CN210423347U

CN210423347U - Lamp mounting screw

Info

Publication number: CN210423347U
Application number: CN201920911486.2U
Authority: CN
Inventors: 廖学平; 刘应句; 欧阳宁锋
Original assignee: ZheJiang Klite Lighting Holdings Co Ltd
Current assignee: ZheJiang Klite Lighting Holdings Co Ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-04-28
Anticipated expiration: 2029-06-17

Abstract

The utility model belongs to the technical field of the machine part technique and specifically relates to a lamps and lanterns installation screw is related to. The utility model provides a lamps and lanterns mounting screw, includes outer screw and interior screw, outer screw include outer screw rod, the one end of outer screw rod be provided with outer screwhead, outer screw rod on be provided with self tapping profile of teeth, be provided with well cavity in outer screwhead and the outer screw rod, interior screw rod including having the external screw thread, the one end of interior screw rod be provided with interior screwhead, interior screw rod and well cavity cooperation setting. The utility model discloses can labour saving and time saving when installing materials such as plank or gypsum board with lamps and lanterns on, it is convenient to dismantle moreover.

Description

Lamp mounting screw

Technical Field

The utility model belongs to the technical field of the machine part technique and specifically relates to a lamps and lanterns installation screw is related to.

Background

When on the existing market with lamps and lanterns fixed mounting on materials such as plank or gypsum board, must use the percussion drill to punch and downthehole expansion pipe that needs to fill, this installation operation not only wastes time and energy, dismantles inconvenience moreover.

As shown in fig. 8, which is a schematic view of a conventional lamp mounting manner, when the lamp mounting bracket 18 is mounted on a wood board, not only a percussion drill is required to punch holes in the wood board in advance, but also the expansion pipes 19 are required to be filled in the holes, which results in that the mounting is time-consuming and labor-consuming, and the dismounting is inconvenient.

For example, Chinese patent publication numbers are: CN109469850A, a method for installing a safety exit indicator lamp disclosed in 2019, 3, 15, which comprises the following steps: a. the method comprises the following steps of prefabricating a safety exit indicating lamp base plate, prefabricating a safety exit indicating lamp hanging plate and c, installing a safety exit indicating lamp. Although the installation method of the safety exit indicating lamp can ensure the installation quality, quicken the construction progress and reduce the engineering cost, the installation method not only needs to punch holes in advance, but also needs to embed the plastic expansion pipes in the holes, so that the installation method is time-consuming and labor-consuming, and the disassembly is inconvenient.

Disclosure of Invention

The utility model discloses mainly be to when installing materials such as plank or gypsum board with lamps and lanterns in the prior art on, must use the percussion drill to punch and downthehole expansion pipe that needs to fill, not only waste time and energy, dismantle inconvenient problem moreover, provide a lamps and lanterns construction screw, when installing materials such as plank or gypsum board with lamps and lanterns on, need not use the percussion drill to punch and need not fill the expansion pipe, can labour saving and time saving, it is convenient to dismantle moreover.

The purpose of the utility model is mainly realized by the following scheme: the utility model provides a lamps and lanterns mounting screw, includes outer screw and interior screw, outer screw include outer screw rod, the one end of outer screw rod be provided with outer screwhead, outer screw rod on be provided with self tapping profile of teeth, be provided with well cavity in outer screwhead and the outer screw rod, interior screw rod including having the external screw thread, the one end of interior screw rod be provided with interior screwhead, interior screw rod and well cavity cooperation setting. The outer screw comprises an outer screw rod, one end of the outer screw rod is provided with an outer screw head, the outer screw rod is provided with self-tapping threads, the self-tapping threads are designed to enable the screw to be easily screwed into a wood board and are extremely firm, hollow cavities are formed in the outer screw head and the outer screw rod, the inner screw comprises an inner screw rod with external threads, one end of the inner screw rod is provided with an inner screw rod, the inner screw rod is matched with the hollow cavities, when a lamp is installed, a worker firstly screws the outer screw rod into the wood board by using a screwdriver matched with the head of the outer screw rod, then places holes in the lamp installation support corresponding to the hollow cavities in the outer screw head, the worker then penetrates the inner screw rod in the inner screw rod through the installation support and places the inner screw rod at the opening of the hollow cavities, then the worker rotates the inner screw rod through the screwdriver matched with the head of the inner screw rod and screws the inner screw rod into the hollow cavities, and finally enables the lamp, the operation is very simple, the whole installation step can be completed by only one common screwdriver, the disassembly is also very convenient, and the assembly and the disassembly are easy.

