Butterfly-shaped check valve

Abstract

The utility model relates to the technical field of check valves, and provides a butterfly check valve which comprises a valve body and a valve rod rotationally installed above one side of the valve body, a rotating disc is fixedly installed at the end of the valve rod, an inserting groove is formed in the other side of the rotating disc, an inserting block is installed in an inner cavity of the inserting groove in an inserted mode, and the inserting block is connected with the valve body in an inserted mode. According to the butterfly-shaped check valve, the clamping assemblies are arranged at the upper end and the lower end of the inserting block, the rotating cylinder is fixedly installed on one side of the inserting block, when the butterfly-shaped check valve is used, the rotating cylinder can be detached through the arrangement of the clamping assemblies when the butterfly-shaped check valve is not used, and it is avoided that clothes of workers are hung on the rotating cylinder to cause rotation of the rotating cylinder to affect normal use of the valve body; in addition, the detached rotary drum can be attracted to the outer side of the valve body through the arrangement of a magnetic attraction block, loss is avoided, the rotary drum can be driven to rotate through the arrangement of a rotating assembly, meanwhile, the length of a rotating rod in the rotary drum can be adjusted according to the working requirement of a worker, and therefore the worker can rotate a rotary knob more conveniently, and operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of check valves, in particular to a pair of butterfly check valves. Background Art

[0002] Valves are control components in pipeline fluid delivery systems, used to change the cross-section of the passage and the direction of medium flow, and have functions such as diversion, shutoff, throttling, non-return, diversion or overflow pressure relief. Valves used for fluid control, from the simplest shut-off valve to various valves used in extremely complex automatic control systems, have a wide variety of varieties and specifications, and the nominal diameter of the valve ranges from extremely small instrument valves to industrial pipeline valves with a diameter of up to 10m.

[0003] When the butterfly check valve is in use, there is a manual operating lever set on the outside of the valve body. For the convenience of operation, the manual operating lever is generally perpendicular to the valve body. Although this is convenient to operate, it is easy for the staff's clothes and tools to get caught on the manual operating lever. When the staff does not notice that the clothes are caught on the manual operating lever and moves the work, the manual operating lever may be pulled, and the working state of the butterfly check valve may be changed due to accidental operation of the manual operating lever, which has a certain impact on the operation of the butterfly check valve.

[0004] In view of this, the utility model proposes a butterfly check valve. Utility Model Content

[0005] The utility model provides a butterfly check valve and solves related technical problems.

[0006] The technical solution of the utility model is as follows: a butterfly check valve, comprising a valve body and a valve stem rotatably mounted above one side of the valve body, a rotating disk fixedly mounted on the end of the valve stem, and a slot is provided at the other side of the rotating disk, an insert block is plugged into the inner cavity of the slot, clamping components are provided at the upper and lower ends of the insert block, and a rotating cylinder is fixedly mounted on one side of the insert block, and a rotating component is provided in the inner cavity of the rotating cylinder.

[0007] Preferably, the clamping assembly includes a blind groove provided at the upper end of the plug block and an insert rod inserted in the blind groove, a sliding plate is fixedly installed on the upper end of the insert rod, and a slot is provided at the top of the inner cavity of the slot, the slot is connected with the top of the rotating disk through the slot, the outer side of the sliding plate is slidably installed in the inner cavity of the slot, a threaded rod is fixedly installed on the top of the sliding plate, and a fixed plate is fixedly installed above the inner cavity of the slot, a threaded sleeve is rotatably installed on the fixed plate, and the output shaft of the threaded rod is threadedly installed in the inner cavity of the threaded sleeve, the top end of the threaded sleeve extends to the top of the rotating disk, and the upper end of the threaded sleeve is fixedly installed with a rotating disk.

[0008] Preferably, a magnetic block is fixedly mounted on one side of the top of the drum.

[0009] Preferably, the rotating assembly includes a rotating rod inserted in the inner cavity of the rotating drum and a knob fixedly installed at the end of the rotating rod, a plurality of positioning grooves are opened at the left end of the bottom of the rotating rod, and a positioning block is inserted and installed in the inner cavity of the positioning groove, an embedded groove is opened at the bottom surface of the inner cavity of the rotating drum, and a movable plate is slidably installed above the inner cavity of the embedded groove, the bottom end of the positioning block extends to the inner cavity of the embedded groove and is fixedly installed on the outer wall of the outer side of the movable plate, a flat plate is fixedly installed at the lower part of the inner cavity of the embedded groove, and a pull rod is slidably installed on the flat plate, the upper end of the pull rod is fixedly installed on the outer wall of the outer side of the movable plate, and the outer movable sleeve of the pull rod is provided with a spring, and the two ends of the spring are respectively fixedly installed on the outer walls of the movable plate and the flat plate.

[0010] Preferably, the lower end of the pull rod extends to the outside of the drum, and a pulling plate is fixedly mounted on the lower end of the pull rod.

