CN113622776A - Door closer - Google Patents
Door closer Download PDFInfo
- Publication number
- CN113622776A CN113622776A CN202110859328.9A CN202110859328A CN113622776A CN 113622776 A CN113622776 A CN 113622776A CN 202110859328 A CN202110859328 A CN 202110859328A CN 113622776 A CN113622776 A CN 113622776A
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- adjusting
- damping
- piece
- door
- rotating shaft
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- 238000013016 damping Methods 0.000 claims abstract description 108
- 230000009471 action Effects 0.000 claims description 16
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 230000003139 buffering effect Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 238000005381 potential energy Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
- E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
- E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
- E05F1/14—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with double-acting springs, e.g. for closing and opening or checking and closing no material
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
- E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
- E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
- E05F1/1041—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis
- E05F1/105—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a compression spring
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Type of wing
- E05Y2900/132—Doors
Landscapes
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
The invention discloses a door closer which comprises a sleeve, an adjusting component, a first damping component and a second damping component, wherein the first damping component and the second damping component are arranged in the sleeve, the adjusting component comprises a first adjusting part and a second adjusting part, the first damping component comprises a first elastic part, one end of the first elastic part is connected with the surface of the first adjusting part, the first adjusting part is fixed on a rotating shaft, the first elastic part can rotate around the rotating shaft, the second damping component comprises a damping part, one end of the damping part is hinged with the second adjusting part, the second adjusting part is fixed on the rotating shaft, and the damping part and the first elastic part can simultaneously rotate around the rotating shaft. The invention can provide effective buffer to enable the rotating shaft door to be closed gently, can also adjust the speed of different processes of opening and closing, and is convenient to use.
Description
Technical Field
The invention relates to a switch with a braking device, in particular to a door closer.
Background
Traditional pivot door does not take the door closer, and unable automatic closing door needs the user to close the door manually, uses inconveniently, and if the user closes the door strength too big moreover, still is pressed from both sides easily and hinders the finger, therefore traditional pivot door is neither convenient nor safe.
The existing rotating shaft door is provided with a door closer, and the door closer is used for automatically closing the rotating shaft door. However, the existing door closer usually uses a rack and pinion or a hydraulic device to solve the problem of automatically closing the rotating shaft door, for example, patent CN201621120266.0 discloses a hydraulic door closer with electric assist, in which a gear and a rack cooperate with a driving motor to drive the rotating shaft door to close, but this door closer can make the rotating shaft door close faster, has no buffer, is inconvenient to use and also easily causes a potential safety hazard, and the rack and pinion is not only easy to fail, but also has excellent smoothness.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a door closer, which can provide effective buffering, enable a rotating shaft door to be closed gently, and adjust the speed of different processes of opening and closing the door.
In order to solve the technical problem, the invention provides a door closer which is arranged on a rotating shaft of a rotating shaft door and comprises a sleeve, an adjusting component, a first damping component and a second damping component, wherein the first damping component and the second damping component are arranged in the sleeve, and the sleeve is fixed on the rotating shaft door and can swing along with the rotating shaft door.
The adjusting component comprises a first adjusting piece and a second adjusting piece, and the adjusting component is fixed on the rotating shaft.
The first damping assembly comprises a first elastic piece, one end of the first elastic piece is abutted against the surface of the first adjusting piece, and the first elastic piece can rotate around the first adjusting piece and respectively compresses and rebounds along the surface of the first adjusting piece along with the action of opening and closing the door.
The second damping subassembly includes the damping piece, the expansion end of damping piece with the second regulating part is articulated, the second regulating part is fixed in the pivot, the damping piece can be compressed and produce the damping force.
The first elastic piece and the damping piece can simultaneously rotate around the adjusting assembly along with the rotating shaft door, and the damping piece can be compressed along with the rebound of the first elastic piece.
The first adjusting piece and the second adjusting piece are fixedly connected, and the first adjusting piece is vertically and symmetrically distributed on the upper portion and the lower portion of the second adjusting piece.
The telescopic one end is equipped with puts the shaft hole, the pivot passes put the shaft hole, adjusting part with pivot fixed connection is located put in the shaft hole.
The adjusting assembly further comprises a speed adjusting lug, the speed adjusting lug is arranged on one side, far away from the first damping assembly, of the adjusting assembly, arc-shaped surfaces are symmetrically arranged on two sides of the speed adjusting lug, the speed adjusting lug protrudes out of the arc-shaped surfaces, and one end of each arc-shaped surface is connected with the speed adjusting lug.
