WO2015196649A1

WO2015196649A1 - Fixing device

Info

Publication number: WO2015196649A1
Application number: PCT/CN2014/088855
Authority: WO
Inventors: 李康伟; 白伟岐; 李永国; 孟海芳; 赵飞鹏
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-06-27
Filing date: 2014-10-17
Publication date: 2015-12-30
Also published as: CN204003831U

Abstract

Disclosed is a fixing device, comprising: a first fixing portion (11) and a second fixing portion (2), wherein the first fixing portion (11) is provided with a snapping component; the second fixing portion (2) is provided with a fastening component (22) matched with the snapping component; the first fixing portion (11) and the second fixing portion (2) are fixedly connected by means of the snap-fastening of the snapping component and the fastening component, and the first fixing portion (11) is further provided with a fixing mechanism for fixing the first fixing portion (11) onto a support; and the second fixing portion (2) is arranged on a device to be fixed.

Description

Fixing device

Technical field

The utility model relates to the field of communication engineering, in particular to a fixing device.

Background technique

In practical applications, many devices need to be fixed on the support, such as the RRU in the distributed system. The RRU device is usually installed on the communication tower outside the machine room, about tens of meters away from the ground, so the RRU is generally fixed in the hug. On the pole. Generally, when the device is fixed on the support, the operation is relatively cumbersome. For example, the RRU is generally mounted on the pole, and the installation mainly includes: mounting the support on the RRU casing at the relevant position; on the support Install the support fixing clip; attach the RRU to the fixing clip; adjust the screw on the support fixing clip and press the upper side of the RRU with the pressure plate. When removing the RRU, it mainly includes: loosening the platen screw and pushing out the pressure plate; tightening the jacking screw to jack up and take out the RRU chassis.

It can be seen that the traditional installation and removal of the RRU method is prone to the following problems:

(1) The installation and disassembly process is complicated and takes a long time, resulting in high labor costs;

(2) There are many types of screws and wrenches used, and the drop of the working screws can cause serious consequences;

(3) The RRU support and the support fixing clip used are bulky and heavy, which brings inconvenience to the operator who installs the RRU.

It can be seen that the process of fixing the device on the support in the prior art is cumbersome.

Utility model content

The main technical problem to be solved by the utility model is to provide a fixing device, which solves the problem that the process of fixing the device on the support is cumbersome in the prior art.

In order to solve the above technical problem, the utility model provides a fixing device, comprising: a first solid a fixing portion and a second fixing portion; the first fixing portion is provided with a fastening member; the second fixing portion is provided with a fastening member matched with the fastening member; the first fixing portion and the second fixing portion are passed through the fastening member and The fastening of the fastening component achieves a fixed connection;

The first fixing portion is further provided with a fixing mechanism for fixing the first fixing portion on the support; the second fixing portion is disposed on the device to be fixed.

In an embodiment of the present invention, the first fixing portion is provided with at least two fastening members, and the fastening member on the second fixing portion is disposed at a position corresponding to the fastening member;

Among the latches provided on the first fixing portion, at least one of the latching members is a self-locking snap.

In an embodiment of the present invention, the self-locking buckle 1 includes a buckle base 11, a buckle support 12, a defining screw 13 and a torsion spring 14;

The buckle base 11 is provided with two bosses 111, and each of the bosses 111 is provided with a first through hole 112;

The first support portion 121 is U-shaped, and the second support hole 122 is disposed on the U-shaped side; the second support portion 122 extends in the middle of the first support portion 121;

The defining screw 13 passes through the second through hole 124 of the snap support 12, the first through hole 112 on the buckle base 11, and the hollow portion of the torsion spring 14, and the torsion spring 14 is defined at the two bosses of the buckle base 11. The middle of the torsion spring 13 is respectively abutted against the buckle base 11 and the second support portion 122.

In an embodiment of the present invention, the main body 21 of the second fixing portion 2 has a sheet-like structure, and the fastening member 22 also has a sheet-like structure and is disposed at a side of the main body 21 of the second fixing portion 2; The thickness of the fitting 22 is thinner than the thickness of the main body 21, and is disposed at a position away from the device to be fixed; the length of the diagonal of the main body 21 on the second fixing portion 2 is larger than the distance between the two sides of the fastening member 22. distance.

