Ventilation opening small window structure with rat-proof function

Abstract

The utility model belongs to the field of ventilation opening protection windows, and discloses a ventilation opening small window structure with a rat-proof function, which comprises an outer frame and an inner frame, the inner frame is slidably connected with the outer frame, the inner frame is connected with a protection grid, the inner frame is provided with an installation device, the installation device comprises a bidirectional threaded rod, the inner frame is provided with a limiting chute, and the bidirectional threaded rod is rotatably connected with the inner frame. The two ends of the bidirectional threaded rod are in threaded connection with limiting square rods correspondingly, the limiting square rods are in sliding connection with the limiting sliding grooves, the outer frame is provided with limiting holes, the bidirectional threaded rod is connected with a driven bevel gear, the inner frame is rotationally connected with a rotating rod, the rotating rod is connected with a driving bevel gear, the driving bevel gear is meshed with the driven bevel gear, and the rotating rod is connected with a screwing block. According to the technical scheme, when the protective grating needs to be replaced subsequently, only the screwing block needs to be rotated, the inner frame can be conveniently and rapidly disassembled from the outer frame, other tools are not needed, the structure is simple, operation is convenient, the protective effect is greatly improved, and practicability is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of ventilation hole protection windows, in particular to a ventilation hole small window structure with a rat-proof function. Background Art

[0002] In modern society, vent structures are used in many places, such as subway stations, offices, conference rooms, etc. At the vent exhaust, in order to prevent mice and other small animals from entering the ventilation duct, a small window structure similar to an anti-slip net is generally connected to the vent to prevent mice and other small animals from entering the ventilation duct;

[0003] Most of the protective nets currently used are shutters or steel grilles, which are directly fixed to the vents with bolts. Although this installation is stable, it is not convenient to replace the protective net. When the mesh is damaged by animals biting, it needs to be disassembled with tools. However, the ventilation ducts are generally located at high places. At this time, the staff needs to operate tools (electric drills, etc.) in a high-altitude state to complete the disassembly and assembly of the protective window, which requires heavy manual labor and inconvenient use. Utility Model Content

[0004] The utility model aims to provide a small window structure of a vent with a rodent-proof function to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above object, the utility model provides the following technical solutions:

[0006] A small ventilation window structure with a rat-proof function comprises an outer frame and an inner frame, the inner frame is slidably connected to the outer frame, the inner frame is connected to a protective grille, the inner frame is provided with a mounting device, the mounting device comprises a bidirectional threaded rod, the inner frame is provided with a limiting slide groove, the bidirectional threaded rod is rotatably connected to the inner frame, both ends of the bidirectional threaded rod are respectively threadedly connected to a limiting square rod, the limiting square rod is slidably connected to the limiting slide groove, the outer frame is provided with a limiting hole, the bidirectional threaded rod is connected to a driven bevel gear, the inner frame is rotatably connected to a rotating rod, the rotating rod is connected to an active bevel gear, the active bevel gear is meshed with the driven bevel gear, and the rotating rod is connected to a twisting block.

[0007] Preferably, the rotating rod is connected with a convex block, the twisting block is provided with a sliding groove, the convex block is slidably connected with the sliding groove, the longitudinal section of the twisting block is rectangular, the inner frame is connected with a positioning plate, and two positioning plates are provided.

[0008] Preferably, the protective grille is connected to a blade.

[0009] Preferably, the outer frame is connected with a positioning ring.

[0010] Preferably, the mounting device is provided in two groups.

[0011] Compared with the prior art, this technical solution produces the following beneficial effects:

[0012] (1) The technical solution divides the protective window into an inner frame and an outer frame. The outer frame is connected to the vent by bolts, and the inner frame is detachably connected to the outer frame by the cooperation of the limiting square rod and the limiting hole. When the protective grille needs to be replaced later, it only needs to turn the twist block, which is convenient for quickly disassembling and assembling the inner frame from the outer frame without the help of other tools. The structure is simple, the operation is convenient, and the practicality is greatly improved.

