CN212507876U

CN212507876U - Time-delay multi-section force-regulating door closer

Info

Publication number: CN212507876U
Application number: CN202020929726.4U
Authority: CN
Inventors: 黄杰开
Original assignee: Zhaoqing Anxin Hydraulic Hardware Co ltd
Current assignee: Zhaoqing Anxin Hydraulic Hardware Co ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-02-09
Anticipated expiration: 2030-05-27

Abstract

The utility model discloses a time delay multistage accent power door closer, including casing, piston, pivot, spring, adjusting screw and adjusting nut, in the casing was located to the piston, the both sides of piston were equipped with the first oil pocket and the second oil pocket of mutual intercommunication respectively, and the spring is located first oil pocket, the one end and the piston looks butt of spring, and the other end is connected with adjusting nut, and adjusting screw cooperatees with the casing, and stretches into first oil pocket, and the adjusting nut cover is established on adjusting screw, and the casing is run through in the pivot to cooperate with the piston. Through being equipped with adjusting screw and adjusting nut, can be through rotating adjusting screw for adjusting nut adjusting screw removes relatively, thereby can make adjusting nut to spring one side or to keeping away from spring one side and remove, realize the regulation to spring compression, and then the bounce-back when the control spring rebounds has realized the regulation to the dynamics of closing the door promptly, does benefit to this time delay multistage accent power door closer and satisfies different operation requirements.

Description

Time-delay multi-section force-regulating door closer

Technical Field

The utility model belongs to a door closer especially relates to a time delay multistage accent power door closer.

Background

The door closer in the existing market can not adjust the door closing force mostly according to specific use requirements after the assembly is completed, and if the door closer needs to be used in different occasions, the door closer with different models needs to be replaced, so that the applicability of the door closer is greatly limited. In addition, the existing partial door closer only has one section and two sections of speed regulating force, and the performance of the existing partial door closer cannot achieve the effects of safe use and user protection.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can solve the time delay multistage accent power door closer of at least one in the above-mentioned problem.

According to the utility model discloses an aspect provides a time delay multistage accent power door closer, including casing, piston, pivot, spring, adjusting screw and adjusting nut, in the casing was located to the piston, the both sides of piston were equipped with the first oil pocket and the second oil pocket of mutual intercommunication respectively, and the spring is located first oil pocket, and the one end and the piston looks butt of spring, the other end are connected with adjusting nut, and adjusting screw cooperatees with the casing, and stretches into first oil pocket, and the adjusting nut cover is established on adjusting screw, and the pivot runs through the casing to cooperate with the piston.

The utility model has the advantages that: through being equipped with adjusting screw and adjusting nut, can be through rotating adjusting screw for adjusting nut adjusting screw removes relatively, thereby can make adjusting nut to spring one side or to keeping away from spring one side and remove, realize the regulation to spring compression, and then the bounce-back when the control spring rebounds has realized the regulation to the dynamics of closing the door promptly, does benefit to this time delay multistage accent power door closer and satisfies different operation requirements.

In some embodiments, the time-delay multi-stage force-regulating door closer further comprises a first check valve and a second check valve, wherein the first check valve and the second check valve are respectively installed at two ends of the piston and are installed in opposite directions. From this, through being equipped with first check valve and second check valve, can adjust the velocity of flow when opening the door and closing the door the interior hydraulic oil relative flow of first oil pocket and second oil pocket, do benefit to the regulation to the dynamics of closing the door, play the anticollision effect.

In some embodiments, the time-delay multi-section force-adjusting door closer further comprises an oil path, the oil path is arranged on the shell, and two ends of the oil path are respectively communicated with the first oil chamber and the second oil chamber. Therefore, the oil path is arranged, and the relative flow of the hydraulic oil in the two oil cavities can be facilitated.

