Filter cloth filtering installation structure of discharge valve

Abstract

The utility model belongs to the field of pharmaceutical mechanical equipment, and particularly relates to a filter cloth filtering installation structure of a discharging valve, which comprises a valve body, the valve body is provided with a feeding port, a discharging port and a valve cavity communicated with the feeding port and the discharging port, a valve core is arranged in the valve cavity, a filtering device is arranged on the valve core, and the filtering device is provided with a filter screen. The filtering device comprises a filtering supporting plate with a plurality of through holes and filtering cloth fixedly laid on the filtering supporting plate, the filtering supporting plate is fixedly connected with the valve element, a liquid discharging cavity is formed between the filtering supporting plate and the valve element, and the liquid discharging cavity is communicated with a liquid discharging channel. The utility model provides a filter cloth filtering and mounting structure of a discharge valve, which realizes filtering through a filter cloth filtering device in the discharge valve and meets the technical production requirements of corrosive materials or materials which are not allowed to be in contact with metal materials.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of pharmaceutical machinery equipment, concretely relates to a filter cloth filter installation structure of discharge valve. BACKGROUND

[0002] The discharge valve is usually arranged at the bottom of the equipment and used for discharging the material. When the equipment is used for solid-liquid separation of the material, the half ball valve with the filter device at the bottom of the equipment is beneficial to improving the solid-liquid separation of the material. The applicant's prior patent CN202223171455.9 discloses a discharge valve of a filter washing and drying machine, which comprises a valve body, a pneumatic head actuator connected to the left end of the valve body, and a liquid discharge channel connected to the right end of the valve body; a valve core is installed at the top end in the valve body, and a filter device is arranged at the upper end of the valve core; the material enters the valve body, the filter device filters the solid in the liquid, and the solid-liquid separation of the material is realized; after the filtration is completed, the liquid is discharged through the liquid discharge channel. The filter device of the above structure adopts a weldable metal sintered mesh, and when the material is corrosive or is not allowed to contact with the metal material, the filter medium of the metal sintered mesh cannot meet the production process requirements of the material. SUMMARY

[0003] The utility model aims at overcoming the shortcomings and deficiencies of the prior art and providing a filter cloth filter installation structure of discharge valve.

[0004] The utility model discloses a filter cloth filter installation structure of discharge valve, including the valve body, the valve body has the feed inlet, the discharge port and the valve cavity that communicates the feed inlet, the discharge port, be equipped with the valve core in the valve cavity, be equipped with the filter device on the valve core, the filter device includes the filter support plate with a plurality of through -holes and the filter cloth that is laid and fixed on the filter support plate, the filter support plate is fixedly connected with the valve core and forms the liquid discharge chamber between the two, the liquid discharge chamber is connected with the liquid discharge channel.

[0005] The lower end of the filter support plate is provided with an annular mounting seat, the outer periphery of the filter cloth is arranged between the filter support plate and the mounting seat, and the filter support plate and the mounting seat are connected and fastened by a plurality of first threaded fasteners.

[0006] A plurality of annularly spaced connection grooves are arranged on the mounting seat, the first threaded fastener comprises a screw rod fixedly connected with the filter support plate and a nut threadedly connected with the screw rod, and the screw rod penetrates through the connection groove and is in abutment with the mounting seat at the other end of the connection groove.

[0007] The connection groove is obliquely arranged on the upper end of the mounting seat, so that the outer end height is higher than the inner end height, the filter support plate is located at the upper end of the connection groove, and the nut is located at the lower end of the connection groove.

[0008] A first sealing ring is arranged between the upper end of the mounting seat and the filter cloth.

[0009] The valve core is provided with a mounting groove matched with the shape of the outer periphery of the mounting seat, and the mounting seat is arranged in the mounting groove and connected with the valve core through a second threaded fastener.

[0010] A second sealing ring is arranged between the outer periphery of the mounting seat and the inner wall of the mounting groove of the valve core, and a third sealing ring is arranged between the bottom surface of the mounting seat and the inner wall of the mounting groove of the valve core, and the third sealing ring is arranged on the inner side of the second threaded fastener.

[0011] The valve core is connected with a driving shaft and a supporting shaft, the driving shaft and the supporting shaft are rotatably supported on the valve body, and the driving shaft is connected with an actuator located outside the valve body.

[0012] The valve core is provided with a first through hole corresponding to the part connected with the supporting shaft, the supporting shaft penetrates the shell and is hollow inside to form a second through hole connected with the first through hole, and the liquid discharge channel comprises the first through hole and the second through hole.

[0013] The filter supporting plate is provided in a spherical convex surface.

[0014] The filter cloth filtering installation structure of the discharge valve is provided, the structure realizes filtering through the filter cloth filtering device in the discharge valve, and the process production demand of materials with corrosion or not allowed to contact with metal materials is solved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings obtained according to these drawings without creative labor still belong to the scope of the present application.

