Grain bin window structure

Abstract

The utility model provides a kind of granary window structure, including outer frame assembly, inner frame assembly and insect-proof and bird-proof window, the wall body of granary is fixedly connected with the outer frame assembly, the outer frame assembly has second limit step, the second limit step is the demarcation of the upper portion and lower portion of the outer frame assembly, the upper portion of the outer frame assembly is connected with the inner frame assembly, the lower portion of the outer frame assembly is connected with the insect-proof and bird-proof window, and the insect-proof and bird-proof window is located inside the outer frame assembly.The utility model sets up in outer frame with insect-proof and bird-proof window, sets up limit mechanism and multiple sealing mechanism between outer frame and inner frame, sets up the connecting hinge with the effect of avoiding, makes overall structure compact, saves space and enhances sealing performance;Utilize corner to improve the connection strength of window frame, reduce processing difficulty, and further enhance sealing performance.

Description

Technical Field

[0001] This utility model relates to the structure of a three-proof window for grain depots. Background Technology

[0002] Grain depot windows should typically be dustproof, insectproof, and birdproof, including at least a dustproof window, an insectproof window, and a birdproof window, usually arranged sequentially from the inside out. The innermost dustproof window must be airtight, and airtightness must also be ensured between it and the insectproof and birdproof windows, as well as between the two. This is a design challenge for three-proof windows. Furthermore, the common window frame design features right-angle edges, and the sealing and connection strength at the corners of the frame present another design challenge.

[0003] Chinese utility model patent CN208518552U discloses a three-proof airtight window for grain storage, which includes a window frame, an external main window, and internal bird-proof, insect-proof, and dust-proof windows. It uses four layers of windows to achieve the three-proof effect, which is complex in structure and wastes space. Chinese utility model patent CN206397376U discloses a heat-insulating and sealing window for grain storage, which uses a special-shaped sealing strip to achieve sealing. However, its corners still use a simple 45-degree beveled connection, and the sealing performance and connection stability at the corners cannot be guaranteed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a grain depot window structure to overcome the defects of the prior art, such as complex structure, poor sealing performance and connection stability, and large space occupation.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a grain storage window structure, including an outer frame assembly, an inner frame assembly, and an insect-proof and bird-proof window. The outer frame assembly is fixedly connected to the wall of the grain storage. The outer frame assembly has a second limiting step, which is the boundary between the upper and lower parts of the outer frame assembly. The upper part of the outer frame assembly is connected to the inner frame assembly, and the lower part of the outer frame assembly is connected to the insect-proof and bird-proof window. The insect-proof and bird-proof window is located inside the outer frame assembly.

[0006] Furthermore, the upper part of the outer frame assembly has a first contact surface, the inner frame assembly has a second contact surface that mates with the first contact surface, and a first sealing ring is provided between the first contact surface and the second contact surface.

[0007] Furthermore, the upper part of the outer frame assembly is rotatably connected to the inner frame assembly, and both the first contact surface and the second contact surface are inclined outward.

[0008] Furthermore, in the open state, the inner frame assembly and the outer frame assembly are parallel to each other, and the first contact surface and / or the second contact surface are perpendicular to the plane where the grain depot window is located.

[0009] Furthermore, the inner frame assembly has a first limiting protrusion, and there is a first gap between the first contact surface and the second contact surface. In the closed state, the first limiting protrusion covers the first gap.

[0010] Furthermore, the insect-proof and bird-proof window is rotatably connected to the lower part of the outer frame assembly via a hinge, and the highest point of the rotating part of the hinge is flush with or lower than the second limiting step.

[0011] Furthermore, the insect-proof and bird-proof window includes a bird-proof window and an insect-proof window, and the insect-proof window and the bird-proof window are detachably connected.

[0012] Furthermore, there is a second gap between the insect-proof and bird-proof window and the outer frame assembly, and the bottom of the outer frame assembly has a second limiting protrusion. When closed, the second limiting protrusion covers the second gap.

[0013] Furthermore, a second sealing ring is provided between the insect-proof and bird-proof window and the outer frame assembly.

