A detachable valve core integrated electric actuator

Abstract

The present invention provides a detachable valve core integrated electric actuator, which includes an actuator assembly and a valve core assembly. The actuator assembly includes a base and a temperature bulb with an electric heating device. It also includes an indicating cover with a quick-release ear that abuts against the push rod of the temperature bulb. The indicating cover is provided with a sliding section and a shoulder, and a threaded seat is also fixed above the base. A knob is sleeved outside the threaded seat. The valve core assembly includes a housing, which is provided with an inlet, an outlet, and a control port with a valve cover. A valve seat is arranged inside the housing. The valve cover is provided with a valve rod, and the valve rod is provided with a valve core and a closing valve spring. One end of the valve rod exposed outside the valve cover is provided with a quick-release module. The present invention can effectively ensure the elasticity of the opening valve spring, cancel the closing valve spring on the existing electric actuator to increase the closing valve pressure of the valve core, and ensure the advantage of convenient installation.

Description

[0001] The present invention relates to the technical field of heating, and particularly to a detachable valve core integrated electric actuator. Background Art

[0002] When the heating manifold is actually used in the current market, the situation of uneven temperatures in each branch often occurs. When the laying lengths of the floor heating pipes in each branch are the same, usually the temperature of the branch closest to the water supply main pipeline is the highest, and the temperature of the branch farthest from the water supply main pipeline is the lowest. The reason is that the resistance of the branch closest to the water supply main pipeline is the smallest and the flow rate is the largest; the resistance of the branch farthest from the water supply main pipeline is the largest, so the flow rate is the smallest. In the actual process of laying floor heating pipes, there will also be a situation where the lengths of the floor heating pipes in each branch are different, which makes the complexity of uneven temperature differences in each branch, and it is also a long-standing and difficult problem that plagues the heating industry. Therefore, the manifold and the actuator are born, and the flow rate of each branch is controlled through the joint cooperation of the two.

[0003] Currently, when the current electric actuator is connected to each valve core assembly on the manifold, it is often docked by means of threads, and the valve stem of the valve core assembly is abutted against the driving end of the electric actuator. When the valve core assembly is not installed with the electric actuator, the valve core installed on the valve stem is kept away from the valve seat by its own opening valve spring to keep the water path fully open. Only when the electric actuator is installed and abutted against the valve stem, the closing valve spring with an internal elastic force greater than that of the opening valve spring in the electric actuator is used to compress the closing valve spring, forcing the valve core to contact the valve seat to cut off the water path. Then, the movement of the valve stem is adjusted through the electric temperature package or handwheel of the electric actuator to adjust the flow rate. Therefore, it can be seen that the acting forces of the opening valve spring of the valve core assembly and the closing valve spring of the electric actuator are mutually repulsive, so it will cause elastic force loss when the closing valve spring compresses the opening valve spring, resulting in a reduction in the extrusion force between the valve core and the valve seat when the closing valve spring acts on the valve core. When the water pressure or flow rate fluctuates, it is easy to cause the valve core to be pushed open or displaced, ultimately resulting in temperature fluctuations. At the same time, when the electric actuator is installed, it needs to be threadedly engaged with the valve core assembly. Therefore, it is necessary to press down the electric actuator to make it close to the valve core assembly and compress the opening valve spring or even the closing valve spring to successfully dock the threads, and keep pressing down during the docking process to reduce the friction during tightening, so the installation is quite laborious. Summary of the Invention

[0004] Based on the above problems, the object of the present invention is to provide a detachable valve core integrated electric actuator that can effectively ensure the elastic force of the opening valve spring, cancel the closing valve spring on the existing electric actuator to increase the closing pressure of the valve core, and ensure the convenience of installation.