[0011] The working principle and beneficial effects of the utility model are as follows: when the butterfly check valve is in use, the setting of the clamping assembly can be used to disassemble the rotating drum when not in use, so as to prevent the staff's clothes from getting caught on the rotating drum and causing its rotation to affect the normal use of the valve body; in addition, the setting of the magnetic suction block can adsorb the disassembled rotating drum on the outside of the valve body to avoid loss, and the setting of the rotating assembly can drive the rotating drum to rotate. At the same time, the length of the rotating rod in the rotating drum can be adjusted according to the work needs of the staff, so that it is more convenient for the staff to turn the knob and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0013] Figure 1 It is a front cross-sectional view of the utility model;

[0014] Figure 2 It is a front view of the utility model;

[0015] Figure 3 For the utility model Figure 1 Enlarged view of point A in the middle;

[0016] Figure 4 For the utility model Figure 1 Enlarged view of point B in the middle.

[0017] In the figure: 1. valve body; 2. valve stem; 3. rotating disk; 4. slot; 5. plug-in block; 6. snap-on assembly; 61. plug-in rod; 62. sliding plate; 63. threaded rod; 64. fixed plate; 65. threaded sleeve; 66. rotating disk; 7. rotating drum; 71. magnetic block; 8. rotating assembly; 81. rotating rod; 82. knob; 83. positioning block; 84. movable plate; 85. flat plate; 86. pull rod; 861. pulling plate; 87. spring. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0020] The utility model embodiment provides a butterfly check valve, such as Figure 1-4 As shown, it includes a valve body 1 and a valve stem 2 rotatably installed on the upper side of the valve body 1, a rotating disk 3 is fixedly installed on the end of the valve stem 2, and a slot 4 is opened on the other side of the rotating disk 3, an insert block 5 is inserted into the inner cavity of the slot 4, and clamping components 6 are provided at the upper and lower ends of the insert block 5, and a rotating cylinder 7 is fixedly installed on one side of the insert block 5, and a rotating component 8 is provided in the inner cavity of the rotating cylinder 7.

[0021] It should be noted that the valve body 1 can be used to open and close the water flow, and the rotating assembly 8 can drive the drum 7 to rotate, thereby driving the valve stem 2 to rotate through the transmission of the rotating disk 3 to achieve opening control of the valve body 1.

[0022] In an embodiment of the utility model, the clamping assembly 6 includes a blind groove provided at the upper end of the plug block 5 and an insert rod 61 inserted in the blind groove, a sliding plate 62 is fixedly installed on the upper end of the insert rod 61, and a groove is provided at the top of the inner cavity of the slot 4, the slot 4 is connected with the top of the rotating disk 3 through the groove, the outer side of the sliding plate 62 is slidably installed in the inner cavity of the groove, a threaded rod 63 is fixedly installed on the top of the sliding plate 62, and a fixed plate 64 is fixedly installed above the inner cavity of the groove, a threaded sleeve 65 is rotatably installed on the fixed plate 64, and the output shaft of the threaded rod 63 is threadedly installed in the inner cavity of the threaded sleeve 65, the top end of the threaded sleeve 65 extends to the top of the rotating disk 3, and a rotating disk 66 is fixedly installed on the upper end of the threaded sleeve 65.

[0023] It should be noted that when the valve body 1 is opened or closed, the rotating drum 7 can be disassembled by rotating the rotating disk 66. When the rotating disk 66 rotates, the threaded sleeve 65 will be driven to rotate. When the threaded sleeve 65 rotates, the threaded rod 63 will be driven to move to the side away from the plug block 5, thereby driving the sliding plate 62 to move to the opposite side, which can drive the inner cavity of the blind groove of the raw material of the plug rod 61. At this time, the plug block 5 on the rotating drum 7 can be moved away from the inner cavity of the slot 4, and the disassembly of the rotating drum 7 is completed.

[0024] In the embodiment of the present utility model, a magnetic block 71 is fixedly installed on one side of the top of the rotating drum 7 .

[0025] It should be noted that, by providing the magnetic block 71 , the disassembled rotating drum 7 can be adsorbed on the valve body 1 to prevent it from falling, making it convenient for installation and use when needed.

[0026] In the embodiment of the utility model, the rotating assembly 8 includes a rotating rod 81 inserted in the inner cavity of the rotating drum 7 and a knob 82 fixedly installed at the end of the rotating rod 81. A plurality of positioning grooves are provided at the left end of the bottom of the rotating rod 81, and a positioning block 83 is inserted and installed in the inner cavity of the positioning groove. An embedded groove is provided at the bottom surface of the inner cavity of the rotating drum 7, and a movable plate 84 is slidably installed at the upper part of the inner cavity of the embedded groove. The bottom end of the positioning block 83 extends to the inner cavity of the embedded groove and is fixedly installed on the outer wall of the movable plate 84. A flat plate 85 is fixedly installed at the lower part of the inner cavity of the embedded groove, and a pull rod 86 is slidably installed on the flat plate 85. The upper end of the pull rod 86 is fixedly installed on the outer wall of the movable plate 84, and the outer movable sleeve of the pull rod 86 is provided with a spring 87, and the two ends of the spring 87 are respectively fixedly installed on the outer walls of the movable plate 84 and the flat plate 85.

