Magnetic locking ball valve

Abstract

The application provides a magnetic locking ball valve and belongs to the technical field of valves. The magnetic locking ball valve solves the problem of insufficient applicability. The magnetic locking ball valve comprises a valve body, a control rod and an unlocking key. The control rod is provided with an elastic locking part with magnetism on the side. The valve body is provided with a full opening positioning groove, a full closing positioning groove and a slight opening positioning groove in the circumferential direction. The valve body is further provided with a limiting part one corresponding to the full closing position and a limiting part two corresponding to the slight opening position. The control rod is provided with a limiting pin between the limiting part one and the limiting part two in the circumferential direction. The full opening positioning groove is between the slight opening positioning groove and the full closing positioning groove in the circumferential direction. The arc from the full closing positioning groove to the full opening positioning groove is slightly larger than the arc from the full opening positioning groove to the slight opening positioning groove. The unlocking key is provided with an elastic action part. The elastic action part partially extends out of the unlocking key and the part of the elastic action part is in the shape of a spherical cap. The valve body is provided with a matching hole corresponding to the full opening position. The elastic action part can be embedded in the matching hole. The magnetic locking ball valve has the advantages of wide applicability.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of valves, and relates to a magnetic locking ball valve. BACKGROUND

[0002] The magnetic locking valve is a valve with a locking function, which is widely applied to the opening control of cold and hot water and heating pipelines, can prevent the valve from being arbitrarily opened and closed, and is an ideal product for intelligent management of modern residential communities. For example, the magnetic locking valve disclosed in patent application No. 201820534982.6 comprises a valve body with an internal cavity, the left and right ends of the valve body are a water inlet end and a water outlet end respectively, a ball core capable of controlling the communication or isolation of the water inlet end and the water outlet end is arranged in the valve body, a protruding positioning portion is arranged on the upper part of the valve body, the positioning portion is hollow, a control rod is arranged in the positioning portion, the control rod is axially limited in the positioning portion, the lower end of the control rod is connected with the ball core, the upper end of the control rod extends out of the positioning portion, a positioning groove one and a positioning groove two are arranged on the inner wall of the upper end of the positioning portion along the axial direction of the control rod, and the positioning groove one and the positioning groove two are distributed along the inner circumferential surface of the positioning portion, a positioning hole is arranged on the side of the control rod, a spring and a locking magnetic column are arranged in the positioning hole, and the outer end of the locking magnetic column is inserted into the positioning groove one under the elastic force of the spring when the magnetic locking valve is closed. The magnetic locking ball valve further comprises an unlocking handle, the unlocking handle comprises a block-shaped body and an operating handle arranged on the upper end side of the body, the lower end of the body is provided with a recess, the body can be sleeved on the upper end of the control rod and fixed with the control rod in the circumferential direction, an assembly hole is arranged on the side wall of the recess, and an unlocking magnetic column with the same magnetic property as the locking magnetic column is fixed in the assembly hole. When the unlocking handle is sleeved on the control rod, repulsion is generated between the unlocking magnetic column and the locking magnetic column to push the locking magnetic column into the positioning hole. When the user is in arrears, the management personnel rotates the control rod to the closed state of the valve, the locking magnetic column arranged in the control rod locks the control rod and the valve body when the valve is closed, so that the user cannot use water; after the user pays the fee, the management personnel sleeves the unlocking handle on the upper end of the control rod, the repulsion between the unlocking magnetic column and the locking magnetic column makes the locking magnetic column automatically retract into the positioning hole to be unlocked, and then the control rod is rotated to the open state of the valve.

[0003] The existing magnetic locking valve only has the function of locking in the completely closed state, and cannot be locked in the slightly open state, so there is a problem of insufficient applicability. SUMMARY

[0004] The purpose of the present application is to solve the above-mentioned problems existing in the prior art, and a magnetic locking ball valve is provided to solve the problem of insufficient applicability.

