Fastening structure

Abstract

The utility model discloses a fastening structure which comprises a shell, a fastening plate, a hinge assembly and a rotating assembly, and the shell is provided with a containing cavity with an opening in one end. The fastening plate is located in the containing cavity, and a clamping space is formed by the fastening plate and the shell; the hinge assembly is located in the containing cavity, and one end of the hinge assembly is hinged to the inner surface of the fastening plate; the rotating assembly comprises a threaded rotary knob and an adjusting block, the threaded rotary knob comprises a rotary knob part and a screw rod part which are connected, the screw rod part is located in the containing cavity, and the adjusting block is installed on the screw rod part in a threaded mode and abuts against the top of the hinge assembly. The feeding depth of the threaded knob is adjusted to control the closing angle of the hinge, when the hinge approaches inwards, the fastening plate is driven to be pushed outwards to achieve fastening, the problem that a user needs to take a tool for fastening is solved, and the strength of the whole installed hinge can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lamp assembly technical field, specifically is a fastening structure. BACKGROUND

[0002] The shield lamp is installed on the explosion-proof shield and is used for lighting or explosion flash to produce dazzling effect. When the shield lamp is installed on the shield, some fastening (installation) parts are used to assist the installation.

[0003] At present, most of the shield lamps on the market are fixed on the shield through screw fasteners. The above assembly mode needs to reserve multiple hole positions on the shield, which can cause damage to the shield. Moreover, tools (such as screwdrivers) must be used to disassemble and assemble, which is very inconvenient. A small part of the shield lamps are fixed by buckles. Although the above mode can improve the disassembly and assembly efficiency, the combination strength is not high, and the shield lamps are prone to falling off during use. UTILITY MODEL CONTENTS

[0004] In order to overcome the shortcomings of the prior art, the utility model aims at providing a fastening structure.

[0005] The utility model adopts the technical scheme as follows: a fastening structure, including casing, fastening plate, hinge assembly and rotating assembly, the casing has a containing cavity with one end opening; the fastening plate is located in the containing cavity, the fastening plate and the casing form a clamping space; the hinge assembly is located in the containing cavity, one end of the hinge assembly is hinged to the inner surface of the fastening plate; the rotating assembly includes a threaded knob and an adjusting block, the threaded knob includes a knob part and a screw rod part connected together, the screw rod part is located in the containing cavity, the adjusting block is screw-mounted on the screw rod part and abuts against the top of the hinge assembly; when the screw rod part is rotated, the adjusting block moves and pushes the hinge assembly to make an angle-reducing motion, the hinge assembly pushes the fastening plate to move horizontally to change the distance of the clamping space.

[0006] In a preferred embodiment, the hinge assembly includes a pin, a second pin, an upper hinge and a lower hinge, one end of the upper hinge and the lower hinge is hinged through the second pin, the other end of the upper hinge and the lower hinge is hinged together through the pin and the fastening plate respectively.

[0007] In a preferred embodiment, a through hole is formed on the upper hinge and the lower hinge to meet the vertical passing of the screw rod part.

[0008] In a preferred embodiment, the knob part and the screw rod part are integrally formed, and the knob part further has a light axis part extending into the containing cavity.

[0009] In a preferred embodiment, a positioning pin is detachably mounted on the optical axis part in the transverse direction, and when the outer end surface of the fastening plate is flush with the outer end surface of the accommodating cavity, the positioning pin abuts against the inner wall of the accommodating cavity.

[0010] In a preferred embodiment, a threaded hole is formed in the shell to be screwed with the tail of the screw part.

[0011] In a preferred embodiment, the knob part is located outside the shell, and an anti-skid pattern is arranged on the outer circumferential surface of the knob part.

[0012] In a preferred embodiment, a slot is formed in the inner surface of the fastening plate to allow the upper and lower hinges to open and close.

[0013] In a preferred embodiment, a bottom plate is further provided, and a notch is formed in the side surface of the shell to communicate with the accommodating cavity, a plurality of threaded holes are formed in the notch, and the bottom plate is fixed to the notch by a plurality of screws.

