Mechanical valve

Abstract

The utility model discloses a mechanical valve, which relates to the technical field of mechanical valves and comprises a valve body, protective components arranged at two ends of the valve body, a buffer component arranged at one end in the valve body, an anti-backflow component arranged at the other end in the valve body, a valve core arranged in the middle of the valve body, and flanges I fixedly mounted at two end parts of the valve body, a sleeve is arranged in the middle of the valve body, a threaded sleeve is arranged above the sleeve and connected with the sleeve through a second flange, the diameter of the threaded sleeve is smaller than that of the sleeve, threads of the threaded sleeve are connected with a valve rod, the lower end of the valve rod penetrates through the sleeve and can move along the sleeve, the lower end of the valve rod is fixedly connected with a valve element, and the valve element can move into the sleeve. The backflow prevention mechanism is arranged in the valve body, so that the phenomenon of liquid backflow caused by abrasion of the valve element can be effectively prevented; and liquid or gas can be buffered through the buffer rod, damage to the valve body is avoided, and therefore the use efficiency and practicability of the mechanical valve are improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical valve technology, specifically to a mechanical valve. Background Technology

[0002] Mechanical valves are widely used in water pipes. They rely on a continuously rotating screw to control the opening and closing of the valve. With the development of technology and the continuous use of mechanical valves, different types of bidirectional mechanical valves have appeared on the market.

[0003] Currently, during prolonged use, the valve core of mechanical valves on the market is prone to wear, which reduces the sealing performance of the valve core and causes fluid backflow. Furthermore, in practical applications, mechanical valves can be damaged by excessive liquid impact, thus affecting their service life. Utility Model Content

[0004] The purpose of this invention is to provide a mechanical valve to address the shortcomings of existing technologies.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mechanical valve, including a valve body, with protective components at both ends of the valve body, a buffer component at one end inside the valve body, an anti-backflow component at the other end inside the valve body, a valve core in the middle of the valve body, flanges fixedly installed at both ends of the valve body, a sleeve in the middle of the valve body, a threaded sleeve above the sleeve, the sleeve and the threaded sleeve being connected by a flange, the diameter of the threaded sleeve being smaller than the diameter of the sleeve, the thread of the threaded sleeve being threadedly connected to a valve stem, the lower end of the valve stem passing through the sleeve and being able to move along the sleeve, the lower end of the valve stem being fixedly connected to the valve core, and the valve core being able to move into the sleeve.

[0006] As described above, in a mechanical valve, the protective assembly includes a circular sleeve, an arc-shaped plate, and a bolt. Circular sleeves are fitted at both ends of the valve body. Several evenly distributed arc-shaped plates are provided inside the circular sleeve. Several evenly distributed threaded holes are opened on the outer wall of the circular sleeve. The bolt passes through the threaded holes and is threadedly connected to the threaded holes. The end of the bolt is rotatably connected to the corresponding arc-shaped plate.

[0007] As described above, in a mechanical valve, the buffer assembly includes a round rod and a buffer rod. The round rod is located at one end inside the valve body, and the round rod is fixedly connected to the inner wall of the valve body by several evenly distributed buffer rods.

[0008] As described above, in a mechanical valve, the anti-backflow assembly includes a baffle, a spring hinge shaft, and a connecting rod. The upper part of the baffle is rotatably connected to the inner wall of the valve body via the spring hinge shaft. A connecting rod is hinged to the lower part of one side of the baffle. The upper end of the connecting rod is rotatably connected to a support rod, and the upper end of the support rod is rotatably connected to the inner wall of the valve body.

[0009] As described above, in a mechanical valve, a sealing layer is provided on the surface of the valve core.

[0010] Compared with the prior art, the beneficial effects of this utility model are: by setting an anti-backflow mechanism inside the valve body, it can effectively prevent the liquid backflow phenomenon caused by valve core wear; the buffer rod can buffer the liquid or gas, avoiding damage to the valve body, thereby improving the efficiency and practicality of the mechanical valve. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 for Figure 1 A cross-sectional view along line AA.