Preferably, the cavity is internally provided with a cavity rib matched with the inner screw rod along the axial direction. The cavity intracavity is provided with along axial direction with inner screw matched with intracavity muscle, the setting of intracavity muscle can improve the steadiness when outer screw is connected with interior screw.

Preferably, the number of the ribs in the cavity is four, and the four ribs in the cavity are uniformly distributed in the hollow cavity. The quantity of intracavity muscle is four, and four intracavity muscle evenly distributed are in the cavity for the fixing in the cavity that the inner screw can be more stable.

Preferably, the one end that outer screw head was kept away from to outer screw rod be sharp end, outer screw rod on be close to sharp-pointed end department and be provided with the chip removal muscle, the chip removal muscle be rectangular form and set up along outer screw rod's radial direction. The one end that outer screwhead was kept away from to outer screw rod is sharp end, is close to sharp-pointed end department on the outer screw rod and is provided with the chip removal muscle, and the chip removal muscle is rectangular form and sets up along outer screw rod's radial direction, and in the plank was attacked outer screw in being convenient for to the setting of sharp end, the setting of chip removal muscle can bore a hole in the plank, and the piece can be held in this hole, can also prevent to crack the plank, if do not have the chip removal muscle, when outer screw directly attacked towards the plank the inside, the plank is cracked easily.

Preferably, the radial length of each self-tapping thread on the outer screw rod gradually decreases in a direction away from the outer screw head. The radial length of each self-tapping thread on the outer screw rod reduces gradually toward keeping away from outer screw head direction in proper order, and in the outer screw of being convenient for twisted into the plank, when outer screw was fixed on the plank, mainly lean on the great self-tapping thread of radial length to provide the fastening power, and the setting up of this structure makes outer screw can more stable fix on the plank.

Preferably, the outer screw is formed by die casting aluminum alloy. The outer screw is formed by aluminum alloy die-casting, and is convenient to produce and low in cost.

As preferred, still include the check lock lever, interior screwhead and interior screw on be provided with check lock lever matched with locking chamber, the one end of check lock lever be provided with the locking head, the both sides correspondence of the other end of check lock lever be provided with the holding tank, the holding tank in be provided with a gag lever post, the top of gag lever post rotate to be connected on the check lock lever, be provided with the expansion hole on being located the check lock lever between two gag lever posts, through the expansion spring who passes the expansion hole between two gag lever posts and connect, the top of well cavity be provided with be located the outer screw rod and with gag lever post matched with apical chamber. The lamp mounting bracket further comprises a locking rod, locking cavities matched with the locking rod are arranged on the inner screw head and the inner screw rod, the locking rod can slide in the locking cavities, a locking head is arranged at one end of the locking rod, accommodating grooves are correspondingly formed in two sides of the other end of the locking rod, a limiting rod is arranged in the accommodating grooves, the top ends of the limiting rods are rotatably connected to the locking rod, the top ends of the two limiting rods are hinged to the locking rod through a rotating shaft and can rotate along the rotating shaft, an expansion hole is formed in the locking rod between the two limiting rods, the two limiting rods are connected through an expansion spring penetrating through the expansion hole, a top cavity which is located in the outer screw rod and matched with the limiting rod is arranged at the top end of the hollow cavity, after the lamp mounting bracket is fixed between the inner screw nail and the outer screw nail, a worker firstly grips the two limiting rods, so that the two limiting rods are limited in the accommodating grooves, then with the one end immigration locking intracavity that has the gag lever post on the locking lever, when the gag lever post got into a intracavity completely, there was not the spring force of external force restriction expanding spring this moment, consequently under the elastic force effect for two gag lever posts rotate and open, then the bottom of gag lever post can support on the bottom surface in a chamber, the locking head also just supports on the internal screw head this moment, thereby makes the internal screw be difficult for breaking away from the external screw, can make lamps and lanterns installing support more firmly fixed.

