Novel three-way plug valve

Abstract

The utility model relates to the technical field of three-way plug valves, and discloses a novel three-way plug valve which comprises a valve body, three pipelines are fixedly connected to the surface of the valve body, a through groove is formed in the surface of the valve body, a rotating cavity is formed in the valve body, a valve plug is rotatably connected to the interior of the rotating cavity, and the valve plug is fixedly connected to the valve body. The interior of the valve plug is hollow, a rectangular channel is formed in the surface of the valve plug, a mounting plate is fixedly connected to the interior of a through groove, a mounting rod is rotatably connected to the surface of the mounting plate, a connecting plate is fixedly connected to the end of the mounting rod, and through cooperation of the mounting rod, the connecting plate, a driving rod, a first bevel gear, a second bevel gear and other structures, the valve plug can be driven to rotate; according to the pipeline descaling device, descaling operation can be conveniently carried out on the interior of a pipeline, so that the circulation efficiency of the interior of the subsequent pipeline is guaranteed, practicability is high, the frequency of manual additional descaling operation is reduced, the stability of equipment operation is effectively guaranteed, the service life is prolonged, and safety is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of three -way stopcock, concretely to a novel three -way stopcock. BACKGROUND

[0002] The stopcock is the closing piece or plunger-shaped rotary valve, and the channel on the valve plug is communicated or separated from the channel on the valve body by rotating 90 degrees, so as to realize the opening or closing of the valve. The shape of the valve plug of the stopcock can be cylindrical or conical. In the cylindrical valve plug, the channel is generally rectangular; and in the conical valve plug, the channel is trapezoidal.

[0003] Some existing three -way stopcocks will reduce the inner diameter of the pipeline, increase the flow resistance, cause the flow to decrease or the pump power consumption to rise after a long time use, and usually need to be descaled by the staff after a period of use, which undoubtedly increases the work burden of the staff, increases the work content, has poor practicability, is inconvenient to guarantee the stable operation of the equipment, shortens the service life and has safety hazards. In view of this, a novel three -way stopcock is provided to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies of the prior art, the utility model provides a novel three -way stopcock to solve the problem that some existing three -way stopcocks are inconvenient to be descaled.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a novel three -way stopcock, including the valve body, the surface of the valve body is fixedly connected with three pipelines, the surface of the valve body is provided with a through groove, the inside of the valve body is provided with a rotating cavity, the inside of the rotating cavity is rotatably connected with a valve plug, the inside of the valve plug is hollow, the surface of the valve plug is provided with a rectangular channel, the inside of the through groove is fixedly connected with a mounting plate, the surface of the mounting plate is rotatably connected with a mounting rod, the end of the mounting rod is fixedly connected with a connecting plate, the surface of the connecting plate is fixedly connected with two scrapers, the inside of the mounting plate is provided with a cavity, and the inside of the cavity is provided with a connecting assembly.

[0006] Preferably, the connecting assembly comprises a driving rod, the driving rod is rotatably connected with the top wall of the cavity, the lower end of the driving rod is fixedly connected with a first bevel gear, and the outside of the valve plug is provided with a driving assembly.

[0007] Preferably, the rear end of the mounting rod rotatably penetrates into the inside of the cavity, the rear end of the mounting rod is rotatably connected with the inner wall of the cavity, a second bevel gear is fixedly sleeved on the outer surface of the section of the mounting rod located in the inside of the cavity, and the second bevel gear is meshedly connected with the first bevel gear.

[0008] Preferably, the inside of the valve body is provided with an annular groove, the annular groove is communicated with the rotating chamber, the upper end of the driving rod is rotatably penetrated into the inside of the annular groove, and the upper end of the driving rod is rotatably connected with the top wall of the annular groove.

[0009] Preferably, the driving assembly comprises a fixing ring, the fixing ring is fixedly sleeved on the outer surface of the valve plug, the fixing ring extends into the inside of the annular groove, and the surface of the fixing ring is fixedly connected with the gear teeth.

[0010] Preferably, the outer surface of the driving rod located in the inside of the annular groove is fixedly sleeved with a transmission gear, and the transmission gear is in meshing connection with the gear teeth.

