High-precision control mechanism for curtain drawing stroke

Abstract

The invention belongs to the technical field of greenhouses, and particularly relates to a curtain drawing stroke high-precision control mechanism which comprises a fixing support, a main driving gear is installed on the top of the fixing support, a small-draft gear set is installed on the top of the fixing support, the main driving gear is meshed with the small-draft gear set, and an adjusting drive plate is installed in the middle of the small-draft gear set. A locking bolt is installed in the middle of the adjusting drive plate, a wiring terminal is installed on the top of the fixing support, and a mistake-proof contact piece is installed on the top of the fixing support. When a preset stop position of the motor is reached, the grooves of the three driving plates are adjusted to the positions where the roller contacts can be exactly clamped into the driving plate grooves, and then the locking screws on the driving plates are tightened, so that setting is completed; if the wiring sequence is wrong, the set motor is started to drive the stroke to rotate reversely and trigger the mistake-proof contact piece to trigger the microswitch to stop equipment, so that the motor is prevented from damaging external facilities of a user, and reverse debugging is similar.

Description

Technical Field

[0001] This invention belongs to the field of greenhouse technology, specifically a high-precision control mechanism for curtain pulling stroke. Background Technology

[0002] The high-precision control mechanism for the curtain-pulling process is one of the landmark pieces of equipment in modern intelligent greenhouses, marking the transition from "extensive management" to "precision agriculture." Its core advantages lie in precise heat preservation, significantly reducing winter heating costs, creating the most suitable and stable light and temperature environment, reducing crop stress, fully automated operation, reducing the uncertainty and labor intensity of manual operation, and rapid automatic response based on weather warnings. In case of hail or strong winds, it can automatically close the curtain for protection. As facility agriculture develops towards intelligence and efficiency, this high-precision control system has become a standard configuration for large-scale modern greenhouses, plant factories, and research greenhouses.

[0003] A greenhouse, as disclosed in Chinese Patent No. CN109819824B, includes a greenhouse body with a greenhouse cavity inside. It also includes a shading mechanism installed within the greenhouse cavity. The shading mechanism is powered by a shading motor, which drives a main sliding rod above it to move left and right via a transmission. This invention has a simple structure and is easy to operate. The shading mechanism controls the opening and closing of the shading cloth via the shading motor to perform shading and temperature control. When it rains, a fertilizer mechanism collects rainwater. A sensor detects the carbon dioxide concentration inside the greenhouse, and ventilation is achieved through the cooperation of a blower mechanism and a window opening mechanism to stabilize the carbon dioxide concentration. A spraying mechanism and a fertilizer mechanism work together to spray fertilizer onto the plants inside the greenhouse. The entire device can automatically complete the shading work while controlling the temperature and carbon dioxide concentration.

[0004] In existing greenhouse applications, the high-precision control mechanism for curtain pulling stroke is extremely inconvenient to disassemble and assemble, making it unsuitable for various installation environments. Therefore, a new high-precision control mechanism for curtain pulling stroke is proposed to address these issues. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a high-precision control mechanism for the curtain pulling stroke.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a high-precision control mechanism for curtain pulling stroke, including a fixed bracket, a main drive gear mounted on the top of the fixed bracket, a small-diameter gear set mounted on the top of the fixed bracket, the main drive gear meshing with the small-diameter gear set, an adjusting dial mounted in the middle of the small-diameter gear set, a locking bolt mounted in the middle of the adjusting dial, a wiring terminal mounted on the top of the fixed bracket, and an anti-mistake contact plate mounted on the top of the fixed bracket, with a roller contact fixedly connected to one side of the anti-mistake contact plate.

[0007] Preferably, the terminal block has six sets of wiring holes on its side wall, the wiring holes are symmetrically arranged, and the top of the terminal block has a wire sequence number.

[0008] Preferably, the inner surface of the adjusting dial is threaded with a gear set bolt, and the gear set bolt abuts against the outer surface of the differential gear set.

[0009] Preferably, the roller contact is disposed on one side of the adjustment dial, and the roller contact abuts against the adjustment dial.

[0010] The beneficial effects of this invention are:

[0011] This invention provides a high-precision control mechanism for curtain pulling stroke. By setting up a conveniently installed fixed bracket and mounting plate body, the installation and disassembly of the high-precision control mechanism for curtain pulling stroke are made more convenient. The high-precision control mechanism for curtain pulling stroke can be assembled and fixed at the required position using bolts, making the adjustment of the high-precision control mechanism for curtain pulling stroke convenient. In the usage scenario, the user can control the device to any position required and tighten the screws.

[0012] This invention provides a high-precision control mechanism for the curtain pulling stroke. By employing an adjustment dial and a low-adjustment gear set, which in turn cooperates with transmission gears and motor transmission, and with the gears meshing with each other, the high-precision control mechanism for the curtain pulling stroke has a compact structure and high transmission efficiency due to the low-adjustment gear combination.

