CN221119628U - Split type grain storage bin airtight door - Google Patents

Abstract

The utility model discloses a split type grain bin airtight door which comprises a door frame body and a door leaf, wherein the door leaf is hinged on the door frame body through a hinge, an opening and closing device is arranged on the door leaf, the door leaf adopts a left door leaf and a right door leaf which are arranged in a split mode, the left door leaf and the right door leaf are respectively provided with a set of opening and closing device, sealing strip mounting grooves are annularly arranged on the door leaf closing surface of the door frame body, a closing notch is arranged at the door leaf split position of the sealing strip mounting grooves, sealing rubber is arranged in the sealing strip mounting grooves and the closing notch, knife-type embedded pressing strips for pressing the sealing rubber are arranged on the inner peripheries of the left door leaf and the right door leaf, a groove is vertically arranged on the left door leaf closing surface of the right door leaf, and knife-type door leaf closing pressing strips for pressing the door leaf closing rubber are vertically arranged on the right door leaf closing surface of the left door leaf. The split type grain storage airtight door is ingenious in structure arrangement, good in heat preservation airtight effect and capable of achieving national primary grain storage standards.

Description

Split type grain storage bin airtight door

Technical Field

The utility model relates to the technical field of grain storage equipment, in particular to a split type grain storage bin airtight door.

Background

The air tightness of the granary is of great importance, and the air tightness is closely related to the insecticidal effect of stored grains, the cost of stored grains and the heat preservation and air tightness effect of the granary. Especially, the existing method is to realize green grain storage, and replace chemical fumigation disinsection by gas-regulating nitrogen-filling or carbon dioxide-filling disinsection, the air tightness of the grain storage bin is an indispensable requirement, otherwise, the green grain storage is a sentence of blank. The prior granary has the air tightness national standard requirements: the half-life pressure of 500-250 Pa is not lower than 300s, the second-level air-conditioning bin is not lower than 120s, and the third-level air-conditioning bin is between 240s and 300 s. In the airtight standard modification manuscript, the warehouse is expanded from a flat warehouse to a shallow round warehouse and a silo, the pressure half life of the warehouse standard of 500-250 Pa is increased to 10min, and the airtight requirement of parts like doors and windows is increased only to ensure that the airtight of the whole warehouse meets the requirement. The air tightness is not high in the actual use of the warehouse at present, and the main reason is that the air tightness of doors and windows is too low, so that the air conditioning technology cannot be used, and the high-standard granary for green warehouse cannot be used.

In addition, the air tightness of the conventional horizontal warehouse is mostly poor, and the conventional warehouse door can only improve the air tightness of the warehouse by a sealing process of pre-burying a plastic groove pipe and adding a sealing film, but the method is the most heavy in the prior grain warehouse, and a custodian does not want to do and has to do work, so that the method for sealing the grain warehouse by using the film through manual operation is more unfavorable along with the contradiction of difficult and expensive labor. Therefore, in order to improve the tightness of the grain storage bin door, the traditional bin door is improved and developed, and the publication also reports some grain storage bin air-tightness doors, for example:

1. Chinese patent: warehouse sealing door, application number: 202010042291.6, filing date: 2020.01.15, abstract: the invention discloses a warehouse sealing door which is of a two-way split type and comprises a door leaf and a door lock, wherein the door leaf is arranged on a door frame through a door shaft; the door leaves are divided into left door leaves and right door leaves; the left door leaf and the right door leaf respectively comprise a sealed door frame and a door plate arranged in the sealed door frame; the sealed door frame is of a rectangular structure formed by assembling four frames; the door lock comprises fixing buckles symmetrically fixed at the upper end and the lower end of the door frame and a locking device arranged at the outer side of the door leaf; the locking device comprises a stop lever vertically arranged on the outer side of the door leaf, clamp heads respectively arranged at two ends of the stop lever and used in cooperation with the fixing buckle, and a locking mechanism arranged on the stop lever. The sealing door has good sealing performance and shock resistance, and effectively prevents external water vapor and dust from entering the granary; the sealing door is convenient to open and close, high in door opening and closing efficiency and time-saving and labor-saving.

