Valve capable of preventing accidental touch

Abstract

The utility model relates to the technical field of valves, and discloses an anti-accidental-touch valve which comprises a valve body, a valve plate installed on the inner side of the valve body, a valve rod fixedly connected to the inner side of the valve plate, a hand wheel arranged on the top of the valve body and a separating mechanism arranged on the top of the valve body and used for preventing the hand wheel from rotating. And a fixing mechanism for locking the hand wheel is arranged at the top of the valve. When the valve is used, a user can press the hand wheel, the hand wheel moves, the spline shaft moves, the spline shaft moves to be inserted into the spline groove, then the hand wheel can be rotated to open and close the valve, the crank is rotated after the hand wheel is loosened, the crank rotates to drive the supporting plate and the inserting rod to move through the two-way screw, and the inserting rod moves to be inserted into the inserting groove. At the moment, the position of the hand wheel is fixed, the hand wheel can be fixed, the problem that the valve is opened and closed due to mistaken touch is avoided, the influence of mistaken touch on the valve is further avoided through arrangement of a spline groove and a spline shaft, and then the use safety of the valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, and in particular to a valve that prevents accidental contact. Background Art

[0002] Valves are control components in fluid delivery systems, with functions such as diversion, interception, regulation, throttling, backflow prevention, diversion or overflow pressure relief. They can be used to control various types of fluid activities such as air, water, steam, various corrosive chemical media, mud, liquid metal and radioactive substances.

[0003] Existing control valves often do not have an anti-accidental touch mechanism. During use, erroneous operation may occur due to accidental touch, affecting the normal operation of the control valve. Utility Model Content

[0004] The utility model aims to provide a valve that prevents accidental touch, so as to solve the problem that the existing control valves often have no accidental touch prevention mechanism, and erroneous operation may occur during use due to accidental touch, thus affecting the normal operation of the control valve.

[0005] The utility model provides the following technical solutions: a valve that prevents accidental collision, comprising a valve, a valve plate installed on the inner side of the valve, a valve stem fixedly connected to the inner side of the valve plate, a hand wheel arranged on the top of the valve, a separation mechanism for preventing the hand wheel from rotating arranged on the top of the valve, and a fixing mechanism for locking the hand wheel arranged on the top of the valve.

[0006] As a preferred embodiment of the above technical solution, the valve plate is distributed on the inner side of the valve, and the diameter of the valve plate is matched with the inner diameter of the valve. A sealing setting is adopted at the connection between the valve stem and the valve, and two connecting flanges are fixedly connected to the outer side of the valve.

[0007] As a preferred embodiment of the above technical solution, the separation mechanism includes a spline groove opened on the top of the valve stem and a fixed cylinder fixedly connected to the top of the valve, two limit rods are fixedly connected to the inner side of the fixed cylinder, a slide is slidably connected to the outer side of the limit rod, a bearing seat is installed on the inner side of the slide, a rotating shaft is fixedly connected to the inner side of the bearing seat, a spline shaft is fixedly connected to the bottom of the rotating shaft, a handwheel is fixedly connected to the top of the rotating shaft, and a spring is fixedly connected to the bottom of the slide. When in use, the user can press the handwheel, the movement of the handwheel drives the rotating shaft to move, and the movement of the rotating shaft drives the slide to move through the limit rods and squeezes The spring is compressed, and the movement of the skateboard drives the bearing seat and the spline shaft to move. When the spline shaft moves to a certain position, it will be inserted into the spline groove on the top of the valve stem. Then the user can turn the handwheel. The rotation of the handwheel drives the rotation of the rotating shaft, and the rotation of the rotating shaft drives the rotation of the spline shaft. The rotation of the spline shaft drives the spline groove and the valve stem to rotate, thereby realizing the rotation of the valve plate and then realizing the opening and closing of the valve. When it is not needed, the user releases the handwheel, and the skateboard will return to its original position under the influence of the spring. At this time, the spline shaft will be separated from the spline groove on the top of the valve stem, thereby avoiding the problem of accidental touch affecting the valve.

