CN219529537U

CN219529537U - Screw with anti-loosening structure

Info

Publication number: CN219529537U
Application number: CN202320244718.XU
Authority: CN
Inventors: 蒋洪哲
Original assignee: Hebei Nieshi Metal Products Co ltd
Current assignee: Hebei Nieshi Metal Products Co ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-08-15
Anticipated expiration: 2033-02-17

Abstract

The utility model relates to the technical field of screws, in particular to a screw with a locking structure, which comprises a screw, wherein the screw is in threaded connection with a nut component, a backing plate is arranged on the screw positioned on the lower side of the nut component in a sliding manner, and the backing plate comprises the following components: the backing plate is slid on the screw to squeeze the upper nut component, so that the nut component is tightly connected with a mechanical part to be fastened, and is inserted into the lower side of the nut component while the backing plate slides. According to the utility model, the anti-skid rod is extruded by the base plate, so that the protection rod slides out of the first nut to penetrate through the fastening part, thereby preventing the first nut from loosening during mechanical vibration, and meanwhile, the base plate semi-wraps the first nut, so that the part, connected with the screw, of the first nut is prevented from being corroded, the operation is simple, the realization of mechanical assembly by workers can be saved, and the assembly efficiency is improved.

Description

Screw with anti-loosening structure

Technical Field

The utility model relates to the technical field of screws, in particular to a screw with a locking structure.

Background

The screw is a tool for progressively fastening the parts of the object by using the physical and mathematical principles of the circular rotation and friction force of the inclined plane of the object, and the screw is usually used for connecting two parts to be connected when the mechanical equipment is assembled.

For screws, there are many prior art, such as:

chinese patent publication No. CN214196919U discloses a screw with locking structure, including the device main part, the device main part includes the screw rod, the outside screw thread of screw rod is installed the nut, the inside of screw rod is provided with fastening mechanism, fastening mechanism includes the lead screw, the inside of screw rod is through bearing movable mounting lead screw, the one end fixed mounting of lead screw has the turn round, the both sides of turning round all fixed mounting have the bracing piece, the one end screw thread of lead screw installs the movable block, the nut both sides are provided with and separate solid mechanism, it includes the second spout to separate solid mechanism the inside at nut both ends has all been seted up the second spout.

Therefore, the existing screw utilizes the rotary head to enable the moving block to move to the position where the nut stays, so that the situation that the nut falls off when the device is subjected to external force is reduced, the operation process of the nut falling-off prevention mode is complex, workers need to spend more time during installation, the efficiency of mechanical equipment assembly is easy to lower, and the existing nut falling-off prevention screw cannot prevent the nut from falling off when the vibration amplitude of the mechanical equipment is large.

In view of this, the present utility model provides a screw having a locking structure.

Disclosure of Invention

The utility model aims to solve the defects and provide a screw capable of preventing the nut from loosening when the screw is matched with the nut.

The base plate is used to slide on the screw, the anti-skid rod in the first nut is pushed out, the anti-skid rod penetrates through the fastening part, the purpose of preventing the first nut from loosening is achieved, meanwhile, the base plate is matched with a notch of the first nut in a plugging manner in a sliding process, the first nut is abutted against the base plate, the first nut and the screw are further tightly connected, the first nut is prevented from loosening, the base plate is used for semi-wrapping the first nut, the time of corrosion of the first nut is prolonged, and the first nut is prevented from being difficult to disassemble.

The utility model provides a screw with an anti-loosening structure, which comprises a screw, wherein the screw is in threaded connection with a nut component, a backing plate is arranged on the screw positioned on the lower side of the nut component in a sliding way, and the backing plate comprises: the backing plate is used for extruding the upper nut component when sliding on the screw, so that the nut component is tightly connected with a mechanical part to be fastened, and is inserted into the lower side of the nut component while sliding.

As a further improvement of the technical scheme, the nut assembly comprises a first nut connected with the screw thread, a notch is symmetrically formed in the lower side of the first nut, and a bulge which is inserted into the notch is arranged at the corresponding position of the backing plate and the notch.

As a further improvement of the technical scheme, the first nut is provided with sliding holes in annular distribution, an anti-slip rod is slidably arranged in the sliding holes, and the anti-slip rod is used for preventing the first nut from loosening.

As the further improvement of this technical scheme, the backing plate slides in the spout of seting up in the screw both sides through the slider that inside set up, the recess that corresponds with the slide bar is offered to the backing plate bottom annular, works as the backing plate is pegged graft the cooperation with the recess with the lower extreme of slide bar when upwards promoting the slide bar, the frame of backing plate upside carries out half parcel with first nut.