[0005] The purpose of the present application can be realized by the following technical solutions:

[0006] The magnetic locking ball valve comprises a valve body, a ball core and a control rod which are arranged in the valve body, and an unlocking key which can be sleeved on the valve body and is circumferentially fixed with the control rod. The control rod is provided with elastic locking members with magnetism on the side thereof. The valve body is provided with a full opening positioning groove and a full closing positioning groove which are circumferentially arranged and are used for inserting the elastic locking members under the elastic force of the elastic locking members. The valve body is further provided with a limiting part one corresponding to the full closing position. The control rod is provided with a limiting pin. The valve body is further provided with a micro opening positioning groove. The full opening positioning groove is circumferentially located between the micro opening positioning groove and the full closing positioning groove. The arc of the full closing positioning groove to the full opening positioning groove in the same rotating direction is slightly larger than the arc of the full opening positioning groove to the micro opening positioning groove. The valve body is further provided with a limiting part two corresponding to the micro opening position. The limiting pin is circumferentially located between the limiting part one and the limiting part two. The unlocking key is provided with an elastic acting member. The elastic acting member partially extends out of the unlocking key and the part of the elastic acting member extending out of the unlocking key is in the shape of a spherical cap. The valve body is provided with a matching hole corresponding to the full opening position. The elastic acting member can be embedded in the matching hole in the rotation of the unlocking key.

[0007] For the convenience of understanding, the full opening positioning groove is taken as the starting point. The clockwise rotation direction of the full opening positioning groove towards the micro opening positioning groove and the counterclockwise rotation direction of the full opening positioning groove towards the full closing positioning groove are taken as examples for description. In the normal state, the elastic locking members are inserted into the full opening positioning groove. The control rod and the valve body are circumferentially fixed together so that the magnetic locking ball valve is locked in the full opening state (the full opening means the maximum flow). When the user is in arrears, the management personnel sleeves the unlocking key on the valve body so that the elastic locking members are out of the full opening positioning groove and the control rod is unlocked. Then, the unlocking key is rotated along the clockwise direction with the control rod until the limiting pin abuts against the limiting part two. At this time, the elastic locking members are located opposite to the micro opening positioning groove. The unlocking key is removed. Thus, the elastic locking members are inserted into the micro opening positioning groove under the elastic force of the elastic locking members so that the magnetic locking ball valve is locked in the micro opening state. Thus, the user can be provided with a small amount of water to maintain the basic drinking water. Of course, when the unlocking key is sleeved on the valve body in the full opening state of the magnetic locking ball valve, the elastic acting member arranged on the unlocking key is embedded in the matching hole. However, since the part of the elastic acting member extending out of the unlocking key is in the shape of a spherical cap, the elastic acting member is moved along the hole of the matching hole and is retracted into the unlocking key after the management personnel applies the torsion to the unlocking key.

[0008] After the user normally pays the fee, the manager re-suits the unlocking key on the valve body to unlock, then drives the control rod to rotate counterclockwise through the unlocking key, and when the unlocking key is embedded into the cooperation hole at the outer end of the elastic locking part, a click sound will occur and the manager will feel the damping effect of the operation, at this time the manager knows that the elastic locking part is in the position opposite to the full open positioning groove, and the unlocking key is removed, so that the elastic locking part is inserted into the full open positioning groove to lock the magnetic locking ball valve in the full open state. When the pipeline needs to be repaired, the manager again suits the unlocking key on the valve body to unlock the control rod, and then drives the control rod to rotate counterclockwise through the unlocking key until the limiting pin abuts against the limiting part, and the elastic locking part is in the position opposite to the full close positioning groove, and the unlocking key is removed, so that the elastic locking part is inserted into the full close positioning groove to lock the magnetic locking ball valve in the full close state.

[0009] On the basis of being provided with the full open positioning groove and the full close positioning groove, the magnetic locking ball valve is further provided with a micro open positioning groove, and the full open positioning groove is located between the micro open positioning groove and the full close positioning groove in the circumferential direction, and the arc from the full close positioning groove to the full open positioning groove is slightly larger than the arc from the full open positioning groove to the micro open positioning groove in the same direction of rotation, thereby enabling the magnetic locking ball valve to be locked in the full open position, the full close position, and the micro open position, and improving the applicability. Micro open means that the valve is in a small opening, which makes the distance between the micro open positioning groove and the full close positioning groove small and causes interference, so in the conventional art, if the micro open locking is to be set, the person skilled in the art is prone to think of setting a magnetic elastic locking part at the height position of the side of the control rod consistent with the micro open positioning groove, and the original elastic locking part, the full close positioning groove, and the full open positioning groove constitute a locking structure that enables the control rod to be locked in the full open position or the full close position, and the staggered micro open positioning groove and the additional elastic locking part constitute a locking structure that enables the control rod to be locked in the micro open position. However, the present case innovatively sets the full open positioning groove in the circumferential direction between the micro open positioning groove and the full close positioning groove, that is, the direction of rotation of the magnetic locking ball valve from the full open position to the micro open position is opposite to the direction of rotation from the full open position to the full close position, thereby enabling the magnetic locking ball valve to achieve full open position locking, full close position locking, and micro open position locking while still using one magnetic elastic locking part.

