Worm gear butterfly valve device with adjusting mechanism

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a worm gear butterfly valve device with an adjusting mechanism, which comprises a valve body, the outer wall of the valve body is fixedly connected with a shell, a valve is arranged in the valve body, the valve penetrates through the valve body and the shell and is rotatably connected with the valve body and the shell, the top of the valve is fixedly connected with a driven worm gear, and the driven worm gear is fixedly connected with the adjusting mechanism. The driven worm gear is meshed with a worm, the worm is rotationally connected with the shell, and a rotating shaft penetrates through the worm and is rotationally connected with the worm. According to the worm gear butterfly valve device with the adjusting mechanism, when the valve body is closed and the sleeve body is pushed, the rotating rod can exert acting force on the clamping plate at the moment, in the process, a clamping head on the clamping plate can be separated from a groove, when the clamping head is completely separated from the groove, clamping connection between the rotating shaft and the worm is relieved at the moment, then the sleeve body is rotated, the sleeve body is limited, and therefore the worm gear butterfly valve device is adjusted. By releasing the clamping between the worm and the rotating shaft, the rotating wheel can be prevented from opening the valve under the influence of external force.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a worm gear butterfly valve device with an adjusting mechanism. Background Art

[0002] The worm gear butterfly valve is a rotary valve whose core component is a butterfly valve, but the driving method is achieved through a worm gear drive. This valve is mainly composed of a valve body, a butterfly plate, a worm gear drive mechanism, and other parts.

[0003] At present, most of the existing manual worm gear butterfly valves lack a limit mechanism. If the staff accidentally touches the handwheel, it may cause the valve inside the valve body to rotate, making the valve body not completely closed, affecting its sealing effect. In view of this, we have a worm gear butterfly valve device with an adjusting mechanism. Utility Model Content

[0004] The main purpose of the utility model is to provide a worm gear butterfly valve device with an adjusting mechanism, which can solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a worm gear butterfly valve device with an adjustment mechanism, comprising a valve body, the outer wall of the valve body is fixedly connected to a shell, a valve is arranged inside the valve body, the valve penetrates the valve body and the shell and is rotatably connected to the valve body and the shell, a driven worm gear is fixedly connected to the top of the valve, the driven worm gear is meshed with a worm, the worm is rotatably connected to the shell, the worm is penetrated by a rotating shaft and is connected by a rotating shaft, and the rotating shaft is provided with:

[0006] A rotating wheel, wherein the rotating wheel is fixedly connected to the outer wall of the rotating shaft;

[0007] A sleeve body, wherein the sleeve body is sleeve-connected with the rotating shaft;

[0008] A rotating rod, the rotating rod passes through the rotating shaft and is sleeve-connected with the rotating shaft;

[0009] A card plate, the card plate is slidably connected to the inner wall of the rotating shaft, and the card plate is rotatably connected to the rotating rod;

[0010] A guide rod, which passes through the card plate and is slidably connected to the card plate, and is used to improve the stability of the card plate movement;

[0011] Spring 2, one end of which is fixedly connected to the outer wall of the card plate, and the other end of which is fixedly connected to the inner wall of the rotating rod. The deformation of the spring 2 generates elastic force, and when the pressure of the card plate disappears, the card plate can return to its original position;

[0012] and a sliding rod, wherein the sliding rod is fixedly connected to the outer wall of the card plate.

[0013] Preferably, the rotating shaft is provided with a notch, the notch is slidably connected to the rotating rod, and the rotating rod is fixedly connected to the inner wall of the sleeve.

[0014] Preferably, both ends of the guide rods are fixedly connected to the inner wall of the rotating rod, and a total of four groups of guide rods are provided and are all distributed on the inner wall of the rotating rod.

[0015] Preferably, the worm is provided with a limiting groove and a groove, the limiting groove is slidably connected with a clamping block, the outer wall of the clamping block is fixedly connected with one end of a spring 1, and the other end of the spring 1 is fixedly connected to the inner wall of the worm.

[0016] Preferably, a moving rod is provided inside the worm, and the moving rod is slidably connected to the inner wall of the worm.

[0017] Preferably, an elastic telescopic rod is fixedly connected to the inner wall of the shell, and a clamping slot is provided at the output end of the elastic telescopic rod.

[0018] The utility model provides a worm gear butterfly valve device with an adjustment mechanism, which has the following beneficial effects:

[0019] (1) The worm gear butterfly valve device with an adjustment mechanism, when the valve body is closed, pushes the sleeve body, and the rotating rod will exert a force on the clamping plate. During this process, the clamping head on the clamping plate will disengage from the groove. When the clamping head is completely disengaged from the groove, the clamping connection between the rotating shaft and the worm is released. Then, the sleeve body is rotated to limit the sleeve body. By releasing the clamping connection between the worm and the rotating shaft, the valve can be prevented from being opened by the rotor under the influence of external force.

