Opening and closing device for grain blocking door

Abstract

The utility model relates to the technical field of grain blocking doors, and discloses an opening and closing device for a grain blocking door, which comprises an outer frame, an inner door arranged on the inner side of the outer frame, an opening and closing mechanism arranged at the top end of the outer frame, the outer frame comprises a grain blocking door frame, and the inner door is positioned in the grain blocking door frame and seals an inner opening of the grain blocking door frame. The inner door comprises three grain blocking door plates which are horizontally arranged at equal intervals, and a connecting shaft is fixedly connected to the middle of the top end of each grain blocking door plate. According to the utility model, the simple and efficient electric opening and closing structure design is adopted, the electric structure is a speed reduction driving power structure, and the power structure synchronously drives the three grain blocking doors through a belt transmission structure, so that the opening of the door frame of each grain blocking door can be closed or opened, an electric synchronous control structure is not needed, and the operation is simple and convenient. The whole driving and synchronizing structure is simple, direct and efficient, namely, the system of the opening and closing device is not complex, and the arrangement and maintenance cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of grain blocking door, concretely is a opening and closing device for grain blocking door. BACKGROUND

[0002] The opening and closing device for grain blocking door takes hydraulic opening and closing device as an example, starts the oil pump, transports the hydraulic oil from the oil tank to one chamber of the hydraulic cylinder through the pipeline, drives the piston and piston rod to move, thereby driving the grain blocking door to open, when operating reversely, changes the flow direction of the hydraulic oil, makes the piston rod retract, and closes the grain blocking door. The working principle of the pneumatic opening and closing device is similar, except that the driving medium is compressed air. This mode can provide a large thrust, and is suitable for large and heavy grain blocking doors, but the system is relatively complex and the cost is high.

[0003] The existing opening and closing device for grain blocking door has the following problems when in use: the hydraulic or pneumatic opening and closing device system is complex and high in cost, that is, the hydraulic or pneumatic system involves many components, including cylinder body, oil pump or compressor, pipeline, valve, etc., the system is complex, the installation, maintenance and repair cost is high, at the same time, the hydraulic oil or compressed air may leak, the hydraulic oil leakage will pollute the grain, the compressed air leakage will cause the system pressure to be insufficient, affecting the normal opening and closing of the grain blocking door. UTILITY MODEL CONTENT

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides an opening and closing device for grain blocking door, which solves the problems raised in the background art.

[0006] (II) Technical scheme

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an opening and closing device for grain blocking door, comprising an outer frame, an inner door is arranged on the inner side of the outer frame, an opening and closing mechanism is arranged on the top end of the outer frame, the outer frame comprises a grain blocking door frame, the inner door is located in the grain blocking door frame and closes the inner side opening thereof, the inner door comprises three grain blocking door panels arranged in a horizontal equidistant manner, a connecting shaft is fixedly connected to the top end of the middle position of the grain blocking door panel, a rotating through hole for the three connecting shafts is formed in the upper side wall of the inner side of the grain blocking door frame, the opening and closing mechanism comprises a speed reduction drive mechanism fixedly installed in the middle part of the top end of the grain blocking door frame, a synchronous belt mechanism is arranged on the output end of the speed reduction drive mechanism, and the synchronous belt mechanism and the three connecting shafts are arranged in a matching manner.

[0008] As a further scheme of the utility model: the reduction drive mechanism includes the fixed mounting of the fixed frame and the driving motor in the grain blocking door frame top end, the fixed frame is located in the driving motor front end, the fixed frame top end is fixedly installed with the speed reducer, the output shaft of the driving motor top is fixedly connected with the power input end of the speed reducer bottom.

[0009] As a further scheme of the utility model: the synchronous belt mechanism includes the pulley fixedly connected to the three connecting shaft top ends, the pulley is connected with the pulley at both ends through a transmission belt, and the pulley top end is fixedly connected with the speed reducer bottom reduction drive shaft.

[0010] As a further scheme of the utility model: the grain blocking door door plate front and rear ends are provided with a groove on the outer side wall, a group of reinforcing ribs are fixedly connected to the groove inner wall, and a group of the reinforcing ribs are multiple and arranged in equal distance from top to bottom.

[0011] As a further scheme of the utility model: a group of matching assembly grooves are formed on the both sides of the grain blocking door frame rear end, a group of the matching assembly grooves are two and arranged in up-down symmetry, and the grain blocking door frame top end is fixedly connected with the baffle on the rear side of the opening and closing mechanism.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、In the utility model, the simple and efficient electric opening and closing structure is adopted, the electric structure is a reduction drive power structure, the power structure is driven through the belt transmission structure to synchronously drive three grain blocking doors, the opening and closing of the grain blocking door frame can be realized, the overall drive and synchronous structure are simple, direct and efficient, the system of the opening and closing device is not complex, and the arrangement and maintenance cost are low.

