Wafer type split center butterfly valve

Abstract

The utility model belongs to the technical field of butterfly valves, and particularly relates to a wafer type split center butterfly valve which comprises a valve body, a first mounting cylinder is fixedly connected to the lower side of the valve body, a first rotating shaft is rotatably connected to the interior of the first mounting cylinder and rotatably connected with the valve body, a second mounting cylinder is fixedly connected to the upper side of the valve body, and a second rotating shaft is rotatably connected with the valve body. And a second rotating shaft is rotationally connected into the second mounting cylinder and rotationally connected with the valve body, the outer side of the second rotating shaft and the outer side of the first rotating shaft are jointly and fixedly connected with a valve disc in a sleeving mode, and the valve disc is rotationally connected with the valve body. The rotating ring is pushed to drive the second rotating shaft to rotate so as to drive the valve disc to rotate and open and close the valve body, under the action of the second spring, the guide block and other structures, the locking rod can be inserted into the locking hole, the second rotating shaft is inserted and limited, and the problem that the valve disc deflects due to the fact that the valve body is accidentally impacted is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a wafer type split center butterfly valve. Background Technique

[0002] The wafer type split center butterfly valve is a butterfly valve with a special structure. Among them, the structure is simple: the wafer type butterfly valve adopts a simple structural design and is composed of several basic components such as a valve body, a valve plate, and a valve stem, which is convenient for installation and maintenance; the centerline design: the valve body and the valve plate of the wafer type butterfly valve are designed to be aligned with the centerline, so that the valve plate can rotate along the centerline when opening and closing, reducing the operating resistance and improving the operating performance.

[0003] In the utility model patent with the patent authorization announcement number CN215806383U, a wafer type split center butterfly valve with high sealing performance is disclosed, which includes a ring body, a valve piece, a stud, and a pressing piece. Fixed sleeves are fixed on both sides of the ring body. The top end of the ring body is embedded with a main shaft seat, and a turntable is rotatably installed at the upper end of the main shaft seat. A knob is rotatably installed at the middle of the upper end of the turntable. The bottom end of the ring body is embedded with an auxiliary shaft seat. An inner groove is opened inside the ring body, and sealing rings are fixed on both sides of the opening of the inner groove. The valve piece is located inside the ring body, and plug sleeves are fixed at the upper and lower ends of the valve piece. The plug sleeves are inserted into the corresponding rotating shafts of the main shaft seat and the auxiliary shaft seat. The pressing piece is located in the middle of the valve piece, and linkage rods are fixed on both sides of the upper end of the pressing piece. A groove is opened at the middle of the upper end of the turntable.

[0004] However, the existing wafer type split center butterfly valve also has certain deficiencies. First of all, although the existing wafer type split center butterfly valve uses bolts to lock and fix the valve body and the pipeline, due to the influence of external force factors such as vibration, the bolts will vibrate and become loose after long-term use.

[0005] Secondly, although the existing wafer type split center butterfly valve uses the cooperation of structures such as a valve stem, a valve body, and a valve seat to complete the opening and closing of the valve disc, due to the influence of external force impacts, vibrations and other factors, the valve disc is prone to self-deflection problems. Summary of the Invention

[0006] The purpose of the utility model is to provide a wafer type split center butterfly valve, which solves the problem that although the existing wafer type split center butterfly valve uses bolts to lock and fix the valve body and the pipeline, due to the influence of external force factors such as vibration, the bolts will vibrate and become loose after long-term use; and solves the problem that although the existing wafer type split center butterfly valve uses the cooperation of structures such as a valve stem, a valve body, and a valve seat to complete the opening and closing of the valve disc, due to the influence of external force impacts, vibrations and other factors, the valve disc is prone to self-deflection problems.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A clamp-type split center butterfly valve, comprising a valve body, a mounting cylinder one is fixedly connected to the lower side of the valve body, a rotating shaft one is rotatably connected inside the mounting cylinder one, the rotating shaft one is rotatably connected to the valve body, a mounting cylinder two is fixedly connected to the upper side of the valve body, a rotating shaft two is rotatably connected inside the mounting cylinder two, the rotating shaft two is rotatably connected to the valve body, a valve disc is fixedly sleeved on the outer sides of the rotating shaft two and the rotating shaft one together, the valve disc is rotatably connected to the valve body, four uniformly distributed mounting ears are fixedly connected together between the mounting cylinder one, the mounting cylinder two and the valve body, a bolt is movably connected inside each mounting ear, a limiting mechanism is provided on the bolt and the mounting ear together, and a locking mechanism is provided on the rotating shaft two and the mounting cylinder two together.

