A flange plate for valve convenient to lock and install

Abstract

The utility model discloses a flange plate for valve convenient to lock and install, include: fixed flange, the outer wall of fixed flange is provided with the connecting flange, the inner wall of fixed flange and connecting flange all slidingly connected with bolt, the utility model relates to flange plate technical field, this fixed flange and connecting flange, through the slot of card block and connecting flange, the cooperation of slot, only need to adhere two flanges when installing, and card block can be automatically embedded in the slot under the action of compression spring, realize instant preposition, do not need manual repeated adjustment bolt hole position, especially suitable for single -handed operation or narrow scene, greatly shorten the installation preparation time, and the pre -lock state can temporarily fix two flanges, avoid the rework caused by flange misplacement, slide down during the installation process, through the rigid connection of the card block -slot cooperation of pre -lock and bolt -nut and form double -fixed, both through the card block limit flange radial displacement, and through bolt tension ensure that flange is closely adhered.

Description

Technical Field

[0001] This utility model relates to the field of flange technology, specifically to a valve flange that is easy to lock and install. Background Technology

[0002] In industrial pipeline systems, the connection between valves and pipelines often relies on flanges. The flanges are tightly fixed by bolts and nuts, and the sealing gaskets are used to achieve media sealing. They are key components to ensure the stable operation of the pipeline system. However, traditional valve flanges have some shortcomings in installation and use.

[0003] When installing traditional flanges, the bolt holes of the two flanges must be precisely aligned before the bolts can be inserted. However, the flanges themselves are heavy and are prone to relative slippage during the alignment process. Often, multiple people are needed to work together to support them and prevent the bolt holes from being misaligned. In installation scenarios with limited space, this alignment operation is even more cumbersome, which not only prolongs the installation preparation time but also increases labor costs. It may even cause wear on the sealing surface due to repeated adjustments, affecting the subsequent sealing effect. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a valve flange that is easy to lock and install, solving the problem of cumbersome alignment of two flanges during traditional flange installation.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A valve flange for easy locking installation includes: a fixed flange, a connecting flange on the outer wall of the fixed flange, and bolts slidably connected to the inner walls of both the fixed flange and the connecting flange; a sealing gasket fixedly connected to the inner wall of the fixed flange; symmetrical sliding grooves on the outer wall of the fixed flange; sliding holes on the inner wall of the sliding grooves; a compression plate slidably connected to the inner wall of the sliding holes; a sliding rod fixedly connected to the outer wall of the compression plate; a pull plate fixedly connected to the outer wall of the sliding rod; a locking block fixedly connected to the outer wall of the pull plate; and a compression spring fixedly connected to the outer wall of the compression plate.

[0009] Preferably, the outer wall of the pull plate is slidably connected to the inner wall of the slide groove, and the outer wall of the compression spring on the side away from the compression plate is fixedly connected to the inner wall of the slide hole. When the pull plate is pulled outward, the compression plate is compressed by the slide rod, causing the locking block and the pull plate to slide outward of the slide groove.

[0010] Preferably, the outer wall of the connecting flange is symmetrically provided with slots, and the inner wall of the slot is provided with a groove.

[0011] Preferably, the outer wall of the card block is slidably connected to the inner wall of the slot, the card block is engaged with the card slot, the outer wall of the sealing gasket is in contact with the outer wall of the connecting flange, the card block is engaged into the card slot to form a mechanical lock, and the two flanges are temporarily fixed by the engagement of the card block and the card slot to avoid relative sliding or misalignment during installation.

[0012] Preferably, the outer wall of the bolt is threaded with a nut, and the fixed flange and the connecting flange are fixedly connected by the bolt. The bolt is passed through the corresponding bolt holes of the fixed flange and the connecting flange, and the nut is screwed into the other end of the bolt. By tightening the nut, the two flanges are brought into closer contact, the gasket is compressed and deformed, and the tiny gaps on the sealing surface are filled to achieve a reliable seal.