2. Chinese patent: granary sealing door, application number: 201220475681.3, filing date: 2012.09.18, abstract: a sealing door for a granary belongs to the field of granary storage equipment, and particularly relates to a sealing door for a granary. The method is characterized in that: the door comprises a door frame (1), door leaves (2) and locking devices, wherein the outer side edges of the two door leaves (2) are hinged to the door frame (1) through door shafts (3), the locking devices are arranged on the inner side edges of the two door leaves (2), and locking heads (9) at two ends of each locking device are buckled with locking seats (11) correspondingly arranged on the door frame (1). The utility model has the advantages of simple structure, good sealing performance, convenient opening and the like.

3. Chinese patent: sealing door for granary, application number: 202021132100.7, filing date: 2020.06.17, abstract: the utility model relates to a sealing door for a granary, which relates to the technical field of granary equipment and comprises a door frame and a door body hinged with the door frame, wherein the door frame comprises a frame body and a protection plate connected with the frame body, the protection plate is connected with the frame body to form a mounting cavity connected with a wall body, an L-shaped sealing strip is arranged in the mounting cavity, and the inner wall of the L-shaped sealing strip is attached to two side walls perpendicular to the wall body. The utility model has the characteristic of good sealing effect

Practical application researches show that the bottom of the door frame of the existing grain bin airtight door is poor in air tightness, sealing rubber is easy to squeeze and deform, the service life is short, the adhesive tape cannot play an airtight role after being squeezed and deformed, the extrusion area of a door leaf and the sealing rubber is large, the door leaf cannot be tightly contacted and extruded with the sealing rubber, and the airtight heat preservation performance is poor; in addition, the radian of the sealing strip at the corner is too small, and the reasons cause insufficient air tightness, especially when a side-by-side combination door is adopted, the defect of poor air tightness of the closing surface of the side-by-side combination door exists. And because the intensity of the window sashes is insufficient, according to GB50320-2014 'grain bungalow warehouse design Specification' 4.2.6 th test, the window sashes generate unrecoverable deformation, and the airtight effect is seriously affected.

Disclosure of Invention

The utility model aims to provide a split type grain storage airtight door which is ingenious in structural arrangement, good in reliability and thermal insulation airtight effect and unlikely to cause sealing failure due to the fact that sealing rubber is deformed by compression.

In order to achieve the purpose of the utility model, the technical scheme adopted is as follows:

The utility model provides a split type grain store airtight door, includes the door frame body and door leaf, the door leaf pass through the hinge and install on the door frame body, open or close the door leaf through opening or can open or airtight with the internal space of door frame, the door leaf on install headstock gear, the door leaf adopt left door leaf and the right door leaf that are the split setting, a set headstock gear is installed respectively to left door leaf and right door leaf, the door leaf closed surface annular of the door frame body set up the sealing strip mounting groove, the door leaf of sealing strip mounting groove is provided with closed notch to the department of opening, sealing strip mounting groove and closed notch are all placed sealing rubber in, the inboard periphery of left door leaf and right door leaf all is provided with the sword formula and inlays the layering that is used for squeezing sealing rubber, the left door leaf closed surface vertical of right door leaf is provided with the recess, the right door leaf closed surface vertical of left door leaf is provided with the sword formula closed layering that is used for squeezing closed rubber. The corners of the sealing rubber and the sealing strip mounting groove are arc-shaped excessively. When the waterproof roll is installed, the lower part of the door frame body is sealed with the waterproof roll under the floor of the grain storage bin by sealing glue.

Further preferred is: the interlayer of the left door leaf and the right door leaf is filled with a foaming heat-insulation airtight layer. The heat transfer can be reduced by arranging the foaming heat-insulating airtight layer, and the heat-insulating capability of the door leaf is improved.

Further preferred is: the opening and closing device is a worm and gear combined connecting rod type opening and closing device, the opening and closing device comprises an upper push rod, a worm and gear box assembly and a lower push rod, the worm and gear box assembly is respectively arranged on the inner sides of a left door leaf and a right door leaf, an input shaft of the worm and gear box assembly extends out of the door leaf and is connected with a rotating disc, a sealing ring is arranged between the input shaft and the door leaf, an output shaft of the worm and gear box assembly is provided with a screw rod, the screw rod is supported by a bearing seat arranged on the door leaf, a screw rod nut is arranged on the screw rod, two sides of the screw rod nut are respectively hinged with a hinge arm, one end of the hinge arm is hinged with the screw rod nut, the other end of the hinge arm is respectively hinged with the bottom end of the upper push rod and the top end of the lower push rod, the top end of the upper push rod is hinged with an upper lock column vertically slidably arranged in an upper guide seat, the bottom end of the lower push rod is hinged with a lower lock column vertically slidably arranged in a lower guide seat, the upper guide seat and the lower guide seat is fixedly arranged on the door leaf, the upper end of the lower push rod is hinged with a hinge shaft fixed on the door leaf, and the door frame body is provided with a lock hole for inserting the lock column.