In an embodiment of the present invention, the edge of the fastening member 22 adjacent to the end surface of the fastening component is curved (221), and the end surface of the first fixing portion and the upper edge of the fastening component are curved end faces. Corresponding The position is provided with a groove.

In an embodiment of the present invention, the inner surface of the first support portion (121) of the buckle support (12) corresponding to the fastening member has a slope 125, and the first support portion 121 has a slope. The thickness of the portion near the second support portion 122 is thicker than the thickness away from the second support portion 122.

In an embodiment of the invention, the second fixing portion is connected to the device to be fixed by a detachable connecting member; or the second fixing portion is integrated with the device to be fixed.

In an embodiment of the present invention, the first fixing component includes two snap bases 11 , and the bottom surface of the snap base 11 is provided with a fixing groove 114 , and the two sides of the bottom surface of the buckle base 11 are fixed. The through holes 115 and the defining screws 116 are fixedly connected to each other by the fixing through holes 115 of the two latching bases 11 in a manner that the fixing grooves 114 are opposed to each other.

In an embodiment of the present invention, the self-locking buckle 1 further includes at least one limiting mechanism for restricting the buckle support 12 from being reversed by the tension of the torsion spring 14.

In an embodiment of the present invention, the self-locking buckle 1 further includes an adjusting screw 15 and a torsion spring washer 16. The second supporting portion 122 is further provided with a through hole 1221, and the adjusting screw 15 is matched with the through hole 1221. Fixed on the second supporting portion 122, the torsion spring washer 16 is provided with a thread, and the torsion spring washer 16 is screwed on the adjusting screw. One end of the torsion spring 14 abuts against the upper surface of the buckle base 11, and the other end The top and bottom are on the lower surface of the torsion spring washer 16.

In an embodiment of the present invention, two latching members are disposed on the first fixing portion, wherein one of the latching members is a self-locking buckle 1 and the other of the latching members is a fixed buckle 3; 3 includes a fixing portion 31 for fixing with the buckle base 11 and a fastening portion 32 for engaging with a fastening member on the second fixing portion, the fixing portion being fixed to the buckle base by a detachable connecting member 11; the hollow portion 321 of the fastening portion 32 for placing the fastening member gradually increases in width from top to bottom.

In an embodiment of the present invention, the limiting mechanism includes a first limiting block 312 and a second limiting block 18, and the first limiting block 312 is disposed on the fixing portion 31 of the fixed buckle 3 near the self-locking card. One end of the buckle, the second limiting block 18 is disposed on the side of the first supporting portion 121 of the buckle support 12; The second limiting block 18 is placed above the first limiting block 312.

The fixing device provided by the utility model comprises: a first fixing portion and a second fixing portion, wherein the first fixing portion is provided with a fastening component; the second fixing portion is provided with a fastening component matched with the fastening component; The fixing portion and the second fixing portion are fixedly connected by the fastening of the fastening member and the fastening member, and the first fixing portion is further provided with a fixing mechanism for fixing the first fixing portion on the support; the second fixing portion is disposed On the device to be fixed. The fixing device provided by the utility model comprises two parts, namely a first fixing part and a second fixing part, wherein the second fixing part is fixed on the device to be fixed, and the first fixing part is fixed on the support and passes through the first fixing part. The fastening of the upper fastening component and the fastening component of the second fixing portion can fix the device to be fixed on the support, and the fastening of the fastening component and the fastening component is very simple, so that the support can be simplified. The step of installing the device to be fixed.

DRAWINGS

1 is a partial structural schematic view of a first fixing portion in a fixing device provided by the present invention;

2 is a schematic structural view of a snap base of a self-locking buckle in a fixing device provided by the present invention;

3 is a schematic structural view of a snap support of a self-locking buckle in a fixing device provided by the present invention;

4 is a schematic structural view of a fixing buckle in a fixing device provided by the present invention;

5 is a partial structural schematic view of a first fixing portion in a fixing device provided by the present invention;

6 is a schematic structural view of a torsion spring of a self-locking buckle in a fixing device provided by the present invention;

Figure 7 is a schematic structural view of a second fixing portion in a fixing device provided by the present invention;

8 is a schematic structural view of a second fixing portion in a fixing device provided by the present invention;

Figure 9 is a force diagram of the present invention when the second fixing portion is fixed on the first fixing portion Figure

10 is a schematic structural view of a snap support of a self-locking buckle in a fixing device provided by the present invention;

Figure 11 is a schematic structural view of a fixing device provided by the present invention;

FIG. 12 is a schematic view showing the fixing device provided by the utility model fixing the device to be fixed on the pole.

detailed description

The present invention will be further described in detail below with reference to the accompanying drawings.

