Antiskid and anti-cracking carbon steel flange nut

Abstract

The utility model discloses an anti-skidding and anti-cracking carbon steel flange nut, which belongs to the technical field of nuts and comprises a flange nut body, a nut cover is arranged above the flange nut body, and the inner wall of the nut cover is matched with the outer wall of the flange nut body in an up-and-down sliding mode. Four second grooves are evenly formed in the top face of the flange nut body, a moving block is slidably connected into each second groove, and a linkage assembly is arranged between each moving block and the nut cover. The fastening device has the beneficial effects that in the fastening process, the bolt drives the nut cover to move upwards, the nut cover drives the corresponding moving blocks to be close to the bolt through the four linkage assemblies, the side face of the bolt is clamped, and the bolt is prevented from loosening. In the process that the nut cover drives the fixing plate to move upwards, the fixing plate drives the piston plate to move upwards, so that the pressure in the space defined by the sealing gasket, the flange nut body and the part is smaller than that of the outside, the friction force between the sealing gasket and the part is increased, and the fastening effect is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of nuts and relates to an anti-slip and anti-cracking carbon steel flange nut. Background Art

[0002] Flange nut is a nut with a wide flange on one end. It is also called washer nut, toothed nut, hexagonal flange nut, flange nut, etc. It is mostly used in pipe connections or workpieces that need to increase the contact surface of the nut.

[0003] In the Chinese patent with the announcement number CN219413194U, a flange nut is disclosed, and its technical scheme is as follows: it includes a nut seat, a threaded hole is formed through the nut seat, the lower end of the nut seat has a flange surface, a nut cover is provided above the nut seat, the nut cover is solid, the nut cover is arranged above the nut seat through a movable assembly, a screw groove corresponding to the threaded hole is provided at the lower end of the nut cover, the movable assembly includes a guide column fixedly connected below the nut cover, a guide hole matching the guide column is provided at the upper end of the nut seat, the nut cover is arranged on the nut seat through the cooperation of the guide column and the guide hole, a protective sleeve is fixedly connected between the nut cover and the nut seat, the guide column is located inside the protective sleeve, a limit assembly is provided in the guide hole, the guide column is connected to the nut seat through an elastic assembly, and a sealing assembly is provided below the nut seat. However, there are still the following disadvantages: the device is only provided with a waterproof nut cover, and the bolt and the nut seat are only connected by a simple thread, and after long-term use, looseness may occur, thereby affecting the fixing effect of the parts.

[0004] In the Chinese patent with the announcement number CN217207262U, a hexagonal flange kit anti-loosening nut is disclosed, and its technical scheme is as follows: it includes a bolt, the outer edge of the bolt is threadedly sleeved with a hexagonal flange, the top surface of the hexagonal flange is radially slidably connected to two mirror-symmetrical clamping plates, the bottom surface of the clamping plate is slidably connected with a connecting ring, the inner diameter of the connecting ring is rotatably connected to a sleeve, the sleeve is sleeved on the outer edge of the bolt, and the top surface of the bolt is provided with a plurality of equidistant annularly distributed positioning grooves, the positioning blocks are inserted in the positioning grooves, and the positioning blocks are fixedly connected to the inner wall of the sleeve. The top surface of the connecting ring is provided with two radially symmetrical sliding grooves, a spring is provided in the sliding groove, one end of the spring abuts against a slider, the slider is slidably connected in the sliding groove, the slider is fixedly connected to the bottom surface of the clamping plate, the bottom surface of the clamping plate is provided with an arc groove, and the slider is fixedly connected in the arc groove. However, there are still the following disadvantages: when using the device, the bolt is screwed into the hexagonal flange, the positioning block on the sleeve is aligned with the bolt and installed in the positioning groove, and the clamping block on the clamping plate is matched with the clamping groove to limit the rotation direction of the bolt. The operation process is relatively cumbersome and inconvenient to use.

