Door closer

Abstract

The utility model discloses a door closer which comprises a mounting rod, a connecting frame and an engaging block are arranged on the bottom face of an inner cavity of the mounting rod, an electromagnet is arranged on the right side of the top face of the connecting frame, the outer wall of an ejector rod contained in the electromagnet is connected with a starting mechanism through a first shaft, and the right side of the starting mechanism is connected with an adjusting mechanism. The left side of the top face of the adjusting mechanism is connected with a locking mechanism through a second shaft, a sliding mechanism is arranged on the top face of the mounting rod, a sensor is arranged on the left side of the bottom face of an inner cavity of the mounting rod, the starting mechanism comprises a third shaft, a special-shaped starting top block and a top opening, and the third shaft is arranged on the right side of an inner cavity of the connecting frame. According to the technical scheme, the length of the adjusting frame is increased compared with the length of an adjusting plate at the position of a lever in the prior art, the thickness of the adjusting frame is reduced compared with the thickness of the adjusting plate at the position of the lever in the prior art, and the manufacturing cost and the using cost are reduced through the stamping manufacturing process and comprehensive superposition.

Description

Technical Field

[0001] The utility model relates to the technical field of door closer auxiliary equipment, in particular to a door closer. Background Art

[0002] A door closer is a spring-like hydraulic device attached to a door. Once the door is opened, it compresses and then releases, automatically closing the door. Like a spring-loaded door, it ensures that the door accurately and promptly closes to its initial position after opening. The modern hydraulic door closer (or door closer for short) originated from an American patent registered in the early 20th century. Unlike traditional door closers, it achieves a buffering effect by throttling the fluid within the door closer. The core design concept of the hydraulic door closer is to achieve control over the closing process, enabling various functional indicators of the closing process to be adjusted according to user needs.

[0003] In the prior art, a door closer uses a lever between an electromagnet and an adjustment plate to drive and lock the sliding end. However, the adjustment plate is short and thick, which increases the manufacturing cost.

[0004] In view of this, a door closer is provided to overcome the above-mentioned drawbacks. Utility Model Content

[0005] In view of the problems in the related art, the present invention proposes a door closer to overcome the above technical problems existing in the existing related art.

[0006] To this end, the specific technical solutions adopted in this utility model are as follows:

[0007] The door closer includes a mounting rod, a connecting frame and an engaging block are provided on the bottom surface of the inner cavity of the mounting rod, an electromagnet is provided on the right side of the top surface of the connecting frame, the outer wall of the top rod contained in the electromagnet is connected to a starting mechanism via a first axis, the right side of the starting mechanism is connected to an adjusting mechanism, the left side of the top surface of the adjusting mechanism is connected to a locking mechanism via a second axis, the top surface of the mounting rod is provided with a sliding mechanism, and the left side of the bottom surface of the inner cavity of the mounting rod is provided with a sensor.

[0008] Preferably, the starting mechanism includes a third shaft, a special-shaped starting top block and a top opening. The third shaft is arranged on the right side of the inner cavity of the connecting frame. The outer wall of the third shaft is sleeved with a special-shaped starting top block, and the special-shaped starting top block is connected to the top rod included in the electromagnet through the first shaft. A top opening is dug in the middle of the right side of the special-shaped starting top block.

[0009] Preferably, the adjustment mechanism includes an adjustment frame, a first spring and a second spring, the first spring is arranged between the adjustment frame and the connecting frame, the second spring is arranged on the left side of the top surface of the adjustment frame, and the right side of the inner wall of the adjustment frame abuts against the top opening.

[0010] Preferably, the locking mechanism includes a locking plate, a fixed plate, a fourth shaft and a locking block. The locking plate is arranged on the left side of the adjustment frame through the second shaft. The top of the locking plate is fixedly connected to the fixed plate. The fourth shaft is arranged between the locking plates, and the outer wall of the fourth shaft is provided with a locking block.

[0011] Preferably, the locking plate is sleeved on the outer wall of the second shaft and is symmetrically arranged.

[0012] Preferably, the sliding mechanism includes a slide groove, a slider and a semicircular docking block. The slide groove is dug at the top of the mounting rod. A slider is slidably arranged in the slide groove. A semicircular docking block is fixedly connected to the right side of the slider, and the inner wall of the semicircular docking block is in contact with the locking block.

