Conical nut

Abstract

The utility model discloses a conical nut, including nut main part, mounting groove, arc piece, slot, screwing tool, the nut main part is in big and small cone frustum shape, the top end of nut main part is provided with the mounting groove, the groove bottom of mounting groove is provided with main threaded hole, the main threaded hole passes through nut main part, the mounting groove is internally provided with a hold-down ring, the main threaded hole passes through the nut main part, and the hold-down ring is provided with an arc piece. The nut body, the installation groove, the main threaded hole and the pressing ring are located on the same vertical axis, the inner diameter of the pressing ring is larger than that of the main threaded hole, a plurality of auxiliary pieces are clamped between the pressing ring and the groove bottom of the installation groove, one end of each auxiliary piece is connected with an arc-shaped piece, the auxiliary pieces and the arc-shaped pieces are of an integrated structure, and the arc-shaped pieces extend upwards from the bottom end of the pressing ring. According to the utility model, the arc-shaped sheet is arranged on the conical nut, so that the conical nut can be propped by the arc-shaped sheet when the conical nut tends to loosen after being screwed on the screw rod, and the conical nut is not easy to loosen.

Description

[Technical field]

[0001] The utility model relates to the technical field of fasteners, in particular to the technical field of conical nuts. [Background technology]

[0002] The conical nut is a commonly used fastener, which can be used to put a large diameter cylindrical body on a relatively small diameter shaft with a screw section, and ensure that the cylindrical body and the shaft are coaxial. The existing conical nut is easy to loosen due to vibration and other reasons after tightening, and it is difficult to tighten because the outer surface of the conical nut is relatively smooth. [Contents of the utility model]

[0003] The utility model aims to solve the problems in the prior art and provides a tapered nut which can be easily tightened and not easily loosened.

[0004] To achieve the above-mentioned purpose, the utility model proposes a conical nut, including a nut body, a mounting groove, an arc-shaped piece, a slot, and a screwing tool. The nut body is in the shape of a truncated cone with a larger top and a smaller bottom. A mounting groove is provided at the top of the nut body, and a main threaded hole is provided at the bottom of the mounting groove. The main threaded hole runs through the nut body. A clamping ring is installed in the mounting groove. The nut body, the mounting groove, the main threaded hole, and the clamping ring are located on the same vertical axis. The inner diameter of the clamping ring is larger than the inner diameter of the main threaded hole. A plurality of auxiliary pieces are sandwiched between the clamping ring and the bottom of the mounting groove. An arc-shaped piece is connected to one end of the auxiliary piece. The auxiliary piece and the arc-shaped piece are An integrated structure, an arc-shaped piece extends upward from the bottom end of the clamping ring, the center of the arc-shaped piece is located on the side of the arc-shaped piece close to the axis of the main threaded hole, the arc-shaped piece gradually approaches the axis of the main threaded hole from bottom to top, the distance between the top end of the arc-shaped piece and the axis of the main threaded hole is less than the radius of the main threaded hole, the top end of the nut body is provided with two vertically arranged slots, the slots are symmetrically located on both sides of the main threaded hole, a screwing tool is inserted into the slot, the screwing tool consists of a first rod body and a second rod body, the first rod body is vertically inserted into the slot, the first rod body is adapted to the slot, the second rod body is fixed to the top end of the first rod body, and the second rod body is horizontally arranged.

[0005] Preferably, the clamping ring is installed in the mounting groove by means of a plurality of screws, the screws pass through the clamping ring and are screwed into the bottom wall of the mounting groove, and each auxiliary sheet is passed through by at least one screw.

[0006] Preferably, the first rod body is a square rod, and the second rod body is a round rod.

[0007] Preferably, there are two arc-shaped pieces, and the two arc-shaped pieces are symmetrically distributed on both sides of the main threaded hole.

[0008] The beneficial effects of the utility model are as follows: the utility model arranges an arc piece on the conical nut so that when the conical nut tends to loosen after being screwed on the screw rod, the arc piece can be used to resist it, making the conical nut not easy to loosen; the slot cooperates with the screwing tool to make the conical nut easy to screw, making the disassembly and assembly of the conical nut convenient.

[0009] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

[0010] Figure 1 It is the front view of the conical nut of the utility model;

[0011] Figure 2 It is a top view of the conical nut of the utility model.

[0012] In the figure: 1-nut body, 2-pressure ring, 3-auxiliary plate, 4-tightening tool, 10-main threaded hole, 11-installation groove, 12-slot, 20-screw, 30-arc plate, 41-first rod body, 42-second rod body. [Specific implementation method]