The door closer further comprises a speed regulation assembly, the speed regulation assembly comprises a front cover, a second elastic piece and a speed regulation top block, the front cover is located at the front end of the sleeve, the second elastic piece and the speed regulation top block are located at one side of the sleeve far away from the first damping assembly and the second damping assembly, the second elastic piece is located between the front cover and the speed regulation top block, the speed regulation top block is close to the speed regulation bump, and the second elastic piece can enable the end face of the speed regulation top block to slide on the surface of the speed regulation bump and the arc-shaped face.
The two ends of the first adjusting piece are symmetrically provided with first convex blocks left and right, a reset surface is further arranged between the first convex blocks left and right, and the distance from the middle part of the reset surface to the axis of the first adjusting piece is smaller than the distance from the surface of the first convex block to the axis of the first adjusting piece.
One end of the arc-shaped surface, which is far away from the speed regulation lug, is connected with the first lug.
The second adjusting piece is provided with a second lug, and the second lug protrudes out of the surface of the resetting surface and is connected with the movable end of the damping piece.
The left side and the right side of the second bump are both provided with limiting surfaces, one end of each limiting surface is connected with the second bump, and the other end of each limiting surface inclines towards the inside of the adjusting assembly and the direction far away from the second bump.
The first damping assembly further comprises a cam top block, the first elastic piece is in contact with the first adjusting piece through the cam top block, and the end face of the cam top block can slide between the first bump and the resetting face.
The first elastic member is capable of compressing and rebounding within the sleeve.
The second damping assembly further comprises a connecting rod, a piston rod and a piston cylinder, one end of the connecting rod is hinged to the piston rod, the other end of the connecting rod is hinged to the second protruding block, the piston rod is located in the piston cylinder, the connecting rod can slide and swing in the cam ejecting block, the connecting rod can rotate around the hinge point of the connecting rod and the second protruding block, the hinge point of the connecting rod and the second protruding block swing between the two limiting faces, and the two limiting faces can limit the swing angle of the connecting rod.
The sleeve further comprises a bottom cover, an adjusting rod, an adjusting cavity and an adjusting channel, the bottom cover is connected with the tail of the sleeve, one end of the piston cylinder is abutted to the bottom cover, and the adjusting cavity is located at one end, close to the bottom cover, of the piston cylinder.
One end of the adjusting cavity is communicated with the rear portion of the piston cylinder, an adjusting hole is formed in the side portion of the adjusting cavity, the adjusting cavity can be communicated with the front portion of the piston cylinder through the adjusting hole, the adjusting rod is inserted into the adjusting cavity in a sealing mode, and the adjusting rod can control the opening or closing of the adjusting hole.
The cam ejector block is close to one end of the second adjusting piece is provided with an avoiding hole, the avoiding hole is conical, the avoiding hole is close to the diameter of one end of the second adjusting piece is larger than the diameter of one end of the first elastic piece, and the avoiding hole is used for avoiding the second adjusting piece and the connecting rod.
The implementation of the invention has the following beneficial effects:
the door closer is provided with a first adjusting piece, a second adjusting piece, a first elastic piece and a damping piece, wherein the first adjusting piece is abutted against the first elastic piece, and the second adjusting piece is hinged with the damping piece. When the door is opened, the rotating shaft door drives the first elastic piece to rotate, the first elastic piece slides to a high position from a low position of the first adjusting piece, the first elastic piece is compressed to generate resistance under the action of the first adjusting piece, and the damping piece is reset to generate no resistance under the action of the second adjusting piece, so that the first elastic piece provides elastic buffering for the action of opening the door and stores energy; when the door is closed, the first elastic piece slides from the high position to the low position of the first adjusting piece, the rotating shaft door can automatically rotate and reset in the process of converting elastic potential energy into kinetic energy, so that the door closing action is formed, the damping piece is compressed, so that resistance is generated, the elastic buffer for the door closing action is formed, and the door closing process is gentle and safe.
The door closer is also provided with a speed regulation lug and a speed regulation assembly, arc-shaped surfaces are symmetrically arranged on two sides in the speed regulation lug, a second elastic part and a speed regulation top block are arranged in the speed regulation assembly, when the door is opened, the second elastic part enables the speed regulation top block to abut against the speed regulation lug and gradually transit to the arc-shaped surfaces, and at the moment, the friction force is small, so that the door opening speed can be accelerated, and a user can conveniently and quickly open the door; when closing the door, the speed governing kicking block supports on the first lug, and the speed of closing the door is slower, and convenience of customers has enough time to pass through, afterwards the speed governing kicking block slides on the arcwall face, makes the speed of closing the door accelerate to slide at last to realize slowly closing when the speed governing lug, avoid the pivot door dynamics of closing the door is too big. Therefore, the invention can control the speed of different processes of opening and closing the door, and has the advantage of convenient use.
