Nut assembly capable of presetting locking torque

Abstract

The utility model relates to the field of threaded connectors, and discloses a nut component capable of presetting locking torque, which comprises a nut base, a ratchet groove is arranged at the top of the nut base, a support spring is fixedly mounted on the inner side of the ratchet groove, and a limit ratchet is fixedly mounted at the top of the support spring. The limiting ratchet wheel is slidably installed in the ratchet wheel groove, an adjusting disc is fixedly installed on the inner side of the ratchet wheel groove, a plurality of sliding grooves are formed in the top of the adjusting disc, adjusting sliding blocks are slidably installed on the inner sides of the sliding grooves, and moving columns are fixedly installed on the tops of the adjusting sliding blocks. Compared with the prior art, the nut locking device has the following advantages and effects that the predeterminable locking torque of the nut assembly can be adjusted through the arranged mechanism, the working efficiency is greatly improved, the bolt which is rotated in a dark mode can be fixed, the situation that the bolt is vibrated and the like, and consequently inversion is caused is avoided, and the stability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of threaded connection pieces, in particular to a nut assembly with a predetermined locking torque. Background Art

[0002] In many applications, there are strict requirements on the tightening torque of the nut, and the tightening torque cannot exceed a certain value. In the existing technology, to meet the above requirements, it is necessary to use a special torque wrench to tighten the nut and rely on the torque wrench to set the tightening torque. Since a special tool is required, it is extremely inconvenient in many applications.

[0003] In response to the above problems, a utility model patent with patent number CN204477012U has been disclosed. The nut assembly with predetermined locking torque is assembled from an internally threaded tube, a transmission disc and an adjusting nut. The internal thread of the internally threaded tube is the part where the entire nut assembly is threadedly connected to the external threaded connecting piece. A flange is fixed at one end of the internally threaded tube. Torque is transmitted between the flange and the transmission disc through ratchets. The ratchets of the transmission disc and the ratchets of the flange have inclined surfaces that can contact each other. The inclination direction of the inclined surfaces is such that when the transmission disc drives the internally threaded tube to rotate in the tightening direction through the ratchet, the inclined surfaces on the ratchets of the transmission disc and the flange are pressed together, thereby causing the transmission disc to be subjected to an axial component of force. This axial component of force causes the transmission disc to have a tendency to slide axially in a direction away from the flange. The advantage of the present invention is that only an ordinary wrench is needed to ensure that the tightening torque of the nut assembly does not exceed a predetermined value, which greatly facilitates the assembly work, and the size of the tightening torque is adjustable, which is flexible and convenient to use; however, there are still shortcomings. When the existing device is in use, it is relatively cumbersome to adjust the predetermined locking torque of the nut structure, and the existing device lacks a limiting mechanism for the bolt after the bolt is installed. Utility Model Content

[0004] The utility model aims to provide a nut assembly with a predetermined locking torque, which has the effects of simple adjustment and stable bolt installation.

[0005] The above technical purpose of the present utility model is achieved through the following technical solutions: a nut assembly with a predetermined locking torque, comprising a nut base, a ratchet groove being provided on the top of the nut base, and a support spring being fixedly installed on the inner side of the ratchet groove; a limiting ratchet being fixedly installed on the top of the support spring, and the limiting ratchet being slidably installed in the ratchet groove; an adjusting disk being fixedly installed on the inner side of the ratchet groove, and a plurality of sliding grooves being provided on the top of the adjusting disk.

[0006] The present invention is further configured as follows: an adjusting slider is slidably mounted on the inner sides of the plurality of sliding grooves.

[0007] The present invention is further configured as follows: a movable column is fixedly mounted on the top of each of the plurality of adjusting sliders, and a mounting hole is provided at the bottom of the nut base.

[0008] The present invention is further configured as follows: an internal threaded column is fixedly installed on the inner side of the mounting hole.

[0009] The present invention is further configured as follows: a rotating disk is sleeved on the outer side of the internal threaded column, and a plurality of movable grooves are opened on the top of the rotating disk.

[0010] The present invention is further configured such that: a plurality of movable columns are slidably mounted in corresponding movable grooves, so that the corresponding movable columns are driven to move when the plurality of movable grooves move.

[0011] The present invention is further configured as follows: a hexagonal turntable is fixedly mounted on the top of the rotating disk; a fixed ratchet is provided on the outer fixed sleeve of the rotating disk; and the fixed ratchet is adapted to the limiting ratchet.

[0012] The utility model is further configured as follows: a limit ring is fixedly installed on the top of the hexagonal turntable, a plurality of limit grooves are opened on the top of the limit ring, a plurality of threaded holes are opened on the bottom of the limit ring, and the plurality of threaded holes are respectively connected to the corresponding limit grooves.

