阅读说明：本技术 一种磁控式防松脱螺栓 (Magnetic control type anti-loosening bolt ) 是由 林琥 邵静 于 2021-01-20 设计创作，主要内容包括：本发明涉及五金连接件技术领域,尤其是一种磁控式防松脱螺栓,包括主螺杆、螺纹套接在主螺杆外侧的装配螺帽和轴向固定在主螺杆顶端的螺杆头。本发明的一种磁控式防松脱螺栓由主螺杆、装配螺帽和螺杆头组成,通过在装配螺帽外侧开设内置分体式外部控制装置的外六角调节槽,在装配螺帽内部开设内置弹性内侧限位插块的内部伸缩盲孔,在分体式外部控制装置内部开设内置弹性磁控吸附球的内侧定位盲孔,利用弹性内侧限位插块插入侧向限位槽使得主螺杆和装配螺帽卡接固定,大大提升螺栓的装配稳定性和防松脱性；弹性挤压防松脱机构和磁性分离机构均采用内置式布局,不仅可以提升其耐用性和安全性,同时不会占用外部空间,使得整体结构更加紧凑。(The invention relates to the technical field of hardware connecting pieces, in particular to a magnetic control type anti-loosening bolt which comprises a main screw rod, an assembling nut in threaded sleeve connection with the outer side of the main screw rod, and a screw rod head axially fixed at the top end of the main screw rod. The magnetic control type anti-loosening bolt comprises a main screw, an assembly nut and a screw head, wherein an outer hexagonal adjusting groove with a built-in split type external control device is formed in the outer side of the assembly nut, an inner telescopic blind hole with a built-in elastic inner side limiting insert block is formed in the assembly nut, an inner side positioning blind hole with a built-in elastic magnetic control adsorption ball is formed in the split type external control device, the main screw and the assembly nut are clamped and fixed by inserting the elastic inner side limiting insert block into a lateral limiting groove, and the assembly stability and the anti-loosening performance of the bolt are greatly improved; the elastic extrusion anti-loosening mechanism and the magnetic separation mechanism are both arranged in a built-in mode, so that the durability and the safety of the elastic extrusion anti-loosening mechanism can be improved, meanwhile, the external space cannot be occupied, and the whole structure is more compact.)

1. The utility model provides a magnetic control formula locking bolt that takes off, includes assembly nut (2) and the axial fixation screw head on main screw rod (1) top that main screw rod (1), screw sleeve joint in main screw rod (1) outside, characterized by: the outer side surface of the main screw rod (1) is provided with a lateral limiting groove (3), the inner side surface of the assembly nut (2) is provided with three inner telescopic blind holes (4), the inner part of each inner telescopic blind hole (4) is provided with an inner limiting insert block (5) in an opening position in an inserted manner, the top end of each inner limiting insert block (5) is provided with an iron inner extrusion spring (6) in the inner telescopic blind hole (4) in a detachable manner, the outer side surface of the assembly nut (2) is provided with an outer hexagonal adjusting groove (7) with an opening at one side, the inner side surface of each outer hexagonal adjusting groove (7) corresponding to the inner telescopic blind hole (4) is provided with an arc-shaped outer control through hole (8) communicated with the inner part of the inner telescopic blind hole (4), and the inner side opening position of each arc-shaped outer control through hole (9) is provided with an annular limiting, and a split type external control device is arranged in the outer hexagonal adjusting groove (7).

2. The magnetic control type anti-loosening bolt as claimed in claim 1, which is characterized in that: split type external control device including cup joint in inside side direction assembly ring (11) of outer hexagonal adjustment tank (7), set up inboard location blind hole (12) on side direction assembly ring (11) medial surface, install magnetic control absorption ball (13) inboard at inboard location blind hole (12) and be used for controlling magnetic control absorption ball (13) and install the inside shell fragment (14) that resets at inboard location blind hole (12), magnetic control absorption ball (13) through insert annular spacing cover (10) inside with iron inside extrusion spring (6) be connected.

3. The magnetic control type anti-loosening bolt as claimed in claim 1, which is characterized in that: the iron inside extrusion spring (6) the equal fixedly connected with in both ends vertical iron assembly pole (15), annular spacing cover (10) medial extremity set up the internally mounted draw-in groove that has vertical assembly opening, iron inside extrusion spring (6) insert internally mounted draw-in groove and annular spacing cover (10) fixed connection through vertical iron assembly pole (15).

4. The magnetic control type anti-loosening bolt as claimed in claim 2, wherein: the magnetic control adsorption ball (13) comprises an external spherical hollow-structure aluminum shell (16) and a spherical permanent magnet (17) installed inside the aluminum shell (16), an external mounting groove (18) for installing the reset elastic sheet (14) is formed in the outer side surface of the aluminum shell (16), and an internal mounting groove (19) for installing the reset elastic sheet (14) is formed in the inner side surface of the internal positioning blind hole (12).