[0011] Preferably, the upper surface of the valve plug is fixedly connected with a valve rod, and the valve rod is rotatably penetrated into the inside of the valve body.

[0012] Preferably, the scraper is attached to the inner wall of the pipeline.

[0013] Compared with the prior art, the novel three-way plug valve has the following beneficial effects:

[0014] 1. The novel three-way plug valve realizes convenient descaling operation on the inside of the pipeline through the cooperation of the mounting rod, the connecting plate, the driving rod, the first bevel gear and the second bevel gear, thereby guaranteeing the flow efficiency of the inside of the pipeline, being high in practicality, reducing the frequency of manual descaling operation, effectively guaranteeing the stability of equipment operation, prolonging the service life and being high in safety.

[0015] 2. The novel three-way plug valve enables the staff to perform descaling operation when adjusting the flow direction of the pipeline each time, reduces the operation steps of the staff and further improves the flexibility and practicality of the device as a whole. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the novel three-way plug valve.

[0017] Figure 2 It is a sectional structural schematic view of the valve body.

[0018] Figure 3 It is a sectional structural schematic view of the mounting plate.

[0019] Figure 4 It is Figure 3 It is an enlarged view of A in the middle.

[0020] Figure 5 It is Figure 3 It is an enlarged view of B in the middle.

[0021] Fig. 1, valve body; 2, pipeline; 3, rotating chamber; 4, valve plug; 5, rectangular channel; 6, mounting plate; 7, mounting rod; 8, connecting plate; 9, scraper; 10, cavity; 11, drive rod; 12, first bevel gear; 13, second bevel gear; 14, annular groove; 15, fixed ring; 16, tooth; 17, transmission gear; 18, valve rod; 19, through groove. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Please refer to Figures 1-5 The utility model provides a kind of technical solutions: a new three-way plug valve, the surface of valve body 1 is fixedly connected with three pipelines 2, the surface of valve body 1 is provided with through groove 19, the inside of valve body 1 is provided with rotating chamber 3, three pipelines 2 are communicated by through groove 19 and rotating chamber 3, the inside of rotating chamber 3 is rotatably connected with valve plug 4, the inside of valve plug 4 is hollow, the surface of valve plug 4 is provided with rectangular channel 5, three pipelines 2 are communicated by valve plug 4 and rectangular channel 5, the inside of through groove 19 is fixedly connected with mounting plate 6, the surface of mounting plate 6 is rotatably connected with mounting rod 7, the end of mounting rod 7 is fixedly connected with connecting plate 8, the surface of connecting plate 8 is fixedly connected with two scrapers 9, the inside of mounting plate 6 is provided with cavity 10, and connecting assembly is arranged in the inside of cavity 10.

[0024] The inner wall of scraper 9 and pipeline 2 is attached, and the main part of scraper 9 is made of stainless steel, so as to reduce cost, and tungsten carbide particles are inlaid on the edge, so as to enhance wear resistance.

[0025] Connecting assembly includes drive rod 11, drive rod 11 is rotatably connected with the top wall of cavity 10, the lower end of drive rod 11 is fixedly connected with first bevel gear 12, the outside of valve plug 4 is provided with drive assembly.

[0026] The rear end of mounting rod 7 rotatably penetrates into the inside of cavity 10, the rear end of mounting rod 7 is rotatably connected with the inner wall of cavity 10, and the outer surface of the section of mounting rod 7 located in the inside of cavity 10 is fixedly sleeved with second bevel gear 13, and second bevel gear 13 is meshingly connected with first bevel gear 12.

[0027] The inside of the valve body 1 is provided with an annular groove 14, the annular groove 14 is communicated with the rotating chamber 3, the upper end of the driving rod 11 is rotatably penetrated into the inside of the annular groove 14, and the upper end of the driving rod 11 is rotatably connected with the top wall of the annular groove 14.

[0028] The driving assembly comprises a fixing ring 15, the fixing ring 15 is fixedly sleeved on the outer surface of the valve plug 4, the fixing ring 15 extends into the inside of the annular groove 14, and the surface of the fixing ring 15 is fixedly connected with a gear tooth 16.

