Grain gate opening and closing device
By designing a plate mechanism and an actuator on the grain silo gate, and using an electric cylinder to remotely control the opening and closing of the plate, the safety hazards and structural strength issues during the grain discharge process of the grain silo gate are solved, achieving convenient grain discharge operation and safety assurance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINOGRAIN CHENGDU STORAGE RESEARCH INSTITUTE CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-06-02
AI Technical Summary
The existing grain silo gates pose safety hazards during grain discharge, and the electric push rod solution requires drilling or welding, which affects structural strength and is inconvenient to maintain.
A plate-insertion mechanism and actuator were designed that do not require modification of the grain-blocking gate structure. The opening and closing of the plate-insertion mechanism are remotely controlled by an electric cylinder, and safety is ensured by combining a human body sensing module.
It enables remote control of the grain outlet opening and closing, improves the structural strength and installation convenience of the grain gate, reduces maintenance difficulty, and ensures operational safety.
Smart Images
Figure CN224314805U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grain storage equipment, and in particular to a grain gate opening and closing device. Background Technology
[0002] Currently, when grain is initially discharged from a grain silo, a person typically approaches the silo gate and manually opens the outlet flap, allowing the grain to flow out by gravity. When the discharge flow needs adjustment, the opening size of the outlet flap also needs to be manually adjusted. After the gravity discharge is complete, the outlet flap must be manually closed. This method requires personnel to remain near the silo gate for extended periods to manually control the outlet flap. However, during gravity discharge, the inner side of the silo gate experiences significant pressure from the grain, posing a risk of the gate bursting open and creating a serious safety hazard.
[0003] To improve safety, some solutions currently exist that use electric push rods to control the opening and closing of the gate, such as patent document CN210685692U, which discloses a safety warning gate that uses an electric push rod to control the opening and closing of the gate. The problem with this solution is that, because grain gates are typically constructed with a steel frame, embedded insulation material, and sheet metal on both sides, their structural strength is not high. Therefore, many warehouses require that drilling or surface welding not be performed on the grain gate to ensure safety. This limits the applicability of the welding fixing method used for the electric push rod in this solution, and also makes disassembly and maintenance more difficult. Utility Model Content
[0004] To overcome the aforementioned shortcomings of existing grain gate opening and closing methods, the technical problem to be solved by this utility model is to provide a grain gate outlet opening and closing device that can be remotely controlled without modifying the original structure of the grain gate.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] The grain gate outlet opening and closing device includes an insert plate mechanism and an actuator. The insert plate mechanism includes a support frame. The back of the support frame is provided with guide strips that can slide and engage with the sliding grooves on both sides of the grain gate outlet. The sides of the support frame are provided with locking members that can abut the guide strips against the side walls of the sliding grooves. The front of the support frame is provided with an insert plate that can close the cavity in the middle of the support frame and slide in the vertical direction. The insert plate is provided with a connecting part. The actuator includes an electric cylinder located at the top of the support frame. The electric cylinder can be remotely controlled to extend and retract in the vertical direction. The extension and retraction end of the electric cylinder is connected to the connecting part on the insert plate.
[0007] Furthermore, the insert plate mechanism also includes a pressing crossbeam, which is fastened to the bottom of the support frame by pressing bolts, and the pressing strip on the inner side of the pressing crossbeam abuts against the lower side of the limiting strip below the grain outlet, and the lower end of the guide strip abuts against the upper side of the limiting strip.
[0008] Furthermore, the bottom of the support frame is provided with at least one clamping bolt and at least two guide rods along its length, which are alternately and evenly spaced. The clamping crossbeam is provided with a plurality of guide holes for the clamping bolt and guide rods to pass through. After the clamping bolt passes through the guide hole, it is connected to the first wing nut.
[0009] Furthermore, a guide groove is provided on each of the left and right sides of the front of the support frame, and the two sides of the insert plate are slidably disposed in the guide groove.
[0010] Furthermore, the locking element is a knurled hand screw that passes through both sides of the support frame and is threaded to it, and the tail of the knurled hand screw can abut against the outer wall of the slide groove.
[0011] Furthermore, the actuator also includes a mounting frame, which includes a base plate, a connecting plate bent at the lower end of the base plate, and a support column fixed in the middle of the base plate and connected at the lower end to the connecting plate. The mounting frame is mounted on the top of the support frame via the connecting plate, and the electric cylinder is mounted on the support column.
[0012] Furthermore, at least two mounting bolts are evenly spaced along the length of the top of the support frame, and multiple through holes are correspondingly provided on the connecting plate for the mounting bolts to pass through. After passing through the through holes, the mounting bolts are connected to the second wing nut.
[0013] Furthermore, the base plate is equipped with multiple magnets around its perimeter, and when the mounting frame is installed on the support frame, the magnets are attracted to the grain gate.
