Hinge with locking function and access hole
By introducing hinge points and elastic parts with locking function into the hinge, combining the card structure and adaptive structure, the problem of the maintenance port being snapped when the air flow is blown is solved, and safety and aesthetics are improved, and saving The cost.
Patent Information
- Application Number
- CN202421115816.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-22
AI Technical Summary
During the maintenance process, the maintenance port in the suspended ceiling may be blown instantly and buckled when encountering strong airflow, resulting in problems such as injuring people or damaging the equipment.
A hinge with locking function is designed, including hinge points and elastic parts, which are automatically adjusted when the air flow is blown by the card structure and adapter structure, preventing the cover plate from being blown and snapped through the hinge four-bar mechanism and icon The nose hook lock achieves unobstructed flips and hidden gaps.
It effectively prevents the cover plate from being buckled by airflow, avoids unnecessary injuries and equipment damage, and saves material and labor costs, achieving beautiful results.
Smart Images
Figure CN222314358U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of inspection openings, and in particular relates to a hinge and an inspection opening with a locking function. Background Art
[0002] Air conditioning equipment, water supply pipes, electrical pipelines, etc. are usually installed in the ceiling. Some ceilings with integral surface materials are not easy to open, such as gypsum board ceilings. In this case, it is necessary to open an inspection port on the ceiling below the equipment that needs regular maintenance for maintenance personnel to conduct daily maintenance and inspection to ensure the normal operation of air conditioners, lamps and other equipment. During the maintenance process, the inspection port opened from the top to the bottom may be blown shut instantly if encountering strong airflow, which is likely to injure people and / or damage the equipment at the inspection port. Summary of the invention
[0003] The purpose of the utility model is to provide a hinge and an inspection port with a locking function to solve the technical problem in the above-mentioned background technology that a large airflow may cause the hinge to snap shut instantly, causing unnecessary injuries to people and / or damage to the inspection port equipment.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A hinge with a locking function comprises a first fixing frame, a second fixing frame, a first support arm and a second support arm; wherein the first fixing frame is stationary, one end of the first support arm and one end of the second support arm are both hinged to the first fixing frame, the other end of the first support arm and the other end of the second support arm are both hinged to the second fixing frame, and the hinge points are respectively the first hinge point and the second hinge point; further comprising a card with a locking function, the card being hinged to the second fixing frame, and the hinge position being the third hinge point; the second support arm is provided with a clamping groove or a protrusion, and the card is provided with an adapting structure for clamping the groove or the protrusion.
[0006] In the above hinge, the first fixed frame, the second fixed frame, the first support arm and the second support arm constitute a hinge four-bar mechanism, and the first fixed frame is a stationary frame.
[0007] The above-mentioned hinge with locking function also includes an elastic member, one end of which is fixed to a first fixed point on the second fixing frame, and the other end of which is fixed to a second fixed point on the card, and the distance between the second fixed point and the third hinge point is greater than zero.
[0008] In the above-mentioned hinge with locking function, the first hinge point, the second hinge point and the third hinge point are arranged from left to right, wherein the distance between the first hinge point and the second hinge point is S1, the distance between the second hinge point and the third hinge point is S2, and S2>S1.
[0009] In the above-mentioned hinge with locking function, the first hinge point and the second hinge point are both higher in height than the third hinge point and the first fixed point, and the first fixed point is higher in height than the third hinge point; and when the elastic member pulls the second fixed point to be on the same straight line as the first fixed point and the third hinge point, the inclination direction of the adapter structure is toward the convex point position of the second arm.
[0010] In the above-mentioned hinge with locking function, the second arm has an arc-shaped curved portion near the second hinge point, one side of the arc-shaped curved portion is concave and the other side is convex; one side of the concave arc-shaped curved portion can accommodate the part of the first arm near the first hinge point.
[0011] In the above-mentioned hinge with locking function, the card includes an adapting structure for engaging with the groove or the protrusion, and also includes a moving structure for resetting.
[0012] In the above-mentioned hinge with locking function, the adapting structure for engaging with the groove or the protrusion forms an angle greater than zero degree with the moving structure.
[0013] An inspection opening including the above-mentioned hinge with a locking function also includes a keel frame and a cover plate, wherein the keel frame is fixedly connected to the first fixing frame, and the cover plate is hinged to the second fixing frame.
[0014] The above-mentioned inspection opening also includes an elephant trunk hook lock, and the cover plate and the keel frame are detachably connected by the elephant trunk hook lock.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] The hinged four-bar mechanism can effectively flip the cover plate hingedly connected to the second fixing frame out of the inspection port without any obstruction. At the same time, the gap between the cover plate and the inspection port hole is small, more concealed, and has a good aesthetic effect. The card structure can effectively prevent the cover plate from being snapped closed by a large airflow, avoiding unnecessary injuries and / or damage to the inspection port equipment. The setting of the elastic member, as well as the position layout of the first fixed point, the second fixed point, the first hinge point, the second hinge point, and the third hinge point can ensure that the card can automatically adjust to a position that can support the protrusion or groove during the process of opening the cover plate. The hinge can be directly fixedly connected to the keel frame, and there is no need to purchase other accessories. The remaining materials of the ceiling panel and the ceiling keel can be used to make an inspection port that meets the requirements, saving material costs and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A structural schematic diagram of an implementation of a hinge with a locking function;
[0018] Figure 2 A structural diagram of the cover of the inspection opening with a hinge having a locking function in the open state;
[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle.