[0014] In summary, the shield is placed in the clamping space during installation, and the feeding depth of the threaded knob is adjusted, the adjustment block pushes the hinge assembly to perform an angular reduction movement during the feeding process, the upper and lower hinges are brought together inward at this time, and the fastening plate is pushed outward to achieve fastening during the process of bringing together, thereby solving the problem that the user needs to use a tool for fastening, and the installation and disassembly are more convenient, and the overall fastening between surfaces can also ensure the strength after overall installation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is an overall explosion three-dimensional structure schematic view of the utility model;

[0016] Fig. 2 It is an overall cross-sectional plane structure schematic view of the utility model;

[0017] Fig. 3 It is an overall plane structure schematic view of the utility model.

[0018] Marked in the figure: 1-fastening plate, 2-positioning pin, 3-shell, 31-accommodating cavity, 4-threaded knob, 41-knob part, 42-screw part, 5-second pin, 6-pin, 7-lower hinge, 8-upper hinge, 9-screw, 10-bottom plate, 11-adjustment block, 12-clamping space, 13-through hole. DETAILED DESCRIPTION

[0019] In order to make the utility model purposes, technical solutions and advantages more clearly, the following will be further described in detail with the help of the accompanying drawings and examples.

[0020] A fastening structure, referring to Figs. 1-3 , including a shell 3, a fastening plate 1, a hinge assembly and a rotating assembly, the shell 3 has an open receiving cavity 31 at one end; the fastening plate 1 is located in the receiving cavity 31, and the fastening plate 1 and the shell 3 form a clamping space 12; the hinge assembly is located in the receiving cavity 31, and one end of the hinge assembly is hingedly connected to the inner surface of the fastening plate 1; the rotating assembly includes a threaded knob 4 and an adjusting block 11, the threaded knob 4 includes a knob part 41 and a screw rod part 42 connected together, the screw rod part 42 is located in the receiving cavity 31, and a threaded hole 32 that satisfies the threaded connection with the tail part of the screw rod part 42 is further arranged in the shell 3, the adjusting block 11 is screw-installed on the screw rod part 42 and abuts against the top of the hinge assembly; when the screw rod part 42 is rotated, the adjusting block 11 moves and pushes the hinge assembly to make an angle-reducing movement, the hinge assembly pushes the fastening plate 1 to move in the transverse direction, so as to change the size of the clamping space 12; when installing, the shield installation position is placed in the clamping space 12, and then the feeding depth of the threaded knob 4 is adjusted; in the feeding process, the adjusting block 11 pushes the hinge assembly to make an angle-reducing movement, at this time, the hinges will be closer to each other, and in the process of closing, the fastening plate 1 is pushed outwards, the combination operation with the shield is realized by the cooperation of the fastening plate 1 and the shell 3 itself, the problem that the user needs to use a tool to fasten is solved, and the installation and disassembly are more convenient, and the overall fastening between the surfaces can also ensure the strength after the overall installation.

[0021] Optionally, anti-skid lines or anti-skid materials (such as silica gel) can be additionally designed on the outer surface of the fastening plate 1, so as to additionally improve the combination strength with the shield.

[0022] Further, the hinge assembly includes a pin 6, a second pin 5, an upper hinge 8 and a lower hinge 7, one end of the upper hinge 8 and the lower hinge 7 is hingedly connected through the second pin 5, the other end of the upper hinge 8 and the lower hinge 7 is hingedly connected together through the pin 6 and the fastening plate 1 respectively, the upper hinge 8 and the lower hinge 7 have an openable included angle therebetween, and the adjusting block 11 is located at the top of the upper hinge 8; in the process of pressing down the adjusting block 11, a downward pressure is applied to the upper hinge 8, the included angle between the upper hinge 8 and the lower hinge 7 will change correspondingly at this time, and the included angle between the upper hinge 8 and the lower hinge 7 will change correspondingly at this time, and the included angle between the upper hinge 8 and the lower hinge 7 will change correspondingly at this time.

[0023] Further, the upper hinge 8 and the lower hinge 7 are provided with through holes 13 for the screw rod 42 to pass through vertically, so that the screw rod 42 does not interfere with the upper hinge 8 and the lower hinge 7, and the opening and closing of the upper hinge 8 and the lower hinge 7 are not affected during the rotation of the screw rod 42.

