Lock nut
By directly mounting and fixing the spring body onto the nut body, the problems of high production cost and difficulty in mass production of existing anti-loosening nuts are solved, realizing low-cost and high-efficiency anti-loosening nut manufacturing.
Patent Information
- Application Number
- CN202520513124.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-03-21
AI Technical Summary
Existing locknuts are expensive to produce and difficult to mass-produce, and require complex processing and a spring cage structure with high fitting requirements.
The spring body is directly mounted on the nut body and fixed by welding or clamping to form an integrated structure, which simplifies the installation process and is suitable for automated production.
It reduces production costs, improves production efficiency, and achieves stability and shock resistance in anti-loosening nuts, making them suitable for large-scale production.
Smart Images
Figure CN223708244U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to machining parts preparation technical field especially, relates to a locknut. BACKGROUND
[0002] Locknut is a kind of mechanical connection parts, is used to be matched with screw, is used in railway, automobile, electrical, machinery, shipbuilding, construction and steel and so on, the fixed connection of each line each trade can be fastened, prevent under high-speed operation or strong vibration, loose, fall off and loss, make the equipment or part in work produce mechanical failure, occur danger.
[0003] In the prior art, in order to prevent the occurrence of loosening, high-load nut utilizes the spring characteristic of the structure integrated with nut, fundamentally solves the problems of easy loosening and easy falling off of nut, but the nut needs to be provided with a spring holder when the spring is fixed, the cooperation of the body and the spring holder is required to be high, the spring holder is usually produced by thin-walled seamless pipe with wall thickness 0.3 / 0.4, which exceeds the material limit of pipe drawing, and the cost is high, and the forming size of the holder is strictly required, and the riveting method is also strictly required due to the difference caused by material tolerance, and slight carelessness can cause spring positioning error and holder deformation interference, and the production method is complicated, and batch production is difficult to realize.
[0004] In the disclosed patent 2021214010998, a locknut structure is also provided, which includes a nut body and a spring body mounted on the nut body, one end of the nut body is provided with a thread, the other end is provided with a sink drill hole, the inner wall of the sink drill hole is smooth, the spring body is installed in the sink drill hole, and the outer circle of the spring body is fixedly connected with the end face of the nut body. In the structure, the nut body needs to be processed with a sink drill hole to install the spring, so that the production cost is increased and the efficiency is reduced. UTILITY MODEL CONTENTS
[0005] In view of the above defects or deficiencies, the purpose of the utility model is to provide a locknut.
[0006] To achieve the above purpose, the technical scheme of the utility model is as follows:
[0007] A locknut, comprising: a nut body, a spring body is mounted at one end of the nut body, and the spring body is fixedly installed on the end face of the nut body.
[0008] The diameter of the spring body is equal to the inner hole diameter of the nut body.
[0009] One end of the spring body is fixedly arranged on the end face of the nut body after being bent and extended.
[0010] The other end of the spring body is bent and extended out of the nut body and is welded to the end face of the nut body.
[0011] The other end of the spring body is bent and extended out of the nut body and is welded to the end face of the nut body.
[0012] The other end of the spring body is bent and extended out of the nut body and is welded to the end face of the nut body.
[0013] The pressing piece is in an arch structure.
[0014] Compared with the prior art, the utility model has the beneficial effects that:
[0015] The utility model provides a locknut, through install matched spring body directly on the nut, can have the clamping effect of spring when installing with screw rod, and integral installation with the nut, make use of the spring characteristic of integral structure with the nut, prevent the loosening and falling of the nut, the utility model directly installs the spring body on the nut top end, directly uses when assembling, need not additional fixed structure, make the installation process simple, do not need high cooperation requirement, the main part is through the sinking drill hole and spring assembly welding and is composed, is suitable for automation, large -scale production, fixed center does not have deformation, quality is stable, improve the anti -shock limit of spring locknut, in addition, the nut body in the utility model discloses is the ordinary standard nut, need not additional processing, greatly reduce production cost, improve production efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the locknut structure schematic diagram of the utility model device Figure 1 ;
[0017] Figure 2 It is the locknut structure schematic diagram of the utility model device Figure 2 ;
[0018] Figure 3 It is the locknut structure schematic diagram of the utility model device Figure 3 ;
[0019] Figure 4 It is the locknut structure schematic diagram of the utility model device Figure 4 .
[0020] In the drawing, 1 - nut body, 2 - spring body, 21 - dismounting handle, 3 - pressing piece. DETAILED DESCRIPTION
[0021] The utility model will make a detailed description in connection with the drawings, obviously, the described embodiment is only a part of the utility model embodiment, is not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the protection scope of the utility model.
[0022] As Figure 1 The utility model provides a locknut, its characterized in being including: nut body 1, spring body 2 is installed to one end of nut body 1, spring body 2 is fixedly installed on the end face of nut body 1.
