Small torque drive mechanism for adjusting a window

Abstract

The utility model relates to a small torque transmission mechanism adjusting window belongs to textile air conditioning technical field. Including frame, the frame is equipped with multiple vertical even distribution's blade assembly, the both ends of blade assembly are equipped with axle head respectively, axle head one end inserts the blade assembly, axle head other end is respectively worn frame, axle head and frame are connected respectively through bearing assembly, multiple the blade assembly is connected through linkage mechanism between, drives one blade assembly rotation, drives multiple blade assembly linkage through linkage mechanism, makes adjacent blade assembly mutually lap joint and closes, or makes adjacent blade assembly mutually far away and opens, adjusts the clearance between blade assembly, the baffle is respectively covered on axle head, makes the baffle cover set up at the clearance between blade assembly and frame. The application improves the sealing, reduces the clearance between blade shaft both ends and frame, reduces the air leakage, and further reduces the torque force required for the rotation of the regulating blade assembly.

Description

Technical Field

[0001] This utility model relates to a small torque transmission mechanism adjustment window, belonging to the field of textile air conditioning technology. Background Technology

[0002] Textile air conditioning is a device that properly treats the air in a textile workshop and then returns a suitable amount of clean air with appropriate temperature and humidity to the workshop, maintaining the dynamic temperature, humidity, and cleanliness of the workshop. The airflow control window is one of the components of a textile air conditioning system, used to regulate the ratio of reclaimed air to fresh outdoor air and the volume of supplied air.

[0003] Regulating windows are typically installed on the walls of air-conditioned rooms. With the development of air conditioning automatic control technology, manual operation of air conditioners is gradually being replaced by computer control. This places increasingly higher demands on air conditioning components. For regulating windows, easy and flexible opening and closing, stable torque, consistent movement of all blades, and minimal or no air leakage when closed are basic requirements under automatic control.

[0004] Existing adjustable windows generally suffer from inconsistent opening and closing force, high torque, poor consistency in the movement of each blade, and uneven gaps between blades when closed, resulting in significant air leakage. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a small torque transmission mechanism adjustment window that addresses the above-mentioned prior art. The straight edge of the blade is replaced with a bent surface structure, and the blades are overlapped by overlapping inclined surfaces to form an air seal structure, which improves the sealing performance and reduces gaps when closed; it also reduces the torque force required for the adjustment blade assembly to rotate and improves the service life of the actuator.

[0006] The technical solution adopted by this utility model to solve the above problems is as follows: a small torque transmission mechanism adjustment window, including a frame, in which multiple vertically evenly distributed blade assemblies are provided. Each blade assembly has a shaft head at both ends. One end of the shaft head is inserted into the blade assembly to form a whole, and the other end of the shaft head passes through the frame. The shaft head and the frame are connected by bearing assemblies. The multiple blade assemblies are connected by a linkage mechanism, which drives one blade assembly to rotate and drives multiple blade assemblies to move together, so that adjacent blade assemblies overlap each other to close; or adjacent blade assemblies move away from each other to open, adjusting the gap between the blade assemblies. Each shaft head is fitted with a baffle, so that the baffle covers the gap between the blade assembly and the frame.

[0007] Each of the blade assemblies includes a square blade shaft with a square hole at its center, and the shaft head is inserted into the square hole. Blades are symmetrically arranged on the blade shaft. One blade has a first bending surface at its edge, and the other blade has a second bending surface at its edge. The bending direction of the first bending surface is opposite to that of the second bending surface, forming an overlapping inclined surface. The first bending surface of one blade assembly overlaps with the second bending surface of the adjacent blade assembly.

[0008] Each of the bearing assemblies includes a bearing housing, which is horizontally inserted through and fixed to the frame; a bushing is provided inside the bearing housing, and a bearing is provided between the bearing housing and the bushing; the bushing passes through the shaft head, and the bushing can rotate within the bearing housing, thereby driving the shaft head and the blade assembly to rotate synchronously.

[0009] A rocker arm is provided at the end of one shaft head of any of the blade assemblies to form a rocker arm shaft head.

[0010] The linkage mechanism is a sequential opening linkage mechanism, which includes a sequential opening connecting rod, and all the rocker arms are arranged in parallel in the same direction; the rocker arms are connected to each other through the sequential opening connecting rod.

[0011] The linkage mechanism is a split linkage mechanism, which includes a first split connecting rod and a second split connecting rod arranged in parallel. The first split connecting rod and the second split connecting rod are connected by a connecting rod. One rocker arm is connected to the first split connecting rod, and an adjacent rocker arm is connected to the second split connecting rod. Multiple rocker arms are alternately connected to the first split connecting rod and the second split connecting rod, so that the rocker arms arranged at intervals are arranged in parallel in the same direction.

[0012] The frame includes two symmetrically arranged side frames, and the top and bottom ends of the two side frames are fixedly connected by cover plates.

[0013] Limiting angle plates are respectively provided on the inner side of the cover plate. One side of the limiting angle plate is fixed to the cover plate by a pin, and a sealing strip is provided on the other side of the limiting angle plate. When the blade assembly is closed, the edge of the blade abuts against the sealing strip.