[0005] In view of the above problems, the following technical solutions are provided: A detachable valve core integrated electric actuator, including an actuator assembly, the actuator assembly includes a base, a temperature bulb mounting position is provided above the base, a temperature bulb with a push rod arranged upward and an electric heating device at the bottom is provided at the temperature bulb mounting position; further includes an indicating cover sleeved outside the temperature bulb and abutted against the push rod to realize up and down movement, a quick-release ear passing through the base is provided below the indicating cover; a sliding section is provided at the upper end of the indicating cover, a shoulder is provided on the outer wall of the upper end of the sliding section, a threaded seat sleeved outside the indicating cover is further fixed above the base, a knob that realizes lifting by rotating and being threadedly matched with the threaded seat is sleeved outside the threaded seat, the top of the knob is open and a boosting part located inside the sliding section and abutted against the shoulder when the knob rises to drive the indicating cover to move upward is provided on the inner wall; further includes a valve core assembly, the valve core assembly includes a housing, the housing is provided with an inlet, an outlet and a control port provided with a valve cover, a valve seat is provided inside the housing, the inlet is communicated with the lower part of the valve seat, and the outlet is communicated with the upper part of the valve seat; the valve cover is provided with a valve rod, one end of the valve rod passes through the valve cover and is exposed, the other end is provided with a valve core, a closing valve spring that abuts against the valve cover at one end and abuts against the valve core at the other end to press the valve core against the valve seat is sleeved on the valve rod; a quick-release module that is buckled with the quick-release ear when the actuator assembly and the valve core assembly are assembled is provided at the end of the valve rod exposed outside the valve cover.

[0006] In the above structure, before adjustment, the closing valve spring pushes the valve core to make it contact with the valve seat, so that the inlet and the outlet are in a cut-off state; the electric heating device is controlled by a PTC thermistor. When starting electric adjustment, power is supplied to the electric heating device to increase the temperature of the temperature bulb, the push rod extends out and abuts against the indicating cover to push the indicating cover. At this time, the indicating cover rises relative to the knob, and drives the quick-release module connected to the valve rod to rise through the quick-release ear, pulling the valve core away from the valve seat and compressing the closing valve spring to realize electric opening. When the power is cut off or the current or voltage is reduced, the temperature of the temperature bulb drops, the push rod loses the thrust, the valve core is pushed by the closing valve spring to reset and approach or contact the valve seat, and at the same time drives the quick-release module and the indicating cover to descend together through the valve rod; when manually adjusting, rotate the knob, the knob rises relative to the threaded seat. At this time, the boosting part of the knob abuts against the shoulder to push the indicating cover to move upward, and drives the quick-release module connected to the valve rod to rise through the quick-release ear, pulling the valve core away from the valve seat and compressing the closing valve spring to realize manual opening. When the knob is rotated in the reverse direction, the knob descends, the indicating cover loses support, the valve core is pushed by the closing valve spring to reset and approach or contact the valve seat, and at the same time drives the quick-release module and the indicating cover to descend together through the valve rod; because there is a sliding section on the indicating cover, there will be a clutch with the knob during electric adjustment, so that they do not interfere with each other; at the same time, because there is only one closing valve spring, it can effectively ensure that all the elastic force of the closing valve spring can act on the valve core when closing the valve, avoiding the elastic force loss caused by the existing double springs pushing against each other, and directly buckling and pressing the actuator assembly and the valve core assembly during installation can realize the docking of the quick-release ear and the quick-release module.

[0007] The present invention is further configured as follows: the quick-release ear is provided with a buckling portion; the quick-release module includes a connecting bracket and an elastic buckle, the connecting bracket includes a pull plate and a fixed wall located at the outer edge of the pull plate and extending upward, and the fixed wall is provided with a sliding groove opened in opposite directions; the elastic buckle includes a push plate located above the pull plate and an elastic arm connected to the push plate and located on the inner side of the fixed wall, the elastic arm is provided with a fastener, and the fastener passes through and protrudes outward from the sliding groove; when the actuator assembly and the valve core assembly are assembled, the quick-release ear is located on the outside of the fixed wall and is buckled with the fastener through the buckling portion.

[0008] In the above structure, the snap-fitting portion is a through groove or a hook, and the fastener can be a hook adapted to the snap-fitting portion; when the actuator assembly and the valve core assembly are assembled, as the two are pressed closer to each other, the fastener and the quick-release ear abut against each other, thereby deforming the elastic arm, causing the part of the fastener protruding from the slide groove to shrink inward, and when the snap-fitting portion reaches the fastener and is flush with the fastener, the elastic arm pushes the fastener to rebound and engage with the snap-fitting portion.

[0009] The present invention is further configured such that the valve stem passes through the pull plate and the push plate and a clamping portion is provided between the two to achieve connection with the connecting bracket and the elastic buckle.

[0010] In the above structure, the engaging portion is an external retaining spring, which is used to control the axial position of the pull plate and the push plate relative to the valve stem. The valve stem is provided with an external groove for fixing the external retaining spring.