As a further improvement of the technical scheme, a second elastic piece is arranged in the groove, the upper end of the second elastic piece is connected with a gasket, and the gasket is attached to the anti-skid rod when the anti-skid rod is inserted into the groove.

As a further improvement of the technical scheme, a first elastic piece is arranged on the screw positioned on the upper side of the first nut, the upper end of the first elastic piece is connected with the upper end of the screw, and a second nut is connected with the screw positioned on the lower side of the backing plate in a threaded manner.

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

1. in this screw with locking structure, through the backing plate that sets up to the extrusion of slide bar, make the first nut of protection pole roll-off run through the fastening position to prevent that first nut from becoming flexible when mechanical vibration, the backing plate carries out half parcel to first nut simultaneously, prevents that the corrosion from appearing in the position that first nut and screw are connected, easy operation can save the realization of workman to mechanical assembly, improves packaging efficiency.

2. In this screw with locking structure, through the grafting cooperation of the inside lug of backing plate and first nut breach, reduce the space between first nut and the screw, increase the compactness between first nut and the screw, combine the second nut to support tightly of backing plate, further prevent that first nut from appearing not hard up condition.

Drawings

The utility model is described in more detail below, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a cross-sectional view of the overall structure of the present utility model;

FIG. 3 is a schematic view of the overall structure of the present utility model;

fig. 4 is a cross-sectional view of the pad structure of the present utility model.

The meaning of each reference sign in the figure is:

1. a screw; 11. a chute; 12. a first elastic member; 2. a nut assembly; 21. a first nut; 22. an anti-skid bar; 23. a notch; 3. a backing plate; 31. a groove; 32. a second elastic member; 33. a gasket; 4. and a second nut.

Detailed Description

The existing screw utilizes to rotate the swivel, makes the movable block remove the position that the nut stopped to reduced the device and received the condition that the nut drops under the action of external force, this kind of mode operation process that prevents nut drops is comparatively loaded down with trivial details, and the workman needs more time of spending when the installation, thereby leads to the efficiency to mechanical equipment to become low easily, and secondly the screw that current nut was dropped can not avoid the nut to drop when mechanical equipment vibration amplitude is great.

Example 1

As shown in fig. 1 to 4, the device comprises a screw 1, the screw 1 is in threaded connection with a nut component 2, a backing plate 3 is slidably arranged on the screw 1 positioned on the lower side of the nut component 2, wherein: the upper side nut component 2 is extruded when the backing plate 3 slides on the screw 1, so that the nut component 2 is tightly connected with a mechanical part to be fastened, and the backing plate 3 slides and is inserted into the lower side of the nut component 2

Firstly, the concrete structure of the nut component 2 is disclosed, the nut component 2 comprises a first nut 21 in threaded connection with a screw 1, a notch 23 is symmetrically formed in the lower side of the first nut 21, a bulge which is inserted into the notch 23 is arranged at the corresponding position of the base plate 3 and the notch 23, when the screw 1 passes through two parts which need to be connected, the first nut 21 is in threaded connection with the screw 1, after the first nut 21 is screwed down, the screw 1 is fixed, the base plate 3 is used for sliding on the screw 1, the bulge part of the base plate 3 is inserted into the notch 23, the first nut 21 is further abutted to be tight, the situation that the first nut 21 falls off during mechanical vibration is avoided, the operation is simple, and the installation time is short.

Example 2

When the backing plate 3 is inserted into the notch 23, the first nut 21 can be prevented from loosening during mechanical vibration, but if the amplitude of the mechanical vibration is large or the vibration is long-term, the first nut 21 may also loosen, so the following improvement is made:

make backing plate 3 slide in spout 11 that screw 1 both sides were seted up through the slider that inside set up, secondly set up the slide hole that annular was distributed on first nut 21, the downthehole slip of slide is provided with slide bar 22, slide bar 22 is used for preventing first nut 21 not hard up, when backing plate 3 slides on screw 1, backing plate 3 promotes slide bar 22 out the slide hole, beats backing plate 3 through the hammer lamp utensil, makes slide bar 22 run through the position that needs to fasten, further prevents first nut 21 not hard up.