[0010] Further, since the full open positioning groove is located between the slightly open positioning groove and the full close positioning groove in the circumferential direction, that is, the maximum rotation angle of the control rod required in the same rotation direction is the radian between the full close positioning groove and the slightly open positioning groove, the magnetic locking ball valve is provided with a limiting part two corresponding to the slightly open position in the valve body on the basis of the limiting part one corresponding to the full close position and the limiting pin provided on the side of the control rod, and the limiting pin is located between the limiting part one and the limiting part two, thereby limiting the maximum rotation angle of the control rod and ensuring that the control rod cannot be rotated after being rotated to the full close or slightly open state. Due to the reason that the full open positioning groove is located between the slightly open positioning groove and the full close positioning groove in the circumferential direction, the magnetic locking ball valve cannot be limited after the control rod is rotated to the full open position as in the prior art, and therefore the magnetic locking ball valve is provided with an elastic member on the unlocking key, the elastic member partially extends out of the unlocking key and the part of the elastic member extending out of the unlocking key is in the shape of a spherical cap, and the valve body is provided with a matching hole corresponding to the full open position, so that a click sound occurs when the management personnel drives the control rod to rotate to the position where the outer end of the elastic member is embedded into the matching hole by the unlocking key, and the management personnel feels a damping feeling during the rotation operation, so that the management personnel can know that the control rod has been rotated to the full open position, thereby ensuring that the elastic locking member can be accurately inserted into the full open positioning groove to lock the magnetic locking ball valve at the full open position. The self elastic force of the elastic member and the part of the elastic member extending out of the unlocking key in the shape of a spherical cap make the limiting of the full open position flexible, and after the management personnel applies a torsion to the unlocking key, the elastic member moves along the hole of the matching hole and is retracted into the unlocking key to ensure that the control rod can be rotated after being unlocked. In particular, the unlocking key is used for unlocking, and it is not thought that the unlocking key is also used for limiting.

[0011] In the magnetic locking ball valve, the unlocking key is provided with a mounting hole, the elastic member includes a limiting spring and a ball provided in the mounting hole, and the diameter of the ball is greater than the diameter of the hole at the hole opening of the mounting hole.

[0012] The diameter of the ball is greater than the diameter of the hole at the hole opening of the mounting hole, so that a part of the ball is exposed outside the mounting hole, and the part of the ball makes the part of the elastic member extending out of the unlocking key in the shape of a circular crown. Moreover, the ball can freely roll and form rolling friction, so that the torsion required by the management personnel when rotating the unlocking key under the condition that the ball is embedded into the matching hole is smaller, thereby ensuring that the operation of the management personnel is relatively light.

[0013] In the magnetic locking ball valve, as another technical solution, the unlocking key is provided with a mounting hole, and the elastic member is a ball head plunger provided in the mounting hole.

[0014] The plunger end of the ball plunger is in the shape of a spherical cap. When the plunger end is inserted into the matching hole, the opening of the matching hole will move along the plunger end and form an upward extrusion force on the plunger end to push it out of the matching hole when the administrator rotates the unlocking key.

[0015] In the magnetic locking ball valve, the valve body includes a main body with a neck at the upper end, a valve cap threadedly connected to the main body and limiting the ball core in the main body, and a compression ring threadedly connected to the upper end of the neck, the control rod is arranged in the neck of the main body and the compression ring axially positions the control rod in the main body, the matching hole is arranged on the top surface of the neck of the main body, the bottom of the unlocking key is provided with a sleeving hole, and the mounting hole is arranged in the vertical direction and penetrates the top hole wall of the sleeving hole.

[0016] The matching hole is arranged on the top surface of the neck of the main body, and the direction of the unlocking key sleeved on the valve body is unique. Therefore, when the unlocking key is sleeved on the valve body, the outer end of the elastic member is directly inserted into the matching hole. Obviously, such an arrangement makes the elastic member not hinder or affect the sleeving of the unlocking key on the valve body.