[0014] Furthermore, the thickness of the outer frame assembly is greater than or equal to the sum of the thickness of the inner frame assembly and the thickness of the insect-proof and bird-proof window.

[0015] Compared with the prior art, the advantages of this utility model are that the inner window and the insect-proof and bird-proof window are both set inside the outer frame, a limiting mechanism and a multiple sealing mechanism are set between the outer frame and the inner frame, and a connecting hinge with a clearance effect is set, making the overall structure compact, saving space and enhancing the sealing performance; the corner is used to improve the connection strength of the window frame, reduce the processing difficulty, and further enhance the sealing performance. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the grain depot window in an open state, according to one embodiment of the present invention.

[0017] Figure 2 This is a front view of the grain depot window in an embodiment of the present invention in its open state;

[0018] Figure 3 This is a top view of the closed state in one embodiment of the grain depot window of this utility model;

[0019] Figure 4 for Figure 3 A sectional view along A-A';

[0020] Figure 5for Figure 4 Enlarged view of part B;

[0021] Figure 6 for Figure 3 A cross-sectional view along C-C';

[0022] Figure 7 for Figure 6 Enlarged view of part D;

[0023] Figure 8 This is a schematic diagram showing the positional relationship and structure of the outer frame corner and the inner frame corner of the grain depot window of this utility model.

[0024] Figure 9 This is an exploded structural diagram of the outer frame assembly of this utility model;

[0025] Figure 10 This is an exploded structural diagram of the inner frame component of this utility model;

[0026] Figure 11 This is a schematic diagram showing the positional relationship and structure of the outer frame assembly and the insect-proof and bird-proof window according to another embodiment of this utility model;

[0027] Figure 12 for Figure 11 Enlarged view of part E.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100 - Outer frame assembly, 101 - First connector, 102 - First gap, 103 - Second gap, 110 - Outer frame corner, 111 - First corner contact surface, 112 - Second corner limiting step, 113 - First corner limiting surface, 114 - Second corner limiting protrusion, 116 - First outer corner connecting hole, 117 - Second outer corner connecting hole, 120 - Outer frame straight edge, 121 - First straight edge contact surface, 122 - Second straight limiting step, 123 - First straight limiting surface, 124 - Second straight limiting protrusion, 125 - Clearance notch, 126 - First outer straight edge connecting hole, 127 - Second outer straight edge connecting hole;

[0030] 200-Inner frame assembly, 201-Connecting bolt, 203-Switch handle, 210-Inner frame corner, 211-Second corner contact surface, 212-Second corner limiting surface, 213-First corner limiting protrusion, 214-First positioning groove, 215-Inner corner connecting hole, 220-Inner frame straight edge, 221-Second straight edge contact surface, 222-Second straight limiting surface, 223-First straight limiting protrusion, 224-Second positioning groove, 225-Inner straight edge connecting hole, 230-Window panel;

[0031] 300-Insect and bird-proof window, 310-Insect-proof window, 311-Insect-proof net, 320-Bird-proof window, 321-Bird-proof net; 400-First sealing ring; 500-Second sealing ring; 610-Fixing component, 620-Rotating switch, 621-Pulley, 622-Rotating shaft, 623-Baffle; 700-Hinge, 710-First arm, 720-Second arm. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0033] Reference Figure 1-12 The grain depot window of this utility model includes an outer frame assembly 100 and an inner frame assembly 200 connected to each other. The outer frame assembly 100 is fixedly connected to the wall of the grain depot, and the inner frame assembly 200 can be opened relative to the outer frame assembly 100. Figure 1 and Figure 2 As shown, in one embodiment, the inner frame assembly 200 is rotatably connected to the outer frame assembly 100; in another embodiment, the inner frame assembly 200 is non-rotatably connected to the outer frame assembly 100, for example, by pushing, pulling and translating.