The embodiment provides a fixing device, a first fixing portion and a second fixing portion. The first fixing portion is provided with a fastening component; the second fixing portion is provided with a fastening component matched with the fastening component; The fixing portion and the second fixing portion are fixedly connected by the fastening of the fastening member and the fastening member, and the first fixing portion is further provided with a fixing mechanism for fixing the first fixing portion on the support; the second fixing portion is disposed On the device to be fixed.

The structure of the support in this embodiment may be a cylindrical structure such as a pole or a planar structure such as a wall. Correspondingly, the fixing mechanism of the second fixing portion is designed according to the structure of the support. The device to be fixed in this embodiment may be any device that needs to be fixed on a support, such as an RRU or the like.

In the present embodiment, the number of the snap members on the first fixing portion is not limited, and preferably two or more. The position of the fastening member on the second fixing portion is designed corresponding to the position of the fastening member on the first fixing portion, and the number is also the same. When the number of the fastening members on the first fixing portion is two, the positions of the two fastening members are opposite. When there are a plurality of the fastening members on the first fixing portion, at least one of the plurality of fastening members may be set as a self-locking buckle.

In this embodiment, the specific structure of the self-locking buckle is not limited. Here, a preferred method is provided. Referring to FIG. 1, the self-locking buckle 1 shown in FIG. 1 includes a buckle base 11 and a card. Buckle support 12, defining screw 13 and torsion spring 14; the structure of the snap base 11 is shown in Figure 2, card A plurality of bosses 111 are disposed on the buckle base 11 , and a first through hole 112 is disposed on each of the bosses 111 . Referring to FIG. 3 , the buckle support 12 includes a first support portion 121 . The first support portion 121 has a U shape, and a second through hole 124 is respectively disposed at a side of the U shape; and a second support portion 122 extends from a central portion of the first support portion 121. Referring to FIG. 5, the second through hole of the buckle support 12, the first through hole on the buckle base 11, and the center hole of the torsion spring 14 are defined, and the torsion spring 14 is defined on the two sides of the buckle base 11. The middle of the bosses; the two ends of the torsion spring 14 respectively abut against the buckle base 11 and the second support portion 122, thereby completing the buckle base 11, the torsion spring 14, the buckle support 12 and the defining screw 13. Assembly. Further, referring to FIG. 6, one end 141 of the torsion spring may be disposed in a straight shape, and the other end 142 is disposed in a slightly curved shape, and the linear end 141 is abutted against the bottom of the second supporting portion, and is slightly curved. One end 142 of the shape abuts against the top of the base of the fastener. In this embodiment, the number of torsion springs in the self-locking buckle is not limited. Preferably, two torsion springs are disposed in one self-locking buckle.

