CN216588226U

CN216588226U - Door closer with locking speed delay function

Info

Publication number: CN216588226U
Application number: CN202121693125.9U
Authority: CN
Inventors: 杜浩
Original assignee: Zhuhai Free Trade Zone Yinke Schulte Gated Technology Co ltd
Current assignee: Zhuhai Free Trade Zone Yinke Schulte Gated Technology Co ltd
Priority date: 2021-07-25
Filing date: 2021-07-25
Publication date: 2022-05-24
Anticipated expiration: 2031-07-25

Abstract

The utility model discloses a door closer with a locking speed delay, which increases the use function of a product, improves the applicable environment of the product and enhances the market competitiveness of the product. The door closer comprises a door closer body, wherein an inner cavity is arranged in the door closer body, a piston is arranged on the left side of the inner cavity, an oil passage communicated with the inner cavity is arranged on the left side of the door closer body, an upper locking valve and a locking delay valve which are communicated with each other are respectively arranged on the left side and the right side of the oil passage, a delay valve oil discharge passage communicated with the locking delay valve is arranged on the right side of the oil passage, a locking valve oil discharge passage communicated with the locking valve is arranged on the left side of the delay valve oil discharge passage, when the door closer body is positioned in a door closing interval of 15-7 degrees, the piston blocks the upper locking valve oil discharge passage, and when the door closer body is positioned in a door closing interval of 7-0 degrees, the delay valve oil discharge passage and the locking valve oil discharge passage are both in a conducting state. The utility model is applied to the technical field of door closers.

Description

Door closer with locking speed delay function

Technical Field

The present invention relates to a door closer, and more particularly, to a door closer having a lock speed delay.

Background

The door closer is a hydraulic press similar to a spring on the door head, can be released after being compressed after the door is opened, automatically closes the door, has the effect like a spring door, and can ensure that the door is accurately and timely closed to an initial position after being opened.

The door closer on the market at present usually has only one regulating valve to control at an angle of 0-15 degrees in the door closing process, namely, only one speed exists in the interval, and the running speed and the door collision force of the door cannot be divided again in the interval; however, in some rooms with small space and good sealing, which are ubiquitous at present, the current door closer product cannot be locked, because in the process of locking at 0-15 degrees, the air inside cannot be discharged quickly, and the door closing force of the door closer is not enough to overcome the resistance of compressed air.

Therefore, the existing hydraulic door closer only has two valves, namely a door closing speed valve and a tail end collision door valve, to control the tail end speed during door closing, and does not have a locking speed delay function, so that the door closer cannot be locked in a room with small space and good sealing performance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides the door closer with the locking speed delay, which increases the using function of products, improves the applicable environment of the products and enhances the market competitiveness of the products.

The technical scheme adopted by the utility model is as follows: the door closer comprises a door closer body, wherein an inner cavity is arranged in the door closer body, a piston is arranged on the left side of the inner cavity, the inner cavity forms a left cavity and a right cavity under the action of the piston, an oil passage communicated with the inner cavity is arranged on the left side of the door closer body, an upper locking valve and a locking delay valve which are communicated with each other are respectively arranged on the left side and the right side of the oil passage, a delay valve oil discharge passage communicated with the locking delay valve is arranged on the right side of the oil passage, a locking valve oil discharge passage communicated with the locking valve is arranged on the left side of the delay valve oil discharge passage, when the door closer body is in a door closing range of 15-7 degrees, the piston blocks the upper locking valve oil discharge passage, the delay valve oil discharge passage is in a communicated state, hydraulic oil in the left cavity flows from the oil passage and is discharged to the right cavity through the delay valve oil discharge passage, when the door closer body is located between the range of 7 degrees and 0 degrees, the delay valve oil discharge channel and the upper lock valve oil discharge channel are both in a conducting state, and hydraulic oil in the left cavity flows into the oil channel and is discharged to the right cavity through the delay valve oil discharge channel and the upper lock valve oil discharge channel.