[0014] Reference numerals: 1-Valve body, 2-Protective assembly, 21-Round sleeve, 22-Arc plate, 23-Bolt, 24-Threaded hole, 3-Buffer assembly, 31-Round rod, 32-Buffer rod, 4-Anti-backflow assembly, 41-Baffle, 42-Spring hinge shaft, 43-Connecting rod, 44-Support rod, 5-Valve core, 6-Flange one, 7-Sleeve, 8-Threaded sleeve, 9-Flange two, 10-Valve stem. Detailed Implementation

[0015] 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.

[0016] like Figures 1 to 2As shown in the figure, this embodiment discloses a mechanical valve, including a valve body 1. Protective components 2 are provided at both ends of the valve body 1. Each protective component 2 includes a circular sleeve 21, an arc-shaped plate 22, and a bolt 23. A circular sleeve 21 is fitted onto both ends of the valve body 1. The interior of the circular sleeve 21 has several evenly distributed arc-shaped plates 22. Several evenly distributed threaded holes 24 are opened on the outer wall of the circular sleeve 21. The bolt 23 passes through the threaded holes 24 and is threadedly connected to them. The end of the bolt 23 is rotatably connected to the corresponding arc-shaped plate 22. Rotating the bolt 23 causes the arc-shaped plate 22 to move, bringing it into contact with the valve body 1. The arc-shaped plate 22 can then be clamped onto the valve body 1, thereby fixing the circular sleeve 21 to the valve body 1. Thus, the circular sleeve 21 can protect the valve body 1.

[0017] A buffer assembly 3 is provided at one end inside the valve body 1. The buffer assembly 3 includes a round rod 31 and a buffer rod 32. The round rod 31 is provided at one end inside the valve body 1. The round rod 31 is fixedly connected to the inner wall of the valve body 1 by several evenly distributed buffer rods 32. When liquid or gas flows inside the valve body 1, the buffer rods 32 can buffer the liquid or gas, avoiding damage to the valve body 1, thereby improving the efficiency and practicality of the mechanical valve.

[0018] The other end of the valve body 1 contains an anti-backflow assembly 4, which includes a baffle 41, a spring hinge shaft 42, and a connecting rod 43. The upper part of the baffle 41 is rotatably connected to the inner wall of the valve body 1 via the spring hinge shaft 42. The lower part of one side of the baffle 41 is hinged to the connecting rod 43, and the upper end of the connecting rod 43 is rotatably connected to a support rod 44. The upper end of the support rod 44 is rotatably connected to the inner wall of the valve body 1. When the valve body 1 is in the open state, the pressure and impact force of the water flow will push the baffle 41 to the right. At this time, the baffle 41 will move away from the support rod 44, and the water flow will flow to the right. When valve body 1 is in the closed state, its baffle 41 loses the pressure and impact force of the water flow and moves to the left under the action of spring hinge shaft 42, so that baffle 41 is reset. At the same time, when turbulence or even backflow of liquid or gas occurs, under the action of spring hinge shaft 42 and connecting rod 43, its reaction pushes baffle 41 to reset to the closed state, preventing water backflow on the right side of valve body 1. This avoids the backflow phenomenon caused by wear of valve core 5 during long-term use of mechanical valves, which reduces the sealing performance, and improves the practicality of valve.

[0019] A valve core 5 is provided in the middle of the valve body 1, and a sealing layer is provided on the surface of the valve core 5. When the valve core 5 is closed, the sealing layer can make the valve core 5 better seal the valve body 1, making the device more convenient to use.

[0020] Flange 6 is fixedly installed at both ends of valve body 1. Sleeve 7 is provided in the middle of valve body 1. Screw sleeve 8 is provided above sleeve 7. Sleeve 7 and screw sleeve 8 are connected by flange 9. The diameter of screw sleeve 8 is smaller than the diameter of sleeve 7. Screw sleeve 8 is threadedly connected to valve stem 10. The lower end of valve stem 10 passes through sleeve 7 and can move along sleeve 7. The lower end of valve stem 10 is fixedly connected to valve core 5. Valve core 5 can move into sleeve 7.