In some embodiments, the multi-stage force-regulating door closer further includes a first speed-regulating valve, a second speed-regulating valve, and a third speed-regulating valve, the first speed-regulating valve, the second speed-regulating valve, and the third speed-regulating valve are all disposed on the housing, the first speed-regulating valve is communicated with the first oil chamber, the second speed-regulating valve and the third speed-regulating valve are all communicated with the second oil chamber, a first oil path and a second oil path are disposed in the housing, one end of the first oil path is communicated with the second oil chamber, the other end of the first oil path is communicated with the first oil chamber after being merged with the communication, the second speed-regulating valve is located on the first oil path, one end of the second oil path is communicated with the second oil chamber, the third speed-regulating valve is located on the second oil path, and the first speed-regulating valve. Therefore, the first speed regulating valve is arranged, so that the overall flow rate of hydraulic oil in the first oil cavity and the second oil cavity can be controlled, the door closing delay effect is achieved, the collision is prevented, the safe use is achieved, and the purpose of protecting a user is achieved; the second speed regulating valve is arranged, so that the speed of the door opening angle within the range of 180-15 degrees can be regulated; the third speed regulating valve is arranged, so that the speed of the door opening angle within the range of 15-0 degrees can be regulated; thereby realizing the multi-section adjustment of the door opening angle.

In some embodiments, the piston is provided with a concave part, the concave part is provided with a latch, and the outer side of the rotating shaft is provided with a rotating tooth meshed with the latch. Therefore, the piston is provided with the concave part, so that the installation of the rotating shaft can be facilitated, the installation space of the rotating shaft can be saved, and the whole volume is reduced.

In some embodiments, the time-delay multi-segment force-adjusting door closer further comprises two oil nets, wherein one oil net is positioned on one side of the first one-way valve, and the other oil net is positioned on one side of the second one-way valve. Therefore, the oil screen is arranged, and oil residues in cavities on two sides of the piston can be effectively filtered.

In some embodiments, the first one-way valve and the second one-way valve are identical in structure, the first one-way valve comprises a valve body and a ball body, the valve body is provided with a containing cavity, an oil outlet and a flow stopping port are arranged at two ends of the containing cavity, and the ball body is located in the containing cavity and corresponds to the oil outlet and the flow stopping port. Therefore, through the valve body and the ball body, the flow speed of the hydraulic oil can be limited by matching the ball body with the flow stopping port, and the hydraulic oil is conveniently acted on the ball body.

Drawings

Fig. 1 is a schematic cross-sectional structural view of the time-delay multi-stage force-adjusting door closer of the present invention;

fig. 2 is an explosion structure diagram of the delay multi-stage force-adjusting door closer of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Refer to fig. 1 to 2. Time delay multistage accent power door closer, including casing 1, piston 2, pivot 3, spring 4, adjusting screw 5 and adjusting nut 6, piston 2 is located in casing 1, the both sides of piston 2 are equipped with first oil pocket 7 and the second oil pocket 8 of intercommunication each other respectively, spring 4 is located first oil pocket 7, spring 4's one end and piston 2 looks butt, the other end is connected with adjusting nut 6, adjusting screw 5 cooperatees with casing 1, and stretch into first oil pocket 7, adjusting nut 6 cover is established on adjusting screw 5, pivot 3 runs through casing 1, and cooperate with piston 2. Wherein, the outer terminal surface of adjusting screw 5 is parallel and level mutually with the outer terminal surface of casing 1, and "ten" font regulation hole has been seted up to adjusting screw 5's outer end, makes things convenient for external force to act on adjusting screw 5. By arranging the adjusting screw rod 5 and the adjusting nut 6, when the door opening and closing force of the door closer needs to be increased, the adjusting screw rod 5 is rotated by external force, so that the adjusting nut 6 moves to one side of the spring, and the spring 4 is gradually compressed; conversely, rotating the adjusting screw 5 in the opposite direction causes the adjusting nut 6 to move away from the spring 4.

The utility model discloses a time delay multistage accent power door closer is when using, and the door leaf drives pivot 3 and rotates when the door leaf rotates through the one end fixed connection of external connecting rod with pivot 3. When the door is opened, the door leaf drives the rotating shaft 3 to rotate, and the rotating shaft 3 drives the piston 2 to move towards one side of the spring 4, so that the spring 4 is gradually compressed; at the same time, the hydraulic oil in the first oil chamber 7 gradually flows to the second oil chamber 8. When the door needs to be closed, the counter-elastic force of the spring 4 pushes the piston 2 to move reversely, so that the rotating shaft 3 is driven to rotate reversely, and the door leaf is closed.