This airtight door structure of split type grain store up is set up ingenious, the door leaf of door leaf closed surface annular setting at the door frame body is divided the department and is provided with closed notch to the door leaf of sealing strip mounting groove, has all placed sealing rubber in sealing strip mounting groove and the closed notch, and the inboard periphery of left door leaf and right door leaf all is provided with the sword formula of being used for compressing sealing rubber and inlays the layering, has the spacing protection of sealing strip mounting groove, can guarantee that sealing rubber is difficult to be by compression deformation and cause sealed inefficacy. Sealing rubber is also arranged in the closed notch, a groove is vertically arranged on the closed surface of the left door leaf combined with the right door leaf, door leaf closing rubber is arranged in the groove, a knife type door leaf closing pressing bar for pressing the door leaf closing rubber is vertically arranged on the closed surface of the right door leaf, the knife type embedded pressing bar and the knife type door leaf closing pressing bar can be both pressed and embedded into the corresponding sealing rubber, the air tightness is good, the sealing is reliable, and a worm gear and worm combined connecting rod type opening and closing device can be adopted. The waterproof sealing gasket is paved between the door frame body of the split type grain storage airtight door and the floor of the grain storage bin, the bottom surface and one side surface of the waterproof sealing gasket are matched and sealed with the floor, the other side of the waterproof sealing gasket is matched and sealed with the door frame, and the arrangement of the waterproof sealing gasket can reduce air leakage caused by loosening of the door frame body and the floor of the grain storage bin; when the airtight test is carried out after the airtight door of the grain storage bin is installed in the test bin, the air pressure in the test bin is reduced from 1000Pa to 500Pa, the pressure half-life period is more than 10min, and the heat preservation airtight effect reaches and exceeds the first-level national grain storage bin standard.

Drawings

FIG. 1 is a schematic perspective view of an airtight door of a split type grain storage;

FIG. 2 is a schematic view of the structure of the airtight door of the split type grain storage bin in a closed state;

FIG. 3 is a schematic view in the direction A-A of FIG. 2;

FIG. 4 is an enlarged partial schematic view of FIG. 2;

FIG. 5 is a schematic view of a door frame;

fig. 6 is a schematic top view of the door leaf when not closed;

FIG. 7 is a schematic view of the placement of the waterproof gasket with the door frame;

The part name of the serial number in the figure is:

1. The door comprises a door frame body, 2, a left door leaf, 3, a rotating disc, 4, a hinge, 5, sealing rubber, 6, a closed notch, 7, a lock hole, 8, a right door leaf, 9, an upper guide seat, 10, an upper lock column, 11, an upper push rod, 12, a worm and gear box assembly, 13, a bearing seat, 14, a screw rod, 15, a hinge arm, 16, a screw rod nut, 17, a lower lock column, 18, a lower guide seat, 19, a hinge shaft, 20, a lower push rod, 21, a knife type embedded pressing strip, 22, a knife type door leaf closed pressing strip, 23, door leaf closed rubber, 24, a foaming heat insulation airtight layer, 25, a waterproof coiled material, 26 and a floor.

Description of the embodiments

The following examples illustrate the present technology in further detail for clarity of description.

