CN212928469U - Anti-loose nut - Google Patents

Abstract

The utility model discloses a locknut, which comprises a nut body, wherein the nut body is axially provided with a first threaded hole, one end surface is axially provided with a ring groove, the inner wall of one side of the ring groove, which is close to the first threaded hole, is axially provided with a plurality of grooves to form a plurality of intervals on the inner wall, and the inner wall of one side of the ring groove, which is far away from the first threaded hole, is provided with an internal thread; the clamp nut, clamp nut is the same with the nut body size, clamp nut is equipped with the second screw hole along the axial, the second screw hole is the same with first screw hole size, it is protruding that axial fixedly connected with and ring channel assorted annular are followed to clamp nut terminal surface, the annular is protruding to be inserted in the ring channel, be equipped with the external screw thread on the protruding outer wall of annular, work as when annular is protruding with ring channel threaded connection, the protruding inner wall of annular extrudees towards first screw hole with the inner wall that the ring channel is close to first screw hole one side.

Description

Anti-loose nut

Technical Field

The invention relates to the field of water treatment, in particular to a locknut.

Background

Biological sewage treatment, an aerobic tank is a treatment method which utilizes aerobic microorganisms (including facultative microorganisms) to carry out biological metabolism under the condition of the existence of oxygen so as to degrade organic matters and make the organic matters stable and harmless.

NH3-N (ammonia nitrogen) in water is subjected to nitration reaction to generate nitrate radical, meanwhile, organic matters in the water are oxidized and decomposed to supply energy to phosphorus-absorbing microorganisms, the microorganisms absorb phosphorus from the water, the phosphorus enters cell tissues and is enriched in the microorganisms, and the phosphorus-rich sludge is discharged from the system after precipitation and separation.

Usually, the bottom of the aerobic tank is provided with an aeration head, in order to keep the stability of the aeration head, the aeration head is generally fixed by using a locking sheet for limiting and then fixing through bolts and nuts, and because the aerobic tank has high corrosivity and because the aeration film of the aeration head is intermittently sprayed out in the air, certain shaking is easy to occur, and the locking nut is easy to fall off.

SUMMERY OF THE UTILITY MODEL

The invention aims to provide a locknut which can lock and is not easy to fall off when being fixed, and meanwhile, a nut body and a compression nut are not easy to separate, so that the problem that the locknut and the compression nut are lost and cannot be matched when being installed is avoided.

In order to achieve the purpose, the invention adopts the technical scheme that:

a locknut comprises a nut body,

the nut body is provided with a first threaded hole along the axial direction, one end face is provided with an annular groove along the axial direction, the inner wall of the annular groove, which is close to one side of the first threaded hole, is provided with a plurality of grooves along the axial direction so as to form a plurality of intervals on the inner wall, and the inner wall of the annular groove, which is far away from one side of the first threaded hole, is provided with internal threads;

the clamp nut, clamp nut is the same with the nut body size, clamp nut is equipped with the second screw hole along the axial, the second screw hole is the same with first screw hole size, it is protruding that axial fixedly connected with and ring channel assorted annular are followed to clamp nut terminal surface, the annular is protruding to be inserted in the ring channel, be equipped with the external screw thread on the protruding outer wall of annular, work as when annular is protruding with ring channel threaded connection, the protruding inner wall of annular extrudees towards first screw hole with the inner wall that the ring channel is close to first screw hole one side.

Further, the protruding cross-section of annular is "L" shape, its free end terminal surface is equipped with the external screw thread, the inner wall that the ring channel is close to first screw hole one side highly is less than the terminal surface of nut body, the terminal surface that first screw hole one side was kept away from to the ring channel is fixed with the spacing ring, the spacing ring internal diameter is greater than the protruding external diameter with the gland nut stiff end of annular, is less than the protruding diameter of free end of annular.

Furthermore, a chamfer edge is arranged on the inner wall surface of the annular bulge, which is far away from the compression nut, and the width of the annular groove is greater than the distance from the chamfer edge, which is far away from the compression nut, to the free end of the annular bulge.

