Building ventilation opening protective mesh enclosure capable of preventing mosquitoes from invading

Abstract

The utility model relates to the technical field of protective mesh enclosures, in particular to a building ventilation opening protective mesh enclosure preventing mosquitoes from invading, which comprises an outer shell, an outer baffle is welded and fixed at one end of the outer shell, a first filter screen and a second filter screen are movably inserted in the outer shell in sequence, and a fixing seat is fixedly mounted on the inner side surface of the first filter screen. A main rod is fixedly installed on the outer surface of the fixing base, a sealing hole is formed in the second filter screen, the main rod is inserted into the sealing hole, the outer side of the main rod is sleeved with a spring, the spring is located between the first filter screen and the second filter screen, one end of the spring is fixedly connected with the fixing base, and the other end of the spring is fixedly connected with the second filter screen. The other end of the spring makes contact with the second filter screen, the end of the main rod is provided with a limiting mechanism used for the first filter screen and the second filter screen, and when the device is used, two times of filtering protection can be conducted on the ventilation opening.

Description

Technical Field

[0001] This utility model relates to the field of protective mesh cover technology, and in particular to a protective mesh cover for building ventilation openings to prevent mosquitoes and other insects from entering. Background Technology

[0002] Building ventilation vent protective netting is a protective device installed at building ventilation vents to protect them from external objects, debris, animals, etc., while ensuring normal airflow. It is typically made of materials such as metal mesh or plastic mesh, and features high strength, good protective effect, and strong ventilation permeability. Protective netting is widely used in residential, commercial, and industrial buildings, especially in ventilation systems, exhaust systems, and air conditioning systems.

[0003] In existing technologies, the insect-proof mechanism used in building ventilation openings is mostly a filter screen fixedly installed at the ventilation opening. Although it can provide some protection, after long-term use, the surface of the filter screen will be covered with various impurities, which will affect the ventilation and filtration effects. Therefore, we urgently need a protective mesh cover with easy-to-clean filter screen. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution: a protective mesh cover for building ventilation openings to prevent mosquito intrusion, comprising an outer shell, an outer baffle welded and fixed to one end of the outer shell, a first filter and a second filter sequentially movably inserted into the outer shell, a fixing seat fixedly installed on the inner surface of the first filter, a main rod fixedly installed on the outer surface of the fixing seat, a sealing hole opened inside the second filter, the main rod inserted into the sealing hole, a spring sleeved on the outer side of the main rod, the spring being located between the first filter and the second filter, one end of the spring being fixedly connected to the fixing seat, and the other end of the spring contacting the second filter, a limiting mechanism for the first filter and the second filter being provided at the end of the main rod, a baffle fixedly installed on the upper end of the front surface of the outer baffle, and the filter holes of the first filter being larger than the filter holes of the second filter.

[0005] As an improvement to the above technical solution, mounting blocks are fixedly installed on both sides of the outer baffle, and the mounting blocks have several mounting openings inside.

[0006] As an improvement to the above technical solution, a retaining ring is provided on the inner wall of the outer shell, and the retaining ring is integrally formed with the outer shell, and the outer frame of the first filter screen is in contact with the retaining ring.

[0007] As an improvement to the above technical solution, a sealing rubber ring is glued to the outer frame of both the first and second filter screens.

[0008] As an improvement to the above technical solution, the limiting mechanism includes several square insertion slots opened inside the rear side of the outer shell, and the square insertion slots are distributed around the four sides of the outer shell. A cross-shaped reinforcement is movably sleeved on the outer side of the main rod. The cross-shaped reinforcement contacts the outer side of the second filter screen. A square plug is provided at each of the four corners of the cross-shaped reinforcement, and the square plug is integrally formed with the cross-shaped reinforcement. The square plug is inserted into the inside of the square insertion slot.

[0009] As an improvement to the above technical solution, the limiting mechanism further includes a limiting nut screwed onto the outer surface of the main rod, and the limiting nut is located outside the cross reinforcement. The outer surface of the main rod is provided with a thread that matches the limiting nut, and the middle position of the cross reinforcement is provided with a through hole that matches the main rod.

