Bidirectional self-embedded high-head knurled nut

Abstract

The utility model relates to the field of knurled nuts, in particular to a bidirectional self-embedded high-head knurled nut which comprises a first nut, a second nut, an internal locking mechanism and a positioning mechanism, an embedded screw rod is arranged in the first nut and the second nut, the internal locking mechanism for respectively locking the first nut and the second nut is arranged in the center of the embedded screw rod, and the positioning mechanism is arranged in the first nut and the second nut. The first nut and the second nut are respectively twisted to enable the first nut and the second nut to oppositely move on the outer wall of the embedded screw in a meshed mode, and when the first nut and the second nut move to the two side walls of the center ring, the clamping plate is driven to stretch out leftwards from the inside of the sliding groove in a meshed mode, so that the clamping plate is clamped in the sliding groove. The left ends of the clamping plates abut against the right side wall of the first nut, the right side wall of the first nut is made of frosted materials, static friction between the clamping plates is achieved, looseness is avoided, and the stability of the nut is improved.

Description

Technical Field

[0001] The utility model relates to the field of knurled nuts, in particular to a bidirectional self-embedded high-head knurled nut. Background Technique

[0002] A nut is a screw cap, a part used to tighten together with a bolt or a screw rod. It is an element that must be used in all manufacturing machinery. According to different materials, it is divided into several major types such as carbon steel, stainless steel, non-ferrous metals, etc. In the field of machining, CNC tool holders and tool bars are widely used, and the clamping devices such as nuts and collets supporting them are essential parts for clamping tools. However, due to the long-term replacement of clamping tools, the nuts need to be frequently disassembled and installed. Over time, the nuts will wear and lose their accuracy. The nuts that have lost their accuracy will automatically loosen after meshing and installation, so a structure with an anti-loosening effect needs to be added to the nuts. Among them, the knurled nut, as a connecting part, is usually used in hardware products such as injection molding, hardware springs, connecting parts, and fasteners.

[0003] When the existing knurled nut is worn during use, first, after the first convex part in contact with the user is worn, there is still the second convex part to increase the friction force, and it is not easy for the user to slip when turning the knurled nut, which increases the service life of the knurled nut.

[0004] However, after the bidirectional nut bodies of the existing embedded nuts are meshed, they do not have a locking structure, and loosening and loosening will occur after an external force is applied, resulting in unstable installation of the nuts and affecting the stability of the installation. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a bidirectional self-embedded high-head knurled nut, which is used to solve the problem that after the bidirectional nut bodies of the existing embedded nuts are meshed, they do not have a locking structure, and loosening and loosening will occur after an external force is applied, resulting in unstable installation of the nuts and affecting the stability of the installation.

[0006] Therefore, the utility model provides a bidirectional self-embedded high-head knurled nut, which includes a first nut, a second nut, an internal locking mechanism and a positioning mechanism. An embedded screw rod is jointly arranged inside the first nut and the second nut. An internal locking mechanism for respectively locking the first nut and the second nut is arranged at the center of the embedded screw rod. A positioning mechanism for mutually locking the second nut with the first nut is arranged inside the edge of the second nut.

[0007] Preferably: The internal locking mechanism includes a central ring, the central ring is installed on the outer wall of the center of the embedded screw rod, and embedded rings are arranged on both side walls of the central ring.

[0008] Preferably, the positioning mechanism includes an inner groove which is formed inside the edge of the second nut. A first bevel gear is installed on the vertical inner wall of the inner groove. The outer end of the first bevel gear is connected to a knob. A second bevel gear is installed on the horizontal inner wall of the inner groove. A chute is formed on the horizontal outer wall of the inner groove. A screw rod is installed in the chute, and a clamping plate is sleeved on the outer wall of the screw rod.

[0009] Preferably, the tooth patterns on the surface of the embedded ring are meshed with the threads on the inner walls of the first nut and the second nut.

[0010] Preferably, the first bevel gear is meshed with the second bevel gear.

[0011] Preferably, the second bevel gear is connected to the screw rod.

