A convenient fastening device for flared flanges

Abstract

This utility model discloses a convenient fastening device for flared flanges, relating to the technical field of flared flange fastening devices. The convenient fastening device includes a flared flange A and a convenient fastening device. The device includes a housing, telescopic plates, hexagonal locking blocks, a return spring, a receiving groove, a limiting block, and a limiting groove. The housing is located on one side of the flared flange A. Two telescopic plates are slidably connected inside the housing. The number of hexagonal locking blocks is the same as the number of telescopic plates, and they are all fixedly connected to the surface of the corresponding telescopic plates. The return spring is fixedly connected to the opposite surfaces of the two telescopic plates. The receiving groove is located inside the housing, and the return spring is located inside the receiving groove. The convenient fastening device allows the flange mounting nut to limit the rotation of the flange mounting screws when tightened, and it is easy to operate. It can simultaneously limit the rotation of two flange mounting screws, resulting in higher efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of flared flange fastening devices, and in particular to a convenient fastening device for flared flange fasteners. Background Technology

[0002] A flange, also called a flange disc or flange, is a part used to connect shafts, for connecting pipe ends; flanges are also used on equipment inlets and outlets to connect two pieces of equipment, such as speed reducer flanges, while flared flanges are one type of flange.

[0003] However, the traditional flared flange installation has the following aspects that need improvement:

[0004] 1. Existing flared flanges often require the simultaneous use of a fork wrench and an Allen wrench for tightening, which makes installation or tightening impossible in confined spaces.

[0005] 2. Existing flared flange installation requires two hands to operate simultaneously, but on-site conditions are generally complex, and many locations cannot be operated with two wrenches at the same time, greatly reducing the efficiency of flange installation. Furthermore, tightening flared flanges requires a large space, and both hex wrenches and fork wrenches require consideration of hand reach, involving many operational precautions and making the operation cumbersome and unsuitable for practical application. Therefore, a convenient fastening device for flared flanges is needed. Utility Model Content

[0006] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a convenient fastening device for flared flanges. This device can solve the problem that the installation of flared flanges in complex working conditions greatly reduces the efficiency of flange installation, and that there are many precautions to be taken, making the operation cumbersome and unsuitable for practical application and operation.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a convenient fastening device for flared flanges, comprising a flared flange A and a convenient fastening device. The convenient fastening device includes a device housing, telescopic plates, hexagonal locking blocks, a return spring, a receiving groove, a limiting block, and a limiting groove. The device housing is disposed on one side of the flared flange A. There are two telescopic plates, both slidably connected inside the device housing. The number of hexagonal locking blocks is the same as the number of telescopic plates, and they are all fixedly connected to the surface of the corresponding telescopic plates. The return spring is fixedly connected to the opposite sides of the two telescopic plates. The receiving groove is opened inside the device housing, and the return spring is located inside the receiving groove. There are multiple limiting blocks, each fixedly connected to both sides of the corresponding telescopic plate. The number of limiting grooves is the same as the number of limiting blocks, and they are all opened on the surface of the device housing. Each limiting block is slidably connected inside the corresponding limiting groove.

[0008] Preferably, a flared flange B is provided on one side of the flared flange A, and a plurality of flange mounting screws are slidably connected inside the flared flange A and the flared flange B. Each flange mounting screw has a mounting screw head fixedly connected to its surface, and a flange mounting nut is threaded onto the surface of each flange mounting screw.

[0009] Preferably, the surface of the mounting screw head is provided with a hexagonal groove, the hexagonal groove is adapted to the shape of the hexagonal locking block, and the hexagonal locking block is slidably connected inside the hexagonal groove.

[0010] Preferably, the flared flange A and the flared flange B have the same structure, and both the flared flange A and the flared flange B have multiple flange mounting holes on their surfaces, with each flange mounting screw located inside the corresponding flange mounting hole.

[0011] Preferably, both the flared flange A and the flared flange B have flange through holes on their surfaces.

[0012] Preferably, the flange through hole is provided with a flared steel pipe.

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

[0014] 1. This flared flange uses a convenient fastening device. This device limits the rotation of the flange mounting screws when the flange mounting nut is tightened. It is easy to operate, space-saving, and can simultaneously restrict the rotation of two flange mounting screws, resulting in higher efficiency. It allows for single-handed tightening, thus preventing insufficient space from causing the flange to be unable to be tightened or under-tightened. This solves the problem of significantly reduced installation efficiency in complex working conditions, and the numerous operational precautions and cumbersome operation that hinder practical application and operation of flared flanges. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a schematic diagram of the main body of this utility model;

[0017] Figure 2 This is a schematic diagram of the hexagonal groove of this utility model;

[0018] Figure 3 This is a schematic diagram of the flared steel pipe of this utility model;

[0019] Figure 4 This is a schematic diagram of the flange mounting screws of this utility model;

[0020] Figure 5 This is a schematic diagram of the hexagonal card block of this utility model;

[0021] Figure 6 This is a schematic diagram of the convenient fastening device of this utility model.