[0005] In order to solve the above problems, the utility model proposes an anti-slip and anti-cracking carbon steel flange nut. Utility Model Content

[0006] In order to solve the problems existing in the background technology, the utility model proposes an anti-slip and anti-cracking carbon steel flange nut.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a non-slip and anti-cracking carbon steel flange nut, comprising a flange nut body, a nut cover is arranged above the flange nut body, and the inner wall of the nut cover and the outer wall of the flange nut body slide up and down; four second grooves are evenly opened on the top surface of the flange nut body, a moving block is slidably connected in each second groove, and a linkage component is arranged between each moving block and the nut cover.

[0008] Furthermore, each linkage assembly includes a fixed plate, a rack, a gear and a screw rod, and the fixed plate is fixedly connected to the top wall of the nut cover; four first grooves are opened on the top surface of the flange nut body, and the four first grooves correspond to the four second grooves one by one, and the upper ends of the first grooves are connected to the corresponding second grooves, and the fixed plate is slidably matched with the corresponding first grooves; one end of the screw rod is rotatably connected to the inner wall of the first groove, and the other end extends into the second groove and is threadedly connected to the moving block, the gear is located in the first groove and fixedly sleeved on the screw rod, the rack is fixedly connected to one side of the fixed plate, and the rack is meshed with the gear.

[0009] Furthermore, a sealing gasket is fixedly connected to the bottom surface of the flange nut body, and the sealing gasket is annular.

[0010] Furthermore, a thread is provided on the inner wall of the flange nut body, and the bolt cooperates with the thread of the inner wall of the flange nut body.

[0011] Furthermore, the upper end of the bolt is rotationally matched with the top wall of the nut cover.

[0012] Furthermore, the lower end of each first groove passes through the flange nut body, and the lower end of each fixing plate is fixedly connected to a piston plate, and the piston plate is sealingly and slidably connected to the corresponding first groove.

[0013] Compared with the prior art, the utility model has the following beneficial effects: in the process of fastening the two parts by the bolt and the flange nut body, the bolt drives the nut cover to move upward, and the nut cover drives the corresponding moving block to approach the bolt through four linkage components, clamps the side of the bolt, and prevents the bolt from loosening. At the same time, the nut cover covers the connection between the flange nut body and the bolt, which can effectively prevent rainwater and other external factors from eroding the connection, thereby increasing the service life.

[0014] In the process of the nut cover driving the fixed plate to move upward, the fixed plate drives the piston plate to move upward, so that the pressure in the space surrounded by the sealing gasket, the flange nut body and the parts is lower than that in the outside world, thereby increasing the friction between the sealing gasket and the parts, preventing the flange nut body and the parts from sliding relative to each other, and further improving the fastening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of Example 1 of the utility model;

[0016] Figure 2 This utility model Figure 1 A magnified view of part A;

[0017] Figure 3 It is a cross-sectional view of Example 2 of the present utility model.

[0018] In the figure: 1. flange nut body; 2. first groove; 3. fixed plate; 4. rack; 5. nut cover; 6. second groove; 7. moving block; 8. gear; 9. screw rod; 10. sealing gasket; 11. piston plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0020] like Figure 1-Figure 2 As shown, the technical solution adopted by the utility model is as follows: an anti-slip and anti-cracking carbon steel flange nut, comprising a flange nut body 1, the main body of the flange nut body 1 is made of carbon steel, with a high carbon content and high hardness, so as to achieve the purpose of anti-cracking. A sealing gasket 10 is fixedly connected to the bottom surface of the flange nut body 1, and the sealing gasket 10 is annular.

[0021] A nut cover 5 is provided above the flange nut body 1, and the inner wall of the nut cover 5 slides up and down with the outer wall of the flange nut body 1. A thread is provided on the inner wall of the flange nut body 1, and the bolt is threadedly engaged with the inner wall of the flange nut body 1. The upper end of the bolt is rotationally engaged with the top wall of the nut cover 5.

[0022] Four second grooves 6 are evenly formed on the top surface of the flange nut body 1 , and a moving block 7 is slidably connected in each second groove 6 .

