Butterfly valve convenient for subsequent maintenance

Abstract

The utility model relates to the technical field of butterfly valves, and discloses a butterfly valve convenient for follow-up maintenance, which comprises a main body mechanism and an auxiliary mechanism, the auxiliary mechanism is positioned above the main body mechanism, the main body mechanism comprises a butterfly valve body, a lower valve body, an upper valve body, a clamping seat and a rotating handle, the lower valve body is fixedly mounted at the upper end of the butterfly valve body, and the upper valve body is fixedly mounted at the lower end of the butterfly valve body. The upper valve body is movably installed at the upper end of the lower valve body, the clamping seat is fixedly installed at the rear end of the lower valve body, the rotating handle is movably installed at the left end of the clamping seat, and the main body mechanism further comprises a bidirectional lead screw and a movable sleeve. According to the butterfly valve facilitating follow-up maintenance, by installing the main body mechanism, in the using process of the butterfly valve body, a worker can rotate a rotating handle and properly adjust the position of a clamping block, the upper valve body and the lower valve body can be connected and disassembled, the worker can conveniently conduct overhaul and maintenance operation on the butterfly valve body, and the practicability is high. And the connecting stability of the butterfly valve body can be guaranteed, and the using practicability of the butterfly valve body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve which is convenient for subsequent maintenance. Background Art

[0002] The butterfly valve, also known as the flap valve, is a regulating valve with a simple structure. The butterfly valve is not only small in size, light in weight, and easy to operate, but also has good flow regulation function and closing and sealing characteristics. Therefore, the butterfly valve is widely used.

[0003] The existing technical disclosure number CN210423748U patent document provides a butterfly valve that is easy to maintain. The utility model effectively facilitates the staff to lubricate or replace the upper bearing and the lower bearing in the upper valve body and the lower valve body by setting a holder, a holder and a sliding rod, avoiding the inconvenience of removing the integrally cast valve body from the pipeline when replacing it, effectively improving the maintenance efficiency of the staff and meeting the needs of use.

[0004] However, the existing butterfly valve, which is convenient for subsequent maintenance, is not convenient for ensuring the stability of the connection at the maintenance point during use. The existing butterfly valve uses the restoring force of the spring to position the valve body connection, but during the long-term use of the spring and under repeated compression, the recovery effect of the spring elastic potential energy will deteriorate, which will directly affect the stability of the butterfly valve connection and affect the normal use of the butterfly valve. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model aims to provide a butterfly valve which is convenient for subsequent maintenance, so as to solve the problem in the above background technology that the existing butterfly valve which is convenient for subsequent maintenance is not convenient for ensuring the stability of the connection at the maintenance position when in use.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a butterfly valve convenient for subsequent maintenance, comprising a main mechanism and an auxiliary mechanism, wherein the auxiliary mechanism is located above the main mechanism, and the main mechanism comprises a butterfly valve body, a lower valve body, an upper valve body, a clamping seat and a turning handle, wherein the lower valve body is fixedly mounted on the upper end of the butterfly valve body, the upper valve body is movably mounted on the upper end of the lower valve body, the clamping seat is fixedly mounted on the rear end of the lower valve body, and the turning handle is movably mounted on the left end of the clamping seat;

[0009] The main mechanism also includes a bidirectional screw, a movable sleeve, a clamping block, a clamping hole and a clamping plate. The bidirectional screw is fixedly installed on the right end of the turning handle, and the movable sleeve is threadedly connected to the left and right ends of the outer end of the bidirectional screw. The clamping block is located in front of the movable sleeve, and the clamping hole is fixedly arranged on the outer end of the lower valve body. The clamping plate is fixedly installed on the lower end of the upper valve body, and the clamping block is movably connected to the clamping plate.

[0010] Preferably, the auxiliary mechanism comprises a fixing seat, the fixing seat is fixedly mounted on the right end of the inner end of the clamping seat, and the right end of the bidirectional screw rod is rotatably connected to the fixing seat.

