Sealing flange of manual double-connecting-rod sealing valve

Abstract

The utility model provides a hand-operated double connecting rod airtight valve airtight flange, including valve body, fixed shell, fixed column, locating pin, rotating disk and fixed block, the inside of valve body is placed the closing door, and the inner wall of valve body is inserted with connecting rod no. 1, connecting rod no. 1 with fixed block bottom end is connected and fixed through welding, connecting rod no. The right side of the valve body is connected with a fixing shell, the right side of the fixing shell is connected with a sealing plate, the right end of a first connecting rod is inserted into the bottom end of the right side of the fixing shell in a penetrating mode, and the right end of the first connecting rod is connected with a first gear. And the left end of the second connecting rod is inserted into the top end of the right side of the sealing plate in a penetrating mode, the left end of the second connecting rod is connected with a second gear, operation is facilitated, later-period repair and maintenance are facilitated, operation time is shortened, and the device is suitable for long-term use.

Description

Technical Field

[0001] The utility model is a closed flange for a manual double-connecting rod closed valve, relating to the technical field of valves. Background Art

[0002] Manual airtight valves and lever-type airtight valves are used in fully open or fully closed situations. In addition to the opening and closing functions, double-link airtight valves also have the function of adjusting the air volume. Manual airtight valves can be installed on horizontal or vertical pipes and should be easy to operate, maintain or replace. When installing manual airtight valves, ensure that the arrow in the direction of the valve's pressure is consistent with the direction of the shock wave it is subjected to.

[0003] Chinese patent number CN212616365U discloses a manual double-link sealed valve sealed flange, which is composed of a valve seat, a valve plate, a valve stem, an adjusting rod, an outer gear ring, an inner gear ring, etc. The device has a simple structure, is easy to use, easy to install, has good sealing performance and can be used for a long time. However, when closing, it is a bit difficult to close the valve mouth due to the excessive pressure inside the valve body. Therefore, a manual double-link sealed valve sealed flange is urgently needed to solve the problem now raised. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a manual double-link sealed valve sealed flange to solve the problems raised in the above-mentioned background technology. The utility model is easy to use, the valve body can quickly achieve a sealing effect, the operation is more convenient and the practicality is very good and suitable for popularization and use.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized by the following technical scheme: a manual double-link sealed valve sealed flange, comprising a valve body, a fixed shell, a sealing plate, a closed door, a connecting rod 1, a gear 1, a gear 2, a connecting rod 2, a fixed column, a positioning pin, a rotating disk and a fixed block, a closed door is placed inside the valve body, and a connecting rod 1 is inserted through the inner wall of the valve body, the connecting rod 1 is connected to the sleeve provided at the bottom end of the fixed block on the outside and fixed by welding, two groups of screw holes are provided on the surface of the fixed block, which are connected to the two groups of internal threads provided on the surface of the closed door and fixed by bolt connection, the right side of the valve body is connected to the fixed shell, and the right side of the fixed shell is connected to the sealing plate, the right end of the connecting rod 1 is inserted in the bottom end position of the right side of the fixed shell, and the right end of the connecting rod 1 is connected to the gear 1, the left end of the connecting rod 2 is inserted in the top position of the right side of the sealing plate, the left end of the connecting rod 2 is connected to the gear 2, the right end of the connecting rod 2 is connected to the rotating disk, and the middle position on the right side of the rotating disk is connected to the fixed column, and the bottom end of the positioning pin is inserted in the top position of the fixed shell.

[0006] Furthermore, a sealing ring is provided around the outside of the closed door, and the fixed shell is fixed to the right side of the valve body through welding.

[0007] Furthermore, a limiting groove 1 is opened at the right end of the connecting rod 1, and a limiting groove 2 is opened in the middle position of the gear 1, and the limiting groove 2 opened in the middle of the gear 1 is connected with the limiting groove 2 opened at the right end of the connecting rod 1, and the limiting bar is fixed inside the limiting groove 1 and the limiting groove 2 by knocking.

[0008] Furthermore, a limiting groove three is provided at the left end of the second connecting rod, a clamping block is provided at the middle position of the second gear, and the width of the clamping block is smaller than the width of the limiting groove three provided at the left end of the second connecting rod.

[0009] Furthermore, a group of positioning holes is provided on the right end face of the second connecting rod, a group of positioning pins is provided at the middle position of the left end of the rotating disk, and the diameter of the positioning pins is smaller than the diameter of the positioning holes provided on the right end face of the second connecting rod.

[0010] Furthermore, the right end surface of the second connecting rod is provided with an internal thread, the left end surface of the fixing column is provided with an external thread, and the external thread provided on the fixing column is meshed with the internal thread provided on the second connecting rod.

[0011] Furthermore, the tooth surfaces of the gear 1 and the gear 2 are coated with lubricating oil, and the entirety of the gear 2 is larger than the entirety of the gear 1.