Furthermore, the oil way passageway includes hydraulic oil inflow passageway, water conservancy diversion passageway and hydraulic oil discharge passage, the hydraulic oil inflow passageway set up in the end of left side cavity and with the water conservancy diversion passageway is linked together, the water conservancy diversion passageway all with the one end of locking the valve with the one end of locking the delay valve is linked together, the hydraulic oil discharge passage all with the other end of locking the valve with the other end of locking the delay valve is linked together, lock the valve oil discharge passageway with delay valve oil discharge passage set up in the right side of hydraulic oil discharge passage, and with the inner chamber is linked together.

Furthermore, a speed valve and a door closing delay valve which are communicated with each other are arranged on the left side of the lower end of the door closer body.

Furthermore, the left side and the right side of the door closer body are provided with sealing covers.

Further, the right cavity is further provided with a spring connected with the piston.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model adds the locking delay valve in the oil path channel, forms a brand new oil path channel by matching with the locking valve, and combines the position design of the piston, finally satisfies two operation speeds of 0-15 degree door closing interval controlled by the mutual adjustment of the locking valve and the locking delay valve, namely when the door closer body is in the 15-7 degree door closing interval, the flow rate of the hydraulic oil can be controlled by the locking delay valve so as to achieve the function of controlling the door closing speed, when the door closer body is in the 7-0 degree door closing interval, the flow rate of the hydraulic oil can be controlled by adjusting the locking delay valve and the locking valve together, the flow rate in the interval can be accelerated, the door is in an accelerating state so as to achieve the function of crashing and locking the door, therefore, the design increases the use range of the product in certain specific environments, such as in some rooms with smaller space, when the doors and windows of the room are completely closed, a sealed space can be formed so as to make the air flow speed slow, the product can control the door to decelerate in a specific interval in the closing process of the control door, and the time is reserved for air to flow out, so that the aim of completely locking is fulfilled; in addition, the design enriches the functions of the product, meets the requirement of the market for continuously increasing the demand of the product and enhances the market competitiveness of the product.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view taken along the line A-A in FIG. 1;

FIG. 3 is a schematic diagram of the operation of hydraulic oil in a 15-7-degree door closing range;

fig. 4 is a hydraulic oil operation schematic diagram of a door closing interval of 7 degrees to 0 degrees.

Detailed Description

As shown in fig. 1 to 4, in this embodiment, the present invention includes a door closer body 1, an inner cavity 2 is provided in the door closer body 1, a piston 3 is provided on the left side of the inner cavity 2, the inner cavity 2 forms a left cavity 21 and a right cavity 22 under the action of the piston 3, an oil passage 5 communicated with the inner cavity 2 is provided on the left side of the door closer body 1, a lock valve 6 and a lock delay valve 7 communicated with each other are respectively provided on the left and right sides of the oil passage 5, a delay valve oil discharge passage 8 communicated with the lock delay valve 7 is provided on the right side of the oil passage 5, a lock valve oil discharge passage 9 communicated with the lock valve 6 is provided on the left side of the delay valve oil discharge passage 8, when the door closer body 1 is in a door closing interval of 15 ° to 7 °, the piston 3 blocks the lock valve oil discharge passage 9, the delay valve oil discharge channel 8 is in a conducting state, the hydraulic oil in the left cavity 21 flows in from the oil passage channel 5 and is discharged to the right cavity 22 through the delay valve oil discharge channel 8, so that the flow rate of the hydraulic oil is controlled through the locking delay valve 7, and the door closing speed is controlled; when the door closer body 1 is in a door closing range from 7 degrees to 0 degrees, the acting force of the spring and the pushing force of the opening door drive the piston 3 to continuously move leftwards, so that the piston 3 moves to the left side of the oil discharge channel of the upper locking valve, the oil discharge channel 8 of the delay valve and the oil discharge channel 9 of the upper locking valve are both in a conducting state, hydraulic oil in the left cavity 21 flows in from the oil channel 5 and is discharged to the right cavity 22 through the oil discharge channel 8 of the delay valve and the oil discharge channel 9 of the upper locking valve, the flow rate of the hydraulic oil is controlled by adjusting the two valves of the upper locking valve 6 and the upper locking delay valve 7 together, the flow rate of the hydraulic oil is accelerated in the range, and the door is in an accelerating state, so that the locking function of the door is achieved.

