CN208830854U - A kind of novel torsion bar type door closer - Google Patents

Abstract

The utility model discloses a kind of novel torsion bar type door closers, belong to door closer field.The utility model includes door closer shell, axial direction in door closer shell along door closer shell is provided with torsion bar, the end of torsion bar is fixed on door closer shell, torsion bar top is arranged with gear, door closer housing tip is provided with the transmission shaft connecting with door closer principal arm, transmission gear is arranged on transmission shaft, transmission gear is engaged with gear, articulated shaft is provided on gear face, compression buffer is disposed on articulated shaft, lower compression buffer, upper compression buffer, lower compression buffer includes the connecting rod being set on articulated shaft, one end of the separate articulated shaft of connecting rod is hinged with piston, piston is set in piston cylinder, piston cylinder is fixed on the inner sidewall of door closer shell, hydraulic oil is filled between piston cylinder and piston.The utility model replaces the spring of the prior art to put aside shutdown energy using torsion bar, and service life increases, not vulnerable to external environmental interference.

Description

A kind of novel torsion bar type door closer

Technical field

The utility model belongs to door closer field.

Background technique

Door closer is mainly used for guarantee that door after being turned on, closes arrive initial position, door closer master in time It to be used in business and public purpose, only pedestrian's disengaging does not provide convenience, and also the people to work, living in doors alleviates Puzzlement.It can be used for the sprawling of limitation fire and the ventilation of building.But the cylindrical spring that existing door closer uses carries Body as savings energy carrier there are the limitation of service life, and existing most widely used hydraulic door-closer uses the longevity Life is not also grown, especially when in use between it is long after, it is painstaking to be easy to reply, and Caton is caused, especially when weather is cold It waits, be easy to cause hydraulic oil to block, door closer is caused not work, the door closer especially used on fire resistant doorsets, fire occurs Shi Buneng opens and closes fire resistant doorsets in time, is unsatisfactory for present requirement.

Therefore, applicant wants to conceive a kind of door closer with long service life, and the door closer good environmental adaptability, not vulnerable to To the interference of external environment.But because torsion bar can have a biggish fluctuation in torsion when reversing return, for closing the door It is unfavorable, and generally using door closer require door closer open the door at closing time will a buffer area, therefore, it is necessary to one kind to open The torsion bar type door closer that can effectively buffer at closing time.

Utility model content

The purpose of this utility model is that: in view of the above-mentioned problems, provide a kind of novel torsion bar type door closer, this is novel to close door Device puts aside energy using torsion bar, while can also effectively buffer in switch gate.

The technical solution adopted in the utility model is as follows:

A kind of novel torsion bar type door closer, including door closer shell, the interior axial direction along door closer shell of door closer shell are set It is equipped with torsion bar, the end of torsion bar is fixed on door closer shell, and torsion bar top is arranged with gear, and door closer housing tip is provided with The transmission shaft connecting with door closer principal arm is arranged with transmission gear on transmission shaft, and transmission gear is engaged with gear, transmission gear The number of teeth is less than the number of teeth of gear, is provided with articulated shaft on gear face, and compression buffer is disposed on articulated shaft, is pushed Contracting buffer, upper compression buffer, lower compression buffer include the connecting rod being set on articulated shaft, the separate articulated shaft of connecting rod One end be hinged with piston, piston is set in piston cylinder, and piston cylinder is fixed on the inner sidewall of door closer shell, piston cylinder with A cavity is formed between piston, is filled with hydraulic oil in the cavity.

Further, it is provided with oil filler point on piston cylinder, oil filler point plunger is arranged in oil filler point, oil filler point plunger passes through Oil filler point is protruded into piston cylinder and is connected to piston cylinder.

Further, regulating tank, lower regulating tank are provided on door closer shell, two oil filler point plungers are respectively from correspondence Upper regulating tank, lower regulating tank stretch out.

Further, torsion bar top is arranged with copper sheathing, and copper sheathing is mounted on door closer shell.

Further, the left side wall of door closer shell, be provided with installation foot on right side wall.

