CN219754340U - Double door type door closer - Google Patents

Abstract

The utility model discloses a double door type door closer which comprises a first guide rail and a second guide rail which are fixed on a door frame, wherein the first guide rail and the second guide rail are respectively connected with a main door closer and an auxiliary door closer through rocker arms, a first sliding block is arranged in the first guide rail in a sliding manner, a second sliding block is arranged in the second guide rail in a sliding manner, a positioning connecting rod is arranged at one end, close to the second guide rail, of the first sliding block, a driving pipe is arranged at one end, close to the first guide rail, of the second guide rail, a cis-position device is arranged at one end, close to the second guide rail, of the first guide rail, the cis-position device comprises a fixed seat, a buffer block, a movable buckle sliding in the buffer block and a sleeve rod sliding in the fixed seat, a unidirectional channel is arranged in the movable buckle, the unidirectional channel is arranged at a first position and a second position, the inner diameter of the unidirectional channel is larger than the outer diameter of the positioning connecting rod, and the inner diameter of the unidirectional channel is smaller than the outer diameter of the positioning connecting rod. The double door type door closer realizes the sequential opening and closing of the door leaves.

Description

Double door type door closer

Technical Field

The utility model relates to the technical field of door closers, in particular to a double door type door closer.

Background

Door closers have been commonly used in various areas of society as an essential facility device for modern buildings. Along with the continuous development and progress of society, the national requirements on fire protection and security are higher and higher, and a plurality of access doors and fire doors are required to be provided with door closers; part fire door and access door etc. are the structure of two doors, exist two door leafs promptly, in order to guarantee the effect such as fire prevention when closing the door, often protruding the overlap in the edge of one of them door leaf (vice door), when another (main door) door leaf closes the door with overlap laminating, but this just leads to the door closing order between main door and the vice door to have the sequential requirement, if the vice door is closed behind the main door, leads to the vice door unable to close tightly, and then can't prevent the intensity of a fire spreading and the flue gas diffusion, can lead to serious result when conflagration. Accordingly, improvements are needed.

Disclosure of Invention

The utility model aims to provide a double door closer for solving the defects in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model discloses a double door type door closer, which comprises a first guide rail and a second guide rail fixed on a door frame, wherein the first guide rail and the second guide rail are respectively connected with a main door closer and an auxiliary door closer through rocker arms, a first sliding block is arranged in the first guide rail in a sliding way, a second sliding block is arranged in the second guide rail in a sliding way, one end, close to the second guide rail, of the first sliding block is provided with a positioning connecting rod, one end, close to the first guide rail, of the second guide rail is provided with a driving pipe, one end, close to the second guide rail, of the first guide rail is provided with a cis-position device, the cis-position device comprises a fixed seat, a buffer block, a movable buckle sliding in the buffer block and a sleeve rod sliding in the fixed seat, a unidirectional channel is arranged in the movable buckle, the unidirectional channel is provided with a first position and a second position, in the first position, the inner diameter of the unidirectional channel is larger than the outer diameter of the positioning connecting rod, the positioning connecting rod slides in the fixed seat, the buffer block, the movable buckle, the sleeve rod and the driving pipe, and in the second position, the inner diameter of the unidirectional channel is smaller than the outer diameter of the positioning connecting rod.

Further, in the double door closer, one end of the fixing seat is provided with a first installation portion, the first installation portion is embedded in and fixed to the first guide rail, a first boss and a second boss are protruding to extend from the top surface of the fixing seat, and the buffer block is clamped on the side surface, close to the second boss, of the first boss, and a first spring is arranged between the buffer block and the second boss.

Further, in the double door closer, an installation cavity for accommodating the movable buckle and the second boss is arranged in the buffer block, guide wheels are respectively arranged on two sides of the installation cavity in the axial direction, the movable buckle comprises two movable blocks which are oppositely arranged, conical surfaces corresponding to the guide wheels are arranged on the outer side surfaces of the movable blocks, arc-shaped grooves are formed on the inner side surfaces of the movable blocks, and the two arc-shaped grooves form the unidirectional channel.

Further, in the double door closer, a second spring is arranged between one end of the movable buckle, which is away from the guide wheel, and the corresponding inner wall of the installation cavity.

