Anti-attrition structure of door closer

Abstract

The utility model discloses an anti-attrition structure of a door closer, which relates to the technical field of door closers and comprises a support rod, outer bearings are fixedly mounted inside two sides of the support rod, an oil inlet is fixedly mounted on one side of the top of each outer bearing, an oil outlet block is fixedly mounted inside each outer bearing, an inner bearing is movably connected inside each outer bearing, and the inner bearing is fixedly connected with the oil inlet. A bearing main body is movably connected to the interior of the inner bearing, and a threaded pipe is movably connected to the interior of the bearing main body. According to the anti-attrition structure of the door closer, lubricating oil can be added into an oil storage tank through an oil filling port, a push rod can move downwards by pushing a push block, so that a sealing plate can move downwards in the oil storage tank, and the lubricating oil can be pushed to enter a bearing main body and an outer bearing; and the sealing plate can be automatically pushed to move through the spring, so that the lubricating oil is assisted in entering, and the anti-attrition effect can be achieved through the lubricating oil.

Description

TECHNICAL FIELD

[0001] The utility model relates to door closer technical field, concretely is a door closer wear -reducing structure. BACKGROUND

[0002] The door closer is a device designed to assist the opening and closing action of doors and windows, and the significance of the door closer is not only to automatically close the door, but also to protect the door frame and the door body (smooth closing), which is used in commercial and public buildings, and the door closer makes the door automatically close to limit the spread of fire and ventilation in the building.

[0003] The existing can refer to the announcement number for: CN218991287U Chinese utility model patent, it discloses a kind of door closers, including shell, elastic expansion piece and guide drive base, the inside rotation of the shell is installed with eccentric piece for transmission;The elastic expansion piece is located in the shell, one end is hinged with the shell, and the other end is hinged with the eccentric piece;Rotary arm is installed on the outside of the shell, one end of the rotary arm is connected with the eccentric piece, and the other end extends towards the guide drive base;The guide drive base is provided with the guide sliding slot for the end of the rotary arm to enter and slide;When closing the door, the end of the rotary arm slides along the guide sliding slot, and the rotary arm drives the elastic expansion piece to swing through the eccentric piece, so that the elastic expansion piece is elongated / compressed to generate damping;The utility model provides a kind of door closer, overcomes the defects of complex structure, many parts and high manufacturing cost of existing door closer.

[0004] The existing door closer main body can play the effect of reducing wear through hydraulic oil, but the connecting shaft structure is worn after long-term use, thereby affecting the smoothness of automatic door closing, and the phenomenon of jamming is prone to occur. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the problem of high wear in prior art and provides a door closer wear-reducing structure.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0007] A door closer wear-reducing structure comprises:

[0008] Supporting rod, both sides of the supporting rod are internally fixedly installed with outer bearings, the top side of the outer bearings is fixedly installed with an oil inlet, the inner part of the outer bearings is fixedly installed with an oil outlet block, the inner part of the outer bearings is movably connected with an inner bearing, the inner part of the inner bearing is movably connected with a bearing body, the inner part of the bearing body is movably connected with a threaded pipe, the top of the oil inlet is fixedly installed with an oil storage tank, the oil storage tank is also fixedly installed on the top of the bearing body, one side of the oil storage tank is fixedly installed with an oil inlet, the inner part of the oil storage tank is movably connected with a push rod, the top of the push rod is fixedly installed with a push block, the bottom of the push rod is fixedly installed with a sealing plate, the top of the sealing plate is fixedly installed with a spring.

[0009] In a preferred embodiment, both sides of the supporting rod are fixedly installed with two connecting rings, the connecting rings are annular in shape, and the connecting rings are connecting structures.

[0010] In a preferred embodiment, the bottom side of the connecting ring is movably connected with a connecting groove, the connecting groove is "L" shaped, and the connecting groove is a supporting structure.

[0011] In a preferred embodiment, both sides of the inner part of the connecting groove are movably connected with two mounting bolts, the bottom inner part of the connecting groove is movably connected with a connecting bolt, and the connecting bolt is a connecting structure.

[0012] In a preferred embodiment, the other side of the bottom of the supporting rod is movably connected with a fixing bolt, the outer side of the fixing bolt is movably connected with a connecting rod, and the connecting rod is a supporting structure.