[0017] In the magnetic locking ball valve, as another technical solution, the valve body includes a main body with a neck at the upper end, a valve cap threadedly connected to the main body and limiting the ball core in the main body, and a compression ring threadedly connected to the upper end of the neck, the control rod is arranged in the neck of the main body and the compression ring axially positions the control rod in the main body, the matching hole is arranged on the compression ring, the compression ring is further provided with a connecting hole two, the matching hole and the connecting hole two are circumferentially distributed, the bottom of the unlocking key is provided with a sleeving hole, and the mounting hole is arranged in the vertical direction and penetrates the top hole wall of the sleeving hole.

[0018] The compression ring is threadedly connected to the upper end of the neck of the main body. In fact, the compression ring also belongs to part of the top of the valve body. The matching hole is arranged on the compression ring. The direction of the unlocking key sleeved on the valve body is unique. Therefore, when the unlocking key is sleeved on the valve body, the outer end of the elastic member is directly inserted into the matching hole. Obviously, such an arrangement makes the elastic member not hinder or affect the sleeving of the unlocking key on the valve body. In addition, the connecting hole two is arranged on the compression ring, and the matching hole and the connecting hole two are circumferentially distributed. In this way, the matching hole can not only be used to cooperate with the elastic member to limit the position, but also be matched with the connecting hole two to be connected with the tool to facilitate the disassembly and installation of the compression ring. That is, one matching hole has two functions.

[0019] In the magnetic locking ball valve, the valve body is provided with an annular groove, the outer side of the valve body is provided with a through hole one and a through hole two which are connected with the annular groove, the limiting part one is a pin one fixed in the through hole one, and the limiting part two is a pin two fixed in the through hole two.

[0020] In the case, the annular groove is directly machined in the valve body, and the through hole one and the through hole two are arranged outside the valve body and communicated with the annular groove, the pin one is directly fixed in the through hole one to be used as the limiting part one, and the pin two is fixed in the through hole two to be used as the limiting part two, so that the machining is more convenient, especially the accuracy of the limiting angle from the full closing position to the slightly opening position can be better ensured (only the positions of the through hole one and the through hole two need to be calculated outside during machining).

[0021] In the magnetic locking ball valve, the upper end side of the valve body has two parallel process planes, the through hole one penetrates one of the process planes, and the through hole two penetrates the other process plane.

[0022] The two process planes are arranged, on the one hand, the machining of the through hole one and the through hole two can be more convenient, and on the other hand, the positions of the through hole one and the through hole two can be more accurately ensured to ensure the accuracy of the limiting angle.

[0023] In the magnetic locking ball valve, the radian of the full closing positioning groove to the full opening positioning groove in the same rotation direction is 90°, the radian of the full opening positioning groove to the slightly opening positioning groove is 80°, and the radian of the limiting part one to the limiting part two is 170°.

[0024] Compared with the prior art, the magnetic locking ball valve has the following advantages:

[0025] 1. On the basis of arranging the full opening positioning groove and the full closing positioning groove, the slightly opening positioning groove is further arranged, the full opening positioning groove is located between the slightly opening positioning groove and the full closing positioning groove in the circumferential direction, the radian of the full closing positioning groove to the full opening positioning groove in the same rotation direction is slightly larger than the radian of the full opening positioning groove to the slightly opening positioning groove, so that the magnetic locking ball valve can be locked at the full opening position and the full closing position, and has the function of being locked at the slightly opening position, and the applicability is improved.

[0026] 2、Setting limit part one, limit part two and limit pin constitute the limit to the maximum rotation angle of control rod to ensure that the control rod cannot rotate again after rotating to the full closed or slightly open state, and the elastic member is arranged on the unlocking key, the outer end of the elastic member extends out of the unlocking key, and the outer end of the elastic member is in the form of a spherical cap, and the valve body is provided with a matching hole corresponding to the position of the full open positioning groove, so that when the management personnel drive the control rod to rotate to the outer end of the elastic member embedded in the matching hole through the unlocking key, a click sound will occur and the management personnel will feel the damping of the rotating operation, so that the management personnel can know that the control rod has been rotated to the full open position, thereby ensuring that the elastic locking member can be accurately inserted into the full open positioning groove to lock the magnetic locking ball valve at the full open position.

[0027] 3、The elastic member is arranged on the unlocking key, so that the unlocking key can also play a limiting role, that is, the unlocking key has two functions, and this also means that the structure for limiting the control rod at the full open position is arranged outside the valve body rather than inside, so that the limiting of the full open position and the limiting of the control rod at the two limit positions (i.e. full closed and slightly open) are clearly separated, the reliability is higher, and the problem of complex machining caused by being arranged inside the valve body is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a cross-sectional view of the magnetic locking ball valve embodiment one.

