CN219570563U

CN219570563U - Firm trapezoidal nut of high strength

Info

Publication number: CN219570563U
Application number: CN202320503308.2U
Authority: CN
Inventors: 魏修利; 王志强; 贾双; 张嫚
Original assignee: Qufu Huazhu Machinery Co ltd
Current assignee: Qufu Huazhu Machinery Co ltd
Priority date: 2023-03-16
Filing date: 2023-03-16
Publication date: 2023-08-22
Anticipated expiration: 2033-03-16

Abstract

The utility model discloses a high-strength firm trapezoid nut, which relates to the technical field of nuts and comprises a spiral ring, wherein trapezoid threads are arranged on the inner wall of the spiral ring, a protective shell is fixedly arranged on the surface of the spiral ring, the protective shell is made of polyether-ether-ketone materials, a locking component is arranged at the bottom end of the protective shell, the locking component comprises a first auxiliary ring and a reinforcing component, and the first auxiliary ring is fixedly arranged at the bottom end of the protective shell; the beneficial effects of the utility model are as follows: the fixed surface of spiral ring is equipped with the protective housing, and the protective housing adopts polyether-ether-ketone material to make, and polyether-ether-ketone has high temperature resistant, acid and alkali corrosion resistance and good mechanical strength, can strengthen the corrosion resistance of spiral ring, and the screw thread extrusion nylon piece of screw thread makes the nylon piece form the spiral, and the nylon piece passes through spiral and closely laminates with the bolt, increases frictional resistance, prevents that whole trapezoidal nut from becoming flexible in continuous vibration, and is more firm.

Description

Firm trapezoidal nut of high strength

Technical Field

The utility model relates to a trapezoidal nut, in particular to a high-strength firm trapezoidal nut, and belongs to the technical field of nuts.

Background

The nut is a part for tightly connecting mechanical equipment, and the nut and the bolt with the same specification can be connected together through the inner threads, and the nut is mainly used for locking the through-wire outer joint or other pipe fittings. The trapezoidal nut adopts trapezoidal threads, and has the advantages of high tooth root strength and good centering.

The utility model discloses a "left-handed trapezoidal nut" that "CN201520638452.2" was disclosed, its "including nut body, screw hole and interior tooth, interior tooth is located between nut body and the screw hole, nut body both sides terminal surface outer edge is equipped with the chamfer, interior tooth is revolved to for the left-handed, is equipped with arc tooth face, tooth top surface and tooth bottom surface on the interior tooth, and tooth top surface and tooth bottom surface all are located between the arc tooth face, arc tooth face circular arc radius is 3.2mm. According to the utility model, the inner teeth are arranged between the nut body and the threaded holes, the outer edges of the end surfaces at two sides of the nut body are provided with chamfers, the rotation direction of the inner teeth is left-handed, the inner teeth are provided with arc tooth surfaces, tooth top surfaces and tooth bottom surfaces, the tooth top surfaces and the tooth bottom surfaces are positioned between the arc tooth surfaces, so that the left-handed trapezoidal nut and the left-handed trapezoidal bolt are well matched, the bad friction between the left-handed trapezoidal nut and the left-handed trapezoidal bolt is reduced, the service life of equipment is prolonged, and the semi-floating trapezoidal nut structure convenient to install is found through further search, which is disclosed by the application number of CN202021846132.3 and comprises an inner square pipe, a steel pipe is fixedly arranged in the middle of the left side of the inner square pipe, a bearing plate is symmetrically welded on the inner wall of the middle of the right side of the inner square pipe, the inner side of the bearing plate is attached to the outer side of the semi-floating trapezoidal nut, the outer end of the semi-floating trapezoidal nut is connected with a protection top plate through installation, and the inner rods are fixedly connected with the inner rods at the inner sides of the inner ends of the protection top plate, and the inner rods are all installed with the outer rods. According to the utility model, the inner square pipe, the steel pipe, the screw rod, the semi-floating trapezoidal nut and the bearing plate are arranged, the semi-floating trapezoidal nut is arranged on the screw rod and then is placed into a hole formed in the bearing plate welded on the inner square pipe, when the steel pipe welded on the inner square pipe bears axial force, the semi-floating trapezoidal nut can rotate and swing, meanwhile, the screw rod nut can be ensured to be positioned at the central position of the inner square pipe when rotating, and the strength performance of the inner square pipe is better ensured, but the trapezoidal nut also has the following defects:

the existing trapezoidal nut is not acid and alkali corrosion resistant, and is easy to loosen in continuous vibration.

