Electrically-controlled hydraulic door closer

Abstract

The utility model discloses an electric control hydraulic door closer which comprises a hydraulic main body, a clamping cam, a mounting bracket I, an electromagnet, a warping plate assembly, a reset pull rod, a release deflector rod, a release spring, a buckle and a gasket. On the basis of the sliding-groove-free hydraulic door closer, by arranging the clamping cam, the electromagnet, the warping plate assembly, the reset pull rod, the release shifting rod, the release spring, the buckle and other structures, door opening positioning and electric control release of a fireproof door can be achieved, and therefore the sliding-groove-free hydraulic door closer can also be used for a normally-open type fireproof door.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of door closer, in particular to an electric control hydraulic door closer. BACKGROUND

[0002] The hydraulic door closer without sliding groove is generally provided with intermeshing tooth structure on the outer surface of the plunger in the hydraulic body and the output shaft, the connecting rod connected with the fireproof door and the output shaft are coaxially connected, when the fireproof door is opened or closed, the output shaft is driven to rotate through the connecting rod, the plunger is driven to reciprocate forward and backward through the tooth structure, thereby playing the role of hydraulic buffering. The existing hydraulic door closer without sliding groove generally does not have the door opening positioning function, and thus can only be used for the normally closed fireproof door. CONTENT

[0003] In view of the defects of the prior art, the present application aims to provide an electric control hydraulic door closer.

[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0005] An electric control hydraulic door closer, comprising a hydraulic body, a clamping cam, a mounting bracket one, an electromagnet, a flap assembly, a reset pull rod, a release lever, a release spring, a buckle and a gasket;

[0006] The clamping cam is fixed to the output shaft of the hydraulic body, the mounting bracket one is fixed to one side of the hydraulic body, and the electromagnet is fixed to the mounting bracket one;

[0007] The flap assembly comprises a flap and a clamping sliding block, the lower part of the buckle passes through the mounting bracket one and is located below the mounting bracket one, the upper part of the buckle is connected to the release lever, the right side of the lower part of the buckle is provided with a clamping opening, the left end of the flap is provided with a clamping column, the right side of the lower part of the buckle is connected to the first rotating shaft on the mounting bracket one through the shaft hole one and can rotate, and the shaft hole one is located above the clamping opening, the armature of the electromagnet is connected to the lower part of the buckle and can drive the lower part of the buckle to swing left and right through left-right telescopic movement, and the lower part of the buckle can separate or clamp the clamping opening and the clamping column through left-right swinging;

[0008] The right end of the flap is connected to the clamping sliding block, the right lower part of the clamping sliding block is connected to the second rotating shaft on the mounting bracket one through the shaft hole two and can eccentrically rotate around the second rotating shaft, the right upper part of the clamping sliding block is provided with a rotation limiting structure, the outer circumferential surface of the clamping cam is provided with a protrusion, the protrusion can reach the position of the rotation limiting structure and make the rotation limiting structure abut against one side of the protrusion in the rotation direction with the rotation of the clamping cam;

[0009] The left part of the flap is provided with an elongated through hole, the lower end of the reset pull rod passes through the mounting bracket and the elongated through hole, and the part of the reset pull rod below the elongated through hole is connected to the gasket, the release spring is sleeved on the part of the reset pull rod above the elongated through hole, the gasket and the release spring are respectively abutted against the bottom surface and the top surface of the flap and cannot pass through the elongated through hole; when the bayonet and the clamping column are clamped, the release spring is in a compressed state.

[0010] Further, the flap assembly further comprises a steel pin, the steel pin penetrates the right end of the armature of the electromagnet in the front-rear direction; the lower part of the buckle is inclined from top to bottom and leftward, and the lower part of the buckle is provided with a guide groove, the steel pin passes through the guide groove and can move along the guide groove.

[0011] Still further, the flap assembly further comprises a spring, the spring is sleeved on the right end of the armature and located at the left side of the steel pin.

[0012] Further, the rotation limiting structure comprises a limiting structure cavity, a limiting block and a compression spring; the limiting structure cavity is arranged on the right upper part of the clamping slider, one end of the compression spring is connected to the left lower part of the inner wall of the limiting structure cavity, and the other end is connected to the limiting block; when the compression spring is in an uncompressed state, the limiting block extends out of the outside of the limiting structure cavity.