[0014] Furthermore, the connecting part on the insert plate includes two ear plates and a detachable pin that passes between the two ear plates. The telescopic end of the electric cylinder is provided with a connector that can extend into the space between the two ear plates, and the connector is provided with a connecting hole for the pin to pass through.
[0015] Furthermore, the mounting frame is also equipped with a human body sensing module electrically connected to the electric cylinder. The human body sensing module is configured to activate an alarm and control the electric cylinder to move the insert plate downwards and close the grain outlet when it senses that a person is within one meter of the grain gate.
[0016] The beneficial effects of this utility model are: the entire device is fixed in the groove of the grain outlet of the grain gate by the guide strip on the insert plate mechanism, and the actuator is fixed on the insert plate mechanism. It does not modify or damage the original structure of the grain gate, which can ensure the structural strength and stability of the grain gate, while improving the convenience of equipment installation and facilitating later inspection and maintenance. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a structural schematic diagram of the grain-blocking gate of this utility model;
[0019] Figure 3 This is a structural schematic diagram of the back of the insert plate mechanism of this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the actuator of this utility model.
[0021] The diagram is labeled as follows: 1-Insertion plate mechanism, 2-Actuator, 3-Grain gate, 4-Human body sensing module, 11-Support frame, 12-Locking component, 13-Insertion plate, 14-Connecting part, 15-Pressure beam, 16-First wing nut, 17-Second wing nut, 21-Mounting frame, 22-Electric cylinder, 23-Magnet, 24-Connector, 31-Grain outlet, 32-Slide chute, 33-Limiting strip, 111-Guide strip, 112-Pressure bolt, 113-Guide rod, 114-Guide groove, 115-Mounting bolt, 141-Ear plate, 142-Pin, 151-Pressure strip, 152-Guide hole, 211-Base plate, 212-Connecting plate, 213-Support column, 214-Through hole, 241-Connecting hole. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings.
[0023] It should be noted that if this utility model contains directional indicators such as up, down, left, right, front, and back, these are used to describe the relative positional relationships between components and are not specific references to the absolute positions of related components or the positional relationships between components. They are only used to explain the relative positional relationships and movement of components in a specific posture. If the specific posture changes, the directional indicator will also change accordingly. If this utility model contains terms related to quantity, such as "many," "multiple," or "several," these specifically refer to two or more.
[0024] like Figure 1-3As shown, the present invention provides a grain gate outlet opening and closing device, including an insert plate mechanism 1 and an actuator 2. The insert plate mechanism 1 includes a support frame 11. The back of the support frame 11 is provided with a guide strip 111 that can slide and cooperate with the sliding grooves 32 on both sides of the grain gate outlet 31. The two sides of the support frame 11 are provided with locking members 12 that can make the guide strip 111 abut against the side wall of the sliding groove 32. The front of the support frame 11 is provided with an insert plate 13 that can close the cavity in the middle of the support frame 11 and can slide in the vertical direction. The insert plate 13 is provided with a connecting part 14. The actuator 2 includes an electric cylinder 22 provided on the top of the support frame 11. The electric cylinder 22 can be remotely controlled to extend and retract in the vertical direction. The extension end of the electric cylinder 22 is connected to the connecting part 14 on the insert plate 13. The support frame 11 and the guide strip 111 on the back should ensure that when the guide strip 111 is located within the chute 32, the back of the support frame 11 is in close contact with the surface of the grain gate 3. If necessary, a rubber pad can be placed on the back of the support frame 11. In addition, the central cavity of the support frame 11 needs to completely surround the grain outlet 31, and the grain outlet 31 is closed by the insert plate 13 at the front of the support frame 11. The locking member 12 can be a cam locking mechanism or a bolt locking mechanism. This utility model preferably uses a knurled hand screw. The knurled hand screw passes through both sides of the support frame 11 and is threaded to them. By turning the knurled hand screw by hand, its tail abuts against the outer wall of the chute 32, thereby achieving tight fixing between the guide strip 111 and the side wall of the chute 32.
[0025] The usage process of this utility model is as follows: Before loading grain into the grain silo, the original insert plate blocking the grain outlet 31 on the grain gate 3 is removed from the slide groove 32. Then, the guide strip 111 of the support frame 11 is slid into the slide groove 32. Afterward, the locking member 12 is used to tighten and fix the guide strip 111 and the slide groove 32, thereby fixing the insert plate mechanism 1 and the actuator 2 and ensuring that the insert plate 13 is in the closed state. Grain loading can then be carried out. When grain needs to be discharged, the electric cylinder 22 is connected to the power supply, and the electric cylinder 22 is remotely controlled by the remote control to retract, driving the insert plate 13 to move upward and opening the grain outlet 31 to realize the grain discharge operation. This utility model is fixed in the slide groove 32 of the grain outlet 31 of the grain gate 3 by a plug-in method. The installation process does not modify or damage the original structure of the grain gate 3, which can ensure the structural strength and stability of the grain gate 3.
