CN214247007U

CN214247007U - Mandrel fixing device, window closer and door closer

Info

Publication number: CN214247007U
Application number: CN202022215349.0U
Authority: CN
Inventors: 蔡海勇
Original assignee: Xiamen Haixinxing Industry And Trade Co ltd
Current assignee: Xiamen Haixinxing Industry And Trade Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-30
Publication date: 2021-09-21
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a mandrel fixing device, which comprises a fixing seat, a mandrel, a protective sleeve, a ball and a cylinder body; a limiting frame is arranged in the fixed seat; the end part of the mandrel is provided with a clamping groove; the protective sleeve is arranged in the fixed seat and positioned on one side of the limiting frame, a through hole is axially formed in the protective sleeve, and a containing hole is radially formed in the protective sleeve; the ball is positioned in the containing hole, and one side of the ball abuts against the bottom of the clamping groove after the end part of the mandrel passes through the through holes of the limiting frame and the protective sleeve; the cylinder body is movably arranged in the fixed seat and can be switched between a first state and a second state, and the other side of the ball abuts against the inner side wall of the cylinder body in the first state; in the second state, the other side of the ball is separated from the constraint of the inner side wall of the cylinder body. The utility model discloses still disclose a window closer and a door closer. The utility model discloses it is effective fixed with the dabber to increase the life of window closer or door closer.

Description

Mandrel fixing device, window closer and door closer

Technical Field

The utility model relates to a casement door technical field, in particular to dabber fixing device, window closer and door closer.

Background

The window closer is also called an automatic window closer, a temperature-sensing window closer, a fire-proof window opening and closing control device and the like, is applied to various movable fire-proof windows, and solves the problem that the movable fire-proof window is closed at ordinary times so as not to achieve ventilation and lighting.

The door closer is a hydraulic press similar to a spring on the door head, can be released after being compressed after the door is opened, automatically closes the door, has the effect like a spring door, and can ensure that the door is accurately and timely closed to an initial position after being opened.

When a traditional window closer or door closer works, the connecting rod pushes the movable piece to move so as to drive the rocker arm to close, and then the window or door is driven to be automatically closed. A conventional window closer or door closer is generally provided with a spindle, the spindle is fixed by a fixing device, the spindle acts on a fusible gasket, the fusible gasket melts and moves the spindle, so that a connecting rod pushes a movable member to move.

However, the mandrel acts on the fusible washer, so that the service life of the fusible washer is short, and thus the service life of the window closer or door closer is short.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the above-mentioned technology to a certain extent. Therefore, a first object of the present invention is to provide a spindle fixing device, which effectively fixes a spindle to increase the service life of a window closer or a door closer.

A second object of the present invention is to provide a window closer, which effectively prolongs the service life of the window closer.

A third object of the present invention is to provide a door closer, which can effectively prolong the service life of the door closer.

In order to achieve the above object, an embodiment of a first aspect of the present invention provides a mandrel fixing device, which includes a fixing base, a mandrel, a protecting sleeve, a ball and a cylinder body;

a limiting frame is arranged in the fixed seat; the end part of the mandrel is provided with a clamping groove;

the protective sleeve is arranged in the fixed seat and positioned on one side of the limiting frame, a through hole is axially formed in the protective sleeve, and a containing hole is radially formed in the protective sleeve;

the ball is positioned in the containing hole, and one side of the ball abuts against the bottom of the clamping groove after the end part of the mandrel passes through the through holes of the limiting frame and the protective sleeve;

the cylinder body is movably arranged in the fixed seat and can be switched between a first state and a second state, and the other side of the ball abuts against the inner side wall of the cylinder body in the first state; in the second state, the other side of the ball is separated from the constraint of the inner side wall of the cylinder body.

According to the utility model discloses a mandrel fixing device, when fixed dabber, the through hole of spacing and protective sheath is passed to the tip of dabber for ball one side supports and leans on the tank bottom at the draw-in groove, and the ball opposite side supports and leans on the inside wall at the cylinder body, thereby makes the cylinder body firmly fixed dabber, prevents that the dabber from breaking away from. And the cylinder body removes the back, and when the cylinder body was located the second state promptly, the ball opposite side breaks away from the constraint in the internal side wall of cylinder for the cylinder body is no longer fixed dabber, and the dabber is struggled to take off the constraint and is removed, in order to realize self-closing casement or door. Therefore, the utility model discloses it is effective fixed with the dabber to increase the life of window closer or door closer.

In addition, according to the present invention, the mandrel fixing device may further have the following additional technical features:

further, the mouth of the cylinder body is provided with an arc surface or an inclined surface which is convenient for the ball to break away from.

Further, still include the elastic component, the elastic component orders about the cylinder body and keeps away from the spacing.

