CN210440404U

CN210440404U - Split type fastening nut for mechanical equipment

Info

Publication number: CN210440404U
Application number: CN201921416928.2U
Authority: CN
Inventors: 沈峰
Original assignee: Haiyan Shengxin Standard Parts Co Ltd
Current assignee: Haiyan Shengxin Standard Parts Co Ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-05-01
Anticipated expiration: 2029-08-29

Abstract

The utility model discloses a split fastening nut for mechanical equipment, which comprises a nut body and an anti-loosening sleeve, wherein the center of the nut body is provided with a first through hole with an internal thread, the outer wall of the nut body is provided with an annular groove to form a neck, the neck is provided with a plurality of second through holes communicated with the first through hole, the anti-loosening sleeve comprises a driving sleeve body and a locking rotor, the driving sleeve body is sleeved at the annular groove, the locking rotor is arranged between the driving sleeve body and the neck, the locking rotor is provided with an elastic rubber locking arm, the driving sleeve body drives the locking rotor to rotate so as to enable the elastic rubber locking arm to rotate along with the driving sleeve body and extend into the first through hole along the second through hole, the anti-loosening sleeve is arranged on the nut body, the driving sleeve body on the driving sleeve body drives the locking rotor to rotate simultaneously by utilizing gear transmission, and the elastic rubber locking arm radially extends into the second through hole, thereby being stuck in the gap between the nut body and the bolt.

Description

Split type fastening nut for mechanical equipment

[ technical field ] A method for producing a semiconductor device

The utility model relates to a technical field of nut, especially a mechanical equipment is with split type fastening nut's technical field.

[ background of the invention ]

Some mechanical equipment with large vibration amplitude works, the common nut is easy to loosen under the action of huge vibration force, the nut often falls off from the equipment and is even damaged, and mechanical faults are caused.

[ Utility model ] content

The utility model discloses an aim at solving the problem among the prior art, provide a split type fastening nut for mechanical equipment, can make the chucking cooperation between bolt and the nut body, have good locking effect.

In order to realize the above-mentioned purpose, the utility model provides a split type fastening nut for mechanical equipment, including nut body and locking cover, the central authorities of nut body are equipped with and have the first through-hole of internal screw thread, thereby the outer wall of nut body is equipped with the annular groove and forms the neck, thereby be equipped with the second through-hole of the first through-hole of a plurality of intercommunication on the neck, locking cover includes the driving sleeve body and locking rotor, the driving sleeve body cover is established in annular groove department, a plurality of locking rotor sets up between the driving sleeve body and neck, be equipped with elastic rubber locking arm on the locking rotor, thereby the driving sleeve body drives locking rotor and rotates and makes elastic rubber locking arm rotate along with it and stretch into in the first through-hole along the second through-hole.

Preferably, the nut body is hexagonal, the driving sleeve body is hexagonal, and the outer sides of the nut body and the driving sleeve body are flush with each other.

Preferably, the annular groove is located in the center of the nut body.

Preferably, the outer wall of the lower section of the neck is provided with a first tooth part, the second through hole is formed in the first tooth part, the inner wall of the driving sleeve is provided with a second tooth part, the locking rotor comprises a first cylinder, a second cylinder and an elastic rubber locking arm, the outer wall of the first cylinder is provided with a third tooth part, the third tooth part is meshed with the first tooth part and the second tooth part respectively, the second cylinder is coaxially fixed on the first cylinder, and the elastic rubber locking arm is fixed on the side face of the second cylinder.

Preferably, the elastic rubber locking arm is in a curved arc shape, and an arc center of the elastic rubber locking arm faces the inner side of the nut body.

Preferably, the width of the elastic rubber lock arm is gradually reduced from a side close to the second column to a side far from the second column.

Preferably, the side face of the end part of the elastic rubber locking arm far away from the second column body is further provided with a plurality of anti-falling sawteeth, and the anti-falling sawteeth are positioned on one side of the central axis close to the nut body.

