CN221143993U

CN221143993U - Adjustable door closer

Info

Publication number: CN221143993U
Application number: CN202323322622.XU
Authority: CN
Inventors: 谢作怀
Original assignee: Zhejiang Saiou Hardware Products Co ltd
Current assignee: Zhejiang Saiou Hardware Products Co ltd
Priority date: 2023-12-07
Filing date: 2023-12-07
Publication date: 2024-06-14
Anticipated expiration: 2033-12-07

Abstract

The utility model relates to the technical field of door control hardware, and discloses an adjustable door closer. This door closer with adjustable, including the connecting seat, the connecting seat top rotates and is connected with the turning block, the turning block openly articulates there is the sliding support, the inside sliding connection of sliding support has the slider, the slider openly rotates and is connected with the threaded rod, threaded rod periphery threaded connection is inside the screw sleeve, the inside sliding connection of slider has the shock strut, the positive fixedly connected with dog of shock strut, shock strut back fixedly connected with buffer assembly. When the door closer is used, the initial position of the sliding block is conveniently and randomly adjusted by arranging the threaded rod and the threaded sleeve, and meanwhile, the damping column, the damping spring and the damping rubber ring are arranged, so that the impact force generated when the sliding block with the initial position changed during door opening collides with the back surface of the sliding support is reduced, the door closer is not easy to damage, and the service life of the door closer is prolonged.

Description

Adjustable door closer

Technical Field

The utility model relates to the technical field of door control hardware, in particular to an adjustable door closer.

Background

The door closer is a hydraulic device similar to a spring on a door head, can be released after being compressed after being opened, automatically closes the door, has the function of a spring-like door, and can ensure that the door is accurately and timely closed to an initial position after being opened. Modern hydraulic door closers, which are different from traditional door closers, are a patent registered by americans in the early twentieth century, and achieve a cushioning effect by throttling the liquid in the door closers.

Through retrieving, the authorized bulletin number is CN216197390U discloses a door closer, and its content records "a door closer, including door closer body, connecting seat and link mechanism, link mechanism includes swinging arms and telescopic link, the telescopic link includes inserted bar and loop bar, the loop bar is equipped with the holding the slot of inserted bar, the side of loop bar is equipped with the intercommunication the regulation hole of slot, the regulation hole is used for the accommodation bolt to fix the loop bar. After the door closer is installed, the length of the telescopic rod can be still adjusted, so that the opening and closing angle of the door closer is adjusted, the door closer is not required to be detached, and the door closer is convenient to adjust.

Although the device can adjust the opening and closing angle of the door closer by adjusting the length of the telescopic rod, in actual use, the adjusting range of the device is realized by adjusting the hole, the adjusted angle can be selected only by a few gears, the device is not completely suitable for actual use conditions during adjustment, and meanwhile, as the telescopic rod is lengthened, the inserted rod in the rope rod collides with the bottom of the sliding support during working, the inserted rod is damaged, and the door closer is possibly damaged.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides an adjustable door closer, which solves the problems that the length of a telescopic rod in the prior art cannot be adjusted at will, the telescopic rod is lengthened and is easy to collide, thereby influencing the service life and the like.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a door closer with adjustable, includes the connecting seat, the connecting seat top rotates and is connected with the turning block, the turning block openly articulates there is the sliding support, the inside sliding connection of sliding support has the slider, the slider openly rotates and is connected with the threaded rod, threaded rod periphery threaded connection is inside the screw sleeve, the inside sliding connection of slider has the shock strut, the positive fixedly connected with dog of shock strut, shock strut back fixedly connected with buffer assembly, shock strut periphery fixedly connected with shock attenuation rubber ring, the shock tank has been seted up to the slider inside.

Preferably, the screw sleeve front end articulates there is drive assembly, drive assembly outer turnover is connected with the main casing, the piston groove has been seted up to the inside of main casing, piston groove left side inner wall has the piston ring through closing spring elastic connection, the damping groove has been seted up to the piston groove upper and lower both sides, the spout has been seted up to the damping groove bottom, equal sliding connection in spout and the damping groove has the sprue, sprue bottom fixedly connected with linking bridge, linking bridge internal thread connection has the screw thread post.

Preferably, the buffer assembly comprises a damping spring, one end of the damping spring is fixedly connected to the back face of the sliding block, the other end of the damping spring is fixedly connected with a damping pad, and the front face of the damping pad is fixedly connected to the back face of the damping column.

Preferably, the periphery of the threaded sleeve is slidably connected to the front face of the sliding support.