In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:

1, in the utility model, existing cylindrical spring is replaced to continue required energy of closing the door using torsion bar pioneeringly Amount.Door closer principal arm drives transmission shaft rotation, and transmission shaft drives torsion bar around own axis, the end of torsion bar by deceleration device End is fixed on door closer shell, so that torsion bar torsion certain angle puts aside energy.Compared to the prior art, torsion bar structure Simply, easy for installation, and high reliablity, ambient adaptability is good, is suitable for use on fire resistant doorsets, in various high temperature, cold conditions Under can reliably working, therefore, when using torsion bar, the sealing performance of door closer requires decline, thus reduce production, manufacture at This, manufacturer does not have in cost great amount of cost on pursuing sealing performance.The elastic property of torsion bar unit volume savings is than existing Some cylindrical springs are big, thus, for the door of same specification weight, the quality of torsion bar is smaller than the quality of spring, also just convenient In transport, installation.It also has the advantage that because torsion bar can generally generate a permanent torsional deflection when manufacturing, so that torsion bar has There is certain prestressing force, meanwhile, because the direction and torsion bar to the torsion of torsion bar pre-add are mounted on the side reversed on door closer shell To identical, it is therefore an objective to reduce actual stress when work, extend the service life, while but also door close more will be tight, protection effect More preferably.Because the windup-degree of torsion bar is limited, and the angle of torsion bar torsion is generally acute angle, in order to avoid opening the door, closing the door When, torsion bar rotational angle is excessive, becomes the small angle of torsion bar rotation by the big angle that gear, transmission gear rotate transmission shaft Degree.Transmission gear is engaged with gear, and the number of teeth of transmission gear is less than the number of teeth of gear.Transmission shaft is arranged in the door closer shell Top, the axis of the transmission shaft is parallel with the axis of the torsion bar.Because the top of door closer shell is arranged in transmission shaft, And the axis of transmission shaft is parallel with the axis of torsion bar, i.e. the axis of transmission shaft and the axis of door closer shell is also parallel, that is, closes door Device shell is longitudinally arranged.Compared with door closer lateral arrangement in the prior art, the utility model can ideally incorporate in door body, Without protruding the more aobvious beauty on door as the prior art.Moreover, because the utility model transmission shaft is arranged in door closer The top of shell, so that the left and right sides wall of door closer shell does not have to that additional duct is arranged to install transmission shaft or adjust dress It sets, so the sealing performance of the utility model greatly improved, is also convenient for the manufacturing of door closer shell, reduces and be produced into This, also reduces technology difficulty, improves vendor's benefit.In the utility model, articulated shaft is provided on gear face, hingedly Compression buffer and lower compression buffer are provided on axis again.Upper compression buffer includes being set in lower compression buffer Connecting rod on articulated shaft is moved up or is moved down, and then connecting rod drives the work of the piston or lower compression buffer of upper compression buffer Plug squeezes hydraulic oil, and the hydraulic oil being pressurized at this time plays the role of opening the door and buffering at closing time, excessive velocities when avoiding opening the door It bumps against on neighbouring wall, or strikes suddenly and damage door-inhale on door-inhale, can also prevent from damaging in door excessive velocities at closing time Door.

2, it in the utility model, to piston cylinder oiling or is drained the oil by the oil filler point plunger in oil filler point, is adjusted with realizing Save the cushion performance of compression buffer, the requirement of buffering when switch gate to meet the door of different size, weight.

3, it in the utility model, for the ease of adjusting the cushion performance of compression buffer, is provided on door closer shell Regulating tank, lower regulating tank are just adjusted at this point, being not required to disassembly door closer.

4, impaired in order to avoid swinging when torsion bar torsion in the utility model, torsion bar top is arranged with copper sheathing, copper sheathing it is outer Circle is fixed on door closer shell.Torsion bar is limited on the axis of torsion bar itself and rotates by copper sheathing.

5, in the utility model, because torsion bar stress is reversed, door closer shell is fixed on using existing screw at this time Both ends are improper, because stress condition is bad, door closer ontology can be directly detached from from door, and installation foot is arranged in door closer At this point, due to increasing the arm of force, the screw squeezed on installation foot be can be very good door closer on the left side wall of ontology, right side wall Ontology is fixed on door.

