CN217975869U

CN217975869U - Door closer with spherical connecting rod

Info

Publication number: CN217975869U
Application number: CN202222008852.8U
Authority: CN
Inventors: 陈招胜; 陆际泽; 陈甘泉
Original assignee: Oude Door Control Technology Co ltd
Current assignee: Oude Door Control Technology Co ltd
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2022-12-06
Anticipated expiration: 2032-08-01

Abstract

The utility model belongs to the technical field of the door closer and specifically relates to a door closer of spherical connecting rod is related to, and it is including installing the connecting seat on the door frame, it has the connecting rod to articulate on the connecting seat, run through on the connecting seat and seted up inner wall utensil screwed thread groove, thread groove female connection has adjusting bolt, adjusting bolt's tip supports tightly in the articulated axis of rotation of connecting rod. This application has the effect of convenient maintenance when speed adjusting mechanism breaks down.

Description

Door closer with spherical connecting rod

Technical Field

The application relates to the field of door closers, in particular to a door closer with a spherical connecting rod.

Background

Along with the development of our society, the application of door closers is more and more common, and door closers are often installed in markets, factories and office buildings and can play a role in automatically closing doors.

The door closer is including installing the casing on the door and installing the connecting seat on the door frame, and articulated on the connecting seat have a connecting rod, and the other end of connecting rod articulates on the casing, opens and closes the tip that the door drove the connecting rod and rotates on the casing, installs in the casing to be used for resetting pivoted canceling release mechanical system to the connecting rod. The speed adjusting mechanism is used for adjusting the door closing speed and comprises a speed adjusting bolt penetrating through the side wall of the door closer, the speed adjusting bolt plays a role of a switch, and a worker controls the door closing speed through the rotating speed adjusting bolt.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the bad condition of contradicting appears leading to appearing in the damage when speed adjusting bolt tip shape appearing, directly back out adjusting bolt will lead to hydraulic oil to reveal, need to maintain the whole taking apart of door closer promptly, and the maintenance process is loaded down with trivial details.

SUMMERY OF THE UTILITY MODEL

In order to improve speed adjusting mechanism or speed adjusting bolt when breaking down, the loaded down with trivial details problem of maintenance process, this application provides a door closer of spherical connecting rod.

The application provides a door closer of spherical connecting rod adopts following technical scheme:

the utility model provides a door closer of spherical connecting rod, is including installing the connecting seat on the door frame, it has the connecting rod to articulate on the connecting seat, run through on the connecting seat and seted up inner wall utensil screwed thread groove, thread groove female connection has adjusting bolt, adjusting bolt's tip supports tightly in the articulated axis of rotation of connecting rod.

Through adopting above-mentioned technical scheme, adjusting bolt contradicts and damages and lead to contradicting badly at the tip lateral wall of connecting rod axis of rotation, and the conflict lateral wall appears damaging and will lead to the adjusting bolt slope, and the staff can directly unscrew adjusting bolt and do not worry hydraulic oil and reveal, then change adjusting bolt and can realize the maintenance, easy maintenance and swift.

Optionally, a spherical ball groove is formed in the connecting seat, a spherical rotating ball is arranged at the end of the connecting rod, the rotating ball rotates in the ball groove, a rotating groove for the connecting rod to be inserted and slide along with the rotation of the rotating ball is further formed in the connecting seat, and the adjusting bolt abuts against the rotating ball.

Through adopting above-mentioned technical scheme, contradict through being spherical rolling ball and being spherical ball groove inner wall, increased the area of contact between connecting rod tip and the connecting seat greatly to reduced the connecting rod and led to the fact the pressure to the connecting seat when rotating, improved the upper limit of the holding capacity between connecting rod and the connecting seat, made connecting rod and connecting seat be difficult to appear damaging, prolonged the life of connecting rod and connecting seat.

Optionally, the inner wall of the ball groove is covered with a wear-resistant layer for resisting friction with the rotating ball.

