Lightweight lock nut

Abstract

The utility model discloses a light -duty lock nut, including nut body, flange, screw hole and arc -shaped groove, the lower end surface of nut body is connected with the flange, the center of flange and nut body all is equipped with the screw hole of intercommunication, the outer circumferential surface of nut body is set up with a plurality of arc -shaped grooves, the number of arc -shaped groove has six, six arc -shaped grooves are equidistant annular distribution, the recess is seted up in the both sides of nut body, the recess is through the inside of nut body, and is equipped with the anti -loose subassembly on the recess, the anti -loose subassembly includes fixed seat, screw rod, screw block, fixed link, sliding block, connecting rod and arc -shaped fixed plate, the fixed seat has two, two fixed seat all are located in recess, the utility model discloses set up with a plurality of arc -shaped grooves, reduces the overall production material of nut on one side, saves the cost, guarantees the structure strength while reducing the weight significantly on the other side.

Description

Technical Field

[0001] This utility model relates to the technical field of fasteners, and in particular to the technical field of a lightweight anti-loosening nut. Background Technology

[0002] A nut is a component that is screwed onto a bolt or threaded rod to secure a fastener; it is an essential element in all manufacturing machinery.

[0003] The nuts are usually hexagonal nuts. These nuts are easy to damage the corners when disassembling and are not suitable for reuse. Pentagonal nuts are used for theft prevention. These nuts require a socket wrench to disassemble, but the strength of the five corners of the wrench is not enough and the socket head is easily damaged.

[0004] To address the problems mentioned above, for example, application number CN200920248148.1 discloses a novel nut. This nut has a circular outer circumference with 3-5 grooves evenly distributed around it. The bottom surface has serrated grooves. The bottom surface of the nut is connected to the edge, and the grooves are semi-circular. When using this nut, the mating plate can be circular, with a protrusion at the corresponding semi-circular groove. Because there are no sharp edges on the outer circumference, the tool and nut will not wear off or become disengaged during disassembly, and the nut will not be damaged. The wrench is also easy to make. The serrated grooves on the bottom surface of the nut can increase the friction between it and the fixed object, preventing the nut from loosening and playing a role in stopping it from moving.

[0005] However, the connection strength of the nut in the above structure is low, and the lack of a notch increases the overall weight of the equipment after the nut is assembled onto the machine.

[0006] To address the problems mentioned above, for example, application number CN202121968480.2 discloses a lightweight nut, including a base plate with a central through hole, an annular connector on the top of the base plate, an internal threaded hole inside the annular connector, several arc-shaped grooves spaced apart on the outer surface of the annular connector, and reinforcing protrusions between adjacent arc-shaped grooves on the outer surface of the annular connector. The front and rear openings of the internal threaded hole of the annular connector are rounded. By increasing the area of ​​the connecting surface through the base plate, the stability and strength of the nut connection are increased. By setting notches and reinforcing protrusions on the annular connector, the material used is reduced compared to traditional nuts while maintaining the same strength, thus achieving the effect of reducing the weight of the nut and reducing the impact of the overall mechanical weight of the nut.

[0007] However, the above structure still has the following drawbacks: The above-mentioned structure has a low anti-loosening effect, which makes the nut easy to loosen after connection, thus affecting the performance of the nut. Summary of the Invention

[0008] The purpose of this invention is to solve the problems in the prior art and to propose a lightweight anti-loosening nut that can achieve both weight reduction and improved anti-loosening effect.

[0009] To achieve the above objectives, this utility model proposes a lightweight anti-loosening nut, comprising a nut body, a flange, a threaded hole, and an arc-shaped groove; the lower end face of the nut body is connected to the flange, and the center of the flange and the nut body are provided with a threaded hole that communicates with each other; a plurality of arc-shaped grooves are formed on the outer circumferential surface of the nut body.

[0010] Preferably, there are six arc-shaped grooves, which are distributed in a ring at equal intervals.

[0011] Preferably, the nut body has grooves on both sides, the grooves penetrate the interior of the nut body, and anti-loosening components are provided on the grooves.

[0012] Preferably, the anti-loosening component includes a fixed seat, a lead screw, a threaded block, a fixed rod, a sliding block, a connecting rod, and an arc-shaped fixing plate. There are two fixed seats, both of which are located in a groove. The lead screw is rotated between the two fixed seats. A threaded block is threadedly connected to the outer wall of the lead screw. Fixed rods are provided on both sides of the threaded block. A sliding block is connected to the end of each fixed rod. A connecting rod is installed on the side of the sliding block facing the threaded hole. The ends of the two connecting rods are connected to the arc-shaped fixing plate.