Detailed description of the invention

Fig. 1 is the main view of the utility model；

Fig. 2 is the transmission schematic diagram of the utility model；

Fig. 3 is the compression buffer schematic side view of the utility model；

Fig. 4 is the compression buffer elevational schematic view of the utility model；

Marked in the figure: 1- door closer shell, 101- installation foot, 102- end cap, the upper regulating tank of 103-, regulating tank under 104-, 2- torsion bar, 201- gear, 202- articulated shaft, 3- transmission shaft, 4- transmission gear, 501- upper compression buffer compress under 502- slow Rush device, 503- connecting rod, 504- piston, 505- piston cylinder, 506- oil filler point, 507- oil filler point plunger, 7- copper sheathing.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this Utility model is not used to limit the utility model.

A kind of novel torsion bar type door closer, including door closer shell 1, the interior axial direction along door closer shell 1 of door closer shell 1 It is provided with torsion bar 2, the end of torsion bar 2 is fixed on door closer shell 1, and 2 top of torsion bar is arranged with gear 201, door closer shell 1 Top is provided with the transmission shaft 3 connecting with door closer principal arm, and transmission gear 4, transmission gear 4 and gear are arranged on transmission shaft 3 201 engagements, the number of teeth of transmission gear 4 are less than the number of teeth of gear 201, and gear is provided with articulated shaft 202, articulated shaft on 201 end face Compression buffer 501, lower compression buffer 502, upper compression buffer 501, lower compression buffer are disposed on 202 502 include the connecting rod 503 being set on articulated shaft 202, and one end of the separate articulated shaft 202 of connecting rod 503 is hinged with piston 504, piston 504 is set in piston cylinder 505, and piston cylinder 505 is fixed on the inner sidewall of door closer shell 1, piston cylinder 505 with A cavity is formed between piston 504, is filled with hydraulic oil in cavity.

Further, it is provided with oil filler point 506 on piston cylinder 505, oil filler point plunger 507 is arranged in oil filler point 506, infuses Oilhole plunger 507 passes through oil filler point 506 and protrudes into piston cylinder 505 and be connected to piston cylinder 505.

Further, regulating tank 103, lower regulating tank 104, two oil filler point plungers 507 are provided on door closer shell 1 It is stretched out respectively from corresponding upper regulating tank 103, lower regulating tank 104.

Further, 2 top of torsion bar is arranged with copper sheathing 7, and copper sheathing 7 is mounted on door closer shell 1.

Further, the left side wall of door closer shell 1, be provided with installation foot 101 on right side wall.

Working principle: the utility model is longitudinally mounted on fire resistant doorsets when in use, passes through the 4 of 1 two sides of door closer shell A installation foot is fixed on door.Transmission shaft 3 is also longitudinally arranged, and the axis of transmission shaft 3 is parallel with the axis of torsion bar 2.When enabling, close Door device principal arm drives transmission shaft 3 to rotate, and the rotation band nutating gear 4 of transmission shaft 3 rotates, and transmission gear 4 is with 201 turns of moving gear Dynamic, since the number of teeth of the gear ratio transmission gear 4 of gear 201 is more, gear 201 drives torsion bar 2 to reverse a low-angle, herein mistake Cheng Zhong, the energy that the savings of torsion bar 2 is closed the door.When gear 201 rotates, articulated shaft 202 follows gear 201 to turn around the axis of gear 201 Dynamic, with reference to Fig. 3, when articulated shaft 202 moves up on the vertical plane, articulated shaft 202 compresses upper compression buffer 501 by connecting rod 503 Piston cylinder 505 in hydraulic oil, when articulated shaft 202 moves down on the vertical plane, articulated shaft 202 by connecting rod 503 compression push The hydraulic oil in piston cylinder 505 in contracting buffer 502.Compressed hydraulic oil plays the role of buffering at this time.Need basis When weight, the specification of the door of the utility model installation adjust damper, pass through the oiling in upper regulating tank 103, lower regulating tank 104 Hole plunger 507 is realized to the oiling of hydraulic oil or drains the oil, and then adjusts effective pressure of upper compression buffer and lower compression buffer Contracting distance.Compared to the prior art, 2 structure of torsion bar is simple, easy for installation, and high reliablity, and ambient adaptability is good, is suitable for using It, can reliably working under various high temperature, cold conditions on fire resistant doorsets.In the utility model, 1 monoblock cast of door closer shell Molding is only provided with an end cap 102 sealing on the top of door closer shell 1, and the sealing performance of door closer greatly improves, to drop Low production, manufacturing cost, manufacturer do not have to again ancillary cost great amount of cost on pursuing sealing performance.2 unit bodies of torsion bar The elastic property of product savings is bigger than existing cylindrical spring, thus, for the door of same specification weight, the mass ratio of torsion bar 2 The quality of spring is small, is also just convenient to transport, installation.