For the self-locking buckle, the main body on the second fixing portion can be designed as a sheet-like structure. As shown in FIG. 7 and FIG. 8 , the fastening member 22 also has a sheet-like structure and is disposed on the second fixing portion 2 . The side of the main body 21; the thickness of the fastening member 22 is thinner than the thickness of the main body 21, and is disposed at a position away from the device to be fixed. Referring to FIG. 9 , the self-locking process of the self-locking buckle is: the second fixing portion is abutted on the first fixing portion, and the position of the fastening component and the fastening component correspond to each other. Pressing the second fixing portion to give the second fixing portion a pressure F1, because the fastening member is attached to the surface of the fastening member, the fastening member can press the buckle to support an outward thrust F2, because of the buckle support and The buckle base is not fixed together, so the buckle support is rotated by the thrust in the direction of the second support portion of the axial direction, so that the buckle can enter the self-locking buckle (that is, the inside of the buckle support). Since the two ends of the torsion spring have an outward expansion force F3, when the buckle member enters the self-locking buckle, the buckle support rebounds in the direction of the second fixing portion due to the expansion force F3 of the spring, and The snapping operation is completed by abutting against the side 24 of the body of the second fixing portion. In order to enable the buckle member to enter the self-locking buckle more smoothly, the edge of the fastening member near the end surface of the fastening component can also be set as a curved surface, and further, the end surface can be disposed on the end surface. A curved step, as shown in FIG. 7, is provided with two curved steps 221 on the edge of the engaging member near the end face of the engaging member in FIG. A groove 123 is provided on the latching member of the first fixing portion at a position corresponding to the curved end surface of the upper edge of the engaging member, as shown in FIG. The second fixing portion can press the locking member into the fastening component. When the second fixing portion is pressed, the fastening component is attached to the surface of the fastening component because the fastening component is in contact with the fastening component. The end surface is curved, and a groove 123 matching the curved surface of the fastening member is disposed on the fastening member. Through the configuration 123 of the curved surface 221 and the groove, the fastening member can enter the self-locking buckle more easily. Further, in order to enable the fastening component to enter the self-locking buckle more smoothly, the inner surface of the first support portion of the buckle support corresponding to the fastening component may be disposed as a slope, as shown in FIG. 10 . As shown, the portion of the first support portion 121 that is beveled is thicker near the second support portion 122 than at the second support portion 122.

Further, in order to facilitate the disassembly of the fixing device, referring to FIG. 8, the length of the diagonal A of the main body portion 21 of the second fixing portion may be set to be larger than between the two side edges 24 of the engaging member. The distance B is preferably a linear shape in which the side edges 24 of the fastening member are arranged in a straight line. When the disassembly is performed, it is only necessary to rotate the device to be fixed fixed to the second fixing portion on a plane parallel to the second fixing portion, so that the second fixing portion can be separated from the first fixing portion. Since the length of the diagonal A of the main body portion of the second fixing portion is larger than the distance B between the two side edges of the fastening member 22, by the rotation, the self-locking mechanism can be given an outward thrust to make the self-locking The buckle support of the mechanism rotates in the direction of the second support portion, thereby giving a certain space to the fastening member of the second fixing portion, and the second fixing portion can be taken out from the first fixing portion.

In this embodiment, the second fixing portion can be connected to the device to be fixed by a detachable connecting member, such as the second fixing portion shown in FIG. 7, the second fixing portion includes the main body 21 and the fastening member 22, The main body 21 of the two fixing portion is provided with a plurality of fixing holes 23 through which the screws are fixed to the device to be fixed, so that the replacement and maintenance of the second fixing portion are facilitated. The second fastening portion can also be fastened to the device to be fastened, for example by welding, in a non-detachable manner. In order to fix the second fixing portion and the device to be fixed more firmly, the second fixing portion and the fixing portion can be fixed. The device is integrated.

Further, in order to adjust the tension of the torsion spring, an adjustable device can also be provided for the self-locking buckle. Referring to FIG. 5, the self-locking buckle further includes an adjusting screw 15 and a torsion spring washer 16 at The second supporting portion 122 is further provided with a through hole 1221. The adjusting screw 15 and the through hole 1221 are fixedly fixed on the second supporting portion 122. The torsion spring washer 16 is provided with a thread, and the torsion spring washer 16 is fixed by threading. On the screw 15, one end of the torsion spring 14 abuts against the upper surface of the snap base, and the other end is bottomed on the lower surface of the torsion spring washer. Since the torsion spring washer 16 is screwed to the adjustment screw 15, the tension of the torsion spring 14 can be adjusted by adjusting the height of the torsion spring washer 16. The adjusting screw 15 and the through hole 1221 of the second supporting portion 122 can be fixed in various manners, and a thread can be disposed in the through hole 1221, and the adjusting screw 15 is screwed on the second supporting portion 122. It is possible to control the tension of the torsion spring 14 by rotating the adjusting screw 15. Further, a nut may be disposed for the adjusting screw 15, and after the adjusting screw 15 passes through the through hole, the tuning screw 15 is fixed by a nut inside the snap supporting 12.