[0020] (2) In the worm gear butterfly valve device with an adjustment mechanism, when the clamping plate moves, the sliding rod will squeeze the moving rod, causing the moving rod to move. During this process, the moving rod will squeeze the clamping block, causing the clamping block to be stuck in the clamping groove, thereby limiting the worm gear, thereby further improving the stability of the valve and preventing the valve from rotating under the action of external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the shell of the utility model;

[0024] Figure 3 It is a schematic diagram of a partial three-dimensional structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the worm of the utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional cross-sectional structure of the rotating shaft of the utility model;

[0027] Figure 6 It is a schematic diagram of the three-dimensional cross-sectional structure of the elastic telescopic rod of the utility model.

[0028] Description of Figure Numbers:

[0029] 1. Valve body; 2. Shell; 21. Elastic telescopic rod; 22. Slot; 3. Valve; 4. Driven worm gear; 5. Worm; 51. Limiting groove; 52. Block; 53. Spring 1; 54. Moving rod; 55. Groove; 6. Rotating shaft; 61. Rotating wheel; 62. Sleeve; 63. Notch; 64. Rotating rod; 65. Clamp; 66. Guide rod; 67. Spring 2; 68. Sliding rod.

[0030] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] 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.

[0032] See also Figure 1-Figure 6The utility model proposes a worm gear butterfly valve device with an adjustment mechanism, including a valve body 1, the outer wall of the valve body 1 is fixedly connected to a shell 2, a valve 3 is arranged inside the valve body 1, the valve 3 penetrates the valve body 1 and the shell 2 and is rotatably connected to the valve body 1 and the shell 2, a driven worm wheel 4 is fixedly connected to the top of the valve 3, a worm 5 is meshed with the driven worm wheel 4, the worm 5 is rotatably connected to the shell 2, the worm 5 is penetrated by a rotating shaft 6 and the rotating shaft 6 is connected by a clamping connection, a rotating wheel 61 is arranged on the rotating shaft 6, the rotating wheel 61 is fixedly connected to the outer wall of the rotating shaft 6, the rotating shaft 6 is provided with a notch 63, the shape of the notch 63 is L-shaped, the notch 63 is slidably connected to a rotating rod 64, the rotating rod 64 is fixedly connected to the inner wall of a sleeve 62, the sleeve 62, the sleeve 62 is sleeved with the rotating shaft 6 Connection, rotating rod 64, rotating rod 64 passes through the rotating shaft 6 and is sleeved with the rotating shaft 6, card plate 65, card plate 65 is slidably connected to the inner wall of the rotating shaft 6, card plate 65 is rotatably connected to the rotating rod 64, a card head is provided on the outer wall of the card plate 65, and the number and size of the card head match the groove 55, guide rod 66, guide rod 66 passes through the card plate 65 and is slidably connected to the card plate 65, both ends of the guide rod 66 are fixedly connected to the inner wall of the rotating rod 64, and the guide rod 66 is provided with four groups and is distributed on the inner wall of the rotating rod 64, spring 2 67, one end of the spring 2 67 is fixedly connected to the outer wall of the card plate 65, and the other end of the spring 2 67 is fixedly connected to the inner wall of the rotating rod 64, and sliding rod 68, sliding rod 68 is fixedly connected to the outer wall of the card plate 65;

[0033] like Figure 4 and Figure 5 As shown, when the sleeve 62 slides on the groove 63, the rotating rod 64 will apply a force to the clamping plate 65, causing the clamping plate 65 to move downward. During this process, the spring 67 undergoes elastic deformation, and the clamping head on the clamping plate 65 will disengage from the groove 55. When the clamping head is completely disengaged from the groove 55, the clamping connection between the rotating shaft 6 and the worm 5 is released. When the rotating rod 64 moves to the bottom of the groove 63, the sleeve 62 is rotated to limit the sleeve 62. By releasing the clamping connection between the worm 5 and the rotating shaft 6, the rotating wheel 61 can be prevented from driving the worm 5 to rotate under the influence of external force, thereby causing the valve 3 to be opened.

[0034] In the embodiment of the utility model, in order to limit the worm 5, the worm 5 is provided with a limiting groove 51 and a groove 55, the limiting groove 51 is slidably connected with a clamping block 52, the outer wall of the clamping block 52 is fixedly connected with one end of a spring 53, the other end of the spring 53 is fixedly connected with the inner wall of the worm 5, a moving rod 54 is provided inside the worm 5, the moving rod 54 is slidably connected with the inner wall of the worm 5, the inner wall of the housing 2 is fixedly connected with an elastic telescopic rod 21, and a clamping groove 22 is provided at the output end of the elastic telescopic rod 21;

[0035] During the rotation of the worm 5, the limiting groove 51 will squeeze the output end of the elastic telescopic rod 21, causing the output end of the elastic telescopic rod 21 to slide. When the limiting groove 51 overlaps with the output end of the elastic telescopic rod 21 again, the output end of the elastic telescopic rod 21 will be re-stuck into the limiting groove 51 under the action of the elastic force.

