Quick-connection flange gate valve

Abstract

The utility model discloses a quick -wired flange gate valve convenient to dismouting belongs to valve technical field, and this valve includes water valve, water pipe and the fixed disc fixed at both butt -joint ends respectively, and its key lies in setting up quick -release subassembly, and this quick -release subassembly includes: the lock bar of the water valve side fixed disc stretchs out with the slide slot, and set up on the water pipe side fixed disc slidable lock piece, the second handle of lock piece transmission connection and the spring for providing locking elasticity, when installing, lock bar pushes in, and spring can drive lock piece and automatically card into the slide slot of lock bar to complete locking, when disassembling, operating second handle can make lock piece separate from slide slot, realizes quick separation. The utility model discloses through this quick -release structure, has solved the problem that current flange connection dismouting is complicated, time -consuming and depends on special tool, has the beneficial effect of not needing tool, and bare hands can complete dismouting, convenient operation, connection stable and reliable, significantly improves the beneficial effect of installation and maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a quick-connect flange gate valve that is easy to disassemble and assemble. Background Technology

[0002] In fluid transport modules, valves are key components controlling fluid flow, and their connection to pipelines is a crucial step in the installation process. To ensure connection strength and reliable sealing, flange connections are widely used in industry. This connection method involves installing flanges at both the valve and pipeline ports, then using multiple bolts and nuts to tighten them through the bolt holes on the flanges.

[0003] However, while traditional flange connections are reliable, they have inherent drawbacks in installation and disassembly. Operators need to use specialized tools such as wrenches to tighten or loosen multiple bolts one by one, a process that is time-consuming and labor-intensive. This inefficiency is particularly pronounced in situations requiring frequent disassembly for inspection, maintenance, or pipeline replacement.

[0004] This cumbersome disassembly and assembly process not only prolongs equipment downtime for maintenance and affects overall work efficiency, but also increases labor costs. Therefore, developing a valve structure that can replace traditional bolt fastening and allow for quick connection and disconnection without tools is of significant practical importance for simplifying installation steps and improving maintenance convenience.

[0005] Therefore, this utility model proposes a quick-connect flange gate valve that is easy to assemble and disassemble, in order to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a quick-connect flange gate valve that is easy to disassemble and assemble, aiming to improve the problem that the disassembly and assembly process of existing valves and pipelines is cumbersome, time-consuming, and relies on special tools.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a quick-connect flange gate valve that is easy to assemble and disassemble, comprising: a water valve, a water pipe, a fixing plate fixedly connected to the mating end faces of the water valve and the water pipe respectively, and a quick-release assembly; The quick-release assembly includes a locking rod extending coaxially from the fixing plate on the water valve side. A sliding groove is formed on the outer peripheral wall of the locking rod. The quick-release assembly also includes a locking member disposed on the fixing plate on the water pipe side. The locking member is throttle-connected to a second handle for operating the locking member. The locking member can also slide in a direction perpendicular to the axis of the locking rod to engage or disengage with the sliding groove of the locking rod. The quick-release assembly further includes a spring disposed between the fixing plate on the water pipe side and the locking member, and applies a spring force to the locking member to make it tend to engage with the sliding groove.

[0008] Preferably, a first handle is fixedly connected to the top of the water valve.

[0009] Preferably, the quick-connect flange gate valve, which is easy to disassemble and assemble, further includes a sealing assembly disposed at the connection between the water valve and the water pipe.

[0010] Preferably, the sealing assembly includes a sealing ring fixed on the inner wall of the through hole of the fixing plate on the side of the water valve, and the inner diameter of the sealing ring is smaller than the outer diameter of the water pipe.

[0011] Preferably, the sealing assembly further includes a sealing ring, which is an elastic ring that surrounds the locking rod and is axially clamped between the fixing plate on the water valve side and the fixing plate on the water pipe side.

[0012] Preferably, the sealing assembly further includes a collar, one end of which abuts against the fixing plate on the water valve side, and the other end of which covers the outer periphery of the fixing plate on the water pipe side.