[0013] (III) Beneficial Effects

[0014] This utility model provides a valve flange that is easy to lock and install. It has the following advantages:

[0015] (I) This fixed flange, through the cooperation of the locking block and the slot and groove of the connecting flange, only requires the two flanges to be put together during installation. The locking block can automatically embed into the groove under the action of the compression spring, achieving instant pre-positioning. There is no need for manual repeated adjustment of the bolt hole position. It is especially suitable for single-person operation or scenarios with limited space, which greatly shortens the installation preparation time. The pre-locked state can temporarily fix the two flanges, avoiding rework caused by flange misalignment or slippage during installation. It solves the problem that traditional flanges require multiple people to support them to insert bolts, reducing labor costs.

[0016] (ii) The connecting flange is double fixed by the pre-locking block-slot fit and the rigid connection of bolts and nuts. The block restricts the radial displacement of the flange, and the bolt tension ensures that the flange fits tightly, effectively preventing loosening caused by vibration and pressure changes during long-term use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the bolt of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the card block of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the fixed flange of this utility model;

[0021] Figure 5This is a schematic diagram of the connecting flange of this utility model.

[0022] In the diagram: 1. Fixed flange; 11. Sealing gasket; 12. Slide groove; 13. Slide hole; 14. Compression plate; 15. Slide rod; 16. Pull plate; 17. Locking block; 18. Compression spring; 2. Connecting flange; 21. Slot; 22. Locking groove; 3. Bolt; 31. Nut. Detailed Implementation

[0023] 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 some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a valve flange that is easy to lock and install, comprising: a fixed flange 1, a connecting flange 2 provided on the outer wall of the fixed flange 1, bolts 3 slidably connected to the inner walls of both the fixed flange 1 and the connecting flange 2; a sealing gasket 11 fixedly connected to the inner wall of the fixed flange 1, symmetrically provided sliding grooves 12 on the outer wall of the fixed flange 1, sliding holes 13 provided on the inner wall of the sliding grooves 12, a compression plate 14 slidably connected to the inner wall of the sliding holes 13, a sliding rod 15 fixedly connected to the outer wall of the compression plate 14, a pull plate 16 fixedly connected to the outer wall of the sliding rod 15, a locking block 17 fixedly connected to the outer wall of the pull plate 16, and a compression spring 18 fixedly connected to the outer wall of the compression plate 14.

[0025] The outer wall of the pull plate 16 is slidably connected to the inner wall of the slide groove 12, and the outer wall of the compression spring 18 away from the compression plate 14 is fixedly connected to the inner wall of the slide hole 13. When the pull plate 16 is pulled outward, the compression plate 14 is driven by the slide rod 15 to compress the spring 18, so that the locking block 17 and the pull plate 16 slide outward of the slide groove 12.

[0026] The outer wall of the connecting flange 2 is symmetrically provided with slots 21, and the inner wall of the slots 21 is provided with grooves 22.

[0027] The outer wall of the locking block 17 is slidably connected to the inner wall of the slot 21. The locking block 17 is engaged with the slot 22. The outer wall of the sealing gasket 11 is in contact with the outer wall of the connecting flange 2. The locking block 17 is engaged in the slot 22 to form a mechanical lock. The two flanges are temporarily fixed by the engagement of the locking block 17 and the slot 22 to avoid relative sliding or misalignment during installation.

[0028] The outer wall of the bolt 3 is threaded with a nut 31. The fixed flange 1 and the connecting flange 2 are fixedly connected by the bolt 3. The bolt 3 is passed through the corresponding bolt holes of the fixed flange 1 and the connecting flange 2, and the nut 31 is screwed into the other end of the bolt 3. By tightening the nut 31, the two flanges are brought into closer contact, the sealing gasket 11 is compressed and deformed, and the tiny gaps on the sealing surface are filled to achieve a reliable seal.

[0029] In use, the fixed flange 1 is welded to the valve, and the connecting flange 2 is welded to the pipeline. The fixed flange 1 and the connecting flange 2 are connected by bolts 3 and nuts 31 threaded engagement.

[0030] In the initial state, the sealing gasket 11 on the fixed flange 1 is in a natural state, which is used to achieve a seal when it is subsequently fitted with the connecting flange 2. The pull plate 16 in the slide groove 12 is in a contracted state under the elastic force of the compression spring 18. One end of the compression spring 18 is fixed to the inner wall of the slide hole 13, and the other end pushes the compression plate 14, which in turn drives the pull plate 16 and the locking block 17 to be retracted in the slide groove 12 through the slide rod 15.