[0022] Reference numerals: 1. Flared flange A; 2. Flared flange B; 3. Flange through hole; 4. Flange mounting hole; 5. Flared steel pipe; 6. Convenient fastening device; 7. Flange mounting screw; 8. Mounting screw head; 9. Hexagonal groove; 10. Flange mounting nut; 11. Device housing; 12. Telescopic plate; 13. Hexagonal locking block; 14. Return spring; 15. Receiving groove; 16. Limiting block; 17. Limiting groove. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0026] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0027] Please see Figure 1-6This utility model provides a technical solution: a convenient fastening device for flared flanges, including a flared flange A1 and a convenient fastening device 6. The convenient fastening device 6 includes a device housing 11, telescopic plates 12, hexagonal blocks 13, a return spring 14, a receiving groove 15, a limiting block 16, and a limiting groove 17. The device housing 11 is disposed on one side of the flared flange A1. There are two telescopic plates 12, both of which are slidably connected inside the device housing 11. The number of hexagonal blocks 13 is the same as that of the telescopic plates 12, and they are all fixedly connected to the surface of the corresponding telescopic plates 12. The return spring 14 is fixedly connected to the opposite surfaces of the two telescopic plates 12. The receiving groove 15 is opened inside the device housing 11, and the return spring 14 is located inside the receiving groove 15. There are multiple limiting blocks 16, which are respectively fixedly connected to both sides of the corresponding telescopic plates 12. The number of limiting grooves 17 is the same as that of the limiting blocks 16, and they are all opened on the surface of the device housing 11. Each limiting block 16 is slidably connected inside the corresponding limiting groove 17.

[0028] Furthermore, a flared flange B2 is provided on one side of the flared flange A1. Multiple flange mounting screws 7 are slidably connected inside the flared flanges A1 and B2. Each flange mounting screw 7 has a mounting screw head 8 fixedly connected to its surface. Each flange mounting screw 7 has a flange mounting nut 10 threaded onto its surface. The mounting screw head 8 has a hexagonal groove 9 on its surface. The hexagonal groove 9 is adapted to the shape of the hexagonal locking block 13. The hexagonal locking block 13 is slidably connected inside the hexagonal groove 9. The structures of the flared flanges A1 and B2 are completely identical. Multiple flange mounting holes 4 are provided on the surface of both the flared flanges A1 and B2. Each flange mounting screw 7 is located inside the corresponding flange mounting hole 4. Flange through holes 3 are provided on the surface of both the flared flanges A1 and B2. A flared steel pipe 5 is provided inside the flange through hole 3.

[0029] Furthermore, when installing flared flanges A1 and B2, first insert each flange mounting screw 7 into flared flange A1 and flared flange B2 through the flange mounting hole 4. Then, thread the flange mounting nut 10 onto the flange mounting screw 7. Simultaneously press both ends of the convenient fastening device 6 to bring the two telescopic plates 12 closer together, thereby squeezing the return spring 14. After adjusting the two hexagonal locking blocks 13 to a suitable distance, insert them into the hexagonal grooves 9 on the corresponding mounting screw heads 8. At this time, the rotation of the two flange mounting screws 7 on one side can be restricted at the same time. Then, use a fork wrench with one hand to rotate the flange mounting nut 10, thereby tightening flared flanges A1 and B2. When tightening one of the flange mounting nuts 10, the convenient fastening device 6 will tend to rotate. When it is about to rotate, it will be limited by the hexagonal locking block 13 on the other end and locked, so as not to affect the use of the fork wrench, reducing the use of the hexagonal wrench and adapting to flared flanges of different sizes.

[0030] Furthermore, the convenient fastening device 6 allows the flange mounting nut 10 to limit the rotation of the flange mounting screw 7 when tightening. It is easy to operate, does not take up space, and can simultaneously limit the rotation of two flange mounting screws 7, resulting in higher efficiency. It can achieve single-handed tightening, thereby avoiding the phenomenon that the flange cannot be tightened or is not tightened due to insufficient space. It solves the problem that the installation efficiency of flared flanges is greatly reduced in complex working conditions, and that there are many precautions to be taken when operating the flanges, making the operation cumbersome and unsuitable for practical application and operation.

[0031] Structural Description: Flared Flange A1: A flange connector with an enlarged diameter, used to connect pipes of different diameters, serving as a transition and adaptation. Flared Flange B2 has the same structure as Flared Flange A1. Flared Flange A1 and Flared Flange B2 are fixed together to form a whole to achieve pipe connection.