The temperature sensing device is characterized by further comprising a fastening piece and a temperature sensing element, wherein the fastening piece is arranged on the fixed seat, one side of the temperature sensing element is connected with the cylinder body, the other side of the temperature sensing element is connected with the fastening piece, and the cylinder body is driven to move after the temperature sensing element is melted.

Further, the protective sleeve radially forms at least two accommodation holes.

Further, the protective sleeve is substantially cylindrical.

Furthermore, the clamping groove is a polygonal clamping groove which is in a horn shape, and the notch of the polygonal clamping groove is arranged outwards; or the clamping groove is an arc-shaped clamping groove, and the notch is arranged outwards.

Furthermore, the elastic part is a compression spring, one end of the compression spring is abutted against the limiting frame, and the other end of the compression spring is abutted against the opening of the cylinder body; or the elastic part is an extension spring which is arranged on one side of the cylinder body far away from the limiting frame.

In order to achieve the above object, a second aspect of the present invention provides a window closer, including the above spindle fixing device, an elastic element, a movable element, a rocker arm, and a connecting rod;

the elastic element is sleeved on the mandrel, one end of the elastic element is abutted against the connecting rod, and the other end of the elastic element is abutted against the other side of the limiting frame;

the movable piece and the fixed seat can be connected in a reciprocating manner;

one end of the rocker arm is hinged with the fixed seat, a transmission mechanism for driving the rocker arm to swing or the movable part to move is arranged between the rocker arm and the movable part, and the other end of the rocker arm is used for being connected with the window sash frame;

the connecting rod and fixing base swing joint, the connecting rod can remove for rocking arm hinged end direction to the ejector moving part removes.

According to the utility model discloses window closer, when fixed dabber, the through hole of spacing frame and protective sheath is passed to the tip of dabber for ball one side supports and leans on the tank bottom at the draw-in groove, and the ball opposite side supports and leans on the inside wall at the cylinder body, thereby makes the cylinder body firmly fixed dabber, prevents that the dabber from breaking away from. And the cylinder body removes the back, and when the cylinder body was located the second state promptly, the ball opposite side breaks away from the constraint in the internal side wall of cylinder for the cylinder body is no longer fixed dabber, and the dabber is struggled to get rid of the constraint and is removed, in order to realize self-closing casement. Because the mandrel does not directly act on the temperature sensing element, the service life of the temperature sensing element is prolonged, and the service life of the window closer is effectively prolonged.

In order to achieve the above object, a third aspect of the present invention provides a door closer, including the above spindle fixing device, an elastic element, a movable element, a rocker arm, and a connecting rod;

one end of the rocker arm is hinged with the fixed seat, a transmission mechanism for driving the rocker arm to swing or the movable part to move is arranged between the rocker arm and the movable part, and the other end of the rocker arm is used for being connected with the door frame;

According to the utility model discloses a door closer, when fixed dabber, the through hole of spacing and protective sheath is passed to the tip of dabber for ball one side supports and leans on the tank bottom at the draw-in groove, and the ball opposite side supports and leans on the inside wall at the cylinder body, thereby makes the cylinder body firmly fixed dabber, prevents that the dabber from breaking away from. And the cylinder body removes the back, and when the cylinder body was located the second state promptly, the ball opposite side breaks away from the constraint in the internal side wall of cylinder for the cylinder body is no longer fixed dabber, and the dabber is struggled to get rid of the constraint and is removed, in order to realize the automatic closing door. Because the mandrel does not directly act on the temperature sensing element, the service life of the temperature sensing element is prolonged, and the service life of the door closer is effectively prolonged.

Drawings

Fig. 1 is a schematic structural view illustrating a temperature sensing element of a mandrel fixing device according to an embodiment of the present invention not melted;

FIG. 2 is an enlarged view of a portion of FIG. 1;

fig. 3 is a schematic structural view of the mandrel fixing device after the temperature sensing element is melted according to the embodiment of the present invention;

fig. 4 is a partially enlarged view of fig. 3.

Description of the reference symbols

Fixing seat 1 limit rack 11

Core shaft 2 clamping groove 21

Protective sheath 3 accommodating hole 31

Ball 4 cylinder 5

Inclined plane 51 elastic element 6

Fastener 7 temperature sensing element 8

Elastic element 91 and movable element 92

Rocker arm 93 connecting rod 94

A transmission 95.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 4, the utility model provides a mandrel fixing device, including fixing base 1, mandrel 2, protective sheath 3, ball 4 and cylinder body 5.

A limiting frame 11 is arranged in the fixed seat 1; the end part of the mandrel 2 is provided with a clamping groove 21; the protective sleeve 3 is arranged in the fixing seat 1 and located on one side of the limiting frame 11, a through hole is formed in the protective sleeve 3 in the axial direction, and an accommodating hole 31 is formed in the protective sleeve 3 in the radial direction.

