CN215387307U

CN215387307U - Double-nut safety lock catch

Info

Publication number: CN215387307U
Application number: CN202121655991.9U
Authority: CN
Inventors: 许沙克
Original assignee: Hangzhou Unbounded Health Technology Co ltd
Current assignee: Hangzhou Unbounded Health Technology Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-01-04
Anticipated expiration: 2031-07-20

Abstract

The utility model discloses a double-nut safety lock catch which structurally comprises a sleeve seat, wherein a locking sleeve ring is arranged on the sleeve seat. The dumbbell piece is locked on the throwing rod through the safety lock catch, the weight of the dumbbell can be adjusted, and the firmness of dumbbell piece installation can be guaranteed.

Description

Double-nut safety lock catch

Technical Field

The utility model belongs to the field of fitness equipment, and particularly relates to a double-nut safety lock catch.

Background

Exercise equipment is generally classified into a single-function type and a comprehensive type according to the number of training functions, and commonly used exercise machines include rowing machines, body building vehicles, walking machines, running machines, waist building machines and the like. Wherein the dumbbell is a simple apparatus for strengthening muscular strength training. Its main material is cast iron, and some of them are covered with a layer of rubber. The muscle training device is used for muscle strength training and muscle compound action training. The dumbbell can be held by hands for patients with low muscle strength caused by paralysis, pain, long-term inactivity and the like, and the weight of the dumbbell can be used for performing resistance active exercise and training the muscle strength. Dumbbells can train a single muscle; if the weight is increased, the coordination of a plurality of muscles is needed, and the training can also be used as a muscle compound action training.

However, when the body-building equipment such as a dumbbell is used, the most important is the safety of the equipment, and the important is that the key parts of the equipment can be protected in multiple ways.

SUMMERY OF THE UTILITY MODEL

According to the dumbbell piece adjusting device, the dumbbell piece is locked on the throwing rod through the safety lock catch, so that the weight of the dumbbell can be adjusted, and the firmness of dumbbell piece installation can be guaranteed.

A double-nut safety lock catch comprises a sleeve seat, wherein a locking lantern ring is arranged on the sleeve seat;

the sleeve seat is characterized by comprising an abutting seat and a column sleeve which are integrally arranged, wherein an annular groove body is arranged at the bottom of the sleeve seat, a first thread is arranged on one side wall body of the annular groove body, a first limiting structure which protrudes inwards is arranged on one side wall body of the annular groove body, and a locking structure is arranged at one end, away from the annular groove body, of the column sleeve;

the one end of the locking lantern ring include can be with the cladding cover body of locking structure, the other end of the locking lantern ring be equipped with annular cell body matched with grafting structure, grafting structure on be equipped with first limit structure complex second limit structure, grafting structure on be equipped with first screw thread matched with second screw thread.

Preferably, the locking structure comprises a plurality of locking sheets, the sleeve body covers the locking sheets, and the front end of the sleeve body is of a closing-in structure with a reduced diameter.

Preferably, the inner side of the locking sheet is provided with a plurality of anti-skid protrusions, and the surface of the sleeve body is provided with a plurality of anti-skid lines.

Preferably, the first limiting structure comprises a plurality of first protruding blocks arranged on the abutting seat, and the first threads are arranged at the tail end of the column sleeve.

Preferably, the inserting structure comprises a plurality of inserting pieces, second convex blocks matched with the first limiting structures are arranged at the tail ends of the inserting pieces, a groove is formed between every two adjacent inserting pieces, and the second threads are arranged on the inner side surfaces of the inserting pieces.

The utility model has the advantages that:

the inner wall of the annular groove body and the inserting structure on the locking lantern ring are provided with matched threads and limiting structures, so that the locking lantern ring can be firstly inserted into the annular groove body, and then the locking lantern ring is connected with the sleeve seat more tightly through rotation. The binding off structure diameter at the locking lantern ring front end diminishes gradually, and when the fastening of the locking lantern ring was on the cover seat, binding off structure can just will have elastic stay to the axle center extrusion, causes on the inboard anti-skidding protruding card embedding of stay gets rid of the screw thread of pole, consolidates the stability of cover seat on getting rid of the pole, makes dumbbell piece install more firmly on getting rid of the pole. Meanwhile, the surface of the sleeve body is provided with anti-skid lines, so that the safety lock catch has better friction force in the process of disassembly and assembly.