[0013] See also Figure 1 , Figure 2 The utility model conical nut comprises a nut body 1, a mounting groove 11, an arc-shaped piece 30, a slot 12, and a screwing tool 4. The nut body 1 is in the shape of a truncated cone with a larger top and a smaller bottom. A mounting groove 11 is provided at the top of the nut body 1. A main threaded hole 10 is provided at the bottom of the mounting groove 11. The main threaded hole 10 passes through the nut body 1. A clamping ring 2 is installed in the mounting groove 11. The nut body 1, the mounting groove 11, the main threaded hole 10, and the clamping ring 2 are located on the same vertical axis. The inner diameter of the clamping ring 2 is larger than the inner diameter of the main threaded hole 10. A plurality of auxiliary pieces 3 are sandwiched between the clamping ring 2 and the bottom of the mounting groove 11. The auxiliary piece 3 is connected to an arc-shaped piece 30 at one end. The auxiliary piece 3 and the arc-shaped piece 30 are an integrated structure. 30 extends upward from the bottom end of the clamping ring 2, the center of the arc piece 30 is located on the side of the arc piece 30 close to the axis of the main threaded hole 10, the arc piece 30 gradually approaches the axis of the main threaded hole 10 from bottom to top, the distance between the top of the arc piece 30 and the axis of the main threaded hole 10 is less than the radius of the main threaded hole 10, the top of the nut body 1 is provided with two vertically arranged slots 12, the slots 12 are symmetrically located on both sides of the main threaded hole 10, a screwing tool 4 is inserted into the slot 12, the screwing tool 4 consists of a first rod body 41 and a second rod body 42, the first rod body 41 is vertically inserted into the slot 12, the first rod body 41 is adapted to the slot 12, the second rod body 42 is fixed to the top of the first rod body 41, and the second rod body 42 is horizontally arranged.

[0014] In order to ensure that the auxiliary sheet 3 does not slide out from the bottom of the clamping ring 2, the clamping ring 2 is installed in the mounting groove 11 by means of a plurality of screws 20. The screws 20 pass through the clamping ring 2 and are screwed into the bottom wall of the mounting groove 11. Each auxiliary sheet 3 is passed through by at least one screw 20.

[0015] In order to make the two second rod bodies 42 symmetrically distributed on both sides of the nut body 1 , the first rod body 41 is a square rod, and the second rod body 42 is a round rod.

[0016] In order to enable the arc-shaped piece 30 to symmetrically clamp the screw rod, the arc-shaped piece 30 is provided with two pieces, and the two arc-shaped pieces 30 are symmetrically distributed on both sides of the main threaded hole 10 .

[0017] Working process of this utility model:

[0018] During the working process of the conical nut of the utility model, taking the conical nut being screwed onto a screw rod from top to bottom as an example, the nut body 1 is initially screwed onto the screw rod, and then two screwing tools 4 are respectively inserted into two slots 12, and then the nut body 1 is tightened by pulling the two screwing tools 4, and after tightening, the end of the arc-shaped piece 30 is embedded into the thread of the screw rod, and then the screwing tool 4 is removed. When the nut body 1 tends to loosen, the nut body 1 tends to move upward, and at this time, since the arc-shaped piece 30 is blocked by the external thread on the screw rod, the arc-shaped piece 30 will hinder the upward movement of the nut body 1, so that the nut body 1 cannot rotate, so that the nut body 1 has a good anti-loosening effect.

[0019] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. Conical nut, characterized in that: The invention comprises a nut body (1), a mounting groove (11), an arc-shaped sheet (30), a slot (12), and a screwing tool (4). The nut body (1) is in the shape of a truncated cone with a larger top and a smaller bottom. A mounting groove (11) is provided at the top of the nut body (1). A main threaded hole (10) is provided at the bottom of the mounting groove (11). The main threaded hole (10) passes through the nut body (1). A clamping ring (2) is installed in the mounting groove (11). The nut body (1), the mounting groove (11), the main threaded hole (10), and the clamping ring (2) are located on the same vertical axis. The inner diameter of the clamping ring (2) is larger than the inner diameter of the main threaded hole (10). A plurality of auxiliary sheets (3) are sandwiched between the clamping ring (2) and the bottom of the mounting groove (11). One end of the auxiliary sheet (3) is connected to the arc-shaped sheet (30). The auxiliary sheet (3) and the arc-shaped sheet (30) are an integrated structure. The arc-shaped piece (30) extends upward from the bottom end of the clamping ring (2), the center of the arc-shaped piece (30) is located on the side of the arc-shaped piece (30) close to the axis of the main threaded hole (10), the arc-shaped piece (30) gradually approaches the axis of the main threaded hole (10) from bottom to top, and the distance between the top end of the arc-shaped piece (30) and the axis of the main threaded hole (10) is smaller than the radius of the main threaded hole (10). The top end of the nut body (1) is provided with two vertically arranged slots (12), the slots (12) are symmetrically arranged on both sides of the main threaded hole (10), and a screwing tool (4) is inserted into the slots (12), and the screwing tool (4) is composed of a first rod body (41) and a second rod body (42), the first rod body (41) is vertically inserted into the slots (12), the first rod body (41) is adapted to the slots (12), and the second rod body (42) is fixed at the top end of the first rod body (41), and the second rod body (42) is arranged horizontally.

2. The tapered nut according to claim 1, characterized in that: The clamping ring (2) is installed in the installation groove (11) by means of a plurality of screws (20). The screws (20) pass through the clamping ring (2) and are screwed into the bottom wall of the installation groove (11). Each auxiliary plate (3) is penetrated by at least one screw (20).

3. The tapered nut according to claim 1, characterized in that: The first rod body (41) is a square rod, and the second rod body (42) is a round rod.

4. The tapered nut according to claim 1, characterized in that: There are two arc-shaped sheets (30), and the two arc-shaped sheets (30) are symmetrically distributed on both sides of the main threaded hole (10).

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