Marine butterfly valve worm gear head

Abstract

The utility model discloses a marine butterfly valve worm gear head which comprises an L-shaped seat, and the L-shaped seat is installed above the worm gear head through a screw. The connecting block is fixedly connected between the guide sleeve and the L-shaped seat; the sliding rod and the positioning block are fixedly connected to the side face of the L-shaped base. The insertion rod is slidably mounted in the guide sleeve, and an auxiliary block is fixedly mounted on the side face of the insertion rod; the end part of the fixing bolt penetrates through the auxiliary block and is screwed into the side surface of the right side positioning block; the connecting ring is fixedly mounted on the outer side of the hand wheel; the supporting plate is fixedly mounted on the outer side of the worm wheel head; the protective cover is fixedly connected to the upper portion of the supporting plate, and a screw rod is fixedly connected to the top of the protective cover; and the cover plate is located at the top of the protective cover. The hand wheel can be limited, the hand wheel can be effectively prevented from accidentally rotating, the valve plate is prevented from rotating, fluid leakage is avoided, and the working stability of the butterfly valve is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to worm wheel head field, concretely relates to a marine butterfly valve worm wheel head. BACKGROUND

[0002] Marine butterfly valve is used for controlling the equipment of fluid flow in the pipeline of ship, such as patent application number: 201920119354.6, discloses an improved type of clamping butterfly valve, including valve body, valve plate, valve plate sealing ring, valve rod, base, upper connecting pipe, worm wheel head and hand wheel, the valve plate is with valve rod as the demarcation line and forms two semicircular plates, the outer edge of two semicircular plates respectively extends to the opposite direction and forms first convex block and second convex block, the valve plate sealing ring is respectively provided with first sealing ring protruding block and second sealing ring protruding block matched with first convex block and second convex block, the outer edge of first sealing ring protruding block and second sealing ring protruding block respectively extends to the direction of valve plate. It has the following advantages: the single sealing structure mode of the original valve plate side and valve plate sealing ring has solved the problem of poor sealing effect and poor sealing stability, thereby greatly improving the sealing performance of clamping butterfly valve, and ensuring that clamping butterfly valve has continuous, stable and good use effect.

[0003] But the patent still has the following defects: since the hand wheel connected with the worm wheel head is not provided with a limiting component, the hand wheel will accidentally rotate once being impacted by external objects or external vibration, causing the valve plate to accidentally rotate, under the condition that no worker detects, the closed butterfly valve can possibly produce fluid leakage phenomenon, causing the butterfly valve to work unstably. UTILITY MODEL CONTENT

[0004] In view of the above defects or deficiencies in the prior art, it is expected to provide a marine butterfly valve worm wheel head, which can limit the hand wheel, effectively prevent the hand wheel from accidentally rotating, prevent the valve plate from rotating, avoid fluid leakage, and improve the working stability of the butterfly valve.