Further, in the double door closer, one end of the movable buckle, which is close to the second spring, is provided with an annular fixing buckle, two sides of the fixing buckle are respectively protruded with a guide part, and a fixing groove corresponding to the fixing buckle and the guide part is formed in a corresponding end part of the movable buckle.

Further, in the double door closer, the loop bar is of a tubular structure, one end of the loop bar sequentially penetrates through the second boss, the first spring, the side wall corresponding to the mounting cavity and the second boss, the loop bar is arranged in the mounting cavity through the first clamp spring, and a third spring is arranged on one side, deviating from the first boss, of the loop bar and the second boss through the second clamp spring.

Further, in the double door closer, an external thread is provided at one end of the loop bar close to the second guide rail, and an adjusting nut corresponding to the external thread is provided at one end of the driving tube close to the loop bar.

Further, in the double door closer, the external thread is provided with a back locking nut.

Compared with the prior art, the double door type door closer disclosed by the utility model has a simple structure, can realize sequential door closing between door leaves, is arranged at one end of the first guide rail, can be regarded as a part of the guide rail of the door closer, and is convenient for integral design.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.

Fig. 1 is a schematic view showing a structure of a double door closer according to an embodiment of the present utility model.

Fig. 2 is a side view of a double door closer according to an embodiment of the present utility model.

Fig. 3 is an exploded view of a double door closer according to an embodiment of the present utility model.

Fig. 4 is an exploded view of the fixing base, the buffer block and the loop bar according to an embodiment of the present utility model.

Fig. 5 is a schematic structural diagram of a fixing base according to an embodiment of the utility model.

Fig. 6 is an exploded view of the movable buckle and the buffer block according to an embodiment of the present utility model.

Fig. 7 is an exploded view of the first clip spring, the second clip spring and the loop bar according to an embodiment of the present utility model.

Fig. 8 is a schematic structural diagram of a movable buckle according to an embodiment of the utility model.

Fig. 9 is a schematic view of a loop bar according to an embodiment of the present utility model.

Fig. 10 is a schematic view of a driving tube according to an embodiment of the utility model.

Detailed Description

The following detailed description of the technical solutions according to the embodiments of the present utility model will be given with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, 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 to 10, a double door closer includes a first guide rail 1 and a second guide rail 2 fixed to a door frame, the first guide rail 1 and the second guide rail 2 are connected to a main door closer and an auxiliary door closer through rocker arms, a first sliding block 11 is slidably disposed in the first guide rail 1, a second sliding block 21 is slidably disposed in the second guide rail 2, a positioning connecting rod 3 is disposed at one end of the first sliding block 11 near the second guide rail 2, a driving tube 4 is disposed at one end of the second guide rail 2 near the first guide rail 1, a cis-position device is disposed at one end of the first guide rail 1 near the second guide rail 2, the cis-position device includes a fixed seat 5, a buffer block 6, a movable buckle 7 sliding in the buffer block 6 and a sleeve rod 8 sliding in the fixed seat 5, a unidirectional channel is disposed in the movable buckle 7, and the unidirectional channel has a first position and a second position, the inner diameter of the unidirectional channel is larger than the outer diameter of the positioning connecting rod 3, the positioning connecting rod 3 slides in the fixed seat 5, the buffer block 6, the movable buckle 7, the sleeve rod 8 and the driving tube 4 are disposed at one end of the second position near the second guide rail 2, and the outer diameter of the unidirectional channel is smaller than the positioning connecting rod 3.

In the technical scheme, the rocker arm, the main door closer and the auxiliary door closer are all of the prior art, the first guide rail, the first sliding block, the second guide rail and the second sliding block are of conventional structures, the positioning connecting rod is fixed on the first sliding block in conventional manners such as welding, threaded connection and interference fit, wherein decorative cover rings are respectively arranged on the surfaces of the first guide rail and the second guide rail through buckles, end covers are respectively arranged at two ends of the first guide rail and the second guide rail, the corresponding end covers are replaced by the fixed seats, and through holes for accommodating sliding of the driving pipe are arranged in the second end covers; when the auxiliary door is closed, the second sliding block pushes the movable buckle to a first position through the driving pipe, the movable buckle and the buffer block are relatively fixed, the first guide rail can slide at will, the main door connected to the first guide rail can be opened and closed at will, after the main door is opened, the auxiliary door is also opened, the movable buckle is positioned at a second position, and when the main door is closed before the auxiliary door, the movable buckle blocks the sliding of the first sliding block through the positioning connecting rod, so that the continuous closing of the main door is limited, and after the auxiliary door is closed, the movable buckle is pushed to the first position from new, and the main door is closed; the double door type door closer is simple in structure, can achieve sequential door closing between door leaves, is arranged at one end of the first guide rail, can be regarded as a part of the guide rail of the door closer, and is convenient for integral design.