[0023] In the utility model, in order to carry out the assembly use process again, spring body 2 can clamp the screw rod, the diameter of spring body 2 is equal to the inner hole diameter of nut body 1. However, in order to fix spring body 2 on the end face of nut body 1, the movable end of spring needs to be fixed with the end face of nut body 1, therefore, the utility model gives two kinds of fixing modes.
[0024] It needs to be explained that in the utility model, the ordinary skill in the art utilizes clamp to fix the outer end of spring body 2 with the end face of nut body 1, and the utility model is explained by taking this as an example, but the specific fixing mode is not limited to this, and other fixed connection modes also belong to the protection scope of the utility model.
[0025] Specifically, the outer end of spring body 2 and the end face have two kinds of fixed connection modes in the utility model:
[0026] The first mode is as shown in Figure 1 、 2 One end of spring body 2 is fixedly arranged on the end face of nut body 1 after stretching out and bending, and the other end of spring body 2 is arranged outside nut body 1 after stretching out and bending to form a dismounting handle 21; specifically, one end of spring body 2 is welded on the end face of nut body 1 after stretching out and bending. The fixed method of this mode makes the spring structure simple, does not need additional processing, and only needs to be welded or fused after positioning the spring and the end face, so that the operation process is simple and convenient, and the working efficiency is high.
[0027] The second mode is as shown in Figure 3 、 4 One end of spring body 2 is fixed on the end face of nut body 1 through pressing piece 3 after stretching out and bending, and the other end of spring body 2 is arranged outside nut body 1 after stretching out and bending to form a dismounting handle 21; for example, in the utility model, pressing piece 3 is in the shape of an arch, can be wrapped after welding and fixed, and this mode is more firm and has a long service life.
[0028] It needs to be explained that the spring body is directly fixed and installed on the end face of the nut body 1, so that the nut body does not need to be additionally processed, and standard inner hexagonal nuts, square nuts or special-shaped nuts are used, so that the production cost is greatly reduced.
[0029] The nut body 1 in the utility model is adopted by using a general tool, can be repeatedly used, replaces the existing product, and reduces the maintenance cost. The installation and disassembly of the lock nut do not need special skills, and a general tool can be used, so that the dismounting handle 21 of the spring body 2 is connected with the inner ring of the spring body 2 and is led out to the outside of the nut body 1, forms the pushable dismounting handle 21, when dismounting is needed, the dismounting handle 21 is pushed, so that the inner ring of the spring body 2 is directly increased, and is separated from the thread on the screw rod, the nut body 1 is conveniently dismounted.
[0030] The working process of the utility model is as follows:
[0031] Installation: the nut body 1 and the spring body 2 are fixed and installed, the lock nut is obtained, when the lock nut and the screw rod are installed, normal tightening installation is carried out, the thread 11 on the nut body 1 is matched with the thread on the screw rod, and the spring body 2 is further clamped and fixed with the thread on the screw rod, so that the loosening and falling off of the nut are prevented.
[0032] Dismounting: the dismounting handle 21 is pushed, so that the inner ring of the spring body connected with the dismounting handle 21 is expanded, the spring body is separated from the thread on the screw rod, clamping is released, and then the nut can be normally dismounted.
[0033] The lock nut in the utility model has low cost and strong market competitiveness, can use standard nut parts, does not need additional nut processing, is suitable for automatic and large-scale production, has no deformation during centering, has stable quality, is firm due to the adoption of the welding process compared with the thin pipe clamping spring structure, so that the anti-shock and anti-looseness limit of the spring lock nut is improved, the production cost is reduced, and mass production is facilitated.
[0034] For those skilled in the art, it is obvious that the above specific examples are only preferred schemes of the utility model, so that the improvement and change of some parts of the utility model by those skilled in the art still embodies the principle of the utility model and realizes the purpose of the utility model, and belongs to the protection range of the utility model.
Claims
1. A lock nut, characterized in that Include: The nut body (1), one end of the nut body (1) is mounted with spring body (2), the spring body (2) is fixedly installed on the end face of the nut body (1);The diameter of the spring body (2) is equal to the inner hole diameter of the nut body (1);One end of the spring body (2) is fixedly arranged on the end face of the nut body (1) after stretching and bending.
2. The lock nut of claim 1, wherein The other end of the spring body (2) is arranged outside the nut body (1) after stretching and bending, forming a dismounting handle (21).
3. The lock nut of claim 1, wherein One end of the spring body (2) is welded on the end face of the nut body (1) after stretching and bending.
4. The lock nut of claim 1, wherein One end of the spring body (2) is fixed on the end face of the nut body (1) by the pressing piece (3) after stretching and bending.
5. The lock nut of claim 4, wherein The pressing piece (3) is an arcuate structure.