The ball 4 is located in the accommodating hole 31, and after the end of the mandrel 2 passes through the through holes of the limiting frame 11 and the protective sleeve 3, one side of the ball 4 abuts against the groove bottom of the clamping groove 21. The ball 4 is preferably a rolling steel ball, and the hardness of the rolling steel ball is better, so that the fixing is firmer.

The cylinder body 5 is movably arranged in the fixed seat 1 and can be switched between a first state and a second state, and the other side of the ball 4 is abutted against the inner side wall of the cylinder body 5 in the first state; in the second state, the other side of the ball 4 is separated from the restriction of the inner side wall of the cylinder 5.

When the mandrel 2 is fixed, the end part of the mandrel 2 penetrates through the through holes of the limiting frame 11 and the protective sleeve 3, so that one side of the ball 4 is abutted against the bottom of the clamping groove 21, the other side of the ball 4 is abutted against the inner side wall of the cylinder body 5, the cylinder body 5 is enabled to firmly fix the mandrel 2, and the mandrel 2 is prevented from being separated. And 5 backs that remove of cylinder body, cylinder body 5 is when being located the second state promptly, and 4 opposite sides of ball break away from the constraint in 5 inside walls of cylinder body for 5 no longer fixed dabber 2 of cylinder body, dabber 2 are struggled away and are restrainted and remove, in order to realize self-closing casement or door. Therefore, the utility model discloses effectively fix dabber 2 to increase the life of window closer or door closer.

Optionally, in order to facilitate the cylinder 5 to move, the ball 4 can break loose the constraint of the cylinder 5 smoothly, and the opening of the cylinder 5 is provided with an arc surface or an inclined surface 51 facilitating the ball 4 to break away, so that after the cylinder 5 moves, i.e. after the cylinder moves in the direction away from the limiting frame 11, the ball 4 rolls along the inclined surface 51 or the arc surface to break loose the constraint of the cylinder 5, so that the mandrel 2 moves, and the automatic closing of the window sash or the door is realized.

As an example, the mandrel fixing device may further include an elastic member 6, and the elastic member 6 drives the cylinder 5 away from the stopper 11. Wherein, elastic component 6 is preferably compression spring, and compression spring one end supports and leans on spacing 11, and the compression spring other end supports and leans on the oral area of cylinder body 5, and compression spring provides elasticity and impels cylinder body 5 to keep away from spacing 11 to ball 4 breaks loose the constraint of cylinder body 5. Of course, the elastic member 6 may be an extension spring disposed on a side of the cylinder 5 away from the stopper 11. The extension spring provides elastic force to drive the cylinder body 5 to be far away from the limiting frame 11.

In some examples, the mandrel fixing device may further include a fastening member 7 and a temperature sensing element 8, the fastening member 7 is disposed on the fixing base 1, the fastening member 7 is preferably a fastening bolt, one side of the temperature sensing element 8 is connected to the cylinder 5, the other side of the temperature sensing element 8 is connected to the fastening member 7, and the elastic member 6 drives the cylinder 5 to move after the temperature sensing element 8 melts. The temperature sensing element 8 may be a fusible metal gasket or a temperature sensing glass ball.

It should be noted that, when the temperature sensing element 8 may be a fusible metal gasket, the fusible metal gasket does not deform at a low temperature, and the fusible metal gasket may melt when meeting a preset temperature value, and the preset temperature value of the fusible metal gasket may be customized within a certain range, such as 47-280 ℃, and the fusible metal gasket is the prior art and will not be described herein.

As an example, the protective sheath 3 may be formed with at least two receiving holes 31 in a radial direction. In this example, the protective sheath 3 may be formed with two through holes in a radial direction, the two through holes are vertically arranged, and the end portions of the through holes are formed with the receiving holes 31, so that the two through holes form four receiving holes 31, and thus, the receiving holes 31 can be conveniently formed in the protective sheath 3. Of course, in this example, the protective sleeve 3 may be formed with one receiving hole 31 or another number of receiving holes 31 in the radial direction, which is not limited herein.

In some examples, the protective sheath 3 is preferably substantially cylindrical, but the protective sheath 3 may also be substantially prismatic, such as hexagonal prism or octagonal prism, without limitation.

As an example, the slot 21 is a polygonal slot, which is in a horn shape and has a notch disposed outward; or the clamping groove 21 is an arc-shaped clamping groove, and the notch is arranged outwards. So, make things convenient for ball 4 to break away from, ball 4 breaks away from the back, and dabber 2 removes and realizes the self-closing casement.

The utility model also provides a window closer, including above-mentioned dabber fixing device, elastic element 91, moving part 92, rocking arm 93 and connecting rod 94.