Further, the groove is provided with six.

Furthermore, a chamfer is arranged on the inner wall of the annular groove on one side close to the first threaded hole.

Furthermore, the nut body and the compression nut are both made of nylon materials.

Further, the groove depth of the annular groove is the same as the height of the annular protrusion.

Further, the nut body is a regular hexagon nut.

One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: the utility model discloses simple structure utilizes nylon to make lock nut, avoids taking place to corrode and rusts and the problem that can't dismantle appears, utilizes the setting that spacing ring and annular protruding cross-section are "L" shape simultaneously, can be so that when not using, the nut body can not take place the separation with gland nut yet, avoids using the phenomenon that the appearance lacks the accessory.

Drawings

FIG. 1 is a schematic structural view of a nut body;

FIG. 2 is a schematic view of a compression nut;

fig. 3 is a schematic cross-sectional view of the locknut.

Detailed Description

As shown in FIGS. 1 to 3, a locknut includes,

the nut comprises a nut body 10, wherein a first threaded hole 101 is axially formed in the nut body 10, an annular groove 102 is axially formed in one end face of the nut body 10, a plurality of grooves 103 are axially formed in the inner wall of the annular groove 102, which is close to one side of the first threaded hole 101, so that a plurality of intervals are formed in the inner wall, and internal threads are formed in the inner wall of the annular groove 102, which is far away from the side of the first threaded hole 101;

the compression nut 20 is the same as the nut body 10 in size, the compression nut 20 is provided with a second threaded hole 201 along the axial direction, the second threaded hole 201 is the same as the first threaded hole 101 in size, one end face of the compression nut 20 is fixedly connected with an annular protrusion 202 matched with the annular groove 102 along the axial direction, the annular protrusion 202 is inserted into the annular groove 102, an external thread is arranged on the outer wall of the annular protrusion 202, and when the annular protrusion 202 is in threaded connection with the annular groove 102, the inner wall of the annular protrusion 202, close to one side of the first threaded hole 101, of the annular groove 102 is extruded towards the first threaded hole by the inner wall of the annular protrusion 202. The six grooves 103 are formed, the nut body 10 and the compression nut 20 are both made of nylon materials, and the nut body 10 is a regular hexagon nut

Specifically, the nut body 10 and the compression nut 20 are both made of nylon material and are both set to be regular hexagon nuts. The nut body 10 and the compression nut 20 are axially provided with a first threaded hole 101 and a second threaded hole 201 which are coaxial, the internal threads in the two threaded holes have the same size, the two threaded holes can be simultaneously screwed into a screw rod to be fixed, the end surface of the nut body 10 is provided with an annular groove 102, six grooves are uniformly distributed on the inner wall of the annular groove 102 close to the first threaded hole 101, the annular groove is divided into six grooves, the six grooves can incline towards the first threaded hole 101 after being extruded, the nut 20 is pressed, an annular projection 202 is integrally formed on an end surface thereof, and is insertable into the annular groove 102, when the external threads on the annular protrusion 202 are threadably engaged with the internal threads in the annular groove 102, the inner edge of the annular protrusion 202 can extrude the inner wall of the annular groove 102 close to the first threaded hole 101 side, so that the annular protrusion clamps the screw rod in the first threaded hole 101, and is not easy to slide, thereby preventing looseness.

Furthermore, in order to prevent the problem that the compression nut 20 and the nut body 10 are separated from each other and lost when in use, the section of the annular protrusion 202 is arranged to be L-shaped, the free end face of the annular protrusion is arranged to be a thread, the height of the inner wall of the annular groove close to one side of the first threaded hole 101 is lower than that of the nut body 10, the end face of the annular groove 102 far away from one side of the first threaded hole 101 is fixedly provided with a limiting ring 1021, the inner diameter of the limiting ring 1021 is larger than the outer diameter of the fixed end of the annular protrusion 202 and the compression nut 20 and smaller than the diameter of the free end of the annular protrusion 202, and thus the compression nut 20 can be limited by the inner ring 1021 to avoid loss of the.

