Door closer convenient to position

Abstract

The utility model relates to the technical field of door closers, and discloses a door closer convenient to position, which comprises a body, the top end of the body is rotatably connected with a first connecting rod, the body is internally provided with a positioning rod, and the two sides of the positioning rod are fixedly connected with first bases. According to the door closer convenient to position, when a first connecting rod rotates, a sliding block is driven to move under the action of an ejector rod, a push rod is promoted to drive a positioning rod to automatically move upwards under the action of an arc-shaped block, the position of the positioning rod is limited under the action of the elastic force of a first spring, and the door closer can be automatically positioned and limited; the automatic rotation of the door is avoided, convenience is provided for pedestrians under the conditions that goods are carried or frequent passing is needed, the flexibility and practicability of the door closer are improved, and the problems that when the goods are carried or frequent passing is needed, the door closer drives the door to rotate automatically, certain hindrance is caused to passing, and passing burden is increased are solved.

Description

Technical Field

[0001] This application relates to the field of door closer technology, specifically a door closer that is easy to position. Background Technology

[0002] A door closer is a mechanical device that automatically closes a door. It works by using an internal hydraulic spring. When the door is opened, the door closer is compressed and then released to automatically close the door, ensuring that the door can be accurately and promptly closed to its initial position after being opened.

[0003] Existing door closers immediately rotate the door to close after it is opened. However, when moving items or when frequent passage is required, the door closer's automatic rotation can obstruct passage, increase the burden of passage, and reduce the flexibility and practicality of the door closer. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a door closer that is easy to position. This allows for convenient positioning of the door closer, providing convenience for pedestrians during cargo handling or when frequent passage is required. It also improves the flexibility and practicality of the door closer. This solves the problem that existing door closers immediately rotate the door to close after it is opened, which can obstruct passage and increase traffic burden when moving goods or during frequent passage, thus reducing the flexibility and practicality of the door closer.

[0005] To achieve the above objectives, this application provides the following technical solution: a door closer for easy positioning, comprising a body, a first connecting rod rotatably connected to the top of the body, a positioning rod provided inside the body, a first base fixedly connected to both sides of the positioning rod, a first rotating block rotatably connected inside each of the first bases, two second bases fixedly connected to the inner wall of the body, a second rotating block rotatably connected inside each of the second bases, a telescopic rod fixedly connected between the first rotating block and the second rotating block, a first spring fixedly connected between the first rotating block and the second rotating block, a slider slidably connected inside the body, a top rod fixedly connected to the upper surface of the slider, a push rod fixedly connected to the bottom surface of the slider, and an arc-shaped block fixedly connected to the left side of the positioning rod.

[0006] Through the above scheme, since the existing door closer drives the door to rotate and close immediately after the door is opened, but when carrying goods or frequent passage is required, the automatic rotation of the door driven by the door closer will hinder the passage, increase the passage burden, and reduce the flexibility and practicality of the door closer. When the first connecting rod rotates, the slider is moved under the action of the top rod, the push rod drives the positioning rod to automatically move up under the action of the arc block, and the position of the positioning rod is limited under the action of the first spring force, thereby automatically positioning and limiting the first connecting rod, avoiding automatic door rotation, providing convenience for pedestrians in the case of goods carrying or frequent passage, and improving the flexibility and practicality of the door closer.

[0007] Further, the right side surface of the sliding block is fixedly connected with equidistantly arranged second springs, and the other end of the second spring is fixedly connected with the inside of the body.

[0008] Through the above scheme, the second spring exerts a reaction force on the sliding block, so that the sliding block can drive the push rod to automatically move back.

[0009] Further, the front surface and the back surface of the positioning rod are fixedly connected with sliding plates, and the inside of the body is provided with a sliding groove, and the outer surfaces of the sliding plates are respectively connected with the body through the sliding groove.

[0010] Through the above scheme, the positioning rod is limited, so that the positioning rod always vertically rises and falls, improving the stability of the positioning rod.

[0011] Further, the bottom surface of the positioning rod is fixedly connected with a pull rod.

[0012] Through the above scheme, the pull rod can be used to pull the positioning rod down, thereby releasing the positioning of the positioning rod on the first connecting rod, and the door is automatically rotated.

[0013] Further, the right side surface of the top end of the positioning rod is an arc surface, and the surface layer of the arc surface of the positioning rod is a soft layer.

[0014] Through the above scheme, the contact position of the first connecting rod and the positioning rod is protected, avoiding damage caused by hard contact.

[0015] Further, the end of the first connecting rod away from the body is rotatably connected with a second connecting rod, the inside of the second connecting rod is screwedly connected with a lead screw, and the end of the lead screw away from the second connecting rod is rotatably connected with a mounting seat.

[0016] Through the above scheme, the first connecting rod, the second connecting rod, the lead screw and the mounting seat realize the effect of automatic door closing through mutual cooperation, and the length of the second connecting rod can be adjusted by rotating the second connecting rod, which is convenient for connecting the second connecting rod with the first connecting rod.