[0013] Preferably, one end of the lead screw passes through the side wall of one of the fixed seats and has a rotating groove.

[0014] Preferably, the groove has sliding grooves on both sides, and the sliding block is slidably disposed in the sliding grooves.

[0015] Preferably, the arc-shaped fixing plate is located inside the threaded hole, and the contact surface of the arc-shaped fixing plate is provided with several serrations.

[0016] The beneficial effects of this utility model are: 1. By opening several arc-shaped grooves, this utility model reduces the overall production material of the nut, saving costs, and significantly reduces weight while ensuring structural strength. 2. By adding an anti-loosening component, this utility model, on the one hand, drives the arc-shaped fixing plate to radially press the screw through the screw drive, so that the saw teeth provide directional frictional resistance, effectively resisting loosening caused by vibration. On the other hand, most of the components of the anti-loosening component are accommodated in the groove, making full use of the internal space of the nut and avoiding increasing the external volume. Attached Figure Description

[0017] Figure 1 This is a front view of a lightweight anti-loosening nut according to this utility model; Figure 2 This is a back view of a lightweight anti-loosening nut according to this utility model; Figure 3 This is a cross-sectional view of a lightweight anti-loosening nut according to the present invention; Figure 4 This is a schematic diagram of an anti-loosening component for a lightweight anti-loosening nut according to this utility model; In the diagram: 1-nut body, 2-flange, 3-threaded hole, 4-arc groove, 5-groove, 6-anti-loosening component, 601-fixed seat, 602-screw rod, 6021-rotary groove, 603-threaded block, 604-fixed rod, 605-sliding block, 606-connecting rod, 607-arc fixed plate, 6071-serration, 7-slide groove. Detailed Implementation

[0018] Example 1 See Figure 1 This utility model discloses a lightweight anti-loosening nut, comprising a nut body 1, a flange 2, a threaded hole 3, and an arc-shaped groove 4. The flange 2 is connected to the lower end face of the nut body 1. The flange 2 and the nut body 1 are both provided with a threaded hole 3 at their centers. Several arc-shaped grooves 4 are formed on the outer circumference of the nut body 1. The flange 2 is located on the lower end face of the nut body 1 to increase the contact area and disperse the stress on the connection surface. The threaded hole 3 passes through the nut body 1 and the flange 2 for matching screws or other fasteners for screwing. The arc-shaped grooves 4 are formed on the outer circumference of the nut body 1 to reduce the overall weight of the nut body 1.

[0019] See Figure 1 There are six arc-shaped grooves 4, which are distributed in a ring at equal intervals. By distributing the arc-shaped grooves 4 in a ring, the overall production material of the nut is reduced, saving costs, while ensuring structural strength and significantly reducing weight.

[0020] Example 2 See Figure 3 The nut body 1 has grooves 5 on both sides, the grooves 5 penetrate the interior of the nut body 1, and the grooves 5 are provided with anti-loosening components 6. The grooves 5 further reduce the weight of the nut body 1, and most of the components of the anti-loosening components 6 are accommodated in the grooves 5, making full use of the internal space of the nut body 1 and avoiding increasing the external volume.

[0021] See Figure 4The anti-loosening component 6 includes a fixed base 601, a lead screw 602, a threaded block 603, a fixed rod 604, a sliding block 605, a connecting rod 606, and an arc-shaped fixing plate 607. There are two fixed bases 601, both located within the groove 5. The lead screw 602 is rotatably mounted between the two fixed bases 601. A threaded block 603 is threadedly connected to the outer wall of the lead screw 602. Fixed rods 604 are provided on both sides of the threaded block 603. A sliding block 605 is connected to the end of each fixed rod 604. A connecting rod 606 is installed on the side of each sliding block 605 facing the threaded hole 3. The ends of both connecting rods 606 are connected to the arc-shaped fixing plate 607. The two fixed bases 601 support both ends of the lead screw 602. The lead screw 602 converts rotational motion into linear displacement through threaded transmission, thereby driving the threaded block 603 to move. The threaded block 603 engages with the lead screw 602, converting the rotational motion of the lead screw 602 into its own axial movement. The fixed rod 604 is symmetrically fixed to both sides of the threaded block 603 to transmit the axial thrust of the threaded block 603. The sliding block 605 is connected to the end of the fixed rod 604 and slides directionally in the groove 7 after being thrust. The connecting rod 606 is used to drive the arc-shaped fixed plate 607 to move, thereby clamping and fixing the screw. Therefore, when the lead screw 602 rotates, the lead screw 602 and the threaded block 603 form a threaded pair, driving the threaded block 603 to move axially. The threaded block 603 pushes the sliding block 605 to slide synchronously in the groove 7 of the groove 5 through the fixed rods 604 on both sides. The sliding block 605 pulls the arc-shaped fixed plate 607 radially towards the center of the threaded hole 3 through the connecting rod 606, so that its serrated surface 6071 presses against the side wall of the screw after installation, thereby increasing the frictional resistance to achieve the anti-loosening effect.