[0013] Still further, a limiting column is arranged on the limiting block, the limiting structure cavity is provided with a limiting hole extending along the movement direction of the limiting block at the corresponding position of the limiting column, the limiting column extends into the limiting hole and can move along the limiting hole.

[0014] Further, the electrically controlled hydraulic door closer further comprises a mounting bracket two, a door closing signal switch fixing seat and a door closing signal switch, the mounting bracket two is fixed to the other side of the hydraulic main body, and the door closing signal switch is installed on the mounting bracket two through the door closing signal switch fixing seat; the protrusion of the clamping cam can abut against the door closing signal switch by rotating with the clamping cam.

[0015] The electrically controlled hydraulic door closer has the advantages that: on the basis of the hydraulic door closer without a chute, the clamping cam, the electromagnet, the flap assembly, the reset pull rod, the release lever, the release spring and the buckle are arranged, so that the door opening positioning and the electrically controlled release of the fireproof door can be realized, and therefore the hydraulic door closer without a chute can also be used for the normally open fireproof door. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a front view of the electrically controlled hydraulic door closer in the embodiment of the utility model;

[0017] Figure 2It is the bottom surface schematic view of the electric control hydraulic door closer in the embodiment of the utility model.

[0018] Figure 3 It is the perspective schematic view of one side view of the electric control hydraulic door closer in the embodiment of the utility model.

[0019] Figure 4 It is the perspective schematic view of the other side view of the electric control hydraulic door closer in the embodiment of the utility model.

[0020] Figure 5 It is the structure schematic view of the buckle in the embodiment of the utility model.

[0021] Figure 6 It is the structure schematic view of the clamping cam in the embodiment of the utility model.

[0022] Figure 7 It is the combination schematic view of the rocker and the clamping sliding block in the embodiment of the utility model.

[0023] Figure 8 It is the exploded schematic view of the clamping sliding block in the embodiment of the utility model.

[0024] Figure 9 It is one of the use state schematic view of the electric control hydraulic door closer in the embodiment of the utility model.

[0025] Figure 10 It is the other use state schematic view of the electric control hydraulic door closer in the embodiment of the utility model. DETAILED DESCRIPTION

[0026] The utility model will be further described below with reference to the drawings, and it should be noted that the embodiment is based on the technical scheme, and detailed implementation mode and specific operation process are given, but the protection scope of the utility model is not limited to the embodiment.

[0027] The embodiment provides a kind of electric control hydraulic door closer, as Figure 1 As shown in the figure 8, including hydraulic body 1, clamping cam 2, installation support one 4, electromagnet 5, rocker assembly, reset pull rod 6, release lever 7, release spring 8, buckle 9 and gasket 10.

[0028] The clamping cam 2 is fixed in the output shaft of the hydraulic body 1 by cam insert part;The installation support one 4 is fixed to one side of the hydraulic body 1, and the electromagnet 5 is fixed to the installation support one 4 by electromagnet installation pad block 11.

[0029] The rocker assembly comprises a rocker 12, a clamping slider 13, a spring 14 and a steel pin 15, the steel pin 15 penetrates the right end of an armature 16 of the electromagnet 5 in the front-rear direction, the spring 14 is sleeved on the right end of the armature 16 and is located on the left side of the steel pin 15, the armature 16 is retracted to the left when being attracted by the energized electromagnet 5, and is extended to the right when being released by the de-energized electromagnet 5.

[0030] The lower part of the buckle 9 penetrates the mounting bracket one 4 and is located below the mounting bracket one 4, and the upper part of the buckle 9 is connected to the release lever 7; the lower part of the buckle 9 is inclined to the left from top to bottom, and the lower part of the buckle 9 is provided with a guide groove 17 inclined to the left from top to bottom, the steel pin 15 penetrates the guide groove 17 and can move along the guide groove 17; the right side of the lower part of the buckle 9 is provided with a bayonet 18, the left end of the rocker 12 is provided with a clamping column 19, and the lower part of the buckle 9 can swing left and right under the driving of the armature to separate or clamp the bayonet 18 and the clamping column 19; the right side of the lower part of the buckle 9 is rotatably connected to a rotating shaft one 21 on the mounting bracket one 4 through a shaft hole one 20, and the shaft hole one 20 is located above the bayonet 18.