[0034] The outer frame assembly 100 includes straight outer frame edges 120 and outer frame corners 110. The four straight outer frame edges 120 and four outer frame corners 110 are connected end-to-end to form a closed outer frame. In one embodiment, the outer side wall of the straight outer frame edge 120 is fixedly mounted to a wall via a first connector 101, such as... Figure 5 or Figure 7 As shown. The inner frame assembly 200 includes inner frame straight edges 220 and inner frame corners 210. The four inner frame straight edges 220 and the four inner frame corners 210 are connected end to end to form a closed inner frame. The inner frame assembly 200 and the window panel 230 installed on the inner frame constitute an inner window.

[0035] The outer frame assembly 100 and the inner frame assembly 200 are sealed together by a first sealing ring 400. In one embodiment, the inner frame assembly 200 has a positioning portion for mounting the first sealing ring 400. In one embodiment, such as Figure 10As shown, the positioning part includes a first positioning groove 214 located on the outer side of the inner frame corner 210 and a second positioning groove 224 located on the outer side of the inner frame straight edge 220. The four sets of first positioning grooves 214 and second positioning grooves 224 are connected sequentially to form an annular positioning groove that penetrates the inner frame assembly 200. In another embodiment, the annular positioning groove is provided on the outer frame assembly 100, that is, the first sealing ring 400 is installed on the outer frame assembly 100. In other embodiments, the positioning part can also be other structures that facilitate the positioning and installation of the first sealing ring 400, such as continuous or discontinuous protrusions or depressions. Correspondingly, the first sealing ring 400 can be a solid, hollow, or a general or special-shaped sealing ring with a notch that mates with a protrusion or a convex part that mates with a depression.

[0036] The outer frame assembly 100 and the inner frame assembly 200 have a limiting mechanism, including a first limiting mechanism and a second limiting mechanism.

[0037] The first limiting mechanism includes a first limiting protrusion and a first limiting surface. In one embodiment, the first limiting protrusion is located on the inner frame assembly 200, and the first limiting surface is located on the outer frame assembly 100. Specifically, the straight edge 220 of the inner frame has a first straight limiting protrusion 223, and the corner 210 of the inner frame has a first corner limiting protrusion 213. The first straight limiting protrusion 223 and the first corner limiting protrusion 213 constitute the first limiting protrusion, such as... Figure 5 , Figure 8 and Figure 10 As shown; the outer frame straight edge 120 has a first straight limiting surface 123, and the outer frame corner 110 has a first corner limiting surface 113. The first straight limiting surface 123 and the first corner limiting surface 113 constitute the first limiting surface, as shown. Figure 5 , Figure 8 and Figure 9 As shown, when the inner frame assembly 200 closes the window panel 230, the lower surface of the first limiting surface abuts against the first limiting protrusion, achieving the limiting function while increasing the contact area between the outer frame assembly 100 and the inner frame assembly 200. Furthermore, the first limiting protrusion shields the first gap 102 between the first contact surface and the second contact surface, further increasing the difficulty for impurities and air to enter the first gap 102, achieving good dustproof and sealing effects. In one embodiment, a closed sealing ring similar to the first sealing ring 400 can be further provided between the first limiting surface and the first limiting protrusion, which will not be described in detail here.

[0038] The second limiting mechanism includes a second limiting step and a second limiting surface. In one embodiment, the second limiting step is located on the outer frame assembly 100, and the second limiting surface is located on the inner frame assembly 200. Specifically, the straight edge 120 of the outer frame has a second straight limiting step 122, and the corner 110 of the outer frame has a second corner limiting step 112. The second straight limiting step 122 and the second corner limiting step 112 constitute the second limiting step, as shown below. Figure 5 , Figure 8 and Figure 9 As shown; the inner frame straight edge 220 has a second straight limiting surface 222, and the inner frame corner 210 has a second corner limiting surface 212. The second straight limiting surface 222 and the second corner limiting surface 212 constitute the second limiting surface, as shown. Figure 5 and Figure 10 As shown; when the inner window is closed, the second limiting surface is blocked by the second limiting step. In a preferred embodiment, the first limiting protrusion contacts the first limiting surface and the second limiting step contacts the second limiting surface. These two sets of contact surfaces and the aforementioned first gap 102 form a Z-shaped structure, further increasing the difficulty for impurities to enter, thereby achieving good dustproof and sealing effects; at the same time, it can disperse the pressure between the outer frame assembly 100 and the inner frame assembly 200, making the entire window frame uniformly stressed and extending the service life of each component.