[0032] Flange through hole 3: It is opened inside the flared flange A1 to accommodate the flared steel pipe 5;

[0033] Flange mounting holes 4: These are formed on the surface of the flared flange A1. There are multiple flange mounting holes 4 located at the four corners of the flared flange A1, used for mounting and fixing the flared flange A1 and the flared flange B2.

[0034] Convenient fastening device 6: Located on one side of the flared flange A1, it is used to limit the installation of the flange mounting screw 7 and prevent the flange mounting screw 7 from rotating during the installation of the flange mounting nut 10.

[0035] Flange mounting screw 7: A part of the screw that is slidably connected inside flared flange A1 and flared flange B2, used to connect flared flange A1 and flared flange B2;

[0036] Install screw head 8: It is fixed to the surface of flange mounting screw 7, is part of the screw, and forms a screw whole with flange mounting screw 7;

[0037] Hexagonal groove 9: It is formed on the surface of the mounting screw head 8. When used with the convenient fastening device 6, it can prevent the mounting screw head 8 from rotating, thereby preventing the flange mounting screw 7 from rotating.

[0038] Flange mounting nut 10: Threaded onto the outer surface of flange mounting screw 7, used to fasten and install flared flange A1 and flared flange B2;

[0039] Device housing 11: Located on one side of the flared flange A1, used for mounting the telescopic plate 12;

[0040] Telescopic plate 12: It is slidably connected inside the device housing 11. There are two telescopic plates 12, located on the upper and lower sides of the device housing 11 respectively, and used to drive the hexagonal locking block 13 to move.

[0041] Hexagonal locking block 13: It is fixed to the surface of the telescopic plate 12 and is adapted to the shape of the hexagonal groove 9. The hexagonal locking block 13 can be slidably installed inside the hexagonal groove 9 to limit the rotation of the mounting screw head 8.

[0042] Return spring 14: Fixed to the opposite surfaces of the two telescopic plates 12, used to reset the movement of the telescopic plates 12;

[0043] Receiving groove 15: It is formed inside the device housing 11 and is used to accommodate the return spring 14 and the telescopic plate 12, and to limit the telescopic plate 12.

[0044] Limiting block 16: It is fixed to the surface of the telescopic plate 12 and cooperates with the limiting groove 17 to limit the movement of the telescopic plate 12 and prevent the telescopic plate 12 from leaving the inside of the device housing 11.

[0045] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A convenient fastening device for fasteners used in flared flanges, characterized in that, include: Flange A(1); The convenient fastening device (6) includes a device housing (11), a telescopic plate (12), a hexagonal locking block (13), a return spring (14), a receiving groove (15), a limiting block (16), and a limiting groove (17). The device housing (11) is located on one side of the flared flange A (1). There are two telescopic plates (12), both of which are slidably connected inside the device housing (11). The number of hexagonal locking blocks (13) is the same as that of the telescopic plates (12), and they are all fixedly connected to the corresponding telescopic plates (12). The return spring (14) is fixedly connected to the opposite sides of the two telescopic plates (12). The receiving groove (15) is opened inside the device housing (11). The return spring (14) is located inside the receiving groove (15). There are multiple limiting blocks (16) and they are fixedly connected to the two sides of the corresponding telescopic plates (12). The number of limiting grooves (17) is the same as that of the limiting blocks (16) and they are all opened on the surface of the device housing (11). Each limiting block (16) is slidably connected inside the corresponding limiting groove (17).

2. The convenient fastening device for flared flanges according to claim 1, characterized in that: A flared flange B (2) is provided on one side of the flared flange A (1). Multiple flange mounting screws (7) are slidably connected inside the flared flange A (1) and the flared flange B (2). Each flange mounting screw (7) has a mounting screw head (8) fixedly connected to its surface, and each flange mounting screw (7) has a flange mounting nut (10) threaded onto its surface.

3. The convenient fastening device for flared flanges according to claim 2, characterized in that: The surface of the mounting screw head (8) is provided with a hexagonal groove (9), which is adapted to the shape of the hexagonal locking block (13), and the hexagonal locking block (13) is slidably connected inside the hexagonal groove (9).

4. The convenient fastening device for flared flanges according to claim 1, characterized in that: The flared flange A (1) and flared flange B (2) have the same structure. Both flared flange A (1) and flared flange B (2) have multiple flange mounting holes (4) on their surfaces. Each flange mounting screw (7) is located inside the corresponding flange mounting hole (4).

5. A convenient fastening device for fasteners used in flared flanges according to claim 1, characterized in that: Both the flared flange A (1) and the flared flange B (2) have flange through holes (3) on their surfaces.

6. A convenient fastening device for fasteners used in flared flanges according to claim 5, characterized in that: A flared steel pipe (5) is installed inside the flange through hole (3).

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