Precise valve casting for high-pressure-resistance water-based industrial pipeline

Abstract

The utility model discloses a precise valve casting for a high-pressure-resistance water-based industrial pipeline, which relates to the technical field of valves and comprises a valve body, a valve core unit and a limiting unit. The valve body is a hollow cylinder, and an outlet is formed in the right end of the valve body. Each valve element unit comprises a threaded rod, a threaded sleeve, a connecting rod, valve plates, a round rod and a connecting rod assembly, the two ends of the connecting rod are fixedly connected with the threaded rod respectively, threads in opposite directions are adopted for the two threaded rods, the threaded rods are in threaded connection with the threaded sleeves respectively, and the upper ends and the lower ends of the threaded sleeves are connected with the left ends and the right ends of the two valve plates through the connecting rod assemblies respectively. The right end of the right threaded rod is fixedly connected with a round rod; when the valve is closed, the pressures of the two fluids are equal and opposite to each other, the two fluids jointly extrude the valve element, the pressures of the two fluids are mutually offset when the valve is closed, the valve can be used in high-pressure fluids, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely is a kind of high pressure-resistant water-based industrial pipeline precision valve casting. BACKGROUND

[0002] With the continuous improvement of current productivity, the output value of industry also gradually breaks through, as the traditional industrial plant complex and different solution transmission pipeline, and based on the characteristics of industrial production, part of pipeline exists steam transmission-based pipeline, as the pipeline used, often accompanied by higher pressure.

[0003] Among them, the authorized announcement number CN217153059U in the prior art proposes a high pressure-resistant water-based industrial pipeline precision valve casting, by setting valve core, spring and connecting piece, the water hole is staggered when the valve core rotates, so that the water cannot pass through, at the same time, the valve core drives the rotating disc to rotate synchronously by rotating, so that the connecting piece is moved upward by the inclined seat on the surface in the process of rotating the rotating disc, so that the connecting piece pushes the sealing plate to slide in the sealing hole, and then moves to a certain height to cover one side of the valve core.

[0004] But the scheme is one-way water pressure extrusion valve core, high-pressure fluid is used for a long time, and then easy to appear slight deformation and cause leakage, therefore, we propose a high pressure-resistant water-based industrial pipeline precision valve casting. INVENTION CONTENTS

[0005] The technical problem to be solved by the utility model is to overcome the defects of the prior art, provide a high pressure-resistant water-based industrial pipeline precision valve casting, divide the entering fluid into two parts, the fluid pressure at two places is equal and opposite, and the valve core is extruded together, the fluid pressure at two places is offset when the valve is closed, can be used in high-pressure fluid, prolong the service life, and the problems in the background art can be effectively solved.

[0006] To achieve the above object, the utility model provides the following technical scheme: a high pressure-resistant water-based industrial pipeline precision valve casting, including valve body, valve core unit and limiting unit;

[0007] Valve body: hollow cylinder, the right end of the valve body is equipped with outlet;

[0008] Valve core unit: contains threaded rod, threaded sleeve, connecting rod, valve plate, round rod and connecting rod assembly, the two ends of the connecting rod are fixedly connected with threaded rod respectively, two threads with opposite directions are used, the threaded rod is threadedly connected with threaded sleeve respectively, the upper and lower ends of the threaded sleeve are connected with the left and right ends of two valve plates through connecting rod assembly respectively, and the right end of the right threaded rod is fixedly connected with the round rod;

[0009] Limiting unit: installed in the valve body.

[0010] Threaded rods are used to thread the threaded sleeve, converting rotary motion into horizontal motion in the left and right directions. Because the two threaded rods have opposite threaded directions and the same rotational direction and speed under the connection of the connecting rod, the rotation of the connecting rod causes the two threaded sleeves to move horizontally closer and farther apart, and achieves self-locking, that is, the threaded sleeve cannot rotate the threaded rod, and the valve plate is simultaneously opened and closed.

[0011] Further, the connecting rod assembly includes movable ears and movable rods, the upper and lower ends of the threaded sleeve are respectively fixedly connected to the movable ears in the middle, the movable ears are movably connected to the movable rods through the movable shafts, one end of the movable rods is close to the threaded rods, and the other end of the movable rods is movably connected to the movable ears on the upper side and the lower side through the movable shafts, and the movable ears on the upper side and the lower side are respectively fixedly connected to the left and right ends of the two valve plates on the side close to each other.

[0012] The movable ears are movably connected to the movable rods through the movable shafts, so that the angle between the movable rods and the valve plates can be adjusted, and the angle between the valve plates and the threaded sleeves can be adjusted, so that the two valve plates are driven to move away from each other when the two threaded sleeves move close to each other, and the water inlet pipes are gradually closed, and the two valve plates are driven to move close to each other when the two threaded sleeves move away from each other, and the water inlet pipes are gradually opened.