[0013] Preferably, a fixing pin is provided on the inner wall of the collar, and a groove is provided on the outer peripheral wall of the fixing plate on the water pipe side to cooperate with the fixing pin, and the fixing pin and the groove form a rotational locking engagement.

[0014] Preferably, a fixing ring is also fixedly connected to the fixing plate on the water pipe side, and the inner hole of the fixing ring is coaxially sleeved on the outside of the locking rod.

[0015] This utility model has the following beneficial effects: 1. This utility model, by setting a quick-release assembly consisting of a locking rod, a sliding locking element and a spring, and utilizing a push-in self-locking and manual unlocking method, solves the problems of existing technologies where valve and pipeline connections require tools, are cumbersome to operate, and are time-consuming. It achieves the effect of quick installation and disassembly without tools and by hand, significantly improving the convenience of operation and work efficiency.

[0016] 2. This utility model solves the problems of poor sealing, unstable connection, and easy leakage or loosening under high pressure or vibration conditions that exist in existing quick-connect structures by setting a double sealing structure consisting of a radially interference fit sealing ring and an axially compressed sealing ring, and combining it with a rotating locking collar and fixing pin for secondary anti-loosening locking. It achieves the effect of reliable sealing, stable connection, and effective prevention of accidental separation, thereby improving the safety and service life of the entire device. Attached Figure Description

[0017] Figure 1 This is a perspective view of the quick-connect flange gate valve that is easy to assemble and disassemble according to this utility model. Figure 2 This is a schematic diagram of the quick-release assembly structure of the quick-connect flange gate valve that is easy to assemble and disassemble according to this utility model. Figure 3 This is a schematic diagram of the spring structure of the quick-connect flange gate valve that is easy to assemble and disassemble, as proposed in this utility model. Figure 4 This is a schematic diagram of the sealing assembly structure of the quick-connect flange gate valve that is easy to assemble and disassemble, as proposed in this utility model.

[0018] Legend: 1. Water valve; 2. First handle; 3. Water pipe; 4. Quick release assembly; 401. Second handle; 402. Retaining ring; 403. Locking rod; 404. Locking component; 405. Spring; 406. Fixing plate; 5. Sealing assembly; 501. Collar; 502. Fixing pin; 503. Sealing ring; 504. Sealing ring. Detailed Implementation

[0019] 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.