[0011] The present invention is further configured such that there are two quick-release ears, which are arranged 180 degrees apart in the circumferential direction of the indicator cover; there are two fixed walls, which are arranged 180 degrees apart in the circumferential direction of the pull plate; and there are two elastic arms, which are symmetrically arranged 180 degrees apart in the circumferential direction of the push plate.

[0012] In the above structure, stress can be effectively shared to avoid skewness caused by uneven force.

[0013] The present invention is further configured such that the connection point between the elastic arm and the push plate and the swinging end of the elastic arm are spaced 90 degrees apart in the circumferential direction of the push plate; the two elastic arms are arranged at a V-shaped angle and unlocking grooves are provided on the outer sides of the elastic arms; an unlocking push plate is also included, and an anti-slip groove is provided in the center of the unlocking push plate for allowing the valve stem to pass through, and a tightening groove is provided on the side of the unlocking push plate facing the elastic arm, which is adapted to the unlocking groove and brings the swinging ends of the elastic arms closer to each other when the unlocking push plate is pushed in the length direction of the anti-slip groove; the side wall of the base is provided with an unlocking port which is arranged corresponding to the unlocking push plate when the actuator assembly and the valve core assembly are assembled.

[0014] In the above structure, when the actuator assembly and the valve core assembly need to be disassembled, the unlocking push plate is pushed to make the elastic arms move closer to each other, and the fastener retracts and separates from the fastening part, thereby achieving the purpose of quick disassembly; one end of the anti-slip groove is against the valve stem, which is used to constrain the sliding position of the unlocking push plate to prevent it from falling off the elastic arm.

[0015] The present invention is further configured such that an unlocking button is provided on the unlocking opening and abuts against the unlocking push plate.

[0016] In the above structure, the unlocking button is made of rubber or silicone material, is used to block the unlocking port, and can push the unlocking push plate by pressing.

[0017] The present invention is further configured such that a return spring is provided in the anti-slip groove and is adapted to abut against the valve stem after the unlocking push plate is pushed to assist in pushing the unlocking push plate back to its original position.

[0018] In the above structure, the two elastic arms are arranged at a V-shaped angle, so the unlocking push plate can rebound under the elastic force of the elastic arms. In order to further ensure the reliability of the rebound, a reset spring is added to assist in pushing the unlocking push plate back to its original position.

[0019] The present invention is further configured such that a positioning mark is provided on a side of the base facing the valve core assembly.

[0020] In the above structure, the positioning mark is used to display the circumferential position of the actuator assembly relative to the valve core assembly, which is convenient for alignment to ensure that the unlocking port can be aligned with the unlocking push plate after the two are assembled.

[0021] The present invention is further configured such that an outer edge of the push plate is provided with an outer convex portion, the elastic arm is connected to the outer convex portion, and the outer convex portion is located between adjacent quick-release ears when the actuator assembly and the valve core assembly are assembled.

[0022] In the above structure, based on the positioning mark, this structure is used to perform physical anti-mistake, so that the actuator assembly and the valve core assembly can be quickly aligned with each other's circumferential positions through a small amount of relative rotation when assembled, ensuring that the unlocking port can be aligned with the unlocking push plate.

[0023] The present invention is further configured such that when the actuator assembly and the valve core assembly are assembled, the base is fixed against the valve cover or the housing.

[0024] In the above structure, the base is fixed against the valve cover or the housing, so that the base has a fulcrum, which prevents the base from rotating along with the knob when the knob is rotated.