In this embodiment, the oil path passage 5 includes a hydraulic oil inflow passage 51, a flow guide passage 52 and a hydraulic oil discharge passage 53, the hydraulic oil inflow passage 51 is disposed at the end of the left cavity 21 and is communicated with the flow guide passage 52, the flow guide passage 52 is communicated with one end of the lock valve 6 and one end of the lock delay valve 7, the hydraulic oil discharge passage 53 is communicated with the other end of the lock valve 6 and the other end of the lock delay valve 7, and the lock valve oil discharge passage 9 and the delay valve oil discharge passage 8 are disposed at the right side of the hydraulic oil discharge passage 53 and are communicated with the inner cavity 2.

In the present embodiment, the door closer body 1 is provided at the lower end left side thereof with a speed valve 10 and a door closing delay valve 11 communicating with each other.

In this embodiment, the door closer body 1 is provided with sealing covers on both left and right sides.

In this embodiment, the right chamber 22 is further provided with a spring connected to the piston 3, and the acting force of the spring and the pushing force of the opening door drive the piston 3 to move left and right, thereby completing the circulation of the whole oil path in the two chambers, i.e., the left chamber 21 and the right chamber 22.

The utility model is applied to the technical field of door closers.

While the embodiments of the present invention have been described in terms of practical embodiments, they are not to be construed as limiting the meaning of the present invention, and modifications of the embodiments and combinations with other embodiments will be apparent to those skilled in the art in light of the present description.

Claims

1. A door closer with a lock speed delay, characterized by: the door closer comprises a door closer body (1), wherein an inner cavity (2) is arranged in the door closer body (1), a piston (3) is arranged on the left side of the inner cavity (2), the inner cavity (2) forms a left cavity (21) and a right cavity (22) under the action of the piston (3), an oil passage (5) communicated with the inner cavity (2) is arranged on the left side of the door closer body (1), an upper locking valve (6) and a upper locking delay valve (7) which are communicated with each other are respectively arranged on the left side and the right side of the oil passage (5), a delay valve oil discharge passage (8) communicated with the upper locking delay valve (7) is arranged on the right side of the oil passage (5), an upper locking valve oil discharge passage (9) communicated with the upper locking valve (6) is arranged on the left side of the delay valve oil discharge passage (8), and when the door closer body (1) is in a door closing range of 15-7 degrees, piston (3) block lock valve oil discharge passageway (9) on, delay valve oil discharge passageway (8) are in the conducting state, hydraulic oil in left side cavity (21) is followed oil way passageway (5) flow in and pass through delay valve oil discharge passageway (8) are arranged to right cavity (22), when door closer body (1) is in 7 to 0 when closing the interval, delay valve oil discharge passageway (8) with lock valve oil discharge passageway (9) all are in the conducting state, hydraulic oil in left side cavity (21) is followed oil way passageway (5) flow in and pass through delay valve oil discharge passageway (8) with lock valve oil discharge passageway (9) are arranged to right cavity (22).

2. A door closer with lock speed delay according to claim 1, wherein: oil sweetgum fruit passageway (5) include hydraulic oil inflow passageway (51), water conservancy diversion passageway (52) and hydraulic oil discharge passage (53), hydraulic oil inflow passageway (51) set up in the end of left side cavity (21) and with water conservancy diversion passageway (52) are linked together, water conservancy diversion passageway (52) all with the one end of locking valve (6) with the one end of locking delay valve (7) is linked together, hydraulic oil discharge passage (53) all with the other end of locking valve (6) with the other end of locking delay valve (7) is linked together, lock valve oil discharge passage (9) with delay valve oil discharge passage (8) set up in the right side of hydraulic oil discharge passage (53), and with inner chamber (2) are linked together.

3. A door closer with lock speed delay according to claim 1, wherein: the left side of the lower end of the door closer body (1) is provided with a speed valve (10) and a door closing delay valve (11) which are communicated with each other.

4. A door closer with lock speed delay according to claim 1, wherein: the left side and the right side of the door closer body (1) are provided with sealing covers.

5. A door closer with lock speed delay according to claim 1, wherein: the right cavity (22) is also provided with a spring connected with the piston (3).