CN213627142U - Door closer with damping and buffering functions - Google Patents
Door closer with damping and buffering functions Download PDFInfo
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- CN213627142U CN213627142U CN202020795806.5U CN202020795806U CN213627142U CN 213627142 U CN213627142 U CN 213627142U CN 202020795806 U CN202020795806 U CN 202020795806U CN 213627142 U CN213627142 U CN 213627142U
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- door closer
- rack piston
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- valve
- damping
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Abstract
The utility model discloses and provides a simple structure, processing technology are short and the lower door closer that has damping buffer function of cost ratio. The utility model discloses a door closer mainly includes door closer body, rack piston, gear drive shaft, reset spring and supporting direction subassembly, rack piston left side is equipped with the check valve, and the right side is equipped with the damping cushion valve, the utility model discloses it is right mainly to adopt two kinds of different technical scheme the structure of damping cushion valve improves and simplifies, makes its processing cycle short and the cost ratio is lower. The utility model discloses but wide application in door closer field.
Description
Technical Field
The utility model relates to a door closer with damping buffer function.
Background
The door closer is a hydraulic press similar to a spring on the door head, and can be released after being compressed after the door is opened, so that the door is automatically closed.
The door closer mainly comprises a door closer body, a gear transmission shaft arranged in the door closer body, a rack plunger, a reset spring, a check valve, a bearing guide assembly arranged on the door closer body and matched with the gear transmission shaft, a throttle valve core, an end cover, a sealing ring and the like, wherein the bearing guide assembly plays a role of supporting the gear transmission shaft to rotate.
At present, a door closer at the high end of a part is provided with a door opening buffering function, namely, a door is opened quickly to a certain position to generate damping buffering, and the damping buffering force and range can be automatically adjusted according to the use requirement; the function is used for preventing a door or a lock from colliding with a wall surface when the door is opened forcibly and quickly, or preventing a person from losing weight and inclining forwards and falling down when the door is opened quickly during emergency escape, and the function is mainly realized by matching a one-way valve arranged on the right side of a rack piston with a hydraulic oil flow passage.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome prior art not enough, provide a simple structure, processing technology are short and the lower door closer that has damping buffer function of cost.
The utility model discloses mainly to the check valve on the rack piston, especially the damping cushion valve that the right side has the buffer function that opens the door simplifies, specifically has adopted two kinds of different technical scheme to realize.
The utility model discloses a technical scheme that door closer with damping buffer function adopted is: the door closer comprises a door closer body, a rack piston arranged in the door closer body, a gear transmission shaft meshed with the rack piston, a reset spring contacted with the rack piston, and a damping buffer valve arranged on the door closer body, wherein the gear transmission shaft is supported by the door closer body, the gear transmission shaft rotates to support a guide assembly and is arranged on a one-way valve arranged on the left side of the rack piston and a damping buffer valve arranged on the right side of the rack piston, and the damping buffer valve comprises a valve body, a ball arranged in the valve body and a split pin vertically inserted into the valve body and used for stopping the ball.
Further, the valve body is arranged in the containing hole in the right side of the rack piston, and the valve body is fixed with the rack piston in an interference fit mode.
Further, the valve body is of an internal hollow structure, a liquid flow channel is arranged inside the valve body, and the cotter pin penetrates through the liquid flow channel.
Further, a ball stopping portion is arranged on one side, close to the rack piston, of the liquid flow channel, and the upper side and the lower side of the ball stopping portion are at an angle of 118 degrees.
The utility model discloses the technical scheme that door closer that second kind has damping buffer function adopted is: the door closer includes the door closer body and sets up this internal rack piston of door closer, with rack piston meshing's gear drive shaft, with reset spring, the setting of rack piston contact are in support on the door closer body gear drive shaft pivoted supporting guide assembly and setting are in the damping cushion valve on left check valve of rack piston and right side, the damping cushion valve includes ball and lock sleeve, the rack piston is provided with the ball accommodation hole, the ball sets up the ball accommodation hole, the lock sleeve sets up the right side of ball accommodation hole and with rack piston interference fit is fixed.
Furthermore, a locking sleeve runner is transversely arranged in the middle of the locking sleeve, and the diameter of the locking sleeve runner is smaller than that of the ball.
Further, a ball restricting portion is provided at a left side of the ball receiving hole, and upper and lower sides of the ball restricting portion are at an angle of 118 °.
The utility model has the advantages that: the utility model discloses a door closer host computer mainly includes door closer body and sets up in this internal rack piston of door closer, with rack piston meshing's gear drive shaft, with rack piston contact's reset spring, setting are in door closer body support gear drive shaft pivoted supporting guide assembly and set up in the left check valve of rack piston and the damping cushion valve on right side, on the basis that satisfies door closer damping cushion function normal realization, improve and simplify damping cushion valve's structure, adopt two kinds of different technical scheme to realize respectively, the first technical scheme is, damping cushion valve includes the valve body, set up in the ball in the valve body and vertically insert on the valve body and play the split pin of backstop effect to the ball; another kind of technical scheme is, damping cushion valve includes ball and lock sleeve, the rack piston is provided with the ball accommodation hole, the ball sets up the ball accommodation hole, the lock sleeve sets up the right side of ball accommodation hole and with rack piston interference fit is fixed, and this technical scheme compares that first kind omits a valve body more, through above-mentioned two kinds of technical scheme, compares with current door closer damping cushion valve, so the utility model discloses simple structure, processing technology are short and the cost ratio is lower.