5. The magnetic control type anti-loosening bolt as claimed in claim 2, wherein: outer hexagonal adjustment tank (7) lateral surface on seted up outside arc mounting groove (20), inside flexible blind hole (4) and outside arc mounting groove (20) interval arrangement outside on hexagonal adjustment tank (7), inside flexible blind hole (4) and outside arc mounting groove (20) be the ring array mode and set up on outer hexagonal adjustment tank (7).

6. The magnetic control type anti-loosening bolt as claimed in claim 1, which is characterized in that: the outer side surface of the split type external control device and the outer side surface of the assembling nut (2) are positioned on the same plane.

7. The magnetic control type anti-loosening bolt as claimed in claim 3, wherein: the inner side end of the inner side limiting insertion block (5) is provided with a lateral mounting groove (21) matched with the longitudinal iron assembly rod (14), and the inner width of the lateral mounting groove (21) is gradually increased from an outer opening to the inside.

Technical Field

The invention relates to the technical field of hardware connecting pieces, in particular to a magnetic control type anti-loosening bolt.

Background

Bolt: mechanical parts, cylindrical threaded fasteners fitted with nuts. A fastener consisting of a head part and a screw (a cylinder with external threads) needs to be matched with a nut and is used for fastening and connecting two parts with through holes. This form of connection is known as a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so that the bolt connection belongs to detachable connection.

According to the stress mode of connection: both plain and reamed. According to the shape of the head: hexagonal, round, square, countersunk, etc. With a hex head being the most common. A countersunk head is typically used where attachment is desired.

Bolts are scarce in daily life and in industrial production and manufacture, and are also called industrial rice. It can be seen that the bolt has wide application. The application range of the bolt is as follows: electronic products, mechanical products, digital products, electrical equipment and electromechanical products. The bolt is also useful in ships, vehicles, hydraulic engineering, and even chemical experiments. Bolts are available in many places. Particularly precision bolts used on digital products. Micro bolts used for DVDs, cameras, glasses, clocks, electronics, and the like; bolts for televisions, electric appliances, musical instruments, furniture, etc.; large bolts and nuts are used for engineering, buildings and bridges; transportation equipment, airplanes, electric cars, automobiles, and the like are used with large and small bolts. Bolts have an important task in industry, and as long as there is industry on earth, the function of bolts is of permanent importance.

Bolt simple structure on the present market, functional very single, it is limited to prevent taking off the performance after the assembly is accomplished, has consequently appeared a series of locking bolts that take off on the market, for example the application number is: 201921999368.8, the locking looseness of its post-assembling that can promote greatly of this kind of bolt, but because it is mainly to accomplish spacingly through one-way elasticity extrusion, because stop gear exposes moreover, lead to the locking performance of taking off still not enough, life is not long, simultaneously because the structure is fixed, can't dismantle, lead to later stage cost of maintenance low.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to solve the problems existing in the background technology, the improved magnetic control type anti-loosening bolt is provided, and the problems that the anti-loosening performance of bolts on the market is limited at present, the limit is mainly completed through one-way elastic extrusion, a limit mechanism is exposed, the anti-loosening performance is still insufficient, the service life is short, and meanwhile, the later-period maintenance cost is low due to the fact that the structure is fixed and the bolts cannot be disassembled are solved.

The technical scheme adopted by the invention for solving the technical problems is as follows: a magnetic control type anti-loosening bolt comprises a main screw rod, an assembly nut and a screw head, wherein the assembly nut is sleeved outside the main screw rod in a threaded manner, the screw head is axially fixed at the top end of the main screw rod, a lateral limiting groove is formed in the outer side surface of the main screw rod, three inner telescopic blind holes are formed in the inner side surface of the assembly nut, an inner limiting insert block is inserted in an opening position in the inner telescopic blind holes, an iron inner extrusion spring is detachably mounted in the inner telescopic blind holes at the top end of the inner limiting insert block, an outer hexagonal adjusting groove with an opening at one side is formed in the outer side surface of the assembly nut, arc-shaped external control through holes communicated with the inner telescopic blind holes are formed in the inner side surface of the outer hexagonal adjusting groove corresponding to the inner telescopic blind holes, and annular limiting covers protruding towards the inner telescopic blind holes are, and a split type external control device is arranged in the outer hexagonal adjusting groove.

Split type external control device including cup joint at the inside side direction assembly ring of outer hexagonal adjustment tank, set up inboard location blind hole on the side direction assembly ring inboard, install the inboard magnetic control adsorption ball of inboard location blind hole and be used for controlling the magnetic control adsorption ball and install the inside shell fragment that resets of inboard location blind hole, the magnetic control adsorption ball through insert inside the annular spacing cover and the inside extrusion spring of iron be connected.

