Locking and sealing mistaken touch prevention ball valve

Abstract

A locking and sealing mistaken touch prevention ball valve comprises a valve body, a water inlet connector arranged on the left side of the valve body and a water outlet connector arranged on the right side of the valve body, a spherical opening and closing piece is arranged in the valve body, a valve rod is arranged at the upper end of the spherical opening and closing piece, the upper end of the valve rod upwards penetrates out of the valve body and is provided with a handle, and a driving gear is fixed to the portion, exposed out of the valve body, of the valve rod; a fixed seat is arranged on the upper surface of the water inlet joint; a lower seat plate matched with the fixed seat is arranged on the fixed seat; an upper seat plate is arranged right above the lower seat plate; a plurality of uniformly distributed supporting columns are arranged between the upper seat plate and the lower seat plate; an upper shaft hole is formed in the left part of the upper seat plate; a lower shaft hole coaxial with the upper shaft hole is formed in the left side of the upper surface of the lower base plate. According to the locking and sealing mistaken touch prevention ball valve, the handle can be locked when the ball valve is closed, the situation that the ball valve is accidentally opened due to the fact that the handle rotates when being mistakenly touched is effectively avoided, and the mistaken touch prevention effect is achieved.

Description

Technical Field

[0001] This utility model relates to a ball valve, and more particularly to a locking, sealing ball valve to prevent accidental contact. Background Technology

[0002] A ball valve is a type of valve that uses a spherical opening and closing element to control its opening and closing. The valve body has inlet and outlet connectors on its left and right sides, respectively. Inside the valve body is the spherical opening and closing element. When the ball valve is open, the opening and closing hole in the center of the spherical opening and closing element is coaxial with the inlet and outlet connectors. To close the ball valve, the valve stem is rotated via the valve handle, which in turn rotates the spherical opening and closing element 90 degrees. After this rotation, both ends of the opening and closing hole in the center of the spherical opening and closing element are sealed by the inner wall of the valve body. At this point, the inlet and outlet connectors cannot connect through the opening and closing hole in the center of the spherical opening and closing element, thus closing the ball valve. However, in actual use, there is a problem of accidental handle activation. If the handle is accidentally activated, the spherical opening and closing element will rotate simultaneously, opening the valve instead of allowing water to flow unexpectedly, posing a potential safety hazard. Summary of the Invention

[0003] The present invention aims to solve the existing technical problem by providing a locking and sealing anti-accidental contact ball valve, which can lock the handle when the ball valve is closed, effectively preventing the ball valve from being accidentally opened due to rotation caused by accidental contact of the handle, thus achieving the anti-accidental contact effect.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0005] This utility model discloses a locking, sealing, and anti-accidental-touch ball valve, comprising a valve body, an inlet connector on the left side of the valve body, and an outlet connector on the right side of the valve body. The valve body contains a spherical opening and closing element, with a valve stem at its upper end. The upper end of the valve stem extends upwards to the valve body and has a handle. A drive gear is fixed to the portion of the valve stem exposed outside the valve body. A fixed seat is provided on the upper surface of the outlet connector. A matching lower seat plate is provided on the fixed seat. An upper seat plate is located directly above the lower seat plate. Several evenly distributed support columns are provided between the upper and lower seat plates. An upper shaft hole is provided on the left side of the upper seat plate. A lower shaft hole, coaxial with the upper shaft hole, is provided on the left side of the upper surface of the lower seat plate. The upper and lower shaft holes are connected by a rotating shaft. The upper end of the rotating shaft extends upwards to the upper shaft hole and has a driven gear meshing with the drive gear. A locking mechanism is provided on the upper surface of the upper seat plate, which restricts the rotation of the driven gear.

[0006] The locking mechanism includes a threaded connector on the upper surface of the upper base plate; a locking hole coaxial with the threaded connector is provided on the right side of the driven gear; a matching guide tube is threaded onto the threaded connector; a matching pressing cover is provided over the guide tube; an outlet hole communicating with the internal space is provided at the center of the upper surface of the pressing cover; symmetrical pressing handles are provided on the left and right sides of the lower outer wall of the pressing cover; a matching locking rod is provided inside the guide tube; the upper end of the locking rod passes through the outlet hole into the locking hole; a push plate that fits against the upper inner wall of the pressing cover is provided on the upper outer wall of the locking rod; a spring fitted outside the locking rod is provided between the lower surface of the push plate and the upper end face of the guide tube; the length of the locking rod located in the locking hole is less than the distance between the lower end face of the locking rod and the upper end face of the threaded connector.