Therefore, the utility model discloses a lamps and lanterns mounting screw possesses following advantage: the utility model discloses simple structure, the simple operation can labour saving and time saving when installing materials such as plank or gypsum board with lamps and lanterns on, and it is convenient to dismantle moreover, and production is convenient, and is with low costs, and the lamps and lanterns installing support can be fixed comparatively steadily, and installation life is long.

Drawings

Fig. 1 is a schematic structural diagram of the external screw of the present invention.

Fig. 2 is a sectional view of the outer screw of the present invention.

Fig. 3 is a top view of the outer screw of the present invention.

Fig. 4 is a schematic structural diagram of the middle and inner screw of the present invention.

Fig. 5 is a schematic structural diagram of the present invention.

Fig. 6 is a partial cross-sectional view of a locking bar in accordance with the present invention.

Fig. 7 is a schematic view of a lamp installation method of the present invention.

Fig. 8 is a schematic view of a conventional lamp installation.

Illustration of the drawings: 1-external screw head, 2-chip removal rib, 3-self-tapping thread, 4-external screw rod, 5-top cavity, 6-cavity internal rib, 7-hollow cavity, 8-internal screw rod, 9-internal screw head, 10-limiting rod, 11-locking rod, 12-expansion spring, 13-accommodating groove, 14-expansion hole, 15-wood plate, 16-external screw, 17-internal screw, 18-lamp mounting bracket, 19-expansion pipe, 20-locking cavity and 21-locking head.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example 1:

as shown in fig. 1, 2, 3, 4, 5 and 7, a lamp mounting screw comprises an outer screw 16 and an inner screw 17, wherein the outer screw 16 comprises an outer screw rod 4, an outer screw head 1 is arranged at one end of the outer screw rod 4, a self-tapping thread 3 is arranged on the outer screw rod 4, the screw can be easily screwed into a wood board 15 through the self-tapping thread 3, the outer screw rod is extremely firm, one end of the outer screw rod 4, which is far away from the outer screw head 1, is a sharp end, a chip removal rib 2 is arranged on the outer screw rod 4, which is close to the sharp end, the chip removal rib 2 is in a long strip shape and is arranged along the radial direction of the outer screw rod 4, the sharp end is convenient for screwing the outer screw into the wood board 15, the chip removal rib 2 can be arranged to drill a hole in the wood board 15, the hole can contain chips and can also prevent the wood board 15 from being cracked, if the outer screw rod directly taps into the wood board 15 without the, the radial length of each self-tapping thread 3 on the outer screw rod 4 is gradually reduced towards the direction far away from the outer screw head 1 in sequence, so that the outer screw can be conveniently screwed into the wood board 15, when the outer screw is fixed on the wood board 15, the fastening force is mainly provided by the self-tapping threads 3 with larger radial length, the outer screw can be more stably fixed on the wood board 15 due to the arrangement of the structure, the outer screw is formed by aluminum alloy through die-casting, the production is convenient, and the cost is low; hollow cavities 7 are arranged in the outer screw head 1 and the outer screw rod 4, the inner screw 17 comprises an inner screw rod 8 with an external thread, one end of the inner screw rod 8 is provided with an inner screw head 9, the inner screw rod 8 is matched with the hollow cavities 7, cavity ribs 6 matched with the inner screw rod 8 are arranged in the hollow cavities 7 along the axial direction, the arrangement of the cavity ribs 6 can improve the stability of the outer screw in connection with the inner screw, the number of the cavity ribs 6 is four, and the four cavity ribs 6 are uniformly distributed in the hollow cavities 7, so that the inner screw can be more stably fixed in the hollow cavities 7; when a lamp is installed, a worker firstly screws an outer screw 16 into a wood board 15 by using a screwdriver matched with an outer screw head 1, then places a hole in a lamp installation support 18 corresponding to a hollow cavity 7 in the outer screw head 1, then the worker puts an inner screw 8 on an inner screw 17 through the installation support and to an opening of the hollow cavity 7, then the worker rotates the inner screw by using the screwdriver matched with an inner screw head 9 and screws the inner screw into the hollow cavity 7, and finally the lamp installation support 18 is fixed between the outer screw head 1 and the inner screw head 9; and the arrangement of the inner screw 8 can provide effective supporting function for the hollow outer screw 4, and prevent deformation under the extrusion of the wood board 15.