[0005] According to the technical scheme provided by the utility model embodiment, a marine butterfly valve worm wheel head is provided, which comprises an L-shaped seat, the L-shaped seat is installed above the worm wheel head through screws, the bottom of the L-shaped seat is provided with a mounting hole, a connecting block is fixedly connected between the guide sleeve and the L-shaped seat, a sliding rod and a positioning block are fixedly connected to the side surface of the L-shaped seat, the positioning block comprises two positioning blocks, the positioning blocks are respectively located on the left and right sides of the sliding rod, the guide sleeve is respectively located on the left and right sides of the positioning block, a plug rod is slidably installed in the guide sleeve, the side surface of the plug rod is fixedly provided with an auxiliary block, the sliding rod is in sliding contact with the plug rod, the sliding rod is respectively located above and below the plug rod, the thickness of the auxiliary block is less than the diameter of the plug rod, a fixing bolt is provided, the end of the fixing bolt penetrates through the auxiliary block and is screwed into the side surface of the right positioning block, the side surface of the auxiliary block is provided with a first perforation corresponding to the fixing bolt, the side surface of the positioning block is provided with a screw groove matched with the fixing bolt, a connecting ring is fixedly installed on the outer side of the hand wheel, the side surface of the connecting ring is provided with an insertion hole, the insertion hole is arranged in an annular array, the end of the plug rod is inserted into the insertion hole, a support plate is fixedly installed on the outer side of the worm wheel head, a first spacing is arranged between the bottom of the connecting ring and the support plate, a protective cover is fixedly connected above the support plate, the top of the protective cover is fixedly connected with a screw rod, the protective cover is a hollow structure, the protective cover is located on the outer side of the L-shaped seat, the connecting block, the guide sleeve, the sliding rod, the positioning block, the plug rod, the auxiliary block, the fixing bolt and the connecting ring, a cover plate is located on the top of the protective cover, the side surface of the cover plate is provided with a second perforation corresponding to the screw rod, the screw rod penetrates through the second perforation, the outer side of the screw rod is screwed with a nut, the nut abuts against the cover plate, an electric heating tube is installed below the cover plate through a mounting ring and a screw, the electric heating tube is located above the L-shaped seat, and a second spacing is arranged between the L-shaped seat and the electric heating tube.

[0006] To sum up, the utility model has the advantages of:

[0007] 1. The L-shaped seat, the connecting block, the guide sleeve, the sliding rod, the positioning block, the plug rod, the auxiliary block, the fixing bolt and the connecting ring are arranged, the hand wheel can be limited, the hand wheel can be effectively prevented from rotating accidentally, the valve plate can be prevented from rotating, fluid leakage can be avoided, and the working stability of the butterfly valve is improved.

[0008] 2. The support plate, the protective cover, the screw rod, the cover plate and the electric heating tube are arranged, the inside of the protective cover can be heated and dehumidified, the L-shaped seat, the connecting block, the guide sleeve, the sliding rod, the positioning block, the plug rod, the auxiliary block, the fixing bolt and the connecting ring can be prevented from rusting, and the service life is improved. BRIEF DESCRIPTION OF DRAWINGS

[0009] Other features, objects, and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments thereof, when read in connection with the following drawings:

[0010] Figure 1 is a structural schematic view of the connection between the butterfly valve body and the connecting ring of the present application;

[0011] Figure 2 is a structural schematic view of the side view of the connecting ring of the present application;

[0012] Figure 3 is a structural schematic view of the connection between the L-shaped seat, the guide sleeve, the sliding rod, the positioning block, the insertion rod, the auxiliary block, the fixing bolt and the connecting ring of the present application;

[0013] Figure 4 is a structural schematic view of the side view of the connection between the L-shaped seat, the positioning block, the insertion rod, the auxiliary block and the fixing bolt of the present application;

[0014] Figure 5 is a structural schematic view of the connection between the connecting block and the guide sleeve of the present application;

[0015] Figure 6 is a structural schematic view of the connection between the cover plate and the electric heating tube of the present application.

[0016] Reference signs in the drawings: 1, valve body; 7, worm wheel head; 71, hand wheel; 11, L-shaped seat; 12, connecting block; 13, guide sleeve; 14, sliding rod; 15, positioning block; 16, insertion rod; 17, auxiliary block; 18, fixing bolt; 19, connecting ring; 20, support plate; 21, protective cover; 22, screw rod; 23, cover plate; 24, electric heating tube. DETAILED DESCRIPTION

[0017] The present application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related application, and are not a limitation on the application. In addition, it should be noted that only the parts related to the application are shown in the drawings for ease of description.