Preferably, the anti-falling sawtooth comprises an inclined surface far away from the second cylinder and a straight surface close to the second cylinder, and a step is formed between the inclined surface and the straight surface of the adjacent anti-falling sawtooth.

The utility model has the advantages that: the utility model has the advantages that the anti-loosening sleeve is arranged on the nut body, the drive sleeve body on the nut body drives the plurality of locking rotors to rotate simultaneously by utilizing the gear transmission, and the elastic rubber locking arm radially extends into the second through hole, so that the elastic rubber locking arm is blocked in a gap between the nut body and the bolt, the bolt is tightly clamped and matched with the nut body, and the locking effect is good; the anti-reversing sawteeth are arranged on the elastic rubber locking arm, so that the locking rotor is prevented from reversely rotating, and the locking effect is ensured.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

[ description of the drawings ]

Fig. 1 is a front view of a split fastening nut for a mechanical device according to the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is a sectional view taken along line B-B of FIG. 1;

FIG. 4 is an enlarged view at C of FIG. 3;

fig. 5 is a front cross-sectional view of the nut body of the split fastening nut for mechanical equipment.

In the figure: 1-nut body, 11-first through hole, 12-annular groove, 13-neck, 131-second through hole, 132-first tooth part, 2-anti-loose sleeve, 21-driving sleeve body, 211-second tooth part, 22-locking rotor, 221-first cylinder, 2211-third tooth part, 222-second cylinder, 223-elastic rubber locking arm, 224-anti-backward sawtooth, 2241-inclined plane, 2242-straight plane and 2243-step.

[ detailed description ] embodiments

Referring to fig. 1 to 5, the utility model relates to a split type fastening nut for mechanical equipment, which comprises a nut body 1 and an anti-loose sleeve 2, wherein the center of the nut body 1 is provided with a first through hole 11 with an internal thread, the outer wall of the nut body 1 is provided with an annular groove 12 to form a neck 13, the neck 13 is provided with a plurality of second through holes 131 communicated with the first through hole 11, the anti-loose sleeve 2 comprises a driving sleeve body 21 and a locking rotor 22, the driving sleeve body 21 is sleeved at the annular groove 12, the locking rotor 22 is arranged between the driving sleeve body 21 and the neck 13, the locking rotor 22 is provided with an elastic rubber locking arm 223, the driving sleeve body 21 drives the locking rotor 22 to rotate so that the elastic rubber locking arm 223 rotates along with the rotation and extends into the first through hole 11 along the second through hole 131, the nut body 1 is hexagonal, the driving sleeve body 21 is hexagonal, the outside of nut body 1 and the drive cover body 21 flushes mutually, annular groove 12 is located the central authorities of nut body 1, be equipped with first tooth portion 132 on the outer wall of neck 13 hypomere part, second through-hole 131 is located on first tooth portion 132, be equipped with second tooth portion 211 on the inner wall of the drive cover body 21, locking rotor 22 includes first cylinder 221, second cylinder 222 and elastic rubber locking arm 223, be equipped with third tooth portion 2211 on the outer wall of first cylinder 221, third tooth portion 2211 meshes with first tooth portion 132 and second tooth portion 211 respectively mutually, second cylinder 222 is coaxial to be fixed on first cylinder 221, elastic rubber locking arm 223 is fixed in the side of second cylinder 222, elastic rubber locking arm 223 is crooked arc, the arc center of elastic rubber locking arm 223 is towards the inboard of nut body 1, the width of elastic rubber locking arm 223 is from one side of being close to second cylinder 222 to one side of keeping away from second cylinder 222 gradually Reduce, the tip side that second cylinder 222 was kept away from to elasticity rubber locking arm 223 still is equipped with a plurality of and prevents down sawtooth 224, prevent down sawtooth 224 to be located the one side of the axis that is close to nut body 1, prevent down sawtooth 224 including keeping away from the inclined plane 2241 of second cylinder 222 and the straight face 2242 that is close to second cylinder 222, adjacent prevent down between inclined plane 2241 and the straight face 2242 of down sawtooth 224 and form step 2243.