[0024] Further, the knob part 41 and the screw rod 42 are integrally formed, and the bottom of the knob part 41 is provided with an optical axis part extending into the accommodating cavity 31, so that the integral strength is ensured and the overall mold cost is saved.

[0025] Further, the fastening plate 1 is provided with a positioning pin 2 which is detachably installed on the optical axis part in the transverse direction, and when the outer end surface of the fastening plate 1 is flush with the outer end surface of the accommodating cavity 31, the positioning pin 2 abuts against the inner wall of the accommodating cavity 31, so that the position of the threaded knob 4 is defined, and the threaded knob 4 is prevented from being detached from the shell 3 during the reverse rotation.

[0026] Further, the knob part 41 is located outside the shell 3, and the outer peripheral surface of the knob part 41 is provided with anti-skid lines, so that the rotation of the screw rod 42 can be realized without tools.

[0027] Further, the inner surface of the fastening plate 1 is provided with a slot for the opening and closing of the hinge assembly, so that the interference between the hinge assembly and the fastening plate 1 during the opening and closing of the hinge assembly is avoided.

[0028] Further, the shell 3 is provided with a notch communicating with the accommodating cavity 31, and the notch is provided with a plurality of threaded holes, and the bottom plate 10 is fixed to the notch by a plurality of screws 9, so that the bottom plate 10 can be detached from the notch, and the fastening structure can be assembled or disassembled through the notch.

[0029] It should be noted that the fastening structure can be used not only for the installation of the shield lamp, but also for the installation of similar structures in other fields, which will not be described in detail here.

[0030] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A fastening structure, characterized in that: include: a housing having a receiving cavity with one end open; a fastening plate, located in the accommodating cavity, wherein the fastening plate and the housing form a clamping space; a hinge assembly located in the accommodating cavity, one end of the hinge assembly being hingedly connected to the inner surface of the fastening plate; A rotating assembly, comprising a threaded knob and an adjustment block, wherein the threaded knob comprises a knob portion and a screw portion connected to each other, the screw portion being located in the accommodating cavity, the adjustment block being threadably mounted on the screw portion and abutting against the top of the hinge assembly; When the screw portion is rotated, the adjusting block moves and pushes the hinge assembly to perform an angular contraction movement, and the hinge assembly pushes the fastening plate to move in the transverse direction to change the spacing size of the clamping space.

2. A fastening structure according to claim 1, characterized in that: The hinge assembly includes a pin, a second pin, an upper hinge and a lower hinge. One end of the upper hinge and the lower hinge are hinged through the second pin, and the other ends of the upper hinge and the lower hinge are hinged to the fastening plate through pins respectively.

3. A fastening structure according to claim 2, characterized in that: The upper hinge and the lower hinge are provided with through holes for the screw rod to pass through in the vertical direction.

4. The fastening structure according to claim 1, wherein: The knob portion and the screw portion are integrally formed, and an optical axis portion extending into the accommodating cavity is further provided at the bottom of the knob portion.

5. A fastening structure according to claim 4, characterized in that: It also includes a positioning pin, which is detachably installed on the optical axis portion in the transverse direction. When the outer end surface of the fastening plate is flush with the outer end surface of the accommodating cavity, the positioning pin abuts against the inner wall of the accommodating cavity.

6. The fastening structure according to claim 1, wherein: The shell is further provided with a threaded hole which is threadedly connected to the tail of the screw portion.

7. The fastening structure according to claim 1, wherein: The knob portion is located outside the housing, and an outer peripheral surface of the knob portion is provided with anti-slip patterns.

8. The fastening structure according to claim 1, wherein: The inner surface of the fastening plate is provided with a slot that satisfies the vertical opening and closing of the hinge assembly.

9. The fastening structure according to claim 1, wherein: It also includes a bottom plate. The side of the shell is provided with a notch connected to the accommodating cavity. The notch is provided with a plurality of threaded holes. The bottom plate is fixed to the notch by a plurality of screws.

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