[0020] Reference Figure 1 - Figure 4 The present invention provides an embodiment of a quick-connect flange gate valve that is easy to assemble and disassemble, including a water valve 1 and a water pipe 3. The water valve 1 and the water pipe 3 are detachably connected by a quick-release assembly 4. A first handle 2 for controlling the opening or closing of the water valve 1 is installed on the top of the water valve 1 by a fixed connection. The connection end of the water valve 1 and the connection end of the water pipe 3 are respectively fixedly connected by a fixing plate 406. The two fixing plates 406 serve as the mounting base of the quick-release assembly 4. The quick-release assembly 4 includes a locking rod 403 extending coaxially from the fixing plate 406 on the side of the water valve 1. A groove is formed on the outer peripheral wall of the locking rod 403. The quick-release assembly 4 also includes a locking member 404 disposed on the fixing plate 406 on the side of the water pipe 3. The locking member 404 can slide in a direction perpendicular to the axis of the locking rod 403. The sliding of the locking member 404 causes its engaging portion to engage or disengage with the groove on the locking rod 403. The quick-release assembly 4 further includes a second handle 401, which is convexly connected to and extends from the locking member 404. Externally, for manual operation of the sliding of the lock 404, the quick-release assembly 4 also includes a spring 405, which is disposed between the fixing plate 406 on the side of the water pipe 3 and the lock 404. The spring 405 applies a continuous elastic force to the lock 404, which drives the lock 404 to move toward the position of being inserted into the slide groove. A fixing ring 402 is also installed on the fixing plate 406 on the side of the water pipe 3 by a fixed connection. The inner hole of the fixing ring 402 is coaxially sleeved on the outside of the lock rod 403, which is used to guide the lock rod 403 during the docking process. To achieve a reliable seal, the easy-to-disassemble quick-connect valve also includes a sealing component 5 located at the connection between the water valve 1 and the water pipe 3. The sealing component 5 forms a stable and multi-layered sealing barrier through multiple structural cooperation while the quick-release component 4 is locked. The sealing assembly 5 includes a sealing ring 504 fixed on the inner wall of the through hole of the fixing plate 406 on the side of the water valve 1. The inner diameter of the sealing ring 504 is smaller than the outer diameter of the water pipe 3. When the water pipe 3 is inserted into the fixing plate 406 on the side of the water valve 1, the outer wall of the water pipe 3 and the inner wall of the sealing ring 504 form an interference fit, constituting the first radial seal. The sealing assembly 5 also includes a sealing ring 503 as a second sealing structure. The sealing ring 503 is an elastic ring. In the assembled state, the sealing ring 503 surrounds the outer periphery of the locking rod 403 and is clamped in the axial direction between the fixing plate 406 on the side of the water valve 1 and the fixing plate 406 on the side of the water pipe 3, so that the sealing ring 503 is deformed by pressure and tightly fills the gap between the two fixing plates 406 and the gap between the sealing ring 403 and the locking rod 403. To further enhance the stability of the connection and prevent accidental loosening, the sealing assembly 5 also includes a collar 501. One end of the collar 501 abuts against the end face of the fixing plate 406 on the side of the water valve 1, and the other end of the collar 501 covers the outer periphery of the fixing plate 406 on the side of the water pipe 3. A fixing pin 502 is provided on the inner wall of the collar 501. Corresponding to the fixing pin 502, a groove is provided on the outer peripheral wall of the fixing plate 406 on the side of the water pipe 3 to cooperate with the fixing pin 502. By rotating the collar 501, the fixing pin 502 can form a rotational locking engagement with the groove, thereby locking the entire connection structure axially and circumferentially. A first handle 2 is fixedly connected to the top of the water valve 1. The first handle 2 provides a structure for opening and closing the water valve 1. To ensure the alignment accuracy of the quick-release assembly 4 during the docking process, a fixing ring 402 is also fixedly connected to the fixing plate 406 on the side of the water pipe 3. The inner hole of the fixing ring 402 is coaxially sleeved on the outside of the locking rod 403, providing guidance and support for the insertion of the locking rod 403. The sealing ring 504 is a rubber sealing ring 504 fixed in the groove of the through hole of the fixing plate 406 on the side of the water valve 1. The inner diameter of the sealing ring 504 is smaller than the outer diameter of the water pipe 3 in its natural state. To form a radial interference fit seal, the sealing ring 503 is an elastic annular gasket. The sealing ring 503 is set between the opposite end faces of the fixing plate 406 on the side of water valve 1 and the fixing plate 406 on the side of water pipe 3. The inner hole of the sealing ring 503 surrounds the locking rod 403. One end of the collar 501 abuts against the end face of the fixing plate 406 on the side of water valve 1, and the other end of the collar 501 covers the outer periphery of the fixing plate 406 on the side of water pipe 3. The fixing pin 502 provided on the inner wall of the collar 501 and the slot opened on the outer periphery of the fixing plate 406 on the side of water pipe 3 form a set of rotation locking fit structure.