Drawings
Fig. 1 is a schematic diagram of an explosion structure according to a first embodiment of the present invention;
fig. 2 is a sectional view of the rack piston when the door of the first embodiment of the present invention is opened;
fig. 3 is a sectional view of the rack piston as soon as the door of the embodiment of the present invention is closed;
FIG. 4 is a cross-sectional view of a damper cushion valve according to an embodiment of the present invention;
fig. 5 is a sectional view of a double rack piston according to an embodiment of the present invention.
Detailed Description
The utility model discloses the door closer utilizes hydraulic system principle to work, and it includes door closer host computer, connecting rod, rocker and round pin axle, the door closer host computer passes through connecting rod and rocker and connects door leaf and door frame, guarantees that the door is opened the back, accurate, timely closing to initial position.
The present invention will be described in detail with reference to the following embodiments.
The first embodiment is as follows:
as shown in fig. 1, 2, 3 and 4, the door closer main machine mainly includes a door closer body 1, and a hydraulic transmission assembly and a supporting guide assembly which are arranged in the door closer body 1, the door closer body 1 is a cavity with a horizontal hollow interior, hydraulic oil is filled in the cavity, a hydraulic oil flow passage communicated with the cavity is arranged on a side wall of the door closer body 1, the hydraulic transmission assembly includes a rack piston 2, a gear transmission shaft 3, a return spring 4, a spring baffle 7 and a connecting rod 8, the rack piston 2 is engaged with a gear part of the gear transmission shaft 3, a rear end of the rack piston 2 is contacted with a front end of the return spring 4, a rear end of the return spring 4 is contacted with the spring baffle 7, the door closer body 1 is provided with a left end cover 9 and a right end cover 10, the left end cover 9 is adapted to a left side of the door closer body 1 and seals the left side of the cavity, the right end cover 10 is matched with the right side of the door closer body 1 and seals the right side of the cavity, the right end cover 10 is connected with the spring baffle 7 through the connecting rod 8, the supporting and guiding assembly is provided with an upper group and a lower group which are respectively arranged above and below the door closer body 1 and rotatably connected with the gear transmission shaft 3, and simultaneously both play a role of dynamic sealing, the left side of the rack piston 2 is provided with a one-way valve 5 which can enable hydraulic oil to flow in a one-way manner, the right side of the rack piston 2 is provided with a damping buffer valve 6 which can prevent the hydraulic oil on the left side from flowing into the rack piston 2, the damping buffer valve 6 actually plays a role of one-way conduction in the embodiment, the damping buffer valve 6 has the same structure as the one-way valve 5 in the past design of a company, so that the structure is more complex, and two adjustable throttle valves 11 are arranged on a hydraulic, the door closer is opened and closed through the structure, when the door closer is opened, hydraulic oil in the door closer body 1 can enter the oil storage cavity inside the rack piston 2 through a hydraulic oil flow passage, and then flows to the cavity on the left side of the door closer body 1 through the one-way valve.
Company's process analysis back, right damping cushion valve's structure is simplified and is designed, damping cushion valve 6 includes valve body 61, sets up ball 62 and the vertical insertion in the valve body 61 on the valve body 61 and right ball 62 plays the split pin 63 of backstop effect, valve body 61 sets up in the accommodation hole 21 on rack piston 2 right side, valve body 61 with rack piston 2 interference fit is fixed, valve body 61 is inside hollow structure, the inside of valve body 61 is provided with flow channel 611, split pin 63 passes flow channel 611, flow channel 611 is close to one side of rack piston 2 is provided with ball backstop portion 612, the last downside of ball backstop portion 612 is 118 jiaos.
The working principle of the embodiment is as follows: when the door closer is matched with a door leaf to open the door, external force is applied to the door leaf, at the moment, the connecting rod drives the gear transmission shaft 3 to rotate on the door closer body 1, the gear transmission shaft 3 drives the rack piston 2 to overcome the elastic force of the reset spring 4 and then slide to the right side, hydraulic oil on the right side in the door closer body 1 is stressed and extruded, the damping buffer valve 6 plays a role in one-way stopping, the hydraulic oil only can flow to an oil storage cavity in the rack piston 2 after passing through a hydraulic oil flow passage on the door closer body 1, and the one-way valve 5 is opened through oil pressure, so that the hydraulic oil flows to an oil return cavity on the left side from a right side stroke cavity, and the process of opening the door leaf is completed; when the user releases his hands and loses the action of external force, the rack piston 2 slides leftwards under the action of the accumulated elastic force of the return spring 4, the hydraulic oil in the oil return cavity is stopped by the one-way valve 5, flows into the oil storage cavity in the rack piston 2 from the hydraulic oil flow passage on the door closer body 1, and flows into the stroke cavity through the damping buffer valve 6, so that the door leaf is closed.