[0008] As a preferred embodiment of the above technical solution, one end of the valve stem away from the valve plate is distributed on the inner side of the fixed cylinder, both ends of the two limit rods are fixedly connected to the inner side of the fixed cylinder, the two limit rods are slidably connected to the slide plate, the rotating shaft passes through the fixed cylinder and is fixedly connected to the handwheel, the position of the spline shaft corresponds to the spline groove, and the size of the spline shaft is adapted to the spline groove, one end of the two springs is fixedly connected to the bottom of the slide plate, and the other ends of the two springs are fixedly connected to the inner bottom of the fixed cylinder, and the two springs are respectively distributed on the outer sides of the two limit rods.

[0009] As a preferred embodiment of the above technical solution, the fixing mechanism includes a top plate fixedly connected to the top of the fixing cylinder and a plurality of slots opened on the outside of the handwheel, the top of the top plate is opened with two grooves, the inner sides of the grooves are rotatably connected with a two-way screw, the outer sides of the two-way screws are threadedly connected with a plurality of sliders, the top of the slider is fixedly connected with a support plate, the inner side of the support plate is fixedly connected with an insertion rod, the bottom of the support plate is slidably connected with the support rod, and the outer end of the two-way screw is fixedly connected with a crank. When in use, the user can open and close the valve through the rotating shaft, spline shaft and spline groove in the separation mechanism, and then release the handwheel, and then turn the crank. The rotation of the crank drives the two-way screw to rotate, and the rotation of the two-way screw drives the support plate to move through the support rod through the slider, and the movement of the support plate drives the insertion rod to move. When the insertion rod moves to a certain position, it will be inserted into the slot on the outside of the handwheel. At this time, the position of the handwheel is fixed, thereby realizing the fixation of the handwheel, further avoiding the problem of accidental touch of the handwheel affecting the operation of the valve.

[0010] As a preferred embodiment of the above technical solution, each slot is opened on the outside of the hand wheel, and the inner diameter of each slot is matched with the outer diameter of the insertion rod, and each slot is distributed at equal angles.

[0011] As a preferred embodiment of the above technical solution, one end of the bidirectional screw is rotatably connected to the inner side of the groove through a bearing, and the other end of the bidirectional screw passes through the top plate and is fixedly connected to the crank. There are two groups of sliders, and each group has two. One of the two groups of sliders is threadedly connected to the outer side of the bidirectional screw, and the other group of sliders is slidably connected to the support rod. There are two support plates, which are fixedly connected to the two groups of sliders respectively, and the two support plates are slidably connected to the support rod through the two groups of sliders. The inner sides of the two support plates are fixedly connected with plug rods, and the positions of the two plug rods correspond to each other.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model is provided with a valve, a valve plate, a valve stem, a hand wheel, a separating mechanism and a fixing mechanism. When in use, the user can press the hand wheel, and the movement of the hand wheel drives the movement of the rotating shaft, and the movement of the rotating shaft drives the slide plate to move through the limit rod and squeeze the spring, and the movement of the slide plate drives the movement of the bearing and the spline shaft, and the spline shaft moves to a certain position and is inserted into the spline groove at the top of the valve stem, and then the user can turn the hand wheel, and the rotation of the hand wheel drives the rotation of the rotating shaft, and the rotation of the rotating shaft drives the rotation of the spline shaft, and the rotation of the spline shaft drives the rotation of the spline groove and the valve stem, so as to realize the rotation of the valve plate and then realize the opening and closing of the valve. When it is not needed, the user releases the hand wheel. Open the handwheel, and the slide plate will return to its original position under the influence of the spring. At this time, the spline shaft will separate from the spline groove on the top of the valve stem. Then the user can turn the crank handle. The rotation of the crank handle drives the two-way screw to rotate. The rotation of the two-way screw drives the support plate through the slider to move through the support rod. The movement of the support plate drives the insertion rod to move. When the insertion rod moves to a certain position, it will be inserted into the slot on the outside of the handwheel. At this time, the position of the handwheel is fixed, so that the handwheel can be fixed, thereby avoiding the problem of accidental touch causing the valve to open and close. In addition, through the setting of the spline groove and the spline shaft, the influence of accidental touch on the valve can be further avoided, thereby improving the safety of valve use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a valve for preventing accidental contact from being viewed from the first perspective;

