Plugboard control device for grain outlet of grain blocking door

Abstract

The invention discloses an inserting plate control device for a grain outlet of a grain blocking door in the field of grain storage equipment, the inserting plate control device comprises an inserting plate mechanism and an executing mechanism, the inserting plate mechanism is installed in sliding grooves in the two sides of the grain outlet through guide strips on the back face of a supporting frame, and the executing mechanism comprises an installation rack and an electric cylinder arranged on the installation rack; the mounting rack is detachably connected with the top of the supporting frame, and the telescopic end of the electric cylinder is detachably connected with the connecting part on the inserting plate. In the grain storage period, only the inserting plate mechanism needs to be installed on the grain blocking door, the executing mechanism is installed when the granary is opened for grain discharging, one executing mechanism can be used among a plurality of granaries in a turnover mode, the problem of equipment failures caused by long-term exposure is avoided, and economic benefits are remarkable. Besides, the inserting plate mechanism is fixed in the sliding groove of the grain outlet of the grain blocking door in an inserting mode, the executing mechanism is fixed on the inserting plate mechanism, the original structure of the grain blocking door is not transformed or damaged, and the structural strength and stability of the grain blocking door can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of grain storage equipment, and particularly to a plug control device for the grain outlet of a grain retaining door. Background Art

[0002] At present, when the grain storage starts to discharge grain, generally, a worker approaches the grain retaining door manually to open the plug of the grain outlet, and the grain flows out of the bin by itself through the grain outlet. When the grain discharge flow needs to be adjusted, the worker also needs to approach the grain retaining door manually to adjust the opening size of the plug of the grain outlet. After the self-flowing grain discharge ends, the worker still needs to approach the grain retaining door to close the plug of the grain outlet. This way of discharging grain from the bin requires personnel to stay near the grain retaining door for a long time to manually control the plug of the grain outlet. However, during the self-flowing grain discharge process, the lateral pressure of the grain on the inner side of the grain retaining door is relatively large, and there is a risk of the grain retaining door bursting open, with extremely large potential safety hazards.

[0003] In order to improve safety, there are currently some solutions that set electric push rods on the grain retaining door to control the plug, such as the patent document with the publication number CN210685692U, which discloses a safety warning grain retaining door. By installing an electric push rod on the grain retaining door, the electric push rod is used to control the opening and closing of the plug. The problem with this solution is that since the grain retaining door usually has a structure of a steel skeleton + embedded thermal insulation material + iron sheets on both sides, the structural strength of the grain retaining door is not high. Therefore, in many warehouses, in order to ensure the safety of the grain retaining door, operations such as drilling holes or surface welding on the grain retaining door are not allowed. So, the welding fixing method used for the electric push rod in this solution has limited applicable scenarios. In addition, the storage period of grain in a granary is mostly about 3 years. During this period, the electric push rod is exposed outdoors for a long time, and equipment failures are likely to occur. Moreover, a set of this equipment needs to be installed in each granary, resulting in relatively high usage and subsequent replacement costs. Summary of the Invention

[0004] To overcome the above deficiencies in the existing opening and closing methods of grain retaining doors, the technical problem to be solved by the present invention is to provide a plug control device for the grain outlet of a grain retaining door that does not transform the original structure of the grain retaining door, has low costs, and can be remotely controlled.

[0005] The technical solution adopted by the present invention to solve its technical problems is:

[0006] The plug control device for the grain outlet of the grain retaining door comprises a plug mechanism and an actuator. The plug mechanism includes a support frame. On the back of the support frame, there are guide bars that can be slidably matched with the chutes on both sides of the grain outlet of the grain retaining door. On both sides of the support frame, there are locking parts that can make the guide bars tightly abut against the side walls of the chutes. In front of the support frame, there is a plug that can close the middle cavity of the support frame and slide vertically. The plug is provided with a connecting part. The actuator includes a mounting frame and an electric cylinder arranged on the mounting frame. The electric cylinder can be remotely controlled to expand and contract vertically. The mounting frame is detachably connected to the top of the support frame, and the telescopic end of the electric cylinder is detachably connected to the connecting part on the plug.

[0007] Furthermore, the plug mechanism further includes a pressing cross beam. The pressing cross beam is fastened to the bottom of the support frame by pressing bolts, and the pressing strip on the inner side of the pressing cross beam abuts against the lower side of the limiting strip below the grain outlet, so that the lower end of the guide bar abuts against the upper side of the limiting strip.