[0039] like Figure 5-10As shown, the outer frame assembly 100 and the inner frame assembly 200 have mutually cooperating contact surfaces. The inner side of the straight edge 120 of the outer frame has a first straight edge contact surface 121, and the outer side of the straight edge 220 of the inner frame has a second straight edge contact surface 221 that cooperates with the first straight edge contact surface 121. Correspondingly, the inner sidewall of the corner 110 of the outer frame has a first corner contact surface 111, and the outer side of the corner 210 of the inner frame has a second corner contact surface 211 that cooperates with the first corner contact surface 111. In one embodiment, the positioning part is located between the first contact surface and the second contact surface. The first contact surface includes the first straight edge contact surface 121 and the first corner contact surface 111, and the second contact surface includes the second straight edge contact surface 221 and the second corner contact surface 211. In one embodiment, the inner frame assembly 200 is rotatably connected to the outer frame assembly 100. Both the first and second contact surfaces are inclined outwards, and they can have the same inclination angle or the first contact surface can have a larger inclination angle. The purpose is to ensure that the second contact surface is not blocked by the first contact surface when the inner frame assembly 200 is rotated open relative to the outer frame assembly 100. For example, both can be inclined planes or curved surfaces curving in the same direction. The outward inclination means that the first and second contact surfaces are inclined outwards in a direction away from the geometric center of the grain storage window (centrifugal) with the second limiting step as the reference plane. In another embodiment, the inner frame assembly 200 is connected to the outer frame assembly 100 in a non-rotational manner. For example, the inner frame assembly 200 is detached from the outer frame assembly 100 under external force and then translates. In the open state, the inner frame assembly 200 and the outer frame assembly 100 are parallel or approximately parallel to each other. Therefore, the first and second contact surfaces can not only be parallel to each other, but can also be perpendicular to the plane where the grain storage window is located, either individually or simultaneously.

[0040] like Figure 5 and Figure 7 As shown, the upper part of the outer frame assembly 100 is connected to the inner frame assembly 200, and the lower part of the outer frame assembly 100 is connected to the insect-proof and bird-proof window 300, which is installed inside the outer frame assembly 100. Specifically, taking the second limiting step as the dividing line, the portion of the outer frame assembly 100 above the second limiting step is the upper part, and the portion of the outer frame assembly 100 below the second limiting step is the lower part. In one embodiment, the lower part of the outer frame assembly 100 is rotatably connected to the insect-proof and bird-proof window 300, such as... Figure 7As shown, the insect-proof and bird-proof window 300 includes an insect-proof window 310 and a bird-proof window 320. The insect-proof window 310 includes an insect-proof net 311, and the bird-proof window 320 includes a bird-proof net 321. The insect-proof window 310 is fixedly installed on the bird-proof window 320, and the top surface of the insect-proof window 310 is flush with or lower than the second vertical limiting step 122. The bird-proof window 320 is rotatably connected to the lower part of the outer frame straight edge 120. In one embodiment, the bird-proof window 320 is rotatably connected to the lower part of the outer frame straight edge 120 via a hinge 700. To prevent the hinge 700 from protruding beyond the second vertical limiting step 122 and thus further save space, the lower part of the outer frame straight edge 120 has an avoidance notch 125, such as... Figure 7 and Figure 9 As shown, the rotating part of the hinge 700 is located within the clearance notch 125. The first arm 710 of the hinge 700 is fixedly connected to the lower part of the straight edge 120 of the outer frame, and the second arm 720 of the hinge 700 is fixedly connected to the bird-proof window 320. The rotating part of the hinge 700 rotates within the clearance notch 125. When the bird-proof window 320 is closed, the highest point of the rotating part of the hinge 700 is flush with or lower than the second straight limit step 122, so as to avoid interference with the inner frame assembly 200 (inner frame straight edge 220) above the second straight limit step 122.