[0007] The upper end face of the locking rod has a guide cone surface that is narrower at the top and wider at the bottom.

[0008] A cushioning pad made of rubber is attached to the upper surface of the pressing cover.

[0009] A connecting rod is provided at the center of the upper end face of the valve stem, and a handle is provided at the upper end of the connecting rod; a limiting plane is provided on the left side wall of the connecting rod; a connecting hole matching the connecting rod is provided at the center of the drive gear, and an auxiliary plane that fits against the limiting plane is provided on the inner left side wall of the connecting hole; a first C-shaped locking groove is provided on the connecting rod; a first retaining spring matching the first retaining groove is provided in the first retaining groove; the outer edge of the first retaining spring protrudes out of the first retaining groove and fits against the upper surface of the drive gear; the lower surface of the drive gear fits against the upper end face of the valve stem.

[0010] The lower surface of the left end of the handle is provided with a recessed hole that matches the upper end of the connecting rod; the inner wall of the left side of the recessed hole is provided with a limiting plane that fits against the limiting plane; the handle and the upper end of the connecting rod are fixed together by a first screw.

[0011] Both the upper and lower shaft holes are equipped with bearings that fit around the rotating shaft; the rotating shaft is fitted with a lower annular gasket that fits against the lower surface of the upper seat plate; the rotating shaft is provided with a second annular locking groove; a second retaining spring that matches it is provided in the second locking groove; the outer edge of the second retaining spring protrudes out of the second locking groove and fits against the lower surface of the lower annular gasket.

[0012] The upper end of the support column is fixed to the upper seat plate by a second screw.

[0013] The lower base plate and the fixed base are fixed together by a number of evenly distributed third screws.

[0014] The driven gear has a mating hole at its center; the upper end face of the shaft has a mating part at its center; the inner wall of the left side of the mating hole has a positioning groove; the left side of the mating part has a positioning block that matches the positioning groove; the upper end face of the mating part has a screw hole at its center; the upper surface of the driven gear has an upper annular washer coaxial with the screw hole; the fourth screw passes downward through the inner hole of the upper annular washer and is screwed into the screw hole, and the lower surface of the head of the fourth screw is in contact with the upper surface of the upper annular washer.

[0015] The beneficial effects of this utility model are:

[0016] Compared with the prior art, the locking and sealing anti-accidental contact ball valve with the structure of this utility model can restrict the driven gear through the locking rod of the locking mechanism when the ball valve is closed, thereby restricting the rotation of the connecting rod through the driving gear and locking the connecting rod. The connecting rod is locked in the lower surface of the left end of the handle by the fit between the limiting plane of its left side wall and the limiting plane of the left inner wall of the recess. Therefore, when the connecting rod is locked, the handle is locked at the same time. Even if the handle is accidentally touched, the handle cannot drive the ball opening and closing part to rotate through the valve stem. The opening and closing holes at the center of the ball opening and closing part are always in a state of being blocked and sealed by the inner wall of the valve body, effectively preventing the ball valve from being accidentally opened and effectively achieving the anti-accidental contact effect. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the locking, sealing, and anti-accidental contact ball valve of this utility model;

[0018] Figure 2 yes Figure 1 An enlarged view of part A;

[0019] Figure 3 yes Figure 1 An enlarged view of part B;