[0013] (2) The present technical solution provides a convex square block, which can limit the rotation of the twisting block through the positioning plate, so that the twisting block will not rotate easily when the inner frame is in use, thereby improving the connection stability between the inner frame and the outer frame; the blade is used to improve the protection performance of the protective grille to prevent small animals from climbing and biting, thereby improving the protection performance of the protective grille; the positioning ring can be used to position the inner frame, which is convenient for the inner frame to be quickly connected to the outer frame; and multiple sets of mounting devices are provided to further improve the connection stability between the inner frame and the outer frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a formal partial cross-sectional view of the utility model;

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 A side sectional view of the driven bevel gear provided by the utility model;

[0017] Figure 4 A top sectional view of the driven bevel gear provided by the utility model;

[0018] Figure 5 A front view of the twisting block provided by the utility model;

[0019] Figure 6 A front view of a convex block provided by the utility model;

[0020] Figure numerals: outer frame 1, inner frame 2, limiting slide groove 3, protective grille 4, blade 5, limiting hole 6, limiting square rod 7, bidirectional threaded rod 8, driven bevel gear 9, driving bevel gear 10, twisting block 11, sliding groove 12, convex square block 13, rotating rod 14, positioning plate 15, positioning ring 16. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples:

[0022] like Figures 1 to 6The shown ventilating window structure with rat-proof function comprises an outer frame 1 and an inner frame 2, the inner frame 2 is slidably connected to the outer frame 1, the inner frame 2 is connected to a protective grille 4, the inner frame 2 is provided with a mounting device, the mounting device comprises a bidirectional threaded rod 8, the inner frame 2 is provided with a limiting slide groove 3, the bidirectional threaded rod 8 is rotatably connected to the inner frame 2, the bidirectional threaded rod 8 is located on the inner side of the limiting slide groove 3, the two ends of the bidirectional threaded rod 8 are respectively threadedly connected to a limiting square rod 7, the limiting square rod 7 is slidably connected to the limiting slide groove 3, the limiting square rod 7 has a rectangular longitudinal section, the limiting square rod 7 can only move left and right along the limiting slide groove 3, and then the limiting square rod 7 can be rotationally limited by the limiting slide groove 3, the outer frame 1 is provided with a limiting hole 6, the limiting square rod 7 can be inserted into the limiting hole 6, the bidirectional threaded rod 8 is connected to a driven bevel gear 9, the inner frame 2 is rotatably connected to a rotating rod 14, the rotating rod 14 is connected to an active bevel gear 10, the active bevel gear 10 is meshed with the driven bevel gear 9, and the rotating rod 14 is connected to a twisting block 11.

[0023] The rotating rod 14 is connected to a convex block 13, and the twisting block 11 is provided with a sliding groove 12. The convex block 13 is slidably connected to the sliding groove 12. The convex block 13 can only slide along the sliding groove 12 but cannot rotate relative to the sliding groove 12. The longitudinal section of the twisting block 11 is rectangular, and the inner frame 2 is connected to a positioning plate 15. There are two positioning plates 15, and the twisting block 11 is located between the two positioning plates 15.

[0024] The protective grille 4 is connected to a blade 5 , the outer frame 1 is connected to a positioning ring 16 , and two groups of mounting devices are provided, which are respectively located at the upper side and the lower side of the inner frame 2 .

[0025] When in use, the rotating rod 14 is driven to rotate by rotating the twisting block 11, thereby driving the active bevel gear 10 to rotate, and then driving the driven bevel gear 9 and the two-way threaded rod 8 to rotate. Since the limiting slide groove 3 plays a rotation limiting role on the limiting square rod 7, as the two-way threaded rod 8 rotates, the two limiting square rods 7 move inward or outward along the two-way threaded rod 8 at the same time, so that the limiting solution is inserted into the limiting hole 6 to complete the buckling of the inner frame 2 and the outer frame 1 or release the limit; Figure 3 and Figure 4 As shown, the twisting block 11 can move downward relative to the convex slider. When the rotating rod 14 needs to be twisted, the twisting block 11 is slid upward so that the twisting block 11 is located above the positioning plate 15. The positioning plate 15 will not play a role in limiting the rotation of the twisting block 11. Since the convex slider can only move along the convex slide groove, rotating the twisting block 11 can make the convex slider and the rotating rod 14 rotate together with the twisting block 11. After the adjustment is completed, the twisting block 11 is slid downward relative to the convex slider so that the twisting block 11 slides between the two positioning plates 15. At this time, the positioning plate 15 can contact the side wall of the twisting block 11, thereby playing a role in limiting the rotation of the twisting block 11.

