottom end of the locking pressure plate 92 presses the rubber pressure block 93 against the side of the scale plate 8, thereby fixing the angle between the operating plate 71 and the scale plate 8.

[0027] The lever 95 is set as an arc-shaped plate with a concave top. The lever 95 is located on the bottom side of the operating handle 75. When rotating the operating component 7, the fixed state of the operating component 7 can be released by squeezing the lever 95 to move the rubber pressure block 93 away from the side of the scale plate 8. This makes it convenient to fix the current angle position at any time during the adjustment of the air valve angle so that it can be adjusted in time.

[0028] The above description is merely a preferred embodiment of the present utility model and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present utility model, all of which will fall within the protection scope of the present utility model.

Claims

1. A manual airflow regulating valve with an external operating mechanism, characterized in that, The device includes a valve housing (1), with end plates (2) at both ends of the valve housing (1), a valve plate connecting shaft (3) inserted inside the end plates (2), a valve plate body (4) installed inside the valve plate connecting shaft (3), a connecting rod assembly (5) installed outside the valve plate connecting shaft (3), a transmission assembly (6) connected outside the connecting rod assembly (5), an operating assembly (7) connected to the top of the transmission assembly (6), a scale plate (8) installed inside the operating assembly (7), and a locking assembly (9) installed on the top inside the operating assembly (7). The two sets of valve plate connecting shafts (3) and valve plate body (4) are symmetrically arranged inside the air valve housing (1). The connecting rod assembly (5) connects the two sets of valve plate connecting shafts (3). The operating assembly (7) is connected to the connecting rod assembly (5) through the transmission assembly (6). The operating assembly (7) and the scale plate (8) cooperate to form an external operating mechanism for the manual air valve.

2. The manual airflow regulating valve with an external operating mechanism as described in claim 1, characterized in that, The top and bottom of the outer shell end plate (2) are provided with thickened side plates, and the inner side of the connection between the outer shell end plate (2) and the valve plate connecting shaft (3) is provided with reinforcing ribs.

3. The manual airflow regulating valve with an external operating mechanism as described in claim 1, characterized in that, The valve plate connecting shaft (3) is inserted into the outer shell end plate (2), and the valve plate connecting shaft (3) is located on the inner side of the outer shell end plate (2) and is fixed at the center of the valve plate body (4).

4. A manual airflow regulating valve with an external operating mechanism as described in claim 1, characterized in that, The connecting rod assembly (5) includes a rotating shaft connecting arm (51), and a connecting rod (52) is provided on the outside of the rotating shaft connecting arm (51). One end of the rotating shaft connecting arm (51) is fitted onto the outer end of the valve plate connecting shaft (3), and the two ends of the connecting rod (52) are respectively connected to the ends of the two sets of rotating shaft connecting arms (51) through rotating shafts.

5. A manual airflow regulating valve with an external operating mechanism as described in claim 1, characterized in that, The transmission assembly (6) includes a rocker arm (61), and a transmission rod (62) is connected to the end of the rocker arm (61). One end of the rocker arm (61) is fixed to the outer end of the valve plate connecting shaft (3), and the bottom end of the transmission rod (62) is connected to the end of the rocker arm (61) through a rotating shaft.

6. A manual airflow regulating valve with an external operating mechanism as described in claim 1, characterized in that, The operating component (7) includes an operating plate (71), a connecting shaft (72) is provided at the bottom of the operating plate (71), a scale indicator rod (73) is provided on the inner side of the operating plate (71), a limit rod (74) is provided on the bottom side of the scale indicator rod (73), an operating handle (75) is installed on the inner side of the top of the operating plate (71), the bottom of the operating plate (71) is connected to the top of the transmission rod (62) through a rotating shaft, and the connecting shaft (72) passes through the corner of the bottom of the operating plate (71) and is connected to the scale plate (8).

7. A manual airflow regulating valve with an external operating mechanism as described in claim 6, characterized in that, The scale plate (8) includes a plate body (81), a fixed base (82) is provided at the bottom of the plate body (81), a scale groove (83) is provided at the top of the plate body (81), a limiting groove (84) is provided in the middle of the plate body (81), and the plate body (81) is fixed to the top of the outer shell end plate (2) by the fixed base (82).

8. A manual airflow regulating valve with an external operating mechanism as described in claim 7, characterized in that, The scale groove (83) is set as an arc-shaped groove, and a scale ruler (831) is set on the top of the scale groove (83). The scale indicator rod (73) is inserted inside the scale groove (83). The limiting groove (84) is set as an arc, and the limiting rod (74) is inserted inside the limiting groove (84).

9. A manual airflow regulating valve with an external operating mechanism as described in claim 1, characterized in that, The locking assembly (9) includes a locking shaft (91), a locking pressure plate (92) is mounted on the side of the locking shaft (91), a rubber pressure block (93) is provided on the bottom side of the locking pressure plate (92), a locking spring (94) is provided on the inner side of the top of the locking pressure plate (92), and a pull rod (95) is provided on the outer side of the top of the locking pressure plate (92). The locking shaft (91) is fixed to the side of the operating plate (71) by the shaft. The side of the rubber pressure block (93) abuts against the side of the scale plate (8). The two ends of the locking spring (94) abut against the side of the operating plate (71) and the inner side of the locking pressure plate (92) respectively.

10. A manual airflow regulating valve with an external operating mechanism as described in claim 9, characterized in that, The pull rod (95) is configured as an arc-shaped plate with a concave top, and the pull rod (95) is located on the bottom side of the operating grip (75).

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