Pipe flange clamp

Abstract

This utility model discloses a pipe flange clamp, comprising: a C-shaped frame, the C-shaped frame being composed of a longitudinal section and two transverse sections respectively disposed at the upper and lower ends of the longitudinal section; two screws, respectively threaded onto the two transverse sections, capable of moving along the length of the longitudinal section; and two locking components respectively disposed on the two screws. This utility model allows for the replacement of pipe flange bolts due to severe corrosion. By moving the upper and lower screws to the upper and lower flanges at the points requiring disassembly and assembly, and then tightening the upper and lower screws, the stress on the flange during bolt replacement is compensated. This ensures that the flange seal is not affected while replacing the bolts, and also prevents leakage from the flange sealing surface during replacement. Because the locking components can lock the adjusted screws, the fixing firmness is further improved, thus achieving the purpose of replacing flange bolts without stopping the flow of media in the pipeline.

Description

Technical Field

[0001] This utility model relates to the field of gas pipeline maintenance technology, and in particular to a pipeline flange clamp. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] In gas supply systems, the safe and stable operation of gas pipelines is crucial. However, during long-term use, it is not uncommon for gas pipeline connecting flange bolts to need replacement due to severe corrosion.

[0004] Traditional flange bolt replacement methods require shutting down and depressurizing the pipeline to ensure operational safety. This process is not only complex and time-consuming, but it can also lead to gas supply interruptions, causing great inconvenience to residents and industrial production. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned shortcomings by providing a pipe flange clamp that allows for the replacement of flange bolts without stopping or venting the medium in the pipeline.

[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a pipe flange clamp, comprising: The C-shaped frame consists of a longitudinal section and two transverse sections respectively disposed at the upper and lower ends of the longitudinal section; Two screws are threaded onto two transverse sections, respectively, and can move along the length of the longitudinal section. Two locking components are respectively installed on the two screws to lock the corresponding screw after it has moved into place, preventing the corresponding screw from moving further.

[0007] Furthermore, the locking component consists of two locking nuts, both of which are threadedly connected to the corresponding screw and are located on the upper and lower sides of the corresponding transverse section, respectively.

[0008] Furthermore, the longitudinal section includes a fixed part and a movable part located at the top of the fixed part and capable of moving along the z-axis direction of the fixed part. The two transverse sections are respectively disposed on the fixed part and the movable part. The fixed part is provided with an anti-detachment component for restricting the movable part from detaching from the fixed part. Positioning posts are provided on both sides of the movable part in the x-axis direction. The longitudinal section also includes a limiting component for locking the positioning posts when the distance between the two transverse sections is at its minimum. The limiting component is disposed on the fixed part.

[0009] Furthermore, the limiting component includes two mounting brackets respectively disposed on both sides of the fixed part in the x-axis direction. A locking knob passing through the corresponding mounting bracket is rotatably connected to the mounting bracket by a torsion spring. An arc-shaped baffle is disposed near the movable part of the locking knob. The inner diameter of the arc-shaped baffle is equal to the outer diameter of the positioning post. When the distance between the two transverse segments is at its minimum, the arc-shaped baffle is sleeved on the corresponding positioning post and can rotate around the axis of the positioning post. When the torsion spring is in its natural state, the arc-shaped baffle is located above the positioning post.

[0010] Furthermore, the anti-detachment component includes a guide post, one end of which is connected to the fixed part and the other end is inserted into the movable part. The guide post is provided with a protrusion located in the movable part, and the movable part is provided with a groove for the guide post and the protrusion to move.

[0011] The beneficial effects of this utility model are reflected in: This invention addresses the issue of replacing flange bolts in pipelines when they are severely corroded. The upper and lower screws are moved to the upper and lower flanges at the points requiring disassembly and reassembly, and then tightened. This replenishes the stress on the flange during bolt replacement, ensuring the flange seal remains unaffected while preventing leakage at the flange sealing surface. The locking mechanism further enhances the fixing stability by locking the adjusted screws, thus enabling flange bolt replacement without stopping or venting the pipeline. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the structure of the limiting component of this utility model when it is in the open state.

[0013] In the picture: 1. C-shaped frame; 11. Longitudinal section; 111. Fixed part; 112. Movable part; 113. Positioning post; 114. Limiting component; 12. Transverse section; 2. Screw; 3. Locking component. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0015] Please see Figure 1-2This utility model discloses a pipe flange clamp, comprising: C-shaped frame 1, which consists of a longitudinal section 11 and two transverse sections 12 respectively located at the upper and lower ends of the longitudinal section 11; Two screws 2 are threaded onto two transverse sections 12 respectively, and can move along the length of the longitudinal section 11. Two locking components 3 are respectively provided on the two screws 2, and are used to lock the corresponding screw 2 after the screw 2 moves into place, so as to prevent the corresponding screw 2 from continuing to move.

[0016] In this invention, when the flange bolts of a pipeline connection need to be replaced due to severe corrosion, the upper and lower screw rods 2 are moved to the upper and lower flanges at the points where disassembly and assembly are required. Then, the upper and lower screw rods 2 are tightened to compensate for the stress on the flange during the bolt replacement process. The bolts are replaced while ensuring that the flange seal is not affected. At the same time, leakage on the flange sealing surface is avoided during the replacement process. Since the locking component 3 can lock the adjusted screw rod 2, the fixing firmness is further improved. Thus, the purpose of replacing flange bolts can be achieved without stopping the flow and emptying the medium in the pipeline.

[0017] In one embodiment, the locking component 3 consists of two locking nuts, both of which are threadedly connected to the corresponding screw 2 and are located on the upper and lower sides of the corresponding transverse section 12, respectively.