[0020] 1. First fixing frame; 2. Second fixing frame; 3. First support arm; 4. Second support arm; 5. First hinge point; 6. Second hinge point; 7. Card; 8. Third hinge point; 9. Protrusion; 10. Adaptive structure; 11. Elastic member; 12. First fixing point; 13. Second fixing point; 14. Concave side of arc-shaped bending part; 15. Moving structure; 16. Keel frame; 17. Cover plate; 18. Trunk hook lock. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] See also Figure 1 , Figure 3 The utility model provides a hinge with a locking function, comprising a first fixing frame 1, a second fixing frame 2, a first support arm 3 and a second support arm 4; wherein the first fixing frame 1 is stationary, one end of the first support arm 3 and one end of the second support arm 4 are both hinged to the first fixing frame 1, the other end of the first support arm 3 and the other end of the second support arm 4 are both hinged to the second fixing frame 2, and the hinge points are respectively a first hinge point 5 and a second hinge point 6; it also includes a card 7 with a locking function, the card 7 is hinged to the second fixing frame 2, and the hinge position is a third hinge point 8; the second support arm 4 is provided with a clamping groove or a convex point 9, and the card 7 is provided with an adapting structure 10 for clamping the groove or the convex point 9.
[0023] In some embodiments, an elastic member 11 is further included, one end of the elastic member 11 is fixed to a first fixed point 12 on the second fixing frame 2, and the other end of the elastic member 11 is fixed to a second fixed point 13 on the card 7, and the distance between the second fixed point 13 and the third hinge point 8 is greater than zero.
[0024] A preferred embodiment also includes that the first hinge point 5 and the second hinge point 6 are both higher in height than the third hinge point 8 and the first fixed point 12, and the first fixed point 12 is higher in height than the third hinge point 8; and when the elastic member 11 pulls the second fixed point 13 to be on the same straight line as the first fixed point 12 and the third hinge point 8, the inclination direction of the adaptation structure 10 is toward the position of the protrusion 9 of the second support arm 4.
[0025] See also Figure 3 Under the pulling force of the elastic member 11, due to the distance between the second fixed point 13 and the third hinge point 8, the card 7 can rotate around the third hinge point 8 toward the first fixed point 12, and then when the inspection port cover 17 is opened, the card 7 can return to its original position by itself under the action of the elastic force. When the airflow blows the cover 17, the adapter structure 10 of the card 7 can abut against the protrusion 9 to prevent the cover 17 from being snapped closed by being instantly blown by a large airflow, thereby avoiding unnecessary injuries and / or damage to the inspection port equipment.
[0026] In the hinge with locking function of the utility model, the first fixing frame 1, the second fixing frame 2, the first support arm 3 and the second support arm 4 constitute a hinge four-bar mechanism, and the first fixing frame 1 is a stationary frame. The hinge four-bar mechanism can effectively flip the cover plate 17 hingedly connected to the second fixing frame 2 out of the inspection port completely without obstruction. The arrangement of the card 7 structure can effectively prevent the cover plate 17 from being instantly blown by a large airflow and buckled, avoiding unnecessary injuries and / or damage to the inspection port equipment.
[0027] In some embodiments, the first hinge point 5, the second hinge point 6, and the third hinge point 8 are arranged in sequence from left to right, wherein the distance between the first hinge point 5 and the second hinge point 6 is S1, and the distance between the second hinge point 6 and the third hinge point 8 is S2, S2>S1; and the distance from the end of the card 7 to the third hinge point 8 is less than S2, so as to ensure that the card 7 can effectively return to its position under the pulling force of the elastic member 11.
[0028] Continue to refer to Figure 1 In some embodiments, the second arm 4 has an arc-shaped curved portion near the second hinge point 6, one side of the arc-shaped curved portion has a concave arc-shaped curved portion concave side 14, and the other side is convex; the arc-shaped curved portion concave side 14 can accommodate the first arm 3 near the first hinge point 5. The opening angle of the cover plate 17 is further guaranteed.
[0029] In some embodiments, the card 7 includes an adapting structure 10 for engaging with the groove or protrusion 9, and also includes a moving structure 15 for resetting.
[0030] In some embodiments, the adapting structure 10 for engaging the groove or the convex point 9 forms an angle greater than zero with the moving structure 15. Specifically, the line between the point where the adapting structure 10 abuts against the convex point 9 and the third hinge point 8 is the first line, and the line between any point of the moving part of the moving structure 15 and the third hinge point 8 is the second line, and the angle between the first line and the second line is greater than zero.
