Protective air-tight door hinge fastening device

Abstract

The utility model relates to the field of hinge fastening devices of protective air-tight doors, in particular to a hinge fastening device of a protective air-tight door. The telescopic clamping block locking system is composed of a worm and gear transmission mechanism, a gear transmission mechanism, a threaded shaft and threaded sleeve transmission mechanism and the like. Compared with the prior art, the device has the advantages that the device is additionally provided with a reinforcing mechanism capable of fastening and locking the telescopic clamping block inside the door plate or the door frame in the direction parallel to the connecting surface besides the traditional mode that the hinge is fixed by a bolt, so that the fragile surface which is tightly locked by threads originally is multiplied, and the service life of the door plate or the door frame is prolonged. The clamping blocks are further provided with rubber blocks and concave table tops for auxiliary reinforcement, the attachment and friction degree between the clamping blocks and the inner wall of the protective door installation groove is increased, and due to the fact that the clamping blocks of the device are parallel to the installation faces to conduct telescopic clamping, even if transmission mechanisms such as gears and threads in the device are slightly damaged, the fastening effect of the device is not affected.

Description

Technical Field

[0001] The utility model relates to the field of hinge fastening devices for protective closed doors, in particular to a hinge fastening device for protective closed doors. Background Art

[0002] A hinge, also known as a hinge, is a component connected between a door panel and a door frame to enable the door panel to rotate on the door frame and the wall. It is usually made of metal and fixed to the door panel or door frame by bolts or screws.

[0003] When the protective door is in use, it is often opened or closed. Every time it is opened or closed, a certain degree of tension will always be generated between the hinge and the protective door. When it is fixed by a threaded structure, a thin and small convex surface at the thread is used for locking, which is very fragile. After a long time, many protective doors may become loose or even damaged at the bolt connection, which is not conducive to the normal use of the protective door. Therefore, a hinge fastening device for protective closed doors is needed. Utility Model Content

[0004] 1. Technical Problems Solved

[0005] The technical problem to be solved by the utility model is that the hinge is fastened by bolts when being installed and fixed on the protective door, which is easy to become loose or damaged after long-term use.

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: a protective and airtight door hinge fastening device, comprising a fixed plate, a connecting end is connected to one side of the fixed plate, the connecting end is rotatably connected to a hinge shaft away from one end of the fixed plate, and a plurality of through holes are connected to the fixed plate.

[0008] A base is connected below the fixed plate, an adjustment cavity is connected at the center of the base, the base is located in the adjustment cavity and is connected to a transmission shaft for longitudinal rotation, the base is located in the adjustment cavity and is connected to a support shaft for transverse rotation, a worm gear transmission mechanism is commonly connected between the transmission shaft and the support shaft, and transmission gears are connected to both ends of the support shaft.

[0009] The base is provided with a plurality of threaded shafts rotatably connected at both ends of the support shaft, a driven gear matching the transmission gear is commonly connected between one end of the threaded shaft and the support shaft, a plurality of telescopic cavities are connected at both ends of the base, the threaded shaft extends away from one end of the support shaft and is connected to a clamping block in the telescopic cavity, a threaded sleeve matching the threaded shaft is connected to the side of the clamping block close to the support shaft, sliders are connected to both sides of the threaded sleeve, and the base is located in the telescopic cavity and is connected with a plurality of limiting slide rails matching the sliders.

[0010] Furthermore, a plurality of connection ears matching with the through holes are connected at both ends of the fixing plate to serve as connection parts fixed by bolts.

[0011] Furthermore, the top end of the transmission shaft extends to the top of the fixing plate and is connected with a cross groove, which is used to drive the transmission shaft to rotate in the base through a corresponding tool.

[0012] Furthermore, a rubber block is connected to one end of the block away from the support shaft. The rubber block has a certain degree of compression and expansion effect, which can fill the gap between the end of the device fixing mechanism and the door panel fixing groove and protect the above two.

[0013] Furthermore, the top of the block is connected with a concave-convex surface, and when the block contacts the inner wall of the door panel, the mutual friction at the contact surface can be increased, thereby achieving an auxiliary reinforcement effect.