[0029] Figure 2 is Figure 1 A-A direction in the cross-sectional view.

[0030] Figure 3 is Figure 1 B-B direction in the cross-sectional view.

[0031] Figure 4 is a perspective view of the magnetic locking ball valve after the unlocking key and the compression ring are removed.

[0032] Figure 5 is a cross-sectional view of the magnetic locking ball valve embodiment three.

[0033] In the figure, 1, valve body; 1a, full open positioning groove; 1b, full closed positioning groove; 1c, slightly open positioning groove; 1d, annular groove; 1e, matching hole; 1f, process plane; 1g, main body; 1h, valve cap; 1i, compression ring; 1i1, connecting hole one; 1i2, connecting hole two; 2, ball core; 3, control rod; 3a, shaft shoulder; 4, elastic locking member; 4a, locking magnetic column; 4b, locking spring; 5, unlocking key; 5a, mounting hole; 5b, sleeve hole; 5c, connecting hole; 6, unlocking magnetic column; 7, limit part one; 8, limit pin; 9, limit part two; 10, elastic member; 10a, ball; 10b, limiting spring. DETAILED DESCRIPTION

[0034] The following is a specific embodiment of the present application and further describes the technical solutions of the present application in conjunction with the drawings, but the present application is not limited to these embodiments.

[0035] Embodiment one

[0036] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the magnetic locking ball valve comprises a valve body 1 and a ball core 2 and a control rod 3 which are both arranged in the valve body 1, the lower end of the control rod 3 is connected with the ball core 2, and the upper end of the control rod 3 extends out of the valve body 1. The side of the control rod 3 is provided with an elastic locking member 4 with magnetism, and the valve body 1 is provided with a full opening positioning groove 1a and a full closing positioning groove 1b along the circumference, the full opening positioning groove 1a here refers to the position corresponding to the full opening position of the magnetic locking ball valve, that is, the maximum flow, and the full closing positioning groove 1b refers to the position corresponding to the full closing position of the magnetic locking ball valve, and the elastic locking member 4 can be inserted into the full opening positioning groove 1a or the full closing positioning groove 1b under the action of its own elastic force, wherein the side of the control rod 3 is provided with an assembly hole, the elastic locking member 4 with magnetism comprises a locking spring 4b and a locking magnetic column 4a which are both arranged in the assembly hole, the two ends of the locking spring 4b are respectively abutted on the hole wall of the assembly hole and the inner end of the locking magnetic column 4a, when the control rod 3 is rotated to the position where the locking magnetic column 4a is opposite to the full opening positioning groove 1a or the full closing positioning groove 1b, the outer end of the locking magnetic column 4a is inserted into the full opening positioning groove 1a or the full closing positioning groove 1b under the action of the locking spring 4b, thereby locking the magnetic locking ball valve at the full opening position or the full closing position. The magnetic locking ball valve further comprises an unlocking key 5, the unlocking key 5 can be sleeved on the valve body 1 and forms a circumferential fixation with the control rod 3, the unlocking key 5 is provided with an unlocking magnetic column 6 which has the same magnetism as the locking magnetic column 4a, and after the unlocking key 5 is sleeved on the valve body 1, the position of the unlocking magnetic column 6 corresponds to the locking magnetic column 4a and generates a repulsive force thereon. The valve body 1 is further provided with a micro opening positioning groove 1c, the full opening positioning groove 1a is located between the micro opening positioning groove 1c and the full closing positioning groove 1b along the circumference, and the elastic locking member 4 can also be inserted into the micro opening positioning groove 1c under the action of its own elastic force, and the arc of the full closing positioning groove 1b to the full opening positioning groove 1a in the same rotating direction is slightly larger than the arc of the full opening positioning groove 1a to the micro opening positioning groove 1c. In this embodiment, the arc of the full closing positioning groove 1b to the full opening positioning groove 1a is 90°, and the arc of the full opening positioning groove 1a to the micro opening positioning groove 1c is 80°.