Preferably, the damping rubber ring is made of rubber and can generate elastic deformation, and the periphery of the damping rubber ring is clamped inside the damping groove.

Preferably, the transmission assembly comprises a connecting rod, the front end of the connecting rod is hinged to the front end of the threaded sleeve, a rotating shaft is fixedly connected to the inside of the rear end of the connecting rod, the outer periphery of the rotating shaft is in turnover connection with the top of the main shell, a gear is fixedly connected to the periphery of the rotating shaft, a rack is meshed to the back of the gear, and the back of the rack is fixedly connected to the inside of the piston ring.

Preferably, one end of the door closing spring is fixedly connected to the inner wall of the left side of the piston groove, and the other end of the door closing spring is fixedly connected to the left side of the piston ring.

Preferably, the connecting bracket is slidably connected to the inside of the main casing, and the top of the threaded column is fixedly connected to the bottom of the main casing.

The utility model has the following beneficial effects:

1. According to the utility model, the initial position of the sliding block is conveniently and randomly adjusted by arranging the threaded rod and the threaded sleeve, and meanwhile, the damping column, the damping spring and the damping rubber ring are arranged, so that the impact force generated when the sliding block with the initial position changed collides with the back of the sliding bracket during door opening is reduced, the door closer is not easy to damage, and the service life of the door closer is prolonged.

2. According to the utility model, the blocking block and the connecting support are arranged, and the threaded column is rotated, so that the blocking block blocks the damping groove, and the passing flow of high-viscosity lubricating oil is reduced, so that the resistance generated when the door closer opens and closes the door is increased, the resistance of the door closer is conveniently adjusted, and the practicability is improved.

Drawings

FIG. 1 is a schematic view of the overall front perspective structure of the present utility model;

FIG. 2 is a schematic view of a top perspective structure of a sliding bracket according to the present utility model;

FIG. 3 is a schematic view of a top cross-sectional perspective structure of a slider according to the present utility model;

fig. 4 is a schematic front sectional perspective view of the main housing of the present utility model.

Legend description:

1. A connecting seat; 2. a rotating block; 3. a sliding support; 4. a slide block; 5. a threaded rod; 6. a threaded sleeve; 7. a shock-absorbing column; 8. a stop block; 9. a damping spring; 10. a shock pad; 11. damping rubber rings; 12. a damping groove; 13. a connecting rod; 14. a rotating shaft; 15. a gear; 16. a rack; 17. piston rings; 18. a main housing; 19. a piston groove; 20. a door closing spring; 21. a damping groove; 22. blocking; 23. a chute; 24. a connecting bracket; 25. and (5) a threaded column.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides an adjustable door closer, which comprises a connecting seat 1 connected with a door frame, wherein a rotating block 2 is rotatably connected to the top of the connecting seat 1, a sliding support 3 is hinged to the front surface of the rotating block 2, a rectangular slot is arranged in the middle of the sliding support 3, a sliding block 4 is slidably connected in the rectangular slot in the sliding support 3, the sliding support 3 limits the sliding block 4 to move back and forth only along the rectangular slot in the sliding support 3, a threaded rod 5 is rotatably connected to the front surface of the sliding block 4, the outer circumference of the threaded rod 5 is screwed in a threaded sleeve 6, the threaded rod 5 is rotated to move back and forth along the inner wall of the threaded sleeve 6, the outer circumference of the threaded sleeve 6 is slidably connected to the front surface of the sliding support 3, shock absorbing columns 7 are slidably connected in the sliding block 4, four groups of shock absorbing columns 7 are symmetrically distributed on four corners of the sliding block 4, the shock absorbing columns 7 can only move back and forth along the inner wall of the sliding block 4, the front of the shock absorption column 7 is fixedly connected with a stop block 8, the stop block 8 limits the shock absorption column 7 to ensure that the shock absorption column 7 cannot be separated from the inside of the sliding block 4, the back of the shock absorption column 7 is fixedly connected with a buffer component for weakening impact force, the buffer component comprises shock absorption springs 9, the shock absorption springs 9 are provided with four groups and are respectively arranged on the periphery of the shock absorption column 7 and sleeve the shock absorption column 7, one end of each shock absorption spring 9 is fixedly connected with the back of the sliding block 4, the other end of each shock absorption spring 9 is fixedly connected with a shock absorption pad 10, when the shock absorption pad 10 is not stressed, the shock absorption springs 9 push the shock absorption pad 10 to move towards the back, the front of the shock absorption pad 10 is fixedly connected with the back of the shock absorption column 7, the periphery of the shock absorption column 7 is fixedly connected with a shock absorption rubber ring 11, the shock absorption rubber ring 11 is provided with four groups and is linearly arranged on the periphery of the shock absorption column 7, a shock absorption groove 12 is formed in the inside the sliding block 4, the shock absorption groove 12 is provided with eight groups, the linear average distributes in the periphery of shock strut 7, and shock attenuation rubber ring 11 material is rubber, can produce elastic deformation, and shock attenuation rubber ring 11 periphery joint is inside shock attenuation groove 12, and when shock attenuation rubber ring 11 was in the back-and-forth slip of taking place, shock attenuation rubber ring 11 can take place the deformation under the extrusion of shock attenuation groove 12 to take place to slide, slide in another group of shock attenuation groove 12 that is adjacent around to.