Examples

The utility model provides a split type grain store airtight door, includes door frame body 1 and door leaf, the door leaf articulated mounting on door frame body 1 through hinge 4, open or close the door leaf and can open or seal the space in the door frame body 1, the door leaf on install headstock gear, the door leaf adopt left door leaf 2 and right door leaf 8 that are the split setting, a set headstock gear is installed respectively to left door leaf 2 and right door leaf 8, the door leaf closed surface annular setting's of door frame body 1 sealing strip mounting groove, the door leaf split department of sealing strip mounting groove is provided with closed notch 6, all placed sealing rubber 5 in sealing strip mounting groove and the closed notch 6, the inboard periphery of left door leaf 2 and right door leaf 8 all is provided with the sword type and inlays layering 21 that are used for compressing sealing rubber 5, the left door leaf 2 closed surface of right door leaf 8 is vertical to be provided with the recess, has placed door leaf closed rubber 23 in the recess, the right door leaf 8 closed surface of left door leaf 2 is vertical to be provided with the sword type and is used for compressing door leaf closed rubber 23.

The interlayer of the left door leaf 2 and the right door leaf 8 is filled with a foaming heat-insulating airtight layer 24.

The opening and closing device is a worm and gear combined connecting rod type opening and closing device, the opening and closing device comprises an upper push rod 11, a worm and gear box assembly 12 and a lower push rod 20, wherein the worm and gear box assembly 12 is respectively arranged on the inner sides of a left door leaf 2 and a right door leaf 8, an input shaft of the worm and gear box assembly 12 extends out of the door leaf and is connected with a rotating disc 3, a sealing ring is arranged between the input shaft and the door leaf, an output shaft of the worm and gear box assembly 12 is provided with a screw rod 14, the screw rod 14 is supported by a bearing seat 13 arranged on the door leaf, a screw rod nut 16 is arranged on the screw rod 14, two sides of the screw rod nut 16 are respectively hinged with a hinge arm 15, one end of the hinge arm 15 is hinged with the screw rod nut 16, the other end of the hinge arm 15 is respectively hinged with the bottom end of the upper push rod 11 and the top end of the lower push rod 20, the top end of the upper push rod 11 is hinged with an upper lock column 10 vertically slidably arranged in an upper guide seat 9, the bottom end of the lower push rod 20 is hinged with a lower lock column 17 vertically slidably arranged in a lower guide seat 18, the upper guide seat 9 and the lower guide seat 18 are both fixedly arranged on the upper guide seat 20 and the upper end of the door leaf 20 through a bearing seat 13, two hinge arms are respectively hinged with the upper lock column 17 and the upper door leaf 7 and the lower door leaf are fixedly arranged on the upper door leaf and the upper door leaf 7.

Examples

The distinguishing features from example 1 are that: when the door frame is installed, the lower part of the door frame body 1 and the waterproof coiled material 25 under the floor 26 of the grain storage bin are sealed by sealing glue.

The opening and closing process of the split type grain storage airtight door is as follows: when the door is closed, the right door leaf 8 is pushed by force, the knife-type embedded pressing strip 21 of the right door leaf 8 presses the sealing rubber 5 in the sealing strip mounting groove and the closed notch 6, the rotating disc 3 of the right door leaf 8 is rotated, the screw rod 14 is driven to rotate, so that the screw rod nut 16 moves upwards on the screw rod 14, the hinged arm 15 pushes the upper push rod 11 to move upwards, pushes the lower push rod 20 to swing downwards, the upper lock cylinder 10 is driven to move upwards in the upper guide seat 9 and is inserted into the corresponding lock hole 7 at the upper part of the door frame body 1 when the upper push rod 11 is pushed to move upwards, and the lower lock cylinder 17 is driven to move downwards in the lower guide seat 18 and is inserted into the corresponding lock hole 7 at the lower part of the door frame body 1 when the lower push rod 20 is pushed to swing downwards; then the left door leaf 2 is pressed by force, the sealing rubber 5 in the sealing strip mounting groove and the closing notch 6 is pressed by the knife-type embedded pressing strip 21 of the left door leaf 2, the door leaf closing rubber 23 is pressed by the knife-type door leaf closing pressing strip 22, the rotating disc 3 of the left door leaf 2 is rotated, the screw rod 14 is driven to rotate, the screw rod nut 16 is enabled to move upwards on the screw rod 14, the hinge arm 15 is enabled to push the upper push rod 11 to move upwards, the lower push rod 20 is pushed to swing downwards, the upper lock column 10 is driven to move upwards in the upper guide seat 9 and is inserted into the lock hole 7 in the upper portion of the door frame body 1 when the upper push rod 11 is pushed to move upwards, and the lower lock column 17 is driven to move downwards in the lower guide seat 18 and is inserted into the lock hole 7 in the lower portion of the door frame body 1 when the lower push rod 20 is pushed to swing downwards, so that the door leaf is closed. When the door is opened, the rotating disc 3 of the left door leaf 2 is rotated firstly, the screw rod 14 is driven to rotate, so that the screw rod nut 16 moves downwards on the screw rod 14, the articulated arm 15 pulls the upper push rod 11 to move downwards, pushes the lower push rod 20 to swing upwards, the upper lock column 10 is driven to move downwards in the upper guide seat 9 when the upper push rod 11 is pushed to move downwards so as to separate from the corresponding lock hole 7, the lower lock column 17 is driven to move upwards in the lower guide seat 18 when the lower push rod 20 is pushed to swing upwards so as to separate from the corresponding lock hole 7, and the left door leaf 2 can be opened; the right door leaf 8 is opened by rotating the rotating disc 3 of the right door leaf 8 in the same way. When the airtight test is carried out after the airtight door of the split type grain storage bin is arranged in the test bin, the air pressure in the test bin is reduced from 1000Pa to 500Pa, and the half life of the air pressure exceeds 10min.