[0031] During installation, bring the connecting flange 2 closer to the fixed flange 1 so that their sealing surfaces are aligned. At the same time, ensure that the locking block 17 of the fixed flange 1 corresponds to the slot 21 of the connecting flange 2. As the two flanges approach each other, the locking block 17 slides into the inner wall of the slot 21 after contacting the edge of the connecting flange 2. At this time, the pull plate 16 is pushed by the inner wall of the slot 21 and moves the compression plate 14 outward through the slide rod 15. The compression spring 18 is compressed. When the sealing surfaces of the two flanges are fully in contact, the sealing gasket 11 begins to be initially compressed. The locking block 17 moves with the pull plate 16 to the end of the slot 21 and aligns with the slot 22. At this time, the elasticity of the compression spring 18 is released, pushing the compression plate 14, slide rod 15 and pull plate 16 to reset. The locking block 17 is ejected into the slot 22, forming a mechanical lock. The two flanges are temporarily fixed by the locking block 17 and the slot 22, avoiding relative sliding or misalignment during installation.

[0032] Based on the pre-positioning and locking, the bolt 3 is passed through the corresponding bolt holes of the fixed flange 1 and the connecting flange 2, and the nut 31 is screwed into the other end of the bolt 3. By tightening the nut 31, the two flanges are brought closer together, the sealing gasket 11 is compressed and deformed, filling the tiny gaps on the sealing surface and achieving a reliable seal. At the same time, the tension of the bolt 3 and the nut 31 firmly fixes the two flanges. Combined with the previous snap-fit ​​structure, a double fixation is formed, which enhances the stability of the connection.

[0033] Conversely, during disassembly, first loosen nut 31 and remove bolt 3 to release the fixing force of bolt 3. Pull the pull plate 16 outward, and through the slide rod 15, drive the compression plate 14 to compress the spring 18, so that the locking block 17 is dislodged from the slot 22. At this time, the pre-positioning lock is released, and the connecting flange 2 can be separated from the fixed flange 1 to complete the disassembly.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A valve flange that is easy to lock during installation, characterized in that, include: A fixed flange (1) is provided with a connecting flange (2) on the outer wall of the fixed flange (1), and bolts (3) are slidably connected to the inner walls of both the fixed flange (1) and the connecting flange (2). A sealing gasket (11) is fixedly connected to the inner wall of the fixed flange (1). A sliding groove (12) is symmetrically opened on the outer wall of the fixed flange (1). A sliding hole (13) is opened on the inner wall of the sliding groove (12). A compression plate (14) is slidably connected to the inner wall of the sliding hole (13). A sliding rod (15) is fixedly connected to the outer wall of the compression plate (14). A pull plate (16) is fixedly connected to the outer wall of the sliding rod (15). A locking block (17) is fixedly connected to the outer wall of the pull plate (16). A compression spring (18) is fixedly connected to the outer wall of the compression plate (14).

2. The valve flange for easy locking installation according to claim 1, characterized in that: The outer wall of the pull plate (16) is slidably connected to the inner wall of the slide groove (12), and the outer wall of the compression spring (18) on the side away from the compression plate (14) is fixedly connected to the inner wall of the slide hole (13).

3. A valve flange for easy locking installation according to claim 1, characterized in that: The outer wall of the connecting flange (2) is symmetrically provided with slots (21), and the inner wall of the slots (21) is provided with grooves (22).

4. A valve flange for easy locking installation according to claim 1, characterized in that: The outer wall of the card block (17) is slidably connected to the inner wall of the slot (21), the card block (17) is engaged with the card slot (22), and the outer wall of the sealing gasket (11) is in contact with the outer wall of the connecting flange (2).

5. A valve flange for easy locking installation according to claim 1, characterized in that: The outer wall of the bolt (3) is threaded with a nut (31), and the fixed flange (1) and the connecting flange (2) are fixedly connected by the bolt (3).

Images