[0023] A linkage assembly is provided between each moving block 7 and the nut cover 5. Each linkage assembly includes a fixed plate 3, a rack 4, a gear 8 and a screw 9. The upper end of the fixed plate 3 is fixedly connected to the top wall of the nut cover 5. Four first grooves 2 are provided on the top surface of the flange nut body 1. The four first grooves 2 correspond to the four second grooves 6 one by one, and the upper ends of the first grooves 2 are connected to the corresponding second grooves 6, and the fixed plate 3 is slidably matched with the corresponding first grooves 2. One end of the screw 9 is rotatably connected to the inner wall of the first groove 2, and the other end extends into the second groove 6 and is threadedly connected to the moving block 7. The gear 8 is located in the first groove 2 and is fixedly sleeved on the screw 9. The rack 4 is fixedly connected to one side of the fixed plate 3, and the rack 4 is meshed with the gear 8.

[0024] Working principle: To sum up, in the initial state, the moving block 7 is located on the side of the second groove 6 close to the first groove 2, and the nut cover 5 is sleeved on the flange nut body 1.

[0025] When using the device, a person places two parts to be fixed together so that the through holes for passing the bolts on the two parts overlap. Then the person places the flange nut body 1 above the through hole, passes the bolts through the bottom of the through hole, and inserts the bolts into the flange nut body 1. The sealing gasket 10 fits with the surface of the parts to prevent the flange nut body 1 from damaging the parts during the tightening process.

[0026] Then the personnel screw the bolts to gradually enter the flange nut body 1. When the upper end of the bolt contacts the top wall of the nut cover 5, the personnel continue to screw the bolts, and the upper end of the bolt and the top wall of the nut cover 5 rotate, pushing the nut cover 5 to move upward.

[0027] When the nut cover 5 moves upward, the corresponding moving blocks 7 are driven to approach the bolts through the four linkage components. Specifically, the nut cover 5 drives the fixing plate 3 to move upward, the fixing plate 3 drives the rack 4 to move upward, the rack 4 drives the gear 8 to rotate, the gear 8 drives the screw 9 to rotate, and the screw 9 drives the moving blocks 7 to move in the second groove 6 toward the bolt. Finally, the four moving blocks 7 clamp and fix the bolts, thereby preventing the bolts from loosening after long-term use and affecting the connection between parts. Example 2

[0028] like Figure 3 As shown, a non-slip and non-cracking carbon steel flange nut includes a flange nut body 1. The main body of the flange nut body 1 is made of carbon steel with a high carbon content and high hardness to achieve the purpose of crack prevention. A sealing gasket 10 is fixedly connected to the bottom surface of the flange nut body 1, and the sealing gasket 10 is annular.

[0029] A nut cover 5 is provided above the flange nut body 1, and the inner wall of the nut cover 5 slides up and down with the outer wall of the flange nut body 1. A thread is provided on the inner wall of the flange nut body 1, and the bolt is threadedly engaged with the inner wall of the flange nut body 1. The upper end of the bolt is rotationally engaged with the top wall of the nut cover 5.

[0030] Four second grooves 6 are evenly formed on the top surface of the flange nut body 1 , and a moving block 7 is slidably connected in each second groove 6 .

[0031] A linkage assembly is provided between each moving block 7 and the nut cover 5. Each linkage assembly includes a fixed plate 3, a rack 4, a gear 8 and a screw 9. The upper end of the fixed plate 3 is fixedly connected to the top wall of the nut cover 5. Four first grooves 2 are provided on the top surface of the flange nut body 1. The four first grooves 2 correspond to the four second grooves 6 one by one, and the upper ends of the first grooves 2 are connected to the corresponding second grooves 6, and the fixed plate 3 is slidably matched with the corresponding first grooves 2. One end of the screw 9 is rotatably connected to the inner wall of the first groove 2, and the other end extends into the second groove 6 and is threadedly connected to the moving block 7. The gear 8 is located in the first groove 2 and is fixedly sleeved on the screw 9. The rack 4 is fixedly connected to one side of the fixed plate 3, and the rack 4 is meshed with the gear 8.

[0032] The four first grooves 2 all penetrate the flange nut body 1 , and the lower end of each fixing plate 3 is fixedly connected to a piston plate 11 , and the piston plate 11 is sealingly and slidably connected to the inner wall of the corresponding first groove 2 .

