Conversion flange connecting piece structure

Abstract

The utility model discloses a crossover flange connecting piece structure which comprises a first flange and a second flange, the side wall of the first flange and the side wall of the second flange are communicated with pipelines, through holes used for installing screws are symmetrically formed in the first flange and the second flange, and the outer portions of the screws are in threaded connection with nuts. A rectangular groove used for installing a sleeve is formed in the first flange, a movable rod is movably arranged in the sleeve, the movable rod is driven to move outwards by sliding the movable rod, so that a stopping block is driven to move till the stopping block abuts against a nut, and at the moment, the movable rod can be loosened; and the movable rod can abut against the other through hole in the first flange under the action of the first spring, the movable rod and the stopping block are limited through the movable rod, then the nut is limited through the stopping block, and the situation that the nut is prone to loosening due to vibration and other factors is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of conversion flanges, in particular to a conversion flange connecting piece structure. Background Art

[0002] A conversion flange is a component that connects pipes and equipment. It is mainly used to connect flanges of different standards (such as national standard, American standard, German standard, etc.) together to achieve the system layout of pipelines and the matching of equipment. The conversion flange can connect pipes of different calibers together to achieve efficient operation of the system.

[0003] Chinese patent publication number CN218564662U discloses an easy-to-connect conversion flange, including two flange bodies and a connector, a plurality of positioning grooves are provided on both surfaces of the flange body, a plurality of positioning ridges are provided on both surfaces of the flange body, a plurality of positioning grooves on one surface of the flange body are respectively opposite to the positioning ridges on the other surface of the flange body, and a plurality of positioning ridges on one flange body are respectively arranged in a plurality of positioning grooves of the other flange body. The utility model provides positioning ridges and positioning grooves on the flange body, so that the flange body can be guided within a certain distance during the connection process, which is conducive to the connection, and can ensure the concentricity during the connection, ensure the stability and accuracy of the connection point, and at the same time, can play a compressive role after the connection, reduce the problem of excessive force on the bolt caused by the torque, and ensure the stability of the connection.

[0004] The above-mentioned conversion flanges are fixed to each other by screws and nuts during use. However, in actual use, after a long period of use, the nuts are easily loosened due to factors such as vibration, thereby affecting the stability of the connection. Utility Model Content

[0005] In response to the above problems, a conversion flange connection structure is provided, in which a movable rod moving inside the first flange is used to drive the movable rod to move outward, thereby driving the stop block to move until it contacts the nut. The stop block is used to limit the nut to prevent the nut from loosening due to vibration and other factors, thereby affecting the stability of the connection.

[0006] In order to solve the problems of the prior art, the utility model provides a conversion flange connector structure, including a first flange and a second flange, the side walls of the first flange and the second flange are connected with a pipeline, the first flange and the second flange are internally provided with symmetrical through holes for installing screws, the external threads of the screws are connected with nuts, the first flange is internally provided with a rectangular groove for installing a sleeve, a movable rod is movably provided inside the sleeve, a stop block is provided at one end of the movable rod, and a movable groove for sliding the movable rod is provided on the top of the first flange.

[0007] Preferably, the end of the moving rod extends to the interior of the first flange and passes through the movable rod, an arc-shaped limit plate is provided on the outside of the moving rod, a first spring is sleeved on the outside of the moving rod, one end of the first spring is connected to the movable rod, and the other end of the first spring is connected to the arc-shaped limit plate.

[0008] Preferably, two through holes adapted to the moving rods are formed inside the first flange.

[0009] Preferably, guide blocks are symmetrically mounted on the side walls of the second flange, and guide grooves for the guide blocks to move are formed on the side walls of the first flange.

[0010] Preferably, a blocking block is provided inside the guide groove, a pull rod is provided on the side wall of the blocking block, one end of the pull rod extends to the outside of the first flange, a second spring is sleeved on the outside of the pull rod, one end of the second spring is connected to the blocking block, and the other end of the second spring is connected to the inner wall of the first flange.

[0011] Preferably, a clamping hole cooperating with the clamping block is provided inside the guide block.

[0012] Preferably, a sealing ring is provided on the side where the first flange and the second flange are in contact with each other.

[0013] Preferably, one side of the clamping block is provided with an inclined surface capable of sliding in cooperation with the guide block.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. By sliding the moving rod, the moving rod is used to drive the movable rod to move outward, thereby driving the stop block to move until it contacts the nut. At this time, the moving rod can be loosened, and the moving rod will contact another through hole inside the first flange under the action of the first spring. The moving rod is used to limit the movable rod and the stop block, and then the stop block is used to limit the nut, which effectively prevents the nut from loosening due to factors such as vibration.