[0041] When the sum of the thickness D2 of the inner frame assembly 200 and the thickness D3 of the insect-proof and bird-proof window 300 is less than or equal to the thickness D1 of the outer frame assembly 100, the grain storage window achieves a better compact structure. Those skilled in the art will understand that the thickness of the first limiting protrusion is negligible relative to the thickness D1 of the outer frame assembly 100. As long as the bottom surface of the inner frame assembly 200 contacts or is as close as possible to the top surface of the insect-proof and bird-proof window 300, a compact grain storage window structure can still be achieved even if the sum of D2 and D3 is slightly greater than D1.

[0042] In one embodiment, the inner frame assembly 200 is provided with a switch handle 203. After unlocking, pulling the switch handle 203 opens the inner frame assembly 200 inward inside the grain depot, and the window panel 230, insect-proof window 310, and bird-proof window 320 are arranged sequentially from the inside to the outside.

[0043] In one embodiment, such as Figure 11 and Figure 12As shown, the outer frame assembly 100 is rotatably connected to the insect-proof and bird-proof window via a hinge 700. The first arm 710 of the hinge 700 is fixedly connected to the lower part of the straight edge 120 of the outer frame, and the second arm 720 of the hinge 700 is fixedly connected to the bird-proof window 320. To facilitate the installation and removal of the insect-proof window 310, it is detachably connected to the bird-proof window 320. For example, this detachable connection can be achieved via a lever structure. Specifically, the lever structure includes a fixing member 610 mounted on the bird-proof window 320 and a rotary switch 620. The fixing member 610 has a hole, and the rotary switch 620 includes a lever 611, a rotating shaft 622, and a stop plate 623. When the user moves the lever 611, the rotary switch 620 rotates around the rotating shaft 622 within the hole. When the stop plate 623 rotates above the insect-proof window 310, it prevents the insect-proof window 310 from detaching from the bird-proof window 320. When it is necessary to remove the insect-proof window 310, the rotary switch 620 is reversed, for example, rotated 90 degrees. The stop plate 623 no longer blocks the insect-proof window 310, and the insect-proof window 310 can be removed. In some embodiments, multiple sets of symmetrical lever structures can be provided to enhance connection stability.

[0044] Because there is a second gap 103 between the insect-proof and bird-proof window 300 and the lower part of the outer frame assembly 100, a second sealing ring 500 is provided between the insect-proof and bird-proof window 300 and the lower part of the outer frame assembly 100 to further enhance the sealing effect. In one embodiment, the bottom of the straight edge 120 of the outer frame has a second straight limiting protrusion 124, and the bottom of the corner 110 of the outer frame has a second corner limiting protrusion 114. The second straight limiting protrusion 124 and the second corner limiting protrusion 114 constitute a second limiting protrusion. The bottom surface of the insect-proof and bird-proof window 300 contacts the second limiting protrusion, and the second limiting protrusion covers the second gap 103. The second sealing ring 500 is used to prevent insects from entering the inner window from the outside through the second gap 103. In one embodiment, the second limiting protrusion has a mounting groove for installing the second sealing ring 500. The second sealing ring 500 has a shape that matches the bottom of the mounting groove to better fix the second sealing ring 500. In another embodiment, the second sealing ring 500 can also be installed on the bottom surface of the insect-proof and bird-proof window 300, and the second sealing ring 500 will be opened when the insect-proof and bird-proof window 300 is opened.

[0045] like Figure 3 , Figure 8-10As shown, the two end faces of the outer frame corner 110 are at a 90-degree angle. The outer arc surface of the outer frame corner 110 has a recessed outer corner connecting hole. Correspondingly, the end face of the outer frame straight edge 120 has an outer straight edge connecting hole. In one embodiment, the outer corner connecting hole includes a first outer corner connecting hole 116 and a second outer corner connecting hole 117, and the outer straight edge connecting hole includes a first outer straight edge connecting hole 126 and a second outer straight edge connecting hole 127. The outer straight edge connecting hole and the outer corner connecting hole are fixedly connected by a second connector. In one embodiment, the second connector is a connecting bolt 201. Since the outer frame assembly 100 has an upper and lower part, providing two sets of outer corner connecting holes (upper and lower) can better achieve a stable connection between the outer frame corner 110 and the outer frame straight edge 120. Similarly, the two end faces of the inner frame corner 210 are at 90 degrees, and the second corner contact surface 211 has a recessed inner corner connecting hole 215. Correspondingly, the end face of the inner frame straight edge 220 has an inner straight edge connecting hole 225. The inner corner connecting hole 215 and the inner straight edge connecting hole 225 are also fixedly connected by a connecting bolt 201.