[0014] Compared with the prior art, the advantages of this utility model are as follows: A small torque transmission mechanism adjustment window has blades with straight edges replaced by a bent surface structure. The blades are joined together by overlapping inclined surfaces to form an airtight structure, improving sealing performance and reducing gaps when closed. A baffle is placed at the gap between the shaft head and the bushing, reducing the gap between the blade shaft ends and the frame, reducing air leakage, and thus reducing the torque required to rotate the adjusting blade assembly, thereby improving the service life of the actuator. Attached Figure Description

[0015] Figure 1This is a front view of an adjustment window for a small torque transmission mechanism according to an embodiment of the present invention; Figure 2 for Figure 1 Top view; Figure 3 for Figure 1 Side view; Figure 4 for Figure 3 Enlarged view of A in the middle; Figure 5 This is a schematic diagram of the shaft head; Figure 6 This is a schematic diagram of the swing arm shaft head; Figure 7 This is a schematic diagram of the blades opening sequentially. Figure 8 This is a schematic diagram of the blades being connected in pairs. Figure 9 This is a schematic diagram of the blade; Figure 10 This is a schematic diagram of adjacent blades closing. In the figure, 1 is the cover plate, 2 is the frame, 3 is the blade assembly, 3.1 is the square hole, 3.2 is the first bending surface, 3.3 is the second bending surface, 3.4 is the blade, 4 is the shaft head, 5 is the bearing seat, 6 is the rolling bearing, 7 is the bushing, 8 is the swing arm shaft, 9 is the actuator, 10 is the baffle, 11 is the sealing strip, 12 is the pin, 13 is the limiting angle plate, 14 is the forward opening connecting rod, 15 is the rocker arm, 16 is the first split connecting rod, 17 is the second split connecting rod, and 18 is the connecting rod. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0017] like Figure 1 , 2 As shown in Figure 3, the small torque transmission mechanism adjustment window in this embodiment includes a frame. Multiple vertically evenly spaced blade assemblies 3 are arranged within the frame. Each blade assembly 3 has a shaft head 4 at both ends. One end of the shaft head 4 is inserted into the blade assembly 3, and the other end passes through the frame. The shaft head and the frame are connected by bearing assemblies, allowing the shaft head to rotate within the frame and drive the blade assembly to rotate. Multiple blade assemblies are connected by a linkage mechanism. An actuator controls the rotation of one blade assembly, and the linkage mechanism drives multiple blade assemblies to move in tandem. This causes adjacent blade assemblies to overlap and close the inner cavity of the frame, placing them in a closed state; or it causes adjacent blade assemblies to move away from each other, adjusting the gap between them. This ensures the consistency of the blade assemblies and also regulates the return air volume.

[0018] The frame includes two symmetrically arranged side frames 2, and the top and bottom of the two side frames 2 are fixedly connected by cover plates 1.

[0019] like Figure 9 , 10 As shown, each blade assembly includes a square blade shaft with a square hole 3.1 at its center. Two shaft ends 4 are inserted into the square hole, causing them to expand and tighten within the square hole 3.1, making the blade shaft and the two shaft ends a single unit. Blades 3.4 are symmetrically arranged on the blade shaft. One blade has a first bending surface 3.2 at its edge, and the other blade has a second bending surface 3.3 at its edge. The bending direction of the first bending surface is opposite to that of the second bending surface, forming an overlapping inclined surface. When the blade assemblies are closed in conjunction, the first bending surface of one blade assembly overlaps with the second bending surface of the adjacent blade assembly, forming an airtight seal. When closed, the blades fit more tightly, resulting in smaller gaps, less air leakage, and improved sealing.

[0020] like Figure 5 , 6 As shown, a rocker arm 15 is provided at the end of one shaft head in any blade assembly to form a rocker arm shaft head 8.

[0021] Each bearing assembly includes a bearing housing 5, which is horizontally inserted through a frame 2 and fixed to the frame 2 by bolts. A bushing 7 is provided inside the bearing housing 5, and a rolling bearing 6 is provided between the bearing housing 5 and the bushing 7, so that the bushing can rotate within the bearing housing.

[0022] Each shaft head is fitted with a baffle 10, which covers the gap between the blade assembly 3 and the frame 2. The baffle is made of ABS material and has an arc-shaped cross-section. The baffle has a large elastic deformation in terms of arc height and arc length, which reduces the gap between the two ends of the blade shaft and the frame, reduces air leakage, and thus reduces the torque required to adjust the rotation of the blade assembly, thereby improving the service life of the actuator.

[0023] like Figure 7 As shown, when the linkage mechanism is a forward-opening linkage mechanism, it includes a forward-opening link 14, and all rocker arms are arranged in parallel in the same direction. The rocker arms are connected to each other through the forward-opening link 14. When the actuator drives a blade shaft to rotate, the corresponding rocker arm rotates, pushing the forward-opening link 14 to move, which in turn drives the other rocker arms to move in tandem, so that multiple blade assemblies swing synchronously in the same direction, improving the consistency of the blade assembly's movements.

