CN210768308U

CN210768308U - Torsion bar type door closer

Info

Publication number: CN210768308U
Application number: CN201920774652.9U
Authority: CN
Inventors: 丰国民
Original assignee: Suzhou Yuanjiachen Machinery Engineering Co ltd
Current assignee: Suzhou Yuanjiachen Machinery Engineering Co ltd
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-06-16
Anticipated expiration: 2029-05-28

Abstract

The utility model discloses a torsion bar type door closer, comprises a box bod, the inner chamber swing joint of box body has the rotary rod, the top of rotary rod is run through to the outside of box body and the cover is equipped with torsion bar assembly, the surface cover of rotary rod is equipped with the gear, the rear side meshing of gear has the pinion rack, the first piston of left side fixedly connected with of pinion rack, the left side intercommunication of first piston has first check valve, the right side fixedly connected with second piston of pinion rack, the left side intercommunication of second piston has the second check valve. The utility model discloses a set up box body, rotary rod, torsion bar subassembly, gear, pinion rack, first piston, first check valve, second piston, second check valve, first spring, through-hole, recess, slider, second spring, third piston, lead the cooperation of oil groove, locating piece, mounting hole, sealing washer and spout and use, solved the problem that current torsion bar formula door closer structure is complicated, manufacturing cost is high and life is short.

Description

Torsion bar type door closer

Technical Field

The utility model relates to a door closer technical field specifically is a torsion bar formula door closer.

Background

The door closer is the overhead hydraulic press of a similar spring of door, can release after compressing when the door is opened, closes the door automatically, has like the effect of spring door, can guarantee that the door is opened the back, accurate, timely closes initial position, but current door closer's structure is complicated, and manufacturing cost is high moreover, and internals leads to the damage extremely easily after long-time use, to the above-mentioned problem, the utility model provides a simple structure, low in production cost and long service life's torsion bar formula door closer.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a torsion bar formula door closer possesses simple structure, low in production cost and long service life's advantage, has solved the problem that current torsion bar formula door closer structure is complicated, high and the life is short of manufacturing cost.

In order to achieve the above object, the utility model provides a following technical scheme: a torsion bar type door closer comprises a box body, wherein the inner cavity of the box body is movably connected with a rotary rod, the top end of the rotary rod penetrates through the outer side of the box body and is sleeved with a torsion bar assembly, a gear is sleeved on the surface of the rotary rod, a toothed plate is meshed on the rear side of the gear, a first piston is fixedly connected with the left side of the toothed plate, a first check valve is communicated with the left side of the first piston, a second piston is fixedly connected with the right side of the toothed plate, a second check valve is communicated with the left side of the second piston, a first spring is fixedly connected with the right side of the second piston, the right side of the first spring is fixedly connected with the inner wall of the box body, a through hole is formed in the right side of the bottom of the inner cavity of the box body, a groove is formed in the bottom of the inner cavity of the through hole, a sliding block is movably connected with the inner cavity of the groove, the top fixedly connected with third piston of slider, the top of third piston extends to the inner chamber of through-hole, the oil groove has been seted up to the left side of box inner chamber bottom, lead one side and the recess intercommunication of oil groove.

Preferably, the top and the bottom of the two sides of the box body are fixedly connected with positioning blocks, and mounting holes are formed in the front sides of the positioning blocks.

Preferably, the top of the inner cavity of the box body is fixedly connected with a sealing ring, and the inner cavity of the sealing ring is movably connected with the rotating rod.

Preferably, the sliding grooves are formed in the two sides of the inner cavity of the groove, and the two sides of the sliding block are movably connected with the inner walls of the sliding grooves.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a set up box body, rotary rod, torsion bar subassembly, gear, pinion rack, first piston, first check valve, second piston, second check valve, first spring, through-hole, recess, slider, second spring, third piston, lead the cooperation of oil groove, locating piece, mounting hole, sealing washer and spout and use, solved the problem that current torsion bar formula door closer structure is complicated, manufacturing cost is high and life is short.

2. The utility model discloses a cooperation that sets up locating piece and mounting hole is used, has made things convenient for the user to install the location to the box body, through setting up the sealing washer, has effectually prevented the outside of the oil overflow box body in the box body, through setting up the spout, has played the limiting displacement to the slider, has made things convenient for the activity of slider simultaneously.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of a partial structure of the present invention;

fig. 3 is a partially enlarged view of a portion a in fig. 2 according to the present invention.