[0010] The beneficial effects of this utility model are:

[0011] By sequentially installing a first filter and a second filter inside the outer casing, and setting a main rod and a spring between the first and second filters, and setting a limiting mechanism for the first and second filters at the end of the main rod, the device can provide double filtration protection for the ventilation opening during use, resulting in better protection. The limiting mechanism also allows for easy removal of the first and second filters, making cleaning or replacement more convenient and quick, thus increasing the overall ease of use. A baffle cover on the front surface of the outer baffle effectively protects the outside of the device from rain. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a side view of the present invention.

[0014] Figure 3 This is a structural diagram of the first and second filter screens in this utility model;

[0015] Figure 4 This is an exploded view of the first and second filter screens in this utility model;

[0016] Figure 5 This is a structural diagram of the outer shell of this utility model.

[0017] Reference numerals: 1. Outer shell; 11. Square insertion slot; 12. Retaining ring; 2. Outer baffle; 21. Mounting block; 22. Mounting port; 3. Grid cover; 4. First filter screen; 41. Sealing rubber ring; 5. Second filter screen; 51. Sealing hole; 6. Cross-shaped reinforcement; 61. Square insertion connector; 62. Through hole; 7. Main rod; 71. Thread; 72. Spring; 73. Fixing seat; 8. Limit nut. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0019] Please see Figure 1-5 This utility model provides a technical solution: a protective mesh cover for building ventilation openings to prevent mosquito intrusion, including an outer shell 1. An outer baffle 2 is welded and fixed to one end of the outer shell 1. A first filter 4 and a second filter 5 are sequentially movably inserted into the outer shell 1. A fixing seat 73 is fixedly installed on the inner surface of the first filter 4. A main rod 7 is fixedly installed on the outer surface of the fixing seat 73. A sealing hole 51 is opened inside the second filter 5. The main rod 7 is inserted into the sealing hole 51. A spring 72 is sleeved on the outer side of the main rod 7. The spring 72 is located between the first filter 4 and the second filter 5. One end of the spring 72 is fixedly connected to the fixing seat 73. The other end of the spring 72 is in contact with the second filter 5. A limiting mechanism for the first filter 4 and the second filter 5 is provided at the end of the main rod 7. A baffle 3 is fixedly installed on the upper end of the front surface of the outer baffle 2. The filter holes of the first filter 4 are larger than the filter holes of the second filter 5.

[0020] In this embodiment, a first filter screen 4 and a second filter screen 5 are sequentially and movably installed inside the outer casing 1. A main rod 7 and a spring 72 are arranged between the first filter screen 4 and the second filter screen 5. At the same time, a limiting mechanism for the first filter screen 4 and the second filter screen 5 is provided at the end of the main rod 7. When the device is in use, it can provide double filtration protection for the ventilation opening, which is more effective. At the same time, the limiting mechanism makes it easy to remove the first filter screen 4 and the second filter screen 5. When the first filter screen 4 and the second filter screen 5 need to be cleaned or replaced, it is also more convenient and quick, thereby increasing the convenience of the overall device in use. A baffle cover 3 is provided on the front surface of the outer baffle 2, which can effectively protect the outside of the overall device from rain.

[0021] Specifically, mounting blocks 21 are fixedly installed on both sides of the outer baffle 2, and the mounting blocks 21 have several mounting holes 22 inside. A retaining ring 12 is provided on the inner wall of the outer shell 1, and the retaining ring 12 is integrally formed with the outer shell 1. The outer frame of the first filter screen 4 is in contact with the retaining ring 12. The outer frames of the first filter screen 4 and the second filter screen 5 are both glued together with a layer of sealing rubber ring 41.

[0022] In this embodiment, by adhesively bonding a sealing rubber ring 41 to the outer sides of both the first filter 4 and the second filter 5, gaps are prevented from forming when the first filter 4 and the second filter 5 are installed inside the outer casing 1, thus preventing mosquitoes from entering and affecting the protective effect.

[0023] Specifically, the limiting mechanism includes several square insertion slots 11 opened inside the rear side of the outer shell 1, and the square insertion slots 11 are distributed around the four sides of the outer shell 1. A cross-shaped reinforcement 6 is movably sleeved on the outer side of the main rod 7. The cross-shaped reinforcement 6 contacts the outer side of the second filter screen 5. A square plug 61 is provided at each of the four corners of the cross-shaped reinforcement 6, and the square plug 61 is integrally formed with the cross-shaped reinforcement 6. The square plug 61 is inserted into the inside of the square insertion slot 11. The limiting mechanism also includes a limiting nut 8 screwed onto the outer surface of the main rod 7, and the limiting nut 8 is located outside the cross-shaped reinforcement 6. The outer surface of the main rod 7 is provided with a thread 71 that matches the limiting nut 8, and the middle position of the cross-shaped reinforcement 6 is provided with a through hole 62 that matches the main rod 7.