[0012] Furthermore, a fixing hole is provided at the top of the second connecting rod, and the diameter of the fixing hole is larger than the diameter of the bottom end of the limiting pin.

[0013] The beneficial effects of the utility model are as follows: by rotating the rotating disk, the connecting rod 2 can drive the gear 2 to rotate, and through the meshing of the gear 2 and the gear 1, the fixed block connected to the outside of the connecting rod 1 also rotates, and the closed door connected through the fixed block also rotates, and the closed door will open at this time. The positioning pin inserted through the top of the fixed shell plays a role in fixing the connecting rod 1 to prevent the excessive pressure inside the valve body from pushing open the closed door, and the fixed shell prevents the gear 1 and the secondary gear 2 from being exposed to the outside, and the fixed column prevents the rotating disk from being separated from the connecting rod 2 when it rotates again. This design makes it convenient for the closed door to seal the valve body under the action of the rotating disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0015] Figure 1 This is a structural schematic diagram of a closed flange of a manual double-link closed valve of the utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of a valve body in a closed flange of a manual double-link closed valve of the utility model;

[0017] Figure 3 It is a connection diagram of a gear 1 in a closed flange of a manual double-link closed valve of the utility model;

[0018] In the figure: 1-valve body, 101-fixed shell, 102-sealing plate, 2-closed door, 301-gear one, 302-gear two, 303-connecting rod two, 304-fixed column, 305-locating pin, 306-rotating disk, 3-connecting rod one, 4-fixed block. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] See also Figure 1-Figure 3 The utility model provides a technical solution: a manual double-link sealed valve sealed flange, including a valve body 1, a fixed shell 101, a sealing plate 102, a closed door 2, a connecting rod 3, a gear 301, a gear 302, a connecting rod 303, a fixed column 304, a positioning pin 305, a rotating disk 306 and a fixed block 4, the closed door 2 is placed inside the valve body 1, and the inner wall of the valve body 1 is inserted with a connecting rod 3, the outside of the connecting rod 3 is connected to the sleeve provided at the bottom end of the fixed block 4 by welding, and the surface of the fixed block 4 is provided with two groups of screw holes, which are connected with the two groups of inner screw holes provided on the surface of the sealed closed door 2. The threads are connected and fixed by bolts, the right side of the valve body 1 is connected to a fixed shell 101, and the right side of the fixed shell 101 is connected to a sealing plate 102, the right end of the connecting rod 1 3 is inserted in the bottom position of the right side of the fixed shell 101, and the right end of the connecting rod 1 3 is connected to a gear 1 301, the left end of the connecting rod 2 303 is inserted in the top position of the right side of the sealing plate 102, the left end of the connecting rod 2 303 is connected to the gear 2 302, the right end of the connecting rod 2 303 is connected to a rotating disk 306, and the middle position on the right side of the rotating disk 306 is connected to a fixed column 304, and the bottom end of the positioning pin 305 is inserted in the top position of the fixed shell 101.

[0021] As the first embodiment of the utility model: a sealing ring is arranged around the outer periphery of the closed door 2, and this design plays a role in preventing leakage. The fixed shell 101 is fixed to the right side of the valve body 1 by welding, and this design prevents the fixed shell 101 from being separated from the valve body 1, and plays a role in sealing the gear 1 301 and the gear 2 302 at the same time. A limiting groove 1 is provided at the right end of the connecting rod 1 3, and a limiting groove 2 is provided in the middle position of the gear 1 301, and the limiting groove 2 provided in the middle of the gear 1 301 and the limiting groove 2 provided at the right end of the connecting rod 1 3 are The limit strip is connected to each other by knocking on it to fix it in the limit slot 1 and the limit slot 2. This design facilitates the installation and fixation of the gear 1 301, so that the rotation of the gear 1 301 can drive the connecting rod 1 3 to rotate, so that the closed door 2 is fully opened. The left end of the connecting rod 2 303 is provided with a limit slot 3, and a block is provided in the middle of the gear 2 302, and the width of the block is smaller than the width of the limit slot 3 provided at the left end of the connecting rod 2 303. This design allows the gear 2 302 to rotate when the rotating disk 306 is rotated, and the connecting rod 2 303 is rotated. A group of positioning holes is provided on the right end surface, and a group of positioning pins 305 are provided at the middle position of the left end of the rotating disk 306, and the diameter of the positioning pins is smaller than the diameter of the positioning holes provided on the right end surface of the second connecting rod 303. This design prevents the rotating disk 306 from self-rotation when rotating. The right end surface of the second connecting rod 303 is provided with an internal thread, and the left end surface of the fixed column 304 is provided with an external thread, and the external thread provided by the fixed column 304 is meshed with the internal thread provided by the second connecting rod 303. This design prevents the rotating disk 306 from being separated from the second connecting rod 303 when rotating. The tooth surfaces of gear 1 301 and gear 2 302 are coated with lubricating oil. This design plays a lubricating role to extend the service life of gear 1 301 and gear 2 302. The overall size of gear 2 302 is larger than that of gear 1 301. This design allows gear 1 301 to rotate two circles when gear 2 302 rotates one circle through the effect of the transmission ratio. A fixing hole is provided at the top of connecting rod 2 303, and the diameter of the fixing hole is larger than the diameter of the bottom end of the limit pin. This design plays a fixing role to prevent the pressure inside the valve body 1 from being too high and pushing open the closed door 2.