[0013] Further, the valve core unit further includes a motor mounting plate and a motor, the left end of the left threaded rod is fixedly connected to the output shaft of the motor, the middle part of the output shaft of the motor is rotatably connected to the middle part of the left side of the valve body, the bottom end of the motor is fixedly connected to the motor mounting plate, the right end of the motor mounting plate is fixedly connected to the left side of the valve body, and the input end of the motor is electrically connected to an external power supply through an external control switch group.

[0014] The motor mounting plate is used for mounting the motor, and the motor provides rotary power to drive the threaded rod to rotate.

[0015] Further, the water inlet pipes are provided, the upper side and the lower side of the valve body correspond to the positions of the valve plates, respectively, and the water inlet pipes are arranged, two ends of the two water inlet pipes away from each other are respectively connected to the liquid supply systems with equal pressure.

[0016] The water inlet pipes are used for water inlet, because the water inlet directions are opposite and the water inlet pressures are equal, the valve plates are jointly extruded, the pressure is offset, the sealing performance is enhanced, and the service life is prolonged.

[0017] Further, the limiting unit includes a bearing and a bearing cross arm, the middle part of the round rod is rotatably connected to the bearing, and the front end and the rear end of the bearing are respectively fixedly connected to the bearing cross arms, and the sections of the two bearing cross arms away from the bearing are respectively fixedly connected to the inner walls of the valve body.

[0018] The bearing is used for rotatably connecting the round rod, and the bearing cross arm is used for maintaining the stability of the round rod, the threaded rod and the connecting rod during rotation.

[0019] Further, the slide rod and the slide sleeve, the front and rear ends of the threaded sleeve are fixedly connected with the slide sleeves respectively, the slide sleeves on the same side of the front and rear are slidably connected with the slide rods on the same side respectively, the left end of the slide rod is fixedly connected with the left surface of the inner wall of the valve body, and the right end of the slide rod is fixedly connected with the corresponding bearing cross arm.

[0020] The mutual sliding connection of the slide rod and the slide sleeve is used for keeping that the threaded sleeve can only be displaced in the axial direction of the threaded rod and preventing the threaded sleeve from rotating.

[0021] Compared with the prior art, the high-pressure-resistant precision valve casting for water-based industrial pipelines has the following advantages:

[0022] 1. The high-pressure-resistant precision valve casting for water-based industrial pipelines divides the incoming fluid into two parts, and the fluid pressure at the two parts is equal and opposite, so that the two fluid pressures are offset when the valve is closed, and the high-pressure-resistant precision valve casting can be used in high-pressure fluid and prolongs the service life.

[0023] 2. The high-pressure-resistant precision valve casting for water-based industrial pipelines drives two opposite threaded rods to rotate in the same direction by a motor, drives two threaded sleeves to move close to or away from each other, and finally drives the upper and lower valve plates to open and close.

[0024] 3. The high-pressure-resistant precision valve casting for water-based industrial pipelines adopts the mutual sliding connection of the slide sleeve and the slide rod, keeps the threaded sleeve moving horizontally under the driving of the threaded rod, limits the rotation of the threaded sleeve, and achieves the movement of the two threaded sleeves close to or away from each other. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structural schematic view of the utility model;

[0026] Figure 2 It is a structural schematic view of the utility model Figure 1 It is a local enlarged structural schematic view of A in the utility model;

[0027] Figure 3 It is a structural schematic view of the utility model.

[0028] In the figure: 1 valve body, 2 water inlet pipe, 3 valve core unit, 31 threaded rod, 32 threaded sleeve, 33 connecting rod, 34 valve plate, 35 round rod, 36 movable lug, 37 movable rod, 38 motor mounting plate, 39 motor, 4 limiting unit, 41 bearing, 42 bearing cross arm, 43 slide rod, 44 slide sleeve. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0030] Please refer to Figures 1-3 The embodiment provides a technical scheme: a high-pressure-resistant precision valve casting for water-based industrial pipelines, which comprises a valve body 1, a valve core unit 3 and a limiting unit 4.

[0031] The valve body 1 is a hollow cylinder, and the right end of the valve body 1 is provided with an outlet.

[0032] The valve core unit 3 comprises a threaded rod 31, a threaded sleeve 32, a connecting rod 33, a valve plate 34, a round rod 35 and a connecting rod assembly. The two ends of the connecting rod 33 are fixedly connected with the threaded rod 31, the two threaded rods 31 adopt threads in opposite directions, the threaded rod 31 is threadedly connected with the threaded sleeve 32, the upper and lower ends of the threaded sleeve 32 are connected with the left and right ends of the two valve plates 34 through the connecting rod assembly, and the right end of the right threaded rod 31 is fixedly connected with the round rod 35.