[0013] The utility model is further configured as follows: a bolt is installed on the inner thread of the internal thread column, a plurality of connecting grooves are provided on the top of the bolt, corresponding limiting metal blocks are clamped and installed on the inner sides of the plurality of limiting grooves, and the plurality of limiting metal blocks are respectively adapted to the corresponding connecting grooves, so that the plurality of limiting metal blocks can limit the same bolt.

[0014] The present invention is further configured as follows: through holes are provided on the tops of the plurality of limiting metal blocks, limiting threaded rods are slidably installed in the plurality of through holes, and the plurality of limiting threaded rods are respectively adapted to the corresponding threaded holes.

[0015] The beneficial effects of the utility model are: the predetermined locking torque of the nut assembly can be adjusted through the provided mechanism, which greatly improves the working efficiency, and the bolts can be fixed after being turned secretly to prevent them from being vibrated and causing reversal, thereby improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a nut assembly with a predetermined locking torque proposed by the present invention;

[0018] Figure 2 This is a schematic cross-sectional view of the three-dimensional structure of a nut assembly with a predetermined locking torque proposed by the present invention;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of a limiting mechanism of a nut assembly with a predetermined locking torque proposed by the present invention;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of an adjustment mechanism of a nut assembly with a predetermined locking torque proposed by the present invention;

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure explosion of an adjustment mechanism of a nut assembly with a predetermined locking torque proposed by the present invention.

[0022] In the figure, 1. nut base; 2. bolt; 3. ratchet groove; 4. adjusting disk; 5. sliding groove; 6. adjusting slider; 7. moving column; 8. moving groove; 9. rotating disk; 10. hexagonal turntable; 11. limiting ring; 12. fixed ratchet; 13. limiting ratchet; 14. supporting spring; 15. limiting groove; 16. limiting metal block; 17. limiting threaded rod; 18. internal threaded column; 19. threaded hole. DETAILED DESCRIPTION

[0023] Reference Figure 1-5 A nut assembly with a predetermined locking torque includes a nut assembly with a predetermined locking torque, including a nut base 1, a ratchet groove 3 is provided on the top of the nut base 1, and a support spring 14 is fixedly installed on the inner side of the ratchet groove 3; a limiting ratchet 13 is fixedly installed on the top of the support spring 14, and the limiting ratchet 13 is slidably installed in the ratchet groove 3; an adjusting disk 4 is fixedly installed on the inner side of the ratchet groove 3, and a plurality of sliding grooves 5 are provided on the top of the adjusting disk 4.

[0024] In this embodiment, an adjusting slider 6 is slidably mounted on the inner sides of the plurality of sliding grooves 5 .

[0025] In this embodiment, a movable column 7 is fixedly mounted on the top of each of the plurality of adjusting sliders 6 , and a mounting hole is provided at the bottom of the nut base 1 .

[0026] In this embodiment, an internal threaded column 18 is fixedly installed on the inner side of the mounting hole.

[0027] In this embodiment, a rotating disk 9 is sleeved on the outer side of the internal threaded column 18 , and a plurality of movable slots 8 are formed on the top of the rotating disk 9 .

[0028] In this embodiment, the plurality of movable columns 7 are slidably installed in the corresponding movable grooves 8 , so that the corresponding movable columns 7 are driven to move when the plurality of movable grooves 8 move.

[0029] In this embodiment, a hexagonal turntable 10 is fixedly mounted on the top of the rotating disk 9 , and a fixed ratchet 12 is fixedly sleeved on the outer side of the rotating disk 9 . The fixed ratchet 12 is matched with the limiting ratchet 13 .

[0030] In this embodiment, a limit ring 11 is fixedly installed on the top of the hexagonal turntable 10. A plurality of limit grooves 15 are provided on the top of the limit ring 11, and a plurality of threaded holes 19 are provided on the bottom of the limit ring 11. The plurality of threaded holes 19 are respectively connected to the corresponding limit grooves 15.

[0031] In this embodiment, the inner thread of the internal threaded column 18 is installed with a bolt 2, and a plurality of connecting grooves are provided on the top of the bolt 2. The inner sides of the plurality of limiting grooves 15 are all clamped and installed with corresponding limiting metal blocks 16. The plurality of limiting metal blocks 16 are respectively adapted to the corresponding connecting grooves, so that the plurality of limiting metal blocks 16 can limit the same bolt 2.

[0032] In this embodiment, through holes are formed on the tops of the plurality of limiting metal blocks 16 , and limiting threaded rods 17 are slidably installed in the plurality of through holes. The plurality of limiting threaded rods 17 are respectively matched with the corresponding threaded holes 19 .