[0018] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0019] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6The utility model provides a marine butterfly valve worm wheel head, including L type seat 11, L type seat 11 is installed through screw in the top of worm wheel head 7, connecting block 12 is fixedly connected between guide bushing 13 with L type seat 11, slide rod 14 and positioning block 15 are all fixedly connected in the side of L type seat 11, plug rod 16 is slidably installed in the inside of guide bushing 13, and the side of plug rod 16 is fixedly installed with auxiliary block 17, fixed bolt 18 is inserted into the side of right positioning block 15 through auxiliary block 17, connecting ring 19 is fixedly installed in the outside of hand wheel 71, support plate 20 is fixedly installed in the outside of worm wheel head 7, protective cover 21 is fixedly connected in the top of support plate 20, and the top of protective cover 21 is fixedly connected with screw rod 22, cover plate 23 is located in the top of protective cover 21, electric heating tube 24 is installed in the below of cover plate 23 through mounting ring and screw.

[0020] As Figure 1 , Figure 3 , Figure 4 and Figure 5 , the bottom of L type seat 11 is provided with mounting hole, which facilitates the installation of L type seat 11, the slide rod 14 is in sliding contact with the plug rod 16, and the slide rod 14 is located above and below the plug rod 16 respectively. The positioning block 15 has two, and the positioning block 15 is located on the left and right sides of the slide rod 14 respectively, and the guide bushing 13 is located on the left and right sides of the positioning block 15 respectively.

[0021] As Figure 1 , Figure 2 , Figure 3 and Figure 4 , the thickness of the auxiliary block 17 is less than the diameter of the plug rod 16, the side of the auxiliary block 17 is provided with a first perforation corresponding to the fixed bolt 18, the side of the positioning block 15 is provided with a screw groove corresponding to the fixed bolt 18, which facilitates the installation of the fixed bolt 18, and a rubber gasket is arranged between the fixed bolt 18 and the auxiliary block 17. The side of the connecting ring 19 is provided with a plug hole, the plug holes are arranged in an annular array, and a spacing is arranged between adjacent plug holes, the end of the plug rod 16 is inserted into the plug hole, and a first spacing is arranged between the bottom of the connecting ring 19 and the support plate 20.

[0022] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the side of the protective cover 21 is provided with a controller, the electric heating tube 24 is electrically connected with the controller, which facilitates control, the protective cover 21 is a hollow structure, the protective cover 21 is located outside the L-shaped seat 11, the connecting block 12, the guide sleeve 13, the sliding rod 14, the positioning block 15, the plug rod 16, the auxiliary block 17, the fixing bolt 18 and the connecting ring 19, the electric heating tube 24 is located above the L-shaped seat 11, and the second spacing is arranged between the L-shaped seat 11 and the electric heating tube 24. The side of the cover plate 23 is provided with a second perforation corresponding to the screw rod 22, the screw rod 22 penetrates through the second perforation, which facilitates the penetration of the screw rod 22, and the outer side of the screw rod 22 is screwed with a nut, and the nut abuts above the cover plate 23.

[0023] In use: through the setting of the L-shaped seat 11, the connecting block 12, the guide sleeve 13, the sliding rod 14, the positioning block 15, the plug rod 16, the auxiliary block 17, the fixing bolt 18 and the connecting ring 19, the hand wheel 71 can be limited, which can effectively prevent the hand wheel 71 from rotating accidentally, prevent the valve plate from rotating, avoid fluid leakage, improve the working stability of the butterfly valve, and at the same time, the electric heating tube 24 can be connected to the power supply, the inside of the protective cover 21 can be heated and dehumidified, the inside L-shaped seat 11, the connecting block 12, the guide sleeve 13, the sliding rod 14, the positioning block 15, the plug rod 16, the auxiliary block 17, the fixing bolt 18 and the connecting ring 19 can be prevented from rusting, thereby facilitating the improvement of the service life, when the hand wheel 71 needs to be rotated, the nut is unscrewed, the cover plate 23 is removed, the fixing bolt 18 is unscrewed, the plug rod 16 is rotated, the auxiliary block 17 is adjusted from the vertical state to the horizontal state, the plug rod 16 is moved to the left, the end of the plug rod 16 is moved out of the insertion hole of the connecting ring 19, the auxiliary block 17 is adjusted from the horizontal state to the vertical state, the auxiliary block 17 corresponds to the left positioning block 15, the end of the fixing bolt 18 is screwed into the side of the left positioning block 15 through the auxiliary block 17, and the limitation of the hand wheel 71 is released, at this time, the hand wheel 71 can be rotated.