[0014] 3. Beneficial Effects

[0015] The advantages of the utility model compared with the prior art are: in addition to the traditional bolt fixing method for the hinge, the device focuses on adding a reinforcement mechanism that can extend and retract the card block inside the door panel or door frame to tighten and lock in the direction parallel to the connecting surface, so that the fragile surface that was originally tightly locked by the thread is multiplied, and the card block is also provided with a rubber block and a concave table for auxiliary reinforcement, which increases the degree of fit and friction with the inner wall of the protective door installation groove. Since the card block of the device is extended and clamped parallel to the installation surface, even if the transmission mechanism such as the gears and threads inside the device is slightly damaged, it will not affect the tightening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the appearance and structure of a hinge fastening device for a protective closed door of the utility model. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the internal structure of a hinge fastening device for a protective closed door of the utility model. Figure 1 .

[0018] Figure 3 This is a schematic diagram of the internal structure of a hinge fastening device for a protective closed door of the utility model. Figure 2 .

[0019] Figure 4 It is a schematic diagram of the structure of part A.

[0020] As shown in the figure: 1. Fixed plate, 2. Connecting end, 3. Articulated shaft, 4. Connecting ear, 5. Through hole, 6. Base, 7. Transmission shaft, 8. Cross groove, 9. Worm gear transmission mechanism, 10. Support shaft, 11. Transmission gear, 12. Threaded shaft, 13. Driven gear, 14. Threaded sleeve, 15. Block, 16. Slider, 17. Limiting slide rail, 18. Rubber block, 19. Concave table, 20. Telescopic cavity, 21. Adjustment cavity. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] Embodiment 1

[0023] Combined with Figure 1 In order to solve the above technical problems, the technical solution provided by the utility model is: a protective and airtight door hinge fastening device, including a fixing plate 1, a connecting end 2 is connected to one side of the fixing plate 1, and a hinge shaft 3 is rotatably connected to the end of the connecting end 2 away from the fixing plate 1, and a plurality of through holes 5 are connected to the fixing plate 1, and a plurality of connecting ears 4 matching the through holes 5 are connected to both ends of the fixing plate 1 as the connecting parts fixed with bolts.

[0024] The fixing plate 1 and the hinges equipped with the device are fixed on the door panel or door frame by using bolts to pass through the through holes 5 and extend into the corresponding fixing holes of the door panel.

[0025] Embodiment 2

[0026] Combined with Figure 2-3 A base 6 is connected below the fixed plate 1, and an adjusting cavity 21 is connected at the center of the base 6. The base 6 is located in the adjusting cavity 21 and is connected to a transmission shaft 7 for longitudinal rotation. The top of the transmission shaft 7 extends to the top of the fixed plate 1 and is connected to a cross groove 8 for driving the transmission shaft 7 to rotate in the base 6 through corresponding tools. The base 6 is located in the adjusting cavity 21 and is connected to a support shaft 10 for transverse rotation. A worm gear transmission mechanism 9 is commonly connected between the transmission shaft 7 and the support shaft 10, and transmission gears 11 are connected to both ends of the support shaft 10.

[0027] When the transmission shaft 7 rotates in the base 6, the support shaft 10 also rotates in the corresponding direction given by the transmission under the transmission action of the worm gear transmission mechanism 9 between the support shaft 10, and drives the threaded shaft 12 to rotate accordingly under the transmission action of the gear transmission group composed of the transmission gear 11 and the driven gear 13 at both ends.

[0028] Embodiment 3

[0029] Combined with Figure 1-4The base 6 is provided with a plurality of threaded shafts 12 rotatably connected at both ends of the support shaft 10, and a driven gear 13 cooperating with the transmission gear 11 is commonly connected between one end of the threaded shaft 12 and the support shaft 10, and a plurality of telescopic chambers 20 are connected at both ends of the base 6, and the threaded shaft 12 extends away from one end of the support shaft 10 to the telescopic chamber 20 and is connected with a card block 15, and the top of the card block 15 is connected with a concave and convex surface, and when the card block 15 contacts the inner wall of the door panel, the mutual friction at the contact surface can be increased, which plays an auxiliary role in In order to achieve a solid effect, a rubber block 18 is connected to the end of the block 15 away from the support shaft 10. The rubber block 18 has a certain degree of compression and expansion effect, which can fill the gap between the end of the fixing mechanism of the device and the fixing groove of the door panel and protect the above two. The block 15 is connected to a threaded sleeve 14 that cooperates with the threaded shaft 12 on the side close to the support shaft 10, and sliders 16 are connected on both sides of the threaded sleeve 14. The base 6 is located in the telescopic cavity 20 and is connected with a plurality of limiting slide rails 17 that cooperate with the sliders 16.