The equal fixedly connected with vertical iron assembly pole in iron inside extrusion spring both ends, annular spacing cover medial extremity set up the internally mounted draw-in groove that has vertical assembly opening, the inside extrusion spring of iron insert internally mounted draw-in groove and annular spacing cover fixed connection through vertical iron assembly pole.

The magnetic control adsorption ball comprises an external spherical hollow structure aluminum shell and a spherical permanent magnet arranged inside the aluminum shell, wherein an outer side mounting groove used for mounting the reset elastic sheet is formed in the outer side surface of the aluminum shell, and an inner side mounting groove used for mounting the reset elastic sheet is formed in the inner side surface of the inner side positioning blind hole.

Outer hexagonal adjustment tank lateral surface on seted up outside arc mounting groove, inside flexible blind hole and outside arc mounting groove interval arrangement on outer hexagonal adjustment tank, inside flexible blind hole and outside arc mounting groove be the annular array mode and set up on outer hexagonal adjustment tank.

The outer side surface of the split type external control device and the outer side surface of the assembling nut are positioned on the same plane.

The inner side end of the inner side limiting insertion block is provided with a lateral mounting groove matched with the longitudinal iron assembly rod, and the inner width of the lateral mounting groove is gradually increased from an outer opening inwards.

The invention has the beneficial effects that:

(1) the magnetic control type anti-loosening bolt comprises a main screw, an assembly nut and a screw head, wherein an outer hexagonal adjusting groove with a built-in split type external control device is formed in the outer side of the assembly nut, an inner telescopic blind hole with a built-in elastic inner side limiting insert block is formed in the assembly nut, an inner side positioning blind hole with a built-in elastic magnetic control adsorption ball is formed in the split type external control device, the main screw and the assembly nut are clamped and fixed by inserting the elastic inner side limiting insert block into a lateral limiting groove, and the assembly stability and the anti-loosening performance of the bolt are greatly improved;

(2) the elastic inner side limiting insert block can be controlled to stretch out and draw back in the inner telescopic blind hole through the split type external control device, so that the main screw rod and the assembling nut can be conveniently separated, and the disassembly is convenient;

(3) longitudinal iron assembly rods are fixedly connected to two ends of the iron internal extrusion spring, and are detachably assembled with the inner side limiting insert block and the annular limiting cover respectively, so that the internal limiting mechanism is convenient to assemble and disassemble, and the later-stage use cost is reduced;

(4) the outer side surface of the outer hexagonal adjusting groove is provided with inner telescopic blind holes and outer arc-shaped mounting grooves which are annularly arranged at intervals, and the inner telescopic blind holes and the outer arc-shaped mounting grooves are inserted into the lateral limiting grooves on the outer side surface of the main screw rod from multiple directions, so that the limiting stability and the firmness of the whole main screw rod and the assembling nut are greatly improved;

(5) the elastic extrusion anti-loosening mechanism and the magnetic separation mechanism are both arranged in a built-in mode, so that the durability and the safety of the elastic extrusion anti-loosening mechanism can be improved, meanwhile, the external space cannot be occupied, and the whole structure is more compact.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic structural view of the present invention.

FIG. 2 is a partial cross-sectional view of the interior of the internal telescoping blind hole of the present invention.

FIG. 3 is an internal cross-sectional view of the mounting end of the split external control unit of the present invention.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

FIG. 1, FIG. 2 and FIG. 3 show a magnetic control type anti-loosening bolt, which comprises a main screw 1, an assembly nut 2 screwed on the outer side of the main screw 1 and a screw head axially fixed on the top end of the main screw 1, wherein a lateral limiting groove 3 is formed on the outer side surface of the main screw 1, three inner telescopic blind holes 4 are formed on the inner side surface of the assembly nut 2, an inner limiting insert 5 is inserted in the inner telescopic blind hole 4 at an opening position, an iron inner extrusion spring 6 is detachably mounted in the inner telescopic blind hole 4 at the top end of the inner limiting insert 5, an outer hexagonal adjusting groove 7 with an opening at one side is formed on the outer side surface of the assembly nut 2, arc-shaped external control through holes 8 communicated with the inner telescopic blind holes 4 are formed on the inner side surface of the outer hexagonal adjusting groove 7 corresponding to the inner telescopic blind holes 4, an annular limiting cover 9 protruding towards the inner telescopic blind holes 4, a split type external control device is arranged in the outer hexagonal adjusting groove 7.