Disclosure of Invention

The utility model aims to provide a high-strength firm trapezoidal nut so as to solve the problems that the prior trapezoidal nut proposed in the background art is not acid and alkali corrosion resistant and is easy to loosen in continuous vibration.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a firm trapezoidal nut of high strength, includes the spiro, the inner wall of spiro is provided with trapezoidal screw thread, the fixed surface of spiro is equipped with the protective housing, the protective housing adopts polyether-ether-ketone material to make, the bottom of protective housing is equipped with locking subassembly, locking subassembly includes first supplementary ring and reinforcement subassembly, first supplementary ring is fixed to be set up in the bottom of protective housing, the inner wall of first supplementary ring is fixed to be equipped with a plurality of nylon piece, a plurality of nylon piece is annular evenly distributed, a plurality of nylon piece's surface all is provided with the inclined plane.

Preferably, the reinforcement assembly comprises a second auxiliary ring, the second auxiliary ring slides to set up the bottom of first auxiliary ring, the inner wall of second auxiliary ring is provided with trapezoidal screw thread, the circular platform groove has been seted up on the top of second auxiliary ring, the inner wall sliding connection in circular platform groove has a plurality of spring leaf, a plurality of the one side of spring leaf is all fixed and is equipped with the rubber piece, a plurality of the opposite side of spring leaf all with the inner wall fixed connection of first auxiliary ring, a plurality of the spring leaf is annular evenly distributed.

Preferably, the surface fixing of the second auxiliary ring is provided with an anti-skid sleeve, the top end of the second auxiliary ring is provided with a limit groove, and the bottom end of the second auxiliary ring is provided with anti-skid patterns.

Preferably, the surfaces of the spring pieces are fixedly provided with guide blocks, and the surfaces of the guide blocks are slidably connected with the inner wall of the circular truncated cone groove.

Preferably, the inner diameter of the first auxiliary ring is larger than the inner diameter of the spiral ring, and the outer diameter of the first auxiliary ring is smaller than the outer diameter of the second auxiliary ring.

Preferably, the surface fixing of the first auxiliary ring is provided with a stabilizing cylinder, and the surface of the stabilizing cylinder is in sliding connection with the surface of the limiting groove.

Preferably, the cross section of the spiral ring is in a regular hexagon shape, and the longitudinal section of the spiral ring is in a rectangle shape.

Compared with the related art, the high-strength firm trapezoidal nut provided by the utility model has the following beneficial effects:

1. the surface of the spiral ring is fixedly provided with the protective shell, the protective shell is made of polyether-ether-ketone material, the polyether-ether-ketone has high temperature resistance, acid and alkali corrosion resistance and good mechanical strength, the corrosion resistance of the spiral ring can be enhanced, the nylon block is formed into a spiral line by extruding the nylon block through the thread of the thread, the nylon block is tightly attached to the bolt through the spiral line, the friction resistance is increased, and the whole trapezoidal nut is prevented from loosening in continuous vibration and is firmer;

2. the spring piece drives the guide block and removes, and the guide block can be laminated with the inner wall in round platform groove to slide along the inner wall in round platform groove, make the spring piece crooked towards the direction of bolt, crooked spring piece drives the rubber piece and removes, makes the rubber piece push the bolt, further increases frictional resistance, is favorable to preventing that the spiral ring is not hard up.

Drawings

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

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

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

fig. 4 is an enlarged schematic view of the structure of fig. 2B according to the present utility model.

In the figure: 1. a spiro ring; 2. a protective shell; 3. an anti-loosening component; 31. a first auxiliary ring; 32. nylon blocks; 33. an inclined plane; 4. a reinforcement assembly; 41. a second auxiliary ring; 42. a circular table groove; 43. a spring piece; 44. a rubber block; 5. an anti-skid sleeve; 6. a limit groove; 7. a guide block; 8. stabilizing the cylinder.

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.