[0014] 2、In the utility model, the three grain blocking door plates adopt the lightened reinforced structure design, a lightened groove is formed at the front and rear ends of the grain blocking door plate, a group of reinforcing ribs are fixedly connected to the inner wall of the lightened groove, and a group of the reinforcing ribs are multiple and arranged in equal distance from top to bottom, compared with the solid door plate, the overall grain blocking door plate can guarantee the overall strength while reducing the self weight, and is beneficial to being driven to rotate. DRAWINGS

[0015] Fig. 1 It is the overall perspective view of the utility model;

[0016] Fig. 2 It is the outer frame perspective view of the utility model;

[0017] Fig. 3 It is the inner door perspective view of the utility model;

[0018] Fig. 4 The utility model discloses a three-dimensional view of the opening and closing mechanism.

[0019] In the figure: 1, outer frame;2, inner door;3, opening and closing mechanism;11, block grain door frame;12, fit assembly groove;13, through hole;14, baffle;21, block grain door panel;22, connecting shaft;23, recess;24, reinforcing rib;31, drive motor;32, fixed frame;33, speed reducer;34, speed reduction drive shaft;35, pulley;36, transmission belt. DETAILED DESCRIPTION

[0020] The embodiments of the utility model will be described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0021] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two;The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the device or element indicated or implied to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the utility model, it is necessary to point out that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0023] Please refer to Figs. 1-4The utility model discloses an open and close device for blocking grain door, including outer frame 1, the inner side of outer frame 1 is provided with inner door 2, and the top of outer frame 1 is provided with open and close mechanism 3, and outer frame 1 includes a blocking grain door frame 11, and inner door 2 is located in blocking grain door frame 11 and closes its inner side opening, and inner door 2 includes three blocking grain door panels 21 that are horizontally equidistant, and the middle position of the top of blocking grain door panel 21 is fixedly connected with connecting shaft 22, and the upper side of the inner wall of blocking grain door frame 11 is provided with three connecting shafts 22 rotating through -hole 13, and open and close mechanism 3 includes the reduction drive mechanism of fixed mounting in the middle of the top of blocking grain door frame 11, and the output end of reduction drive mechanism is provided with synchronous belt mechanism, and synchronous belt mechanism is matched with three connecting shafts 22, and it adopts simple and efficient electric open and close structure design, and its electric structure is a reduction drive power structure, and the power structure is driven through the synchronous belt transmission structure three blocking grain door panels 21, and the opening of blocking grain door frame 11 can be closed or opened, and it does not need electric control synchronous control structure, and the overall drive and synchronous structure are simple, direct, efficient, and the system of open and close device is not complicated, and the arrangement and maintenance cost are all lower.

[0024] The reduction drive mechanism includes the fixed frame 32 of fixed mounting in the top of blocking grain door frame 11 and drive motor 31, and fixed frame 32 is located in the front end of drive motor 31, and fixed frame 32 top is fixedly installed with reducer 33, and the output shaft of drive motor 31 top is fixedly connected with the power input end of reducer 33 bottom, and the drive motor 31 can input power for reducer 33.

[0025] The synchronous belt mechanism includes pulley 35 of fixed connection in the top of three connecting shafts 22, and the middle end pulley 35 is connected with the pulley 35 of two ends through a transmission belt 36, and the top of middle end pulley 35 is fixedly connected with the reduction drive shaft 34 of reducer 33 bottom, and the reduction drive shaft 34 of reducer 33 drives the rotation of middle end pulley 35, and can drive the rotation of middle end connecting shaft 22, and can drive the synchronous rotation of two side connecting shafts 22 through two side transmission belts 36 and two side pulleys 35, and can realize the synchronous rotation of three blocking grain door panels 21.

[0026] The recess 23 is formed in the outer wall of the front and rear ends of blocking grain door panel 21, and a group of reinforcing ribs 24 are fixedly connected to the inner wall of recess 23, and the group of reinforcing ribs 24 are multiple and equidistantly arranged from top to bottom, and the three blocking grain door panels 21 adopt the weight-reducing and reinforcing structure design, and a weight-reducing groove, i.e., recess 23, is formed in the front and rear ends of blocking grain door panel 21, and a group of reinforcing ribs 24 are fixedly connected to the inner wall of weight-reducing groove, and the group of reinforcing ribs 24 are multiple and equidistantly arranged from top to bottom, and compared with the solid door panel, the overall blocking grain door panel 21 ensures the overall strength while reducing the weight, and is beneficial to be driven to rotate.