[0018] This design allows the screw 2 to be adjusted so that after the screw 2 is adjusted, the locking nut located between the two transverse sections 12 is tightened first, and then the remaining corresponding locking nuts are tightened, so that the two locking nuts are clamped on the corresponding transverse sections 12, thereby achieving the locking effect on the screw 2 and improving the stability of the screw 2 when it is fixed.

[0019] In one embodiment, the longitudinal segment 11 includes a fixed part 111 and a movable part 112 located at the top of the fixed part 111 and movable along the z-axis of the fixed part 111. Two transverse segments 12 are respectively disposed on the fixed part 111 and the movable part 112. The fixed part 111 is provided with an anti-detachment member for restricting the movable part 112 from detaching from the fixed part 111. Positioning posts 113 are provided on both sides of the movable part 112 in the x-axis direction. The longitudinal segment 11 also includes a limiting member 114 for locking the positioning posts 113 when the distance between the two transverse segments 12 is at its minimum. The limiting member 114 is disposed on the fixed part 111.

[0020] With this design, when the limiting component 114 locks the positioning post 113, the longitudinal section 11 is at its minimum length and cannot extend, which does not affect the normal installation and use of this pipe flange clamp. When the other bolts on the same flange need to be replaced, simply release the locking of the limiting component 114 to the positioning post 113, move to the next position, and then lock the positioning post 113 again to quickly adjust to the pressure state without repeatedly adjusting the locking nut and screw 2, thereby improving the operating efficiency.

[0021] In one embodiment, the limiting component 114 includes two mounting brackets respectively disposed on both sides of the fixed part 111 in the x-axis direction. A locking knob passing through the corresponding mounting bracket is rotatably connected to the mounting bracket by a torsion spring. An arc-shaped baffle is disposed at the end of the locking knob near the movable part 112. The inner diameter of the arc-shaped baffle is equal to the outer diameter of the positioning post 113. When the distance between the two transverse segments 12 is at its minimum, the arc-shaped baffle is sleeved on the corresponding positioning post 113 and can rotate around the axis of the positioning post 113. When the torsion spring is in its natural state, the arc-shaped baffle is located above the positioning post 113.

[0022] This design allows operators to manually rotate or use tools to rotate the locking knobs on both sides, causing the arc-shaped baffle on the locking knob to rotate below the positioning post 113. This removes any obstruction to the movement of the positioning post 113 and the movable part 112, allowing the movable part 112 to drive the corresponding screw 2 away from the flange and disconnect it from the flange. When the movable part 112 moves to the pressure application point, it can be moved towards the fixed part 111, and then the arc-shaped baffle on the locking knob can be rotated above the positioning post 113 to lock the positioning post 113 and prevent the movable part 112 from moving.

[0023] In one embodiment, the anti-detachment component includes a guide post, one end of which is connected to the fixed part 111 and the other end is inserted into the movable part 112. The guide post is provided with a protrusion located in the movable part 112, and the movable part 112 is provided with a groove for the guide post and the protrusion to move.

[0024] This design limits the movement distance of the protrusions by using a sliding groove, preventing the movable part 112 from completely separating from the guide post during movement and improving operational convenience.

[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] Additionally, "multiple" refers to two or more.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pipe flange clamp, characterized in that, include: The C-shaped frame (1) is composed of a longitudinal section (11) and two transverse sections (12) respectively disposed at the upper and lower ends of the longitudinal section (11); Two screws (2) are threaded onto two transverse sections (12) respectively, and can move along the length of the longitudinal section (11); Two locking components (3) are respectively set on the two screws (2) to lock the corresponding screw (2) after the screw (2) moves into place, preventing the corresponding screw (2) from continuing to move.

2. The pipe flange clamp according to claim 1, characterized in that: The locking component (3) consists of two locking nuts, both of which are threadedly connected to the corresponding screw (2) and are located on the upper and lower sides of the corresponding transverse section (12).

3. The pipe flange clamp according to claim 1, characterized in that: The longitudinal section (11) includes a fixed part (111) and a movable part (112) located at the top of the fixed part (111) and movable along the z-axis of the fixed part (111). Two transverse sections (12) are respectively disposed on the fixed part (111) and the movable part (112). The fixed part (111) is provided with an anti-detachment component for restricting the movable part (112) from detaching from the fixed part (111). Positioning posts (113) are provided on both sides of the movable part (112) in the x-axis direction. The longitudinal section (11) also includes a limiting component (114) for locking the positioning post (113) when the distance between the two transverse sections (12) is at its minimum. The limiting component (114) is disposed on the fixed part (111).

4. A pipe flange clamp according to claim 3, characterized in that: The limiting component (114) includes two mounting brackets respectively disposed on both sides of the fixed part (111) in the x-axis direction. The mounting brackets are rotatably connected by a torsion spring and a locking knob passing through the corresponding mounting bracket. An arc-shaped baffle is disposed at the end of the locking knob near the movable part (112). The inner diameter of the arc-shaped baffle is equal to the outer diameter of the positioning post (113). When the distance between the two transverse segments (12) is at its minimum, the arc-shaped baffle is sleeved on the corresponding positioning post (113) and can rotate around the axis of the positioning post (113). When the torsion spring is in its natural state, the arc-shaped baffle is located above the positioning post (113).

5. A pipe flange clamp according to claim 3, characterized in that: The anti-detachment component includes a guide post, one end of which is connected to the fixed part (111) and the other end is inserted into the movable part (112). The guide post is provided with a protrusion located in the movable part (112), and the movable part (112) is provided with a groove for the guide post and the protrusion to move.

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