[0033] Working principle: To sum up, in the initial state, the moving block 7 is located on the side of the second groove 6 close to the first groove 2, and the nut cover 5 is sleeved on the flange nut body 1.

[0034] When using the device, the personnel place two parts to be fixed together so that the through holes for passing the bolts on the two parts overlap. Then the personnel place the flange nut body 1 above the through hole, pass the bolts through the through hole from the bottom, and insert the bolts into the flange nut body 1. The sealing gasket 10 fits with the surface of the parts to prevent the flange nut body 1 from damaging the parts during the tightening process.

[0035] Then the personnel screw the bolts to gradually enter the flange nut body 1. When the upper end of the bolt contacts the top wall of the nut cover 5, the personnel continue to screw the bolts, and the upper end of the bolt and the top wall of the nut cover 5 rotate, pushing the nut cover 5 to move upward.

[0036] When the nut cover 5 moves upward, the corresponding moving blocks 7 are driven to approach the bolts through the four linkage components. Specifically, the nut cover 5 drives the fixing plate 3 to move upward, the fixing plate 3 drives the rack 4 to move upward, the rack 4 drives the gear 8 to rotate, the gear 8 drives the screw 9 to rotate, and the screw 9 drives the moving blocks 7 to move in the second groove 6 toward the bolt. Finally, the four moving blocks 7 clamp and fix the bolts, thereby preventing the bolts from loosening after long-term use and affecting the connection between parts.

[0037] At the same time, the four fixing plates 3 drive the corresponding piston plates 11 to slide upward in the corresponding first grooves 2, so that the pressure in the space surrounded by the sealing gasket 10, the parts and the flange nut body 1 is lower than that in the outside world, thereby increasing the friction between the sealing gasket 10 and the parts, preventing relative sliding between the flange nut body 1 and the parts, and further improving the fastening effect.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A non-slip and non-crack carbon steel flange nut, characterized in that: The invention comprises a flange nut body (1), a nut cover (5) is arranged above the flange nut body (1), and the inner wall of the nut cover (5) is slidably matched with the outer wall of the flange nut body (1) up and down; four second grooves (6) are evenly arranged on the top surface of the flange nut body (1), a moving block (7) is slidably connected in each second groove (6), and a linkage component is arranged between each moving block (7) and the nut cover (5).

2. The anti-slip and anti-cracking carbon steel flange nut according to claim 1, characterized in that: Each linkage assembly comprises a fixed plate (3), a rack (4), a gear (8) and a screw (9); the fixed plate (3) is fixedly connected to the top wall of the nut cover (5); the top surface of the flange nut body (1) is provided with four first grooves (2); the four first grooves (2) correspond to the four second grooves (6) one by one, and the upper ends of the first grooves (2) are connected to the corresponding second grooves (6); the fixed plate (3) and the corresponding first grooves (2) are slidably matched; one end of the screw (9) is rotatably connected to the inner wall of the first groove (2), and the other end extends into the second groove (6) and is threadedly connected to the moving block (7); the gear (8) is located in the first groove (2) and is fixedly sleeved on the screw (9); the rack (4) is fixedly connected to one side of the fixed plate (3), and the rack (4) is meshed with the gear (8).

3. The anti-slip and anti-cracking carbon steel flange nut according to claim 1, characterized in that: A sealing gasket (10) is fixedly connected to the bottom surface of the flange nut body (1), and the sealing gasket (10) is annular.

4. The anti-slip and anti-cracking carbon steel flange nut according to claim 1, characterized in that: A thread is provided on the inner wall of the flange nut body (1), and the bolt cooperates with the thread on the inner wall of the flange nut body (1).

5. The anti-slip and anti-cracking carbon steel flange nut according to claim 1, characterized in that: The upper end of the bolt is rotatably matched with the top wall of the nut cover (5).

6. The anti-slip and anti-cracking carbon steel flange nut according to claim 2, characterized in that: The lower end of each first groove (2) passes through the flange nut body (1), and the lower end of each fixing plate (3) is fixedly connected to a piston plate (11), and the piston plate (11) is sealingly and slidably connected to the corresponding first groove (2).

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