Example two:
as shown in fig. 5, the structure and basic principle of the present embodiment are substantially the same as those of the first embodiment, except that the structure of the damping cushion valve 6 is further simplified, a valve body 61 is omitted, and the damping cushion valve is directly mounted on the right side of the rack piston 2, specifically, the damping cushion valve 6 includes a ball 62 and a locking sleeve 64, the rack piston 2 is provided with a ball receiving hole 22, the ball 62 is arranged in the ball receiving hole 22, the locking sleeve 64 is arranged at the right side of the ball receiving hole 22 and fixed with the rack piston 2 in an interference fit manner, a locking sleeve channel 641 is transversely arranged in the middle of the locking sleeve 64, the diameter of the locking sleeve channel 641 is smaller than that of the ball 62, a ball restricting portion 212 is provided at a left side of the ball receiving hole 22, and upper and lower sides of the ball restricting portion 212 are at an angle of 118 °.
The utility model discloses be applied to the technical field of door closer.
Variations and modifications to the above-described embodiments may become apparent to those skilled in the art from the disclosure and teachings of the above description. Therefore, the present invention is not limited to the above-mentioned embodiments, and any obvious modifications, replacements or variations made by those skilled in the art on the basis of the present invention belong to the protection scope of the present invention.
Claims (7)
1. The utility model provides a door closer with damping buffer function, it includes door closer body (1) and sets up rack piston (2) in door closer body (1), with gear drive shaft (3) of rack piston (2) meshing, with reset spring (4) of rack piston (2) contact, set up and be in support on door closer body (1) gear drive shaft (3) pivoted supporting guide assembly and setting are in damping buffer valve (6) on left check valve (5) and the right side of rack piston (2), its characterized in that: the damping cushion valve (6) comprises a valve body (61), a ball (62) arranged in the valve body (61) and a split pin (63) which is vertically inserted into the valve body (61) and plays a role in stopping the ball (62).
2. A door closer having a damping cushion function according to claim 1, wherein: the valve body (61) is arranged in the accommodating hole (21) on the right side of the rack piston (2), and the valve body (61) is fixed with the rack piston (2) in an interference fit mode.
3. A door closer having a damping cushion function according to claim 1, wherein: the valve body (61) is of an internal hollow structure, a liquid flow channel (611) is arranged inside the valve body (61), and the split pin (63) penetrates through the liquid flow channel (611).
4. A door closer having a damping cushion function according to claim 3, wherein: one side of the liquid flow channel (611) close to the rack piston (2) is provided with a ball stopping part (612), and the upper side and the lower side of the ball stopping part (612) form an angle of 118 degrees.
5. The utility model provides a door closer with damping buffer function, it includes door closer body (1) and sets up rack piston (2) in door closer body (1), with gear drive shaft (3) of rack piston (2) meshing, with reset spring (4) of rack piston (2) contact, set up and be in support on door closer body (1) gear drive shaft (3) pivoted supporting guide assembly and setting are in damping buffer valve (6) on left check valve (5) and the right side of rack piston (2), its characterized in that: damping cushion valve (6) include ball (62) and lock sleeve (64), rack piston (2) are provided with ball receiving hole (22), ball (62) set up ball receiving hole (22), lock sleeve (64) set up the right side of ball receiving hole (22) and with rack piston (2) interference fit is fixed.
6. The door closer with a damping buffer function according to claim 5, characterized in that: the middle part of the locking sleeve (64) is transversely provided with a locking sleeve runner (641), and the diameter of the locking sleeve runner (641) is smaller than that of the ball (62).
7. The door closer with a damping buffer function according to claim 5, characterized in that: a ball limiting part (212) is arranged on one left side of the ball accommodating hole (22), and the upper side and the lower side of the ball limiting part (212) form an angle of 118 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020795806.5U CN213627142U (en) | 2020-05-14 | 2020-05-14 | Door closer with damping and buffering functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020795806.5U CN213627142U (en) | 2020-05-14 | 2020-05-14 | Door closer with damping and buffering functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213627142U true CN213627142U (en) | 2021-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020795806.5U Active CN213627142U (en) | 2020-05-14 | 2020-05-14 | Door closer with damping and buffering functions |
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| CN (1) | CN213627142U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115419338A (en) * | 2022-09-16 | 2022-12-02 | 中国长江电力股份有限公司 | Unlocking and locking device during hydraulic rolling and using method |
-
2020
- 2020-05-14 CN CN202020795806.5U patent/CN213627142U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115419338A (en) * | 2022-09-16 | 2022-12-02 | 中国长江电力股份有限公司 | Unlocking and locking device during hydraulic rolling and using method |
| CN115419338B (en) * | 2022-09-16 | 2024-03-29 | 中国长江电力股份有限公司 | Hydraulic delay unlocking and locking device and use method |
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