Drawings
FIG. 1 is a schematic view of the door closer of the present invention;
FIG. 2 is a schematic structural view of the adjustment assembly of the present invention;
fig. 3 is a schematic structural view of the door closer of the present invention when the revolving shaft door is in a closed state;
fig. 4 is a schematic structural view of the door closer of the present invention when the revolving shaft door is at an opening limit angle;
FIG. 5 is a schematic view of the governor assembly of the present invention with the spindle door in a closed position;
FIG. 6 is a schematic view of the governor assembly of the present invention with the spindle door in an opening motion;
FIG. 7 is a schematic view of the governor assembly of the present invention with the spindle door at the opening limit angle;
FIG. 8 is a schematic view of the construction of the adjustment stem and the adjustment chamber of the present invention;
fig. 9 is a schematic view of the door closer of the present invention on a revolving shaft door.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings. It is only noted that the invention is intended to be limited to the specific forms set forth herein, including any reference to the drawings, as well as any other specific forms of embodiments of the invention.
Referring to fig. 1, 2 and 9, an embodiment of the present invention discloses a door closer, which is mounted on a rotating shaft 6 of a rotating shaft door 5, and specifically includes a sleeve 4, an adjusting assembly 1, a first damping assembly 2 and a second damping assembly 3, wherein the first damping assembly 2 and the second damping assembly 3 are mounted in the sleeve 4, the sleeve 4 is vertically connected with the rotating shaft 6, and the sleeve 4 is fixed on the rotating shaft door 5 and can swing along with the rotating shaft door 5. The adjusting component 1 comprises a first adjusting part 11 and a second adjusting part 12, and the adjusting component 1 is fixed on the rotating shaft 6 and is a static part. The first damping assembly 2 includes a first elastic member 21, and preferably, the first adjusting member 11 and the second adjusting member 12 are a cam, a crankshaft, or the like capable of generating a reciprocating motion of an object, and further, the first adjusting member 11 may be a cam, and the second adjusting member 12 may be a crankshaft. One end of the first elastic member 21 abuts against a surface of the first adjusting member 11, the first adjusting member 11 is fixed on the rotating shaft 6, the first adjusting member 11 is fixedly connected with the rotating shaft 6, so that when the rotating shaft door 5 rotates, the first elastic member 21 located in the sleeve 4 can rotate around the rotating shaft 6 along with the rotation of the rotating shaft door 5 and compress and rebound along the surface of the first adjusting member 11 along with the door opening and closing actions, when the first elastic member 21 slides from a lower position to a higher position of the first adjusting member 11, the first elastic member 21 is compressed to generate elastic force to balance the rotating force of the rotating shaft door 5, and when the first elastic member 21 slides from the higher position to the lower position of the first adjusting member 11, the first elastic member 21 rebounds from the compressed state to an initial state, thereby releasing potential energy. Preferably, the first elastic member 21 is a tension spring, and may be an elastic member such as a bellows spring or a spiral spring.
The second damping component 3 includes a damping member 31, the movable end of the damping member 31 is hinged to one end of the second adjusting member 12, the second adjusting member 12 is fixed on the rotating shaft 6, the rotating shaft door 5 is closed, the damping member 31 is in a compression state, when the rotating shaft door 5 is opened, the rotating shaft door 5 drives the damping member 31 to rotate, at this time, the damping member 31 and the first elastic member 21 simultaneously surround the rotating shaft 6 to rotate, because the movable end of the damping member 31 is hinged on the second adjusting member 12, the movable end of the damping member 31 is pulled open, so that the damping member 31 slowly recovers to an original state, at this time, the damping member 31 releases internal energy, when the rotating shaft door 5 is closed, the movable end of the damping member 31 is pushed back, so that the damping rotating shaft member 31 is compressed, the kinetic energy of the rotating shaft door 5 is partially converted into the internal energy of the damping member 31, the kinetic energy consumed by the accumulated internal energy of the damping member 31 and the potential energy released by the first elastic member 21 are restricted with each other, so that the door closing action is effectively buffered, and the rotary shaft door 5 can be closed gently and safely.
