Gate valve with line pressing assembly mechanism

Abstract

The gate valve comprises a gate valve body, a lower flange and an upper flange, the lower end of the lower flange is provided with the line pressing assembly mechanism, the line pressing assembly mechanism comprises a fixing frame placed at the lower end of the lower flange, and the side, close to the lower flange, of the upper end of the fixing frame is fixedly connected with a guide rod. A lower pressing frame is placed at the upper end of the upper flange, a butt joint groove is formed in the upper end of the lower pressing frame, and a threaded head is movably connected to the inner side of the butt joint groove. According to the gate valve with the line pressing assembly mechanism, the fixing frame and the lower pressing frame correspond to the lower flange and the upper flange respectively, and the fixing frame and the lower pressing frame are attached to the lower flange and the upper flange, so that four sets of limiting blocks are clamped in the fixing frame and the lower pressing frame respectively; the purpose that the fixing frame and the lower pressing frame are clamped on the lower flange and the upper flange conveniently for limiting is achieved, and therefore the fixing frame and the lower pressing frame are effectively clamped on the lower flange and the upper flange.

Description

Technical Field

[0001] This utility model relates to the field of gate valve technology, and in particular to a gate valve with a pressure line assembly mechanism. Background Technology

[0002] The inspection and acceptance of gate valves are now mostly carried out by using red lead powder for wire clamping. However, the wire clamping of the valve core is often done by pressing the valve core and valve seat together and then tapping it tightly with a copper rod.

[0003] Utility model patent CN216449159U discloses a gate valve structure, including a gate valve assembly comprising a gate valve body, a valve core disposed inside the gate valve body, and a flange disposed on the top of the gate valve body; and a crimping assembly comprising a fixing plate disposed on the top of the flange, a valve stem nut disposed on the fixing plate, a valve stem nut disposed inside the fixing plate, and a threaded rod disposed inside the valve stem nut. This utility model utilizes the cooperation of the threaded rod and the valve stem nut to facilitate the crimping of the valve disc and valve seat of large-diameter gate valves, saving manpower and time. This device fills the gap in tools for the crimping and acceptance of large-diameter gate valves, effectively improving labor efficiency and saving manpower and time.

[0004] However, this utility model still has shortcomings. For example, when using a gate valve with a crimping tool, the crimping tool needs to be clamped onto the flange. Because it is clamped directly onto the flange, the crimping tool and the flange cannot be properly engaged, which prevents the crimping tool from effectively treating the sealing surfaces of the valve disc and valve seat. Therefore, a solution that can alleviate the above problems is urgently needed. Utility Model Content

[0005] The main objective of this invention is to provide a gate valve with a pressure line assembly mechanism, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A gate valve with a pressure line assembly mechanism includes a gate valve body, a lower flange, and an upper flange. The lower end of the lower flange is provided with a pressure line assembly mechanism, which includes a fixed frame placed at the lower end of the lower flange. A guide rod is fixedly connected to the upper end of the fixed frame near the lower flange. A lower pressure frame is placed at the upper end of the upper flange. A mating groove is formed at the upper end of the lower pressure frame. A threaded head is movably connected to the inner side of the mating groove. A connecting frame is fixedly connected to the lower end of the threaded head. A limit seat is movably connected to the inner side of the connecting frame via a rotating shaft. An internal threaded ring is threadedly connected to the outer side of the threaded head near the upper side of the mating groove. A limit block is movably connected inside the lower pressure frame. A threaded rod is fixedly connected to the upper end of the fixed frame near the other side of the lower flange.

[0008] Preferably, the threaded rod extends into the interior of the lower pressure frame, the threaded rod is slidably connected to the lower pressure frame, and a nut is threadedly connected to the outer side of the threaded rod near the upper side of the lower pressure frame.

[0009] Preferably, the guide rod extends into the interior of the lower pressure frame, the guide rod is slidably connected to the lower pressure frame, a baffle is fixedly connected to the upper end of the guide rod, the lower pressure frame is located above the fixed frame, and the lower end of the limiting seat is fixedly connected to the upper end of the fixed frame near the rear side of the guide rod.

[0010] Preferably, the lower end of the internal threaded ring is in contact with the upper end of the lower pressure frame, the lower end of the limiting block is fixedly connected to the upper end of the upper flange, and there are four sets of the limiting blocks.

[0011] Preferably, two sets of the limiting blocks are located inside the fixed frame, and both sets of the limiting blocks are fixedly connected to the lower flange, with the lower end of the nut contacting the upper end of the lower pressure frame.

[0012] Preferably, the lower flange is installed at the upper end of the gate valve body, the upper flange is installed at the upper end of the lower flange, a knob is installed at the upper end of the upper flange near the inner side of the lower pressure frame, a mating ring is fixedly connected to one end of the gate valve body, and the lower flange is connected to the valve core inside the gate valve body.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] By aligning the fixed bracket and the lower pressure bracket with the lower flange and the upper flange respectively, and by fitting the fixed bracket and the lower pressure bracket with the lower flange and the upper flange, the four sets of limit blocks are respectively locked inside the fixed bracket and the lower pressure bracket. This achieves the purpose of facilitating the upper limit locking of the fixed bracket and the lower pressure bracket on the lower flange and the upper flange, thereby effectively locking the fixed bracket and the lower pressure bracket onto the lower flange and the upper flange. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a gate valve with a pressure line assembly mechanism according to the present invention;

[0016] Figure 2 This is a schematic diagram of the pressure assembly mechanism of a gate valve with a pressure assembly mechanism according to the present invention.