[0020] Figure 4 yes Figure 1 Enlarged view of part C. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] Please see Figures 1 to 4This utility model provides a locking, sealing, and anti-accidental contact ball valve, including a valve body 1, an inlet connector 2 located on the left side of the valve body 1, and an outlet connector 3 located on the right side of the valve body 1. A ball-shaped opening and closing element 4 is provided inside the valve body 1. A valve stem 5 is provided at the upper end of the ball-shaped opening and closing element 4. The upper end of the valve stem 5 extends upwards to the outside of the valve body 1 and is provided with a handle 6. A drive gear 7 is fixed on the part of the valve stem 5 exposed outside the valve body 1. A fixing seat 8 is provided on the upper surface of the outlet connector 3. A matching lower seat plate 9 is provided on the fixing seat 8. An upper seat is located directly above the lower seat plate 9. Plate 10; a plurality of evenly distributed support columns 11 are provided between the upper plate 10 and the lower plate 9; an upper shaft hole 12 is provided on the left side of the upper plate 10; a lower shaft hole 13 coaxial with the upper shaft hole 12 is provided on the left side of the upper surface of the lower plate 9; the upper shaft hole 12 and the lower shaft hole 13 are connected by a rotating shaft 14; the upper end of the rotating shaft 14 extends upward to the outside of the upper shaft hole 12 and is provided with a driven gear 15 that meshes with the driving gear 7; a locking mechanism is provided on the upper surface of the upper plate 10; the locking mechanism can restrict the rotation of the driven gear 15.

[0023] The locking mechanism includes a threaded connector 16 on the upper surface of the upper base plate 10; a locking hole 17 coaxial with the threaded connector 16 is provided on the right side of the driven gear 15; a guide tube 18 matching the threaded connector 16 is threaded onto the threaded connector 16; a pressing cover 19 matching the guide tube 18 is covered by the guide tube 18; an outlet hole 20 communicating with the internal space is provided at the center of the upper surface of the pressing cover 19; pressing handles 21 are provided on the left and right sides of the lower outer wall of the pressing cover 19; the... The guide tube 18 is provided with a matching locking rod 22; the upper end of the locking rod 22 passes through the lead-out hole 20 into the locking hole 17; the upper outer wall of the locking rod 22 is provided with a push plate 23 that fits against the upper inner wall of the pressing cover 19; a spring 24 is provided between the lower surface of the push plate 23 and the upper end face of the guide tube 18 and is fitted outside the locking rod 22; the length of the locking rod 22 located in the locking hole 17 is less than the distance between the lower end face of the locking rod 22 and the upper end face of the screw connector 16.

[0024] The upper end face of the locking rod 22 is provided with an inlet cone surface 25 that is narrower at the top and wider at the bottom.

[0025] A cushioning pad 26 made of rubber is attached to the upper surface of the pressing cover 19.

[0026] A connecting rod 27 is provided at the center of the upper end face of the valve stem 5, and a handle 6 is provided at the upper end of the connecting rod 27; a limiting plane 28 is provided on the left side wall of the connecting rod 27; a connecting hole 29 matching the connecting rod 27 is provided at the center of the drive gear 7, and an auxiliary plane 30 that fits against the limiting plane 28 is provided on the left inner wall of the connecting hole 29; a C-shaped first locking groove 31 is provided on the connecting rod 27; a matching first retaining spring 32 is provided in the first locking groove 31; the outer edge of the first retaining spring 32 protrudes out of the first locking groove 31 and fits against the upper surface of the drive gear 7; the lower surface of the drive gear 7 fits against the upper end face of the valve stem 5.

[0027] The lower left surface of the handle 6 is provided with a recessed hole 33 that matches the upper end of the connecting rod 27; the inner left wall of the recessed hole 33 is provided with a restricted plane 34 that fits against the limiting plane 28; the handle and the upper end of the connecting rod 27 are fixed together by a first screw 35.

[0028] Both the upper shaft hole 12 and the lower shaft hole 13 are provided with bearings 36 that are sleeved on the rotating shaft 14; the rotating shaft 14 is sleeved with a lower annular gasket 37 that fits against the lower surface of the upper seat plate 10; the rotating shaft 14 is provided with a second annular locking groove 38; the second locking groove 38 is provided with a matching second retaining spring 39; the outer edge of the second retaining spring 39 protrudes out of the second locking groove 38 and fits against the lower surface of the lower annular gasket 37.

[0029] The upper end of the support column 11 is fixed to the upper seat plate 10 by the second screw 40.

[0030] The lower base plate 9 and the fixed base 8 are fixed together by a number of evenly distributed third screws 41.