[0008] Furthermore, at least one pressing bolt and at least two guide rods are arranged along the length direction of the bottom of the support frame, and they are arranged alternately and evenly at intervals. Corresponding to this, there are a plurality of guide holes on the pressing cross beam for the pressing bolts and the guide rods to pass through. After the pressing bolts pass through the guide holes, they are connected to the first wing nuts.

[0009] Furthermore, a guide groove is respectively arranged on the left and right sides in front of the support frame, and both sides of the plug are slidably arranged in the guide grooves.

[0010] Furthermore, the locking part is a knurled hand-tightening screw that passes through both sides of the support frame and is threadedly connected to it. The tail of the knurled hand-tightening screw can abut against the outer wall of the chute.

[0011] Furthermore, the mounting frame includes a bottom plate, a connecting plate bent from the lower end of the bottom plate, and a support column fixed in the middle of the bottom plate and connected to the connecting plate at the lower end. The electric cylinder is installed on the support column.

[0012] Furthermore, at least two mounting bolts are evenly arranged at intervals along the length direction of the top of the support frame. Corresponding to this, there are a plurality of through holes on the connecting plate for the mounting bolts to pass through. After the mounting bolts pass through the through holes, they are connected to the second wing nuts.

[0013] Furthermore, a plurality of magnets are arranged around the bottom plate. When the mounting frame is installed on the support frame, the magnets are adsorbed on the grain retaining door.

[0014] Furthermore, the connecting part on the plug board includes two ear plates and a pin detachably inserted between the two ear plates. The telescopic end of the electric cylinder is provided with a connecting head that can extend into the middle space between the two ear plates, and the connecting head is provided with a connecting hole for the pin to pass through.

[0015] Furthermore, a human body sensing module electrically connected to the electric cylinder is also provided on the installation frame. The human body sensing module is configured to, when sensing that a person is approaching within one meter of the grain retaining door, activate an alarm and control the electric cylinder to move the plug board downward to close the grain outlet.

[0016] The beneficial effects of the present invention are as follows: The entire device adopts a combination form of a plug board mechanism and an actuator. During the grain storage period, only the plug board mechanism needs to be installed on the grain retaining door, and the actuator is installed during the opening of the warehouse for grain release, realizing remote control of the opening and closing of the plug board. One actuator can be rotated and used among multiple grain bins, and at the same time, it can avoid equipment failure problems caused by the long-term exposure of the actuator, with significant economic benefits; in addition, the plug board mechanism is fixed in the chute of the grain outlet of the grain retaining door by plugging, and the actuator is fixed on the plug board mechanism without modifying and damaging the original structure of the grain retaining door, ensuring the structural strength and stability of the grain retaining door. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 is a schematic diagram of the structure of the grain retaining door of the present invention;

[0019] Figure 3 is a schematic diagram of the back structure of the plug board mechanism of the present invention;

[0020] Figure 4 is a schematic diagram of the structure of the actuator of the present invention.

[0021] In the figure, the markings are: 1 - plug board mechanism, 2 - actuator, 3 - grain retaining door, 4 - human body sensing module, 11 - support frame, 12 - locking part, 13 - plug board, 14 - connecting part, 15 - pressing cross beam, 16 - first wing nut, 17 - second wing nut, 21 - installation frame, 22 - electric cylinder, 23 - magnet, 24 - connecting head, 31 - grain outlet, 32 - chute, 33 - limiting strip, 111 - guiding strip, 112 - pressing bolt, 113 - guiding rod, 114 - guiding groove, 115 - installation bolt, 141 - ear plate, 142 - pin, 151 - pressing strip, 152 - guiding hole, 211 - bottom plate, 212 - connecting plate, 213 - support column, 214 - through hole, 241 - connecting hole. DETAILED DESCRIPTION OF THE INVENTION

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] It should be noted that if there are directional indication terms involved in the present invention, such as the directional and azimuth terms of up, down, left, right, front, and back, they are for facilitating the description of the relative position relationship between components, rather than specifically referring to the absolute positions of relevant components and the positional relationship between components. They are only used to explain the relative position relationship and movement conditions between various components in a specific posture. If this specific posture changes, the directional indication also changes accordingly. If there are terms related to quantity in the present invention, such as "many", "multiple", "several", etc., specifically refer to two or more.