[0008] Preferably, four support rods arranged in a circular array are fixedly connected to the surface of the rotating shaft two, and a rotating ring is fixedly connected to the end faces of the four support rods together. Through the setting of the rotating ring, it is convenient to push the rotating shaft two to rotate, so as to drive the valve disc to rotate.

[0009] Preferably, the limiting mechanism includes a limiting ring groove, a limiting ring groove is opened on the surface of the bolt, an end piece contacts the end face of the mounting ear, a plug board is fixedly connected to the end face of the end piece close to the bolt side, the plug board is slidably connected to the mounting ear, the plug board is slidably connected to the limiting ring groove, a slider is fixedly connected to the end face of the plug board, and the slider is slidably connected to the mounting ear. Through the cooperation of structures such as the plug board and the limiting ring groove, the bolt can be limited to avoid the problem of loosening due to vibration of the bolt.

[0010] Preferably, a plurality of plug boards are provided, and the plurality of plug boards are symmetrically distributed on the end piece. Through the setting of the plug board, the limiting ring groove can be limited for use.

[0011] Preferably, a spring one is welded to the end face of the slider close to the bolt side, and the other end of the spring one is welded to the mounting ear. Through the setting of the spring one, the slider can be connected for use.

[0012] Preferably, the locking mechanism includes a locking hole, a locking hole is opened on the surface of the rotating shaft two, a fixing plate is fixedly connected to the right side of the mounting cylinder two, a locking rod is slidably connected inside the fixing plate, the locking rod is slidably connected to the locking hole, an end plate is fixedly connected to the right end of the locking rod, a spring two is welded to the left end of the end plate, and the other end of the spring two is welded to the fixing plate. Through the setting of the spring two, the locking rod can be inserted into the locking hole to limit the rotating shaft two and avoid the problem of vibration deflection of the valve disc.

[0013] Preferably, a guide block is fixedly connected to the lower side of the locking rod, and the guide block is slidably connected to the fixed plate. Through the arrangement of the guide block, the locking rod can be guided.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. Through the arrangement of the bolts, the present utility model can lock and fix between the valve body and the pipeline. Under the action of structures such as the limit ring groove, the insertion plate, and the spring one, the bolts can be inserted and limited to avoid the problem of loosening of the bolts due to vibration.

[0016] 2. By pushing the rotating ring to drive the second rotating shaft to rotate, the valve disc can be driven to rotate to open and close the valve body. Under the action of structures such as the spring two and the guide block, the locking rod can be inserted into the locking hole to insert and limit the second rotating shaft, avoiding the problem that the valve disc deflects due to accidental impact on the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional view of the overall structure of the present utility model;

[0018] Figure 2 is of the present utility model Figure 1 bottom-up three-dimensional view;

[0019] Figure 3 is of the present utility model Figure 1 bottom-up sectional view;

[0020] Figure 4 is of the present utility model Figure 2 enlarged view of the locking mechanism;

[0021] Figure 5 is of the present utility model Figure 3 enlarged view of the limiting mechanism;

[0022] Figure 6 is of the present utility model Figure 5 enlarged view at A;

