Lengthened disconnecting link

Abstract

The key points of the technical scheme are that the lengthened disconnecting link comprises an extension plate, the extension plate is provided with a second plate hole for a flashboard to pass through, the top of the first plate hole is provided with a first sealing groove, a first sealing sleeve sleeved on the flashboard is arranged in the first sealing groove, and the top of the second plate hole is provided with a second sealing groove. A second sealing sleeve used for being arranged on the gate plate in a sleeving mode is arranged in the second sealing groove. The knife gate valve has the advantages that the sealing performance is enhanced through the double-sealing structure, leakage in the sealing state is avoided, and the service life of the knife gate valve can be effectively prolonged.

Description

Technical Field

[0001] The utility model relates to a knife switch, more specifically, it relates to an extended knife switch. Background Art

[0002] A knife gate valve, also known as a knife gate valve, is a type of valve. It is used as the lower discharge valve of a high-consistency cleaner in pulp and papermaking equipment. Discharged waste comes into contact with the gate disc, causing wear and tear. The gate disc can even move, wearing out the seals and causing leakage while the seals are still functioning properly. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an extended knife switch that can solve the problem of sealing leakage.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an extended knife gate, comprising a valve body, a valve port provided on the valve body, a connecting seat installed on the top of the valve body, the connecting seat provided with a first plate hole for communicating with the valve port, the first plate hole being slidably connected to a gate plate for closing the valve port, the connecting seat being also fixedly connected to an extension plate, the extension plate being provided with a second plate hole for the gate plate to pass through, a first sealing groove being provided on the top of the first plate hole, a first sealing sleeve being provided in the first sealing groove for being mounted on the gate plate, a second sealing groove being provided on the top of the second plate hole, a second sealing sleeve being provided in the second sealing groove for being mounted on the gate plate.

[0005] In summary, the utility model has the following beneficial effects: although waste materials can still contact and wear the gate plate, the waste materials can only contact the first sealing sleeve in the first sealing groove, or be contained in the second plate hole, and it is not easy to accumulate in the second plate hole to the extent of affecting the second sealing sleeve in the second sealing groove, thereby effectively enhancing the sealing performance through the double sealing structure, thereby avoiding leakage in the sealed state, and can effectively increase the service life of the knife gate valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic diagram of the three-dimensional structure of the extended knife switch;

[0007] Figure 2 This is a cross-sectional view of the extended knife switch;

[0008] Figure 3 for Figure 2 A magnified view of;

[0009] Figure 4 for Figure 2 An enlarged view of the upper part of

[0010] Figure 5 Schematic diagram of the three-dimensional structure of the connecting seat;

[0011] Figure 6 Schematic diagram of the three-dimensional structure of the extension plate;

[0012] Figure 7 It is a schematic diagram of the three-dimensional structure of the gland. DETAILED DESCRIPTION

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom," "top," "inner," and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0014] Reference Figure 1-7 As shown, an extended knife gate includes a valve body 1, a valve port 11 is provided on the valve body 1, a connecting seat 2 is installed on the top of the valve body 1, the connecting seat 2 is provided with a first plate hole 21 for communicating with the valve port 11, the first plate hole 21 is slidably connected to a gate 12 for closing the valve port 11, the connecting seat 2 is also fixedly connected to an extension plate 3, the extension plate 3 is provided with a second plate hole 31 for the gate 12 to pass through, a first sealing groove 22 is provided on the top of the first plate hole 21, a first sealing sleeve 23 for being sleeved on the gate 12 is provided in the first sealing groove 22, a second sealing groove 32 is provided on the top of the second plate hole 31, a second sealing sleeve 33 for being sleeved on the gate 12 is provided in the second sealing groove 32.

[0015] Through the above solution, although the waste material can still contact and wear the gate plate 12, the waste material can only contact the first sealing sleeve 23 in the first sealing groove 22, or be contained in the second plate hole 31, and it is not easy to accumulate in the second plate hole 31 to the extent of affecting the second sealing sleeve 33 in the second sealing groove 32. The double sealing structure is used to effectively enhance the sealing performance, thereby avoiding leakage in the sealed state and effectively increasing the service life of the knife gate valve.

[0016] As an improved specific implementation, there are multiple first sealing sleeves 23 and multiple second sealing sleeves 33, and they are stacked.

[0017] Through the above solution, by increasing the number and stacking the devices, the sealing performance can be effectively enhanced and the service life can be extended.

[0018] As an improved specific embodiment, the top of the extension plate 3 is fixedly connected to the pressure cover 4, and the bottom of the pressure cover 4 is provided with a fastening block 41 for extending into the second sealing groove 32 and is provided with the gate plate 12.

[0019] Through the above solution, the gland 4 is tightly fixed, and the fastening block 41 can extend into the second sealing groove 32 to squeeze the second sealing sleeve 33, so that the second sealing sleeve 33 can be firmly fixed to ensure the sealing performance.

[0020] As an improved specific embodiment, a second connecting ring 34 is further provided on the top of the extension plate 3, a plurality of connecting rods 341 are provided on the second connecting ring 34, and a plurality of second through holes 42 corresponding to the corresponding connecting rods 341 are provided on the pressure cover 4, and the plurality of connecting rods are all connected with fixing nuts 342 through the corresponding second through holes 42.

[0021] Through the above solution, the connecting rod 341 is convenient for guiding the limit connection and fixing, and is convenient for disassembly and installation.

[0022] As an improved specific embodiment, a connecting portion 24 is provided at the top of the connecting seat 2, and a plurality of first threaded holes 241 are provided on the connecting portion 24. A first connecting ring 35 is provided at the bottom of the extension plate 3, and a plurality of first through holes 351 corresponding to the corresponding first threaded holes 241 are provided on the first connecting ring 35. The plurality of first through holes 351 are all connected with first bolts 352 for connecting with the corresponding first threaded holes 241.