[0027] The whole grain blocking door frame 11 is fixedly installed at the opening of the granary through the rear end matching assembly groove 12, the top end of the whole grain blocking door frame 11 and the rear side of the opening and closing mechanism 3 are fixedly connected with the baffle 14, and the baffle 14 plays a protection role of the opening and closing mechanism 3.

[0028] The working principle of the utility model is: the whole grain blocking door frame 11 is fixedly installed at the opening of the granary through the rear end matching assembly groove 12, the whole opening and closing device adopts a simple and efficient electric opening and closing structure design, and the electric structure is a power structure of a speed reducer, the power structure is synchronously driven through the belt transmission structure to drive the three grain blocking door plates 21, that is, the driving motor 31 can input power to the speed reducer 33, the speed reducer 33 drives the middle pulley 35 to rotate through the speed reduction driving shaft 34, and the middle connecting shaft 22 can be driven to rotate, and the two side transmission belts 36 can drive the two side connecting shafts 22 to synchronously rotate through the two side pulleys 35, that is, the three grain blocking door plates 21 can synchronously rotate, the opening and closing of the whole grain blocking door frame 11 can be realized, the electric control synchronous control structure is not needed, the whole driving and synchronous structure is simple, direct and efficient, the system of the opening and closing device is not complex, and the arrangement and maintenance cost are low, in addition, the three grain blocking door plates 21 adopt the lightening and reinforcing structure design, the front and rear ends of the grain blocking door plate 21 are provided with a lightening groove, that is, the groove 23, and a group of reinforcing ribs 24 are fixedly connected to the inner wall of the lightening groove, the group of reinforcing ribs 24 are multiple and are arranged at equal distances from top to bottom, compared with the solid door plate, the whole grain blocking door plate 21 can guarantee the whole strength while reducing the weight, and the driven rotation is facilitated.

[0029] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, and all should be covered in the protection scope of the utility model.

Claims

1. An opening and closing device for a grain gate, comprising an outer frame (1), an inner door (2) provided on the inner side of the outer frame (1), and an opening and closing mechanism (3) provided on the top of the outer frame (1); Its features are: The outer frame (1) includes a grain-blocking door frame (11), and the inner door (2) is located inside the grain-blocking door frame (11) and closes its inner opening. The inner door (2) includes three grain-blocking door panels (21) arranged horizontally at equal intervals. A connecting shaft (22) is fixedly connected to the middle position of the top of the grain-blocking door panel (21), and a through hole (13) for the three connecting shafts (22) to rotate is provided on the upper side wall of the grain-blocking door frame (11); The opening and closing mechanism (3) includes a deceleration drive mechanism fixedly installed at the top center of the grain gate frame (11). The output end of the deceleration drive mechanism is provided with a synchronous belt mechanism, which is matched with three connecting shafts (22).

2. The opening and closing device for a grain-blocking gate according to claim 1, characterized in that: The speed reduction drive mechanism includes a fixed frame (32) and a drive motor (31) fixedly installed on the top of the grain gate frame (11). The fixed frame (32) is located at the front end of the drive motor (31). A speed reducer (33) is fixedly installed on the top of the fixed frame (32). The output shaft of the top of the drive motor (31) is fixedly connected to the power input end of the bottom of the speed reducer (33).

3. The opening and closing device for a grain-blocking gate according to claim 1, characterized in that: The synchronous belt mechanism includes pulleys (35) fixedly connected to the top of three connecting shafts (22), the middle pulley (35) is connected to the pulleys (35) at both ends by a transmission belt (36), and the top of the middle pulley (35) is fixedly connected to the bottom reduction drive shaft (34) of the reducer (33).

4. The opening and closing device for a grain-blocking gate according to claim 1, characterized in that: The grain-blocking door panel (21) has a groove (23) on each of its front and rear outer side walls, and a set of reinforcing ribs (24) are fixedly connected to the inner wall of the groove (23).

5. The opening and closing device for a grain-blocking gate according to claim 4, characterized in that: A group of the reinforcing ribs (24) are multiple and are arranged at equal intervals from top to bottom.

6. The opening and closing device for a grain-blocking gate according to claim 1, characterized in that: The grain gate frame (11) has a set of fitting grooves (12) on each side of its rear end. There are two fitting grooves (12) in a set and they are arranged symmetrically from top to bottom.

7. The opening and closing device for a grain-blocking gate according to claim 1, characterized in that: A baffle (14) is fixedly connected to the top of the grain gate frame (11) and to the rear side of the opening and closing mechanism (3).

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