[0024] As Figures 1-3 Shown in the figure, a plug control device for the grain outlet of a grain retaining door provided by the present invention includes a plug mechanism 1 and an actuator 2. The plug mechanism 1 includes a support frame 11. On the back of the support frame 11, there are guide strips 111 that can be slidably matched with the chutes 32 on both sides of the grain outlet 31 of the grain retaining door 3. On both sides of the support frame 11, there are locking members 12 that can make the guide strips 111 tightly abut against the side walls of the chutes 32. In front of the support frame 11, there is a plug 13 that can close the middle cavity of the support frame 11 and can slide vertically. A connecting portion 14 is provided on the plug 13. The actuator 2 includes a mounting frame 21 and an electric cylinder 22 provided on the mounting frame 21. The electric cylinder 22 can be remotely controlled to expand and contract in the vertical direction. The mounting frame 21 is detachably connected to the top of the support frame 11. The telescopic end of the electric cylinder 22 is detachably connected to the connecting portion 14 on the plug 13. Among them, when the guide strips 111 on the back of the support frame 11 are located in the chutes 32, the back of the support frame 11 should be in close contact with the surface of the grain retaining door 3. If necessary, a rubber pad can be provided on the back of the support frame 11. In addition, the range of the middle cavity of the support frame 11 needs to completely surround the grain outlet 31, and the grain outlet 31 is closed by the plug 13 in front of the support frame 11. The locking member 12 can adopt a cam locking mechanism or a bolt locking mechanism. The present invention preferably uses knurled hand-tightening screws. The knurled hand-tightening screws pass through both sides of the support frame 11 and are threadedly connected thereto. By hand-tightening the knurled hand-tightening screws, the tail thereof abuts against the outer wall of the chute 32, so as to realize the tight fixing of the guide strip 111 and the side wall of the chute 32.

[0025] The usage process of the present invention is as follows: Before loading grain into the granary, first remove the original plug board that blocks the grain outlet 31 on the grain retaining door 3 from the chute 32, then slide the guiding strip 111 of the support frame 11 into the chute 32, and then use the locking member 12 to tightly fix the guiding strip 111 and the chute 32, realizing the fixed installation of the plug board mechanism 1 and ensuring that the plug board 13 is in the closed state. After that, the grain loading operation of the granary can be carried out; when it is necessary to discharge grain, first install the mounting frame 21 of the actuator 2 on the support frame 11, connect the power supply, and then start the electric cylinder 22 to make it extend until the telescopic end approaches the connecting portion 14 on the plug board 13 and connect the two together. Then, the electric cylinder 22 can be remotely controlled to retract through the remote control, driving the plug board 13 to move upward, opening the grain outlet 31, and realizing the grain discharging operation.

[0026] Compared with the existing method of manually opening the plug board or fixing an electric push rod on the grain retaining door 3 to open the plug board for grain discharging, the present invention adopts the combined form of the plug board mechanism 1 and the actuator 2. During the grain storage period, only the plug board mechanism 1 needs to be installed on the grain retaining door 3, and the actuator 2 is installed when opening the granary to discharge grain, realizing the remote control of the opening and closing of the plug board 13. One actuator 2 can be rotated and used among multiple granaries, and at the same time, it can avoid the equipment failure problems caused by the long-term exposure of the actuator 2. In addition, the plug board mechanism 1 is fixed in the chute 32 of the grain outlet 31 of the grain retaining door 3 by plugging, and the actuator 2 is fixed on the plug board mechanism 1. The installation of the whole equipment does not transform and damage the original structure of the grain retaining door 3, and can ensure the structural strength and stability of the grain retaining door 3.

[0027] In order to further improve the stability of the installation of the plug board mechanism 1, as Figure 1 、 Figure 3 shown, the plug board mechanism 1 further includes a pressing cross beam 15. The pressing cross beam 15 is fastened to the bottom of the support frame 11 through pressing bolts 112, and the pressing strip 151 on the inner side of the pressing cross beam 15 abuts against the lower side of the limiting strip 33 below the grain outlet 31, and the lower end of the guiding strip 111 abuts against the upper side of the limiting strip 33. The limiting strip 33 is the original structure of the grain retaining door 3 and is used for the vertical limit of the original plug board. The installation process of the pressing cross beam 15 is that when the guiding strip 111 of the support frame 11 slides into the chute 32, ensure that the lower end of the guiding strip 111 contacts the limiting strip 33, and then install the pressing cross beam 15 on the bottom of the support frame 11. Utilize the tensioning effect of the pressing bolts 112 and the support frame 11 to make the pressing strip 151 and the guiding strip 111 form a two-way clamping effect on the limiting strip 33, and finally use the locking member 12 to tightly fix the guiding strip 111 and the chute 32.