Therefore, when the first elastic member 21 compresses and rebounds along the surface of the first adjustment member 11, the damping member 31 rebounds and compresses along with the compression and rebounding of the first elastic member 21, and the actions of the damping member 31 and the first elastic member 21 are opposite, so that the damping effect can be generated when the door is opened or closed. According to the invention, under the synergistic effect of the first damping component 2 and the second damping component 3, the door opening action is smooth, and effective damping buffering can be generated during door opening and door closing, so that the door opening and closing actions are gentle and safe, and better use experience is brought.
In addition, the first damping assembly 2 and the second damping assembly 3 are both placed in the sleeve 4, the first damping assembly 2 and the second damping assembly 3 can act on the adjusting assembly 1 simultaneously, and the effects of compression of the first elastic part 21, rebound of the damping part 31, rebound of the first elastic part 21 and compression of the damping part 31 are respectively generated in a small space, so that the invention also has the advantages of compact and simple structure.
Referring to fig. 2, the first adjusting member 11 and the second adjusting member 12 together form the adjusting assembly 1. The first adjusting part 11 and the second adjusting part 12 are fixedly connected, preferably, the first adjusting part 11 and the second adjusting part 12 are an integral member, and in order to balance the stress of the first adjusting part 11, the first adjusting part 11 is symmetrically distributed on the upper part and the lower part of the second adjusting part 12 up and down, so that the first adjusting part 11 can be divided into an upper adjusting part 112 and a lower adjusting part 114, and the upper adjusting part 112 and the lower adjusting part 114 can simultaneously act on the first elastic part 21, so that the stress of the first adjusting part 11 is uniform. Meanwhile, a space is provided between the upper adjustment member 112 and the lower adjustment member 114 for the placement of the second adjustment member 12. In order to connect with the rotating shaft 6, one end of the sleeve 4 is provided with a shaft placing hole 41, the rotating shaft 6 penetrates through the shaft placing hole 41, and the adjusting assembly 1 is fixedly connected with the rotating shaft 6 and is positioned in the shaft placing hole 41.
In order to adjust the speed of pivot door 5 when opening the door and closing the door, adjusting part 1 still includes speed governing lug 13, speed governing lug 13 is located keep away from in adjusting part 1 one side of first damping subassembly 2, preferably be located the expansion end of damping part 31 with the relative one side of second adjusting part 12 pin joint, speed governing lug 13 bilateral symmetry is equipped with arcwall face 14, speed governing lug 13 protrusion in arcwall face 14, the one end of arcwall face 14 with speed governing lug 13 is connected, preferably connect in the lowest of speed governing lug 13.
Referring to fig. 5, 6 and 7, in order to engage the speed bump 13, the door closer is also provided with a speed regulation assembly 7, the speed regulating assembly 7 comprises a front cover 71, a second elastic member 72 and a speed regulating top block 73, the front cover 71 is positioned at the front end of the sleeve 4 and is used as a closing cover of the front end of the sleeve 4, the second elastic member 72 and the speed regulating top block 73 are positioned on one side of the sleeve 4 far away from the first damping component 2 and the second damping component 3, i.e., close to the speed regulation bump 13, the second elastic member 72 is located between the front cover 71 and the speed regulation top block 73, one end of the second elastic piece 72 is abutted against the front cover 71, the other end is abutted against the speed regulation top block 73, the speed regulation top block 73 is close to the speed regulation lug 13, and the second elastic piece 72 can enable the end surface of the speed regulation top block 73 to slide along the surface of the speed regulation lug 13 and the arc-shaped surface 14. Preferably, the second elastic member 72 is a tension spring, and may be an elastic member such as a bellows spring, a spiral spring, or the like.
Referring to fig. 5, when the rotating shaft door 5 is in the closed state, the speed regulation top block 73 is located in the middle of the speed regulation lug 13, that is, at the highest position of the speed regulation lug 13, when the rotating shaft door 5 is opened, the speed regulation top block 73 swings along with the rotating shaft door 5, and because the speed regulation lug 13 is fixed on the rotating shaft, the speed regulation top block 73 can slowly rotate relative to the speed regulation lug 13, and at this time, because the speed regulation top block 73 is located at the high position of the speed regulation lug 13, the second elastic member 72 is in the compression state, and generates resistance to the movement of the speed regulation top block 73, so the rotating speed is slow.