Referring to fig. 1 and 4, the front end of the threaded sleeve 6 is hinged with a transmission component for transmitting power, the transmission component is externally and rotationally connected with a main shell 18, the main shell 18 is connected with a door through a bolt, a piston groove 19 is formed in the main shell 18, the left inner wall of the piston groove 19 is elastically connected with a piston ring 17 through a door closing spring 20, the piston ring 17 slides in the piston groove 19, a rectangular groove is formed in the piston ring 17, one end of the door closing spring 20 is fixedly connected with the left inner wall of the piston groove 19, the other end of the door closing spring 20 is fixedly connected with the left side of the piston ring 17, the door closing spring 20 pushes the piston ring 17 to move rightwards along the piston groove 19 when the piston ring 17 is not stressed, the transmission component comprises a connecting rod 13, the front end of the connecting rod 13 is hinged at the front end of the threaded sleeve 6, a rotating shaft 14 is fixedly connected with the rear end of the connecting rod 13, a sealing bearing is arranged outside the rotating shaft 14, the outer circle of the rotating shaft 14 is connected with the top of the main shell 18 in a rotating way, the gear 15 is fixedly connected with the periphery of the rotating shaft 14, the rotating shaft 14 rotates and drives the gear 15 to rotate, the back of the gear 15 is meshed with the rack 16, the gear 15 rotates and drives the rack 16 to move left and right, the back of the rack 16 is fixedly connected with the inside of the piston ring 17, the inner space of the piston groove 19 is filled with highly viscous lubricating oil, damping grooves 21 are formed in the upper side and the lower side of the piston groove 19, four groups of damping grooves 21 are formed, openings at two ends of the damping grooves 21 are communicated with the piston groove 19, sliding grooves 23 are formed in the bottom of the damping grooves 21, two groups of sliding grooves 23 are formed in the inner side openings of the damping grooves 21 which are only arranged at the lower two groups, the sliding grooves 23 and the inside of the damping grooves 21 are respectively connected with a blocking block 22, the blocking block 22 is formed by combining an upper cylinder and a lower cylinder, the diameter of the upper cylinder is identical to the damping groove 21, the diameter of the lower cylinder is identical to the diameter of the sliding grooves 23, the chute 23 limits that the blocking piece 22 can only slide up and down along the inside of the chute 23, the bottom fixedly connected with linking bridge 24 of blocking piece 22, linking bridge 24 sliding connection is in the inside of main casing 18, and the inside threaded connection of linking bridge 24 has screw thread post 25, rotates screw thread post 25, and screw thread post 25 will drive linking bridge 24 and reciprocate, screw thread post 25 top fixed connection is in the bottom of main casing 18.