[0017] Figure 3 This is a partial structural diagram of the pressure assembly mechanism of a gate valve with a pressure assembly mechanism according to the present invention;

[0018] Figure 4 This utility model Figure 2 A magnified structural diagram of part A.

[0019] In the diagram: 1. Gate valve body; 2. Lower flange; 3. Upper flange; 4. Knob; 5. Connecting ring; 6. Pressure wire assembly mechanism; 61. Fixing bracket; 62. Guide rod; 63. Lower pressure bracket; 64. Connecting groove; 65. Threaded head; 66. Connecting bracket; 67. Limit seat; 68. Internal threaded ring; 69. Limit block; 610. Threaded rod; 611. Nut; 612. Baffle. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figure 1-4 As shown, a gate valve with a pressure line assembly mechanism includes a gate valve body 1, a lower flange 2, and an upper flange 3. A pressure line assembly mechanism 6 is provided at the lower end of the lower flange 2. The pressure line assembly mechanism 6 includes a fixed frame 61 placed at the lower end of the lower flange 2. A guide rod 62 is fixedly connected to the upper end of the fixed frame 61 near the side of the lower flange 2. A lower pressure frame 63 is placed at the upper end of the upper flange 3. A mating groove 64 is opened at the upper end of the lower pressure frame 63. A threaded head 65 is movably connected to the inner side of the mating groove 64. A connecting frame 66 is fixedly connected to the lower end of the threaded head 65. A limit seat 67 is movably connected to the inner side of the connecting frame 66 through a rotating shaft. An internal threaded ring 68 is threadedly connected to the outer side of the threaded head 65 near the upper side of the mating groove 64. A limit block 69 is movably connected inside the lower pressure frame 63. A threaded rod 610 is fixedly connected to the upper end of the fixed frame 61 near the other side of the lower flange 2.

[0022] In this embodiment, the threaded rod 610 extends into the interior of the lower pressure frame 63, and the threaded rod 610 and the lower pressure frame 63 are slidably connected. A nut 611 is threadedly connected to the outer side of the threaded rod 610 near the upper side of the lower pressure frame 63. The guide rod 62 extends into the interior of the lower pressure frame 63, and the guide rod 62 and the lower pressure frame 63 are slidably connected. A baffle 612 is fixedly connected to the upper end of the guide rod 62. The lower pressure frame 63 is located above the fixed frame 61. The lower end of the limiting seat 67 is fixedly connected to the upper end of the fixed frame 61 near the rear side of the guide rod 62. The lower end of the internal threaded ring 68 is in contact with the upper end of the lower pressure frame 63. The lower end of the limiting block 69 is fixedly connected to the upper end of the upper flange 3. There are four sets of limiting blocks 69, two of which are located inside the fixed frame 61. Both sets of limiting blocks 69 are fixedly connected to the lower flange 2. The lower end of the nut 611 is in contact with the upper end of the lower pressure frame 63.

[0023] Specifically, align the fixing bracket 61 and the lower pressure bracket 63 with the lower flange 2 and the upper flange 3 respectively. Then, push the fixing bracket 61 upwards, causing two sets of limiting blocks 69 to engage within the fixing bracket 61. Next, pull it downwards to the lower pressure bracket 63, causing the lower pressure bracket 63 to slide downwards along the guide rod 62, thereby engaging the other two sets of limiting blocks 69 within the lower pressure bracket 63. Then, push the connecting bracket 66 to rotate around the limiting seat 67, rotating the threaded head 65 into the mating groove 64. Then, tighten the internal threaded ring 68 until it contacts the lower pressure bracket 63. Finally, tighten the nut 611 until it contacts the lower pressure bracket. The frame 63, in conjunction with the guide rod 62, can press the valve core, valve disc, and valve seat within the gate valve body 1. By aligning the fixed frame 61 and the lower pressure frame 63 with the lower flange 2 and the upper flange 3 respectively, and by fitting the fixed frame 61 and the lower pressure frame 63 against the lower flange 2 and the upper flange 3, the four sets of limit blocks 69 are respectively locked within the fixed frame 61 and the lower pressure frame 63. This achieves the purpose of facilitating the upper limit of the fixed frame 61 and the lower pressure frame 63 on the lower flange 2 and the upper flange 3, thereby effectively locking the fixed frame 61 and the lower pressure frame 63 onto the lower flange 2 and the upper flange 3.

[0024] In this embodiment, the lower flange 2 is installed at the upper end of the gate valve body 1, the upper flange 3 is installed at the upper end of the lower flange 2, a knob 4 is installed at the upper end of the upper flange 3 near the inner side of the lower pressure frame 63, a docking ring 5 is fixedly connected to one end of the gate valve body 1, and the lower flange 2 is connected to the valve core inside the gate valve body 1.