A groove is formed between every two adjacent inserting pieces, so that the inserting pieces have enough telescopic elasticity to support repeated assembly and disassembly of the inserting pieces when passing through the first limiting structure. The high-density foam cotton is arranged at the handle of the swing rod, so that larger friction force can be provided to prevent slipping when the swing rod is used, soft touch feeling is achieved, and pressure on hands of a user is reduced. The dumbbell piece is designed to be triangular, so that the dumbbell piece is favorable for preventing the bell from being thrown, and compared with a circular dumbbell piece, the dumbbell piece can roll on uneven ground, and the triangular shape avoids the safety problem caused by the disordered rolling of equipment. Meanwhile, the edges of the dumbbell pieces are arc-shaped chamfers, so that damage to furniture or the bodies of people caused by collision of the dumbbell pieces is prevented.

Because first limit structure cooperation second limit structure between seat cover and the locking lantern ring, the locking lantern ring rotates from the seat cover and loosens, when carrying out the combination of dumbbell piece and changing, the locking lantern ring can not drop from the seat cover for the operation of equipment is convenient and fast more, and the equipment subassembly is difficult to lose.

Drawings

Fig. 1 is a schematic view of the structure of the locking collar and the sleeve seat of the utility model.

Fig. 2 is a schematic structural view of the locking collar of the present invention.

Fig. 3 is a schematic structural view of the present invention.

In the figure, the sleeve seat 4, the locking lantern ring 5, the abutting seat 6, the column sleeve 7, the annular groove body 8, the first limiting structure 10, the locking structure 11, the sleeve body 12, the inserting structure 13, the locking sheet 16, the closing structure 17, the anti-skid grains 18, the first convex block 19, the inserting sheet 20, the second convex block 21, the slot 22 and the anti-skid protrusions 24.

Detailed Description

As shown in fig. 1-3, a double-nut safety lock catch comprises a sleeve seat 4, wherein a locking lantern ring 5 is arranged on the sleeve seat 4;

the novel bearing seat is characterized in that the sleeve seat 4 comprises an abutting seat 6 and a column sleeve 7 which are integrally arranged, an annular groove body 8 is arranged at the bottom of the sleeve seat 4, a first thread is arranged on one side wall body of the annular groove body 8, a first limiting structure 10 protruding inwards is arranged on one side wall body of the annular groove body 8, and a locking structure 11 is arranged at one end, far away from the annular groove body 8, of the column sleeve 7;

one end of the locking lantern ring 5 comprises a sleeve body 12 capable of wrapping the locking structure 11, the other end of the locking lantern ring 5 is provided with an inserting structure 13 matched with the annular groove body 8, the inserting structure 13 is provided with a second limiting structure matched with the first limiting structure 10, and the inserting structure 13 is provided with a second thread matched with the first thread.

In this embodiment, the locking structure 11 includes a plurality of locking pieces 16, the sheath 12 covers the locking pieces 16, and the front end of the sheath 12 is a necking structure 17 with a reduced diameter.

In this embodiment, the locking plate 16 has a plurality of anti-slip protrusions 24 on the inner side thereof, and the sheath 12 has a plurality of anti-slip threads 18 on the surface thereof.

In this embodiment, the first limiting structure 10 includes a plurality of first protrusions 19 disposed on the abutting seat 6, and the first threads are disposed at the end of the column sleeve 7.

In this embodiment, the inserting structure 13 includes a plurality of inserting pieces 20, the end of each inserting piece 20 is provided with a second protrusion 21 matched with the first limiting structure, a slot 22 is formed between adjacent inserting pieces 20, and the second thread is disposed on the inner side surface of each inserting piece 20.