[0015] Figure 2 It is a first side cross-sectional schematic diagram of a valve for preventing accidental contact;

[0016] Figure 3 A second side cross-sectional schematic diagram of a valve for preventing accidental contact;

[0017] Figure 4 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0018] Figure 5 for Figure 2 A magnified schematic diagram of the structure at B in the middle;

[0019] Figure 6 for Figure 2 Enlarged schematic diagram of the structure at point C in the middle.

[0020] In the figure: 1. valve; 2. valve plate; 3. valve stem; 4. hand wheel; 31. spline groove; 32. fixing cylinder; 33. limit rod; 34. slide plate; 35. bearing seat; 36. rotating shaft; 37. spline shaft; 38. spring; 41. top plate; 42. slot; 43. groove; 44. bidirectional screw; 45. slider; 46. support plate; 47. plug rod; 48. support rod; 49. crank. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] Embodiment 1

[0023] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a valve for preventing accidental collision, comprising a valve 1, a valve plate 2 is installed on the inner side of the valve 1, a valve stem 3 is fixedly connected to the inner side of the valve plate 2, a hand wheel 4 is arranged on the top of the valve 1, a separation mechanism for preventing the hand wheel 4 from rotating is arranged on the top of the valve 1, a fixing mechanism for locking the hand wheel 4 is arranged on the top of the valve 1, the valve plate 2 is distributed on the inner side of the valve 1, and the diameter of the valve plate 2 is matched with the inner diameter of the valve 1, a sealing arrangement is adopted at the connection between the valve stem 3 and the valve 1, two connecting flanges are fixedly connected to the outer side of the valve 1, the separation mechanism comprises a spline groove 31 provided on the top of the valve stem 3 and a fixing cylinder 32 fixedly connected to the top of the valve 1, two limiting rods 33 are fixedly connected to the inner side of the fixing cylinder 32, a slide plate 34 is slidably connected to the outer side of the limiting rod 33, and the inner side of the slide plate 34 A bearing seat 35 is installed, and a rotating shaft 36 is fixedly connected to the inner side of the bearing seat 35, and a spline shaft 37 is fixedly connected to the bottom of the rotating shaft 36. The handwheel 4 is fixedly connected to the top of the rotating shaft 36, and a spring 38 is fixedly connected to the bottom of the slide plate 34. The end of the valve stem 3 away from the valve plate 2 is distributed on the inner side of the fixed cylinder 32, and both ends of the two limit rods 33 are fixedly connected to the inner side of the fixed cylinder 32. The two limit rods 33 are slidably connected to the slide plate 34. The rotating shaft 36 passes through the fixed cylinder 32 and is fixedly connected to the handwheel 4. The position of the spline shaft 37 corresponds to the spline groove 31, and the size of the spline shaft 37 is adapted to the spline groove 31. One end of the two springs 38 is fixedly connected to the bottom of the slide plate 34, and the other ends of the two springs 38 are fixedly connected to the inner bottom of the fixed cylinder 32. The two springs 38 are respectively distributed on the outer sides of the two limit rods 33.