[0023] Through the above solution, the threaded connection is convenient for disassembly and installation, and the connection is firm and not easy to loosen.

[0024] As an improved specific implementation, connecting blocks 25 are provided on both sides of the connecting portion 24 , and connecting holes 251 are provided on the connecting blocks 25 .

[0025] Through the above solution, the structural strength is enhanced, and it is also convenient for external connection, installation and fixing or installation of components.

[0026] As an improved specific implementation, first limiting grooves 353 are further provided on both sides of the first connecting ring 35 , and second limiting grooves 343 corresponding to the first limiting grooves 353 are further provided on both sides of the second connecting ring 34 .

[0027] Through the above solution, the external components are limited and fixed, and the design of the process groove can also facilitate connection and installation.

[0028] As an improved specific implementation, vertical reinforcing ribs 36 are provided on both sides of the extension plate 3 , and both ends of the two reinforcing ribs 36 are connected to the first connecting ring 35 and the second connecting ring 34 respectively.

[0029] Through the above solution, the structural strength is enhanced, deformation is not easy, and stable use is ensured.

[0030] As an improved specific embodiment, a sealing groove 13 is provided on the valve port 11, and the sealing groove 13 is connected to the annular valve seat 5. A first annular groove 51 is provided on the outer annular surface of the valve seat 5 facing the inner wall of the valve port 11, and the first annular groove 51 is connected to the first sealing ring 52.

[0031] Through the above solution, the sealing of the valve port 11 is strengthened, and waste residue is prevented from entering, and leakage and damage are avoided.

[0032] As an improved specific embodiment, the valve port 11 is fixedly connected to a fastening ring 14, and a fixing ring 53 for inserting into the fastening ring 14 is provided on the valve seat 5. The fixing ring 53 is provided with a second groove ring 54 on the outer ring surface that contacts the inner wall of the fastening ring 14, and the second groove ring 54 is provided with a second sealing ring 55.

[0033] Through the above solution, double sealing is achieved to reduce the possibility of leakage.

[0034] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An extended knife gate, comprising a valve body (1), wherein the valve body (1) is provided with a valve port (11), and wherein: A connecting seat (2) is installed on the top of the valve body (1), and the connecting seat (2) is provided with a first plate hole (21) for communicating with the valve port (11), and the first plate hole (21) is slidably connected to a gate plate (12) for closing the valve port (11), and the connecting seat (2) is also fixedly connected to an extension plate (3), and the extension plate (3) is provided with a second plate hole (31) for the gate plate (12) to pass through, and a first sealing groove (22) is provided on the top of the first plate hole (21), and a first sealing sleeve (23) for being mounted on the gate plate (12) is provided in the first sealing groove (22), and a second sealing groove (32) is provided on the top of the second plate hole (31), and a second sealing sleeve (33) for being mounted on the gate plate (12) is provided in the second sealing groove (32).

2. The extended knife switch according to claim 1 is characterized in that: There are multiple first sealing sleeves (23) and second sealing sleeves (33), and they are stacked.

3. The extended knife switch according to claim 2 is characterized in that: The top end of the extension plate (3) is fixedly connected to a pressure cover (4), and the bottom end of the pressure cover (4) is provided with a fastening block (41) for extending into the second sealing groove (32) and is provided with a gate plate (12).

4. The extended knife switch according to claim 3 is characterized in that: A second connecting ring (34) is further provided on the top of the extension plate (3), and a plurality of connecting rods (341) are provided on the second connecting ring (34). The pressure cover (4) is provided with a plurality of second through holes (42) corresponding to the corresponding connecting rods (341), and the plurality of connecting rods (341) are all connected to fixing nuts (342) through the corresponding second through holes (42).

5. The extended knife switch according to claim 4 is characterized in that: The top of the connecting seat (2) is provided with a connecting portion (24), and the connecting portion (24) is provided with a plurality of first threaded holes (241). The bottom of the extension plate (3) is provided with a first connecting ring (35), and the first connecting ring (35) is provided with a plurality of first through holes (351) corresponding to the corresponding first threaded holes (241). The plurality of first through holes (351) are all connected with first bolts (352) for connecting with the corresponding first threaded holes (241).

6. The extended knife switch according to claim 5, characterized in that: Connecting blocks (25) are provided on both sides of the connecting portion (24), and connecting holes (251) are provided on the connecting blocks (25).

7. The extended knife switch according to claim 5, characterized in that: Both sides of the first connecting ring (35) are provided with first limiting grooves (353), and both sides of the second connecting ring (34) are provided with second limiting grooves (343) corresponding to the first limiting grooves (353).

8. The extended knife switch according to claim 6, characterized in that: Vertical reinforcing ribs (36) are provided on both sides of the extension plate (3), and both ends of the two reinforcing ribs (36) are respectively connected to the first connecting ring (35) and the second connecting ring (34).

9. The extended knife switch according to claim 1 is characterized in that: A sealing groove (13) is provided on the valve port (11), the sealing groove (13) is connected to an annular valve seat (5), a first annular groove (51) is provided on the outer annular surface of the valve seat (5) facing the inner wall of the valve port (11), and the first annular groove (51) is connected to a first sealing ring (52).

10. The extended knife switch according to claim 9, characterized in that: The valve port (11) is fixedly connected to a fastening ring (14); the valve seat (5) is provided with a fixing ring (53) for inserting into the fastening ring (14); the fixing ring (53) is provided with a second groove ring (54) on an outer ring surface contacting the inner wall of the fastening ring (14); and the second groove ring (54) is provided with a second sealing ring (55).

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