CN217633355U

CN217633355U - Multi-head rotary screw

Info

Publication number: CN217633355U
Application number: CN202220495146.8U
Authority: CN
Inventors: 苏玉强
Original assignee: Dongguan City Yu Huang Electronics Technology Co ltd
Current assignee: Dongguan City Yu Huang Electronics Technology Co ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-10-21
Anticipated expiration: 2032-03-09

Abstract

The utility model relates to a screw field specifically is bull rotation screw, including nut, first screw rod and telescopic machanism, the thread groove lower extreme is connected with first screw rod, nut and first screw rod internally mounted have the telescopic machanism that makes the screw of different models go up and down, the manhole has been seted up to first screw rod lower extreme lateral wall, the utility model discloses a flexible inside screw assembly of being convenient for gets the screw through not unidimensional and installs inside main screw to flexible removal convenient to use about as required has improved the practicality of screw.

Description

Multi-head rotary screw

Technical Field

The utility model relates to a screw field specifically is a rotatory screw of bull.

Background

The screw is a tool for fastening machine parts of the object step by utilizing the physics and mathematical principles of the inclined plane circular rotation and the friction force of the object, the screw is a general term of the fastener, and the screw is an indispensable industrial necessity in daily life in a daily oral language.

The existing screw has the following defects: the existing multi-head screw is provided with different screw heads at the upper end and the lower end, has larger size, is extremely inconvenient to use, and reduces the practicability of the screw.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rotatory screw of bull for solve the problem that current bull screw is not convenient for use.

Therefore, the utility model provides a rotatory screw of bull, including nut, first screw rod and telescopic machanism, the nut lower extreme is connected with first screw rod, nut and first screw rod internally mounted have the telescopic machanism that makes the screw of different models go up and down, the manhole has been seted up to first screw rod lower extreme lateral wall.

Preferably: telescopic machanism includes inside groove and first slot, the inside cartridge of inside groove has the second screw rod, the spout has been seted up to the second screw rod upper end left and right sides, the inside picture peg that inlays of spout is equipped with, the arm-tie is installed to the picture peg upper end, the spring is installed to arm-tie inner, first slot is seted up in the inside groove both sides, first slot lower extreme is connected with the spacing groove, the second slot has been seted up to the spacing groove lower extreme.

Preferably: the size of the inner groove is matched with that of the second screw rod.

Preferably: the size of the first slot and the second slot is the same as that of the inserting plate.

Preferably, the following components: the pulling plate is connected with one end of the spring, and the other end of the spring is connected with the side wall of the sliding groove.

Preferably: the width dimension of the limiting groove is the same as that of the inserting plate.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a manual drawing board of inwards nipping from the both sides outside makes it drive the lower extreme picture peg and to inner removal in the spout, make the picture peg outer end break away from in first slot and remove simultaneously, the drawing board makes spring shrink deformation convert kinetic energy into elastic potential energy to spring extrusion, at this moment promote the second screw rod downwards and make it move downwards including the inslot, the outer end gomphosis that makes the picture peg slides downwards in the spacing inslot simultaneously, after the picture peg moves downwards to second slot position, spring release potential energy promotes the picture peg outwards and makes it inlay in the second slot, thereby it stretches out fixedly to the second screw rod, thereby make the screw install in corresponding screw through the screw thread of second screw rod outer wall, after using the completion, inwards support from both sides manhole and press and make the picture peg second slot break away from, upwards promote the second screw rod and make the picture peg upwards insert once more and can accomplish the shrink of second screw rod in the first slot, be convenient for use the bull to carry out rotary installation, the practicality of screw has been improved.

Drawings

FIG. 1 is a schematic view of the three-dimensional structure of the present invention;

FIG. 2 is a schematic view of the front cross-sectional structure of the present invention;

fig. 3 is a schematic diagram of a partial enlarged structure in fig. 2 according to the present invention.

In the figure:

1. a nut; 2. a first screw; 301. an inner tank; 302. a second screw; 303. a chute; 304. inserting plates; 305. pulling a plate; 306. a spring; 307. a first slot; 308. a limiting groove; 309. a second slot; 4. a manhole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, which are preferred embodiments of the present invention, a multi-head rotary screw includes a nut 1, a first screw rod 2 and a telescopic mechanism, wherein the lower end of the nut 1 is connected to the first screw rod 2, the telescopic mechanisms for lifting screws of different models are installed inside the nut 1 and the first screw rod 2, and a manhole 4 is opened on a side wall of the lower end of the first screw rod 2.