The lamp fixing device further comprises a locking rod 11, a locking cavity 20 matched with the locking rod 11 is arranged on the inner screw head 9 and the inner screw 8, the locking rod 11 can slide in the locking cavity 20, the locking head 21 is arranged at one end of the locking rod 11, as shown in fig. 6, two accommodating grooves 13 are correspondingly arranged at two sides of the other end of the locking rod 11, a limiting rod 10 is arranged in each accommodating groove 13, the top end of each limiting rod 10 is rotatably connected to the locking rod 11, the top ends of the two limiting rods 10 are hinged to the locking rod 11 through a rotating shaft, the limiting rods 10 can rotate along the rotating shaft, an expansion hole 14 is arranged on the locking rod 11 between the two limiting rods 10, the two limiting rods 10 are connected through an expansion spring 12 penetrating through the expansion hole 14, a top cavity 5 which is arranged in the outer screw 4 and matched with the limiting rods 10 is arranged at the top end of the hollow cavity 7, and the lamp mounting bracket 18 is fixed between the, the worker firstly grips the two limiting rods 10, so that the two limiting rods 10 are limited in the accommodating groove 13 after overcoming the spring force of the expansion spring 12, then one end of the locking rod 11 with the limiting rods 10 is moved into the locking cavity 20, when the limiting rods 10 completely enter the top cavity 5, no external force is applied to limit the spring force of the expansion spring 12, so that the two limiting rods 10 rotate and open like an umbrella under the action of elastic force, then the bottom of the limiting rods 10 can abut against the bottom surface of the top cavity 5, and the locking head also abuts against the inner screw head 9, so that the inner screw is not easy to separate from the outer screw, and the lamp mounting bracket 18 can be fixed more firmly; the diameter of the locking head 21 is larger than that of the inner screw head 9, so that the locking head 21 can clamp the inner screw more effectively; the top cavity 5 is conical, is convenient to process, is matched with the shape of the limiting rod 10 when being unfolded, and is convenient for the limiting rod 10 to expand and unfold under the action of the spring force of the expansion spring 12.

It should be understood that this example is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

Claims

1. The utility model provides a lamps and lanterns mounting screw, its characterized in that includes outer screw and interior screw, outer screw include outer screw rod, the one end of outer screw rod be provided with outer screwhead, outer screw rod on be provided with self tapping profile of teeth, be provided with well cavity in outer screwhead and the outer screw rod, interior screw including the interior screw rod that has the external screw thread, the one end of interior screw rod be provided with interior screwhead, interior screw rod and well cavity cooperation setting.

2. A lamp mounting screw as claimed in claim 1, wherein the hollow cavity is provided with cavity ribs in axial direction for engaging with the inner screw.

3. A lamp mounting screw as claimed in claim 2, wherein the number of said ribs in said cavity is four, and four ribs in said cavity are uniformly distributed in said cavity.

4. A lamp mounting screw as claimed in claim 1, wherein the end of the outer screw rod remote from the outer screw head is a sharp end, and a chip removal rib is provided on the outer screw rod near the sharp end, the chip removal rib being elongated and arranged along the radial direction of the outer screw rod.

5. A lamp mounting screw as claimed in claim 1, 2, 3 or 4, wherein the radial length of each self-tapping thread on the outer shank decreases in a direction away from the head of the outer screw.

6. A lamp mounting screw as claimed in claim 1, 2, 3 or 4, wherein said outer screw is die cast of an aluminum alloy.

7. A lamp mounting screw as claimed in claim 1, 2, 3 or 4, further comprising a locking rod, wherein the inner screw head and the inner screw rod are provided with locking cavities matched with the locking rod, one end of the locking rod is provided with a locking head, two sides of the other end of the locking rod are correspondingly provided with accommodating grooves, a limiting rod is arranged in the accommodating groove, the top end of the limiting rod is rotatably connected to the locking rod, the locking rod between the two limiting rods is provided with an expansion hole, the two limiting rods are connected through an expansion spring passing through the expansion hole, and the top end of the hollow cavity is provided with a top cavity which is arranged in the outer screw rod and matched with the limiting rod.