[0031] The driven gear 15 has a mating hole 42 at its center; the upper end face of the rotating shaft 14 has a mating part 43 at its center; the inner wall of the left side of the mating hole 42 has a positioning groove 44; the left side of the mating part 43 has a positioning block 45 that matches the positioning groove 44; the upper end face of the mating part 43 has a screw hole 46 at its center; the upper surface of the driven gear 15 has an upper annular washer 47 that is coaxial with the screw hole 46; the fourth screw 48 passes downward through the inner hole of the upper annular washer 47 and is screwed into the screw hole 46, and the lower surface of the head of the fourth screw 48 is in contact with the upper surface of the upper annular washer 47.

[0032] The method of using this utility model is as follows:

[0033] When the ball-shaped opening and closing part 4 needs to be rotated by the handle 6, one hand can hold the handle 6 and the other hand can press on the pressing handle 21 at the lower end of the pressing cover 19. At this time, the pressing cover 19 is first pressed down by the pressing handle 21. When the pressing cover 19 moves down, the pressing cover 19 will push the push plate 23 down through its own upper inner wall, thereby realizing the synchronous downward movement of the locking rod 22. After the locking rod 22 moves down a certain distance, the upper end of the locking rod 22 will completely disengage from the lower end of the locking hole 17. Without the locking of the locking rod 22, the driven gear 15 can rotate freely around the rotating shaft 14.

[0034] When the driven gear 15 is no longer restricted by the locking rod 22, the driving gear 7, which meshes with the driven gear 15, can rotate freely. At this time, the connecting rod 27 can be rotated by the handle 6, thereby rotating the valve stem 5. When the valve stem 5 is rotated, the ball valve 4 rotates synchronously. After the ball valve 4 rotates, its opening and closing state changes. When the inlet connector 2 and the outlet connector 3 are connected through the opening and closing hole in the center of the ball valve 4, the ball valve is in the open state. To close the ball valve, the ball valve 4 can be rotated back to its original position by the handle 6. When the opening and closing hole in the center of the ball valve 4 is blocked and sealed by the inner wall of the valve body 1, the ball valve is in the closed state. When the ball valve 4 rotates back to its original position, the connecting rod 27 rotates back to its original position. When the connecting rod 27 rotates, the driving gear 7 rotates synchronously, and the driving gear 7 meshes with the driven gear 15. The driving gear 7 will drive the driven gear 15. 5. When the ball-type opening and closing part 4 completes its reset, the driven gear 15 also completes its reset. At this time, the locking hole 17 on the driven gear 15 is once again coaxial with the locking rod 22. Then, the hand pressing on the pressing handle 21 can be released. After the external force is lost, the push plate 23 will push the upper inner wall of the pressing cover 19 upward under the elastic force of the spring 24. At this moment, the locking rod 22 and the pressing cover 19 move upward synchronously, and the upper end of the locking rod 22 is directly inserted into the locking hole 17 through the lower end hole of the locking hole 17. When the upper end of the locking rod 22 is inserted into the locking hole 17, the driven gear 15 is restricted from rotating, thereby restricting the rotation of the driving gear 7. The driving gear 7 locks itself onto the connecting rod 27 by the fit between the auxiliary plane 30 on the inner wall of the connecting hole 29 and the limiting plane 28 of the connecting rod 27. When the driving gear 7 cannot rotate, the connecting rod 27 also cannot rotate, thus finally locking the handle 6.

[0035] In summary, this invention can restrict the driven gear 15 by the locking rod of the locking mechanism when the ball valve is closed, thereby restricting the rotation of the connecting rod 27 by the driving gear 7 and locking the connecting rod 27. The connecting rod 27 is locked in the lower left surface of the handle 6 by the fit between the limiting plane 28 on its left side wall and the limiting plane 34 on the left inner wall of the recessed hole 33. Therefore, when the connecting rod 27 is locked, the handle 6 is locked at the same time. Even if the handle 6 is accidentally touched, the handle 6 cannot drive the ball opening and closing member 4 to rotate through the valve stem 5. The opening and closing holes at the center of the ball opening and closing member 4 are always blocked and sealed by the inner wall of the valve body 1, effectively preventing the ball valve from being accidentally touched and thus effectively preventing accidental opening.