[0033] The limiting unit 4 is installed in the valve body 1.

[0034] The limiting unit 4 comprises a bearing 41 and a bearing cross arm 42. The middle part of the round rod 35 is rotatably connected with the bearing 41, and the front and rear ends of the bearing 41 are fixedly connected with the bearing cross arms 42. The two bearing cross arms 42 are fixedly connected with the inner walls of the valve body 1 away from the bearing 41.

[0035] The bearing 41 is used for rotatably connecting the round rod 35, and the bearing cross arm 42 is used for maintaining the stability of the round rod 35, the threaded rod 31 and the connecting rod 33 during rotation.

[0036] The sliding rod 43 and the sliding sleeve 44 are fixedly connected with the sliding sleeves 44 at the front and rear ends of the threaded sleeve 32. The sliding sleeves 44 on the same side are slidably connected with the sliding rods 43 on the same side. The left end of the sliding rod 43 is fixedly connected with the left surface of the inner wall of the valve body 1, and the right end of the sliding rod 43 is fixedly connected with the corresponding bearing cross arm 42.

[0037] The mutual sliding connection of the sliding rod 43 and the sliding sleeve 44 is used for maintaining that the threaded sleeve 32 can only move in the axial direction of the threaded rod 31, and preventing the threaded sleeve 32 from rotating.

[0038] Threaded rod 31 is used for threaded connection threaded sleeve 32, the rotation motion is converted into horizontal motion in left and right direction, because the two threaded rods 31 are opposite in threaded direction, and the two threaded rods 31 keep the same steering and rotating speed under the connection of connecting rod 33, so that the rotation of connecting rod 33 makes the two threaded sleeves 32 move horizontally close and far away, and realizes self-locking, that is, threaded sleeve 32 cannot rotate threaded rod 31, and valve plate 34 is simultaneously opened and closed two water inlet pipes 2.

[0039] Connecting rod assembly includes movable ears 36 and movable rods 37, the upper and lower ends of threaded sleeve 32 are fixedly connected with movable ears 36 in the middle, movable ears 36 are movably connected with movable rods 37 through movable shafts, one end of movable rods 37 close to threaded rods 31, and the other end of movable rods 37 is movably connected with upper and lower movable ears 36 through movable shafts, and the upper and lower movable ears 36 are fixedly connected with the left and right ends of the side of two valve plates 34 close to each other.

[0040] Movable ears 36 are movably connected with movable rods 37 through movable shafts, the angle between movable rods 37 and valve plates 34 can be adjusted, the angle between valve plates 34 and threaded sleeves 32 can be adjusted, two valve plates 34 are driven to move away from each other when two threaded sleeves 32 move close to each other, and two valve plates 34 are driven to move close to each other when two threaded sleeves 32 move away from each other.

[0041] Valve core unit 3 also includes motor mounting plate 38 and motor 39, the left end of left threaded rod 31 is fixedly connected with the output shaft of motor 39, the middle part of the output shaft of motor 39 is rotatably connected with the middle part of the left side of valve body 1, the bottom end of motor 39 is fixedly connected with motor mounting plate 38, the right end of motor mounting plate 38 is fixedly connected with the left side of valve body 1, and the input end of motor 39 is electrically connected with an external power supply through an external control switch group.

[0042] Motor mounting plate 38 is used for mounting motor 39, and motor 39 provides rotating power to drive threaded rod 31 to rotate.

[0043] The utility model also includes water inlet pipe 2, water inlet pipe 2 is arranged in the corresponding position of valve body 1 and valve plate 34, and the two ends of two water inlet pipes 2 are connected with an equal pressure liquid supply system.

[0044] Water inlet pipe 2 is used for water inlet, because the water inlet direction is opposite and the water inlet pressure is equal, the valve plate 34 is squeezed, the pressure is offset, the sealing property is enhanced, and the service life is prolonged.

[0045] The working principle of the high-pressure-resistant precision valve casting for water-based industrial pipeline provided by the utility model is as follows:

[0046] Threaded rod 31 is used to screw threaded sleeve 32, and converts the rotary motion into horizontal motion in left and right direction. Since the two threaded rods 31 have opposite screwing directions, and the two threaded rods 31 keep the same steering and rotating speed under the connection of connecting rod 33, the rotation of connecting rod 33 makes the two threaded sleeves 32 move horizontally close and far away, and realizes self-locking, that is, threaded sleeve 32 cannot rotate threaded rod 31, and valve plate 34 can be opened and closed simultaneously. The movable ear 36 is connected to the movable rod 37 through the movable shaft, and the angle between the movable rod 37 and the valve plate 34 can be adjusted, and the angle between the valve plate 34 and the threaded sleeve 32 can be adjusted, so that the two valve plates 34 are driven to move away from each other when the two threaded sleeves 32 move close to each other, and gradually close the water inlet pipe 2, and the two valve plates 34 are driven to move close to each other when the two threaded sleeves 32 move away from each other, and gradually open the water inlet pipe 2. Motor mounting plate 38 is used to install motor 39, and motor 39 provides rotary power to drive threaded rod 31 to rotate. Water inlet pipe 2 is used for water inlet. Since the water inlet direction is the same and the water inlet pressure is equal, the valve plate 34 is squeezed together, the pressure is offset, the sealing performance is enhanced, and the service life is prolonged. Bearing 41 is used to rotate connecting rod 35, and bearing cross arm 42 is used to keep the stability of rotating circular rod 35, threaded rod 31 and connecting rod 33. The mutual sliding connection of slide rod 43 and slide sleeve 44 is used to keep threaded sleeve 32 only move in the axial direction of threaded rod 31, and prevent threaded sleeve 32 from rotating.

[0047] It is worth noting that the motor 39 disclosed in the above embodiment should adopt a servo motor, and the external control switch group controls the working of the motor 39 by using the method commonly used in the prior art.

[0048] The above is only an embodiment of the present application, and does not limit the patent range of the present application. Any equivalent structure or equivalent process conversion, or direct or indirect application in other related technical fields, which is made by using the contents of the present application specification and drawings, is also included in the patent protection range of the present application.

Claims

1. A high pressure water resistant precision valve casting for industrial piping, characterized by: It includes valve body (1), valve core unit (3) and limiting unit (4); Valve body (1): hollow cylinder, the right end of the valve body (1) is provided with an outlet; Valve core unit (3): contains threaded rod (31), threaded sleeve (32), connecting rod (33), valve plate (34), round rod (35) and connecting rod assembly, the two ends of the connecting rod (33) are respectively fixedly connected with the threaded rod (31), the two threaded rods (31) are respectively threadedly connected with the threaded sleeve (32), the upper and lower ends of the threaded sleeve (32) are respectively connected with the left and right ends of the two valve plates (34) through the connecting rod assembly, and the right end of the right threaded rod (31) is fixedly connected with the round rod (35); The limiting unit (4) is installed in the valve body (1).

2. A high pressure water resistant precision valve casting for industrial pipes as claimed in claim 1, wherein: The connecting rod assembly contains movable ears (36) and movable rods (37), the upper and lower ends of the threaded sleeve (32) are respectively fixedly connected with the movable ears (36) in the middle, the movable ears (36) are movably connected with the movable rods (37) close to one end of the threaded rod (31) through the movable shaft, and the other end of the movable rod (37) away from the threaded rod (31) is movably connected with the movable ears (36) on the upper and lower sides through the movable shaft, and the movable ears (36) on the upper and lower sides are respectively fixedly connected with the left and right ends of the two valve plates (34) close to each other.

3. A high pressure water resistant precision valve casting for industrial pipes as claimed in claim 2, wherein: The valve core unit (3) further contains a motor mounting plate (38) and a motor (39), the left end of the left threaded rod (31) is fixedly connected with the output shaft of the motor (39), the middle part of the output shaft of the motor (39) is rotatably connected with the left side surface of the valve body (1), the bottom end of the motor (39) is fixedly connected with the motor mounting plate (38), the right end of the motor mounting plate (38) is fixedly connected with the left side surface of the valve body (1), and the input end of the motor (39) is electrically connected with an external power supply through an external control switch group.

4. A high pressure water resistant precision valve casting for industrial pipes as claimed in claim 3, wherein: It also includes water inlet pipes (2), the valve body (1) and the valve plate (34) are respectively provided with water inlet pipes (2) at corresponding positions on the upper and lower sides, and the two water inlet pipes (2) are respectively connected with the liquid supply system with equal pressure away from each other.

5. A high pressure water resistant precision valve casting for industrial pipes as claimed in claim 4, wherein: The limiting unit (4) contains a bearing (41) and a bearing cross arm (42), the middle part of the round rod (35) is rotatably connected with the bearing (41), the front and rear ends of the bearing (41) are respectively fixedly connected with the bearing cross arm (42), and the bearing cross arms (42) away from the bearing (41) are respectively fixedly connected with the inner wall of the valve body (1).

6. A high pressure water resistant precision valve casting for industrial pipes as claimed in claim 5 wherein: Sliding rod (43) and sliding sleeve (44), the front and rear ends of the threaded sleeve (32) are respectively fixedly connected with the sliding sleeve (44), the sliding sleeves (44) on the same side are respectively slidably connected with the sliding rods (43) on the same side, the left end of the sliding rod (43) is fixedly connected with the left surface of the inner wall of the valve body (1), and the right end of the sliding rod (43) is fixedly connected with the corresponding bearing cross arm (42).

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