[0046] The two end faces of the outer frame corner 110 and the inner frame corner 210 are both at 90 degrees, which reduces the processing steps of the corresponding outer frame straight edge 120 and inner frame straight edge 220 and minimizes the complexity of the structure. If the two end faces of the outer frame corner 110 and the inner frame corner 210 are less than 90 degrees, corresponding matching compensation transition end faces need to be processed on the corresponding end faces of the outer frame straight edge 120 and the inner frame straight edge 220, which is not conducive to the installation of the connecting bolt 201. This is because when the two end faces are at 90 degrees, the installation direction of the connecting bolt 201 is consistent with the extension direction of the outer frame straight edge 120 and the inner frame straight edge 220. Therefore, 90 degrees is a better embodiment. Connecting the corresponding straight edges through the outer frame corner 110 and the inner frame corner 210 makes the stress on the entire window frame more uniform. Compared with the existing technology where two adjacent right-angled edges are connected by a 45-degree bevel, it is more stable and can achieve a better sealing effect.

Claims

1. A grain depot window structure, comprising an outer frame assembly, an inner frame assembly, and an insect-proof and bird-proof window, wherein the outer frame assembly is fixedly connected to the wall of the grain depot, characterized in that: The outer frame assembly has a second limiting step, which is the boundary between the upper and lower parts of the outer frame assembly. The upper part of the outer frame assembly is connected to the inner frame assembly, and the lower part of the outer frame assembly is connected to the insect-proof and bird-proof window, which is located inside the outer frame assembly.

2. The grain depot window structure according to claim 1, characterized in that: The upper part of the outer frame assembly has a first contact surface, and the inner frame assembly has a second contact surface that mates with the first contact surface. A first sealing ring is provided between the first contact surface and the second contact surface.

3. The grain depot window structure according to claim 2, characterized in that: The upper part of the outer frame assembly is rotatably connected to the inner frame assembly, and both the first contact surface and the second contact surface are inclined outward.

4. The grain depot window structure according to claim 2, characterized in that: When open, the inner frame assembly and the outer frame assembly are parallel to each other, and the first contact surface and / or the second contact surface are perpendicular to the plane where the grain depot window is located.

5. The grain depot window structure according to claim 2, characterized in that: The inner frame assembly has a first limiting protrusion, and there is a first gap between the first contact surface and the second contact surface. When closed, the first limiting protrusion covers the first gap.

6. The grain depot window structure according to any one of claims 1-5, characterized in that: The insect-proof and bird-proof window is rotatably connected to the lower part of the outer frame assembly via a hinge. The highest point of the rotating part of the hinge is either flush with or lower than the second limiting step.

7. The grain depot window structure according to any one of claims 1-5, characterized in that: The insect-proof and bird-proof window includes a bird-proof window and an insect-proof window, and the insect-proof window and the bird-proof window are detachably connected.

8. The grain depot window structure according to any one of claims 1-5, characterized in that: There is a second gap between the insect-proof and bird-proof window and the outer frame assembly. The bottom of the outer frame assembly has a second limiting protrusion. When closed, the second limiting protrusion covers the second gap.

9. The grain depot window structure according to claim 8, characterized in that: A second sealing ring is provided between the insect-proof and bird-proof window and the outer frame assembly.

10. The grain depot window structure according to claim 1, characterized in that: The thickness of the outer frame assembly is greater than or equal to the sum of the thickness of the inner frame assembly and the thickness of the insect-proof and bird-proof window.

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