[0016] 2. The guide block can be used to make a preliminary connection between the first flange and the second flange, and can also be used to correctly align the first flange and the second flange, making the connection more precise and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a conversion flange connection structure.

[0018] Figure 2 The invention is a schematic diagram of the internal structure of a first flange and a second flange in a conversion flange connector structure.

[0019] Figure 3The present invention is a partial structural schematic diagram of a first flange and a second flange in a conversion flange connector structure.

[0020] Figure 4 It is a schematic diagram of the enlarged structure of point A in the conversion flange connection structure.

[0021] Figure 5 The present invention is a structural schematic diagram of a guide block in a conversion flange connection structure.

[0022] Figure 6 The invention is a structural schematic diagram of a clamping block, a pull rod and a second spring in a conversion flange connection structure.

[0023] The numbers in the figure are: 1. first flange; 2. second flange; 3. pipe; 4. screw; 5. nut; 6. stop block; 7. moving rod; 8. sleeve; 9. movable rod; 10. arc limit plate; 11. first spring; 12. guide block; 13. clamping block; 14. pull rod; 15. second spring. DETAILED DESCRIPTION

[0024] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] like Figures 1 to 6 As shown, the utility model provides:

[0026] A conversion flange connection structure includes a first flange 1 and a second flange 2, the side walls of the first flange 1 and the second flange 2 are connected with a pipe 3, the first flange 1 and the second flange 2 are provided with symmetrical through holes for installing screws 4, the external threads of the screws 4 are connected with nuts 5, the first flange 1 is provided with a rectangular groove for installing a sleeve 8, a movable rod 9 is movably provided inside the sleeve 8, a stop block 6 is provided at one end of the movable rod 9, and a movable groove for sliding the movable rod 7 is provided at the top of the first flange 1.

[0027] Slide the movable rod 7 and use the movable rod 7 to drive the movable rod 9 to move outward, thereby driving the stop block 6 to move until it contacts the nut 5. At this time, the movable rod 7 can be loosened, and the movable rod 7 will contact another through hole inside the first flange 1 under the action of the first spring 11. The movable rod 9 and the stop block 6 are limited by the movable rod 7, and the nut 5 is limited by the stop block 6, which effectively prevents the nut 5 from loosening due to factors such as vibration.

[0028] like Figure 4As shown, the end of the moving rod 7 extends to the interior of the first flange 1 and passes through the movable rod 9. An arc-shaped limit plate 10 is provided on the outside of the moving rod 7. A first spring 11 is sleeved on the outside of the moving rod 7. One end of the first spring 11 is connected to the movable rod 9, and the other end of the first spring 11 is connected to the arc-shaped limit plate 10.

[0029] The moving rod 7 will come into conflict with another through hole inside the first flange 1 under the action of the first spring 11 , and the movable rod 9 and the blocking block 6 are limited by the moving rod 7 .

[0030] like Figure 4 As shown, two through holes matching with the moving rods 7 are formed inside the first flange 1 .

[0031] The two through holes can prevent the blocking block 6 from shaking easily when it is working or not working.

[0032] like Figure 5 As shown, guide blocks 12 are symmetrically mounted on the side wall of the second flange 2 , and guide grooves for the guide blocks 12 to move are formed on the side wall of the first flange 1 .

[0033] The first flange 1 and the second flange 2 can be preliminarily connected by the guide block 12 , and the first flange 1 and the second flange 2 can also be correctly aligned, making the connection more accurate and stable.

[0034] like Figure 6 As shown, a block 13 is provided inside the guide groove, a pull rod 14 is provided on the side wall of the block 13, one end of the pull rod 14 extends to the outside of the first flange 1, a second spring 15 is sleeved on the outside of the pull rod 14, one end of the second spring 15 is connected to the block 13, and the other end of the second spring 15 is connected to the inner wall of the first flange 1.

[0035] The clamping block 13 will be plugged into the clamping hole inside the guide block 12 under the elastic force of the second spring 15, and the first flange 1 and the second flange 2 can be preliminarily connected by the guide block 12, and the first flange 1 and the second flange 2 can also be correctly aligned, making the connection more precise and stable.

[0036] like Figure 5 As shown, a clamping hole cooperating with the clamping block 13 is provided inside the guide block 12 .

[0037] The clamping hole can make the clamping block 13 more stable during operation.

[0038] like Figure 1 As shown, a sealing ring is provided on the side where the first flange 1 and the second flange 2 are in contact with each other.

[0039] The sealing ring can effectively prevent the first flange 1 and the second flange 2 from leaking when connected.