[0011] Preferably, the auxiliary mechanism further comprises a connecting rod and a connecting plate, wherein the connecting rod is fixedly mounted on the upper end of the movable sleeve, and the connecting plate is fixedly mounted on the lower end of the connecting rod, and the connecting plate is located at the outer end of the clamping block.

[0012] Preferably, the auxiliary mechanism further comprises a positioning hole and a positioning rod, wherein the positioning hole is fixedly arranged at the left end of the holder, and the positioning rod is movably installed at the left end of the turning handle.

[0013] Preferably, the auxiliary mechanism further comprises a hand wheel and a valve stem, wherein the hand wheel is movably mounted on the upper end of the upper valve body, and the valve stem is movably mounted on the lower end of the upper valve body.

[0014] Preferably, the auxiliary mechanism further comprises a docking sealing groove, the docking sealing groove is fixedly arranged inside the lower valve body, and the clamping plate is movably connected to the docking sealing groove.

[0015] Preferably, the auxiliary mechanism further comprises a sealing plate, wherein the sealing plate is fixedly mounted on the lower end of the upper valve body and the sealing plate is located on the inner side of the clamping plate.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The butterfly valve, which is convenient for subsequent maintenance, is installed with a main body mechanism, so that during the use of the butterfly valve body, the staff can properly adjust the position of the block by turning the handle to achieve the connection and disassembly of the upper valve body and the lower valve body, which is convenient for the staff to perform maintenance operations on the butterfly valve body, and can ensure the stability of its connection, thereby improving the practicality of the use of the butterfly valve body;

[0018] 2. The butterfly valve, which is convenient for subsequent maintenance, realizes that during the installation and use of the butterfly valve body, the design of the positioning rod and the positioning hole provides a limiting effect for the turning handle, and the design of the docking sealing groove and the sealing plate ensures the sealing of the connection between the upper valve body and the lower valve body, thereby improving the protectiveness of the butterfly valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the three-dimensional structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the upper valve body of the utility model.

[0021] Figure 3 It is a three-dimensional structural diagram of the main mechanism of the utility model.

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the auxiliary mechanism of the utility model.

[0023] In the figure: 1. Main mechanism; 101. Butterfly valve body; 102. Lower valve body; 103. Upper valve body; 104. Clamping seat; 105. Turning handle; 106. Bidirectional screw rod; 107. Movable sleeve; 108. Clamping block; 109. Clamping hole; 110. Clamping plate; 2. Auxiliary mechanism; 201. Fixed seat; 202. Connecting rod; 203. Connecting plate; 204. Positioning hole; 205. Positioning rod; 206. Handwheel; 207. Valve stem; 208. Docking sealing groove; 209. Sealing plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 - Figure 4 The utility model provides a technical solution: a butterfly valve convenient for subsequent maintenance, comprising a main mechanism 1 and an auxiliary mechanism 2, the auxiliary mechanism 2 is located above the main mechanism 1, the main mechanism 1 comprises a butterfly valve body 101, a lower valve body 102, an upper valve body 103, a clamping seat 104 and a turning handle 105, the lower valve body 102 is fixedly mounted on the upper end of the butterfly valve body 101, the upper valve body 103 is movably mounted on the upper end of the lower valve body 102, the clamping seat 104 is fixedly mounted on the rear end of the lower valve body 102, and the turning handle 105 is movably mounted on the left end of the clamping seat 104;

[0026] The main mechanism 1 also includes a bidirectional screw rod 106, a movable sleeve 107, a block 108, a clamping hole 109 and a clamping plate 110. The bidirectional screw rod 106 is fixedly installed at the right end of the turning handle 105. The movable sleeve 107 is threadedly connected to the left and right ends of the outer end of the bidirectional screw rod 106. The block 108 is located in front of the movable sleeve 107. The clamping hole 109 is fixedly set at the outer end of the lower valve body 102. The clamping plate 110 is fixedly installed at the lower end of the upper valve body 103. The block 108 is movably connected to the clamping plate 110. The staff rotates the turning handle 105 to make the two groups of movable sleeves 107 move in opposite directions on the bidirectional screw rod 106, and the movable sleeve 107 drives the clamping plate 110 to move in opposite directions. The block 108 moves outward, so that the block 108 is separated from the clamping plate 110 and the clamping hole 109, and the butterfly valve body 101 can be inspected and maintained. After the inspection and maintenance of the butterfly valve body 101 is completed, the staff will correspond the upper valve body 103 with the lower valve body 102 and connect them. The staff drives the two sets of movable sleeves 107 to move toward the middle on the two-way screw rod 106 by turning the turning handle 105. The movable sleeve 107 drives the block 108 to move toward the middle, so that the block 108 enters the inside of the clamping hole 109 and connects with the through hole on the clamping plate 110, thereby realizing the quick connection between the upper valve body 103 and the lower valve body 102.