[0024] It should be noted that the valve body 1, the worm gear head 7 and the hand wheel 71 in the product are derived from the prior art, and the specific structure and working principle can refer to the Chinese utility model patent disclosed in patent application No. 201920119354.6.

[0025] The above description is only the preferred embodiment of the present application and the explanation of the technical principle and scheme applied. Meanwhile, the invention range involved in the present application is not limited to the technical scheme formed by the specific combination of the above technical features, and should also cover other technical schemes formed by the combination of the above technical features or equivalent features without departing from the invention concept. For example, the technical scheme formed by the mutual replacement of the above features and the technical features with similar functions disclosed in the present application (but not limited to).

Claims

1. A marine butterfly valve worm gear head, characterized in that: Includes an L-shaped seat (11), which is mounted on top of the worm gear head (7) by screws; A connecting block (12) is fixedly connected between the guide sleeve (13) and the L-shaped seat (11); The slide rod (14) and the positioning block (15) are both fixedly connected to the side of the L-shaped seat (11); Insert rod (16), the insert rod (16) is slidably installed inside the guide sleeve (13), and an auxiliary block (17) is fixedly installed on the side of the insert rod (16); A fixing bolt (18) is provided, the end of which passes through the auxiliary block (17) and is screwed into the side of the positioning block (15) on the right side. A connecting ring (19) is fixedly installed on the outside of the handwheel (71); Support plate (20), the support plate (20) is fixedly installed on the outside of the worm gear head (7); A protective cover (21) is fixedly connected above the support plate (20), and a screw (22) is fixedly connected to the top of the protective cover (21). Cover plate (23), said cover plate (23) is located on top of the protective cover (21); The heating element (24) is mounted below the cover plate (23) by means of a mounting ring and screws.

2. The marine butterfly valve worm gear head according to claim 1, characterized in that: The bottom of the L-shaped seat (11) is provided with a mounting hole, the slide rod (14) slides in contact with the insertion rod (16), and the slide rod (14) is located above and below the insertion rod (16).

3. The marine butterfly valve worm gear head according to claim 1, characterized in that: There are two positioning blocks (15), which are located on the left and right sides of the slide rod (14) respectively, and the guide sleeves (13) are located on the left and right sides of the positioning blocks (15) respectively.

4. The marine butterfly valve worm gear head according to claim 1, characterized in that: The thickness of the auxiliary block (17) is less than the diameter of the insertion rod (16). The side of the auxiliary block (17) is provided with a first through hole corresponding to the fixing bolt (18). The side of the positioning block (15) is provided with a threaded groove that matches the fixing bolt (18).

5. A marine butterfly valve worm gear head according to claim 1, characterized in that: The connecting ring (19) has insertion holes on its side, which are arranged in a ring array. The end of the insertion rod (16) is inserted into the insertion holes. A first gap is provided between the bottom of the connecting ring (19) and the support plate (20).

6. The marine butterfly valve worm gear head according to claim 1, characterized in that: The protective cover (21) is a hollow structure. The protective cover (21) is located outside the L-shaped seat (11), the connecting block (12), the guide sleeve (13), the slide rod (14), the positioning block (15), the insertion rod (16), the auxiliary block (17), the fixing bolt (18), and the connecting ring (19). The electric heating tube (24) is located above the L-shaped seat (11). A second gap is provided between the L-shaped seat (11) and the electric heating tube (24).

7. A marine butterfly valve worm gear head according to claim 1, characterized in that: The cover plate (23) has a second through hole corresponding to the screw (22) on its side. The screw (22) passes through the second through hole. A nut is screwed onto the outside of the screw (22). The nut abuts against the top of the cover plate (23).

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