[0036] The upper end face of the locking rod 22 has an inlet cone 25 that is narrower at the top and wider at the bottom. The presence of the inlet cone 25 allows the upper end of the locking rod 22 to be quickly inserted into the locking hole 17 from the lower end opening of the locking hole 17.

[0037] A buffer pad 26 is attached to the upper surface of the press cover 19. The buffer pad 26 is made of rubber. The presence of the buffer pad 26 can effectively buffer the press cover 19 when it moves up and resets, thus preventing the upper surface of the press cover 19 from directly impacting the lower surface of the driven gear 15 and causing damage.

[0038] The connecting rod 27 is provided with a C-shaped first locking groove 31. A matching first retaining spring 32 is provided in the first locking groove 31. The outer edge of the first retaining spring 32 protrudes out of the first locking groove 31 and is in contact with the upper surface of the drive gear 7. The lower surface of the drive gear 7 is in contact with the upper end face of the valve stem 5. This fixing method facilitates the disassembly and assembly of the drive gear 7, thereby facilitating the replacement of the drive gear 7.

[0039] The handle 6 is fixed to the upper end of the connecting rod 27 by the first screw 35. This fixing method facilitates the disassembly and assembly of the handle 6 and the connecting rod 27, thereby facilitating the maintenance and replacement of the handle 6.

[0040] Both the upper shaft hole 12 and the lower shaft hole 13 are provided with bearings 36 that are sleeved on the outside of the rotating shaft 14. The presence of bearings 36 can ensure the smooth rotation of the rotating shaft 14, thereby ensuring the smooth rotation of the driven gear 15.

[0041] The rotating shaft 14 is fitted with a lower annular gasket 37 that fits against the lower surface of the upper seat plate 10. The rotating shaft 14 is provided with a second annular locking groove 38. A second retaining spring 39 that matches it is provided in the second locking groove 38. The outer edge of the second retaining spring 39 protrudes out of the second locking groove 38 and fits against the lower surface of the lower annular gasket 37. The presence of the second retaining spring 39 can ensure the stability of the rotating shaft 14.

[0042] The upper end of the support column 11 is fixed to the upper base plate 10 by the second screw 40. This fixing method facilitates the assembly and disassembly of the support column 11 and the upper base plate 10.

[0043] The lower base plate 9 and the fixed base 8 are fixed together by several evenly distributed third screws 41. This fixing method facilitates the disassembly and assembly of the lower base plate 9, thereby facilitating the disassembly and assembly of other components.

[0044] The driven gear 15 has a mating hole 42 at its center, and the upper end face of the rotating shaft 14 has a mating part 43 at its center. The inner wall of the left side of the mating hole 42 has a positioning groove 44, and the left side of the mating part 43 has a positioning block 45 that matches the positioning groove. The upper end face of the mating part 43 has a screw hole 46 at its center. The upper surface of the driven gear 15 has an upper annular washer 47 that is coaxial with the screw hole 46. The fourth screw 48 passes downward through the inner hole of the upper annular washer 47 and is screwed into the screw hole 46. The lower surface of the head of the fourth screw 48 is in contact with the upper surface of the upper annular washer 47. This fixing method facilitates the disassembly and assembly of the driven gear 15 and the rotating shaft 14, thereby facilitating the replacement of the driven gear 15.

Claims

1. A locking, sealing, anti-accidental contact ball valve, comprising a valve body, an inlet connector located on the left side of the valve body, and an outlet connector located on the right side of the valve body, wherein a ball-shaped opening and closing element is provided inside the valve body, a valve stem is provided at the upper end of the ball-shaped opening and closing element, and the upper end of the valve stem extends upward to the valve body and is provided with a handle, characterized in that: A drive gear is fixed to the part of the valve stem exposed outside the valve body; a fixed seat is provided on the upper surface of the water outlet connector; a matching lower seat plate is provided on the fixed seat; an upper seat plate is located directly above the lower seat plate; several evenly distributed support columns are provided between the upper and lower seat plates; an upper shaft hole is provided on the left side of the upper seat plate; a lower shaft hole coaxial with the upper shaft hole is provided on the left side of the upper surface of the lower seat plate; the upper shaft hole and the lower shaft hole are connected by a rotating shaft; the upper end of the rotating shaft extends upward to the upper shaft hole and is provided with a driven gear that meshes with the drive gear; a locking mechanism is provided on the upper surface of the upper seat plate; the locking mechanism can restrict the rotation of the driven gear.