[0033] Working principle: After the nut base 1 is fixedly installed on the object, the staff drives the hexagonal turntable 10 to rotate through a wrench. The rotation of the hexagonal turntable 10 drives the rotating disk 9 to rotate. The rotation of the rotating disk 9 drives the multiple moving grooves 8 to move. The movement of the multiple moving grooves 8 drives the corresponding moving columns 7 to move. Since the multiple adjusting sliders 6 are all slidably installed in the corresponding sliding grooves 5, the multiple adjusting sliders 6 can only move back and forth around the center of the nut base 1. The movement of the multiple adjusting sliders 6 squeezes the inner side of the nut base 1, thereby changing the locking torque inside the internal threaded column 18, making the bolt 2 more tightly connected during installation. At the same time, the hexagonal turntable 10 rotates The fixed ratchet 12 is driven to rotate. At this time, the rotation direction of the fixed ratchet 12 is consistent with the tooth groove direction of the limiting ratchet 13. Therefore, the limiting ratchet 13 will not limit the fixed ratchet 12. When the locking torque is adjusted, the limiting ratchet 13 is affected by the supporting force of the support spring 14 to limit the fixed ratchet 12 to prevent it from reversing and changing the locking torque. When the bolt 2 and the internal threaded column 18 are installed, the staff installs multiple limiting metal blocks 16 in the corresponding limiting grooves 15, and then multiple limiting threaded rods 17 pass through the corresponding limiting metal blocks 16 and connect with the corresponding threaded holes 19 to lock and prevent the bolt 2 from falling off.

[0034] The technical progress achieved by the present invention over the prior art is that the predetermined locking torque of the nut assembly can be adjusted through the provided mechanism, which greatly improves the working efficiency, and can fix the bolt 2 after dark rotation to prevent it from being vibrated and causing inversion, thereby improving the stability of the device.

Claims

1. A nut assembly with a predetermined locking torque, characterized in that: include: A nut base (1), wherein a ratchet groove (3) is provided on the top of the nut base (1), and a support spring (14) is fixedly installed on the inner side of the ratchet groove (3); A limiting ratchet (13) is fixedly mounted on the top of the support spring (14), and the limiting ratchet (13) is slidably mounted in the ratchet groove (3); An adjusting disk (4) is fixedly mounted on the inner side of the ratchet groove (3), and a plurality of sliding grooves (5) are formed on the top of the adjusting disk (4).

2. A nut assembly with a predetermined locking torque according to claim 1, characterized in that: Adjustment sliders (6) are slidably mounted on the inner sides of the plurality of sliding grooves (5).

3. A nut assembly with a predetermined locking torque according to claim 2, characterized in that: A movable column (7) is fixedly mounted on the top of each of the plurality of adjusting sliders (6), and a mounting hole is provided at the bottom of the nut base (1).

4. A nut assembly with a predetermined locking torque according to claim 3, characterized in that: An internal thread column (18) is fixedly installed on the inner side of the mounting hole.

5. A nut assembly with a predetermined locking torque according to claim 4, characterized in that: A rotating disk (9) is sleeved on the outer side of the internal thread column (18), and a plurality of movable grooves (8) are opened on the top of the rotating disk (9).

6. The nut assembly with a predetermined locking torque according to claim 5, characterized in that: The plurality of movable columns (7) are respectively slidably mounted in the corresponding movable grooves (8).

7. The nut assembly with a predetermined locking torque according to claim 6, characterized in that: A hexagonal rotating disk (10) is fixedly mounted on the top of the rotating disk (9), and a fixed ratchet (12) is provided on the outer fixed sleeve of the rotating disk (9), and the fixed ratchet (12) is matched with a limiting ratchet (13).

8. The nut assembly with a predetermined locking torque according to claim 7, characterized in that: A limiting ring (11) is fixedly installed on the top of the hexagonal turntable (10), a plurality of limiting grooves (15) are provided on the top of the limiting ring (11), a plurality of threaded holes (19) are provided on the bottom of the limiting ring (11), and the plurality of threaded holes (19) are respectively connected to the corresponding limiting grooves (15).

9. The nut assembly with a predetermined locking torque according to claim 8, characterized in that: The inner thread of the internal thread column (18) is threadedly mounted with a bolt (2), and a plurality of connection grooves are provided on the top of the bolt (2). The inner sides of the plurality of limiting grooves (15) are all clamped with corresponding limiting metal blocks (16), and the plurality of limiting metal blocks (16) are respectively adapted to the corresponding connection grooves.

10. The nut assembly with a predetermined locking torque according to claim 9, characterized in that: The tops of the plurality of limiting metal blocks (16) are each provided with a through hole, and the plurality of limiting threaded rods (17) are slidably installed in the plurality of through holes, and the plurality of limiting threaded rods (17) are respectively adapted to the corresponding threaded holes (19).

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