In order to prevent the buckle support from being overturned due to the tension of the torsion spring, the two ends of the torsion spring may be respectively fixed to the bottom of the buckle base and the second support portion supported by the buckle. A limit mechanism can also be provided for the self-locking buckle. The limit mechanism has various forms, and a limit block can be directly disposed on the buckle base to limit the overturning of the buckle support.

In this embodiment, the first fixing portion is provided with at least two fastening members, and at least one of the fastening members is a self-locking buckle. The embodiment provides a preferred first fixing portion. Referring to FIG. 1 , two latching members are disposed on the first fixing portion, one of which is a self-locking buckle 1 and the other of which is a fixed buckle 3; The fixing buckle 3 includes a fixing portion 31 for fixing with the buckle base 11 and a fastening portion 32 for engaging with the fastening member on the second fixing portion, and the fixing portion 31 passes the detachable connecting member It is fixed on the buckle base. The fixing portion 31 shown in the figure is provided with a through hole 311. Correspondingly, a corresponding through hole is arranged on the buckle base. The screw fixes the fixing portion 31 to the snap base through the through hole 311. Buckle The width of the hollow portion 321 for placing the fastening member is gradually increased from the top to the bottom. The reason why the width of the hollow portion 321 for placing the fastening member in the fastening portion is set to increase stepwise from top to bottom is that the fixing method of the fixing device provided by the embodiment is: by selecting the second fixing Therefore, the fastening member is taken out from the fastening member, so that a certain space needs to be reserved for the movement of the fastening member, so the width of the hollow portion 321 of the fastening portion for placing the fastening member is set to be It gradually increases from top to bottom. For the first fixing portion of the structure, the limiting mechanism can be designed in the following manner. Referring to FIG. 1 , the limiting mechanism includes a first limiting block 312 and a second limiting block 18 , and the first limiting block The setting 312 is disposed on the fixing portion of the fixing buckle near the end of the self-locking buckle, the second limiting portion 18 is disposed on the side of the first supporting portion of the buckle supporting; the second limiting block 18 is placed at the first limit Above block 312.

In this embodiment, when the first fixing portion includes only one buckle base, a through hole may be disposed on the buckle base, and the buckle base is fixed on a plane support such as a wall by a screw. If the first fixing portion can be fixed on the pole, two hook bases can be provided for the second fixing portion, and the two buckle bases are separately disposed. Referring to FIG. 2, the bottom surface of the buckle base 11 is disposed. There are fixed recesses 114, and fixed through holes 115 are provided on both sides of the bottom surface of the snap base 11, and the fixing screws 116 fix the two snap bases 11 through the fixed through holes 115 of the two snap bases 11 114 fixed way to make a fixed connection. Preferably, the fixing groove 114 has an angular cross section. Please refer to FIG. 11. FIG. 11 is a schematic structural view of the two snap bases after fixed connection. The fixing device of this structure can fix the device to be fixed on the pole. Referring to FIG. 12, FIG. 12 is a schematic diagram of fixing the device to be fixed on the pole by the fixing device provided by the present invention. The two snap bases 11 of the first fixing portion of the fixing device fix the holding rod 5 in the two fixing slots 114 and are fixedly connected by the fixing screws 116. The first fixing portion is fixed together by the engagement of the fastening member and the fastening member, and the fixing device 4 is fixed again with the first fixing portion, so that the fixing device 4 is fixed on the holding rod 5.

The above content is a further detailed description of the present invention in combination with specific embodiments. It is to be understood that the specific implementation of the invention is not limited to the description. For those skilled in the art to which the present invention pertains, a number of simple deductions or substitutions may be made without departing from the spirit and scope of the invention.