[0013] This utility model has the following beneficial effects:

[0014] Compared with the prior art, the door closer in this case has an adjustment frame with a longer length than the adjustment plate at the lever in the known art, and a thickness smaller than the adjustment plate at the lever in the known art. Both are manufactured through a stamping process, and the combined effect reduces the cost of manufacturing and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the main structure of a door closer according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of the mounting rod of the door closer according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the mounting rod of the door closer according to an embodiment of the present utility model, viewed from above;

[0019] Figure 4 This is a schematic side view of the internal structure of the mounting rod of the door closer according to an embodiment of the present utility model;

[0020] Figure 5 It is a schematic diagram of the disassembled structure inside the mounting rod of the door closer according to an embodiment of the present utility model.

[0021] In the picture:

[0022] 1. Mounting rod; 2. Connecting frame; 3. Engaging block; 4. Electromagnet; 5. First axis; 6. Starting mechanism; 7. Adjusting mechanism; 8. Second axis; 9. Locking mechanism; 10. Sliding mechanism; 11. Sensor; 12. Third axis; 13. Special-shaped starting ejector block; 14. Ejection port; 15. Adjusting frame; 16. First spring; 17. Second spring; 18. Locking plate; 19. Fixed plate; 20. Fourth axis; 21. Locking block; 22. Slide groove; 23. Slider; 24. Semicircular docking block. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of this practical embodiment clearer, the technical solutions in the embodiment will be clearly and completely described below in conjunction with the drawings in the practical embodiment. The following embodiments are used to illustrate this practical embodiment but are not used to limit the scope of this practical embodiment.

[0024] In the description of this utility model, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as a limitation on this utility model.

[0025] In the description of this utility, it should be noted that, unless otherwise specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility based on the specific circumstances.

[0026] Example

[0027] like Figure 1-5As shown, the door closer according to the embodiment of the present invention includes a mounting rod 1, the bottom surface of the inner cavity of the mounting rod 1 is provided with a connecting frame 2 and an engaging block 3, the right side of the top surface of the connecting frame 2 is provided with an electromagnet 4, the outer wall of the top rod contained in the electromagnet 4 is connected to a starting mechanism 6 through a first shaft 5, the right side of the starting mechanism 6 is connected to an adjusting mechanism 7, the left side of the top surface of the adjusting mechanism 7 is connected to a locking mechanism 9 through a second shaft 8, the top surface of the mounting rod 1 is provided with a sliding mechanism 10, and the left side of the bottom surface of the inner cavity of the mounting rod 1 is provided with a sensor 11; first, the electromagnet 4 is started, so that the outer wall of the top rod contained in the electromagnet 4 is adjusted with the components in the starting mechanism 6 through the first shaft 5, the components in the starting mechanism 6 are tilted with the right side of the components in the adjusting mechanism 7, and the locking mechanism 9 connected to the left side of the top surface of the starting mechanism 6 is driven by the second shaft 8, and the lever principle is used to make the components in the locking mechanism 9 move downward, and the locking mechanism 9 is brought into contact with the components in the sliding mechanism 10, so that the sliding structure in the sliding mechanism 10 can slide.

[0028] The starting mechanism 6 includes a third shaft 12, a special-shaped starting top block 13 and a top opening 14. The third shaft 12 is arranged on the right side of the inner cavity of the connecting frame 2. The outer wall of the third shaft 12 is sleeved with a special-shaped starting top block 13, and the special-shaped starting top block 13 is connected to the top rod included in the electromagnet 4 through the first shaft 5. A top opening 14 is dug in the middle of the right side of the special-shaped starting top block 13; the outer wall of the top rod included in the electromagnet 4 is lifted up with the special-shaped starting top block 13 through the first shaft 5, and the top opening 14 dug on the right side of the special-shaped starting top block 13 abuts against the right side of the inner wall of the adjustment frame 15. Driven by the special-shaped starting top block 13, the right side of the adjustment frame 15 is lifted up.

[0029] The adjusting mechanism 7 includes an adjusting frame 15, a first spring 16 and a second spring 17. The first spring 16 is provided between the adjusting frame 15 and the connecting frame 2, and the second spring 17 is provided on the left side of the top surface of the adjusting frame 15. The right side of the inner wall of the adjusting frame 15 abuts against the top opening 14. Driven by the special-shaped starting top block 13, the right side of the adjusting frame 15 is tilted up, and through the principle of leverage, the left side of the adjusting frame 15 moves downward with the locking plate 18 and the components thereon connected through the second shaft 8.