[0028] As Figure 3As shown in the figure, in order to ensure that the pressing crossbeam 15 can uniformly press against the limiting strip 33, at least one pressing bolt 112 and at least two guide rods 113 can be arranged along the length direction at the bottom of the support frame 11, and the two are alternately and evenly spaced. For example, there is one pressing bolt 112 in the middle and one guide rod 113 on each side, or two pressing bolts 112 are inserted between three guide rods 113. Corresponding to this, a plurality of guide holes 152 for the pressing bolt 112 and the guide rod 113 to pass through are arranged on the pressing crossbeam 15. After the pressing bolt 112 passes through the guide hole 152, it is connected to the first wing nut 16. Among them, the guide rod 113 and the guide hole 152 are in sliding fit, which plays a guiding role in the movement of the pressing crossbeam 15. The pressing bolt 112 can pass through the guide hole 152. By manually rotating the first wing nut 16, the tensioning effect between the pressing crossbeam 15 and the support frame 11 can be easily achieved.

[0029] For the sliding connection mode of the insertion plate 13 and the support frame 11, the same scheme as the insertion plate of the original grain outlet 31 can be adopted, such as Figure 1 、 Figure 3 As shown in the figure, on the left and right sides in front of the support frame 11, a guide groove 114 is respectively arranged, and the two sides of the insertion plate 13 are slidably arranged in the guide groove 114.

[0030] For the installation frame 21, the preferred scheme of the present invention is, as Figure 4 shown, the installation frame 21 includes a bottom plate 211, a connecting plate 212 bent from the lower end of the bottom plate 211, and a support column 213 fixed in the middle of the bottom plate 211 and connected to the connecting plate 212 at the lower end. The electric cylinder 22 is installed on the support column 213. The connecting plate 212 can be bent at 90°, which is convenient for being vertically fixed on the top of the support frame 11. The support column 213 can include two, which are mainly used to improve the structural strength of the installation frame 21 so that it can support the electric cylinder 22 without deformation. The specific connection mode between the installation frame 21 and the support frame 11 is that at least two installation bolts 115 are uniformly spaced along the length direction at the top of the support frame 11. Corresponding to this, a plurality of through holes 214 for the installation bolts 115 to pass through are arranged on the connecting plate 212. After the installation bolts 115 pass through the through holes 214, they are connected to the second wing nut 17. Using the wing nut for connection can improve the convenience of equipment installation.

[0031] In order to avoid the installation frame 21 from shaking during the working process, a further scheme is that a plurality of magnets 23 are arranged around the bottom plate 211. When the installation frame 21 is installed on the support frame 11, the magnets 23 are adsorbed on the grain retaining door 3, so as to play an auxiliary connection role between the bottom plate 211 and the grain retaining door 3 and ensure the stability of the operation of the electric cylinder 22.

[0032] For the connection mode between the telescopic end of the electric cylinder 22 and the insertion plate 13, a preferred solution of the present invention is as follows: Figure 1 , Figure 4 As shown, the connection part 14 on the insertion plate 13 includes two ear plates 141 and a pin 142 detachably inserted between the two ear plates 141. The telescopic end of the electric cylinder 22 is provided with a connection head 24 that can extend into the middle space between the two ear plates 141, and the connection head 24 is provided with a connection hole 241 for the pin 142 to pass through. When connecting, first remove the pin 142 on the ear plate 141. When the connection hole 241 on the connection head 24 at the telescopic end of the electric cylinder 22 is aligned with the pin hole on the ear plate 141, then insert the pin 142 back to realize the connection between the connection head 24 and the connection part 14 of the insertion plate 13.

[0033] Furthermore, as shown in Figure 1 , Figure 4 , in order to avoid personal injury caused by the breakage and bursting of the grain baffle door during the grain discharging process, a human body sensing module 4 electrically connected to the electric cylinder 22 is further provided on the installation frame 21. The human body sensing module 4 is configured to activate an alarm and control the electric cylinder 22 to move the insertion plate 13 downward to close the grain outlet 31 when it senses that a person is approaching within one meter of the grain baffle door 3, fully ensuring the personal safety during the grain discharging process.