Referring to fig. 6, when the speed-adjusting top block 73 rotates from a high position to a low position of the speed-adjusting protrusion 13 and abuts against the arc-shaped surface 14, the second elastic member 72 recovers a part of the length thereof, so that the friction force against the arc-shaped surface 14 is weakened, and therefore the moving speed of the speed-adjusting top block 73 is increased, so that the rotation of the rotating shaft door 5 is faster, the door opening speed is increased, and a user can get in and out of the door quickly.
On the contrary, when the pivot door 5 changes from the open state to the closed state, the end surface of the speed regulation kicking block 73 is located on the arc-shaped surface 14, the moving speed of the speed regulation kicking block 73 is fast, so that the rotating speed of the pivot door 5 at the first stage of closing is fast, and when the speed regulation kicking block 73 moves to the bottom of the speed regulation lug 13, due to the blocking of the speed regulation lug 13 and the elastic action of the second elastic member 72, the sliding speed of the speed regulation kicking block 73 can be reduced, so that the speed of closing the door is reduced, the pivot door 5 can show a slow speed at the second stage of closing the door, the situation that the door closing force of the pivot door 5 is too large is avoided, the safety is high, and the door is humanized.
Two ends of the first adjusting part 11 are symmetrically provided with first convex blocks 111, and the first convex blocks 111 are provided with first arc-shaped surfaces 112. The symmetrical arrangement has the advantage that the revolving door 5 can be opened/closed both from the outside and from the inside, so that the direction of opening/closing is not limited. The left side and the right side are still provided with a reset surface 113 between the first lugs 111, the distance from the middle part of the reset surface 113 to the axis of the first adjusting part 11 is not more than the distance from the first arc-shaped surface 112 to the axis of the first adjusting part 11, and the axis of the first adjusting part 11 is the axis of the rotating shaft 6. The reset surface 113 is preferably a flat surface, and may also be a concave curved surface.
Referring to fig. 3 and 4, when the revolving door 5 is in the closed state, the end of the first elastic element 21 is located on the reset surface 113, and because the distance from the reset surface 113 to the axial center of the first adjusting element 11 is relatively short, the first elastic element 21 is in the original long state or the small compression state, when the revolving door 5 is turned from the closed state to the open state, the end of the first elastic element 21 will gradually rise from the reset surface 113 to the surface of the first protrusion 111 and gradually climb to a position away from the axial center of the first adjusting element 11, at this time, the first elastic element 21 will be gradually compressed, so as to generate potential energy, and when the end of the first elastic element 21 completely reaches the top surface of the first protrusion 111, the revolving door 5 will reach the open limit angle. The top surface of the first protrusion 111 is preferably flat, so that the revolving shaft door 5 can automatically hover when reaching the opening limit angle. When the rotary shaft door 5 is in an open state and a closed state, the end of the first elastic member 21 slowly slides from the highest position to the lower position of the first bump 111 and finally returns to the reset surface 113, and at this time, the first elastic member 21 undergoes compression to a state of recovering the original length or a small compression, and potential energy is released.
Preferably, the end of the arc-shaped surface 14 far away from the speed regulation protrusion 13 is connected to the first protrusion 111, so that one end of the first protrusion 111 is connected to the reset surface 113, and the other end of the first protrusion is connected to the arc-shaped surface 14, when the rotating shaft door 5 gradually reaches the opening limit angle, the end of the first elastic member 21 gradually reaches the first protrusion 111 on one side, and at this time, the speed regulation top block 73 gradually reaches the first protrusion 111 on the opposite side from the arc-shaped surface 14, and at this time, due to the blocking of the first protrusion 111 and the elastic force action of the second elastic member 72, the closing speed of the rotating shaft door 5 is obviously reduced, so as to ensure that the rotating shaft door 5 does not have to be too hard when reaching the limit angle, thereby ensuring the service lives of the door closer and the rotating shaft door 5. When the door is closed, the tail end of the first elastic member 21 and the speed regulation top block 73 are respectively and gradually separated from the first bumps 111 at two sides, at this time, the closing speed of the rotating shaft door 5 is slow, until the speed regulation top block 73 is separated from the blocking of the first bumps 111 and reaches the arc-shaped surface 14, at this time, the closing speed of the rotating shaft door 5 starts to be fast, and when the rotating shaft door 5 is to be completely closed, the rotating speed of the rotating shaft door 5 is reduced by the speed regulation top block 73 under the action of the speed regulation bumps 13 and the second elastic member 72, so that the excessive door closing force is avoided.