[0027] The auxiliary mechanism 2 includes a fixed seat 201, which is fixedly mounted on the right end of the inner end of the clamping seat 104. The right end of the bidirectional screw rod 106 is rotatably connected to the fixed seat 201. The auxiliary mechanism 2 also includes a connecting rod 202 and a connecting plate 203. The connecting rod 202 is fixedly mounted on the upper end of the movable sleeve 107, and the connecting plate 203 is fixedly mounted on the lower end of the connecting rod 202. The connecting plate 203 is located at the outer end of the clamping block 108. The auxiliary mechanism 2 also includes a positioning hole 204 and a positioning rod 20 5. The positioning hole 204 is fixedly arranged at the left end of the card seat 104, and the positioning rod 205 is movably installed at the left end of the turning handle 105. The auxiliary mechanism 2 also includes a hand wheel 206 and a valve stem 207. The hand wheel 206 is movably installed at the upper end of the upper valve body 103, and the valve stem 207 is movably installed at the lower end of the upper valve body 103. The auxiliary mechanism 2 also includes a docking sealing groove 208, which is fixedly arranged inside the lower valve body 102, and the card plate 110 is movably connected to the docking sealing groove 208. The auxiliary mechanism 2 also includes a sealing plate 209, which is fixedly mounted at the lower end of the upper valve body 103. The sealing plate 209 is located on the inner side of the clamping plate 110. During the use of the butterfly valve body 101, the staff drives the valve stem 207 to rotate by rotating the hand wheel 206 to adjust the internal flow of the butterfly valve body 101. When the butterfly valve body 101 needs to be inspected and maintained, the staff pulls the positioning rod 205 to separate it from the positioning hole 204 and releases the limit on the turning handle 105. The staff can pull the sealing plate 209 out of the lower valve body 102 by pulling the hand wheel 206, and at the same time separate the clamping plate 110 from the docking sealing groove 208. The staff uses the positioning rod 205 to pass through the turning handle 105 and connect it with the corresponding positioning hole 204, limit the turning handle 105, and complete the installation of the butterfly valve body 101. The sealing plate 209 and the docking sealing groove 208 provide double sealing protection for the connection.

[0028] Working principle: During the use of the butterfly valve body 101, the staff drives the valve stem 207 to rotate by turning the hand wheel 206 to adjust the internal flow of the butterfly valve body 101. When the butterfly valve body 101 needs to be inspected and maintained, the staff pulls the positioning rod 205 to separate it from the positioning hole 204 and releases the limit of the turning handle 105. The staff rotates the turning handle 105 to make the two sets of movable sleeves 107 move in opposite directions on the two-way screw rod 106. The movable sleeve 107 drives the connecting rod 202 to move, and the connecting rod 202 drives the connecting plate 203 to move. The connecting plate 203 drives the block 108 to move outward, so that the block 108 is separated from the card plate 110 and the card hole 109. The staff can pull the sealing plate 209 out of the lower valve body 102 by pulling the hand wheel 206, and at the same time separate the card plate 110 from the docking sealing groove 208, so that the butterfly valve body 10 1. After the butterfly valve body 101 is overhauled, the staff will match the clamping plate 110 at the lower end of the upper valve body 103 with the butt sealing groove 208 at the upper end of the lower valve body 102, and connect them so that the sealing plate 209 enters the lower valve body 102, and the upper valve body 103 is fully connected with the lower valve body 102. The sealing plate 209 and the butt sealing groove 208 provide double sealing protection for the connection. The staff rotates the handle 105 to The two sets of movable sleeves 107 are moved toward the middle on the bidirectional screw rod 106, and the movable sleeves 107 drive the clamping block 108 to move toward the middle, so that the clamping block 108 enters the clamping hole 109 and connects with the through hole on the clamping plate 110, thereby realizing the quick connection between the upper valve body 103 and the lower valve body 102. The staff uses the positioning rod 205 to pass through the turning handle 105 and connect it with the corresponding positioning hole 204, limits the turning handle 105, and completes the installation of the butterfly valve body 101.