Telescopic machanism includes inside groove 301 and first slot 307, the inside cartridge of inside groove 301 has second screw 302, spout 303 has been seted up to the second screw 302 upper end left and right sides, spout 303 is inside to be inlayed and is equipped with picture peg 304, picture peg 304 installs the arm-tie 305 in the upper end, spring 306 is installed to arm-tie 305 inner, first slot 307 is seted up in inside groove 301 both sides, first slot 307 lower extreme is connected with spacing groove 308, second slot 309 has been seted up to spacing groove 308 lower extreme, the size of a dimension of inside groove 301 and second screw 302 coincide each other, the size of a dimension of first slot 307 and second slot 309 is the same with picture peg 304's size of a dimension, arm-tie 305 connects spring 306's one end, spring 306's the other end is connected at spout 303 lateral wall, the size of a width of spacing groove 308 is the same with picture peg 304's size of a width, and the not unidimensional screw of being convenient for is installed inside main screw to telescopic movement convenient to use about needing has improved the practicality of screw.

The utility model discloses a work flow and principle: the pulling plate 305 is manually squeezed from the outer parts of the two sides inwards to drive the lower end inserting plate 304 to move inwards in the sliding groove 303, meanwhile, the outer end of the inserting plate 304 is separated from and moves out in the first slot 307, the pulling plate 305 extrudes the spring 306 to enable the spring 306 to contract and deform to convert kinetic energy into elastic potential energy, at this time, the second screw 302 is pushed downwards to enable the second screw 302 to move downwards in the inner groove 301, at the same time, the outer end of the inserting plate 304 is embedded in the limiting groove 308 to slide downwards, after the inserting plate 304 moves downwards to the position of the second slot 309, the spring 306 releases the potential energy to push the inserting plate 304 outwards to enable the inserting plate to be embedded in the second slot 309, so that the second screw 302 is stretched out and fixed, the screw is installed in a corresponding screw hole through the thread of the outer wall of the second screw 302, after the use, the inserting plate 304 is separated from the second slot 309 through inward pressing from the manhole 4 on the two sides, the inserting plate 304 upwards again into the first slot 307, and then the second screw 302 is pushed upwards to complete the contraction of the second screw 302.

The above description is for further details of the present invention, and it should not be assumed that the embodiments of the present invention are limited to these descriptions, and that a person of ordinary skill in the art to which the present invention pertains can make several simple deductions or substitutions without departing from the spirit of the present invention, and all should be considered as belonging to the protection scope defined by the claims submitted by the present invention.

Claims

1. A multi-head rotary screw is characterized in that: including nut (1), first screw rod (2) and telescopic machanism, nut (1) lower extreme is connected with first screw rod (2), nut (1) and first screw rod (2) internally mounted have the telescopic machanism that makes the screw of different models go up and down, manhole (4) have been seted up to first screw rod (2) lower extreme lateral wall.

2. A multi-start rotary screw according to claim 1, further comprising: telescopic machanism includes inside groove (301) and first slot (307), inside cartridge of inside groove (301) has second screw rod (302), spout (303) have been seted up to second screw rod (302) upper end left and right sides, spout (303) inside inlays and is equipped with picture peg (304), arm-tie (305) are installed to picture peg (304) upper end, spring (306) are installed to arm-tie (305) the inner, first slot (307) are seted up in inside groove (301) both sides, first slot (307) lower extreme is connected with spacing groove (308), second slot (309) have been seted up to spacing groove (308) lower extreme.

3. A multi-start rotary screw according to claim 2, further comprising: the size of the inner groove (301) is matched with that of the second screw (302).

4. A multi-headed rotary screw according to claim 2, wherein: the size of the first slot (307) and the second slot (309) is the same as that of the plug board (304).

5. A multi-headed rotary screw according to claim 2, wherein: the pulling plate (305) is connected with one end of a spring (306), and the other end of the spring (306) is connected with the side wall of the sliding groove (303).

6. A multi-headed rotary screw according to claim 2, wherein: the width dimension of the limiting groove (308) is the same as that of the inserting plate (304).