Embodiment 1

A kind of novel torsion bar type door closer, including door closer shell 1, the interior axial direction along door closer shell 1 of door closer shell 1 It is provided with torsion bar 2, the end of torsion bar 2 is fixed on door closer shell 1, and 2 top of torsion bar is arranged with gear 201, door closer shell 1 Top is provided with the transmission shaft 3 connecting with door closer principal arm, and transmission gear 4, transmission gear 4 and gear are arranged on transmission shaft 3 201 engagements, the number of teeth of transmission gear 4 are less than the number of teeth of gear 201, and gear is provided with articulated shaft 202, articulated shaft on 201 end face Compression buffer 501, lower compression buffer 502, upper compression buffer 501, lower compression buffer are disposed on 202 502 include the connecting rod 503 being set on articulated shaft 202, and one end of the separate articulated shaft 202 of connecting rod 503 is hinged with piston 504, piston 504 is set in piston cylinder 505, and piston cylinder 505 is fixed on the inner sidewall of door closer shell 1, piston cylinder 505 with A cavity is formed between piston 504, is filled with hydraulic oil in cavity.

In the present embodiment, existing cylindrical spring is replaced to continue required energy of closing the door using torsion bar 2.Door closer principal arm Transmission shaft 3 is driven to rotate, transmission shaft 3 drives torsion bar 2 around own axis by deceleration device, and the end of torsion bar 2 is fixed on On door closer shell 1, so that torsion bar 2, which reverses certain angle, puts aside energy.Compared to the prior art, 2 structure of torsion bar is simple, It is easy for installation, and high reliablity, ambient adaptability is good, is suitable for use on fire resistant doorsets, can under various high temperature, cold conditions Reliably working, therefore, when using torsion bar 2, the sealing performance of door closer requires decline, so that production, manufacturing cost are reduced, it is raw Producer is produced not have in cost great amount of cost on pursuing sealing performance.The elastic property of 2 unit volume of torsion bar savings is than existing Cylindrical spring is big, thus, for the door of same specification weight, the quality of torsion bar 2 is smaller than the quality of spring, also is just convenient to transport It is defeated, installation.It also has the advantage that because torsion bar 2 can generally generate a permanent torsional deflection when manufacturing, so that torsion bar 2 has There is certain prestressing force, meanwhile, because the direction and torsion bar 2 to the torsion of torsion bar 2 pre-add are mounted on and reverse on door closer shell 1 Direction is identical, it is therefore an objective to reduce actual stress when work, extend the service life, while but also door close more will be tight, protection effect Fruit is more preferable.Because the windup-degree of torsion bar 2 is limited, and the angle that torsion bar 2 reverses is generally acute angle, in order to avoid opening the door, At closing time, 2 rotational angle of torsion bar is excessive, becomes torsion bar by the big angle that gear 201, transmission gear 4 rotate transmission shaft 3 The low-angle of 2 rotations.The top of door closer shell 1 is arranged in transmission shaft 3, and the axis of the axis of transmission shaft 3 and torsion bar 2 is flat Row, i.e. the axis of transmission shaft 3 and the axis of door closer shell 1 is also parallel, i.e., door closer shell 1 is longitudinally arranged.With the prior art Middle door closer lateral arrangement is compared, and the present embodiment can ideally be incorporated in door body by slotting on door, without as existing Technology is equally protruded on door, more aobvious beauty.Moreover, because the top of door closer shell 1 is arranged in the transmission shaft 3 of the present embodiment End, so that the left and right sides wall of door closer shell 1 does not have to that additional duct is arranged to install transmission shaft or regulating device, so greatly Width improves the sealing performance of the present embodiment, is also convenient for the manufacturing of door closer shell 1, reduces production cost, also reduce Technology difficulty improves vendor's benefit.In the present embodiment, it is provided with articulated shaft 202 on gear face, on articulated shaft 202 again It is provided with compression buffer 501 and lower compression buffer 502.Upper compression buffer 501 includes with lower compression buffer 502 The connecting rod 503 being set on articulated shaft 202, connecting rod 503 follow articulated shaft 202 to move up or move down, and then connecting rod 503 drives and presses The piston 504 of contracting buffer 501 or the piston 504 of lower compression buffer 502 squeeze hydraulic oil, the hydraulic oil being pressurized at this time Play the role of opening the door and buffering at closing time, excessive velocities bump against on neighbouring wall when avoiding opening the door, or strike suddenly Door-inhale is damaged on door-inhale, can also prevent from damaging door in door excessive velocities at closing time.