[0023] In the figure: 1. Valve body; 2. First installation cylinder; 3. First rotating shaft; 4. Second installation cylinder; 5. Second rotating shaft; 6. Valve disc; 7. Rotating ring; 8. Installation ear; 9. Bolt; 10. Limiting mechanism; 11. Locking mechanism; 101. Limit ring groove; 102. End piece; 103. Insertion plate; 104. Slide block; 105. Spring one; 111. Locking hole; 112. Fixed plate; 113. Locking rod; 114. Guide block; 115. End plate; 116. Spring two. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 , a clamping split center butterfly valve, including a valve body 1, a first mounting cylinder 2 is fixedly connected to the lower side of the valve body 1, a first rotating shaft 3 is rotatably connected inside the first mounting cylinder 2, the first rotating shaft 3 is rotatably connected to the valve body 1, a second mounting cylinder 4 is fixedly connected to the upper side of the valve body 1, a second rotating shaft 5 is rotatably connected inside the second mounting cylinder 4, the second rotating shaft 5 is rotatably connected to the valve body 1, a valve disc 6 is fixedly sleeved on the outer sides of the second rotating shaft 5 and the first rotating shaft 3 together, the valve disc 6 is rotatably connected to the valve body 1, four support rods arranged in a circular array are fixedly connected to the surface of the second rotating shaft 5, and a rotating ring 7 is fixedly connected to the end faces of the four support rods. Through the arrangement of the rotating ring 7, it is convenient to push the second rotating shaft 5 to rotate, so as to drive the valve disc 6 to rotate. Four uniformly distributed mounting ears 8 are fixedly connected together between the first mounting cylinder 2, the second mounting cylinder 4 and the valve body 1, and a bolt 9 is movably connected inside each mounting ear 8.

[0026] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 , a limiting mechanism 10 is jointly arranged on the bolt 9 and the mounting ear 8. The limiting mechanism 10 includes a limiting ring groove 101. The limiting ring groove 101 is opened on the surface of the bolt 9. An end piece 102 contacts the end face of the mounting ear 8. A plug board 103 is fixedly connected to the end face of the end piece 102 close to the bolt 9. The plug board 103 is slidably connected to the mounting ear 8. The plug board 103 is slidably connected to the limiting ring groove 101. A slider 104 is fixedly connected to the end face of the plug board 103. The slider 104 is slidably connected to the mounting ear 8. Through the combined use of structures such as the plug board 103 and the limiting ring groove 101, the bolt 9 can be limited to avoid the problem of loosening due to vibration of the bolt 9.

[0027] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6, a plurality of insertion plates 103 are provided. The plurality of insertion plates 103 are symmetrically distributed on the end piece 102. Through the setting of the insertion plates 103, the limit ring groove 101 can be used for limiting. One end face of the slider 104 close to the bolt 9 is welded with a first spring 105, and the other end of the first spring 105 is welded to the mounting ear 8. Through the setting of the first spring 105, the slider 104 can be connected and used.

[0028] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , a locking mechanism 11 is jointly provided on the rotating shaft two 5 and the mounting cylinder two 4. The locking mechanism 11 includes a locking hole 111. The locking hole 111 is formed on the surface of the rotating shaft two 5. A fixing plate 112 is fixedly connected to the right side of the mounting cylinder two 4. A locking rod 113 is slidably connected inside the fixing plate 112. The locking rod 113 is slidably connected to the locking hole 111. A guide block 114 is fixedly connected to the lower side of the locking rod 113. The guide block 114 is slidably connected to the fixing plate 112. Through the setting of the guide block 114, the locking rod 113 can be guided. A end plate 115 is fixedly connected to the right end of the locking rod 113. A second spring 116 is welded to the left end of the end plate 115. The other end of the second spring 116 is welded to the fixing plate 112. Through the setting of the second spring 116, the locking rod 113 can be inserted into the locking hole 111 to limit the rotating shaft two 5 and avoid the problem of vibration and deflection of the valve disc 6.