[0024] In this embodiment, by setting a limiting mechanism for the first filter screen 4 and the second filter screen 5 at the end of the main rod 7, when the first filter screen 4 and the second filter screen 5 are installed inside the outer shell 1 under the action of the limiting mechanism, the second filter screen 5 is first inserted into the main rod 7 through the sealing hole 51, and the second filter screen 5 contacts one end of the spring 72, so that the spring 72 is in a compressed state. Then the first filter screen 4, the second filter screen 5, and the main rod 7 are placed inside the outer shell 1. At this time, the first filter screen 4 contacts the retaining ring 12 set in the inner wall of the outer shell 1. Then the cross reinforcement 6 is sleeved on the end of the main rod 7, and the square plug 61 is inserted into the square plug slot 11. Finally, the installation is completed by using the limiting nut 8 for reinforcement. The whole process is convenient and quick, and it is easy to install and remove the first filter screen 4 and the second filter screen 5, thereby increasing the convenience of use.

[0025] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A protective screen for a building vent to prevent the ingress of insects, comprising an outer housing (1), characterised in that: One end of the outer shell (1) is welded and fixed with an outer baffle (2), the outer shell (1) is sequentially and movably inserted with a first filter screen (4) and a second filter screen (5), and the inner side surface of the first filter screen (4) is fixedly installed with a fixed seat (73), the outer surface of the fixed seat (73) is fixedly installed with a main rod (7), the inside of the second filter screen (5) is provided with a sealing hole (51), the main rod (7) is inserted into the sealing hole (51), the outer side of the main rod (7) is sleeved with a spring (72), the spring (72) is located between the first filter screen (4) and the second filter screen (5), one end of the spring (72) is fixedly connected with the fixed seat (73), the other end of the spring (72) is in contact with the second filter screen (5), the end of the main rod (7) is provided with a limiting mechanism for the first filter screen (4) and the second filter screen (5), the front surface of the outer baffle (2) is fixedly installed with a baffle cover (3), and the filter hole of the first filter screen (4) is larger than that of the second filter screen (5).

2. A protective screen for a building vent to prevent insect intrusion according to claim 1, characterised in that: The two sides of the outer baffle (2) are fixedly installed with mounting blocks (21), and a plurality of mounting holes (22) are formed in the inside of the mounting blocks (21).

3. A protective screen for architectural ventilation openings against insect intrusion according to claim 1, characterized in that: The inner wall of the outer shell (1) is provided with a check ring (12), the check ring (12) is integrally formed with the outer shell (1), and the outer frame of the first filter screen (4) is in contact with the check ring (12).

4. A protective screen for architectural ventilation openings against insect intrusion according to claim 1, characterized in that: The outer frames of the first filter screen (4) and the second filter screen (5) are both glued and connected with a layer of sealing rubber ring (41).

5. A protective screen for architectural ventilation openings against insect intrusion according to claim 1, characterized in that: The limiting mechanism comprises a plurality of square insertion grooves (11) formed in the inside of the rear side of the outer shell (1), and the square insertion grooves (11) are distributed around the frame of the outer shell (1), the outer side of the main rod (7) is movably sleeved with a cross reinforcing member (6), the cross reinforcing member (6) is in contact with the outer side of the second filter screen (5), the four corners of the cross reinforcing member (6) are provided with square insertion heads (61), the square insertion heads (61) are integrally formed with the cross reinforcing member (6), and the square insertion heads (61) are inserted into the square insertion grooves (11).

6. A protective screen for architectural ventilation openings against insect intrusion according to claim 1, characterized in that: The limiting mechanism further comprises a limiting nut (8) which is screw-mounted on the outer surface of the main rod (7), and the limiting nut (8) is located on the outer side of the cross reinforcing member (6), the outer surface of the main rod (7) is provided with a thread (71) which is matched with the limiting nut (8), and the inside of the middle position of the cross reinforcing member (6) is provided with a through hole (62) which is matched with the main rod (7).

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