[0031] The right end of the rocker 12 is connected to the clamping slider 13; the right lower part of the clamping slider 13 is connected to a rotating shaft two 23 on the mounting bracket one 4 through a shaft hole two 22 and can rotate eccentrically around the rotating shaft two 23, the right upper part of the clamping slider 13 is provided with a rotation limiting structure, the outer periphery of the clamping cam 2 is provided with a protrusion 24, the protrusion 24 can reach the position of the rotation limiting structure with the rotation of the clamping cam 2 and make the rotation limiting structure abut against one side of the protrusion 24 in the rotation direction.

[0032] The left part of the rocker 12 is provided with an elongated through hole 25, the lower end of the reset pull rod 6 penetrates the mounting bracket one 4 and then penetrates the elongated through hole 25, and the part of the reset pull rod 6 below the elongated through hole 25 is connected to the gasket 10, the release spring 8 is sleeved on the part of the reset pull rod 6 above the elongated through hole 25, and the gasket 10 and the release spring 8 respectively abut against the bottom surface and the top surface of the rocker 12 and cannot pass through the elongated through hole 25; when the bayonet 18 and the clamping column 19 are clamped, the release spring 8 is in a compressed state.

[0033] In the embodiment, the rotation limiting structure comprises a limiting structure cavity 26, a limiting block 27 and a compression spring 28; the limiting structure cavity 26 is arranged on the right upper part of the clamping slider 3, one end of the compression spring 28 is connected to the left lower part of the inner wall of the limiting structure cavity 26, and the other end is connected to the limiting block 27; when the compression spring 28 is in an uncompressed state, the limiting block 27 extends out of the limiting structure cavity 26.

[0034] Specifically, in the present embodiment, the limiting block 27 is provided with a limiting post 29, the limiting structure cavity 26 is provided with a limiting hole 30 extending along the movement direction of the limiting block 27 at a position corresponding to the limiting post 29, and the limiting post 29 extends into the limiting hole 30 and can move along the limiting hole 30. The movement distance of the limiting block 27 can be limited through the limiting hole 30, so as to prevent the limiting block 27 from being separated from the clamping slider 13.

[0035] In the present embodiment, the electrically-controlled hydraulic door closer further comprises a mounting bracket two 3, a door closing signal switch 31 and a door closing signal switch fixing seat 32; the mounting bracket two 3 is fixed to the other side of the hydraulic main body 1, the door closing signal switch 31 is installed on the mounting bracket two 3 through the door closing signal switch fixing seat 32; the protrusion 24 of the clamping cam 2 can abut against the door closing signal switch 31 by rotating with the clamping cam. The current position of the clamping cam 2 can be sensed through the door closing signal switch 31, so as to determine whether the fire door is currently opened or closed. When the protrusion 24 of the clamping cam 2 abuts against the door closing signal switch 31, it indicates that the fire door is currently in the closed state.

[0036] The working principle of the above-mentioned electrically-controlled hydraulic door closer is as follows:

[0037] When the fire door is manually opened, the connecting rod connected to the door leaf and the output shaft of the hydraulic main body drives the output shaft to rotate, thereby driving the clamping cam to rotate forward. When the protrusion reaches the position of the rotation limiting structure with the forward rotation of the clamping cam, the protrusion has enough force to push the limiting block to move towards the limiting structure cavity and compress the compression spring, so that the clamping cam can continue to rotate forward. When the fire door is rotated to the position, the external force disappears, at this time the protrusion has passed the position of the limiting block, the limiting block re-extends out of the limiting structure cavity, but at this time the protrusion does not have enough force to push the limiting block, so the limiting block abuts against the side of the protrusion towards the rotation direction, thereby limiting the rotation of the clamping cam, realizing the positioning of the fire door, as shown in Figure 1 .

[0038] When the door closer receives the release signal (i.e. the fire door is to be closed), the control circuit board starts the electromagnet, the armature of the electromagnet moves to the left to contract, and drives the lower end of the clamping buckle to swing to the left through the steel pin, finally makes the clamping buckle on the right side of the clamping buckle to be separated from the clamping column on the left end of the flap. After the clamping buckle and the clamping column are separated, the movement restriction of the flap is cancelled, under the action of the elastic potential energy released by the release spring, the right lower part of the clamping slider on the right end of the flap eccentrically rotates downward around the rotating shaft, and is separated from the position of the rotation limiting mechanism, thereby releasing the position restriction of the rotation limiting mechanism, as shown in Figure 9 . At this time, the clamping cam rotates, and the output shaft of the hydraulic main body rotates to reset, thereby driving the door leaf to close, as shown in Figure 10 .