[0026] To further improve the installation stability of the insert mechanism 1, such as Figure 1 , Figure 3As shown, the insert plate mechanism 1 also includes a pressing crossbeam 15. The pressing crossbeam 15 is fastened to the bottom of the support frame 11 by pressing bolts 112, and the pressing strip 151 on the inner side of the pressing crossbeam 15 abuts against the lower side of the limiting strip 33 below the grain outlet 31, and the lower end of the guide strip 111 abuts against the upper side of the limiting strip 33. The limiting strip 33 is the original structure of the grain gate 3, used for the vertical limitation of the original insert plate. The installation process of the clamping beam 15 is as follows: when the guide strip 111 of the support frame 11 slides into the slide groove 32, ensure that the lower end of the guide strip 111 contacts the limiting strip 33. Then, install the clamping beam 15 at the bottom of the support frame 11. Utilize the tensioning action of the clamping bolt 112 and the support frame 11 to make the clamping strip 151 and the guide strip 111 form a bidirectional clamping action on the limiting strip 33. Finally, the locking member 12 is used to tighten and fix the guide strip 111 and the slide groove 32.
[0027] like Figure 3 As shown, to ensure that the clamping beam 15 can uniformly tighten the limiting strip 33, at least one clamping bolt 112 and at least two guide rods 113 can be provided along the length of the bottom of the support frame 11. These are alternately and evenly spaced, for example, one clamping bolt 112 in the middle and one guide rod 113 on each side, or two clamping bolts 112 inserted between three guide rods 113. The clamping beam 15 has multiple guide holes 152 for the clamping bolts 112 and guide rods 113 to pass through. The clamping bolt 112 passes through the guide hole 152 and connects to the first wing nut 16. The guide rod 113 and the guide hole 152 are in a sliding fit, guiding the movement of the clamping beam 15. The clamping bolt 112 only needs to pass through the guide hole 152. The clamping beam 15 and the support frame 11 can be easily tightened by manually rotating the first wing nut 16.
[0028] For the sliding connection between the insert plate 13 and the support frame 11, the same scheme as the insert plate of the original grain outlet 31 can be adopted, such as... Figure 1 , Figure 3 As shown, a guide groove 114 is provided on the left and right sides in front of the support frame 11, and the two sides of the insert plate 13 are slidably disposed in the guide groove 114.
[0029] Preferred, such as Figure 4As shown, the actuator 2 also includes a mounting frame 21, which includes a base plate 211, a connecting plate 212 bent at the lower end of the base plate 211, and a support column 213 fixed in the middle of the base plate 211 and connected at the lower end to the connecting plate 212. The mounting frame 21 is mounted on the top of the support frame 11 via the connecting plate 212, and the electric cylinder 22 is mounted on the support column 213. The connecting plate 212 can be bent at 90° for easy vertical fixing to the top of the support frame 11. The support column 213 may include two columns, mainly used to improve the structural strength of the mounting frame 21 so that it can support the electric cylinder 22 without deformation. The insertion plate mechanism 1 and the actuator 2 are set in a detachable combination. During grain storage, the insertion plate mechanism 1 is only installed on the grain gate 3, and the actuator 2 is installed when opening the silo to release grain, realizing remote control of the opening and closing of the insertion plate 13. One actuator 2 can be used in multiple grain silos, while avoiding equipment failure caused by the actuator 2 being exposed to the outside for a long time.
[0030] The specific connection method between the mounting frame 21 and the support frame 11 is as follows: at least two mounting bolts 115 are evenly spaced along the length of the top of the support frame 11; the connecting plate 212 is provided with multiple through holes 214 for the mounting bolts 115 to pass through; the mounting bolts 115 are connected to the second wing nut 17 after passing through the through holes 214. Using a wing nut for connection also improves the convenience of equipment installation.
[0031] To prevent the mounting frame 21 from shaking during operation, a further solution is to provide multiple magnets 23 around the base plate 211. When the mounting frame 21 is installed on the support frame 11, the magnets 23 are attracted to the grain gate 3, thereby playing an auxiliary connection role between the base plate 211 and the grain gate 3, ensuring the stability of the electric cylinder 22 during operation.
[0032] Regarding the connection method between the telescopic end of the electric cylinder 22 and the insert plate 13, the preferred embodiment of this utility model is as follows: Figure 1 , Figure 4 As shown, the connecting portion 14 on the insert plate 13 includes two ear plates 141 and a detachable pin 142 that passes between the two ear plates 141. The telescopic end of the electric cylinder 22 is provided with a connector 24 that can extend into the space between the two ear plates 141. The connector 24 is provided with a connecting hole 241 for the pin 142 to pass through. During connection, the pin 142 on the ear plate 141 is first removed. When the connecting hole 241 on the connector 24 on the telescopic end of the electric cylinder 22 is aligned with the pin hole on the ear plate 141, the pin 142 is then inserted back in, thus connecting the connector 24 to the connecting portion 14 of the insert plate 13.