[0022] See Figure 4 One end of the lead screw 602 passes through the side wall of one of the fixed seats 601 and has a rotating groove 6021 for inserting a tool into the rotating groove 6021 to drive the lead screw 602 to rotate.

[0023] See Figure 4 The groove 5 has sliding grooves 7 on both sides, and the sliding block 605 is slidably disposed in the sliding groove 7. The sliding groove 7 is used to constrain the movement trajectory of the sliding block 605.

[0024] See Figure 3 The arc-shaped fixing plate 607 is located inside the threaded hole 3, and the contact surface of the arc-shaped fixing plate 607 is provided with a number of serrations 6071. The serrations 6071 are used to enhance the frictional resistance between the screw and the bolt, thereby further improving the locking effect.

[0025] The working process of this utility model: In the initial state of operation, the arc-shaped fixing plate 607 of this utility model maintains a distance from the inner wall of the threaded hole 3. When locking is required, a tool is inserted into the groove 6021 at the end of the lead screw 602 to drive the lead screw 602 to rotate. After the lead screw 602 rotates, the lead screw 602 and the threaded block 603 form a threaded pair, driving the threaded block 603 to move axially. The threaded block 603 pushes the sliding block 605 to slide synchronously in the groove 7 of the groove 5 through the fixing rods 604 on both sides. The sliding block 605 pulls the arc-shaped fixing plate 607 to move radially towards the center of the threaded hole 3 through the connecting rod 606, so that its serrated surface 6071 presses against the side wall of the screw after installation, thereby increasing the frictional resistance to achieve the anti-loosening effect. When the lead screw 602 is rotated in the opposite direction, the locking state can be released.

[0026] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0027] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A lightweight anti-loosening nut, characterized in that: It includes a nut body (1), a flange (2), a threaded hole (3) and an arc groove (4); the lower end face of the nut body (1) is connected to the flange (2), and the center of the flange (2) and the nut body (1) are provided with a threaded hole (3) that communicates with each other. Several arc grooves (4) are opened on the outer circumference of the nut body (1).

2. The lightweight anti-loosening nut as described in claim 1, characterized in that: There are six arc-shaped grooves (4), and the six arc-shaped grooves (4) are distributed in a ring with equal spacing.

3. The lightweight anti-loosening nut as described in claim 1, characterized in that: The nut body (1) has grooves (5) on both sides, the grooves (5) penetrate the interior of the nut body (1), and anti-loosening components (6) are provided on the grooves (5).

4. A lightweight anti-loosening nut as described in claim 3, characterized in that: The anti-loosening component (6) includes a fixed seat (601), a lead screw (602), a threaded block (603), a fixed rod (604), a sliding block (605), a connecting rod (606), and an arc-shaped fixing plate (607). There are two fixed seats (601), both of which are located in the groove (5). The lead screw (602) is rotated between the two fixed seats (601). The outer wall of the lead screw (602) is threadedly connected to the threaded block (603). The two side walls of the threaded block (603) are provided with fixed rods (604). The ends of the fixed rods (604) are connected to the sliding blocks (605). The sliding blocks (605) are connected to the side facing the threaded hole (3) with the connecting rods (606). The ends of the two connecting rods (606) are connected to the arc-shaped fixing plate (607).

5. A lightweight anti-loosening nut as described in claim 4, characterized in that: One end of the lead screw (602) passes through the side wall of one of the fixed seats (601) and has a rotating groove (6021).

6. A lightweight anti-loosening nut as described in claim 4, characterized in that: The groove (5) has sliding grooves (7) on both sides, and the sliding block (605) is slidably disposed in the sliding groove (7).

7. A lightweight anti-loosening nut as described in claim 4, characterized in that: The arc-shaped fixing plate (607) is located inside the threaded hole (3), and the contact surface of the arc-shaped fixing plate (607) is provided with a number of serrations (6071).

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