Claims

1. A gate control device for blocking the grain outlet of a grain gate, characterized in that: The invention comprises a plug-in mechanism (1) and an actuator (2), wherein the plug-in mechanism (1) comprises a support frame (11), the back of the support frame (11) is provided with a guide bar (111) which can slide with the slide grooves (32) on both sides of the grain outlet (31) of the grain blocking door (3), the two sides of the support frame (11) are provided with locking members (12) which can make the guide bar (111) and the side walls of the slide groove (32) abut against each other, and the front of the support frame (11) is provided with a locking member (12) which can close the middle of the support frame (11). The invention relates to a plug plate (13) having a hollow cavity and capable of sliding in a vertical direction, wherein the plug plate (13) is provided with a connecting portion (14); the actuator (2) comprises a mounting frame (21) and an electric cylinder (22) arranged on the mounting frame (21), wherein the electric cylinder (22) can be remotely controlled to be telescopically extended in a vertical direction, the mounting frame (21) is detachably connected to the top of the supporting frame (11), and the telescopic end of the electric cylinder (22) is detachably connected to the connecting portion (14) on the plug plate (13).

2. The gate control device for the grain outlet of the grain blocking door according to claim 1, characterized in that: The plugging plate mechanism (1) also includes a clamping beam (15), which is fastened to the bottom of the support frame (11) by a clamping bolt (112), and a clamping strip (151) on the inner side of the clamping beam (15) is in contact with the lower side of the limit strip (33) below the grain outlet (31), so that the lower end of the guide strip (111) is in contact with the upper side of the limit strip (33).

3. The gate control device for the grain outlet of the grain blocking door according to 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, and the two are arranged alternately and evenly spaced, and the clamping crossbeam (15) is correspondingly provided with a plurality of guide holes (152) for the clamping bolts (112) and the guide rods (113) to pass through, and the clamping bolts (112) are connected to the first butterfly nuts (16) after passing through the guide holes (152).

4. The gate control device for the grain outlet of the grain blocking door according to claim 1, characterized in that: A guide groove (114) is respectively provided on the left and right sides of the front of the support frame (11), and the two sides of the plug plate (13) are slidably arranged in the guide groove (114).

5. The gate control device for the grain outlet of the grain blocking door according to claim 1, characterized in that: The locking member (12) is a knurled thumb screw that passes through both sides of the support frame (11) and is threadedly connected thereto, and the tail of the knurled thumb screw can abut against the outer wall of the slide groove (32).

6. The gate control device for a grain outlet of a grain blocking door according to any one of claims 1 to 5, characterized in that: The mounting frame (21) comprises a bottom plate (211), a connecting plate (212) formed by bending the lower end of the bottom plate (211), and a supporting column (213) fixed to the middle of the bottom plate (211) and connected to the connecting plate (212) at the lower end; the electric cylinder (22) is mounted on the supporting column (213).

7. The gate control device for the grain outlet of the grain blocking door according to claim 6, characterized in that: At least two mounting bolts (115) are evenly spaced at the top of the support frame (11) along its length direction, and a plurality of through holes (214) for the mounting bolts (115) to pass through are correspondingly arranged on the connecting plate (212), and the mounting bolts (115) are connected to the second butterfly nuts (17) after passing through the through holes (214).

8. The gate control device for the grain outlet of the grain blocking door according to claim 6, characterized in that: A plurality of magnets (23) are arranged around the bottom plate (211); when the mounting frame (21) is mounted on the supporting frame (11), the magnets (23) are adsorbed on the grain blocking door (3).

9. The gate control device for the grain outlet of the grain blocking door according to claim 1, characterized in that: The connecting portion (14) on the plug plate (13) comprises two ear plates (141) and a detachable pin (142) inserted between the two ear plates (141); the telescopic end of the electric cylinder (22) is provided with a connecting head (24) which can extend into the middle space of the two ear plates (141); and the connecting head (24) is provided with a connecting hole (241) for the pin (142) to pass through.

10. The gate control device for the grain outlet of the grain blocking door according to claim 1, characterized in that: The mounting frame (21) is also provided with a human body sensing module (4) electrically connected to the electric cylinder (22). The human body sensing module (4) is configured to, when sensing that a person is approaching within a one-meter range of the grain blocking door (3), activate an alarm and control the electric cylinder (22) to move the plug plate (13) downwards to close the grain outlet (31).

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