[0022] As the first embodiment of the present utility model: slightly rotate the rotating disk 306 by hand so that the positioning pin 305 on the top of the fixed shell 101 can be separated from the fixed shell 101, and the rotating disk 306 is rotated counterclockwise. At this time, the connecting rod 2 303 will also rotate, and the gear 2 302 will not rotate due to the connection between the block and the limit groove 3. The overall size of the gear 2 302 is larger than the overall size of the gear 2 302, so when the gear 2 302 rotates one circle, the gear 1 301 will rotate two circles. The connecting rod 1 3 is connected to the middle position of the gear 1 301, so when the gear 1 301 rotates one circle, the connecting rod 1 3 will also rotate one circle. The fixed block 4 is connected to the outer position of the connecting rod 1 3, so the fixed block 4 causes the closed door 2 to be in an open state under the action of the rotation of the connecting rod 1 3. This arrangement facilitates the opening and closing of the valve body 1, saves closing time, and saves labor.

[0023] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A manual double-link sealed valve sealed flange, comprising a valve body (1), a fixed shell (101), a sealing plate (102), a closed door (2), a connecting rod (3), a gear (301), a gear (302), a connecting rod (303), a fixed column (304), a positioning pin (305), a rotating disk (306), and a fixed block (4), characterized in that: A closed door (2) is placed inside the valve body (1), and a connecting rod (3) is inserted through the inner wall of the valve body (1). The outside of the connecting rod (3) is connected to a sleeve provided at the bottom end of a fixing block (4) and fixed by welding. The surface of the fixing block (4) is provided with two groups of screw holes, which are connected to two groups of internal threads provided on the surface of the closed door (2) and fixed by bolt connection. The right side of the valve body (1) is connected to a fixing shell (101), and the right side of the fixing shell (101) is connected to a sealing plate (102). The right end is inserted into the bottom end position of the right side of the fixed shell (101), and the right end of the connecting rod one (3) is connected to the gear one (301), the left end of the connecting rod two (303) is inserted into the top position of the right side of the sealing plate (102), the left end of the connecting rod two (303) is connected to the gear two (302), the right end of the connecting rod two (303) is connected to the rotating disk (306), and the middle position on the right side of the rotating disk (306) is connected to the fixed column (304), and the bottom end of the positioning pin (305) is inserted into the top position of the fixed shell (101).

2. A manual double-link sealed valve sealed flange according to claim 1, characterized in that: A sealing ring is provided around the outside of the closed door (2), and the fixed shell (101) is fixed to the right side of the valve body (1) by welding.

3. A manual double-link sealed valve sealed flange according to claim 1, characterized in that: The right end of the connecting rod 1 (3) is provided with a limiting groove 1, and the middle position of the gear 1 (301) is provided with a limiting groove 2, and the limiting groove 2 provided in the middle of the gear 1 (301) is connected with the limiting groove 2 provided at the right end of the connecting rod 1 (3), and the limiting strip is fixed inside the limiting groove 1 and the limiting groove 2 by knocking.

4. A manual double-link sealed valve sealed flange according to claim 1, characterized in that: The left end of the second connecting rod (303) is provided with a limiting groove three, and the middle position of the second gear (302) is provided with a clamping block, and the width of the clamping block is smaller than the width of the limiting groove three provided at the left end of the second connecting rod (303).

5. The manual double-link sealed valve sealed flange according to claim 1, characterized in that: A group of positioning holes is provided on the right end surface of the second connecting rod (303), and a group of positioning pins (305) is provided at the middle position of the left end of the rotating disk (306), and the diameter of the positioning pins is smaller than the diameter of the positioning holes provided on the right end surface of the second connecting rod (303).

6. The manual double-link sealed valve sealed flange according to claim 1, characterized in that: The right end surface of the second connecting rod (303) is provided with an internal thread, and the left end surface of the fixing column (304) is provided with an external thread, and the external thread of the fixing column (304) is meshed with the internal thread of the second connecting rod (303).

7. The manual double-link sealed valve sealed flange according to claim 1, characterized in that: The tooth surfaces of the gear 1 (301) and the gear 2 (302) are coated with lubricating oil, and the entirety of the gear 2 (302) is larger than the entirety of the gear 1 (301).

8. The manual double-link sealed valve sealed flange according to claim 1, characterized in that: The top of the second connecting rod (303) is provided with a fixing hole, and the diameter of the fixing hole is larger than the diameter of the bottom end of the limiting pin.

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