[0037] As shown in Figure 3As shown, the valve body 1 is further provided with a limiting part one 7 and a limiting part two 9, the limiting part one 7 and the limiting part two 9 are distributed in the circumferential direction, the control rod 3 is provided with a limiting pin 8, the limiting pin 8 is located between the limiting part one 7 and the limiting part two 9 in the circumferential direction, when the limiting pin 8 abuts against the limiting part one 7, the elastic locking part 4 is opposite to the full-closing positioning groove 1b, when the limiting pin 8 abuts against the limiting part two 9, the elastic locking part 4 is opposite to the slightly-open positioning groove 1c, that is, the limiting part one 7 corresponds to the full-closing position of the valve, the slightly-open positioning groove 1c corresponds to the slightly-open position of the valve, and the limiting part one 7 and the limiting part two 9 constitute the maximum angle that the control rod 3 can actually rotate. Of course, the height of the limiting pin 8 is lower than that of the elastic locking part 4. Specifically, the valve body 1 is provided with an annular groove 1d, the outer side of the valve body 1 is provided with a through hole one and a through hole two which are in communication with the annular groove 1d, the limiting part one 7 is a pin one fixed in the through hole one, and the limiting part two 9 is a pin two fixed in the through hole two. The upper end side of the valve body 1 has two parallel process planes 1f, the through hole one penetrates one of the process planes 1f, and the through hole two penetrates the other process plane 1f. The unlocking key 5 is provided with an elastic action part 10, the elastic action part 10 partially extends out of the unlocking key 5 and the part of the elastic action part 10 is in the shape of a spherical cap, the valve body 1 is provided with a matching hole 1e corresponding to the full-open position, and the elastic action part 10 can be embedded in the matching hole 1e during the rotation of the unlocking key 5, and the positions correspond to each other means that when the elastic action part 10 is inserted into the matching hole 1e, the control rod 3 is just in the position where the elastic locking part 4 is opposite to the full-open positioning groove 1a.

[0038] Specifically, as Figure 1 and Figure 4As shown, the matching hole 1e is located at the top of the valve body 1, the unlocking key 5 is provided with a mounting hole 5a in the vertical direction, and the elastic member 10 is arranged in the mounting hole 5a. The elastic member 10 includes a limiting spring 10b and a ball 10a, both of which are arranged in the mounting hole 5a. The diameter of the ball 10a is greater than the diameter of the hole at the opening of the mounting hole 5a. The valve body 1 includes a main body 1g having a neck at the upper end, a valve cap 1h threadedly connected with the main body 1g, and a compression ring 1i threadedly connected at the upper end of the neck. The ball core 2 is limited in the main body 1g by the valve cap 1h. The control rod 3 is arranged in the neck of the main body 1g and is provided with a full opening positioning groove 1a, a full closing positioning groove 1b, a slight opening positioning groove 1c, and an annular groove 1d. The matching hole 1e is arranged on the top surface of the neck of the main body 1g. The control rod 3 is provided with a shaft shoulder 3a at the position close to the upper end. The upper end of the control rod 3 penetrates through the compression ring 1i, and the compression ring 1i abuts against the shaft shoulder 3a. The neck of the main body 1g is further provided with a relief groove which penetrates through the upper end surface of the neck and communicates with the annular groove 1d. The relief groove is mainly used for limiting the limiting pin 8 during installation, so as to ensure that the control rod 3 provided with the limiting pin 8 at the side can be smoothly arranged in the neck of the main body 1g. The lower end of the unlocking key 5 is provided with a sleeve hole 5b. The unlocking key 5 is further provided with a connecting hole 5c which penetrates through the top hole wall of the sleeve hole 5b. The upper end of the control rod 3 is provided with a cutting plane. The shape of the connecting hole 5c is matched with the shape of the upper end of the control rod 3. The mounting hole 5a penetrates through the top hole wall of the sleeve hole 5b. The unlocking key 5 is sleeved on the neck of the main body 1g through the sleeve hole 5b. The upper end of the control rod 3 is inserted into the connecting hole 5c, so that the control rod 3 and the unlocking key 5 are circumferentially fixed. The existence of the cutting plane makes the matching direction of the upper end of the control rod 3 and the connecting hole 5c unique, so as to ensure that the unlocking magnetic column 6 in the unlocking key 5 is corresponded with the locking magnetic column 4a after the unlocking key 5 is sleeved on the valve body 1. The compression ring 1i is uniformly provided with two connecting holes 1i1 in the circumferential direction. The two connecting holes 1i1 are used for connecting tools to operate the compression ring 1i.