As shown in fig. 1 to 4, a first mounting portion 51 is disposed at one end of the fixing base 5, the first mounting portion 51 is embedded in and fixed to the first guide rail 1, a first boss 52 and a second boss 53 protrude from the top surface of the fixing base 5, the buffer block 6 is clamped on a side surface of the first boss 52, which is close to the second boss 53, and a first spring 9 is disposed between the buffer block and the second boss 53.

In this technical scheme, the corresponding end cover of first guide rail is replaced to first installation department to install fixing base and first guide rail as an organic wholely, all be provided with in first installation department, first boss and the second boss and hold location connecting rod or the gliding through-hole of loop bar, when the movable buckle is in the first position, with buffer block relatively fixed, first spring plays the cushioning effect when the location connecting rod supports in the movable buckle, avoids rigid collision, prolongs the life of first guide rail.

As shown in fig. 1 to 6, an installation cavity for accommodating the movable buckle 7 and the second boss 53 is formed in the buffer block 6, guide wheels 61 are respectively arranged on two axial sides of the installation cavity, the movable buckle 7 comprises two movable blocks which are oppositely arranged, conical surfaces 71 corresponding to the guide wheels 61 are arranged on the outer side surfaces of the movable blocks, arc-shaped grooves 72 are formed on the inner side surfaces of the movable blocks, and a unidirectional channel is formed between the two arc-shaped grooves.

According to the technical scheme, the buffer block is of a cuboid structure, through grooves are formed in the side faces of the buffer block and serve as mounting cavities for accommodating movable buckles, mounting windows are formed in the top face and the bottom face of the buffer block respectively for mounting conveniently, a reinforcing beam is reserved in each mounting window for guaranteeing the fixed strength of the guide wheel, through holes communicated with the mounting cavities are formed in the two end faces of the buffer block respectively and used for positioning sliding of the connecting rod and the loop bar, positioning grooves are concavely formed in one side of the buffer block, which is close to the first spring, the end portions of the first spring are embedded into the positioning grooves, offset and the like, the guide wheel is of a hollow roller type structure, corresponding two sides of the mounting cavities are rotatably arranged through positioning pins, when the conical surface of the outer side face of the movable block slides along the guide wheel, the center distance between the two arc grooves is changed, so that one end of the one-way channel is in contact with the guide wheel when the movable buckle is in a first position, the smaller end of the conical surface is in contact with the guide wheel, the center distance between the two end faces of the guide wheel is in a largest, the one-way sliding along the width of the guide wheel is in a sliding mode, and the main door connected to the first guide rail can be randomly opened and closed, and the movable buckle is in a second position, and the center distance is in a larger position along the width of the guide wheel is in contact with the center distance of the curve; in order to prevent the movable buckle from being separated from the guide wheels or passing through the guide wheels, the front end and the rear end of the conical surface are respectively provided with a first limiting plane and a second limiting plane, when the movable buckle is at a first position, the two first limiting planes are still positioned between the two guide wheels, so that the movable buckle can conveniently and rapidly enter between the two guide wheels, and when the movable buckle is at a second position, the distance between the two second limiting planes is greater than the gap between the two guide wheels, and the movable buckle is prevented from passing through the guide wheels.

As an example, referring to fig. 4, a second spring 10 is arranged between the end of the movable catch 7 facing away from the guide wheel 61 and the corresponding inner wall of the mounting cavity.

