CN221074951U - Double-nut lock screw - Google Patents

Abstract

The utility model relates to the field of lockscrews and discloses a double-nut lockscrew which comprises a nut, wherein the top of the nut is fixedly connected with a screw rod, the periphery of the screw rod is sleeved with a second gasket, the periphery of the screw rod is in threaded connection with a first nut, the periphery of the screw rod is in threaded connection with a second nut, one sides of the first nut and the second nut are fixedly connected with a first friction block, the bottom of the first nut is provided with a clamping assembly, the clamping assembly comprises a fixed block, the fixed block is fixedly connected to the bottom of the first nut, and the inside of the fixed block is provided with a groove. According to the utility model, the second gasket is extruded and fixed through the mutual matching of the first nut, the second nut, the gasket and the like, and the second gasket is extruded and deformed for a while through the friction blocks on one side of the second nut and the first nut when the second gasket is extruded, so that the second nut can be rotated to fix an object to be fixed more conveniently and more firmly.

Description

Double-nut lock screw

Technical Field

The utility model relates to the field of lockscrews, in particular to a double-nut lockscrew.

Background

The double-nut locking screw is a specially designed screw connection and aims to prevent the screw from loosening automatically under the condition of vibration or stress. It is typically composed of two nuts, one referred to as the main nut and the other as the lock nut, which work together to provide a more reliable screw connection.

In the prior art, most of the prior art directly adopts bolts and nuts to directly form fasteners, and the prior art is generally used for various occasions such as science and technology, production, processing, experiments and the like, mechanical equipment and instruments, and the common nuts are screw buckles of the nuts through pretightening force, and friction force is generated between the common nuts and the screw buckles of the screw rods so as to achieve the effect of fastening, but when vibration occurs or the service time is long, the nuts are loosened, so that the fastened pieces cannot be fastened, and therefore, the double-nut anti-loose screw is provided to solve the problems.

Disclosure of utility model

In order to overcome the defects, the utility model provides a double-nut lockscrew, which aims to solve the problem that in the prior art, when vibration occurs or the service time is long, the nut is loosened, so that the fastened piece cannot be fastened.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a double-nut lock screw, includes the nut, the top fixedly connected with screw rod of nut, the periphery cover of screw rod is equipped with the gasket two, the periphery threaded connection of screw rod has the nut one, the periphery threaded connection of screw rod has the nut two, one side of nut one and nut two all fixedly connected with friction block one, the bottom of nut one is equipped with joint subassembly.

As a further description of the above technical solution:

The clamping assembly comprises a fixed block, the fixed block is fixedly connected to the bottom of the first nut, a groove is formed in the fixed block, a first gasket is sleeved on the periphery of the screw rod, a clamping block is fixedly connected to the top of the first gasket, and the clamping block and the groove are clamped with each other.

As a further description of the above technical solution:

the inside of screw rod has seted up the screw thread groove, the inside threaded connection of screw thread groove has the threaded rod, the one end fixedly connected with fixing base of threaded rod.

As a further description of the above technical solution:

The top of the nut is fixedly connected with a friction block II, and the friction block II is contacted with the gasket I.

As a further description of the above technical solution:

the second nut and the first nut are both in threaded connection with the periphery of the screw rod.

As a further description of the above technical solution:

the second nut and the first nut are the same in size and the same in material.

As a further description of the above technical solution:

The number of the grooves and the clamping blocks can be two, four or eight.

As a further description of the above technical solution:

the number of the clamping blocks and the grooves can be three, five or nine.

The utility model has the following beneficial effects:

1. According to the utility model, the second gasket is extruded and fixed through the mutual matching of the first nut, the second nut, the gasket and the like, and the second gasket is extruded and deformed for a while through the friction blocks on one side of the second nut and the first nut when the second gasket is extruded, so that the second nut can be rotated to fix an object to be fixed more conveniently and more firmly.

2. According to the utility model, the fixing seat is rotated to drive the threaded rod to rotate, and the threaded rod is connected to the inside of the threaded groove in a threaded manner, so that the nut II and the nut I can be further fixed, and the nut II and the nut I are prevented from falling off.

Drawings

Fig. 1 is a schematic perspective view of a double-nut lockscrew according to the present utility model;

Fig. 2 is a schematic structural view of a second gasket of a double-nut lockscrew according to the present utility model;

fig. 3 is a schematic structural view of a second nut of the double-nut lockscrew according to the present utility model;

Fig. 4 is a schematic structural view of a washer-spacer of a double-nut lockscrew according to the present utility model.