Working principle: when the initial position of the sliding block 4 is required to be conveniently adjusted, damage caused by the fact that impact caused by the change of the initial position of the sliding block 4 is reduced, the threaded rod 5 is rotated firstly, the threaded rod 5 stretches out backwards inside the threaded sleeve 6, the threaded rod 5 drives the sliding block 4 to slide backwards, the position of the sliding block 4 can be quickly and steplessly adjusted, at the moment, when the door is opened, the main shell 18 rotates forwards, the main shell 18 drives the threaded sleeve 6 to rotate leftwards through the transmission component and simultaneously moves backwards along the sliding support 3, the threaded sleeve 6 drives the sliding support 3 to rotate leftwards, the sliding support 3 drives the rotating block 2 to rotate leftwards around the connecting seat 1, the threaded sleeve 6 drives the threaded rod 5 to slide backwards, the threaded rod 5 drives the sliding block 4 to slide backwards along the sliding support 3, the sliding block 4 drives the shock-absorbing column 7 and the shock-absorbing pad 10 to move backwards, when the shock-absorbing pad 10 contacts with the inner wall of the back surface of the sliding support 3, the shock-absorbing spring 9 is continuously moved backwards at the moment, the shock-absorbing groove 12 moves backwards, the shock-absorbing rubber ring 11 is extruded, the shock-absorbing rubber ring 11 is simultaneously generated, the shock-absorbing ring 11 is simultaneously generates damping deformation, and the shock-absorbing deformation is reduced, and the shock-absorbing pad 12 generates large resistance, and the shock absorbing shock is transmitted. When the resistance when the door is opened is required to be changed, the threaded column 25 is rotated, the threaded column 25 drives the connecting support 24 to move upwards, the connecting support 24 drives the blocking block 22 to slide upwards in the sliding groove 23, the cylinder above the blocking block 22 enters the damping groove 21, and the threaded column 25 is continuously rotated, so that the blocking block 22 blocks the lower damping groove 21, at the moment, when the piston ring 17 moves leftwards, high-viscosity lubricating oil in the piston groove 19 moves rightwards through the damping groove 21, the lower damping groove 21 cannot pass through, the area through which the high-viscosity lubricating oil can pass is reduced, the resistance generated by the piston ring 17 is increased, and the resistance generated when the door is opened is conveniently adjusted.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. An adjustable door closer, including connecting seat (1), its characterized in that: the connecting seat (1) top rotates and is connected with rotating block (2), rotating block (2) openly articulates there is sliding support (3), sliding support (3) inside sliding connection has slider (4), slider (4) openly rotates and is connected with threaded rod (5), threaded rod (5) periphery threaded connection is inside screw sleeve (6), slider (4) inside sliding connection has shock strut (7), shock strut (7) openly fixedly connected with dog (8), shock strut (7) back fixedly connected with buffer assembly, shock strut (7) periphery fixedly connected with shock attenuation rubber ring (11), shock tank (12) have been seted up to slider (4) inside.

2. An adjustable door closer according to claim 1, wherein: the novel hydraulic damper is characterized in that the front end of the threaded sleeve (6) is hinged with a transmission assembly, the transmission assembly is externally and rotationally connected with a main shell (18), a piston groove (19) is formed in the main shell (18), piston rings (17) are elastically connected to the left side inner wall of the piston groove (19) through door closing springs (20), damping grooves (21) are formed in the upper side and the lower side of the piston groove (19), sliding grooves (23) are formed in the bottoms of the damping grooves (21), blocking blocks (22) are slidably connected to the sliding grooves (23) and the damping grooves (21), connecting supports (24) are fixedly connected to the bottom ends of the blocking blocks (22), and threaded columns (25) are connected to the inner threads of the connecting supports (24).

3. An adjustable door closer according to claim 1, wherein: the damping assembly comprises a damping spring (9), one end of the damping spring (9) is fixedly connected to the back of the sliding block (4), the other end of the damping spring (9) is fixedly connected with a damping pad (10), and the front of the damping pad (10) is fixedly connected to the back of the damping column (7).

4. An adjustable door closer according to claim 1, wherein: the periphery of the threaded sleeve (6) is connected to the front face of the sliding support (3) in a sliding mode.

5. An adjustable door closer according to claim 1, wherein: the damping rubber ring (11) is made of rubber and can generate elastic deformation, and the periphery of the damping rubber ring (11) is clamped inside the damping groove (12).

6. An adjustable door closer according to claim 2, wherein: the transmission assembly comprises a connecting rod (13), the front end of the connecting rod (13) is hinged to the front end of a threaded sleeve (6), a rotating shaft (14) is fixedly connected to the inside of the rear end of the connecting rod (13), the rotating shaft (14) is externally and rotationally connected to the top of a main shell (18), a gear (15) is fixedly connected to the periphery of the rotating shaft (14), a rack (16) is meshed to the back of the gear (15), and the back of the rack (16) is fixedly connected to the inside of a piston ring (17).

7. An adjustable door closer according to claim 2, wherein: one end of the door closing spring (20) is fixedly connected to the left inner wall of the piston groove (19), and the other end of the door closing spring (20) is fixedly connected to the left side of the piston ring (17).

8. An adjustable door closer according to claim 2, wherein: the connecting support (24) is slidably connected to the inside of the main casing (18), and the top of the threaded column (25) is fixedly connected to the bottom of the main casing (18).