[0012] Preferably, the cross-sectional dimension of the clamping plate matches the cross-sectional dimension of the chute.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] In the present utility model, the first nut and the second nut are respectively twisted to move meshingly towards each other on the outer wall of the embedded screw rod. When both the first nut and the second nut move to both side walls of the central ring, the tooth rings arranged on the horizontal outer walls of the first nut and the second nut are respectively engaged with the embedded rings on both sides of the central ring, thereby realizing the locking between the nut and the embedded screw rod. The knob is twisted to drive the first bevel gear to rotate and mesh with the second bevel gear to drive the second bevel gear to rotate, driving the connected screw rod to rotate, and meshing to drive the clamping plate to extend leftward from the chute, so that the left end of the clamping plate abuts against the right side wall of the first nut. The right side wall of the first nut is made of frosted material to make the clamping plates have static friction with each other, avoiding loosening and improving the stability of the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a perspective view of the present utility model;

[0016] Figure 2 is a front sectional view of the positioning mechanism of the present utility model;

[0017] Figure 3 is the present utility model Figure 2 partial enlarged view at A in;

[0018] In the figure:

[0019] 1. First nut; 2. Second nut; 3. Embedded screw rod; 401. Central ring; 402. Embedded ring; 501. Inner groove; 502. First bevel gear; 503. Knob; 504. Second bevel gear; 505. Chute; 506. Screw rod; 507. Clamping plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Embodiment 1

[0022] Please refer to Figures 1-3 , the figure shows a preferred embodiment of the present utility model, a round head nut of a fastener convenient for cold heading, including a first nut 1, a second nut 2, an internal locking mechanism and a positioning mechanism. An embedded screw 3 is jointly arranged inside the first nut 1 and the second nut 2. An internal locking mechanism for respectively locking the first nut 1 and the second nut 2 is arranged at the center of the embedded screw 3. A positioning mechanism for mutually locking the second nut 2 with the first nut 1 is arranged inside the edge of the second nut 2.

[0023] It should be noted that: the internal locking mechanism and the positioning mechanism in this solution improve the locking stability of the nut.

[0024] Among them, the internal locking mechanism includes a central ring 401, and the central ring 401 is installed on the outer wall of the center of the embedded screw 3. Embedded rings 402 are arranged on both side walls of the central ring 401.

[0025] It should be noted that: in this solution, the first nut 1 and the second nut 2 are respectively twisted to move meshingly towards each other on the outer wall of the embedded screw 3. When both the first nut 1 and the second nut 2 move to both side walls of the central ring 401, the tooth rings arranged on the transverse outer walls of the first nut 1 and the second nut 2 are mutually buckled with the embedded rings 402 on both sides of the central ring 401, thereby realizing the locking between the nut and the embedded screw 3.

[0026] Among them, the tooth patterns on the surface of the embedded ring 402 are meshed with the threads on the inner walls of the first nut 1 and the second nut 2.

[0027] It should be noted that: in this solution, the first nut 1 and the second nut 2 are respectively twisted to move meshingly towards each other on the outer wall of the embedded screw 3. When both the first nut 1 and the second nut 2 move to both side walls of the central ring 401, the tooth rings arranged on the transverse outer walls of the first nut 1 and the second nut 2 are mutually buckled with the embedded rings 402 on both sides of the central ring 401, thereby realizing the locking between the nut and the embedded screw 3.

[0028] Embodiment 2

[0029] Please refer to Figures 1-3, the positioning mechanism includes an inner groove 501 which is opened inside the edge of the second nut 2. A first bevel gear 502 is installed on the vertical inner wall of the inner groove 501. The outer end of the first bevel gear 502 is connected to a knob 503. A second bevel gear 504 is installed on the horizontal inner wall of the inner groove 501. A chute 505 is opened on the horizontal outer wall of the inner groove 501. A screw 506 is installed in the chute 505, and a clamping plate 507 is sleeved on the outer wall of the screw 506.