Example (b): the split type external control device is sleeved inside the outer hexagonal adjusting groove 7, the magnetic control adsorption ball 12 is inserted into the annular limiting cover 9 at this time, the magnetic control adsorption ball 12 is connected with the longitudinal iron assembling rod 14 at this time, the longitudinal iron assembling rod 14 controls the iron internal extrusion spring 6 to shrink, the inner side limiting insert block 5 is separated from the inner side of the lateral limiting groove 3 at this time, and the main screw rod 1 can rotate inside the assembling nut 2 at this time; and when split type external control device cover is inside outer hexagonal adjustment tank 7, magnetic control adsorption ball 12 inserts outside arc mounting groove 20, can be when not influencing iron inside extrusion spring 6 at this moment, the convenient assembly.

Furthermore, in order to conveniently control the spring to shrink magnetically, the split type external control device comprises a lateral assembly ring 10 sleeved inside the outer hexagonal adjusting groove 7, an inner side positioning blind hole 11 formed on the inner side surface of the lateral assembly ring 10, a magnetic control adsorption ball 12 installed inside the inner side positioning blind hole 11, and a reset elastic sheet 13 for controlling the magnetic control adsorption ball 12 to be installed inside the inner side positioning blind hole 11, wherein the magnetic control adsorption ball 12 is connected with the iron internal extrusion spring 6 by being inserted into the annular limiting cover 9, and further, in order to match with internal installation and magnetic adsorption, longitudinal iron assembly rods 14 are fixedly connected to two ends of the iron internal extrusion spring 6, an internal installation clamping groove 15 with a longitudinal assembly opening is formed in the inner side end of the annular limiting cover 9, and the iron internal extrusion spring 6 is inserted into the internal installation clamping groove 15 through the longitudinal iron assembly rods 14 and is fixedly connected with the annular limiting cover 9.

Further, in order to cooperate the assembly and the elasticity of magnetic separation device to reset, magnetic control adsorption ball 12 includes outside spherical hollow structure aluminum hull 16 and installs at the inside globular permanent magnet 17 of aluminum hull 16, offers the outside mounting groove 18 that is used for installing the shell fragment 13 that resets on the 16 lateral surfaces of aluminum hull, inboard location blind hole 11 medial surface on offer the inboard mounting groove 19 that is used for installing the shell fragment 13 that resets, further, in order to make things convenient for outside assembly, outside arc mounting groove 20 has been offered on the 7 lateral surfaces of outer hexagonal adjustment tank, inside flexible blind hole 4 and outside arc mounting groove 20 interval arrangement are on outer hexagonal adjustment tank 7, inside flexible blind hole 4 and outside arc mounting groove 20 are the annular array mode and set up on outer hexagonal adjustment tank 7.

Further, in order to reduce the outside space and occupy, split type external control device lateral surface and 2 lateral surfaces of assembly nut are located the coplanar, and further, for convenient side direction installation and spacing, 5 inboard ends of inboard spacing inserted blocks offer with vertical iron assembly pole 14 matched with side direction mounting groove 21, the inside width of side direction mounting groove 21 is from outside opening inwards grow gradually.

The magnetic control type anti-loosening bolt comprises a main screw rod 1, an assembly nut 2 and a screw rod head, wherein an outer hexagonal adjusting groove 7 internally provided with a split type external control device is formed in the outer side of the assembly nut 2, an inner telescopic blind hole 4 internally provided with an elastic inner side limiting insert block 5 is formed in the assembly nut 2, an inner side positioning blind hole 11 internally provided with an elastic magnetic control adsorption ball 12 is formed in the split type external control device, and the elastic inner side limiting insert block 5 is inserted into a lateral limiting groove 3 to clamp and fix the main screw rod 1 and the assembly nut 2, so that the assembly stability and the anti-loosening performance of the bolt are greatly improved; the elastic inner side limiting insert block 5 can be controlled to stretch out and draw back in the inner telescopic blind hole 4 through the split type external control device, so that the main screw rod 1 and the assembling nut 2 can be conveniently separated and disassembled; longitudinal iron assembly rods 14 are fixedly connected to two ends of the iron internal extrusion spring 6, and the longitudinal iron assembly rods 14 are detachably assembled with the inner side limiting insert block 5 and the annular limiting cover 9 respectively, so that the internal limiting mechanism is convenient to assemble and disassemble, and the later-stage use cost is reduced; the outer side surface of the outer hexagonal adjusting groove 7 is provided with inner telescopic blind holes 4 and outer arc-shaped mounting grooves 20 which are annularly arranged at intervals, and the inner parts of the lateral limiting grooves 3 on the outer side surface of the main screw rod 1 are inserted from multiple directions, so that the limiting stability and the firmness of the whole main screw rod 1 and the assembling screw cap 2 are greatly improved; the elastic extrusion anti-loosening mechanism and the magnetic separation mechanism are both arranged in a built-in mode, so that the durability and the safety of the elastic extrusion anti-loosening mechanism can be improved, meanwhile, the external space cannot be occupied, and the whole structure is more compact.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.