CN215056433U

CN215056433U - Cam type hidden door closer

Info

Publication number: CN215056433U
Application number: CN202120581029.9U
Authority: CN
Inventors: 梁健辉; 梁铭坚
Original assignee: Zhaoqing Huishida Hardware Product Co ltd
Current assignee: Zhaoqing Huishida Hardware Product Co ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-12-07
Anticipated expiration: 2031-03-22

Abstract

The utility model discloses a cam-type hides door closer, including casing, spring, piston, accent power subassembly and camshaft, in spring, piston and camshaft all located the casing, the both sides of piston are equipped with the first oil pocket and the second oil pocket that are linked together respectively, and the spring is located second oil pocket, the one end and the piston looks butt of spring, and the casing outside is stretched out to the one end of camshaft, is equipped with the locating wheel on the piston, and the camshaft cooperatees with the locating wheel, and the other end of accent power subassembly and spring contacts. The door leaf is connected with the extending end of the cam shaft, and the cam shaft can be driven to rotate through the rotation of the door leaf to drive the piston to move, so that the compression of the spring is realized; the opening and closing speed of the door leaf is reduced by the rebound force of the spring and the oil pressure action in the first oil cavity and the second oil cavity; the service life of the whole body is greatly prolonged, and the performance stability in use is greatly improved; through adjusting the accent power subassembly, can adjust the compression degree of spring to the realization is to opening the regulation of closing the door dynamics.

Description

Cam type hidden door closer

Technical Field

The utility model belongs to a closer especially relates to a cam-type hides door closer.

Background

When the existing door closer is used, through the matching of the gear in the door closer and the latch on the piston, the door leaf rotates to drive the rotating shaft of the door closer to rotate, the rotating shaft drives the gear to rotate, so that the piston is driven to move under the action of the latch, and the control and regulation of the door opening and closing speed are realized under the action of the piston and the spring in the door closer. This kind of door closer, when using, the pivot is through the cooperation of latch and latch when rotating, rotates the in-process, because the effort is great, appears the disconnected tooth phenomenon of latch on latch and the gear on the piston easily, influences the life of product.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can solve at least one kind in the above-mentioned problem cam-type hidden door closer.

According to the utility model discloses an aspect provides cam-type hides door closer, including casing, spring, piston and camshaft, in spring, piston and camshaft all located the casing, the both sides of piston are equipped with the first oil pocket and the second oil pocket that are linked together respectively, and the spring is located the second oil pocket, the one end and the piston looks butt of spring, and the casing outside is stretched out to the one end of camshaft, is equipped with the locating wheel on the piston, and the camshaft cooperatees with the locating wheel.

The utility model has the advantages that: the door leaf is connected with the extending end of the camshaft, the camshaft can be driven to rotate through the rotation of the door leaf, and the piston can be driven to move through the matching of the camshaft and the positioning wheel when the camshaft rotates, so that the compression of the spring is realized; through the bounce of spring to and the oil pressure effect in first oil pocket and the second oil pocket, open and close the speed and play the deceleration effect to the door leaf, realized the cushioning effect that the door leaf opened and closed. This cam-type hides door closer through the cooperation of camshaft and locating wheel, and has replaced the cooperation of gear among the prior art and latch, has improved holistic life greatly to and the stability of performance when using.

In some embodiments, the cam-type hidden door closer further includes a force adjusting assembly and a mounting panel, the mounting panel is fixed on the upper end surface of the housing, the force adjusting assembly includes a first force adjusting gear, a second force adjusting gear, a force adjusting screw, a transmission rod, a force adjusting screw and a lifting plate, the first force adjusting gear is sleeved on the force adjusting screw, one end of the force adjusting screw is arranged on the mounting panel, the second force adjusting gear is meshed with the first force adjusting gear, one end of the transmission rod is fixed on the second force adjusting gear, the force adjusting screw is fixed with the other end of the transmission rod, the lifting plate is sleeved on the force adjusting screw, and the other end of the spring is abutted against the lifting plate. From this, through being equipped with the accent power subassembly, can be through rotating first accent power gear, finally adjust the position of lift piece on the accent power screw rod to the compression degree of spring has been controlled, and then adjusts the dynamics of opening the door of door leaf, satisfies the operation requirement of different occasions.