[0025] Advantages of the present invention: Before adjustment, the closing valve spring pushes the valve core to make it contact with the valve seat, so that the inlet and outlet are in a cut-off state; a PTC thermistor is used to control the electric heating device. When starting electric adjustment, power is supplied to the electric heating device to increase the temperature of the temperature package. The push rod extends out and abuts against the indicating cover to push the indicating cover. At this time, the indicating cover rises relative to the knob, and drives the quick-release module connected to the valve rod to rise through the quick-release ear, pulling the valve core away from the valve seat and compressing the closing valve spring to achieve electric opening. When the power is cut off or the current or voltage is reduced, the temperature of the temperature package drops, the push rod loses the thrust, and the valve core is pushed by the closing valve spring to reset and approach or contact the valve seat. At the same time, the quick-release module and the indicating cover are driven to descend together through the valve rod; when manually adjusting, rotate the knob, and the knob rises relative to the threaded seat. At this time, the boosting part of the knob abuts against the shoulder to push the indicating cover upward, and drives the quick-release module connected to the valve rod to rise through the quick-release ear, pulling the valve core away from the valve seat and compressing the closing valve spring to achieve manual opening. When the knob is rotated in the reverse direction, the knob descends, the indicating cover loses support, and the valve core is pushed by the closing valve spring to reset and approach or contact the valve seat. At the same time, the quick-release module and the indicating cover are driven to descend together through the valve rod; because there is a sliding section on the indicating cover, there will be a clutch with the knob during electric adjustment, so that they do not interfere with each other; at the same time, because there is only one closing valve spring, it can effectively ensure that all the elastic forces of the closing valve spring can act on the valve core during closing, avoiding the elastic force loss caused by the existing double springs pushing against each other, and directly buckling and pressing the actuator assembly and the valve core assembly during installation can realize the docking of the quick-release ear and the quick-release module. Brief Description of the Drawings

[0026] Figure 1 It is a three-dimensional view of the combined state of the actuator assembly and the valve core assembly of the present invention.

[0027] Figure 2 It is a three-dimensional view of the first perspective of the separated state of the actuator assembly and the valve core assembly of the present invention.

[0028] Figure 3 It is a three-dimensional view of the second perspective of the separated state of the actuator assembly and the valve core assembly of the present invention.

[0029] Figure 4 It is an exploded structural schematic diagram of the actuator assembly and the valve core assembly of the present invention.

[0030] Figure 5 It is a fully-sectioned three-dimensional view of the combined closing valve state of the actuator assembly and the valve core assembly of the present invention.

[0031] Figure 6 It is a fully-sectioned three-dimensional view of the combined electric valve opening state of the actuator assembly and the valve core assembly of the present invention.

[0032] Figure 7 It is a fully-sectioned three-dimensional view of the combined manual valve opening state of the actuator assembly and the valve core assembly of the present invention.

[0033] Figure 8 This is a full-section three-dimensional view of the closed valve state with the actuator assembly and the valve core assembly separated according to the present invention.

[0034] Figure 9 This is a full-section three-dimensional view of the electric valve-opening state with the actuator assembly and the valve core assembly separated according to the present invention.

[0035] Figure 10 This is a full-section three-dimensional view of the manual valve-opening state with the actuator assembly and the valve core assembly separated according to the present invention.

[0036] Figure 11 This is a full-section three-dimensional view of the connection state between the indicating cover and the quick-release module according to the present invention.

[0037] Figure 12 This is a three-dimensional view of the connection state between the elastic buckle and the unlocking push plate according to the present invention.

[0038] Figure 13 This is a first-perspective three-dimensional view of the exploded state of the elastic buckle and the unlocking push plate according to the present invention.

[0039] Figure 14 This is a second-perspective three-dimensional view of the connection state between the elastic buckle and the unlocking push plate according to the present invention.

[0040] The meanings of the reference numerals in the figure: 1 - actuator assembly; 10 - base; 101 - temperature package installation position; 1011 - anti-disengagement claw; 102 - unlocking port; 103 - unlocking button; 104 - positioning mark; 11 - temperature package; 111 - push rod; 12 - electric heating device; 13 - indicating cover; 131 - quick-release ear; 1311 - fastening portion; 132 - sliding section; 133 - shoulder; 14 - threaded seat; 15 - knob; 151 - boosting portion; 2 - valve core assembly; 20 - housing; 201 - inlet; 202 - outlet; 203 - control port; 204 - valve seat; 21 - valve cover; 22 - valve stem; 221 - engaging portion; 222 - outer groove; 23 - valve core; 24 - closing valve spring; 30 - quick-release module; 31 - connecting bracket; 311 - pull plate; 312 - fixed wall; 3121 - chute; 32 - elastic buckle; 321 - push plate; 3211 - outer convex portion; 322 - elastic arm; 3221 - fastener; 3222 - unlocking chute; 33 - unlocking push plate; 331 - anti-disengagement chute; 332 - tightening groove; 333 - return spring. Detailed Embodiments