[0031] After the card 7 is snapped onto the protrusion 9 on the second arm 4, the cover 17 cannot be closed automatically even if it is subjected to strong wind force or other external force, thereby protecting the maintenance personnel from being pinched; when closing the cover 17, the moving structure 15 can be manually rotated to rotate the adapter structure 10 to a position above the protrusion 9 of the second arm 4, and the stuck state is released. When the cover 17 continues to be closed, the convex side of the arc-shaped curved portion of the second arm 4 resists the action of the adapter structure 10, driving the adapter structure 10 to tighten the elastic member 11, and the elastic member 11 can also play a good elastic role in returning to its original position when waiting to be opened.
[0032] See also Figure 2 The utility model also provides an inspection port including the above-mentioned hinge with a locking function, and the inspection port also includes a keel frame 16 and a cover plate 17. The keel frame 16 is fixedly connected to the first fixing frame 1, and the back plate or keel of the cover plate 17 is fixedly connected to the second fixing frame 2.
[0033] In some embodiments, the keel frame 16 is a secondary keel in the ceiling keel system, forming an enclosure structure to protect the inspection opening. If the surface material of the ceiling is a loose material such as gypsum board, corner guards can also be installed to protect the edge of the inspection opening from damage due to repeated opening and closing.
[0034] In some embodiments, in addition to the cuttable backboard, the cover plate 17 can also be installed with the secondary keel in the ceiling keel system as a supporting structure. Like the keel frame 16, it is also an enclosed structure, and its shape is consistent with the shape of the inspection opening. If the surface material of the ceiling is a loose material such as gypsum board, a corner guard can be installed to protect the edge of the inspection opening from damage due to repeated opening and closing. This type of inspection opening that is consistent with the ceiling material and ceiling keel is easier to make. During the construction of the ceiling, the excess scraps can meet the requirements of making the inspection opening, which is more in line with the requirements of uniformity and beauty, and is more cost-effective.
[0035] In some embodiments, the inspection opening further comprises an elephant trunk hook lock 18, and the cover plate 17 and the keel frame 16 are detachably connected by the elephant trunk hook lock 18. The elephant trunk hook lock 18 is fixedly connected to the keel frame 16.
[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A hinge with a locking function, characterized in that: The invention comprises a first fixing frame, a second fixing frame, a first support arm and a second support arm; wherein the first fixing frame is stationary, one end of the first support arm and one end of the second support arm are both hinged to the first fixing frame, the other end of the first support arm and the other end of the second support arm are both hinged to the second fixing frame, and the hinge points are respectively a first hinge point and a second hinge point; further comprising a card with a locking function, the card is hinged to the second fixing frame, and the hinge position is a third hinge point; the second support arm is provided with a clamping groove or a protrusion, and the card is provided with an adapting structure for clamping the groove or the protrusion.
2. The hinge with locking function according to claim 1, characterized in that: It also includes an elastic member, one end of which is fixed to a first fixed point on the second fixing frame, and the other end of which is fixed to a second fixed point on the card, and the distance between the second fixed point and the third hinge point is greater than zero.
3. The hinge with locking function according to claim 2, characterized in that: The first hinge point, the second hinge point, and the third hinge point are arranged from left to right, wherein the distance between the first hinge point and the second hinge point is S1, the distance between the second hinge point and the third hinge point is S2, S2>S1; and the distance from the end of the card to the third hinge point is less than S2, so as to ensure that the card can effectively return to its position under the pulling force of the elastic member.
4. The hinge with locking function according to claim 3, characterized in that: The first hinge point and the second hinge point are both higher in height than the third hinge point and the first fixed point, and the first fixed point is higher in height than the third hinge point; and when the elastic member pulls the second fixed point to be on the same straight line as the first fixed point and the third hinge point, the inclination direction of the adaptation structure is toward the convex point position of the second arm.
5. The hinge with locking function according to claim 4, characterized in that: The second arm has an arc-shaped curved portion near the second hinge point, one side of the arc-shaped curved portion is concave and the other side is convex; one side of the concave arc-shaped curved portion can accommodate the portion of the first arm near the first hinge point.
6. The hinge with locking function according to claim 5, characterized in that: The card comprises an adapting structure for engaging with the groove or the protrusion, and also comprises a moving structure for resetting.
7. The hinge with locking function according to claim 6, characterized in that: The adapting structure for engaging with the groove or the protrusion forms an angle greater than zero degree with the moving structure.
8. An inspection opening comprising a hinge with a locking function as claimed in any one of claims 1 to 7, characterized in that: It also includes a keel frame and a cover plate. The keel frame is fixedly connected to the first fixing frame, and the cover plate is hinged to the second fixing frame.
9. The inspection opening according to claim 8, characterized in that: It also includes an elephant trunk hook lock, and the cover plate and the keel frame are detachably connected by the elephant trunk hook lock.