Further, in order to make it easier for the annular protrusion 202 on the compression nut 20 to press the inner wall of the annular groove 102 on the side close to the first threaded hole 101, a chamfered edge is provided on the inner wall surface of the annular protrusion 202 away from the compression nut 20, and the width of the annular groove 102 is greater than the distance from the chamfered edge farther from the compression nut 20 to the free end of the annular protrusion 202.

Further, the inner wall of the annular groove 102 on the side close to the first threaded hole 101 is provided with a chamfer.

Further, in order to ensure that the annular protrusion 202 of the compression nut can be better matched with the annular groove 102, the depth of the annular groove 102 is the same as the height of the annular protrusion 202.

During the use, at first all cup joint nut body 10 and gland nut 20 on the screw rod, it is rotatory to use same spanner to clip, after nut body 10 locks to targetting in place, reuse spanner rotates gland nut 20 alone, make annular bulge 202, can screw in ring channel 102, be close to the inner wall of first screw hole 101 side along extrusion ring channel 102 in protruding 202 of annular, make it take place to warp and crowd tight screw rod, it is fixed to realize locking, nylon has certain shock attenuation effect simultaneously, consequently, the protruding 202 position of annular with ring channel 102 tight fit more is difficult to change, make locknut obtain better fixed.

Claims (8)

1. A locknut is characterized by comprising,

the nut comprises a nut body (10), wherein a first threaded hole (101) is axially formed in the nut body (10), an annular groove (102) is axially formed in one end face of the nut body, a plurality of grooves (103) are axially formed in the inner wall, close to one side of the first threaded hole (101), of the annular groove (102), so that a plurality of intervals are formed in the inner wall, away from the first threaded hole (101), of the annular groove (102), and internal threads are formed in the inner wall;

compression nut (20), compression nut (20) is the same with nut body (10) size, compression nut (20) are equipped with second screw hole (201) along the axial, second screw hole (201) are the same with first screw hole (101) size, a compression nut (20) terminal surface is along axial fixedly connected with ring channel (102) assorted annular protruding (202), annular protruding (202) insert in ring channel (102), be equipped with the external screw thread on annular protruding (202) outer wall, work as during annular protruding (202) and ring channel (102) threaded connection, annular protruding (202) inner wall extrudees towards first screw hole with the inner wall that ring channel (102) is close to first screw hole (101) one side.

2. The locknut as claimed in claim 1, characterized in that the cross section of the annular protrusion (202) is "L" shaped, the end face of the free end is provided with external threads, the height of the inner wall of the annular groove (102) close to the first threaded hole (101) is lower than that of the end face of the nut body (10), the end face of the annular groove (102) far away from the first threaded hole (101) is fixed with a limiting ring (1021), and the inner diameter of the limiting ring (1021) is larger than the outer diameter of the fixed end of the annular protrusion (202) and the compression nut (20) and smaller than the diameter of the free end of the annular protrusion (202).

3. The locknut according to claim 1, characterized in that the inner wall surface of the annular protrusion (202) far away from the compression nut (20) is provided with a chamfered edge, and the width of the annular groove (102) is larger than the distance from the chamfered edge far away from the compression nut (20) to the free end of the annular protrusion (202).

4. A locknut according to claim 1, characterized in that said recess (103) is provided with six.

5. The locknut of claim 1, characterized in that the inner wall of the annular groove (102) on the side close to the first threaded hole (101) is chamfered.

6. The locknut of claim 1, characterized in that the nut body (10) and the compression nut (20) are both made of nylon material.

7. The locknut of claim 1, characterized in that the annular groove (102) has the same groove depth as the annular protrusion (202) in height.

8. A locknut according to claim 1, characterized in that said nut body (10) is a regular hexagonal nut.

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