[0041] The following will further describe in detail the specific embodiments of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0042] Reference Figures 1 to 14 As Figures 1 to 14A detachable valve core integrated electric actuator as shown, comprising an actuator assembly 1, wherein the actuator assembly 1 includes a base 10, a temperature bulb mounting position 101 is provided above the base 10, a push rod 111 is arranged upward at the temperature bulb mounting position 101, and a temperature bulb 11 with an electric heating device 12 at the bottom; it further includes an indicating cover 13 sleeved outside the temperature bulb 11 and abutted against the push rod 111 to realize up and down movement, and a quick-release ear 131 passing through the base 10 is provided below the indicating cover 13; a sliding section 132 is provided at the upper end of the indicating cover 13, a shoulder 133 is provided on the outer wall of the upper end of the sliding section 132, a threaded seat 14 sleeved outside the indicating cover 13 is further fixed above the base 10, a knob 15 is sleeved outside the threaded seat 14 and realizes lifting by rotating and being threadedly matched with the threaded seat 14, the top of the knob 15 is open, and a boosting portion 151 is provided on the inner wall and located inside the sliding section 132, which abuts against the shoulder 133 when the knob 15 rises to drive the indicating cover 13 to move upward; it further includes a valve core assembly 2, wherein the valve core assembly 2 includes a housing 20, the housing 20 is provided with an inlet 201, an outlet 202 and a control port 203 provided with a valve cover 21, a valve seat 204 is arranged inside the housing 20, the inlet 201 is communicated with the lower part of the valve seat 204, and the outlet 202 is communicated with the upper part of the valve seat 204; a valve rod 22 is provided on the valve cover 21, one end of the valve rod 22 passes through the valve cover 21 and is exposed, the other end is provided with a valve core 23, and a closing valve spring 24 is sleeved on the valve rod 22, one end of which abuts against the valve cover 21 and the other end abuts against the valve core 23 to press the valve core 23 onto the valve seat 204; a quick-release module 30 is provided at the end of the valve rod 22 exposed outside the valve cover 21, which is buckled with the quick-release ear 131 when the actuator assembly 1 and the valve core assembly 2 are assembled.

[0043] In the above structure, before adjustment, the closing valve spring 24 pushes the valve core 23 to make it contact with the valve seat 204, so that the inlet 201 and the outlet 202 are in a cut-off state; the PTC thermistor is used to control the electric heating device 12. When the electric adjustment is started, power is supplied to the electric heating device 12 to increase the temperature of the temperature package 11. The push rod 111 extends outwards and abuts against the indicating cover 13 to push the indicating cover 13. At this time, the indicating cover 13 rises relative to the knob 15, and drives the quick-release module 30 connected to the valve rod 22 to rise through the quick-release ear 131, pulling the valve core 23 away from the valve seat 204 and compressing the closing valve spring 24 to achieve electric opening. When the power is cut off or the current or voltage is reduced, the temperature of the temperature package 11 drops, the push rod 111 loses the thrust, and the valve core 23 is pushed by the closing valve spring 24 to reset and approach or contact the valve seat 204. At the same time, the quick-release module 30 and the indicating cover 13 are driven by the valve rod 22 to descend together; when manually adjusting, rotate the knob 15, and the knob 15 rises relative to the threaded seat 14. At this time, the boosting part 151 of the knob 15 abuts against the shoulder 133 to push the indicating cover 13 to rise, and drives the quick-release module 30 connected to the valve rod 22 to rise through the quick-release ear 131, pulling the valve core 23 away from the valve seat 204 and compressing the closing valve spring 24 to achieve manual opening. When the knob 15 is rotated in the reverse direction, the knob 15 descends, the indicating cover 13 loses support, and the valve core 23 is pushed by the closing valve spring 24 to reset and approach or contact the valve seat 204. At the same time, the quick-release module 30 and the indicating cover 13 are driven by the valve rod 22 to descend together; because there is a sliding section 132 on the indicating cover 13, there will be a clutch with the knob 15 during electric adjustment, so that they do not interfere with each other; at the same time, because there is only one closing valve spring 24, it can effectively ensure that all the elastic forces of the closing valve spring 24 can act on the valve core 23 when closing the valve, avoiding the elastic force loss caused by the existing double springs pushing against each other, and directly buckling and pressing the actuator assembly 1 and the valve core assembly 2 during installation can realize the docking of the quick-release ear 131 and the quick-release module 30.