[0029] The specific implementation process of the present utility model is as follows: When in use, by pulling the end piece 102 to move away from the mounting ear 8, the insertion plate 103 is driven to move, and then the slider 104 is driven to move. The first spring 105 deforms. Then, the bolt 9 is pushed through the mounting ear 8 so that the bolt 9 contacts the butt joint pipeline structure. The bolt 9 is rotated to make the bolt 9 perform a threaded movement, and then the bolt 9 is installed to lock the valve body 1 and the pipeline structure, and the end piece 102 is released so that the first spring 105 restores its deformation to pull the insertion plate 103 into the limit ring groove 101 to limit the bolt 9 and avoid the problem of vibration and loosening of the bolt 9;

[0030] By pulling the end plate 115 to move to the right, the locking rod 113 is driven to move, and the guide block 114 is driven to slide along the inner wall of the fixing plate 112 to ensure the stable movement of the locking rod 113. The second spring 116 deforms. Finally, the locking rod 113 is disengaged from the locking hole 111. The rotating ring 7 can be pushed to drive the rotating shaft two 5 to rotate to drive the valve disc 6 to rotate and adjust the opening and closing angle of the valve disc 6. The end plate 115 is released so that the second spring 116 restores its deformation to pull the locking rod 113 into the locking hole 111 to insert and process the rotating shaft two 5 and avoid the problem of vibration and deflection of the valve disc 6.

[0031] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A wafer-type split center butterfly valve, comprising a valve body (1), characterized in that: The lower side of the valve body (1) is fixedly connected to a mounting cylinder 1 (2), the interior of the mounting cylinder 1 (2) is rotatably connected to a rotating shaft 1 (3), the rotating shaft 1 (3) is rotatably connected to the valve body (1), the upper side of the valve body (1) is fixedly connected to a mounting cylinder 2 (4), the interior of the mounting cylinder 2 (4) is rotatably connected to a rotating shaft 2 (5), the rotating shaft 2 (5) is rotatably connected to the valve body (1), the outer sides of the rotating shaft 2 (5) and the rotating shaft 1 (3) are jointly fixedly sleeved with a valve disc (6), the valve disc (6) is rotatably connected to the valve body (1), four evenly distributed mounting ears (8) are jointly fixedly connected between the mounting cylinder 1 (2), the mounting cylinder 2 (4) and the valve body (1), each of the mounting ears (8) is movably connected to a bolt (9), a limiting mechanism (10) is jointly provided on the bolt (9) and the mounting ear (8), and a locking mechanism (11) is jointly provided on the rotating shaft 2 (5) and the mounting cylinder 2 (4).

2. The wafer-type split center butterfly valve according to claim 1, characterized in that: The surface of the second rotating shaft (5) is fixedly connected to four support rods arranged in a ring array, and the end surfaces of the four support rods are commonly fixedly connected to a rotating ring (7).

3. The wafer-type split center butterfly valve according to claim 1, characterized in that: The limiting mechanism (10) comprises a limiting ring groove (101), the surface of the bolt (9) is provided with the limiting ring groove (101), the end surface of the mounting ear (8) contacts an end plate (102), the end surface of the end plate (102) close to the bolt (9) is fixedly connected to an insert plate (103), the insert plate (103) is slidably connected to the mounting ear (8), the insert plate (103) is slidably connected to the limiting ring groove (101), the end surface of the insert plate (103) is fixedly connected to a slider (104), and the slider (104) is slidably connected to the mounting ear (8).

4. The wafer-type split center butterfly valve according to claim 3 is characterized in that: A plurality of the plug boards (103) are provided, and the plurality of the plug boards (103) are symmetrically distributed on the end piece (102).

5. The wafer-type split center butterfly valve according to claim 3 is characterized in that: A spring 1 (105) is welded to the end surface of the slider (104) close to the bolt (9), and the other end of the spring 1 (105) is welded to the mounting ear (8).

6. The wafer-type split center butterfly valve according to claim 1, characterized in that: The locking mechanism (11) comprises a locking hole (111), the surface of the second rotating shaft (5) is provided with the locking hole (111), the right side of the second mounting cylinder (4) is fixedly connected to a fixing plate (112), the interior of the fixing plate (112) is slidably connected to a locking rod (113), the locking rod (113) is slidably connected to the locking hole (111), the right end of the locking rod (113) is fixedly connected to an end plate (115), the left end of the end plate (115) is welded to a second spring (116), and the other end of the second spring (116) is welded to the fixing plate (112).

7. The wafer-type split center butterfly valve according to claim 6, characterized in that: A guide block (114) is fixedly connected to the lower side of the locking rod (113), and the guide block (114) is slidably connected to the fixing plate (112).

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