[0021] Working principle:

[0022] Rotating bolt 23 causes the arc-shaped plate 22 to move, bringing it into contact with the valve body 1. The arc-shaped plate 22 then clamps onto the valve body 1, thus fixing the sleeve 21 to the valve body 1. The sleeve 21 then protects the valve body 1. When liquid or gas flows inside the valve body 1, the buffer rod 32 buffers the liquid or gas, preventing damage to the valve body 1 and improving the efficiency and practicality of the mechanical valve. When the valve body 1 is open, the pressure and impact of the water flow push the baffle 41 to the right, causing it to move away from the support rod 44, and the water flows to the right. When valve body 1 is in the closed state, its baffle 41 loses the pressure and impact force of the water flow and moves to the left under the action of spring hinge shaft 42, causing baffle 41 to reset. At the same time, when turbulence or even backflow of liquid or gas occurs, under the action of spring hinge shaft 42 and connecting rod 43, its reaction pushes baffle 41 to reset to the closed state, preventing water backflow on the right side of valve body 1. This avoids the backflow phenomenon caused by wear of valve core 5 during long-term use of mechanical valves, which reduces the sealing performance and improves the practicality of the valve. When valve core 5 is closed, the sealing layer can make the sealing performance of valve core 5 to valve body 1 better, making the device more convenient to use.

[0023] It should be noted that the above embodiments are only specific and clear descriptions of the technical solutions and features of this application. Solutions or features that are prior art or common knowledge to those skilled in the art will not be described in detail in the above embodiments.

[0024] Furthermore, the technical solutions of this application are not limited to the above embodiments. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A mechanical valve, characterized by: The utility model provides a valve, including valve body (1), both ends of valve body (1) are provided with protection assembly (2), one end inside valve body (1) is provided with buffer assembly (3), the other end inside valve body (1) is provided with anti -backflow assembly (4), the middle part of valve body (1) is provided with valve core (5), both ends of valve body (1) are fixedly installed flange one (6), the middle part of valve body (1) is provided with sleeve (7), the top of sleeve (7) is equipped with screw sleeve (8), sleeve (7) is connected with screw sleeve (8) through flange two (9), the diameter of screw sleeve (8) is less than the diameter of sleeve (7), and screw sleeve (8) is connected with valve stem (10), the lower end of valve stem (10) passes through sleeve (7) and can move along sleeve (7), and the lower end of valve stem (10) is fixedly connected with valve core (5), and valve core (5) can move into sleeve (7).

2. A mechanical valve according to claim 1, wherein: The protection assembly (2) includes a circular sleeve (21), an arc plate (22) and a bolt (23), both ends of the valve body (1) are sleeved with the circular sleeve (21), the inside of the circular sleeve (21) is provided with a plurality of evenly distributed arc plates (22), a plurality of evenly distributed screw holes (24) are formed on the outer wall of the circular sleeve (21), the bolt (23) passes through the screw hole (24) and is screwed with the screw hole (24), and the end of the bolt (23) is rotatably connected with the corresponding arc plate (22).

3. A mechanical valve according to claim 1, wherein: The buffer assembly (3) includes a circular rod (31) and a buffer rod (32), one end inside the valve body (1) is provided with the circular rod (31), and the circular rod (31) is fixedly connected with the inner wall of the valve body (1) through a plurality of evenly distributed buffer rods (32).

4. A mechanical valve according to claim 1, wherein: The anti-backflow assembly (4) includes a baffle (41), a spring hinge shaft (42) and a connecting rod (43), the upper side of the baffle (41) is rotatably connected with the inner wall of the valve body (1) through the spring hinge shaft (42), the lower side of one side of the baffle (41) is hingedly connected with the connecting rod (43), the upper end of the connecting rod (43) is rotatably connected with a support rod (44), and the upper end of the support rod (44) is rotatably connected with the inner wall of the valve body (1).

5. A mechanical valve according to claim 1, wherein: The surface of the valve core (5) is provided with a sealing layer.

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