[0030] The locking mechanism 9 includes a locking plate 18, a fixed plate 19, a fourth shaft 20 and a locking block 21. The locking plate 18 is arranged on the left side of the adjustment frame 15 through the second shaft 8. The top of the locking plate 18 is fixedly connected to the fixed plate 19. The fourth shaft 20 is arranged between the locking plates 18. The outer wall of the fourth shaft 20 is provided with a locking block 21. The locking plate 18 is sleeved on the outer wall of the second shaft 8 and is symmetrically arranged; the left side of the adjustment frame 15 moves downward with the locking plate 18 connected by the second shaft 8 and the components thereon, so that the locking block 21 connected between the locking plates 18 by the fourth shaft 20 contacts and abuts the inner wall of the semicircular docking block 24 set on one side of the slider 23, and the slider 23 slides to the left in the slide groove 22.

[0031] The sliding mechanism 10 includes a slide groove 22, a slider 23 and a semicircular docking block 24. The slide groove 22 is dug at the top of the mounting rod 1. The slider 23 is slidably arranged in the slide groove 22. The right side of the slider 23 is fixedly connected to the semicircular docking block 24, and the inner wall of the semicircular docking block 24 is in contact with the locking block 21; the slider 23 contacts the switch contained in the sensor 11, and the switch is transmitted to the external terminal through the module, and the information is transmitted to the external terminal to complete the process.

[0032] In summary, with the help of the above-mentioned technical solution of the present invention, when this device is in use, the electromagnet 4 is first started by an external switch, so that the outer wall of the top rod contained in the electromagnet 4 is lifted up with the special-shaped starting top block 13 through the first axis 5, and the top opening 14 dug on the right side of the special-shaped starting top block 13 abuts against the right side of the inner wall of the adjusting frame 15. Driven by the special-shaped starting top block 13, the right side of the adjusting frame 15 is lifted up, and through the principle of leverage, the left side of the adjusting frame 15 moves downward with the locking plate 18 connected by the second axis 8 and the components thereon, so that the locking block 21 connected between the locking plates 18 through the fourth axis 20 contacts and abuts the inner wall of the semicircular docking block 24 set on one side of the slider 23, and the slider 23 slides to the left in the slide groove 22. The slider 23 contacts the switch contained in the sensor 11, and the switch is transmitted to the external terminal through the module, and the information is transmitted to the external terminal to complete the process.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A door closer, characterized in that: The invention comprises a mounting rod (1), wherein a connecting frame (2) and an engaging block (3) are provided on the bottom surface of the inner cavity of the mounting rod (1), an electromagnet (4) is provided on the right side of the top surface of the connecting frame (2), an outer wall of the top rod contained in the electromagnet (4) is connected to a starting mechanism (6) via a first shaft (5), an adjusting mechanism (7) is connected to the right side of the starting mechanism (6), a locking mechanism (9) is connected to the left side of the top surface of the adjusting mechanism (7) via a second shaft (8), a sliding mechanism (10) is provided on the top surface of the mounting rod (1), and a sensor (11) is provided on the left side of the bottom surface of the inner cavity of the mounting rod (1).

2. The door closer according to claim 1, characterized in that The starting mechanism (6) comprises a third shaft (12), a special-shaped starting top block (13) and a top opening (14); the third shaft (12) is arranged on the right side of the inner cavity of the connecting frame (2); the outer wall of the third shaft (12) is provided with a special-shaped starting top block (13); the special-shaped starting top block (13) is connected to the top rod contained in the electromagnet (4) through the first shaft (5); and the top opening (14) is excavated in the middle of the right side of the special-shaped starting top block (13).

3. The door closer according to claim 2, characterized in that The adjusting mechanism (7) comprises an adjusting frame (15), a first spring (16) and a second spring (17); the first spring (16) is arranged between the adjusting frame (15) and the connecting frame (2); the second spring (17) is arranged on the left side of the top surface of the adjusting frame (15); and the right side of the inner wall of the adjusting frame (15) is in contact with the top opening (14).

4. The door closer according to claim 3, characterized in that The locking mechanism (9) comprises a locking plate (18), a fixing plate (19), a fourth shaft (20) and a locking block (21); the locking plate (18) is arranged on the left side of the adjustment frame (15) through the second shaft (8); the top of the locking plate (18) is fixedly connected to the fixing plate (19); the fourth shaft (20) is arranged between the locking plates (18); and the outer wall of the fourth shaft (20) is provided with a locking block (21).

5. The door closer according to claim 4, characterized in that The locking piece (18) is sleeved on the outer wall of the second shaft (8) and is symmetrically arranged.

6. The door closer according to claim 5, characterized in that The sliding mechanism (10) comprises a sliding groove (22), a slider (23) and a semicircular docking block (24); the sliding groove (22) is dug at the top of the mounting rod (1); a slider (23) is slidably arranged in the sliding groove (22); a semicircular docking block (24) is fixedly connected to the right side of the slider (23); and the inner wall of the semicircular docking block (24) abuts against the locking block (21).

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