In the technical scheme, under the condition that the loop bar is not contacted with the movable buckle, the movable buckle is positioned at a second position under the action of the second spring, the second sliding block pushes the driving pipe in the closing process of the auxiliary door, the driving pipe pushes the loop bar and extrudes the movable buckle, the movable buckle extrudes the second spring and slides to the first position, and after the auxiliary door is opened, the second spring releases elastic potential energy to push the movable buckle to the second position again.

As shown in fig. 6 and 8, an annular fixing buckle 20 is disposed at one end of the movable buckle 7 near the second spring 10, guide portions 201 protrude from two sides of the fixing buckle 20, and fixing grooves corresponding to the fixing buckle 20 and the guide portions 201 are disposed at corresponding ends of the movable buckle 7.

In this technical scheme, the fixed slot includes the guide way that corresponds with the guide part, and movable buckle opens and shuts the in-process (reciprocate between first position and second position), and the movable block slides along the guide part, guarantees that two movable blocks are in relative state all the time, avoids the movable block to rotate the unable opening and shutting that causes etc. the outer end of doing of guide part is provided with the portion of bending, restricts the biggest degree of opening and shutting of movable buckle, avoids the movable block to drop.

As shown in fig. 1 to 7, the loop bar 8 is of a tubular structure, and one end of the loop bar 8 sequentially penetrates through the second boss 53, the first spring 9, the corresponding side wall of the mounting cavity and the second boss 53, and then is arranged in the mounting cavity through the first clamp spring 30, and a third spring 50 is arranged on one side, away from the first boss 52, of the loop bar 8 and the second boss 53 through the second clamp spring 40.

In the technical scheme, annular grooves corresponding to a first clamp spring and a second clamp spring are formed in the surface of a loop bar, when in actual installation, a buffer block and the first spring are firstly placed in a fixed seat, then the second clamp spring is embedded in the loop bar, a third spring is sleeved on the loop bar, then the end part corresponding to the loop bar penetrates through a second boss, the first spring, the side wall corresponding to the buffer block and the first boss and then stretches into an installation cavity, and then the first clamp spring is clamped into the corresponding annular groove; when the driving pipe does not contact the loop bar, the loop bar is not contacted with the movable buckle under the action of the third spring, the locking function of the movable buckle is prevented from being influenced, when the driving pipe extrudes and drives the loop bar to slide, the end part corresponding to the loop bar moves towards the movable buckle and pushes the movable buckle to slide, so that the conduction function of the movable buckle is realized, the loop bar is of a hollow tubular structure, and the positioning connecting rod slidably penetrates through the loop bar, so that the interference of the movement of the second sliding block is avoided.

As shown in fig. 7, 9 and 10, for example, the end of the sleeve rod 8 near the second guide rail 2 is provided with external threads, and the end of the driving tube 4 near the sleeve rod 8 is provided with an adjusting nut 41 corresponding to the external threads.

According to the technical scheme, the adjusting nut is welded at the end part of the driving pipe and is connected with the sleeve rod through threads, the position of the adjusting nut is adjusted, and therefore the relative position between the driving pipe and the second sliding block can be adjusted, and accordingly the door closing angle of the auxiliary door and the locking/conducting linkage of the cis-position device are controlled, namely the auxiliary door is closed to a set angle, the second sliding block is in contact with the driving pipe and drives the driving pipe to drive the sleeve rod to extrude the movable buckle to be conducted, and the sequential closing of the main door and the auxiliary door is achieved.

Illustratively, referring to FIG. 7, the external threads are provided with a counter lock nut 60.

In the technical scheme, the back locking nut and the adjusting nut are interlocked, so that the position deviation of the adjusting nut caused by repeated impact and the like is avoided.

The working process of the double door closer is as follows: the auxiliary door is not opened or is in a state before the main door is closed, the second sliding block always acts on the driving pipe, the driving pipe extrudes the movable buckle to the first position through the loop bar, the center distance between the two arc-shaped grooves is maximum, the positioning connecting rod is allowed to freely slide, and the main door connected with the first guide rail can be freely opened and closed; after the main door and the auxiliary door are both opened, the second sliding block and the driving pipe are separated, the loop bar is contacted with the driving pipe and drives the loop bar to extrude the movable buckle to the first position under the action of the third spring, the positioning connecting rod continuously slides under the action of the second spring, the main door is closed, and the sequential closing of the main door and the auxiliary door is realized; after the auxiliary door is opened, the auxiliary door is not influenced, although the second spring releases elastic potential energy and pushes the movable buckle to the second position, when the first sliding block drives the positioning connecting rod to slide, the positioning connecting rod drives the movable buckle to move to one side of the first position together by using friction force, free movement of the positioning connecting rod is realized, after the positioning connecting rod and the movable buckle are separated, the second spring releases elastic potential energy and pushes the movable buckle to the second position again, in the closing process of the main door, the tail end of the positioning connecting rod abuts against the movable buckle, positioning stop of the main door is realized, the auxiliary door is waited for closing the position of the main door positioning stop, and the positioning connecting rod with different lengths can be replaced to adjust so as to adapt to the requirements of different door leaves.