Elastic element 91 cup joints on dabber 2, and elastic element 91 one end is supported and is leaned on connecting rod 94, and the elastic element 91 other end supports and leans on the opposite side of spacing 11. Among them, the elastic member 91 is preferably a compression spring.

The movable piece 92 is connected with the fixed seat 1 in a reciprocating way; one end of the rocker arm 93 is hinged to the fixed seat 1, a transmission mechanism 95 for driving the rocker arm 93 to swing or driving the movable element 92 to move is arranged between the rocker arm 93 and the movable element 92, and the other end of the rocker arm 93 is used for being connected with the window sash frame.

The connecting rod 94 is movably connected with the fixed seat 1, and the connecting rod 94 can move relative to the direction of the hinged end of the rocker arm 93 and push the movable piece 92 to move.

When the mandrel 2 is fixed, the end part of the mandrel 2 penetrates through the through holes of the limiting frame 11 and the protective sleeve 3, so that one side of the ball 4 is abutted against the bottom of the clamping groove 21, the other side of the ball 4 is abutted against the inner side wall of the cylinder body 5, the cylinder body 5 is enabled to firmly fix the mandrel 2, and the mandrel 2 is prevented from being separated. And after 5 removal of cylinder body, when 5 cylinder bodies were located the second state promptly, 4 opposite sides of ball broke away from the constraint in 5 inside walls of cylinder body for 5 fixed dabber 4 no longer of cylinder body, dabber 4 broke away the constraint and removed, in order to realize self-closing casement. Because the mandrel 2 does not directly act on the temperature sensing element 8, the service life of the temperature sensing element 8 is prolonged, and the service life of the window closer is effectively prolonged.

The utility model also provides a door closer, including above-mentioned dabber fixing device, elastic element 91, moving part 92, rocking arm 93 and connecting rod 94.

The movable piece 92 is connected with the fixed seat 1 in a reciprocating way; one end of the rocker arm 93 is hinged with the fixed seat 1, a transmission mechanism 95 for driving the rocker arm 93 to swing or driving the movable piece 92 to move is arranged between the rocker arm 93 and the movable piece, and the other end of the rocker arm 93 is used for being connected with the door frame.

When the mandrel 2 is fixed, the end part of the mandrel 2 penetrates through the through holes of the limiting frame 11 and the protective sleeve 3, so that one side of the ball 4 is abutted against the bottom of the clamping groove 21, the other side of the ball 4 is abutted against the inner side wall of the cylinder body 5, the cylinder body 5 is enabled to firmly fix the mandrel 2, and the mandrel 2 is prevented from being separated. And after 5 removal of cylinder body, cylinder body 5 was located the second state promptly, and 4 opposite sides of ball break away from the constraint in 5 inside walls of cylinder body for 5 no longer fixed dabbers of cylinder body, dabber 2 are struggled off the constraint and are removed, in order to realize automatic closing door. Because the mandrel 2 does not directly act on the temperature sensing element 8, the service life of the temperature sensing element 8 is prolonged, and the service life of the door closer is effectively prolonged.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" 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 to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A mandrel fixing device is characterized in that: comprises a fixed seat, a mandrel, a protective sleeve, a ball and a cylinder body;

2. The mandrel fixture of claim 1 wherein: the mouth of the cylinder body is provided with an arc surface or an inclined surface which is convenient for the ball to break away from.

3. The mandrel fixture of claim 1 wherein: still include the elastic component, the elastic component orders about the cylinder body and keeps away from the spacing.

4. A mandrel fixture according to claim 3 wherein: the temperature sensing device is characterized by further comprising a fastening piece and a temperature sensing element, wherein the fastening piece is arranged on the fixing seat, one side of the temperature sensing element is connected with the cylinder body, the other side of the temperature sensing element is connected with the fastening piece, and after the temperature sensing element is melted, the elastic piece drives the cylinder body to move.

5. The mandrel fixture of claim 1 wherein: the protective sleeve radially forms at least two accommodation holes.

6. The mandrel fixture of claim 1 wherein: the protective sleeve is integrally cylindrical.

7. The mandrel fixture of claim 1 wherein: the clamping groove is a polygonal clamping groove which is in a horn shape, and the notch of the polygonal clamping groove is arranged outwards; or the clamping groove is an arc-shaped clamping groove, and the notch is arranged outwards.

8. A mandrel fixture according to claim 3 wherein: the elastic part is a compression spring, one end of the compression spring is abutted against the limiting frame, and the other end of the compression spring is abutted against the opening of the cylinder body; or the elastic part is an extension spring which is arranged on one side of the cylinder body far away from the limiting frame.

9. A window closer comprising a mandrel fixture, a resilient element, a moveable member, a rocker arm and a connecting rod according to any one of claims 1 to 8;

10. A door closer comprising the spindle fixing device, the elastic element, the movable member, the rocker arm, and the connecting rod according to any one of claims 1 to 8;