Embodiment 2

On the basis of embodiment 1, it is provided with oil filler point 506 on piston cylinder 505, is arranged with oil filler point in oil filler point 506 Plunger 507, oil filler point plunger 507 pass through oil filler point 506 and protrude into piston cylinder 505 and be connected to piston cylinder 505.

In the present embodiment, to 505 oiling of piston cylinder or drained the oil by the oil filler point plunger 507 in oil filler point 506, with reality Now adjust the cushion performance of compression buffer, the requirement of buffering when switch gate to meet the door of different size, weight.

Embodiment 3

On the basis of embodiment 2, for the ease of adjusting the cushion performance of compression buffer, it is arranged on door closer shell 1 There are upper regulating tank 103, lower regulating tank 104, two oil filler point plungers 507 are respectively from corresponding upper regulating tank 103, lower regulating tank 104 stretch out.At this point, being not required to disassembly door closer can operate.

Embodiment 7

On the basis of embodiment 1, impaired in order to avoid swinging when torsion bar torsion, 2 top of torsion bar is arranged with copper sheathing 7, copper Set 7 is mounted on door closer shell 1.Torsion bar 2 is limited on the axis of torsion bar 2 itself and rotates by copper sheathing 7.

Embodiment 8

On the basis of embodiment 1, the left side wall of door closer shell 1, be provided with installation foot 101 on right side wall.Because The torsion of 2 stress of torsion bar, the both ends for being fixed on door closer shell 1 using existing screw at this time are improper, because stress condition is not Good, door closer ontology 1 can be directly detached from from door, and installation foot 101 is arranged in left side wall, the right side wall of door closer ontology 1 On, at this point, due to increasing the arm of force, the screw squeezed on installation foot can be very good for door closer sheet, 1 to be fixed on door.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims (5)

1. a kind of novel torsion bar type door closer, including door closer shell (1), it is characterised in that: the interior edge of the door closer shell (1) The axial direction of door closer shell (1) is provided with torsion bar (2), and the end of the torsion bar (2) is fixed on the door closer shell (1), Torsion bar (2) top is arranged with gear (201), and door closer shell (1) top is provided with to be connect with door closer principal arm Transmission shaft (3) is arranged with transmission gear (4) on the transmission shaft (3), and the transmission gear (4) is nibbled with the gear (201) It closes, the number of teeth of the transmission gear (4) is less than the number of teeth of gear (201), is provided with articulated shaft on gear (201) end face (202), compression buffer (501), lower compression buffer (502), the upper pressure are disposed on the articulated shaft (202) Contracting buffer (501), lower compression buffer (502) include the connecting rod (503) being set on articulated shaft (202), the connecting rod (503) one end of separate articulated shaft (202) is hinged with piston (504), and the piston (504) is set in piston cylinder (505), The piston cylinder (505) is fixed on the inner sidewall of the door closer shell (1), the piston cylinder (505) and piston (504) it Between form a cavity, hydraulic oil is filled in the cavity.

2. a kind of novel torsion bar type door closer according to claim 1, it is characterised in that: set on the piston cylinder (505) It is equipped with oil filler point (506), is arranged with oil filler point plunger (507) in the oil filler point (506), the oil filler point plunger (507) is worn The oil filler point (506) is crossed to protrude into piston cylinder (505) and be connected to piston cylinder (505).

3. a kind of novel torsion bar type door closer according to claim 2, it is characterised in that: on the door closer shell (1) It is provided with regulating tank (103), lower regulating tank (104), two oil filler point plungers (507) are respectively from corresponding upper regulating tank (103), lower regulating tank (104) is stretched out.

4. a kind of novel torsion bar type door closer according to claim 1, it is characterised in that: torsion bar (2) top is arranged Have copper sheathing (7), the copper sheathing (7) is mounted on the door closer shell (1).

5. a kind of novel torsion bar type door closer according to claim 1, it is characterised in that: the door closer shell (1) Installation foot (101) are provided on left side wall, right side wall.