Through adopting above-mentioned technical scheme, conflict with the roating sphere through the wearing layer for the roating sphere is transferred to the wearing layer to the frictional wear of ball inslot wall on, thereby has played the guard action to ball inslot wall, simultaneously because the wearing layer has certain elasticity, makes wearing layer surface can conflict with the roating sphere surface fully, makes the atress of the rotation in-process of roating sphere more evenly stable, makes the rotation of roating sphere more smooth and easy.

Optionally, a wear-resistant block is arranged at the end of the adjusting bolt, and the wear-resistant block is used for abutting against the rotating ball.

Through adopting above-mentioned technical scheme, the adjusting bolt tip comes to contradict with the rolling ball lateral wall through wear-resisting piece, thereby the probability of adjusting bolt tip lateral wall wearing and tearing has been reduced, and through the certain deformability that wear-resisting piece self possessed, make wear-resisting piece surface can conflict the extrusion with the rolling ball lateral wall fully, thereby make the atress of rolling ball more even, contact area has still been increased, make pressure intensity of having reduced under the same circumstances of pressure, play the guard action to the rolling ball lateral wall, the life in rolling ball and the adjusting bolt has been prolonged.

Optionally, the wear-resistant block slides in the threaded groove, an adjusting spring is arranged between the end of the adjusting bolt and the wear-resistant block, and the adjusting spring extends and retracts along a direction in which the wear-resistant block abuts against the side wall of the rotating ball.

Through adopting above-mentioned technical scheme, push up through adjusting bolt and move the adjusting spring and exert pressure to wear-resisting piece to increased staff rotating adjusting bolt's distance, when can making staff rotating adjusting bolt control exert pressure to wear-resisting piece, can control pressure's change more accurately, made things convenient for staff's operation.

Optionally, a sliding surface for sliding the wear-resistant block is formed on the inner wall of the end part of the threaded groove close to the rotating ball.

Through adopting above-mentioned technical scheme, slide on the sliding surface through wear-resisting piece, reduced the grinding of screw thread inner wall to wear-resisting piece, played the guard action to wear-resisting piece lateral wall, prolonged the life of wear-resisting piece, still make wear-resisting piece more comfortable when sliding.

Optionally, a bearing block is arranged on the connecting seat, and the thread groove is formed in the bearing block.

Through adopting above-mentioned technical scheme, through seting up the thread groove on the carrier block, make adjusting bolt, adjustment spring and wear-resisting piece all be located the carrier block for the wall thickness of connecting seat can suitably reduce, thereby has reduced the wall thickness of connecting seat, reduces material materials, has reduced manufacturing cost.

Optionally, the parcel has the skid resistant course on the adjusting bolt utensil screwed lateral wall, the skid resistant course is used for inconsistent with the screw thread of thread groove inner wall.

Through adopting above-mentioned technical scheme, contradict the laminating through skid resistant course and thread groove inner wall for the skid resistant course has under the condition of certain deformability at self, and the skid resistant course lateral wall will be fully contacted with thread groove inner wall, has increased area of contact, has increased frictional force, has reduced adjusting bolt misrun's probability, has improved adjusting bolt's stability.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the staff can directly unscrew adjusting bolt without worrying about hydraulic oil leakage, can realize maintenance by directly replacing adjusting bolt, and is convenient and quick to maintain

2. The upper limit of the bearing capacity between the connecting rod and the connecting seat is improved, the service lives of the connecting rod and the connecting seat are prolonged, the rotating ball rotates more smoothly, the service lives of the rotating ball and the adjusting bolt are prolonged, the change of pressure can be controlled more accurately by workers, and operation is facilitated.

Drawings

Fig. 1 is a schematic view of the overall structure of a door closer with a spherical link according to an embodiment of the present application.

Fig. 2 is an exploded view of the connecting socket.