In the figure: the device comprises a box body 1, a rotating rod 2, a torsion bar assembly 3, a gear 4, a toothed plate 5, a first piston 6, a first check valve 7, a second piston 8, a second check valve 9, a first spring 10, a through hole 11, a groove 12, a sliding block 13, a second spring 14, a third piston 15, an oil guide groove 16, a positioning block 17, an installation hole 18, a sealing ring 19 and a sliding groove 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, a torsion bar type door closer includes a box body 1, a rotating bar 2 is movably connected in an inner cavity of the box body 1, a torsion bar assembly 3 is sleeved on the top end of the rotating bar 2, a gear 4 is sleeved on the surface of the rotating bar 2, a toothed plate 5 is engaged with the rear side of the gear 4, a first piston 6 is fixedly connected to the left side of the toothed plate 5, a first check valve 7 is communicated with the left side of the first piston 6, a second piston 8 is fixedly connected to the right side of the toothed plate 5, a second check valve 9 is communicated with the left side of the second piston 8, a first spring 10 is fixedly connected to the right side of the second piston 8, the right side of the first spring 10 is fixedly connected to the inner wall of the box body 1, a through hole 11 is formed in the right side of the bottom of the inner cavity of the box body 1, a groove 12 is formed in the bottom of the inner cavity of the through hole 11, a, the bottom of the second spring 14 is fixedly connected with the inner wall of the groove 12, the top of the slider 13 is fixedly connected with a third piston 15, the top of the third piston 15 extends to the inner cavity of the through hole 11, the left side of the bottom of the inner cavity of the box body 1 is provided with an oil guide groove 16, one side of the oil guide groove 16 is communicated with the groove 12, the top and the bottom of the two sides of the box body 1 are both fixedly connected with a positioning block 17, the front side of the positioning block 17 is provided with a mounting hole 18, the top of the inner cavity of the box body 1 is fixedly connected with a sealing ring 19, the inner cavity of the sealing ring 19 is movably connected with the rotary rod 2, the two sides of the inner cavity of the groove 12 are both provided with chutes 20, the two sides of the slider 13 are both movably connected with the inner wall of the chutes 20, the mounting block 17 and the mounting hole 18 are matched, through setting up spout 20, the limiting displacement to slider 13 has been played, the activity of slider 13 has been made things convenient for simultaneously, through setting up box body 1, rotary rod 2, torsion bar component 3, gear 4, pinion rack 5, first piston 6, first check valve 7, second piston 8, second check valve 9, first spring 10, through-hole 11, recess 12, slider 13, second spring 14, third piston 15, lead oil groove 16, locating piece 17, mounting hole 18, the cooperation of sealing washer 19 and spout 20 is used, the problem that current torsion bar formula door closer structure is complicated, high in production cost and life is short has been solved.

When the door is opened by a user, the box body 1 can move along with the door, in the moving process of the box body 1, the torsion bar assembly 3 can drive the rotary rod 2 to rotate, the rotary rod 2 drives the gear 4 to rotate, the gear 4 is meshed with the toothed plate 5 to drive the first piston 6 and the second piston 8 to move, the second piston 8 extrudes the first spring 10 rightwards in the moving process, then hydraulic oil on the right side of the inner cavity of the box body 1 enters the through hole 11, the hydraulic oil extrudes the third piston 15 downwards, the third piston 15 extrudes the second spring 14 downwards through the sliding block 13, then the hydraulic oil flows through the oil guide groove 16 through the groove 12 and enters the left side of the box body 1, when the door needs to be closed, the second spring 14 can form a pushing force on the second piston 8, and the hydraulic oil can enter the inner cavity of the box body 1 again through the first check valve 7 and the second check valve 9, the door can be slowly closed at this point.

In summary, the following steps: this torsion bar type door closer, through setting up box body 1, rotary rod 2, torsion bar component 3, gear 4, pinion rack 5, first piston 6, first check valve 7, second piston 8, second check valve 9, first spring 10, through-hole 11, recess 12, slider 13, second spring 14, third piston 15, oil guide groove 16, locating piece 17, mounting hole 18, sealing washer 19 and spout 20's cooperation use, the problem that current torsion bar type door closer structure is complicated, high and the life is short has been solved to manufacturing cost.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a torsion bar formula door closer, includes box body (1), its characterized in that: the inner chamber swing joint of box body (1) has rotary rod (2), the top of rotary rod (2) runs through to the outside of box body (1) and the cover is equipped with torsion bar assembly (3), the surface cover of rotary rod (2) is equipped with gear (4), the rear side meshing of gear (4) has pinion rack (5), the left side fixedly connected with first piston (6) of pinion rack (5), the left side intercommunication of first piston (6) has first check valve (7), the right side fixedly connected with second piston (8) of pinion rack (5), the left side intercommunication of second piston (8) has second check valve (9), the right side fixedly connected with first spring (10) of second piston (8), the right side of first spring (10) and the inner wall fixed connection of box body (1), through-hole (11) have been seted up on the right side of box body (1) inner chamber bottom, the bottom in through-hole (11) inner chamber is seted up fluted (12), the inner chamber swing joint of recess (12) has slider (13), the bottom fixedly connected with second spring (14) of slider (13), the bottom of second spring (14) and the inner wall fixed connection of recess (12), the top fixedly connected with third piston (15) of slider (13), the top of third piston (15) extends to the inner chamber of through-hole (11), oil guide groove (16) have been seted up in the left side of box body (1) inner chamber bottom, one side and recess (12) the intercommunication of oil guide groove (16).

2. A torsion bar door closer according to claim 1, wherein: the box body (1) is characterized in that positioning blocks (17) are fixedly connected to the top and the bottom of the two sides of the box body, and mounting holes (18) are formed in the front side of each positioning block (17).

3. A torsion bar door closer according to claim 1, wherein: the top fixedly connected with sealing washer (19) of box body (1) inner chamber, sealing washer (19) inner chamber and rotary rod (2) swing joint.

4. A torsion bar door closer according to claim 1, wherein: the sliding grooves (20) are formed in the two sides of the inner cavity of the groove (12), and the two sides of the sliding block (13) are movably connected with the inner walls of the sliding grooves (20).