[0027] The rotation of the rotary drum 7 can be achieved by turning the knob 82. The rotation of the rotary drum 7 will drive the rotating disk 3 to rotate. The rotation of the rotating disk 3 will drive the valve stem 2 to rotate, thereby realizing the opening operation of the valve body 1. In addition, the length of the rotating rod 81 in the rotary drum 7 can be adjusted as needed before the knob 82, so that the staff can more conveniently turn the knob 82 to move the pull rod 86 downward. When the pull rod 86 moves downward, it will drive the movable plate 84 to move downward and squeeze the spring 87. When the movable plate 84 moves downward, it will drive the positioning block 83 to move downward and away from the inner cavity of the positioning groove. Then, the rotating rod 81 is moved left and right in the inner cavity of the rotary drum 7. After adjusting to the appropriate position, the pulled pull rod 86 can be released, so that the pull rod 86 moves upward and recovers under the action of the spring 87, thereby causing the positioning block 83 to continue to be inserted into the inner cavity of one of the positioning grooves, thereby completing the fixation of the rotating rod 81.

[0028] In the embodiment of the present utility model, the lower end of the pull rod 86 extends to the outside of the drum 7 , and a pulling plate 861 is fixedly mounted on the lower end of the pull rod 86 .

[0029] It should be noted that the provision of the pulling plate 861 makes it convenient for the staff to pull the pulling plate 861 to drive the pulling rod 86 to move downward, and the operation is convenient.

[0030] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A butterfly check valve, comprising a valve body (1) and a valve stem (2) rotatably mounted above one side of the valve body (1), characterized in that: A rotating disk (3) is fixedly mounted on the end of the valve stem (2), and a slot (4) is provided on the other side of the rotating disk (3). An insert block (5) is inserted into the inner cavity of the slot (4), and clamping components (6) are provided at the upper and lower ends of the insert block (5). A rotating cylinder (7) is fixedly mounted on one side of the insert block (5), and a rotating component (8) is provided in the inner cavity of the rotating cylinder (7).

2. A butterfly check valve according to claim 1, characterized in that: The clamping assembly (6) comprises a blind groove formed at the upper end of the plug block (5) and an insert rod (61) inserted into the blind groove; a sliding plate (62) is fixedly mounted on the upper end of the insert rod (61); a groove is formed at the top of the inner cavity of the slot (4); the slot (4) is connected to the top of the rotating disk (3) through the groove; the outer side of the sliding plate (62) is slidably mounted in the inner cavity of the groove; a threaded rod (63) is fixedly mounted on the top of the sliding plate (62); a fixed plate (64) is fixedly mounted above the inner cavity of the groove; a threaded sleeve (65) is rotatably penetrated and mounted on the fixed plate (64); an output shaft of the threaded rod (63) is threadedly mounted in the inner cavity of the threaded sleeve (65); the top end of the threaded sleeve (65) extends to the top of the rotating disk (3); and a rotating disk (66) is fixedly mounted on the upper end of the threaded sleeve (65).

3. A butterfly check valve according to claim 1, characterized in that: A magnetic attraction block (71) is fixedly mounted on one side of the top of the rotating drum (7).

4. A butterfly check valve according to claim 1, characterized in that: The rotating assembly (8) comprises a rotating rod (81) inserted in the inner cavity of the rotating drum (7) and a knob (82) fixedly mounted at the end of the rotating rod (81); a plurality of positioning grooves are provided at the left end of the bottom of the rotating rod (81); a positioning block (83) is inserted in the inner cavity of the positioning groove; an embedded groove is provided at the bottom surface of the inner cavity of the rotating drum (7); a movable plate (84) is slidably mounted above the inner cavity of the embedded groove; the bottom end of the positioning block (83) extends to the inner cavity of the embedded groove and is fixedly mounted on the outer wall of the movable plate (84); a flat plate (85) is fixedly mounted below the inner cavity of the embedded groove; a pull rod (86) is slidably mounted on the flat plate (85); the upper end of the pull rod (86) is fixedly mounted on the outer wall of the movable plate (84); a spring (87) is provided on the outer movable sleeve of the pull rod (86); the two ends of the spring (87) are respectively fixedly mounted on the outer walls of the movable plate (84) and the flat plate (85).

5. A butterfly check valve according to claim 4, characterized in that: The lower end of the pull rod (86) extends to the outside of the rotating drum (7), and a pulling plate (861) is fixedly mounted on the lower end of the pull rod (86).

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