Legend description:

1. A screw cap; 2. a screw; 3. a first gasket; 4. a first nut; 5. a second nut; 6. a second gasket; 7. a friction block I; 8. a fixing seat; 9. a fixed block; 10. a threaded rod; 11. a thread groove; 12. a groove; 13. a clamping block; 14. and a friction block II.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, one embodiment provided by the present utility model is: the utility model provides a double nut lockscrew, including nut 1, the top fixedly connected with screw rod 2 of nut 1, the periphery cover of screw rod 2 is equipped with gasket two 6, gasket two 6 can carry out the fixed more firm of threaded connection when fixed at nut one 4 and nut two 5, the periphery threaded connection of screw rod 2 has nut one 4, the periphery threaded connection of screw rod 2 has nut two 5, one side of nut one 4 and nut two 5 is all fixedly connected with friction block one 7, friction block one 7 can cause the extrusion deformation to gasket two 6 when fixed, thereby increased frictional force, prevent nut two 5 because vibrations lead to becoming flexible, the bottom of nut one 4 is equipped with joint subassembly, joint subassembly includes fixed block 9, fixed block 9 fixed connection is in the bottom of nut one 4, recess 12 has been seted up to the inside of fixed block 9, the periphery cover of screw rod 2 is equipped with gasket one 3, the fixed firm fixed by the extrusion thing is prevented to the extrusion thing to slide by the fixed of the fixed friction force that can carry out to the extrusion thing, the top fixedly connected with fixture block 13 of gasket one 3, fixture block 13 and recess 12 joint each other can prevent to carry out the gasket one 3 and lead to the fact the loosening to the fixed article after the gasket 3 is fixed.

Referring to fig. 3 and 4, the screw thread groove 11 has been seted up to the inside of screw rod 2, the screw thread groove 11 makes things convenient for threaded rod 10 to rotate and fixes fixing base 8 in the one end of screw rod 2, prevent that nut two 5 from dismantling or moving the time out, the inside threaded connection of screw thread groove 11 has threaded rod 10, the one end fixedly connected with fixing base 8 of threaded rod 10, the top fixedly connected with friction block two 14 of nut 1, friction block two 14 and gasket one 3 contact, can increase the frictional force to the object, fix the object more conveniently, nut two 5 and nut one 4 equal threaded connection are in the periphery of screw rod 2, nut two 5 and nut one 4 the same size, the material is the same, nut two 5 and nut one 4 are stainless steel, prevent to use for a long time and rust and cause not hard up, the quantity of recess 12 and fixture block 13 can be two, four or eight, the quantity of fixture block 13 and recess 12 can be three, five or nine, fixture block 13 and recess 12 can be adjusted according to required quantity, the convenience is fixed.

Working principle: when the fixed seat 8 is required to be fastened by the fastening piece, the threaded rod 10 is driven to rotate when the fixed seat 8 is rotated, so that the threaded rod 10 is separated from the threaded groove 11, the nut two 5 is rotated, the nut two 5 is separated from the threaded rod 2, the gasket two 6 is taken out, the nut one 4 is rotated, the nut one 4 is separated from the threaded rod 2, the fixed block 9 is driven to rotate when the nut one 4 is rotated, and the gasket one 3 is driven to rotate and separate when the fixed block 9 is rotated.

When the screw rod 2 is installed, an object to be fixed is sleeved on the periphery of the screw rod 2, the first gasket 3 is placed, the first rotating nut 4 drives the fixing block 9 to rotate, the object to be fixed is fastened by rotating the periphery of the screw rod 2, the second gasket 6 is placed after fastening, the second rotating nut 5 is connected to the periphery of the screw rod 2 in a rotating mode, the second gasket 6 is extruded and fixed, the object to be fixed is further fastened better, and finally the fixing seat 8 drives the threaded rod 10 to rotate and be connected to the inside of the threaded groove 11 to be fixed.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (8)

1. Double-nut lockscrew, including nut (1), its characterized in that: the top fixedly connected with screw (2) of nut (1), the periphery cover of screw (2) is equipped with gasket two (6), the periphery threaded connection of screw (2) has nut one (4), the periphery threaded connection of screw (2) has nut two (5), one side of nut one (4) and nut two (5) is all fixedly connected with friction block one (7), the bottom of nut one (4) is equipped with joint subassembly.

2. A double-nut lockscrew as in claim 1 wherein: the clamping assembly comprises a fixed block (9), the fixed block (9) is fixedly connected to the bottom of the first nut (4), a groove (12) is formed in the fixed block (9), a first gasket (3) is sleeved on the periphery of the screw (2), a clamping block (13) is fixedly connected to the top of the first gasket (3), and the clamping block (13) and the groove (12) are clamped with each other.

3. A double-nut lockscrew as in claim 1 wherein: the novel screw is characterized in that a thread groove (11) is formed in the screw (2), a threaded rod (10) is connected with the thread groove (11) in a threaded mode, and a fixing seat (8) is fixedly connected to one end of the threaded rod (10).

4. A double-nut lockscrew as in claim 1 wherein: the top of the nut (1) is fixedly connected with a friction block II (14), and the friction block II (14) is contacted with the gasket I (3).

5. A double-nut lockscrew as in claim 1 wherein: the second nut (5) and the first nut (4) are both in threaded connection with the periphery of the screw rod (2).

6. A double-nut lockscrew as in claim 1 wherein: the second nut (5) and the first nut (4) are the same in size and the same in material.

7. A double-nut lockscrew as in claim 2 wherein: the number of the grooves (12) and the clamping blocks (13) can be two, four or eight.

8. A double-nut lockscrew as in claim 2 wherein: the number of the clamping blocks (13) and the grooves (12) can be three, five or nine.