The utility model discloses the working process:

the utility model relates to a mechanical equipment is with split type fastening nut in the course of the work, at first, with the first through-hole of bolt screw in 11, rotate the drive cover body 21 through the spanner afterwards, make a plurality of locking rotor 22 rotate to make in elastic rubber locking arm 223 rotates and stretches into first through-hole 11 along second through-hole 131, and then the card dies in the gap between the bolt of nut body 1 and screw in.

The utility model has the advantages that the anti-loosening sleeve is arranged on the nut body, the drive sleeve body on the nut body drives the plurality of locking rotors to rotate simultaneously by utilizing the gear transmission, and the elastic rubber locking arm radially extends into the second through hole, so that the elastic rubber locking arm is blocked in a gap between the nut body and the bolt, the bolt is tightly clamped and matched with the nut body, and the locking effect is good; the anti-reversing sawteeth are arranged on the elastic rubber locking arm, so that the locking rotor is prevented from reversely rotating, and the locking effect is ensured.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. The utility model provides a split type fastening nut for mechanical equipment which characterized in that: comprises a nut body (1) and an anti-loosening sleeve (2), wherein a first through hole (11) with internal threads is arranged in the center of the nut body (1), the outer wall of the nut body (1) is provided with an annular groove (12) so as to form a neck part (13), a plurality of second through holes (131) communicated with the first through holes (11) are arranged on the neck part (13), the anti-loosening sleeve (2) comprises a driving sleeve body (21) and a locking rotor (22), the driving sleeve body (21) is sleeved at the annular groove (12), a plurality of locking rotors (22) are arranged between the driving sleeve body (21) and the neck (13), the locking rotor (22) is provided with an elastic rubber locking arm (223), and the driving sleeve body (21) drives the locking rotor (22) to rotate, so that the elastic rubber locking arm (223) rotates along with the elastic rubber locking arm and extends into the first through hole (11) along the second through hole (131).

2. The split type fastening nut for mechanical equipment according to claim 1, wherein: the nut body (1) is hexagonal, the driving sleeve body (21) is hexagonal, and the outer sides of the nut body (1) and the driving sleeve body (21) are flush with each other.

3. The split type fastening nut for mechanical equipment according to claim 1, wherein: the annular groove (12) is positioned in the center of the nut body (1).

4. The split type fastening nut for mechanical equipment according to claim 1, wherein: be equipped with first tooth portion (132) on the outer wall of neck (13) hypomere part, second through-hole (131) are located on first tooth portion (132), be equipped with second tooth portion (211) on the inner wall of the drive cover body (21), locking rotor (22) are including first cylinder (221), second cylinder (222) and elastic rubber locking arm (223), be equipped with third tooth portion (2211) on the outer wall of first cylinder (221), third tooth portion (2211) mesh with first tooth portion (132) and second tooth portion (211) respectively mutually, second cylinder (222) coaxial fixation is on first cylinder (221), elastic rubber locking arm (223) is fixed at the side of second cylinder (222).

5. The split type fastening nut for mechanical equipment according to claim 4, wherein: the elastic rubber locking arm (223) is in a bent arc shape, and the arc center of the elastic rubber locking arm (223) faces the inner side of the nut body (1).

6. The split type fastening nut for mechanical equipment according to claim 4, wherein: the width of the elastic rubber locking arm (223) is gradually reduced from a side close to the second cylinder (222) to a side far from the second cylinder (222).

7. The split type fastening nut for mechanical equipment according to claim 4, wherein: the end part side face of the elastic rubber locking arm (223) far away from the second cylinder (222) is further provided with a plurality of anti-falling sawteeth (224), and the anti-falling sawteeth (224) are located on one side of the central axis close to the nut body (1).

8. The split type fastening nut for mechanical equipment according to claim 7, wherein: prevent that back-up sawtooth (224) is including keeping away from inclined plane (2241) of second cylinder (222) and straight face (2242) that is close to second cylinder (222), and is adjacent form step (2243) between inclined plane (2241) and the straight face (2242) of preventing back-up sawtooth (224).