Wherein, in order to improve the stability when slide bar 22 is pushed, recess 31 that corresponds with slide bar 22 has been seted up to backing plate 3 bottom annular, and the lower extreme and the recess 31 grafting cooperation of slide bar 22 when backing plate 3 will slide bar 22 upwards promote, and then make slide bar 22 remain stable, make the frame of backing plate 3 upside carry out half parcel with first nut 21, and then lengthen the time that first nut 21 was corroded, avoid first nut 21 to be difficult to dismantle.

The second elastic piece 32 is arranged in the groove 31, the upper end of the second elastic piece 32 is connected with the gasket 33, the gasket 33 is attached to the anti-skid rod 22 when the anti-skid rod 22 is inserted into the groove 31, after the anti-skid rod 22 enters the groove 31, the anti-skid rod 22 is enabled to inwards squeeze the second elastic piece 32 through continuous sliding of the base plate 3, the elastic effect of the second elastic piece 32 protects the anti-skid rod 22, and when mechanical vibration enables the anti-skid rod 22 to vibrate together, the second elastic piece 32 plays a role in buffering the anti-skid rod 22.

Secondly, be provided with first elastic component 12 on the screw 1 that is located the upside of first nut 21, the upper end of first elastic component 12 is connected with the upper end of screw 1, and first elastic component 12 is located the upside of required fastening position, and the vibration that also produces to machinery is cushioned to prevent first nut 21 loosening, secondly screw 1 that is located the downside of backing plate 3 is threaded connection has second nut 4 to fix backing plate 3 between first nut 21 and second nut 4, improves backing plate 3's stability.

To sum up, the working principle of the scheme is as follows: when the screw 1 passes through two parts to be connected, the first nut 21 is in threaded connection with the screw 1, when the screw 1 is fixed after the first nut 21 is screwed, the first elastic piece 12 is positioned on the upper side of the fastened part, the backing plate 3 is used for sliding on the screw 1, the protruding part of the backing plate 3 is inserted into the notch 23, the first nut 21 is abutted against, meanwhile, the backing plate 3 pushes the slide-proof rod 22 out, the backing plate 3 is knocked by a hammer or other appliance, the slide-proof rod 22 passes through the parts to be fastened, the stability of the first nut 21 is further enhanced, and finally the second nut 4 is in threaded connection with the screw 1, so that the backing plate 3 is fixed.

The first elastic member 12 and the second elastic member 32 may preferably be metal springs or the like, which are suitable for the prior art.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Screw with locking structure that moves, including screw (1), its characterized in that: screw (1) and nut subassembly (2) threaded connection are located slide on screw (1) of nut subassembly (2) downside is provided with backing plate (3), wherein: the backing plate (3) extrudes the upper nut component (2) when sliding on the screw (1), so that the nut component (2) is tightly connected with a mechanical part to be fastened, and is inserted into the lower side of the nut component (2) while the backing plate (3) slides.

2. The screw with anti-loosening structure as claimed in claim 1, wherein: the nut assembly (2) comprises a first nut (21) in threaded connection with the screw (1), a notch (23) is symmetrically formed in the lower side of the first nut (21), and a bulge which is inserted into the notch (23) is arranged at the corresponding position of the backing plate (3) and the notch (23).

3. The screw with anti-loosening structure as claimed in claim 2, wherein: the first nut (21) is provided with sliding holes in annular distribution, an anti-slip rod (22) is slidably arranged in the sliding holes, and the anti-slip rod (22) is used for preventing the first nut (21) from loosening.

4. A screw with anti-loosening structure as claimed in claim 3, wherein: the base plate (3) slides in the sliding grooves (11) formed in two sides of the screw (1) through the sliding blocks arranged in the base plate, grooves (31) corresponding to the anti-slip rods (22) are formed in the bottom of the base plate (3) in an annular mode, when the base plate (3) pushes the anti-slip rods (22) upwards, the lower ends of the anti-slip rods (22) are in plug-in fit with the grooves (31), and the frame on the upper side of the base plate (3) is used for semi-wrapping the first nuts (21).

5. The screw with anti-loosening structure as claimed in claim 4, wherein: the anti-skid device is characterized in that a second elastic piece (32) is arranged in the groove (31), the upper end of the second elastic piece (32) is connected with a gasket (33), and the gasket (33) is attached to the anti-skid rod (22) when the anti-skid rod (22) is inserted into the groove (31).

6. The screw with anti-loosening structure as claimed in claim 5, wherein: the screw (1) located on the upper side of the first nut (21) is provided with a first elastic piece (12), the upper end of the first elastic piece (12) is connected with the upper end of the screw (1), and the screw (1) located on the lower side of the backing plate (3) is connected with a second nut (4) in a threaded mode.