Example 1:

referring to fig. 1-4, the utility model provides a high-strength firm trapezoidal nut, which comprises a spiral ring 1, wherein trapezoidal threads are arranged on the inner wall of the spiral ring 1, a protective shell 2 is fixedly arranged on the surface of the spiral ring 1, the protective shell 2 is made of polyether-ether-ketone materials, and a locking component 3 is arranged at the bottom end of the protective shell 2;

the cross section of the spiral ring 1 is in a regular hexagon shape, and the longitudinal section of the spiral ring 1 is in a rectangle shape;

referring to fig. 1-4, the present utility model provides a high-strength firm trapezoidal nut, which further includes a locking component 3, wherein the locking component 3 includes a first auxiliary ring 31 and a reinforcing component 4, the first auxiliary ring 31 is fixedly arranged at the bottom end of the protective shell 2, a plurality of nylon blocks 32 are fixedly arranged on the inner wall of the first auxiliary ring 31, the nylon blocks 32 are uniformly distributed in a ring shape, and inclined planes 33 are arranged on the surfaces of the nylon blocks 32;

the inner diameter of the first auxiliary ring 31 is larger than that of the spiral ring 1, the outer diameter of the first auxiliary ring 31 is smaller than that of the second auxiliary ring 41, and the inner wall of the first auxiliary ring 31 is convenient to fix a nylon block 32 with a proper thickness;

the surface of the first auxiliary ring 31 is fixedly provided with the stabilizing cylinder 8, the surface of the stabilizing cylinder 8 is in sliding connection with the surface of the limiting groove 6, the stabilizing cylinder 8 slides into the limiting groove 6, the connection of the first auxiliary ring 31 and the second auxiliary ring 41 in the horizontal direction is enhanced, and the impact resistance of the spiral ring 1 is improved;

specifically, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, when the spiral ring 1 is screwed with the bolt, the thread of the bolt is in threaded connection with the trapezoid thread on the inner wall of the spiral ring 1, one end of the bolt extrudes the nylon block 32 through the inclined plane 33 to vacate space, the spiral ring 1 is conveniently sleeved outside the bolt, one end of the bolt is separated from the inclined plane 33, the nylon block 32 is extruded by the thread of the thread to enable the nylon block 32 to form a spiral, and then the nylon block 32 is tightly attached to the bolt through the spiral after the spiral ring 1 stops moving, so that friction resistance is increased, and the whole trapezoid nut is prevented from loosening in continuous vibration and is firmer.

Example 2:

the reinforcing component 4 comprises a second auxiliary ring 41, the second auxiliary ring 41 is slidably arranged at the bottom end of the first auxiliary ring 31, trapezoidal threads are arranged on the inner wall of the second auxiliary ring 41, a circular table groove 42 is formed in the top end of the second auxiliary ring 41, a plurality of spring pieces 43 are slidably connected to the inner wall of the circular table groove 42, rubber blocks 44 are fixedly arranged on one sides of the plurality of spring pieces 43, the other sides of the plurality of spring pieces 43 are fixedly connected with the inner wall of the first auxiliary ring 31, and the plurality of spring pieces 43 are uniformly distributed in a ring shape;

the surface of the second auxiliary ring 41 is fixedly provided with an anti-skid sleeve 5, the top end of the second auxiliary ring 41 is provided with a limit groove 6, the bottom end of the second auxiliary ring 41 is provided with anti-skid patterns, and the anti-skid sleeve 5 is arranged to facilitate the rotation of the second auxiliary ring 41, so that the second auxiliary ring 41 is conveniently screwed in the surface of a bolt;

the surfaces of the plurality of spring pieces 43 are fixedly provided with guide blocks 7, the surfaces of the plurality of guide blocks 7 are in sliding connection with the inner wall of the circular truncated cone groove 42, the first auxiliary ring 31 moves downwards to drive the plurality of spring pieces 43 to move downwards, the spring pieces 43 drive the guide blocks 7 to move, the guide blocks 7 are attached to the inner wall of the circular truncated cone groove 42 and slide along the inner wall of the circular truncated cone groove 42, the position change of the guide blocks 7 pushes the spring pieces 43, the spring pieces 43 are promoted to bend towards the direction of the bolts, and the bolt is pushed by the spring pieces 43 and the rubber blocks 44;

specifically, as shown in fig. 1, 2, 3 and 4, the second auxiliary ring 41 is screwed with the bolt until the second auxiliary ring 41 contacts the bearing surface through the anti-skid thread, then the spiral ring 1 is screwed with the bolt, the spiral ring 1 drives the first auxiliary ring 31 to move towards the direction close to the second auxiliary ring 41, the first auxiliary ring 31 drives the spring piece 43 to move, the spring piece 43 drives the guide block 7 to move, the guide block 7 is attached to the inner wall of the circular table groove 42 and slides along the inner wall of the circular table groove 42, the spring piece 43 is promoted to bend towards the direction of the bolt, the spring piece 43 drives the rubber piece 44 to move, the rubber piece 44 is promoted to push the threads of the bolt, and the friction resistance is further increased, so that the stability of the first auxiliary ring 31 is promoted.