[0044] In this embodiment, the quick-release ear 131 is provided with a fastening part 1311; the quick-release module 30 includes a connecting bracket 31 and an elastic buckle 32. The connecting bracket 31 includes a pulling plate 311 and a fixing wall 312 located on the outer edge of the pulling plate 311 and extending upwards. A through chute 3121 is provided on the fixing wall 312; the elastic buckle 32 includes a pushing plate 321 located above the pulling plate 311 and an elastic arm 322 connected to the pushing plate 321 and located inside the fixing wall 312. A fastener 3221 is provided on the elastic arm 322, and the fastener 3221 passes through and protrudes out of the chute 3121; when the actuator assembly 1 and the valve core assembly 2 are assembled, the quick-release ear 131 is located outside the fixing wall 312 and is fastened and connected to the fastener 3221 through the fastening part 1311.

[0045] In the above structure, the fastening portion 1311 is a through groove or a catch, and the fastener 3221 can be a catch adapted to the fastening portion 1311. When the actuator assembly 1 and the valve core assembly 2 are assembled, as they approach each other in the pressing direction, the fastener 3221 abuts against the quick-release ear 131, causing the elastic arm 322 to deform, prompting the portion of the fastener 3221 protruding outside the sliding groove 3121 to retract. When the fastening portion 1311 reaches the position of the fastener 3221 and is flush with the fastener 3221, the elastic arm 322 pushes the fastener 3221 to rebound and engage with the fastening portion 1311.

[0046] In this embodiment, the valve stem 22 passes through the pull plate 311 and the push plate 321, and a fastening portion 221 is provided between the two to achieve the connection with the connecting bracket 31 and the elastic buckle 32.

[0047] In the above structure, the fastening portion 221 is an external snap ring, which is used to control the axial position between the pull plate 311 and the push plate 321 relative to the valve stem 22, and an external groove 222 for fixing the external snap ring is provided on the valve stem 22.

[0048] In this embodiment, there are two quick-release ears 131, which are arranged at intervals of 180 degrees in the circumferential direction of the indicating cover 13; there are two fixed walls 312, which are arranged at intervals of 180 degrees in the circumferential direction of the pull plate 311; there are two elastic arms 322, which are symmetrically arranged at intervals of 180 degrees in the circumferential direction of the push plate 321.

[0049] In the above structure, the stress can be effectively shared, avoiding skewing caused by uneven stress.

[0050] In this embodiment, the connection between the elastic arm 322 and the push plate 321 and the swing end of the elastic arm 322 are spaced 90 degrees in the circumferential direction of the push plate 321; the two elastic arms 322 are arranged at a V-shaped angle, and unlocking sliding grooves 3222 are provided on the outer sides of the elastic arms 322; further included is an unlocking push plate 33, a anti-disengagement sliding groove 331 for the valve stem 22 to pass through is provided at the center of the unlocking push plate 33, and a tightening groove 332 adapted to the unlocking sliding groove 3222 is provided on the surface of the unlocking push plate 33 facing the elastic arm 322, which makes the swing ends of the elastic arms 322 approach each other when the unlocking push plate 33 is pushed in the length direction of the anti-disengagement sliding groove 331; an unlocking port 102 corresponding to the unlocking push plate 33 is provided on the side wall of the base 10 in the assembled state of the actuator assembly 1 and the valve core assembly 2.

[0051] In the above structure, when the actuator assembly 1 and the valve core assembly 2 need to be disassembled, by pushing the unlocking push plate 33, the elastic arms 322 are made to approach each other, the fastener 3221 retracts and separates from the fastening portion 1311, thereby achieving the purpose of quick disassembly; one end of the anti-disengagement sliding groove 331 abuts against the valve stem 22, which is used to restrict the sliding position of the unlocking push plate 33 and prevent it from disengaging from the elastic arm 322.

[0052] In this embodiment, an unlocking button 103 is provided on the unlocking opening 102 and abuts against the unlocking push plate 33 .

[0053] In the above structure, the unlocking button 103 is made of rubber or silicone, and is used to block the unlocking opening 102 , and can push the unlocking push plate 33 by being pressed.

[0054] In this embodiment, a return spring 333 is provided in the anti-slip groove 331 to abut against the valve stem 22 after the unlocking push plate 33 is pushed to assist in pushing the unlocking push plate 33 back to its original position.