In summary, the double door closer disclosed by the utility model has a simple structure, can realize sequential door closing between door leaves, and is convenient for integral design because the cis-position device is arranged at one end of the first guide rail and can be regarded as a part of the guide rail of the door closer.

It is noted that relational terms such as first and second, and the like are used solely to distinguish 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 variation 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 may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely illustrative of the embodiments of this utility model and it will be appreciated by those skilled in the art that variations and modifications may be made without departing from the principles of the utility model, and it is intended to cover all modifications and variations as fall within the scope of the utility model.

Claims (8)

1. The utility model provides a two door-opening door closer, its characterized in that, including being fixed in the first guide rail and the second guide rail of door frame, first guide rail and second guide rail are connected in main door closer and vice door closer through the rocking arm respectively, slide in the first guide rail and be provided with first slider, slide in the second guide rail and be provided with the second slider, the one end that first slider is close to the second guide rail is provided with the location connecting rod, the one end that the second guide rail is close to first guide rail is provided with the drive tube, the one end that the first guide rail is close to the second guide rail is provided with the cis-position ware, the cis-position ware includes fixing base, buffer block, slides the movable buckle in the buffer block and slides the loop bar that sets up in the fixing base, the built-in unidirectional passage of movable buckle, and have first position and second position, in the first position, the internal diameter of unidirectional passage is greater than the external diameter of location connecting rod, and location connecting rod slides in fixing base, buffer block, movable buckle, loop bar and drive tube, in the second position, the internal diameter of unidirectional passage is less than the external diameter of location connecting rod.

2. The double door closer as claimed in claim 1, wherein: one end of fixing base is provided with first installation department, first installation department embedding is fixed in first guide rail, the top surface of fixing base is protruding to stretch has first boss and second boss, the buffer block card is located the side that first boss is close to the second boss to be provided with first spring with between the second boss.

3. The double door closer as claimed in claim 2, wherein: the buffer block is internally provided with an installation cavity for accommodating the movable buckle and the second boss, guide wheels are respectively arranged on two sides of the installation cavity in the axial direction, the movable buckle comprises two movable blocks which are oppositely arranged, the outer side faces of the movable blocks are provided with conical surfaces corresponding to the guide wheels, the inner side faces of the movable blocks are provided with arc-shaped grooves, and the two arc-shaped grooves form the unidirectional channel.

4. A double door closer according to claim 3, wherein: and a second spring is arranged between one end of the movable buckle, which is away from the guide wheel, and the corresponding inner wall of the installation cavity.

5. A double door closer according to claim 3, wherein: the movable buckle is provided with annular fixed knot near one end of second spring, the both sides of fixed knot are protruding to stretch respectively and are had the guide part, the corresponding tip of movable buckle is provided with the fixed slot that corresponds with fixed knot and guide part.

6. The double door closer as claimed in claim 2, wherein: the loop bar is of a tubular structure, one end of the loop bar sequentially penetrates through the second boss, the first spring, the side wall corresponding to the mounting cavity and the second boss, the loop bar is arranged in the mounting cavity through the first clamp spring, and a third spring is arranged on one side, deviating from the first boss, of the loop bar and the second boss through the second clamp spring.

7. The double door closer as claimed in claim 6, wherein: the end of the loop bar, which is close to the second guide rail, is provided with external threads, and the end of the driving pipe, which is close to the loop bar, is provided with an adjusting nut corresponding to the external threads.

8. The double door closer of claim 7 wherein: and the external thread is provided with a back locking nut.