[0016] Figure 1 The structure schematic diagram of filtering and discharging in the closed state of an embodiment of the present application is shown in the figure.

[0017] Figure 2 The structure schematic diagram of the filtering device in an embodiment of the present application is shown in the figure.

[0018] Figure 3 The structure schematic diagram of the mounting seat in an embodiment of the present application is shown in the figure.

[0019] Figure 4 The structure schematic diagram in the open state of an embodiment of the present application is shown in the figure.

[0020] Valve body-1, feed port-101, discharge port-102, valve core-2, filter device-3, filter support-301, filter cloth-302, mounting seat-303, connecting groove-304, screw-305, nut-306, liquid discharge channel-4, second threaded fastener-5, first sealing ring-601, second sealing ring-602, third sealing ring-603, drive shaft-7, support shaft-8, actuator-9. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings.

[0022] It should be noted that all the expressions of "first" and "second" in the embodiments of the present application are used to distinguish two same name but different entities or different parameters, and it can be seen that "first" and "second" are only used for the convenience of description, and should not be understood as a limitation on the embodiments of the present application, and subsequent embodiments will not be described one by one.

[0023] The directions and positions mentioned in the present application, such as up, down, front, back, left, right, inside, outside, top, bottom, side, etc., are only the directions or positions of the drawings. Therefore, the directions and positions used are used to explain and understand the present application, and are not a limitation on the protection scope of the present application.

[0024] A filter cloth filtering installation structure of a discharge valve, as shown in Figure 1 The valve body 1 has a feed port 101, a discharge port 102 and a valve cavity communicating with the feed port 101 and the discharge port 102, a valve core 2 is arranged in the valve cavity, the two ends of the valve core 2 are respectively connected with a drive shaft 7 and a support shaft 8, the drive shaft 7 and the support shaft 8 are rotatably supported on the valve body 1, and the drive shaft 7 is connected with an actuator 9 outside the valve body 1. The actuator 9 drives the drive shaft 7, so that the valve core 2 can rotate in the valve cavity. The valve core 2 cooperates with the inner wall of the valve body 1 to have a closed state of plugging the feed port 101 and an open state of exposing the feed port 101, in the open state, the feed port 101 and the discharge port 102 are communicated to normally discharge. In the present embodiment, the actuator 9 can adopt a pneumatic actuator.

[0025] Further, the valve core 2 is provided with a filter device 3, as shown in Figure 2As shown, the filter device 3 comprises a filter tray 301 with a plurality of through holes and a filter cloth 302 fixed on the filter tray 301, the filter tray 301 is fixedly connected with the valve core 2 and a drainage cavity is formed between the two, and the drainage cavity is communicated with the drainage channel 4. That is, after the solid-liquid mixed material is filtered through the filter cloth 302, the filtrate enters the drainage cavity and then is discharged through the drainage channel 4, and the solid material part is retained above the filter cloth 302. The valve core 2 is provided with a first through hole corresponding to the part connected with the support shaft 8, the support shaft 8 penetrates out of the shell and is hollow inside to form a second through hole connected with the first through hole, and the drainage channel 4 comprises the first through hole and the second through hole. In this way, the connection of the drainage channel 4 with the external drainage pipeline is more convenient, and the connection through the rotary joint can be achieved.

[0026] Specifically, the lower end of the filter tray 301 is provided with an annular mounting seat 303, the outer periphery of the filter cloth 302 is arranged between the filter tray 301 and the mounting seat 303, and the filter tray 301 and the mounting seat 303 are connected and fastened by a plurality of first threaded fasteners, and the mounting seat 303 is fixedly connected with the valve core 2. The filter tray 301, the mounting seat 303 and the valve core 2 form a drainage cavity. Further, as shown in the figure, Figure 3 As shown, the mounting seat 303 is provided with a plurality of annularly spaced connection grooves 304, the first threaded fastener comprises a screw rod 305 fixedly connected with the filter tray 301 and a nut 306 threadedly connected with the screw rod 305, and the screw rod 305 penetrates through the connection groove 304 and is arranged at the other end of the connection groove 304 and abuts against the mounting seat 303. The connection groove 304 is obliquely arranged at the upper end of the mounting seat 303, so that the outer end height is higher than the inner end height, the filter tray 301 is located at the upper end of the connection groove 304, and the nut 306 is located at the lower end of the connection groove 304. During installation, the filter tray 301 wrapped with the filter cloth 302 is placed above the mounting seat 303, the screw rod 305 is aligned with the connection groove 304 during placement, and then the fastening nut 306 is connected and fastened through the opening below the center of the mounting seat 303, so that the filter tray 301 and the mounting seat 303 form stable connection. Further, a first sealing ring 601 is arranged between the upper end of the mounting seat 303 and the filter cloth 302, so as to prevent the material from leaking into the drainage cavity through the position where the upper end of the mounting seat 303 is connected with the mounting seat 303. The screw rod 305 and the filter tray 301 can be integrally formed or welded.