[0055] In the above structure, the two elastic arms 322 are arranged at a V-shaped angle, so the unlocking push plate 33 can rebound under the elastic force of the elastic arms 322. In order to further ensure the reliability of the rebound, a reset spring 333 is added to assist in pushing the unlocking push plate 33 back to its original position.

[0056] In this embodiment, a positioning mark 104 is provided on a side of the base 10 facing the valve core assembly 2 .

[0057] In the above structure, the positioning mark 104 is used to display the circumferential position of the actuator assembly 1 relative to the valve core assembly 2, which is convenient for alignment to ensure that the unlocking port 102 can be aligned with the unlocking push plate 33 after the two are assembled.

[0058] In this embodiment, an outer edge of the push plate 321 is provided with an outer protrusion 3211 , and the elastic arm 322 is connected to the outer protrusion 3211 . The outer protrusion 3211 is located between adjacent quick-release ears 131 when the actuator assembly 1 and the valve core assembly 2 are assembled.

[0059] In the above structure, based on the positioning mark 104, this structure is used to perform physical anti-mistake prevention, so that the actuator assembly 1 and the valve core assembly 2 can quickly align their circumferential positions with each other through a small amount of relative rotation when assembled, ensuring that the unlocking port 102 can be aligned with the unlocking push plate 33.

[0060] In this embodiment, when the actuator assembly 1 and the valve core assembly 2 are assembled, the base 10 and the valve cover 21 or the housing 20 are fixed against each other.

[0061] In the above structure, the base 10 is fixed against the valve cover 21 or the housing 20 , so that the base 10 has a fulcrum, thereby preventing the base 10 from rotating along with the knob 15 when the knob 15 rotates.

[0062] In this embodiment, the temperature package installation position 101 is cylindrical, and an anti-dropout claw 1011 is provided at the mouth of the cylinder. The anti-dropout claw 1011 abuts against the outer edge of the upper end of the temperature package 11 to prevent the temperature package 11 from falling out.

[0063] Advantages of the present invention: Before adjustment, the closing valve spring 24 pushes the valve core 23 to make it contact with the valve seat 204, so that the inlet 201 and the outlet 202 are in a cut-off state; the PTC thermistor is used to control the electric heating device 12. When the electric adjustment is started, power is supplied to the electric heating device 12 to increase the temperature of the temperature package 11. The push rod 111 extends out and abuts against the indicating cover 13 to push the indicating cover 13. At this time, the indicating cover 13 rises relative to the knob 15, and drives the quick-release module 30 connected to the valve stem 22 to rise through the quick-release ear 131, pulling the valve core 23 away from the valve seat 204 and compressing the closing valve spring 24 to achieve electric opening. When the power is cut off or the current or voltage is reduced, the temperature of the temperature package 11 drops, the push rod 111 loses the thrust, and the valve core 23 is pushed by the closing valve spring 24 to reset and approach or contact the valve seat 204. At the same time, the quick-release module 30 and the indicating cover 13 are driven by the valve stem 22 to descend together; when manually adjusting, rotate the knob 15, and the knob 15 rises relative to the threaded seat 14. At this time, the boosting part 151 of the knob 15 abuts against the shoulder 133 to push the indicating cover 13 upward, and drives the quick-release module 30 connected to the valve stem 22 to rise through the quick-release ear 131, pulling the valve core 23 away from the valve seat 204 and compressing the closing valve spring 24 to achieve manual opening. When the knob 15 is rotated in the reverse direction, the knob 15 descends, the indicating cover 13 loses support, and the valve core 23 is pushed by the closing valve spring 24 to reset and approach or contact the valve seat 204. At the same time, the quick-release module 30 and the indicating cover 13 are driven by the valve stem 22 to descend together; because there is a sliding section 132 on the indicating cover 13, there will be a clutch with the knob 15 during electric adjustment, so that they do not interfere with each other; at the same time, because there is only one closing valve spring 24, it can effectively ensure that all the elastic forces of the closing valve spring 24 can act on the valve core 23 when closing the valve, avoiding the elastic force loss caused by the existing double springs pushing against each other, and directly buckling and pressing the actuator assembly 1 and the valve core assembly 2 during installation can realize the docking of the quick-release ear 131 and the quick-release module 30.