[0013] In a preferred embodiment, one side of the connecting rod is fixedly installed with a door closer body, one side of the door closer body is fixedly installed with a supporting plate, and the supporting plate is a supporting structure.

[0014] In a preferred embodiment, the inner part of the four sides of the supporting plate is movably connected with four positioning bolts, and the positioning bolts are structures for fixing the supporting plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The door closer wear-reducing structure, through the oil inlet, lubricating oil can be added into the inner part of the oil storage tank, the push block is pushed, the push rod can be moved downward, the sealing plate can be moved downward in the inner part of the oil storage tank, the lubricating oil can be pushed into the inner part of the bearing body and the outer bearing, the lubricating effect can be achieved, the sealing plate can be automatically moved by the spring, the lubricating oil can be supplemented, the wear-reducing effect can be achieved by the lubricating oil, and the practicability of the door closer wear-reducing structure is improved.

[0017] 2、The door closer wear-reducing structure can seep lubricating oil through the oil outlet block in the outer bearing, so that the inner bearing can rotate in the outer bearing, the bearing body has the same structure as the outer bearing and the inner bearing, so that the double-layer rotation effect is achieved, the practicability of the door closer wear-reducing structure is improved, the wear-reducing effect is achieved, and the fluency of the door closer wear-reducing structure is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an overall structure schematic view in the utility model;

[0019] Figure 2 It is a support rod schematic view in the utility model;

[0020] Figure 3 It is an outer bearing schematic view in the utility model;

[0021] Figure 4 It is an oil storage tank schematic view in the utility model;

[0022] Figure 5 It is a fixed bolt schematic view in the utility model.

[0023] 1, support rod;11, connecting ring;12, connecting groove;13, mounting bolt;14, connecting bolt;2, outer bearing;21, oil inlet;22, oil outlet block;23, inner bearing;24, bearing body;25, threaded tube;3, oil storage tank;31, oil filler;32, push rod;33, push block;34, sealing plate;35, spring;4, fixed bolt;41, connecting rod;42, door closer body;43, support plate;44, positioning bolt. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] The drawings are combined Figures 1-5 In the embodiment, a door closer wear-reducing structure comprises a support rod, two connecting rings are fixedly installed on the two sides of the support rod, the connecting rings have a ring shape, a connecting groove is movably connected to one side of the bottom of the connecting ring, the connecting groove has an "L" shape, two mounting bolts are movably connected to the inner sides of the connecting groove, and a connecting bolt is movably connected to the inner bottom of the connecting groove.

[0026] Specifically, the two connecting rings 11 are supported by the support rod 1, and the connecting groove 12 is fixed by the two mounting bolts 13 inside the connecting groove 12, thereby improving the practicability of the door closer wear-reducing structure.

[0027] The two sides of the support rod are internally fixedly installed with outer bearings, the top side of the outer bearing is fixedly installed with an oil inlet, the inner side of the outer bearing is fixedly installed with an oil outlet block, the inner side of the outer bearing is movably connected with an inner bearing, the inner side of the inner bearing is movably connected with a bearing body, and the inner side of the bearing body is movably connected with a threaded pipe.

[0028] Specifically, the inner side of the outer bearing 2 is oiled through the oil inlet 21, and the lubricating oil is exuded through the oil outlet block 22 inside the outer bearing 2, thereby reducing the friction between the inner bearing 23 and the outer bearing 2, and the bearing body 24 and the outer bearing 2 and the inner bearing 23 have the same structure.

[0029] The top of the oil inlet is fixedly installed with an oil storage tank, the oil storage tank is fixedly installed on the top of the bearing body, one side of the oil storage tank is fixedly installed with an oil inlet, the inner side of the oil storage tank is movably connected with a push rod, the top of the push rod is fixedly installed with a push block, the bottom of the push rod is fixedly installed with a sealing plate, and the top of the sealing plate is fixedly installed with a spring.

[0030] Specifically, the push block 33 is pushed, so that the push rod 32 moves downward, the sealing plate 34 is pushed to move downward, the lubricating oil inside the oil storage tank 3 is moved downward, and the lubricating oil is sent into the inner side of the outer bearing 2 or the bearing body 24.