[0017] Further, the outer circumferential surface of the screw rod is threadedly connected with a nut.

[0018] Through the above scheme, the connection between the screw rod and the second connecting rod is reinforced by the nut, thereby improving the stability of the connection between the screw rod and the second connecting rod.

[0019] Further, the body is provided with mounting holes at both ends, and the mounting seat is provided with mounting holes in the interior.

[0020] Through the above scheme, the body can be mounted through the positioning holes on the body, and the mounting seat can be mounted through the positioning holes on the mounting seat.

[0021] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0022] The door closer convenient to position can automatically position and limit the door closer, avoid automatic rotation of the door, provide convenience for pedestrians in the case of goods carrying or frequent passage, improve the flexibility and practicality of the door closer, and solve the problem that automatic rotation of the door driven by the door closer will cause certain obstruction to passage and increase the burden of passage when carrying goods or frequent passage is required. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a whole three-dimensional structural diagram of the present application;

[0024] Figure 2 is a body structure diagram of the present application;

[0025] Figure 3 is a positioning rod structure diagram of the present application;

[0026] Figure 4 is a slider structure diagram of the present application.

[0027] IN THE DRAWINGS:

[0028] 1, body; 2, first connecting rod; 3, positioning rod; 4, first base; 5, first rotating block; 6, second base; 7, second rotating block; 8, telescopic rod; 9, first spring; 10, slider; 11, jacking rod; 12, push rod; 13, arc block; 14, second spring; 15, sliding plate; 16, sliding groove; 17, pull rod; 18, second connecting rod; 19, screw rod; 20, mounting seat; 21, nut. DETAILED DESCRIPTION

[0029] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the present application.

[0030] Please refer to Figure 1 , Figure 3 and Figure 4 , a door closer convenient to position in the embodiment includes a body 1, the top end of the body 1 is rotationally connected with a first connecting rod 2, the inside of the body 1 is provided with a positioning rod 3, the two sides of the positioning rod 3 are fixedly connected with a first base 4, the inside of each first base 4 is rotationally connected with a first rotating block 5, the inner wall of the body 1 is fixedly connected with two second bases 6, the inside of each second base 6 is rotationally connected with a second rotating block 7, the first rotating block 5 and the second rotating block 7 are fixedly connected with an extension rod 8 respectively, the first rotating block 5 and the second rotating block 7 are fixedly connected with a first spring 9 respectively, the inside of the body 1 is slidingly connected with a sliding block 10, the upper surface of the sliding block 10 is fixedly connected with a top rod 11, the bottom surface of the sliding block 10 is fixedly connected with a push rod 12, the left side surface of the positioning rod 3 is fixedly connected with an arc block 13.

[0031] Please refer to Figure 4 , the right side surface of the sliding block 10 is fixedly connected with equidistantly arranged second springs 14, the other end of each second spring 14 is fixedly connected with the inside of the body 1, the sliding block 10 is applied with a counterforce by the second springs 14, so that the sliding block 10 can drive the push rod 12 to automatically return.

[0032] Please refer to Figure 1 and Figure 3 , the front surface and the back surface of the positioning rod 3 are fixedly connected with sliding plates 15, the inside of the body 1 is provided with sliding grooves 16, the outer surfaces of the sliding plates 15 are slidingly connected with the body 1 through the sliding grooves 16 respectively, the positioning rod 3 is limited, so that the positioning rod 3 always vertically rises and falls, and the stability of the positioning rod 3 is improved.

[0033] Please refer to Figure 2 , Figure 3 and Figure 4 , the bottom surface of the positioning rod 3 is fixedly connected with a pull rod 17, the positioning rod 3 can be pulled down by the pull rod 17, so that the positioning of the positioning rod 3 on the first connecting rod 2 is released, and the door is automatically returned.

[0034] Please refer to Figure 1 and Figure 3 , the right side surface of the top end of the positioning rod 3 is an arc surface, the surface layer of the arc surface of the positioning rod 3 is a soft layer, the contact position of the first connecting rod 2 and the positioning rod 3 is protected, and damage of the first connecting rod 2 and the positioning rod 3 caused by hard contact is avoided.

[0035] Please refer to Figure 1 and Figure 2 , the first connecting rod 2 is rotatably connected with the second connecting rod 18 at one end away from the body 1, the second connecting rod 18 is internally threadedly connected with the lead screw 19, the lead screw 19 is rotatably connected with the mounting seat 20 at one end away from the second connecting rod 18, and the automatic door closing effect is realized through the cooperation of the first connecting rod 2, the second connecting rod 18, the lead screw 19 and the mounting seat 20. The length of the second connecting rod 18 can be adjusted by rotating the second connecting rod 18, and the second connecting rod 18 and the first connecting rod 2 are conveniently connected.

[0036] Please refer to Figure 1 and Figure 2 , the outer circumferential surface of the lead screw 19 is threadedly connected with the nut 21, the connection between the lead screw 19 and the second connecting rod 18 is reinforced through the nut 21, and the stability of the connection between the lead screw 19 and the second connecting rod 18 is improved.