[0026] The specific implementation process is as follows:

[0027] When in use, the outer frame 1 is fixedly connected to the vent by bolts, and then the twisting block 11 is twisted to put the limiting square rod 7 into the limiting slide groove 3, and then the inner frame 2 is aligned with the outer frame 1 and then the inner frame 2 is slid into the outer frame 1. When the inner frame 2 hits the positioning ring 16, the inner frame 2 is stopped from being pushed in. At this time, the limiting square rod 7 is located on the side of the limiting hole 6, and then the twisting block 11 can be rotated to make the limiting square rod 7 inserted into the limiting hole 6 to complete the installation. After the adjustment is completed, the twisting block 11 is slid downward relative to the convex slider to make the twisting block 11 slide between the two positioning plates 15; the same operation can be performed during subsequent disassembly.

[0028] The technical solution divides the protective window into an inner frame 2 and an outer frame 1. The outer frame 1 is connected to the vent by bolts, and the inner frame 2 is detachably connected to the outer frame 1 by the cooperation of the limiting square rod 7 and the limiting hole 6. When the protective grille 4 needs to be replaced later, it is only necessary to rotate the twisting block 11, which is convenient for quickly disassembling and assembling the inner frame 2 from the outer frame 1 without the aid of other tools. The structure is simple, the operation is convenient, and the practicality is greatly improved. The sealing performance of the installation device is also improved by rotating the rod 14, which prevents small animals from biting the two-way threaded rod 8 and the like, and improves The use stability of the installation device; a convex square block 13 is provided, and the positioning plate 15 can limit the rotation of the twisting block 11, so that the twisting block 11 will not rotate easily when the inner frame 2 is in use, thereby improving the connection stability between the inner frame 2 and the outer frame 1; the blade 5 is used to improve the protection performance of the protective grille 4 to prevent small animals from climbing and biting, thereby improving the protection performance of the protective grille 4; the positioning ring 16 can be used to position the inner frame 2, so that the inner frame 2 can be quickly connected to the outer frame 1; setting up multiple sets of installation devices can further improve the connection stability between the inner frame 2 and the outer frame 1.

[0029] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A small ventilation window structure with a rodent-proof function, characterized in that: The invention comprises an outer frame (1) and an inner frame (2), wherein the inner frame (2) is slidably connected to the outer frame (1), the inner frame (2) is connected to a protective grille (4), the inner frame (2) is provided with a mounting device, the mounting device comprises a bidirectional threaded rod (8), the inner frame (2) is provided with a limiting slide groove (3), the bidirectional threaded rod (8) is rotatably connected to the inner frame (2), both ends of the bidirectional threaded rod (8) are respectively threadedly connected to a limiting square rod (7), the limiting square rod (7) is slidably connected to the limiting slide groove (3), the outer frame (1) is provided with a limiting hole (6), the bidirectional threaded rod (8) is connected to a driven bevel gear (9), the inner frame (2) is rotatably connected to a rotating rod (14), the rotating rod (14) is connected to an active bevel gear (10), the active bevel gear (10) is meshed with the driven bevel gear (9), and the rotating rod (14) is connected to a twisting block (11).

2. A small ventilation window structure with a rodent-proof function as claimed in claim 1, characterized in that: The rotating rod (14) is connected to a convex block (13), the twisting block (11) is provided with a sliding groove (12), the convex block (13) is slidably connected to the sliding groove (12), the longitudinal section of the twisting block (11) is rectangular, the inner frame (2) is connected to a positioning plate (15), and two positioning plates (15) are provided.

3. The small ventilation window structure with rodent-proof function as claimed in claim 1, characterized in that: The protective grille (4) is connected to a blade (5).

4. The small vent window structure with rodent-proof function as claimed in claim 1, characterized in that: The outer frame (1) is connected to a positioning ring (16).

5. The small ventilation window structure with rodent-proof function as claimed in claim 1, characterized in that: The mounting device is provided with two groups.

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