The second adjusting member 12 is provided with a second protrusion 121, the second protrusion 121 protrudes from the reset surface 113 and is connected to the movable end of the damping member 31, preferably, the protruding direction of the second protrusion 121 is perpendicular to a connection line between two ends of the reset surface 113, and when the reset surface 113 is a plane, the protruding direction of the second protrusion 121 is perpendicular to the plane of the reset surface 113. The second protrusion 121 is provided with a hinge hole, and the hinge hole is used for connecting with the movable end of the damping member 31. The left side and the right side of the second protrusion 121 are both provided with a limiting surface 122, one end of the limiting surface 122 is connected with the second protrusion 121, and the other end of the limiting surface 122 is inclined towards the inside of the adjusting assembly 1 and towards the direction far away from the second protrusion 121. The limiting surface 122 is used for limiting the rotation angle of the rotating shaft door, so that the limiting surface 122 is obliquely arranged. The reason for the symmetrical arrangement is still to be able to leave the door opening/closing direction unrestricted.
In order to facilitate the resetting of the damping member 31, the second damping assembly 3 further includes a connecting rod 32, a piston rod 311 and a piston cylinder 312, one end of the connecting rod 32 is hinged to the piston rod 311, the other end is hinged to the second protrusion 121, the piston rod 311 is located in the piston cylinder 312, and the piston rod 311 is a movable end of the damping member 31. The connecting rod 32 can swing between the two limiting surfaces 122 around a hinge point between the connecting rod 32 and the second protrusion 121, and the two limiting surfaces 122 can limit a swing angle of the connecting rod 32. Therefore, the damping member 31 transmits the resistance through the piston rod 311 and the link 32, and the link 32 not only can transmit the resistance but also can restore the damping member 31 without an elastic member.
When the spindle door 5 is in a closed state, the movable end of the damping member 31, i.e. the piston rod 311, is hinged to the second protrusion 121, at this time, the damping member 31 is in a compressed state, after the spindle door 5 is opened, the damping member 31 rotates relative to the second protrusion 121, the link 32 also swings relative to the second protrusion 121, the link 32 drives the piston rod 311 to slowly pull apart, so that the damping member 31 slowly rebounds, at this time, the damping member 31 does not generate resistance on the spindle door 5, after the spindle door 5 is fully opened, the end of the first elastic member 21 reaches the first protrusion 111, the side of the link 32 is just located on the limiting surface 122, the limiting surface 122 limits the link 32 from swinging any more, and the end of the first elastic member 21 cannot reach the arc-shaped surface 14 across the first protrusion 111, thereby realizing the limitation of the door opening angle. When the rotary shaft door 5 is turned to the closed state from the open state, the connecting rod 32 leaves the limiting surface 122 in the opposite direction, the piston rod 311 compresses the damping member 31 under the pushing of the connecting rod 32, the damping member 31 starts to compress to generate internal energy, so that damping buffering is generated on the door closing action, and the internal energy reaches the highest after the rotary shaft door 5 is completely closed.
Further, in order to protect the first elastic element 21, the first damping assembly 2 further includes a cam top block 22, the first elastic element 21 is in contact with the first adjusting element 11 through the cam top block 22, rather than in direct contact, an end surface of the cam top block 22 can slide between the first protrusion 111 and the reset surface 113 instead of the first elastic element 21, the end surface of the cam top block 22 can slide between the first protrusion 111 and the reset surface 113 more easily, and at the same time, the elastic element 21 is also protected, and the service life of the elastic element 21 is prolonged. One end of the first elastic member 21 abuts against the surface of the piston cylinder 312, and the first elastic member 21 can compress and rebound in the sleeve 4.