Fig. 3 isbase:Sub>A schematic sectional view taken along linebase:Sub>A-base:Sub>A in fig. 2.

Description of reference numerals: 1. a connecting seat; 11. a ball groove; 12. a rotating groove; 13. a wear layer; 2. a connecting rod; 21. rotating the ball; 3. a thread groove; 31. adjusting the bolt; 32. a wear-resistant block; 33. adjusting the spring; 34. a sliding surface; 4. a bearing block; 41. an anti-slip layer; 5. a seat plate; 51. a seat cover.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a door closer with a spherical connecting rod. Referring to fig. 1 and 2 and 3, the door closer of spherical connecting rod is including installing connecting seat 1 on the door frame and installing the casing on the door, it is ball groove 11 to have seted up in connecting seat 1, the ball groove 11 internal rotation has and is spherical turning ball 21, run through on the connecting seat 1 and seted up turning groove 12, threaded connection connecting rod 2 on the turning ball 21, and connecting rod 2 stretches out and articulates on the casing from turning groove 12, and the tip of connecting rod 2 passes through turning ball 21 and ball groove 11 articulates on connecting seat 1 this moment.

Referring to fig. 2 and 3, the connecting base 1 includes a base plate 5 and a base cover 51, the base cover 51 is connected to the base plate 5 through a bolt, a ball groove 11 is formed between the inner wall of the base cover 51 and the base plate 5, and a rotation groove 12 is formed on the outer side wall of the base cover 51.

Referring to fig. 2 and 3, the connecting rod 2 rotates with the opening and closing of the door, at this time, the end of the connecting rod 2 slides in the rotating groove 12 and drives the rotating ball 21 to rotate, the length of the rotating groove 12 represents the rotatable angle of the connecting rod 2, i.e., the included angle between the two ends of the rotating groove 12 in the length direction and the spherical center of the rotating ball 21 is the rotatable angle of the connecting rod 2.

Referring to fig. 2 and 3, the inner wall of the ball groove 11 is covered with a wear-resistant layer 13 for friction with the rotating ball 21, and in this embodiment, the wear-resistant layer 13 is made of wear-resistant rubber.

Referring to fig. 3, a bearing block 4 is fixedly connected to the outer side wall of the seat cover 51, a thread groove 3 is formed in the bearing block 4, a thread is formed in the inner wall of the thread groove 3, the thread groove 3 penetrates through the bearing block 4 and the side wall of the seat cover 51, the thread groove 3 is communicated with the ball groove 11, and the depth direction of the thread groove 3 points to the ball center of the rotating ball 21. The inner wall of the thread groove 3 is formed with a slide surface 34 at a position close to the ball groove 11, and the slide surface 34 is not provided with threads.

Referring to fig. 3, the bearing block 4 is connected with an adjusting bolt 31 through a thread, a thread is formed on a side wall of an outer ring of the adjusting bolt 31, the adjusting bolt 31 is inserted from an opening surface of the thread groove 3 far away from the seat cover 51, and the thread on the side wall of the outer ring of the adjusting bolt 31 is matched with the thread on the inner wall of the thread groove 3. The outer side wall of the adjusting bolt 31 with the thread is wrapped with an anti-slip layer 41, the anti-slip layer 41 is used for being inconsistent with the thread of the inner wall of the thread groove 3, and in the embodiment, the anti-slip layer 41 is made of rubber with high friction coefficient and certain elasticity coefficient.

Referring to fig. 3, the end of the adjusting bolt 31 located in the thread groove 3 abuts against and abuts against a wear-resistant block 32, the wear-resistant block 32 slides on the sliding surface 34, the outer side wall of the wear-resistant block 32 abuts against the inner wall of the sliding surface 34, one end of the wear-resistant block 32 penetrates through the wear-resistant layer 13 and abuts against the outer side wall of the rotating ball 21, and the other end of the wear-resistant block 32 is located in the thread groove 3 all the time.