[0030] It should be noted that: in this solution, turning the knob 503 drives the first bevel gear 502 to rotate and mesh, driving the second bevel gear 504 to rotate, driving the connected screw 506 to rotate, and meshing to drive the clamping plate 507 to extend leftward from the chute 505, so that the left end of the clamping plate 507 abuts against the right side wall of the first nut 1. The right side wall of the first nut 1 is made of a frosted material to make the clamping plates 507 have static friction with each other to avoid loosening.

[0031] Wherein, the first bevel gear 502 and the second bevel gear 504 mesh with each other.

[0032] It should be noted that: this solution locks or loosens efficiently.

[0033] Wherein, the second bevel gear 504 is connected to the screw 506.

[0034] It should be noted that: this solution makes locking or loosening more convenient.

[0035] Wherein, the cross-sectional dimension of the clamping plate 507 matches the cross-sectional dimension of the chute 505.

[0036] It should be noted that: this solution locks stably.

[0037] The working process and principle of the present utility model: turn the first nut 1 and the second nut 2 respectively, so that they move meshingly towards each other on the outer wall of the embedded screw 3. When both the first nut 1 and the second nut 2 move to both side walls of the central ring 401, the tooth rings provided on the horizontal outer walls of the first nut 1 and the second nut 2 are mutually engaged with the embedded rings 402 on both sides of the central ring 401, thereby realizing the locking between the nut and the embedded screw 3. Turn the knob 503 to drive the first bevel gear 502 to rotate and mesh, driving the second bevel gear 504 to rotate, driving the connected screw 506 to rotate, and meshing to drive the clamping plate 507 to extend leftward from the chute 505, so that the left end of the clamping plate 507 abuts against the right side wall of the first nut 1. The right side wall of the first nut 1 is made of a frosted material to make the clamping plates 507 have static friction with each other to avoid loosening.

[0038] The above content further elaborates on the present utility model in conjunction with specific embodiments. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model pertains, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, and all should be regarded as falling within the protection scope determined by the claims submitted for the present utility model.

Claims

1. Bidirectional self-embedded high head knurled nut, characterized by: The invention comprises a first nut (1), a second nut (2), an internal locking mechanism and a positioning mechanism, wherein the first nut (1) and the second nut (2) are provided with an internally embedded screw (3) in common, the center of the internally embedded screw (3) is provided with an internal locking mechanism for locking the first nut (1) and the second nut (2) respectively, and the edge of the second nut (2) is provided with a positioning mechanism for mutually locking the second nut (2) and the first nut (1).

2. The bidirectional self-embedded high-head knurled nut according to claim 1, characterized in that: The inner locking mechanism comprises a center ring (401), the center ring (401) is mounted on the center outer wall of the embedded screw (3), and both side walls of the center ring (401) are provided with embedded rings (402).

3. The bidirectional self-embedded high-head knurled nut according to claim 1, characterized in that: The positioning mechanism comprises an inner groove (501), the inner groove (501) is arranged inside the edge of the second nut (2), a first bevel gear (502) is installed on the vertical inner wall of the inner groove (501), a knob (503) is connected to the outer end of the first bevel gear (502), a second bevel gear (504) is installed on the transverse inner wall of the inner groove (501), a slide groove (505) is arranged on the transverse outer wall of the inner groove (501), a screw rod (506) is installed in the slide groove (505), and a clamping plate (507) is sleeved on the outer wall of the screw rod (506).

4. The bidirectional self-inserting high-head knurled nut according to claim 2, characterized in that: The tooth patterns on the surface of the insert ring (402) mesh with the threads on the inner walls of the first nut (1) and the second nut (2).

5. The bidirectional self-embedded high-head knurled nut according to claim 3, characterized in that: The first bevel gear (502) and the second bevel gear (504) are meshed with each other.

6. The bidirectional self-inserting high-head knurled nut according to claim 3, characterized in that: The second bevel gear (504) is connected to the screw (506).

7. The bidirectional self-inserting high-head knurled nut according to claim 3, characterized in that: The cross-sectional dimensions of the clamping plate (507) match the cross-sectional dimensions of the sliding groove (505).

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