[0029] The outer surface of the section of the driving rod 11 located in the inside of the annular groove 14 is fixedly sleeved with a transmission gear 17, and the transmission gear 17 is meshedly connected with the gear tooth 16.

[0030] The upper surface of the valve plug 4 is fixedly connected with a valve rod 18, and the valve rod 18 is rotatably penetrated out of the inside of the valve body 1.

[0031] Working principle:

[0032] When the staff needs to adjust the three-way cock valve, the valve rod 18 is rotated to drive the rotation of the valve plug 4, the rotation of the valve plug 4 can realize the switching of the communication state among the three pipelines 2, and the rotation of the valve plug 4 drives the rotation of the fixing ring 15, and because the gear tooth 16 on the surface of the fixing ring 15 is meshed with the transmission gear 17, when the valve plug 4 drives the rotation of the fixing ring 15, the transmission gear 17 is also driven to rotate, the rotation of the transmission gear 17 drives the rotation of the driving rod 11, the rotation of the driving rod 11 drives the rotation of the first bevel gear 12, the rotation of the first bevel gear 12 drives the rotation of the second bevel gear 13, the rotation of the second bevel gear 13 drives the rotation of the mounting rod 7, the rotation of the mounting rod 7 drives the rotation of the connecting plate 8, the rotation of the connecting plate 8 drives the movement of the scraper 9, and at this time, the scraper 9 can clean the inner wall of the pipeline 2, so that the pipeline 2 can be automatically cleaned during the adjustment of the communication state of the pipeline 2 by the staff.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A novel three-way plug valve, comprising a valve body (1), characterized in that: Three pipes (2) are fixedly connected to the surface of the valve body (1). A through groove (19) is opened on the surface of the valve body (1). A rotating chamber (3) is opened inside the valve body (1). A valve plug (4) is rotatably connected inside the rotating chamber (3). The valve plug (4) is hollow inside. A rectangular channel (5) is opened on the surface of the valve plug (4). An installation plate (6) is fixedly connected inside the through groove (19). An installation rod (7) is rotatably connected to the surface of the installation plate (6). A connecting plate (8) is fixedly connected to the end of the installation rod (7). Two scrapers (9) are fixedly connected to the surface of the connecting plate (8). A cavity (10) is opened inside the installation plate (6). A connecting component is provided inside the cavity (10).

2. The novel three-way plug valve according to claim 1, characterized in that: The connecting assembly includes a drive rod (11), which is rotatably connected to the top wall of the cavity (10). The lower end of the drive rod (11) is fixedly connected to a first bevel gear (12), and the valve plug (4) is provided with a drive assembly on its exterior.

3. A novel three-way plug valve according to claim 2, characterized in that: The rear end of the mounting rod (7) rotates through into the interior of the cavity (10), and the rear end of the mounting rod (7) is rotatably connected to the inner wall of the cavity (10). A second bevel gear (13) is fixedly sleeved on a section of the outer surface of the mounting rod (7) inside the cavity (10), and the second bevel gear (13) and the first bevel gear (12) are meshed together.

4. A novel three-way plug valve according to claim 2, characterized in that: The valve body (1) has an annular groove (14) inside, which is connected to the rotating chamber (3). The upper end of the drive rod (11) rotates through the interior of the annular groove (14), and the upper end of the drive rod (11) is rotatably connected to the top wall of the annular groove (14).

5. A novel three-way plug valve according to claim 4, characterized in that: The drive assembly includes a retaining ring (15) which is fixedly sleeved on the outer surface of the valve plug (4). The retaining ring (15) extends into the interior of the annular groove (14), and teeth (16) are fixedly connected to the surface of the retaining ring (15).

6. A novel three-way plug valve according to claim 5, characterized in that: The drive rod (11) is fixedly fitted with a transmission gear (17) on the outer surface of a section inside the annular groove (14), and the transmission gear (17) and the teeth (16) are meshed together.

7. A novel three-way plug valve according to claim 5, characterized in that: The valve stem (18) is fixedly connected to the upper surface of the valve plug (4), and the valve stem (18) rotates through the interior of the valve body (1).

8. A novel three-way plug valve according to claim 1, characterized in that: The scraper (9) and the inner wall of the pipe (2) are attached.

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