Referring to fig. 8, the sleeve 4 further includes a bottom cover 42, an adjusting rod 43 and an adjusting cavity 44, the bottom cover 42 is connected to the rear portion of the sleeve 4, one end of the piston cylinder 312 abuts against the bottom cover 42, and the bottom cover 42 is used for fixing the piston cylinder 312 and serving as a rear sealing cover of the sleeve 4. The adjusting chamber 44 is located at one end of the piston cylinder 312 close to the bottom cover 42, and is used for adjusting the resistance of the damping member 31, the adjusting chamber 44 is communicated with the rear portion of the piston cylinder 312, an adjusting hole 46 is formed in a side portion of the adjusting chamber 44, the adjusting chamber 44 can be communicated with the front portion of the piston cylinder 312 through the adjusting hole, the piston disc of the piston rod 311 is used as a boundary, a portion of the piston cylinder 312 close to the piston rod 311 is the front portion of the piston cylinder 312, and a portion of the piston cylinder 312 close to the bottom cover is the rear portion of the piston cylinder 312, so that the adjusting chamber 44 is communicated with the rear portion and the front portion of the piston cylinder 312 through the end portion and the side portion thereof. The adjusting rod 43 is inserted into the adjusting cavity 44 in a sealing manner, and the adjusting rod 43 can control the opening or closing of the adjusting hole 46. When the resistance of the damping member 31 needs to be increased, the adjusting rod 43 can be screwed to insert the adjusting rod into the adjusting cavity 44 to a greater depth, at this time, the end of the adjusting rod 43 gradually seals the adjusting hole 46, after the insertion is completed, the adjusting hole 46 is closed, at this time, the cavities at the front and rear of the piston cylinder 312 are separated, and when the piston rod 311 continues to be pressed toward the rear of the piston cylinder 312, the pressure at the rear of the piston cylinder 312 gradually increases, so that the damping pressure of the damping member 31 increases, and thus the resistance is increased. When the resistance of the damping member 31 needs to be reduced, the adjusting rod 43 is rotated to make the end of the adjusting rod 43 gradually get away from the adjusting hole 46, so that the adjusting hole 46 can be slightly opened to generate a gap, and air at the rear part of the piston cylinder 312 can enter the front end of the piston cylinder 312 through the gap of the adjusting hole 46, so that when the piston rod 311 is gradually pressed backwards, the pressure change at the rear part of the piston cylinder 312 is not large, no additional resistance is generated on the piston rod 311, and the effect of reducing the damping force is achieved. By controlling the magnitude of the damping force of the damper 31, the degree of cushioning of the spindle door 5 can be controlled, and the rotational speed of the spindle door 5 can be controlled. Due to differences in weight, lubrication, and the like between different spindle doors 5, the use of the adjustment lever 43, the adjustment chamber 44, and the adjustment channel 45 not only enables control of the closing speed of the spindle doors 5, but also expands the range of use of the door closer.
One end of the cam top block 22 close to the second adjusting part 12 is provided with an avoiding hole 221 for avoiding the second adjusting part 12 and the connecting rod 32. When the first elastic member 21 and the damping member 31 rotate simultaneously, the second adjusting member 12 and the connecting rod 32 may touch the cam top 22 to block the rotation, and thus the escape hole 221 may help the first elastic member 21 and the damping member 31 to rotate smoothly. The avoiding hole 221 is preferably conical, and since the swing amplitude of the connecting rod 32 close to one end of the second adjusting member 12 is greater than that of the connecting rod 32 close to one end of the first elastic member 21, the diameter of the avoiding hole 221 close to one end of the second adjusting member 12 is greater than that of one end of the first elastic member 21, so that a better avoiding effect is achieved.
The foregoing is a preferred embodiment of the present invention, and it should be noted that it would be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the principles of the invention, and such modifications and enhancements are also considered to be within the scope of the invention.
Claims (10)
1. A door closer is arranged on a rotating shaft of a rotating shaft door and is characterized by comprising a sleeve, an adjusting component, a first damping component and a second damping component, wherein the first damping component and the second damping component are arranged in the sleeve;
the adjusting assembly comprises a first adjusting piece and a second adjusting piece, and the adjusting assembly is fixed on the rotating shaft;
the first damping assembly comprises a first elastic piece, one end of the first elastic piece is abutted with the surface of the first adjusting piece, and the first elastic piece can rotate around the first adjusting piece and respectively compresses and rebounds along the surface of the first adjusting piece along with the action of opening and closing the door;
the second damping assembly comprises a damping piece, the movable end of the damping piece is hinged with the second adjusting piece, the second adjusting piece is fixed on the rotating shaft, and the damping piece can be compressed to generate buffering resistance;
the first elastic piece and the damping piece can simultaneously rotate around the adjusting assembly along with the rotating shaft door, and the damping piece can be compressed along with the rebound of the first elastic piece.
2. The door closer of claim 1, wherein the first adjusting piece and the second adjusting piece are fixedly connected, and the first adjusting piece is distributed at the upper part and the lower part of the second adjusting piece in an up-and-down symmetrical manner;
the telescopic one end is equipped with puts the shaft hole, the pivot passes put the shaft hole, adjusting part with pivot fixed connection is located put in the shaft hole.
3. The door closer of claim 1, wherein the adjusting assembly further comprises a speed regulating protrusion, the speed regulating protrusion is disposed on one side of the adjusting assembly away from the first damping assembly, arc-shaped surfaces are symmetrically disposed on two sides of the speed regulating protrusion, the speed regulating protrusion protrudes out of the arc-shaped surfaces, and one end of the arc-shaped surfaces is connected with the speed regulating protrusion.