The inner wall of the annular groove body 8 and the inserting structure 13 on the locking sleeve ring 5 are provided with matched threads and limiting structures, so that the locking sleeve ring 5 can be firstly inserted into the annular groove body 8, and then the locking sleeve ring 5 and the sleeve seat 4 are connected together more tightly through rotation. The diameter of the closing-up structure 17 at the front end of the locking lantern ring 5 is gradually reduced, when the locking lantern ring 5 is fastened on the sleeve seat 5, the closing-up structure 17 can just extrude the elastic locking sheet 16 to the axis, so that the anti-skidding protrusions 24 on the inner side of the locking sheet 16 are embedded into the threads of the throwing rod, the stability of the sleeve seat 4 on the throwing rod is strengthened, and the dumbbell sheet is installed more firmly on the throwing rod 1. Meanwhile, the surface of the sleeve body 12 is provided with anti-skid lines 18, so that the safety lock catch has better friction force in the process of disassembly and assembly.

The slot 22 is provided between the adjacent insertion pieces 20, so that the insertion pieces 20 have sufficient elastic force to support the repeated assembly and disassembly of the insertion pieces 20 when passing through the first limiting structure 10. The high-density foam cotton is arranged at the handle of the swing rod, so that larger friction force can be provided to prevent slipping when the swing rod is used, soft touch feeling is achieved, and pressure on hands of a user is reduced. The dumbbell piece is designed to be triangular, so that the dumbbell piece is favorable for preventing the bell from being thrown, and compared with a circular dumbbell piece, the dumbbell piece can roll on uneven ground, and the triangular shape avoids the safety problem caused by the disordered rolling of equipment. Meanwhile, the edges of the dumbbell pieces are arc-shaped chamfers, so that damage to furniture or the bodies of people caused by collision of the dumbbell pieces is prevented.

Because first limit structure 10 cooperation second limit structure between seat cover 4 and the locking lantern ring 5, the locking lantern ring 5 rotates from seat cover 4 and loosens, when carrying out the combination of dumbbell piece and changing, the locking lantern ring 5 can not drop from seat cover 4 for the operation of equipment is convenient and fast more, and the equipment subassembly is difficult to lose.

Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the utility model as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-nut safety lock catch comprises a sleeve seat (4), wherein a locking lantern ring (5) is arranged on the sleeve seat (4);

the novel anti-theft device is characterized in that the sleeve seat (4) comprises an abutting seat (6) and a column sleeve (7) which are integrally arranged, an annular groove body (8) is arranged at the bottom of the sleeve seat (4), a first thread is arranged on one side wall body of the annular groove body (8), a first limiting structure (10) protruding inwards is arranged on one side wall body of the annular groove body (8), and a locking structure (11) is arranged at one end, far away from the annular groove body (8), of the column sleeve (7);

the one end of the locking lantern ring (5) including can be with the cover body (12) of locking structure (11) cladding, the other end of the locking lantern ring (5) on be equipped with annular cell body (8) matched with grafting structure (13), grafting structure (13) on be equipped with first limit structure (10) complex second limit structure, grafting structure (13) on be equipped with first screw thread matched with second screw thread.

2. A double nut safety catch according to claim 1, wherein: the locking structure (11) comprises a plurality of locking sheets (16), the sleeve body (12) covers the locking sheets (16), and the front end of the sleeve body (12) is a closing-in structure (17) with a reduced diameter.

3. A double nut safety catch according to claim 2, wherein: the inner side of the locking sheet (16) is provided with a plurality of anti-skid protrusions (24), and the surface of the sleeve body (12) is provided with a plurality of anti-skid lines (18).

4. A double nut safety catch according to any one of claims 1 to 3, wherein: the first limiting structure (10) comprises a plurality of first protruding blocks (19) arranged on the abutting seat (6), and the first threads are arranged at the tail end of the column sleeve (7).

5. A double nut safety catch according to claim 4, wherein: the inserting structure (13) comprises a plurality of inserting pieces (20), the tail ends of the inserting pieces (20) are provided with second convex blocks (21) matched with the first limiting structures, a groove (22) is formed between every two adjacent inserting pieces (20), and second threads are arranged on the inner side surfaces of the inserting pieces (20).