[0033] Furthermore, such as Figure 1 , Figure 4As shown, in order to prevent personnel injury caused by the grain gate being broken open during the grain feeding process, a human body sensing module 4 electrically connected to the electric cylinder 22 is also provided on the mounting frame 21. The human body sensing module 4 is configured to activate an alarm when it senses that a person is within one meter of the grain gate 3, and control the electric cylinder 22 to move the insert plate 13 downward to close the grain outlet 31, thus fully ensuring the safety of personnel during the grain feeding process.
Claims
1. A grain gate outlet opening and closing device, characterized in that: The device includes an insert plate mechanism (1) and an actuator (2). The insert plate mechanism (1) includes a support frame (11). The back of the support frame (11) is provided with a guide strip (111) that can slide and cooperate with the sliding groove (32) on both sides of the grain outlet (31) of the grain gate (3). The sides of the support frame (11) are provided with locking members (12) that can make the guide strip (111) abut against the side wall of the sliding groove (32). The front of the support frame (11) is provided with an insert plate (13) that can close the cavity in the middle of the support frame (11) and can slide in the vertical direction. The insert plate (13) is provided with a connecting part (14). The actuator (2) includes an electric cylinder (22) set on the top of the support frame (11). The electric cylinder (22) can be remotely controlled to extend and retract in the vertical direction. The extension end of the electric cylinder (22) is connected to the connecting part (14) on the insert plate (13).
2. The grain gate opening and closing device as described in claim 1, characterized in that: The insert plate mechanism (1) also includes a pressing crossbeam (15), which is fastened to the bottom of the support frame (11) by pressing bolts (112), and the pressing strip (151) on the inner side of the pressing crossbeam (15) abuts against the lower side of the limiting strip (33) below the grain outlet (31), and the lower end of the guide strip (111) abuts against the upper side of the limiting strip (33).
3. The grain gate opening and closing device as described in claim 2, characterized in that: The bottom of the support frame (11) is provided with at least one clamping bolt (112) and at least two guide rods (113) along its length direction. The two are arranged alternately and at even intervals. The clamping beam (15) is provided with a plurality of guide holes (152) for the clamping bolt (112) and guide rods (113) to pass through. After the clamping bolt (112) passes through the guide hole (152), it is connected to the first wing nut (16).
4. The grain gate opening and closing device as described in claim 1, characterized in that: The support frame (11) has a guide groove (114) on the left and right sides in front of it, and the two sides of the insert plate (13) are slidably disposed in the guide groove (114).
5. The grain gate opening and closing device as described in claim 1, characterized in that: The locking element (12) is a knurled hand screw that passes through both sides of the support frame (11) and is threaded to it. The tail of the knurled hand screw can abut against the outer wall of the slide groove (32).
6. The grain gate opening and closing device as described in any one of claims 1-5, characterized in that: The actuator (2) further includes a mounting frame (21), which includes a base plate (211), a connecting plate (212) formed by bending the lower end of the base plate (211), and a support column (213) fixed in the middle of the base plate (211) and connected to the connecting plate (212) at its lower end. The mounting frame (21) is mounted on the top of the support frame (11) through the connecting plate (212), and the electric cylinder (22) is mounted on the support column (213).
7. The grain gate opening and closing device as described in claim 6, characterized in that: The top of the support frame (11) is provided with at least two mounting bolts (115) evenly spaced along its length. The connecting plate (212) is provided with a plurality of through holes (214) for the mounting bolts (115) to pass through. After passing through the through holes (214), the mounting bolts (115) are connected to the second wing nut (17).
8. The grain gate opening and closing device as described in claim 6, characterized in that: The base plate (211) is provided with multiple magnets (23) around its perimeter. When the mounting frame (21) is installed on the support frame (11), the magnets (23) are attracted to the grain gate (3).
9. The grain gate opening and closing device as described in claim 6, characterized in that: The connecting part (14) on the insert plate (13) includes two ear plates (141) and a detachable pin (142) that passes between the two ear plates (141). The telescopic end of the electric cylinder (22) is provided with a connector (24) that can extend into the middle space of the two ear plates (141). The connector (24) is provided with a connecting hole (241) through which the pin (142) passes.
10. The grain gate opening and closing device as described in claim 6, characterized in that: The mounting frame (21) is also equipped with a human body sensing module (4) electrically connected to the electric cylinder (22). The human body sensing module (4) is configured to activate an alarm when it senses that a person is within one meter of the grain gate (3), and control the electric cylinder (22) to move the insert plate (13) downward to close the grain outlet (31).