Claims

A fixing device, comprising: a first fixing portion and a second fixing portion, wherein the first fixing portion is provided with a latching member; and the second fixing portion is provided with a buckle for engaging with the latching member The first fixing portion and the second fixing portion are fixedly connected by the fastening of the snap member and the fastening member;

The first fixing portion is further provided with a fixing mechanism for fixing the first fixing portion on the support; the second fixing portion is disposed on the device to be fixed.
The fixing device according to claim 1, wherein the first fixing portion is provided with at least two fastening members, and the fastening member on the second fixing portion is disposed at a position corresponding to the fastening member Position

Among the fastening members provided on the first fixing portion, at least one of the fastening members is a self-locking buckle.
The fixing device according to claim 2, wherein the self-locking buckle (1) comprises a buckle base (11), a buckle support (12), a defining screw (13) and a torsion spring (14);

The buckle base (11) is provided with two bosses (111), and each of the bosses (111) is provided with a first through hole (112);

The buckle support (12) includes a first support portion (121), the first support portion (121) has a U shape, and a second through hole (124) is respectively disposed on a U-shaped side edge; a central portion of a support portion (121) extends out of the second support portion (122);

The defining screw (13) passes through the second through hole (124) of the snap support (12), the first through hole (112) on the buckle base (11), and the torsion spring (14) a hollow portion, the torsion spring (14) is defined in the middle of the two bosses (111) of the snap base (11); the two ends of the torsion spring (13) are respectively abutted against the The buckle base (11) and the second support (122) portion.
The fixing device according to claim 3, wherein the main body (21) of the second fixing portion (2) has a sheet-like structure, and the fastening member (22) also has a sheet-like structure and is disposed in the First a side edge of the main body (21) of the fixing portion (2); the fastening member (22) has a thickness thinner than a thickness of the main body (21), and is disposed at a position away from the device to be fixed; The length of the diagonal of the upper body (21) of the second fixing portion (2) is greater than the distance between the side edges of the fastening member (22).
The fixing device according to claim 4, wherein an edge of the fastening member (22) adjacent to the end surface of the fastening member is curved (221) on the fastening member of the first fixing portion and A groove is provided at a position corresponding to the curved end surface of the upper edge of the fastener.
The fixing device according to claim 5, wherein an inner surface of the first support portion (121) of the snap support (12) at a position corresponding to the fastening member is inclined (125), The portion of the first support portion (121) having a slope is thicker near the second support portion (122) than at the second support portion (122).
The fixing device according to claim 4, wherein the second fixing portion is connected to the device to be fixed by a detachable connecting member; or the second fixing portion is integrated with the device to be fixed.
The fixing device according to claim 4, wherein said first fixing member comprises two snap bases (11), and a fixing groove (114) is provided on a bottom surface of said snap base (11), Fixed holes (115) are disposed on two sides of the bottom surface of the buckle base (11), and the fixing screws (116) pass the two fastening bases through the fixing through holes (115) of the two fastening bases (11) (11) The fixed connection is made in such a manner that the fixing grooves (114) are opposed to each other.
The fixing device according to any one of claims 3-8, wherein the self-locking buckle (1) further comprises at least one for restricting the buckle support (12) from being affected by the tension of the torsion spring (14) Flip limit mechanism.
The fixing device according to claim 9, wherein said self-locking buckle (1) further comprises an adjusting screw (15) and a torsion spring washer (16), which are further disposed on said second supporting portion (122) There is a through hole (1221), and the adjusting screw (15) is fixed to the second supporting portion by the through hole (1221) (122), the torsion spring washer (16) is provided with a thread, and the torsion spring washer (16) is screwed to the adjusting screw, and one end of the torsion spring (14) abuts against the buckle The upper surface of the base (11) and the other end of the bottom are on the lower surface of the torsion spring washer (16).
The fixing device according to claim 10, wherein the two fastening members disposed on the first fixing portion, one of the fastening members is a self-locking buckle (1), and the other of the fastening members is a fixed buckle. (3); the fixing buckle (3) includes a fixing portion (31) for fixing with the buckle base (11) and a buckle for engaging with the fastening member on the second fixing portion a hinge portion (32), the fixing portion is fixed to the buckle base (11) by a detachable connecting member; the fastening portion (32) is for placing a hollow portion (321) of the fastening member from above The width to the bottom gradually increases.
The fixing device according to claim 11, wherein said limiting mechanism comprises a first limiting block (312) and a second limiting block (18), said first limiting block (312) being disposed in said The fixing portion (31) of the fixing buckle (3) is adjacent to one end of the self-locking buckle, and the second limiting block (18) is disposed at the side of the first supporting portion (121) of the buckle supporting (12) The second limiting block (18) is placed above the first limiting block (312).