[0025] Specifically, by connecting the docking ring 5 to the designated water pipe, the gate valve body 1 is connected to the water pipe, allowing the valve core inside the gate valve body 1 to control the water flow in the water pipe.

[0026] Working principle:

[0027] In use, first connect the docking ring 5 to the designated water pipe, thus connecting the gate valve body 1 to the water pipe. This allows the valve core inside the gate valve body 1 to control the water flow in the water pipe. Then, align the fixing bracket 61 and the lower pressure bracket 63 with the lower flange 2 and upper flange 3, respectively. Push the fixing bracket 61 upwards, causing two sets of limit blocks 69 to engage within the fixing bracket 61. Then pull it downwards to the lower pressure bracket 63, causing the lower pressure bracket 63 to slide downwards along the guide rod 62, thereby engaging the other two sets of limit blocks 69 within the lower pressure bracket 63. Next, push the connecting bracket 66 to rotate around the limit seat 67, rotating the threaded head 65 into the docking groove 64. Finally, tighten the internal threaded ring 68 to make it contact the lower pressure bracket. Then, tighten the nut 611, so that the nut 611 contacts the lower pressure frame 63. In turn, the lower pressure frame 63, in cooperation with the guide rod 62, can press the valve core, valve disc, and valve seat in the gate valve body 1. By fixing the fixed frame 61 and the lower pressure frame 63 to correspond to the lower flange 2 and the upper flange 3 respectively, and by making the fixed frame 61 and the lower pressure frame 63 fit against the lower flange 2 and the upper flange 3, the four sets of limit blocks 69 are respectively locked in the fixed frame 61 and the lower pressure frame 63. This can achieve the purpose of locking the fixed frame 61 and the lower pressure frame 63 at the upper limit of the lower flange 2 and the upper flange 3, so that the fixed frame 61 and the lower pressure frame 63 are effectively locked on the lower flange 2 and the upper flange 3.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A gate valve with a pressure line assembly mechanism, comprising a gate valve body (1), a lower flange (2), and an upper flange (3), characterized in that: The lower flange (2) is provided with a pressure wire assembly mechanism (6). The pressure wire assembly mechanism (6) includes a fixed frame (61) placed at the lower end of the lower flange (2). A guide rod (62) is fixedly connected to the upper end of the fixed frame (61) near the lower flange (2). A lower pressure frame (63) is placed at the upper end of the upper flange (3). A mating groove (64) is opened at the upper end of the lower pressure frame (63). A threaded head (65) is movably connected to the inner side of the mating groove (64). A connecting frame (66) is fixedly connected to the lower end of the threaded head (65). A limit seat (67) is movably connected to the inner side of the connecting frame (66) through a rotating shaft. An internal threaded ring (68) is threadedly connected to the outer side of the threaded head (65) near the upper side of the mating groove (64). A limit block (69) is movably connected inside the lower pressure frame (63). A threaded rod (610) is fixedly connected to the upper end of the fixed frame (61) near the other side of the lower flange (2).

2. A gate valve with a pressure line assembly mechanism according to claim 1, characterized in that: The threaded rod (610) extends into the interior of the lower pressure frame (63), and the threaded rod (610) is slidably connected to the lower pressure frame (63). A nut (611) is threadedly connected to the outer side of the threaded rod (610) near the upper side of the lower pressure frame (63).

3. A gate valve with a pressure line assembly mechanism according to claim 2, characterized in that: The guide rod (62) extends into the interior of the lower pressure frame (63), and the guide rod (62) and the lower pressure frame (63) are slidably connected. A baffle (612) is fixedly connected to the upper end of the guide rod (62). The lower pressure frame (63) is located above the fixed frame (61). The lower end of the limiting seat (67) is fixedly connected to the upper end of the fixed frame (61) near the rear side of the guide rod (62).

4. A gate valve with a pressure line assembly mechanism according to claim 3, characterized in that: The lower end of the internal threaded ring (68) is in contact with the upper end of the lower pressure frame (63), and the lower end of the limiting block (69) is fixedly connected to the upper end of the upper flange (3). There are four sets of the limiting blocks (69).

5. A gate valve with a pressure line assembly mechanism according to claim 3, characterized in that: Two sets of the limiting blocks (69) are located inside the fixed frame (61), and both sets of the limiting blocks (69) are fixedly connected to the lower flange (2). The lower end of the nut (611) is in contact with the upper end of the lower pressure frame (63).

6. A gate valve with a pressure line assembly mechanism according to claim 1, characterized in that: The lower flange (2) is installed at the upper end of the gate valve body (1), the upper flange (3) is installed at the upper end of the lower flange (2), a knob (4) is installed on the upper end of the upper flange (3) near the inner side of the lower pressure frame (63), a docking ring (5) is fixedly connected to one end of the gate valve body (1), and the lower flange (2) is connected to the valve core inside the gate valve body (1).

Images