[0040] like Figure 6 As shown, one side of the clamping block 13 is provided with an inclined surface that can slide in cooperation with the guide block 12 .

[0041] The inclined surface of the clamping block 13 facilitates the guide block 12 to push the clamping block 13 away during the movement, and then the clamping block 13 is plugged into the clamping hole inside the guide block 12 under the action of the second spring 15 .

[0042] Working principle: when the first flange 1 and the second flange 2 need to be connected, the guide block 12 on the outer wall of the second flange 2 is inserted into the guide groove of the side wall of the first flange 1, and a clamping block 13 is arranged in the guide groove, and one side of the clamping block 13 is arranged at an angle, so that the guide block 12 can push the clamping block 13 away during the movement. Then, the clamping block 13 will be plugged into the clamping hole inside the guide block 12 under the action of the second spring 15. The first flange 1 and the second flange 2 can be preliminarily connected by the guide block 12, and the first flange 1 and the second flange 2 can also be correctly aligned to make the connection more accurate and stable. Then, the screw 4 is installed inside the first flange 1 and the second flange 2, and then the nut 5 is cooperated to make the first flange 1 and the second flange 2 tightly connected. When the first flange 1 and the second flange 2 are connected, the moving rod 7 is pulled upward to make the moving rod 7 disengage from the first flange 1 and the second flange 2. When the nut 5 is in contact with one of the through holes inside the first flange 1, the movable rod 7 can be slid and the movable rod 9 can be used to move outward, thereby driving the stop block 6 to move until it contacts the nut 5. At this time, the movable rod 7 can be loosened, and the movable rod 7 will contact with another through hole inside the first flange 1 under the action of the first spring 11. The movable rod 9 and the stop block 6 are limited by the movable rod 7, and the nut 5 is then limited by the stop block 6, which effectively prevents the nut 5 from loosening due to factors such as vibration, thereby affecting the stability of its connection. When the first flange 1 and the second flange 2 need to be disassembled, the movable rod 7 is pulled in the reverse direction to disengage the stop block 6 from the conflict with the nut 5, and then the pull rod 14 is pulled to disengage the block 13 from the conflict with the internal card hole of the guide block 12. Finally, the nut 5 can be disassembled by rotating the nut 5 in the reverse direction.

[0043] The above embodiments only express a conversion flange connection structure or several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the attached claims.

Claims

1. A conversion flange connection structure, characterized in that: The invention comprises a first flange (1) and a second flange (2), wherein the side walls of the first flange (1) and the second flange (2) are both connected to a pipe (3), the first flange (1) and the second flange (2) are provided with symmetrical through holes for mounting a screw rod (4), the external thread of the screw rod (4) is connected to a nut (5), the first flange (1) is provided with a rectangular groove for mounting a sleeve (8), the sleeve (8) is provided with a movable rod (9) movably arranged inside, a stop block (6) is arranged at one end of the movable rod (9), and the top of the first flange (1) is provided with a movable groove for sliding a movable rod (7).

2. A conversion flange connection structure according to claim 1, characterized in that: The end of the movable rod (7) extends to the interior of the first flange (1) and passes through the movable rod (9); an arc-shaped limit plate (10) is arranged on the outside of the movable rod (7); a first spring (11) is sleeved on the outside of the movable rod (7); one end of the first spring (11) is connected to the movable rod (9), and the other end of the first spring (11) is connected to the arc-shaped limit plate (10).

3. A conversion flange connection structure according to claim 2, characterized in that: Two through holes adapted to the moving rods (7) are provided inside the first flange (1).

4. A conversion flange connection structure according to claim 1, characterized in that: The side wall of the second flange (2) is symmetrically provided with a guide block (12), and the side wall of the first flange (1) is provided with a guide groove for the guide block (12) to move.

5. A conversion flange connection structure according to claim 4, characterized in that: A clamping block (13) is arranged inside the guide groove, a pull rod (14) is arranged on the side wall of the clamping block (13), one end of the pull rod (14) extends to the outside of the first flange (1), a second spring (15) is sleeved on the outside of the pull rod (14), one end of the second spring (15) is connected to the clamping block (13), and the other end of the second spring (15) is connected to the inner wall of the first flange (1).

6. A conversion flange connection structure according to claim 4, characterized in that: The guide block (12) is provided with a clamping hole inside thereof for cooperating with the clamping block (13).

7. The conversion flange connection structure according to claim 1, characterized in that: A sealing ring is provided on the side where the first flange (1) and the second flange (2) are in contact with each other.

8. The conversion flange connection structure according to claim 5, characterized in that: One side of the clamping block (13) is provided with an inclined surface capable of sliding in cooperation with the guide block (12).

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