4. The door closer of claim 3, further comprising a speed adjustment assembly, the speed adjustment assembly comprising a front cover, a second elastic member and a speed adjustment top block, the front cover being located at a front end of the sleeve, the second elastic member and the speed adjustment top block being located on a side of the sleeve away from the first damping assembly and the second damping assembly, the second elastic member being located between the front cover and the speed adjustment top block, the speed adjustment top block being located near the speed adjustment bump, the second elastic member enabling an end surface of the speed adjustment top block to slide along a surface of the speed adjustment bump and the arc surface.
5. The door closer according to claim 4, wherein the two ends of the first adjusting member are symmetrically provided with first protrusions, a reset surface is further provided between the first protrusions, and the distance from the middle of the reset surface to the axis of the first adjusting member is smaller than the distance from the surface of the first protrusion to the axis of the first adjusting member;
one end of the arc-shaped surface, which is far away from the speed regulation lug, is connected with the first lug.
6. The door closer of claim 5, wherein the second adjusting member is provided with a second projection, and the second projection protrudes from the surface of the reset surface and is connected with the movable end of the damping member;
the left side and the right side of the second bump are both provided with limiting surfaces, one end of each limiting surface is connected with the second bump, and the other end of each limiting surface inclines towards the inside of the adjusting assembly and the direction far away from the second bump.
7. The door closer of claim 6, wherein the first damping assembly further comprises a cam top, the first elastic member is in contact with the first adjusting member through the cam top, and an end surface of the cam top is slidable between the first protrusion and the reset surface;
the first elastic member is capable of compressing and rebounding within the sleeve.
8. The door closer of claim 7, wherein the second damping assembly further comprises a connecting rod, a piston rod and a piston cylinder, one end of the connecting rod is hinged to the piston rod, the other end of the connecting rod is hinged to the second projection, the piston rod is located in the piston cylinder, the connecting rod can slide and swing in the cam top block, the connecting rod can swing between the two limiting surfaces around a hinge point of the connecting rod and the second projection, and the two limiting surfaces can limit a swing angle of the connecting rod.
9. The door closer of claim 8, wherein the sleeve further comprises a bottom cap, an adjusting rod, an adjusting cavity and an adjusting channel, the bottom cap is connected with the tail of the sleeve, one end of the piston cylinder is abutted against the bottom cap, and the adjusting cavity is located at one end of the piston cylinder close to the bottom cap;
one end of the adjusting cavity is communicated with the rear portion of the piston cylinder, an adjusting hole is formed in the side portion of the adjusting cavity, the adjusting cavity can be communicated with the front portion of the piston cylinder through the adjusting hole, the adjusting rod is inserted into the adjusting cavity in a sealing mode, and the adjusting rod can control the opening or closing of the adjusting hole.
10. The door closer of claim 7, wherein an avoiding hole is formed in one end, close to the second adjusting member, of the cam top block, the avoiding hole is conical, the diameter, close to one end of the second adjusting member, of the avoiding hole is larger than that of one end, close to the first elastic member, of the avoiding hole, and the avoiding hole is used for avoiding the second adjusting member and the connecting rod.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110859328.9A CN113622776B (en) | 2021-07-28 | 2021-07-28 | Door closer |
| PCT/CN2021/111372 WO2023004877A1 (en) | 2021-07-28 | 2021-08-08 | Door closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110859328.9A CN113622776B (en) | 2021-07-28 | 2021-07-28 | Door closer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113622776A true CN113622776A (en) | 2021-11-09 |
| CN113622776B CN113622776B (en) | 2024-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110859328.9A Active CN113622776B (en) | 2021-07-28 | 2021-07-28 | Door closer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113622776B (en) |
| WO (1) | WO2023004877A1 (en) |
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| CN114458115A (en) * | 2021-12-20 | 2022-05-10 | 宁波市五角阻尼股份有限公司 | Door stopper structure |
| US20220389745A1 (en) * | 2020-01-24 | 2022-12-08 | Overhead Door Corporation | Swing Door Operator with Offset Spring |
| CN116025240A (en) * | 2023-03-30 | 2023-04-28 | 箭牌家居集团股份有限公司 | Door closer assembly and shower room device |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2023004877A1 (en) | 2023-02-02 |
| CN113622776B (en) | 2024-09-03 |
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