[0030] By rotating the threaded shaft 12 and cooperating with the threaded sleeve 14, and under the limiting action of the slider 16 and the limiting slide rail 17, the threaded sleeve 14 and the clamping block 15 are telescopically moved in the adjusting cavity 21 of the base 6. When the clamping block 15 partially extends out of the base 6 and contacts with the corresponding position of the fixed groove in the door panel, the transition clamping and mutual locking and fixing are realized.

[0031] In the specific implementation of the utility model, when the fastening device is used to assist in the installation of the hinge, matching holes and slots are first set at the corresponding positions on the door panel and the door slot to be installed. The design can be processed during the unified production by the manufacturer. When installing the hinge with the fastening device, the hinge is provided with the device at the leaf plates on both sides of the hinge shaft 3, which are respectively used for the connection and installation of the door panel and the door frame. The corresponding parts of the base 6 are inserted into the installation fixing groove on the door panel. After the position is calibrated, a corresponding tool, such as a cross-end screwdriver, is inserted into the cross slot 8 on the fixing plate 1 for rotation. Under this operation, the transmission shaft 7 is obtained. The threaded sleeve 14 in the telescopic cavity 20 of the base 6 drives the block 15 at one end to move toward the outside of the base 6 under the action of the sliders 16 and the limit slide rails 17 on both sides thereof, and moves the block 15 part out of the telescopic cavity 20 to contact the door panel groove body, which is located between the front and rear surfaces of the door panel. The block 15 moves to the bottom and the screwdriver for rotating the cross slot 8 can no longer rotate. Finally, use bolts to pass through the through holes 5 on the fixing plate 1 to tighten it again. The installation of the door frame part is the same as the above operation.

[0032] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A hinge fastening device for a protective closed door, comprising a fixing plate (1), a connecting end (2) connected to one side of the fixing plate (1), a hinge shaft (3) rotatably connected to one end of the connecting end (2) away from the fixing plate (1), a plurality of through holes (5) connected to the fixing plate (1), characterized in that: A base (6) is connected to the lower part of the fixing plate (1), an adjusting cavity (21) is connected to the center of the base (6), the base (6) is located in the adjusting cavity (21) and is connected to a transmission shaft (7) for longitudinal rotation, the base (6) is located in the adjusting cavity (21) and is connected to a support shaft (10) for transverse rotation, a worm gear transmission mechanism (9) is connected between the transmission shaft (7) and the support shaft (10), and transmission gears (11) are connected to both ends of the support shaft (10); A plurality of threaded shafts (12) are rotatably connected at both ends of the support shaft (10) in the base (6); a driven gear (13) matching with the transmission gear (11) is commonly connected between one end of the threaded shaft (12) and the support shaft (10); a plurality of telescopic chambers (20) are connected at both ends of the base (6); a clamping block (15) is connected to the telescopic chamber (20) at one end of the threaded shaft (12) extending away from the support shaft (10); a threaded sleeve (14) matching with the threaded shaft (12) is connected to the side of the clamping block (15) close to the support shaft (10); sliders (16) are connected to both sides of the threaded sleeve (14); and a plurality of limiting slide rails (17) matching with the sliders (16) are connected to the base (6) located in the telescopic chamber (20).

2. A hinge fastening device for a protective airtight door according to claim 1, characterized in that: The two ends of the fixing plate (1) are connected with a plurality of connecting ears (4) which match the through holes (5).

3. A hinge fastening device for a protective airtight door according to claim 1, characterized in that: The top end of the transmission shaft (7) extends to the top of the fixing plate (1) and is connected to a cross groove (8).

4. The hinge fastening device for a protective airtight door according to claim 1, characterized in that: The clamping block (15) is connected to one end away from the supporting shaft (10) and is provided with a rubber block (18).

5. The hinge fastening device for a protective airtight door according to claim 1, characterized in that: The top of the clamping block (15) is connected with a concave and convex surface.

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