2. The locking, sealing, and anti-accidental contact ball valve according to claim 1, characterized in that: The locking mechanism includes a threaded connector on the upper surface of the upper base plate; a locking hole coaxial with the threaded connector is provided on the right side of the driven gear; a matching guide tube is threaded onto the threaded connector; a matching pressing cover is provided over the guide tube; an outlet hole communicating with the internal space is provided at the center of the upper surface of the pressing cover; symmetrical pressing handles are provided on the left and right sides of the lower outer wall of the pressing cover; a matching locking rod is provided inside the guide tube; the upper end of the locking rod passes through the outlet hole into the locking hole; a push plate that fits against the upper inner wall of the pressing cover is provided on the upper outer wall of the locking rod; a spring fitted outside the locking rod is provided between the lower surface of the push plate and the upper end face of the guide tube; the length of the locking rod located in the locking hole is less than the distance between the lower end face of the locking rod and the upper end face of the threaded connector.

3. A locking, sealing, anti-accidental contact ball valve according to claim 2, characterized in that: The upper end face of the locking rod has a guide cone surface that is narrower at the top and wider at the bottom.

4. A locking, sealing, anti-accidental contact ball valve according to claim 2, characterized in that: A cushioning pad made of rubber is attached to the upper surface of the pressing cover.

5. A locking, sealing, anti-accidental contact ball valve according to claim 1, characterized in that: A connecting rod is provided at the center of the upper end face of the valve stem, and a handle is provided at the upper end of the connecting rod; a limiting plane is provided on the left side wall of the connecting rod; a connecting hole matching the connecting rod is provided at the center of the drive gear, and an auxiliary plane that fits against the limiting plane is provided on the inner left side wall of the connecting hole; a first C-shaped locking groove is provided on the connecting rod; a first retaining spring matching the first retaining groove is provided in the first retaining groove; the outer edge of the first retaining spring protrudes out of the first retaining groove and fits against the upper surface of the drive gear; the lower surface of the drive gear fits against the upper end face of the valve stem.

6. A locking, sealing, anti-accidental contact ball valve according to claim 5, characterized in that: The lower surface of the left end of the handle is provided with a recessed hole that matches the upper end of the connecting rod; the inner wall of the left side of the recessed hole is provided with a limiting plane that fits against the limiting plane; the handle and the upper end of the connecting rod are fixed together by a first screw.

7. A locking, sealing, anti-accidental contact ball valve according to claim 1, characterized in that: Both the upper and lower shaft holes are equipped with bearings that fit around the rotating shaft; the rotating shaft is fitted with a lower annular gasket that fits against the lower surface of the upper seat plate; the rotating shaft is provided with a second annular locking groove; a second retaining spring that matches it is provided in the second locking groove; the outer edge of the second retaining spring protrudes out of the second locking groove and fits against the lower surface of the lower annular gasket.

8. A locking, sealing, anti-accidental contact ball valve according to claim 1, characterized in that: The upper end of the support column is fixed to the upper seat plate by a second screw.

9. A locking, sealing, anti-accidental contact ball valve according to claim 1, characterized in that: The lower base plate and the fixed base are fixed together by a number of evenly distributed third screws.

10. A locking, sealing, anti-accidental contact ball valve according to claim 1, characterized in that: The driven gear has a mating hole at its center; the upper end face of the shaft has a mating part at its center; the inner wall of the left side of the mating hole has a positioning groove; the left side of the mating part has a positioning block that matches the positioning groove; the upper end face of the mating part has a screw hole at its center; the upper surface of the driven gear has an upper annular washer coaxial with the screw hole; the fourth screw passes downward through the inner hole of the upper annular washer and is screwed into the screw hole, and the lower surface of the head of the fourth screw is in contact with the upper surface of the upper annular washer.

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