[0024] Through the above technical solution, when in use, the user can press the handwheel 4, the movement of the handwheel 4 drives the rotating shaft 36 to move, the movement of the rotating shaft 36 drives the slide plate 34 to move through the limit rod 33, and squeezes the spring 38, the movement of the slide plate 34 drives the bearing seat 35 and the spline shaft 37 to move, the spline shaft 37 moves to a certain position and is inserted into the spline groove 31 at the top of the valve stem 3, and then the user can turn the handwheel 4, the rotation of the handwheel 4 drives the rotating shaft 36 to rotate, the rotation of the rotating shaft 36 drives the spline shaft 37 to rotate, the rotation of the spline shaft 37 drives the spline groove 31 and the valve stem 3 to rotate, thereby realizing the rotation of the valve plate 2, and then realizing the opening and closing of the valve 1, when it is not needed, the user releases the handwheel 4, at this time the slide plate 34 will return to its original position under the influence of the spring 38, at this time the spline shaft 37 will be separated from the spline groove 31 at the top of the valve stem 3, thereby avoiding the problem of accidental touch affecting the valve 1.

[0025] Embodiment 2

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the utility model provides a technical solution: a valve to prevent accidental collision, comprising a valve 1, a valve plate 2 is installed on the inner side of the valve 1, a valve stem 3 is fixedly connected to the inner side of the valve plate 2, a hand wheel 4 is arranged on the top of the valve 1, a separation mechanism for preventing the hand wheel 4 from rotating is arranged on the top of the valve 1, a fixing mechanism for locking the hand wheel 4 is arranged on the top of the valve 1, the fixing mechanism comprises a top plate 41 fixedly connected to the top of the fixing cylinder 32 and a plurality of slots 42 arranged on the outer side of the hand wheel 4, two grooves 43 are arranged on the top of the top plate 41, a bidirectional screw 44 is rotatably connected to the inner side of the groove 43, a plurality of sliders 45 are threadedly connected to the outer side of the bidirectional screw 44, a support plate 46 is fixedly connected to the top of the slider 45, a plug rod 47 is fixedly connected to the inner side of the support plate 46, a support rod 48 is slidably connected to the bottom of the support plate 46, and a bidirectional screw 44 is threadedly connected to the outer side of the bidirectional screw 44. The outer end of the screw 44 is fixedly connected to a crank 49, each slot 42 is opened on the outer side of the handwheel 4, and the inner diameter of each slot 42 is matched with the outer diameter of the insertion rod 47, and each slot 42 is distributed at equal angles. One end of the bidirectional screw 44 is rotatably connected to the inner side of the groove 43 through a bearing, and the other end of the bidirectional screw 44 passes through the top plate 41 and is fixedly connected to the crank 49. There are two groups of sliders 45, and each group has two. One group of the two groups of sliders 45 is threadedly connected to the outer side of the bidirectional screw 44, and the other group of sliders 45 is slidably connected to the support rod 48. There are two support plates 46, and the two support plates 46 are fixedly connected to the two groups of sliders 45 respectively, and the two support plates 46 are slidably connected to the support rod 48 through the two groups of sliders 45. The inner sides of the two support plates 46 are fixedly connected with the insertion rod 47, and the positions of the two insertion rods 47 correspond to each other.

[0027] Through the above technical solution, when in use, the user can open and close the valve 1 through the rotating shaft 36, spline shaft 37 and spline groove 31 in the separation mechanism, and then loosen the handwheel 4, and then turn the crank 49. The rotation of the crank 49 drives the bidirectional screw 44 to rotate. The rotation of the bidirectional screw 44 drives the support plate 46 to move through the support rod 48 through the slider 45. The movement of the support plate 46 drives the insertion rod 47 to move. When the insertion rod 47 moves to a certain position, it will be inserted into the slot 42 on the outside of the handwheel 4. At this time, the position of the handwheel 4 is fixed, thereby achieving the fixation of the handwheel 4, further avoiding the problem of accidental touch of the handwheel 4 affecting the operation of the valve 1.

[0028] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A valve for preventing accidental contact, comprising a valve (1), a valve plate (2) being installed on the inner side of the valve (1), a valve stem (3) being fixedly connected to the inner side of the valve plate (2), characterized in that: A hand wheel (4) is arranged at the top of the valve (1), a separation mechanism for preventing the hand wheel (4) from rotating is arranged at the top of the valve (1), and a fixing mechanism for locking the hand wheel (4) is arranged at the top of the valve (1).