[0021] Working principle: When connecting and installing water pipe 3 and water valve 1, first align water pipe 3 with the interface of water valve 1. Align the inner hole of the fixing ring 402 on the side of water pipe 3 with the locking rod 403 extending from the side of water valve 1 and push it in along the axis of the locking rod 403. During the pushing process, the outer wall of water pipe 3 first contacts the sealing ring 504 in the fixing plate 406 on the side of water valve 1 and forms an interference fit, achieving a preliminary radial seal. As water pipe 3 continues to be pushed in, the tapered end of the locking rod 403 will push the locking piece 404 to overcome the elastic force of the spring 405 and slide to one side. When the fixing plate 406 on the side of water pipe 3... When the end face of the fixed plate 406 on the side of the water valve 1 is about to be in contact with the locking rod 403, the sliding groove on the locking rod 403 moves to the position of the locking piece 404. At this time, the spring 405 rebounds and pushes the locking piece 404 into the sliding groove, completing the quick locking of the main body. At the same time, the contact of the two fixed plates 406 will axially compress the sealing ring 503 between them, so that the sealing ring 503 tightly wraps the locking rod 403 to form a reliable axial seal. Finally, rotate the collar 501 so that the fixing pin 502 on the inner wall of the collar 501 is inserted into the groove on the outer periphery of the fixed plate 406 on the side of the water pipe 3, completing the final anti-loosening lock. When disassembling the water pipe 3, first rotate the collar 501 in the opposite direction to disengage the fixing pin 502 from the slot and release the anti-loosening lock. Then, operate the second handle 401. The second handle 401 drives the locking piece 404 to slide outward against the elastic force of the spring 405 through the transmission connection, so that the locking piece 404 completely disengages from the sliding groove of the locking rod 403 and releases the locking state of the quick-release assembly 4. At this time, the water pipe 3 can be directly pulled out from the water valve 1 along the axial direction of the locking rod 403 to complete the quick disassembly.

Claims

1. Quick-connect flanged gate valves that are easy to install and disassemble, including: Water valve (1) and water pipe (3); Fixed plate (406), the fixed plate (406) is fixedly connected to the docking end face of the water valve (1) and the water pipe (3); Its characteristic is that it further includes: The quick-release assembly (4) includes: a second handle (401), a locking rod (403), a locking piece (404), and a spring (405). The locking rod (403) extends coaxially from the fixing plate (406) on the side of the water valve (1). A sliding groove is provided on the outer peripheral wall of the locking rod (403). The locking piece (404) is disposed on the fixing plate (406) on the side of the water pipe (3). The locking piece (404) can slide in a direction perpendicular to the axis of the locking rod (403) to engage or disengage with the sliding groove. The second handle (401) is connected to the locking piece (404) and extends to the outside for operation. The spring (405) is disposed between the fixing plate (406) on the side of the water pipe (3) and the locking piece (404) and applies a spring force to the locking piece (404) to make it tend to engage with the sliding groove.

2. The quick-connect flange gate valve for easy assembly and disassembly according to claim 1, characterized in that: The top of the water valve (1) is fixedly connected to a first handle (2).

3. The quick flanged gate valve of easy assembly and disassembly according to claim 1, characterized in that: It also includes a sealing assembly (5) disposed at the connection between the water valve (1) and the water pipe (3).

4. The quick flanged gate valve of easy assembly and disassembly according to claim 3, characterized in that: The sealing assembly (5) includes a sealing ring (504) fixed on the inner wall of the through hole of the fixing plate (406) on the side of the water valve (1), the inner diameter of the sealing ring (504) being smaller than the outer diameter of the water pipe (3).

5. The quick flanged gate valve of easy assembly and disassembly according to claim 4, characterized in that: The sealing assembly (5) further includes a sealing ring (503), which is an elastic ring. The elastic ring surrounds the locking rod (403) and is axially clamped between the fixing plate (406) on the side of the water valve (1) and the fixing plate (406) on the side of the water pipe (3).

6. The quick flanged gate valve of easy assembly and disassembly according to claim 5, characterized in that: The sealing assembly (5) also includes a collar (501), one end of which abuts against the fixing plate (406) on the side of the water valve (1), and the other end covers the outer periphery of the fixing plate (406) on the side of the water pipe (3).

7. The quick flanged gate valve of easy assembly and disassembly according to claim 6, characterized in that: A fixing pin (502) is provided on the inner wall of the collar (501), and a slot that cooperates with the fixing pin (502) is provided on the outer peripheral wall of the fixing plate (406) on the side of the water pipe (3). The fixing pin (502) and the slot form a rotational locking fit.

8. The quick flanged gate valve of easy assembly and disassembly according to claim 1, characterized in that: A fixing ring (402) is also fixedly connected to the fixing plate (406) on the side of the water pipe (3), and the inner hole of the fixing ring (402) is coaxially sleeved on the outside of the locking rod (403).

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