[0039] In the normal state, the locking magnetic column 4a is inserted into the full opening positioning groove 1a under the action of the locking spring 4b. The control rod 3 and the valve body 1 are circumferentially fixed together, so that the magnetic lock ball valve is locked in the full opening state (the full opening is the maximum flow). When the user is in arrears, the management personnel sleeves the unlocking key 5 on the valve body 1 and forms circumferential fixation with the control rod 3. The unlocking magnetic column 6 in the unlocking key 5 pushes the locking magnetic column 4a out of the full opening positioning groove 1a by repulsion force overcoming the action of the locking spring 4b, so that the control rod 3 and the valve body 1 are released from the circumferential locking. Then the management personnel rotates the control rod 3 through the unlocking key 5 to the position where the limiting pin 8 abuts against the limiting part two 9 (the rotating direction is counterclockwise as viewed from the top of the valve body 1). At this time, the unlocking magnetic column 6 in the unlocking key 5 is corresponded with the locking magnetic column 4a. Figure 2When the magnetic locking ball valve is in the fully open state, the unlocking key 5 is sleeved on the valve body 1, and a part of the ball 10a on the unlocking key 5 is embedded in the matching hole 1e, but the ball 10a is spherical and can roll freely, and after the management personnel applies a torque to the unlocking key 5, the ball 10a moves along the hole of the matching hole 1e and is retracted into the unlocking key 5.

[0040] After the user normally pays the fee, the management personnel re-sleeves the unlocking key 5 on the valve body 1 to unlock, and then drives the control rod 3 to return along the original path through the unlocking key 5 (the direction of rotation at this time is shown as the clockwise direction). Figure 2 When the unlocking key 5 is rotated to the position where the ball 10a is clamped into the matching hole 1e under the action of the limiting spring 10b, a click sound is generated and a damping feeling is generated to the operation of the management personnel, at this time the management personnel knows that the locking magnetic column 4a is again in the position opposite to the fully open positioning groove 1a, and the unlocking key 5 is taken off, so that the locking magnetic column 4a is inserted into the fully open positioning groove 1a under the action of the locking spring 4b to lock the magnetic locking ball valve in the fully open state.

[0041] When the pipeline needs to be repaired, the management personnel again sleeves the unlocking key 5 on the valve body 1 to unlock the control rod 3, and then drives the control rod 3 to rotate to the position where the limiting pin 8 abuts against the limiting part 7 through the unlocking key 5 (the direction of rotation at this time is shown as the counterclockwise direction). Figure 2 When the unlocking key 5 is rotated to the position where the ball 10a is clamped into the matching hole 1e under the action of the limiting spring 10b, a click sound is generated and a damping feeling is generated to the operation of the management personnel, at this time the management personnel knows that the locking magnetic column 4a is again in the position opposite to the fully open positioning groove 1a, and the unlocking key 5 is taken off, so that the locking magnetic column 4a is inserted into the fully open positioning groove 1a under the action of the locking spring 4b to lock the magnetic locking ball valve in the fully open state. Figure 2 When the unlocking key 5 is rotated to the position where the ball 10a is clamped into the matching hole 1e under the action of the limiting spring 10b, a click sound is generated and a damping feeling is generated to the operation of the management personnel, at this time the management personnel knows that the locking magnetic column 4a is again in the position opposite to the fully open positioning groove 1a, and the unlocking key 5 is taken off, so that the locking magnetic column 4a is inserted into the fully open positioning groove 1a under the action of the locking spring 4b to lock the magnetic locking ball valve in the fully open state.

[0042] Example Two

[0043] The structure and principle of this embodiment are basically the same as those of example one, and the difference lies in that in this embodiment, the elastic member 10 is a ball plunger.

[0044] Example Three

[0045] This embodiment is basically the same as the structure and principle of Example One, except that in this embodiment, as shown in the figure, a matching hole 1e is provided on the compression ring 1i, and the compression ring 1i is not provided with the above-mentioned connecting hole one 1i1, but is provided with a connecting hole two 1i2, and the matching hole 1e and the connecting hole two 1i2 are circumferentially distributed. Figure 5