2. The anti-accidental-touch valve according to claim 1, characterized in that: The valve plate (2) is distributed on the inner side of the valve (1), and the diameter of the valve plate (2) is matched with the inner diameter of the valve (1). A sealing arrangement is adopted at the connection between the valve stem (3) and the valve (1), and two connecting flanges are fixedly connected to the outer side of the valve (1).

3. The anti-accidental-touch valve according to claim 1, characterized in that: The separation mechanism comprises a spline groove (31) provided at the top of the valve stem (3) and a fixed cylinder (32) fixedly connected to the top of the valve (1); two limit rods (33) are fixedly connected to the inner side of the fixed cylinder (32); a slide plate (34) is slidably connected to the outer side of the limit rod (33); a bearing seat (35) is installed on the inner side of the slide plate (34); a rotating shaft (36) is fixedly connected to the inner side of the bearing seat (35); a spline shaft (37) is fixedly connected to the bottom of the rotating shaft (36); the hand wheel (4) is fixedly connected to the top of the rotating shaft (36); and a spring (38) is fixedly connected to the bottom of the slide plate (34).

4. The anti-accidental-touch valve according to claim 3, characterized in that: One end of the valve stem (3) away from the valve plate (2) is distributed on the inner side of the fixed cylinder (32), both ends of the two limit rods (33) are fixedly connected to the inner side of the fixed cylinder (32), the two limit rods (33) are slidably connected to the slide plate (34), the rotating shaft (36) passes through the fixed cylinder (32) and is fixedly connected to the hand wheel (4), the position of the spline shaft (37) corresponds to the spline groove (31), and the size of the spline shaft (37) is adapted to the spline groove (31), one end of the two springs (38) is fixedly connected to the bottom of the slide plate (34), and the other ends of the two springs (38) are fixedly connected to the inner bottom of the fixed cylinder (32), and the two springs (38) are respectively distributed on the outer sides of the two limit rods (33).

5. The anti-accidental-touch valve according to claim 3, characterized in that: The fixing mechanism comprises a top plate (41) fixedly connected to the top of the fixing cylinder (32) and a plurality of slots (42) provided on the outside of the hand wheel (4); two grooves (43) are provided on the top of the top plate (41); a bidirectional screw (44) is rotatably connected to the inner side of the groove (43); a plurality of sliders (45) are threadedly connected to the outer side of the bidirectional screw (44); a support plate (46) is fixedly connected to the top of the slider (45); an insert rod (47) is fixedly connected to the inner side of the support plate (46); a support rod (48) is slidably connected to the bottom of the support plate (46); and a crank (49) is fixedly connected to the outer end of the bidirectional screw (44).

6. The anti-accidental-touch valve according to claim 5, characterized in that: Each of the slots (42) is arranged on the outside of the hand wheel (4), and the inner diameter of each slot (42) is matched with the outer diameter of the insertion rod (47), and each of the slots (42) is distributed at equal angles.

7. The anti-accidental-touch valve according to claim 5, characterized in that: One end of the bidirectional screw (44) is rotatably connected to the inner side of the groove (43) through a bearing, and the other end of the bidirectional screw (44) passes through the top plate (41) and is fixedly connected to the crank (49). There are two groups of sliders (45), and each group has two sliders. One of the two groups of sliders (45) is threadedly connected to the outer side of the bidirectional screw (44), and the other group of sliders (45) is slidably connected to the support rod (48). There are two support plates (46), and the two support plates (46) are fixedly connected to the two groups of sliders (45) respectively, and the two support plates (46) are slidably connected to the support rod (48) through the two groups of sliders (45). The inner sides of the two support plates (46) are fixedly connected with an insertion rod (47), and the positions of the two insertion rods (47) correspond to each other.

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