Referring to fig. 3, an adjustment spring 33 is mounted between the end side wall of the adjustment bolt 31 facing the ball groove 11 and the side wall of the wear-resistant block 32 facing the adjustment bolt 31, and the adjustment spring 33 expands and contracts in the direction in which the wear-resistant block 32 abuts the side wall of the rotating ball 21.

The implementation principle of the door closer of the spherical connecting rod in the embodiment of the application is as follows: when the worker needs to adjust the door closing speed, the worker only needs to screw or unscrew the adjusting bolt 31, so that the force of the abrasion-resistant block 32 against the rotating ball 21 is controlled, and the friction force between the rotating ball 21 and the abrasion-resistant layer 13, which needs to be overcome during rotation, can be adjusted. And the whole part for adjusting the door closing speed is positioned on the seat cover 51, so that the replacement and the maintenance are more convenient, and when the connecting rod 2 fails, the connecting rod 2 can be screwed down for maintenance or replacement; when the adjusting bolt 31 is in failure, the adjusting bolt 31 can be unscrewed for maintenance or replacement; when the adjusting spring 33 has a fault, the adjusting bolt 31 can be screwed off, and the adjusting spring 33 can be taken out for maintenance or replacement; when the wear-resistant block 32 has a fault, the adjusting bolt 31 can be unscrewed, and then the adjusting spring 33 is taken out, so that the wear-resistant block 32 can be taken out for maintenance or replacement; when the wear-resistant layer 13 or the rotating ball 21 fails, the bolts between the seat cover 51 and the seat plate 5 can be unscrewed, and the seat cover 51 can be detached to repair or replace the wear-resistant layer 13 or the rotating ball 21.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a door closer of spherical connecting rod, is including installing connecting seat (1) on the door frame, articulated on connecting seat (1) have connecting rod (2), its characterized in that: the connecting seat (1) is provided with a thread groove (3) with a thread on the inner wall in a penetrating mode, the thread groove (3) is connected with an adjusting bolt (31) in a threaded mode, and the end portion of the adjusting bolt (31) abuts against the hinged rotating shaft of the connecting rod (2).

2. The door closer of the spherical link according to claim 1, wherein: spherical ball groove (11) are arranged in connecting seat (1), spherical rotating ball (21) is arranged at the end of connecting rod (2), rotating ball (21) rotates in ball groove (11), sliding rotating groove (12) for connecting rod (2) to insert and rotate along with rotating ball (21) is further arranged on connecting seat (1), and adjusting bolt (31) is abutted on rotating ball (21).

3. The door closer of the spherical link according to claim 2, wherein: the inner wall of the ball groove (11) is covered with a wear-resistant layer (13) which is used for abutting and rubbing against the rotating ball (21).

4. A door closer with a spherical link according to claim 2, wherein: the end part of the adjusting bolt (31) is provided with a wear-resistant block (32), and the wear-resistant block (32) is used for abutting against the rotating ball (21).

5. The door closer of the spherical link according to claim 4, wherein: the wear-resistant block (32) slides in the threaded groove (3), an adjusting spring (33) is arranged between the end part of the adjusting bolt (31) and the wear-resistant block (32), and the adjusting spring (33) stretches along the direction in which the wear-resistant block (32) butts against the side wall of the rotating ball (21).

6. The door closer of the spherical link according to claim 5, wherein: and a sliding surface (34) for sliding the wear-resistant block (32) is formed on the inner wall of the end part of the threaded groove (3) close to the rotating ball (21).

7. The door closer of the spherical link according to claim 1, wherein: the connecting seat (1) is provided with a bearing block (4), and the thread groove (3) is formed in the bearing block (4).

8. The door closer of the spherical link according to claim 1, wherein: the adjusting bolt (31) has parcel on the screwed lateral wall and has skid resistant course (41), skid resistant course (41) are used for inconsistent with the screw thread of thread groove (3) inner wall.