[0064] The above is only the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A detachable valve core integrated electric actuator, comprising an actuator assembly, the actuator assembly including a base, characterized in that: Above the base, there is a temperature bulb installation position. The temperature bulb installation position is provided with a temperature bulb with a push rod facing upwards and an electric heating device at the bottom. It also includes an indicating cover sleeved outside the temperature bulb and abutted against the push rod to realize up and down movement. Below the indicating cover, there is a quick-release ear passing through the base. The upper end of the indicating cover is provided with a sliding section, and the outer wall of the upper end of the sliding section is provided with a shoulder. Above the base, there is also a threaded seat fixed outside the indicating cover. A knob is sleeved outside the threaded seat, and the knob rotates to be threadedly engaged with the threaded seat to realize lifting. The top of the knob is open, and the inner wall is provided with a boosting part located inside the sliding section. When the knob rises, it abuts against the shoulder to drive the indicating cover to move upwards. It also includes a valve core assembly. The valve core assembly includes a housing. The housing is provided with an inlet, an outlet, and a control port with a valve cover. Inside the housing, there is a valve seat. The inlet communicates with the lower part of the valve seat, and the outlet communicates with the upper part of the valve seat. The valve cover is provided with a valve rod. One end of the valve rod passes through the valve cover and is exposed outside, and the other end is provided with a valve core. A closing valve spring is sleeved on the valve rod, with one end abutting against the valve cover and the other end abutting against the valve core to press the valve core onto the valve seat. One end of the valve rod exposed outside the valve cover is provided with a quick-release module that is buckled with the quick-release ear when the actuator assembly and the valve core assembly are assembled. The quick-release ear is provided with a buckling part. The quick-release module includes a connecting bracket and an elastic buckle. The connecting bracket includes a pulling plate and a fixing wall located at the outer edge of the pulling plate and extending upwards. The fixing wall is provided with a through-opening chute. The elastic buckle includes a pushing plate located above the pulling plate and an elastic arm connected to the pushing plate and located inside the fixing wall. A fastener is provided on the elastic arm, and the fastener passes through and protrudes out of the chute. When the actuator assembly and the valve core assembly are assembled, the quick-release ear is located outside the fixing wall and is buckled and connected with the fastener through the buckling part. The valve rod passes through the pulling plate and the pushing plate, and a clamping part is arranged between the two to realize the connection with the connecting bracket and the elastic buckle. There are two quick-release ears, arranged at an interval of 180 degrees along the circumferential direction of the indicating cover. There are two fixing walls, arranged at an interval of 180 degrees along the circumferential direction of the pulling plate. There are two elastic arms, symmetrically arranged at an interval of 180 degrees along the circumferential direction of the pushing plate. The connection part of the elastic arm and the pushing plate and the swinging end of the elastic arm are spaced 90 degrees in the circumferential direction of the pushing plate. The two elastic arms are arranged at a V-shaped angle, and unlocking chutes are arranged on the outer sides of the elastic arms. It also includes an unlocking push plate. The center of the unlocking push plate is provided with an anti-detachment chute for the valve rod to pass through. The side of the unlocking push plate facing the elastic arm is provided with a tightening groove adapted to the unlocking chute. When the unlocking push plate is pushed in the length direction of the anti-detachment chute, the swinging ends of the elastic arms are made to approach each other. There is an unlocking opening corresponding to the unlocking push plate on the side wall of the base in the assembled state of the actuator assembly and the valve core assembly.

2. The detachable valve core integrated electric actuator according to claim 1, characterized in that: An unlocking button abutting against the unlocking push plate is provided on the unlocking opening.

3. The detachable valve core integrated electric actuator according to claim 1 or 2, characterized in that: A return spring abutting against the valve rod after the unlocking push plate is pushed to assist in pushing the unlocking push plate to reset is provided in the anti-detachment chute.

4. The detachable valve core integrated electric actuator according to claim 1, characterized in that: A positioning mark is provided on the side of the base facing the valve core assembly.

5. A detachable valve core integrated electric actuator according to claim 1 or 4, characterized in that: An outer convex part is provided on the outer edge of the pushing plate. The elastic arm is connected to the outer convex part. The outer convex part is located between adjacent quick-release ears when the actuator assembly and the valve core assembly are assembled.

6. The detachable valve core integrated electric actuator according to claim 1, characterized in that: When the actuator assembly is assembled with the valve core assembly, the base abuts and is fixed against the valve cover or the housing.

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