[0036] When the clamping plate 65 moves, the sliding rod 68 will squeeze the moving rod 54, causing the moving rod 54 to move. During this process, the moving rod 54 will squeeze the clamping block 52, causing the clamping block 52 to be clamped into the inside of the clamping groove 22, thereby limiting the worm 5, thereby further improving the stability of the valve 3 and preventing the valve 3 from rotating under the action of external force.

[0037] In the utility model, during use, when the rotating wheel 61 is rotated, the worm 5 drives the driven worm wheel 4 to rotate. By rotating the driven worm wheel 4, the opening and closing angle of the valve 3 can be adjusted. When the valve 3 is adjusted to a suitable angle, the sleeve 62 is pushed so that the clamping head on the clamping plate 65 disengages from the groove 55, thereby releasing the clamping connection between the worm 5 and the rotating shaft 6. Subsequently, the sleeve 62 can be limited by rotating the sleeve 62. When the clamping plate 65 moves, the sliding rod 68 squeezes the moving rod 54. During this process, the moving rod 54 squeezes the clamping block 52 so that the clamping block 52 is clamped into the inside of the clamping groove 22, thereby limiting the worm 5. This can further improve the stability of the valve 3 and prevent the valve 3 from angular displacement under the action of external force.

[0038] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A worm gear butterfly valve device with an adjustment mechanism, comprising a valve body (1), characterized in that: The outer wall of the valve body (1) is fixedly connected to a housing (2), a valve (3) is provided inside the valve body (1), the valve (3) penetrates the valve body (1) and the housing (2) and is rotatably connected to the valve body (1) and the housing (2), a driven worm gear (4) is fixedly connected to the top of the valve (3), the driven worm gear (4) is meshed with a worm (5), the worm (5) is rotatably connected to the housing (2), the worm (5) is penetrated by a rotating shaft (6) and is connected by a clamping connection to the rotating shaft (6), and the rotating shaft (6) is provided with: A rotating wheel (61), wherein the rotating wheel (61) is fixedly connected to the outer wall of the rotating shaft (6); A sleeve body (62), wherein the sleeve body (62) is sleeve-connected with the rotating shaft (6); A rotating rod (64), wherein the rotating rod (64) passes through the rotating shaft (6) and is sleeve-connected with the rotating shaft (6); A clamping plate (65), wherein the clamping plate (65) is slidably connected to the inner wall of the rotating shaft (6), and the clamping plate (65) is rotatably connected to the rotating rod (64); A guide rod (66), wherein the guide rod (66) passes through the clamping plate (65) and is slidably connected to the clamping plate (65); Spring 2 (67), one end of the spring 2 (67) is fixedly connected to the outer wall of the clamping plate (65), and the other end of the spring 2 (67) is fixedly connected to the inner wall of the rotating rod (64); and a sliding rod (68), wherein the sliding rod (68) is fixedly connected to the outer wall of the clamping plate (65).

2. A worm gear butterfly valve device with an adjustment mechanism according to claim 1, characterized in that: The rotating shaft (6) is provided with a notch (63), the notch (63) is slidably connected to a rotating rod (64), and the rotating rod (64) is fixedly connected to the inner wall of the sleeve body (62).

3. A worm gear butterfly valve device with an adjustment mechanism according to claim 1, characterized in that: Both ends of the guide rod (66) are fixedly connected to the inner wall of the rotating rod (64); a total of four groups of the guide rods (66) are provided and are all distributed on the inner wall of the rotating rod (64).

4. A worm gear butterfly valve device with an adjustment mechanism according to claim 1, characterized in that: The worm (5) is provided with a limiting groove (51) and a groove (55); the limiting groove (51) is slidably connected to a clamping block (52); the outer wall of the clamping block (52) is fixedly connected to one end of a spring (53); and the other end of the spring (53) is fixedly connected to the inner wall of the worm (5).

5. A worm gear butterfly valve device with an adjustment mechanism according to claim 1, characterized in that: A moving rod (54) is provided inside the worm (5), and the moving rod (54) is slidably connected to the inner wall of the worm (5).

6. A worm gear butterfly valve device with an adjustment mechanism according to claim 1, characterized in that: An elastic telescopic rod (21) is fixedly connected to the inner wall of the housing (2), and a clamping slot (22) is provided at the output end of the elastic telescopic rod (21).

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