The utility model discloses a time delay multistage accent power door closer still includes first check valve 9 and second check valve 10, and first check valve 9 is installed respectively at the both ends of piston 2 with second check valve 10, and installs opposite direction. Wherein the first non return valve 9 is located at the end of the piston close to the spring.

The time-delay multi-section force-adjusting door closer further comprises an oil way, the oil way is arranged on the shell 1, and two ends of the oil way are respectively communicated with the first oil cavity 7 and the second oil cavity 8.

The time-delay multi-section force-regulating door closer further comprises a first speed-regulating valve 30, a second speed-regulating valve 40 and a third speed-regulating valve 60, wherein the first speed-regulating valve 30, the second speed-regulating valve 40 and the third speed-regulating valve 60 are all arranged on the shell 1, the first speed-regulating valve 30 is communicated with the first oil cavity 7, the second speed-regulating valve 40 and the third speed-regulating valve 60 are all communicated with the second oil cavity 8, a first oil way and a second oil way are arranged in the shell 1, one end of the first oil way is communicated with the second oil cavity 8, the other end of the first oil way is communicated with the first oil cavity 7 after being converged with the communication, the second speed-regulating valve 40 is positioned on the first oil way, one end of the second oil way is communicated with the second oil cavity 8, the third speed-regulating valve 60 is positioned on the second oil way, and the first speed-regulating valve 30. Therefore, the first speed regulating valve 30 is arranged, so that the overall flow rate of the hydraulic oil in the first oil chamber 7 and the second oil chamber 8 can be controlled, the door closing delay effect is achieved, the collision is prevented, the safe use is achieved, and the purpose of protecting a user is achieved; by adjusting the second speed regulating valve 40, the speed of the door opening angle within the range of 180-15 degrees can be regulated, and the flowing speed of corresponding hydraulic oil is regulated; the third speed regulating valve 60 is arranged, so that the speed of the door opening angle within the range of 15-0 degrees can be regulated, and the door opening speed can be realized by regulating the flowing speed of corresponding hydraulic oil; thereby realizing the multi-section adjustment of the door opening angle.

The piston 2 is provided with a concave part 21, the concave part 21 is provided with a latch 22, and the outer side of the rotating shaft 3 is provided with a rotating tooth 31 meshed with the latch 22.

The time-delay multi-section force-adjusting door closer further comprises two oil nets 50, wherein one oil net 50 is located on one side of the first one-way valve 9, and the other oil net 50 is located on one side of the second one-way valve 10. Therefore, the filtering of impurities in the flowing process of the hydraulic oil is facilitated, and the service life of the piston is prolonged.

The first one-way valve 9 and the second one-way valve 10 have the same structure, the first one-way valve 9 comprises a valve body 91 and a ball 92, the valve body 91 is provided with an accommodating cavity 911, two ends of the accommodating cavity 911 are provided with an oil outlet 912 and a flow stopping port 913, the ball 92 is located in the accommodating cavity 911 and corresponds to the oil outlet 912 and the flow stopping port 913, namely, when the ball 92 is matched with the flow stopping port 913 and is matched with the closest state, the flow stopping can be achieved.

When the door is opened, the hydraulic oil in the first oil chamber 7 flows to the second oil chamber 8 through the oil path, the spring 4 is gradually compressed, meanwhile, the second check valve 10 is always in an open state, and the hydraulic oil can flow to the second oil chamber 8 through the first check valve 9 and then the second check valve 10. Along with the movement of the piston 2, the first check valve 9 is closed under the action of hydraulic pressure, hydraulic oil in the first oil chamber 7 can only flow to the second oil chamber 8 through an oil way, the flow speed is reduced, and a certain adjusting effect on the opening speed can be achieved.