[0013] This invention provides a high-precision control mechanism for curtain pulling stroke. By setting multiple sets of gears with small travel distances and fixing them with gear fixing holes and gear bolts on the adjusting dial, the gears with small travel distances mesh with the main drive gear. In this way, the multiple gears work together to offset transmission errors, thereby improving repeatability and positioning accuracy. Furthermore, the stroke distance completely eliminates the limitations in use and fully covers greenhouse application scenarios. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0015] Figure 1 This is a perspective view of the entire invention;

[0016] Figure 2 This is the rear view in this invention;

[0017] Figure 3 This is the bottom view in this invention;

[0018] Figure 4 This is an exploded view of the present invention;

[0019] Figure 5 This is an exploded view of the mounting plate body in this invention;

[0020] Figure 6 This is a top view of the gear set with less feed rate in this invention;

[0021] Figure 7 This is an exploded view of the less-eaten and less-adjustable gear set in this invention;

[0022] Figure 8 This is a top view of the present invention;

[0023] Figure 9 This is an exploded view of the wiring terminals in this invention.

[0024] Legend:

[0025] 1. Fixed bracket; 2. Main drive gear; 3. Wiring terminal; 4. Adjustment dial; 5. Smaller feed gear set; 6. Locking bolt; 7. Anti-misoperation contact plate; 8. Roller contact. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Specific implementation examples are given below.

[0028] Please see Figures 1-9This invention discloses a high-precision control mechanism for curtain travel, comprising a fixed bracket 1, a main drive gear 2 mounted on the top of the fixed bracket 1, a set of gears with different contact points 5 mounted on the top of the fixed bracket 1, the main drive gear 2 meshing with the set of gears with different contact points 5, an adjusting dial 4 mounted in the middle of the set of gears with different contact points 5, a locking bolt 6 mounted in the middle of the adjusting dial 4, a terminal block 3 mounted on the top of the fixed bracket 1, and a mis-contact breaker 7 mounted on the top of the fixed bracket 1. A roller contact 8 is fixedly connected to one side of the mis-contact breaker 7. Travel control principle: When the main drive gear 2 rotates forward, it drives the three sets of gears with different contact points 5 to rotate. When the desired stop position of the motor is reached, the slots of the three dials are adjusted so that the roller contact 8 can just fit into the dial slot. Then the locking screw on the dial is tightened to complete the setting. If the wiring sequence is incorrect, the motor start will drive the travel in reverse and trigger the mis-contact breaker 7 to trigger the micro switch to stop the equipment, preventing the motor from damaging the user's external facilities. The reverse debugging is the same.

[0029] See Figures 1-9 The terminal block 3 has six sets of wiring holes on its side wall, which are symmetrically arranged. The terminal block 3 has a wire sequence number on its top.

[0030] See Figures 1-9 The inner surface of the adjusting dial 4 is threaded with a locking bolt 6, which abuts against the outer surface of the differential gear set 5. The differential gear set 5 is configured to mount the adjusting dial 4 on the outer surface of the center rod. The differential gear set 5 can be inserted into the groove of the adjusting dial 4, and the locking bolt 6 passes through the gear set fixing hole and is fixed to the differential gear set 5, facilitating its installation. The differential gear set 5 meshes with the main drive gear 2, and the transmission gear is fixed to one side of the differential gear set 5.

[0031] See Figures 1-9 The roller contact 8 is located on one side of the adjustment dial 4, and the roller contact 8 abuts against the adjustment dial 4. By setting the adjustment dial 4, the roller contact 8 is always in contact with the adjustment dial 4.

[0032] Working principle: When the main drive gear 2 rotates forward, it drives the three differential gear sets 5 to rotate. When the motor reaches the desired stop position, adjust the slots of the three dials so that the roller contact 8 can just fit into the dial slot. Then tighten the locking screw on the dial to complete the setting. If the wiring sequence is incorrect, the motor will reverse the stroke and trigger the anti-misoperation contact 7 to trigger the micro switch to stop the equipment, preventing the motor from damaging the user's external facilities. The reverse debugging is the same.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A high-precision control mechanism for curtain pulling stroke, comprising a fixed bracket (1), characterized in that: The top of the fixed bracket (1) is equipped with a main drive gear (2), and the top of the fixed bracket (1) is equipped with a small-diameter gear set (5). The main drive gear (2) meshes with the small-diameter gear set (5). The middle of the small-diameter gear set (5) is equipped with an adjustment dial (4). The middle of the adjustment dial (4) is equipped with a locking bolt (6). The top of the fixed bracket (1) is equipped with a terminal block (3). The top of the fixed bracket (1) is equipped with an anti-mistake contact plate (7). One side of the anti-mistake contact plate (7) is fixedly connected to a roller contact (8).

2. The high-precision control mechanism for curtain pulling stroke according to claim 1, characterized in that: The terminal block (3) has six sets of wiring holes on its side wall. The wiring holes are symmetrically arranged. The terminal block (3) has a wire number on its top.

3. The high-precision control mechanism for curtain pulling stroke according to claim 1, characterized in that: The inner surface of the adjusting dial (4) is threaded with a locking bolt (6), which abuts against the outer surface of the differential gear set (5).

4. The high-precision control mechanism for curtain pulling stroke according to claim 1, characterized in that: The roller contact (8) is located on one side of the adjustment dial (4), and the roller contact (8) abuts against the adjustment dial (4).

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