[0029] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A butterfly valve that is convenient for subsequent maintenance, comprising a main mechanism (1) and an auxiliary mechanism (2), characterized in that: The auxiliary mechanism (2) is located above the main mechanism (1); the main mechanism (1) comprises a butterfly valve body (101), a lower valve body (102), an upper valve body (103), a clamping seat (104) and a turning handle (105); the lower valve body (102) is fixedly mounted on the upper end of the butterfly valve body (101); the upper valve body (103) is movably mounted on the upper end of the lower valve body (102); the clamping seat (104) is fixedly mounted on the rear end of the lower valve body (102); and the turning handle (105) is movably mounted on the left end of the clamping seat (104); The main body mechanism (1) also includes a bidirectional screw rod (106), a movable sleeve (107), a clamping block (108), a clamping hole (109) and a clamping plate (110); the bidirectional screw rod (106) is fixedly mounted on the right end of the turning handle (105); the movable sleeve (107) is threadedly connected to the left and right ends of the outer end of the bidirectional screw rod (106); the clamping block (108) is located in front of the movable sleeve (107); the clamping hole (109) is fixedly arranged on the outer end of the lower valve body (102); the clamping plate (110) is fixedly mounted on the lower end of the upper valve body (103); and the clamping block (108) is movably connected to the clamping plate (110).

2. A butterfly valve that is convenient for subsequent maintenance according to claim 1, characterized in that: The auxiliary mechanism (2) comprises a fixed seat (201), the fixed seat (201) is fixedly mounted on the right end of the inner end of the clamping seat (104), and the right end of the bidirectional screw rod (106) is rotatably connected to the fixed seat (201).

3. A butterfly valve that is convenient for subsequent maintenance according to claim 2, characterized in that: The auxiliary mechanism (2) further comprises a connecting rod (202) and a connecting plate (203), wherein the connecting rod (202) is fixedly mounted on the upper end of the movable sleeve (107), and the connecting plate (203) is fixedly mounted on the lower end of the connecting rod (202), and the connecting plate (203) is located at the outer end of the clamping block (108).

4. A butterfly valve that is convenient for subsequent maintenance according to claim 3, characterized in that: The auxiliary mechanism (2) further comprises a positioning hole (204) and a positioning rod (205), wherein the positioning hole (204) is fixedly arranged at the left end of the holder (104), and the positioning rod (205) is movably mounted at the left end of the turning handle (105).

5. A butterfly valve convenient for subsequent maintenance according to claim 4, characterized in that: The auxiliary mechanism (2) further comprises a hand wheel (206) and a valve stem (207), wherein the hand wheel (206) is movably mounted on the upper end of the upper valve body (103), and the valve stem (207) is movably mounted on the lower end of the upper valve body (103).

6. A butterfly valve that is convenient for subsequent maintenance according to claim 5, characterized in that: The auxiliary mechanism (2) further comprises a docking sealing groove (208), wherein the docking sealing groove (208) is fixedly arranged inside the lower valve body (102), and the clamping plate (110) is movably connected to the docking sealing groove (208).

7. A butterfly valve convenient for subsequent maintenance according to claim 6, characterized in that: The auxiliary mechanism (2) further comprises a sealing plate (209), wherein the sealing plate (209) is fixedly mounted on the lower end of the upper valve body (103), and the sealing plate (209) is located on the inner side of the clamping plate (110).

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