[0046] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.​

Claims

1. A magnetic locking ball valve, comprising a valve body (1), a ball core (2) and a control rod (3) which are both arranged in the valve body (1), and an unlocking key (5) which can be sleeved on the valve body (1) and is circumferentially fixed with the control rod (3), the control rod (3) is provided with an elastic locking member (4) with magnetism on the side, the valve body (1) is provided with a full opening positioning groove (1a) and a full closing positioning groove (1b) which are both used for inserting the elastic locking member (4) under the elastic force of the elastic locking member (4) in the circumferential direction, and the valve body (1) is further provided with a limiting part one (7) corresponding to the full closing position, and the control rod (3) is provided with a limiting pin (8) on the side, characterized in that, The valve body (1) is further provided with a micro-opening positioning groove (1c), the full-opening positioning groove (1a) is located between the micro-opening positioning groove (1c) and the full-closing positioning groove (1b) in the circumferential direction, the arc of the full-closing positioning groove (1b) to the full-opening positioning groove (1a) in the same rotating direction is slightly larger than the arc of the full-opening positioning groove (1a) to the micro-opening positioning groove (1c), the valve body (1) is further provided with a limiting part two (9) corresponding to the micro-opening position, the limiting pin (8) is located between the limiting part one (7) and the limiting part two (9) in the circumferential direction, the unlocking key (5) is provided with an elastic member (10), the elastic member (10) partially extends out of the unlocking key (5) and the part of the elastic member (10) is in the shape of a spherical cap, the valve body (1) is provided with a matching hole (1e) corresponding to the full-opening position, and the elastic member (10) can be embedded into the matching hole (1e) in the rotation of the unlocking key (5).

2. The magnetic shut-off ball valve according to claim 1, characterized in that The unlocking key (5) is provided with a mounting hole (5a), and the elastic member (10) comprises a limiting spring (10b) and a ball (10a) which are both arranged in the mounting hole (5a), and the diameter of the ball (10a) is larger than the diameter of the hole at the hole opening of the mounting hole (5a).

3. The magnetic shut-off ball valve according to claim 1, characterized in that The unlocking key (5) is provided with a mounting hole (5a), and the elastic member (10) is a ball head plunger arranged in the mounting hole (5a).

4. The magnetic seated ball valve according to claim 2 or 3, wherein The valve body (1) comprises a main body (1g) with a neck at the upper end, a valve cap (1h) threadedly connected with the main body (1g) and limiting the ball core (2) in the main body (1g), and a compression ring (1i) threadedly connected in the upper end of the neck, the control rod (3) is arranged in the neck of the main body (1g) and the compression ring (1i) axially positions the control rod (3) in the main body (1g), the matching hole (1e) is arranged on the top surface of the neck of the main body (1g), the bottom of the unlocking key (5) is provided with a sleeve hole (5b), the mounting hole (5a) is arranged in the vertical direction and penetrates the top hole wall of the sleeve hole (5b).

5. The magnetic seated ball valve according to claim 2 or 3, wherein, The valve body (1) comprises a main body (1g) with a neck at the upper end, a valve cap (1h) threadedly connected with the main body (1g) and limiting the ball core (2) in the main body (1g), and a compression ring (1i) threadedly connected in the upper end of the neck, the control rod (3) is arranged in the neck of the main body (1g) and the compression ring (1i) axially positions the control rod (3) in the main body (1g), the matching hole (1e) is arranged on the compression ring (1i), and the compression ring (1i) is further provided with a connecting hole two (1i2), the matching hole (1e) and the connecting hole two (1i2) are circumferentially distributed, the bottom of the unlocking key (5) is provided with a sleeve hole (5b), the mounting hole (5a) is arranged in the vertical direction and penetrates the top hole wall of the sleeve hole (5b).

6. The magnetic shut-off ball valve according to claim 1, characterized in that The valve body (1) is provided with an annular groove (1d), the outer side of the valve body (1) is provided with a through hole one and a through hole two which are communicated with the annular groove (1d), the limiting part one (7) is a pin one fixed in the through hole one, and the limiting part two (9) is a pin two fixed in the through hole two.

7. The magnetic shut-off ball valve according to claim 6, characterized in that The valve body (1) has two parallel process planes (1f) on the upper end side, a first through hole penetrating one of the process planes (1f), and a second through hole penetrating the other process plane (1f).

8. The magnetic shut-off ball valve according to claim 1, characterized in that The arc of the full-closing positioning groove (1b) to the full-opening positioning groove (1a) in the same rotation direction is 90°, the arc of the full-opening positioning groove (1a) to the slightly-opening positioning groove (1c) is 80°, and the arc of the first limiting part (7) to the second limiting part (9) is 170°.

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