When the door needs to be closed, the spring 4 rebounds, and moves to the side far away from the spring 4 under the action of the rebounding force of the spring 4, and the hydraulic oil in the second oil chamber 8 flows to the first oil chamber 7. When flowing, the hydraulic oil can flow through the oil path, meanwhile, the first check valve 9 is always in an open state, and the hydraulic oil can flow to the first oil chamber 7 through the second check valve 10 and then through the first check valve 9. Along with the increase of the angle of closing the door, hydraulic pressure in the second oil pocket 8 increases gradually, pushes the spheroid 92 of second check valve 10 to stagnant flow mouth 913 department, has slowed down the flow speed of hydraulic oil greatly to improved the resistance of piston 2 removal in-process, slowed down piston 2 moving speed, play the regulatory action to the dynamics of closing the door, and then make the rotational speed of pivot reduce, make the closing speed of door leaf reduce, avoided the rapid collision between door and the doorframe, realized anticollision function.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.

Claims

1. Time delay multistage accent power door closer, its characterized in that, including casing (1), piston (2), pivot (3), spring (4), adjusting screw (5) and adjusting nut (6), casing (1) is located in piston (2), the both sides of piston (2) are equipped with first oil pocket (7) and second oil pocket (8) that communicate each other respectively, spring (4) are located first oil pocket (7), the one end and piston (2) looks butt of spring (4), the other end is connected with adjusting nut (6), adjusting screw (5) cooperate with casing (1), and stretch into first oil pocket (7), adjusting nut (6) cover is established on adjusting screw (5), pivot (3) run through casing (1) to cooperate with piston (2).

2. The time-delay multi-segment force-adjusting door closer according to claim 1, further comprising a first one-way valve (9) and a second one-way valve (10), wherein the first one-way valve (9) and the second one-way valve (10) are respectively installed at two ends of the piston (2) and are installed in opposite directions.

3. The time-delay multi-section force-adjusting door closer according to claim 2, characterized by further comprising an oil path, wherein the oil path is arranged on the shell (1), and two ends of the oil path are respectively communicated with the first oil chamber (7) and the second oil chamber (8).

4. The door closer with the time delay and the multi-section force regulation according to claim 3, further comprising a first speed regulating valve (30), a second speed regulating valve (40) and a third speed regulating valve (60), wherein the first speed regulating valve (30), the second speed regulating valve (40) and the third speed regulating valve (60) are all arranged on the shell (1), the first speed regulating valve (30) is communicated with the first oil cavity (7), the second speed regulating valve (40) and the third speed regulating valve (60) are both communicated with the second oil cavity (8), a first oil path and a second oil path are arranged in the shell (1), one end of the first oil path is communicated with the second oil cavity (8), the other end of the first oil path is communicated with the first oil cavity (7) after being communicated and converged, the second speed regulating valve (40) is arranged on the first oil path, one end of the second oil path is communicated with the second oil cavity (8), and the third speed regulating valve (60) is arranged on the second oil path, the first speed regulating valve (30) is located at the junction of the first oil passage and the second oil passage.

5. The time-delay multi-segment force-adjusting door closer according to any one of claims 2 to 4, characterized in that the piston (2) is provided with a concave part (21), the concave part (21) is provided with a latch (22), and the outer side of the rotating shaft (3) is provided with a rotating tooth (31) engaged with the latch (22).

6. The time-delay multi-segment force-adjusting door closer according to claim 5, characterized by further comprising two oil nets (50), wherein one oil net (50) is positioned at one side of the first check valve (9) and the other oil net (50) is positioned at one side of the second check valve (10).

7. The time-delay multi-section force-adjusting door closer according to claim 6, wherein the first one-way valve (9) and the second one-way valve (10) have the same structure, the first one-way valve (9) comprises a valve body (91) and a ball (92), the valve body (91) is provided with an accommodating cavity (911), an oil outlet (912) and a flow stopping port (913) are arranged at two ends of the accommodating cavity (911), and the ball (92) is located in the accommodating cavity (911) and corresponds to the oil outlet (912) and the flow stopping port (913).