[0031] The bottom of the support rod is movably connected with a fixing bolt on the other side, the outer side of the fixing bolt is movably connected with a connecting rod, one side of the connecting rod is fixedly installed with a door closer body, one side of the door closer body is fixedly installed with a support plate, and the inner side of the support plate is movably connected with four positioning bolts.

[0032] Specifically, the four positioning bolts 44 inside the four sides of the support plate 43 can be used to fix the support plate 43, and the support plate 43 can be used to support and fix the door closer body 42, thereby improving the practicability of the door closer wear-reducing structure.

[0033] Working principle: first, the door closer wear-reducing structure is placed in the designated position, the support plate 43 is fixed through the four positioning bolts 44 around the support plate 43, the support plate 43 can be fixed through the support plate 43, the connecting groove 12 can be supported and fixed through the mounting bolt 13, the threaded pipe 25 in the bearing body 24 can be embedded and connected through the connecting bolt 14 and the fixing bolt 4, the practicability of the door closer wear-reducing structure is improved, the push rod 32 can be moved upward by pulling the push block 33, so that the spring 35 can be retracted, so that the sealing plate 34 can be moved upward, so that the sealing plate 34 can be moved to the top of the oil filler hole 31, so that the lubricating oil can be added into the inside of the oil tank 3 through the oil filler hole 31, the practicability of the door closer wear-reducing structure is improved, the spring 35 rebounds, so that the sealing plate 34 can be moved downward, so that the hydraulic oil can be pushed into the inside of the outer bearing 2 from the oil inlet 21, so that the lubricating oil can be exuded through the oil outlet block 22 in the outer bearing 2, so that the wear-reducing effect of the rotation between the outer bearing 2 and the inner bearing 23 can be achieved, the problem of damage and looseness caused by excessive friction is avoided, the practicability of the door closer wear-reducing structure is improved, the bearing body 24 is in the inside of the inner bearing 23, the structure of the bearing body 24 and the outer bearing 2 and the inner bearing 23 is the same, so that the double-layer lubrication effect can be achieved, the problem of damage caused by friction is avoided, the practicability and convenience of the door closer wear-reducing structure are improved.

[0034] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A door closer friction-reducing structure, characterized in that, The door closer friction reduction structure includes a support rod (1), with outer bearings (2) fixedly installed inside both sides of the support rod (1). An oil inlet (21) is fixedly installed on one side of the top of the outer bearing (2). An oil outlet block (22) is fixedly installed inside the outer bearing (2). An inner bearing (23) is movably connected inside the outer bearing (2). A bearing body (24) is movably connected inside the inner bearing (23). A threaded pipe (25) is movably connected inside the bearing body (24). An oil storage tank (3) is fixedly installed on the top of the oil inlet (21). The oil storage tank (3) is also fixedly installed on the top of the bearing body (24). An oil filling port (31) is fixedly installed on one side of the oil storage tank (3). A push rod (32) is movably connected inside the oil storage tank (3). A push block (33) is fixedly installed on the top of the push rod (32). A sealing plate (34) is fixedly installed on the bottom of the push rod (32). A spring (35) is fixedly installed on the top of the sealing plate (34).

2. The door closer friction reduction structure according to claim 1, characterized in that: Two connecting rings (11) are fixedly installed on both sides of the support rod (1), and the connecting rings (11) are in the shape of a ring.

3. The door closer friction reduction structure according to claim 2, characterized in that: The bottom side of the connecting ring (11) is movably connected to a connecting groove (12), which is in the shape of an "L".

4. The door closer friction reduction structure according to claim 3, characterized in that: Two mounting bolts (13) are movably connected to the inner sides of the connecting groove (12), and a connecting bolt (14) is movably connected to the bottom of the connecting groove (12).

5. The door closer friction reduction structure according to claim 1, characterized in that: A fixing bolt (4) is movably connected to the other side of the bottom of the support rod (1), and a connecting rod (41) is movably connected to the outside of the fixing bolt (4).

6. The door closer friction reduction structure according to claim 5, characterized in that: A door closer body (42) is fixedly installed on one side of the connecting rod (41), and a support plate (43) is fixedly installed on one side of the door closer body (42).

7. The door closer friction reduction structure according to claim 6, characterized in that: The support plate (43) is movably connected to four positioning bolts (44) around its perimeter.

Images