The above description is not intended to limit the application to the particular embodiments disclosed, but to limit the application to the particular embodiments disclosed, as many variations, modifications, additions and substitutions are possible, without departing from the scope and spirit of the application as disclosed in the accompanying claims.

Claims (4)

1. The utility model provides a half-open type grain store up airtight door, includes door frame body (1) and door leaf, the door leaf articulated mounting on door frame body (1) through hinge (4), the door leaf on install headstock gear, its characterized in that: the door leaf adopt left door leaf (2) and right door leaf (8) that are the setting of folio, a set of headstock gear is installed respectively to left door leaf (2) and right door leaf (8), the door leaf closed surface annular of the door frame body (1) set up the sealing strip mounting groove, the door leaf of sealing strip mounting groove is folio and is provided with closed notch (6), sealing rubber (5) have all been placed in sealing strip mounting groove and the closed notch (6), the inboard periphery of left door leaf (2) and right door leaf (8) all is provided with knife type embedded strip (21) that are used for compressing sealing rubber (5), the left door leaf (2) closed surface of right door leaf (8) is vertical to be provided with the recess, has placed door leaf closed rubber (23) in the recess, the right door leaf (8) closed surface of left door leaf (2) is vertical to be provided with knife type closed strip (22) that are used for compressing door leaf closed rubber (23).

2. The side-by-side combination grain bin air-tight door of claim 1, wherein: the interlayer of the left door leaf (2) and the right door leaf (8) is filled with a foaming heat-insulation airtight layer (24).

3. The side-by-side combination grain bin air-tight door of claim 1, wherein: the opening and closing device is a worm and gear combined connecting rod type opening and closing device, the opening and closing device comprises an upper push rod (11), a worm and gear box assembly (12) and a lower push rod (20), wherein the worm and gear box assembly (12) is respectively arranged on the inner sides of a left door leaf (2) and a right door leaf (8), an input shaft of the worm and gear box assembly (12) stretches out of the door leaf and is connected with a rotating disc (3), a sealing ring is arranged between the input shaft and the door leaf, an output shaft of the worm and gear box assembly (12) is provided with a screw rod (14), the screw rod (14) is supported by a bearing seat (13) arranged on the door leaf, a screw rod nut (16) is arranged on the screw rod (14), two sides of the screw rod nut (16) are respectively hinged with a hinge arm (15), one end of the hinge arm (15) is hinged with the screw rod nut (16), the other end of the hinge arm (15) is respectively hinged with the bottom end of the upper push rod (11) and the top end of the lower push rod (20), the top end of the upper push rod (11) is hinged with an upper lock post (10) vertically slidably arranged in an upper guide seat (9), the bottom end of the lower push rod (20) is hinged with the lower guide post (18) fixedly arranged on the upper guide post (18) and the lower guide post (18) which are fixedly hinged on the upper guide post and the lower guide post (18) respectively, the door frame body (1) is provided with a lock hole (7) for inserting the upper lock column (10) and the lower lock column (17).

4. The side-by-side combination grain bin air-tight door of claim 1, wherein: the lower part of the door frame body (1) is sealed with a waterproof coiled material under the floor of the grain storage bin by sealing glue.