In some embodiments, the force adjusting assembly further comprises a pressing plate, the other end of the transmission rod is provided with a connector, the pressing plate is fixed on the force adjusting screw rod, the pressing plate is provided with a connecting hole, and the connector is fixedly matched with the connecting hole. Therefore, the pressing plate is arranged, the force adjusting screw rod can be conveniently connected with the transmission rod, and the transmission rod can conveniently drive the force adjusting screw rod to rotate.

In some embodiments, the camshaft includes a shaft and a cam, one end of the shaft extends out of the housing, the other end of the shaft is matched with the bottom of the housing, the cam is arranged on the shaft, and the cam is arranged on one side of the positioning wheel and matched with the positioning wheel. Therefore, the movement of the piston can be conveniently pushed through the matching of the cam and the positioning wheel.

In some embodiments, the shaft is a unitary structure with the cam. From this, make things convenient for the production and processing of camshaft, and guaranteed the intensity of camshaft, improved the life of camshaft.

In some embodiments, the piston includes a body, an opening is provided above the body, a through hole is provided at the bottom of the body, a U-shaped groove is provided at one side of the piston, the positioning wheel is provided in the U-shaped groove, the cam is provided in the opening of the body, and the other end of the shaft rod penetrates through the through hole. Therefore, the U-shaped groove is arranged, so that the positioning wheel can be conveniently installed, and the positioning wheel is conveniently contacted and matched with the cam.

In some embodiments, an oil passage is provided on the housing, the first oil chamber and the second oil chamber are communicated through the oil passage, and a speed regulating valve is provided on the oil passage. Therefore, the speed regulating valve is arranged, so that the flowing speed of hydraulic oil in the first oil cavity and the second oil cavity can be regulated, and the opening and closing speed of the door leaf can be conveniently controlled.

In some embodiments, the first force adjustment gear and the second force adjustment gear are both located outside of the housing. Therefore, the first force adjusting gear and the second force adjusting gear can be conveniently installed, the size of the whole shell is not affected, and the installation is convenient.

Drawings

Fig. 1 is a schematic structural view of a cam-type hidden door closer of the present invention;

fig. 2 is an exploded view of the cam-type hidden door closer of the present invention;

fig. 3 is a schematic cross-sectional view of the cam-type hidden door closer of the present invention;

fig. 4 is a schematic structural diagram of a piston and a positioning wheel in the cam-type hidden 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 4. Cam-type hides door closer, including casing 1, spring 2, piston 3 and camshaft 4, in casing 1 was all located to spring 2, piston 3 and camshaft 4, the both sides of piston 3 were equipped with first oil pocket 5 and the second oil pocket 6 that are linked together respectively, spring 2 is located second oil pocket 6, spring 2's one end and piston 3 looks butt, the casing 1 outside is stretched out to the one end of camshaft 4, be equipped with locating wheel 7 on the piston 3, camshaft 4 cooperatees with locating wheel 7, camshaft 4 contacts with locating wheel 7.

The utility model discloses a cam-type hides door closer is when using, with casing fixed mounting back, camshaft 4 stretches out the pivot fixed connection of the one end of casing 1 and door leaf for the door leaf rotates and can drive camshaft 4 and rotate. When the door leaf is opened, the door leaf drives the camshaft 4 to rotate, and the camshaft 4 acts on the positioning wheel 7 when rotating, so that the piston 3 is pushed to move towards one side of the spring 2, and the spring 2 is compressed; meanwhile, the hydraulic oil in the second oil chamber 6 flows to the first oil chamber 5. After the external force is cancelled, the piston 3 is pushed to move reversely under the action of the rebound force of the spring 2, and the positioning wheel 7 drives the cam shaft 4 to rotate, so that the door leaf is driven to close, and the effect of automatically closing the door is realized; at the same time, the hydraulic oil in the first oil chamber 5 flows to the second oil chamber 6.

In the in-service use process, for the convenience of the contact cooperation of locating wheel 7 and camshaft 4, guarantee camshaft 4's rotation, locating wheel 7 is needle bearing, installs on piston 3 through the pin.