[0039] When the fire door in the open state is manually closed, the release lever is pulled, the buckle is separated from the clamping column under the manual, and the closing process of the door leaf is realized. When the door closer is in the release state (i.e. the door leaf is closed), the fire door needs to be reopened, the release lever is pulled first, the reset lever is pulled upward, the buckle and the clamping column are clamped manually, and then the fire door is opened according to the foregoing process, and the door leaf is in the open state.

[0040] For those skilled in the art, various corresponding changes and modifications can be given according to the above technical solutions and concepts, and all these changes and modifications should be included in the protection scope of the utility model claim.

Claims

1. An electrically controlled hydraulic door closer, characterized in that, The hydraulic body, the clamping cam, the mounting bracket one, the electromagnet, the rocker assembly, the reset pull rod, the release lever, the release spring, the buckle and the gasket; The clamping cam is fixed to the output rotating shaft of the hydraulic body; the mounting bracket one is fixed to one side of the hydraulic body, and the electromagnet is fixed to the mounting bracket one; The lower part of the buckle passes through the mounting bracket one and is located below the mounting bracket one, the upper part of the buckle is connected to the release lever, the right side of the lower part of the buckle is provided with a clamping hole, the left end of the rocker is provided with a clamping column, the right side of the lower part of the buckle is rotatably connected to the rotating shaft one on the mounting bracket one through the shaft hole one, and the shaft hole one is located above the clamping hole, the armature of the electromagnet is connected to the lower part of the buckle and can drive the lower part of the buckle to swing left and right through left and right expansion and contraction, and the lower part of the buckle can separate or clamp the clamping hole and the clamping column through left and right swinging; The right end of the rocker is connected to the clamping slider, the right lower part of the clamping slider is connected to the rotating shaft two on the mounting bracket one through the shaft hole two and can eccentrically rotate around the rotating shaft two, the right upper part of the clamping slider is provided with a rotation limiting structure, the outer periphery of the clamping cam is provided with a protrusion, the protrusion can reach the position of the rotation limiting structure through the rotation of the clamping cam and make the rotation limiting structure and the protrusion on one side of the rotation direction abut each other. The left part of the rocker is provided with an elongated through hole, the lower end of the reset pull rod passes through the mounting bracket one and then passes through the elongated through hole, and the part of the reset pull rod below the elongated through hole is connected to the gasket, the release spring is sleeved on the part of the reset pull rod above the elongated through hole, and the gasket and the release spring abut the bottom surface and the top surface of the rocker respectively and cannot pass through the elongated through hole; when the clamping hole and the clamping column are clamped, the release spring is in a compressed state.

2. The electrically controlled hydraulic door closer according to claim 1, wherein The rocker assembly further comprises a steel pin, the steel pin penetrates the right end of the armature of the electromagnet in the front and back directions; the lower part of the buckle is inclined to the left from top to bottom, and the lower part of the buckle is provided with a guide groove, and the steel pin passes through the guide groove and can move along the guide groove.

3. The electrically controlled hydraulic door closer according to claim 2, wherein The rocker assembly further comprises a spring, the spring is sleeved on the right end of the armature and located on the left side of the steel pin.

4. The electrically controlled hydraulic door closer according to claim 1, wherein The rotation limiting structure comprises a limiting structure cavity, a limiting block and a compression spring; the limiting structure cavity is arranged on the right upper part of the clamping slider, one end of the compression spring is connected to the left lower part of the inner wall of the limiting structure cavity, and the other end is connected to the limiting block; when the compression spring is in an uncompressed state, the limiting block protrudes outside the limiting structure cavity.

5. The electrically controlled hydraulic door closer according to claim 4, wherein A limiting column is arranged on the limiting block, a limiting hole extending in the movement direction of the limiting block is arranged at the position corresponding to the limiting column of the limiting structure cavity, the limiting column protrudes into the limiting hole and can move along the limiting hole.

6. The electrically controlled hydraulic door closer according to claim 1, wherein The installation support two, the door closing signal switch fixing seat and the door closing signal switch are further included, the installation support two is fixed on the other side of the hydraulic main body, the door closing signal switch is installed on the installation support two through the door closing signal switch fixing seat; the convex of the clamping cam can be abutted with the door closing signal switch through the rotation of the clamping cam.

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