[0037] Please refer to Figure 1 and Figure 2 , mounting holes are formed at both ends of the body 1, and mounting holes are formed in the interior of the mounting seat 20. The body 1 can be installed through the positioning holes on the body 1, and the mounting seat 20 can be installed through the positioning holes on the mounting seat 20.

[0038] The door closer convenient to position in the embodiment can move the sliding block 10 under the action of the jacking rod 11 when the first connecting rod 2 rotates, drive the push rod 12 to automatically move up under the action of the arc-shaped block 13, and limit the position of the positioning rod 3 under the action of the first spring 9. The door closer can be automatically positioned and limited, the door is prevented from automatically rotating back, the convenience of pedestrians is provided in the case of goods carrying or frequent passing, the flexibility and practicality of the door closer are improved, and the problem that the door is driven to automatically rotate back by the door closer when carrying goods or frequent passing, which causes certain obstruction to passing and increases the burden of passing, is solved.

[0039] It should be noted that the first spring 9 is sleeved on the outside of the telescopic rod 8.

[0040] The working principle of the above embodiment is as follows:

[0041] The door closer body 1 can be installed on the door, the mounting seat 20 is installed on the door frame, when the door is opened, the first connecting rod 2 is driven by the body 1 to rotate counterclockwise, when the door is about to be fully opened, the first connecting rod 2 contacts the top rod 11, when the door is continuously rotated to drive the first connecting rod 2 to rotate, the first connecting rod 2 drives the top rod 11 to move, the top rod 11 drives the push rod 12 to move through the sliding block 10, the push rod 12 drives the positioning rod 3 to move up under the action of the arc block 13, when the positioning rod 3 moves up, the first rotating block 5 and the second rotating block 7 are driven to move each other under the action of the telescopic rod 8, and the first spring 9 is extruded, when the positioning rod 3 moves up to a certain height, the first rotating block 5 is lifted to the upper side of the second rotating block 7, at this time, the first spring 9 is no longer extruded, and the positioning rod 3 is driven to move up to the top end by the elastic force of the first spring 9, and then the positioning rod 3 limits the rotation of the first connecting rod 2, thereby automatically positioning the door, when the door is fully opened, the door can be automatically positioned, which provides convenience for carrying and passing, after the passing is completed, the positioning rod 3 is driven to move down by pulling the pull rod 17, and the positioning of the first connecting rod 2 is released, so that the door is automatically closed.

[0042] It is to be understood that the terminology used herein such as first and second, and the like, is merely for distinguishing one entity or action from another entity or action, without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0043] While the embodiments of the application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A door closer for ease of positioning comprising a body (1) characterised in that: The top end of the body (1) is rotatably connected with a first connecting rod (2), the body (1) is internally provided with a positioning rod (3), the both sides of the positioning rod (3) are fixedly connected with first bases (4), the inside of each first base (4) is rotatably connected with a first rotating block (5), the inner wall of the body (1) is fixedly connected with two second bases (6), the inside of each second base (6) is rotatably connected with a second rotating block (7), the first rotating block (5) and the second rotating block (7) are fixedly connected with telescopic rods (8) respectively, the first rotating block (5) and the second rotating block (7) are fixedly connected with first springs (9) respectively, the inside of the body (1) is slidably connected with a sliding block (10), the upper surface of the sliding block (10) is fixedly connected with a top rod (11), the bottom surface of the sliding block (10) is fixedly connected with a push rod (12), the left side surface of the positioning rod (3) is fixedly connected with an arc-shaped block (13).

2. A door closer for ease of positioning according to claim 1 wherein: The right side surface of the sliding block (10) is fixedly connected with equidistantly-arranged second springs (14), the other ends of the second springs (14) are fixedly connected with the inside of the body (1).

3. A door closer for ease of positioning according to claim 1, wherein: The front surface and the back surface of the positioning rod (3) are fixedly connected with sliding plates (15), the inside of the body (1) is provided with sliding grooves (16), the outer surfaces of the sliding plates (15) are slidably connected with the body (1) through the sliding grooves (16) respectively.

4. A door closer for ease of positioning according to claim 1, wherein: The bottom surface of the positioning rod (3) is fixedly connected with a pull rod (17).

5. A door closer for ease of positioning according to claim 1, characterised in that: The right side surface of the top end of the positioning rod (3) is an arc surface, the surface layer of the arc surface of the positioning rod (3) is a soft layer.

6. A door closer for ease of positioning according to claim 1, wherein: The end, away from the body (1), of the first connecting rod (2) is rotatably connected with a second connecting rod (18), the inside of the second connecting rod (18) is threadedly connected with a lead screw (19), the end, away from the second connecting rod (18), of the lead screw (19) is rotatably connected with a mounting base (20).

7. A door closer for ease of positioning according to claim 6 wherein: The outer circumferential surface of the lead screw (19) is threadedly connected with a nut (21).

8. A door closer for ease of positioning according to claim 6 wherein: Both ends of the body (1) are provided with mounting holes, the inside of the mounting base (20) is provided with a mounting hole.

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