[0024] like Figure 8As shown, when the linkage mechanism is a split linkage mechanism, it includes a first split connecting rod 16 and a second split connecting rod 17 arranged in parallel. The first split connecting rod 16 and the second split connecting rod 17 are connected by a connecting rod 18, forming a Z-shape between them. One rocker arm is connected to the first split connecting rod, and an adjacent rocker arm is connected to the second split connecting rod. Multiple rocker arms are alternately connected to the first split connecting rod and the second split connecting rod, so that the spaced rocker arms are arranged in parallel in the same direction. When the actuator drives a blade shaft to rotate, the corresponding rocker arm pushes the first split connecting rod and the connecting rod to move, causing the second split connecting rod to move in the opposite direction. This causes the first split connecting rod and the second split connecting rod to move in the opposite direction, driving the adjacent blade shafts to swing synchronously in the opposite direction.

[0025] like Figure 4 As shown, limiting angle plates 13 are respectively provided on the inner side of the cover plate 1. One side of the limiting angle plate 13 is fixed to the cover plate 1 by a pin 12, and a sealing strip 11 is provided on the other side of the limiting angle plate. When the blade assembly is closed, the bent surface of the blade abuts against the sealing strip, thereby limiting the blade.

[0026] This application modifies the straight edges of the blades to have a bent surface structure. The blades are joined together by overlapping bevels to form an air-sealed structure, improving sealing performance and reducing gaps when closed. A baffle is installed at the gap between the shaft head and the bushing, reducing the gap between the two ends of the blade shaft and the frame, reducing air leakage, and thus reducing the torque required to adjust the rotation of the blade assembly, thereby improving the service life of the actuator.

[0027] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A small torque transmission mechanism adjustment window, characterized in that: The device includes a frame containing multiple vertically distributed blade assemblies. Each blade assembly has a shaft end at both ends, with one end of the shaft end inserted into the blade assembly to form a whole, and the other end of the shaft end passing through the frame. The shaft ends and the frame are connected by bearing assemblies. The multiple blade assemblies are connected by a linkage mechanism, which drives one blade assembly to rotate and drives multiple blade assemblies to move together, causing adjacent blade assemblies to overlap and close, or causing adjacent blade assemblies to move away from each other and open, thus adjusting the gap between the blade assemblies. Each shaft end is fitted with a baffle, which covers the gap between the blade assembly and the frame.

2. The adjusting window of the small torque transmission mechanism according to claim 1, characterized in that: Each of the blade assemblies includes a square blade shaft with a square hole at its center, and the shaft head is inserted into the square hole. Blades are symmetrically arranged on the blade shaft. One blade has a first bending surface at its edge, and the other blade has a second bending surface at its edge. The bending direction of the first bending surface is opposite to that of the second bending surface, forming an overlapping inclined surface. The first bending surface of one blade assembly overlaps with the second bending surface of the adjacent blade assembly.

3. The adjusting window of the small torque transmission mechanism according to claim 1, characterized in that: Each of the bearing assemblies includes a bearing housing, which is horizontally inserted through and fixed to the frame; a bushing is provided inside the bearing housing, and a bearing is provided between the bearing housing and the bushing; the bushing passes through the shaft head, and the bushing can rotate within the bearing housing, thereby driving the shaft head and the blade assembly to rotate synchronously.

4. The adjusting window of a small torque transmission mechanism according to claim 1, characterized in that: A rocker arm is provided at the end of one shaft head of any of the blade assemblies to form a rocker arm shaft head.

5. The adjusting window of a small torque transmission mechanism according to claim 4, characterized in that: The linkage mechanism is a sequential opening linkage mechanism, which includes a sequential opening connecting rod, and all the rocker arms are arranged in parallel in the same direction; the rocker arms are connected to each other through the sequential opening connecting rod.

6. The adjusting window of a small torque transmission mechanism according to claim 4, characterized in that: The linkage mechanism is a split linkage mechanism, which includes a first split connecting rod and a second split connecting rod arranged in parallel. The first split connecting rod and the second split connecting rod are connected by a connecting rod. One rocker arm is connected to the first split connecting rod, and an adjacent rocker arm is connected to the second split connecting rod. Multiple rocker arms are alternately connected to the first split connecting rod and the second split connecting rod, so that the rocker arms arranged at intervals are arranged in parallel in the same direction.

7. The adjusting window of a small torque transmission mechanism according to claim 2, characterized in that: The frame includes two symmetrically arranged side frames, and the top and bottom ends of the two side frames are fixedly connected by cover plates.

8. The adjusting window of a small torque transmission mechanism according to claim 7, characterized in that: Limiting angle plates are respectively provided on the inner side of the cover plate. One side of the limiting angle plate is fixed to the cover plate by a pin, and a sealing strip is provided on the other side of the limiting angle plate. When the blade assembly is closed, the edge of the blade abuts against the sealing strip.

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