The utility model discloses a cam-type hides door closer still includes power of accent subassembly 8 and mounting panel 9, and mounting panel 9 passes through the up end of fix with screw at casing 1. The force adjusting assembly 8 comprises a first force adjusting gear 81, a second force adjusting gear 82, a force adjusting screw 83, a transmission rod 84, a force adjusting screw 85 and a lifting piece 86, wherein the first force adjusting gear 81 is sleeved on the force adjusting screw 83, one end of the force adjusting screw 83 is arranged on the mounting panel 9, the second force adjusting gear 82 is meshed with the first force adjusting gear 81, one end of the transmission rod 84 is fixed on the second force adjusting gear 82, the force adjusting screw 85 is fixed with the other end of the transmission rod 84, the lifting piece 86 is sleeved on the force adjusting screw 85, and the other end of the spring 2 is abutted to the lifting piece 86. Wherein, the first force adjusting gear 81 and the second force adjusting gear 82 are both bevel gears; the lifting piece 86 is in threaded fit with the force adjusting screw 85; the top end of the force adjusting screw 83 is provided with an inner hexagonal counter bore, so that the effect of a tool for screwing a hexagonal head of the screw is facilitated, the force adjusting screw 83 is rotated by an inner hexagonal thumb to adjust the force, and the adjustment is convenient.

In the using process, an external force acts on the force adjusting screw 83 to drive the force adjusting screw 83 to rotate, the force adjusting screw 83 drives the first force adjusting gear 81 to rotate, and the first force adjusting gear 81 drives the second force adjusting gear 82 to rotate; when the second force-adjusting gear 82 rotates, the transmission rod 84 is driven by the second force-adjusting gear 82 to rotate, and the transmission rod 84 drives the force-adjusting screw 85 to rotate; during the rotation of the force adjusting screw 85, the lifting plate 86 moves relative to the force adjusting screw 85, so as to adjust the degree of compression of the spring 2 by the lifting plate 86. When the door opening force of the door leaf needs to be increased, the force adjusting screw 83 is rotated, so that the lifting sheet 86 moves to one side of the spring 2, the compression degree of the spring 2 is increased, and larger spring rebound force needs to be overcome when the lifting sheet moves. On the contrary, when the door opening force of the door leaf needs to be reduced, the force adjusting screw 83 is rotated reversely, so that the lifting piece 86 moves to the side far away from the spring 2, and the compression degree of the spring 2 is reduced.

The force adjusting assembly 8 further comprises a pressing plate 87, the other end of the transmission rod 84 is provided with a connecting head 841, the pressing plate 87 is fixedly sleeved on the force adjusting screw rod 85, the pressing plate 87 is provided with a connecting hole, and the connecting head 841 is fixedly matched with the connecting hole. Wherein, connector 841 hexagonal connector, the connecting hole on the clamp plate 87 is interior hexagonal counter bore, through the cooperation of connector 841 with the connecting hole, realizes the fixed of transfer line 84 and clamp plate 87 to the transfer line rotates and drives power screw 85 and rotate, conveniently adjusts the dynamics of opening the door.

The camshaft 4 comprises a shaft rod 41 and a cam 42, one end of the shaft rod 41 extends out of the shell 1, the other end of the shaft rod is matched with the bottom of the shell 1, the cam 42 is arranged on the shaft rod 41, and the cam 42 is positioned on one side of the positioning wheel 7 and matched with the positioning wheel 7. When the projection of the cam 42 comes into contact with the positioning wheel 7, the cam 42 is able to push the positioning wheel 7 and therefore the piston 3 to move.

The shaft 41 and the cam 42 are integrally formed. From this, make things convenient for camshaft 4's production and processing, and guaranteed camshaft 4's intensity, improved camshaft 4's life.

The piston 3 comprises a body 31, an opening 311 is arranged above the body 31, a through hole 312 is arranged at the bottom of the body 31, a U-shaped groove 313 is arranged on one side of the piston 3, the positioning wheel 7 is arranged in the U-shaped groove 313, the cam 42 is positioned in the opening 311 of the body 31, and the other end of the shaft rod 41 penetrates through the through hole 312. In order to facilitate the installation of the shaft rod 41 on the casing 1, an installation hole is formed in the inner wall of the bottom of the casing 1, a bearing is installed in the installation hole, and the bottom end of the shaft rod 41 penetrates through the through hole 312 and then is sleeved on the bearing, so that the rotation of the shaft rod 41 is facilitated. Wherein, U type groove 313 is seted up to opening 311 one side, and camshaft 4 after the convenient installation contacts with positioning wheel 7 in U type groove 313 and cooperates.