[0027] Further, as shown in the figure, Figure 1 As shown, the valve core 2 is provided with a mounting groove matched with the shape of the outer periphery of the mounting seat 303, the mounting seat 303 is arranged in the mounting groove and is connected with the valve core 2 through the second threaded fastener 5. The connection of the valve core 2 and the mounting seat 303 is more stable.

[0028] The second sealing ring 602 is arranged between the outer periphery of the mounting seat 303 and the inner wall of the valve core 2 mounting groove, and the third sealing ring 603 is arranged between the bottom surface of the mounting seat 303 and the inner wall of the valve core 2 mounting groove, and the third sealing ring 603 is arranged on the inner side of the second threaded fastener 5. The second sealing ring 602 and the third sealing ring 603 jointly form the effective sealing between the valve core 2 and the mounting seat 303.

[0029] Further, the filter supporting plate 301 is arranged in a spherical convex curved surface, so that the whole presents a structure of a half ball valve.

[0030] The above disclosure is only the preferred embodiment of the utility model, of course, cannot with this to limit the scope of the utility model right, therefore the equivalent change made according to the utility model claim, still belongs to the range covered by the utility model.

Claims

1. A filter cloth filtration installation structure for a discharge valve, comprising a valve body (1), the valve body (1) having an inlet (101), an outlet (102), and a valve cavity communicating with the inlet (101) and the outlet (102), wherein a valve core (2) is provided in the valve cavity, and a filter device (3) is provided on the valve core (2), characterized in that: The filter device (3) comprises a filter tray (301) with a plurality of through holes and filter cloth (302) fixed on the filter tray (301), the filter tray (301) is fixedly connected with the valve core (2) and a drainage cavity is formed between the two, and the drainage cavity is communicated with a drainage channel (4).

2. The filter cloth filter mounting structure of the discharge valve according to claim 1, characterized by: The lower end of the filter tray (301) is provided with an annular mounting seat (303), the outer periphery of the filter cloth (302) is arranged between the filter tray (301) and the mounting seat (303), and the filter tray (301) and the mounting seat (303) are connected and fastened by a plurality of first threaded fasteners, and the mounting seat (303) is fixedly connected with the valve core (2).

3. The filter cloth filter mounting structure of the discharge valve according to claim 2, characterized by: The mounting seat (303) is provided with a plurality of annularly spaced connection grooves (304), the first threaded fastener comprises a screw rod (305) fixedly connected with the filter tray (301) and a nut (306) threadedly connected with the screw rod (305), and the screw rod (305) passes through the connection groove (304) and is arranged at the other end of the connection groove (304) and abuts against the mounting seat (303).

4. The filter cloth filter mounting structure of the discharge valve according to claim 3, characterized by: The connection groove (304) is obliquely arranged at the upper end of the mounting seat (303), so that the outer end height is higher than the inner end height, the filter tray (301) is located at the upper end of the connection groove (304), and the nut (306) is located at the lower end of the connection groove (304).

5. The filter cloth filter mounting structure of the discharge valve according to claim 3, characterized by: A first sealing ring (601) is arranged between the upper end of the mounting seat (303) and the filter cloth (302).

6. The filter cloth filter mounting structure of the discharge valve according to claim 2, characterized by: The valve core (2) is provided with a mounting groove matched with the shape of the outer periphery of the mounting seat (303), the mounting seat (303) is arranged in the mounting groove and connected with the valve core (2) by a second threaded fastener (5).

7. The filter cloth filter mounting structure of the discharge valve according to claim 6, characterized by: A second sealing ring (602) is arranged between the outer periphery of the mounting seat (303) and the inner wall of the mounting groove of the valve core (2), a third sealing ring (603) is arranged between the bottom surface of the mounting seat (303) and the inner wall of the mounting groove of the valve core (2), and the third sealing ring (603) is arranged on the inner side of the second threaded fastener (5).

8. The filter cloth filter mounting structure of the discharge valve according to any one of claims 1 to 7, characterized by: The valve core (2) is connected with a driving shaft (7) and a supporting shaft (8), the driving shaft (7) and the supporting shaft (8) are rotatably supported on the valve body (1), and the driving shaft (7) is connected with an actuator (9) located outside the valve body (1).

9. The filter cloth filter mounting structure of the discharge valve according to claim 8, characterized by: The valve core (2) is provided with a first through hole corresponding to the part connected with the supporting shaft (8), the supporting shaft (8) passes out of the shell and is hollow inside to form a second through hole connected with the first through hole, and the drainage channel (4) comprises the first through hole and the second through hole.

10. The filter cloth filter mounting structure of the discharge valve according to claim 8, characterized by: The filter tray (301) is arranged in a spherical convex curved surface.

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