Working principle: when the high-strength firm trapezoidal nut is specifically used, the protective shell 2 is fixedly arranged on the surface of the spiral ring 1, the protective shell 2 is made of polyether-ether-ketone materials, the polyether-ether-ketone has high temperature resistance, acid and alkali corrosion resistance and good mechanical strength, corrosion resistance of the spiral ring 1 can be enhanced, when the trapezoidal nut is required to be used for screwing with a bolt, the second auxiliary ring 41 is screwed with the bolt until the second auxiliary ring 41 is contacted with a bearing surface through anti-skid threads, the spiral ring 1 is screwed with the bolt, threads of the bolt are connected with trapezoidal threads on the inner wall of the spiral ring 1, the threads squeeze nylon blocks 32 to enable the nylon blocks 32 to form spirals, and then the nylon blocks 32 are tightly attached to the bolt through the spirals after the spiral ring 1 stops moving, so that friction resistance is increased, and the whole trapezoidal nut is prevented from loosening in continuous vibration.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a firm trapezoidal nut of high strength, includes spiro (1), its characterized in that, the inner wall of spiro (1) is provided with trapezoidal screw thread, the fixed surface of spiro (1) is equipped with protective housing (2), protective housing (2) adopt polyether-ether-ketone material to make, the bottom of protective housing (2) is equipped with locking subassembly (3), locking subassembly (3) are including first supplementary ring (31) and reinforcement subassembly (4), the fixed bottom that sets up in protective housing (2) of first supplementary ring (31), the fixed a plurality of nylon piece (32) that are equipped with of inner wall of first supplementary ring (31), a plurality of nylon piece (32) are annular evenly distributed, a plurality of nylon piece (32) surface all is provided with inclined plane (33).

2. A high strength, strong, trapezoidal nut according to claim 1, wherein: the reinforcing component (4) comprises a second auxiliary ring (41), the second auxiliary ring (41) is slidably arranged at the bottom end of the first auxiliary ring (31), trapezoidal threads are arranged on the inner wall of the second auxiliary ring (41), a circular table groove (42) is formed in the top end of the second auxiliary ring (41), a plurality of spring pieces (43) are slidably connected to the inner wall of the circular table groove (42), rubber blocks (44) are fixedly arranged on one side of each spring piece (43), a plurality of the other side of each spring piece (43) is fixedly connected with the inner wall of the first auxiliary ring (31), and the spring pieces (43) are uniformly distributed in a ring shape.

3. A high strength, strong, trapezoidal nut according to claim 2, wherein: the surface fixing of second assistance ring (41) is equipped with antiskid cover (5), limit groove (6) have been seted up on the top of second assistance ring (41), the bottom of second assistance ring (41) is provided with the antiskid line.

4. A high strength, strong, trapezoidal nut according to claim 2, wherein: the surfaces of the spring pieces (43) are fixedly provided with guide blocks (7), and the surfaces of the guide blocks (7) are slidably connected with the inner wall of the circular truncated cone groove (42).

5. A high strength, strong, trapezoidal nut according to claim 2, wherein: the inner diameter of the first auxiliary ring (31) is larger than that of the spiral ring (1), and the outer diameter of the first auxiliary ring (31) is smaller than that of the second auxiliary ring (41).

6. A high strength, strong, trapezoidal nut according to claim 3, wherein: the surface fixing of first auxiliary ring (31) is equipped with firm section of thick bamboo (8), the surface of firm section of thick bamboo (8) and the surface sliding connection of spacing groove (6).

7. A high strength, strong, trapezoidal nut according to claim 1, wherein: the cross section of the spiral ring (1) is in a regular hexagon shape, and the longitudinal section of the spiral ring (1) is in a rectangle shape.