An oil path is arranged on the shell 1, the first oil chamber 5 and the second oil chamber 6 are communicated through the oil path, and a speed regulating valve 10 is arranged on the oil path. Through the regulation to governing valve 10, can control the velocity of flow of hydraulic oil on the oil circuit to conveniently control the speed of opening the door and closing the door, satisfy different operation requirements.

The first force adjustment gear 81 and the second force adjustment gear 82 are both located outside the housing 1. Therefore, the first force adjusting gear 81 and the second force adjusting gear 82 can be conveniently installed and adjusted, the size of the whole shell 1 is not affected, and the installation is convenient.

The above is only the preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the inventive concept, and these all fall into the protection scope of the present invention.

Claims

1. Cam type hidden door closer, which is characterized by comprising a shell (1), a spring (2), a piston (3) and a cam shaft (4), wherein the spring (2), the piston (3) and the cam shaft (4) are all arranged in the shell (1), a first oil cavity (5) and a second oil cavity (6) which are communicated with each other are respectively arranged on two sides of the piston (3), the spring (2) is positioned in the second oil cavity (6), one end of the spring (2) is abutted to the piston (3), one end of the cam shaft (4) extends out of the shell (1), a positioning wheel (7) is arranged on the piston (3), and the cam shaft (4) is matched with the positioning wheel (7).

2. The cam-type hidden door closer according to claim 1, further comprising a force adjusting assembly (8) and a mounting panel (9), wherein the mounting panel (9) is fixed on the upper end surface of the housing (1), the force adjusting assembly (8) comprises a first force adjusting gear (81), a second force adjusting gear (82), a force adjusting screw (83), a transmission rod (84), a force adjusting screw (85) and a lifting plate (86), the first force adjusting gear (81) is sleeved on the force adjusting screw (83), one end of the force adjusting screw (83) is arranged on the mounting panel (9), the second force adjusting gear (82) is meshed with the first force adjusting gear (81), one end of the transmission rod (84) is fixed on the second force adjusting gear (82), the force adjusting screw (85) is fixed with the other end of the transmission rod (84), and the lifting plate (86) is sleeved on the force adjusting screw (85), the other end of the spring (2) is abutted against the lifting sheet (86).

3. The cam-type hidden door closer according to claim 2, wherein the force adjusting assembly (8) further comprises a pressing plate (87), the other end of the transmission rod (84) is provided with a connecting head (841), the pressing plate (87) is fixed on the force adjusting screw rod (85), the pressing plate (87) is provided with a connecting hole, and the connecting head (841) is fixedly matched with the connecting hole.

4. The cam-type hidden door closer according to claim 3, characterized in that the cam shaft (4) comprises a shaft rod (41) and a cam (42), one end of the shaft rod (41) extends out of the shell (1), the other end of the shaft rod is matched with the bottom of the shell (1), the cam (42) is arranged on the shaft rod (41), and the cam (42) is arranged on one side of the positioning wheel (7) and is matched with the positioning wheel (7).

5. The hidden cam door closer according to claim 4, wherein the shaft (41) and the cam (42) are of an integral structure.

6. The cam-type hidden door closer according to claim 4 or 5, wherein the piston (3) comprises a body (31), an opening (311) is formed above the body (31), a through hole (312) is formed in the bottom of the body (31), a U-shaped groove (313) is formed in one side of the piston (3), the positioning wheel (7) is arranged in the U-shaped groove (313), the cam (42) is located in the opening (311) of the body (31), and the other end of the shaft rod (41) penetrates through the through hole (312).

7. The cam type hidden door closer according to any one of claims 1 to 5, wherein an oil path is arranged on the shell (1), the first oil chamber (5) and the second oil chamber (6) are communicated through the oil path, and a speed regulating valve (10) is arranged on the oil path.

8. The cam-type hidden door closer according to claim 2, characterized in that the first force adjustment gear (81) and the second force adjustment gear (82) are both located outside the housing (1).